JPH05317536A - Rotary electric razor - Google Patents

Abstract

PURPOSE:To realize the certainty of raising long hair and naturally curly hair, and leading in and cutting them. CONSTITUTION:On one inside surface of an arch-like outer blade 20 having many hair leading-in holes 25, a cylinder-like rotary inner blade 2 is brought into slide-contact and rotated in the prescribed direction around a shaft 14. This razor has a cylinder-like raising rotating body 3 provided adjacently and in parallel to the upper part side in the rotational direction of the rotary inner blade 2. This raising rotating body 3 rotates around a shaft 16 by interlocking with a rotation of the rotary inner blade 2. This razor has a long hair/naturally curly hair leading-in plate 21 arranged adjacently and in parallel to the outer blade 20. This long hair/naturally curly hair leading-in plate 21 is extended and provided like an arch so that the raising rotating body 3 comes into slide- contact with the inside surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary electric shaver having a cylindrical inner blade, and more particularly to long hair and curly hair which are easily shaved.

[0002]

2. Description of the Related Art For example, an electric razor having a reciprocating inner blade and a rotating inner blade is used to shave the arched or dome-shaped outer blade itself with long hair that has become long due to shaving or left curly hair. Providing a convex rib or an elongated hole to facilitate the operation is known, for example, from Japanese Utility Model Laid-Open No. 58-143673.

[0003]

However, since the arch-shaped or dome-shaped outer blade is provided with a hair introducing hole for cutting an original short hair in the central portion which is most in contact with the skin, long hair or curly hair is generated. The convex ribs and the long holes are unevenly provided at the outer ends of the hair introducing hole regions. The location where such a convex rib or slot is provided is a location where it is difficult to contact the skin of the outer blade, and because it is provided in a limited effective area of the outer blade, the slot area of the slot is restricted and narrow. Therefore, the contact area with the skin is small. For this reason, at present, the function of raising long hair or curly hair is not satisfactorily performed, and it takes too much time to catch and cut long hair or curly hair. Therefore, in the rotary electric shaver, if the arched outer blade itself is provided with the above-mentioned long ribs or the convex ribs or the long holes for raising the curly bristles, the same problem still occurs.

Therefore, an object of the present invention is to raise the hair of a rotary electric shaver in which a cylindrical rotary inner blade slidably rotates about an axis with respect to an inner surface of an arch-shaped outer blade for shaving. As a result, by adding a long hair / curly hair introduction plate and a rotating body for raising hair that effectively exerts the raising effect of long hair or curly hair before cutting the whiskers with the rotary inner blade and outer blade, surely long hair and curly hair It is to wake it up and make it easier to shave.

[0005]

The rotary electric shaver of the present invention is arranged parallel to and adjacent to the rotary inner blade 2 in the direction of rotation, as shown in the illustrated example. A cylindrical brushing rotating body 3 that rotates in a direction opposite to the rotary inner blade 2 around the shaft 16 in conjunction with the outer blade 2.
0 is provided in parallel with, and is provided with a long hair / straight hair introduction plate 21 having long hair / straight hair introduction holes 27 stretched in an arch shape so that the raised hair rotating body 3 is in sliding contact with the inner surface,
A raised hair introducing hole 26 is provided at a position of the outer blade 20 adjacent to the long hair / curly hair introducing plate 21.

[0006]

In operation, when the razor is moved along the skin with the long hair / curly hair introducing plate 21 ahead, the long hair and curly hair are forced by the cooperative action of the introducing plate 21 and the nap raising rotary member 3. You can wake up properly and reliably. Subsequently, the raised long hair or curly hair is introduced into the raised hair introduction hole 26 on the outer blade 20 side and cut.

[0007]

1 to 6 show an embodiment of a rotary electric shaver according to the present invention. In FIGS. 1 and 3, a cylindrical rotary inner blade 2 and a cylindrical rotary body 3 for raising hair are arranged side by side in parallel with each other on the upper part of the main body case 1. A plurality of spiral cutting blades 4 are provided on the peripheral surface of the rotary inner blade 2. A plurality of spiral-shaped raising blades 5 are provided on the circumferential surface of the raising rotating body 3. The napped blades 5 are for raising long hairs or curly hairs as the rotator 3 for napping is rotated, and are not actively cut.

An inner blade supporting frame 7 having a motor 6 mounted therein is incorporated in the main body case 1, and the side frames 7a and 7b of the inner blade supporting frame 7 are the main body case 1.
And the rotary inner blade 2 and the raising rotary body 3 are rotatably supported in opposite directions between the protruding ends of the side frames 7a and 7b. The inner blade supporting frame 7 is provided with drive transmitting means 9 for transmitting the rotary inner blade 2 and the raising rotary body 3 so as to rotate in opposite directions by driving the motor 6. The drive transmission means 9 includes an output gear 10 on the shaft of the motor 6 and a face gear 11 that meshes with the output gear 10.
A gear arranged at the end of the shaft 12 of the face gear 11, a gear 15 on the shaft 14 of the rotary inner blade 2 and a gear 17 on the shaft 16 of the brushing rotary body 3. And columns 19.

An outer blade 20 curved in an arch shape so as to wrap around the upper peripheral surface of the rotary inner blade 2 and a long hair / curly hair introducing plate 21 curved as arched so as to wrap around the upper peripheral surface of the rotator 3 for raising hair. An outer blade holder 22 including a common inner holder 22a and outer holder 22b is stretched, and is detachably attached to the upper portion of the main body case 1. In the sliding contact area of the outer blade 20 with the rotary inner blade 2, a large number of small polygonal or circular hair introducing holes 25 are provided, and at the sliding contact start portion, long hairs larger than the hair introducing holes 25 are raised. A plurality of raised hair introducing holes 26 for facilitating introduction of curly hair are provided side by side in the axial direction (left-right direction) of the inner blade of the rotary.

Long hair / straight hair introduction holes 27 are provided in the entire long hair / straight hair introduction plate 21, or at least in the left and right half regions on the sliding contact start side. The hole shape and arrangement pattern of the long hair / curly hair introducing hole 27 and the raised hair introducing hole 26 can be arbitrarily changed. As shown in FIGS. 1 and 2, one end portion 20a of the outer blade 20 on the upper side in the inner blade rotation direction is attached to a caulking pin 23a integrally protruding from a fixed rod 23 provided between left and right walls of a plastic inner holder 22a. It is fixed by caulking and welding, and the other end 2 on the lower side of the outer blade 20 in the inner blade rotation direction
0b is attached to the inner holder 22a by pulling it with a spring member 24.

Since one end 21a of the long hair / curly hair introducing plate 21 on the upper side in the rotating direction of the nap raising rotor is continuous with one end 20a of the outer cutter 20 on the upper side in the inner blade rotating direction, the one end 20a thereof. Is fixed by caulking and welding to the fixing rod 23 as described above, and the other end 21b of the long hair / curly hair introducing plate 21 on the lower side in the rotating direction of the rotator for raising hair is obtained.
Is attached to the inner holder 22a by pulling it with a spring member 24.

In this way, by fixing one end 20a on the upper side of the inner blade rotation direction of the outer blade 20 and pulling the other end 20b on the lower side of the inner blade rotation direction by the spring member 24, the outer blade 20 rotates. It receives a sliding contact force with the rotary inner blade 2 and is pulled toward the lower side of the rotary inner blade rotation direction P.
The slack of the outer blade 20 tends to be less likely to occur on the lower hand side, and the adhesion of the outer blade 20 to the rotary inner blade 2 is constantly enhanced to exhibit a good hair cutting action. Similarly, the long hair / curly hair introduction plate 21 is pulled toward the lower side of the rotation direction P of the nap raising rotary body 3 by the sliding contact force with the rotating nap raising rotary body 3, and the lower side of the rotation direction P The slack of the long hair / curly hair introduction plate 21 tends to be suppressed on the side, and the adhesion between the introduction plate 21 and the rotator 3 for raising hair is constantly enhanced, so that the hair raising action is exhibited well.

In FIGS. 1 and 3, the rotary inner blade support frame 7 has an elastically deformable arm 29, and both ends 29a, 29a of the arm 29 are supported and fixed to the inner wall of the main body case 1. As a result, the rotary inner blade 2 and the brushed rotating body 3 can be vertically floated with respect to the main body case 1 together with the support frame 7 while the outer blade 20 and the long hair / curly hair introducing plate 21 receive the skin pressure.
The degree of sliding contact between the inner rotary blade 2 and the rotary inner blade 2 and the degree of sliding contact between the long hair / curly hair introducing plate 21 and the rotator 3 for raising hair are always kept constant.

When shaving, as shown in FIGS. 6 (A) to 6 (C), when the long hair / curly hair introducing plate 21 is moved ahead and the razor is moved along the skin S in the arrow X direction, the long hair is moved. The curly hair H is introduced into the long hair / curly hair introducing hole 27, and the hair thus introduced is rotated to raise the hair 3.
The long hairs or curly hairs H that are forced to be raised by the above and subsequently stood up are cut into the raised hair introduction holes 26 of the outer blade 20. At this time, by providing the raised hair introducing hole 26 at the portion where the outer blade 20 starts sliding contact with the rotary inner blade 2, the raised hair is easily introduced, and the outer blade 20 receives the sliding contact force of the rotary inner blade 2. Even if the rotary inner blade is displaced to the lower side in the rotational direction, this displacement direction coincides with the direction in which the raised hair introducing hole 26 enters the sliding contact area with the rotary inner blade 2, so that the long hair introduced therein is left unshaved. It is cut without being cut.

The outer blade 20 and the long hair / curly hair introducing plate 21 are formed separately from each other instead of being integrally formed.
These may be mounted side by side on the outer blade holder 22. As a means for transmitting the rotation of the motor 6 to the rotary inner blade 2 and the nap raising rotary body 3, instead of the gear transmission as in the above embodiment, a timing belt transmission system may be adopted. It is arbitrary that the rotary inner blade 2 and the nap raising rotary body 3 have the same diameter or different diameters. Further, the rotational speed of the rotary inner blade 2 and that of the brushing rotary member 3 can be made different per minute. For example, if the rotary inner blade 2 is 2200 to 2500
(RPM), rotator 3 for nap raising 2700-3500
(RPM). On the contrary, it is also conceivable to set the number of revolutions per minute of the brushing rotating body 3 to be lower than the number of revolutions per minute of the rotary inner blade 2.

FIG. 7 shows another embodiment in which the height of the outer blade 20 is set higher than the height of the long hair / curly hair introducing plate 21. According to this, the long-haired / straight hair introduction plate 21 does not get in the way during normal shaving, and the long-haired / straight hair introduction plate 21 easily contacts the skin during long-hair or curly-hair shaving. The portion may be laid down so that it is tilted in a direction opposite to the direction of the long hair / curly hair introduction plate 21 side, and shaving is performed.

FIG. 8 shows still another embodiment. In this embodiment, the resin mold 30 is integrally fitted on the surface of the long-haired / curly-hair introduction plate 21 which is continuously formed integrally with the outer blade 20. In this case, the long hair / curly hair introducing plate 21 is held in a state of being bent in an arch shape along the upper portion of the peripheral surface of the nap raising rotary body 3, and then a resin is molded on the surface thereof. The raised hair introduction hole 26 and the long hair / curly hair introduction hole 27 on the outer blade 20 side are continuously formed. The end portion 20b of the outer blade 20 is attached to the outer blade holder 22 by pulling it with a spring member 24, and the end portion 21b of the long hair / straight hair introducing plate 21 is fixed. FIG. 9 also shows another embodiment in which long hair
The curly hair introducing plate 21 is made of a rigid metal thin plate that is plastically processed in an arch shape so as to follow the upper part of the circumferential surface of the nap raising rotating body 3, and the end of this plate 21 is overlapped with the end of the outer blade 20 and welded. It is scrutinized. In this case as well, the brushed introduction hole 26
The long hair / curly hair introduction hole 27 is continuously formed.

[0018]

According to the present invention, the hair raising means comprising the nap raising rotary body 3 and the long hair / curly hair introducing plate 21 is constituted,
Since this is provided side by side with the original rotary inner blade 2 and outer blade 20, the long hair / curly hair introduction plate 21 easily contacts the skin with a wide contact area, so long hair and curly hair can be reliably captured before cutting. It can be raised and then introduced into the outer blade 20 for reliable cutting.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a razor head portion.

FIG. 2 is an enlarged view of part A in FIG.

FIG. 3 is a perspective view of a razor head portion with an outer blade and long hair / curly hair introduction plates removed.

FIG. 4 is an exploded perspective view of an outer blade.

FIG. 5 is a plan view of an outer blade and long hair / curly hair introducing plate.

FIG. 6 is an operation diagram showing a process of raising and cutting long hair.

FIG. 7 is a vertical sectional side view of a razor head portion showing another embodiment.

FIG. 8 is a perspective view showing an outer blade and long hair / curly hair introduction plate of another embodiment in a partially broken state.

FIG. 9 is a perspective view showing an outer blade and long hair / curly hair introducing plate of yet another embodiment in a partially broken state.

[Explanation of symbols]

 2 Rotary inner blade 3 Rotating body for hair raising 14 ・ 16 Shaft 20 Outer blade 21 Long hair / curly hair introducing plate 25 Hair introducing hole 26 Raised introducing hole 27 Long hair / curly hair introducing hole

Claims (1)

[Claims] 1. A rotary inner blade 2 having a cylindrical shape with respect to an inner surface of the outer blade 20 in an arch shape having a large number of hair introduction holes 25,
In a rotary electric shaver that performs shaving by rotating around the shaft 14 in sliding contact, the rotary electric shaver is arranged parallel to and adjacent to the upper side of the rotary inner blade 2 in the rotational direction, and the shaft 16 operates in conjunction with the rotation of the rotary inner blade 2. A cylindrical brushing rotating body 3 that rotates around the rotary inner blade 2 in the opposite direction and an outer blade 20 are arranged in parallel with each other, and are stretched in an arch shape so that the brushing rotating body 3 is in sliding contact with the inner surface. The long hair / straight hair introduction plate 21 having the provided long hair / straight hair introduction hole 27 is provided, and at a location adjacent to the long hair / straight hair introduction plate 21 of the outer blade 20,
A rotary electric razor, which is provided with a brushed introduction hole 26.