JPS6012511Y2 - electric razor - Google Patents

Description

[Detailed description of the invention] This invention relates to an electric shaver in which a flexible rectangular outer cutter is stretched in an arch shape and an inner cutter body slides on the inner surface of the outer cutter, and more specifically, it relates to the structure of the outer cutter. It is.

This type of electric shaver, for example, a reciprocating electric shaver, has a protrusion extending from one end to the other end in the axial direction of the inner cutter body 51, in other words, in the reciprocating direction (direction of arrows a and b), as shown in FIG. 52° 52 is formed as a bulge on the surface of the outer cutter 53, and a large number of slits 54 are formed across each of the protrusions 52, thereby mainly aiming at improving the ability to capture long hair. has been done.

By the way, when using this type of razor, the razor is moved in a direction perpendicular to the reciprocating power direction of the inner blade body 51 by pressing the rotten material against the outer blade 53 which is stretched in an arch shape. The long hair must be trapped inside.

However, with the above configuration, even if the long hairs are erected at the boundary between the protrusions 52, 52 and other areas,
During the shearing operation of moving the razor, the slit 54 crosses the protrusion 52 while the long hair remains raised.
There is no guarantee that the protrusion 52 will be introduced into the hair, and on the contrary, since the protrusion 52 is perpendicular to the operating direction, there is a strong possibility that it will act as a barrier and cause most of the hair to lie down again. There are few.

Furthermore, since each of the protrusions 52 has an open structure at both ends,
If it is pressed against the skin, it may expand and deform as shown in FIG.
Only the blade 2a hits the cutting edge 51a of the inner blade 51, causing uneven wear.

This invention was made in order to eliminate the above-mentioned drawbacks, and includes ribs and first slits oriented in a direction perpendicular to the axial direction of the inner cutter body, and a large number of second slits arranged in parallel along these. The purpose of the present invention is to provide an electric shaver that can increase the ability to capture long hair and protect the blade body.

In FIG. 1, 1 is a main body case made of synthetic resin, etc., 2 is an outer blade holder fitted to the upper end of the main body case 1,
An outer cutter 3 is stretched over this outer cutter holder 2.

Reference numeral 4 denotes a motor housed 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 connected to 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. is concatenated.

Reference numeral 10 denotes 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 spring force of
The rotational force of the motor 4 is transmitted to the inner cutter body 10 via the vibrator 7, so that the inner cutter body 10 is reciprocated in the directions of arrows a and b.

The outer cutter 3 is flexible and is formed into a rectangular shape as shown in FIG. 2 by a press drilling method, an etching method, an electroforming method, or the like.

As shown in an enlarged view in FIG. 3, the surface of the outer cutter 3 includes both end portions of the inner cutter body 10 in a direction perpendicular to the axial direction, that is, both end portions in a direction perpendicular to the reciprocating direction (direction of arrow C). First slits 14 and ribs 15 facing in a direction crossing the axial direction are alternately arranged along the axial direction.

Of course, the orientation of the first slit and the rib 15 may be orthogonal to the axial direction, or the intersecting angle thereof may be arbitrarily selected.

Reference numeral 16 denotes second slits arranged in parallel along the above-mentioned axial direction, and the arrangement position of this slit 16 is in line with the above-mentioned rib 15.
and is set near the inner side where the first slit 14 is provided.

17 is a large number of cutting edge small holes, 18 is a reinforcing plate, and 19 is a locking piece.

In the above configuration, when the outer blade 3 is pressed against the skin and sheared, the skin becomes stretched between each of the circular protrusions 15, and in other words, the long hair lying prone is raised in this area.

This is because the ribs 15 are oriented in a direction perpendicular to the axial direction (reciprocating direction) of the inner cutter body 10, so that they are retained as they are even by the shearing operation and captured in the first slit 14.

Moreover, during the shearing operation, each of the ribs 15 acts as a comb for the long hair, so that the long hair is aligned in the direction of the shearing operation and easily enters the slit 14.

Furthermore, since the second slit 16 is formed adjacent to the first slit 14 and the region where the ribs 15 are formed, the hair that is not captured by the first slit 14 can also be transferred to the second slit 16. can be captured reliably.

Further, even when the outer cutter 3 is pressed against the skin, the rib 15 does not have an open end structure like a conventional protrusion, so
There is no expansion deformation, and therefore, good adhesion with the cutting edge of the inner cutter body 10 can be maintained.

Although the above embodiment has been explained using a reciprocating electric shaver as an example, the outer cutter 3 can also be applied to a so-called rotary type razor in which a rolled inner cutter having a spiral cutter is rotated. Of course.

As described above, in this invention, ribs and first slits oriented in a direction crossing the axial direction of the inner cutter body are alternately arranged on the surface of the outer cutter along the above-mentioned axial direction. With a simple configuration in which the slits are arranged in parallel along the axial direction, it is possible to provide an electric shaver that improves the ability to capture long hair and improves the adhesion between the outer cutter and the inner cutter.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the head of an electric shaver according to this invention, Fig. 2 is a perspective view showing the outer blade of the electric shaver in a state before tensioning, and Fig. 3 is a main part of the outer cutter. 4 and 5 are explanatory diagrams of a conventional example. 3... Outer blade, 10... Inner blade body, 14.
...First slit, 15 ...Rib, 1
6... Second slit.

Claims (1)

[Scope of utility model registration request] In an electric shaver in which a flexible outer cutter 3 is stretched in an arch shape and an inner cutter body 10 is slid on the inner surface thereof, a direction perpendicular to the axial direction of the inner cutter body 10 on the surface of the outer cutter 3 is used. The ribs 15 and the first slits 14 are alternately formed along the axial direction, and the ribs 15 and the first slits 14 are formed alternately along the axial direction.
An electric shaver in which a large number of second slits 16 facing in the above-mentioned intersecting direction are arranged in parallel along the above-mentioned axial direction adjacent to the formation site of the slit 14.