JPH01212505A - Foldable hair drier - Google Patents

Abstract

PURPOSE:To decrease the occupying space of rotary click and to reduce side, by a method wherein a shaft part, with which a boss and an engaging protrusion are engaged, is formed on the inner surface of a grip divided in the axial direction of a rotary shaft, and a click engaging part with which a protrusion for a click is engaged is formed. CONSTITUTION:A hair drier comprises a blast device formed with a motor M and a Fan F, a cylindrical body 1, disposed in a heater H, and a grip 2 having the one end rotatably coupled to a coupling part 10 protruded from the body 1. A boss 13 is protruded from the one side of a coupling part 10. A click body 3 is formed in an annular shape, and a pair of engaging protrusion parts 30 and 30 are integrally protruded from an inner peripheral surface, and a protrusion 31 for a lick is integrally formed in a protruding manner in one- way. The click body 3 is engaged with the outer circumference of the boss 13 of the coupling part 10 of the body 1, and each engaging protrusion part 30 protruded from the inner periphery side is positioned in a notch 14 of the boss 13, and is adapted to lock the body 1. This constitution enables reduction of the outer size of the click body.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a folding hair dryer in which a grip is rotatably connected to a main body containing a blower and a heater, and particularly to a folding click structure thereof. [Prior Art] A foldable hair dryer is designed so that a click occurs when the grip is folded away from the main body and when the grip is protruded from the main body. For example, in the device disclosed in Japanese Utility Model Application Publication No. 61-134705, a rotating shaft protrudes from both sides of the connecting portion of the main body, and an engaging protrusion is provided protruding from the outer circumferential side of the rotating shaft. , and a ring-shaped click body with a click protrusion integrally protruding from a portion shifted by 180° is disposed concentrically with the rotation shaft and engaged with the engagement protrusion to prevent rotation. Further, the bearing into which the rotating shaft part is fitted has an engaging part in which the click protrusion of the click body engages with the grip having a cylinder on its inner surface.

[Problem to be solved by the invention]

In this case, since the click body is disposed on the outer periphery of the rotation shaft and is prevented from rotating relative to the main body by engaging with the engagement protrusion, the outer diameter of the click body is the outer diameter of the rotation shaft. It is quite large (especially in the conventional example shown above, because the wheel bearing has a structure in which a cylinder is inserted between the inner peripheral surface of the click body and the rotating shaft). Furthermore, the outer diameter of the click body is increased, and this causes the problem that the click structure occupies a large space and cannot be applied to a small hair dryer.The present invention has been developed in view of these points. The purpose is to provide a folding hair dryer that can be made smaller because the rotating click structure occupies less space. According to the present invention, a grip is rotatably connected to a main body equipped with an air blower and a heater, and the grip is rotatably connected to a main body, and a cylindrical part is cut out on the side surface of a connecting part provided on the main body. A boss is provided protrudingly, and a ring-shaped click body having an engaging protrusion on the inner peripheral surface that engages with the notch is disposed on the outer periphery of the boss,
A shaft part into which the boss and the engaging protrusion fit is formed on the inner surface of the grip that is divided in the axial direction of the rotating shaft, and a click protrusion integrally protruding from the click body engages. It is characterized in that it forms a metallic engaging portion that fits together. [Function] According to the present invention, since the click body is prevented from rotating by engaging with the boss serving as the rotation shaft, the click body is prevented from rotating.
The outer diameter of the click body can be reduced, and therefore the space occupied by the rotary click structure can be reduced.

【Example】

The present invention will be described in detail below based on the illustrated embodiment. This hair dryer includes a cylindrical main body 1 in which a blower device consisting of a motor M and a 77-inch fan and a heater H are arranged;
It consists of a grip 2 whose one end is rotatably connected to a connecting part 10 protruding from the main body 1.
A nozzle 19 is connected to the discharge port side of the tip of the main body 1, and a filter 18 is attached to the suction port side of the other end of the main body 1. The grip 2 has a pressed copper main switch 1121 on the front and a sliding south switch button 22 on the back.
A main switch 23 which can be switched by 1.22 is attached, and a power cord 24 is pulled out from the other end. The main switch button 21 is used to switch off, hot air, and cold air, and the sub switch button 22 is used to switch the heat amount of the heater H. The main body 1 has a housing that is divided into front and rear parts in the air blowing direction, which are composed of a front song 11 and a rear housing 12, and the connecting part 10 is also formed by the front housing 11 and the rear housing 15, respectively. As shown in FIGS. 2 and 3, a boss 13 is provided on one side of the connecting portion 10 in a protruding manner. However, this
13 has two notches 14. 14, a portion 13m protruding from the front housing 11, and a portion 13b protruding from the rear housing 12. The click body 3 is ring-shaped and has a pair of engaging protrusions 30, 30 integrally protruding from its inner peripheral surface, and has a click protrusion 31 integrally protruding in one direction. In the figure, 32 is a recess 1 formed to give elasticity to the click protrusion 31.The click body 3 has an engaging protrusion 30 and a click protrusion 1. The click body 3' is fitted on the outer circumference 5 of the boss 13 of the connecting part 10 of the main body 1 to connect the front and rear housings 11 and 12. Further, as shown in FIGS. 4 and #1'5, each engaging protrusion 30 protruding from the inner periphery is located within the notch 14 of the boss 13, and is prevented from rotating relative to the main body 1. The engagement protrusion 30 compensates for the notch 14 of the boss 13, making the boss 13 cylindrical.On the other hand, the grip 2 is made up of left and right housings 25 and 26, which are divided in the i-axis direction. It has
As shown in FIG. 6, a screw tightening boss 27 and an annular lip 28 surrounding the boss 27 are protruded from the inner surface of one end of the housing 26. A click engagement portion 29 is provided in a protruding manner. Further, a sleeve 40 shown in FIG. 7 is provided protruding from the inner surface of one end of the other housing 25. As shown in FIG. As shown in FIG. 7, the boss 27 protruding from the housing 26 is passed through the connecting portion 10 of the main body 1 from one side, and the sleeve 40 of the other housing 25 is inserted into the connecting portion 10 of the main body 1 from one side.
is inserted into the other side of the connecting part 10, and with the tip of the boss 27 positioned inside the sleeve sleeve 10, the tightening screw 41 is screwed into the boss 27 from the sleeve sleeve 40 side, thereby connecting the main body 1 and the grip 2. are connected, and at this time,
The boss 27 is supported by the inner circumferential surface of the boss 13 protruding from the connecting portion 10 and the engaging protrusion 30 of the click body 3, and furthermore, the inner circumferential surface of the lip 28 protruding from the housing 26 supports the boss 27. 13 and the outer surfaces of the engaging protrusions 30 are supported, so that the grip 2 can freely rotate relative to the main body 1. The click protrusion 31 in the click body 3 is
As shown in FIG. 8, it engages with a click engagement portion 29 provided on the /S lock 26 of the grip 2,
In the illustrated example, the rotation of the grip 2 with respect to the main body 1 is positioned at three locations indicated by letters in FIG. In the figure, 42 is a click body 3 protruding from the housing 26.
It is a rotating guide that slides into contact with the outer peripheral surface of the FIG. 9 and subsequent figures show a structure for incorporating a switch into the front surface of the connecting portion 10 of the main body 1. Since the above-mentioned boss 27 passes through this connecting portion 10, if the connecting portion 10 is made small, a switch cannot be incorporated in this portion in a normal form, but here, a switch body 45 is inserted.
is arranged inside the base of the connecting part 10, formed in the front housing 11 and the rear housing 12 respectively, and fixed by being sandwiched from the front and back at an angle of 146° 47, and a switch arranged on the front part of the connecting part 10. A support shaft 49 is provided at the lower end of the handle 48, and a support provided on the front housing 11 is rotatably supported between a lip 50 having a groove and a lip 51 provided on the rear housing 12. When the switch handle 48, which is partially exposed on the front side of the switch handle 48, is pushed in, the suppressing piece 54 at the upper end of the switch handle 48 pushes the operating part 55 of the switch body 45 to perform switching.
In order to avoid the boss 13, the switch body 5 is placed in a place where it would be difficult to operate, and the switch body 45 is operated using a switch handle 48 whose operated part is located at a distance from the switch body 45. That's why. The switch body 45 here is for partially short-circuiting a voltage dividing resistor inserted in series with the motor M to increase the voltage applied to the motor M and increase the amount of air blown. Further, the return of the switch/) position 48 is performed by a force that returns the operating portion 55 of the switch body 45. I. Effects of the Invention As described above, in the present invention, the rotation of the click body is prevented by the engagement between the engagement protrusion provided on the inner circumferential side of the click body and the boss serving as the rotation shaft. Therefore, it is possible to reduce the outer diameter of the click body, and therefore the space occupied by the rotating click structure can be reduced, and the foldable hair dryer can be made smaller. Moreover, since there is a detail on the inner surface of the grip where the boss and the engagement protrusion fit,
The click body is one in which the rotation of the grip also functions as an id.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of one embodiment of the present invention, Figs. 2 and 3 are exploded perspective views of the click body and connecting portion of the above, Fig. 4 is a perspective view of the same, and Fig. 5 is a front view of the same. Figure 6 is a perspective view of one housing of the grip, Figure 7 is a cross-sectional view of the rotating joint, Figure 8 is a sectional view taken along the line X-X in Figure 7, and Figure 9 is the same as above. FIG. 10 is an exploded perspective view of the connecting portion of the above, FIG. 11 is a perspective view of the switch handle, and FIG.
The figure is a rear view showing the installed state of the switch handle, in which 1 is the main body, 2 is a grip, 3 is a click body, 13 is a boss, 14 is a notch, 29 is a click engagement part, 30 is an engagement protrusion, 31 indicates a click projection. Akadama Agent Patent Attorney Ishi 1) Ai 77 Figure 3 4m 1 to 5! i. Figure 7 included Figure 8 Figure 9

Claims (1)

[Claims] (1) A grip is rotatably connected to a main body equipped with an air blower and a heater, and a cylindrical boss with a partially cut out part is attached to the side of the connecting part provided on the main body. A ring-shaped click body with an engaging protrusion on the inner circumferential surface that protrudes and engages with this notch is disposed on the outer circumference of the boss, and a ring-shaped click body is provided on the outer circumference of the boss, and the inner surface of the grip that is divided in the axial direction of the rotation shaft is , forming a shaft part into which the boss and the engaging protrusion fit, and also forming a click engaging part into which the click protrusion integrally protruding from the click body engages. A foldable hair dryer.