Ratchet wheel with protection and identification layers and manufacturing method thereof

Abstract

The invention provided a ratchet wheel with protection and identification layers and a manufacturing method thereof. A comprehensive protection coating and a localized identification coating can be mainly formed on the surface of the ratchet wheel by two electroplating processes. The protection coating has a high bonding force (or adhesion) with the ratchet wheel and is not prone to falling off, and the abrasion resistance, oxidation resistance and surface gloss of the ratchet wheel are improved. The identification electroplated layer plays a role for the user to visually identify the ratchetwheel, and the specification and size of the ratchet wheel or a ratchet wrench are determined by the color of the identification electroplated layer.

Description

technical field [0001] The invention relates to a method for manufacturing a protection structure and an identification structure of a ratchet wheel of a wrench. Background technique [0002] Electroplating of a specific color is made on all or part of the surface of hand tools (such as wrenches) or their components (such as sockets or ratchets), the main purpose of which is to facilitate users to quickly and accurately identify the specifications of tools or components ( Metric, Imperial), size, and can be correctly placed in the tool slot or component slot prepared by the tool box. [0003] The invention patent I424907 of Taiwan, China discloses a process technology for partially realizing a distinguishable electroplating layer on a ratchet wheel. The first way is to wrap the ratchet tooth surface of the ratchet with insulation and then electroplate it. After the electroplating is completed, the ratchet side of the ratchet does not have electroplating, while the other su...

AI Technical Summary

Problems solved by technology

[0005] 1. The electroplating layer only involves the change of the local surface color of the ratchet, which is decorative or recognizable. According to the current electroplating process, such a coating is easy to fall off

[0006] 2. The decorative coating cannot be fully implemented on the entire surface of the ratchet assembly of the ratchet wrench, which may lead to a decrease in the meshing force of the ratchet assembly, or the problem of the coating falling off and the teeth stuck

[0007] 3. In the ratchet tooth surface and angle groove surface of the ratchet, the two main stress-bearing parts, the previous technology has not done any surface protection treatment, and these two places are extremely prone to wear

The worn corner groove surface causes friction, obstruction and unsmoothness when the ratchet is combined with the tool head or workpiece

The worn ratchet surface will cause major problems such as jumping teeth when operating under force, or failure of the ratchet reversing function.

[0008] 4. The technology of the previous case is complicated, but its effect is only to form a color coating at both ends of the ratchet, but it hides the above-mentioned multiple problems

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