JPS6142586B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an inner cutter of a reciprocating electric shaver.

[Background technology]

When shaving with a reciprocating electric razor,
Since shavings and oils and fats adhere to the surface of the inner blade, brushing is usually done with the outer blade removed, or washed with water with the outer blade attached, but the latter is generally more hygienic.

By the way, there has conventionally been an inner blade of a reciprocating electric shaver in which the inner blade is inclined in the reciprocating direction (for example, Japanese Patent Application Laid-open No. 76158/1983). According to the inner blade of this reciprocating electric shaver, the inner blade is inclined in the reciprocating direction when washing with water, so when the inner blade is reciprocated, a water flow is formed between the inner blades, and this This allows the surface of the inner blade to be efficiently washed with water.

However, the inner blade of this reciprocating electric razor is
There was a drawback that the removal of whisker debris accumulated on the bottom surface of the base of the inner blade was insufficient.

[Purpose of the invention]

An object of the present invention is to provide an inner cutter for a reciprocating electric shaver that can efficiently remove hair debris from the bottom surface of a base together with the inner cutter blade.

[Disclosure of the invention]

The inner cutters of the reciprocating electric shaver of the present invention include a base having a bottom plate formed with an inclined bottom surface so that the central part in the reciprocating direction is deep and both ends in the reciprocating direction are shallow; The blade is provided with a plurality of inner cutter blades that are arranged in a row so as to be inclined to the base and have a space between them and the base.

According to the configuration of the present invention, since the inner cutter blade is inclined in the reciprocating direction, when the inner cutter blade is reciprocated during water washing, a water flow is formed along the surface of the inner cutter blade. In addition, a space is formed in the inner blade, and the bottom surface of the base is formed in an inclined shape so that the central part in the reciprocating direction is deep and both ends in the reciprocating direction are shallow, so that the water flow passes through the space and follows the bottom surface. When it flows, it becomes a smooth flow. Therefore, it is possible to efficiently remove whisker debris from the bottom surface of the base together with the inner blade.

Embodiment An embodiment of the present invention will be described based on FIG. That is, the inner cutter of this reciprocating electric shaver includes a base 6 having a bottom plate 5 having an inclined bottom surface 4 so that the center part 1 in the reciprocating direction is deep and both ends 2 and 3 in the reciprocating direction are shallow; It is provided with a plurality of inner cutter blades 9 arranged in a row so as to be inclined in the reciprocating direction of the base 6 and forming a space 8 between them and the base 6.

The reciprocating direction of the base 6 is indicated by arrows P and Q.

Each of the inner cutter blades 9 is formed into a semicircular arch shape when viewed from above, and the space portion 8 is formed inside the inner blade. Further, the inner blades 9 arranged in a row on the base 6 are inclined in opposite directions, that is, in a direction in which the cutting edges are separated from each other, with the central portion of the inner blades 9 as a boundary. In this case, the rivet portion 7 is formed near the cutting edge on the opposite side to the direction of inclination. Although not shown, the inner cutter blade located at the center may be vertically disposed on the base 6 and have rivets formed on both sides.

When the inner cutter blade 9 is submerged in water and the inner cutter is operated, when the base 6 moves in the direction of the arrow P, a water flow is formed as shown by the arrow A due to the inclination of the inner cutter blade 9 and flows toward the bottom surface 4. , the water that has reached the bottom surface 4 flows along the slope to the opposite side through the space 8,
It is discharged from the inner blade 9 to the outside. Conversely, when the base 6 moves in the direction of arrow Q, a water flow is formed in the opposite direction to arrow A. As a result, both the inner cutter blade 9 and the bottom surface 4 are efficiently washed with water by this water flow.

Note that 15 is a connecting rod that connects the center portions of the inner cutter blades 9.

FIG. 2 shows a modification of the first embodiment in which the bottom surface 4 is formed into a curved surface, so that the flow of water on the bottom surface 4 can be made even smoother.

A second embodiment of the invention is shown in FIGS. 3-5. That is, the inner blade of this reciprocating electric shaver is formed so that the bottom plate 5 of the base 6 is detachably attached to the frame 10. That is, this bottom plate 5 is provided with claws 12, 12' on both ends and on both sides of the central part, and the bottom plate 5 is brought into contact with the lower surface of the frame 10 to engage the claws 12, 12'.
is fixed and attached to the upper surface of the frame 10 from the inside. Further, bendable thin portions 13 are formed on both sides of the claw 12' in the central portion of the bottom plate 5 in the reciprocating direction.
Furthermore, outer blades 1 are attached to the outer surface of both sides of the frame body 10.
6, an elastic protrusion 14 is provided integrally with or embedded in it as shown in FIG. Further, the base of the outer cutter blade 16 is attached to the outer cutter frame 17. 18 is base 6
19 is the electric shaver body,
20 is its drive joint. The structure of the inner blade 9 is the same as that of the first embodiment.

With this configuration, by removing the bottom plate 5 from the frame body 10, the state of cleaning of the beard debris accumulated on the bottom plate 5 by washing with water can be checked as appropriate, and if it is not sufficient, cleaning can be performed reliably using a brush. In this case, confirmation can be easily made by removing one side of the bottom plate 5 one by one and folding it down as shown in the imaginary line, without removing the entire bottom plate 5. Also, since the bottom plate 5 can be made thinner,
It is possible to reduce distortion of the base 6 when molding is performed using materials such as plastics and metals,
Prevents deterioration of sharpness. Furthermore, the elastic protrusion 14 reliably cuts off the path through which water flows to the lower part of the base 6, ensuring a narrow washing range, increasing efficiency, and suppressing vibrations of the outer cutter blade 16, contributing to noise reduction. The rest is the same as the first embodiment.

Incidentally, although each half of the inner blade 9 is tilted in opposite directions, the entire inner blade 9 may be tilted in the same direction.

〔Effect of the invention〕

According to the inner cutter of the reciprocating electric shaver of the present invention, since the inner cutter blade is inclined in the reciprocating direction, when the inner cutter blade is reciprocated during washing, a water flow is formed along the surface of the inner cutter blade. In addition, a space is formed in the inner blade, and the bottom surface of the table is formed in an inclined shape so that the central part in the reciprocating direction is deep and both ends in the reciprocating direction are shallow, so that the water flow passes through the space and flows along the bottom surface. When it flows, it flows smoothly. Therefore, there is an effect that whisker debris on the bottom surface of the base can be efficiently removed together with the inner cutter blade.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a first embodiment of the present invention, FIG. 2 is a sectional view of a modified example thereof, and FIG. 4 is a sectional view of the inner blade, FIG. 5 is a sectional view of the elastic protrusion in contact with the base of the outer blade, and FIG.
The figure is a sectional view of a modified example. 1...Central part, 2, 3...Both ends, 5...Bottom plate, 6...
Base, 8...Space, 9...Inner blade.

Claims (1)

[Scope of Claims] 1. A base having a bottom plate formed with an inclined bottom surface so that the central part in the reciprocating direction is deep and both ends in the reciprocating direction are shallow; An inner cutter for a reciprocating electric shaver, comprising a plurality of inner cutter blades arranged in a row and forming a space between them and the base. 2. The inner blade of a reciprocating electric shaver according to claim 1, wherein the bottom plate of the base is removable. 3. The inner cutter of the reciprocating electric shaver according to claim 1 or 2, wherein elastic protrusions are provided on both sides of the base to slidably contact the inner surface of the outer cutter.