Recliner mechanism having bracket
11607976 · 2023-03-21
Assignee
Inventors
- Ralph L. SCHMITZ (Clinton Township, MI, US)
- Sapan M. POPTANI (Northville, MI, US)
- Christopher J. RYAN (Fraser, MI, US)
Cpc classification
B60N2/42709
PERFORMING OPERATIONS; TRANSPORTING
International classification
Abstract
A recliner mechanism includes a housing plate and a recliner heart. The housing plate includes a plate body. The recliner heart is mounted to the housing plate and operable in an unlocked state permitting relative rotation between a seat back and a seat bottom, and a locked state preventing relative rotation between the seatback and the seat bottom. The housing plate includes a fore end proximate a front of the seat bottom and an aft end opposing the fore end and proximate a rear end of the seat bottom. The plate body includes a protrusion extending outwardly therefrom at or near the aft end.
Claims
1. A recliner mechanism comprising: a housing plate including a planar plate body; and a recliner heart mounted to the housing plate and operable in an unlocked state permitting relative rotation between a seatback and a seat bottom, and a locked state preventing relative rotation between the seatback and the seat bottom, wherein the housing plate includes a fore end proximate a front of the seat bottom and an aft end opposing the fore end and proximate a rear end of the seat bottom, the planar plate body includes a second protrusion extending outwardly therefrom at or near the aft end, wherein the planar plate body includes a first protrusion extending outwardly therefrom at or near the fore end of the housing plate, and wherein when the first and second protrusions are in non-deformed states prior to absorbing a force associated with a vehicle impact event, a first distance between a surface of the planar plate body and a peak of the first protrusion is different from a second distance between the surface of the planar plate body and a second peak of the second protrusion.
2. The recliner mechanism of claim 1, wherein the first and second protrusions are allowed to absorb energy and deform upon an impact event, thereby reducing energy transferred to the recliner heart.
3. The recliner mechanism of claim 1, wherein the first and second protrusions are allowed to absorb energy and stretch upon an impact event, thereby reducing energy transferred to the recliner heart.
4. The recliner mechanism of claim 1, wherein the first and second protrusions are allowed to absorb energy and collapse upon an impact event, thereby reducing energy transferred to the recliner heart.
5. The recliner mechanism of claim 1, wherein the housing plate includes a flange extending from and at least partially around the planar plate body, and wherein the flange and the first and second protrusions extend in the same direction.
6. The recliner mechanism of claim 1, wherein the planar plate body defines an opening extending therethrough such that an end of the second protrusion is spaced apart from the planar plate body.
7. The recliner mechanism of claim 1, wherein the second protrusion is an elongated protrusion extending from the aft end of the housing plate toward the fore end of the housing plate.
8. The recliner mechanism of claim 1, wherein the second protrusion has a first end positioned at or near the aft end and a second end positioned closer to the fore end than the aft end, and wherein the second protrusion is curved along a length thereof from the first end to the second end.
9. The recliner mechanism of claim 1, wherein the first protrusion partially defines an opening in the housing plate.
10. The recliner mechanism of claim 9, wherein the first protrusion is integrally formed with the housing plate and is formed from the same sheet metal as the housing plate, and wherein the first protrusion has a V-shaped or U-shaped cross section.
11. The recliner mechanism of claim 6, wherein a curved slot is formed in the planar body of housing plate, and wherein the curved slot is disposed between the first and second protrusions and is partially defined by the first protrusion.
12. A recliner mechanism comprising: a housing plate including a planar plate body; and a recliner heart mounted to the housing plate and operable in an unlocked state permitting relative rotation between a seatback and a seat bottom, and a locked state preventing relative rotation between the seatback and the seat bottom, wherein the housing plate includes a fore end proximate a front of the seat bottom and an aft end opposing the fore end and proximate a rear end of the seat bottom, the planar plate body includes a first protrusion extending outwardly therefrom at or near the fore end and a second protrusion extending outwardly therefrom at or near the aft end, wherein a curved slot is formed in the planar body of the housing plate, and wherein the curved slot is disposed between the protrusions and is partially defined by the first protrusion, and wherein the second protrusion partially defines an opening in the housing plate, and wherein the opening is partially defined by the planar body of the housing plate.
13. The recliner mechanism of claim 12, wherein the housing plate includes a flange extending from and at least partially around the planar plate body, and wherein the flange and the first and second protrusions extend in the same direction.
14. The recliner mechanism of claim 13, wherein the second protrusion is an elongated protrusion extending from the aft end of the housing plate toward the fore end of the housing plate.
15. The recliner mechanism of claim 14, wherein when the first and second protrusions are in non-deformed states prior to absorbing a force associated with a vehicle impact event, a first distance between a surface of the planar plate body and a peak of the first protrusion is different from a second distance between the surface of the planar plate body and a second peak of the second protrusion.
16. The recliner mechanism of claim 15, wherein the second protrusion is curved along a length thereof extending between the aft and fore ends.
17. The recliner mechanism of claim 16, wherein the first and second protrusions are integrally formed with the housing plate and are formed from the same sheet metal as the housing plate, and wherein the first and second protrusions have a V-shaped or U-shaped cross section.
Description
DRAWINGS
(1) The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
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(20) Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings.
DETAILED DESCRIPTION
(21) Example embodiments will now be described more fully with reference to the accompanying drawings.
(22) Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
(23) The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “comprising,” “including,” and “having,” are inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It is also to be understood that additional or alternative steps may be employed.
(24) When an element or layer is referred to as being “on,” “engaged to,” “connected to,” or “coupled to” another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly engaged to,” “directly connected to,” or “directly coupled to” another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
(25) Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
(26) Spatially relative terms, such as “inner,” “outer,” “beneath,” “below,” “lower,” “above,” “upper,” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
(27) As shown in
(28) The first and second recliner mechanisms 18, 20 may be operable in a locked state preventing relative rotation between the seatback frame 12 and the seat bottom frame 14 and an unlocked state permitting relative rotation between the seatback frame 12 and the seat bottom frame 14 among the upright position, the rearward reclined position and the forward dump position. As shown in
(29) As shown in
(30) The plate body 36 may also include a first protrusion or gusset 44 and a second protrusion or gusset 46. The protrusions 44, 46 may be integrally formed with the plate body 36 and may be formed from the same sheet metal as the rest of the first bracket plate 24. With reference to
(31) As shown in
(32) As shown in
(33) As shown in
(34) The recliner heart 28 may be mounted to the first and second bracket plates 24, 26 and may be operable in an unlocked state permitting relative rotation between the seatback frame 12 and the seat bottom frame 14 and a locked state preventing relative rotation between the seatback frame 12 and the seat bottom frame 14. The recliner heart 28 may be a round recliner heart, for example, or any other suitable type of recliner heart. The recliner heart 28 may include a first plate 68, a second plate and a locking mechanism. The first plate 68 may be rotationally fixed relative to the seat bottom frame 14.
(35) The second plate may be rotationally fixed to the seatback frame 12 and may cooperate with the first plate 68 to define a cavity in which the locking mechanism is disposed and the hub 34 is partially disposed. The second plate may cooperate with the locking mechanism to operate the recliner heart 28 between the locked state in which the locking mechanism engages the second plate to restrict movement of the second plate relative to the first plate 68 and the unlocked state in which the locking mechanism is disengaged from the second plate to permit relative rotation of the seatback frame 12 and the seat bottom frame 14.
(36) The locking mechanism may include, inter alia, coil springs, locking pawls having teeth and a cam. The coil springs may engage the cam so as to bias the teeth of the locking pawls into meshing engagement with teeth of the second plate when the recliner heart 28 is in the locked state. The teeth of the locking pawls may be disengaged from the teeth of the second plate when the recliner heart 28 is in the unlocked state. The recliner heart 28 can be similar or identical to that disclosed in Assignee's U.S. Pat. No. 10,800,296, the disclosure of which is incorporated herein by reference.
(37) An encapsulating ring 76 is disposed between the first and second bracket plates 24, 26 and covers the recliner heart 28 at a periphery thereof, thereby preventing debris and fluid from damaging components. The encapsulating ring 76 may be attached (e.g., welded) to the first bracket plate 24 and the first plate 68 of the recliner heart 28.
(38) The outer coil spring 30 may exert a torsional force that biases the recliner heart 28 toward a locked state. The outer coil spring 30 may wrap around the hub 34 and engage the first bracket plate 24 and the hand lever. The inner coil spring 32 may extend around the cross member 22 and may engage the first and second bracket plates 24, 26 to rotationally bias the seatback frame 12 toward the upright position relative to the seat bottom frame 14. The hub 34 may engage the hand lever and the recliner heart 28 and may transmit motion of the hand lever to the recliner heart 28 to cause the recliner heart 28 to move between the locked and unlocked states.
(39) The structure and function of the second recliner mechanism 20 may be similar or identical to that of the first recliner mechanism 18 and, therefore, will not be described again in detail. The cross member 22 may extend in a cross-vehicle direction and may connect the first recliner mechanism 18 to the second recliner mechanism 20. In this way, the cross member 22 may transmit rotational motion of the first recliner mechanism 18 to the second recliner mechanism 20 to move the second recliner mechanism 20 between the locked and unlocked states simultaneously with motion of the first recliner mechanism 18 between the locked and unlocked states.
(40) With continued reference to
(41) When a vehicle impact event occurs that exerts a force to the seatback frame 12 in a clockwise direction with respect to
(42) It should be understood that features of each of the first and second gussets 44, 46 such as the lengths of the gussets 44, 46 and the distances between the peaks of the gussets 44, 46 and the surfaces 50 of the plate bodies 36 may be adjusted to further optimize performance of the first bracket plates 24 (i.e., the first and second gussets 44, 46 absorbing the force of the impact event such that the seatback frame 12 does not move during the impact event). Furthermore, other features of the bracket plates 24 such as slots adjacent to the gussets 44, 46 and heights of the flanges 38 may also be adjusted to further optimize the performance of the first bracket plates 24.
(43) With reference to
(44) The bracket plate 124 may include a plate body 136 and a rim or flange 138. The plate body 136 may include a central aperture 140 and a plurality of mounting aperture 142 through which fasteners may extend to securely attach the bracket plate 124 to the seat bottom frame 14 of the seat assembly 10.
(45) The plate body 136 may also include a first protrusion or gusset 144 and a second protrusion or gusset 146. The first protrusion 144 may be similar or identical to that of the protrusion 44 described above, and therefore, will not be described again in detail.
(46) The second protrusion 146 may extend outwardly from the plate body 136 and the rim 138 in the same direction as the first protrusion 144. The second protrusion 146 may be located at or near an aft end 156 of the bracket plate 124 (the aft end 156 of the bracket plate 124 is proximate the rear end of the seat bottom frame 14) and may have an arcuate shape. The second protrusion 146 may have an upper end 158a that extends from the plate body 136 and a lower end 158b that is opposite the upper end 158a and also extends from the plate body 136. The second protrusion 146 is arcuate from the upper end 158a to the lower end 158b. The second protrusion 146 may also have a rear end 160a that extends from the rim 138 and a front end 160b that is opposite the rear end 160a and extends from the plate body 136.
(47) With reference to
(48) The bracket plate 224 may include a plate body 236 and a rim or flange 238. The plate body 236 may include a central aperture 240 and a plurality of mounting aperture 242 through which fasteners may extend to securely attach the bracket plate 224 to the seat bottom frame 14 of the seat assembly 10.
(49) The plate body 236 may also include a first protrusion or gusset 244 and an elongated second protrusion or gusset 246. The first protrusion 244 may be similar or identical to that of the protrusions 44, 144 described above, and therefore, will not be described again in detail.
(50) The second protrusion 246 may extend outwardly from the plate body 136 and the rim 138 in the same direction as the first protrusion 244. The second protrusion 246 may be located at or near an aft end 256 of the bracket plate 224 (the aft end 256 of the bracket plate 224 is proximate the rear end of the seat bottom frame 14) and may have an arcuate shape. The second protrusion 246 may have an upper end 258a that extends from the plate body 236 and a lower end 258b that is opposite the upper end 258a and also extends from the plate body 236. The second protrusion 246 is arcuate from the upper end 258a to the lower end 258b. The second protrusion 246 may also have a rear end 260a that extends from the rim 238 and a front end 260b that is opposite the rear end 260a and extends from the plate body 236. The front end 260b may be adjacent to a curved slot 245 that in turn at least partially surrounds the first protrusion 244. The second protrusion 246 may be arcuate from the rear end 260a to the front end 260b. The second protrusion 246 may also decrease in width as it extends from the rear end 260a to the front end 260b.
(51) With reference to
(52) The bracket plate 324 may include a plate body 336 and a rim or flange 338. The plate body 336 may include a central aperture 340 and a plurality of mounting aperture 342 through which fasteners may extend to securely attach the bracket plate 324 to the seat bottom frame 14 of the seat assembly 10.
(53) The plate body 336 may also include an elongated protrusion or gusset 346. The protrusion 346 may extend outwardly from the plate body 336 and the rim 338 in the same direction as the rim 338. The protrusion 346 may extend from an aft end 356 of the bracket plate 324 (the aft end 356 of the bracket plate 324 is proximate the rear end of the seat bottom frame 14) to a fore end 357 of the bracket plate 324 (the fore end 357 of the bracket plate 324 is proximate the front end of the seat bottom frame 14). The protrusion 346 may have an arcuate shape and may have an upper end 358a that extends from the plate body 336 and a lower end 358b that is opposite the upper end 358a and also extends from the plate body 336. The protrusion 346 is arcuate from the upper end 358a to the lower end 358b. The protrusion 346 may also have a rear end 360a that extends from the rim 338 and a front end 360b that is opposite the rear end 360a and also extends from the rim 338. The protrusion 346 may be arcuate from the rear end 360a to the front end 360b.
(54) With reference to
(55) The bracket plate 424 may include a plate body 436 and a rim or flange 438. The plate body 436 may include a central aperture 440 and a plurality of mounting aperture 442 through which fasteners may extend to securely attach the bracket plate 424 to the seat bottom frame 14 of the seat assembly 10.
(56) The plate body 436 may also include a first protrusion or gusset 444 and a second protrusion or gusset 446. The first protrusion 444 may extend outwardly from the plate body 436 and the rim 438 and may be located at or near a fore end 447 of the first bracket plate 424 (the fore end 447 of the first bracket plate 424 is proximate a front end of the seat bottom frame 14). The first protrusion 444 may have an arcuate shape. The first protrusion 444 may have an upper end 451a that extends from the plate body 436 and a lower end 451b that is opposite the upper end 451a and also extends from the plate body 436. The first protrusion 444 is arcuate from the upper end 451a to the lower end 451b. The first protrusion 444 may also have a front end 453a that extends from the rim 438 and a rear end 453b that is opposite the front end 453a. A slot or opening 452 may be formed in the plate body 436 and may be adjacent to the rear end 453b of the first protrusion 444.
(57) The second protrusion 446 may extend outwardly from the plate body 436 and the rim 438 in the same direction as the first protrusion 444. The second protrusion 446 may be located at or near an aft end 456 of the bracket plate 424 (the aft end 456 of the bracket plate 424 is proximate the rear end of the seat bottom frame 14) and may have an arcuate shape. The second protrusion 446 may have an upper end 458a that extends from the plate body 436 and a lower end 458b that is opposite the upper end 458a and also extends from the plate body 436. The second protrusion 446 is arcuate from the upper end 458a to the lower end 458b. The second protrusion 446 may also have a rear end 460a that extends from the rim 438 and a front end 460b that is opposite the rear end 460a. The front end 460b may be adjacent to a slot 445 (i.e., the slots 445, 452 are positioned between the first and second protrusions 444, 446).
(58) With reference to
(59) With reference to
(60) The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.