Reclining device for vehicle seat
AssigneeDas Co., Ltd
InventorsKI HONG KIM, MEANG HO KIM
Life of this patent
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Abstract
Disclosed herein is a reclining device for a vehicle seat, which includes a plate holder, a sector tooth rotatably inserted into the plate holder, a pawl tooth engaged with the sector tooth, an operating cam to move the pawl tooth by rotation thereof to fix the sector tooth, a guide bush press-coupled to the operating cam and having a sealing protrusion to support a cam spring, a hollow operation shaft to rotate the operating cam, and the cam spring to restore the operating cam rotated by the operation shaft. Thus, it is possible to prevent a solution for an electrodeposition from infiltrating into the reclining device, to secure a space in which the cam spring is smoothly operated, and to contribute to a reduction in weight by use of the hollow shaft.
Claims7
A reclining device for a vehicle seat, which is provided between an upper bracket connected to a seat back frame and a lower bracket connected to a seat cushion frame so as to adjust an angle of the seat back frame, the reclining device for a vehicle seat comprising:
- a plate holder coupled to the lower bracket and having a plurality of guide protrusions formed on one surface thereof;
- a sector tooth rotatably inserted into the plate holder and having an internal gear formed on an inner peripheral surface thereof;
- a pawl tooth slidably provided in a space between the guide protrusions and having an external gear engaged with the internal gear of the sector tooth;
- an operating cam configured to move the pawl tooth by rotation thereof to engage the external gear with the internal gear of the sector tooth;
- a guide bush integrally and rotatably coupled to the operating cam and having a first through-hole formed in a center thereof, the guide bush comprising a spring fixing portion formed at one side thereof;
- an operation shaft spline-coupled to the first through-hole of the guide bush to rotate the operating cam;
- and
- a cam spring, one end of which is supported by the plate holder while the other end thereof is supported by the spring fixing portion of the guide bush, so as to restore the operating cam rotated by the operation shaft.
Dependencies are inferred from the claim text.