JPH08323062A - Hair cutter - Google Patents

Abstract

PURPOSE: To provide a hair cutter which enables a user to guide hair into a direction to cut hair better and to see the cutting position easily. CONSTITUTION: The blade of a main body 2 and a contact faces 4b and 5b of first and second hair holding members 4 and 5 are respectively tilted to the guiding direction (A) for hair, and the tilting directions of contact faces 4b and 5b of the hair holding members 4 and 5 are set in the opposite direction to the tilting direction of the blase of the main body 2. In a condition that hair is guided into between the contact faces 4b and 5b and hair is held between the contact faces 4b and 5b, the angle θ of the blade to hair becomes larger and the angle θ1 of the blade to the guiding direction (A) for hair becomes smaller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cutter for cutting hair with a comb-shaped fixed blade and a movable blade which are in sliding contact with each other.

[0002]

2. Description of the Related Art Scissors are generally used as a household barber, but in this case, the work of cutting the hair protruding from between the fingers by sandwiching the hair between the fingers is performed. However, since the hair slides out between the scissors, it takes a considerable skill to straighten the hair. On the other hand, there is a conventional hair cutter as a hairdressing tool for household use, which has a comb-shaped fixed blade and a movable blade. With this, you can do barber much easier than with scissors,
It is also relatively easy to cut straight hair. However, this product gives a feeling of danger to the user because the blade tip of the blade touches the skin at the time of use, and in fact, it must be refrained from use for infants.

To this end, a blade composed of a comb-shaped fixed blade and a movable blade which are in sliding contact with each other and a hair holding member facing the cutting edge of this blade are provided, and the cutting edge of the blade and the hair holding member can be freely contacted and separated. This is disclosed in Japanese Patent Application Laid-Open No. 2-161975. In this case, by inserting the hair tip into the space between the blade tip of the blade and the hair holding member facing the blade, and bringing the blade and the hair holding member close to each other, the hair is pressed onto the hair holding member. Since the blade is cut with the blade, the blade tip does not come into contact with the skin, and therefore the hair can be cut easily and safely.

[0004]

By the way, when cutting hair, it is most convenient in terms of cutting ability to introduce the hair so that the cutting area is minimized with respect to the blade. It is common to set the angle of the blade of the main body to, for example, about 40 ° to 60 ° with respect to the hair introduction direction (direction parallel to the longitudinal direction of the main body) for the purpose of making it easier to visually recognize the cutting position. Is. However, when observing the cutting edge from above during cutting, the angle of the blade is 40 ° to 60 °.
There is a problem that the cutting position becomes difficult to see because it is large. In order to eliminate this, the angle of the blade with respect to the introduction direction of the hair may be reduced, but in this case, there is a problem that the sharpness is impaired because the angle of the blade with respect to the hair is reduced, and the blade with respect to the hair has a problem. It was difficult to adopt a structure that reduces the angle.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to allow hair to be introduced in a direction in which the cuttability is improved and at the same time to visually check the cut position. , To provide a hair cutter with good usability.

[0006]

In order to solve the above-mentioned problems, the present invention is provided with a blade composed of a comb-shaped fixed blade 13 and a movable blade 14 which are in sliding contact with each other at the tip and has a blade driving means 9 incorporated therein. Body 2 and a first hair holding member 5 that faces the cutting edge of the blade and is capable of coming into contact with and separating from the cutting edge of the blade.
And a second hair holding member 4 facing the first hair holding member 5 and capable of coming into contact with and separating from the first hair holding member 5, and the first and second hair holding members 4, 4. In the hair cutter in which the hair 30 introduced between the two is sandwiched between the contact surfaces 5b and 4b of both hair holding members and cut by the above blade, the blade of the main body 2 and the first and second hair holding members are provided. 4,5
The contact surfaces 5b, 4b of the main body 2 with respect to the introduction direction A of the hair 30 and the inclination directions of the contact surfaces 5b, 4b of the first and second hair holding members 4, 5 with respect to the inclination of the blade of the main body 2. It is characterized by being set in the opposite direction to the direction.

[0007]

According to the present invention, the blade of the main body 2 and the first and second blades
The contact surfaces 5b, 4b of the hair holding members 4, 5 of the hair 30
Since each of the contact surfaces 5b and 4b of the first and second hair holding members 4 and 5 is inclined with respect to the introduction direction A, the inclination direction of the contact surfaces 5b and 4b is opposite to the inclination direction of the blade of the main body 2. Contact surfaces 5b of the first and second hair holding members 4, 5;
The angle θ of the blade with respect to the hair 30 is 40 when the hair 30 is introduced between the contact surfaces 5b and 4b.
Since the angle is larger than the angle θ ₁ of the blade with respect to the introduction direction A of the hair 30, the hair 30 can be introduced to the blade edge of the blade in the direction in which the cutting property is improved, and the cutting is improved. On the other hand, the angle θ ₁ of the blade with respect to the introduction direction A of the hair 30 is smaller than the angle θ of the blade with respect to the hair 30, so that the blade tip of the blade can be easily visually observed during cutting.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. In this hair cutter 1, a blade block 3 is arranged at the tip of a main body 2 and a first hair holding member is provided on the lower surface side of the main body 2. The lower cover 5a which is the member 5 has the upper cover 4c which is the second hair holding member 4 arranged on the upper surface side of the main body 2, and the main body 2 will be described first and then shown in FIG. 3 (a). As described above, the upper housing 6 and the lower housing 7 form a body, the front part of the lower surface of the main body 2 is provided with the pruning plate 8 which is slidable back and forth, and the motor 9a serving as the driving means 9 and the A main switch SW1 for controlling the motor 9a and an interlocking switch SW2 are provided, and a switch handle 10 and a push button 11 (FIG. 2) are provided outside the main body 2. The main switch SW1 is turned on and off by the switch handle 10, and the interlocking switch SW2 is the push button 1
1 turns it on and off.

FIG. 3B shows a circuit diagram of the switches SW1 and SW2. The switch handle 10 of the main body 2 (see FIG.
When (a)) is in the rear position, the main switch SW1
When the switch handle 10 is turned off and the switch handle 10 is slid to the front position, the main switch SW1 is turned on, but the interlocking switch SW2 is kept off, and the motor 9a does not rotate in either case. When the push button 11 is pressed while holding the cover 5a and the upper cover 4c,
The interlocking switch SW2 is turned on and the motor 9a starts rotating only when the main body 2 and the upper cover 4c rotate simultaneously with respect to the lower cover 5a. The control method of the motor 9a is not limited to this embodiment.

Next, as shown in FIG. 3 (a), the blade block 3 which can be attached to and detached from the tip of the main body 2 is a substrate 1
2 and a comb-shaped fixed blade 1 fixed to the inner surface of the substrate 12.
3, a comb-shaped movable blade 14 slidable with respect to the fixed blade 13, a spring 15 for urging the movable blade 14 toward the fixed blade 13, and a guide fixed to the movable blade 14. It consists of a plate (cam) 16, and the fixed blade 13 here
The movable blade 14 is inclined with respect to the introduction direction A of the hair 30 (longitudinal direction of the main body 2 shown in FIG. 1), and the inclination angle θ ₁ is the longitudinal direction of the main body 2 with the main body 2 placed horizontally. It is set to about 40 ° with respect to the direction. In addition, blade block 3
Is attached to the main body 2 by locking one end of the board 12 to the upper housing 6 and a locking spring (not shown) attached to the lower housing 7 to the board 12. When mounted on the motor 9a, the eccentric shaft 19 protruding from the joint 18 fixed to the output shaft 17 directed to the front side of the motor 9a engages with the vertical groove portion of the guide plate 16, The movable blade 14 is driven to reciprocate with the rotation of.

As shown in FIG. 2, the lower cover 5a, which is the first hair holding member 5, is formed in a U-shaped cross section covering the entire lower surface of the main body 2 and has a wavy shape at its tip. The contact surface 5b is provided and the contact surface 5b
b faces the lower surface side of the cutting edge of the blade. Also the lower cover 5
The rear end of a is rotatably attached to a rotary shaft 50 provided at the rear end of the main body 2, so that the contact surface 5b of the lower cover 5a can come in contact with and separate from the cutting edge. On the other hand, the upper cover 4c, which is the second hair holding member 4, is formed in an inverted U-shaped cross section that covers the entire upper surface of the main body 2, and has a wavy contact surface 4b at its tip. A pressing plate 4a made of a transparent member is provided, and the pressing plate 4a is also provided.
The contact surface 4b of the lower cover 5a faces the contact surface 5b of the lower cover 5a so that the contact surface 4b can freely come into contact with and separate from the contact surface 5b.

Here, the contact surfaces 5b and 4b of the lower cover 5a and the pressing plate 4a are introduced in the introducing direction A of the hair 30 (see FIG. 1).
(The longitudinal direction of the main body 2) is inclined in a direction opposite to the inclination direction of the blade of the main body 2, and the inclination angle θ ₂ is about 2 with respect to the longitudinal direction of the main body 2 when the main body 2 is placed horizontally.
It is set to 0 °. A rear end portion of the upper cover 4c is rotatably attached to a rotary shaft 50 provided at a rear end portion of the main body 2 like the lower cover 5a, whereby a contact surface 4b of the pressing plate 4a is provided. Faces the contact surface 5b of the lower cover 5a so as to freely come into contact with and separate from the contact surface 5b.

However, in the hair cutter 1, when the switch handle 10 (FIG. 2) is positioned rearward, the main switch SW1 is turned off, the motor 9a does not rotate, and when the switch handle 10 is moved rearward. When the lower cover 5a is rotated in the proximity direction with respect to the main body 2, the locking projection 60 provided on the main body 2 side is interlocked with the switch handle 10 to lock the lower cover 5a provided on the inner surface of the lower cover 5a. The state of FIG. 2 is maintained by fitting in the protrusion (not shown).

If the switch handle 10 is slid forward from this state by one step, the locking projection 60 on the main body 2 side moves forward together with the switch handle 10 to come off from the locking projection on the lower cover 5a side, and the lower cover. 5a is opened to a state where it forms a required angle with respect to the main body 2 and the pressing plate 4a. Then, at this time, the main switch SW1 becomes conductive, but the interlocking switch SW2 is turned off in conjunction with the opening of the lower cover 5a, and the motor 9a does not rotate in this state.

Normal cutting of the hair 30 is performed in this state. That is, as shown in FIG. 4, the push button 11 of the upper cover 4c is grasped by putting a thumb on the push button 11, and the blade edge of the blade composed of the fixed blade 13 and the movable blade 14 is opposed to the blade edge with a required gap. The hair 30 to be cut is introduced between the lower cover 5a in the state (state of FIG. 5A).
At this time, if the lower cover 5a and the upper cover 4c are gripped, the main body 2 and the upper cover 4c rotate simultaneously with respect to the lower cover 5a, and if the push button 11 is further pressed, the interlock switch SW2 is turned on and the motor 9a rotates. To get started. Then, the hair 30 introduced as described above comes into contact with the pressing plate 4a in a position close to the cutting edge of the upper cover 4c before coming into contact with the cutting edge, as shown in FIG. 5B. It is sandwiched between the surface 4b and the comb-shaped contact surface 5b of the lower cover 5a, and when the push button 11 is pushed further, the push button 11 further rotates the main body 2 with respect to the lower cover 5a and the upper cover 4c. Depending on the blade edge of the lower cover 5
The hair 30 that has been introduced is cut by the blade in a state in which the movement of the hair 30 is suppressed by moving in a direction in which the hair 30 is brought into contact with the groove 70 portion that is further lower than the comb-shaped contact portion on the inner surface of a.

Here, the fixed blade 13 and the movable blade 14 are about 40 ° with respect to the introduction direction A of the hair 30 as shown in FIG.
Is inclined at an angle theta _1, whereas, the contact surface 5b of the lower cover 5a and the pressing plate 4a, 4b is the direction of inclination of the fixed blade 13 and the movable blade 14 at approximately 20 ° of angle theta ₂ in the opposite direction Since it is inclined, the inclination angle θ of the blade with respect to the hair 30 is 60 ° with the hair 30 being sandwiched between the contact surfaces 5b and 4b.
(= 20 ° + 40 °), resulting in improved sharpness and improved cutting ability. On the other hand, the angle of inclination θ ₁ of the blade with respect to the introduction direction A of the hair 30 can be reduced from about 60 ° to about 40 ° in the related art, so that the blade edge of the fixed blade 13 can be seen through the pressing plate 4a made of a transparent material. There is an advantage that the cutting position can be easily checked, and the cutting position can be easily checked, and the usability is extremely improved.

The inclination angle θ ₁ of the fixed blade 13 and the movable blade 14 need not be 60 ° with respect to the hair 30 sandwiched between the lower cover 5a and the pressing plate 4a, but is 60 ° to 90 °.
It is desirable that it is °. This is clear from Table 1 showing the result of actually measuring the number of cut hair bundles of φ0.1 mm in 1 second.

[0018]

[Table 1]

Further, in the present embodiment, since the central portions of both contact surfaces 5b, 4b of the lower cover 5a and the pressing plate 4a are formed in a corrugated shape, the corrugated portion is not covered by the hair 30.
As the hair 30 is slipped and sandwiched, the hair 30 is likely to come apart and the sharpness is further improved. Moreover, the cutting of the hair 30 is performed at a position surrounded by the upper cover 4c and the lower cover 5a. Cover 5a and pressing plate 4a
Since the comb-shaped contact surfaces 5b, 4b are closed, the cut fine dust can be stored in the lower cover 5a, and can be prevented from scattering or spilling to the outside.

The lower cover 5a and the rear end of the upper cover 4c are detachably attached to the rotary shaft 50 of the main body 2, and the switch handle 10 is moved further forward from the above-mentioned state in which the interlocking switch SW2 is effective. When moved, the interlocking switch SW2 is bypassed and the interlocking switch SW2 is moved.
The motor 9a may always keep rotating regardless of whether it is turned on or off. In this case, the lower cover 5a
Since the blade block 3 can be exposed to the outside with the upper cover 4c removed from the main body 2, the lower cover 5
a where the upper cover 5 and the upper cover 5 cannot be cut, such as a portion around the ear is cut.
It becomes possible to do it only.

In the above embodiment, the hair holding member 4,
Although the case where the contact surfaces 5b and 4b of No. 5 are formed in a comb shape has been described, the contact surfaces 5b and 4b may be formed into flat surfaces.

[0022]

As described above, according to the present invention, the blade of the main body and the contact surfaces of the first and second hair holding members are inclined with respect to the hair introduction direction, and the first and second hair holding members are inclined. By setting the inclination direction of the contact surface of the hair holding member to the opposite direction to the inclination direction of the blade of the main body, the hair is introduced between the contact surfaces of the first and second hair holding members and sandwiched between the contact surfaces. In this state, the angle of the blade with respect to the hair is larger than the angle of the blade with respect to the direction of introduction of the hair, so that the hair can be introduced into the direction of the blade edge in a direction in which the cutting property is improved, the sharpness is improved, and the cutting ability is improved. Is improved. On the other hand, since the angle of the blade with respect to the hair introduction direction is smaller than the angle of the blade with respect to the hair, the blade edge of the blade during cutting can be easily viewed and the usability is improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of the vicinity of a hair holding member according to an embodiment of the present invention.

2A and 2B are a side view and a front view of the above hair cutter.

FIG. 3A is a cross-sectional view of the vicinity of a blade block of the main body of the hair cutter, and FIG. 3B is a circuit diagram related to the motor.

FIG. 4 is an explanatory view of a usage state of the hair holding member of the above.

FIG. 5A is a cross-sectional view when the hair is introduced, and FIG. 5B is a cross-sectional view when the hair is cut.

[Explanation of symbols]

 2 main body 4 second hair holding member 4b contact surface 5 first hair holding member 5b contact surface 9 driving means 13 fixed blade 14 movable blade A hair introduction direction

Claims (1)

[Claims] 1. A main body having a comb-shaped fixed blade and a movable blade, which are in sliding contact with each other, at a tip thereof and having a built-in blade driving means; and a body facing the blade tip and being capable of coming into contact with and separating from the blade tip. A first hair holding member, and a second hair holding member facing the first hair holding member and capable of coming into contact with and separating from the first hair holding member. A hair cutter in which the hair introduced between the two hair holding members is sandwiched between the contact surfaces of both hair holding members and cut by the blade, the blade of the main body, and the first and second hair holding members. The contact surfaces are inclined with respect to the hair introduction direction, and the contact surfaces of the first and second hair holding members are inclined in the opposite direction to the blade of the main body. And a hair cutter.