JPS64869Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to an electric shaver.

[Background technology]

As shown in FIG. 7 (for example, FIG. 4 of Utility Model Application Publication No. 56-9374), a battery 7 is attached to the body 71 of the razor body 70.
2 and a switch 73, a motor 74 is installed in a direction inclined at a predetermined angle in the longitudinal direction of the tip,
In the case where the motor 74 is provided with a blade part 75 on the front side, the electric connection between the motor 74 side and the battery 72 side is made by connecting the motor terminal of the motor 74 with a current-carrying metal fitting 76 pulled out from the battery base 72a on the battery 72 side. 7
It was connected to 4a.

However, when manufacturing a model in which the shape of the razor body 70 is approximately the same, but the length L of the razor body 70 and the inclination angle θ of the motor 74 are slightly different, the motor 74, blade portion 75, battery 72, switch 73 Irrespective of whether or not the types of parts such as the above change, the current-carrying metal fitting 76 has to be manufactured according to its design specifications. For this reason, the number of types of parts of the current-carrying metal fittings increases, resulting in a disadvantage that parts management becomes complicated.
In addition, if the current-carrying metal fittings are connected by soldering, repair such as disassembly becomes troublesome.

Furthermore, even if the connecting fitting is pulled out from the motor side and connected to the current-carrying fitting, the same drawbacks as above will occur since L and θ change.

[Purpose of invention]

The purpose of this invention is to provide an electric shaver that can use a common contact fitting for electrically connecting the motor side and the battery side for razors with different lengths and motor inclination angles.

[Disclosure of invention]

The electric shaver of this invention has a battery and a switch in the body, a motor in the tip that is inclined at a predetermined angle with respect to the longitudinal direction of the body, and a blade in front of the motor. and a motor connection terminal having a contact piece disposed at the rear of the motor and in contact with the motor terminal, and a dog-shaped contact fitting protruding a predetermined amount toward the battery in a direction substantially perpendicular to the direction of inclination of the motor. , the electrically conductive metal fitting is provided on the battery side, extends toward the motor side by a predetermined distance in a direction substantially parallel to the longitudinal direction of the razor body, and has a slanted piece at a tip thereof at a predetermined angle. The battery base is configured such that the bent portion of the dog-shaped contact fitting is selectively brought into contact with the inclined piece or side surface of the current-carrying fitting in accordance with the length of the razor body and the inclination angle of the motor. . Therefore, the contact fittings can be shared, the number of parts does not increase, management is easy, and disassembly and repair are easy.

An embodiment of this invention will be explained based on FIGS. 1 to 6. First, in FIGS. 1 to 4, a razor main body 1 houses a storage battery 3 in a body 2 and is held on a battery base 4. The battery base 4 has conductive plates 5 to 7 forming a circuit as shown in FIG.
and a charging cathode rod 8 are arranged, the conductive plate 5 is connected to the anode of the storage battery 3, the conductive plate 7 is connected to the cathode of the storage battery 3, and the opening hole 9 is passed through the base 4 through the opening hole 9. A switch spring 10 formed by bending a conductive plate 5 is disposed within the base thickness of , and the switch spring 10 is opposed to a switch plate 11 formed by bending a conductive plate 6 so as to be able to freely approach and separate. There is. In addition, the conductive plate 6,
At the tip of the razor body 1, the current-carrying metal fittings 12 and 13 are bent and extended in a Z-shape as shown in FIG. The dimension of the amount _L1 is set to a predetermined amount, and the inclined piece 14 is further inclined at a predetermined angle at the tip thereof.
is tilted.

The tip of the razor body 1 has an opening 15 having a predetermined inclination angle θ ₁ with respect to its longitudinal direction,
A motor 16 is installed in the opening 15 at the same angle. The motor 16 is attached to a motor mount 17 and screwed to the razor body 1, and a blade mount 18 is screwed to the motor mount 17. A blade portion 20 consisting of a rotating inner cutter (not shown) is provided. A motor connection terminal 21 is attached to the bottom of the opening 15, that is, to the rear end side of the motor 16, and a contact piece 23 that comes into elastic contact with the motor terminal 22 is attached to the motor connection terminal 21, and a contact piece 23 is attached to the storage battery 3 side in a direction perpendicular to the motor 16. Dog-shaped contact fittings 24, 2 that extend a certain amount
5 is provided. This dog-shaped contact fitting 2
The bent portions 26 of 4 and 25 are connected to the electrically conductive metal fittings 12 and 13.
However, since this razor body 1 has a small length L _{2 and} a large inclination angle θ ₁ , the bent portion 2 is in contact with the razor body 1 as shown in FIGS.
6 contacts the current-carrying metal fittings 12 and 13 at approximately the center position when viewed from the side.

A switch 27 is provided in the center of the razor body 1, and the operation of the switch handle 28 rotates a camshaft 30 via an O-ring 29, and the rotation of the half-moon-shaped tip 31 causes the camshaft 30 to rotate as shown in the imaginary line in FIG. Push the switch spring 10 so that it approaches and separates from the switch terminal 11. Due to the contact of the switch spring 10, the conductive plate 5 and the conductive plate 6 connected to the anode of the storage battery 3 become electrically connected, and current is applied to one of the motor terminals 22 via the current-carrying metal fitting 12 and the contact metal fitting 24.
The other end is energized to the conductive plate 7 connected to the cathode of the storage battery 3 via the contact fitting 25 and the current-carrying fitting 13, so that the motor 16 is operated. The operation of the motor 16 causes the inner cutter to rotate and cut off the hair that has entered the outer cutter 19.

In addition, 32 is an anode charging terminal, 33 is a joint, and 34
is a gasket, 35 is a flush ring, 36 is a lower cover, 37 is an O-ring, and 38 is a lock button.

Next, FIGS. 5 and 6 show the case of a model in which the length L ₃ of the razor body 1' is longer than that in FIGS. 1 to 4 by ΔL, and the inclination angle θ ₂ is smaller. Generally, the parts other than the battery base 4 and the motor connection terminal 21 are the same as those shown in FIGS. 1 to 4, so the common parts are given the same symbols and dashes. In this case, the bent portions 26 of the contact fittings 24, 25 are arranged according to the dimension L ₃ and the angle θ ₂ of the razor body 1'.
As a result of this change, the slanted pieces 14 of the current-carrying metal fittings 12 and 13 come into contact with each other.

In short, the contact fittings 24, 25 and the current-carrying fitting 1
The range of models that can be used in common with 2 and 31 is contact fitting 2.
This is a case where the length and inclination angle of the razor main body 1 are set within a range where the bent portions 26 of the energizing fittings 12 and 13 can be positioned on the inclined piece 14 when viewed from the side. In this case, since both the current-carrying metal fittings 12, 13 and the contact metal fittings 24, 25 have elasticity, their range includes the elastic limit.

With this configuration, the current-carrying metal fittings 12 and 1 can be attached to models with different lengths and angles of inclination of the razor body 1.
3 and the contact fittings 24, 25 can be shared, and the number of parts is reduced, making management easier.
Since the inclined pieces 14 of No. 3 are electrically connected by contact and serve as contact guides between the contacts when both are assembled, ease of assembly and repair can be improved.

[Effect of idea]

According to this invention, the contact fittings and current-carrying fittings that electrically connect the battery side and the motor side can be shared among models with different lengths of the razor body and the angle of inclination of the motors, making it easier to manage parts, and the contact fittings can be used in common. This has the effect of improving ease of assembly and repair due to the contact caused by the bent portions of the parts.

[Brief explanation of the drawing]

Figure 1 is a sectional view of one embodiment of this invention, Figure 2 is a partial plan view of the razor body with the motor removed, Figure 3 is a plan view of the battery base, and Figure 4 is an enlarged view of the main parts. 5 is a partial sectional view of an electric shaver of a different model, FIG. 6 is a sectional view of the entire electric shaver, and FIG. 7 is a sectional view of a conventional example. 1, 1'... Razor body, 2, 2'... Body part, 3, 3'... Storage battery, 4... Battery base, 12,
13... Current-carrying metal fitting, 14... Inclined piece, 16,1
6'...Motor, 20, 20'...Blade section, 21...
Motor connection terminal, 22, 22'...Motor terminal,
23...Contact piece, 24, 25...Contact fitting, 26
...Bending part, 27, 27'...Switch, L ₂ , L ₃
...Length of the razor body, θ ₁ , θ ₂ ...Inclination angle.

Claims (1)

[Scope of utility model registration request] A razor body having a battery and a switch in the body, a motor in the tip thereof inclined at a predetermined angle with respect to the longitudinal direction of the body, and a blade in the front of the motor, and a razor body in the rear of the motor. a motor connection terminal having a contact piece disposed to contact the motor terminal and a dog-shaped contact fitting protruding a predetermined amount toward the battery side in a direction substantially perpendicular to the inclination direction of the motor; The length of the razor body is set in advance and the length of the razor body is set in advance. an electric shaver, the battery base being adapted to selectively bring the bent portion of the dog-shaped contact fitting into contact with the inclined piece or side surface of the current-carrying fitting in accordance with the inclination angle of the electric shaver.