Knife of sandwich structure and personal care hair shear with same

Abstract

The invention provides a knife of a sandwich structure. The knife comprises two fixed knife bodies and a movable knife body sandwiched between the two fixed knife bodies. A row of comb teeth are arranged at the front end edge of each fixed knife body, and the inner surface, making contact with the movable knife body, of each comb tooth and the side edge of the comb tooth form a sharp corner. A row of knife teeth with knife edges are arranged at the front end edge of the movable knife body. The front end edges of the two fixed knife bodies are overlapped, and the front end edge of the movable knife body is sandwiched between the front end edges of the two fixed knife bodies and is not exposed out of the front end edges of the fixed knife bodies. The movable knife body can be driven to make the front end edge of the movable knife body move horizontally left and right relative to the front end edges of the two fixed knife bodies to achieve shearing. The knife can improve safety and shearing efficiency.

Description

technical field [0001] The invention relates to the technical field of personal care products, in particular to a knife with a sandwich structure consisting of two fixed knives and a moving knife, and a personal care hair scissor using the knife. Background technique [0002] Traditional personal care hair clippers, such as: electric clippers, electric shavers, etc., are composed of a cutter head and a blade body. The main part of the cutter head is a fixed knife and a moving knife that overlap each other; There is a row of knife teeth, and the left and right sides of each knife tooth are blades; the front edge of the fixed knife is provided with a row of comb teeth, and the inner surface of each comb tooth in contact with the moving knife forms a sharp angle with the side of the comb tooth. The front edges of the moving knife and the fixed knife are superimposed, and the moving knife is driven by the driving part protruding from the knife body, so that the front edge of the...

AI Technical Summary

Problems solved by technology

[0003] However, since the moving knife, especially the teeth on the front edge of the moving knife are exposed or partially exposed, the user is easily injured, or it may bring psychological fear to the user.

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