JP2006027599A - Vehicle seat with rear storage pivot device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle seat pivot device capable of changing a structure of a specific seat device, in concrete, folding a rear seat, and using the folded seat as a desk. <P>SOLUTION: The vehicle seat pivot device has a supporting assembly, an arm, and a first load cam. The arm is supported on the supporting assembly so as to pivotably rotate between first and second positions. The first load cam is pivotably rotatably arranged on the supporting assembly so as to selectively engaged with a first sector plate. The first load cam engages with a first part of the first sector plate to fix the arm at the first position. The first load cam engages with a second part of the first sector plate to fix the arm at the second position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle seat support device, and more particularly to a rear seat pivot device for a vehicle seat.

  Among the automotive markets, the market for minivans and sports multipurpose vehicles is very competitive. A growing concern in competition is the overall usefulness and comfort of the vehicle. One important utility feature that has received a lot of attention is in the interior of the flexible vehicle and in the flexible rear or third seat device. Flexibility in this context relates to the ability to change the configuration of a particular seat device. Passengers may wish to fold the rear or third seat, for example, to secure work space while traveling. Thus, the passenger can use the rear part of the folded seat back as a desk. In addition, passengers may wish to configure their seats to provide an open area for the vehicle's cargo compartment. In this way, the customer can place a large object on the loading platform using the loading platform section.

Summary of invention

  A vehicle seat pivot device is provided that includes a support assembly, an arm, and a first load cam. The arm is supported on the support assembly for pivoting between the first and second positions. A first load cam is pivotally disposed on the support assembly for selective engagement with the first sector plate. The first load cam engages a first portion of the first sector plate to secure the arm in the first position. The first load cam engages the second portion of the first sector plate to secure the arm in the second position.

In accordance with another aspect of the invention, a vehicle seat pivot apparatus is provided having a support assembly, an arm, a locking pin, and a first load cam. The arm is supported on the support assembly for pivoting between the first and second positions. A locking pin is disposed on the arm and engages the support assembly to provide torque in the first direction when the arm is in the first position. The first load cam is supported on the support assembly for pivoting engagement with the first sector plate. The first load cam engages the first sector plate when the arm is in the first position and provides torque in the second direction.
The second direction is opposite to the first direction. The arm is fixed in the first position by a combination of the torque provided by the locking pin and the torque provided by the single load cam.

According to another aspect of the present invention, a vehicle seat device having a seat portion, an arm, a first load cam, and a second load cam is provided. The arm is attached to the seat portion and is supported on the support assembly for pivoting between a first position and a second position.
When the arm is in the first position, the seat portion is in the seat position. When the arm is in the second position, the seat portion is in the stowed position. A first load cam is pivotally supported on the support assembly and selectively engages the first sector plate to secure the seat portion in the seat and storage positions. A second load cam is pivotally supported on the support assembly and selectively engages the second sector plate to secure the seat portion in the seat position.

  Further scope of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and examples illustrate preferred embodiments of the present invention and are intended to be illustrative only and are not intended to limit the scope of the invention. .

  The invention will be more fully understood with reference to the detailed description and accompanying drawings.

  The following preferred embodiments are merely exemplary in nature and are not intended to limit the invention, its application, or uses.

  FIG. 1 shows a vehicle seat device 10 having a seat back (seat backrest) 12, a seat bottom 14, and a housing pivot device 16. The seat back 12 is attached to the seat bottom 14 so as to be pivotable. The receiving pivot device 16 generally has a support subassembly 18, an arm subassembly 20, and a fixed subassembly 22. The seat bottom 14 is pivotally attached to the arm subassembly 20. The arm subassembly 20 is pivotally attached to the support subassembly 18 and sets the seat apparatus 10 between the seat state shown in FIG. 1 and the accommodated state shown in FIG. In the illustrated embodiment, it is necessary to be able to pivot the pivot device 10 relative to the arm subassembly, as shown in FIG. 2, so that the seat device 10 can be transformed into a seated or stowed state. However, in an alternative embodiment, the seat device 10 is fixedly attached to the receiving pivot device 16 and need not pivot or rotate.

  Referring to FIGS. 5A and 5B, the support subassembly 18 includes a main support bracket 24, a first sub-support bracket 26, and a second sub-support bracket 28. The main support bracket 24 has a plurality of fixing openings 30 and a control flange 32. The plurality of fixing openings 30 are configured to accommodate a plurality of fixing members (not shown) for fixing the main support bracket 24 to the vehicle floor. The control flange 32 has a main pivot opening 34, a biasing pin opening 39, a first locking surface 36, a second locking surface 38, and a support notch 37. The first secondary support bracket 26 has an arcuate slot 40, a cam pivot opening 43, and a central pivot opening 41. The second secondary support bracket 28 has an arcuate slot 42 and a cam pivot opening 45. The second sub support bracket 28 is disposed between the main support bracket 24 and the first sub support bracket 26. The arcuate slots 40, 42 of the first and second secondary support brackets 26, 28 are aligned with each other to form receiving surfaces 40a, 42a and seat surfaces 40b, 42b.

  The arm subassembly 20 generally includes an arm portion 44, a central pivot pin 46, a locking pin 48, a biasing member 50, and a biasing pin 52. The arm portion 44 has a central opening 54, a pair of rivet openings 56, a locking pin opening 58, a seat flange 60, a seat fixing opening 62, and a support boss 63 (shown in FIGS. 5A and 5B). )

  The fixed subassembly 22 includes a high load sector plate 64, a low load sector plate 66, a high load cam 68, a low load cam 70, a release lever 72, a first biasing portion 74, a second biasing portion 76, a slide pin 78, and A cam pivot 69 is provided. The fixation subassembly 22 is configured to fix the arm subassembly 20 in the first position shown in FIG. 1 and the second position shown in FIG.

  The high load sector plate 64 has a central opening 79, a locking pin opening 80, a pair of rivet openings 82, a notch 84, and a cam surface 86. The low load sector plate 66 has a central opening 88, a locking pin opening 90, a pair of rivet openings 92, a first notch 94, a second notch 96, and a cam surface 98. The first notch 94 includes an engagement surface 100 (shown in FIGS. 6 and 7). High load cam 68 has a pivot opening 102, a slide pin opening 104, a nose 106, and an arcuate end 108. The low load cam 70 has a pivot opening 110, a release lever opening 112, a nose 114, a cam end 116, and a fixed release end 118. The release lever 72 has a central opening 120, a handle 122, and a connector flange 124.

  With continued reference to FIGS. 5A and 5B, the receiving pivot device 16 is assembled as follows. The central pivot pin 46 of the arm subassembly 20 includes a central opening 54 of the arm portion 44, a main pivot opening 34 of the control flange 32 of the main support bracket 24, a central opening 88 of the low load sector plate 66, and a high load sector plate. 64 central openings 79 and the central pivot opening 41 of the first sub-support bracket 26 are disposed. The biasing member 50 of the arm subassembly 20 includes a coil spring including an arm 51 that engages with the biasing pin 52. The urging pin 52 is fixedly disposed in the urging pin opening 39 of the control flange 32 of the main support bracket 24. The biasing member 50 biases the arm subassembly 20 to the first position shown in FIG.

  As described above, the high load sector plate 64 and the low load sector plate 66 are disposed on the central pivot pin 46. The high load sector plate 64 and the low load sector plate 66 are fixedly attached to the arm portion 44 via a pair of rivets 65. The pair of rivets 65 are accommodated in the rivet opening 56 of the arm portion 44, the rivet opening 82 of the high load sector plate 64, and the rivet opening 92 of the low load sector plate 66. The rivet 65 fixes the high load and low load sector plates 64 and 66 to the arm portion 44.

  The locking pin 48 of the arm subassembly 20 is received in the locking pin opening 58 of the arm 44, the locking pin opening 80 of the high load sector plate 64, and the locking pin opening 90 of the low load sector plate 66. Is done. Therefore, when the arm portion 44 pivots with respect to the support subassembly 18, the arm portion 44, the high and low load sector plates 64 and 66, and the locking pin 48 all rotate together.

  The cam pivot 69 includes a pivot opening 102 of the high load cam 68, a pivot opening 110 of the low load cam 70, a cam pivot opening 43 of the first sub support bracket 26, and a cam pivot opening of the second sub support bracket 28. Part 45 and the central opening 120 of the release lever 72. Further, the first and second urging portions 74 and 76 of the fixed subassembly 22 are disposed on the cam pivot 69. The first biasing portion 74 has a coil spring including an arm 75 that engages with the handle 122 of the release lever 72 in order to bias the low-load cam 70 toward the low-load sector plate 66. Similar to the first urging portion 74, the second urging portion 76 has a coil spring including an arm 77 that engages with the slide pin 78. The slide pin 78 is disposed in the arcuate slots 40, 42 of the first and second secondary support brackets 26, 28 of the support subassembly 18. Further, the slide pin 78 is disposed in the slide pin opening 104 of the high load cam 68. Therefore, the second urging unit 76 urges the high load cam 68 to engage with the high load sector plate 64.

  FIG. 6 illustrates the storage pivot device 16 in the seat position, in which the first sub-support bracket 26 is omitted so that the low-load cam 70 and the low-load sector plate 66 are exposed. In this state, the nose 114 of the low load cam 70 is disposed in the first notch 94 of the low load sector plate 66. The cam edge 116 of the low load cam 70 is in frictional engagement with the engagement surface 100 of the first notch 94. As a result, as shown in FIG. 6, a counterclockwise torque with respect to the low-load sector plate 66 is generated. It should be noted that the first biasing portion 74 of the stationary subassembly 22 can ensure the above engagement by biasing the low load cam 70 against the low load sector plate 66.

  FIG. 8 shows the storage pivot device 16 in the seat position, in which the first sub-support bracket 26 is omitted so that the high load cam 68 and the high and low load sector plate 64 are exposed. In this position, the nose 106 of the high load cam 68 is received in the notch 84 of the high load sector plate 64. The nose 106 of the high load cam 68 applies a high load to limit the rotational displacement of the high load sector plate 64 and thus the arm subassembly 20. Further, the slide pin 78 supported by the high load cam 68 is disposed in the arcuate slots 40, 42 of the first and second secondary support brackets 26, 28 adjacent to the seat surfaces 40b, 42b. This provides additional support to limit the arm subassembly 20 from pivoting beyond the seat position. It should be understood that the second biasing portion 76 of the stationary subassembly 22 biases the slide pin 78 and thus the high-load cam 68 toward the high-load sector plate 64 to ensure the engagement. It is.

  FIG. 10 illustrates the storage pivot device 16 in the seat position. The auxiliary support brackets 26 and 28, the load cams 68 and 70, and the position of the locking pins 48 of the arm subassembly 20 are exposed. The sector plates 64 and 66 are omitted. The locking pin 48 engages the first locking surface 36 of the control flange 32 of the main support bracket 24. Accordingly, as illustrated in FIGS. 6-11, the locking pin 48 limits the arm subassembly 20 from rotating counterclockwise with respect to the support subassembly 18. The support boss 63 on the arm portion 44 engages with a support notch 37 on the control flange 32 of the main support bracket 24. This engagement similarly suppresses counterclockwise rotation of the arm subassembly 20 relative to the support subassembly 18.

  FIG. 7 illustrates the storage pivot device 16 in the storage position, in which the first sub-support bracket 26 is omitted so that the low-load cam 70 and the low-load sector plate 66 are exposed. . The nose 114 of the low load cam 70 is received in the second notch 96 of the low load sector plate 66. As a result, the low-load sector plate 66 and, by extension, the arm subassembly 20 are fixed in the storage position. The first biasing portion 74 (shown in FIGS. 4 and 5) of the fixed subassembly 22 biases the low-load cam 70 toward the low-load sector plate 66, thereby ensuring the engagement. .

  FIG. 9 illustrates the storage pivot device 16 in the storage position, in which the first sub-support bracket 26 is omitted so that the high-load cam 68 and the high-load sector plate 64 are exposed. . A slide pin 78 is disposed in the slide pin opening 104 of the high load cam 68 and engages with the storage surfaces 40a, 42a of the arched slots 40, 42 provided in the first and second sub-support brackets 26, 28. . The arcuate end 108 of the high load cam 68 is slidably engaged with the cam surface 86 of the high load sector plate 64. It should be understood that the high load cam 68 does not secure the high load sector plate 64 in the stowed position.

  FIG. 11 illustrates the storage pivot device 16 in the storage position. The auxiliary support brackets 26 and 28, the load cams 68 and 70, and the position of the locking pin 48 of the arm subassembly 20 are exposed. The sector plates 64 and 66 are omitted. The locking pin 48 engages the second locking surface 38 of the control flange 32 of the main support bracket 24. Accordingly, as illustrated in FIGS. 6-11, the locking pin 48 limits the clockwise rotation of the arm subassembly 20 relative to the support subassembly 18.

  The following steps describe the operation of the storage pivot device 16 between the seat position and the storage position. In the storage pivot device 16 at the seat position shown in FIGS. 6 and 8, a clockwise moment is applied to the handle 122 of the release lever 72. This moment is transmitted to the low load cam 70 through the connector flange 124 of the release lever 72. That is, the low load cam 70 begins to pivot clockwise, with the result that the cam edge 116 is disengaged from the engagement surface 100 of the first notch 94 of the low load sector plate 66. When the release lever and the low load cam 70 are further rotated, the fixed release edge 118 of the low load cam 70 is engaged with the slide pin 78. As a result, the slide pin 78 is displaced from the sheet surfaces 40b and 42b of the first and second sub-support brackets 26 and 28. Then, the nose 106 of the high load cam 68 is released from the notch 84 of the high load sector plate 64. When this happens, the high and low load sector plates 64 and 66 and the arm subassembly 20 begin to rotate freely in the clockwise direction toward the stowed position illustrated in FIGS. When this rotation starts, the clockwise force applied to the handle 122 of the release lever 72 may be relaxed. When the release lever 72 is released, the first urging portion 74 urges the release lever 72 counterclockwise, so that the nose 114 of the low load cam 70 can slide on the cam surface 98 of the low load sector plate 66. Engage with. Further, the second biasing portion 76 biases the slide pin 78 and the high load cam 68 counterclockwise, so that the nose 106 of the high load cam 68 slides with the cam surface 86 of the high load sector plate 64. Engage possible. This continues until the nose 114 of the low load cam 70 is aligned with the second notch 96 of the low load sector plate 66. When aligned, the first biasing portion 74 biases the nose 114 of the low load cam 70 toward the second notch 96 of the low load sector plate 66. As a result, the low-load sector plate 66 and, by extension, the arm subassembly 20 are fixed in the storage position.

  In order to return the storage pivot device 16 to the seat position shown in FIGS. 6, 8, and 10, a clockwise force is again applied to the handle 122 of the release lever 72. As a result, the nose 114 of the low load cam 70 is detached from the second notch 96 of the low load sector plate 66. Then, a counterclockwise force is applied to the arm subassembly 20 to move the arm subassembly 20 and the high load and low load sector plates 64 and 66 to the seat positions shown in FIGS. 6, 8, and 10. After fully rotating, the clockwise force applied to the handle 122 of the release lever 72 may be relaxed. As a result, the nose 114 of the low load cam 70 is biased toward the first notch 94 of the low load sector plate 66. As a result, the cam end 116 of the low load cam 70 is frictionally engaged with the engagement surface 100 of the first notch 94 and counterclockwise torque is applied to the low load sector plate 66. Further, the second urging portion 76 urges the nose 106 of the high load cam 68 toward the notch 84 of the high load sector plate 64. It should be understood that the high load cam 68 and the high load sector plate 64 are interconnected to prevent pivoting of the arm subassembly 20 in response to large forces. Furthermore, since the engagement surface 100 of the cam end portion 116 of the low load cam 70 and the first notch 94 of the low load sector plate 66 is frictionally engaged, a slight amount of the arm subassembly 20 is accommodated in response to a small force. It should be understood that it prevents pivoting motion.

  In view of the above, it should be understood that the storage pivot device 16 of the present invention provides the function of fixing the seat device 10 in the seat position and the storage position. Further, the above-described embodiment includes a high-load sector plate 64 that interacts with the high-load cam 67 and a low-load sector plate 66 that interacts with the low-load cam 70 in order to realize a multi-lock structure. It should be understood that the storage pivot device 16 having a single sector plate and a single load cam is intended to be included within the scope of the present invention. According to an alternative embodiment, the storage pivot device 16 has only a low load sector plate 66 and a low load cam 70. As described above in the first embodiment, by maintaining the storage pivot device 16 in a fixed position, the low load sector plate 66 and the low load cam 70 interact and engage to provide a load applied to the arm subassembly 20. Can be sufficiently suppressed.

  The description of the invention is merely exemplary in nature and modifications that do not depart from the heart of the invention are intended to be included within the scope of the invention. Such variations are considered not to depart from the spirit and scope of the invention.

FIG. 1 is a side view of a vehicle seat device in a seat position. FIG. 2 is a side view of the vehicle seat device shown in FIG. FIG. 3 is a side view of the vehicle seat apparatus shown in FIG. 1 in the storage position. FIG. 4 is a perspective view of the vehicle seat pivot device shown in FIGS. 5A is an exploded perspective view of the vehicle seat pivot device shown in FIG. FIG. 5B is a perspective view showing a fixing mechanism of the vehicle seat pivot device shown in FIG. 5A. FIG. 6 is a side view of the vehicle seat pivot device shown in FIG. 4, showing the low load sector plate and low load cam in the seat position. FIG. 7 is a side view of the vehicle seat device shown in FIG. 6 in the seat position. FIG. 8 is a side view of the vehicle seat pivot device showing the high load sector plate and high load cam in the seat position. FIG. 9 is a side view of the vehicle seat device shown in FIG. 8 in the storage position. FIG. 10 is a side view of the vehicle seat pivot device and shows the position of the locking pin in the seat position. FIG. 11 is a side view of the vehicle seat pivot device shown in FIG. 10 and shows the position of the locking pin in the storage position.

Explanation of symbols

10: vehicle seat device, 12: seat back, 14: seat bottom, 16: receiving pivot device, 18: support subassembly, 20: arm subassembly, 22: fixed subassembly, 24: main support bracket, 26: first Sub-support bracket, 28: second sub-support bracket, 30: fixing opening, 32: control flange, 34: main pivot opening, 36: first locking surface, 38: second locking surface 37: support notch, 39: biasing pin opening, 40, 42: arched slot, 40a, 42a: receiving surface, 40b, 42b: seat surface, 41: central pivot opening, 43: cam pivot opening, 44: arm portion, 45: cam pivot opening, 46: center pivot pin, 48: locking pin, 50: biasing member, 52: biasing pin, 54: center opening, 6: Rivet opening, 58: Locking pin opening, 60: Seat flange, 62: Seat fixing opening, 63: Support boss, 64: High load sector plate, 66: Low load sector plate, 68: High load cam , 69: cam pivot, 70: low load cam, 72: release lever, 74: first urging portion, 76: second urging portion, 78: slide pin, 79: central opening, 80: locking pin opening Part, 82: rivet opening, 84: notch, 86: cam surface, 88: central opening, 90: locking pin opening, 92: rivet opening, 94: first notch, 96: second notch, 98 : Cam surface, 100: engagement surface, 102: pivot opening, 104: slide pin opening, 106: nose, 108: arcuate end, 110: pivot opening, 112: release lever opening, 114: groove 'S, 116: cam end, 118: unlocking end, 120: central opening, 122: handle, 124 connector flange.

Claims (20)

A vehicle seat pivot device,
A support assembly;
An arm supported on the support assembly for pivoting between the first and second positions;
A first load cam pivotally disposed on the support assembly;
The first load cam includes a first portion of the first sector plate for securing the arm in the first position and a second portion of the first sector plate for securing the arm in the second position. A device characterized by selectively engaging a portion. The apparatus of claim 1, comprising:
The first sector plate includes a first notch for receiving a portion of the first load cam when the arm is fixed in the first position and a first notch when the arm is fixed in the second position. And a second notch for receiving a portion of one of the load cams. The apparatus of claim 1, comprising:
The first sector plate is fixed to rotate with the pivoting movement of the arm. The apparatus of claim 1, comprising:
The apparatus further comprising a biasing portion that biases the first load cam so as to engage with the first sector plate. The apparatus of claim 1, comprising:
A second load cam disposed pivotably on the support assembly;
The second load cam is selectively engaged with the second sector plate to secure the arm in the first position. The apparatus of claim 5, comprising:
The apparatus, wherein the second sector plate has a notch for receiving a portion of the second load cam when the arm is fixed in the first position. The apparatus of claim 5, comprising:
The apparatus, wherein the second sector plate is fixed to rotate with the pivoting of the arm. The apparatus of claim 1, comprising:
The apparatus further comprising a locking pin disposed on the arm to engage the support assembly and prevent the arm from pivoting beyond the first and second positions. A vehicle seat pivot device,
A support assembly;
An arm supported on the support assembly for pivoting between the first and second positions;
A locking pin disposed on the arm that engages the support assembly to provide torque in a first direction when the arm is in the first position;
A first sector plate supported to rotate with the pivoting of the arm;
A first load cam pivotally supported on the support assembly, wherein the arm is fixed in a first position by engagement with a first sector plate, and a first cam in a direction opposite to the first direction. And a first load cam operable to impart torque to the arm in the two directions. The apparatus of claim 9, comprising:
The first sector plate includes a first notch for receiving a portion of the first load cam when the arm is in the first position, and a first load cam when the arm is in the second position. And a second notch for receiving a portion of the device. The apparatus of claim 9, comprising:
The first sector plate is fixed to the arm. The apparatus of claim 9, comprising:
The apparatus further comprising a biasing portion that biases the first load cam so as to engage with the first sector plate. The apparatus of claim 9, comprising:
A second load cam pivotally supported on the support assembly;
The second load cam engages with the second sector plate and fixes the arm in the first position. 14. The device according to claim 13, wherein
The apparatus, wherein the second sector plate has a notch for receiving a portion of the second load cam. A vehicle seat device,
A seat part;
An arm attached to the seat portion for pivoting between a first position when the seat portion is in the seat position and a second position when the seat portion is in the stowed position An arm supported on top,
A first load cam pivotally supported on the support assembly, the first load selectively engaged with the first sector plate to secure the seat portion in the seat position and the stowed position With cam,
A second load cam pivotally supported on the support assembly, wherein the second load cam selectively engages the second sector plate to secure the seat portion in the seat position; A device comprising: The apparatus of claim 15, comprising:
The apparatus further comprising a locking pin disposed on the arm that engages the support assembly to provide torque in the first direction when the seat portion is in the seat position. The apparatus of claim 16, comprising:
The first load cam is configured to apply torque to the first sector plate in a second direction opposite to the first direction when the seat portion is at the seat position. The apparatus of claim 15, comprising:
The first selector plate includes a first notch for receiving a part of the first load cam when the seat portion is at the seat position, and one of the first load cams when the seat portion is at the storage position. And a second notch for receiving the part. The apparatus of claim 15, comprising:
The apparatus, wherein the second selector plate has a notch for receiving a part of the second load cam when the seat portion is at the seat position. The apparatus of claim 15, comprising:
The apparatus wherein the first and second sector plates are fixed to rotate with the pivoting of the arm.

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