JPS6117511B2 - - Google Patents

Description

[Detailed description of the invention]

In recent years, the trend of wearing long hair has become dominant,
As a result, there is an increasing demand in the market for so-called plow clippers that can partially cut hair so that each person can freely style their hair as they wish. However, with conventional hair clippers of this type, a clipping attachment is simply attached to the underside of the fixed comb blade, and the hair clipping section of the clipper is selectively blocked to partially cut the hair. Because it was similar to cutting, it was easy to cut too much, resulting in tiered hair, and achieving the ideal hairstyle often relied on the skill of the user. It was difficult for ordinary people, especially mothers, to use it. Furthermore, since the attachment is attached to the lower surface of the fixed comb blade by a spring or the like, vibration from the drive source sometimes causes rattling noise and abnormal vibration of the tip of the attachment. For these reasons, it is currently not widely used in the market. In order to eliminate such drawbacks, the present invention includes a main body case, a first movable comb blade and a second movable comb blade that overlap and reciprocate on the upper surface of the fixed comb blade fixed to the front bottom of the main body case. The first movable comb blade is composed of a combination of movable comb blades, and the second movable comb blade has a blade angle larger than that of the comb blade surface at the tip of the first movable comb blade. The movable comb blades have a recess in the center of each that follows an inclined sliding groove formed in a direction perpendicular to the reciprocating direction of the movable comb blade, and is fixed to the front bottom of the main body case. While keeping the comb blades fixed,
The movable comb blade or the second movable comb blade is inserted and removed along a direction perpendicular to the reciprocating direction of the movable comb blade, and has a movable comb blade pressing elastic force. The distal end of the drive rod is engaged with and disengaged from the recess, and the first movable comb blade and the second movable comb blade can be selectively attached to the main body case, and in the attached state,
The opening angle for hair introduction between the fixed comb blade and the comb blade surface of the first movable comb blade or the second movable comb blade is 40
It is set at an angle of 150° to 150°, and allows each person to adjust the amount of hair cut as desired by the pressure applied to the hair, and also controls the amount of hair cut relative to the pressure. By arbitrarily selecting the opening angle between the fixed comb blade and the movable comb blade surface for introducing hair, rough cutting and finishing can be performed freely without requiring any skill, creating the ideal hairstyle. It is designed so that it can be easily created. Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 of the drawings, reference numeral 1 denotes a main body case of a hair clipper A that houses a motor etc. (not shown), and a screw tube 2 provided at the front bottom of the main body case 1 has fixed comb blades 3. A tightening screw 4 for mounting the fixed comb blade 3 is screwed onto the fixed comb blade 3. The first movable comb blade 6, which is placed on the upper surface of the fixed comb blade 3 and reciprocated by the driving rod 5, is connected to the comb blade surface 3a of the fixed comb blade 3, as shown in FIG. 2b.
In comparison, the comb blade surface 7 has a gently sloped cutting edge angle _θ1 . In addition, a drive rod 5 is provided at the center of the first movable comb blade 6.
A recess 8 that fits into the tip 5a of the movable comb blade 6 is provided, and a downwardly inclined sliding groove 9 is formed from the end of the recess 8 to the rear end of the movable comb blade 6. The rod 5 can be easily fitted into the recess 8 by sliding through the sliding groove 9. In this case, since the fixed comb blades 3 remain fixed to the front bottom of the main body case 1, the pressing elastic force from the drive rod 5 that the first movable comb blades 6 receives will affect the fixed comb blades 3. It is received as a flat guide surface and can be inserted smoothly. Further, even when the first movable comb blade 6 is pulled out, the fixed comb blade 3 can be used as a guide surface in the same manner. Reference numeral 10 denotes a finger hook piece, which is used to press the first movable comb blade 6 with a finger when attaching or detaching the first movable comb blade 6 to the body case 1 of the hair clipper A. The second movable comb blade 26 shown in FIG.
It has a sliding groove 29 and a finger hook 30, but its comb blade surface 27 has a cutting edge angle θ ₂ as shown in FIG. 6
The slope is more gentle than that of . The movable comb blades 6 and 26 each have a ball 11 mounted on the fixed comb blade 3 loosely fitted into the concave grooves 12 and 32 on the lower surface of each movable comb blade 6 and 26 to prevent lateral vibration. However, if the drive rod 5 is tightly fitted into the recess 8, the ball 11 is not particularly required since the position is regulated by both of them. This ball 11 is pushed upward by a spring 13, and both movable comb blades 6, 26
When the movable comb blades 6 and 26 are inserted and removed, they are pressed against the lower surfaces of the movable comb blades 6 and 26 and lowered so that they do not get in the way. To attach the first movable comb blade 6 to the hair clipper A having such a configuration, put your finger on the finger hook 10 of the first movable comb blade 6 and connect it to the main body case 1 in front of the hair clipper A. When pushed into the gap between the drive rod 5 and the blade 3, the tip 5a of the drive rod 5 slides on the sliding groove 9, fits into the recess 8, and is stably mounted. In this state, if the motor or the like is driven to swing left and right with the drive rod 5, the first movable comb blade 6 slides back and forth on the fixed comb blade 3, thereby cutting the hair. In this case, the tip 5a of the drive rod 5, which is driven to swing from side to side, fits into the recess 8 of the first movable comb blade 6 and is biased toward the fixed comb blade 3. The first movable comb blade 6 is restricted in its reciprocating motion relative to the fixed comb blade 3 by the drive rod 5, thereby cutting hair. Next, to use the second movable comb blade 26,
If you put your finger on the finger hook 10 of the first movable comb blade 6 and pull it toward you, the tip 5a of the drive rod 5 will be released.
is raised from the recess 8, and can then be removed by sliding through the sliding groove 9. At this time, the driving rod 5
Since the tip portion 5a has a downward pressing elastic force, it slides in the sliding groove 9 so as to push out the first movable comb blade 6 using the fixed comb blade 3 as a guide surface, so that the fixed comb blade 3 Even if hair debris enters the sliding surface between the movable comb blade 6 and the first movable comb blade 6, it is hardly affected.
If the other second movable comb blade 26 is pushed in in place of the removed first movable comb blade 6 in the same manner as described above, the tip 5a of the drive rod 5
slides on the sliding groove 29, fits into the recess 28, and is easily installed in a stable state. The results of a test regarding the hair introduction opening angle θ of the comb blade surface of the hair clipper A having the following structure will be explained. Figure 4 shows an example of the test method.B
is a test stand, C is a support arm fixed to the pillar of test stand B, and to the support arm C, 100 polyester fibers D with a diameter of 100μ are firmly bundled and fixed at the tip. Further, a pressing force gauge E is in contact with the back surface of the fiber D, and this pressing force gauge E is fixed to the support arm C. Clipper A used in the test uses 100V AC as a power source and a frequency of
This device uses a 60 Hz commercial power source as a driving source and an electromagnetic vibration mechanism.The blade angle of the comb blade surface 3a of the fixed comb blade 3 is kept constant, and the first movable member slides overlapping with the fixed comb blade 3. Edge angles θ ₁ , θ of the movable comb blades or the comb blade surfaces 7, 27 of the second movable comb blades 6, 26
The test was conducted by changing the aperture angle θ for hair introduction shown in FIG. 6 by sequentially changing ₂ . The point at which the cutting edge of the clipper A abuts the fiber D at right angles as indicated by the arrow P is a point that has descended 3 cm from the support point of the fiber D to the free end. Table 1 shows the number of fibers D cut by one press of hair clipper A collected on a blank sheet F on test table B, and the number of fibers D cut out of the 100 cut as a percentage. It is.

[Table] As is clear from this result, the aperture angle θ is 20
At ゜, it breaks more than 90% without being affected by the pressing force, and is almost unaffected by the pressing force. In addition, at a wide opening angle such as 170°, there is almost no cutting and there is no effect of pressing force. On the other hand, when the opening angle θ is 40° to 150°, the clipper A
It is clear that the pressing force of For example, when the opening angle θ is 100°, 36% when the pressing force is 20g,
At 80g, if the pressing force quadruples (64%), the amount of hair sheared will double. As is clear from Table 1, in practical terms, the comb blade surface 3a of the fixed comb blade 3 and the comb blade surface 7, 27 of the first or second movable comb blade 6, 26 are used for introducing the hair. It can be seen that if the opening angle θ is between 40° and 150°, the amount of hair to be trimmed can be freely adjusted according to the pressing force of the user. This is due to the reasons described below. FIG. 5 shows the blade head of a well-known hair clipper, and shows the angle formed by the respective comb blade surfaces of the fixed comb blade 53 and the movable comb blade 57, the opening angle θ ₃ as the so-called scissor angle.
Since the angle is extremely small, such as 10° to 15°, the hair that is introduced into the comb blade surface at one time is clipped without being trapped by the amount of hair and escaping. FIG. 6 shows the blade head of an embodiment based on the present invention, since the opening angle θ is as large as 40° to 150°.
Even hair once introduced into the comb blade surfaces 3a, 27 can easily escape along each comb blade surface 3a, 27.
For this reason, if the amount of hair introduced into each comb blade surface 3a, 27 increases, the hair will be cut off before it can escape.
In order to increase the amount of hair and prevent the hair from escaping, the pressure applied to the hair plays an important role, and has an effect as shown in Table 1. In this way, if the opening angle θ formed by the comb blade surface 3a of the fixed comb blade 3 and the comb blade surface 7, 27 of the first or second movable comb blade 6, 26 is an angle of 40° to 150°. You can style your hair by freely adjusting the number of hairs to be cut by adjusting the pressing force, but this also allows you to adjust the opening angle θ between the fixed comb blade 3 and the comb blade surface 3a.
A plurality of movable comb blades 6 and 26 are provided with comb blade surfaces 7 and 27 having different cutting edge angles so that multiple angles can be set between 40° and 150°. Since the opening angle θ between the first movable comb blade 6 and the fixed comb blade 3 is set to 40°, for example, the comb blade surface 7
By forming a cutting edge angle of You can finish the cutting with the blade 26, and you can also do the cutting with a step-like, inconspicuous mowing pattern as you wish. As described above, according to the present invention, the main body case 1, the first movable comb blades 6 and the second movable comb blades overlap the upper surface of the fixed comb blades 3 fixed to the front bottom of the main body case 1 and slide back and forth. It consists of a combination of movable comb blades 26, the first movable comb blade 6 and the first
The cutting edge angle θ ₁ of the comb blade surface 7 at the tip of the movable comb blade 6
The other second movable comb blades 26 each have a comb blade surface 27 with a larger cutting edge angle θ ₂ , and each of the second movable comb blades 26 has,
Concave portions 8 and 28 are formed following inclined sliding grooves 9 and 29 that are formed along a direction perpendicular to the reciprocating direction of the movable comb blade, and the fixed comb blade 3 is fixed to the front bottom of the main body case 1. Leave the same as above 1st
movable comb blade 6 or the second movable comb blade 26
is inserted and removed along the direction perpendicular to the reciprocating direction of the movable comb blades, and the tip portion 5a of the drive rod 5 for driving the movable comb blades having elastic force for pressing the movable comb blades is inserted into the recesses 8 and 28. The first movable comb blade 6 and the second movable comb blade 26 are selectively engaged and disengaged from the main body case 1.
In the installed state, the opening angle θ for hair introduction between the fixed comb blade 3 and the comb blade surface of the first movable comb blade 6 or the second movable comb blade 26 is set between 40° and 150°. Since the angle of the hair is set at 100 degrees, the amount of hair to be cut can be freely adjusted according to the selective overlapping attachment of multiple comb blades each having comb blade surfaces with different cutting edge angles and the user's pressing force. It can be used even by ordinary people who do not have the level of skill required by professionals, and it has a special effect in that the hair cut marks do not become terraced.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the head of an embodiment according to the present invention, Fig. 2 is an explanatory view of the main parts of the embodiment, a and c are upper perspective views, b and d are explanatory views of the operation, and Fig. 3 is the same. FIG. 4 is a partially cutaway perspective view of the embodiment, FIG. 4 is a test state diagram of the same embodiment, FIG. 5 is an explanatory diagram of the operation of the conventional example, and FIG. 6 is an explanatory diagram of the operation of the embodiment according to the present invention. 1... Main body case, 3... Fixed comb blade, 5... Drive rod, 5a... Tip part, 7, 27... Comb blade surface, 8, 2
8... recess, 9, 29... sliding groove, θ ₁ , θ ₂ ... cutting edge angle, θ... aperture angle.

Claims (1)

[Claims] 1 Main body case 1, a first movable comb blade 6 and a second movable comb blade 26 that overlap the upper surface of the fixed comb blade 3 fixed to the front bottom of the main body case 1 and slide back and forth.
The first movable comb blade 6
and a comb blade surface 27 having a cutting edge angle θ ₂ larger than the cutting edge angle θ ₁ of the comb blade surface 7 at the tip of the first movable comb blade 6.
The other second movable comb blades 26 have a concave portion 8, which continues to the inclined sliding grooves 9, 29 formed in the center of each movable comb blade along a direction perpendicular to the reciprocating direction of the movable comb blade. 28, and the main body case 1
With the fixed comb blade 3 fixed to the front bottom, insert or remove the first movable comb blade 6 or the second movable comb blade 26 along the direction perpendicular to the reciprocating direction of the movable comb blade. At the same time, the tip 5a of the drive rod 5 for driving the movable comb blades, which has an elastic force for pressing the movable comb blades, is engaged and disengaged from the recesses 8 and 28, and the first movable comb blades 6 and the second movable comb blades are connected to each other. The comb blades 26 can be selectively attached to the main body case 1, and in the attached state, the movable comb blades 3 and the comb blade surfaces of the first movable comb blades 6 or the second movable comb blades 26 are formed. Opening angle θ for hair introduction
A hair clipper characterized by an angle of 40° to 150°.