JPS6010532Y2 - electric razor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric shaver, and relates to a position structure for mounting a switch operating knob.

Conventional electric razors of this type have a structure in which a razor blade assembly is attached to the upper end of the main body, and a switch is attached to the upper part of the outer circumferential surface of the main body.Usually, the electric motor that operates the movable blade of the razor assembly is attached to the razor blade. It is installed on the top of the main body close to the assembly. With this structure, it is necessary to create a space inside the main body for arranging the switch located around the outer periphery of the motor. This is an obstacle to miniaturization.

Further, in order to install the switch without changing the diameter of the main body, it is necessary to form a space in the length direction of the main body in which the switch is disposed, and this space causes the problem that the main body becomes long.

The present invention was developed in view of the above problem, and the switch contact piece and operation knob are provided in the cut-out part of the battery holder that houses the battery installed in the main body, making it possible to make the main body extremely thin without increasing the length. To provide an electric shaver that is compact and easy to operate, especially as a razor for women.

In the electric shaver of the present invention, a razor blade assembly having a movable blade is attached to the upper end, an electric motor for operating the movable blade is attached to the inner upper edge, and a battery holder for storing a battery for powering the electric motor is provided at the inner lower part. a cylindrical main body, a cut surface is formed on the outer peripheral surface of a battery holder provided on the main body, and a switch contact piece of a switch for opening and closing the power supply circuit of the electric motor is attached to the cut surface part. The device is characterized in that an operating knob for actuation is movably disposed, and the operating portion of the operating knob faces the outer circumferential surface from the opening of the main body.

Next, the structure of an embodiment of the present invention will be explained with reference to the drawings.

1 is a razor body, which includes a lower body member 2 and an upper body member 3.
The lower main body member 2 is formed of synthetic resin or the like into an elongated tube shape with a bottom, and is open at the top end and has a mounting hole 4 formed at the bottom.

Further, an opening 5 is formed in the lower part of the circumferential side of the lower main body member 2.

Further, the upper main body member 3 is molded from synthetic resin or the like into an elongated cylindrical shape with an open lower end surface.

A protrusion 7 in which a shaft insertion hole 6 is formed is formed in the center of the upper end surface of the upper main body member 3, and a locking pawl 8 is provided on the outside of the protrusion 7.

Next, a motor 9 is fitted into the upper main body member 3, and the rotating shaft 10 is projected from the shaft insertion hole 6.

The upper end of this electric motor 9 is fixed to the upper body member 3 with a screw 11.

Next, 12 and 13 are battery holders, each made of an insulating material such as a synthetic resin and formed into a cylindrical shape with an outer diameter that fits into the main body members 2 and 3, and the upper battery holder 12 has an open bottom. At the lower opening edge, there is a hanging piece 14 in the shape of an abbreviation downward.
15 are protruded symmetrically from each other, and each of the hooking pieces 14
．． A latching protrusion 17 is provided at the tip of the latching edge 16 of 15 in a protruding manner.

This upper battery holder 12 is fixed to the lower end of the electric motor 9 with a screw 18, and the hooking pieces 14, 15 of this upper battery holder 12 are located inward from the lower end opening of the main body member 3. It has become so.

Further, the lower battery holder 13 has an open top surface, and abbreviated hooking pieces 19 and 20 are provided symmetrically and protruding upward from the upper edge of the opening. 19.20
A latching protrusion 22 is provided protrudingly from the tip of the latching edge 21 .

Also, a cut surface 23 is formed which is located in the middle of the protruding position of the hooking pieces 19 and 20 of the lower battery holder 13 and is cut leaving the upper end. A kerf 24 is formed at the upper end.

The lower end surface of the lower battery holder 13 is fixed inside the main body member 2 with a screw 25 inserted through the mounting hole 4 of the lower main body member 2.
9.20 protrudes from the upper end opening surface of the lower main body member 2,
The latching pieces 19, 20 of the lower battery holder 13 are inserted through the lower end opening surface of the upper body member 3, and the latching pieces 19.2
0 between the hooking pieces 14 and 15 of the upper battery holder 12, and rotate the lower main body member 13 in one direction (clockwise in Figure 3).
By rotating the battery holders 12 and 13, the locking edges 16 and 21 of the locking pieces 14, 15, 19 and 20 of the battery holders 12 and 13 engage with each other, and both the main body members 2 and 3 are joined to form the main body. 1 is configured, and this main body 1 has both main body members 2,
It is divided into two parts by the battery storage section 26 of No. 3.

That is, a battery storage section 26 is formed within the main body 1 by both holders 12 and 13.

Further, reference numeral 27 denotes a fixed contact piece whose base end 28 is formed into an annular shape, and into which the rotating shaft 10 of the electric motor 9 is inserted.

Contact piece portions 30 and 31 are integrally provided to protrude downward from opposing positions on the outer peripheral edge of the proximal end of the fixed contact piece 27.

This fixed contact piece 27 has its base end 28 connected to the upper body member 3.
The motor 9 and the fixed contact piece 27 are fixed to the upper main body member 3 by the screw 11 which is sandwiched between the inner surface of the upper end and the upper end part of the electric motor 9, and the contact portion 30.31 of the fixed contact piece 27 is It is attached to the inner surface of the upper main body member 3.

Reference numeral 32 denotes an anode piece, which is provided on the upper end surface of the upper battery holder 3 so that the anode 34 of the power dry cell 33, which has a smaller diameter than the electric motor 9 fitted into the upper battery holder 12, comes into contact with it. The anode piece 32 is connected to one terminal of the electric motor 9, and the fixed contact piece 27 is fixed to the other terminal of the electric motor 9 with the screw 11.

Reference numeral 35 denotes a cathode piece, and the cathode piece 35 has a base end 36 formed in an annular shape, and an elastic curved part 37 curved in an arc shape from the outer periphery of the base end 36 is integrally formed. A contact piece portion 39 is formed on the lower battery holder 13 and is contacted by the cathode 38 of the dry battery 33 inserted into the lower battery holder 13.

The contact piece 39 of the cathode pole piece 35 is inserted into the inner bottom surface through the cut groove 24 of the lower battery holder 13 and positioned, and the curved part 37 is led out from the cut groove 24 to form the proximal end 36.
is sandwiched between the bottom surface of the lower battery holder 13 and the inner bottom surface of the lower main body member 2, and the lower battery holder 13 is secured with the screw 25.
It sticks together.

Next, 40 is a switch contact piece that constitutes a switch with the fixed contact piece 27, and this switch contact piece 40 has a width arranged in the cut groove 24 of the cut groove 13 of the lower battery holder 13, and has a lower end portion. An elastic joint portion 41 is formed in a curved manner and comes into contact with the curved portion 37 of the cathode piece 3.

Further, the fixed contact piece 27 is attached to the tip of this switch contact piece 40.
A contact portion 42 that is brought into contact with and separated from one of the contact piece portions 30 and 31 is formed in a bulging manner.

Further, a clamping piece 43 is formed in an orthogonal shape on the upper part of the switch contact piece 40 to be slidably clamped between the cut surface 23 of the lower battery holder 13 and the inner surface of the lower main body member 2. .

Furthermore, a locking hole 44 is formed in the center of this switch contact piece 40.

Reference numeral 45 denotes an operation knob, which has an outer surface formed in an arcuate shape so as to be able to slide in the axial direction along the inner surface of the lower body member 2, and is slidably engaged with the opening 5. The portion 46 is formed to protrude in a circular shape.

A protruding shaft 47 that is engaged with the locking hole 44 of the switch contact piece 40 is formed protruding from the inner surface of the operating knob 45 .

The operating knob 45 is held between the cutting surface 23 of the lower battery holder 13 and the inner surface of the lower main body member 2 so as to be slidable in the axial direction. The switch contact piece 40, which engages the locking hole 44 with the shaft 47, is adapted to be moved up and down.

This switch contact piece 40 is connected to the latching pieces 14 and 15 of the upper battery holder 12 and the latching pieces 19 and 2 of the lower holder 13.
0, the switch contact piece 40 comes into contact with and separates from either one of the contact piece parts 30, 3m of the fixed contact piece 27.

That is, there is a two-way engagement mode in which one of the latching pieces 19 of the lower battery holder 13 is engaged with one of the latching pieces 14 or the other latching piece 15 of the upper holder 12. In either of the two-way engagement modes of both main body members 2 and 3, the switch contact piece 40 can be moved toward or away from either of the contact piece portions 30, 31 of the fixed contact piece 27.

Reference numeral 48 denotes a razor blade assembly, which is detachably connected to the upper end of the main body 1 with an engaging claw 8 and is attached to the rotating shaft 1 of the electric motor 9.
The movable blade 5 is engaged with the clamper A49 formed at 0.
0 and a fixed blade 51 on which the movable blade 50 slides are incorporated, and the movable blade 50 is reciprocated by the drive of the electric motor 9.

Next, the operation of this embodiment will be explained.

Is the battery 33 the main body member 2? 3 and engages the hooking pieces 14, 15, 19, 20 of the battery holders 12, 13 of both main body members 2, 3, the dry battery 33 is held by the connection of both main body members 2, 3. It is housed in a battery housing section 26 formed between both battery holders 12 and 13.

Also, the hooking pieces 14 and 15 of both battery holders 12 and 13
, 19, 20, the latching protrusions 17, 22 are engaged with each other, and the dry battery 33 is connected to the contact piece 39 of the cathode piece 35.
is pressed by the elasticity of the curved portion 37, so that the latching protrusion 17.
22 is retained in a rotational manner without being disengaged, and both main body members 2 and 3 are prevented from coming out of engagement.

Also, the switch contact piece 40 is connected by connecting both main body members 2 and 3.
is located at a position where it can contact either one of the contact pieces 30, 31 of the fixed contact piece 27.

When the operating knob 45 is moved upward, the switch contact piece 40 is engaged with the protruding shaft 47, and the clamping piece 43 is moved along the cut groove 24 of the lower battery holder 13. , the contact portion 42 is brought into contact with one of the contact portions 30 and 31 of the fixed contact piece 27, and is connected to the anode 34 of the dry battery 33.
, the electric motor 9, the fixed contact piece 27, the switch contact piece 40, the cathode piece 35, and the cathode 38 of the dry battery 33 form a circuit, the electric motor 9 is driven, and the movable blade 50 is reciprocated to perform a shaving operation.

Further, when the operating knob 45 is lowered, the switch contact piece 40 is lowered and is released from contact with the fixed contact piece 27, and the electric motor 9 is stopped.

When the switch contact piece 40 moves, its articulated portion 41
is slid into engagement with the curved portion 37 of the cathode piece 35, providing a sense of motion and maintaining the open or closed state of the switch.

As shown in FIG. 4, when shaving armpit hair, the main body 1 can be gripped in the opposite direction and the switch operating knob 45 can be operated.

In the above embodiment, the razor blade assembly 48 is a movable blade 50.
Although the structure in which the movable blade moves back and forth has been described, the present invention can also be applied to a razor blade assembly having a structure in which a rotating inner cutter as a movable blade slides along the inner surface of a reticulated outer cutter.

According to the present invention, the switch contact piece and the operating knob are provided on the cut surface portion formed on the battery holder in the main body with the razor blade assembly attached to the upper end. The operating knob can be installed in a position that avoids the storage position of the electric motor by utilizing the thickness of the battery holder, and there is no need to create a space around the outside of the electric motor.
The main body can be made extremely thin without increasing its length, and the switch mechanism can be installed on the inner surface of the operating knob, simplifying the structure. The switch can be easily operated when gripped in the opposite direction, and is particularly suitable for women's use.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an electric shaver showing an embodiment of the present invention, Fig. 2 is a sectional view of the same, Fig. 3 is an exploded perspective view of the same, and Fig. 4 is an exploded perspective view of the same.
The figure is a perspective view showing the state in which the same as above is used. 1...Body, 9...Electric motor, 13...
... Battery holder, 27 ... Fixed contact piece constituting the switch, 40 ... Switch contact piece, 45.
. . . Operation knob, 48 . . . Razor blade assembly, 50 . . . Movable blade.

Claims (1)

[Scope of utility model registration request] A cylindrical body having a razor blade assembly having a movable blade attached to the upper end, an electric motor for operating the movable blade attached to the inner upper end, and a battery holder for storing a battery for powering the electric motor provided at the inner lower part, A cut surface portion is formed on the outer peripheral surface of a battery holder provided in the main body, and a switch contact piece of a switch for opening and closing the power supply circuit of the electric motor is formed on the cut surface portion;
An electric shaver characterized in that an operating knob for operating the switch contact piece is movably disposed, and the operating portion of the operating knob faces the outer peripheral surface from the opening of the main body.