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Seat height and tilt adjustment apparatus and method

An adjustment device and a technology for adjusting the inclination angle, which can be used in movable seats, vehicle seats, transportation and packaging, etc., and can solve problems such as the inability to adjust the inclination angle of the seat

Inactive Publication Date: 2009-07-29
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the device disclosed by Le requires the operator to turn two different knobs to adjust the height of the seat, but not the inclination of the seat

Method used

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  • Seat height and tilt adjustment apparatus and method
  • Seat height and tilt adjustment apparatus and method
  • Seat height and tilt adjustment apparatus and method

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Experimental program
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Embodiment Construction

[0015] FIG. 1 shows an adjustment device 10 for adjusting the height and inclination of a seat 14 . As shown in FIG. 1 , the adjustment device may be mounted in the cab 12 portion of the machine such that it is sandwiched directly or indirectly between the floor of the cab 12 and the seat 14 .

[0016] The adjustment device 10 is mountable between two structures 16 and is operable to independently adjust the distance between the structures 16 and the inclination of the structures 16 relative to each other. As shown in FIG. 2, the first structure 16a may include a platform 18 for mounting the seat 14, and the second structure 16b may include a base 20, which may, for example, be the floor of the cab 12 or be sandwiched between such a floor. The structure between the adjusting device 10 and the adjusting device 10 serves the purpose of, for example, damping vibration or providing the seat 14 with a minimum elevation angle.

[0017] Referring to FIG. 2 , the adjustment device 10...

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PUM

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Abstract

The present invention relates to a seat height and tilt adjustment apparatus and method. The seat height and tilt adjustment apparatus includes first and second arms mounted between two structures. The first arm is pivotally attached to the first structure at the first pivot axis, and pivotally attached to the second structure. The second arm is pivotally attached to the first structure at a second pivot axis and pivotally attached to second structure. A linkage is pivotally attached to the first structure at a third pivot axis and pivotally attached to the first arm. A first actuator adjusts the distance between the two structures by simultaneously varying the distance between the first and second pivot axes and the distance between the first and third pivot axes. A second actuator varies the tilt of one structure relative to the other structure by varying the distance between the first and third pivot axes, while maintaining a constant distance between the first and second pivot axes.

Description

technical field [0001] The present invention relates generally to a seat, and more particularly to an apparatus and method for adjusting the height and inclination of the seat. Background technique [0002] Machinery such as skid-steer loaders, multi-terrain loaders, backhoe loaders, farm tractors, track-type tractors, articulated trucks, wheel loaders, off-road vehicles, dump trucks and other types of construction machinery, mining machinery and Agricultural machinery is used for a variety of tasks that require operator control. Typically, the operator sits in a seat on the machines while controlling the machines. During operation of such machinery, it is often necessary to adjust the height and inclination of the seat to increase operator comfort or visibility. [0003] Various mechanisms have been developed to raise and recline the seat. For example, US Patent Application No. 11 / 246,514 to Le et al. ("Le") discloses a device for adjusting the height and inclination of ...

Claims

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Application Information

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IPC IPC(8): B60N2/16B60N2/22
CPCB60N2/1853B60N2/181B60N2/161B60N2/1846B60N2/164
Inventor L·E·约克D·L·阿甘
Owner CATERPILLAR INC