Reclining angle adjustment device
AssigneeShiroki Kinzoku Kogyo Kabushiki Kaisha
InventorsNaoaki Katsumoto, Hideyuki Ohshiro, Masanori Sakai
Life of this patent
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Abstract
A reclining angle adjustment device used to obtain best inclination of a reclining seat for passengers, including a seat back arm fixed to a seat back portion, a base arm with an internal gear connected with the seat back arm through an axis, a stopper, a regulating plate, the first control lever and the second control lever. For rough adjustment, the first control lever is inclined forwardly or backwardly by a passenger on seat so as to disengage the stopper from the regulating plate. For minute adjustment, the second control lever is repeatedly moved round upwardly and downwardly so as to roll a pinion in the internal gear provided in the seat back arm.
Claims6
A reclining angle adjustment device for a reclining seat, comprising:
- a seat back arm which is fixed to a seat back portion being rotatably mounted on a first axis,
- a base arm which includes an arc type internal gear therein and is fixed to a seat portion being rotatably mounted on said first axis,
- a first control lever for rough adjustment of reclining angle rotatably mounted on said seat back arm rotating a stopper clockwise and counterclockwise,
- a regulating plate being engaged with said stopper,
- a second control lever for minute adjustment of reclining angle rotatably mounted on said first axis coaxially with the first pinion,
- a relatively enlarged gear which is fixed on a second axis and is engaged with a first pinion being rotated by said second control lever,
- a second pinion which is fixed on said second axis coaxially with said relatively enlarged gear being engaged with said arc type internal gear, and
- a brake member which obstructs rotation of said first pinion by means of friction force generated with said base arm
- wherein said second control lever includes a feeding gear and a feeding pawl which is engaged with said feeding gear to roll said second pinion through said relatively enlarged gear.
Dependencies are inferred from the claim text.