JPS5841907Y2 - reciprocating electric razor - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a reciprocating electric shaver equipped with a shaving mechanism.

This type of electric shaver is constructed such that the holder of the razor mechanism is inserted into and removed from a window formed in the main body case.

By the way, when the sharpening mechanism is used, the holder is also slightly oscillated in the direction of vibration as the movable blade vibrates.

However, since there is a slight gap between both end surfaces of the holder in the direction of sharpening blade assembly and the corresponding inner surface of the window so as not to prevent the holder from moving in and out, the holder Along with the overall lateral vibration, the specified amplitude of the movable blade relative to the fixed blade decreases, which not only makes it impossible to reliably shear the hair, but also causes both end faces of the fluctuated holder to It may collide with both sides of the part, which generates noise.

Therefore, this invention forms a triangular protruding surface on either the outer surface of the holder or the inner surface of the window along the vibration direction,
On the other hand, a triangular recess with a wider angle than the inclination angle of the protruding surface is formed, and the apex of the protruding surface is brought into pressure contact with the apex of the recess, thereby preventing lateral vibration of the holder when the holder is tilted. It is an object of the present invention to provide a reciprocating electric shaver which can prevent noise by suppressing and maintaining a specified amplitude of a movable blade.

An embodiment of this invention will be described below with reference to the drawings.

FIG. 1 is a cutaway side view showing an example of a reciprocating electric shaver according to this invention. In the figure, 1 indicates a motor 2 and a battery (
3 is an outer blade holder fitted to the top of the main body case 1, and the outer blade 4 held in the outer blade holder 3 is held on the inner surface of the outer blade 4 held in the inner blade holder 5. The inner cutter body 6 is in contact with the inner cutter body 6.

7 is a vibrator connected to the inner cutter holder 5;
The rotational force of the motor 2 is transmitted via an eccentric cam 9 fixed to the rotating shaft 8 of the motor 2, thereby causing the inner cutter body 6 to vibrate.

Reference numeral 10 denotes a sharpening mechanism driven by a vibrator 7, and as shown in FIG. It is pivotally supported in the groove 24 of.

14 is a switch button attached to the outer surface of the main body case 1;
A holder driving member 26 having elastic arm pieces 25 and 25 is connected to this switch button 14, and each tip 25a of the arm piece 25 is connected to a recess 30 of the holder 11 (Figs. 3a and 3b).
(Fig.) is engaged.

When the switch button 14 is operated, each elastic arm piece 25 is elastically deformed as shown in FIG. 3a, and the holder 11 starts rotating around the hinge protrusion 12, and the holder 11 starts rotating from the window 13 as shown in FIG. 3b. It is designed to be held in a protruding position.

A fixed blade 15 for edge cutting is fixed to the lower surface of the holder 11, and a movable blade 16 is fixed to the lower surface of the fixed blade 15.
are pressed together by a compression spring 17.

An engagement piece 19 that is engaged with an engagement recess 18 formed in the vibrator 7 is protruded from the rear end of the movable blade 16, and is driven to vibrate in the direction of arrow a by the vibrator 7. .

20 is a pin protruding from the bottom surface of the holder 11, and each pin 2
0 fits into a guide elongated hole 21 formed in the movable blade 16 to guide the vibration of the movable blade 16.

Either the outer surface of the holder 11 along the vibration direction of the movable blade or the corresponding inner surface of the window 13, for example, the outer surface of the holder 11 has a triangularly protruding surface 22, 22 as shown in FIG. The other side, that is, the inner surface of the window portion 13, is constituted by a triangularly recessed surface 23°23.

The inclination angle θ2 formed by this recessed portion 23.23 is
, 22 is formed at a wider angle than the inclination angle θ1 formed by the protruding surfaces 22.22, and the apex P of the protruding surface 22.22 is located at the recessed portion 23.23.
The holder driving member 26
are pressed together by the elastic force of the elastic arm pieces 25, 25.

This pressure contact means is not limited to the one that relies on the elastic arm piece 25, but for example, as shown in FIG. Alternatively, the spring force of the spring 27 may be utilized.

In FIG. 2, 28 is a rotating roller attached to the pin 20, and 29 is a spring support member that supports the compression spring 17.

In the above configuration, as the movable blade 16 vibrates,
The holder 11 of the sliding mechanism 10 also tries to oscillate laterally in the same direction, but the apex P of the triangular protruding surface 22.22 of the holder 11 is the apex P' of the triangular recessed part 23.23 of the window part 13.
Since the holder 11 is pressed into contact with the window 13 and engaged with the window 13 as shown in FIG. 4, the lateral vibration is suppressed. , 13b, and prevent rattling noise from occurring due to collision with the triangular protrusion and recessed portion 2.
By each vertex P, P' of 2.22 and 23.23,
Since the holder 11 can be positioned at the center of the window portion 13, the relative amount of the diaphragm of the movable blade 16 to the fixed blade 15 can be maintained at an appropriate value.

In addition, in the above embodiment, a triangular protruding surface 2 is provided on the holder 11 side.
2.22, a triangular recess 23.23 is formed on the window 13 side, but conversely, a recess 23.23 is formed on the holder 11 side, and a protruding surface 22 is formed on the window 13 side. A similar effect can be obtained even if .22 is formed.

As described above, this invention consists of one of the holder and the window of the edge mechanism having a triangular protruding surface and the other a triangular recess with a wide angle. By bringing the entry portion into pressure contact with each vertex, rattling noise due to lateral vibration of the holder is reduced, and the amount of the diaphragm of the movable blade can be maintained at an appropriate value.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view showing an example of a reciprocating electric shaver according to this invention, Fig. 2 is an exploded perspective view showing the shaving mechanism of the same razor, and Figs. 3a and 3b are methods for protruding the holder. FIG. 4 is an explanatory view of the same essential parts, and FIG. 5 is a perspective view showing another means for bringing the holder into pressure contact with the window. DESCRIPTION OF SYMBOLS 1... Main body case, 10... Scratching mechanism, 11... Holder, 13... Window section, 22, 22... Projecting surface, 23.23...
... recessed part, θ1. θ2...Inclination angle, P, P
'······vertex.

Claims (1)

[Scope of utility model registration request] Holder 1 of the edge mechanism 10 installed in the main body case 1
In the reciprocating electric shaver, the holder 11 can be entered and exited through a window 13 formed in the case 1.
A triangular protruding surface 22.22 is formed on either the outer surface along the cutting blade assembly direction and the inner surface of the window portion 13 corresponding to this outer surface, and the protruding surface 22.22 is formed on the other side. Triangular recessed part 23.23 with a wider angle θ2 than the inclination angle θ1
by forming the apex P of the protruding surface 22.22 into the recessed part 2.
3.23 A reciprocating electric shaver pressed against the apex P'.