JPS6136215Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an electric hair clipper, and particularly aims to improve safety by preventing pain and injury caused by contact between the corners of both ends of the cutting edge during use.

Conventionally, in this type of electric clipper, the sixth
As shown in the figure, a fixed blade 52 and a movable blade 53 are arranged in an overlapping manner at the tip of a main body case 51, and the reaping device 5
4, and when performing pruning such as round cutting,
All you need to do is to grasp the main body case 51, place the bottom of the reaping device 54 in an upwardly tilted forward position against the head, and push it forward.
4, or when moving the clippers along the surface of the head while cutting, the edge portions 55 at both ends of the fixed blade 52 may be accidentally touched, or when the movable blade 53 moves back and forth, the edge of the movable blade 53 may Since both ends move to a position close to both ends of the cutting edge of the fixed blade 52, depending on the angle at which the reaping device 54 is applied to the head, the corners 56 at both ends of the cutting edge of the movable blade 53 that reciprocate at high speed may move. There was also a risk that the product would come into contact with the scalp, ears, etc., causing pain and discomfort to the user, and in severe cases, causing injury.

This invention was made with attention to this fact, and attempts to eliminate the above-mentioned drawbacks by forming arc-shaped projections that bulge outward in the vibration direction of the movable blade at both ends of the fixed blade's cutting edge. This is what I did.

Hereinafter, embodiments of the present invention will be described based on the drawings.

The drawing illustrates a rechargeable electric hair clipper.

As shown in Figs. 1, 2, and 3, this main case 1 consists of upper and lower halves, 1a and 1b, and the lower case 1a has a storage battery 2, a drive motor 3, a vibrator 4, and a fixed blade 5a. A reaping device 5 consisting of a movable blade 5b is installed, and an upper case 1a is screwed onto the reaping device 5.

Inside the lower case 1b, a plastic bracket 7 is fixed upright with a pair of tapping screws 6, 6, and a plastic vibrator 4 and a drive motor 3 are fastened together with screws 8 to the front and rear surfaces of this bracket 7. combined.

The vibrator 4 has a thick rear wall 4a connected to a bracket 7, and a thick front wall 4b having a forwardly protruding interlocking arm 4b connected to a movable blade 5b of the reaping device 5.
The crank pin 11 is connected by thin left and right side walls 4c, 4c, and is formed into a hollow parallelogram in plan view, and is engaged with a vertically long long groove 9 formed on the rear surface of the front wall 4b. By rotating the motor 3 at high speed, the front wall 4b becomes the left and right side walls 4c, 4c.
It is configured to reciprocate from side to side through the elastic deformation of oscillations.

The reaping device 5 has a fixed blade 5a caulked and fixed to a fixed blade support 14a which is removably pivoted to a support shaft 13 on a lower case 1b, and a movable blade 5b which is caulked and fixed to a movable blade support 14b.
The movable blade support 14 is constituted by a helical spring 16 attached to the fixed blade support 14a via a support shaft 15 and biased against the upper surface of the fixed blade 5a so as to be able to slide freely.
The front end engagement hole 18 of the interlocking arm 4d of the vibrator 4 is engaged with the protrusion 17 protruding from the upper surface of the vibrator 4, so that the horizontal vibration of the vibrator 4 is interlocked with the movable blade 5b. In addition, in the figure, 19 is a slide switch operation piece for stopping the motor drive, 20 is a terminal for charging, 2
1 shows the check clamp during charging.

The electric hair clipper having such a structure is characterized in that, as shown in FIG. 4, bulging protrusions 22 are formed on both sides of the cutting edge of the fixed blade 5a. This protrusion 22 is formed by bulging both end side surfaces of a comb-shaped blade part 23 formed at the tip of the fixed blade 5a in an arc shape outward in the vibration direction of the movable blade 5b.
In particular, in order to further improve the effect, the protrusion 2
2 are each formed into a semi-disc shape. Of course, the vibration range of the movable blade 5b is restricted inward from the blade width D of the fixed blade 5a.

When using the electric hair clipper with the above configuration,
Grip the main body case 1, put the switch operation piece 19 into the drive position, reciprocate the movable blade 5b of the reaping device 5, and in this state, place the fixed blade support 14a on the bottom of the reaping device 5 against the cutting head. , just push it forward along the surface of your head. When moving the clippers along the surface of the head while mowing, or when changing the position of the reaping device 5 against the head, the blade edge of the reaping device 5 may come into contact with the scalp, ears, etc. due to excessive momentum. Even when the fixed blade 5a is brought into contact with the blade, the protrusions 22 that protrude in the shape of a semi-disk are formed on both sides of the cutting edge of the fixed blade 5a, so that pain and discomfort can be eliminated.Furthermore, this protrusion 22 Movable blade 5
Since the protrusion 22 protrudes outward in the vibration direction b, no matter what angle the reaping device 5 hits the cutting head, the protrusion 22 acts as a protector and protects the movable blade during reciprocating vibration. Since the movable blade 5b is prevented from coming into contact with the scalp, it is possible to prevent pain and injury caused by contact with the movable blade 5b.

As another embodiment, as shown in FIG. 5, the projections 22 are formed by integrally molding both ends of the comb-shaped blade portion 23 of the fixed blade 5a into a semicircular or hemispherical shape using rubber or a soft material. You can.

Of course, the present invention can be applied not only to the rechargeable electric hair clippers as shown in the above embodiments, but also to dry battery type and AC type electric hair clippers.

As explained above, this invention has a fixed blade arranged at the tip of a box-shaped main body case long in the front-rear direction, overlapping the fixed blade, and a motor built into the main body case that connects the fixed blade with the fixed blade. In an electric hair clipper equipped with a movable blade that reciprocates laterally when in contact, arc-shaped protrusions that bulge outward in the vibration direction of the movable blade are formed on the side surfaces of both ends of the comb-shaped blade of the fixed blade. Therefore, it is possible to prevent the occurrence of pain and injury due to contact between the corners of both ends of the cutting edge as in conventional electric clippers, and it is possible to provide a highly safe electric clipper.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the appearance of an embodiment of the present invention;
Fig. 2 is a plan view of the same embodiment with the upper case removed, Fig. 3 is a vertical cross-sectional side view of the main parts of the same embodiment, Fig. 4 is a diagram showing the fixed blade of the same embodiment, and Fig. 5 is a diagram showing the fixed blade of the same embodiment. The figure shows a fixed blade according to another embodiment of the present invention, and FIG. 6 is a plan view of the main part of a conventional electric hair clipper. DESCRIPTION OF SYMBOLS 1...Main body case, 3...Motor, 5a...Fixed blade, 5b...Movable blade, 22...Protrusion, 23...
...Comb-shaped blade part.

Claims (1)

[Scope of utility model registration request] A fixed blade 5a is disposed at the tip of a box-shaped main body case 1 long in the front-rear direction, overlapping the fixed blade 5a, and is in close contact with the fixed blade 5a by a motor 3 built in the main body case 1. In an electric hair clipper equipped with a movable blade 5b that reciprocates in the horizontal direction, arcuate protrusions 23 bulge outward in the vibration direction of the movable blade 5b on both end sides of the comb-shaped blade portion 23 of the fixed blade 5a. An electric hair clipper characterized by forming.