Actuating device for lock device, and lock device

Abstract

An actuating device (12a, 12b, 12c) for a lock device (10) comprising a stationary structure (90) having a credential receiver (40) for receiving a credential input (42) from a user; an actuating element (16) rotatable about an actuation axis (18) relative to the stationary structure by direct manipulation by the user, where the stationary structure is arranged at least partly inside the actuating element; a locking member (24) movable between a locked position (106) and an unlocked position (no); and an electromechanical transfer device (y2a-y2c) arranged, based on the credential input, to adopt a disabled state (104), in which the locking member cannot be moved from the locked position to the unlocked position by rotation of the actuating element, and an enabled state (108) in which the locking member can be moved from the locked position to the unlocked position by rotation of the actuating element; wherein the credential receiver is at least partly arranged radially inside the actuating element with respect to the actuation axis.

Claims

1. An actuating device for a lock device, the actuating device comprising: a stationary structure having a credential receiver for receiving a credential input from a user; an actuating element rotatable about an actuation axis relative to the stationary structure by direct manipulation by the user, where the stationary structure is arranged at least partly inside the actuating element; a locking member movable between a locked position and an unlocked position; and an electromechanical transfer device arranged, based on the credential input, to adopt a disabled state in which the locking member cannot be moved from the locked position to the unlocked position by rotation of the actuating element, and an enabled state in which the locking member can be moved from the locked position to the unlocked position by rotation of the actuating element; wherein the credential receiver is at least partly arranged radially inside the actuating element with respect to the actuation axis; wherein the actuating device further comprises a transfer wheel rotatable about a transfer axis parallel with the actuation axis, wherein the transfer wheel is positioned radially inside the actuating element with respect to the actuation axis, wherein the transfer wheel is arranged to drive an input element of the transfer device, and wherein the actuating element comprises an internal profile engaging the transfer wheel; and wherein the actuating device further comprises a second wheel rotatable about a second axis and a third wheel rotatable about a third axis, wherein each of the second axis and the third axis is parallel with the actuation axis, wherein each of the second wheel and the third wheel is positioned radially inside the actuating element with respect to the actuation axis, and wherein the internal profile engages each of the second wheel and the third wheel.

2. The actuating device according to claim 1, wherein the input element is rotatable, and wherein the transfer wheel is fixed to, or integrally formed with, the input element.

3. The actuating device according to claim 1, wherein one, several, or all of the transfer wheel, the second wheel, and the third wheel is a gear wheel, and wherein the internal profile comprises an internal gear meshing with the one or more gear wheels.

4. The actuating device according to claim 1, wherein the actuating element comprises a knob.

5. The actuating device according to claim 1, wherein the actuating element comprises a front end, and wherein the credential receiver is substantially aligned with the front end.

6. The actuating device according to claim 1, further comprising a control system configured to issue an authorization signal to the transfer device upon presentation of a valid credential input by the user, and wherein the control system is arranged in the stationary structure.

7. The actuating device according to claim 1, further comprising a power source.

8. The actuating device according to claim 7, wherein the transfer device is arranged to be electrically powered by the power source.

9. The actuating device according to claim 7, wherein the power source is arranged in the stationary structure.

10. The actuating device according to claim 7, wherein the power source comprises an electric generator arranged to be driven by rotation of the actuating element to thereby generate electric energy.

11. The actuating device according to claim 10, wherein the input element is rotatable, wherein the transfer wheel is fixed to, or integrally formed with, the input element, and wherein the generator is arranged to be driven by rotation of the transfer wheel.

12. The actuating device according to claim 10, wherein the generator comprises a generator axis, and wherein the generator axis is angled 30 degrees to 150 degrees to the actuation axis.

13. A lock device comprising an actuating device according to claim 1.

14. The actuating device according to claim 8, wherein the power source is arranged in the stationary structure.

15. The actuating device according to claim 8, wherein the power source comprises an electric generator arranged to be driven by rotation of the actuating element to thereby generate electric energy.

16. The actuating device according to claim 9, wherein the power source comprises an electric generator arranged to be driven by rotation of the actuating element to thereby generate electric energy.

17. The actuating device according to claim 11, wherein the generator comprises a generator axis, and wherein the generator axis is angled 30 degrees to 150 degrees to the actuation axis.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further details, advantages and aspects of the present disclosure will become apparent from the following description taken in conjunction with the drawings, wherein:

(2) FIG. 1: schematically represents a side view of a lock device comprising one example of an actuating device;

(3) FIG. 2a: schematically represents a front perspective view of the actuating device;

(4) FIG. 2b: schematically represents a rear perspective view of the actuating device;

(5) FIG. 3: schematically represents a partial front perspective view of the actuating device;

(6) FIG. 4: schematically represents a further partial front perspective view of the actuating device;

(7) FIG. 5: schematically represents a cross-sectional side view of the actuating device;

(8) FIG. 6: schematically represents a side view of a transfer device of the actuating device;

(9) FIG. 7: schematically represents a side view of the actuating device;

(10) FIG. 8: schematically represents a side view of a further example of an actuating device;

(11) FIG. 9a: schematically represents a side view of a further example of a transfer device in a disabled state;

(12) FIG. 9b: schematically represents a side view of the transfer device in FIG. 9a in an enabled state;

(13) FIG. 9c: schematically represents a side view of the transfer device in FIGS. 9a and 9b when a locking member is rotated by an input element;

(14) FIG. 10a: schematically represents a side view of a further example of a transfer device in a disabled state;

(15) FIG. 10b: schematically represents a side view of the transfer device in FIG. 10a in an enabled state;

(16) FIG. 10c: schematically represents a side view of the transfer device in FIGS. 10a and 10b when a locking member is rotated by an input element;

(17) FIG. 11a: schematically represents a front perspective view of a further example of an actuating device;

(18) FIG. 11b: schematically represents a partial front perspective view of the actuating device in FIG. 11a; and

(19) FIG. 11c: schematically represents a side view of the actuating device in FIGS. 11a and 11b.

DETAILED DESCRIPTION

(20) In the following, an actuating device comprising a manually rotatable actuating element, and a lock device comprising an actuating device, will be described. The same or similar reference numerals will be used to denote the same or similar structural features.

(21) FIG. 1 schematically represents a side view of a lock device 10. The lock device 10 comprises an actuating device 12a. The lock device 10 of this example further comprises a lock case 14.

(22) The actuating device 12a comprises an actuating element 16. The actuating element 16 is rotatable about an actuation axis 18. A user may for example grab and rotate the actuating element 16.

(23) The actuating element 16 of this example comprises a hollow cylindrical knob 20. The actuating element 16 further comprises a front end 22.

(24) The actuating device 12a further comprises a locking member 24. The locking member 24 of this example is rotatable between a locked position and an unlocked position.

(25) The actuating device 12a of this example further comprises a lock cylinder 26. The locking member 24 here protrudes rearwardly from the lock cylinder 26.

(26) The actuating device 12a of this example further comprises a rosette 28. The lock cylinder 26 and the rosette 28 for part of one example of a stationary structure of the actuating device 12a.

(27) The lock case 14 of this example comprises a spindle 30, an arm 32, a dead bolt 34 and a latch bolt 36. The lock case 14 is provided inside a door 38. The rosette 28 mates with an outer surface of the door 38. The stationary structure is fixed to the door 38. Thus, the stationary structure is stationary with respect to the door 38 but may move in space as the door 38 moves.

(28) The locking member 24 provides an interface to the lock case 14. Rotation of the locking member 24 from the locked position to the unlocked position causes the spindle 30 to rotate and the dead bolt 34 to be retracted by means of the arm 32. In this way, the dead bolt 34 can be retracted from a strike plate in a door frame (not shown) and the door 38 can be opened.

(29) FIG. 2a schematically represents a front perspective view of the actuating device 12a, and FIG. 2b schematically represents a rear perspective view of the actuating device 12a. With collective reference to FIGS. 2a and 2b, the actuating device 12a further comprises a credential receiver 40. The user can provide a credential input 42 to the credential receiver 40. The credential receiver 40 of this example is a keypad and the credential input 42 of this example is a code. Many alternative types of credential receivers 40 are known as such.

(30) The credential receiver 40 is stationary and forms part of the stationary structure of the actuating device 12a. The actuating element 16 is rotatable relative to the stationary credential receiver 40.

(31) The credential receiver 40 is in this example arranged entirely radially inside the knob 20 with respect to the actuation axis 18. Furthermore, as shown in FIG. 2a, a front side of the credential receiver 40 is flush with the front end 22 of the knob 20 in this example.

(32) FIGS. 2a and 2b further show that the actuating device 12a of this example comprises a plurality of screws 44. The screws 44 pass through the lock cylinder 26. The screws 44 are used to secure the credential receiver 40 and other static components inside knob 20 to the lock cylinder 26.

(33) FIG. 3 schematically represents a partial front perspective view of the actuating device 12a. As shown in FIG. 3, the actuating device 12a further comprises a power source 46. The power source 46 forms part of the stationary structure of the actuating device 12a and is arranged inside the knob 20. The power source 46 of this example comprises a an electric generator 48, a capacitor 50 and a battery 52.

(34) The generator 48 comprises a stator and a rotor rotatable relative to the stator about a generator axis 54. In this example, the generator axis 54 is parallel with, and offset from, the actuation axis 18.

(35) The actuating device 12a further comprises a ring gear 56. The ring gear 56 is fixed to the knob 20 and constitutes a part of the actuating element 16. The ring gear 56 is concentric with the actuation axis 18.

(36) The ring gear 56 comprises a toothed internal profile 58 facing towards the actuation axis 18. The internal profile 58 is thus here exemplified as an internal gear. An inner diameter of the ring gear 56 (within top lands of the toothed internal profile 58) is larger than an outer diameter of the lock cylinder 26.

(37) The actuating device 12a further comprises a transfer wheel 60. The transfer wheel 60 may alternatively be referred to as a first wheel. The transfer wheel 60 is arranged inside the ring gear 56. The transfer wheel 60 is here a spur gear in meshing engagement with the internal profile 58.

(38) The actuating device 12a of this example further comprises a second wheel 62 and a third wheel 64. Each of the second wheel 62 and the third wheel 64 is arranged inside the ring gear 56. Moreover, each of the second wheel 62 and the third wheel 64 is here a spur gear in meshing engagement with the internal profile 58. The transfer wheel 60, the second wheel 62 and the third wheel 64 provide the only support for the actuating element 16 in radial directions with respect to the actuation axis 18.

(39) FIG. 4 schematically represents a further partial front perspective view of the actuating device 12a. As shown in FIG. 4, the transfer wheel 60 is rotatable about a transfer axis 66. The transfer axis 66 may alternatively be referred to as a first axis. The transfer axis 66 is parallel with, and offset from, the actuation axis 18.

(40) The second wheel 62 is rotatable about a second axis 68 and the third wheel 64 is rotatable about a third axis 70. Each of the second axis 68 and the third axis 70 is parallel with, and offset from, the actuation axis 18. The second axis 68 is concentric with the generator axis 54.

(41) In this example, the actuating element 16 can rotate endlessly around the actuation axis 18. When the actuating element 16 is rotated, the transfer wheel 60, the second wheel 62 and the third wheel 64 are driven to rotate about the transfer axis 66, the second axis 68 and the third axis 70, respectively. Rotation of the second wheel 62 drives the generator 48, either directly or via a speed increasing transmission, to harvest electric energy.

(42) A diameter of the transfer wheel 60 is here approximately 50% of a diameter of the internal profile 58. A diameter of the second wheel 62 is here approximately 35% of the diameter of the internal profile 58. A diameter of the third wheel 64 is here approximately 25% of the diameter of the internal profile 58. The transfer wheel 60 is thus larger than the second wheel 62. Moreover, the second wheel 62 is larger than the third wheel 64. Each wheel 60, 62 and 64 may have a thickness (i.e. a dimension along the actuation axis 18) of 1 mm to 3 mm, such as 2 mm.

(43) The relatively small size of the second wheel 62 contributes to a higher rotational speed of the generator 48. The relatively large size of the transfer wheel 60 contributes to a relatively low rotational speed thereof. The function of the third wheel 64 is here to support the actuating element 16 and to center the actuating element 16 with respect to the actuation axis 18.

(44) As shown in FIG. 4, a continuous space is formed inside the internal profile 58 and between the wheels 60, 62 and 64. This space is used for the stationary structure of the actuating device 12a. Some or all of the screws 44 and/or electric cables can pass through this space without interfering with the ring gear 56 or the wheels 60, 62 and 64.

(45) FIG. 5 schematically represents a cross-sectional side view of the actuating device 12a. As shown in FIG. 5, the ring gear 56 is fixed to a rear end (to the left in FIG. 5) of the knob 20. A diameter of the internal profile 58 is approximately 80% of an external diameter of the knob 20.

(46) The actuating device 12a further comprises an electromechanical transfer device 72a. The transfer device 72a is configured to switch from a disabled state to an enabled state based on the credential input 42 to the credential receiver 40. The transfer device 72a is functionally and geometrically arranged between the transfer wheel 60 and the locking member 24. The transfer device 72a is here arranged in the lock cylinder 26.

(47) In the disabled state of the transfer device 72a, the locking member 24 can not be rotated from the locked position to the unlocked position by means of rotation of the actuating element 16. In this example, the actuating element 16 can however be rotated for energy harvesting when the transfer device 72a adopts the disabled state. In the enabled state of the transfer device 72a, the locking member 24 can be rotated from the locked position to the unlocked position by means of rotation of the actuating element 16.

(48) The transfer device 72a of this example comprises an input element 74, an output element 76. The input element 74 is here fixed to the transfer wheel 60 and the output element 76 is here integrally formed with the locking member 24.

(49) The transfer device 72a further comprises an electromechanical actuator 78. By driving the actuator 78, the transfer device 72a can be switched between the disabled state and the enabled state. The transfer device 72a of this example comprises a coupling shaft 80 having a collar 82.

(50) The actuating device 12a further comprises a control system 84, here exemplified as a PCB (printed circuit board) lying in a plane transverse to the actuation axis 18. The control system 84 is arranged inside the actuating element 16, between the ring gear 56 and the generator 48 along the actuation axis 18.

(51) FIG. 6 schematically represents a side view of the transfer device 72a. The coupling shaft 80 has a polygonal profile. The coupling shaft 80 is always received in the input element 74. In the disabled state, the coupling shaft 80 does not engage in a corresponding polygonal opening of the output element 76. Rotation of the input element 74 is thereby not transmitted to a rotation of the output element 76 and the locking member 24. By driving the actuator 78, the coupling shaft 80 can be moved linearly (to the right in FIG. 6) into the opening of the output element 76. When the coupling shaft 80 enters this opening, rotation of the input element 74 is transmitted by the coupling shaft 80 to a rotation of the output element 76 and the locking member 24.

(52) In this specific example, the transfer device 72a comprises a torsion spring 86 and a nut 88. When the actuator 78 drives the nut 88 linearly to the right in FIG. 6, the torsion spring 86 exerts a force on the collar 82. In case the coupling shaft 80 is not aligned with the opening in the output element 76, the actuator 78 can be stopped and the torsion spring 86 continues to exert a force on the coupling shaft 80 to the right. When the input element 74 is rotated such that the coupling shaft 80 becomes aligned with the opening in the output element 76, the torsion spring 86 forces the coupling shaft 80 into the opening. The transfer device 72a thereby adopts the enabled state.

(53) FIG. 7 schematically represents a side view of the actuating device 12a. In FIG. 7, the stationary structure 90 of the actuating device 12a is shown as a volume within dashed lines. As shown, the stationary structure 90 is arranged partly inside the actuating element 16. The credential receiver 40 is here arranged entirely radially inside the knob 20 with respect to the actuation axis 18. Moreover, an entire length of the credential receiver 40 is here arranged radially inside the knob 20 with respect to the actuation axis 18.

(54) When the actuating element 16 is rotated by the user, the actuating element 16 and the wheels 60, 62 and 64 rotate relative to the stationary structure 90. Rotation of the second wheel 62 drives the generator 48 to harvest electric energy. During rotation of the actuating element 16, the credential receiver 40 remains static. This provides an improved user experience and a more consistent interaction between the user and the credential receiver 40.

(55) The control system 84 comprises a data processing device 92 and a memory 94. The memory 94 has a computer program thereon. The computer program comprises program code which, when executed by the data processing device 92 causes the data processing device 92 to perform, or command performance of, various steps as described herein.

(56) The actuating device 12a comprises electrical conductors 96 connecting the control system 84 to each of the power source 46, the credential receiver 40 and the actuator 78, and an electrical conductor 96 between the power source 46 and the credential receiver 40. The power source 46 electrically powers the control system 84 and the credential receiver 40. Moreover, the power source 46 here electrically powers the actuator 78 via the control system 84.

(57) As shown in FIG. 7, the credential receiver 40 is configured to send an access signal 98 to the control system 84 in response to the credential input 42. The control system 84 is configured to evaluate the access signal 98, i.e. to determine whether the credential input 42 is valid or invalid. In case the credential input 42 is valid, the control system 84 sends an authorization signal 100 to the actuator 78 to thereby command the transfer device 72a to switch from the disabled state to the enabled state. In case the credential input 42 is invalid, the control system 84 does not issue the authorization signal 100.

(58) FIG. 8 schematically represents a side view of a further example of an actuating device 12b. Mainly differences with respect to the actuating device 12a will be described. The actuating device 12b does not comprise any electric generator. Instead, the actuating device 12b is electrically powered by an external power source 46, such as a mains supply. In the actuating device 12b, both the second wheel 62 and the third wheel 64 are support wheels for the actuating element 16. When no power source 46 is provided in the stationary structure 90 inside the actuating element 16, the actuating element 16 can be made even more compact, i.e. shorter along the actuation axis 18. As an alternative to the power source 46 outside the actuating device 12b, a power source 46 comprising a battery (but no generator) may be provided in the stationary structure 90 inside the actuating element 16.

(59) Since the actuating element 16 of the actuating device 12b does not drive an electric generator, the actuating element 16 does not have to be rotated endlessly around the actuation axis 18. A rotation range of for example 90 degrees about the actuation axis 18 can be sufficient. In this way, more space inside the ring gear 56 can be used for the stationary structure 90.

(60) Furthermore, when the actuating element 16 of the actuating device 12b does not drive an electric generator, the actuating element 16 can alternatively be fixed to the input element 74 of the transfer device 72a. In this way, each of the wheels 60, 62 and 64 can be omitted.

(61) FIG. 9a schematically represents a side view of a further example of a transfer device 72b. Similarly to the transfer device 72a, the transfer device 72b is a coupling device. The transfer device 72b comprises a clutch 102 controlled by the actuator 78. In FIG. 9a, the clutch 102 is controlled by the actuator 78 to be open. The transfer device 72b thereby adopts a disabled state 104. In the disabled state 104, rotation of the input element 74 is not transferred to a rotation of the locking member 24. The locking member 24 thereby remains in a locked position 106.

(62) FIG. 9b schematically represents a side view of the transfer device 72b. In FIG. 9b, the clutch 102 is controlled by the actuator 78 to be closed, e.g. in response to the authorization signal 100. The transfer device 72b thereby adopts an enabled state 108.

(63) FIG. 9c schematically represents a side view of the transfer device 72b. As shown in FIG. 9c, the locking member 24 can be rotated from the locked position 106 to an unlocked position 110 by rotation of the input element 74 when the transfer device 72b adopts the enabled state 108.

(64) FIG. 10a schematically represents a side view of a further example of a transfer device 72c. Mainly differences with respect to the transfer device 72b will be described. The transfer device 72c is a blocking device. Moreover, the input element 74 is fixed to the locking member 24, here integrally formed with the locking member 24.

(65) The transfer device 72c comprises a blocking member 112 controlled by the actuator 78. In FIG. 10a, the blocking member 112 is controlled by the actuator 78 to engage in a recess in the input element 74. The blocking member 112 blocks rotation of the input element 74 and the locking member 24. The transfer device 72c thereby adopts the disabled state 104. In case the actuating device 12a and 12b comprises the transfer device 72c, the actuating element 16 cannot be rotated when the transfer device 72c adopts the disabled state 104.

(66) FIG. 10b schematically represents a side view of the transfer device 72c. In FIG. 10b, the blocking member 112 is controlled by the actuator 78 to be retracted from the recess in the input element 74, e.g. in response to the authorization signal 100. The transfer device 72c thereby adopts the enabled state 108.

(67) FIG. 10c schematically represents a side view of the transfer device 72c. As shown in FIG. 10c, the locking member 24 can be rotated from the locked position 106 to the unlocked position 110 by rotation of the input element 74 when the transfer device 72c adopts the enabled state 108.

(68) FIG. 11a schematically represents a front perspective view of a further example of an actuating device 12c, FIG. 11b schematically represents a partial front perspective view of the actuating device 12c, and FIG. 11c schematically represents a side view of the actuating device 12c. With collective reference to FIGS. 11a-11c, mainly differences with respect to the actuating device 12a will be described. The actuating device 12c of this example comprises the transfer device 72c. The actuating device 12c further comprises the transfer wheel 60, but not the second wheel 62 and the third wheel 64. The generator 48 is here driven by the transfer wheel 60. The stationary structure 90 can thereby make use of more space inside the ring gear 56. Alternatively, or in addition, the ring gear 56 (and the knob 20) can be made smaller in a plane transverse to the actuation axis 18.

(69) The generator axis 54 is here oriented perpendicular to the actuation axis 18. This enables the actuating device 12c to be made even more compact, i.e. shorter along the actuation axis 18.

(70) The actuating device 12c comprises a first bevel gear 114 and a second bevel gear 116 in meshing engagement with the first bevel gear 114. The first bevel gear 114 is driven by the transfer wheel 60. Thus, in the actuating device 12c, the transfer wheel 60 drives both the input element 74 and the generator 48.

(71) The first bevel gear 114 is here concentric with the transfer wheel 60. The second bevel gear 116 is concentric with the generator axis 54. A transmission (not shown) may be arranged between the transfer wheel 60 and the first bevel gear 114. Alternatively, the first bevel gear 114 may be fixed to the transfer wheel 60.

(72) The first bevel gear 114 lies in a plane perpendicular to the actuation axis 18 and the second bevel gear 116 lies in a plane parallel with the actuation axis 18. The first bevel gear 114 is larger than the second bevel gear 116. The first bevel gear 114 and the second bevel gear 116 thereby form a speed increasing transmission between the transfer wheel 60 and the generator 48.

(73) As an alternative example, the actuating device 12c may comprise the second wheel 62. The first bevel gear 114 may then be driven by the second wheel 62. As a further alternative example, the actuating device 12c comprises the second wheel 62 and the third wheel 64 functioning as support wheels.

(74) While the present disclosure has been described with reference to exemplary embodiments, it will be appreciated that the present invention is not limited to what has been described above. For example, it will be appreciated that the dimensions of the parts may be varied as needed. Accordingly, it is intended that the present invention may be limited only by the scope of the claims appended hereto.