Rope with spiral tooth

Abstract

A cable with spiral teeth includes a core rope (4) having a recess groove (8) spirally continuous in the longitudinal direction, a resin covering layer (5a) installed on the outer periphery of the body (2) of the cable, a spiral strip (S) having a winding filament (3) and being installed with a resin covering layer (5B) on a linear core material, thereby increasing the relative frictional coefficient and the engagement power between the rope (4) and the resin covering layer (5A), the core material and the resin covering layer (5B), and the resin covering layers (5A)(5B), particularly increasing the accuracy of operation. The cable with spiral teeth is characterized in that the resin covering layer (5A) of the rope body (2) is consisted of a resin containing a metal fiber or a resin containing a metal oxide fiber, the resin covering layer (5B) of the filament (3) is consisted of a thermoplastic resin or elasticized resin, the rope body (2) is made of a material same as the core material contained in the resin covering layer (5A), and any of the resin covering layers (5A)(5B) of the rope body (2) and the filament (3) is consisted of a same resin material.

Description

technical field [0001] The present invention relates to a "cable with helical teeth" for moving a movable member with high precision and silently in an image reading device such as a carriage of a printer or a scanner. Background technique [0002] Japanese Patent No. 3263387 (claims, figure 1 , figure 2 ) discloses a cable with helical teeth, "a cable is formed by covering a resin layer on a steel wire rope as a core material, and a spiral bar formed by winding a linear body is provided on the outer periphery of the cable main body. The body is formed after the core material is provided with a resin covering layer", which is characterized by "arranging a continuous spiral groove along the length direction of the rope, and using the groove as a fixing part when covering the resin", or "in the rope An adsorption layer of hard particulate matter is provided on the outer periphery of the adsorption layer, and a resin covering layer is arranged on the outer periphery of the a...

AI Technical Summary

Problems solved by technology

[0004] However, when the structure of Japanese Patent No. 3263387 is adopted, due to the above-mentioned large transmission force, the "delicate relationship between the different materials between the cable main body and the helical tooth resin coating layer" should cause sliding stress and shear stress on the mutual joint surface. ", and "the delicate relationship between the steel wire rope of the cable main body and the resin covering layer, which transmits the external force of the helical teeth to the steel wire rope as the core material through its own resin coating", does not work, so "external force caused The relative sliding and relative movement of the cable will cause the movable member on the driven side to move, and the stop position error will be caused due to the poor accuracy of the action amount of the cable main body, which will lead to the slave movement of the image reading device. stop error of the moving member, thereby compromising the image reading accuracy

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