JPH0118142Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a reciprocating electric razor, in particular, when cleaning hair etc. that has gotten between the movable blade and the fixed blade. The purpose of this improvement is to make it possible to remove and reassemble the fixed blade by only slightly rotating the retaining member. It has been devised so that it can be done.

First, details of the embodiment will be described with reference to the drawings.

Figure 1 is an exploded plan view, 1 is a battery (not shown),
The main body has a built-in driving part such as a motor, 2 is a blade receiving base protruding from the front of the main body, and on the flat surface of this base 3, synthetic resin columnar bosses 3 are protruded from the front and rear. Fit the long hole 5 of the movable blade 4 into the boss 3, place the fixed blade 6 on top of the movable blade 4, and insert the hole 7 into the boss 3.
On the other hand, the boss 3 is provided with an axial press-fit hole 8, and the shaft portion 10 of the metallic collar-like retaining member 9 is press-fitted into the press-fit hole 8, and the retaining member 9 The fixed blade 6 is brought into contact with the fixed blade 6 to prevent it from coming out, and the fixed blade 6 and the movable blade 4 are brought into close contact with each other by the elastic means 11 stretched between the base 2 and the movable blade 4. Pressure is applied to the retaining member 9. Therefore, the main structure of the present invention is the above-mentioned boss 3.
The hole 7 of the fixed blade 6 that is fitted into the boss 3 is formed into a square shape, and the retaining member 9 that is press-fitted into the boss 3 is formed into a square shape and the same size as the hole 7 of the fixed blade. .

In addition, 12 in the figure is a drive unit connected to the drive part of the main body 1;
One end of the fixed blade 4 is engaged with the retracting lever 12 by a driven portion 4a of the fixed blade 4, so that the movable blade reciprocates. 13 is a mating base that faces the base 2.

Since the present invention is configured as described above, the movable blade 4
When hair gets into the gap between the fixed blade 6 and the fixed blade 6, align the retaining member 9 with the hole 7 of the rotated fixed blade 6, pull out the fixed blade 6 from the boss 3, and after cleaning,
By fitting the fixed blade 6 into the boss 3 again and rotating the retaining member 9 into the hole 7 in a staggered manner, the fixed blade can be fixed to the boss. On the other hand, since the retaining member 9 is formed into a square with the same shape and size as the hole 7, the retaining member 9 is slightly
By simply turning the blade by about 45 degrees, the retaining member 9 can be displaced to the hole 7 so as to be transparent or offset, and the fixed blade can be easily attached and detached. or,
In the above-mentioned misaligned state, the four corner portions of the retaining member 9 are located on each side of the hole 7, so that the fixed blade can be reliably retained.

By the way, the conventional retaining member mentioned above was proposed to be formed into a rectangular shape, but with this, it was necessary to rotate the retaining member by 90 degrees so that it was perpendicular to the elongated hole, and the retaining member Since it is press-fitted into the boss, turning it 90 degrees in a hard state requires time and effort to attach and detach the fixed blade, and the problem of positioning is troublesome.

The present invention solves these conventional drawbacks with the above-described configuration, and has many advantages.
In this example, the boss 3 is formed to have the same square cross section as the hole 7 as shown in FIG. 5a so that the bulges (indicated by dotted lines) generated on each side of the boss 3 by press-fitting the retaining member 9 into the boss 3 do not press against the edge of the elongated hole 5.

[Brief explanation of drawings]

FIG. 1 is an exploded plan view, FIG. 2 is a side sectional view of the same as in the assembled state, FIG. 3 is a plan view of essential parts of the same, and FIG. 4 is a partially cutaway plan view. 2... Blade holder base, 3... Columnar boss, 4... Movable blade, 6... Fixed blade, 7... Fixed blade hole, 9... Removal prevention member.

Claims (1)

[Scope of utility model registration request] The movable blade and the fixed blade are fitted overlappingly to a columnar boss protruding from the blade receiving base, and the fixed blade is press-fitted into the boss so that the fixed blade can rotate. In the blade plate removal structure in which the blade plates are brought into contact with each other so as to be removed and prevented from being removed by movement, the hole of the fixed blade that is fitted into the boss is formed in a square shape, and on the other hand,
A blade plate removal mechanism for an electric razor, characterized in that a brim-like retaining member provided on the boss is formed into a square having the same shape and size as the hole of the fixed blade.