JPS6029983Y2 - electric razor - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric shaver that uses flexible rectangular outer cutters stretched in an arch shape, and specifically relates to the structure of the outer cutters.

This type of electric shaver is, for example, a reciprocating electric shaver, as shown in FIG. The rib portion 52.52 extending to the outer blade 5
3, and by forming a large number of slits 54 in each of the rib parts 52, the rib parts 52, 52
Then, raise the long hair that lies down and insert it into the slit 54.
A method has been proposed in which the shearing is caused by trapping.

However, in the above configuration, since the rib portions 52 and 52 extend linearly in the reciprocating direction of the inner cutter body 51, if the electric shaver is not moved vertically and horizontally during shearing, hair will be trapped in the slits 54. Hard to get.

Furthermore, since both ends 52a and 52b of each rib portion 52 are open, hair waste is forced to blow out from these ends 52a and 52b.

Furthermore, if both ends 52a and 52b of each of the rib portions 52 have an open structure, the rib portions 52 and 52 are likely to be expanded by the push-up blade of the inner blade body 51 subjected to a spring force, and the rib portions 52 and 52 are likely to be expanded excessively. Then, as shown in FIG. 8, the inner bent edge portion 55
There is a risk that the blade may hit against the cutting edge portion 51a of the inner blade body 51, and the cutting edge portion 51a may be damaged.

Therefore, this invention provides an electric shaver in which a flexible rectangular flat plate-shaped outer cutter 3 is stretched in an arch shape, and an inner cutter body 10 is slid on the inner surface of the electric shaver. A plurality of annular rib portions 14, 14□ arranged in parallel along
, 14□ are straddled from the top of the outer cutter 3 to the hem portions on both sides so that the distance between adjacent annular rib portions 14 is closest to each other at the top of the outer cutter 3 in the stretched state, and they are separated from each other at the hem portion. This rib portion 14 is formed integrally with a
By forming a slit, the change in the distance between adjacent annular ribs is narrowed toward the top of the arch, which narrows the skin and raises it, and also causes the cutting edge of the inner blade to By making sliding contact with the annular rib portion in a gradual manner, damage to the cutting edge portion due to bumping is prevented, and the above-mentioned conventional drawbacks are avoided.

An embodiment of this invention will be described below with reference to the drawings.

Fig. 1 shows an example of a reciprocating electric shaver to which the electric shaver of this invention is applied. This outer cutter holder 2 has an outer cutter 3 stretched over it.

Reference numeral 4 denotes a motor steered within the main body case 1, and an eccentric shaft 6 is fixed to a rotating shaft 5 of the motor 4.

Reference numeral 7 denotes a vibrator that is driven by the eccentric shaft 6 via a lever 8. A drive rod 7a is protruded from the upper surface of the vibrator 7, and an inner blade holder 9 is attached to the tip of the drive rod 7a. It is connected.

Reference numeral 10 designates an inner cutter body formed by supporting a large number of inner cutter blades 11 in a skewered manner with a pipe 12 or the like.
It is pressed against the inner surface of the outer cutter 3 under the force of a spring, and is reciprocated in the direction of the arrow atb under the rotational force of the motor 4.

As shown in FIG. 2, the outer cutter 3 is molded into a rectangular shape from a flexible metal plate by etching, press processing, electroforming, etc., and is attached to an outer cutter holder as shown in FIG. 2 is stretched in an arch shape.

The outer cutter 3 has a plurality of annular rib portions 14, 14, 14, 14, . 14° is integrally formed.

Reference numeral 15 denotes a slit formed to intersect each of the annular rib portions 14 .

Reference numeral 16 denotes a small hole formed in approximately the zone of the outer cutter 3, 17 an auxiliary plate of the outer cutter 3, and 18 a locking piece for attaching the outer cutter.

In the electric shaver having the above configuration, the annular rib portion 14 formed at the top of the outer cutter 3 extending in an arch shape reinforces the top portion that easily comes into contact with the skin, and the annular rib portion 14 and the slit 15 are This combination eliminates the direction of introduction of long hair, in other words, the long hair can be effectively inserted into the slit 15 without moving the electric razor vertically and horizontally during shearing.
will be captured.

Furthermore, since the rib portion 14 is annular, not only is the conventional problem of hair blowing out solved, but the rib portion 14 is not expanded by the push-up blade of the inner cutter body 10. The risk of damage to the inner edge portion is also eliminated.

By the way, the plurality of annular rib portions 14 having a diameter of 1□,
14. , 14° means that when the outer cutter 3 is stretched in an arch shape, the distance between adjacent rib parts is closest at 1° at the top of the curved part of the arch, and the distance between the adjacent rib parts is the closest at the bottom part of the arch. By integrally forming the outer cutter 3 from the top to the hem on both sides so that the distance is 1° apart, when the outer cutter 3 is pressed against the skin and rubbed, the hem part with a wide gap between the ribs is created. The skin is narrowed from the top to the narrowest apex, and the hair-raising effect can be enhanced accordingly.

Furthermore, if the diameter dimension 11 of each rib portion 14 and the distance between both rib portions 14 are set to have a difference of 1°, the tension of the skin M is stronger at the portion 11 as shown in FIG. For example, short hair can be effectively captured in the 1□ area.

Moreover, in a reciprocating electric shaver, if there is a changing region of the outer blade, such as the rib-like protrusion, in a direction perpendicular to the reciprocating direction of the inner blade body 10, the blade tip may be caught and damaged. Since it becomes narrower from the hem to the top, damage caused by bumping can be prevented.

5 and 6 show other embodiments, in which the rhombus-shaped annular rib 1
A plurality of numbers 4 are arranged at the top.

In this case, the annular septum H1 and crane are arranged so as to face the top, and the skin is squeezed along the annular ridge line that gradually narrows at an angle of 0 to raise curly hair and lying hair, and the annular septum H1 and the crane are arranged at the approach part. The hair is cut through the long holes.

For this purpose, a slit 15 is provided near the annular rib 14 in the S□ region, and the slit 15 is provided on the outer side thereof.

, there is a part S that gradually becomes smaller toward the outside and approaches
It is preferable that the small holes 16 are arranged in a wave-like manner so as to protrude from the top.

Although the above embodiment is explained using a reciprocating electric shaver as an example, the same effect can be achieved with a rotary type electric shaver in which a roll-shaped inner cutter body with spiral blades is slid onto an outer cutter. .

As described above, by forming an annular rib on the top of the arched outer cutter, this invention not only improves the ability to capture long and curly hair, but also prevents hair from blowing out and prevents the inner cutter from blowing out. It is possible to provide an electric shaver that can also prevent damage.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the head of an example of the electric shaver according to this invention, Fig. 2 is a perspective view of the outer blade of the electric shaver, and Fig.
The figure is a perspective view of the outer blade holder stretched in an arch shape.
Figure 4 is an explanatory diagram of the set interval of the annular rib part of the same outer cutter, Figure 5
6 and 6 are explanatory diagrams of other embodiments, and FIGS. 7 and 8 are explanatory diagrams of a conventional example. 3... Outer cutter, 10... Inner cutter body, 14°41 14°... Annular rib portion.

Claims (1)

[Scope of utility model registration request] In an electric shaver in which a flexible rectangular flat plate-shaped outer cutter 3 is stretched in an arch shape, and an inner cutter body 10 is slid on the inner surface thereof, the inner cutter body 10 is arranged in parallel along the axial direction of the inner cutter body 10. The plurality of annular rib portions 14, 14□, 14° are arranged so that the distance between adjacent annular rib portions 14 is the closest at the top of the stretched outer cutter 3 and is separated at the hem. The electric shaver is integrally formed so as to extend from the top part to the hem parts on both sides, and a slit is formed in the rib part 14.