Belt adjustment mechanism, and belt hoist and load binder with the belt adjustment mechanism

Abstract

Movement of a belt adjustment mechanism in which the length of a tension section of an adjustment side belt (12) can be adjusted based on drive operation of an operation lever (15) and a motor is made more reliable and safe. The adjustment side belt (12) is pressed by a pressing belt (14) to the outer peripheral surface of a drive roller (11) of a base (16) for drive. A base (17) for tension and a base (18) for pressing are slideable relative to the base (16) for drive. The base (17) for tension has an installation shaft (17a)(or a fixation hook) for a fixed side belt (13) and has a tension roller (17b). The base (18) for pressing has a pressing roller (18c) and guide rollers (18a, 18b). In a balanced state under a load (F), because the base (16) for drive and the tension roller (17b) relatively slide to cause the pressing belt (14) to be tensioned, the adjustment side belt (12) is stably pressed to the drive roller (11) by the pressing belt. The belt adjustment mechanism is adapted for use in a belt hoist, belt load binder, etc.

Description

technical field [0001] The present invention relates to a belt adjustment mechanism applicable to a belt hoist, a belt hoist, and the like, and in particular to a belt capable of reliably and safely adjusting the length of the tensioned portion of the belt when a load acts adjustment mechanism, etc. In addition, the belt hoist can also be used in fields such as nursing care. [0002] In general, belt hoists and belt loaders must be able to reliably and safely drive the adjustment side belts used for hoisting, tightening luggage, engineering products, and other various work objects in a tensioned state. The present invention is a response to such a request. [0003] The operation of the adjustment mechanism of the belt tensioner on the adjustment side is the same for both the belt hoist and the belt hoist. Background technique [0004] The belt adjustment mechanism proposed by the applicant of the present application (refer to the patent document described later) has the t...

AI Technical Summary

Problems solved by technology

[0009] (11) If the belt on the adjustment side is pressed and held in a state balanced with the load F by the drive roller to the load direction, etc., the pinch roller presses the belt on the adjustment side strongly against the drive roller, and the balance between the two sides The rollers are shifted in the state of clenching, so it is very difficult to turn the driving rollers and send them out in the direction of the load.

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