JPH10234461A - Body hair treatment tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount and demount a heater cassette simply, easily and smoothly, and detachably joint the heater cassette to a tool body in a proper way under the application of a very simple structure. SOLUTION: A body hair treatment tool is formed out of a heater cassette 1 having a heater 3, and a tool body for detachably mounting the heater cassette 11. Also, the heater cassette 11 has an end knobs 11A at both ends in such a state as exposed to both ends of the tool body and as well has a connection aperture 11B for connection to the tool body. The tool body has an insertion rod 9 to be inserted in the connection aperture 11B of the heater cassette 11, and the heater cassette 11 is detachably provided between the combs of the tool body by holding both the knobs 11A. Also, the heater cassette 11 is mounted on the tool body with the insertion rod 9 of the tool body passed through the connection aperture 11B of the heater cassette 11, and jointed to the tool body electrically as well as mechanically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body hair treating device that burns off unwanted hair on the body surface with a heater.

[0002]

2. Description of the Related Art Body hair treatment tools for burning off unwanted hair on the body surface with a heater have been developed. The body hair treatment tool is heated by energizing a heater that is a nichrome wire. The heated heater is
Burn off contacting hair. The heater is dangerous if it comes into direct contact with the skin, so combs are provided on both sides. The hair treatment tool of this structure is used to remove the hair that passes through the comb and is guided inside.
Burn off with a heater.

[0003] The hair treatment device having this structure needs to have a structure capable of removing foreign substances adhering to the heater neatly. In order to realize this, a body hair treatment tool having a structure in which a comb disposed on both sides of a heater can be detached has been developed (Japanese Patent Laid-Open No. 8-289814). Although the hair treatment tool having this structure can remove foreign substances adhering to the heater, it has a disadvantage that it cannot be easily replaced when the heater is cut off. This disadvantage can be solved by mounting the heater in the heater cassette and mounting the heater cassette on the main body so as to be detachable. With the hair treatment device having this structure, the heater cassette can be removed to remove foreign substances adhering to the heater, and further, the heater cassette can be replaced, and the broken heater can be easily replaced with a new one.

[0004] Body hair treatment tools in which a heater cassette is detachably attached to a main body are described in Japanese Utility Model Publication No. 4-37521 and Japanese Utility Model Registration No. 300125. As shown in FIGS. 1 and 2, the body hair treatment tools described in these publications have a built-in heater cassette 11 that can be pulled out and attached in a longitudinal direction. When the heater cassette 11 is inserted, the heater terminal 10 is made to protrude from the tip in order to energize the heater 3.

[0005]

As described above, the body hair treatment tool for attaching and detaching the heater cassette 11 in the longitudinal direction requires a mechanism for disposing the heater cassette 11 at a fixed position of the main body 1. As shown in FIG. 3, the heater cassette 11 is provided with a ridge 12 on both sides, and the ridge 12 is inserted into a groove provided in the main body 1, and the heater cassette 11 is disposed at a fixed position. In the heater cassette having this structure, shavings and the like burned off by the heater may enter the gap between the ridge and the groove, and may not be smoothly detached. In particular, the body hair treatment device that burns and cuts hair has a drawback that burnt shavings enter between the ridges and grooves, making it difficult to slide smoothly. Further, the grooves for sliding the ridges of the heater cassette are arranged inside the combs provided opposite to each other, so that it is difficult to clean the grooves cleanly, and the filings collected here are difficult to clean. , Making it difficult to attach and detach the heater cassette.

[0006] In particular, the hair treatment device of this structure has a drawback that the heater cassette which cannot slide smoothly becomes extremely difficult to pull out. This is because a small knob provided at the end of the heater cassette is picked and pulled out from the main body. This knob is difficult to enlarge due to its external design. If the size is too large, the appearance design is deteriorated. The small knob cannot be grasped strongly to pull out the heater cassette forcibly, making it difficult to attach or detach the heater cassette that cannot slide smoothly. Further, the heater cassette, which cannot be detached, has a disadvantage that the hair filings gradually accumulate between the ridges and the grooves, making detachment more difficult.

[0007] The present invention has been developed for the purpose of further solving this drawback. An important object of the present invention is to provide a hair treatment tool which can easily and easily and smoothly attach and detach a heater cassette, and can reliably and detachably connect the heater cassette to a main body with an extremely simple structure.

[0008]

According to a first aspect of the present invention, there is provided a hair treatment device comprising: a heater cassette 11 having a heater 3 which generates heat when energized; and a main body 1 to which the heater cassette 11 is detachably mounted. Prepare. The main body 1 has a built-in power supply for heating the heater 3. Further, the body hair treatment tool of the present invention has the following unique configuration. (A) Hold the heater cassette 11 at both ends,
Both ends are provided with both end knobs 11A so that the heater 3 can be attached and detached in a direction perpendicular to the heater 3. Both ends knob 11A
Are exposed at both ends from between a pair of combs 6 provided on the main body 1 so that they can be gripped. (B) The heater cassette 11 has a connection opening 11B for detachably connecting to the main body 1. (C) The connection opening 11B is located at the center of the heater 3 and is opened downward. (D) A pair of heater terminals 10 connected to both ends of the heater 3 are arranged on the inner surface of the connection opening 11B opposite to each other. (E) The main body 1 is connected to the connection opening 1 of the heater cassette 11.
It has an insertion rod 9 formed in a shape to be inserted into 1B. (F) The insertion rod 9 is formed of an insulating material so that the connection terminal 8 can be insulated and disposed on the facing surface. (G) On both sides of the insertion rod 9, connection terminals 8 that are electrically connected to the heater terminals 10 provided on the surface facing the connection opening 11 </ b> B are provided. (H) The heater cassette 11 is detachably mounted between the combs 6 of the main body 1 in a direction perpendicular to the heater 3 by grasping the knobs 11A at both ends. (I) The heater cassette 11 is the heater cassette 1
The insertion rod 9 of the main body 1 is inserted into the connection opening 11B of the main body 1 and attached to the main body 1. In this state, the heater cassette 1
1 is mechanically connected to the main body 1 and is also electrically connected.

In the body hair treatment device of the second aspect of the present invention, the connection terminals 8 are made of an elastic metal plate. This connection terminal 8
A locking tapered portion 8A that gradually widens the interval between the pair of connection terminals 8 is connected to the distal end thereof, and is connected to the tip more than the locking tapered portion 8A, so that the interval between the pair of connection terminals 8 is gradually narrowed. And an insertion taper portion 8B. The boundary between the locking taper portion 8A and the insertion taper portion 8B elastically protrudes from the surface of the insertion rod 9. When the insertion rod 9 is inserted into the connection opening 11 </ b> B of the heater cassette 11, the locking tapered portion 8 </ b> A having a gradually increased space is elastically pressed against the inner surface of the heater terminal 10. In the hair treatment device having this structure, the heater terminal 10 of the heater cassette 11 is
It is locked by the locking tapered portion 8A that is inclined in the direction in which it is difficult to pull out.

According to a third aspect of the present invention, there is provided a body hair treating device, wherein the insertion rod 9 is a molded plastic product, the connection terminal 8 is an elastic metal plate, and the insertion rod 9 is built into the main body 1 via the connection terminal 8. To a printed circuit board 7 to be formed.

According to a fourth aspect of the present invention, there is provided a body hair treatment tool, wherein a groove 9D for guiding the distal end of the connection terminal 8 is provided at the distal end of the insertion rod 9.
Is provided. The connection terminal 8 is connected to a fixed position of the insertion rod 9 by inserting the tip of the connection terminal 8 into the groove 9D.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. However, the following examples illustrate body hair treatment tools for embodying the technical idea of the present invention, and the present invention does not specify body hair treatment tools as follows.

Further, in this specification, in order to make it easier to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims” and “ In the column of “means”.
However, the members described in the claims are not limited to the members of the embodiments.

The body hair treatment tool shown in FIGS. 4 to 7 has a heater cassette 11 attached to the tip of the main body 1. The main body 1 includes a battery 4 for heating the heater 3 inside a case,
A timer for limiting the heating time of the heater 3 is incorporated. Further, the main body 1 is provided with a switch 5 for controlling energization of the heater 3, and a knob of the switch 5 is exposed outside the case.

The heater cassette 11 has a heater 3 and a heater terminal 10 built in a plastic heater case 2. As shown in an exploded perspective view of FIG. 8, the heater case 2 is formed into a shape divided into two parts by plastic. The heater cassette 11 is assembled by incorporating a heater terminal 10 for connecting the heater 3 into the heater case 2 on the left side in the figure and then connecting the heater case 2 on the right side.

The heater cassette 11 has both end knobs 11A at both ends so that it can be gripped at both ends and can be attached and detached in a direction perpendicular to the heater 3 as shown by arrows in FIGS. Both end knobs 11A are exposed outside from between the pair of combs 6 in a state where the heater cassette 11 is mounted on the main body 1. Heater cassette 11 shown in the figure
Has four rows of ridges 11C formed on the surface of the both-end knob 11A in order to prevent slippage during attachment and detachment.

Further, the heater cassette 11 is provided with a connection opening 11B which is located at the center of the heater 3 and opens downward so as to be detachably connected in the direction shown by the arrows in FIGS. It is open. As shown in FIGS. 8 and 9, a pair of heater terminals 10 connected to both ends of the heater 3 are provided on the inner surface of the connection opening 11 </ b> B opposed to each other.

The heater terminal 10 has a thin nichrome wire heater 3 connected to the upper end thereof. The heater 3 is connected by winding both ends thereof around the heater terminal 10. The heater terminal 10 is connected to the heater 3 at the tip, and is mounted in a fixed position of the heater case 2 itself. Heater terminal 1 shown
0 is also used as both a connection terminal for energizing the heater 3 and a pull member for preventing the slack of the heater 3. Therefore, the heater terminal 10 is made of a spring material such as a leaf spring or a spring wire that can be elastically deformed. Heater terminal 1 shown
0 is a leaf spring, but a spring wire can also be used.

The heater terminal 10 has a rear end loop portion 10A bent at a shape along the surface of a prism 2A integrally formed with the heater case 2, and an intermediate extension portion connected to the rear end loop portion 10A. 10B and a heater connecting portion 10 which is connected to the tip of the intermediate extension portion 10B and connects the heater 3.
C. The heater terminal 10 has the rear end loop portion 10A fitted to the outside of the prism 2A provided in the heater case 2, and is disposed on the inner surface of the connection opening 11B opposite to the connection opening 11B.
The heater cassette 11 shown in FIG. 1 includes a prism 2 </ b> A integrally formed with the heater case 2 and a side surface of the heater case 2.
A connection opening 11B for connecting to the main body 1 is formed. The intermediate extension 10 </ b> B of the heater terminal 10 is inserted between support columns 2 </ b> B formed integrally with the heater case 2 to mount the heater terminal 10 at a fixed position on the heater case 2.

Further, the heater case 2 includes a heater terminal 1
The corner portions of the intermediate extension portion 10B and the heater connecting portion 10C are fitted to the outside of the partition wall 2C integrally formed with the heater case 2 and are mounted at fixed positions. The partition wall 2C has both ends thereof projecting upward, and a heater connecting portion 10C is provided outside the projecting portion 2D. The outer surface of the protruding portion 2D pushes and spreads the heater terminal 10 to both sides, and attaches the heater 3 to the heater case 2 in a pulled state.

The outer surfaces of the protrusions 2D provided on both sides of the partition 2C are inclined surfaces 2E as shown in the sectional view of FIG. This is because, when the heater terminal 10 connecting the heater 3 is attached to the heater case 2 as shown by an arrow in the figure, the heater 3 is pulled. The inclined surface 2E is connected to the heater terminal 10 mounted here.
Is biased in the pulling direction of the heater 3, in other words, an inclined surface 2 </ b> E that widens the leading end interval between the two heater connecting portions 10 </ b> C. When the heater connecting portion 10C of the heater terminal 10 is inserted along the inclined surface 2E, the heater 3 is pulled and attached to the heater case 2.
A part of the heater connecting portion 10C of the heater terminal 10 mounted on the inclined surface 2E is separated from the inclined surface 2E to form a gap.
As shown in the cross-sectional view of FIG. 10, this gap can be closed by integrally forming a wedge projection 2F on the inner surface of one heater case 2. The wedge protrusion 2F is formed into a shape that is pressed into a gap between the inclined surface 2E and the heater connecting portion 10C.

The heater case 2 shown in the figure is assembled as follows. In a state where the heater terminal 10 is not attached to the heater case 2, both ends of the heater 3 are wound around and connected to the heater connecting portion 10C. When the heater terminal 10 is mounted on the heater case 2 in advance, the heater 3 is connected to the heater terminal 10 with a slack length.

Heater terminal 10 to which heater 3 is connected
Is mounted on one heater case 2. Heater terminal 10
The rear end loop portion 10A is outside the prism 2A integrally formed with the heater case 2, and the intermediate extension portion 10B is connected to the support post 2B.
Between the heater connecting portion 10C and the inclined surfaces 2 on both sides of the partition 2C.
The heater case 2 is attached to a fixed position of the heater case 2 while being put outside of E. In this state, the heater terminal 10 is attached to a fixed position of the heater case 2 while pulling the heater 3 linearly.

The other heater case 2 is connected to the heater case 2 on which the heater terminal 10 is mounted, and the opening of the heater case 2 is closed.

The main body 1 is a plastic case and is provided with a pair of combs 6 projecting from the tip. The comb 6 includes the heater 3
It is located on both sides of the. Between the combs 6, a fitting portion for detachably mounting the heater cassette 11 is provided. The main body 1 incorporates a printed circuit board 7 in an upper half portion as shown in a front view in which a case is opened in FIG.

The printed circuit board 7 includes a heater cassette 11
Is fixed so as to protrude from the upper end, and connection terminals 8 are arranged on both sides of the insertion rod 9. The insertion rod 9 is fixed to the printed board 7 via the connection terminal 8. Further, the printed circuit board 7 includes the heater 3
And a switch 5 for energizing the heater 3 are also mounted.

The connection terminal 8 is a metal plate which is elastically deformed and is fixed to the printed circuit board 7 by soldering, and a plastic insertion rod 9 is fixed to the printed circuit board 7. As shown in the perspective view of FIG.
, And an arm 8D connected to the heater terminal 10, and has an L-shape as a whole. The fixing plate 8C is provided with lead protrusions 8E on the upper and lower sides, and the lead protrusions 8E are inserted into the printed circuit board 7 and fixed by soldering.

The arm 8D of the connection terminal 8 is shown in FIGS.
As shown in FIG. 2, the tip is bent into a mountain shape protruding outward. Arm 8D of connection terminal 8 of this shape
Is an engagement taper portion 8A that gradually widens the interval between the pair of connection terminals 8, and an insertion taper portion that is connected to a tip end of the engagement taper portion 8A and that gradually narrows the interval between the pair of connection terminals 8. 8B. Locking taper 8
The boundary between A and the insertion taper portion 8B elastically protrudes from the surface of the insertion rod 9.

When the insertion rod 9 is inserted into the connection opening 11B of the heater cassette 11, the connection terminal 8 having this structure elastically presses the locking taper portion 8A having a gradually widening gap against the inner surface of the heater 3, The heater cassette 11 can be connected so as not to come off.

The insertion rod 9 is formed of plastic so as to be connected to the printed circuit board 7 via the connection terminal 8. The insertion rod 9 includes a corner post 9 </ b> A located at a corner of the L-shaped connection terminal 8 and a pair of connection terminals 8.
And a rod portion 9B located between the two. The corner pillar portions 9A arranged apart from each other are connected by a bottom plate 9C,
The rod 9B is also connected to the bottom plate 9C, and the whole is integrally formed of plastic. The L-shaped connection terminal 8 is inserted inside the corner pillar 9A and outside the rod 9B, and the connection terminal 8 is connected to the insertion rod 9.

Further, the rod portion 9B has a groove 9D for receiving the distal end of the connection terminal 8 at the distal end. The groove 9D has a slit 9E at the bottom. The connection terminal 8 is formed such that the width of the insertion tapered portion 8B at the distal end is smaller than the width of the groove 9D so as to be inserted into the groove 9D of the rod portion 9B. Provided. The insertion taper portion 8B is inserted into the groove 9D, the protrusion 8F at the tip is inserted into the slit 9E, and the connection terminal 8 is connected to the insertion rod 9 without being separated. Insertion rod 9 of this structure
Are fixed so that the connection terminals 8 are fixed to the printed circuit board 7 so as not to be displaced reliably.

When the heater cassette 11 is mounted on the main body 1, the heater terminals 10 of the heater cassette 11 are electrically connected to the connection terminals 8 fixed to the printed circuit board 7 built in the case of the main body. Further, the connection terminal 8 is inserted between the heater terminals 10 of the heater cassette 11 to mechanically connect the heater cassette 11 to the main body 1. In particular, the connection terminal 8 shown in the figure is made of an elastic metal plate that is elastically deformed, and this is elastically pressed against the inner surface of the heater terminal 10 to connect the heater terminal 11 so as not to come off.

Further, the heater cassette 11 shown in FIG.
Is attached to the main body 1 to make sure
On both sides of the lower end of the heater case 2, elastic protrusions 2I are projected. The elastic protrusion 2I is inserted into a hooking recess 1A provided in a case of the main body 1, and the heater cassette 1
Connect 1 in place with moderation.

[0034]

The hair treatment device of the present invention has a feature that the heater cassette can be easily and easily and smoothly attached to and detached from the main body. Another feature is that the heater cassette can be reliably connected to the main body in a detachable manner with an extremely simple structure. That is, the hair treatment device of the present invention has a heater terminal for energizing a heater built in the heater cassette, a connection terminal provided on the main body, and mechanically connecting the heater cassette to the main body, and at both ends of the heater cassette. This is because both ends of the heater cassette are provided, and both ends of the heater cassette are gripped by the both ends of the heater cassette so that the heater cassette can be detached in a direction perpendicular to the heater.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional hair treatment device.

FIG. 2 is an enlarged sectional view of the body hair treatment tool shown in FIG. 1;

FIG. 3 is a perspective view of a heater cassette of the hair treatment device shown in FIG. 1;

FIG. 4 is a front view of the body hair treatment tool according to the embodiment of the present invention.

FIG. 5 is a side view of the body hair treatment tool shown in FIG. 4;

FIG. 6 is a plan view of the body hair treatment tool shown in FIG. 4;

FIG. 7 is a front view showing a state in which the case of the body hair treatment tool shown in FIG. 4 is opened.

8 is an exploded perspective view showing a state in which a heater cassette of the hair treatment device shown in FIG. 4 is opened.

FIG. 9 is a plan view showing a state where an insertion rod is inserted into the heater cassette shown in FIG. 8;

10 is a sectional view of the heater cassette shown in FIG. 9 taken along line AA.

FIG. 11 is an exploded perspective view showing a state where a connection terminal and an insertion rod are connected to a printed circuit board.

FIG. 12 is an enlarged perspective view showing a connection portion between a distal end portion of an insertion rod and a connection terminal.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body 1A ... Hook recess 2 ... Heater case 2A ... Square pillar 2
B ... Support column 2C ... Partition wall 2D ... Protrusion 2E ... Incline 2F ... Wedge projection 2I ... Elastic projection 3 ... Heater 4 ... Battery 5 ... Switch 6 ... Comb 7 ... Printed circuit board 8 ... Connection terminal 8A ... Locking taper Part 8
B: insertion taper portion 8C: fixing plate 8D: arm 8E: lead projection 8F: projection 9: insertion rod 9A: corner column 9
B: rod portion 9C: bottom plate 9D: groove 9E: slit 10: heater terminal 10A: rear end loop portion 1
0B: middle extension part 10C: heater connection part 11: heater cassette 11A: both ends knob
11B ... connection opening 11C ... convex line 12 ... convex line

Claims (4)

[Claims] A heater cassette (11) having a heater (3) that generates heat when energized, a heater power supply for heating the heater (3), which is detachably mounted on the heater cassette (11). A hair treatment tool comprising: (A) The heater cassette (11) has knobs (11A) at both ends at both ends thereof, and the knobs (11A) at both ends are provided between a pair of combs (6) provided on the main body (1). Has been exposed. (B) The heater cassette (11) has a connection opening (11B) for connecting to the main body (1). (C) The connection opening (11B) is located at the center of the heater (3) and is opened downward. (D) A pair of heater terminals (10) connected to both ends of the heater (3) are provided on the inner surface of the connection opening (11B) facing the connection opening (11B). (E) The main body (1) is a connection opening of the heater cassette (11).
Insertion rod (9) molded into a shape to be inserted into (11B)
Having. (F) The insertion rod (9) is formed of an insulating material. (G) On both surfaces of the insertion rod (9), connection terminals (8) are provided, which are electrically connected to heater terminals (10) provided on the opposite surface of the connection opening (11B). (H) The heater cassette (11) is detachably mounted between the combs (6) of the main body (1) in a direction perpendicular to the heater (3) by gripping the knobs (11A) at both ends. . (I) Heater cassette (11)
Insert the insertion rod (9) of the main body (1) into the connection opening (11B) of (1) and mount it on the main body (1) .In this state, the heater cassette (11) is mechanically attached to the main body (1). It is configured so as to be connected as well as electrically. 2. A connection terminal (8) which is an elastic metal plate, a locking taper (8A) at the tip end thereof for gradually increasing the interval between the pair of connection terminals (8), and a locking taper (8A). 8A), and has an insertion taper portion (8B) that gradually narrows the interval between the pair of connection terminals (8), and includes a locking taper portion (8A) and an insertion taper portion (8B). The boundary is the insertion rod
It is elastically protruded from the surface of (9), and is inserted into the connection opening (11B) of the heater cassette (11).
When the is inserted, the locking taper part gradually becomes wider
2. The body hair treatment tool according to claim 1, wherein the body hair treatment tool is configured to be elastically pressed against an inner surface of the heater terminal. 3. The insertion rod (9) is a molded plastic product, the connection terminal (8) is an elastic metal plate, and the insertion rod (9) is built into the main body (1) via the connection terminal (8). Printed circuit board (7)
The body hair treating device according to claim 1, which is fixed to the body hair treating device. 4. The insertion rod (9) has a groove (9D) at its distal end for guiding the distal end of the connecting terminal (8), and the distal end of the connecting terminal (8) has a groove.
The body hair treatment device according to claim 3, wherein the connection terminal (8) is inserted into the (9D) and the connection terminal (8) is connected to a fixed position of the insertion rod (9).