A rotary razor blade and a razor head provided with the blade

Abstract

A rotating razor blade comprises a blade body (1) and an inner shaver ring on the blade body. The inner shaver ring comprises at least one inner-ring shaver (2). The inner-ring shaver is perpendicular to the radial direction of the blade body and the head of the inner-ring shaver inclines upward. The blade body has a groove (11) formed after the inner-ring shaver is disposed. The inner-ring shaver is disposed with a strengthening structure for enhancing the connection strength of the inner-ring shaver. A stress releasing structure for preventing stress concentration on the blade body is disposed inside the groove. The razor blade has a simple structure and can be easily manufactured. The strength of the blade and the shaver is increased, so the shearing force is reduced, and the sharpness is enhanced. A razor head disposed with the above blade ensures that hair enters easily and shaving is thorough, and achieves a better effect of fitting the face during shaving to prevent skin injuries.

Description

technical field [0001] The invention relates to a razor, in particular to a rotary razor blade and a razor head provided with the blade. Background technique [0002] Among the multi-ring floating rotary razor heads currently on the market, one of them is cut from raw materials as a whole, and the knife is bent upwards so that the knife foot becomes a "U" shape to obtain the number of knife rings, forming two concentric The other is a circular knife ring; the other is assembled by spot welding of separate tools with different force arms, and multiple concentric rings with different force arms are obtained. [0003] The advantages of the above two structures are: 1. The first type of razor head moving knife is cut from a single piece of material with high positioning accuracy and does not require a lot of assembly, which saves manufacturing cost, time and labor. 2. The second type of razor head has a plurality of knives that are individually bent and formed, and the blade st...

AI Technical Summary

Problems solved by technology

[0004] But it also has the following disadvantages: 1. The cutter of the first type of razor head obtains two concentric rings due to one bending, so the concentricity of the two concentric rings of the cutter is difficult to control and is easy to deform

2. The second type of razor head is composed of multiple knives, and multiple knives are assembled by spot welding, which requires a lot of assembly work, and it is difficult to guarantee the assembly accuracy. At the same time, it also increases the weight and current

[0005] The applicant submitted an application on August 7, 2009 and was authorized by the announcement on March 24, 2010, for a utility model patent named "Multi-ring floating cloud rotary shaver head component", the announcement number is 201427317, The utility model patent specification discloses a multi-ring floating rotary razor head component, including a moving knife and a fixed knife, the moving knife is composed of a moving blade and a moving knife seat, and the moving blade includes a blade that continuously cuts the same sheet. Knives made from blanks whose moment arms are obtained by bending upwards or upwards and outwards to at least one ring of knife rings, and knives formed from continuously cut blanks of the same sheet whose moment arms are obtained by bending downwards and upwards At least one knife ring is obtained, in which the moment arms of blade A and blade C are directly bent upward, and the moment arm of blade B is first bent downward and then upward, and the strength of the moment arm of blade C is not as strong as that of blade B The strength of the force arm, during use, due to the different structures of the blade B and the blade C, the degree of wear of the two is also different, and the blade B is often damaged first

In addition, the force arm of blade A is directly bent, and a longer force arm is needed to reach a certain bending height, so the strength of the force arm of blade A is relatively reduced.

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