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Cutter and hair trimmer with sandwich structure

A sandwich type, tool technology, applied in metal processing and other directions, can solve the problems of user's vulnerability and user's influence, and achieve the effect of prolonging service life, reducing overall weight and reducing the probability of injury

Active Publication Date: 2021-04-09
SPECIALIFE ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the movable blade, especially the teeth on the front edge of the movable blade is exposed, or partially exposed to the operator, the user is easily injured, or the user may be psychologically affected.

Method used

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  • Cutter and hair trimmer with sandwich structure
  • Cutter and hair trimmer with sandwich structure
  • Cutter and hair trimmer with sandwich structure

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0060] According to the first embodiment of the present invention, such as image 3 , which shows the movable blade M1 of the knife according to the first embodiment of the present invention; Figure 4 shows as image 3 Enlarged view of part I of the movable blade shown.

[0061] The movable blade M1 of the knife according to the first embodiment of the present invention is integral, and its front end has a row of teeth, and each tooth has a quadrilateral cross-sectional shape, which includes a first pair of sides FPS1 parallel to each other and The first pair of sides FPS1 forms a second pair of sides SPS1 of four acute angles. The first pair of side edges FPS1 is in contact with the two fixed blades, and forms four acute angle cutting edges CE (cutting edges) on the cross section with the two fixed blades, that is, the first cutting edge CE1, the second cutting edge Edge CE2, third cutting edge CE3, and fourth cutting edge CE4. Wherein, each side of the second pair of si...

no. 2 approach

[0063] According to the second embodiment of the present invention, such as Figure 5 , which shows a movable blade M2 ​​of a knife according to a second embodiment of the present invention; Figure 6 shows as Figure 5 Enlarged view of part II of the movable blade shown.

[0064] The movable blade M2 ​​of the knife according to the second embodiment of the present invention is integral, and its front end has a row of teeth, and each tooth has a quadrilateral cross-sectional shape, which includes a first pair of sides FPS2 parallel to each other and The first pair of sides FPS2 forms a second pair of sides SPS2 of four acute angles. The first pair of side edges FPS2 are in contact with the two stationary blades and form four acute shearing edges in cross-section with the two stationary blades. Wherein, each side of the second pair of sides SPS2 has a plurality of arc-shaped recesses, similar to waves, Figure 5 and 6 2 schematically shows a limited number of crests and tr...

no. 3 approach

[0066] According to the third embodiment of the present invention, such as Figure 7 , which shows two stationary blades F3 of a knife according to a third embodiment of the present invention; Figure 8 shows as Figure 7 Side view of part III of the fixed blade F3 shown; Figure 9 is like Figure 7 Enlarged view of section III of the stationary blade F3 shown.

[0067] The two fixed blades of the knife according to the third embodiment of the present invention, that is, the first fixed blade FF3 and the second fixed blade SF3 each have a front end of a row of teeth. Wherein, there is a gap in the middle of the two fixed blades after being assembled into a cutter, which can be used to sandwich the movable blade, and the inner surface of the first fixed blade FF3 and the inner surface of the second fixed blade SF3 are in contact with the movable blade to cut hair . Both sides of the tooth front end of each tooth have rounded corners to prevent the user's skin from being sc...

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Abstract

The invention discloses a cutter and a hair trimmer with a sandwich structure, wherein the cutter comprises: two fixed blades, each of which has a row of teeth at its front end; and a movable blade, which is sandwiched between two fixed Between the blades, and can reciprocate relative to the two fixed blades in the length direction of the movable blade, the movable blade is integrated, wherein the front end of the movable blade has a row of teeth, and the front end of the teeth of the movable blade is not Exposed from the teeth front ends of the fixed blade, each tooth of the movable blade has a quadrilateral cross-sectional shape including a first pair of sides parallel to each other and a second pair of sides forming four acute angles with the first pair of sides. The cutter and the hair trimmer of the present invention can reduce the probability of user's injury and have high cutting efficiency.

Description

technical field [0001] The invention relates to the technical field of care products, in particular to a cutter with a sandwich structure and a hair trimmer using the cutter. Background technique [0002] Traditional personal care hair clippers, such as electric clippers, electric shavers, etc., generally consist of a cutter, a knife holder and a hand-held part. Knives generally include fixed blades and movable blades that overlap each other; the front edge of the movable blade is provided with a row of teeth, and the left and right sides of each tooth are blades; the front edge of the fixed blade is provided with a row of teeth, each The inner surface of the knife tooth in contact with the movable blade forms a sharp angle with the side of the comb; the front edge of the movable blade and the fixed blade are superimposed, and the movable blade is driven by the driving part in the knife holder, so that the movable The blade translates left and right relative to the fixed bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26B19/06
CPCB26B19/063B26B19/06B26B19/102B26B19/3846B26B19/3893B26B19/12
Inventor 刘东欣
Owner SPECIALIFE ZHUHAI
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