LOCKSET INDICATOR ASSEMBLIES
20250341117 ยท 2025-11-06
Inventors
- Kenton H. Barker (Fort Collins, CO, US)
- Nathanael S. Murphy (Queen Creek, AZ, US)
- Austin Roup (Woodland Park, CO, US)
- Appu Jacob Varghese (Monument, CO, US)
Cpc classification
E05B1/0084
FIXED CONSTRUCTIONS
International classification
Abstract
An exemplary indicator assembly is configured for use with a lockset, and generally includes an indicator, an indicator lever, an actuating lever, and a slider. The indicator lever has a first indicator lever position in which the indicator lever causes the indicator to display a first indicium, and a second indicator lever position in which the indicator does not display the first indicium. The actuating lever is operable to cause an indicator lever movement as the actuating lever performs an actuating lever movement. The slider is operable to cause the actuating lever movement as the slider moves between a first slider position and a second slider position. The slider is configured to move from the first slider position to the second slider position in response to an actuating input provided by the lockset.
Claims
1. An indicator assembly for a lockset having a first lockset state and a second lockset state, the indicator assembly comprising: an indicator operable to selectively display a first indicium relating to the first lockset state; an indicator lever having a first indicator lever position in which the indicator lever causes the indicator to display the first indicium, and a second indicator lever position in which the indicator does not display the first indicium; an actuating lever operable to drive the indicator lever between the first indicator lever position and the second indicator lever position as the actuating lever moves between a first actuating lever position and a second actuating lever position; and a slider operable to drive the actuating lever between the first actuating lever position and the second actuating lever position as the slider moves between a first slider position and a second slider position; wherein the slider is configured to move from the first slider position to the second slider position in response to an actuating input provided by the lockset.
2. The indicator assembly of claim 1, wherein the actuating lever and the slider are engaged with one another via a lost motion connection and a spring; wherein, with movement of the actuating lever from the first actuating lever position to the second actuating lever position blocked, the lost motion connection is configured to permit the slider to move from the first slider position to the second slider position without moving the actuating lever to the second actuating lever position; and wherein, with movement of the actuating lever from the first actuating lever position to the second actuating lever position permitted, the spring is configured to drive the actuating lever from the first actuating lever position toward the second actuating lever position in response to movement of the slider from the first slider position to the second slider position.
3. The indicator assembly of claim 1, wherein the actuating lever comprises a counterweight urging the actuating lever toward the second actuating lever position.
4. The indicator assembly of claim 1, wherein the indicator lever comprises a bearing surface operable to engage the indicator; wherein the bearing surface is displaced by a bearing surface displacement as the indicator lever moves from the first indicator lever position to the second indicator lever position; wherein the slider is displaced by a slider displacement as the slider moves from the first slider position to the second slider position; wherein the bearing surface displacement is greater than the slider displacement.
5. The indicator assembly of claim 1, further comprising a spring cage defining a boundary between an interior region within a footprint of the spring cage and an exterior region outside the footprint of the spring cage; wherein the slider extends between the interior region and the exterior region.
6. The indicator assembly of claim 5, wherein the slider receives the actuating input in the interior region.
7. The indicator assembly of claim 1, wherein the indicator comprises an indicator sign including the first indicium relating to the first lockset state and a second indicium relating to the second lockset state; wherein the indicator sign has a first indicator sign position in response to the first indicator lever position, and is configured to display the first indicium via a window when in the first indicator sign position; and wherein the indicator sign has a second indicator sign position in response to the second indicator lever position, and is configured to display the second indicium via the window when in the second indicator sign position.
8. The indicator assembly of claim 7, further comprising a spring cage, wherein the indicator sign covers at least a portion of the spring cage when the indicator sign is in at least one of the first indicator sign position or the second indicator sign position.
9. A lockset comprising the indicator assembly of claim 1, wherein the lockset comprises: a movable component that moves as the lockset transitions between the first lockset state and the second lockset state; and a pivot crank operable to pivot in response to movement of the movable component; wherein the actuating input comprises pivotal movement of the pivot crank.
10. The lockset of claim 9, wherein the movable component is configured to move along a first axis as the lockset transitions between the first lockset state and the second lockset state; wherein the slider is configured to slide along a second axis in response to the actuating input; and wherein the first axis and the second axis are transverse to one another.
11. A method, comprising: causing a slider to perform a slider movement in response to movement of a lockset from a first lockset state to a second lockset state, wherein the slider movement results in a slider displacement; causing a transmission engaged with the slider to at least selectively perform a transmission movement in response to the slider movement; and causing an indicator sign engaged with the transmission to perform an indicator sign movement in response to the transmission movement, wherein the indicator sign movement results in an indicator sign displacement; wherein the transmission provides a mechanical advantage such that the indicator sign displacement is greater than the slider displacement.
12. The method of claim 11, wherein the transmission comprises an actuating lever engaged with the slider, and an indicator lever engaged with the indicator sign; wherein the transmission movement comprises an actuating lever movement and an indicator lever movement.
13. The method of claim 12, wherein the first actuating lever movement comprises a first pivotal actuating lever movement about a first pivot axis; and wherein the first indicator lever movement comprises a first pivotal indicator lever movement about a second pivot axis.
14. The method of claim 11, wherein the first indicator sign movement comprises movement of the indicator sign from a first indicator sign position to a second indicator sign position; wherein the indicator sign in the first indicator sign position displays a first indicium relating to the first lockset state; and wherein the indicator sign in the second indicator sign position displays a second indicium relating to the second lockset state.
15. The method of claim 11, wherein the transmission is engaged with the slider via a lost motion connection and an anti-jam spring; wherein causing the transmission to at least selectively perform the transmission movement in response to the slider movement comprises: causing the lost motion connection to permit the slider movement when the transmission movement is blocked; and causing the anti-jam spring to drive the transmission in the transmission movement in response to the slider movement when the transmission movement is not blocked.
16. A lockset having a first lockset state and a second lockset state, the lockset comprising: an escutcheon, the escutcheon comprising: a housing including a window; and a shield positioned within the escutcheon, the shield comprising a display region aligned with the window, a first region positioned on a first side of the window, and a second region positioned on an opposite second side of the window, wherein the housing covers each of the first region and the second region; and an indicator sign comprising a front wall facing the shield, a first indicium relating to the first lockset state, and a second indicium relating to the second lockset state; wherein, with the lockset in the first lockset state, the indicator sign is in a first indicator sign position in which the first indicium is aligned with the window and the second indicium is aligned with the second region; wherein, with the lockset in the second lockset state, the indicator sign is in a second indicator sign position in which the first indicium is aligned with the first region and the second indicium is aligned with the window; and wherein the shield prevents the front wall of the indicator sign from sliding against the housing as the indicator sign moves between the first indicator sign position and the second indicator sign position.
17. The lockset of claim 16, wherein the display region is raised and projects into the window.
18. The lockset of claim 16, wherein the front wall comprises a recessed region and a lip projecting beyond the recessed region toward the shield such that the lip discourages the recessed region from contacting the shield.
19. The lockset of claim 16, wherein the indicator comprises a frame and a label adhered to the frame, wherein the label comprises at least one of the first indicium or the second indicium.
20. The lockset of claim 16, wherein the housing comprises a housing front wall and a housing sidewall extending rearward from the housing front wall; wherein the shield comprises a shield front wall and a shield sidewall extending rearward from the shield front wall; wherein the indicator sign comprises an indicator sign sidewall extending rearward from the front wall of the indicator sign; and wherein the shield sidewall is captured between the housing sidewall and the indicator sign sidewall to discourage contact between the indicator sign sidewall and the housing sidewall.
21. A lockset having a locked state and an unlocked state, the lockset comprising: a movable component configured to move along a longitudinal axis as the lockset transitions between the locked state and the unlocked state; a first rotary component mounted for rotation about a first rotational axis in response to movement of the movable component along the longitudinal axis, wherein the first rotational axis is transverse to the longitudinal axis; and an indicator sign configured to move between a lock-indicating position and an unlock-indicating position in response to pivoting of the first rotary component.
22. The lockset of claim 21, further comprising a slider configured to move along a slider axis in response to rotation of the first rotary component about the first rotational axis; wherein the slider is engaged with the indicator sign and configured to move the indicator sign between the lock-indicating position and an unlock-indicating position as the slider moves along the slider axis.
23. The lockset of claim 21, further comprising a second rotary component mounted for rotation about a second rotational axis in response to rotation of the first rotary component about the first rotational axis; wherein the second rotational axis is transverse to the longitudinal axis.
24. The lockset of claim 23, further comprising a slider configured to move along a slider axis in response to rotation of the second rotary component about the second rotational axis; wherein the slider is engaged with the indicator sign and configured to move the indicator sign between the lock-indicating position and an unlock-indicating position as the slider moves along the slider axis.
25. A lockset having a first lockset state and a second lockset state; the lockset comprising: a chassis comprising a movable component operable to travel through a movable component displacement distance to selectively occupy a first movable component position in the first lockset state and a second movable component position in the second lockset state; an indicator operable to travel through an indicator sign displacement distance to selectively occupy a first indicator position in the first lockset state and a second indicator position in the second lockset state, wherein the indicator sign displacement distance is greater than the movable component displacement distance, wherein the indicator is configured to display a first indicium relating to the first lockset state when in the first indicator position, and wherein the indicator is configured to display a second indicium relating to the second lockset state when in the second indicator position; and a mechanical amplifier pivotably mounted to the chassis, wherein the mechanical amplifier is configured to move the indicator through the indicator displacement distance in response to movement of the movable component through the movable component displacement distance.
26. The lockset of claim 25, wherein the movable component is mounted for linear movement along a first axis between the first movable component position and the second movable component position; and wherein the indicator is mounted for linear movement along a second axis between the first indicator position and the second indicator position.
27. The lockset of claim 26, wherein the first axis is a longitudinal axis of the lockset; and wherein the second axis is transverse to the first axis.
28. The lockset of claim 26, wherein each of the first axis and the second axis is a vertical axis.
29. The lockset of claim 25, wherein the movable component is mounted for sliding movement along a longitudinal axis of the lockset; and wherein the mechanical amplifier is mounted for pivotal movement about a pivot axis transverse to the longitudinal axis.
30. The lockset of claim 25, wherein the mechanical amplifier is mounted for pivotal movement about a pivot axis parallel to a longitudinal axis of the lockset.
Description
BRIEF DESCRIPTION OF THE FIGURES
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DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
[0029] Although the concepts of the present disclosure are susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described herein in detail. It should be understood, however, that there is no intent to limit the concepts of the present disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives consistent with the present disclosure and the appended claims.
[0030] References in the specification to one embodiment, an embodiment, an illustrative embodiment, etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may or may not necessarily include that particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. It should further be appreciated that although reference to a preferred component or feature may indicate the desirability of a particular component or feature with respect to an embodiment, the disclosure is not so limiting with respect to other embodiments, which may omit such a component or feature. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to implement such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0031] As used herein, the terms longitudinal, lateral, and transverse may be used to denote motion or spacing along three mutually perpendicular axes, wherein each of the axes defines two opposite directions. These terms are used for case and convenience of description, and are without regard to the orientation of the system with respect to the environment. For example, descriptions that reference a longitudinal direction may be equally applicable to a vertical direction, a horizontal direction, or an off-axis orientation with respect to the environment.
[0032] Furthermore, motion or spacing along a direction defined by one of the axes need not preclude motion or spacing along a direction defined by another of the axes. For example, elements that are described as being laterally offset from one another may also be offset in the longitudinal and/or transverse directions, or may be aligned in the longitudinal and/or transverse directions. Moreover, the term transverse may also be used to describe motion or spacing that is non-parallel to a particular axis or direction. For example, an element that is described as being movable in a direction transverse to the longitudinal axis may move in a direction that is perpendicular to the longitudinal axis and/or in a direction oblique to the longitudinal axis. The terms are therefore not to be construed as limiting the scope of the subject matter described herein to any particular arrangement unless specified to the contrary.
[0033] Additionally, it should be appreciated that items included in a list in the form of at least one of A, B, and C can mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Similarly, items listed in the form of at least one of A, B, or C can mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Items listed in the form of A, B, and/or C can also mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Further, with respect to the claims, the use of words and phrases such as a, an, at least one, and/or at least one portion should not be interpreted so as to be limiting to only one such element unless specifically stated to the contrary, and the use of phrases such as at least a portion and/or a portion should be interpreted as encompassing both embodiments including only a portion of such element and embodiments including the entirety of such element unless specifically stated to the contrary.
[0034] In the drawings, some structural or method features may be shown in certain specific arrangements and/or orderings. However, it should be appreciated that such specific arrangements and/or orderings may not necessarily be required. Rather, in some embodiments, such features may be arranged in a different manner and/or order than shown in the illustrative figures unless indicated to the contrary. Additionally, the inclusion of a structural or method feature in a particular figure is not meant to imply that such feature is required in all embodiments and, in some embodiments, may be omitted or may be combined with other features.
[0035] The disclosed embodiments may, in some cases, be implemented in hardware, firmware, software, or a combination thereof. The disclosed embodiments may also be implemented as instructions carried by or stored on one or more transitory or non-transitory machine-readable (e.g., computer-readable) storage media, which may be read and executed by one or more processors. A machine-readable storage medium may be embodied as any storage device, mechanism, or other physical structure for storing or transmitting information in a form readable by a machine (e.g., a volatile or non-volatile memory, a media disc, or other media device).
[0036] With reference to
[0037] The lockset 100 generally includes a first handleset 110 mounted to the first side 91 of the door 90, a second handleset 120 mounted to the second side 92 of the door 90, a chassis 130 seated in the cross-bore 93 and engaged with the first handleset 110 and the second handleset 120, and a latch mechanism 140 mounted in the latch bore 94 and engaged with the chassis 130. As described herein, the lockset 100 has a locked/unlocked state that defines whether the latch mechanism 140 can be actuated by an outside handle of the lockset 100, and the locked/unlocked state of the lockset 100 is defined by the locking/unlocking position of a control lug 135 of the chassis 130.
[0038] The illustrated lockset 100 includes an indicator assembly 200 that, as described herein, is configured to display a visual indication regarding the locked/unlocked state of the lockset 100, and which changes the displayed visual indication in response to an actuating movement transmitted by the chassis 130. In the illustrated form, the first handleset 110 includes the indicator assembly 200. It should be appreciated, however, that an indicator assembly 200 may additionally or alternatively be provided to the second handleset 120.
[0039] As noted above, the indicator assembly 200 is configured to change states in response to an actuating movement transmitted by the chassis 130. In certain embodiments, an indicator assembly 200 may be positioned on a first side of the chassis 130 (e.g., the egress or inner side of the chassis 130) such that the indicator assembly 200 can be actuated by a first moving component of the chassis 130. Additionally or alternatively, an indicator assembly 200 may be positioned on an opposite second side of the chassis 130 (e.g., the non-egress or outer side of the chassis 130) such that the indicator assembly 200 can be actuated by a different moving component of the chassis 130. In certain embodiments, the chassis 130 may be operable to actuate each and either of an interior indicator assembly and an exterior indicator assembly.
[0040] The first handleset 110 is mounted to the first side 91 of the door 90, and generally includes a first spring cage 111, a first handle 114 mounted to the first spring cage 111 for rotation about a longitudinal axis 101 of the lockset 100, a first lock state selector 115 operable to adjust the locked/unlocked state of the lockset 100, an escutcheon 160, and an indicator assembly 200 mounted in the escutcheon 160. The first spring cage 111 generally includes a spring cage housing 112 and a first drive spindle 113 rotatably mounted to the housing 112 and coupled with the first handle 114. While the illustrated first handle 114 is provided in the form of a lever, it should be appreciated that the first handle 114 may be provided in another form, such as that of a knob.
[0041] The second handleset 120 is mounted to the second side 92 of the door 90, and generally includes a second spring cage 121, and a second handle 124 mounted to the second spring cage 121 for rotation about the longitudinal axis 101. While the illustrated second handle 124 is provided in the form of a lever, it should be appreciated that the second handle 124 may be provided in another form, such as that of a knob. In the illustrated form, the second handleset 120 further includes a second lock state selector 125 operable to adjust the locked/unlocked state of the lockset 100. It should be appreciated that the second lock state selector 125 may be provided in the same form as the lock state selector 115 of the first handleset 110, or may be provided in another form.
[0042] In the illustrated form, each of the first handleset 110 and the second handleset 120 includes a corresponding and respective lock state selector 115, 125. In other embodiments, one of the handlesets 110, 120 may include a lock state selector while the other handleset 110, 120 does not include a lock state selector. Example forms of a lock state selector for an interior handleset include, for example, a pushbutton, a turn-button, a push-turn button, and a lock cylinder. Example forms of a lock state selector for an exterior handleset include, for example, an override mechanism, a recessed turn-button, a pin-actuated kickoff, and a lock cylinder. In the illustrated form, the first lock state selector 115 is provided in the form of an override mechanism including a plug that, when rotated, is operable to drive the control lug 135 from its locking position to its unlocking position. Additionally, the illustrated second lock state selector 125 is provided in the form of a pushbutton that, when depressed, moves the control lug 135 from its unlocking position to its locking position.
[0043] With additional reference to
[0044] One of the chassis spindles 131, 132 is an inside chassis spindle positioned on an interior side of the chassis 130, and the other of the chassis spindles 131, 132 is an outside chassis spindle positioned on an exterior side of the chassis 130. The inside chassis spindle 131/132 is connected with the inside handle 114/124 such that the inside handle 114/124 is at least selectively operable to rotate the inside chassis spindle 131/132 to thereby retract the shuttle 134. The outside chassis spindle 131/132 is connected with the outside handle 114/124 such that the outside handle 114/124 is selectively operable to rotate the outside chassis spindle 131/132 to thereby retract the shuttle 134.
[0045] The control lug 135 has a locking/unlocking position corresponding to the locked/unlocked state of the lockset 100. Stated another way, the control lug 135 is in a locking position when the lockset 100 is in the locked state, and is in an unlocking position when the lockset 100 is in the unlocked state. The control lug 135 in the locking position prevents the outside handle 114/124 from retracting the shuttle 134 and actuating the latch mechanism 140, while the control lug 135 in the unlocking position permits the outside handle 114/124 to retract the shuttle 134 and actuate the latch mechanism 140.
[0046] The cam assembly 136 is engaged with the control lug 135, and is configured to move the control lug 135 between its locking position and its unlocking position. In certain embodiments, the cam assembly 136 is configured to move the control lug 135 from its unlocking position to its locking position in response to a locking actuation of an inside lock state selector. As one example, the cam assembly 136 may longitudinally drive the control lug 135 from its unlocking position to its locking position in response to depression of a pushbutton lock state selector 125. In certain embodiments, the cam assembly 136 is configured to move the control lug 135 from its locking position to its unlocking position in response to an unlocking actuation of an outside lock state selector. As one example, the cam assembly 136 may longitudinally move the control lug 135 from its locking position to its unlocking position in response to rotation of a plug 115 of the lock state selector 115. Cam assemblies of this type are generally known in the art, and need not be described in further detail herein.
[0047] In certain embodiments, the chassis 130 may be configured to provide a freewheel locking state, in which the outside handle 114/124 is at all times free to rotate between its home position and its actuated position. In such forms, the control lug 135 in the locking position may decouple the outside handle 114/124 from the outside chassis spindle 131/132 to prevent actuation of the shuttle 134, and may rotationally couple the outside handle 114/124 to the outside chassis spindle 131/132 when in the unlocking position.
[0048] In certain embodiments, the chassis 130 may be configured to provide a locked stationary locking state, in which the outside handle 114/124 is free to rotate only when the lockset 100 is in the unlocked state. For example, the control lug 135 in the locking position may rotationally lock the outside handle 114/124 to the body portion 133, and may rotationally decouple the outside handle 114/124 from the body portion 133 to permit rotation of the outside handle 114/124 when in the unlocking position.
[0049] With additional reference to
[0050] The chassis 130 includes least one pivot crank 190 operable to actuate the indicator assembly 200 as the lockset 100 moves between its locked and unlocked states. In the illustrated form, the chassis 130 includes two pivot cranks 190, which may facilitate handing selection for the lockset 100 as described herein. Each pivot crank 190 is mounted to the chassis 130 for pivotal movement between a first pivot crank position and a second pivot crank position, and generally includes a first lobe 192 and at least one second lobe 194. For example, each pivot crank 190 may be pivotably mounted to the housing component 180 via a corresponding and respective pivot pin 139.
[0051] The first lobe 192 projects beyond an end face 181 of the housing component 180, and is operable to engage the indicator assembly 200 as described herein. The second lobe 194 is operable to project into the channel 182 such that a moving component 138 of the chassis 130 is operable to engage the second lobe 194 to thereby drive the pivot crank 190 from its first position to its second position. In the illustrated form, a length of the first lobe 192 is greater than a length of the second lobe 194 such that a displacement multiplication is achieved. Stated another way, the pivot crank 190 is operable to convert a relatively small input displacement (e.g., from the moving component 138 to the second lobe 194) to a relatively larger output displacement (e.g., from the first lobe 192 to the indicator assembly 200), thereby providing a mechanical advantage. As such, at least certain embodiments of the pivot crank 190 may be referred to as a mechanical amplifier.
[0052] In the illustrated form, the chassis 130 includes a first pivot crank 190 and a second pivot crank 190, which may facilitate adjustment of the lockset 100 between a first handing configuration and a second handing configuration. In each handing configuration, a corresponding one of the pivot cranks 190 is an active pivot crank that is operable to be engaged by the moving component 138, and the other of the pivot cranks 190 is an idle pivot crank that is not operable to be engaged by the moving component 138. In certain embodiments, the lockset 100 may have a first handing configuration in which the first pivot crank 190 is the active pivot crank and the second pivot crank 190 is the idle pivot crank. In order to transition the lockset 100 to a second handing orientation, the chassis 130 may be rotated 180 about the longitudinal axis 101 to an orientation in which the first pivot crank 190 is the idle pivot crank and the second pivot crank 190 is the active pivot crank.
[0053] As noted above, the active pivot crank 190 is operable to be engaged by a moving component 138 of the chassis 130 such that the pivot crank 190 pivots between a first pivot crank position and a second pivot crank position as the lockset 100 transitions between its locked state and its unlocked state. In certain embodiments, the moving component 138 that actuates the active pivot crank 190 is the control lug 135, for example as described with reference to FIGS. 13 and 14. In certain embodiments, the moving component 138 that actuates the active pivot crank 190 is a reversing lever 414, for example as described with reference to
[0054] With additional reference to
[0055] The shield 170 is positioned at least partially within the housing 161, and generally includes a front panel 174, a pair of side panels 175 that extend rearward from the front panel 174, and a viewing area 176 that is aligned with the window 166. In certain embodiments, the viewing area 176 may be raised relative to the remainder of the front panel 174 such that material of the shield 170 projects into the window 166. In certain embodiments, the shield 170 may be formed of a transparent or translucent material. For example, the shield 170 may be formed of clear polycarbonate. In certain forms, the housing 161 may include one or more lips 165, which may abut the rear edges of the shield side panels 175 to restrict longitudinal movement of the shield 170 relative to the housing 161.
[0056] While other forms are contemplated, in the illustrated embodiment, the shield 170 is significantly larger than the window 166, and includes an upper portion 178 above the window 166 and a lower portion 179 below the window 166. In certain embodiments, each of the upper portion 178 and the lower portion 179 may have a corresponding and respective height in the range of 0.5 inch to 1.5 inch. The enlarged size of the shield 170 compared to the window 166 may serve one or more functions that may be desirable in certain embodiments. For example, the greater amount of material may improve part stiffness to resist deflection. In certain forms, the side panels 175 may abut a baseplate 210 of the indicator assembly 200 to further resist deflection, for example in the event that a user presses on the front face of the viewing area 176. Sidewall support from the baseplate 210 may additionally or alternatively resist squeezing of the viewing area 176 from the sides. Additionally or alternatively, the shield 170 may prevent the indicator sign 260 from rubbing against the rear side of the housing 161 as the sign 260 moves throughout its standard movement range. In certain embodiments, this provides a consistent and smooth bearing surface that at least partially surrounds the indicator sign 260 and facilitates the sliding movement thereof.
[0057] With additional reference to
[0058] The illustrated baseplate 210 includes a spring cage mounting location 211 in which the spring cage 111 is seated, and which defines a boundary between an exterior first region 218 and an interior second region 219. The baseplate 210 also includes a pair of vertically-oriented slots 212 that extend between the first region 218 outside the mounting location 211 and the second region 219 within the mounting location 211. The baseplate 210 also includes a first mounting post 214 to which the actuating lever 240 is pivotably mounted, and a second mounting post 215 to which the indicator lever 250 is mounted. In the illustrated embodiment, the baseplate 210 further includes a pair of stops 216 configured to limit the travel of the indicator sign 260 in the upward direction. In certain forms, the baseplate 210 may include one or more fastener apertures 217 through which the baseplate 210 may be coupled with the chassis 130 by an appropriate fastener, such as a screw.
[0059] The slider 220 is mounted to the baseplate 210 for sliding movement along a slider axis 220 between a first slider position and a second slider position, and may be biased toward the first slider position by a bias member 202. While the illustrated bias member 202 is provided in the form of a compression spring, it should be appreciated that the bias member 202 may be provided in another form, such as one including an extension spring, a torsion spring, a leaf spring, an elastic member, and/or magnets. In the illustrated form, the bias member 202 is captured between the baseplate 210 and the slider 220 to thereby bias the slider 220 downward toward the first slider position. In certain embodiments, the slider 220 may include a post 221 to which the bias member 202 may be mounted.
[0060] The slider 220 includes a lower portion 222, an upper portion 224, and a pair of legs 228 extending between and connecting the lower portion 222 and the upper portion 224. The lower portion 222 is seated within second region 219 and the footprint of the spring cage 111, and receives the actuating input from the chassis 130 as described herein. The upper portion 224 is positioned in the first region 218 and outside of the spring cage 111, and is operable to engage the transmission 230 as described herein. The upper portion 224 may include a post 225 through which the slider 220 engages the transmission 230 as described herein. The legs 228 are recessed relative to the lower portion 222 and the upper portion 224, which may permit the legs 228 to be positioned within the slots 212 and behind the lip of the spring cage housing 112 such that the slider 220 is operable to slide between its first and second positions without interference from the spring cage 111.
[0061] The illustrated transmission 230 generally includes the actuating lever 240, the indicator lever 250, and an anti-jam spring 231. In the illustrated form, the anti-jam spring 231 generally includes a first leg 232, a second leg 234, and a coiled body potion 233 connected between the legs 232, 234. The body portion 233 is mounted to a post of the actuating lever 240 such that the spring 231 travels with the actuating lever 240. The first leg 232 engages the post 225 of the slider 220, and the second leg 234 engages a flange 245 of the actuating lever 240 such that movement of the slider 220 from the first slider position to the second slider position causes the anti-jam spring 231 to urge the actuating lever 240 to perform a first actuating lever movement from a first actuating lever position to a second actuating lever position as described herein.
[0062] The illustrated actuating lever 240 generally includes a mounting feature 241, a first arm 242 positioned on a first side of the mounting feature 241, and a second arm 244 positioned on an opposite second side of the mounting feature 241. The mounting feature 241 is engaged with the mounting post 214 such that the baseplate 210 supports the actuating lever 240 for pivotal movement between a first actuating lever position and a second actuating lever position. In the illustrated form, the first arm 242 includes a counterweight 243 which, as described herein, aids in biasing the actuating lever 240. In certain embodiments, at least 60 percent, at least 70 percent, or at least 80 percent of the mass of the actuating lever 240 may be provided by the counterweight 243. The second arm 244 includes a flange 245 that projects rearward from the second arm 244 and provides an anchor point for the second leg 234, and a post 246 that projects forward from the second arm 244 for engagement with the indicator lever 250.
[0063] The actuating lever 240 is engaged with the slider 220 via a lost motion connection 239 and the anti-jam spring 231. In the illustrated form, the lost motion connection 239 is defined in part by the slider post 225, and in part by an aperture 247 in the actuating lever 240. The aperture 247 is significantly larger than the post 225 such that the slider 220 is capable of performing the first slider movement (e.g., movement from the first slider position to the second slider position) without causing a corresponding movement of the actuating lever 240. When the actuating lever 240 is free to perform its first movement (e.g., movement from the first actuating lever position to the second actuating lever position), the anti-jam spring 231 causes the first actuating lever movement in response to the first slider movement. When the first actuating lever movement is blocked, the anti-jam spring 231 deforms such that the first slider movement is permitted even when the actuating lever 240 is blocked from performing its first movement.
[0064] The illustrated indicator lever 250 generally includes a mounting feature 251 and an arm 252 that extends from the mounting feature 251 to a bearing post 256 through which the indicator lever 250 may engage the indicator sign 260. The indicator lever 250 also includes an aperture 254 into which the post 246 of the actuating lever 240 projects. As described herein, the indicator lever 250 is configured to perform a first indicator lever movement (e.g., movement from a first indicator lever position to a second indicator lever position) in response to a first actuating lever movement (e.g., movement of the actuating lever 240 from the first actuating lever position to the second actuating lever position) to thereby cause the indicator sign 260 to perform a first indicator sign movement (e.g., from the first indicator sign position to the second indicator sign position).
[0065] In the illustrated form, the actuating lever 240 and the indicator lever 250 are mounted for pivotal movement about two different axes. More particularly, the actuating lever 240 is mounted for pivotal movement about a first axis defined by the first mounting post 214, and the indicator lever 250 is mounted for pivotal movement about a second axis defined by the second mounting post 215. In certain embodiments, this arrangement may provide for a mechanical advantage to the movement of the indicator sign 260 such that a smaller displacement of the slider 220 results in a larger displacement of the indicator sign 260. In various embodiments, the mechanical advantage may be provided such that the indicator sign displacement d260 is at least twice the slider displacement d220, at least three times the slider displacement d220, or at least six times the slider displacement d220. The transmission 230 may thus be considered an example of a mechanical amplifier that causes the indicator sign 260 to move by a greater distance d260 in response to movement of a movable component (e.g., the slider 220) by a lesser distance d220.
[0066] With additional reference to
[0067] The label 270 generally includes a first indicating region 272 including first indicia 273 relating to a first state of the lockset 100 (e.g., the unlocked state), and a second indicating region 274 including second indicia 275 relating to a second state of the lockset 100 (e.g., the locked state). The label 270 is sized and shaped to extend across the front wall 264 and onto the sidewalls 265 such that each sidewall 265 includes a corresponding and respective portion of each indicating region 272, 274.
[0068] In certain embodiments, the frame 261 may include one or more lips 262 that define a slightly recessed area 263 in which the label 270 is seated. Such lip(s) 262 may provide a protective standoff for the label 270 to thereby discourage the label 270 from rubbing against the rear side of the shield 170 as the sign 260 moves between its first and second positions.
[0069] The indicator sign 260 is mounted in the escutcheon 160 for movement between a first indicator sign position and a second indicator sign position. While other forms are contemplated, in the illustrated form, the indicator sign 260 is mounted for movement along a vertical indicator sign axis 260 between the first indicator sign position and the second indicator sign position. When the indicator sign 260 is in the first indicator sign position, the first indicating region 272 is aligned with the escutcheon window 166 such that the first indicia 273 are visible through the viewing area 176. When the indicator sign 260 is in the second indicator sign position, the second indicating region 274 is aligned with the escutcheon window 166 such that the second indicia 275 are visible through the viewing area 176. As described herein, the indicator assembly 200 is configured to move the indicator sign 260 between its first and second positions in response to an actuating movement imparted by the chassis 130.
[0070] As noted above, the illustrated indicator sign 260 is provided as a multi-piece construction, in which a label 270 is adhered to a frame 261. This arrangement may provide one or more advantages. As one example, the multi-piece construction may enable the frame 261 to be formed separately from the indicia-bearing component (e.g., the label 270), thereby allowing any desired geometry to be molded into the frame 261 without concern about introducing cosmetic defects into the indicator sign graphics. In certain embodiments, the frame 261 may be formed of a resin having properties that are preferred for a functional part.
[0071] In the illustrated form, each indicating region 272, 274 includes plural indicia, each relating to the corresponding state of the lockset 100. For example, the first indicating region 272 includes one or more first indicia 273, which in the illustrated form include a first symbol (an unlocked padlock), a first word (UNLOCKED) and a first background color (white). Each of these first indicia 273 may serve to indicate to the user that the lockset 100 is unlocked when the first indicating region 272 is aligned with the window 166. Similarly, the second indicating region 274 includes one or more second indicia 275, which in the illustrated form includes a second symbol (a locked padlock), a second word (LOCKED), and a second background color (red). Each of these second indicia 275 may serve to indicate to the user that the lockset 100 is locked when the second indicating region 274 is aligned with the window 166. It should be appreciated, however, that additional and/or alternative forms of indicia may be used in connection with the first indicating region 272 and/or the second indicating region 274.
[0072] As described herein, in the illustrated embodiment, a mechanical indicator sign 260 is slidably mounted in the escutcheon 160 to selectively display one or more indicia relating to one or more states of the lockset 100, and is actuated by the transmission 230. It is also contemplated that the transmission 230 may be utilized to actuate other form of indicators, such as electronic ink displays, light emitting diode (LED) displays, liquid crystal displays (LCDs), lights, buzzers, speakers, or another form of visual and/or audible indicator.
[0073] With additional reference to
[0074] With additional reference to
[0075] In the illustrated configuration, the movable components of the indicator assembly 200 occupy their corresponding and respective first positions when the lockset 100 is in the unlocked state, and the occupy their corresponding and respective second positions when the lockset 100 is in the locked state. It is also contemplated that this arrangement may be reversed such that the first positions correspond to the locked state and the second positions correspond to the unlocked state. Additionally, various movable components of the indicator assembly 200 are operable to move between a first position and a second position. In certain forms, a movable component may be considered capable of performing a first movement and a second movement to move between the first and second positions. For example, a component may perform or undergo a first movement in a first direction while moving from the first position to the second position, and may perform or undergo a second movement in a second direction opposite the first direction when moving from the second position to the first position.
[0076] As noted above, the chassis 130 includes a movable component 138 (e.g., a control lug 135) that moves between a locking position and an unlocking position as the lockset 100 transitions between its locked state and its unlocked state. Thus, the movable component 138 is in its unlocking position in the first state illustrated in
[0077] Upward movement of the slider 220 against the force of the bias member 202 causes the post 225 to drive the first arm 232 of the anti-jam spring 231 upward, thereby causing the spring 231 to urge the actuating lever 240 toward its second position. Should such movement of the actuating lever 240 be blocked (e.g., if the sign 260 becomes jammed and prevents pivoting of the indicator lever 250), the anti-jam spring 231 deforms, thereby permitting the slider 220 to complete its first movement even when the actuating lever 240 is blocked from movement. Should the obstruction be removed while the slider 220 is in its second position, the spring 231 may release its stored mechanical energy and drive the actuating lever 240 to its second position.
[0078] As should be evident from the foregoing, when the transmission 230 is unjammed, the first movement of the slider 220 from the first slider position to the second slider position causes a corresponding first movement of the actuating lever 240 from the first actuating arm position to the second actuating arm position. The counterweight 243 may aid in this first actuating arm movement. Due to the engagement of the post 246 with the aperture 254, this first movement of the actuating lever 240 in turn causes a corresponding first movement of the indicator lever 250 from the first indicator arm position toward the second indicator arm position. The first movement of the indicator lever 250 is transmitted to the indicator sign 260 via engagement of the bearing post 256 with the opening 268, thereby causing a first movement of the indicator sign 260 from the first indicator sign position to the second indicator sign position.
[0079] Movement of the lockset 100 from the locked state to the unlocked state causes the movable component 138 to return to its unlocking position, thereby permitting the active pivot crank 190 to return to its first position as the slider 220 performs a second slider movement from its second position to its first position under the force of the bias member 202. This second movement of the slider 220 causes a corresponding second movement of the actuating lever 240 from the second actuating arm position to the first actuating arm position. In response to the second actuating arm movement, the indicator lever 250 performs a corresponding second movement from the second indicator arm position to the first indicator arm position, thereby causing a second movement of the indicator sign 260 from the second indicator sign position to the first indicator sign position.
[0080] In certain forms, the slider 220 may be permitted a certain amount of over-travel relative to the indicator sign 260. In the illustrated form, the slider 220 continues to move upward after the sign 260 reaches the upper stops 216, which places a preload on the spring 231 and retains a snug engagement between the sign 260 and the stops 216. The over-travel may additionally or alternatively allow the design to compensate for tolerance variations and wear of the transmission components over time, as the sign 260 will still be pushed against the upper stops 216 even when there is part-to-part variation in the transmission components, or wear of the transmission components over time.
[0081] With additional reference to
[0082] With additional reference to
[0083] As the moving control lug 138, 335 moves to a second (e.g., locking) position (
[0084] In the illustrated form, the first position (
[0085] With additional reference to
[0086] The illustrated chassis 430 also includes a reversing mechanism 410, which may be mounted to the housing component 480 in the vicinity of the pivot cranks 490 such that the reversing mechanism 410 is operable to actuate the active pivot crank 490 in response to an actuating input provided by a user (e.g., by actuating a lock state selector). The illustrated reversing mechanism 410 generally includes a mounting bracket 412 and a reversing lever 414 pivotably mounted to the mounting bracket 412. The reversing lever 414 includes an input arm 416 operable to be engaged by a lock state selector, and an output arm 418 operable to engage the active pivot crank 190. As described herein, the reversing mechanism 410 is configured to reverse the direction of the actuating input from the lock state selector to thereby drive a moving component 138 (e.g., the output arm 418) in a direction opposite that of the actuating input. The reversing lever is another example of a rotary component configured to rotate as the lockset transitions between the first lockset state and the second lockset state.
[0087] With additional reference to
[0088] With the lockset 400 in its unlocked state (
[0089] With additional reference to
[0090] When the control lug 335 is in its unlocking position (
[0091] When the control lug 335 is in its locking position (
[0092] With additional reference to
[0093] When the control lug 335 is in its unlocking position (
[0094] When the control lug 335 is in its unlocking position (
[0095] While the invention has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only the preferred embodiments have been shown and described and that all changes and modifications that come within the spirit of the inventions are desired to be protected.
[0096] It should be understood that while the use of words such as preferable, preferably, preferred or more preferred utilized in the description above indicate that the feature so described may be more desirable, it nonetheless may not be necessary and embodiments lacking the same may be contemplated as within the scope of the invention, the scope being defined by the claims that follow. In reading the claims, it is intended that when words such as a, an, at least one, or at least one portion are used there is no intention to limit the claim to only one item unless specifically stated to the contrary in the claim. When the language at least a portion and/or a portion is used the item can include a portion and/or the entire item unless specifically stated to the contrary.