JPH11239680A - Electric razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect an outer blade by a cap by preventing a razor main body from entering the cap when the cap is dropped in an installed state. SOLUTION: An electric razor has a cap 20 to insert the almost whole of a razor main body 1 and an outer case 21 installed under the razor main body 1. In the cap 20 installed on the razor main body 1, clearance is formed between the cap and an outer blade 3 of the razor main body 1. A stopper collar 4 divided into a plurality of parts is protrusively disposed in the lower part of the razor main body 1. The stopper collar 4 prevents the razor main boy 1 from entering the cap 20 by a shock.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a razor body,
The present invention relates to an electric razor in which a cap is detachably mounted.

[0002]

2. Description of the Related Art FIGS. 1 and 2 show a conventional electric razor in which a razor body is housed in an outer cover formed by an outer case and a cap. When the electric razor is not used, a cap 20 is attached to the razor body 1 as shown by an arrow in FIG. In this state, the outer blade 3 of the razor body 1 is protected by the cap 20.
The cap 20 is inserted until the lower end is brought into contact with the outer case 21 to cover almost the entire razor body 1.

[0003] The electric razor shown in FIG.
The feature is that the blade frame can be protected by the cap 20. For this reason, it can be conveniently used to carry it in a bag or the like together with other items. However, in the electric razor having this structure, the cap 20 needs to be attached to a predetermined position of the razor body 1. In order to realize this, a connecting portion between the cap 20 and the outer case 21
A step portion that can be fitted to each other was provided. In this electric razor, the outer case 21 is connected to a fixed position of the razor body 1, the cap 20 is connected to a fixed position of the outer case 21, and the cap 20 is attached to the fixed position of the razor body 1.

[0004]

In the electric razor of this structure, the cap is connected to a fixed position of the razor body via an outer case. This electric razor, for example, has the drawback that when the cap is dropped with the cap down, the impact causes the razor body to enter the inside of the cap, causing the outer blade or blade frame of the razor body to collide with and damage the cap. there were. This problem can be solved by providing a ring-shaped flange on the razor body so as to protrude between the outer case and the cap. However, in the electric razor of this structure, in a state where the outer case and the cap are mounted on the razor body, a ring-shaped flange is exposed at the boundary between the outer case and the cap, or a step is formed in this part by the flange. There is an adverse effect that the appearance is unskilled.

[0005] The present invention has been developed for the purpose of further solving such a drawback. An important object of the present invention is that the razor body does not penetrate into the cap even when dropped with the cap attached, and the outer blade and the like can be sufficiently protected by the cap, and furthermore, a clean and beautiful appearance. To provide a shaver that can be used.

[0006]

An electric razor according to the present invention comprises a razor body 1, a cap 20 attached to the razor body 1, and an outer case 21 attached to a lower portion of the razor body 1. Have. The razor body 1 has a built-in drive mechanism for reciprocating the outer cutter 3, the inner cutter 7, and the inner cutter 7. The cap 20 is detachably attached to the razor main body 1 in a state where almost the entire razor main body 1 is inserted. The outer cover 2 is formed by the outer case 21 and the cap 20, and the razor body 1 is mounted inside the outer cover 2. The electric razor is mounted with the razor body 1 on the outer cover 2 and the outer blade 3 and the cap 20.
The cap 20 is formed so that a gap is formed between the cap 20 and the cap 20.

Further, in the electric razor according to the first aspect of the present invention, a plurality of divided stopper flanges 4 are protrudingly provided at a lower portion of the razor body 1. The stopper flange 4 prevents the razor body 1 from entering the cap 20. Further, the stopper flange 4 is fitted into a stopper concave portion 5 provided on the outer cover 2 so as to prevent the appearance from being made unnatural.

In the electric shaver according to the second aspect of the present invention, a stopper recess 5 into which the stopper flange 4 is fitted is provided in the upper end opening of the outer case 21.

In the electric razor according to a third aspect of the present invention, the cap 20 and the outer case 21 have an elliptical cylindrical shape, and the stopper flanges 4 are provided at both ends of the razor body 1.

According to a fourth aspect of the present invention, the razor body 1 has a watertight structure, and the razor body 1 further has an outer case 2.
1 is mounted on the razor body 1 in a watertight manner.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below 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 "claims". 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 FIG. 3 has a razor body 1, an outer cover 2 composed of a cap 20 and an outer case 21 detachably connected to the razor body 1, and a detachable lower part of the razor body 1. And a battery case 6 connected to the battery case 6. An outer case 21 serving as the outer cover 2 is connected below the razor body 1, and the cap 20 is attached to the razor body 1 so that substantially the entire razor body 1 is inserted.

In the electric razor shown in FIG. 1, the battery case 6 is connected to the razor body 1 as a part separate from the outer case 21 and located inside the outer case 21. In this electric razor, the battery case 6 and the outer case 21 are separately attached to the razor body 1 detachably. The electric shaver of the present invention can also have a structure in which a battery is housed in an outer case and the outer case is used in combination with the battery case. In the electric shaver having this structure, the shape of the inner side of the outer case is made the same as the shape of the inner side of the battery case, and the battery is removably accommodated, or the battery is accommodated so as not to be detachable.

The razor body 1 has an outer blade 3 removably mounted on the upper end thereof, and is built in the inner surface of the outer blade 3 so as to reciprocate while the inner blade 7 is elastically pressed. An exploded perspective view of the razor body 1 is shown in FIG. In the razor body 1 of this figure, a drive mechanism for driving the inner blade is built in a plastic case composed of a body case 1A and a lid case 1B.

The main body case 1A is formed by molding colored transparent plastic into an elliptical cylindrical shape, and is provided with stopper flanges 4 integrally protruding at both end portions of the lower end edge. The stopper flanges 4 at both ends are formed to have the same width or different widths. The stopper flange 4 is provided in the outer case 21.
Is inserted into the stopper concave portion 5 provided in the upper portion. Therefore, the razor body provided with the stopper flanges having different widths is mounted on the outer case provided with the stopper recesses having different widths.
This electric razor has a feature that the razor body and the outer case can be mounted in a predetermined direction. An electric razor in which both stopper flanges have the same width can be mounted on the razor body by rotating the outer case 180 degrees without any direction.

The upper surface of the stopper flange 4 is
A is provided so as to protrude downward from the main body case 1A so as to be flush with the lower edge of A. This is for stopping the lower edge of the cap 20 attached to the main case 1A to be flush with the lower edge of the main case 1A.

The stopper flange 4 shown in FIG. 3 is fitted inside a stopper recess 5 provided inside the outer case 21. The stopper flange 4 having this structure does not appear outside when the outer case 21 is attached. Also, the cap 20
The stopper flange 4 can be configured so as not to protrude from the upper surface of the outer case 21 even in a state in which is removed. For this reason, the stopper flange 4 and the stopper concave portion 5 having this structure can have the most beautiful appearance.

Although not shown, the stopper recess for fitting the stopper flange is not an outer case but a stopper recess.
It can also be provided on the lower edge of the cap. This electric shaver can be shaped so that the stopper flange is not exposed to the outside when the cap is attached. The stopper recess of the cap has a structure in which the stopper flange is not exposed to the outside, similarly to the stopper recess 5 of the outer case 21 shown in FIG.

FIG. 5 is a sectional view showing a structure in which the stopper flange 4 is fitted into the stopper recess 5 provided in the outer case 21. The stopper flange 4 shown in FIG.
Is fitted inside the stopper concave portion 5 of the first embodiment. Further, the tip edge of the stopper flange 4 is located substantially on the same plane as the outer surface of the cap 20 or slightly inside the outer surface.

The main body case 1A, which has an elliptical cylindrical shape and has a lower opening, is closed in a watertight manner by connecting a lid case 1B to the lower opening. The lid case 1 </ b> B has an insertion connecting portion 8 whose lower portion is inserted into the cylindrical opening 9 of the outer case 21,
The upper part is a watertight connection part 10 that is inserted into and connected to the main body case 1A. Watertight connection 10 and insertion connection 8
Has a groove (not shown) provided in a ring shape, and the packing 11 is fitted into the groove. The packing 11 provided on the watertight connection portion 10 is in close contact with the inner surface of the main body case 1A, and connects the lid case 1B to the main body case 1A in a watertight manner. The packing 11 provided on the insertion connecting portion 8 is in close contact with the inner surface of the outer case 21 to connect the outer case 21 in a watertight manner. The packing 11 provided on the insertion connecting portion 8 is located inside the decorative ring 21B provided on the outer case 21,
It is covered with the decorative ring 21B so that it cannot be seen from the outside.

The lower portion of the insertion connecting portion 8 provided at the lower portion of the lid case 1B is slightly thinner than the portion connecting the outer case 21 to form the fitting connecting portion 12 of the battery case 6. The fitting connection portion 12 is provided with a hooking protrusion 13 for connecting the battery case 6 at a position facing the protrusion. A hook hole 14 for guiding the hook projection 13 is
It is open at the upper end of the battery case 6. Furthermore, the battery case 6 has an inner shape at the tip slightly larger than the outer shape of the fitting connection portion 12, in other words, with the fitting connection portion 12 inserted into the upper end of the battery case 6, the battery case 6 is slightly bent. You can rotate. When the battery case 6 is inserted into the fitting connection portion 12 and then slightly rotated in the direction indicated by the arrow in FIG. 3, the hooking protrusion 13 is guided by the hooking hole 14 and connected so as not to come off.

A power supply terminal, not shown, that is in contact with the + and-terminals of the battery housed in the battery case 6 is fixed to the lower end surface of the insertion connecting portion 8 of the lid case 1B. The power supply terminal is electrically connected to a battery housed in the battery case 6 and supplies power to the motor via a switch.

As shown in FIG. 4, the drive mechanism includes a motor 15, an inner blade base 16 reciprocated by the motor 15,
It has a motor 15 and an inner frame 17 on which an inner blade base 16 is mounted. The motor 15 reciprocates the inner blade base 16 via the eccentric cam. An inner blade (not shown) is connected to the inner blade base 16, and the inner blade reciprocates. Inner blade base 16
Has the upper end rod 16A project from the main body case 1A in a watertight manner. The space between the main body case 1A and the rod 16A is closed watertight by a freely deformable packing rubber 18.

The cap 20 is formed in a shape of an inner elliptical cylinder into which the entire body case 1A of the razor body 1 can be inserted, and the upper end thereof is closed. The inner shape of the lower end of the cap 20 is
It is molded substantially equal to the outer shape of the lower end of the main body case 1A. This is to prevent a gap from being formed between the cap 20 and the main body case 1A when the cap 20 is attached to the razor main body 1. Further, the cap 20 is formed to have a gap with the outer blade 3 so that the outer blade 3 does not contact the inner surface of the upper end when the cap 20 is attached to the razor body 1. When the outer blade 3 comes into contact with the inner surface of the cap 20 and collides, the outer blade 3 which is a thin metal blade is deformed or damaged. Further, the cap 20
Is formed in such a shape that the gap with the body case 1A gradually increases from the lower end to the upper end.

The cap 20 is attached to the razor body 1 with its lower edge abutting on the outer case 21 without any gap. As shown in FIG. 5, the cap 20 is provided with a mounting recess 25 on the inner surface at the lower end. The mounting recesses 25 are provided at both ends of the lower end of the cap 20. The cap 20 is fitted to the razor body 1 by fitting a mounting projection 26 provided on the outer peripheral surface of the razor body 1 into the mounting recess 25. The mounting projections 26 are provided at both ends of the razor body 1 and above the stopper flange 4 so as to face the mounting recess 25. With the cap 20 attached to the razor body 1, the lower edge is brought into contact with the stopper flange 4 of the razor body 1, and is attached at an accurate position.

Further, the electric razor has a stopper 20 provided on the razor main body 1 so that the cap 20 is attached to this position and the razor main body 1 does not enter the inside of the cap 20 by impact. The stopper flange 4 is located on the same plane as the upper surface of the outer case 21, and stops the cap 20 at the upper end of the outer case 21.

The outer case 21 has an elliptical cylindrical shape large enough to house the battery case 6, and has a cylindrical opening 9 at its upper end detachably connected to the razor body 1, and has a closed bottom. . As shown in the exploded perspective views of FIG. 3 and FIG.
B is fixed. Body part 21A of outer case 21
Is made of colored transparent plastic that allows the inside to be seen through. The main body 21 </ b> A is colored in a similar color to the razor main body 1. Further, the main body portion 21A of the outer case 21 is a matte surface having fine irregularities on the surface. However, the surface of the main body can be finished to a smooth mirror surface, or it can be made of non-transparent plastic.

The outer case 21 is connected to the insertion connection portion 8 provided at the lower end of the razor body 1 by inserting the cylindrical opening 9. At the position where the insertion connecting portion 8 of the razor body 1 and the cylindrical opening 9 of the outer case 21 face each other, a detachable locking structure for connecting the cylindrical opening 9 to the insertion connecting portion 8 by a locking structure. Is provided. By the detachable locking structure, the outer case 21 is detachably connected to the razor body 1 so as not to fall off.

The detachable locking structure of the electric razor shown in FIG.
It is composed of a locking projection 22 provided on the insertion connecting portion 8 and a locking hole 23 provided on the opening edge of the outer case 21 and for inserting the locking projection 22. Locking projection 22
Are provided at four corners of the insertion connecting portion 8 so as to protrude.
Engagement hole 23 provided in cylindrical opening 9 of outer case 21
Is opened at a position where the locking projection 22 can be inserted with the outer case 21 connected to the insertion connecting portion 8.
The locking hole 23 is provided to penetrate the main body 21A of the outer case 21 from the inside to the outside.

In the attachment / detachment locking structure shown in this figure, a locking projection 22 is provided on the insertion connecting portion 8, and a locking hole 23 is provided on the cylindrical opening 9. The electric shaver of the present invention does not specify the detachable locking structure to this structure. The detachable locking structure is a locking structure in which the insertion connection portion is inserted into the cylindrical opening, and is a hooking structure. All structures that can be detachably connected, for example, by providing irregularities on the inner surface of the cylindrical opening, and inserting and connecting. It is also possible to adopt a structure in which the projections and depressions are fitted to the projections and depressions.

The outer case 21 has a decorative ring 21 B fixed along the outer peripheral surface of the opening edge of the cylindrical opening 9. As shown in the exploded perspective view of FIG. 6, the decorative ring 21B is made of plastic and is formed by molding with plastic other than the main body 21A of the outer case 21.
The decorative ring 21B is attached to the main body 21 of the outer case 21.
Molded with an opaque plastic that is similar in color to A. The decorative ring 21B is formed to have a width that can cover the detachable locking structure. The decorative ring 21B is formed in a shape that covers the upper edge of the cylindrical opening 9, and is fixed to the outside of the upper end of the main body 21A of the outer case 21.

The decorative ring 21B can be fixed to the main body of the outer case by bonding or welding, but the decorative ring 21B of FIG. 21A. The decorative ring 21B having this structure can be fixed very easily. FIG. 7 is a cross-sectional view of a portion connecting the decorative ring 21B to the main body 21A of the outer case 21 in an undercut structure. A protruding ridge 19 is provided so as to protrude from the inner surface of FIG. A hook groove 24 for fitting the ridge 19 is provided on the outer surface of the cylindrical opening 9 of the main body 21A. The ridges 19 and the catch grooves 24 do not necessarily need to be provided on the entire circumference of the decorative ring 21B and the cylindrical opening 9. The main body 21A of the outer case 21 in FIG. 6 has a catch groove 24 between the locking holes 23 and in a straight portion of the cylindrical opening 9. The decorative ring 21B having this structure can be easily fixed by inserting it into the cylindrical opening 9. Further, in a fixed state, the decorative ring 21B does not come off from the main body 21A of the outer case 21.

The outer case 21 is provided with a stopper recess 5 into which the stopper flange 4 of the razor body 1 is fitted. The stopper flange 4 and the stopper recess 5 mount the outer case 21 at a fixed position on the razor body 1 and mount a cap 20 attached to the razor body 1 at a fixed position. The outer case 21 having this structure is mounted in a fixed position of the razor body 1 by inserting the locking projection 22 into the locking hole 23 and further inserting the stopper flange 4 into the stopper recess 5.

The outer cover 2 composed of the outer case 21 and the cap 20 can be made of the same color and of a transparent plastic so that the inside can be seen. When the electric razor is not in use, the razor body 1 has a cap 2
0 and is carried with the cap 20 and the outer case 21 attached. The electric razor in which the outer cover 2 composed of the cap 20 and the outer case 21 is colored in the same color and is formed of transparent plastic can have a beautiful see-through style in appearance. Also, cap 2
There is a feature that the inside can be sufficiently protected by the 0 and the outer case 21.

The electric shaver having this structure is used by attaching a battery case, an outer case and a cap as follows.

With the outer case 21 removed, the battery case 6 is detached from the main case 1A. After attaching the battery case 6, the outer case 21 is attached. The outer case 21 is fitted at a fixed position by fitting the locking projection 22 of the razor body 1 into the locking hole 23 of the outer case 21 and further fitting the stopper flange 4 into the stopper recess 5.
Use an electric razor in this state. After use, the cap 20 is attached to the main body case 1A. The cap 20 is inserted until the lower end contacts the stopper flange 4 of the main body case 1A. In this state, the cap 20 is
Close contact with B without gap.

[0038]

The electric razor of the present invention has a feature that the razor body can be prevented from entering the cap even if the razor is dropped with the cap attached, and the outer blade and the like can be protected by the cap. That is, the electric razor of the present invention includes a cap for inserting the whole of the razor body, and an outer case attached to the lower part of the razor body, and the cap mounted on the razor body is connected to an outer blade of the razor body. This is because there is a gap between them, and a plurality of divided stopper flanges protrude from the lower part of the razor body. In the electric razor having this structure, the stopper flange provided on the razor main body reliably prevents the razor main body from entering the inside of the cap due to a dropping impact. Therefore, the electric razor of the present invention has a feature that, even when the cap is lowered with the cap down, the cap and the outer blade of the razor body are maintained in a state where there is a gap between the cap and the outer blade and the like. Is done.

Further, the electric shaver of the present invention has a feature that it can have a clean and beautiful appearance. This is because the electric razor of the present invention has a stopper recess in the outer cover, into which the stopper flange is fitted. In the electric shaver having this structure, the stopper flange is fitted inside the stopper concave portion provided in the outer cover, and does not appear outside when the outer cover is attached. Therefore, the electric shaver of the present invention can have a beautiful appearance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a cap is mounted on a conventional electric shaver.

FIG. 2 is an exploded perspective view of the electric razor shown in FIG.

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

FIG. 4 is an exploded perspective view of the razor body of the electric razor shown in FIG. 3;

FIG. 5 is an enlarged sectional view of a main part of the electric shaver according to the embodiment of the present invention.

FIG. 6 is a perspective view showing a state in which the outer case is disassembled into a main body and a decorative ring.

FIG. 7 is an enlarged cross-sectional view showing a connection structure between a main body of the outer case and a decorative ring.

[Explanation of symbols]

1 ... razor body 1A ... body case 1B ...
Lid case 2 ... Outer cover 3 ... Outer blade 4 ... Stopper flange 5 ... Stopper recess 6 ... Battery case 7 ... Inner blade 8 ... Insertion connecting part 9 ... Cylindrical opening 10 ... Watertight connecting part 11 ... Packing 12 ... Fitting connection Part 13: hooking projection 14: hooking hole 15: motor 16: inner blade base 16A: rod 17: inner frame 18: packing rubber 19: convex ridge 20: cap 21: outer case 21A: main body 21B
... Makeup ring 22 ... Locking projection 23 ... Locking hole 24 ... Hook groove 25 ... Mounting recess 26 ... Mounting protrusion

Claims (4)

[Claims] A razor body (1) having a built-in drive mechanism for reciprocating an outer cutter (3), an inner cutter (7) and an inner cutter (7), and substantially the entire razor body (1). A cap (20) that is detachably attached in the inserted state, and an outer case (21) that is attached to the lower part of the razor body (1), formed by an outer case (21) and a cap (20) Outer cover
The razor body (1) is mounted inside (2), and the outer cover (2)
With the razor body (1) attached to the shaver, a gap is formed between the outer blade (3) and the cap (20). The razor body (1) is prevented from being inserted into the cap (20) by the stopper flange (4). 4) but outer cover (2)
An electric razor characterized by being configured to be fitted into a stopper concave portion (5) provided in the electric shaver. The outer case (21) is provided with a stopper flange (4).
The electric shaver according to claim 1, wherein a stopper concave portion (5) into which the groove is fitted is provided at an upper end opening. 3. The electric razor according to claim 1, wherein the cap (20) and the outer case (21) are oval cylindrical, and the stopper flanges (4) are provided at both ends of the razor body (1). . 4. The electric razor according to claim 1, wherein the outer case (21) is attached to the watertight razor body (1) in a watertight manner.