JPH0114302Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a rotary electric shaver that is miniaturized.

[Technical background of the invention and its problems]

A conventional rotary electric shaver is shown in FIG. In the figure, 1 is a razor body with an outer blade attachment part 2 at the top, and a motor storage part 3 in the center.
The upper and lower parts are respectively formed into a battery storage section 4. A cylindrical motor 5 having a long axial dimension is housed in the motor accommodating part 3, and a cylindrical dry cell battery 6 is housed in the battery accommodating part 4 so as to be freely inserted and taken out. Then, the outer blade mounting part 2
An outer cutter body 7 is detachably attached to the rotary shaft 5a of the motor 5, and an inner cutter body 8 is supported on the rotating shaft 5a of the motor 5.

However, in this rotary electric shaver, the dry battery 6 is arranged so as to overlap with the underside of the motor 5, so the overall length L is large and the dry battery 6 is large even though the dry battery 6 is installed horizontally. Since it is placed horizontally, the maximum width W is also large. Therefore, conventional razors are large in size, and the cost of materials for the razor body 1 is also high.

Therefore, the present inventor proposed a flat motor 9 with a short axial length and a large diameter, as shown in FIG.
and a rechargeable flat battery 10, which is usually called a button battery, are housed in the razor body 1,
It is possible to omit the battery storage section (reference numeral 4 in FIG. 1) that was conventionally required in the razor body 1.
Invented a rotary electric razor.

However, in this case, the costs of the flat motor 9 and battery 10 are quite high, making it difficult to provide an inexpensive rotary razor.

[Purpose of invention]

Therefore, an object of the present invention is to provide a small and inexpensive rotary electric shaver.

[Summary of the idea]

The rotary electric shaver of the present invention has an outer blade attachment part on the upper part to which the outer blade is detachably attached,
A cylindrical motor is housed in a cylindrical razor body with an outer diameter approximately the same as the mounting part, and a plate-shaped battery is housed in an annular space formed between the motor and the razor body. It is characterized by having a built-in.

According to the rotary electric shaver having this feature, by focusing on the annular space that was conventionally formed between the motor and the razor body, and by storing the plate-shaped battery in this space, The component mounting density can be improved. Therefore, miniaturization can be achieved. In addition to using a low-cost motor with a long axial dimension rather than a flat one, plate batteries are also commercially available and inexpensive, and as the motor becomes smaller, razor-like Since the material cost of the main body can be reduced, an inexpensive configuration can be achieved.

[Example of idea]

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

In the figure, reference numeral 11 denotes a razor body having an outer blade attachment part 12 on the upper part, which is made of synthetic resin and is made of the above-mentioned attachment part 1.
It has a cylindrical shape with approximately the same outer diameter as 2. The outer blade mounting portion 12 has an outer diameter necessary to secure a predetermined shaving area, and by forming the main body body to approximately the same outer diameter as this, it is made easier to hold. In this embodiment, the outer blade mounting portion 12 is shown as being separate from the main body body portion, but these may be integrally molded in the present invention. Outer blade mounting part 12
A thread groove is formed on the outer surface of the blade, and an outer blade body 13 is removably screwed and attached to this attachment portion 12. The outer cutter body 13 has an outer cutter 13a having a large number of hair cutting holes. A motor 14 is housed within the razor body 11. The motor 14 has a cylindrical shape with a large axial length, and its rotating shaft passes through the center bottom of the mounting portion 12. This rotating shaft has an inner blade support shaft 1.
5 are connected. The support shaft 15 has an inner cutter 16a.
An inner cutter body 16 having an inner cutter body 16 is attached to rotate together with the support shaft 15. Furthermore, an annular space 17 is formed between the inner circumferential surface of the razor body 11 and the circumferential surface of the motor 14. A plurality of plate-shaped batteries 18 are housed in this annular space 17. The battery 18 is conventionally known and is held in place within the razor body 11 by a bottom cover 19 that is openable and closable at the lower end of the razor body 11. Furthermore, the plurality of batteries 18 are connected in series or in parallel via conductive plates (not shown) or the like, depending on the rated voltage used by the motor 14. In addition,
Reference numeral 20 in FIG. 4 (omitted in FIG. 3 for ease of understanding) is a battery holding groove formed along the axial direction on the inner circumferential surface of the razor body 11. A side edge of the battery 18 is fitted and supported in the . Further, 21 in FIG. 3 is a switch knob.

Further, although the above-mentioned embodiment is constructed as described above, in the case where the plate-shaped battery 18 is deformable in the present invention, it can be arranged in an arc shape along the circumferential surface of the motor 14 as shown in FIG. It may be built in the annular space 17. In this case, the plate battery 1
Since you can use a thicker battery for battery 8,
It helps to extend the service life of 8.

In carrying out the present invention, the specific structure, shape, position, etc. of the razor body, outer blade mounting portion, motor, annular space, battery, etc. shall be subject to the above-mentioned specifications unless it contradicts the gist of the invention. It goes without saying that the present invention is not limited to the embodiments and can be configured and implemented in various ways.

[Effect of idea]

Since the present invention explained above has the configuration described in the above-mentioned utility model registration claims, a plate-shaped battery is used, and this is used as a dead space between the motor and the razor body. By incorporating it into the annular space, the height and width are smaller compared to conventional ones, making it more compact.The cost of the motor and battery is also low, and the material cost of the razor body can also be reduced. This has the effect of being able to be configured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing a conventional example, Fig. 2 is a longitudinal sectional view of another improved rotary electric shaver, and Fig. 3 is a longitudinal sectional view showing a conventional example.
The figure is a longitudinal sectional view showing one embodiment of the present invention, FIG. 4 is a sectional view taken along the line - in FIG. 3, and FIG. 5 is a sectional view corresponding to FIG. 4 showing another embodiment of the present invention It is. DESCRIPTION OF SYMBOLS 11...Razor main body, 12...Outer blade attachment part, 13...Outer blade, 14...Motor, 17...
Annular space part, 18...battery, 19...bottom cover.

Claims (1)

[Scope of utility model registration request] A cylindrical motor is housed in a cylindrical razor body which has an outer blade attachment part on the top part to which the outer blade body is detachably attached, and which has approximately the same outer diameter as this attachment part. A rotary electric shaver characterized in that a plate-shaped battery is housed in an annular space formed between the above-mentioned razor body.