VEHICLE SEAT, IN PARTICULAR COMMERCIAL VEHICLE SEAT
First Claim
1. A vehicle seat comprising a scissors-type stand that can vibrate in the principal direction of vibrations and which scissors-type stand comprises:
- a top frame;
two first rocker arms and two second rocker arms that intersect in pairs at a scissor axis extending in a transverse seat direction;
a transverse tube, the first two rocker arms being connected with one another at one end via the transverse tube extending in the transverse seat direction;
a bearing mechanism, the transverse tube being pivotably mounted on the top frame by the bearing mechanism;
a pivoting means for vibrating the top frame relative to the transverse tube in a longitudinal seat direction, wherein horizontal vibrations of the top frame in the longitudinal seat direction are undamped by the pivoting means in the case of minor deflections and are damped by the bearing mechanism in case of major deflections.
8 Assignments
0 Petitions
Accused Products
Abstract
A vehicle seat, particularly a commercial-vehicle seat is provided with a scissor-type stand (3) which is able to vibrate and which is provided with a top frame (7), two first rocker arms (8a) and two second rocker arms (8b), which intersect in pairs at a scissor axis (10) extending in a transverse seat direction (y). The first two rocker arms (8a) are connected with one another at one end via a transverse tube (18) which extends in the transverse seat direction (y) and are pivotably mounted on the top frame (7) and able to vibrate in the longitudinal seat direction (x) via a bearing mechanism (20). The transverse tube (18) can be locked with the top frame (7) via at least one locking device (31).
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Citations
20 Claims
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1. A vehicle seat comprising a scissors-type stand that can vibrate in the principal direction of vibrations and which scissors-type stand comprises:
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a top frame; two first rocker arms and two second rocker arms that intersect in pairs at a scissor axis extending in a transverse seat direction; a transverse tube, the first two rocker arms being connected with one another at one end via the transverse tube extending in the transverse seat direction; a bearing mechanism, the transverse tube being pivotably mounted on the top frame by the bearing mechanism; a pivoting means for vibrating the top frame relative to the transverse tube in a longitudinal seat direction, wherein horizontal vibrations of the top frame in the longitudinal seat direction are undamped by the pivoting means in the case of minor deflections and are damped by the bearing mechanism in case of major deflections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A vehicle seat comprising a scissors-type stand that can move in a principal direction of vibration of the scissors-type stand, the scissors-type stand comprising:
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a top frame; two first rocker arms; two second rocker arms each of the first rocker arms being connected to one of the second rocker arms to form two rocker arm pairs, each with a scissor axis extending in a transverse seat direction; a transverse tube, the first two rocker arms being connected with one another at one end by the transverse tube extending in the transverse seat direction; a bearing mechanism, the transverse tube being pivotably mounted on the top frame by the bearing mechanism; a pivoting means for movement of the top frame relative to the transverse tube in the a longitudinal seat direction, the bearing mechanism including damping structure that allows undamped horizontal movement of the top frame relative to the transverse tube within a defined movement range and dampens horizontal movement of the top frame relative to the transverse tube for horizontal movement larger than the defined movement range. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A vehicle seat comprising a scissors-type stand that can move in a principal direction of vibration of the scissors-type stand, the scissors-type stand comprising:
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a top frame; two first rocker arms; two second rocker arms each of the first rocker arms being connected to one of the second rocker arms to form two rocker arm pairs, each with a scissor axis extending in a transverse seat direction; a transverse tube with a bearing roller, the first two rocker arms being connected with one another at one end by the transverse tube extending in the transverse seat direction; a bearing mechanism connected to the top frame; a pivoting means for movement of the top frame being relative to the transverse tube in the a longitudinal seat direction, the bearing mechanism including a guide with a guideway receiving the bearing roller and including damping structure that allows undamped horizontal movement of the transverse tube relative to bearing mechanism within a defined movement range and dampens horizontal movement of transverse tube relative to bearing mechanism for horizontal movement larger than the defined movement range.
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Specification