Improvements in or relating to fork lift trucks

A forklift and wheel technology, applied in the field of height measurement system, can solve problems such as high cost, time-consuming, and system cannot be applied

Inactive Publication Date: 2006-05-10
詹姆斯·伦纳德·贝克特
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many cases, this can only be achieved by grinding the ground after it has been built, which is time-consuming and costly
[0007] Known systems also include systems for determining the height of stationary forklifts and keeping them stable, but these systems cannot be applied to dynamic moving conditions

Method used

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  • Improvements in or relating to fork lift trucks
  • Improvements in or relating to fork lift trucks
  • Improvements in or relating to fork lift trucks

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] Referring to Figures 1A and 1B, a conventional forklift assembly is shown supported on wheels 1. The chassis is a rigid structure, and the wheels are not equipped with suspension devices. The fork 2 can be raised together with the mast 3 of the forklift to reach a higher position.

[0030] figure 2 It is a simplified plan view of the chassis 3 of a forklift according to one embodiment of the present invention. A plurality of sensors 4 are fastened to the chassis and are able to derive the height difference between the front and rear axles 6 and 7 . Furthermore, a sensor 5 is fastened to the chassis axle 6 between the right and left wheel tracks in order to be able to derive the height difference between the front wheels 1 .

[0031] Figure 3 is a view of the support arm supporting the front wheel of the forklift. The front wheels 1 are supported on the cantilever 8, and the cantilever 8 is fixed to the chassis of the forklift truck through the pivot bearing 9, so th...

example 2

[0037] In another embodiment as shown in FIGS. 4A and 4B , the lift truck is provided with a memory unit in which data corresponding to changes in the roughness of the road surface to be traveled can be stored. When the forklift is traveling on such a route, the forklift is automatically raised hydraulically to compensate for changes in levelness by sending a signal from the memory to the hydraulic pistons that connect the front wheel unit of the forklift to the body of the vehicle. Together. In this way, even when traveling on a surface with varying degrees of flatness relative to the horizontal plane, the forklift truck can still transport loads along the route safely and stably, for example in a corridor between two racking units.

[0038] In this embodiment, the forklift has two special components, namely: an electronic profiler capable of recording surface irregularities and an active suspension unit which can be operated with suitable algorithms, to compensate for surfa...

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PUM

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Abstract

A fork lift truck for moving a load, comprising a load bearing member ( 3 ) for carrying the load, wherein the truck comprises means ( 4, 5, 15, 19 ) for adjusting the vertical axis of the load bearing member to maintain it substantially parallel to the axis of gravitational pull on the load, when the truck travels along a surface having varying degrees of flatness or deviance from horizontal.

Description

field of invention [0001] The invention relates to the field of forklifts or forklifts. More specifically, the present invention relates to a height measurement system for use on a forklift that enables control of the verticality of the mast despite the unevenness of the surface on which the forklift travels. Background technique [0002] Forklifts are commonly used in warehouses to move loads from one location to another. These loads are usually stored on high racks, and in the case of higher densities, these locations generally consist of racks that are closely spaced from each other in order to maximize storage space and that are able to Up to 15 meters or more. A forklift is used to access a position within a rack and is provided with a mast capable of reaching a maximum height to store and retrieve goods and equipment usually stored on pallets. In many cases, the operator of the forklift will move with the forklift to different height positions for easy picking. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F9/075B60G17/015B66F17/00
CPCB60G2200/322B60G2204/46B60G2300/022B60G2400/61B60G2400/82B60G2800/019B66F9/07586B66F9/14B66F17/003B66F9/075
Inventor 詹姆斯·伦纳德·贝克特
Owner 詹姆斯·伦纳德·贝克特
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