JPS5856627Y2 - electric razor - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an electric razor.

Conventionally, this type of electric razor has a motor 2 built into a body 1 as shown in FIG. , and the inner cutter base 6 is pushed up by the push-up spring 7 housed in the joint body 4.
In turn, the inner cutter 5 is configured to be pressed against the outer cutter 8, and when the motor 2 is driven, the inner cutter 5 is provided to rotate and slide on the inner surface of the outer cutter 8.

Further, the connection between the joint body 4 and the inner cutter base 6 is such that a plurality of locking protrusions 9 are provided on the joint body 4 to project upward, and a plurality of locking receivers 10 are provided on the inner cutter base 6 to project downward. This is done by locking the

Further, the inner cutter stand 6 is pivotally supported on a support shaft 12 located at the center of the outer cutter of the mark plate 11.

However, in this configuration, the plurality of locking protrusions 9 and the plurality of locking receivers 10 are simply locked, so when the outer cutter 8 is pressed against the skin during use, As the inner cutters 5 line up, the inner cutter stand 6 also tilts, and all the locking protrusions 9 and all the locking receivers 10 are only partially locked, and each locking protrusion 9 rotates as the inner cutter stand 6 rotates. In addition, the locking receivers 10 are locked one after another, and when the locking protrusions 9 and the locking receivers 10 are locked, there is a risk that a collision sound will be generated and a large noise will be generated.

It is an object of the present invention to provide an electric razor that eliminates the above-mentioned drawbacks, maintains contact with the joint body even when the inner cutter base is tilted, and can suppress the generation of noise.

The present invention will be explained below with reference to the drawings.

2 to 4 show an embodiment of the present invention, in which a joint body 14 connected to the output shaft 13 of a motor and having a push-up spring 17 installed therein has a hemispherical recess in its upper part. 21 is formed, and a plurality of arch-shaped retaining grooves 23, three in this embodiment, are provided in the recess 21 from the center to the upper surface 22 in the radial direction.

On the other hand, an inner cutter body 16 that holds the inner cutter 15 and is linked to the joint body 14 has a semicircular protrusion 24 protruding from its lower surface, and the protrusion 24 has a groove in the recess 21. A plurality of arch-shaped locking protrusions 25 that can be engaged with 23 are provided in a protruding manner.

However, even if the inner cutter body 16 tilts following the inclination of the outer cutter,
The locking protrusion 25 provided on the protrusion 24 of the joint body 14 is located in the recess 21
slides in the engagement groove 23 of the joint body 1 but does not come off.
4 and the inner cutter body 16 are always maintained in contact via all the engagement grooves 23 and all the locking protrusions 25.

5 and 6 show another embodiment of the present invention. In this embodiment, a semicircular recess 21a is formed in the upper part of the joint body 14a, and a recess 21a is formed on the periphery. A plurality of notches 23a are provided.

A semicircular protrusion 24a is provided on the lower surface of the one-way blade 16a, and the notch 2 is provided around the protrusion 24a.
A locking protrusion 25a that can be engaged with 3H is cut and raised.

Therefore, in this embodiment as well, when the inner cutter body 16a is tilted following the inclination of the outer cutter, the protrusion 24a rotates within the recess 21a and maintains the contact state, and the contact state is maintained within the notch 23a. The stopper piece 25a is securely held.

The inventive razor configured as described above has the following features:
Even if the inner cutter body that supports the inner cutter is tilted, the joint body and the inner cutter body always remain in contact with each other, so the collision sound of the inner cutter body against the joint body can be suppressed and the noise can be significantly reduced. Realize the effect.

[Brief explanation of the drawing]

Fig. 1 is a partially simplified sectional view of a conventional electric razor, Fig. 2 is a partially sectional view of the electric razor of the present invention, Fig. 3 is a partially exploded perspective view of the same partially shown in cross section, and Fig. 4 is a view from below. FIG. 5 is a partial sectional view of another embodiment of the present invention, and FIG. 6 is an exploded perspective view of the same portion, partially shown in section. 1...Body, 2...Motor, 3.
13...Output shaft, 4゜14.14 a...
...Joint body, 5...Inner blade, 6, 16, 16 a
...Inner blade body, 7, 17... Push-up spring,
8... Outer blade, 9... Locking protrusion, 10.
...Latching receiver, 11... Mark plate, 12
......Spindle, 21.21a...Recess, 2
2...Top surface part, 23...Engagement groove, 23
a... Notch, 24, 24 a... Protrusion, 25... Locking protrusion, 25a... Locking protrusion piece.

Claims (3)

[Scope of utility model registration request] (1) In an electric razor in which the output of the motor is transmitted to the inner cutter stand supporting the inner cutter via the joint body, and the inner cutter supported on the inner cutter stand slides on the inner surface of the outer cutter, the joint body A spherical recess and an engaging part are provided on the upper part, and a spherical protrusion that engages with the recess of the joint body and a locking part that engages with the engaging part of the joint body are provided on the lower surface of the inner cutter table. 1 pot of electric power miso characterized by being provided with (2) Utility model registration claim 1, in which a plurality of arc-shaped retaining grooves are formed in a spherical recess, and a plurality of arc-shaped locking protrusions are provided on a spherical protrusion of the inner cutter base. Electric razor as described in section. (3) Request for registration of a utility model in which the engaging part of the upper part of the joint body is a notch provided on the periphery, and the locking part of the inner cutter stand is a locking protrusion cut and raised around a spherical protrusion. The electric razor according to item 1.