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Lock device and seat reclining device

A technology for locking devices and locking components, which is applied to vehicle seats, chairs, recliners, etc., and can solve problems such as increased friction and jamming

Inactive Publication Date: 2008-07-23
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the frictional force between the guide surface 57a and the guided surface 55a increases, and a phenomenon of jamming may occur during the unlocking operation.

Method used

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  • Lock device and seat reclining device
  • Lock device and seat reclining device
  • Lock device and seat reclining device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a case where the lock device 1 is applied to a seat reclining device 2 for a vehicle will be described. FIG. 1 is a perspective view showing a frame of a seat reclining device 2 according to the present embodiment.

[0032] 1. Overall configuration of the seat reclining device 2

[0033] As shown in FIG. 1 , the seat reclining device 2 has: a seat back frame 3 constituting a frame of the seat back; a seat cushion frame 4 constituting a frame of a seat cushion; The locking device 1 of the connecting portion between the seat cushion frames 4 , the operating lever 5 and the lever shaft 6 as the operating portion of the locking device 1 . Furthermore, when the locking device 1 is in the locked state, the angle of the seat back frame 3 relative to the seat cushion frame 4 is fixed. On the other hand, when the lock device 1 is in the unlocked state by ope...

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PUM

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Abstract

The present invention provides a device capable of suppressing the jamming phenomenon that occurs during the unlocking operation, and when there are a plurality of locking members that are operated by the cam member, it is possible to suppress the timing of engagement of the plurality of locking members during the locking operation. Deviation of the locking device. In this locking device, the guide portion (14) of the lower conductor (15) has a plurality of cam guide surfaces (14a) spaced apart from each other along the circumferential direction, and the cams (13) have respectively A plurality of guided surfaces (13b) abutting against a plurality of cam guide surfaces (14a), wherein the guided surface (13b) in the eccentric direction of the cam (13) is oriented by the force of the lock spring (16) , extending toward the release phase side relative to the other guided surfaces (13b).

Description

technical field [0001] The present invention relates to a lock device capable of engaging and releasing two members, and a seat reclining device using the lock device for adjusting the angle of a seat cushion and a seat back. Background technique [0002] As a technology related to a lock device used in a seat reclining device, for example, Patent Document 1 below discloses the following technology. The locking device is configured substantially the same as the embodiment of the present invention described later. That is, as shown in FIGS. 7 and 8 , a lower conductor 51 , an upper gear 52 , a collar 53 , three pawls 54 , a cam 55 , and a spring 56 are provided. The upper gear 52 has internal teeth 52a formed on the inner peripheral surface. On the other hand, external teeth 54 a that engage with the above-mentioned internal teeth 52 a are formed on the outer peripheral end surfaces of the three pawls 54 . The cam 55 oscillates between the locked phase and the released pha...

Claims

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Application Information

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IPC IPC(8): A47C1/025
CPCB60N2/236
Inventor 名仓干人小岛康敬
Owner AISIN SEIKI KK