JPH11128567A - Electric razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disassemble easily and thin a fixing part for a hair stopper. SOLUTION: The electric razor sets an opening window 2 on the surrounding wall 1a of a case 1. It has a hair stopper 4 which blocks the clearance between the surrounding wall 1a and the vibration board 3 and a covering frame 5 which sits on the top of the hair stopper 4 and mount the hair stopper 4 with the case 1. The hair stopper 4 is flexible and it blocks the clearance of the opening window 2 to prevent beards from entering. It has a covering frame 5 using a metal plate that is possible to do an elastic deformation. The case 1 is divided in two and has an anti-falling fitting part 16 which fits to link the end of the covering frame 5 to the edge of the opening window 2. The anti-falling fitting part 16 is set on the surrounding wall 1a of a case 1 and the boundary area of the front and rear plate 15. The covering frame 5 which links the both opposite ends to the anti-falling fitting part 16 is fit to the direction connecting the case 1 and is fixed at the precise position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an electric razor, and more particularly to an electric razor which can easily fix a bristle.

[0002]

2. Description of the Related Art An electric razor incorporates a motor, a drive mechanism for reciprocating an inner blade, a battery for rotating the motor, and the like in a case formed of plastic.
The case is formed into a shape that can be vertically divided into two parts. The case having this structure is assembled by storing a motor and the like in an open state and closing the case. The case is equipped with an outer blade at the top, and an inner blade is arranged so as to reciprocate while sliding on the inner surface of the outer blade, so that the outer blade and the inner blade can be shaved. I have. The inner blade, from the opening window of the case,
It is reciprocated by being connected to a drive mechanism built in the case. The opening window closes the gap with a bristle so that the beard cut by the outer blade and the inner blade does not enter the inside of the case.
The bristle has an outer periphery connected to the opening window of the case and an inner periphery connected to the vibration table so as to close a gap between the vibration table that reciprocates the inner blade and the opening window. The bristle stopper is connected to a reciprocating shaking table, and is made of a soft plastic or rubber having a cushioning property that can be deformed flexibly so as not to hinder the reciprocating movement of the shaking table.

A conventional electric razor shown in an exploded perspective view of FIG. 1 has a bristle 4 formed of a rubber-like elastic flexible sheet connected to an opening window 2. In order to fix the bristle stopper 4 to the case 1, a plastic holding frame 5 is attached to the peripheral wall 1 of the case 1.
a. In order to fix the holding frame 5 at a fixed position, a recess 20 is formed around the opening window 2 in the peripheral wall 1a. Further, the holding frame 5 is provided with notches 21 at opposite positions on the outer periphery, that is, at the lower right and upper left sides in the figure so that the holding frame 5 can be hooked and fixed to the case 1. The notch 21
It is provided at the boundary between the peripheral walls 1a connected to each other. Furthermore, the peripheral wall 1a of the case 1 is inserted into the notch 21 to
A hook projection 22 for fixing the holding frame 5 is integrally formed.

[0004]

The electric shaver of this structure has a disadvantage that the case cannot be easily disassembled. This is because the holding frame makes it difficult to disassemble the case. When disassembling the case, it is necessary to remove the presser frame. However, it is difficult to easily remove the presser frame. The holding frame is fitted into a concave portion provided on the upper surface of the peripheral wall, and is fixed by inserting a hooking protrusion of the peripheral wall into a cutout on the upper surface. The holding frame connected by this structure needs to be pulled out and removed, but it cannot be pulled out easily because it is prevented from being pulled up by the protrusion. It is important that a shaver containing a battery can be easily disassembled in order to collect and dispose of the battery. In particular, it is required that it can be easily disassembled only by a driver.

[0005] In order to simplify the disassembly of the case, an electric shaver having the structure shown in Fig. 2 has also been developed. The electric razor shown in this figure uses a soft plastic foam for the bristle 4, and further includes a clamping piece 23 for holding the bristle 4 between the upper and lower sides on the peripheral wall 1a of one of the two divided cases 1. Provided. Since the electric shaver having this structure does not use the holding frame 5 for fixing the bristle 4, the case 1 can be easily disassembled.

However, the electric shaver of this structure uses a plastic foam for the bristle, so that the bristle becomes thicker. Further, both sides of the bristle are formed by clamping pieces integrally formed on the peripheral wall of the case. There is a disadvantage that the portion where the bristle is provided becomes thicker because it is held. In the electric shaver shown in FIG. 1 as well, the bristle is fixed by the plastic holding frame, so that the bristle and the holding frame are thickened. In particular, a plastic holding frame needs to be formed to be considerably thick in order to have sufficient strength, and there is a disadvantage that it is difficult to make this part a strong structure and make it thin.

The present invention has been developed to solve this drawback. An important object of the present invention is to provide an electric razor that can easily disassemble a case and make a portion for fixing a bristle thin.

[0008]

An electric shaver according to the present invention has an opening window 2 provided on a peripheral wall 1a, and a case 1 which is formed by dividing into two, and a case 1 which is formed from the opening window 2 of the case 1. A vibrating table 3 protruding to the outside of the case and reciprocating the inner blade 9, and attached to the opening window 2 of the case 1,
Bristle 4 closing the gap between the peripheral wall 1a and the vibrating table 3
And a pressing frame 5 which is located on the upper surface of the bristle 4 and mounts the bristle 4 on the case 1. The bristle stopper 4 has flexibility so that it can be deformed together with the vibration table 3, and closes the gap between the opening windows 2 to prevent the mustache from entering the case 1 from the opening windows 2.

Further, in the electric shaver according to the first aspect of the present invention, the holding frame 5 is made of a metal plate which can be elastically deformed.
In addition, the case 1 divided into two parts is provided with a stopper fitting portion 16 on the periphery of the opening window 2 to which the edge of the holding frame 5 is fitted and connected. The retaining portion 16 is provided at a boundary between the peripheral wall 1 a of the case 1 and the front and back plate 15. The holding frame 5 that connects both ends facing each other to the retaining fitting 16 is
The case 1 is clamped in the connecting direction and is fixed to a fixed position of the case 1.

According to a second aspect of the present invention, there is provided an electric shaver, comprising: a connecting projection formed on an edge of the holding frame;
a is provided. The connection protrusion 5 a is bent in a Z shape and protrudes from the periphery of the holding frame 5. Connection protrusion 5a
Are inserted and connected to a retaining fitting 16 provided so as to penetrate the front and back plates 15, and connect the holding frame 5 to the case 1.

In the electric razor according to a third aspect of the present invention, the connecting projections 5 a are provided at adjacent corners of the holding frame 5.

The electric shaver according to a fourth aspect of the present invention is provided with a connection protrusion 5b which is cut out in an L-shape and connected to the stopper fitting portion 16 at the edge of the holding frame 5. This connection protrusion 5
b is inserted into the case 1,
And the holding frame 5 is connected to the case 1.

According to a fifth aspect of the present invention, the electric shaver is provided with a Z-shaped connecting protrusion 5a at one end of the holding frame 5 and an L-shaped connecting protrusion 5b at the other end. Letter-shaped connecting protrusion 5
a and the L-shaped connection protrusion 5a are fitted and connected to the retaining fitting portion 16.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. However, the following examples illustrate an electric shaver for embodying the technical idea of the present invention, and the present invention does not specify the electric shaver as follows.

Further, in this specification, in order to make it easier to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims” and “ In the column of “means”.
However, the members described in the claims are not limited to the members of the embodiments.

The electric razor shown in the exploded perspective view of FIG.
The case 1 includes a battery 7, a motor 8 driven by the battery 7, and a vibration table 3 vibrated by the motor 8. The vibrating table 3 built in the case 1 protrudes to the outside from the opening window 2 provided on the peripheral wall 1 a of the case 1, and connects the inner blade 9 to the tip. Opening window 2 on peripheral wall is bristle 4
And the bristle stopper 4 is fixed to the case 1 by the holding frame 5. The inner blade 9 reciprocates while sliding on the inner surface of the outer blade 6, and cuts a beard. The outer cutter 6 is connected to the case 1 via an outer cutter frame 12. The outer blade 6 has a thin mesh blade having a number of shaving holes, and the inner blade 9 slides on the inner surface of the mesh blade to reciprocate. In order to removably mount the outer blade frame 12, the case 1 shown in FIG.

The case 1 is made of plastic and is formed into a shape that can be divided into two parts. The case 1 formed into two parts has a peripheral wall 1a formed in the same shape along the outer periphery, and the peripheral wall 1a is connected to form a closed structure case. 2
In order to connect the divided case 1, the case 1 in FIG.
Is provided with boss holes 11 for screwing at two places at the upper part and two places at the lower part. A set screw is screwed into the boss hole 11 to connect the two divided cases 1.

The case 1 has an opening window 2 at its upper part for projecting the vibrating rod 13 of the vibrating table 3 to the outside. Case 1
Has an opening window 2 at the center of the upper peripheral wall 1a. In the case 1 shown in the figure, two rows of projecting portions 1b are integrally formed on the peripheral wall 1a of the case 1 located on the left side in the figure. The protruding portion 1 b protrudes along the periphery of the opening window 2. By this protruding portion 1b, the opening case 2
A side is provided. The right case has one side of the opening window 2. When the left and right cases 1 are connected, a rectangular opening window 2 is provided on the peripheral wall 1a.

At the periphery of the opening window 2, a ridge 14 is provided projecting from the upper surface to connect the bristle 4. Ridge 14
Is provided on the peripheral wall 1 a of the one case 1. The electric shaver shown in FIG. 3 is provided with an opening window 2 on the peripheral wall 1a of the left case 1.
Are provided along the line. The upper surface of the ridge 14 is formed slightly lower than the upper surface of the peripheral wall 1a. This is because the bristle 4 is attached to the ridge 14 so that the upper surface of the bristle 4 is flush with the upper surface of the peripheral wall 1a.

The opening window 2 is closed with a bristle 4. Open window 2
This is to prevent the mustache from entering from. The brush 4
With the vibrating rod 13 of the vibrating table 3 vibrating freely,
Prevents mustaches. The bristle stopper 4 is formed by forming a flexible sheet material that can be deformed together with the vibration rod 13 of the vibration table 3, for example, a flexible rubber-like elastic body into a sheet shape.

The bristle stopper 4 closes a gap between the opening window 2 and the vibrating rod 13 of the vibrating table 3 to prevent intrusion of a beard. The bristle stopper 4 has an outer shape slightly larger than that of the opening window 2, and is provided with a connection groove 4 a along the periphery of the lower surface for inserting a ridge 14 provided on the periphery of the opening window 2. The bristle stopper 4 is provided with a through-hole 4b into which the two vibrating rods 13 are inserted, and the periphery of the through-hole 4b is formed into a shape that is slack like a bellows.

The holding frame 5 is made of an elastically deformable metal plate. The metal plate is a metal plate having elasticity enough to be deformable by hand, for example, a metal plate such as a stainless steel plate having a thickness of 0.1 to 0.5 mm, preferably about 0.3 mm.

The holding frame 5 is clamped in a direction for connecting the left and right cases 1, that is, in a direction indicated by an arrow in FIG. The holding frame 5 shown in the figure is provided with connecting projections 5a which are bent in a Z-shape and project from the periphery of the holding frame 5 at both corners of the lower left end edge. This connection protrusion 5
a, as shown in the cross-sectional views of FIG. 3 and FIG.
A retaining fitting portion 16 provided through the front and back plate 15
To be connected. The stopper fitting portion 16 is provided so as to penetrate the front and back plate 15 from a portion which is a boundary between the peripheral wall 1a of the case 1 and the front and back plate 15 and is formed one step lower than the upper surface of the peripheral wall.

The holding frame 5 shown in the figure is provided with a connection protrusion 5b by bending an upper right edge upward in an L-shape. The L-shaped connection protrusion 5b is connected to a stopper fitting portion 16 provided at a boundary between the peripheral wall 1a of the right case 1 and the front and back plate 15. In the right case 1 shown in the figure, two rows of ridges 17 are provided vertically apart from each other at the upper end of the front and back plate 15, and a stopper fitting portion 16 is formed between the ridges 17.

The bristle clasp 4 and the presser frame 5 of this shape are assembled into the case 1 as described below and mounted in a fixed position on the case 1. A bristle stopper 4 is attached to the left case 1 in the figure. The bristle stopper 4 is attached to a fixed position of the left case 1 by inserting a connecting groove 4a into a ridge 14 provided on the opening window 2. The bristle stopper 4 attached to the case 1 is provided with the vibration rod 1 of the vibration table 3 in the through hole 4b.
3 is inserted. Case 1 houses all the built-in parts. The right and left cases 1 are connected at an accurate position, and the two cases 1 are connected with screws. The holding frame 5 is attached to the retaining fitting 16 of the case 1. The holding frame 5 is formed by connecting the Z-shaped connection protrusion 5a provided on the left side to
After being inserted into the retaining fitting portion 16 of the left case and being connected, it is slightly curved, and the L-shaped coupling protrusion 5b provided on the right is fitted into the retaining fitting portion 16 of the right case. Fix to 1. The case 1 shown in FIG.
The upper surface of the peripheral wall 1a is formed into a mountain shape, and the holding frame 5 is loosely bent in the middle along the peripheral wall 1a of the mountain shape.

The holding frame 5 in which the connection protrusions 5a and 5b at both ends are fitted to the retaining fitting portion 16 of the case 1 is held in a fixed position by being sandwiched by the case 1. When disassembling the case 1, the screws connecting the left and right cases 1 are removed, and the case 1 is separated.
Can be easily separated from the case 1.

As shown in FIG. 3, a vibrating table 3 for projecting the vibrating rod 13 from the opening window 2 to the outside of the case 1 is attached to the upper ends of elastic arms 3A provided on both sides by fitting the upper ends of the elastic arms 3A provided on the case 1. The vibration rod 13 is fitted into the hole 18 and disposed at the center of the opening window 2. The elastic arm 3 </ b> A has a thick end formed as a fitting portion, and the fitting portion is fixed in the fitting hole 18 of the case 1. The vibration table 3 elastically deforms the elastic arm 3A to vibrate the vibration rod 13 in the reciprocating direction of the inner blade 9.

The vibration table 3 has a drive slit connected to a cam shaft 19 fixed to the rotation shaft of the motor 8. The drive slit is provided to extend in a direction orthogonal to the direction of reciprocating movement. When the motor 8 is rotated, the camshaft 1
9 slides in the drive slit, and the vibration table 3 is reciprocated.

[0029]

The electric shaver according to the present invention has features that the case can be easily disassembled and the portion for fixing the bristle can be made thin. That is, the electric razor of the present invention is made of a metal plate capable of elastically deforming the holding frame, and a case where the holding frame is divided into two parts is provided with a retaining fitting for fitting the edge of the holding frame to the periphery of the opening window and connecting the edges. This is because the retaining fitting portion is provided at the boundary between the peripheral wall of the case and the front and back plates, and the holding frame is clamped and fixed in the direction in which the cases are connected.

In the meantime, the electric shaver prototyped by the inventor of the present invention has a thickness of the holding frame which is extremely thin as 1/10 of the conventional one, and furthermore, the holding frame can be easily separated by disassembling the case. . Therefore, the electric shaver of the present invention
There is a feature that the distance between the shaking table and the inner blade is reduced so that the inner blade can reciprocate reliably. The fact that the distance between the inner blade and the shaking table can be shortened allows the reciprocating motion of the shaking table to be transmitted to the inner blade without waste. Also, features such as shortening the vibration rod of the shaking table and increasing the vertical stroke of the inner blade are realized.

The electric razor according to claims 2 and 3 of the present invention
The holding frame is provided with a Z-shaped connection protrusion, which is connected to the stopper fitting that penetrates the front and back plates of the case, so that the holding frame can be easily and securely connected so as not to come off. is there.

In the electric shaver according to a fourth aspect of the present invention, an L-shaped connecting projection is provided on the holding frame, and this is fitted and connected to the stopper fitting portion of the case. It has the feature that it can be connected to the case by using the protrusion as a rib to reinforce the holding frame.

In the electric shaver according to the fifth aspect of the present invention, a Z-shaped connecting protrusion is provided on one side of the holding frame, and an L-shaped connecting protrusion is provided on the other side of the holding frame. The feature is that the frame can be easily and securely attached.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a conventional electric shaver.

FIG. 2 is an exploded perspective view of another conventional electric shaver.

FIG. 3 is an exploded perspective view of the electric shaver according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a bristle of the electric razor shown in FIG. 3 and a mounting portion of a holding frame.

[Explanation of symbols]

1 ... case 1a ... peripheral wall 1
b: Projecting portion 2: Opening window 3: Vibration table 3A: Elastic arm 4: Bristle 4a: Connecting groove 4
b: through-hole 5: holding frame 5a: connecting protrusion 5
b ... Connecting protrusion 6 ... Outer blade 7 ... Battery 8 ... Motor 9 ... Inner blade 10 ... Elastic protrusion 11 ... Boss hole 12 ... Outer blade frame 13 ... Vibrating rod 14 ... Protrusion 15 ... Front and back plate 16 ... Removable fitting Part 17: Protrusion 18: Fitting hole 19: Camshaft 20: Recess 21: Notch 22: Hook projection 23: Clamping piece

Claims (5)

[Claims] An opening window (2) is provided in a peripheral wall (1a), and a case (1) divided into two parts, and an opening window of the case (1) are provided.
The vibration table (3) that protrudes from the case (1) to the outside of the case (1) and reciprocates the inner blade (9), and is attached to the opening window (2) of the case (1), A bristle (4) closing the gap between the peripheral wall (1a) and the vibrating table (3), and a bristle positioned on the top of the bristle (4)
(4) to the case (1) and a holding frame (5), and the bristle stopper (4) has flexibility to be deformable together with the vibrating table (3), and has an opening window (2). Close the gap of () and open the case from the opening window (2).
(1) In an electric shaver configured to prevent a beard from entering the inside, the holding frame (5) is made of an elastically deformable metal plate, and the case (1) divided into two parts has an opening window. Presser frame (5) around the periphery of (2)
Has a stopper fitting portion (16) that fits and connects the edge of the case, and the stopper fitting portion (16) is connected to the peripheral wall (1a) of the case (1) and the front and back plate.
A holding frame (5), which is provided at a boundary portion with (15) and is connected to both ends facing each other with a retaining fitting (16), is clamped in a direction for connecting the case (1). An electric razor configured to be fixed in place. 2. A connecting projection (5a) connected to the retaining fitting (16) is provided at an edge of the holding frame (5), and the connecting projection (5a) has a Z-shape. And protrudes from the periphery of the holding frame (5), and the projection of the connection protrusion (5a) is
The electric shaver according to claim 1, wherein the electric shaver is inserted and connected to a retaining fitting (16) provided so as to penetrate through (5). 3. The electric shaver according to claim 2, wherein the connecting projections (5a) are provided at adjacent corners of the holding frame (5). 4. A connecting projection (5b) connected to the retaining fitting (16) is provided at an edge of the holding frame (5), and the connecting projection (5b) has an L-shape. The connection protrusion (5b) bent in an L-shape is fitted and connected to a retaining fitting portion (16) which is a concave portion provided in the case (1). Item 10. An electric razor according to Item 1. 5. The holding frame (5) has a Z-shaped connecting protrusion (5a) at one end and an L-shaped connecting protrusion (5b) at the other end. The electric razor described in 4.