JPH06327852A - Reciprocating type electric razor - Google Patents

Abstract

PURPOSE:To provide a thin reciprocating type electric razor that can be properly brought into contact with the irregularities of the skin, and that is sharp and can be conveniently used without giving a user an unpleasant feeling such as vibration and noise. CONSTITUTION:In a reciprocating type electric razor provided with a plurality of carriers 8 each having a large projection 8d, outer edges 5 fitted to the opening parts of the respective carriers 8, and inner edges 4 that reciprocate with regard to the outer edges 5, and also provided with a frame 9 having a first retaining part 9a and a second retaining part 9d to which the carriers 8 are retained via the large projections 8d; it is so constituted that the large projection 8d of each carrier 8 does not overlap with the large projection 8d of the adjacent carrier 8.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a reciprocating electric shaver.

[0002]

2. Description of the Related Art A conventional reciprocating electric shaver, as a first embodiment, is formed of a pair of short walls and a pair of long walls having a projection-like held portion as shown in FIG. Carrier, an outer blade attached to one opening of the carrier, an inner blade that reciprocally slides with respect to the outer blade inside the carrier, and the carrier holds the held portion so that the top of the outer blade protrudes to the outside. And a frame having a holding portion held therethrough. This was not a problem even if the projection-shaped held part was long, but the outer blade,
In the case of a multi-head having a plurality of inner blades and carriers, there arises a problem that the cross section in the lateral direction becomes thick.

Next, a conventional example (second conventional example) of a two-head reciprocating electric shaver having two outer and inner blades and a carrier will be described.

In the second conventional example, as shown in FIG. 8, the long walls of the carriers are arranged to face each other regardless of the orientation of the carriers. And, in this product, since the projection-like held portion was formed large and long, the dimension of L1 in the figure becomes large, and as a result,
The pitch between the heads has also increased.

In addition, as shown in FIG. 9, in this structure, a disengaging claw is provided on the side of the long wall opposite to the outer blade side so that the carrier can be detached from the frame. This claw pulls with a finger or the like, the long wall bends and the held portion releases the holding state with the holding portion, and the claw of the adjacent carrier was immediately adjacent.

Further, in this device, as shown in FIG. 10, a stepped elastic arm having a substantially flat outer blade side is provided on the short wall of the carrier, and the substantially planar step of the elastic arm abuts on the frame. The contact portion having a substantially flat wall was provided. When the outer blade is pressed against the skin obliquely in the lateral direction, the elastic arm rotates about either the point a or the point b as a fulcrum to move the head up and down.

[0007]

The conventional reciprocating electric shaver described above has a large pitch between the heads as in the second conventional example, and when shaving, the skin penetrates deeply between the heads for stimulation. In addition, in the case where the elongated slit hole is provided below the outer blade, there is a problem that the slit hole is blocked by the skin and the introduction of the long whiskers is deteriorated. Also, because the claws of each carrier were close,
When one finger is used to grip the claw to remove the one carrier, the claw of the other carrier becomes an obstacle and is difficult to remove. Further, since the elastic arm rotates about either the point a or the point b as a fulcrum, it causes vibration and noise, and there is a problem that the head does not rise and fall smoothly.

The present invention has been made in view of the above points, and an object of the present invention is to provide good sharpness along the unevenness of the skin without giving the user discomfort such as vibration or noise. , To provide a convenient and thin reciprocating electric razor.

[0009]

In order to achieve the above object, the reciprocating electric shaver according to claim 1 is formed of a pair of short walls and a pair of long walls having a held portion on at least one of the pair of short walls. A carrier having an opening, an outer blade attached to one opening of the carrier, and a plurality of inner blades that slide back and forth with respect to the outer blade inside the carrier, and long walls of adjacent carriers face each other and the outer blade is provided. A frame having a holding portion for holding the carrier through the held portion so that the top of the carrier protrudes to the outside, each carrier has a position where the held portion does not overlap with the held portion of the adjacent carrier. The configuration provided in.

The reciprocating electric shaver according to a second aspect of the present invention has a configuration in which one long wall and the other long wall of the first aspect are provided with held portions having different shapes.

Further, the reciprocating electric shaver according to claim 3 is characterized in that the long wall of each carrier according to claim 1 or 2 is
It is formed by extending in the lateral direction at a position opposite to the opening to which the outer blade is attached, and is provided with a pawl that releases the holding state of the held portion with the holding portion when pulled in the lateral direction. The claws of the carriers are arranged so as not to be adjacent to the claws of the adjacent carrier.

The reciprocating electric shaver according to a fourth aspect is provided with elastic arms having arcuate steps on the outer blade side on both short walls of each carrier according to the first or second aspect. The elastic arm has an abutting portion having a substantially flat wall with which an arcuate step abuts.

[0013]

According to the structure of the first aspect, the held portions of the respective carriers are provided at positions where they do not overlap with the held portions of the adjacent carriers, so that the held portions of the adjacent carriers do not interfere with each other. .

According to the second aspect of the invention, even if the carrier is attached to the frame in the wrong direction, the held portion is not held by the holding portion.

According to the third aspect of the present invention, since the claws do not exist side by side, when the carrier is removed from the frame by grasping the claw with a finger or the like, it is possible to remove the claw of the adjacent carrier without disturbing it.

According to the structure of claim 4, even when the outer cutter is pressed from multiple directions, the arcuate step of the elastic arm slides on the substantially flat wall of the contact portion, so that the outer cutter smoothly rises and falls together with the carrier. .

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS.

Reference numeral 1 denotes a main body, in which a rotary drive device such as a motor and a conversion member for converting the rotation of the rotary shaft of the rotary drive device into a reciprocating motion are provided. Two driver elements 2 are provided above the conversion member, and a trimmer driving rod 3 is fixed to one of the driver elements 2. Reference numeral 4 denotes an inner blade, and a large number of arc-shaped inner blade blades 4a are arranged on the upper surface thereof. Five
Is a thin outer blade, a blade hole 6a for introducing a beard, an elongated slit hole 6b for introducing a long beard, and an outer blade fixing hole 6c.
And are formed. Reference numeral 6 denotes a trimmer, which moves the movable blade 6a back and forth with respect to the fixed blade 6b to perform shaving, and is operated by operating the trimmer button 7 in connection with the trimmer drive rod 3. A portion of the outer blade 5 that comes into contact with the skin is used as a head and will be used in the following description.

Reference numeral 8 is a carrier to which the outer blade 5 is fixed, and is formed by a pair of long walls 8a and a pair of short walls 8b. Each long wall 8a is placed in a symmetrical position in FIG.
One cylindrical small protrusion 8c and one rectangular parallelepiped large protrusion 8d
And an elongated claw 8e having a key-shaped tip. Each short wall 8b is formed with an elastic arm 8f so as to be symmetrically positioned in FIG. 1. The elastic arm 8f is
The upper part is an arcuate step. Here, the outer blade 5 is fixed to the carrier 8 by inserting the outer blade fixing hole 6c into the small protrusion 8c and then crushing the small protrusion 8c.

Reference numeral 9 denotes a frame in which the carrier 8 is held, and as shown in FIG.
The groove-shaped first holding portion 9a is formed on the line A passing through the point A, and the point A
A positioning protrusion 9b is formed on a line B passing through. Reference numeral 9c is a center rib, and a notch-shaped second holding portion 9d is formed at a position perpendicular to the center rib 9c from the first holding portion 9a. The width of the groove of the first holding portion 9a and the width of the second holding portion 9d are substantially the same. Also, the center rib 9c
When the thickness L0 is compared with the thickness L1 of the center rib of the second conventional example, L0 <L1 (≈L0 × 2), which is thinner than the center rib of the second conventional example. 9e is a contact portion formed in a U shape, and the arcuate step of the elastic arm 8f contacts this.

Numeral 10 is a switch for turning the power on and off,
Power is supplied to the rotary drive by the operation of "ON",
The power supply to the rotary drive device is stopped by the operation of "OFF". Reference numeral 11 denotes a frame attachment button, which allows the frame 9 to be attached to and detached from the main body 1.

Here, when the carrier 8 to which the outer blade 5 is fixed is held by the frame 9, each carrier 8 is held by the frame 9.
Of the large projections 8d, one of the large projections 8d is held by the first holding portion 9a, and the other large projection 8d is held by the second holding portion.
The long wall 8a is supported by the positioning protrusions 9b in order to hold the carrier 8 in the frame 9d and further reduce the play in the lateral direction of the carrier 8, and the carrier 8 is held in the frame 9. At this time, the arcuate step of the elastic arm 8f is in contact with the contact portion 9e.

Further, when the carrier 8 is removed from the frame 9, as shown in FIG. 3, when the nail 8e is grasped and pulled by a finger or the like, the long wall 8a bends inward and the large projection 8d and the first holding portion 9a,
The holding states of the large protrusion 8d and the second holding portion 9d are released,
Further pulling the claw 8e allows the carrier 8 to be completely removed from the frame 9. At this time, the carrier 8 to be removed is located next to the nail 8e of the carrier 8 next to it.
Since 8e does not exist, it can be easily removed.

The operation and use of this embodiment will be described below. First, when the switch 10 is operated to "ON", power is supplied to the rotary drive device to rotate the rotary shaft, the rotary motion is converted into reciprocating motion by the conversion member, and the inner blade 4 is externally moved via the driver 2. Sliding back and forth against blade 5. At this time, the outer blade
When 5 comes into contact with the skin such as cheeks and chin, whiskers penetrate through the blade holes 5a and are sheared by the outer blade 5 and the inner blade 4a. For long beards and sleeping beards, the skin is pulled by two heads and behaves freely in the space between the two heads and the skin, so it is efficiently introduced into the slit holes 5c and sheared. It
Further, as shown in FIG. 4, since the arcuate step of the elastic arm 8f rotates on the contact portion 9e without giving vibration, the head can smoothly follow the skin, and more efficiently. You can shave. When the shaving is completed, the switch 10 is turned off to stop the power supply to the rotary drive device.

Next, a second embodiment of the present invention will be described with reference to FIG. It should be noted that members having substantially the same functions as those of the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

Each carrier 8 of this embodiment has one large protrusion.
8d has the same shape as the large protrusion 8d of the first embodiment, and the other large protrusion 8d 'is formed smaller than the large protrusion 8d of the first embodiment. In the frame 9, the first holding portion 9a has the same groove shape as the first holding portion 9a of the first embodiment, and the second holding portion
9d 'is formed as a notch having a size slightly larger than the size of the large protrusion 8d'.

According to this structure, the carrier 8 is held by the frame 9 only in a fixed direction, so that the carrier can be prevented from being erroneously attached to the frame during assembly.

[0028]

The reciprocating electric shaver according to claim 1 is
Since the held portion of each carrier is provided at a position that does not overlap the held portion of the adjacent carrier, the held portions of the adjacent carriers do not interfere with each other, and as a result, the carrier can be made thin.

According to the reciprocating electric shaver of the second aspect, in addition to the effect of the first aspect, since the held portion is not held by the holding portion even if the carrier is attached to the frame in the wrong direction, the frame of the carrier It is possible to prevent the wrong installation.

In the reciprocating electric shaver according to claim 3, in addition to the effect according to claim 1 or 2, since the claws do not exist side by side, when the carrier is removed from the frame by grasping the claws with a finger or the like, the adjacent carrier is removed. The claws of the carrier can be removed without obstruction, and as a result, the carrier can be easily attached to and detached from the frame.

In addition to the effect of claim 1 or 2, the reciprocating electric shaver according to claim 4 has the arcuate step of the elastic arm which forms a substantially flat wall of the contact portion even when the outer blade is pressed from multiple directions. Since it slides, the outer blade smoothly rises and falls with the carrier, and as a result, the outer blade and the skin come into smooth contact with each other, and the shaving feel can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the relevant part.

FIG. 3 is a perspective view of a main part thereof.

FIG. 4 is a cross-sectional view of the relevant part.

FIG. 5 is a perspective view showing its appearance.

FIG. 6 is a cross-sectional view of essential parts of a second embodiment of the present invention.

FIG. 7 is a front view of a main part of a first conventional example.

FIG. 8 is a cross-sectional view of essential parts of a second conventional example.

FIG. 9 is a perspective view of an essential part thereof.

FIG. 10 is a sectional view of the relevant part.

[Explanation of symbols]

 4 Inner blade 5 Outer blade 8 Carrier 8a Long wall 8b Short wall 8d, 8d 'Large protrusion 8e Claw 8f Elastic arm 9 Frame 9a 1st holding part 9d, 9d' 2nd holding part 9e Contact part

Claims (4)

[Claims] 1. A carrier having a pair of openings formed by a pair of short walls and a pair of long walls having a held portion on at least one side, an outer blade attached to one opening of the carrier, and an inside of the carrier. A plurality of inner blades that slide back and forth with respect to the outer blades, and have holding portions for holding the carriers through the held portions so that the long walls of adjacent carriers face each other and the tops of the outer blades project to the outside. In a reciprocating electric razor provided with a frame, each carrier is provided with its held portion at a position not overlapping the held portion of an adjacent carrier. 2. The reciprocating electric shaver according to claim 1, wherein the one long wall and the other long wall are provided with held portions having different shapes. 3. The carrier is formed on a long wall of each carrier at a position opposite to an opening to which the outer blade is attached, extending in the lateral direction. When the carrier is pulled in the lateral direction, a held portion is formed. The reciprocating electric shaver according to claim 1 or 2, wherein a claw for releasing the holding state with the holding part is provided, and each carrier is arranged so that the claw is not aligned with the claw of an adjacent carrier. 4. An elastic arm having an outer blade side formed in an arcuate step is provided on both short walls of each carrier, and an abutting portion having a substantially flat wall with which the arcuate step of the elastic arm abuts is provided on the frame. The reciprocating electric shaver according to claim 1 or 2, which is provided.