JPS602069B2 - Inner blade of rotary electric shaver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inner cutter body for a rotary electric shaver in which the inner cutter itself has spring properties.

The inner cutter body of a conventional rotary electric shaver is made by inserting a plurality of T-shaped inner cutters into the insertion holes of the inner cutter base, and using a push-up 1 which also serves as a protrusion prevention unit and is fixed to the inner cutter base. The inner blade is fixed with imitation to form the inner blade body. Therefore, it is complicated to attach and detach the inner cutter when replacing the inner cutter when it is worn out, and a separate push-up spring is required, making assembly and adjustment troublesome. Conventionally, the lower part of the inner cutter was extended and bent into a U-shape to give it elasticity, and the U-shaped part was supported in the support hole of the inner cutter base, and a push-up spring was integrated. It is being

However, this inner cutter body has the disadvantage that the rotation of the inner cutter generates wind, which scatters beard shavings, staining the surroundings, and harming the human body by being inhaled. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an inner cutter body for a rotary electric shaver that allows easy replacement and assembly adjustment of the inner cutter and does not generate wind.

An embodiment of the invention is shown in FIGS. 1 and 2. That is, A is an inner cutter in which the upper part of a metal hollow frame plate a is made thick and the other part is made thin so as to have a self-spring property, and a W-shaped part 2 is protruded in the center of the lower part, and B is an inner cutter. A molded product in which a plurality of iron insertion holes b of pongee width are formed radially from the W-shaped part 2, which has reverse tapered parts 3, 3 due to undercuts during molding on both lower sides and a support shaft 4 in the center. The W-shaped part 2 of the inner cutter A is removably inserted into each bale insertion hole b, and the support part (center part of the W-shaped part 2) 5 is attached to the support shaft 4. The inner cutter is supported by the inverse tapered portions 3, 3 to prevent it from coming off and fixed. D is an outer cutter body in which an outer cutter g is fixed to the upper edge of an outer cutter frame d, and e is a drive rod. In this way, the inner cutter A is integrally formed with a metal hollow frame plate and the inner cutter itself has elasticity, so the inner cutter can be attached and detached from the inner cutter base without the need for a separate push-up spring. can be supported and fixed,
The inner cutter body can be easily assembled and disassembled, and the inner cutter can be easily replaced when worn, and wind generation due to the rotation of the inner cutter is reduced, thereby preventing scattering of hair chips. As described above, according to the present invention, there is provided an inner blade in which the upper part of the metal hollow frame plate is a thick blade part, the basin part is made thinner to have elasticity, and a W-shaped part is protruded in the center of the lower part; An iron insertion hole with a narrower width than the W-shaped part is formed, and a support shaft is formed at the center of the lower side of the iron insertion hole, with which the center part of the W-shaped part engages, and furthermore, W is formed on both sides of the lower side of the iron insertion hole.
Since it is equipped with an inner cutter base that has a reverse tapered part that engages with both sides of the shape part, a separate push-up spring is not required, reducing the man-hours for manufacturing the inner cutter, and making it easier to attach and detach the inner cutter. is easy,
An inner blade body whose inner blade can be easily replaced can be obtained at a low cost.
Furthermore, there is an effect that no wind is generated even when the inner cutter for the hollow metal frame plate rotates. The manufacturing man-hours for the inner cutter can be reduced, and the inner cutter can be easily attached and detached, and the inner cutter can be easily replaced at a low cost. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an embodiment of the present invention when assembled, and FIG. 2 is an exploded perspective view of its main parts.

A...Inner blade, 1...Blade part, 2...W-shaped part, 3...Reverse taper part, B...Inner blade base, b...Iron insertion hole, 4 ...'The pivot. Figure 1 Figure 2

Claims (1)

[Claims] 1 The upper part of the metal hollow frame plate is a thick-walled blade part, the other part is thin-walled to have elasticity, and the inner blade has a W-shaped part protruding in the center of the lower part, and a fitting with a narrower width than the W-shaped part. In addition to forming an insertion hole, a support shaft is formed in which the center portion of the W-shaped portion engages with the lower center of the insertion hole, and both sides of the W-shaped portion engage with both sides of the lower side of the insertion hole. An inner blade body of a rotary electric shaver, comprising an inner blade base having a tapered part.