JPH04103808U - hair dryer - Google Patents

Abstract

(57) [Summary] [Purpose] By adding a rear case in addition to the outer case and inner case, the inner case is securely fixed to the outer case without wobbling or rattling, and it is also possible to blow air in the temporarily assembled state. To easily disassemble and perform modification work even when testing is performed. [Structure] Consists of a cylindrical outer case 1, a built-in unit 2, and a rear case 3. Built-in unit 2 is external case 1
an inner case 9 that is removably inserted into the rear open end of the inner case 9; a suction grille 10 that is removably fitted to the rear portion of the outer peripheral surface of the inner case 9; and a motor 14 that is built into the inner case 9. Also, the fan 16 and the heater 17 are integrally combined. The rear case 3 is fitted onto the outer periphery of the rear opening end of the outer case 1 and the outer periphery of the inlet grill 10, and has ribs 6 on the outer case 1 side and ribs on the inner case 9 side in a recess 22 provided on a part of the inner periphery. 24 are engaged with each other.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a hair dryer, with particular improvements to the case structure. .

0002

[Conventional technology]

This type of hair dryer is disclosed in, for example, Japanese Utility Model Publication No. 1-17204. There is one shown in Figure 10. There, the rear opening of the cylindrical outer case 1 is shown. The inner case 9 containing the motor 14 and fan 16 is inserted into the end, and the suction The engaging tongue piece 28 of the mouth grill 10 is connected to the inner peripheral surface of the rear opening end of the outer case 1 and the inner case. By sandwiching the intake grille 10 with the outer peripheral surface of the outer case 1, It is attached to the rear opening end. A projecting portion is provided at the bottom of the peripheral surface of the rear end of the outer case 1 The handle holding portion 7 and the handle holding portion 23 protruding from the lower circumferential surface of the inner case 9 are The inner and outer cases 9 and 1 are integrally connected by tightening screws 26.

0003

[Problem that the idea aims to solve]

However, in the conventional example mentioned above, tightening of the screw 26 causes the screw to move in the direction of arrow A. Since force is always applied to the inner case 9 and the intake grille 10, the inner If the case 9 is loosely fitted, the inner case 9 may wobble due to the rotation of the fan 16. It easily shakes and rattles, causing noise and chatter. As a countermeasure, external The inner case 9 is press-fitted into the base 1. However, the inner case is If the screws 9 are press-fitted, it will be difficult to assemble when assembling the main body, and it will be difficult to disassemble afterwards. Ru. Therefore, the temporary assembled state before assembling the handle 4 to the handle holding part 7/23 is In this condition, the conditions are almost the same as the actual assembled condition, so pressure tests and ventilation tests are not possible. However, even if you have to modify it in case of a test failure, it will be necessary to change it from the outer case 1 to the inner case. Since it was difficult to separate the case 9 and the suction grille 10, rework was difficult.

0004 This invention was made to solve these problems, and it is possible to add a rear case. This ensures that the inner case does not wobble or rattle in relation to the outer case. In addition to being fixed to the The aim is to make it easy to disassemble and rework when doing repairs. target

[0005]

[Means to solve the problem]

As illustrated in Fig. 1, the hair dryer of the present invention has a cylindrical outer body that is long in the front and back direction. consisting of a case 1, a built-in unit 2, and a rear case 3; The built-in unit 2 is formed into a cylindrical shape and has a rib 24 on its outer peripheral surface. 24, the inner part is inserted into and removed from the rear opening end of the outer case 1. The case 9 is formed into a crown shape with an open front, and its peripheral wall 10a is connected to the outer periphery of the inner case 9. The suction grille 1 is fitted to the rear part of the rib 24 of the 0, a motor 14 and a fan 16 built in front and back in the inner case 9, and a motor The heater 14 is integrally combined with the heater 17 attached to the front part of the heater 14. The outer case 1 and the inner case 9 are protruded from a part of the outer periphery of the rear opening end of the outer case 1. The rib 6 of the inner case 9 is butted against the rib 24 of the inner case 9; The rear case 3 is formed into a ring shape and has a recess 22 on a part of its inner circumference. This is applied to the outer periphery of the rear opening end of the base 1 and the outer periphery of the peripheral wall 10a of the suction port grill 10. The requirement is that the ribs 6 and 24 are fitted from the rear and engaged in the recess 22. That is.

[0006]

[Effect]

After assembling internal unit 2 to outer case 1 and before assembling rear case 3 Even in the temporarily assembled state, the fan 16 is rotated by the drive of the motor 14, and the air is drawn into the suction port. It is sucked in from the housing 10, heated by the heater 17, and then discharged to the front of the outer case 1. This allows pressure tests and ventilation tests to be performed. At this time, even in the case of test out, since the rear case 3 is not assembled, the built-in The inner case 9 of the unit 2 is connected to the outer case 1, and the inlet grill 10 is connected to the inner case 9. They can be easily extracted from each other. By assembling the rear case 3, the outer parts abutted against each other in the recess 22 are formed. The rib 6 on the case 1 side and the rib 24 on the inner case 9 side are engaged, and the suction port Since the outer periphery of the peripheral wall 10a of the grill 10 is covered, the inner case 9 and the outer case 1 are The suction grill 10 can be securely held and fixed without coming off or wobbling. Ru.

[0007]

[Effect of the idea]

According to the hair dryer of the present invention, by assembling the rear case 3, the outer case Even though the inner case 9 was inserted into and removed from the case 1, the inner case 9 became unstable. It can be easily and securely held and fixed without wobbling. Also, the rear When performing a pressure test or air blow test in a temporarily assembled state before installing Case 3, please do not The storage unit 2 can be easily disassembled, and its repair work can be performed simply and quickly.

[0008]

【Example】

An embodiment of the hair dryer according to the present invention will be described based on FIGS. 1 to 9. In Figure 1, this consists of an outer case 1, a built-in unit 2, and a rear case 3. Then, the handle 4 is assembled to the outer case 1 and the rear case 3. As shown in FIG. A discharge outlet grille 5 is fixed inside the opening end, and a rib 6 is provided on the upper part of the outer peripheral surface of the rear opening end. Further, a handle holding portion 7 is provided protruding from the lower part of the outer periphery of the rear opening end.

[0009] As shown in FIG. 8, the built-in unit 2 is shorter than the front and back length of the outer case 1, and A cylindrical inner case 9 having an outer diameter slightly smaller than the inner diameter of the rear end of the outer case 1, and a suction It is integrally combined with the entrance grill 10 in advance.

0010 As shown in FIG. 1 and FIG. Two front and rear flanges 11a and 11b are formed on the inside of the front opening end of the inner case 9. The motor holding cylinder 12 is integrally formed concentrically with the outer circumferential surface of the motor holding cylinder 12 and the inner case. A plurality of rectifying blades 13 are integrally formed radially between the inner peripheral surface of the base 9 and the inner circumferential surface of the base 9. Mo A motor 14 is fitted and fixed in the motor holding cylinder 12 so as to protrude forward. A fan 16 is mounted on a shaft 15 protruding from the center of the rear end surface behind and inside the straightening blades 13. It is fixed with a case 9 so that its outer periphery is covered. At the front end of the motor 14 An insulating substrate 19 around which a heater 17 is wound is fixed. Also, the inner case 9 is on the front side. A rib 24 is provided protruding from the upper circumference of the flange 11a, and a rib 24 is provided on the rear side on the outer peripheral surface of the inner case 9. A plurality of slightly raised anti-slip protrusions 20 are provided in the circumferential direction behind the flange 11b. They are protruded at intervals.

[0011] The inlet grill 10 is formed in a crown shape with an open front, and has an elastic peripheral wall 1. A recess 21 corresponding to the anti-slip protrusion 20 is formed on the inner periphery of 0a, and the peripheral wall 10a into the outer periphery of the rear open end of the inner case 9 to a depth where it contacts the flange 11b. As shown in FIGS. 2 and 5, the recess 21 is formed using the elasticity of the peripheral wall 10a. It is engaged with the anti-slip protrusion 20 of the inner case 9. Even in the temporarily assembled state, the suction port If the rill 10 slides backward from the outer circumferential surface of the inner case 9 or the outer circumferential surface of the inner case 9 It is held and fixed without rotating on the top. In addition, as shown in Figure 5, the suction port The grille 10 has a protrusion 27 at the front end of its peripheral wall 10a, and the protrusion 27 is attached to the inner case. to engage with the notch 29 (see FIG. 7) provided in the rear flange 11b of the base 9. Therefore, the suction grille 10 is moved in the circumferential direction on the outer peripheral surface of the inner case 9 in the temporarily assembled state. It more reliably prevents rotation.

0012 In FIG. 5, the rear case 3 is formed into a ring shape, and a recess 2 is formed at the upper part of the inner peripheral surface of the rear case 3. 2, and a handle holding portion 23 is provided at the lower part of the outer peripheral surface. this rear case The part in front of the recess 22 in No. 3 is formed a little thinner than other parts to make it easier to elastically deform. ing.

[0013] These three parts, outer case 1, built-in unit 2, and rear case 3, are arranged in the following order. Can be assembled. First, the built-in unit 2 is temporarily assembled into the outer case 1. When viewing, insert the built-in unit 2 into the outer case 1 from the rear as shown in Figure 8. By inserting the heater 17 facing forward, the outer case 1 is inserted as shown in FIG. The front part is pulled out from the flange 11a on the outer peripheral surface of the inner case 9 inside the rear open end of the inner case 9. It can be easily inserted and installed, and the rib 6 on the outer case 1 side is connected to the rib 6 on the inner case 9 side. The ribs 24 are abutted against each other. In addition, as shown in FIG. 3, the lower part of the outer peripheral surface of the inner case 9 engaging the protrusion 25 provided in the notch 30 provided in the lower circumferential surface of the outer case 1; This prevents the inner case 9 from rotating relative to the outer case 1.

[0014] When the built-in unit 2 is temporarily assembled in the outer case 1 in this way, the motor 14 is The fan 16 rotates when driven, sucking air through the intake grille 10 and passing it through the rectifying blades. After being heated by the heater 17 while rectifying the air at 13, it is discharged from the outlet grille 5. The conditions are the same as the actual assembled condition. Therefore, its temporary assembly Pressure tests and air blow tests can be performed even when the At this time, the inlet grill 10 is connected to the peripheral wall 1 The hole 21 of 0a is engaged with the anti-slip protrusion 20 of the inner case 9 to prevent it from slipping. Therefore, it is advantageous that it will not accidentally slip out during the ventilation inspection. Also, the inspection is out. In the case of The recess 21 comes off the anti-slip protrusion 20 through the elastic deformation near the recess 21 of a, and the inner case is removed. The inner case 9 can be removed from the outer case 1 to the rear. Since it can be easily pulled out, it is easy to redo any imperfections in the built-in unit 2. It's easy to do.

[0015] Next, as shown in FIG. 9, the flange 11b on the outer peripheral surface of the rear opening end of the outer case 1 is From the rear of this to the outer peripheral surface of the peripheral wall 10a of the inlet grille 10 By fitting the case 3, the elasticity of the part in front of the recess 22 of the rear case 3 is reduced. Through deformation, the rib 6 on the outer case 1 side and the inner case abut each other in the recess 22. The rib 24 on the base 9 side is engaged. Due to this engagement, the inner case 9 of the built-in unit 2 is securely fixed without slipping out from the outer case 1 or wobbling. Ru. In addition, by fitting the rear case 3, the temporarily fixed suction port grill 10 can also be attached to the inner case. 9 so that it does not come off from the outer periphery, and the hand on the rear case 3 side. The handle holder 23 fits into the handle holder 7 on the outer case 1 side. At this time, As shown in FIG. 1, at the lower circumference 3a of the front end of the rear case 3 When the protrusion 25 of the inner case 9 is pressed from behind, the inner case 9 may wobble or chatter. It is possible to more reliably prevent damage.

[0016] Finally, as shown in Figures 1 and 2, the handle holder 7 on the outer case 1 side and the rear Secure the upper end of the handle 4 to the handle holder 23 on the case 3 side with the screw 26. to be determined. As shown in FIGS. 3 and 6, the handle 4 has left and right half cases 4a, 4b, butt them together so that their upper ends sandwich the handle holding parts 7 and 23. At the same time, the boss 31 at the upper end of one half case 4a is attached to the handle holding part 7. ・Boss 3 at the upper end of the other half case 4b by inserting it into each of the shaft holes 32 and 33 of 23 4, and the screws 26 are screwed into both bosses 31 and 34 to remove the handle. The handle 4 is rotatably connected to the dollar holding part 7, 23 around a screw 26. . One side of the handle holding part 23 of the rear case 3 and the upper end of the half case 4b There is a position between the joint surfaces in which the handle 4 protrudes downward from the outer case 1 (solid line in Figure 1). state) and the almost parallel folded state (state shown by the two-dot chain line in Figure 1). It incorporates a moderation piece 35 for this purpose. The moderation piece 35 is shown in FIG. It is molded into a ring shape from a plastic material, and has a rotation prevention protrusion 36 on its inner periphery and an outer ring. Each has a moderation projection 37 on the periphery, and a rotation stop projection 36 as shown in FIGS. 4 and 6. is a recess on the outer periphery of the boss 39 provided around the shaft hole 33 on one side of the handle holding part 23. 40 in a non-rotating manner, and as the handle 4 rotates, the moderating protrusion 3 7 is removably engaged with the recess 42 of the circumferential groove 41 provided on the upper end side of the half case 4b. I try to let them do it.

[0017] By tightening the screw 26 to the handle 4, the force in the direction of arrow A in Fig. 1 is applied to the rear part. Even when joined to the case 3, this rear case 3 engages the recess 22 with the rib 6 of the outer case 1. Since they are aligned, there is no wobbling or rattling. Therefore, this The fixing state of the inner case 9 to the outer case 1 by the rear case 3 and the inner case This means that the fixed state of the suction grill 10 relative to the suction grill 9 can be reliably maintained. .

[0018] In addition, as shown in FIG. 1, the handle 4 is equipped with a motor 14 and a heater 17 to control it. Switch 43 to switch between cold air, mildly warm air, and strong hot air, and its operation knob 44, a switch 45 for rapid cooling switching, and an operation knob 46 for this. . As shown in FIG. 2, the operation knob 46 of the switch 45 for rapid cooling is A pressing piece 49 for pressing the retractable pin plunger 47 of No. 5 is integrally formed, The pressing piece 49 is connected to the pin plunger 47 and the inner wall 50 of the handle 4 opposite thereto. It can be slid freely between the two. facing the pin plunger 47 of the pressing piece 49 A deep recess 51 and a shallow recess 53 connected to the deep recess 51 via a taper 52 are provided at the location where the When the operation knob 46 is in the off position, the deep recess 51 becomes a pin plunger. 47 and maintains its protruding state, and the operating knob 46 slides in the direction of the on position. As it rides, the taper 52 slides on the pin plunger 47 and reaches the on position. The shallow recess 53 presses and immerses the pin plunger 47 to switch to cold air. We are trying to maintain this state. Drop the pin plunger 47 into the shallow recess 53. By engaging the operating knob 46 inadvertently from the on position, the taper 5 2 can be prevented from returning to the original off position.

[Brief explanation of drawings]

FIG. 1 is a longitudinal side view.

FIG. 2 is a sectional view taken along line BB in FIG. 1.

FIG. 3 is a sectional view taken along the line CC in FIG. 1;

FIG. 4 is a sectional view taken along line DD in FIG. 3;

FIG. 5 is an exploded perspective view of the main body.

FIG. 6 is an exploded perspective view of the handle.

FIG. 7 is a perspective view of the inner case.

FIG. 8 is a side view showing a state before the built-in unit is assembled to the outer case.

FIG. 9 is a side view showing a state before the rear case is assembled to the outer case.

FIG. 10 is a longitudinal sectional view of a conventional hair dryer.

[Explanation of symbols]

1 Outer case 2 Built-in unit 3 Rear case 6 ribs 9 Inner case 10 Inlet grill 14 Motor 16 fans 17 Heater 22 Recess 24 Rib

Claims (1)

[Scope of utility model registration request] [Claim 1] Consisting of a cylindrical outer case 1 that is long in the front-rear direction, a built-in unit 2, and a rear case 3, the built-in unit 2 is formed in a cylindrical shape and has a rib 24 on its outer peripheral surface. , an inner case 9 whose front part from the rib 24 is removably inserted into the rear open end of the outer case 1; The suction grille 10 is removably fitted to the rear of the rib 24 of the motor 14, the motor 14 and the fan 16 are built into the inner case 9, and the heater 17 is attached to the front of the motor 14. The outer case 1 and the inner case 9 have a rib 6 protruding from a part of the outer peripheral surface of the rear opening end of the outer case 1 and the rib 24 of the inner case 9 butt against each other. The rear case 3 is formed into a ring shape and has a recess 22 on a part of its inner circumference.
The outer periphery of the rear opening end of the outer case 1 and the inlet grille 10
The recess 2 is fitted into the outer periphery of the peripheral wall 10a from the rear of the peripheral wall 10a.
2. A hair dryer characterized in that the ribs 6 and 24 are engaged within the hair dryer.