JPS6028382Y2 - electric razor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric shaver in which an inner cutter slides in sliding contact with an inner surface of an outer cutter and moves back and forth within an outer cutter formed in a semicylindrical dome shape.

Figures 1 and 2 show a conventional electric shaver of this type, which includes a motor (not shown in Figures 1 and 2) and two batteries inside the main body case 7. 6 and 6 are arranged in parallel with each other with a partition wall 5 in between, in order to reduce the overall thickness.However, a battery cover 8 for replacing the battery 6 is placed over an opening 9 provided on the front side of the main body case 7. Since the configuration is such that the locking receivers 11 that engage the locking pieces 10 protruding from the battery cover 8 are located at the lower part of the battery 6 and the front surface between the motor and the battery 6, respectively, the main body case 7 There is a problem that the lower part of the main body case 7 corresponding to the lower part of the battery 6, which is longer than the receiving motor, bulges downward and the height dimension of the main body case 7 becomes long. In both cases, the thickness of the main body case 7 also increases, which poses a major constraint on miniaturization of the main body case 7.

The present invention has been proposed in view of the above-mentioned points, and the locking part between the main body case and the battery cover is located at the lower part of the motor, which is shorter in height than the battery, and is miniaturized for ease of use. It is an object of the present invention to provide an electric shaver that can be substantially miniaturized by providing the shaver on the side of the main body case, which is related to the width dimension, and which requires less width.

The present invention will be explained in detail below with reference to embodiment figures.

3 to 10 show an embodiment of the present invention, in which the inner cutter 1
A drive element 3 for direct drive (hereinafter referred to as DD) for reciprocating the outer blade 2 by sliding it in contact with the inner surface of the outer blade 2, and a drive element 3 disposed below the drive element 3 at a position shifted in parallel from the center of the drive element 3. The motor 4 and the two batteries 6, which are arranged in parallel on the side of the motor 4 with a partition wall 5 in between, are housed in a main body case 7, and the main body case 7 has a pair of halves. It is formed by split housings 12A and 12B.

The housing 12A has three contact springs 13A, 13B, 1
3C is fixed in advance by a method such as heat sealing.

The motor 4 is housed and fixed in the motor accommodating portion 14 of the housing 12A with its terminals in contact with the contact springs 13A and 13C.

The motor 4 is provided with an eccentric balancer 15 and an eccentric shaft 16, and the eccentric shaft 16 is inserted into and engaged with the fitting hole 17 of the DD driver 3.

The driver 3 includes a bush 18 for attaching the inner cutter 1, the fitting hole 17 into which the eccentric shaft 16 is inserted and engaged, a leg 19 formed to be freely flexible in the reciprocating direction, and the driver. 3 itself into the main body case 7, the fixing part 20 is inserted into the groove 21 of the housing 12A.
The drive element 3 is fixed within the main body case 7 by being press-fitted and sandwiched between the housings 12A and 12B.

Reference numeral 22 denotes an outer cutter frame, which is fixed to the upper end of the main body case 7 via a lock spring 23 and a lock button 24, and the outer cutter 2 is fixed to this outer cutter frame 22. The outer cutter 2 is fixed to this outer cutter frame 22, and the inner cutter 1 is brought into sliding contact with the inner surface of this outer cutter mold.
5 and are fitted together.

A switch bundle 26 is fixed to the housing 12A by a hook 27.

The battery cover 8 is placed in the opening 9 formed in the lower half of the main body case 7 and in the lower side of the main body case 7.
When opened, the lower and side lower parts of the battery compartment 28 of the main body case 7 are opened, allowing the battery 6 to be replaced.The battery cover 8 has a shorting fitting 29 that is an insert bottom type or a heat seal, etc. When the battery cover 8 is attached to the main body case 7, the battery 6 inside the main body case 7 is pressed and fixed by the battery cover 8.

In addition, when attaching the battery cover 8 to the main body case 7, the groove-shaped locking receiver 11 provided at the lower side of the main body case 7
and a rib-shaped locking receiver 11 provided in a space corresponding to the lower part of the motor 4 so as to protrude toward the lower end of the battery 6 and separated from the lower end of the motor 4 by an extension of the partition wall 5. , the battery cover 8 is fixed to the main body case 7 by locking the hook-shaped locking pieces 10, 10, respectively.

30 in the figure is a protective cap, and this protective cap 30
is equipped with a brush 31 and a mirror 32.

When the batteries 6 are inserted into the opening 9 of the main case 7 with the battery cover 8 removed, the positive and negative terminals of both batteries 6 come into contact with the contact springs 13B and 13C, respectively.

When attaching the battery cover 8 to the opening 9 in this state, by sliding the battery cover 8 parallel to the bottom of the main body case 7, the locking pieces 10.10 at both ends of the battery cover 8
are fitted into and engaged with the locking receivers 11, 11 on the main body case 7 side, respectively, and thereby the battery cover 8 is locked on the main body case 7, contact pressure is ensured by the reaction force of the contact spring 13Bi3C, and a short circuit occurs. A circuit is formed via the metal fittings 29.

Note that when replacing the battery 6, by sliding the battery cover 8 parallel to the bottom of the main body case 7, the engagement between the locking piece 10 and the locking receiver 11 is disengaged, and the battery cover 8 is removed. become.

As described above, the present invention provides locking receivers at the opening edges of the protrusion below the motor of the main body case and the lower side of the battery, and also provides a locking receiver below the motor whose lower end is located above the lower end of the battery. The locking receiver is formed to protrude laterally toward the lower end of the battery, and is partitioned from the lower end of the motor by an extension from the partition wall, and the battery cover is engaged with both of the locking receivers. Since a locking piece is provided for attaching the battery cover to the main body case, the locking piece and the locking receiving part for attaching the battery cover to the main body case are required to be miniaturized in terms of free space below the motor and practicality. If it is installed on the side of the main body case, which is related to the small width dimension, and the thickness of the battery cover can be reduced below the battery, there will be no increase in thickness, and the height of the main case This contributes to miniaturization and thinning of the motor by making it smaller in both the width direction and the thickness direction.Furthermore, since the locking part at the bottom of the motor is separated from the lower end of the motor by a partition wall, Although the battery cover is located below the motor, the lower end of the motor is not exposed when the battery cover is removed.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a conventional battery with the battery cover removed, Fig. 2 is a sectional view of an improved version, Fig. 3 is an exploded perspective view of the present invention-embodiment, and Fig. 4 is a front view of the same as above. Figure 5 is an enlarged cross-sectional view of the same as above, Figure 6 is a front view of the same as the above, Figure 7 is a bottom view of the same as the above, and Figure 8 is the bottom view of the same as the above with the battery cover removed. 9 is an enlarged cross-sectional view taken along line A-A in FIG. 4, and FIG. 10 is an enlarged cross-sectional view taken along line B-B in FIG.
1 is an inner blade, 2 is an outer blade, 3 is a driver, 4 is a motor, 5 is a partition wall, 6 is a battery, 7 is a main body case, 8 is a battery cover, 9 is an opening, 10 is a locking piece, 11 is a It is a locking receiving part.

Claims (1)

[Scope of utility model registration request] A drive element for direct drive that reciprocates the inner cutter by sliding it on the outer cutter, a motor placed parallel to the center of the drive element, and a partition wall connected to the motor. The installed battery, the above driver, motor,
When the part that accommodates the battery, etc. and corresponds to the lower end of the motor protrudes downward from the lower end of the motor, there is a main body case with the part corresponding to the lower end and lateral lower part of the battery opened, and the lower end and lateral lower part of the battery. A battery cover is attached to the opening of the corresponding main body case, and the protrusion below the motor and the lower side of the battery of the main body case each have a locking receptacle at the edge of the opening to which the battery cover is attached. As long as a department is set up,
A locking part provided below the motor whose lower end is located above the lower end of the battery is formed to protrude laterally toward the lower end of the battery, and is separated from the lower end of the motor by an extension from the partition wall. and the battery cover is provided with a locking piece that engages with both of the locking receivers.