Striker for use in latch assembly
11187009 · 2021-11-30
Assignee
Inventors
- Matthew Butler Frame (Honeoye Falls, NY, US)
- Brandon Vaughan Hastings (Hemlock, NY, US)
- Richard B. LANGKAMP, JR. (Hemlock, NY, US)
- Ismael Rodriguez (West Chester, PA, US)
Cpc classification
E05B15/0295
FIXED CONSTRUCTIONS
E05B2015/0437
FIXED CONSTRUCTIONS
Y10T292/68
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10T292/702
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
International classification
Abstract
A striker assembly includes a housing, a striker, and a spring. The housing has opposed sidewalls, each of which defines an aperture. The striker extends between the sidewalls of the housing with end portions of the striker positioned within respective apertures defined in the sidewalls. Each of the pair of end portions defines a surface extending in a transverse direction. The spring has a pair of end portions. Each spring end portion contacts the surface of a respective striker end portion. The spring is engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures. At least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture and is biased toward the centered position of the respective aperture.
Claims
1. A striker assembly comprising: a housing having opposed sidewalls, each of the sidewalls defining an aperture; a striker having a pair of end portions, the striker extending between the sidewalls of the housing with each of the pair of end portions positioned within a respective aperture defined in the sidewalls of the housing, each of the pair of end portions defining a surface extending in a transverse direction, where the surface defined in each end portion of the striker at least partially forms a hole that extends diametrically through the respective end portion; and a spring having a pair of end portions, each spring end portion contacting the surface of a respective striker end portion, the spring engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures; wherein at least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture and is biased toward the centered position of the respective aperture.
2. The striker assembly of claim 1, wherein the housing further includes one or more openings sized to receive a fastener.
3. The striker assembly of claim 1, wherein the housing further includes a base extending between the sidewalls of the housing and a protrusion extending from the base thereof.
4. The striker assembly of claim 1, wherein the housing further includes a base and a pair of ridges defining a channel at an area of coupling between each sidewall and the base.
5. The striker assembly of claim 4, wherein the spring includes a body passing through each channel of the housing.
6. The striker assembly of claim 1, wherein each spring end portion extends through the respective hole in each striker end portion.
7. The striker assembly of claim 1, wherein the spring is engaged with the housing and the striker to limit movement of the striker axially through either aperture of the housing.
8. The striker assembly of claim 1, wherein the spring is formed from a single piece of wire including a plurality of bends.
9. The striker assembly of claim 1, wherein at least one of the apertures defined in the sidewalls of the housing includes a slot.
10. The striker assembly of claim 1, wherein each of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture and is biased toward the centered position of the respective aperture.
11. The striker assembly of claim 1, wherein the housing further includes a base extending between the sidewalls of the housing and the sidewalls are offset from a midpoint of the base of the housing.
12. A striker assembly comprising: a housing having opposed sidewalls, each of the sidewalls defining an aperture; a striker having a pair of end portions, the striker extending between the sidewalls of the housing with each of the pair of end portions positioned within a respective aperture defined in the sidewalls of the housing, each of the pair of end portions defining a surface extending in a transverse direction; and a spring having a pair of end portions, each spring end portion contacting the surface of a respective striker end portion, the spring engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures; wherein at least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture and is biased toward the centered position of the respective aperture, wherein the housing further includes one or more openings sized to receive a fastener, and wherein the spring includes a body that at least partially encircles an outer edge of each of the one or more openings in the housing.
13. A striker assembly comprising: a housing having opposed sidewalls, each of the sidewalls defining an aperture; a striker having a pair of end portions, the striker extending between the sidewalls of the housing with each of the pair of end portions positioned within a respective aperture defined in the sidewalls of the housing, each of the pair of end portions defining a surface extending in a transverse direction; and a spring having a pair of end portions, each spring end portion contacting the surface of a respective striker end portion, the spring engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures; wherein at least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture and is biased toward the centered position of the respective aperture, wherein the housing further includes a base extending between the sidewalls of the housing and a protrusion extending from the base thereof, and wherein the spring includes a body portion that extends into a space defined between the protrusion and the base of the housing.
14. The striker assembly of claim 13, wherein the base further includes a cutout in an area beneath the protrusion.
15. A striker assembly comprising: a housing having opposed sidewalls, each of the sidewalls defining an aperture; a striker having a pair of end portions, the striker extending between the sidewalls of the housing with each of the pair of end portions positioned within a respective aperture defined in the sidewalls of the housing, each of the pair of end portions defining a surface extending in a transverse direction; and a spring having a pair of end portions, each spring end portion contacting the surface of a respective striker end portion, the spring engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures; wherein at least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture and is biased toward the centered position of the respective aperture, wherein the spring is formed from a single piece of wire, and wherein the single piece of wire includes a first straight portion extending to a first bend, a second straight portion extending from the first bend to a second bend, a third straight portion extending from the second bend to a third bend, a fourth straight portion extending from the third bend to a fourth bend, and a fifth straight portion extending from the fourth bend.
16. A striker assembly comprising: a housing having opposed sidewalls, each of the sidewalls defining an aperture; a striker having a pair of end portions, the striker extending between the sidewalls of the housing with each of the pair of end portions positioned within a respective aperture defined in the sidewalls of the housing, each of the pair of end portions defining a surface extending in a transverse direction; and a spring having a pair of end portions, each spring end portion contacting the surface of a respective striker end portion, the spring engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures; wherein at least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture and is biased toward the centered position of the respective aperture, wherein the spring is formed from a single piece of wire, and wherein the single piece of wire includes a first straight portion extending to a bump, a second straight portion extending from the bump to a first bend, a third straight portion extending from the first bend to a second bend, a fourth straight portion extending from the second bend to a third bend, a fifth straight portion extending from the third bend to a fourth bend, and a sixth straight portion extending from the fourth bend.
17. A striker assembly comprising: a housing having opposed sidewalls, each of the sidewalls defining an aperture; a striker having a pair of end portions, the striker extending between the sidewalls of the housing with each of the pair of end portions positioned within a respective aperture defined in the sidewalls of the housing, each of the pair of end portions defining a surface extending in a transverse direction; and a spring having a pair of end portions, each spring end portion contacting the surface of a respective striker end portion, the spring engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures; wherein at least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture and is biased toward the centered position of the respective aperture, wherein the spring is formed from a single piece of wire, and wherein the single piece of wire includes a first straight portion extending to a first bump, a second straight portion extending from the bump to a first bend, a third straight portion extending from the first bend to a second bend, a fourth straight portion extending from the second bend to a third bend, a fifth straight portion extending from the third bend to a fourth bend, and a sixth straight portion extending from the fourth bend to a second bump, and a seventh straight portion extending from the second bump.
18. A striker assembly comprising: a housing having a base and a pair of opposed sidewalls extending from the base, the base including one or more openings sized to receive a fastener, each of the sidewalls defining an aperture, the housing further including a pair of ridges defining a channel at an area of coupling between each sidewall and the base; a striker having a pair of end portions, the striker extending between the sidewalls with each of the pair of end portions positioned within a respective aperture, each of the pair of end portions having a hole extending diametrically therethrough; and a single spring having a body and a pair of end portions, each spring end portion extending through the hole in a respective striker end portion, the spring engaged with the housing such that the body of the spring passes through each channel and at least partially encircles an outer edge of each of the openings in the base of the housing, wherein the end portions of the striker are movable transversely within the respective aperture away from a centered position of the respective aperture and are biased toward the centered position of the respective aperture.
19. A latch assembly comprising: a latch having a pawl; a striker assembly positioned to engage the pawl of the latch, the striker assembly including: a housing having opposed sidewalls, each of the sidewalls defining an aperture; a striker having a pair of end portions, the striker extending between the sidewalls of the housing with each of the pair of end portions positioned within a respective aperture defined in the sidewalls of the housing, each of the pair of end portions defining a surface extending in a transverse direction, where the surface defined in each end portion of the striker at least partially forms a hole that extends diametrically through the respective end portion; and a spring having a pair of end portions, each spring end portion contacting the surface of a respective striker end portion, the spring engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures; wherein at least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture upon contact with the pawl of the latch and is biased toward the centered position of the respective aperture upon release of the pawl of the latch.
20. The latch assembly of claim 19, wherein the latch is a rotary latch and the pawl is mounted for rotation between engaged and disengaged orientations.
21. A latchable assembly of components having latched and unlatched conditions, the latchable assembly comprising: components moveable relative to one another between an open position in the unlatched condition and a closed position in the latched condition; a latch having a pawl, the latch being coupled to one of the components; a striker assembly positioned to engage the pawl of the latch, the striker assembly being coupled to an other of the components and including: a housing having opposed sidewalls, each of the sidewalls defining an aperture; a striker having a pair of end portions, the striker extending between the sidewalls of the housing with each of the pair of end portions positioned within a respective aperture defined in the sidewalls of the housing, each of the pair of end portions defining a surface extending in a transverse direction, where the surface defined in each end portion of the striker at least partially forms a hole that extends diametrically through the respective end portion; and a spring having a pair of end portions, each spring end portion contacting the surface of a respective striker end portion, the spring engaged with the housing to bias the end portions of the striker toward a centered position of the respective apertures; wherein at least one of the end portions of the striker is movable transversely within the respective aperture away from the centered position of the respective aperture upon contact with the pawl of the latch as the components are moved from the open position to the closed position; and wherein the at least one end portion of the striker is biased toward the centered position of the respective aperture upon release of the pawl of the latch as the components are moved from the closed position to the open position.
22. The latchable assembly of claim 21, wherein one of the components is fixed in position and an other one of the components is movable relative to the fixed component.
23. The latchable assembly of claim 22, wherein the fixed component includes a frame portion and the movable component includes a door portion.
24. The latchable assembly of claim 23, wherein the latch is coupled to the frame portion and the striker is coupled to the door portion.
25. The latchable assembly of claim 23, wherein the latch is coupled to the door portion and the striker is coupled to the frame portion.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The invention is best understood from the following detailed description when read in connection with the accompanying drawings. When a plurality of similar elements are present, a single reference numeral may be assigned to the plurality of similar elements with a small letter designation referring to specific elements. When referring to the elements collectively or to a non-specific one or more of the elements, the small letter designation may be dropped. It is emphasized that, according to common practice, the various features of the drawings are not necessarily to scale. On the contrary, the dimensions of the various features may be arbitrarily expanded or reduced for clarity. Included in the drawings are the following figures:
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DETAILED DESCRIPTION OF THE INVENTION
(15) Although the invention is illustrated and described herein with reference to specific embodiments, the invention is not intended to be limited to the details shown. Rather, various modifications may be made in the details within the scope and range of equivalents of the claims and without departing from the invention.
(16) The exemplary embodiments described below relate to strikers for use in latch assemblies. As used herein, the term “floating” refers to a striker which is not rigidly held in place at either end, but is capable of limited movement in engagement with the accompanying latch assembly. Suitable latches employing the disclosed strikers will be known to one of ordinary skill in the art from the description herein. By way of example, latch assemblies that may employ the disclosed strikers are described in U.S. Pat. No. 7,726,707, entitled “ROTARY PAWL LATCH,” issued Jun. 1, 2010, the contents of which are incorporated herein by reference in their entirety.
(17) Referring now to the drawings,
(18) Housing 110 provides a base for striker assembly 100. As shown in
(19) Each sidewall 114 of housing 110 defines a respective aperture 118. Apertures 118 have at least one dimension that is sized to be larger than a dimension of the striker 130; for example, apertures 118 are shaped in the form of a slot having length dimension that is larger than a diameter of striker 130 to enable lateral movement of striker 130 within apertures 118 when striker 130 is received within apertures 118.
(20) Housing 110 may further include a pair of ridges 120 at an area of coupling between base 112 and each sidewall 114. Each pair of ridges 120 defines a channel in which spring 150 may be positioned, as described in greater detail below.
(21) Striker 130 provides a surface for engaging with the corresponding latch assembly. As shown in
(22) While holes 136 are illustrated as extending diametrically through respective end portions 134, it will be understood that each hole 136 may extend only partly through striker 130, or may extend obliquely through striker 130. Alternatively, surfaces 138 may be formed from cutouts, notches, steps, or other structures in each end portion 134 of striker 130.
(23) When striker assembly 100 is assembled, as shown in
(24) Spring 150 biases striker 130 relative to housing 110. As shown in
(25) In the exemplary embodiment of
(26) When striker assembly 100 is assembled, as shown in
(27) Additionally, when striker assembly 100 is assembled, body 152 of spring 150 is coupled with housing 110. In an exemplary embodiment, body 152 of spring 150 passes through each channel defined by the pairs of ridges 120 in the area of coupling of sidewalls 114 to base 112 of housing 110. Further, body 152 of spring 150 at least partially encircles outer edges of the openings 116 in housing 110, in order to secure spring 150 to housing 110 when fasteners are in place. In the embodiment of
(28) As set forth above, spring 150 biases striker 130 relative to housing 110. Spring 150 functions to maintain a predetermined position of striker 130 relative to housing 110, while allowing limited movement of striker 130 relative to housing 110. In an exemplary embodiment, spring 150 is engaged with housing 110 to bias end portions 134 of striker 130 toward a centered position of end portions 134 within apertures 118, as shown in
(29) Additionally, engagement of spring 150 with surfaces 138 of striker 130 limits or prevents movements of striker 130 axially through either aperture 118 out of housing 110. In this way, engagement of spring 150 with surfaces 138 of striker 130 maintains both a traverse and axial position of striker 130 relative to housing 110.
(30) Striker assembly 100 preferably includes only a single spring 150. In embodiments described herein, a single spring is used to perform the function of biasing striker 130 in a transverse direction relative to housing 110 and preventing axial movement of striker 130 relative to housing 110. The use of a single spring to perform these functions may achieve a number of advantages over convention designs, including a reduction in components, a simpler design, manufacture, and assembly. Likewise, the use of a design in which spring 150 engages with striker 130 by insertion into holes 136 enables striker assembly to be simply assembled by hand without fixtures.
(31) Spring 150 allows some transverse movement of striker 130, and also prevents striker 130 from inadvertent disengagement from housing 110. Accordingly, spring 150 performs multiple functions. In this way, spring 150 renders additional components (such as a leaf spring for example) optional by allowing some transverse movement of striker 130. Also, spring 150 renders additional components (such as shear pins or cotter pins or e-clips) optional by preventing striker 130 from inadvertent disengagement from housing 110.
(32) When a single spring 150 is used as in the preferred configuration, a single wire form can be used to center a striker pin in a housing or bracket. This configuration also facilitates the manufacture of a smaller striker design. Additionally, the preferred configuration of the striker assembly makes it possible to use only three main components (a spring, a support or housing, and a striker), thus reducing the inventory and assembly effort and cost as compared to striker assemblies having additional components.
(33) An exemplary operation of a latch assembly employing striker assembly 100 is described below with respect to
(34) In
(35) In
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(37) Housing 310 provides a base for striker assembly 300. As shown in
(38) Base 312 of housing 310 includes one or more openings 316. Each sidewall 314 of housing 310 defines a respective aperture 318. Apertures 318 have at least one dimension that is sized to be larger than a dimension of the striker 330. Housing 310 may further include a pair of ridges 320 at an area of coupling between base 312 and each sidewall 314.
(39) When striker assembly 300 is assembled, as shown in
(40) Spring 350 biases striker 330 relative to housing 310. As shown in
(41) In the exemplary embodiment of
(42) When striker assembly 300 is assembled, body 352 of spring 350 is coupled with housing 310. In an exemplary embodiment, body 352 of spring 350 passes through each channel defined by the pairs of ridges 320 in the area of coupling of sidewalls 314 to base 312 of housing 310. Further, body 352 of spring 350 at least partially encircles outer edges of the openings 316 in housing 310, in order to secure spring 350 to housing 310 when fasteners are in place. In the embodiment of
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(44) Housing 410 provides a base for striker assembly 400. As shown in
(45) When striker assembly 400 is assembled, as shown in
(46) Spring 450 biases striker 430 relative to housing 410. As shown in
(47) In the exemplary embodiment of
(48) When striker assembly 400 is assembled, body 452 of spring 450 is coupled with housing 410. In an exemplary embodiment, body 452 of spring 450 passes through each channel defined by the pairs of ridges 420 in the area of coupling of sidewalls 414 to base 412 of housing 410. Further, body 452 of spring 450 extends into a space defined beneath the lower surface of protrusion 416, i.e., between protrusion 416 and base 412 of housing 410, in order to secure spring 450 to housing 410.
(49) A floating striker according to aspects of this invention accommodates or compensates for any misalignment of a latch, such as a rotary latch, and a striker. As described previously, a spring formed according to aspects of this invention allows the striker to move and/or adjust to find the correct home position in the latch assembly. This can provide an automatic self-adjusting feature for any latch system. This can be of significant benefit for an end user as a latch assembly wears in the field.
(50) This invention also provides a latchable assembly of components having latched and unlatched conditions. The latchable assembly includes components moveable relative to one another between an open position in the unlatched condition and a closed position in the latched condition. One of the components may be fixed in position and another one of the components may be movable relative to the fixed component. For example, the fixed component can include a frame portion and the movable component can include a door portion. For illustration, the frame portion can be part of a vehicle body and the door portion can be part of a vehicle door. In this example, the latch can be coupled to the door portion or to the frame portion, and the striker can be coupled to the other of the frame portion or the door portion. U.S. Pat. Nos. 7,726,707 and 8,496,275, which are incorporated herein by reference in their entireties, provide additional examples of components with which a striker assembly, latch assembly or latchable assembly of this invention can be used.
(51) While preferred embodiments of the invention have been shown and described herein, it will be understood that such embodiments are provided by way of example only. Numerous variations, changes and substitutions will occur to those skilled in the art without departing from the spirit of the invention. Accordingly, it is intended that the appended claims cover all such variations as fall within the spirit and scope of the invention.