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Rotary knife and method for manufacturing rotary knife

A technology of rotating knife and rotating direction, applied in metal processing and other directions, can solve the problems of the rotating knife lacking water stirring ability, unable to completely remove the attachments, unable to rotate the shaft to stir water, etc., to simplify the structure, increase the water flow, improve the The effect of removing the function

Inactive Publication Date: 2015-07-29
MAXELL HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the rotary blades of Patent Document 1 to Patent Document 3, the water can be stirred by the cutting blade, but the water cannot be stirred by the rotating shaft supporting the cutting blade.
That is, each of the above-mentioned rotary knives lacks the stirring ability of water and cannot generate a strong water flow, so it is impossible to completely remove the deposits attached to the rotary knives.

Method used

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  • Rotary knife and method for manufacturing rotary knife
  • Rotary knife and method for manufacturing rotary knife
  • Rotary knife and method for manufacturing rotary knife

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Figure 1 to Figure 10 Embodiment 1 of the rotary knife of this invention is shown. exist figure 1 and figure 2 Among them, the rotary blade 1 is composed of a rotary shaft body 2 and a cylindrical cutting blade 3 fixed on the rotary shaft body 2 . The rotating shaft body 2 is composed of a shaft main body 4, five supporting discs 5a and four water flow generating discs 5b which are pressed and fixed on the shaft main body. The supporting discs 5a and the water flow generating discs 5b are alternately arranged along the rotation axis direction.

[0094] The shaft main body 4 is a round shaft-shaped martensitic stainless steel material. The support disk 5 a is formed in a disk shape by punching a plate made of austenitic stainless steel material, and a charging hole 7 through which the shaft main body 4 is inserted is formed at the center thereof. Such as image 3 As shown, the peripheral surface of the supporting disk 5a becomes the blade supporting surface 9 for...

Embodiment 2

[0125] Figure 11 ~ Figure 13 A second embodiment in which the structure of the rotating shaft body 2 is different is shown. Here, a water flow generating portion 8 and a blade supporting surface 9 are formed on each of the five discs 5 press-fitted and fixed to the shaft main body 4 . Specifically, water flow generating portions 8 made of V-shaped slits are formed at equal intervals at three positions on the peripheral surface of the disk 5, and the peripheral surface sandwiched by the water flow generating portions 8, 8 is used as a knife supporting surface 9. . That is, the disk 5 of this embodiment has both the functions of the supporting disk 5a and the water flow generating disk 5b of the first embodiment above. The disk 5 can be manufactured by the same method as the water flow generating disk 5b of the first embodiment above.

[0126] Such as Figure 13 As shown, the water flow generation part 8 is shifted in phase in the circumferential direction with respect to t...

Embodiment 3

[0128] Figure 14 and Figure 15 It shows the third embodiment in which the structure of the rotating shaft body 2 is different. The rotary shaft body 2 here is constituted by a turned product made of stainless steel (made of metal) integrally provided with the shaft main body 4 , the supporting disc 5 a and the water flow generating disc 5 b. However, the water flow generating portion 8 of the water flow generating disk 5b is formed by broaching. A concave curved surface 46 concaved toward the center of rotation is formed on the peripheral surface of the shaft main body 4 between the adjacent supporting disk 5a and the water flow generating disk 5b.

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Abstract

The invention provides a rotating knife and a method for manufacturing the same, which enable the attachments to be removed effectively when a washing of water rotation drive is carried out. The rotating knife comprises a cutting knife (3) of which the cross-section is bent into an arc-shape and a rotating shaft body (2) supporting the cutting knife. The rotating shaft body possesses a shaft main body (4) and a plurality of disks (5) arranged in the rotating shaft direction. The cutting knife is fixed on the circumferential surfaces of the disks, a wate flow generating part (8) is formed on at least part of the disks, and is composed of kerfs formed at the peripheral parts of the disks, or penetrating holes penetrating the disks, etc. By enabling the water flow to impact with the inner surface of the cutting knife and the rotating shaft body, the attachments attached on the inner surface of the cutting knife and the rotating shaft body can be removed effectively; and because the water flow is generated from the interior of the cutting knife, the attachments attached on the inner surface of the cutting knife and the rotating shaft body can be removed effectively.

Description

technical field [0001] The present invention relates to a rotary blade applied to an inner blade of a rotary electric shaver, and a method for manufacturing the rotary blade. Background technique [0002] As far as the structure of this inner knife (rotary knife) is concerned, there are known a main shaft, a pair of left and right discs fixed on the main shaft, two cutting knives supported by the discs movable in the radial direction, and an outward knife. An inner blade made of a spring that pushes the cutting blade and energizes it (Patent Document 1). [0003] In addition, there is known an inner blade in which a thin plate-shaped inner blade body is formed by an etching method or an electroforming method, and the inner blade body is wound around the peripheral surface of a round rod-shaped inner blade support shaft and fixed by bonding (Patent Document 2). . Rib-shaped blades inclined with respect to the rotation center of the inner blade support shaft are formed at re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26B19/16
Inventor 岩仓幸太郎渡利佑吾
Owner MAXELL HLDG LTD
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