JPS6223586B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a thin electric razor.

FIG. 1 shows a conventional rotating blade type electric razor. In the figure, 1' is the outer blade of the rotary blade, 2' is the inner blade of the rotary blade, 3' is the outer blade frame, 4' is the joint, and 5' is the outer blade of the rotary blade.
is the output shaft of a small motor, 6' is a small DC motor,
7' is a voltage application terminal for a small DC motor, 8' is the body of the electric razor, and 8a' is a part that protrudes on the circumference to screw the outer blade to the razor body. The protruding piece of the cut razor body,
8b' is the wall of the molded product that separates the blade part of the electric razor from the motor/battery part, 9' and 9a' are the primary and secondary battery parts, 10' is the lid part of the razor body, and 11' is the inner blade. A space 8b' is provided between the walls of the molded product, and 12' is a start/stop switch for the electric razor. Reference numeral 13' indicates a lead wire connecting a motor terminal power source (primary or secondary battery) via a starting switch.

To explain the structure in more detail, the rotary blade outer cutter 1' is caulked and fixed to the outer cutter frame 3', a part of the outer cutter frame 3' is machined with a male thread, and the protrusion of the razor body is A female thread is cut in the installation piece 8a', and it is fixed to the razor body 8' using a screw fixing method. An inner blade is stored inside the outer blade of the rotating blade, and the beard is inserted between the outer blade and the inner blade to cut it. The inner cutter is rotated by receiving the rotational force of the DC motor through a joint 4' that is press-fitted and fixed to the output shaft 5' of the small DC motor. A small DC motor is attached to the razor body 8', and the motor and the rotary blade are separated by a molded wall 8b' of the razor body 8'.
The space formed between the wall portion 8b' of the molded razor body and the inner blade becomes a beard waste collection portion. The voltage terminal 7' of the small DC motor and the electrodes of the batteries 9' and 9a' are wired inside the razor body by lead wires, and the motor terminal and the power supply are connected via the razor's start/stop switch. It constitutes a circuit. Therefore, when electric razors are turned on and off,
Start and stop when off. A lid 10' which also serves as a battery cover is attached to the razor body to constitute an electric razor.

In the above configuration, (a) Since the small DC motor for driving the rotary blade (inner blade) is large, the motor part and the blade parts of the inner and outer blades have molded wall parts inside the electric razor body. separated. Therefore, the motor part and the battery part of the electric razor are arranged in the part of the electric razor that the user holds, and the battery part is made of AA to 5 AA.
Uses dry batteries or rechargeable batteries.
With this configuration, the electric razor can be turned on.
The OFF switch is connected by a lead wire that forms a closed circuit with the start/stop switch section from the terminal of the motor section through the electrode of the battery. The above-mentioned components are the general wiring system and switching system of conventional electric razors.

(b) In addition, in conventional electric razors, the rotary blade section is separately constructed on top of the small motor section, which makes it difficult to create a small and thin electric razor.

(c) Also, the razor's beard waste collection section must be provided on the wall of the molded product between the inner blade section and the motor section. This is because the small motor is larger than the blade and no attempt has been made to make it thin.

The present invention has been proposed to improve the above-mentioned drawbacks.

Next, an embodiment of the present invention will be described with reference to FIGS. 2A and 2B to FIG. 4.

FIG. 2 shows the electric razor of the present invention in the on state, that is, when shaving the beard. A is a front sectional view, B is a plan view, and FIG. It shows the off state, with A being a front sectional view and B being a plan view. FIG. 4 is a schematic perspective view of the entire electric razor of the present invention. In the figure, 1 is an outer cutter, 2 is an inner cutter, and 3 is an outer cutter frame. The outer cutter is caulked and fixed to the outer cutter frame to form a rotary outer cutter. 4
5 is a joint, 5 is an output shaft of a motor, and 6 is an operating portion having a switch function of the present invention. A small flat motor 12 is fixed within a switch handle 7 having an operating portion 6 protruding from a motor housing chamber 20. 10 is a beard waste collection part of an electric razor. 9 is a threaded portion for attaching the outer blade to the razor body. 11 is the back cover of the razor body,
This back cover is opened and the thin flat battery 15 is housed. 12 is a small flat motor, 13 and 13a
is a terminal fixed to a small flat motor,
It is provided so as to protrude into the cavity 17 from the bottom surface of the motor. 14 is a bearing, 15 is a thin flat battery, 1
Reference numerals 6 and 16a denote electrodes of the battery, which are provided on the top surface of the battery facing the cavity 17. Reference numeral 17 denotes a gap, that is, a space, provided in a part of the razor body 8 made of a molded product, for movable terminals.

Next, the configuration of the present invention will be explained in more detail.

The electrodes of the 15 thin flat batteries are arranged on the same plane of the battery. The electrodes are arranged symmetrically at an angle of 180° with respect to the center. This thin flat battery is disposed on the back cover of the electric razor case 11, and the electrode portion is provided facing the empty space 17 within the razor body 8. The razor body 8 has a bearing protrusion 14 for a small flat motor, and motor terminals 13, 13a.
A vacant space 17 is provided for the installation of the.
Terminal 13 fixed to the small flat motor,
13a are arranged at an angle of 180° with respect to the bearing protrusion 14 of the motor. The thin flat battery is connected to the razor case 11 and the razor body 8.
The electrode part is sandwiched between the razor body 8 and faces the cavity 17. The small flat motor is now installed in the switch handle 7 with the bearing protrusion 14 inserted into the bearing protrusion receiving hole of the razor body. This switch handle is provided with an operating section 6 on the outside, and this operating section protrudes outward from a portion of the razor body in which the outer blade attachment screw section 9 and a portion of the outer blade frame 3 are removed.

The operation part 6 of the switch handle 7 can be moved within the range where the outer blade frame and the outer blade mounting screw part of the razor body are partially removed.
By rotating the operating portion 6 to the left or right, the small flat motor 12 is moved with reference to the protruding portion of the bearing, and the terminals fixed to the motor are also rotated accordingly.

When the operating section is now in the on position as shown in FIG.
6, 16a, the electric razor is turned on, the motor rotates, and the beard is shaved.

Furthermore, when the operating section 6 is moved to the OFF side as shown in FIG. The electric razor is turned off.

As described above, by moving the operating part 6 protruding from a part of the switch handle 7, the small motor 12 rotates around the bearing 14,
It is connected to or separated from the electrodes 16, 16a of the thin flat battery.

Conventionally, the electrodes of the battery and the input terminal of the small motor were connected by a lead wire via an on/off switching element, but according to the present invention, an electric razor without a switching element and without a lead wire for wiring is possible. can be configured. In addition, the small flat motor is entirely housed in the outer blade 1 and outer blade frame 3 of a conventional electric razor.
0 is also different from the conventional electric razor, as the gap is provided between the outer periphery of the small flat motor and the outer cutter frame 3, making it possible to achieve a size and thickness unimaginable with conventional electric razors.

The electric razor of the present invention has approximately the same planar shape as a thin flat battery, making it possible to reduce the size and thickness to near the limit.

5A and 5B show another embodiment of the present invention. In this embodiment, an opening 18 for discharging beard waste is provided in a part of the side of the case 11, and
A feature is that a partition wall 19 is provided on the side of the switch handle 7 so that the opening can be opened and closed. In FIG. 5, the razor is in the on state, and in FIG. 6, the razor is in the on state and the operating portion 6 is moved to the clean position. In this state, the partition wall 19 is
It can be opened to expel beard debris to the outside. The other configurations are almost the same as the first embodiment.

According to the electric razor according to the present invention, (a) a separate switching element is not required as in the conventional case, and a wiring lead wire for connecting the motor terminal section and the battery section is also unnecessary.

(b) The motor body, which rotates around the motor's bearings, turns on and off the motor terminals and the electrodes of the thin flat battery using the operating section of the switch handle attached to the motor body, thereby starting and stopping the electric razor. Therefore, the shape of the electric razor can be made extremely thin compared to conventional electric razors.

It has the following effects.

[Brief explanation of the drawing]

FIG. 1 shows the conventional electric razor, FIGS. 2A and 2B show the electric razor of the present invention in the ON state, and FIGS. 3A and 3B show the same OFF state, respectively.
FIG. 4 shows a perspective view. 5A and 6B show other embodiments, FIG. 5A is a front sectional view, and FIG. 5B is a plan view. 1...Outer cutter, 2...Inner cutter, 3...Outer cutter frame, 4...Joint, 5...Motor output shaft, 6...
Operation part, 7...Switch handle, 8...Razor body, 9...Screw part, 10...Beard waste collection part, 1
1...Back cover of the razor body, 12...Motor, 1
3, 13a...Motor terminal, 14...Bearing, 15
...Thin flat battery, 16, 16a...Battery electrode, 17...Vacancy, 18...Opening for discharging beard scum, 19...Partition wall provided in switch handle, 2
0...Motor accommodation chamber.

Claims (1)

[Claims] 1. An outer blade of the razor is fixed to the upper part of the electric razor body, and an inner blade rotated by a motor is arranged inside the outer blade, and the motor has an operating part that protrudes outward from the electric razor body. A pair of terminals fixed to the motor are respectively provided through a space below the motor housing chamber so as to be rotatable in the motor housing chamber, and a thin flat plate is provided at the bottom of the electric razor body. A battery is arranged, and the positive and negative poles of the battery are located at positions where they can be turned on and off by operation of the motor terminal provided through the space and the operation part. A thin electric razor.