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Seat reclining mechanism

A technology of tilting device and seat, which is applied to vehicle seats, movable seats, special positions of vehicles, etc., can solve problems such as increased cost and increased thickness of tilting device.

Inactive Publication Date: 2009-10-07
DELTA KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, if, as mentioned above, a circular rod is provided in addition to the rotating cam and the locking gear, the number of parts increases, and therefore, there is a problem of increased cost, and there is also an increase in the thickness of the tilting device (corresponding to the circular rod). The thickness of the degree of the bar) the problem

Method used

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  • Seat reclining mechanism
  • Seat reclining mechanism
  • Seat reclining mechanism

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Embodiment Construction

[0041] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0042] Such as figure 1 , Figure 2A and Figure 2B As shown, the reclining device of the seat involved in this embodiment is a device installed on the seat cushion and the backrest. The device enables the seat to be tilted. The device includes a guide bracket 1 installed on the seat cushion, an internal gear 2 installed on the backrest, 4 locking gears 3, a rotating cam 4, a locking spring 5, a stop plate 6 and a ring 7.

[0043] Such as Figure 3A and Figure 3B As shown, the above-mentioned guide bracket 1 is in the shape of a disc and has a fitting portion. In this fitting portion, a fitting hole 1 a is formed coaxially with the center of the guide bracket 1 . The fitting hole 1a is formed with a notch 1b for locking the outer end portion 5a of the lock spring 5 made of a coil spring.

[0044] On the inner surface of the guid...

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PUM

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Abstract

The present invention provides a seat reclining mechanism with low cost for thinning, which comprises a guide bracket, an internal gear member coupled to the guide bracket in a rotatable manner about a rotation axis thereof with respect to the guide bracket, a plurality of lock gear members disposed between the guide bracket and the internal gear member, and a rotatable cam rotatably supported by either one of the guide bracket and the internal gear member. The rotatable cam has a cam body, and a plurality of engagement pawls disposed on a circumference of a circle having a center on the rotation axis and each formed to protrude from the cam body in a lock-causing rotation direction or an unlock-causing rotation direction, and each of the plurality of lock gear members has an engagement groove engageable with a corresponding one of the plurality of engagement pawls.

Description

technical field [0001] The invention relates to a reclining device for a seat. Background technique [0002] Conventionally, there is known a seat reclining device that is attached to a seat cushion and a seat back to allow the seat to recline. Japanese Patent Laid-Open Publication No. 2001-017259 and No. 2004-154585 disclose the following reclining device, which includes a guide bracket installed on one of the seat cushion and the backrest; The internal gear (internal gear); arranged between the guide bracket and the internal gear, a plurality of locking gears (lock gear) guided by sliding in the radial direction; make each locking gear engage with the internal gear in the locking direction and not A rotating cam moving in the unlocking direction of the engagement; pressing the rotating cam against a locking spring (lockspring) in the locking rotating direction. [0003] In this device, when the rotating cam is rotated in one direction by an operation lever, the lock gear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C1/025B60N2/22
CPCB60N2/2356B60N2/236
Inventor 樽泽诚冲靖和林利典
Owner DELTA KOGYO CO LTD