JPH01166792A - Electric cleppers - Google Patents

Abstract

PURPOSE: To provide electric hair clippers, with which a fixed blade and a movable blade can be made into blocks, by varying a blade tip step between the blade tip of the movable blade and that of the fixed blade while making the movable blade continuously and freely movable back and forth. CONSTITUTION: When an operating handle 4 is moved forward, a movable plate 47 and a push rod 48 are slid inversely to the operating handle 4 through a slider 42 and a link 45 and since force applied to a lever 18 is removed, the lever 18 is turned by the force of a spring 15 operated to a contact part between one end of the spring 15 and the slope of a fixed blade 11 so that the coil part of the spring 15 can be moved back. Therefore, a movable blade 12 is moved back as well and the blade tip step is continuously changed from the state of L1 to the state of L2 . When cutting hair short, by moving the operating handle 4 forward while moving the electric hair clippers from the side of neck to the side of head top, a cutting height is gradually moved up.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an electric hair clipper, and particularly to an electric hair clipper with variable cutting height.

<Background Art> When cutting, as shown in FIG. 8, the hair is cut short at the bottom and longer at the top. It is quite difficult to achieve this kind of cutting operation only by controlling the hand holding the clipper, and for this reason, in the Showa 1
As shown in Utility Model Application Publication No. 8416 published in 1999, the fixed blade moves back and forth in response to a lever operated by the hand holding the clipper, and as shown in Figure @9, the fixed blade 11
The height difference in the blade edge from the surface in contact with the breast of the hair to the tip of the movable blade 12 slidingly in contact with the other surface of the fixed blade 11, in other words, the hair cutting height can be changed from L to L2. has been done. By moving the clippers upward along the scalp and moving the fixed blade 11 forward, the cutting height can be gradually increased.

However, when changing the hair cutting height by moving the fixed blade 11 back and forth in this way, due to mechanical limitations in moving the fixed blade 11, the fixed blade 11 and the movable blade 12 must be moved relative to the clipper body 2. When the fixed blade 11 and movable blade 12 were removed, they fell apart and were inconvenient for cleaning and assembly.

<Objective of the Invention> The present invention has been made in view of the above points, and its object is to facilitate the formation of fixed blades and movable blades into blocks in a machine in which the cutting height is variable. There is an electric hair clipper to offer.

<Disclosure of the Invention> However, the present invention comprises a fixed blade and a movable blade that is reciprocated in the left and right direction and slides into contact with the fixed blade, and the movable blade slides into contact with the other side of the fixed blade from the milk value side of the fixed blade. In an electric hair clipper in which the cutting height can be changed by changing the distance to the tip, the movable blade can be moved back and forth continuously in the front and back direction, and the difference in blade edge between the movable blade tip and the fixed blade can be made variable. The feature is that the cutting height can be changed by moving the movable blade rather than the fixed blade.

The present invention will be explained below based on the illustrated embodiment. This electric hair clipper includes a hair clipper main body 2 whose one end has a triangular cross section and a drive motor 3 disposed inside the hair clipper body 2. It consists of a blade block 1 attached to one of the two sides constituting the above-mentioned triangular section at one end, and as shown in FIG.
A power switch handle 5 is slidably provided on the side surface, and an operating handle 4 is provided on the top surface.

On the other hand, the blade block 1 includes a base 10 having seven hooks 13 and an engaging protrusion 14 as shown in FIG. A movable blade 12 provided, a driver 16 fixed to the movable blade 12, and a spring 1 that presses the movable blade 12 against the fixed blade 11.
5, the above 7γri 13 is connected to the clipper body 2.
At the same time, the spring 7 hook 26 attached to the clipper main body 2 is engaged with the recess 25 in the above-mentioned engagement protrusion 1.
4, the clipper body 2 is attached to the clipper body 2.

When attached to the hair clipper body 2 in this way, the eccentric shaft 30 attached to the output shaft of the motor 3 moves the movable blade 12
The rotation of the motor 3 is converted into reciprocating motion by the eccentric shaft 30 and the cam 17, and is transmitted to the movable blade 12. Therefore, the movable blade 12 is reciprocated left and right with respect to the fixed blade 11, and cuts hair between the movable blade 12 and the fixed blade 11.

Here, the spring 15 pressing the movable blade 12 against the fixed blade 11 is a torsion coil whose coil part is supported by a pin 18b provided on a lever 18 rotatably attached to the base 10 with a pongee 18a. One end of the spring 15 is connected and locked to the driver 16 fixed to the movable blade 12, and the other end of the spring 15 slides on an inclined surface provided on the fixed blade 11. They are close to each other and can move freely.

The cutting height can be adjusted by moving the movable blades 12 forward and backward by operating the operating handle 4 provided on the clipper body 2, rotating the lever 18, and connecting the movable blades 12. This is done by moving the spring 15 that is in place. That is, the operating handle 4 is provided with a protrusion 41 that engages with a slider 42 provided inside the clipper body, so that the slider 42 also slides as the operating handle 4 is slid. Further, an engagement pin 43 provided on the slider 42 is slidably engaged with a long hole 46 provided in a link 45 which is rotatable by a shaft 44, and one end of the link 45 is also engaged. A push rod 48 is protruded from a movable plate 47 that slides as the link 45 rotates, the tip of which is brought into contact with the lever 18.

When the operation handle 4 is moved forward, the movable plate 47 and push rod 48 are moved through the slider 42 and the first link 45.
slides in the opposite direction to the operating handle 4, and the force applied to the lever 18 is removed, so the lever 18 is moved by the force of the spring 15 acting on the contact between one end of the spring 15 and the inclined surface of the fixed blade 11. Since the coil portion of the spring 15 is rotated and moved backward, the movable blade 12 is also moved backward, and the blade edge step changes from the state shown in FIG. 7(a) to the state Ll shown in FIG. 7(b). Continuously transition to

When cutting hair, if the operating handle 4 is advanced while moving the electric clippers from the hem side to the top side of the head, the cutting height will gradually increase. The amount of movement of the operating handle 4 required to make this movement is greater than the amount of movement of the movable blade 12, so that delicate finger adjustment is not required when operating the working handle 4. It is.

When cleaning the blade, push the blade as shown by the arrow in FIG. Since not only the blade 11 but also the movable blade 12 are attached, they do not come apart and are easy to clean, and the clipper body 2 is also easy to assemble.

Another embodiment is shown in FIG. 5, in which a spring 49 is provided which urges the movable plate 4 and the push rod 48 forward, and the spring force exerted by the spring 49 on the lever 18 is (by doing so, the operating handle 4
If you let go of the handle, the operating handle 4 as shown in Figure 5 will open.
This is so that the blade returns to the retracted state, that is, the level difference in the cutting edge returns to the state shown in FIG. 7(a). In the embodiment shown above, mowing is performed by moving the operating handle 4 forward.
While the user had to pull back the operating handle 4 after increasing the width, this hassle is eliminated.

Further, in the embodiment shown in FIG. 6, one side 46a of the long hole 46 of the link 45 with which the pin 43 of the slider 42 is slidably engaged is made into a wave shape, so that the pin 43 can be placed at any position in the long hole 46. This allows the cutting height to be set in stages.

<Effects of the Invention> As described above, in the present invention, since the cutting height is changed by moving the movable blade side, there are mechanical problems in using the fixed blade and the movable blade as one block. There are no restrictions on the height of the cut, and cleaning and assembly are easy because the entire blade can be attached and detached at once.Furthermore, since the fixed blade does not move, there is no possibility of it hitting the scalp and shifting its position, making it possible to adjust the cutting height. It is stable.

[Brief explanation of the drawing]

Figures 1 and 2 are cross-sectional views of one embodiment of the present invention, and Figure 3 (
a) is a perspective view of the same as above, FIG. 3(b) is a perspective view of the blade block, FIG. 4 is a broken side view of the same as above, FIG. 5 is a sectional view of another embodiment, and FIG. Cross-sectional view of the embodiment, FIG. 7 (a
), (b) are explanatory diagrams of the operation of the present invention, FIG. 8 is a schematic explanatory diagram showing how hair is trimmed, and FIG. 9 is an explanatory diagram of the operation of a conventional example, where 1 is a blade block and 2 is a clipper. Main body, 4
11 is a fixed blade, and 12 is a movable blade. Agent Patent Attorney Ishi 1) Chief 7 Figure 5 Figure 8 Figure 9

Claims (1)

[Claims] (1) Consisting of a fixed blade and a movable blade that is reciprocated in the left-right direction and slides into contact with the fixed blade, the tip of the movable blade slides from the skin-side surface of the fixed blade to the other surface of the fixed blade. In an electric hair clipper that can change the cutting height by changing the distance to the movable blade, the movable blade can be moved back and forth continuously in the front and rear directions, and the difference in the blade edge between the movable blade tip and the fixed blade can be made variable. Features electric hair clippers. (2) The electric clipper according to claim 1, wherein the amount of movement of the operating handle for moving the movable blade is greater than the amount of movement of the movable blade. (3) The coil part of the spring that urges the movable blade toward the fixed blade is supported by a rotatably pivoted lever, one end of which is connected to the movable blade, and the other end of which slides on an inclined surface. It is formed by a torsion coil spring that freely contacts the blade, and when the lever rotates, the movable blade moves back and forth via the spring, and the spring force of the spring biases the lever to rotate in one direction. An electric clipper according to claim 1, characterized in that: (4) The electric hair clipper according to claim 1, wherein the operating handle for moving the movable blade is biased by a spring in a direction that reduces the height difference in the blade edge. (5) The electric hair clipper according to claim 1, characterized in that the movable blade can be stopped at any step at the cutting edge.