Nondeforming band tape hub

A technology of wheel hub and tape measure, applied in the direction of bendable ruler, etc., can solve the problems of radial deformation and distortion, large pre-tightening force of coil spring rewinding, affecting normal use, etc., to prevent radial distortion and deformation, increase blocking force, The effect of prolonging the service life
CN101021405AInactive Publication Date: 2007-08-22NINGBO HONGDI MEASURING TAPE IND CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO HONGDI MEASURING TAPE IND CO LTD
Publication Date
2007-08-22
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

A tapeline wheel hub is not easy to deform which includes the wheel hub seat and the cover. The seat includes the wafer and the cylinder sheet which is vertical to the wafer. The wheel hub cover covers on the end of the cylinder sheet which is also set with at least two axis heave part. The holes opened on the wheel hub cover are inserted by the heave part. Compared to the present technology, the heave part is added to the cylinder sheet to intensify the location lock. So when the wheel hub suppresses the big spring coiling tensile, it can prevent it deform to prolong its life.
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Description

technical field

[0001] The invention relates to a tape measure winding device, in particular to a tape measure wheel hub which is not easily deformed. Background technique

[0002] Because of its small size and easy to carry, the tape measure has become one of the necessary tools for workers in many industries as an easy-to-carry measuring tool.

[0003] Existing tape measures generally include a ruler box, a hub and a tape wound on the hub, wherein the hub is a winding device for the tape measure, and the tape can automatically retract under the restoring force of the coil spring built in the hub. Usually, the hub is composed of a hub cover and a hub seat. During the manufacturing process, the coil spring needs to be placed in the cavity of the hub seat in advance, and then fixed in the hub seat by fastening the hub cover. Therefore, in the hub seat Generally, there will be a positioning piece for buckling the hubcap on the edge, and the positioning piece can pass through ...

Claims

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