JPS6346682B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a case, and relates to a case that is divided into two parts, for example, a case in which a two-part main body case of a hair styling device or an electric toothbrush is fixed.

In conventional hair styling and beauty devices, the main body case is divided into two parts, and the two parts are fixed using screws or the like.

For this reason, even though it is a beauty product and generally requires a gripping structure with no protruding parts, the head of the screw is exposed on the surface, making it unsightly and clumsy. At the same time, it is difficult to hold the case, and since the two-part case is fixed with screws, it is difficult to handle and has low productivity.

The present invention was developed to broadly solve the above-mentioned problems, and aims to provide a case that can be configured as a two-part case with high productivity without using screws. That is the purpose.

The present invention provides a semi-cylindrical case made of an elastic body, each of which has a semi-cylindrical tube having a mating claw protruding from the upper surface thereof, and a peripheral wall of the semi-cylindrical case made of an elastic body. A fixing boss is provided on the inner periphery of the semi-cylindrical tube and protrudes in a direction orthogonal to the protruding direction of the fitting claw, and a fixing hole that fits into the boss is provided on the inner periphery of the semi-cylindrical tube. It is provided on the peripheral wall of the fitting and fixing tube.

Next, one embodiment of the present invention will be described with reference to the drawings.

Here, FIG. 1 is a partially opened sectional plan view of a hair styling beauty device according to an embodiment of the present invention, FIG. 2 is a partially opened sectional front view of the same, and FIG. 2
Figure 4 is a sectional view taken along line AA in Figure 2, Figure 5 is a sectional view taken along line BB in Figure 2, Figure 6 is a right side view with the electric cord removed. Similarly, C-
FIG. 7 is a sectional view taken along line C, FIG. 7 is an illustrative circuit diagram of the above-mentioned hair styling and beauty device, and FIG. 8 is an exploded perspective view showing the fixing part of the case in one embodiment of the present invention. be.

In the figure, numerals 1 and 2 are semi-cylindrical main body cases related to the semi-cylindrical case, which are butted and fixed at the center.

Inside the main body cases 1 and 2, a motor 5 equipped with a fan 7 is fixed to a motor support 6 and held between the inner surfaces.

In addition, the main body cases 1 and 2 each have an air outlet 4 on the front part (wind blowing side), a fitting claw 11 protruding from the upper surface, an inner circumferential rib 12 on the end, and a fixed inner circumference. A semi-cylindrical tube 10 with a boss 13 formed thereon is integrally molded, and is made of an elastic body with a suction port 3 formed at the rear (wind suction side), and a power cord 9 is connected between the two. A contact holder 8 that is electrically connected and rotatably held is fixed therein, and an opening for operating the switch 14 is separately provided in the main body case 2.

Reference numeral 15 denotes a hair winding bobbin for a hair winding attachment, which is molded from a heat-resistant resin such as polycarbonate, and has an outer circumferential rib at one end that fits inside the inner circumferential rib 12 of the semi-cylindrical tube 10. 19, and the other end is provided with a guide rib 28 on the outer periphery.
a stepped hole 18 in which a movable shaft 25 having a stepped portion 26 having a relative plane 25a and a pin 27 slides;
A grip part 16 is provided which communicates with this and has a push button 35 and an inner peripheral hole 20 containing a push spring 36, and the outer periphery has a plurality of elongated holes 17 passing through the inner surface and a grip part 16 for holding the hair. A metal pin 37 is provided upright.

Reference numeral 21 denotes a heating tube made of aluminum or the like, which has a guide hole 23 at one end, a fixed tube 22 larger in diameter than the other parts, and an inner surface of the semi-cylindrical tube 10 mentioned earlier. A fixing hole is provided into which a fixing boss 13 provided at the bottom is inserted, and a plurality of hot air holes 24 are provided on the outer periphery of the fixing hole.

The above-mentioned guide hole 23 is connected to the movable shaft 25 mentioned earlier.
The heating tube 21 is slidably fitted into the guide rib 28 of the heating tube 21.
It also serves to prevent the movable shaft 25 from rotating.

Reference numeral 29 denotes a heat-insulating tube related to the fitting and fixing tube made of a heat-resistant resin such as glass-filled Juranex, and has a fitting portion on the outer periphery that fits with the fitting claw 11 provided on the inner surface of the semi-cylindrical tube 10. A fitting hole 30 is provided facing each other, and at a position rotated 90 degrees from the fitting hole 30, a fitting hole 30 is provided on the inner surface of the semi-cylindrical tube 10 and protrudes in a direction orthogonal to the protruding direction of the fitting claw 11. A fixing hole 30a is provided through which the fixing boss 13 passes.

Similarly, 31 is a heater support boss made of a heat-resistant resin such as glass-filled Juranex,
In the center, there are a half groove 38 that holds a long flat ceramic heater 33 (including a voltage drop resistor and a positive temperature coefficient resistance element) about 1 mm thick, and an air hole 3.
2 is provided. Reference numeral 34 denotes an electrode of the ceramic heater 33, which is connected to the motor terminal and the terminal of the switch 14 by a lead wire.

The assembly of the above-mentioned device will be described later, but first, the operation of the hair styling and beauty device having the above-mentioned structure will be explained below.

When the plug of the power cord 9 is inserted into an outlet and the switch 14 is turned on, the voltage-dropped power is applied to the motor 5 by the ceramic heater 33, causing the motor 5 to rotate and the front air outlet 4 to be turned on.
and blows cold air to the air holes 32.

At this time, the ceramic heater 33 is heated, and the heat transmitted from the heating tube 21 to the hair winding bobbin 15 passes through the air hole 32 and the surface of the ceramic heater 33, and the heat is transferred to the hot air hole on the surface of the heating tube 21. The hair wound around the hair winding bobbin 15 is curled with warm air blown from the hair winding bobbin 15.

On the other hand, the cold air blown out from the air outlet 4 hits the outer peripheral surface of the hair wound around the hair winding bobbin 15, and fixes the curl of the hair after winding.

In addition, as a method of utilizing heat and wind,
Examples of its use include one in which the air outlet 4 is blocked and all of the cold air is blown out from the air outlet 4, and one in which the air outlet 4 is blocked and all of the cold air is sent into the air hole 32.

The above hair winding bobbin 15 has a push button 35
By pressing , the stepped portion 26 having the relative plane 25a of the movable shaft 25 interlocked therewith is removed from the stepped hole 18 of the hair winding bobbin 15, and freely rotates around the outer periphery of the heating tube 21.

When the push button 35 is returned to its original position, the stepped portion 26 having the relative plane 25a of the movable shaft 25 and the stepped hole 18 of the hair winding bobbin 15 are fitted again, and the heating tube 21 and the hair winding bobbin 15 are fitted together again. is locked.

As described above, according to the above, by providing a hole in the heat source support boss inside the hair wrapping attachment and introducing wind to the heat source, the outer circumferential surface of the hair wrapping attachment is Hot air can be blown out from the main body case, and cold air can be blown out from the outlet of the main body case.

Therefore, warm air is efficiently transmitted to the hair wrapped around the hair wrapping attachment, and cold air is applied to the outer circumferential surface of the hair, making it possible to curl and fix the curls at the same time.

Furthermore, since the heat source device is installed inside the hair wrapping attachment, the main body case can be made small, making the entire product small and lightweight, and easy to handle and store.

The above-mentioned device is assembled in the following manner.

That is, the fixing hole provided in the fixing tube 22 of the heating tube 21 in the hair winding bobbin 15 related to the partially assembled hair wrapping attachment, and the fixing hole 30a of the heat insulating tube 29 related to the fitted fixing tube. After fitting together, the heater support boss 31 of the component assembly for the motor 5 and the like equipped with the contact holder 8 is attached to the fixed tube 22.

And the heat insulation pipe 29 in the above-mentioned mounting part assembly
When the fixing hole 30a (lower side) is inserted into, for example, the fixing boss 13 of the semi-cylindrical tube 10 of the main body case 1, the fitting claw 11 of the main body case 1 will fit into the fitting hole 30 of the heat insulating tube 29. Together, they are fixed.

Next, when the other main body case 2 is elastically pushed in in the same manner as described above so as to close the main body case 1, the fitting claw 11 and the fitting hole 30 are engaged and fixed, and the assembly is completed. It is something that will be completed.

In this case, since the fixed boss 13 is formed to protrude in a direction perpendicular to the protruding direction of the fitting claw 11,
The more the fitting hole 30 of the heat insulating tube 29 serving as the fitting fixing tube engages with the fitting claw 11 and acts to pull the main body cases 1 and 2 together, the more the fixing boss 13 protrudes in the center fixing direction. This allows the fixing hole 30
The fitting between a and the fixed boss 13 becomes even stronger and more reliable.

This ensures the degree of fitting of the fixed boss 13, and prevents the heat insulating pipe 29 from rotating in the circumferential direction or shifting in the front-rear direction. The degree of fitting of the claws 11 can also be maintained reliably, and the mating surfaces of the main body cases 1 and 2 will not shift and the appearance will not be impaired.

As described above, the semi-cylindrical tube 10 having the fixing boss 13 and the fitting claw 11 is provided at the ends of the two-split main body cases 1 and 2, and the semi-cylindrical tube 10 is fixed to the heat-insulating tube 29 inserted into the inner surface of the semi-cylindrical tube 10. By providing the fixing hole 30a and the fitting hole 30 that fit into the boss 13 and the fitting claw 11, respectively, the main body cases 1 and 2 can be fixed. In this case, a fixing hole is provided in the fixing tube 22 of the heating tube 21, so that the attachment for wrapping hair around the main body cases 1 and 2 can be fixed.

Moreover, it is possible to obtain a hairdressing beauty device that has a good appearance and is easy to assemble without exposing the screw heads on the outer surfaces of the main bodies 1 and 2.

Furthermore, in the above case, the main body case 2
An opening for operating the switch 14 is provided in the main body case 1, 2, but if this is made into a thin part during molding and punched out as necessary, the main body case 1, 2
Since only the same type of equipment is needed, productivity is extremely high, including in terms of inventory management and parts selection.

Note that the fitting hole 30 in the above embodiment may have a fitting shape of a recess.

Further, although the above embodiment relates to a hair styling beauty device, the present invention also applies to devices including those in which a heat source device is housed in a case, such as an electric toothbrush, etc.
It is a general-purpose device that can be widely used in case configurations that are assembled from cases that are broadly divided into two parts.

As described above, according to the present invention, each of the semi-cylindrical cases made of an elastic body, each of which has a semi-cylindrical tube having a fitting claw protruding from the upper surface thereof, is connected to the fitting claw. The fitting portions of the semi-cylindrical tube are butt-fixed through a fitting fixing tube formed on the peripheral wall, and a fixing boss is provided on the inner periphery of the semi-cylindrical tube and protrudes in a direction orthogonal to the protruding direction of the fitting claw, and the fixing boss is fitted to the fixing boss. Since a mating fixing hole is provided in the circumferential wall of the mating fixing tube, the mating claws 11 formed on the mating surfaces of the two-part main body case 1 and 2 are pulled and butted together by the mating hole 30 of the mating fixing tube 29. The more it is fixed, the more firmly the fixing boss 13 protruding in the direction orthogonal to the fitting claw 11 is fitted into the fixing hole 30a of the fitting fixing tube 29, thereby reliably preventing the fitting fixing tube 29 from shifting. The mating surfaces of both main body cases 1 and 2 do not shift, and in particular, since the main body cases 1 and 2 are made of an elastic material, the pulling action of the fitted fixed tube 29 prevents the fitted fixed tube from shifting. will be demonstrated more reliably.

Moreover, since both the fitting claw 11 and the fixing boss 13 protruding perpendicularly thereto are formed on the inner surface of the main body cases 1 and 2, the assembly structure is not revealed to the general user from the outside, and can be used easily. It is possible to protect the user from dangers such as high temperature and high voltage inside the device due to excessive decomposition, and it is also possible to make the product excellent in design without damaging its appearance.

[Brief explanation of the drawing]

FIG. 1 is a partially opened cross-sectional plan view of a hair styling device according to an embodiment of the present invention, and FIG.
Figure 3 is a right side view with the electrical cord removed from Figure 2, and Figure 4 is a front view of the same section opened.
- Cross-sectional view along line A, Figure 5 is B-B in Figure 2
6 is a sectional view taken along the line C--C, FIG. 7 is an exemplary circuit diagram of the above-mentioned hair styling and beauty device, and FIG. 8 is a sectional view taken along the line C--C. It is a perspective view which disassembles and shows the case fixed part in this thing. 1, 2... Main body case, 10... Semi-cylindrical tube, 11...
Fitting claw, 13...fixing boss, 29...insulating pipe, 30...
Fitting hole, 30a...fixing hole.

Claims (1)

[Claims] 1. Each of the semi-cylindrical cases made of an elastic body has a semi-cylindrical tube having a fitting claw protruding from the top surface thereof, and a fitting part for the fitting claw is formed on the peripheral wall. A fixing boss is provided on the inner periphery of the semi-cylindrical tube and protrudes in a direction orthogonal to the protruding direction of the fitting claw, and the fixing hole that fits into the boss is fixed through the fitting fixing tube. A case characterized by being provided on the peripheral wall of a pipe.