JPH043994B2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) The present invention relates to an outer blade for a rotary electric razor.

(Background Art) Conventionally, various improvements have been made to the outer blade of rotary electric razors to make it easier to catch long hair. For example, in the case of Utility Model Publication No. 53-21265, in which a recess is formed in the center and long holes are arranged from the slope of the recess, hairs longer than the outer diameter of the recess will not fall into the recess. The disadvantage is that the hair is not introduced into the outer blade, making it difficult to shave long hair quickly. In addition, as another conventional example, as in Utility Model Publication No. 48-19357, the outer blade has a double structure of inner and outer parts, with a slit formed on the outside and a small hole formed on the inside. Since the hair is on the outside, when the blade head is applied to the skin, the skin comes into contact only with the net outer blade that has the small holes on the inside, and hair is not easily introduced into the outer blade around the periphery.

(Object of the Invention) The present invention has been proposed in view of the above points, and its object is to provide a second outer cutter having a three-dimensional slit hole in the center of a first outer cutter having a substantially dome shape.
To provide an outer blade of a rotary electric razor that efficiently introduces and cuts long hair by arranging an outer blade part.

(Disclosure of the Invention) The present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention,
The outer cutter 3 attached to the upper end of the main body 1 via the outer cutter frame 2 includes a substantially dome-shaped first outer cutter portion 4 having a large number of small holes 4a, and this first outer cutter portion 4.
fixed to the central part of, and provided with a plurality of radial three-dimensional slit holes 5a extending from the top surface to the side surfaces,
The second outer cutter section 5 has a smaller diameter than the first outer cutter section 4. Further, as shown in FIG. 2, a motor 6 is housed inside the main body 1, and an inner cutter base 7 is attached to the motor shaft 6a, and a push-up spring 9 is attached to the inner cutter base 7. A plurality of inner blades 8 are attached via the inner blades 8, and the inner blades 8 are pressed against the inner surfaces of the first and second outer blades 4, 5.

As shown in the figure, the second outer cutter part 5 is fixed to the inner peripheral surface of the first outer cutter part 4 by a method such as welding so as to protrude upwardly than the first outer cutter part 4, and A pair of slit holes 5a in the outer cutter portion 5 of No. 2 are arranged so that a pair of slit holes 5a are separated by 180 degrees when viewed from above, and are positioned facing each other, that is, on a straight line.

According to this embodiment, even very long hair H as shown in FIG.
It is introduced into the inside of the second outer cutter part 5 through the slit hole 5a, and can be cut by the inner cutter blade 8. In addition, in FIG. 3, S indicates the skin.

Next, FIGS. 4 and 5 show a second embodiment of the present invention. In this embodiment, a second outer cutter section 10 having a cantilever structure as shown below is formed in the center of a first outer cutter section 4 having a substantially dome shape formed in the same manner as in the first embodiment. It is characterized by the fact that the outer cutter 11 is constructed with the same structure. That is, one end of the second outer cutter part 10 is fixed to the inner peripheral edge of the center of the first outer cutter part 4, and the other end divided through the slit hole 10a is a free end near the center. It is composed of a plurality of comb-like blades 10b.

In this embodiment, the substantially comb-shaped second outer cutter 10 can further increase the hair-raising effect, and even when the hair H is long as shown in FIG. By introducing it inside, it becomes possible to cut efficiently by the inner cutter blade 8.

Next, FIGS. 6 to 8 show a third embodiment of the present invention. In this embodiment, the outer blade 1
2 is composed of a substantially dome-shaped first outer cutter part 4 having a small hole 4a, and a similarly dome-shaped second outer cutter part 13 formed one step higher in the center of this outer cutter part 4. Ru. More specifically, the second outer cutter section 13 is integrally formed with the first outer cutter section 4, and has a plurality of three-dimensional slit holes 13a extending from the top surface to the side surface.
and a plurality of small holes 13b bored inside these slit holes 13a. Note that FIG. 7 is a cross-sectional view of an electric razor using this outer cutter 12, and the same members as those in the previous embodiment are given the same reference numerals and explanations will be omitted.

According to this embodiment, the roots of the long hairs H are introduced into the inner surface of the second outer cutter 13 as shown in FIG. This makes it possible to cut long hair H near the center of the outer blade 12, where there are many chances of contact with the skin S. In addition, the second outer blade part 1
By making the curvature of the top surface of the first outer cutter 3 smaller than that of the first outer cutter 4, the first outer cutter near the second outer cutter 13 is
The small holes 4a, 4 make it easier for the skin S to come into contact with the small holes 4a' of the outer blade part 4, making short hairs even shorter.
The function of a′ is now fully demonstrated.

(Effects of the Invention) As described above, according to the present invention, in a rotary electric razor in which the inner cutter rotates while slidingly contacting the inner surface of the outer cutter, a nearly dome-shaped razor with a large number of small holes for introducing hairs is provided. A first outer cutter part, and a plurality of three-dimensional slit holes extending from the top surface to the side surface and extending from the top surface to the side surface, protruding from a substantially central part of the first outer cutter part. The present invention is suitable for use as an electric razor for cutting unwanted hair on women, especially in areas where it is difficult to shave, such as underarms. is also valid.

In other words, when used on areas that cannot be seen such as the armpits, the first outer cutter is dome-shaped and the second outer cutter protrudes from the center, making it easier to fit under the armpits than in the cited example. In addition, since the second outer cutter with the slit is provided in the center, the three-dimensional slit in the center naturally hits easily.
This three-dimensional slit can surely cut long hair, and then the outer blade on the outer periphery can be used to finish shaving short and neatly, and it has the effect of surely cutting off long hair that is easy to shave off and is unsightly because it stands out when left unshaved.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a cross-sectional view of the electric razor, FIG. 3 is an operation explanatory diagram, and FIGS. FIG. 5 shows the second embodiment of the present invention, and the fourth embodiment shows the second embodiment of the present invention.
The figure is a perspective view, FIG. 5 is an explanatory diagram of the operation, and FIGS.
The figure is a perspective view, FIG. 7 is a sectional view of the electric razor, and FIG. 8 is an explanatory diagram of the operation. 3, 11, 12... Outer blade, 4, 5, 10, 13
...Outer blade part, 4a...Small hole, 5a, 10a, 13
a...Slit hole, 8...Inner blade.

Claims (1)

[Scope of Claims] 1. In the outer blade of a rotary electric razor in which the inner blade rotates while slidingly contacting the inner surface of the outer blade, the first outer blade is approximately dome-shaped and has a large number of small holes for introducing hair. The first outer cutter has a plurality of three-dimensional slit holes extending from the top surface to the side surface, protruding from the center of the first outer cutter, and having a diameter smaller than that of the first outer cutter. 2. An outer blade of a rotary electric razor, characterized in that the outer blade is comprised of: 2. The rotary electric machine according to claim 1, wherein the slit hole of the second outer cutter is disposed at a position facing the center of the second outer cutter when viewed from above. The outer blade of a razor. 3. The second outer cutter part is composed of a plurality of comb-shaped blades divided through slit holes, and when one end of each of these comb-shaped blades is viewed from a plane, approximately the length of the second outer cutter part is The outer blade of a rotary electric razor according to claim 1, wherein the outer blade is formed as a free end at the center. 4. The outer blade of a rotary electric razor according to claim 1, wherein the second outer cutter has a dome shape and is formed integrally with the first outer cutter. 5. The outer blade of a rotary electric razor according to claim 4, wherein the curvature of the top surface of the second outer cutter portion is smaller than the curvature of the top surface of the first outer cutter portion.