JP2008200153A - Hair dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent molding distortion such as a drop on the outer surface of a turning base end area by eliminating the concentration of thick structures constituting a moderation structure in the turning base end area of a handle. <P>SOLUTION: The moderation structure is provided between a handle connection part 2 of a body case 1 and one handle case 3a constituting the handle 3. The moderation structure is composed of a moderation ring 23 housed in a moderation recess 22 of the handle connection part 2; first engagement bodies 24 provided at two locations on the outer peripheral surface of the moderation ring 23; second engagement bodies 25 provided at four locations on the inner surface of the moderation recess 22; and a first connection part 26 and a second connection part 27 provided in the moderation ring 23 and the handle case 3a, etc. When the moderation ring 23 turns together with the handle case 3a, the first engagement bodies 24 climb over the second engagement bodies 25 while elastically deforming the moderation ring 23 inward from the ring, so that the handle 3 can be located and held at the use position or at the folded position. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hair dryer having a handle that can be folded with respect to a main body case.

  For example, in Patent Document 1, a handle connecting portion is provided at one side lower part of the main body case, and a handle case divided into left and right is assembled to the handle connecting portion to support the handle so that it can be folded and rotated. A moderation structure for restricting the rotation of the handle in each position is provided between the handle connecting portion and one handle case. An electric shaver having a similar moderation structure can also be seen in Patent Document 2.

  The moderation structure in Patent Document 1 is formed by a moderation ring that is assembled to the boss of the handle connecting portion so as not to be relatively rotatable, and four engagement protrusions that are formed on the inner surface of the handle case that covers the moderation ring. Two moderation protrusions that engage with the engagement protrusions are formed on the circumferential surface of the moderation ring. When the handle is folded and rotated, the moderation protrusions overcome the engagement protrusions while elastically deforming the moderation ring. It has become. In order to reinforce the structural strength of the portion where the engaging protrusion is provided, a reinforcing ring is formed inside the handle case, and four engaging protrusions are formed on the inner surface thereof.

  Unlike the moderation structure described above, Patent Document 3 discloses a moderation structure constituted by a cylindrical moderation body, a spring that presses and biases the moderation body toward the inner wall of the handle case, and a handle case. . There, two moderation protrusions are formed to bulge laterally on the joint surface of the moderation body with the handle case, and four sets of engaging recesses are formed in the handle case inner wall. The cylindrical moderation body seems to be engaged and held so as not to rotate but to be slidable in the axial direction by a bearing portion provided at the handle connecting portion of the main body case.

Utility Model Registration No. 2516428 (paragraph number 0016, FIG. 6) Japanese Utility Model Publication No. 61-134705 microfilm (page 6, line 14 to page 7, line 6, Fig. 1) Japanese Patent Application Laid-Open No. 58-112508 (2nd page, upper right column, FIG. 4)

  In the hair dryer as described above, a large moment tends to act on the rotation base end portion of the handle. In addition, in order to prevent the handle from being folded by an external force during use, the moderation structure is made sturdy so that the handle can be reliably restricted from rotating. For this reason, in the hair dryer disclosed in Patent Document 1, a reinforcing ring, an engagement protrusion, an annular wall, and the like are provided on the inner surface of the rotation base end portion of the handle case, compared to the case where most of the handle is configured with a thin outer wall. Since the amount of molding resin increases by that amount, molding distortion (sink) is likely to occur on the outer surface of the rotating base end portion. In particular, when the handle case is formed of a flame-retardant plastic material, there is a problem in appearance design because molding distortion is prominent at a portion where a thick portion such as a reinforcing ring is unevenly distributed.

  Inside the handle is a switch that controls the energization of the motor and heater, an input / output lead wire derived from the switch, or a control board. A switch knob is incorporated. Of course, a moderation structure is also incorporated. Therefore, when assembling the handle to the main body case, assemble a moderation ring at the handle coupling part, and assemble a switch, lead wire, switch knob, etc. inside one handle case temporarily assembled at the handle coupling part. Finally, the other handle case is joined to the pre-assembled handle case, and both are fastened with screws.

  However, the switch, switch knob, and lead wire temporarily assembled in the handle case are easy to move due to the elastic repulsive force of the lead wire, or easily float away from the inner surface of the case. For this reason, the handle case is held in a state where each of the previous members is held in an appropriate assembly posture, and the handle case and the moderation ring are aligned, that is, all the temporarily assembled parts are held in the proper positions. As a result, the assembly of the handle becomes complicated and the assembly takes a lot of time and effort.

  The object of the present invention is to eliminate the concentration of the thick structure for constituting the moderation structure on the rotation base end portion of the handle, even when the handle case is formed of a flame-retardant plastic material, An object of the present invention is to provide a hair dryer capable of preventing molding distortion such as sink marks from occurring on the outer surface of the rotating base end portion. The object of the present invention is to easily assemble the other handle case with respect to the handle case in which electrical components such as switches and switch knobs are incorporated, and therefore the labor required for assembling the handle to the main body case is significantly reduced. The object is to provide a hair dryer that can.

  The hair dryer of the present invention uses a main body case 1 that houses a blower fan 5, a heater unit 8 and the like, and a handle 3 that is foldably connected to a handle connecting portion 2 provided on one side of the lower surface of the main body case 1. A moderation structure for restricting the rotation of the handle 3 is provided at each of the position and the folding position. The handle 3 is composed of a pair of handle cases 3a and 3b that are joined and fixed with the handle connecting portion 2 interposed therebetween. The moderation structure is provided between the moderation body 23 disposed between the adjacent facing surfaces of the one handle case 3a and the handle connection portion 2, and between the moderation body 23 and the handle connection portion 2, and engages with each other. A first engagement body 24 and a second engagement body 25 are provided. The moderation body 23 is engaged with the one handle case 3a and can rotate together with the handle 3. Thus, the handle connecting portion 2 is characterized in that the second engagement body 25 that engages with the first engagement body 24 provided on the moderation body 23 is provided.

  Specifically, as shown in FIG. 1, a moderation recess 22 that accommodates the moderation ring 23 is provided in the handle connecting portion 2, the first engagement body 24 is provided on the outer peripheral surface of the moderation ring 23, and the inner peripheral surface of the moderation recess 22. A second engagement body 25 that restricts the rotation of the first engagement body 24 is provided. Thus, when the moderation ring 23 rotates together with the handle case 3a, the first engagement body 24 gets over the second engagement body 25 while elastically deforming the moderation ring 23 toward the inner surface of the ring, and the handle 3 is used. The position and the folding position can be held.

  Further, as shown in FIG. 7, the moderation ring 23 and the moderation ring 23 are moved toward the handle connection portion 2 along the rotation center axis of the handle 3 between the handle connection portion 2 and one handle case 3 a. An urging spring 42 is disposed. A first engagement body 24 is engaged with a surface of the moderation ring 23 adjacent to the handle coupling portion 2, and a second engagement body 25 is engaged with the surface of the handle coupling portion 2 adjacent to the moderation ring 23 and engaged with the first engagement body 24. Are provided respectively. Thus, when the moderation ring 23 rotates together with the handle case 3a, the first engagement body 24 moves over the second engagement body 25 while moving the moderation ring 23 against the urging force of the spring 42. The handle 3 can be held in the use position and the folded position.

  As shown in FIG. 7, a first connecting portion 26 is formed on the outer end surface of the moderation ring 23 accommodated in the moderation recess 22, and the first connecting portion 26 is formed on the engaging boss 34 provided on the inner surface of the handle case 3a. A second connecting portion 27 that engages with the second connecting portion 27 is formed.

  A screw boss 30 that is pivotally supported by the handle connecting portion 2 is provided inside the moderation ring 23 and one handle case 3a adjacent to the ring 23, and the screw boss 30 is provided inside the other handle case 3b. A fastening boss 31 for the screw 32 to be screwed in is provided. A second connecting portion 27 for engaging the moderation ring 23 is provided on the screw boss 30 side.

  A first connecting portion 26 is projected on the inner peripheral surface of the moderation ring 23, and a second connecting portion 27 that engages with the first connecting portion 26 is formed on the peripheral surface of the screw boss 30.

  In the present invention, the moderation body 23 is disposed between the one handle case 3a and the handle connection portion 2, and the first engagement body 24 and the first engagement body 24 that engage with each other are disposed between the moderation body 23 and the handle connection portion 2. Two engaging bodies 25 were provided. Further, the moderator 23 can be rotated together with the handle 3. In addition, a second engagement body 25 that engages with the first engagement body 24 is provided in the handle connecting portion 2 so that a thick structure such as an engagement body or a reinforcement ring that is conventionally provided on the inner surface of the handle case can be omitted. I made it. Therefore, according to the hair dryer of the present invention, it is possible to simplify the internal structure of the rotating base end portion of the handle case 3a by providing all of the thickness structure related to the moderation structure on the handle connecting portion 2 side. When molding the handle case 3a, it is possible to eliminate the occurrence of molding distortion such as sink marks on the outer surface of the rotation base end portion. In particular, even when the handle case 3a is molded from a flame-retardant plastic material, it is possible to eliminate the occurrence of sink marks on the outer surface of the rotating base end portion and improve the appearance impression.

  The moderation ring 23 is accommodated in the moderation recess 22 provided in the handle connecting portion 2, the first engagement body 24 is provided on the moderation ring 23 side, and the second engagement body 25 is provided on the inner peripheral surface of the moderation recess 22. According to the structure, the thickness of the moderation structure in the width direction can be reduced by the amount that accommodates the moderation ring 23 in the moderation recess 22, and the handle 3 can be prevented from becoming thick, and the handle 3 can be made compact accordingly. Can be The moderation ring 23 is rotated along with the handle case 3a so that the first engagement body 24 can move over the second engagement body 25 inside the moderation recess 22 while elastically deforming the ring body 23a. Compared to the conventional moderation structure in which the connecting portion is non-rotatably engaged and attached, the degree of freedom of the moderation ring 24 when elastically deforming is increased, and a smooth moderation operation can be exhibited accordingly.

  A moderation ring 23 and a spring 42 are disposed between the handle coupling portion 2 and the handle case 3a, and when the handle 3 is raised and lowered, the moderation ring 23 is resisted against the biasing force of the spring 42 from the handle coupling portion 2. According to the moderation structure in which the first engagement body 24 gets over the second engagement body 25 while moving in the away direction, and the handle 3 can be held in the use position and the folded position, the contact / separation operation of the moderation ring 23 As a result, the first engagement body 24 can get over the second engagement body 25 and hold the position of the handle 3, so that the handle 3 can be reliably held at the use position and the folded position while the handle 3 is raised and lowered more easily. By changing the spring pressure of the spring 42 to be used to a larger or smaller value, the operation resistance when the handle 3 is raised and lowered can be freely changed.

  When the first connecting portion 26 is formed on the outer end surface of the moderation ring 23 and the second connecting portion 27 is formed on the engaging boss 34 on the inner surface of the handle case 3a, the first connecting portion 26 and the second connecting portion 27 are engaged. The moderation ring 23 can be pre-assembled by assembling the handle case 3a to the handle coupling portion 2 in the connected state, so that when the electrical components such as the switch 12a are assembled to the previous handle case 3a and the lead wire is shaped, or remains. When the handle case 3b is assembled, the attitude of the pre-assembled moderation ring 23 can be prevented from changing, and the handle case 3b can be easily assembled to the handle connecting portion 2 without paying attention to the moderation ring 23.

  A screw boss 30 that is pivotally supported by the handle connecting portion 2 is provided inside the handle case 3a, a second connecting portion 27 that engages the moderation ring 23 is provided on the screw boss 30 side, and the moderation ring 23 is attached to the handle case 3a. The moderation ring 23 is inserted into and engaged with the screw boss 30 and the screw boss 30 is inserted into the handle connecting portion 2 and temporarily assembled in this state. Assembling of the handle 3 can be completed simply by forming the electric component on one handle case 3a and simply covering the other handle case 3b. Therefore, as compared with a hair dryer having a conventional moderation structure, The handle 3 including the product can be easily assembled. Further, when assembling the handle case 3b, it is possible to assemble each member while confirming that the moderation ring 23 is incorporated, so that it is possible to prevent forgetting to assemble the moderation ring 23 well. Furthermore, the posture of the pre-assembled moderation ring 23 does not change when the electrical components such as the switch 12a and the remaining handle case 3b are assembled.

  If the first connecting portion 26 protrudes from the inner peripheral surface of the moderation ring 23 and the second connecting portion 27 engaging with the first connecting portion 26 is formed on the peripheral surface of the screw boss 30, Since the engagement length between the connecting portion 26 and the second connecting portion 27 can be set as large as necessary, the first connecting portion 26 and the second connecting portion 27 are damaged due to an external force such as a drop impact. It can prevent well. Even if the first connecting portion 26 and the second connecting portion 27 are partially lost, the moderation ring 23 is rotationally displaced along with the raising and lowering operation of the handle 3 to move the handle 3 to the use position and the folding position. The position can be maintained.

(Example) FIG. 1 thru | or FIG. 11 shows the Example of the hair dryer which concerns on this invention. In FIG. 2, the hair dryer has a horizontally long main body case 1 and a handle 3 that is foldably connected to a handle connecting portion 2 provided on one side of the lower surface thereof. It includes a blower fan 5 that is generated, a motor 6 for driving the fan, a fan case 7 that houses the blower fan 5 and the motor 6, a heater unit 8 that heats the drying air, an ion generator 9, and the like. It is.

  On the front surface of the handle 3, a switch knob 12 serving as an air volume control switch and a heater switch is provided. The switch knob 12 is slid upward from the off position at the lower end to switch the switch 12a in the order of cold air, low-temperature air, and high-temperature air, thereby switching the rotational speed of the motor 6 between large and small. The temperature of the unit 8 can be controlled. In addition, when the energization to the motor 6 is in the on state, the ion generator 9 can be driven simultaneously.

  In FIG. 3, the main body case 1 is formed in a cylindrical shape by joining left and right case bodies 1 a and 1 b formed of a plastic material such as ABS resin or polycarbonate, and the left and right case bodies 1 a. A fan case 7 is fastened and fixed with screws 14 to one side of 1b. The fan case 7 is integrally provided with an outer air guide tube 7a whose front and rear surfaces are open, a central motor holder 7b whose only front surface is open, and a rectifying blade 7c provided therebetween. A flange 7d projects from the upper and lower surfaces of the air guide tube 7a, a fastening boss 7e for the screw 14 is integrally formed at the center of the wall of the flange 7d, and the suction grill 17 is assembled to the upper and lower ends of both flanges 7d. A protrusion 7f is provided in a rib shape.

  A motor 6 is fixed to the motor holder 7b, and an axial flow type blower fan 5 is fixed to an output shaft protruding from the rear surface of the motor 6. The blower fan 5 is rotationally driven in one direction, and pressurizes and feeds the air sucked from the suction port 15 at the rear end of the main body case. The pressurized dry air is blown out from the outlet 16 at the front end of the main body case via the heater unit 8 and heated while passing through the heater unit 8. The suction port 15 is covered with a suction port grille 17 and the blower outlet 16 is covered with a blower outlet grill 18.

  As shown in FIGS. 3 to 5, the inlet grille 17 is formed by punching metal into a partially spherical shape and punching it into a petal shape. is there. The fan case 7 is assembled to one case body 1a with the retaining holes 17b formed on the retaining arm 17a being hooked on the upper and lower protrusions 7f of the air guide tube 7a, and the previous protrusion 7f is attached to the case body 1a. The fan case 7 can be fixed to the case body 1a by screwing the screw 14 inserted through the fastening boss 7e into the screw boss of the case body 1a while being fitted in the engagement recess 19 provided. It can be controlled to move back and forth and left and right. Finally, the other case body 1b is put on the previous case body 1a, and both case bodies 1a and 1b are joined and fixed.

  As shown in FIG. 6, the handle 3 is composed of a pair of handle cases 3 a and 3 b that are joined and fixed with the handle connecting portion 2 interposed therebetween, and uses a space constituted by both handle cases 3 a and 3 b. The switch 12a, the input lead 20a, the output lead 20b, the LED (not shown), the upper end of the code armor 21, and the like are accommodated. The handle 3 is connected to the handle connecting portion 2 so as to be foldable. In order to hold the handle 3 in each of the use position shown by a solid line in FIG. 2 and the fold position shown by an imaginary line in FIG. A moderation structure is provided between the handle case 3 a and the handle connecting portion 2.

  In FIG. 7, the moderation structure is provided between the moderation recess 22 formed in the handle coupling portion 2, the moderation ring (moderation body) 23 accommodated in the moderation recess 22, and the moderation recess 22 and the moderation ring 23. The first engagement body 24 and the second engagement body 25 that are engaged with each other, and provided between the one handle case 3a and the moderation ring 23, are engaged with each other to engage the moderation ring 23 with the handle case 3a. It comprises an engaging rib (first connecting portion) 26 to be rotated and an engaging groove (second connecting portion) 27. The second engagement body (engagement protrusion) 25 is composed of rib-shaped protrusions having a semicircular cross-section that are formed to bulge at four locations on the inner peripheral surface of the moderation recess 22, and two of them are opposed to each other as a set. .

  The moderation ring 23 has a cylindrical ring body 23a that can be elastically deformed, and a first engagement body (moderation protrusion) 24 having a semicircular cross section is formed integrally and bulged at two locations on the outer peripheral surface thereof. It consists of a plastic molded product in which a pair of L-shaped engagement ribs 26 are integrally formed from the inner peripheral surface to the outer end surface of 23a. As shown in FIG. 8, the ring main body 23a and the first engagement body 24 of the moderation ring 23 constituting the moderation structure are rotated together with the handle case 3a in a state of being in contact with a rib 35 described later. Therefore, when the first engagement body 24 gets over the second engagement body 25 while elastically deforming the ring main body 23a, the frictional resistance generated between the first engagement body 24 and the rib 35 is minimized, and the moderation resistance is reduced. Can be reduced. In order to prevent deterioration of the ring body 23a due to elastic deformation, the moderation ring 23 is made of, for example, polyacetal. The first engagement body 24 and the engagement rib 26 are arranged so that a line connecting the centers of the pair of first engagement bodies 24 and a line connecting the centers of the pair of engagement ribs 26 are orthogonal to each other.

  As shown in FIG. 6, both handle cases 3a and 3b are each formed of a ship-shaped plastic molded product made of flame retardant ABS resin, and screw bosses 30 are integrally formed on the upper and lower surfaces of one handle case 3a. Fastening bosses 31 corresponding to the screw bosses 30 are integrally formed on the upper and lower surfaces of the other handle case 3a. By joining both the handle cases 3a and 3b to the handle connecting portion 2, connecting the screw boss 30 and the fastening boss 31, and further screwing a screw (screw) 32 inserted from the fastening boss 31 side into the screw boss 30, Both handle cases 3a and 3b can be integrated so as not to be separated.

  As shown in FIG. 7, a cylindrical wall 33 that is joined to the side end of the moderation recess 22 protrudes around the base end of the upper screw boss 30, and engagement bosses 34 are formed on the front and rear sides thereof. . The engagement bosses 34 are formed with engagement grooves 27 that engage with the side ends of the previous engagement ribs 26. A pair of ribs 35 is formed between the screw boss 30 and the cylindrical wall 33 in a state orthogonal to a line connecting the pair of engagement grooves 27. A switch window 38 for exposing the switch knob 12 is cut out on the front surfaces of both handle cases 3a (see FIG. 6). The upper screw boss 30 also serves as a central axis of rotation of the handle 3, and the handle 3 can be pivoted up and down by pivotally supporting the screw boss 30 with a bearing boss 39 provided on the handle connecting portion 2. The bearing boss 39 is formed so as to be continuous with the inner depth of the moderation recess 22.

  Next, a procedure for assembling the handle 3 to the main body case 1 will be described. When the assembly of the main body case 1 is completed, as shown in FIG. 6, the switch 12 a, its input / output leads 20 a and 20 b, and the electrical components such as the cord armor 21 are exposed from the lower end opening of the handle connecting portion 2. . First, as shown in FIG. 11, the engagement rib 26 of the moderation ring 23 is fitted into the engagement groove 27 of one handle case 3 a, and the moderation ring 23 is connected to the handle 3 so as to be rotatable together. Next, in a state where the handle case 3a is placed on the work table, the bearing boss 39 is inserted into and engaged with the screw boss 30, and at the same time, the moderation ring 23 is fitted into the moderation recess 22 so as to be in a lying position. And the previous handle case 3a are integrated.

  In the above state, the switch 12a, the input / output leads 20a and 20b, the cord armor 21 and the like are assembled at predetermined positions in a predetermined posture while shaping the lead wires. Thereafter, the switch knob 12 is assembled to the switch window 38 and connected to the switching piece of the switch 12a. Finally, the other handle case 3b is covered, and the protruding end of the screw boss 30 is fitted and joined to the fastening boss 31. Both bosses 30 and 31 are fastened with screws (screws) 32. Both handle cases 3a and 3b are not only fastened with screws 32 at the top and bottom, but are also integrated via a plurality of elastic engagement claws provided on the joint surfaces of both handle cases 3a and 3b.

  As described above, when the moderation recess 22 is provided in the handle connecting portion 2 and the moderation ring 23 is accommodated therein, it is necessary to provide a reinforcing ring and an engagement projection on the inner surface of the handle case 3a unlike the conventional moderation structure. Since the thick structure is concentrated on the handle case 3a and the internal structure of the pivot base end can be simplified, the pivot base end portion is formed when the handle cases 3a and 3b are molded. This eliminates the occurrence of molding distortion such as sink marks on the outer surface of the glass, and improves the appearance impression. By forming both handle cases 3a and 3b from a flame-retardant plastic material, it is possible to reliably prevent the handle 3 from igniting even if a short circuit accident occurs around the switch 12a.

  By the way, since the flame retardant plastic material is weak in strength, the handle case is formed of a flame retardant plastic material, and as seen in the conventional moderation structure, when the moderation structure engagement body is provided inside the handle case, There is a possibility that the engaging body is scraped by the moderation ring made of polyacetal and wears out early, and the moderation function is impaired. However, as described above, when a moderation structure is provided on the handle connecting portion 2 side and the moderation ring 23 is rotated together with the handle case 3a, it is not necessary to form a worn portion on the handle case 3a side. Therefore, there is no problem even if the handle case 3a is formed of a flame-retardant plastic material.

  The relationship between the handle position and the moderation structure is as follows. For ease of understanding, the phase positions of the first engagement body 24, the second engagement body 25, and the engagement rib 26 will be described by replacing them with the time positions on the dial of the timepiece. As shown in FIG. 1, when the handle 3 is in a use position where it stands up with respect to the main body case 1, the phase positions of the upper and lower first engagement bodies 24 are set to 12 o'clock and 6 o'clock, and the phase positions of the respective second engagement bodies 25 Are 1 o'clock and 2 o'clock on the upper side, and 7 o'clock and 8 o'clock on the lower side. Note that the handle 3 in the use position is received by a stopper (not shown) provided in the handle connecting portion 2 and therefore cannot be rotated counterclockwise beyond the use position.

  When the handle 3 is folded in the clockwise direction from the use position toward the main body case 1, the moderation ring 23 accompanies the handle 3 and rotates in the clockwise direction. The ring main body 23a is elastically deformed toward the inner surface of the ring while riding on the second engagement body 25 at the 7 o'clock position. At this time, the engagement rib 26 in the engagement groove 27 is restricted from moving in the rotational direction, but is fitted so as to be slightly movable in the radial direction by the gap g (see FIG. 9). Yes. Therefore, when the ring main body 23a is elastically deformed, the engagement rib 26 can be elastically deformed so as to expand in the radial direction together with the ring main body 23a, and the deformation resistance of the ring main body 23a and the second engagement body 25 is reduced accordingly. The climbing operation of the moderation ring 23 can be turned on.

  When the moderation protrusion 24 gets over the top of the second engagement body 25, the ring main body 23a returns to a circular shape by its own elasticity. Between the second engagement bodies 25 at the 1 o'clock and 2 o'clock positions, and at the 7 o'clock and 8 o'clock positions, the first engagement body 24 has a margin of free play, but there is no play to the extent that the handle 3 Can be held at an intermediate position. When the handle 3 is further tilted, the first engaging bodies 24 come into contact with the second engaging bodies 25 at the 2 o'clock and 8 o'clock positions, respectively, and the ring body 23a is elastically deformed toward the inner surface of the ring as before. It rides on the second engagement body 25 while making it go.

  Finally, the first engagement body 24 gets over the top of the second engagement body 25 as shown in FIG. 10, and the ring main body 23a returns to a circular shape by its own elasticity, so that it is at the 2 o'clock and 8 o'clock positions. The second engagement body 25 is adjacently engaged and held in the folded position. At this time, since a part of the handle 3 is received by the lower surface of the main body case 1, the handle 3 cannot be rotated any further. When the handle 3 is raised, the moderation ring 23 accompanies the handle 3 rotating in the counterclockwise direction and gets over each second engagement body 25 in the same manner as before.

  12 and 13 show another embodiment of the moderation structure. There, a moderation ring (moderation body) 23 is arranged between the side end surface of the handle coupling portion 2 and one handle case 3a, and the moderation ring 23 is moved toward the handle coupling portion 2 by a compression coil spring 42. Energize. The moderation ring 23 is provided with a pair of hemispherical first engagement bodies (moderation protrusions) 24 on one side surface of the ring main body 23a, and an engagement pin (first connection portion) 26 integrally provided at a position facing the inner surface of the ring. It consists of a plastic molded product. Three second engagement bodies (engagement recesses) 25 that allow the first engagement body 24 to drop and engage are formed on the surface of the handle coupling portion 2 that faces the moderation ring 23. The moderation ring 23 is prevented from rotating when the previous engagement pin 26 engages with an engagement groove (second connecting portion) 27 provided in the proximal end boss 30a of the screw boss 30, and rotates together with the handle case 3a. it can. The proximal boss 30 a is formed to have a larger diameter than the screw boss 30. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted. The same applies to the following embodiments.

  When the handle 3 is in the use position, the upper and lower first engaging bodies 24 are engaged with the second engaging body 25 at the 12 o'clock and 6 o'clock positions by dropping like the moderation ring 23 described above ( (See FIG. 13). From this state, when the handle 3 is tilted to the folding position, the upper and lower first engaging bodies 24 are subjected to the second engagement by the reaction force received from the second engaging body 25 at the 12 o'clock and 6 o'clock positions. The union 25 is gradually pulled out, and the moderation ring 23 is moved away from the handle coupling portion 2 against the urging force of the spring 42. As a result, the first engagement body 24 comes out (overrides) from the second engagement body 25 and falls into the second engagement body 25 at the 1 o'clock and 7 o'clock positions, so that the handle 3 is positioned between the use position and the folding position. Hold the position.

  When the handle 3 is further tilted down, the first engagement body 24 comes out of the second engagement body 25 at the 1 o'clock and 7 o'clock positions in the same manner as before, and eventually the second engagement body 24 at the 2 o'clock and 8 o'clock positions. The handle 3 falls into the engagement body 25 and holds the handle 3 in the folded position. When the handle 3 is erected from the folding position, the moderation ring 23 accompanies the handle 3 and rotates in the counterclockwise direction. Hold in position and use position. The second engagement body 25 in this embodiment can be formed by a rib-shaped protrusion having a semicircular cross section, as in the previous embodiment. In this case, the positions of 1 o'clock and 2 o'clock, and 7 It is preferable to provide rib-like protrusions only at the hour and 8 o'clock positions.

  14 and 15 show yet another embodiment of the moderation structure. The moderation structure of this embodiment is basically the same as the moderation structure of the embodiment described with reference to FIGS. 1 to 11, but an engagement rib (first connecting portion) 26 provided on the inner surface of the moderation ring 23 is provided. The difference is that the moderation ring 23 can be rotated together with one handle case 3a by engaging with an engagement groove (second connecting portion) 27 provided in the base end boss 30a of the screw boss 30. Further, a dust-proof cylindrical wall 44 concentric with the cylindrical wall 33 is provided on the inner surfaces of both the handle cases 3a and 3b, and the opening end thereof is fitted into a circular groove 45 formed in the handle connecting portion 2 in a recessed manner. .

  FIG. 16 shows another embodiment of the first engagement body 24 and the second engagement body 25. In FIG. 16A, the first engagement body (moderation recess) 24 is formed by a concave groove having a partially arcuate cross section, and the second engagement body (engagement protrusion) 25 is a rib-like protrusion having a partially arcuate cross section. Formed. In this case, in order to hold the handle 3 at each of the use position and the folded position, the second engagement bodies 25 are provided at two locations on the inner surface facing the moderation recess 22 and are provided at four locations on the peripheral surface of the ring body 23a. A first engagement body 24 was formed. In addition, a pair of groove-shaped first coupling portions 26 are formed on the inner surface of the ring body 23 a, and a rib-shaped second coupling portion 27 that engages with the first coupling body 26 is formed on the proximal boss 30 a of the screw boss 30. did.

  In FIG. 16B, contrary to the above-described another embodiment, the first engagement body (moderation protrusion) 24 is formed by a rib-shaped protrusion having a partially arcuate cross section, and the second engagement body (engagement recess) 25. Was formed with a concave groove having a partially arcuate cross section. In this case, the second engagement body 25 was provided at four locations on the inner peripheral surface of the moderation recess 22, and the first engagement body 24 was formed at two locations on the opposing peripheral surface of the ring body 23a. In FIG. 16C, partial arc-shaped second engagement bodies (engagement protrusions) 25 whose both ends are rounded are provided at two locations on the inner surface of the moderation recess 22. The second engagement body 25 in this case can be formed by continuing the pair of second engagement bodies 25 and 25 described in FIG. 1 in the circumferential direction.

  FIG. 17 shows another embodiment of the moderation ring 23. Here, a pair of engaging ribs (first connecting portions) 26 are integrally formed only on the outer end surface of the ring body 23a, and the rib portion along the inner peripheral surface of the ring body 23a is omitted in FIG. As described above, the engaging rib 26 can be constituted only by a protrusion protruding at least on the outer end face of the ring main body 23a.

  FIG. 18 shows another embodiment of the connecting structure of the moderation ring 23 and the handle case 3a. There, a square hole-shaped first connecting portion 26 surrounded by a groove frame 26a having a U-shaped cross section is formed on the inner surface of the ring body 23a, and the engaging boss 34 is engaged with the first connecting portion 26. A square rib-shaped second connecting portion 27 was formed.

  FIG. 19 shows another embodiment of the moderation structure. In this case, a cylindrical wall 45 is provided so as to protrude from one outer surface of the handle connecting portion 2, and the moderation ring 23 is accommodated in the moderation recess 22 surrounded by the cylindrical wall 45. As can be understood from this embodiment, the moderation recess 22 does not have to be formed in the handle coupling portion 2. If necessary, the moderation recess 22 can be formed by a recess formed in the handle connecting portion 2 and a cylindrical wall projecting from the outer surface of the handle connecting portion 2 continuously to the recess.

  Other than the above embodiment, the moderation body 23 is not necessarily formed in a ring shape, and can be formed in a disk shape or a cylindrical shape. The moderation structure can be provided on both side surfaces of the handle connecting portion 2. The first engagement body 24 and the second engagement body 25 do not need to be formed of semicircular or hemispherical protrusions, and can be formed in a mountain shape or a reverse trapezoidal shape with rounded corners. As described above, the first engagement body 24 can be formed by a recess or a groove, and the second engagement body 25 can be formed by a protrusion. In short, as long as the structures engage with each other, the engaging members 24 and 25 may have any of a relationship between a protrusion and a protrusion or a protrusion and a groove. Similarly, the relationship between the first connecting portion 26 and the second connecting portion 27 may be any relationship that can be engaged with each other. The handle cases 3a and 3b do not need to be formed of a flame-retardant plastic material, but can be formed of the same plastic material as the main body case 1. The present invention includes a pet dryer.

It is the BB sectional drawing in FIG. 8, and has the moderation structure for handles. It is a side view of a hair dryer. This is the longitudinal side of the hair dryer. It is a rear view which shows the suction inlet of a hair dryer. It is the sectional view on the AA line in FIG. It is a disassembled front view which decomposes | disassembles a handle case and shows with an electrical component. It is a disassembled perspective view of the moderation structure for handles. It is a vertical front view of a moderation structure. It is CC sectional view taken on the line in FIG. It is sectional drawing of the moderation structure of the state which folded the handle | steering-wheel. It is a disassembled sectional view which shows the assembly structure of a handle case and a main body case. It is a vertical front view which shows another Example of a moderation structure. It is the DD sectional view taken on the line in FIG. It is a vertical front view which shows another Example of a moderation structure. It is the EE sectional view taken on the line in FIG. It is sectional drawing which shows another Example of a 1st engagement body and a 2nd engagement body. It is a perspective view which shows another Example of a moderation ring. It is a disassembled perspective view which shows another Example of the connection structure in a moderation structure. It is a vertical front view which shows another Example of a moderation structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body case 2 Handle connection part 3 Handle 3a * 3b Handle case 22 Moderation recessed part 23 Moderation ring (moderation body)
24 1st engagement body 25 2nd engagement body 26 Engagement rib (1st connection part)
27 Engaging groove (second connecting part)
30 Screw boss 32 Screw

Claims (6)

A main body case (1) that houses the blower fan (5), the heater unit (8), and the like, and a handle that is foldably connected to a handle connecting portion (2) provided on one side of the lower surface of the main body case (1) ( 3) and a hair dryer having a moderation structure for restricting the rotation of the handle (3) at each of the use position and the folding position,
The handle (3) is composed of a pair of handle cases (3a, 3b) that are joined and fixed with the handle connecting portion (2) interposed therebetween.
The moderation structure includes a moderation body (23) disposed between adjacent opposing surfaces of one handle case (3a) and the handle connection portion (2), and the moderation body (23) and the handle connection portion (2). A first engagement body (24) and a second engagement body (25) which are provided between and engage with each other;
The moderation body (23) is engaged with the one handle case (3a) and can rotate together with the handle (3).
A hair dryer in which a second engagement body (25) that engages with a first engagement body (24) provided on a moderation body (23) is provided on the handle connecting portion (2). The handle coupling part (2) is provided with a moderation recess (22) for accommodating the moderation ring (23),
A first engagement body (24) is provided on the outer peripheral surface of the moderation ring (23), and a second engagement body (25) for restricting the rotation of the first engagement body (24) is provided on the inner peripheral surface of the moderation recess (22). Provided,
When the moderation ring (23) rotates together with the handle case (3a), the first engagement body (24) causes the second engagement body (25) to be elastically deformed toward the inner surface of the ring. A hair dryer according to claim 1, wherein the handle (3) can be held in the use position and in the folded position after getting over. A moderation ring (23) and a moderation ring (23) are disposed between the handle connection portion (2) and one handle case (3a) along the rotation center axis of the handle (3). And a spring (42) for moving and biasing to the side,
A first engagement body (24) is provided on a surface of the moderation ring (23) adjacent to the handle connection portion (2), and a first engagement body is provided on a surface of the handle connection portion (2) adjacent to the moderation ring (23). A second engagement body (25) for engaging with (24) is provided,
When the moderation ring (23) rotates along with the handle case (3a), the first engagement body (24) moves the moderation ring (23) against the biasing force of the spring (42) while moving the second mode. The hair dryer according to claim 1, wherein the handle (3) can be held in a use position and a folded position by overcoming the engagement body (25).   A first coupling part (26) is formed on the outer end surface of the moderation ring (23) accommodated in the moderation recess (22), and the first coupling is connected to the engagement boss (34) provided on the inner surface of the handle case (3a). The hair dryer according to claim 2, wherein a second connecting portion (27) that engages with the portion (26) is formed. A moderation ring (23) and a screw boss (30) pivotally supported by the handle connecting portion (2) are provided in one handle case (3a) adjacent to and opposite to the ring (23). A fastening boss (31) for a screw (32) screwed into the screw boss (30) is provided inside the case (3b),
The hair dryer according to claim 2 or 3, wherein a second connecting portion (27) for engaging a moderation ring (23) is provided on the screw boss (30) side.   A first connecting portion (26) protrudes from the inner peripheral surface of the moderation ring (23), and the second connecting portion (27) engages with the first connecting portion (26) on the peripheral surface of the screw boss (30). The hair dryer according to claim 5, which is formed.

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