JP2011067315A - Hair care device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair care device having improved durability of a tactile mechanism. <P>SOLUTION: The hair care device 1 has the tactile mechanism 4 formed from a first engagement body 10 provided at a body housing 3H, and a second engagement body 20 provided at a grip housing 5H in a manner to move relative to the first engagement body 10 and engaged to the first engagement body 10 at a use position and a folded position of the hair care device 1 to restrict the turning of the grip housing 5H relative to the body housing 3H. In the hair care device, the second engagement body 20 is formed of a material having a strength larger than that of the grip housing 5H. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a hair care device.

  Conventionally, a foldable hair care device is known in which a grip portion is rotatably connected to a connecting portion of a main body portion in which a wind tunnel portion is formed (for example, see Patent Document 1).

  In Patent Document 1, a rotating ring provided on a boss portion formed on a main body portion and projecting a first convex portion on an outer periphery and a grip portion are integrally provided, and the grip portion is rotated relative to the main body portion. A moderation mechanism is formed by an annular rib projecting a second convex portion that overhangs the first convex portion and engages with the first convex portion while elastically deforming the rotating ring when moved. The moderation mechanism restricts the rotation of the grip portion relative to the main body at each of the use position and the folding position.

JP-A-2-77207

  In recent years, various functions such as mounting an ion generator in a hair care device have been given, and along with such high functionality, the body part of the hair care device has become heavy due to an increase in component configuration. Tend to be. In order to improve safety, a resin made flame-retardant by mixing a metal hydrate such as aluminum hydroxide or magnesium hydroxide into a resin material such as ABS resin may be used. It is known that the resin thus flame-retarded has lower strength properties than ordinary resins.

  Therefore, in the structure in which the annular rib provided with the second convex portion for receiving the first convex portion of the rotating ring is formed integrally with the grip portion as in the conventional hair care device, a flame-retardant resin is used. When the safety is increased, the strength of the annular rib also decreases. Therefore, there is a risk that the grip portion will be deformed or cracked due to the stress generated on the annular rib when the second convex portion gets over the first convex portion. is there. In particular, this problem becomes significant in the case of a hair care device having various functions.

  Then, an object of this invention is to obtain the hair care apparatus which can improve the durability of a moderation mechanism more.

  In the invention of claim 1, the main body housing, the grip housing rotatably attached to the connecting portion of the main body housing, and the rotation of the grip housing with respect to the main body housing in each of the use position and the folding position. A moderation mechanism for regulating the hair care device, wherein the moderation mechanism includes a first engagement body provided on any one member of the main body housing and the grip housing, and the first engagement body. A second engagement body that is provided on the other member so as to be relatively movable, and engages with the first engagement body at each of the use position and the folding position to restrict the rotation of the grip housing relative to the main body housing; The second engaging body is formed of a material having a higher strength than the other member.

  According to a second aspect of the present invention, in the hair care device according to the first aspect, the first engaging body and the second engaging body have a rotation center axis of the grip housing with respect to the main body housing. It is characterized by relative rotation as a center.

  According to a third aspect of the present invention, in the hair care device according to the second aspect, the first engaging body is formed in an annular shape around the rotation center axis.

  According to a fourth aspect of the present invention, in the hair care device according to the third aspect, the second engagement body is disposed to face the outer periphery of the first engagement body, and the first engagement is performed. A first convex portion and a second convex portion are provided on the outer periphery of the combined body and the outer periphery of the first engaging body of the second engaging body so as to be able to overcome each other with pressure contact. The rotation of the grip housing with respect to the main body housing is regulated or the regulation of the rotation is released by the first projection and the second projection overcoming each other with pressure contact. Features.

  According to a fifth aspect of the present invention, in the hair care device according to the fourth aspect, the second engaging body is formed in an annular shape that continuously surrounds the outer periphery of the first engaging body. It is characterized by.

  According to a sixth aspect of the present invention, in the hair care device according to any one of the first to fifth aspects, the second engagement body is formed separately from the other member. It is characterized by that.

  According to a seventh aspect of the present invention, in the hair care device according to any one of the first to sixth aspects, the second housing body formed in an annular shape includes the main body housing of the grip housing. The wall part extended in the direction orthogonal to the rotation center axis with respect to is provided.

  In the invention of claim 8, in the hair care device according to claim 5 or claim 6, the other member applies a load applied from the first engagement portion to the second engagement portion. The second engaging portion is not received by the outer peripheral portion.

  In invention of Claim 9, in the hair care apparatus of any one of Claims 1-8, the holding | maintenance part which hold | maintains a said 2nd engagement body is provided in said one member. It is characterized by.

  In invention of Claim 10, in the hair care apparatus of any one of Claims 1-9, it mutually contacts in the position spaced apart from the said moderation mechanism of the said main body housing and the said grip housing. A stopper portion for restricting relative rotation between the main body housing and the grip housing is provided.

  According to the first aspect of the present invention, since the second engagement body is formed of a material having a higher strength than the other member provided with the second engagement body, the first engagement body and the second engagement body It can be suppressed that the shape of the second engagement body is changed or cracked due to stress or the like generated during the engagement.

  According to the invention of claim 2, since the first engagement body and the second engagement body are rotated relative to each other about the rotation center axis of the grip housing with respect to the main body housing, the grip housing is attached to the main body housing. When rotating with respect to each other, the first engaging body and the second engaging body can be rotated integrally with one member and the other member, respectively. As a result, the structure of the moderation mechanism can be simplified.

  According to invention of Claim 3, since the 1st engagement body was formed in cyclic | annular form centering on the rotation center axis | shaft, it can suppress that the shape of a 1st engagement body changes.

  According to the invention of claim 4, the first convex portion and the second convex portion get over each other with pressure contact, thereby restricting the rotation of the grip housing relative to the main body housing or releasing the restriction of the rotation. Therefore, it is possible to give a click feeling when switching between the use state, the rotation state, and the folded state.

  In addition, by providing a first convex portion and a second convex portion that are capable of overcoming each other with pressure contact at a portion of the first engaging body facing the outer periphery of the first engaging body and the outer periphery of the first engaging body. When the first engagement body and the second engagement body are rotated relative to each other, the friction generated between the first engagement body and the second engagement body can be reduced as much as possible. Rotation operability with respect to the main body housing of the grip housing can be improved while suppressing a decrease in holding performance as much as possible.

  According to the invention of claim 5, since the second engaging body is formed in an annular shape that continuously surrounds the outer periphery of the first engaging body, the shape of the second engaging body is further changed. Can be suppressed.

  According to the invention of claim 6, since the second engaging body is formed separately from the other member, the second engaging body and the other member can be easily manufactured.

  According to the seventh aspect of the present invention, since the annularly formed second engaging body is provided with the wall portion extending in the direction orthogonal to the rotation center axis of the grip housing with respect to the main body housing, the second engaging body is provided. Can be prevented from being deformed in the radial direction.

  According to the eighth aspect of the invention, the other member is prevented from receiving the load applied from the first engaging portion to the second engaging portion at the outer peripheral portion of the second engaging portion. It is possible to suppress the load applied from the first engaging portion to the second engaging portion from being transmitted to the other member. As a result, the other member can be prevented from being damaged.

  According to the ninth aspect of the present invention, since the holding member that holds the second engaging body is provided on one of the members, the load applied to the second engaging portion from the first engaging portion is received by the holding portion. It is possible to further suppress the change in the shape of the second engagement body.

  According to the tenth aspect of the present invention, since the stopper portion is provided at a position separated from the moderation mechanism of the main body housing and the grip housing to restrict relative rotation between the main body housing and the grip housing. The holding performance in the state can be improved.

FIG. 1 is an external perspective view of a hair dryer according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view of a hair dryer according to an embodiment of the present invention. FIG. 3 is an exploded perspective view showing the grip mounting portion and the rotating ring of the main body right side housing according to the embodiment of the present invention. FIG. 4 is a perspective view showing a state in which the rotating ring is attached to the grip attaching portion of the main body right side housing according to the embodiment of the present invention. FIG. 5 is a plan view showing a rotating ring according to an embodiment of the present invention. FIG. 6 is an exploded perspective view showing the grip right side housing and the click ring according to the embodiment of the present invention. FIG. 7 is a view showing a state where a click ring is attached to the grip right housing according to the embodiment of the present invention. FIG. 8 is an exploded perspective view showing the main body left side housing and the inner surface side of the grip left side housing according to the embodiment of the present invention. FIG. 9 is an exploded perspective view showing a main body left housing and an outer surface side of the grip left housing according to the embodiment of the present invention. FIG. 10 is a cross-sectional view showing a moderation mechanism according to an embodiment of the present invention. FIG. 11 is an explanatory diagram showing the inside of the moderation mechanism in the usage state of the hair dryer according to the embodiment of the present invention. FIG. 12 is an explanatory view showing the inside of the moderation mechanism in the folded state of the hair dryer according to the embodiment of the present invention. FIG. 13 is an explanatory view showing the inside of the moderation mechanism in the usage state of the hair dryer according to the modification of the embodiment of the present invention. FIG. 14 is an explanatory view showing the inside of the moderation mechanism in the folded state of the hair dryer according to the modification of the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following, a hair brush is exemplified as the hair care device. 1 to 10, X indicates the left side, Y indicates the front side, and Z indicates the upper side.

  As shown in FIG. 1 and FIG. 2, the hair dryer 1 according to the present embodiment includes a grip part 5 as a part that a user grips with a hand, and a main body part 3 coupled in a direction intersecting the grip part 5. The grip portion 5 and the main body portion 3 are configured to have a substantially T-shaped or substantially L-shaped (substantially T-shaped in this embodiment) appearance when in use. A power cord 7 is drawn out from the protruding end of the grip portion 5. Moreover, the grip part 5 is connected with the main-body part 3 so that rotation is possible. The grip part 5 can be folded up to a position along the main body part 3.

  The main body 3 has a main body housing 3H that forms the outer wall thereof. A wind tunnel 2 extending from the inlet opening 3a on one side (right side) in the longitudinal direction (left-right direction in FIG. 2) to the outlet opening 3b is formed inside the main body housing 3H. By rotating the housed fan F, an air flow W is formed. That is, the air flow W flows into the wind tunnel 2 from the outside through the inlet opening 3 a, passes through the wind tunnel 2, and is discharged to the outside from the outlet opening 3 b.

  Further, a substantially cylindrical inner cylinder 3f is provided in the main body housing 3H, and the air flow W mainly flows inside the inner cylinder 3f. Note that a part of the air flow W is branched to flow in a cavity 3g described later, and this branched flow is used for ion blowing.

  Inside the inner cylinder 3f, the fan F is disposed on the most upstream side, the motor M for driving the fan F is disposed on the downstream side, and the heater H as a heating mechanism is disposed on the further downstream side of the motor M. . When the heater H is operated, warm air is blown out from the outlet opening 3b. In the present embodiment, the heater H is configured as a belt-like and corrugated electric resistor wound around the inner circumference of the inner cylinder 3f, but is not limited to this configuration.

  Then, an ion generator I that generates ions such as metal fine particles (for example, platinum ions) and mist (for example, negative ions) in a cavity 3g formed between the main body housing 3H and the inner cylinder 3f, and ion generation A voltage application circuit for applying a voltage to the device I is accommodated. In this embodiment, an ion generator I that generates metal fine particles and an ion generator I that generates mist are provided.

  As shown in FIG. 1, the main body housing 3H is formed with a cover 3h in which a metal fine particle discharge port 3c, a mist discharge port 3d, and a light emitting portion 3e are formed at a position on the side of the cavity outlet opening 3b. .

  In addition, a first switch 6 serving as a main switch is provided at the front central portion of the grip housing 5H so as to be movable in a plurality of stages up and down. By moving the first switch 6 up and down, On / off and air volume adjustment are switched. In addition, a second switch 61 is provided on the front side of the grip mounting portion (connecting portion) 31 of the main body housing 3H. The second switch 61 switches between hot air and cold air. A third switch 62 is provided at the side base of the unit 31, and the ion generator is turned on and off by the third switch 62.

  Further, the main body housing 3 and the grip housing 5 are rotatably connected with a click function by a moderation mechanism 4 provided between the lower end portion of the grip mounting portion 31 and the upper end portion of the grip housing 5.

  In the present embodiment, the main body housing 3H is formed by combining a main body left housing 3H1 and a main body right housing 3Hr that are divided into left and right parts, and the grip housing 5H is divided into a left and right grip left housing. It is formed by connecting 5Hl and the grip right housing 5Hr.

  As shown in FIG. 3, the moderation mechanism 4 is provided between an outer lower portion of the grip mounting portion 31 of the main body right housing 3Hr and an inner upper portion of the grip right housing 5Hr as shown in FIG. .

  The moderation mechanism 4 includes an elastically deformable rotating ring (first engaging body) 10 provided in the main body housing 3H, which is one of the main body housing 3H and the grip housing 5H, and the rotating ring 10 The grip housing 5H is provided on the grip housing (the other member) 5H so as to be capable of relative rotation (relative movement) around the rotation center axis C (see FIGS. 3 and 4) with respect to the main body housing 3H. A click ring (second engagement body) 20 that engages with the rotation ring 10 at each position and restricts rotation of the grip housing 5H relative to the main body housing 3H.

  As shown in FIG. 3, the rotating ring 10 is formed in a ring shape (annular shape) having a predetermined length a in the direction of the rotation center axis C.

  Furthermore, in this embodiment, as shown in FIG. 5, the rotating ring 10 has a radial thickness t1 of a portion 10K where a load R (a force for contracting the rotating ring 10 in the direction of the straight line L1) R acts on the rotating ring 10. Is thicker than the radial thickness t2 of the other portion 10N (t1> t2). Specifically, in order to make the thicknesses t1 and t2 different, the contour shape along the outer periphery of the rotating ring 10 is circular, and the contour shape along the inner periphery is elliptical. That is, in the present embodiment, the radial thickness of the rotating ring 10 is gradually increased from the other portion 10N toward the portion 10K where the load R acts. The contour shape along the inner periphery of the rotating ring 10 may be circular, and the contour shape along the outer periphery may be elliptical.

  Further, the first protrusion 12 is provided outside the portion 10K where the thickness t1 of the rotating ring 10 is increased, and the boss portion provided in the main body housing 3H is provided inside the portion 10N where the thickness t2 of the rotating ring 10 is reduced. A locking projection 11 is provided as a locking portion that is locked to the 33 engaging groove 33a. In the present embodiment, the first convex portion 12 and the locking projection 11 are provided at two locations in the circumferential direction of the rotating ring 10.

  Specifically, the first convex portion 12 is provided at two locations on one straight line L1 passing through the center of the rotating ring 10 (a point-symmetrical position with respect to the center of the rotating ring 10), and the locking protrusion 11 is provided. In addition, two points are provided on one straight line L2 (a point-symmetrical position with respect to the center of the rotating ring 10) that is disposed substantially perpendicular to the straight line L1 and passes through the center of the rotating ring 10.

  As shown in FIGS. 3 and 4, the rotation ring 10 has its center (intersection of the straight line L1 and the straight line L2) substantially coincident with the rotation center axis C of the grip housing 5H with respect to the main body housing 3H. It is attached to the main body housing 3H.

  The rotating ring 10 is disposed in a circular recess 32 provided outside the main body right housing 3Hr, and is fitted on the outer side of the boss 33 protruding from the bottom surface of the circular recess 32 around the rotation center axis C. Combined. At this time, a gap is provided between the inner peripheral surface of the rotating ring 10 and the outer peripheral surface of the boss portion 33 to allow elastic deformation of the rotating ring 10 (deformation contracting in the direction of the straight line L1).

  A pair of engaging grooves 33a are formed on one straight line passing through the center on the outer peripheral portion of the boss 33, and by engaging the engaging protrusions 11 of the rotating ring 10 with these engaging grooves 33a, When the rotating ring 10 is fixed to the boss portion 33 and the grip housing 5H is rotated relative to the main body housing 3H, the rotating ring 10 is integrated with the grip mounting portion 31 of the main body housing 3H with respect to the grip housing 5H. Relative rotation.

  On the other hand, in this embodiment, the click ring 20 is formed separately from the grip right housing 5Hr of the grip housing 5H as shown in FIG. 6, and the outer periphery of the rotating ring 10 is formed as shown in FIG. It is formed in an annular shape that continuously surrounds. That is, the click ring 20 is disposed to face the outer periphery of the rotating ring 10.

  The center of rotation of the grip housing 5H with respect to the main body housing 3H is provided at one end of the click ring 20 formed in an annular shape in the direction of the rotation center axis C, that is, on the end facing the inner surface of the grip right housing 5Hr. A bottom wall portion (wall portion) 21 extending in a direction orthogonal to the axis C is provided. The bottom wall portion 21 is provided in an annular shape integrally with the click ring 20.

  Then, the second protrusion that can get over the first protrusion 12 of the rotating ring 10 with pressure contact with the opposing portion where the click ring 20 faces the outer periphery of the rotating ring 10, that is, the inner peripheral surface of the click ring 20. A portion 22 is provided.

  As shown in FIG. 7, the second convex portion 22 is in a use state of the hair dryer 1, that is, a state in which the grip housing 5H intersects the main body housing 3H (use position: state shown in FIG. 1). Sometimes, a lid-shaped convex portion 22a that receives the first convex portion 12 in the center, and a click convex portion 22b provided at a position displaced from the lid-shaped convex portion 22a by the folding angle θ1 of the grip housing 5H. And is composed of. A pair of lid-shaped convex portions 22 a and click convex portions 22 b are provided corresponding to the pair of first convex portions 12. Further, the protruding portions of the lid-shaped convex portion 22a and the click convex portion 22b are arcuate.

  As shown in FIGS. 6 and 7, the click ring 20 is arranged inside a circular protrusion 51 provided at the upper end of the grip right housing 5Hr. The center of the circular protrusion 51 coincides with the rotation center axis C, and a stepped hole 52 is formed at the center. As shown in FIG. 10, the stepped hole 52 has a stepped portion 52a formed by reducing the diameter of the end facing the circular protruding portion 51 (main body right housing 3Hr). The front end of the cylindrical shaft 56 is abutted.

  On the bottom wall portion 21 of the click ring 20, as shown in FIG. 6, a plurality of engaging projections 23 (six locations in the present embodiment) are provided toward the circular projection 51 at substantially equal intervals in the circumferential direction. In addition, a plurality of recesses 53 are provided on the inner side of the circular protrusion 51 to closely fit the engagement protrusions 23.

  The recess 53 is provided between a plurality of radial ribs 53 a centering on the rotation center axis C, and the ribs 53 a are reinforced by arc-shaped ribs 53 b centering on the rotation center axis C. Then, by inserting and engaging the engaging convex portion 23 of the click ring 20 into the recess 53, the click ring 20 is fixed to the grip right housing 5Hr, and the grip housing 5H is rotated relative to the main body housing 3H. When this is done, the click ring 20 rotates relative to the main body housing 3H integrally with the grip housing 5H.

  At this time, as shown in FIG. 6, a part of the plurality of engaging protrusions 23, in this embodiment, the two engaging protrusions 23a located below protrude slightly from the other engaging protrusions 23b. Let it be high. In this way, when assembling the click ring 20 by projecting a part of the engaging protrusions 23 from the other engaging protrusions 23b, first, the high engaging protrusions 23a are formed in the recesses 53. After the insertion, the remaining engagement projection 23b can be inserted into the recess 53 using the inserted engagement projection 23a as a guide, and the engagement projection 23 can be easily inserted into the recess 53.

  Moreover, in this embodiment, while making the width | variety of the engaging convex part 23a wider than the width | variety of the other engaging convex part 23b, the width | variety of the recessed part 53a which inserts the engaging convex part 23a is made into the engaging convex part 23a. The width of the recess 53b is larger than the width of the other recess 53b so that the click ring 20 can be prevented from being erroneously assembled to the grip right housing 5Hr.

  Further, in the present embodiment, as shown in FIG. 4, protrusions 34 projecting outward are formed on both sides of the engagement groove 33 a of the boss 33 that fits the rotating ring 10. As shown in FIG. 6, on the surface of the circular protrusion 51 facing the main body right housing 3Hr, a straight line passing through the center is a pair of protrusions 54 that engage the protrusion 34 with the peripheral edge of the stepped hole 52. Formed on top.

  When the main body right housing 3Hr and the grip right housing 5Hr are assembled, the rotary ring 10 is assembled to the boss 33 of the main body right housing 3Hr, and the click ring 20 is assembled to the circular protrusion 51 of the grip right housing 5Hr. Thereafter, the circular protrusion 51 is placed from the outside on the circular recess 32 of the main body right housing 3Hr so that the inner periphery of the click ring 20 faces the outer periphery of the rotating ring 10. Thus, the main body right housing 3Hr and the grip right housing 5Hr are temporarily assembled.

  At this time, the protrusions 34 of the boss 33 to which the rotating ring 10 is fitted are respectively fitted to arc-shaped recesses 54a formed between the pair of protrusions 54 at the periphery of the stepped hole 52, and the grip housing 5H is used. The protrusion 34 moves in the arcuate recess 54a by the rotation between the position and the folding position. When the hair dryer 1 is put into use, the protrusion 34 abuts against one of the pair of convex portions 54 and the hair dryer 1 is folded, that is, the grip housing 5H is placed along the body housing 3H (folded) Position), the protrusion 34 abuts against the other of the pair of convex portions 54. Thus, in the present embodiment, the inner first stopper portion S1 is configured by the protruding portion 34 and the convex portion 54.

  Next, the assembly of the main body left housing 3Hl and the grip left housing 5Hl will be described.

  As shown in FIG. 8, a circular recess 35 is formed on the lower outer side of the grip mounting portion 31 of the main body left housing 3H1, and a circular protrusion 55 is provided at the upper end of the grip left housing 5H1. A cylindrical shaft 56 is provided on the inner side of the circular projecting portion 55 so as to reach the stepped hole 52 (see FIG. 10) of the grip right housing 5Hr with the rotation center axis C as a center. At the center of the 3Hl circular recess 35, an insertion hole 36 is formed on the rotation center axis C so that the cylindrical shaft 56 is rotatably and closely fitted.

  In addition, a pair of fan-shaped convex portions 37 project from the outer surface of the circular concave portion 35 with a predetermined angle θ2 around the insertion hole 36, and the inner surface of the circular projecting portion 55 centers around the cylindrical shaft 56. A pair of arcuate recesses 57 for receiving the fan-shaped protrusions 37 are provided.

  Then, as shown in FIG. 9, the circular protrusion 55 of the grip left housing 5Hl is placed outside the circular recess 35 of the main body left housing 3Hl so that the cylindrical shaft 56 is inserted through the insertion hole 36. Thus, the temporary assembly of the main body right housing 3Hr and the grip right housing 5Hr is completed. At this time, the tip end portion of the cylindrical shaft 56 is in a state of protruding a predetermined amount from the inside of the insertion hole 36.

  Further, when the circular protrusion 55 is put on the circular recess 35, the fan-shaped convex portion 37 is fitted into the arc-shaped concave portion 57, and the fan-shaped convex portion 37 moves in the arc-shaped concave portion 57 as the grip housing 5H rotates. . When the hair dryer 1 is in the used state and in the folded state, the fan-shaped convex portions 37 abut against the both end walls 57a of the arc-shaped concave portion 57, and the fan-shaped convex portions 37 and the both end walls 57a The second stopper portion S2 is configured.

  Further, as shown in FIG. 8, an arc-shaped opening 38 is formed in the lower part of the circular recess 35 of the main body left side housing 3 </ b> Hl, but a notch 38 a is formed in a part of the outer peripheral portion of the opening 38. Is formed. As shown in FIGS. 4 and 10, a protrusion 39 that protrudes in close contact with the notch 38 a protrudes from the lower end of the grip mounting portion 31 of the right side housing 3 </ b> Hr.

  The main body right housing 3Hr and the grip right housing 5Hr, and the main body left housing 3Hl and the grip left housing 5Hl that are temporarily assembled in this way are the fan F, the heater H, the motor M, the ion generator I, and the first to third. After incorporating the functional parts such as the switches 6, 61, 62 and the power cord 7, the main body right housing 3Hr and the main body left housing 3Hl are abutted, and the grip right housing 5Hr and the grip left housing 5Hl are abutted, Combine the butted parts.

  At this time, the tip of the cylindrical shaft 56 protruding from the inside of the insertion hole 36 formed in the main body left housing 3Hl is inserted into the stepped hole 52 of the grip right housing 5Hr as shown in FIG. Then, a fixing screw (which may be a bolt) B is inserted from the outside (right side in FIG. 10) into the center hole 52b of the stepped portion 52a and screwed into the center hole 56a of the cylindrical shaft 56 to be tightened. Thus, the main body right housing 3Hr and the grip right housing 5Hr, and the main body left housing 3Hl and the grip left housing 5Hl are fixed to each other with the moderation mechanism 4 provided.

  Further, when the main body left housing 3Hl and the main body right housing 3Hr are brought into contact with each other, the protrusion 39 of the main body right housing 3Hr is closely fitted to the notch 38a of the main body left housing 3Hl, so that the lower portions of both housings 3Hl and 3Hr Alignment is performed.

  The main body housing 3H and the grip housing 5H assembled in this way are connected so as to be relatively rotatable between the use position and the folding position. Then, when the main body housing 3H and the grip housing 5H are relatively rotated about the rotation center axis C, the rotation ring 10 and the click ring 20 are relatively rotated. Then, the first convex portion 12 of the rotating ring 10 and the second convex portion 22 (the lid-shaped convex portion 22a and the click convex portion 22b) of the click ring 20 move over each other with pressure contact. Become.

  Specifically, as shown in FIG. 11, in order to use the hair dryer 1, the grip housing 5H is rotated to the use position (for example, the grip housing 5H is moved from the state of FIG. 12 to the state of FIG. 11). When the first protrusion 12 is rotated clockwise with respect to the main body housing 3H, the first protrusion 12 gets over the protrusion 22c on the click protrusion 22b side of the cover protrusion 22a with pressure contact, and the protrusion 22a Is fitted (engaged) with the center of In this way, by fitting the first convex portion 12 to the central portion of the lid-shaped convex portion 22a, the relative rotation of the grip housing 5H with respect to the main body housing 3H is the clockwise direction of the grip housing 5H in FIG. Both the use direction) and the counterclockwise direction (folding direction) are restricted, and the grip housing 5H is held at the use position. In this use state, the first stopper portion S1 and the second stopper portion S2 are also in a state where relative rotation of the grip housing 5H with respect to the main body housing 3H in the use direction is restricted.

  As shown in FIG. 12, when the use of the hair dryer 1 is finished and the grip housing 5H is folded, first, the first protrusion 12 reverses the protrusion 22c on the click protrusion 22b side of the cover protrusion 22a. Relative to the direction of use (folding direction) and further rotated so that the first convex portion 12 gets over the click convex portion 22b, the relative rotation of the grip housing 5H in the usage direction with respect to the main body housing 3H is restricted. At this time, the first stopper part S1 and the second stopper part S2 are in a state where relative rotation of the grip housing 5H with respect to the body housing 3H in the folding direction is restricted. Accordingly, the engagement between the first convex portion 12 and the click convex portion 22b and the first stopper portion S1 and the second stopper portion S2 cause the rotating ring 10 and the click ring 20 to rotate in the clockwise direction (use direction) and counterclockwise. The relative rotation in the clockwise direction (folding direction) is restricted, and the grip housing 5H is held in the folded state.

  As described above, in the present embodiment, the first convex portion 12 and the second convex portion 22 get over each other with pressure contact, thereby restricting the rotation of the grip housing 5H relative to the main body housing 3H or the rotation. Or lift the regulations. By doing so, a click feeling can be given at the time of switching between the use state, the rotation state, and the folded state.

  Here, in this embodiment, the click ring 20 is formed of a material having higher strength than the grip right housing 5Hr (grip housing 5H). For example, when each is integrally formed by injection molding or the like using a synthetic resin as a material, the click ring 20 is formed using a synthetic resin material having higher strength than the synthetic resin material of the grip housing 5H. In the present embodiment, the left and right housings 3Hl and 3Hr of the main body housing 3H and the left and right housings 5Hl and 5Hr of the grip housing 5H are made of a resin material such as ABS resin with metal hydration such as aluminum hydroxide or magnesium hydroxide. The click ring 20 is formed using a resin material such as an ABS resin in which a metal hydrate is not mixed. The click ring 20 can be formed using a metal such as aluminum. However, in terms of workability and cost, it is preferable to form the click ring 20 using a synthetic resin having higher strength than using a metal.

  In the present embodiment, the right side housing 5Hr (grip housing 5H) receives a load applied to the click ring 20 from the rotating ring 10 (reaction force received from the rotating ring 10 elastically deformed by the click ring 20). It is not received at the outer periphery.

  Specifically, a non-contact portion 58 that does not contact the outer peripheral portion of the click ring 20 (the outer peripheral surface of the side wall portion) is provided in the grip right housing 5Hr. That is, the click ring 20 is fixed to the grip right housing 5Hr by fitting the engaging protrusion 23 into the recess 53 provided inside the circular protrusion 51. At this time, the circular protrusion 51 By making the outer periphery of the contact hole substantially the same as the front end surface of the recess 53, a non-contact portion 58 is formed in the grip right housing 5Hr, and a portion in contact with the outer periphery of the click ring 20 is eliminated.

  In other words, the click ring 20 is brought into contact with the grip right housing 5Hr at a portion other than the outer peripheral portion of the click ring 20, and the click ring 20 is fixed to the grip right housing 5Hr.

  On the other hand, the main body right housing 3Hr is provided with a holding portion 32a that holds the outside of the click ring 20. In the present embodiment, the holding portion 32 a uses a circular concave portion 32 in which the boss portion 33 is formed, and the holding portion 32 a is formed by the outer peripheral wall 32 a of the circular concave portion 32.

  Furthermore, in this embodiment, as shown in FIGS. 11 and 12, the main body housing 3H and the grip housing 5H are in contact with each other at positions outside the click ring 20 (positions away from the moderation mechanism 4). An outer stopper portion S3 that restricts relative rotation between 3H and the grip housing 5H is provided. The stopper portion S3 is configured by a protrusion 40 that extends the lower end of the front side of the grip mounting portion 31 of the main body housing 3H further downward, and a receiving seat 59 provided on the rear inner surface of the grip housing 5H. Thus, when the grip housing 5H is folded, the grip housing 5H serves as a stopper for restricting relative rotation of the grip housing 5H in the folding direction with respect to the main body housing 3H.

  As shown in FIGS. 3 and 8, the protruding portion 40 is provided as a divided protruding portion 40a, 40b that is divided into the main body right housing 3Hr and the main body left housing 3H1, respectively. The halved protrusions 40a and 40b are joined by the butting, and a tongue-like protrusion 40 having a tip protruding in an arc shape is formed.

  On the other hand, as shown in FIG. 6, the receiving seat 59 is provided as a trapezoidal cross section on the right side to which the moderation mechanism 4 is attached, that is, on the rear inner surface of the grip right housing 5Hr. At this time, the receiving seat 59 is formed at a height h corresponding to the depth of the grip right housing 5Hr.

  Note that when the two housings 5Hr and 5Hl are brought into contact with each other, the receiving seat 59 may be disposed over the entire inner width of the grip housing 5H. If it carries out like this, when the grip housing 5H is folded, the protrusion part 40 can be reliably received by the seat 59 here now. Further, as shown in FIG. 1, the front upper portion of the grip housing 5 </ b> H has a recessed shape portion 5 a that follows the shape of the protruding portion 40.

  Furthermore, as shown in FIG. 11, when the hair dryer 1 is in use, the rear lower end portion 31a of the grip mounting portion 31 comes into contact with the rear upper end portion 5b of the grip housing 5H. The lower end portion 31a and the rear upper end portion 5b constitute an outer stopper portion S4 at the use position of the grip housing 5H.

  As described above, the rotation ring 10 that rotates integrally with the main body housing 3H and the click ring 20 that rotates together with the grip housing 5H rotate relatively, and the first convex portion 12 of the rotation ring 10 and When the second convex portion 22 of the click ring 20 gets over each other, the rotating ring 10 is elastically deformed and contracts in the direction of the straight line L1, and the reaction force by the elastically deforming rotating ring 10 is clicked. 20 is input.

  However, in the present embodiment, the click ring (second engagement body) 20 is formed of a material having a higher strength than the grip housing (the other member) 5H, so that the reaction force is exerted by the click ring 20 having a higher strength. It can be firmly received and can be prevented from reaching the grip housing 5H. Therefore, the shape of the click ring 20 can be prevented from changing or cracking, and the shape change or cracking of the grip housing 5H can be prevented from occurring. Thereby, durability of the moderation mechanism 4 can be improved.

  This is particularly effective when the grip housing 5H and the main body housing 3H are formed using a flame-retardant material to improve safety as in the present embodiment.

  Further, according to the present embodiment, the rotation ring (first engagement body) 10 and the click ring (second engagement body) 20 are relatively centered on the rotation center axis C of the grip housing 5H with respect to the main body housing 3H. Since the grip housing 5H is rotated with respect to the main body housing 3H, the rotating ring 10 and the click ring 20 are respectively connected to the main body housing (one member) 3H and the grip housing (other member) 5H. It can be rotated integrally. As a result, the structure of the moderation mechanism 4 can be simplified.

  Moreover, according to this embodiment, since the rotation ring 10 was formed in the cyclic | annular form centering on the rotation center axis | shaft C, it can suppress that the shape of the rotation ring 10 changes.

  In addition, according to the present embodiment, the first convex portion 12 and the second convex portion 22 get over each other with pressure contact, thereby restricting the rotation of the grip housing 5H relative to the main body housing 3H or the rotation. In other words, a click feeling can be given when switching between the use state, the rotation state, and the folded state.

  In addition, by providing the first convex portion 12 and the second convex portion 22 that can be overcome each other with pressure contact at the outer peripheral portion of the rotating ring 10 and the outer peripheral portion of the rotating ring 10 of the click ring 20 (inner periphery). When the rotating ring 10 and the click ring 20 are rotated relative to each other, the friction generated between the rotating ring 10 and the click ring 20 can be reduced as much as possible, and the deterioration of the holding performance in the use state and the folded state is suppressed as much as possible. However, the rotation operability of the grip housing 5H relative to the main body housing 3H can be improved.

  Moreover, according to this embodiment, since the click ring 20 is formed in an annular shape and continuously surrounds the outer periphery of the rotating ring 10, it is possible to further suppress the shape of the click ring 20 from being changed, The durability of the moderation mechanism 4 can be further improved.

  Furthermore, according to this embodiment, since the click ring 20 is formed separately from the grip housing 5H, the click ring 20 and the grip housing 5H can be easily manufactured.

  Further, since reaction force due to elastic deformation of the rotating ring 10 input to the click ring 20 can be prevented from being directly transmitted to the grip housing 5H, even if the strength of the grip housing 5H is reduced due to incombustibility, etc. The durability of the mechanism 4 can be improved.

  Furthermore, by forming the click ring 20 separately from the grip housing 5H, it is possible to suppress the occurrence of sink marks or the like on the appearance surface when the grip housing 5H is formed, and to improve the appearance. it can.

  Moreover, according to this embodiment, the bottom wall part (wall part) 21 extended in the direction orthogonal to the rotation center axis | shaft C at the one end part of the rotation center axis | shaft C direction of the click ring 20 formed cyclically | annularly. Therefore, the click wall 20 can be prevented from expanding in the radial direction by the bottom wall portion 21. Thereby, the strength of the click ring 20 can be further increased, and the durability of the moderation mechanism 4 can be further improved.

  Further, according to the present embodiment, the grip housing 5H does not receive the reaction force (load) applied to the click ring 20 from the rotating ring 10 at the outer periphery of the click ring 20, that is, the grip housing 5H Since the non-contact portion 58 that does not contact the outer peripheral portion of the click ring 20 is provided, it is possible to suppress the reaction force received by the click ring 20 in the diameter increasing direction from being transmitted to the grip housing 5H. As a result, the grip housing 5H can be prevented from being damaged.

  In addition, according to the present embodiment, since the holding portion 32a that holds the outside of the click ring 20 is provided in the main body housing 3H, the reaction force (load) applied to the click ring 20 from the rotating ring 10 is received by the holding portion 32a. And the shape of the click ring 20 can be further prevented from being deformed.

  Further, according to the present embodiment, the main body housing 3H and the grip housing 5H are in contact with each other at a position outside the click ring 20 (a position away from the moderation mechanism 4) of the main body housing 3H and the grip housing 5H. Since the outer stopper portion S3 for restricting the rotation is provided, it is possible to improve the holding performance in the use state or the folded state.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and various modifications can be made.

  For example, in the above embodiment, a hair dryer is exemplified as the hair care device, but the present invention is applied to a hair brush having a brush part (main body part) and a grip part, and the grip part being foldable with respect to the brush part. It is also possible to do. Further, the present invention may be applied to other hair care devices.

  In the above embodiment, the click ring is provided separately from the grip housing. However, the click ring may be formed integrally with the grip housing by, for example, two-color molding.

  Moreover, in the said embodiment, although what used the resin made flame-retardant by mixing metal hydrate in resin materials, such as ABS resin, was illustrated, not only this but well-known flame-retardant resin is used. It is also possible to use it.

  Furthermore, in the said embodiment, although the hair care apparatus which had various functions, such as mounting an ion generator etc. in a main-body part, was illustrated, what function is mounted among these well-known functions? Can be set as appropriate, even when not installed.

  Also, the main body housing, grip housing, click ring, rotating ring, and other detailed specifications (shape, size, layout, etc.) can be changed as appropriate. For example, in the above-described embodiment, the second convex portion 22 of the click ring 20 is configured by the lid-shaped convex portion 22a and the click convex portion 22b, and the click convex portion 22b engages the first convex portion at the folding position. 13 and 14, as shown in FIGS. 13 and 14, the click ring 20A provided with only the bump-shaped convex portion 22a is used, and the lid-shaped convex portion 22a is the first convex in both the use position and the folded position. The parts may be engaged. In this way, the holding performance in the folded body can be further improved.

1 Hair dryer (hair care equipment)
3H body housing (one member)
4 Moderation mechanism 5H Grip housing (other member)
10 Rotating ring (first engaging body)
12 1st convex part 20 Click ring (2nd engaging body)
21 Bottom wall (wall)
22 2nd convex part 32a Holding part C Rotation center axis S3 Stopper part

Claims (10)

A hair care comprising: a main body housing; a grip housing rotatably attached to a connecting portion of the main body housing; and a moderation mechanism that restricts rotation of the grip housing relative to the main body housing at each of a use position and a folding position. A device,
The moderation mechanism is provided in a first engagement body provided in one member of the main body housing and the grip housing, and provided in the other member so as to be relatively movable with respect to the first engagement body. And a second engagement body that engages with the first engagement body at each of the folded positions and restricts the rotation of the grip housing relative to the main body housing,
The hair care apparatus, wherein the second engagement body is formed of a material having a strength higher than that of the other member.   The hair care device according to claim 1, wherein the first engagement body and the second engagement body rotate relative to each other about a rotation center axis of the grip housing with respect to the main body housing.   The hair care device according to claim 2, wherein the first engagement body is formed in an annular shape centering on the rotation center axis. The second engagement body is disposed opposite to the outer periphery of the first engagement body, and
A first convex portion and a second convex portion, which are capable of getting over each other with pressure contact, are disposed on the outer periphery of the first engagement body and the outer periphery of the first engagement body of the second engagement body. Each is provided,
The rotation of the grip housing with respect to the main body housing is restricted or the restriction of the rotation is released by the first protrusion and the second protrusion getting over each other with pressure contact. The hair care device according to claim 3.   The hair care device according to claim 4, wherein the second engagement body is formed in an annular shape that continuously surrounds an outer periphery of the first engagement body.   The hair care device according to any one of claims 1 to 5, wherein the second engagement body is formed separately from the other member.   The wall of the second engaging body formed in an annular shape is provided with a wall portion extending in a direction orthogonal to a rotation center axis of the grip housing with respect to the main body housing. The hair care device according to any one of 6.   6. The other member is configured not to receive a load applied from the first engagement portion to the second engagement portion at an outer peripheral portion of the second engagement portion. Or the hair care apparatus of Claim 6.   The hair care device according to any one of claims 1 to 8, wherein the one member is provided with a holding portion that holds the second engaging body.   The stopper part which contact | abuts mutually and regulates relative rotation of the said main body housing and the said grip housing is provided in the position spaced apart from the said moderation mechanism of the said main body housing and the said grip housing. The hair care device according to any one of 1 to 9.

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