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Adjustable span tine pallet jack

A pallet truck and fork technology, which is applied in the field of adjustable-spacing fork pallet trucks, can solve the problems of returning trouble, increasing complexity, etc.

Pending Publication Date: 2021-10-01
REHRIG PACIFIC CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This allows the load wheel to roll, but adds complexity as the operator needs a lot of free space to do this adjustment and not only needs to move the equipment, but also needs to adjust it at the same time
The required amount of space is unlikely to exist in the rear of the trailer, and it would be a hassle to remove the loader from the trailer to make adjustments on the road and then return for the product

Method used

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  • Adjustable span tine pallet jack
  • Adjustable span tine pallet jack
  • Adjustable span tine pallet jack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] exist figure 1 A pallet jack 10 is shown in FIG. The pallet jack 10 includes a lift module or base 12 containing a lift mechanism and tine clearance actuator 15 . The base 12 is connected to a pair of tines 14 . The base 12 can raise and lower the tines in a known manner by applying leverage to the load wheels 16 supporting the tines 14, such as by hydraulics, pneumatics, electric motors or via manual actuators. The base 12 may also move the tines toward and away from each other with a tine backlash actuator 15, which may be a hydraulic device driving a ball screw or screw, a pneumatic device, a pneumatic device, or via a manual actuator. electric motor.

[0032] The pallet jack mechanism may be semi-electric (such as an electric drive system and manual lift (via a quick shake handle arm)) or fully electric (such as an electric drive system and electric lift / lower). In this example, the truck is semi-electric or fully electric, so whether the actuator is an electro-...

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PUM

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Abstract

A pallet jack includes a base and a pair of tines extending from the base. The pair of tines including a first tine and a second tine. A load wheel supports an outer end of each of the pair of tines. Each load wheel is configured to move toward and away from the respective tine to raise the tine off a floor on which the load wheel is supported. The first tine including a support surface configured to selectively be a lowermost surface of the tine to facilitate lateral displacement of the first tine.

Description

Background technique [0001] Methods and mechanisms currently exist on the market to allow for inward or outward adjustment of tines on manual pallet jacks. Adjustable tine clearance gives the truck compatibility for a wide variety of pallet sizes. This currently exists in manual adjustments on hand pallet jacks (eg bolting and unbolting, hand crank). [0002] Similar tine adjustments are also used in fork lifts, where pins on the frame are used to manually adjust the position of the forks. However, on a pallet jack this cannot be achieved without the adjusted adjustable pitch tines being removed first. Adjustable spacing tines will wear the load wheel under the tines due to dragging the load wheel sideways when making adjustments, or due to the large amount of space required to move the unit back and forth. The load wheels below the tines are typically only wheels that rotate forward or backward (ie, not castor wheels with swivel motion). Sideways movement of the adjustabl...

Claims

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Application Information

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IPC IPC(8): B62B3/06
CPCB62B3/06B62B2203/24B62B2301/02B62B2206/04B62B3/0625B62B2203/10B62B2203/20B66F7/0641B66F9/12B62B3/0612B62B3/0618
Inventor D·G·M·卡利诺夫斯基
Owner REHRIG PACIFIC CO INC