JPH04103869U - hair cutter - Google Patents

Abstract

(57) [Summary] [Purpose] The cutting height can be easily adjusted in any direction, making it easy to use. [Structure] The fixed blade 21 has a fixed blade 21 and a movable blade 22, both of which are comb-shaped. The movable blade 22 is perpendicular to the reciprocating direction of the movable blade 22 relative to the fixed blade 21 as a result of the sliding operation of the operator 4 which is slidably disposed on the surface of the housing 10 of the main body 0 containing the drive mechanism 22. In the hair cutter, the cutting height can be continuously adjusted by moving in the direction, and the spring 26 that presses the movable blade 2 against the fixed blade 21 also serves as a one-way return spring for adjusting the cutting height. , is provided with an auxiliary spring 47 that biases the operator 4 in a direction opposite to the spring 25.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention cuts hair using a comb-shaped fixed blade and a movable blade that slide into contact with each other. Suitable for hair cutters, especially for nape cuts that require continuous adjustment of cutting height. Regarding hair cutters.

0002

[Conventional technology]

Hair cutters with continuous cutting height adjustment are available. There is. A conventional example is shown in FIG. A blade block arranged on the tip surface of the housing 10 of the main body 1 The rack 2 includes a substrate 20, a fixed blade 21 fixed to the inner surface of the substrate 20, and a fixed blade 21 fixed to the inner surface of the substrate 20. The movable blade 22 is slidable relative to the fixed blade 21, and the movable blade 22 is directed toward the fixed blade 21. The guide cam 23 is fixed to the movable blade 22. It is installed on the output shaft of the motor 3 provided in the main body 1 via a joint 31. The eccentric shaft 32 engages with a vertical groove in the guide cam 23 and moves as the motor 3 rotates. The blade 22 is driven to reciprocate.

0003 Further, the spring 25 is formed of a torsion coil spring, and one end is connected to the substrate. 20, the other end is locked to the guide cam 23, and the base plate 20 is connected to the shaft 27. The coil part is attached to the lever 26 which is rotatably attached. ing. The movable blade 22 can slide left and right with respect to the fixed blade 21. Not only that, but it can also be slid forward and backward, and the wall gets thicker towards the tip. The position of the tip of the movable blade 22 relative to the thin fixed blade 21 is variable. . The spring 25 rotates the lever 26 and retracts the movable blade 22. Therefore, the part where the tip edge of the movable blade 22 is always located The cutting height h corresponding to the wall thickness of the fixed blade 21 is increased, but one end is The other end of the movable plate 46 that is in contact with the lever 26 is connected to the main body 1. Then move the slidable operator 4 forward and move the lever 26 as shown. When pressed and rotated, the movable blade 22 moves forward relative to the fixed blade 21, reducing the cutting height h. It becomes.

0004

[Problem that the idea aims to solve]

Here, the spring 25 pushes the movable blade 22 against the fixed blade 21 as described above. In addition, for the above-mentioned cutting height adjustment function, the movable blade 22 is biased in one direction. It has the function of a return spring, and the mowing can be done by operating the operator 4. Adjustment of the height is done under the spring load of the spring 25. Become.

[0005] For this reason, the operation of moving the movable blade 22 forward to reduce the cutting height is very difficult. A large amount of force is required to move the movable blade 22 backward to increase the cutting height. Therefore, almost no force is required, and there is a difference in the operating force for both operations. It's not easy to use. This invention was developed in consideration of these points, and its purpose is to The height can be easily adjusted in any direction, making it easy to use. It is to provide an accutter.

[0006]

[Means to solve the problem]

However, the present invention is equipped with a blade consisting of a fixed blade and a movable blade, both of which are comb-shaped. The fixed blade that the reciprocating movable blade slides into is formed into a tapered shape that becomes thinner on the cutting edge side. , is freely slidable on the housing surface of the main body that houses the drive mechanism of the movable blade. As the operator slides, the movable blade moves in the reciprocating direction of the movable blade relative to the fixed blade. It is said that the mowing height can be continuously adjusted by moving in the orthogonal direction. The spring that presses the moving blade against the fixed blade also serves as a one-way return spring for adjusting the cutting height. When the hair cutter is bouncing, there is a supplement that biases the operator in the direction opposite to the spring. It is distinctive in that it is equipped with a helper spring.

[0007] According to the present invention, the auxiliary spring counteracts the spring and cancels out the spring force. The influence of the spring force can be eliminated.

[0008]

【Example】

The present invention will be described in detail below based on the illustrated embodiment. -As shown in FIG. 4, a blade block 2 is disposed at the tip of the main body 1. , First, I will explain the main body 1. This is a housing 10 formed by dividing into two parts. , a motor 3 and a power supply module 8 are disposed, and the rear end of the housing 10 is A power supply connection portion 11 is formed as a recess. A spring 91 is attached to the power supply connection part 11. The energized protruding pin 90 is connected to a power connector (not shown). This is a lock pin that locks the The motor 3 is clamped and fixed by the housing 10. It is fixed to a motor mounting plate 35 with screws 36.

[0009] As shown in FIG. 6, the blade block 2 is detachable from the tip of the main body 1 , a substrate 20, a fixed blade 21 fixed to the inner surface of this substrate 20, and this fixed blade 21. The movable blade 22 is slidable against the fixed blade 21, and the movable blade 22 is biased toward the fixed blade 21. It consists of a spring 25, and a guide cam 23 fixed to the movable blade 22. When engaged and attached to the tip of the main body 1, the output shaft 30 of the motor 3 is connected to the output shaft 30 through the joint 31. The eccentric shaft 32 provided in the guide cam 23 engages with the vertical groove 24 of the motor 3 As the movable blade 22 rotates, the movable blade 22 is driven to reciprocate.

0010 Here, it is formed of a torsion coil spring, and one end is connected to the substrate 2. 0, the spring 25 whose other end is locked to the guide cam 23 is attached to the base plate 20 by a shaft 27. The coil part is attached to the lever 26 which is rotatably attached. ing. The movable blade 22 can slide left and right with respect to the fixed blade 21. Not only that, but it can also be slid forward and backward, and the wall gets thicker towards the tip. The position of the tip of the movable blade 22 relative to the thin fixed blade 21 is variable. . The spring 25 rotates the lever 26 in the direction shown by the arrow in FIG. 6(b). Due to this force, the movable blade 22 is pulled in the retracting direction by the spring 25. Therefore, the wall thickness of the fixed blade 21 in the area where the tip edge of the movable blade 22 is normally The corresponding cutting height h is larger, but in the direction shown by the white arrow in Fig. 6(a). When applying force to rotate the lever 26, the movable blade 22 moves forward to the cutting height h. becomes smaller.

[0011] There is an adjustment handle 4 on the front of the main body 1, and a power switch handle 6 on one side. However, a slide handle 7 is slidably attached to the other side. As shown in FIG. 5, the adjustment handle 4 is a slider disposed inside the main body 1. It is equipped with a hook 40 that engages with a rider 41, and is arranged to straddle the motor 3. Rollers are attached to the outer surfaces of both sides of the attached slider 41, respectively. Engagement shafts 42, 42 are provided in a protruding manner.

0012 As shown in FIG. An arc-shaped elongated hole 48 formed in the lever 44, which is rotatable by being pivoted. , so that the lever 44 rotates when the adjustment handle 4 is moved back and forth. It has become. Further, the tip of the lever 44 slides into the housing 10 in the front-rear direction. It is biased by an auxiliary spring 47 toward the front, which is the blade block 2 side. At the same time, the tip surface contacts the engaging portion 28 of the lever 26 on the blade block 2. For this purpose, by moving the adjustment handle 4, When the lever 26 of the blade block 2 is rotated, the movable blade 22 moves back and forth. For this purpose, the above-mentioned cutting height can be adjusted using the adjustment handle 4. .

[0013] If you move the adjustment handle 4 forward, the cutting height h will increase as shown in Figure 4. If the adjustment handle 4 is moved backward, the cutting height h can be reduced as shown in Figure 1. It's starting to get colder. In addition, a blade blower that is detachable from the main body 1 is also included. To attach the hook 2 to the main body 1, use the hook 29 protruding from one end of the board 20. Hook it on the housing 10 and use the contact point between one end of the board 20 and the housing 10 as a fulcrum. This can be done by rotating the blade block 2. At this time, lever 26 The engaging portion 28 in is configured such that the engaging portion 28 is rotated while the lever 26 rotates around the shaft 27. Since the distal end surface of the movable plate 46 is configured to move, it is biased to rotate by the spring 28. Although the lever 26 is in elastic contact with the distal end surface of the movable plate 46, it is not smooth. The blade block 2 can be attached at any time.

[0014] A lock handle 5 is disposed at the center of the adjustment handle 4. this The lock handle 5 is arranged in the space between the adjustment handle 4 and the slider 41. It is also biased toward the adjustment handle 4 side by a spring 50, and is normally At this time, the adjustment handle 4 is prevented from moving back and forth by the biasing force of the spring 50. Push the lock handle 5 against the spring 50 with your finger on the lever 4 to release the lock. The adjustment handle 4 can be moved back and forth.

[0015] A power switch handle 6 arranged on one side of the housing 10 is a power switch handle 6 disposed on one side of the housing 10. A power switch is configured between the printed circuit board 82 of the housing 10 and the other side of the housing 10. The slide handle 7 arranged on the surface is formed into a comb shape that can be placed over the tip of the main body 1. This is for moving the attached plowing attachment (not shown) back and forth. It is provided with a protrusion 70 for connecting an attachment.

[0016] The power supply module 8 arranged in the rear part of the main body 1 has a base having an H-shaped cross section. A base 80, a pair of secondary batteries 81, 81 mounted on one side of this base 80, and and the printed circuit board 82 mounted on the other side of the base 80. A light emitting diode 83 and the like are attached to the lint board 82 to indicate that charging is in progress. There is. In the figure, 84 is a motor connection fitting, and 87 is a light emitting diode 83 connected to the housing 10. This is a positioning hook for positioning directly below the light transmitting plate 18.

[0017] Therefore, in order to cut the nape of the neck with this hair cutter, the procedure shown in Figure 7 (a) is required. As shown, with the cutting height reduced, place the blade tip on the lower end of the nape, then As shown in Figure 7(b), the cutting height can be adjusted by moving the adjustment handle 4 forward. By gradually increasing the cutting edge and moving the cutting edge upward, you can make clean cuts. At this time, the lock handle is released by pressing the button. By placing the dollar 5 in the center of the adjustment handle 4, you can use your finger on the adjustment handle 4 to The operation of moving the adjustment handle 4 while pushing in the lock handle 5 can be easily performed. This allows you to perform the above cutting operations smoothly. It is something that

[0018] In addition, the auxiliary spring 47 that biases the movable plate 46 is The spring force is exerted in a direction that opposes the biasing of the movable plate 46 by the spring 25. The spring forces of both springs 25 and 47 applied to the movable plate 46 are balanced. This reduces the force required to operate the adjustment handle 4. The mowing height can be adjusted smoothly by operating the adjustment handle 4. It is something that

[0019]

[Effect of the idea]

As described above, in this invention, the spring that presses the movable blade against the fixed blade is In a device that also serves as a one-way return spring for adjustment, there is a spring that opposes this spring. Since an auxiliary spring is provided that biases the operator in the direction of The effect of the spring force is eliminated by counteracting and canceling out the spring force of the spring. Therefore, the cutting height can be easily adjusted in any direction, making it easy to use. It's a selfish thing.

[Brief explanation of drawings]

FIG. 1 is an enlarged longitudinal sectional view of an embodiment of the present invention.

FIG. 2 is a front view of the same as above.

FIG. 3 is a side view of the same as above.

FIG. 4 is a vertical cross-sectional view of the same as above.

FIG. 5 is a horizontal cross-sectional view of the same as above.

FIG. 6 is a longitudinal sectional view of the same blade block as above, in which (a) shows a state in which the cutting height is reduced, and (b) shows a state in which the cutting height is increased.

FIG. 7 is an explanatory diagram of the usage state, in which (a) shows a state in which the cutting height is reduced, and (b) shows a state in which the cutting height is increased.

FIG. 8 is an enlarged vertical cross-sectional view of a conventional example.

[Explanation of symbols]

4 Controls 21 Fixed blade 22 Movable blade 25 Spring 47 Auxiliary spring

Claims (1)

[Scope of utility model registration request] Claim 1: A fixed blade and a movable blade, both of which are comb-shaped, are provided, and the fixed blade that the movable blade that is driven reciprocally comes into sliding contact with is tapered so that the blade edge side is thinner, and the movable blade is driven by the movable blade. The movable blade moves relative to the fixed blade in a direction perpendicular to the reciprocating direction of the movable blade as the operator slides freely on the surface of the housing of the main body housing the mechanism, thereby adjusting the cutting height. In a hair cutter that allows continuous adjustment and in which the spring that presses the movable blade against the fixed blade also serves as a one-way return spring for adjusting the cutting height, an operator is attached in the direction opposite to the spring. A hair cutter characterized by being equipped with an auxiliary spring that applies pressure.