JPS6148390B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an outer blade of an electric shaver.

The outer cutter body of conventional electric razors consists of an outer cutter and an outer cutter frame that holds the outer cutter. No consideration has been taken to prevent this, and the cut hair chips that have entered the inside of the outer cutter are blown away to the outer periphery of the outer cutter by the rotational centrifugal force of the inner cutter. In this case, if a slit is provided on the outer edge of the outer cutter for introducing long beards or curly beards,
There was a problem in that the hair scraps cut from the hair introduction slit were scattered outside. Additionally, the amount of beard debris that falls and accumulates in the beard debris reservoir increases as the number of times you shave increases. There is a problem in that the particles try to escape, collect on the outer edge of the outer cutter, and fall out from the slit for introducing the hair. This problem became more apparent when the outer peripheral edge of the outer cutter was made to protrude and a three-dimensional slit was formed across this protrusion.

Therefore, an object of the present invention is to provide an outer cutter body for an electric shaver that can reduce the scattering and falling of beard shavings.

An embodiment of the invention is shown in FIGS. 1 and 2. That is, the outer cutter body A of this rotary electric shaver has a protrusion 1a on the outer peripheral edge.
On the inside of the outer cutter 1 of the outer cutter frame 2, which holds and fixes the outer peripheral edge of the outer cutter 1, which has a large number of slits 1b for introducing whiskers formed therein so as to cross the outer cutter 1, a crosspiece 1c between the large number of slits 1b is provided. Correspondingly, by erecting a comb-shaped wall 2a so as not to block the slit 1b and providing a space 3 between the outer cutter 1 and the outer cutter frame 2, a beard waste reservoir 4 is formed. It is designed to be separated from the outer cutter 1. In this case, the comb-shaped wall 2a is erected at a position where the inner cutter body B does not collide with the inner cutter body B when the inner cutter body B rotates, and which is closest to the inner cutter body B.
The upper end comes into contact with the outer peripheral edge of the outer cutter 1 to reinforce the outer cutter 1.

The outer cutter frame 2 is provided with a male threaded portion 6 for screwing into the female threaded portion 5 of the razor body C.

On the other hand, the inner blade B of the rotary electric shaver has a third
As shown in the figure, the inner cutter 8 is attached to the upper surface of the inner cutter frame 7.
is attached so that the inner cutter 8 is brought into elastic contact with the inner surface of the outer cutter 1. The inner cutter frame 7 has a motor shaft mounting recess 7a formed in the center of the back surface, and three slits 7b parallel to the radial direction. One end of the lifting spring 9 is fixed by a pin 10, and the other end faces the lower side of the slit 7b. This push-up spring 9 is formed by cutting two grooves 9a and 9b in the longitudinal direction from the other end side to form three pieces 9c to 9b.
9e, the inner piece 9c is narrow, the outer piece 9e is wider, and the inner cutter frame 7
The groove 9a on the center side is long enough to reach the other end, and the groove 9b on the outside is shorter than that to provide a difference in the spring characteristics of each piece 9c to 9e. Inner blade 8
is inserted into the slit 7b, and forms a square hole 8a in the center of its lower end into which the central piece 9d of the push-up spring 9 fits, and has notches 8b, 8 of the same depth on both sides of the square hole 8a.
c is formed to lock the remaining pieces 9c and 9e, and the inner cutter 8 is held between the center piece 9d and the remaining pieces 9c and 9e, and the upper edge of the blade is in elastic contact with the outer cutter 1.

In the shaving operation, the inner cutter frame 7 is rotated by the operation of a motor (not shown), the inner cutter 8 slides on the inner surface of the outer cutter 1, and the outer cutter hole 1e and slit 1c are removed.
Cut off the hair that has invaded. The cut hair scraps fall from the periphery of the inner cutter frame 7 and the slit 7b to the hair scrap collection part 4, and the hair scraps passing through the slit 7b fall on the surface of the push-up spring 9 and then fall into the hair scrap collection part 4. Note that 10 is a motor output shaft, and 11 is a joint.

In this way, the outer cutter body A of the rotary electric shaver of this embodiment has a comb-shaped wall 2a built up inside the outer cutter 1 of the outer cutter frame 2 so as to correspond to the crosspiece 1c between the slits 1b. The space 3 is created between the outer cutter 1 and the outer cutter frame 2 by this wall 2a, and the shavings collection part 4 and the outer cutter 1 are separated. Even if the hair chips that have entered are blown outward by the centrifugal force of the inner cutter 8, the hair chips hit the wall 2a and fall into the hair scraps reservoir 4, and even if they fly out from the gap in the wall 2a, the outer cutter 1 crosspiece 1
c and accumulates in the space 3, so that scattering of the outer cutter 1 to the outside can be reduced. Furthermore, even if the blade is tilted or turned upside down during shaving, the wall 2a prevents it from falling, thereby reducing the amount of beard shavings falling to the outside. Furthermore, the wall 2a is made into a comb-like shape, and a slit 2 is formed in a portion corresponding to the slit 1b.
b is provided, it is possible to introduce the hair into the slit 1b and guide it to the cutting edge 1d on the outer blade center side of the slit 1b without disturbing the hair.

Note that the present invention can also be applied to the outer blade of a reciprocating electric shaver.

As described above, the outer cutter body of the electric shaver of the present invention includes an outer cutter in which a protrusion is provided at the outer edge and a large number of hair introduction slits are formed across the protrusion, and an outer edge of the outer cutter. The outer cutter frame is equipped with an outer cutter frame that holds and fixes the outer cutter, and a comb-shaped wall that stands upright inside the outer cutter of the outer cutter frame and separates the outer cutter from the beard waste collection part, so that the beard shavings can be collected easily. can reduce scattering and falling.

[Brief explanation of the drawing]

FIG. 1 is a half-sectional side view of an embodiment of the present invention.
FIG. 2 is an enlarged perspective view of the main part, and FIG. 3 is a back view of the inner blade. 1...Outer blade, 1a...Protrusion, 1b...Slit, 1
c... Crosspiece, 2... Outer blade frame, 2a... Wall, 2b...
slit, 3...space, 4...beard debris reservoir.

Claims (1)

[Claims] 1. An outer cutter having a protrusion on its outer edge and a number of slits for introducing whiskers across the protrusion, and an outer cutter frame that holds and fixes the outer edge of the outer cutter. , an outer cutter body of an electric shaver, comprising a comb-shaped wall that stands upright inside the outer cutter of the outer cutter frame and separates the outer cutter from a beard waste collection section. 2. Claim 1, wherein the slit portion of the comb-shaped wall is arranged in correspondence with the slit for introducing the whiskers.
The outer blade of the electric shaver described in Section 1.