JPS6148394B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an inner blade of a reciprocating electric shaver, and an object thereof is to automate the cleaning of the inner blade, reduce the size and weight of the cleaning body, and prevent shaving debris from accumulating on the cleaning body itself. is also aimed at.

A reciprocating electric shaver to which a first embodiment of the present invention is applied is shown in FIGS. 1 to 5. That is, 1 is the razor body, 2 is the motor, 3 is the storage battery, 4 is the charging circuit block, 5 is the charging terminal pin,
6 is its lead wire, 7 is the motor shaft, 8 is the eccentric shaft,
9 is a reciprocating transducer, 10 is a joint, 11 is an inner blade body, 1
2 is the outer blade installation button, 13 is the outer blade frame, 14
15 is the outer blade, 15 is the waterproof rubber, 16 is the push-up spring, 17
1 is a connecting pin, 18 is a switch handle, and 19 is a trimmer handle. In this electric shaver, a commercial power supply is applied to a pin 5 to charge a storage battery 3, and the motor 2 is operated by the storage battery 3. As the motor 2 operates, the motor shaft 7 and the eccentric shaft 8 rotate, and the reciprocating transducer 9 and the inner blade 11 reciprocate. This cuts the whiskers that have entered from the outer cutter 14.

Now, as shown in FIGS. 4 and 5, the inner cutter body 11 has a large number of semicircular arc-shaped inner cutter blades 20 arranged in rows at predetermined intervals, and both ends thereof are connected with end connecting bodies 21 and 22, respectively. Connect the central part to the central connecting body 2
3. They are connected by simultaneous molding. In particular, the end connectors 21 and 22 prevent the both end corners of the inner cutter blade 20 from protruding, thereby preventing the outer cutter 14 from protruding.
to avoid damaging it. The central connecting body 23 and the end connecting bodies 21 and 22 are integrally connected inside the inner blade 20 at a predetermined distance from the inner blade 20 by a bridge 24 similar to the blade arc shape. is reinforced in the radial direction, and these connecting bodies 21 and 22 are connected to the joint 10.

Further, the cleaning body 25 has a U-shaped cross section, and has a cross section that is sized to loosely fit the central connecting body 23,
A locking portion 26 that locks onto the upper surface of the central connecting body 23 is formed from the upper edges of both ends thereof. This locking part 2
Numerals 6 are formed in large numbers at intervals of the inner blades 20, and the width is made smaller than the interval between the inner blades. This cleaning body 25 is made of soft plastic or hard rubber, and is fitted into the central connecting body 23 from below by utilizing its elasticity. At this time, the locking portion 26 is located on the upper surface of the central connecting body 23, and both side surfaces thereof face the center portion of the inner blade 20. In this way, the cleaning body 25 is attached to the inner blade 2 due to the dimensional relationship.
It can move freely up and down, left and right, and forward and backward between zero.

When the inner blade 11 vibrates back and forth due to the operation of the motor 2, the cleaning body 25 is only freely attached to the central connecting body 23, so the inner blade 2
0 collides with the locking portion 26 every time it reciprocates, giving an impact to the inner blade 20. This action makes it difficult for shavings to adhere to the inner blade 20, and even if they do, they can be easily removed.

With this structure, the inner blade of this reciprocating electric shaver has the following effects. That is, (1) Due to the operation of the inner blade body 11, the inner blade 20
Since a shock is applied to the surface, it is difficult for warping debris to adhere, and even if it does, it is removed by the impact. Therefore, cleaning of the inner blade can be omitted during disassembly and cleaning, making cleaning easier. In addition, in the case of washing with water, due to the fluidity of water and cleaning liquid,
Debris from the inner blade 20 can be removed more reliably.

(2) The only part that applies an impact to the inner blade 20 is the locking part 26 located at the center of the inner blade 20, so that shavings that are about to fall between the inner blades 20 are not scattered.

(3) The cleaning body 25 is small and lightweight, and the amount of debris that adheres to the surface is small, and it is easily removed by the vibration of the cleaning body 25.

(4) Compared to the case where the cleaning body 25 is supported by the razor body 1, in this case, the cleaning body rises from both ends of the inner blade into the gap between the inner blades, so that the cleaning body 25 is supported by the razor body 1. Although it is necessary for both ends to protrude from the end connector, this is not necessary in this embodiment. Therefore, there is no damage to the outer blade due to protrusion of both end corners of the inner blade.

A second embodiment of the invention is shown in FIG. That is, the inner cutter body of this reciprocating electric shaver is made of a cleaning body 25a having the same structure as the cleaning body 25, made of plastic or metal, and whose surface is coated with hard rubber, soft plastic, or fluororesin. It is. This can reduce impact noise when the cleaning body 25a collides with the inner cutter blade 20, and in the case of a cleaning body coated with fluororesin, scraps are less likely to adhere to the cleaning body itself.

A third embodiment of the invention is shown in FIGS. 7 and 8. That is, in the first embodiment, the inner cutter body of this reciprocating electric shaver has a large number of comb pieces 27 extending horizontally from the bottom of both sides of the cleaning body 25b in correspondence with the locking parts 26, and the tips of the comb pieces 27 are used for cleaning. body 25b
is positioned above the end connectors 21 and 22 when the central connector is attached, so that the comb piece 27 collides with the end of the inner cutter blade 20. The rest is the same as the first embodiment and has the same effects.

A fourth embodiment of this invention is shown in FIGS. 9 to 11.
As shown in the figure. This is an inner blade 20a with a chipped central part and a cleaning body 25c with the following configuration, and the central connecting body 2 is attached from the central notch 28.
The central rod 29 that is hung on the central rod 2
A comb part 30 is provided at each end of the comb part 9 with a width smaller than the interval between the inner blades 20a and has a blade pitch, and has an arc shape that is the same as the blade shape. It consists of a hook 31 that fits loosely. This cleaning body 25c is attached from above the inner blade body 11, and the hook 31 is fitted into the central connecting body 23. The rest is the same as the first embodiment, but since the comb portion 30 is provided along the shape of the inner blade 20a, the impact on the inner blade 20a is larger, making it easier to remove warping debris from the inner blade 20a. More certain.

As described above, in the inner blade of the reciprocating electric shaver of the present invention, the cleaning body is attached to the central connecting body that connects the central parts of the inner blades, so the cleaning body can be made smaller and lighter. The inner blade can be automatically cleaned without increasing the amount of adhering shavings, and since there is no need for both end corners of the inner blade to protrude from the end connector, the outer blade will not be damaged. effective.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an electric shaver to which the first embodiment of the present invention is applied, FIG. 2 is a sectional view thereof, and FIG.
The figure is an enlarged sectional view of the main part, Figure 4 is an exploded perspective view of the inner blade, Figure 5 is a perspective view of the inner blade, and Figure 6 is the second
7 is a perspective view of the third embodiment, FIG. 8 is an exploded perspective view thereof, and FIG. 9 is a sectional view of the main parts of the electric shaver in the fourth embodiment. 10 is a perspective view of the inner cutter body, and FIG. 11 is an exploded perspective view thereof. 11...Inner blade body (inner blade body), 20, 20a...
Inner cutter blade, 21, 22... End connection body, 23...
Central connector, 25, 25a, 25b, 25c...cleaning body, 26...locking part, 27...comb piece, 30...comb part.

Claims (1)

[Scope of Claims] 1. An inner blade in which a large number of semicircular arc-shaped inner blades are arranged in a row at predetermined intervals, both ends of which are connected by end connecting bodies, and central parts of which are connected by a central connecting body. An inner blade body of a reciprocating electric shaver, comprising a blade body and a cleaning body that is swingably attached to the central connecting body and collides with the inner blade by the operation of the inner blade. 2. The cleaning body has a U-shaped cross section and is locked to the central connecting body by a locking part protruding inward at its cool end, and this locking part collides with the inner blade. The inner blade of the reciprocating electric shaver described in Section 1. 3. The inner blade of a reciprocating electric shaver according to claim 1, wherein the cleaning body comprises a locking pawl that locks on the central connecting body and a comb portion located between the inner blade. 4. Claim 1, wherein the cleaning body is made of hard rubber or soft plastic material.
The inner blade of the reciprocating electric shaver according to item 2 or 3.