Vehicle seat comprising a height-adjustable seat frame
First Claim
1. A vehicle seat comprising:
- a height-adjustable seat frame comprising at least two seat frame parts which can be moved relative to one another and at least one gas spring arranged between the seat frame parts for height adjustment purposes;
at least one control device for acting upon the gas spring, the control device comprises at least one valve device attached to the first seat frame part and having control valves for actuating gas flows for the gas spring, and a control link provided on a second seat frame part for actuating the control valves, so that a predefinable height of the vehicle seat is ensured regardless of a weight load on the vehicle seat; and
an adjustment device for adjusting the control link by relative movement with respect to the second seat frame part independently of a relative position between the seat frame parts, movement of the control link relative to the second seat frame part causes a height adjustment of the vehicle seat,wherein the control link is rotatably arranged solely on a center axle of a scissors-type frame, the scissors-type frame have at least two scissor arms.
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Accused Products
Abstract
A vehicle seat includes a height-adjustable seat frame which has at least two seat frame parts which can be moved relative to one another and at least one gas spring arranged between the seat frame parts for height adjustment purposes. The seat includes a control device that acts upon the gas spring and includes a valve device attached to a first seat frame part and has control valves for actuating gas flows for the gas spring. A control link on a second frame part actuates the control valves, so that a predefinable height of the vehicle seat is ensured regardless of a weight load on the vehicle seat. Movement of the control link relative to the second seat frame part brings about a height adjustment of the vehicle seat.
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Citations
17 Claims
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1. A vehicle seat comprising:
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a height-adjustable seat frame comprising at least two seat frame parts which can be moved relative to one another and at least one gas spring arranged between the seat frame parts for height adjustment purposes; at least one control device for acting upon the gas spring, the control device comprises at least one valve device attached to the first seat frame part and having control valves for actuating gas flows for the gas spring, and a control link provided on a second seat frame part for actuating the control valves, so that a predefinable height of the vehicle seat is ensured regardless of a weight load on the vehicle seat; and an adjustment device for adjusting the control link by relative movement with respect to the second seat frame part independently of a relative position between the seat frame parts, movement of the control link relative to the second seat frame part causes a height adjustment of the vehicle seat, wherein the control link is rotatably arranged solely on a center axle of a scissors-type frame, the scissors-type frame have at least two scissor arms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A vehicle seat comprising:
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a height-adjustable seat frame comprising at least two seat frame parts which can be moved relative to one another and at least one gas spring arranged between the seat frame parts for height adjustment purposes; and at least one control device for acting upon the gas spring, the control device comprises; at least one valve device attached to the first seat frame part and having control valves for actuating gas flows for the gas spring; and a control link provided on a second seat frame part for actuating the control valves, so that a predefinable height of the vehicle seat is ensured regardless of a weight load on the vehicle seat; and an adjustment device for adjusting the control link by relative movement with respect to the second seat frame part independently of a relative position between the seat frame parts, movement of the control link relative to the second seat frame part causes a height adjustment of the vehicle seat, wherein the control link is rotatably arranged solely on a center axle of a scissors-type frame, the scissors-type frame have at least two scissor arms, wherein the control link is rotatably articulated on one of the seat frame parts and is formed at least in some sections as a cam disc with at least two parallel control paths. - View Dependent Claims (15)
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16. A vehicle seat comprising:
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a height-adjustable seat frame comprising at least two seat frame parts which can be moved relative to one another and at least one gas spring arranged between the seat frame parts for height adjustment purposes; and at least one control device for acting upon the gas spring, the control device comprises; at least one valve device attached to the first seat frame part and having control valves for actuating gas flows for the gas spring; and at least one drag lever associated with the at least one valve device; and a control link provided on a second seat frame part for actuating the control valves by adjusting position of an associated one of the at least one drag lever, so that a predefinable height of the vehicle seat is ensured regardless of a weight load on the vehicle seat; and an adjustment device for adjusting the control link by relative movement with respect to the second seat frame part independently of a relative position between the seat frame parts, movement of the control link relative to the second seat frame part causes a height adjustment of the vehicle seat, wherein the control link is rotatably arranged solely on a center axle of a scissors-type frame, the scissors-type frame have at least two scissor arms, wherein the control link is formed at least in some sections as a cam disc with control paths having arc-shaped circumference sections with different radii in at least some sections, wherein the at least one drag lever comprises a plurality of levers, each lever maintains contact with a respective one of the arc-shaped circumference sections. - View Dependent Claims (17)
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Specification