JPH04121864U - Outer blade for electric razor - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an outer blade for an electric shaver that can be easily processed and has good slippage with the skin without increasing the film thickness. [Structure] Using the substrate 1 on which the nickel layer 4 is electrodeposited as an anode, electrolysis is performed in a solution such as phosphoric acid or sulfuric acid. At this time, the outer surfaces of the substrate 1 and the nickel layer 4 are corroded and unevenness is formed, but by adjusting the masking interval of the convex parts, the current value during electrolysis, the immersion time of the base material, etc. Smooth unevenness 5 with good sliding properties is formed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an outer blade for an electric shaver.

0002

[Conventional technology]

Traditionally, the outer blades of electric razors have been surface-treated to improve sharpness. It is. For example, in Japanese Patent Application Laid-Open No. 63-5785, nickel is coated on a nickel layer. - The outer blade is shown with a cobalt layer electrodeposited and a nickel chloride layer electrodeposited. However, such surface treatment layers have problems with durability such as wear and tear caused by long-term use. ing. In order to improve durability performance, it is possible to increase the thickness of the surface treatment layer. If the film thickness is too thick, you may not be able to get a close shave, or the flexibility of the outer blade itself may decrease, causing irritation to the skin. A problem arises in that the adhesion between the two surfaces deteriorates.

0003

[Problem that the idea aims to solve]

The present invention was developed in view of these points, and it is possible to thicken the film through simple processing. We provide outer blades for electric razors that have good gliding on the skin and reduce wear. It is something that

0004

[Means to solve the problem]

The present invention uses electrolysis to corrode the surface of the outer cutter to form irregularities. Also convex The masking interval, the current value during electrolysis, the immersion time of the outer blade base material, etc. By adjusting, smooth unevenness can be formed. After this, form the surface treatment layer. By doing this, unevenness is formed that makes it smooth against the skin.

[0005]

[Effect]

According to the present invention, the surface of the outer blade is corroded by electrolysis to form unevenness. , through simple processing, the contact area with the skin is reduced without increasing the film thickness, making it less slippery. A sharp outer edge can be obtained. As a result, wear is reduced and durability is improved.

[0006]

【Example】

Embodiments of the present invention will be described in detail below with reference to the drawings.

[0007] The outer blade for an electric shaver of the present invention is manufactured by the following procedure.

[0008] A nonconductor 2 is baked on a copper substrate 1, leaving a portion that will later become the beard introduction hole 3. (See Figure 1a).

[0009] A nickel layer 4 is primarily electrodeposited on the surface of the nonconductor 2. The thickness of this nickel layer 4 If the size is about 50 μm, the toughness will be high (see FIG. 1b).

0010 The substrate 1 on which the nickel layer 4 is electrodeposited is used as an anode in a solution such as phosphoric acid or sulfuric acid. Perform electrolysis. At this time, the outer surfaces of the substrate 1 and nickel layer 4 corrode, forming unevenness. However, the masking interval of the convex part, the current value during electrolysis, or the immersion of the base material By adjusting the soaking time, etc., smooth unevenness 5 that slides well against the skin can be formed. (see Figure 1c).

[0011] A hard surface treatment layer 6 made of a nickel-cobalt alloy is secondarily electrodeposited (Fig. 1d).

0012 The substrate 1 and the nonconductor 2 are peeled off from the outer blade material 7 formed as described above. By doing so, the outer cutter 8 having the hair introduction hole 3 and the unevenness 5 is completed. (See Figure 1e) (see).

[0013]

[Effect of the idea]

According to the present invention, the surface of the outer blade is corroded by electrolysis to form unevenness. , through simple processing, the contact area with the skin is reduced without increasing the film thickness, making it less slippery. A sharp outer edge can be obtained. As a result, wear is reduced, durability is improved, and skin The frictional resistance between the skin and the skin is reduced, reducing skin roughness and irritation.

[Brief explanation of drawings]

FIGS. 1A to 1E are diagrams showing a patterning process, a primary electrodeposition process, an electrolytic process, a secondary electrodeposition process, and a peeling process, respectively, of an outer blade for an electric shaver.

[Explanation of symbols] 1 board 2 Nonconductor 3 Beard introduction hole 4 Nickel layer 5 Unevenness 6 Surface treatment layer 7 Outer blade material 8 Outer blade

Claims (1)

[Scope of utility model registration request] 1. An outer blade for an electric shaver, the outer blade of which is characterized by having irregularities formed on its surface by electrolysis.