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Seat reclining apparatus for vehicle

A technology for vehicle seats and seats, which is applied to vehicle seats, special positions of vehicles, movable seats, etc., can solve the problems of increasing manufacturing processes and increasing numbers, and achieve cost reduction, the number of components and the number of manufacturing processes. The effect of reduced, low number of parts

Inactive Publication Date: 2007-06-20
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although this structure can eliminate the above-mentioned time difference between the two locking mechanisms, the number of parts increases (such as two shafts and a connecting rod) and the manufacturing process increases (such as a welding process)

Method used

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  • Seat reclining apparatus for vehicle
  • Seat reclining apparatus for vehicle
  • Seat reclining apparatus for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] 1 and 2 show a vehicle seat reclining device having a seat cushion frame 11 (partially shown), a seat back frame 12 (partially shown) and a locking mechanism 20 . The cushion frame 11 is a frame for a seat cushion (not shown) of a vehicle seat, and the seat back frame 12 is a frame for a seat back (not shown) of a vehicle seat. Both frames 11 and 12 are made of sheet metal for supporting the seat cushion and the seat back. Each of the frames 11 and 12 is provided on both sides of the seat in the vehicle width direction. The seat back frame 12 is rotatably connected to the cushion frame 11 by a lock mechanism 20 and is rotatable about a rotation axis O of the seat back frame 12 relative to the cushion frame 11 . Lock mechanisms 20 (first lock mechanism 20, second lock mechanism 20) are provided on each side of the seat in the vehicle width direction. The locking mechanism 20 limits or allows rotational movement of the seat back frame 12 relative to the cushion frame 11...

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PUM

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Abstract

A vehicle seat reclining device includes a lock mechanism at each side of the vehicle seat for restricting or allowing a rotational movement of a seat back relative to a seat cushion. The lock mechanism includes a cam mechanism rotating around a rotational axis of the seat back relative to the seat cushion for restricting or allowing the relative rotation between the seat back and the seat cushion. The cam mechanism includes an engagement hole and a first shaft provided at the lock mechanism having an engagement portion engaging with the engagement hole with a clearance The other side lock mechanism includes a second shaft and a connecting portion for connecting the second shaft with the first shaft, wherein the second shaft is connected with the first shaft in such a manner that a rotation position of the second shaft is adjusted to agree with a rotation allowing timing of the relative rotation between the seat back and the seat cushion by the lock mechanisms.

Description

technical field [0001] The present invention generally relates to seat reclining devices for vehicle seats. Background technique [0002] In car seats, various seat reclining devices have been used. Basically, the seat reclining device is used to recline the seat back relative to the seat cushion. The reclining device includes a locking mechanism that allows or limits rotational movement of the seat back relative to the seat cushion to allow the occupant to select any desired seating position and maintain him or her in the selected position. Locking mechanisms are generally provided on each side of the seat to perform reclining operations smoothly. [0003] As an example of such a locking mechanism used in a seat apparatus, Japanese Patent No. 2002-112849A discloses a seat reclining device including a pair of locking mechanisms, one on each of the left and right sides of a seat. As shown in the drawings of Japanese Patent 2002-112849A, the two locking mechanisms are provi...

Claims

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Application Information

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IPC IPC(8): B60N2/22
CPCB60N2/2356B60N2/236
Inventor 山田幸史小岛康敬
Owner AISIN SEIKI KK
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