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US 6,773,069 B1Granted
Vehicle seat
AssigneeTs Tech Co., Ltd.
InventorsYoshinobu Kaneko, Masami Yoshida
Life of this patent
Estimating the term…
Abstract
The present vehicle seat has a framework 14, a plurality of zigzag springs 25, 25 attached between side frame member 17, 17 of the framework 14, and a height control mechanism 38 moving the framework 14 up and down relative to a vehicle body. The spring tip end 26 of each of the springs 25 is arranged at a position adjacent to the center line which vertically divides the side member 17, so that the distance between the spring tip end 26 and the center line is shorter than the distance between the spring tip end 26 and the upper edge 30 of the side member 17. Arms 51, 52 and an elongated link 53 of the height control mechanism 38 are arranged outside the side member 17.
Claims22
A vehicle seat comprising:
- a framework which includes a pair of left and right side frame members extending in a back-and-forth direction, a front frame member having left and right side plates fixed to front portions of the side frame members, respectively, and a rear frame member having left and right side plates fixed to rear portions of the side frame members, respectively;
- a plurality of zigzag springs positioned between the front frame member and the rear frame member, each of said zigzag springs having spring tip ends attached at middle portions between the front portions and the rear portions of the side frame members;
- and
- a height control mechanism arranged to move the framework up and down relative to a vehicle body;
- wherein each of said spring tip ends is provided at a position adjacent to a center line which vertically divides the side frame member, so that a distance between the spring tip end and the center line is shorter than a distance between the spring tip end and an upper edge of the side frame member.
2 more elements
A vehicle seat comprising:
- a framework which includes a pair of left and right side frame members extending in a back-and-forth direction, a front frame member having left and right side plates fixed to front portions of the side frame members, respectively, and a rear frame member having left and right side plates fixed to rear portions of the side frame members, respectively;
- and
- a height control mechanism arranged to move the framework up and down relative to a vehicle body, said height control mechanism comprising front and rear arms which connect the framework to the vehicle body, an elongated link which is connected to the rear arm and extends in the back-and-forth direction, and operating means that is connected to a front end of the elongated link to move the elongated link in the back-and-forth direction;
- wherein said side frame member and said rear arm are connected to each other by caulking one end of a shaft sleeve, and the rear frame member and the side frame member are connected to each other by a bolt which is inserted into a central through hole of the shaft sleeve.
1 more element
A vehicle seat comprising:
- a framework which includes a pair of left and right side frame members extending in a back-and-forth direction, a front frame member having left and right side plates fixed to front portions of the side frame members, respectively, and a rear frame member having left and right side plates fixed to rear portions of the side frame members, respectively;
- a height control mechanism arranged to move the framework up and down relative to a vehicle body, said height control mechanism comprising front and rear arms which connect the framework to the vehicle body, an elongated link which is connected to the rear arm and extends in the back-and-forth direction, and operating means that is connected to a front end of the elongated link to move the elongated link in the back-and-forth direction;
- said operating means comprising an output gear which is rotated by hand and a link gear which is meshed with the output gear and is connected to the front end of the elongated link;
- said height control mechanism further comprising elastic means which urges the link gear in a given direction, and said elastic means including a laterally extending torsion bar spring which has a length longer than half the distance between the side frame members.
1 more element
A vehicle seat comprising:
- a framework which includes a pair of left and right side frame members extending in a back-and-forth direction, a front frame member having left and right side plates fixed to front portions of the side frame members, respectively, and a rear frame member having left and right side plates fixed to rear portions of the side frame members, respectively;
- a height control mechanism arranged to move the framework up and down relative to a vehicle body, said height control mechanism comprising front and rear arms which connect the framework to the vehicle body, an elongated link which is connected to the rear arm and extends in the back-and-forth direction, and operating means that is connected to a front end of the elongated link to move the elongated link in the back-and-forth direction;
- said operating means comprising an output gear which is rotated by motor power and a link gear which is meshed with the output gear and is connected to the front end of the elongated link;
- said height control mechanism further comprising elastic means which urges the link gear in a given direction, and said elastic means including a laterally extending torsion bar spring which has a length longer than half the distance between the side frame members.
1 more element
Dependencies are inferred from the claim text.