JPH07171017A - Depilator - Google Patents

Abstract

PURPOSE:To lower vibration and noise and to enable smooth depilation by rotating two spiral blades while attaching and detaching these blades. CONSTITUTION:This depilator instantaneously changes the rotating speeds of the plural spiral blades 2 in order to open and close these spiral blades 2. The depilator having the two spiral blades 2 rotates the one spiral blade 2 at a specified speed and varies the rotating speed of the other spiral blade 2. Namely, the instantaneous speeds of the one or both spiral blades 2 are changed in such manner that the two spiral blades 2 rotate relative to each other although the mean speeds thereof are the same. A rotational driving means 3 which rotationally drives the two spiral blades 2 drives pulleys 8 fixed to the spiral blades 2 by means of a belt 9. The pulley 8 fixed to the one spiral blade 2 is directly connected via the belt 9 to a driving shaft 12. The pulley 8 fixed to the other spiral blade 2 is connected via the belt 9 and an elliptic gear 11 to the driving shaft. This elliptic gear 11 pulsates the rotating speed of the spiral blade 2 by increasing or decreasing the rotating speed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an epilator for pinching and pulling out hair.

[0002]

2. Description of the Related Art A state in which a conventional epilator removes hair is shown in FIGS. In the epilator shown in this figure, the swing disk 1 holds the hair and pulls it out. The swing disk 1 moves in the direction shown by the arrow in FIG. 1 to capture the hair, and moves in the direction shown by the arrow in FIG. 2 to pull out the hair.

[0003]

The epilator of this structure is
In order to capture and pull out the bristles with the swing disc, a part similar to the inner blade of a rotary razor requires a part that makes a pinch cock action by the action of a cam, which complicates the drive mechanism and also increases the load. There is a drawback that it becomes louder and louder.

The present invention was developed for the purpose of solving this drawback. An important object of the present invention is to provide an epilator capable of efficiently removing hair by reducing driving noise with a simple mechanism.

[0005]

The epilator of the present invention has a structure in which the hair is sandwiched between a plurality of blades and pulled out, and has the following construction in order to achieve the above object. (A) The blade body 6 is the spiral blade 2 whose outer diameter and pitch are substantially the same. (B) The plurality of spiral blades 2 are arranged concentrically and rotatably. (C) The plurality of spiral blades 2 are connected to the rotation driving means 3 and rotated in the same direction. (D) The rotation driving means 3 is provided with a mechanism for instantaneously changing the relative speed of the plurality of spiral blades 2. The plurality of spiral blades 2 have the same number of revolutions per minute, for example, but their rotational speeds are relatively changed instantaneously. (E) A plurality of spiral blades 2 rotated in the same direction as each other
, The spiral blades 2 are separated from each other or closely contacted with each other by changing the relative speed. Hair is guided between the spiral blades 2 that are separated from each other, and the hair is sandwiched between the spiral blades 2 that are in close contact with each other and pulled out.

[0006]

The operation principle of the epilator of the present invention will be described with reference to FIGS. FIG. 3 is a perspective view showing the spiral blade 2. In the epilator, two spiral blades 2 having the shape shown in FIG. 3 are concentrically arranged. While rotating in the same direction, the two spiral blades 2 momentarily change the relative speed. If the two spiral blades 2 rotate at exactly the same speed,
The relative position of each other does not change. However, since the relative speed fluctuates instantaneously, the relative positions of the two spiral blades 2 change as shown in FIGS. 4 and 5. When the space between the spiral blades 2 is opened as shown in FIG. 4, the tips of the hairs are guided here as shown by the chain lines. When the spiral blades 2 are in close contact with each other as shown in FIG. 5, the introduced hairs are sandwiched. Since the two spiral blades 2 are rotating in the same direction, the hair is sandwiched and pulled out.
As described above, in the epilator of the present invention, the two spiral blades 2 rotate while separating or closely contacting each other, so that the hair can be sandwiched and pulled out.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. However, the examples shown below exemplify epilators for embodying the technical idea of the present invention, and the present invention does not specify the configuration of the epilators as follows.

Further, in this specification, in order to facilitate understanding of the claims, the numbers corresponding to the members shown in the embodiments are referred to as "claims column", "action column", and "action column". It is added to the members shown in the section of "Means for Solving the Problems". However, the members shown in the claims are
It is by no means specific to the members of the examples.

The epilator 4 shown in FIG. 6 is provided with a blade body 6 at the upper end of a case 5. Although not shown, the epilator shown in this figure incorporates a motor for rotationally driving the blade, a battery for rotating the motor, and a rotation driving means for rotating the blade by the motor. The epilator of the present invention is characterized by the blade and its drive mechanism. Other parts can have the same structure as the epilator currently used. Therefore, the blade body and the drive mechanism will be described in detail below.

The blade body 6 is a spiral blade 2 as shown in FIG. As shown in FIGS. 7 and 8, the two spiral blades 2 are rotatably inserted into and supported by the support shaft 7. The support shaft 7 coaxially supports the two spiral blades 2. 7 and 8
Has a spiral blade 2 of the same shape inserted through the support shaft 7. The spiral blades 2 inserted through the support shaft 7 are relatively moved to separate from each other as shown in FIG. 7, and also come into close contact with each other to remove hair as shown in FIG.

FIG. 9 shows a rotation driving means 3 for instantaneously varying the relative speed of the two spiral blades 2. The rotation driving means 3 drives a pulley 8 fixed to the spiral blade 2 with a belt 9. A pulley 8 fixed to one spiral blade 2 is directly connected to a drive shaft 12 via a belt 9. The pulley 8 fixed to the other spiral blade 2 is connected to the drive shaft 12 via a belt 9 and an elliptical gear 11. The pair of elliptical gears 11 that mesh with each other have the same number of teeth. The elliptical gear 11 instantaneously increases or decreases the rotation speed to pulsate the rotation speed of the spiral blade 2 as shown by the solid line in FIG. 10, but does not change the average speed. The other spiral blade 2 connected to the drive shaft by the belt 9 without passing through the elliptical gear 11.
Is rotated at a constant rotation speed as shown by the chain line in FIG.

FIG. 11 shows a rotary drive means 3 for driving both spiral blades 2 via an elliptical gear 11. The rotation driving means 3 slows the rotation speed of the other spiral blade 2 when instantaneously rotating the one spiral blade 2 fast. Therefore, as shown in FIG. 12, the elliptical gears 11 that drive the two spiral blades 2 are out of phase with each other by 90 degrees. The elliptical gear 11 on the driving side is connected to the drive shaft 12, and the elliptical gear 11 on the driven side is connected to the spiral blade 2 via the pulley 8 and the belt 9. The elliptical gear 11 shown in FIG. 12 has the same number of teeth, and the average speed is not changed. As shown in FIGS. 11 and 12,
When both spiral blades 2 are rotated via the elliptical gear 11,
It has a feature that the instantaneous speed change of the spiral blade 2 can be increased.

As shown in FIG. 13, the spiral blade 2 may have a shape in which the side surface holding the hair is orthogonal to the rotation axis. 1
5, the side surfaces are inclined to each other in a V shape. The pair of spiral blades 2 shown in FIG. 14 are inclined to opposite sides. The spiral blade 2 of this structure, as shown in FIG.
Hair can be pinched at the outer peripheral edge. Also, although not shown,
It is also possible to pinch the hair at the inner peripheral edge of the spiral blade. The spiral blade 2 that sandwiches the hair at the peripheral edge strongly clamps the hair in a narrow area to prevent slipping.

Epilator 4 for inserting the spiral blade 2 into the support shaft 7.
Can press the spiral blade 2 against the surface of the skin via the support shaft 7. The support shaft 7 shown in FIG. 16 has a thin central portion. The spiral blade 2 inserted through the support shaft 7 has a gap between the spiral blade 2 and the support shaft 7 in the central portion as shown in FIG. When the spiral blade 2 having this structure is pressed against the skin, the central portion thereof elastically deforms and makes gentle contact with the skin. Therefore, the spiral blade 2
Does not strongly press the local area of the skin, and has the advantage that the skin can be gently contacted over a wide area and the hair can be efficiently removed.
Further, since the spiral blade 2 is not strongly pressed against the skin, there is a feature that the spiral blade 2 can be lightly rotated.

The epilator of the above-mentioned embodiment is a combination of spiral blades 2 having the same shape. The spiral blade 2 shown in FIG. 18 is a combination of different shapes. One spiral blade 2 is shown in FIG.
The spiral blade 2 shown in FIG. 1 has a coil shape as shown in FIG.
As shown in FIG. 9, a spiral groove 2A is provided on the outer circumference. The spiral blade 2 having the groove 2A and the coiled spiral blade 2 are
The outer diameter and pitch are the same. The pitch of the spiral blade 2 having the grooves 2A is the distance d between the centers of the grooves 2A or the distance D between the centers of the ridges between the grooves 2A. The coiled spiral blade 2 and the spiral blade 2 with the groove 2A have the same pitch as in FIG.
This is for disposing the coiled spiral blade 2 in the groove 2A as shown in FIG. The width of the groove 2A is designed to be 0.3 to 1.5 mm wider than the thickness of the coiled spiral blade 2. The epilator 4 having this structure can support the coiled spiral blade 2 with the spiral blade 2 having the groove 2A. Therefore, the structure can be simplified by omitting the support shaft.

Further, FIG. 20 shows an embodiment in which a pair of spiral blades 2 are arranged in series in the longitudinal direction. The pair of spiral blades 2 located on both sides are connected to each other at the center and fixed to the pulley 8. In order to drive the remaining two spiral blades 2 which are not connected to the central pulley 8, pulleys 8 are arranged at both ends to fix the spiral blade 2. Central pulley 8A
Is rotated at a constant speed via the belt 9 and the gear 10. The pulleys 8B at both ends are rotationally driven by instantaneously changing the speed via the belt 9 and the elliptical gear 11.
In this way, a pair of spiral blades 2 connected in series is
As shown in FIG. 20, when one spiral blade 2 approaches each other, the other spiral blade 2 is positioned so as to separate from each other. This is to disperse the increase in driving torque when the spiral blades 2 are in close contact with each other, and to make the load on the motor uniform. In order to realize this, the elliptical gears 11 that drive the pulleys 8 on both sides are 90 degrees out of phase with each other. In the spiral blade 2 shown in FIG. 20, the central pulley 8A can be driven by the elliptical gear 11 and the pulleys 8B at both ends can be rotated at a constant speed.

Hereinafter, a spiral blade devised to remove hair more efficiently will be exemplified. The coiled spiral blade 2 is shown in FIG.
As shown in, in the state where the spiral blades 2 are located in the middle, the thickness W of the spiral blades 2 is approximately doubled with respect to the hair-capturing distance d1. Further, the inclination angle α when the coil is viewed from the front is set to about 80 degrees.

The spiral blade 2 is made of metal or hard plastic. The spiral blade 2 shown in FIG. 22 is made of plastic,
Small convex portions and concave and convex portions 13 are formed on the outer peripheral surface. The spiral blade 2 having this structure has a feature that the uneven portion 13 can rub the surface of the skin and massage it. Further, FIG. 22 and FIG.
The joint part 14 is integrally formed at the end of the spiral blade 2 shown in FIG. The joint portion 14 is a protrusion integrally formed with the plastic spiral blade 2. The protrusion is fitted into the recess of the pulley that drives the spiral blade 2, and connects the spiral blade 2 to the pulley.

Further, the spiral blade 2 having the joint portion 14
Can be made long by connecting short spiral blades in series. The spiral blades connected to each other by the joint portion 14 form a protrusion and a recess that can be fitted into each other.

Further, the spiral blade 2 shown in FIG. 24 has a structure in which a microwave is formed on the side surface of the coil to surely catch the hair. The spiral blade 2 of this structure is shown in FIGS.
As shown in FIG. 5, it is used together with the spiral blade 2 having the side surface of the coil as a smooth surface. The microwave spiral blade 2 is locally pressed against the side surface of the adjacent spiral blades 2 and has a feature that the captured hair can be reliably pulled out without slipping. The spiral blade 2 shown in these figures has a microwave formed on both sides, but it can also have a microwave formed on one side.

27 and 28, the vertical portion 2B and the inclined portion 2C are connected to each other to form a coil-shaped spiral blade 2 in order to facilitate the attraction of hair. As shown in FIG. 29, the spiral blade 2 shown in these drawings has a vertical portion 2B at a pitch of 90 degrees.
And horizontal portions are alternately provided to form a spiral coil. As shown in FIG. 30 and FIG. 31, the spiral blade 2 of this structure is arranged with the vertical portion 2B and the horizontal portion being close to each other.

The spiral blade 2 of the above embodiment has a circular outer periphery. The epilator of the present invention does not specify the outer circumference of the spiral blade 2 as a circle. The outer circumference of the spiral blade 2 may be elliptical. Further, although the epilator of the present invention is not shown, three or more spiral blades may be concentrically arranged to pull out the hair.

The epilator of the present invention instantaneously changes the rotation speed of the spiral blade 2 in order to open or close the space between the spiral blades 2. This is because the gap does not change when the two spiral blades 2 are rotated together. The epilator 4 having two spiral blades 2 rotates one spiral blade 2 at a constant speed and changes the rotation speed of the other spiral blade 2.
That is, the two spiral blades 2 have the same average speed, but the instantaneous speeds of one or both of the spiral blades 2 are changed so as to move relative to each other.

The rotation drive means 3 for rotationally driving the two spiral blades 2 as described above is shown in the following figures. FIG. 32 shows the mechanism for driving the two spiral blades 2 in an overlapping manner.
The rotation driving means 3 shown in this figure rotates the lower end gear 10 by a motor. The spiral blade 2 rotated at a constant speed is rotated via three gears 10. The spiral blade 2 whose rotational speed fluctuates is rotated via the elliptical gear 11.

Further, FIG. 33 shows a rotation driving means 3 for driving two spiral blades by a motor 15. The rotary drive means 3 shown in this figure connects a drive shaft 12 to a rotary shaft of a motor 15 via a gear 10. The drive shaft 12 fixes the gear 10 at both ends, and the gear 10 at the right end rotates one spiral blade at a constant speed via the three gears 10. further,
The gear 10 fixed to the left end of the drive shaft 12 has an elliptical gear 11 fixed to the side surface. The elliptical gear 11 that meshes with the elliptical gear 11 is arranged above, and the elliptical gear 11 above is also fixed to the side face with the gear 10. The gear 10 is connected to the other spiral blade 2 to change the rotation speed.

The rotary drive means 3 can be provided with a torque limiter 16 on the drive shaft 12 as shown in FIG. The drive shaft 12 having the torque limiter 16 has a feature that it can prevent the motor 15 from slipping and receiving an excessive rotational torque when the rotational torque of one of the two spiral blades 2 increases due to the close contact of the two spiral blades 2.

Further, FIG. 35 shows the rotation driving means 3 for varying the rotation speeds of both spiral blades 2. The rotary drive means 3 shown in this figure has elliptical gears 11 fixed to both ends of a drive shaft 12 rotated by a motor 15 with their phases shifted by 90 degrees. An elliptical gear 11 that meshes with the drive gear is provided, and the gear 10 is fixed to the elliptical gear 11 to rotate the spiral blade 2. Rotational drive means 3 of this structure
Reduces the rotation speed of the other spiral blade 2 when rotating one spiral blade 2 faster. Therefore, the rotational speeds of both spiral blades 2 can be changed.

[0028]

The epilator of the present invention has a feature that hair can be surely removed by an extremely simple mechanism. This is because the spiral blades that rotate together but whose relative speeds fluctuate relative to each other capture and pull out the hair. In particular, the epilator of the present invention has a feature that the driving mechanism can be remarkably simple because the spiral blade can be rotationally moved to catch and pinch the hair. Furthermore, since the hair is caught by the hair in a rotating motion without reciprocating motion to remove hair, there is an excellent feature that hair can be smoothly removed by reducing vibration and noise.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a tooth body of a conventional epilator captures hair.

FIG. 2 is a cross-sectional view showing a state in which a tooth body of a conventional epilator is epilating

FIG. 3 is a perspective view showing a spiral blade of an epilator according to an embodiment of the present invention.

FIG. 4 is a perspective view showing a state in which the spiral blades shown in FIG. 3 are arranged between each other.

5 is a perspective view showing a state where the spiral blades shown in FIG. 3 are in close contact with each other.

FIG. 6 is a perspective view showing the appearance of the epilator of the present invention.

FIG. 7 is a perspective view showing a state where the spiral blade shown in FIG. 3 is inserted into a support shaft.

FIG. 8 is a perspective view showing a state in which the spiral blade shown in FIG. 3 is inserted into a support shaft.

FIG. 9 is a perspective view showing the rotation driving means of the spiral blade.

FIG. 10 is a graph showing the rotation speed of a spiral blade.

FIG. 11 is a perspective view showing a rotation driving means of another mechanism of the spiral blade.

12 is a side view showing an arrangement of elliptical gears of the rotation driving means shown in FIG.

FIG. 13 is a front view of the spiral blade shown in FIG.

FIG. 14 is a partially sectional front view showing a spiral blade according to another embodiment.

FIG. 15 is a partially sectional front view showing a state where the spiral blade of FIG.

FIG. 16 is a perspective view showing an example of a support shaft.

FIG. 17 is a front view showing the support shaft and the spiral blade of FIG.

FIG. 18 is a perspective view showing a spiral blade having a different shape from FIG.

FIG. 19 is a perspective view of one spiral blade of FIG.

FIG. 20 is a perspective view of a rotation driving means that drives a spiral blade via three pulleys.

FIG. 21 is an enlarged front view of the main part of the spiral blade shown in FIG.

FIG. 22 is a perspective view of a spiral blade having an uneven surface.

FIG. 23 is a perspective view of a spiral blade provided with a joint portion.

FIG. 24 is a perspective view of a spiral blade having a microwave on its side surface.

FIG. 25 is a perspective view of a tooth portion using a spiral blade with a microwave.

FIG. 26 is a front view of a tooth portion using a spiral blade with a microwave.

FIG. 27 is a perspective view showing a spiral blade having a vertical portion and an inclined portion.

FIG. 28 is a front view showing a spiral blade having a vertical portion and an inclined portion.

FIG. 29 is a side view showing a vertical portion and a horizontal portion of the spiral blade.

FIG. 30 is a perspective view of a tooth portion using the spiral blade of FIG. 29.

31 is a front view of a tooth portion using the spiral blade of FIG. 29. FIG.

FIG. 32 is a side view showing an elliptical gear and a gear of the rotation driving means.

FIG. 33 is a perspective view of a rotation driving means including an elliptical gear.

FIG. 34 is a perspective view of a rotation driving means having a torque limiter.

FIG. 35 is a perspective view of a rotation driving unit that changes the rotation speeds of both spiral blades with an elliptical gear.

[Explanation of symbols]

1 ... Swing disk 2 ... Spiral blade 2A ... Groove 2B ... Vertical part
2C ... Inclined part 3 ... Rotational drive means 4 ... Epilator 5 ... Case 6 ... Blade 7 ... Support shaft 8 ... Pulley 8A ... Pulley 9 ... Belt 10 ... Gear 11 ... Elliptical gear 12 ... Drive shaft 13 ... Concavo-convex part 14 ... Joint part 15 ... Motor 16 ... Torque limiter

Claims (1)

[Claims] 1. An epilator having the following structure, in which hair is sandwiched between a plurality of blades and pulled out. (A) The blade body (6) is a spiral blade (2) having substantially the same outer diameter and pitch. (B) A plurality of spiral blades (2) are concentrically rotatably arranged. (C) The plurality of spiral blades (2) are connected to the rotation driving means (3) and rotated in the same direction. (D) The rotation driving means (3) is provided with a mechanism for instantaneously changing the relative speed of the plurality of spiral blades (2). (E) Multiple spiral blades that are rotated in the same direction (2)
The relative speed of is changed so that the spiral blades (2) are separated from each other or closely contacted with each other so that the hair is pinched and pulled out.