Seat for self-propelled narrow-track vehicle
First Claim
1. An assembly for installation in a self-propelled vehicle having a seat anchorage and a seat pan removably attached to the seat anchorage, said assembly comprising:
- a base plate structure for attachment to the seat anchorage of the vehicle after removal of the seat pan from the seat anchorage,a seat support means for receiving the seat pan at an upper side of the seat support means after removal of the seat pan from the seat anchorage, the seat support means having a lower side opposite its upper side,an interconnect member fixed to the lower side of the seat support means and extending therefrom,a pivot connecting a lower end of said interconnect member to the base plate structure and allowing angular movement of the seat support means relative to the base plate structure,a mechanism effective between the base plate structure and the seat support means to change the angular position of the seat support means relative to the base plate structure about the pivot,a tilt sensor which automatically provides an output signal in response to tilting of the seat support means from a horizontal position, andprocessing circuitry responsive to said signal to operate said mechanism and restore the seat support means to a horizontal position,whereby the assembly can be installed in the vehicle as a self-contained unit, independent of other mechanisms of the vehicle, by removing the seat pan, attaching the base plate structure to the seat anchorage and attaching the seat pan to the seat support means.
1 Assignment
0 Petitions
Accused Products
Abstract
A low aspect self-propelled vehicle (1) operated by a driver (4) sitting on top of it, has its seat (7) supported from beneath by a flange (12) which is pivoted to tilt about a horizontal axis (15) in the mid-vertical plane of the vehicle. The spacing between the axis (15) and the seat (7) is sufficient to ensure that when the seat is tilted about the axis by operation of a tilt control mechanism (21), the center of seat also displaces a significant extent in the uphill direction of the slope. This reduces the downhill movement of the center-of-gravity (10) of the combination of vehicle plus driver, so that the risk of the vehicle toppling is reduced.
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Citations
20 Claims
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1. An assembly for installation in a self-propelled vehicle having a seat anchorage and a seat pan removably attached to the seat anchorage, said assembly comprising:
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a base plate structure for attachment to the seat anchorage of the vehicle after removal of the seat pan from the seat anchorage, a seat support means for receiving the seat pan at an upper side of the seat support means after removal of the seat pan from the seat anchorage, the seat support means having a lower side opposite its upper side, an interconnect member fixed to the lower side of the seat support means and extending therefrom, a pivot connecting a lower end of said interconnect member to the base plate structure and allowing angular movement of the seat support means relative to the base plate structure, a mechanism effective between the base plate structure and the seat support means to change the angular position of the seat support means relative to the base plate structure about the pivot, a tilt sensor which automatically provides an output signal in response to tilting of the seat support means from a horizontal position, and processing circuitry responsive to said signal to operate said mechanism and restore the seat support means to a horizontal position, whereby the assembly can be installed in the vehicle as a self-contained unit, independent of other mechanisms of the vehicle, by removing the seat pan, attaching the base plate structure to the seat anchorage and attaching the seat pan to the seat support means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A self-propelled vehicle having a seat anchorage, a seat pan and a seat mounting assembly comprising:
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a base plate structure removably attached to the seat anchorage of the vehicle, a seat support means which detachably receives the seat pan at an upper side of the seat support means, the seat support means having a lower side opposite its upper side, an interconnect member fixed to the lower side of the seat support means and extending therefrom, a pivot connecting a lower end of said interconnect member to the base plate structure and allowing angular movement of the seat support means relative to the base plate structure, a mechanism effective between the base plate structure and the seat support means to change the angular position of the seat support means relative to the base plate structure about the pivot, a tilt sensor which automatically provides an output signal in response to tilting of the seat support means from a horizontal position, and processing circuitry responsive to said signal to operate said mechanism and restore the seat support means to a horizontal position, and wherein the seat mounting assembly can be removed from the vehicle as a self-contained unit, independent of other mechanisms of the vehicle, and the seat pan can be detached from the seat support means and attached to the seat anchorage in place of the base plate structure. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification