Vehicle seat apparatus
First Claim
1. A vehicle seat apparatus comprising:
- a cushion body provided on a frame member;
a seat cushion, a seating surface of which is formed by the cushion body;
a gear member rotatably supported at the frame member;
a driving mechanism supported at the frame member and connected to the gear member so as to rotate the gear member;
an arm swingably supported at the frame member and connected to a front-end portion of the cushion body; and
a link mechanism comprising;
a first bracket rotatably supported at the gear member around a shaft extended in a direction of a rotation center of the gear member;
a second bracket rotatably supported at the first bracket around a shaft extended substantially perpendicular to a rotation center of the first bracket; and
a link bracket, a first end of which is rotatably supported at the second bracket around a shaft extended substantially perpendicular to a rotation center of the second bracket, and a second end of which is connected to the arm, wherein the arm is connected to the gear member through the link mechanism, and with an up-and-down operation of the front-end portion of the cushion body relative to the frame member by means of a swing of the arm, a length of the seating surface is variable in a longitudinal direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle seat apparatus including a cushion body provided on a frame member, a seat cushion, a gear member, a driving mechanism, an arm, and a link mechanism having a first bracket rotatably supported at the gear member, a second bracket rotatably supported at the first bracket, and a link bracket, a first end of which is rotatably supported at the second bracket, and a second end of which is connected to the arm. The arm is connected to the gear member through the link mechanism, and with an up-and-down operation of a front-end portion of the cushion body relative to the frame member by means of a swing of the arm, a length of the seating surface is variable in a longitudinal direction.
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Citations
12 Claims
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1. A vehicle seat apparatus comprising:
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a cushion body provided on a frame member;
a seat cushion, a seating surface of which is formed by the cushion body;
a gear member rotatably supported at the frame member;
a driving mechanism supported at the frame member and connected to the gear member so as to rotate the gear member;
an arm swingably supported at the frame member and connected to a front-end portion of the cushion body; and
a link mechanism comprising;
a first bracket rotatably supported at the gear member around a shaft extended in a direction of a rotation center of the gear member;
a second bracket rotatably supported at the first bracket around a shaft extended substantially perpendicular to a rotation center of the first bracket; and
a link bracket, a first end of which is rotatably supported at the second bracket around a shaft extended substantially perpendicular to a rotation center of the second bracket, and a second end of which is connected to the arm, wherein the arm is connected to the gear member through the link mechanism, and with an up-and-down operation of the front-end portion of the cushion body relative to the frame member by means of a swing of the arm, a length of the seating surface is variable in a longitudinal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification