Height adjuster operation mechanism for an automotive seat
First Claim
1. A height adjuster operation mechanism for use in an automotive seat, comprising:
- a front rotary shaft rotatably mounted to right and left upper rails of a seat adjuster so as to extend across said right and left upper rails for providing a driving rotary force to working parts of a front height adjuster to raise and lower the front portion of a seat cushion frame;
a rear rotary shaft rotatably mounted in the rear of said front rotary shaft to said right and left upper rails of said seat adjuster so as to extend across said right and left upper rails for providing a driving rotary force to working parts of a rear height adjuster to raise and lower the rear portion of said seat cushion frame;
a driving rotary member rotatably fitted on said front rotary shaft;
cooperative rotary means located between said front and rear rotary shafts and connected with both said driving rotary member and said rear rotary shaft;
a socket fixed to said front rotary shaft;
an operation knob axially movably mounted on said front rotary shaft between said driving rotary member and said socket;
said socket being provided on the side thereof facing said operation knob with an engagement portion which is engageable with said operation know; and
,said driving rotary member being provided on the side thereof facing said operation knob with an engagement portion engageable with said operation knob,whereby, when said operation knob is moved axially to be brought into engagement with either said driving rotary member or said socket, then the rotational force of said operation knob can be transmitted to said driving rotary member or said socket to rotate said rear rotary shaft or said front rotary shaft respectively so as to adjust the height of a seat cushion of said automotive seat.
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Accused Products
Abstract
A height adjuster operation mechanism which is adapted to independently adjust the heights of the front and rear portions of a seat cushion of an automotive seat. In the operation mechanism, front and rear rotary shafts are rotatably mounted to the right and left upper rails of a seat adjuster, a driving rotary member for providing a driving rotary force to the working parts of a rear height adjuster to raise and lower the rear portion of the seat cushion is rotatably mounted to the front rotary shaft, a socket for providing a driving rotary force to the working parts of a front height adjuster to raise and lower the front portion of the seat cushion is mounted to the front rotary shaft integrally therewith, and an operation knob engageable with the driving rotary member or socket is axially movably mounted to the front rotary shaft between the socket and driving rotary member, so that by bringing the operation knob into engagement with the driving rotary member or socket and rotating the engaged operation knob the height of the rear or front portion of the seat cushion can be adjusted.
23 Citations
8 Claims
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1. A height adjuster operation mechanism for use in an automotive seat, comprising:
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a front rotary shaft rotatably mounted to right and left upper rails of a seat adjuster so as to extend across said right and left upper rails for providing a driving rotary force to working parts of a front height adjuster to raise and lower the front portion of a seat cushion frame; a rear rotary shaft rotatably mounted in the rear of said front rotary shaft to said right and left upper rails of said seat adjuster so as to extend across said right and left upper rails for providing a driving rotary force to working parts of a rear height adjuster to raise and lower the rear portion of said seat cushion frame; a driving rotary member rotatably fitted on said front rotary shaft; cooperative rotary means located between said front and rear rotary shafts and connected with both said driving rotary member and said rear rotary shaft; a socket fixed to said front rotary shaft; an operation knob axially movably mounted on said front rotary shaft between said driving rotary member and said socket; said socket being provided on the side thereof facing said operation knob with an engagement portion which is engageable with said operation know; and
,said driving rotary member being provided on the side thereof facing said operation knob with an engagement portion engageable with said operation knob, whereby, when said operation knob is moved axially to be brought into engagement with either said driving rotary member or said socket, then the rotational force of said operation knob can be transmitted to said driving rotary member or said socket to rotate said rear rotary shaft or said front rotary shaft respectively so as to adjust the height of a seat cushion of said automotive seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification