CN210715290U

CN210715290U - Air supply device and clothes

Info

Publication number: CN210715290U
Application number: CN201890000460.6U
Authority: CN
Inventors: 山内宪; 岩上润一
Original assignee: Makita Corp
Current assignee: Makita Corp
Priority date: 2017-01-20
Filing date: 2018-01-09
Publication date: 2020-06-09
Anticipated expiration: 2028-01-09
Also published as: JP2018115646A; CN213016862U; JP6851206B2; WO2018135340A1

Abstract

The utility model provides a technique relating to an air supply device capable of dealing with various clothes with different thicknesses. The air blowing device (1) comprises: a motor; a fan; a housing (4) that houses the motor and the fan; an annular member (5) detachably attached to the housing (4) along a predetermined operation path; a flange (43) provided to the housing; a flange (53) which is provided on the annular member (5) and which sandwiches the clothing material with the flange (43); and a locking mechanism (6). The locking mechanism (6) comprises: a locking protrusion (66) provided on the annular member (5); and a guide groove (61) which is provided in the housing (4) and which locks the locking projection (66) in the direction of the rotation axis (A1) at any one of a plurality of locking positions that are different from each other in the direction of the rotation axis (A1). Each of the plurality of locking positions is located on a path through which the locking projection (66) can pass in the process of attaching the annular member (5) to the housing (4) along the operation path.

Description

Air supply device and clothes

Technical Field

The utility model relates to a clothes of detachable air supply device and detachable air supply device.

Background

There is known an air blowing device which is attached to clothes worn by a worker during operation in a high-temperature environment or the like, and blows air into the clothes to ventilate the inside of the clothes. For example, international publication No. 2007/061088 discloses an air blower having a fan main body and an annular member. When the air blower is attached to the garment, the operator inserts the fan body from the outside so that the flange portion of the fan body abuts against the peripheral end portion of the opening provided in the garment. The ring-shaped member is fitted into the fan body from the inside of the garment in the axial direction of the fan, and the locking portion of the fan body is engaged with the projection of the ring-shaped member. Accordingly, the air blower is fixed to the garment with the fabric sandwiched between the flange portion and the ring member from the outside and the inside.

SUMMERY OF THE UTILITY MODEL

[ problem to be solved by the utility model ]

In the blower device, the gap between the flange portion and the annular member is fixed when the engagement portion engages with the projection. Therefore, the air blowing device may not be reliably fixed to the clothes due to the thickness of the clothes on which the air blowing device is mounted. On the other hand, since the thickness of clothes worn by a worker often varies depending on the season or work environment, a blower device capable of coping with a plurality of kinds of clothes having different thicknesses is desired.

An object of the utility model is to provide a technique about can deal with the air supply arrangement who has the multiple clothes of different thickness.

[ technical means for solving problems ]

According to a technical scheme of the utility model, provide a constitution for can adorn in the air supply arrangement of clothes in the dismantlement. The blower device includes a motor, a fan, a housing, a mounting member, a first clamping portion, a second clamping portion, and a locking mechanism.

The housing accommodates a motor and a fan driven to rotate by the motor. The mounting member is configured to be detachably mounted to the housing along a predetermined operation path. The first clamping portion is provided on the housing, and the second clamping portion is provided on the mounting member. When the mounting member is mounted to the housing, the second clamping portion is disposed opposite to the first clamping portion in the direction of the rotation axis of the fan, and clamps the cloth of the garment between the second clamping portion and the first clamping portion.

The locking mechanism is configured to limit movement of the mounting member in the direction of the rotation axis relative to the housing by locking the mounting member to the housing in the direction of the rotation axis of the fan. The locking mechanism includes a first locking portion provided on one of the housing and the mounting member and a second locking portion provided on the other of the housing and the mounting member. The second locking portion is configured to lock the first locking portion in the rotation axis direction at any one of a plurality of locking positions different from each other in the rotation axis direction of the fan. Each of the plurality of locking positions is located on a path through which the first locking portion can pass in the process of attaching the attachment member to the housing along the operation path.

The "plurality of locking positions different from each other in the rotation axis direction" referred to herein may include a case where the locking positions are located at positions different from each other on the same straight line extending in the rotation axis direction, and a case where the locking positions are located at positions different from each other in both the rotation axis direction and the direction intersecting the rotation axis. The term "locking in the direction of the rotation axis" may include a case of locking only in a predetermined one of the extending directions of the rotation axis and a case of locking in both the extending directions of the rotation axis. Preferably at least in the direction in which the mounting member and the housing are separated from each other.

According to the present invention, the second locking portion can lock the first locking portion at any one of the plurality of locking positions in the direction of the rotation axis of the fan, that is, in the direction in which the first clamping portion and the second clamping portion clamp the cloth. Therefore, the user can appropriately hold the cloth between the first clamping portion and the second clamping portion by selecting the locking position of the first locking portion relative to the second locking portion according to the thickness of the cloth of the worn clothes. Further, in the process of attaching the attachment member to the housing along the predetermined operation path, the plurality of locking positions are located on a predetermined path through which the first locking portion can pass. Therefore, the user can lock the first locking portion to the second locking portion at an appropriate locking position in a series of operations for attaching the attachment member to the housing. That is, it is not necessary to temporarily detach the attachment member from the housing and reattach the attachment member in order to change the locking position. Thus, the air supply device of the technical scheme can be used for treating various clothes with different thicknesses through easy operation.

According to an aspect of the present invention, the mounting member can be configured to move relative to the housing in the order of the rotation axis direction and the circumferential direction around the rotation axis by following the movement path, thereby being mounted on the housing. The plurality of locking positions may be located at circumferentially extending portions of a path through which the first member can pass.

According to this aspect, the attachment member is attached to the housing by the user operating the attachment member in two directions in the order of the rotation axis direction and the circumferential direction with respect to the housing. Since the first locking portion is locked to the second locking portion at any locking position located at the portion extending in the circumferential direction, the possibility of the mounting member being detached from the housing can be suppressed.

According to an aspect of the present invention, the air supply device may further include a rotation restricting mechanism configured to restrict rotation of the mounting member relative to the housing by engaging the mounting member with the housing along the circumferential direction. The rotation restricting mechanism may include a first rotation restricting portion provided to one of the housing and the mounting member and a second rotation restricting portion provided to the other of the housing and the mounting member. The second rotation restricting portion may be configured to lock the first rotation restricting portion in the circumferential direction. The term "circumferential locking" as used herein may include a case of locking only in a predetermined one of the circumferential directions and a case of locking in both the circumferential directions. Preferably, the locking member is locked in a second direction opposite to the first direction at least when the mounting member is moved relatively in the first direction in the circumferential direction while being mounted to the housing.

According to the present invention, since the rotation of the mounting member in the circumferential direction with respect to the housing is restricted by the rotation restricting mechanism, the possibility of the mounting member coming off from the housing can be more reliably suppressed.

According to an aspect of the present invention, the second rotation restricting portion may be configured to stop the first rotation restricting portion in response to an operation of the mounting member rotating in the circumferential direction with respect to the housing. According to this aspect, when the user rotates the attachment member in the circumferential direction while attaching the attachment member to the housing, the first rotation restricting portion is locked by the second rotation restricting portion. The user can operate both the locking mechanism and the rotation restricting mechanism only by the operation of attaching the attachment member to the housing.

According to an aspect of the present invention, the second rotation restricting portion can be constituted so as to be able to stop the first rotation restricting portion along the circumferential direction at a plurality of rotation restricting positions corresponding to the plurality of stop positions and different in the circumferential direction. According to the present invention, even when the first locking portion is locked at any one of the plurality of locking positions by the second locking portion, the rotation of the mounting member with respect to the housing can be appropriately restricted by the rotation restricting mechanism.

According to a technical scheme of the utility model, air supply arrangement can also have additional card and end the mechanism. The additional locking mechanism may be configured to lock the mounting member to the housing in at least one of the rotation axis direction and the circumferential direction, thereby restricting at least one of movement of the mounting member in the rotation axis direction and rotation in the circumferential direction with respect to the housing. According to the present invention, since the additional locking mechanism is used in combination with the locking mechanism (and the rotation restricting mechanism), even when the mechanism used in combination cannot function for some reason, the additional locking mechanism can function, and therefore, the mounting member can be more reliably prevented from coming off the housing.

According to an aspect of the present invention, at least one of the housing and the mounting member may have a finger grip protrusion or a finger grip recess. In this case, when the user detaches the mounting member from the housing, the detaching operation can be easily performed.

According to the utility model discloses a technical scheme, the colour of installation component can be different with the colour of casing. According to the present invention, since the user can visually distinguish the housing from the attachment member attached to and detached from the housing, the attaching and detaching operation (particularly, the detaching operation) is facilitated. Further, the mounting member and the housing may be formed integrally of one color or may have a portion containing a different color. When the color of the part of the attachment member and the color of the part of the housing are different from each other, it is preferable that the colors of the parts visible from the same direction be different when the air blowing device is attached to the garment. Further, the color of the mounting member is preferably a color whose contrast with the color of the housing is clear.

The housing accommodates a motor and a fan driven to rotate by the motor. The mounting member is configured to be detachably mounted to the housing by being relatively moved with respect to the housing in the order of the direction of the rotation axis of the fan and the circumferential direction around the rotation axis along a predetermined operation path. The first clamping portion is provided on the housing, and the second clamping portion is provided on the mounting member. When the mounting member is mounted to the housing, the second clamping portion is disposed opposite to the first clamping portion in the direction of the rotation axis of the fan, and clamps the cloth of the garment between the second clamping portion and the first clamping portion.

The locking mechanism is configured to limit movement of the mounting member in the rotation axis direction with respect to the housing by locking the mounting member to the housing in the rotation axis direction. The locking mechanism includes a first locking portion provided on one of the housing and the mounting member and a second locking portion provided on the other of the housing and the mounting member. The second locking portion is configured to lock the first locking portion in the rotation axis direction at least one locking position, wherein the at least one locking position is located at a portion extending in the circumferential direction in a path through which the first locking portion can pass in the process of relative movement of the mounting member in the circumferential direction.

According to the present invention, in the process of relatively moving the attachment member with respect to the housing in the order of the rotation axis direction of the fan and the circumferential direction around the rotation axis, the first locking portion is locked by the second locking portion in the rotation axis direction at the locking position of the portion extending in the circumferential direction on the path. Therefore, after the first locking portion is locked by the second locking portion, the locking in the rotation axis direction is not released as long as both of them do not move in the circumferential direction temporarily. With this structure, the possibility of the mounting member coming off the housing can be effectively suppressed. In the present embodiment, only one or a plurality of locking positions may be provided.

According to an aspect of the present invention, there is provided a garment comprising the air supply device according to any of the above aspects of the present invention. The air blowing device according to each of the above-described aspects is attached to the clothing, and therefore, ventilation can be achieved within the clothing, and a comfortable working environment can be provided to a user.

According to a technical scheme of the utility model, the clothes can also be provided with an air supply device, a battery holder (battery holder) and a power line (cable) related to the above technical schemes, wherein the battery supplies power to the motor; the battery bracket is configured to be capable of mounting a battery and connecting the battery; the power cord is configured to be able to connect the battery holder and the motor. According to the present invention, the battery holder and the motor are connected via the power cord, so that the degree of freedom in the arrangement of the battery and the battery holder with respect to the air blowing device can be improved. Here, "attachment" means physical engagement and "connection" means electrical connection.

According to an aspect of the present invention, the air supply device may have a device side connector (connector) connected to the motor, and on the other hand, the power line may have a power line side connector that can be connected to the device side connector. The housing may have a connector regulating member configured to regulate the movement of the power line-side connector in a direction to be disengaged from the device-side connector when the device-side connector is connected thereto. According to the technical scheme, the possibility that the power cord is separated from the air supply device when a user is wearing clothes to perform operation can be reduced.

According to the utility model discloses a technical scheme, air supply arrangement can have block portion. The clothing may further include a drop-off prevention mechanism configured to prevent at least the casing from dropping off from the clothing by engaging with an engagement portion of the blower attached to the clothing. According to this aspect, even when the first and second clamping portions release the clamping of the cloth for some reason, the casing that houses the motor and the fan can be prevented from falling off the clothes and damaging the air blower.

Drawings

Fig. 1 is a rear view of the jacket.

Fig. 2 is an explanatory view of a fan mounting portion of the jacket.

Fig. 3 is a perspective view of the air blowing device.

Fig. 4 is a perspective view of the air blower with the ring member removed from the main body.

Fig. 5 is a side view of the main body.

Fig. 6 is a rear view of the main body portion.

Fig. 7 is a sectional view VII-VII of fig. 5.

Fig. 8 is a perspective view of a battery and a battery holder.

Fig. 9 is a plan view of the power supply line.

Fig. 10 is a perspective view of an additional locking mechanism.

Fig. 11 is a side view of the blower when the locking projection is at the first locking position.

Fig. 12 is a cross-sectional view XII-XII of fig. 11.

Fig. 13 is a side view of the blower when the locking projection is at the second locking position.

Fig. 14 is a cross-sectional view XIV-XIV of fig. 13.

Fig. 15 is a perspective view of a blower according to a modification.

Fig. 16 is a front view of the air blowing device in a state where the power cord is connected.

Fig. 17 is a cross-sectional view of XVII-XVII of fig. 16.

Fig. 18 is a perspective view of the jacket according to the modification.

Fig. 19 is an explanatory view showing an inner structure of the jacket.

Fig. 20 is a perspective view of the blower device with the fan holding band attached.

Fig. 21 is an explanatory diagram of a locking mechanism of a modification.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, the air blower 1 is exemplified as an example of the air blower according to the present invention. Further, the jacket 9 is exemplified as a garment to which the air blowing device is detachably attached.

First, a usage of the blower 1 according to the present embodiment will be briefly described with reference to fig. 1 and 2.

As shown in fig. 1, the blower 1 of the present embodiment is used by being attached to a jacket 9, for example. As shown in fig. 2, the jacket 9 is a front-opening long-sleeved jacket also called a work clothes, and is generally worn on the outer surface of a shirt, a T-shirt, or the like. The jacket 9 has attachment openings 91 for attaching the blower device 1 at two locations below the back surface (specifically, a portion covering the back side around the waist of the user when worn). That is, two air blowing devices 1 can be attached to the upper garment 9. The attachment opening 91 is formed to have a diameter substantially equal to the diameter of the inner tube 41 (see fig. 4) of the casing 4 of the blower 1. Hereinafter, the peripheral edge of the mounting opening 91 is also referred to as a fan mounting portion 93. The fan mounting portion 93 is preferably reinforced by a reinforcement member so that the air blower 1 can be stably mounted.

Further, a pocket 94 is provided inside the upper garment 9 (for example, a front surface portion (front body)), and the pocket 94 can accommodate a battery holder 96 to which a battery 95 as a power source of the air blower 1 is attached. The pocket 94 is configured as a Flap pocket (Flap pocket) having a cover 941. The cover 941 can be fixed by a hook fastener (also referred to as a snap fastener) 943 that is less likely to be disengaged than the hook fastener.

As shown in fig. 1, a part of the blower 1 is inserted into the attachment opening 91, and the blower 1 is attached to the jacket 9 in a state where the air inlet 457 faces the outside of the jacket 9. The blower 1 sucks air from the outside of the jacket 9 through the air inlet 457, and sends the air to the inside (user side) of the jacket 9. The air sent out to the inside of the upper garment 9 flows through the inside of the upper garment 9 while cooling the body of the user, and flows out to the outside of the upper garment 9 through the neckline and the cuffs. By mounting the blower 1, ventilation can be performed in the jacket 9, and thus, the user can obtain a comfortable working environment.

Next, a schematic configuration of the blower 1 will be described with reference to fig. 3 and 4.

As shown in fig. 3 and 4, the air blowing device 1 includes a main body 3 and a ring member 5. The main body portion 3 is mainly composed of a casing 4, a motor 33 (see fig. 7) and a fan 36 (see fig. 7) accommodated in the casing 4. The housing 4 is configured as a substantially circular housing corresponding to the shape of the fan 36 when viewed from the direction of the rotation axis a1 of the fan 36. A flange 43 projecting radially outward is formed at one end of the housing 4 in the direction of the rotation axis a 1. The annular member 5 is formed as a short cylindrical body that can be attached to and detached from the outer periphery of the housing 4 as a whole. A flange 53 that protrudes radially outward is formed at one end of the annular member 5 (more specifically, an outer tube portion 51 described later) in the direction of the central axis a 2.

In the present embodiment, in a state where the flange 43 is disposed outside the jacket 9, the portion of the main body portion 3 other than the flange 43 is inserted into the inside of the jacket 9 (i.e., the side facing the back of the user) through the attachment opening 91, and the annular member 5 is fitted coaxially into the outer peripheral portion of the main body portion 3 from the inside of the jacket 9 along the predetermined movement path. Accordingly, the blower device 1 is attached to the jacket 9 in a state where the cloth of the jacket 9 (specifically, the fan attachment portion 93 of the attachment opening 91) is sandwiched between the flange 43 of the casing 4 and the flange 53 of the annular member 5. The blower 1 of the present embodiment is configured to be able to adjust the distance between the flange 43 and the flange 53 in two steps according to the thickness of the cloth. This point will be described in detail later.

In the following description, for convenience of explanation, the direction of the blower 1 is defined with reference to the direction of the user when the blower 1 is attached to the jacket 9 and the jacket 9 is worn. Specifically, the extending direction of the rotation axis a1 of the fan 36 and the central axis a2 of the annular member 5 is defined as the front-rear direction, the outer direction of the jacket 9 (i.e., the flange 43 side of the case 4) is defined as the rear side, and the inner direction of the jacket 9 (i.e., the flange 53 side of the annular member 5) is defined as the front side. Therefore, the flange 43 of the housing 4 is hereinafter referred to as a rear flange 43, and the flange 53 of the ring member 5 is referred to as a front flange 53. Further, the clockwise direction D1 and the counterclockwise direction D2 are defined in the circumferential direction around the rotation axis a1 and the center axis a2 with reference to the case where the blower 1 is viewed from the front side.

Next, the detailed configurations of the main body 3 and the annular member 5 of the blower 1 will be described in order.

First, the main body 3 will be described with reference to fig. 3 to 7. As described above, the main body 3 is mainly composed of the motor 33, the fan 36, and the casing 4 accommodating the motor 33 and the fan 36.

As shown in fig. 7, the motor 33 and the fan 36 are coaxially disposed in the housing 4. In the present embodiment, a brush-equipped dc motor is used as the motor 33, but a small-sized high-output brushless motor may be used instead of the motor 33.

The fan 36 is configured as an axial fan having a base portion 361 and three blades 363. The base portion 361 and the blade 363 are integrally molded from resin. The base portion 361 is formed in a bottomed cylindrical shape, is coaxially attached to the motor shaft, and is disposed so as to cover the motor 33. The fan 36 rotates integrally with a motor shaft (not shown) around a rotation shaft a1 in accordance with driving of the motor 33. The configuration of the fan 36 (the shape of the base portion 361, the number of the blades 363, and the like) may be appropriately changed.

Here, with reference to fig. 8 and 9, a battery 95 used as a power source of the motor 33, a battery holder 96 to which the battery 95 is detachably attached, and a power supply line 97 connecting the battery holder 96 and the air blowing device 1 (specifically, the motor 33) will be described. Since the structures of the battery 95 and the battery holder 96 are well known, the structures of some of them will be briefly described while omitting their illustration. For convenience of explanation, the vertical direction in fig. 8 is the vertical direction of the battery 95 and the battery holder 96, the direction indicated by the arrow is the rear side, and the opposite side is the front side.

As shown in fig. 8, the battery 95 is formed in a substantially rectangular parallelepiped shape. The battery 95 has a pair of guide rails 951, terminals (not shown), a latch (not shown), and a button 953. The guide rail 951 is provided in an upper portion of a side surface of the battery 95 so as to extend in a longitudinal direction (front-rear direction) of the battery 95. The stopper pin and the terminal are provided on the upper surface of the battery 95. The stopper pin is biased by a spring (not shown) so as to always protrude upward from the upper surface at the rear end portion of the battery 95, and is configured to be retracted downward from the upper surface by a pressing operation of a button 953 provided on the side surface of the front end portion of the battery 95. The terminals are disposed on the upper surface of the battery 95 adjacent to the retaining pins.

As shown in fig. 8, the battery holder 96 is formed in a substantially rectangular parallelepiped shape. The battery holder 96 is configured to be able to mount the battery 95 and to be electrically connected to the battery 95. Although not shown, the battery holder 96 has a pair of guide grooves, a stopper pin engaging portion, and a terminal. The guide groove extends in the longitudinal direction (front-rear direction) of the battery holder 96, and is configured to be slidably engaged with a guide rail 951 of the battery 95. The stopper pin engaging portion is a concave portion recessed upward, and is configured to be engaged with the stopper pin of the battery 95. The terminals are configured to physically engage the battery 95 with the battery holder 96 as the stopper pins are engaged with the stopper pin engaging portions, and are electrically connected to the terminals of the battery 95. Further, the battery 95 is attached to the battery holder 96 from a rear end portion of the battery holder 96 where the stopper pin is provided (i.e., a side opposite to the side where the button 953 is provided) as indicated by an arrow in fig. 8.

The battery 95 of the present embodiment can be used as a power source of an electric power tool (an electric screwdriver, a hammer drill, or the like) by being attached to the electric power tool.

A clip (clip) 962 having elasticity is provided on the upper surface of the battery holder 96. As described above, the user can mount the battery 95 mounted on the battery holder 96 in the pocket 94 (see fig. 2) of the jacket 9, and can mount the battery 95 on a belt (belt) or the like by using the clip 962. An operation portion 964 and a power supply line 966 are provided on the front surface of the battery holder 96. The operation portion 964 is provided with a button for starting and stopping driving of the motor 33, adjusting the rotation speed of the motor 33, a display lamp for displaying air volume, and the like. In the present embodiment, a controller (typically, a control circuit) for controlling the driving of the motor 33 is mounted on the battery holder 96. A power cord 966 extending from the front surface of the battery holder 96 has a connector (plug) 967 at one end. The operation portion 964 may be provided independently of the battery holder 96, or the controller may be housed in the casing 4, or may be mounted on an operation portion provided independently of the blower device 1.

As shown in fig. 9, in the present embodiment, the power cord 97 is a bifurcated power cord having a connector (jack) 971 at one end and a connector (plug) 973 at the other end of the bifurcated power cord. The connector 971 is configured to be engageable with the connector 967 of the power supply line 97 of the battery holder 96 and to be connectable to the connector 967. The connector 973 is configured to be engageable with a connector (socket) 37 described later and to be electrically connectable to the connector (socket) 37.

Next, the description returns to the main body 3. As shown in fig. 5, the housing 4 includes an inner tube 41 to which the annular member 5 is attached, the rear flange 43, an intake portion 45 in which an intake port 457 is formed, and an exhaust portion 46 in which an exhaust port 467 is formed. In the present embodiment, the inner tube portion 41 and the exhaust portion 46 are integrally formed of resin as one component. The intake portion 45 and the rear flange 43 are integrally formed of resin as a single component. The housing 4 is formed as a single housing by assembling two members. Further, the main body portion 3 is formed by assembling the case 4 in such a state that the motor 33 and the internal components including the fan 36 are housed.

The inner tube 41 is formed in a cylindrical shape, and is disposed coaxially with the motor 33 and the fan 36 (see fig. 7) with the rotation axis a1 of the fan 36 as the center axis. The outer peripheral surface of the inner cylindrical portion 41 is provided with a structure for locking the ring-shaped member 5 in the direction of the rotation axis a1 and in the circumferential direction around the rotation axis a1, which will be described in detail later.

As shown in fig. 5 and 6, the air intake portion 45 is disposed in the inner tube portion 41 so as to cover an air intake side end portion (specifically, a rear end portion) of the fan 36 in the direction of the rotation axis a 1. The air intake portion 45 is formed in a circular shape as a whole when viewed from the direction of the rotation axis a1, and includes a blocking portion 451, a first rib 453, and a second rib 455. The diameter of the air inlet 45 is substantially the same as the inner diameter of the inner tube 41.

As shown in fig. 6, the blocking portion 451 is disposed at a central portion of the air intake portion 45 so as to be substantially perpendicular to the rotation axis a 1. As shown in fig. 1, the blocking portion 451 is a surface portion disposed outside the jacket 9, and therefore can be said to be a surface portion suitable for design. Therefore, in the present embodiment, the blocking portion 451 is configured as a design surface. Specifically, the blocking portion 451 is designed to have a polygonal shape (hexagonal shape in the present embodiment). Further, a design may be applied to the rear surface (surface illustrated in fig. 6) of the blocking portion 451. The first rib 453 is formed in an arc shape and extends radially from the blocking portion 451. The second rib 455 is formed in a shape corresponding to the outer shape (polygon) of the blocking portion 451, is disposed at the radial center portion of the intake portion 45, and connects the first rib 453.

In the present embodiment, the first rib 453 is arranged to be inclined radially outward in the counterclockwise direction D2 (clockwise direction in fig. 6). The first rib 453 is disposed in a direction opposite to the clockwise direction D1, which is the rotation direction of the fan 36. By disposing the first rib 453 in this manner, a decrease in efficiency of the fan 36 when the air volume of the fan 36 decreases can be suppressed, as compared with a case where the first rib 453 is disposed to extend only linearly in the radial direction.

The rear flange 43 is provided to protrude radially outward from the outer periphery of the intake portion 45. In the present embodiment, the opening formed between the first rib 453 and the second rib 455 of the intake portion 45 constitutes an intake port 457. Each air inlet 457 penetrates in the direction of the rotation axis a1, and when the fan 36 rotates, the sucked air flows into the housing 4 from the rear to the front through the air inlet 457.

As shown in fig. 5 and 6, a finger grip recess 432 is provided on the rear surface of the rear flange 43. The finger grip recess 432 is a recess for facilitating gripping of the housing 4 by a user placing a finger in the finger grip recess 432, or rotation of the housing 4 about the rotation axis a1, or pressing of the housing 4 so as not to rotate. Further, a plurality of short protruding portions 433 are provided in the finger grip recess 432, and the protruding portions 433 extend in a direction (radial direction) intersecting the circumferential direction as a finger slip-preventing portion arranged in the finger grip recess 432.

As shown in fig. 3 and 5, the exhaust portion 46 is disposed on the inner tube portion 41 so as to cover an end portion (specifically, a distal end portion) of the fan 36 on the exhaust side in the direction of the rotation axis a 1. The exhaust portion 46 is formed in a dome shape as a whole projecting in a direction (forward) away from the front end portion of the inner tube portion 41 in the direction of the rotation axis a1, and includes a blocking portion 461, a first rib 463, a second rib 464, and a third rib 465.

As shown in fig. 3, the blocking portion 461 is a circular portion arranged at the center of the distal end portion so as to be substantially orthogonal to the rotation axis a 1. The diameter of the blocking portion 461 is set to be approximately half of the inner diameter of the inner tube 41. The first ribs 463 extend radially from the blocking portion 461. The second rib 464 is formed in an annular shape and connects radially outer end portions of the first ribs 463. The third ribs 465 are arranged at equal intervals in the circumferential direction, and connect the second ribs 464 and the distal end portion of the inner tube portion 41 in an arc shape. In the present embodiment, the openings formed between the first rib 463, the second rib 464, and the third rib 465 of the exhaust portion 46 constitute the exhaust ports 467. Each exhaust port 467 penetrates in the direction of the rotation axis a1, and when the fan 36 rotates, air flowing into the housing 4 from the intake port 457 flows out from the rear to the front through the exhaust port 467. Further, of the exhaust ports 467, the exhaust ports 467 formed between the third ribs 465 also penetrate in a direction intersecting the rotation axis a 1. Therefore, the air flowing into the housing 4 from the air inlet 457 flows out in a direction intersecting the rotation axis a1 through the air outlet 467.

As shown in fig. 3, a region where the first to third ribs 463 to 465 are not provided is provided in a part of the exhaust portion 46 in the circumferential direction. This region constitutes a connector arrangement region 38 in which the connector (plug) 973 (see fig. 9) of the power cord 97 is arranged. A connector (socket) 37 electrically connected to the motor 33 is disposed on the side of the rotation axis a1 with respect to the connector disposition region 38. The connector 37 is disposed in a direction orthogonal to the rotation axis a1 (in the radial direction of the main body 3) so that the connector 937 of the power line 97 can be inserted and removed.

Further, the housing 4 is provided with a restricting rib 381, and the restricting rib 381 is configured to restrict the movement of the connector 973 to the outside in the radial direction (in other words, the direction in which the connector 973 is separated from the connector 37). The restricting rib 381 is a rib (wall portion) provided radially outward of the connector arrangement region 38 and configured to be able to abut against the connector 973 arranged in the connector arrangement region 38. The restricting rib 381 can prevent the connector 973 from being detached from the connector 37 by coming into contact with the connector 973 from the radially outer side. Accordingly, when the power cord 97 is moved by the user wearing the jacket 9 with the blower device 1 attached thereto during the work, the possibility of the power cord 97 being detached from the blower device 1 can be reduced. A state in which the connector 973 is connected to the connector 37 is shown in fig. 16 and 17 corresponding to a modification described later.

Next, the ring member 5 will be described with reference to fig. 3 and 4. As shown in fig. 4, the ring member 5 includes an outer tube portion 51, the aforementioned front flange 53, and a finger grip protrusion 55. In the present embodiment, the outer tube 51, the front flange 53, and the finger grip protrusion 55 are integrally formed of resin. In the present embodiment, the annular member 5 is formed of a resin having a different color from the housing 4. Specifically, the annular member 5 is formed substantially entirely of green with a color of which contrast is conspicuous, while the housing 4 is formed substantially entirely of white.

The outer tube portion 51 is fitted to the outside of the inner tube portion 41 of the housing 4. Therefore, the outer tube portion 51 is formed as a short cylindrical body having an inner diameter substantially equal to the outer diameter of the inner tube portion 41 of the housing 4.

As described above, the front flange 53 faces the rear flange 43 of the housing 4 in the front-rear direction (the direction of the rotation axis a1), and is a portion that sandwiches the fan mounting portion 93 of the mounting opening 91 of the jacket 9 with the rear flange 43. The front flange 53 is provided so as to protrude radially outward from one end (specifically, a rear end) of the outer tube portion 51 in the direction of the central axis a 2. In the present embodiment, the outer diameter of the front flange 53 is set to be substantially the same as the outer diameter of the rear flange 43 of the housing 4.

The finger grip protrusion 55 is a protrusion for allowing a user to easily hold the ring member 5 by placing a finger on the finger grip protrusion 55, rotate the ring member 5 around the central axis a2, or press the ring member so as not to rotate. In the present embodiment, the finger grip protrusion 55 is formed in a substantially triangular plate shape, and is provided such that both sides thereof are connected to the outer peripheral surface of the outer tube portion 51 and the front surface of the rear flange 53, and the plate surface thereof intersects with the circumferential direction around the central axis a 2. In the present embodiment, the finger grip projections 55 are provided in plural and arranged apart from each other in the circumferential direction.

As shown in fig. 4, the blower 1 configured as described above further includes a locking mechanism 6, a rotation restriction mechanism 7, and an additional locking mechanism 8. The locking mechanism 6 is a mechanism configured as follows: the movement of the annular member 5 in the direction of the rotation axis a1 relative to the housing 4 is restricted by locking the annular member 5 to the housing 4 in the direction of the rotation axis a1 (the direction of the center axis a 2). The rotation restricting mechanism 7 is a mechanism configured as follows: the ring member 5 is locked to the housing 4 in the circumferential direction around the rotation axis a1, whereby the ring member 5 is restricted from rotating relative to the housing 4. The additional locking mechanism 8 is a mechanism configured as follows: in addition to the locking mechanism 6 and the rotation restricting mechanism 7, the movement of the annular member 5 in the direction of the rotation axis a1 with respect to the housing 4 and the rotation of the annular member 5 about the rotation axis a1 are restricted by the additional locking mechanism 8. The following sequentially describes the structures of these mechanisms.

First, the structure of the locking mechanism 6 will be described with reference to fig. 4 to 7 and 12. In the present embodiment, the locking mechanism 6 includes the guide groove 61 provided in the inner tube portion 41 of the housing 4 and the locking projection 66 provided in the outer tube portion 51 of the annular member 5.

As shown in fig. 4 and 5, the guide groove 61 is a groove formed to be recessed inward in the radial direction from the outer peripheral surface of the inner tube portion 41. The guide groove 61 is formed in a substantially L shape as a whole, and includes a first portion 611 and a second portion 614. The first portion 611 is a portion of the guide groove 61 that extends from the front end of the inner tube portion 41 (the exhaust portion 46 side in the direction of the rotation axis a1) to the rear side flange 43 in the direction of the rotation axis a 1. The second portion 614 is a portion of the guide groove 61 that is continuous from the rear side portion of the first portion 611 and extends in the circumferential direction (in detail, in the clockwise direction D1). In the present embodiment, the guide groove 61 is configured as a groove that defines a path through which a locking protrusion 66 (see fig. 4) of the annular member 5 described later can pass in the process of attaching and detaching the annular member 5 to and from the housing 4. Specifically, in the process of attaching and detaching the annular member 5 to and from the housing 4, the locking projection 66 is inserted into the guide groove 61 and guided along the guide groove 61.

The front end of the first portion 611 constitutes a receiving opening 612 through which the locking projection 66 of the annular member 5 is introduced into the guide groove 61. The wall surface defining the distal end of the second portion 614 (i.e., the surface portion extending radially inward from the outer peripheral surface of the inner tube 41 to the groove bottom) extends in the circumferential direction (specifically, in the clockwise direction D1), and is slightly inclined rearward toward the rear flange 43. This wall surface is referred to as a guide surface 615.

A first locking portion 616 is formed at a circumferential intermediate portion of the guide surface 615, and the first locking portion 616 is a surface substantially orthogonal to the rotation axis a 1. A step 618 is provided slightly rearward (rightward in fig. 5) at a downstream end (lower end in fig. 5) of the first locking portion 616 in the clockwise direction D1. The guide surface 615 extends further to the downstream side from the step 618 and is slightly inclined.

A second locking portion 617 is formed at a terminal end portion (i.e., an end portion farthest from the first portion 611) of the guide surface 615, and the second locking portion 617 is a surface substantially orthogonal to the rotation axis a 1. That is, the second locking portion 617 is arranged on the downstream side of the first locking portion 616 in the clockwise direction D1. The second locking portion 617 is located at a position different from the first locking portion 616 in the direction of the rotation axis a1 (i.e., the facing direction of the front flange 53 and the rear flange 43, the front-rear direction). More specifically, in the direction of the rotation axis a1, the second locking portion 617 is located closer to the rear flange 43 than the first locking portion 616 (further rearward than the first locking portion 616). That is, the distance between the second locking portion 617 and the rear flange 43 in the direction of the rotation axis a1 is shorter than the distance between the first locking portion 616 and the rear flange 43 in the direction of the rotation axis a 1.

As shown in fig. 4, the locking projection 66 is provided so as to project radially inward from the inner peripheral surface of the outer tube portion 51 of the annular member 5. In the present embodiment, the locking projection 66 is formed integrally with the outer tube portion 51 at the rear end of the outer tube portion 51 as a rectangular parallelepiped projection. As described above, since the locking projection 66 is guided in the guide groove 61, the locking projection 66 is set to a size that can be inserted into the guide groove 61.

As shown in fig. 7, in the present embodiment, three guide grooves 61 are provided at three locations at equal intervals in the circumferential direction of the inner tube portion 41. As shown in fig. 12, the three locking projections 66 are provided at three positions at equal intervals in the circumferential direction of the outer tubular portion 51.

As shown in fig. 4, the housing 4 is provided with first position marks 621 and second position marks 627 at positions corresponding to the first locking portion 616 and the second locking portion 617 in the three guide grooves 61, respectively. The first position index 621 and the second position index 627 are provided on the front end surface of the inner tube portion 41, and the front end surface of the inner tube portion 41 is a portion that is not hidden even when the ring member 5 is fitted to the outside of the inner tube portion 41. In the present embodiment, each of the first position index 621 and the second position index 627 has a regular triangle shape with one of the vertices facing radially outward. The first position index 621 and the second position index 627 are marks that make it possible to easily recognize the positions of the first locking portion 616 and the second locking portion 617 from the front even when the ring member 5 is fitted to the outside of the inner tube 41.

On the other hand, the ring-shaped member 5 is marked with a reference protrusion mark 63 at a position corresponding to one of the three locking protrusions 66. The reference projection mark 63 is provided on a flange-like distal end surface of the outer tube portion 51, and the flange-like distal end surface of the outer tube portion 51 is a portion that is not hidden even when the annular member 5 is fitted to the outside of the inner tube portion 41. In the present embodiment, the reference projection mark 63 is configured as a regular triangle mark having one of the apexes facing radially inward. The reference projection mark 63 is a mark that enables the position of the locking projection 66 to be easily recognized from the front (i.e., from the direction in which the first position mark 621 and the second position mark 627 can be visually recognized) even when the annular member 5 is fitted to the outside of the inner tube portion 41.

The reference projection mark 63 functions as a mark for aligning the ring member 5 with the housing 4 in cooperation with the first position mark 621 and the second position mark 627. The reason why the first position mark 621 and the second position mark 627 are provided corresponding to only one of the three guide grooves 61 and the reference protrusion mark 63 is provided corresponding to only one of the three locking protrusions 66 is that the additional locking mechanism 8 described later is provided at only one position in the circumferential direction. The alignment of the ring member 5 and the housing 4 will be described in detail later.

Next, the structure of the rotation restricting mechanism 7 will be described with reference to fig. 4, 7, and 12. In the present embodiment, the rotation restricting mechanism 7 includes a rotation locking portion 71 provided on the inner tube portion 41 of the housing 4 and a locking piece 75 provided on the outer tube portion 51 of the annular member 5.

In the present embodiment, the rotation locking portion 71 includes a first recess 711 and a second recess 716. Each of the first recess 711 and the second recess 716 is a recess formed to be recessed radially inward from the outer peripheral surface of the inner tube 41, and is configured to lock a locking piece 75, which will be described later, in the circumferential direction.

As shown in fig. 4, the first recess 711 is provided as a recess extending forward from the rear flange 53 to the vicinity of the front end of the inner tube 41. As shown in fig. 7, the first recess 711 has a V-shaped cross section perpendicular to the rotation axis a 1. Of the two surfaces defining the first recess 711, the surface 712 located on the upstream side in the clockwise direction D1 extends substantially in the radial direction, while the surface 713 located on the downstream side connects the surface 712 and the outer peripheral surface of the inner tube portion 41 while being gently inclined. The surface 712 functions as an engagement surface that engages with a claw 751 of the locking piece 75 described later. The front face 713 functions as a guide face for guiding the claw 751 disposed in the first recess 711 to disengage in the clockwise direction D1.

As shown in fig. 4, the second recess 716 is provided on the downstream side of the first recess 711 in the clockwise direction D1 and is provided substantially in the center of the inner tube 41 in the direction of the rotation axis a1 as a rectangular recess in a side view. As shown in fig. 7, the second concave portion 716 is also formed to have a rectangular cross section perpendicular to the rotation axis a 1. Of the three surfaces defining the second recess 716, the surface 717 located on the most upstream side in the clockwise direction extends substantially in the radial direction, and functions as an engagement surface with which the claw 751 of the locking piece 75 engages. As shown in fig. 5, the distal end of the second concave portion 716 is located farther from the distal end of the inner tube 41 than the distal end of the first concave portion 711.

Further, in the direction of the rotation axis a1 (front-rear direction), the distance between the tip of the first recess 711 and the tip of the second recess 716 corresponds to the distance between the first locking portion 616 and the second locking portion 617 of the guide groove 61. Further, in the clockwise direction D1, the distance between the upstream side end of the first recess 711 and the upstream side end of the second recess 716 corresponds to the distance between the downstream side end of the first locking portion 616 and the downstream side end of the second locking portion 617 of the guide groove 61.

As shown in fig. 4 and 5, the guide concave portion 73 is provided on the upstream side of the first concave portion 711 in the clockwise direction D1 at the front end portion of the inner tube portion 41. The guide recess 73 is a recess shallower than the first recess 711 and the second recess 716, and is entirely defined by a curved surface so that the center portion of the tip end becomes deepest. The guide recess 73 receives a locking piece 75 (specifically, a claw 751) described later, and is guided to the outer peripheral surface of the inner cylindrical portion 41.

In the present embodiment, the guide concave portion 73, the first concave portion 711, and the second concave portion 716 are arranged in this order from the upstream side in the clockwise direction D1. The three guide recesses 73, the first recess 711, and the second recess 716 are arranged as a set, and the three guide recesses 73, the first recess 711, and the second recess 716 are arranged between the three guide grooves 61.

As shown in fig. 4, the locking piece 75 is a flexible band-shaped member and is formed integrally with the outer tube 51 so as to extend in the circumferential direction of the outer tube 51 of the annular member 5. The upstream end of the locking piece 75 in the clockwise direction D1 is connected to the outer tube 51 and is radially bendable with respect to the outer tube 51. As shown in fig. 12, a claw 751 projecting radially inward is provided on an inner surface (surface on the side of the central axis a 2) of a downstream end (tip end) of the locking piece 75 in the clockwise direction D1. The locking piece 75 is configured to be lockable to the first recess 711 and the second recess 716 via a claw 751. Further, a protrusion (tab)756 protruding outward in the radial direction is provided at the tip end of the locking piece 75. The protrusion 756 is configured to be operated by a user by pressing the protrusion with a finger in the counterclockwise direction D2 or by pinching the protrusion with a finger, and the protrusion 756 releases the engagement of the claw 751 with the first concave portion 711 (surface 712) or the second concave portion 716 (surface 717).

Further, in the circumferential direction, the distance between the locking projection 66 corresponding to the reference projection mark 63 and the claw 751 of the locking piece 75 corresponds to the distance between the receiving opening 612 of the guide groove 61 corresponding to the first position mark 621 and the second position mark 627 and the guide recess 73 located closest to the upstream side of the guide groove 61 in the clockwise direction D1.

Next, the structure of the additional locking mechanism 8 will be described with reference to fig. 4 and 10. In the present embodiment, the additional locking mechanism 8 includes the catch 81 provided on the front side of the inner tube portion 41 of the housing 4 and the catch holding portion 83 provided on the outer tube portion 51 of the ring member 5.

As shown in fig. 10, the catch 81 is formed as a metal member formed in a U shape. Both end portions of the clip 81 are supported by a rectangular parallelepiped base 811, wherein the base 811 is provided on the front end surface of the inner tube portion 41 (the outer peripheral portion of the exhaust portion 46). The catch 81 is rotatable in the direction of the rotation axis a1 (front-rear direction) about a rotation axis extending substantially in the circumferential direction. More specifically, the catch 81 is rotatable between a release position shown in fig. 4 and a fixed position shown in fig. 10. In the release position, the catch 81 is disposed at a position projecting radially inward from the outer diameter of the inner tube 41 as viewed from the direction of the rotation axis a 1. Therefore, when the catch 81 is disposed at the release position, the ring member 5 can be attached to and detached from the outer peripheral portion of the inner tube 41. On the other hand, at the fixed position, the catch 81 is disposed at a position projecting radially outward from the outer diameter of the inner tube 41 as viewed from the direction of the rotation axis a 1.

As shown in fig. 4, the snap retention portion 83 includes a first retention portion 831 arranged on the upstream side in the clockwise direction D1 and a second retention portion 836 arranged on the downstream side in the clockwise direction D1. Further, in the clockwise direction D1, the distance between the upstream side end of the first retaining portion 831 and the upstream side end of the second retaining portion 836 corresponds to the distance between the downstream side end of the first locking portion 616 and the downstream side end of the second locking portion 617 of the guide groove 61.

Each of the first and second retaining

portions

831 and 836 is constituted by a pair of retaining pieces. The pair of locking pieces are formed integrally with the outer tube portion 51, are separated from each other in the circumferential direction, and are provided so as to protrude forward from the front end of the outer tube portion 51. The pair of locking pieces are flexible in the circumferential direction, have claws protruding in directions away from each other at distal end portions (distal end portions), and are configured to be able to hold the catch 81. Specifically, the pair of locking pieces can be inserted into the hook 81 when they are bent in a direction approaching each other in the circumferential direction by an external force. When the pair of locking pieces return to the initial positions, the claws at the distal end hold the hook 81 so as not to be disengaged.

The blower 1 having the above-described configuration is used by being attached to the upper garment 9 (see fig. 1 and 2) by the user. The blower 1 can be attached to and detached from the jacket 9, and can also be attached to and detached from a garment having a fan attachment portion 93 (see fig. 2). The blower 1 of the present embodiment can cope with clothes of various thicknesses by the above-described locking mechanism 6, rotation restriction mechanism 7, and additional locking mechanism 8.

Next, the operation of the blower 1 (in particular, the operation of the locking mechanism 6, the rotation restricting mechanism 7, and the additional locking mechanism 8) when attaching and detaching a garment (e.g., the jacket 9) will be described in detail with reference to fig. 2, 4, and 10 to 14.

When the blower device 1 is attached to the jacket 9, the user first inserts a part of the main body 3 with the ring member 5 removed into the attachment opening 91 of the jacket 9 as shown in fig. 4 (see fig. 2). Specifically, the rear flange 43 is disposed outside the rear body (the fan mounting portion 93), and the inner tube portion 41 and the exhaust portion 46 are inserted into the inside of the jacket 9 through the mounting opening 91. Accordingly, the fan attachment portion 93 (clothing) is disposed on the front surface of the rear flange 43.

The blower 1 of the present embodiment is configured such that the annular member 5 is attached to the casing 4 along a predetermined operation path. The "operation route" refers to a movement route or an operation route that the ring member 5 follows when attached to the housing 4. Alternatively, in other words, the mounting direction of the annular member 5 to the housing 4 may be used. Typically, the operation route is a linear or curved operation directed in a predetermined direction or a combination of a plurality of the operations.

In the present embodiment, the ring member 5 is attached to the housing 4 along an operation path which is a combination of the rotation axis a1 direction and the circumferential direction around the rotation axis a 1. That is, the ring member 5 is attached to the housing 4 by being relatively moved in the direction of the rotation axis a1 with respect to the housing 4 and then being relatively moved in the circumferential direction. More specifically, the ring member 5 is attached to the housing 4 by moving relatively in a direction approaching the housing 4 in the direction of the rotation axis a1 (in other words, in a direction approaching the rear flange 43 by the front flange 53) and then moving relatively in the clockwise direction D1.

The above-mentioned "in order of the direction of the rotation axis a1 and the circumferential direction" means that the movement of the annular member 5 relative to the housing 4 is performed in order of the direction of the rotation axis a1 and the circumferential direction as a whole, although some variation is allowed with respect to the direction of the rotation axis and the circumferential direction. That is, the relative movement of the annular member 5 in the direction of the rotation axis a1 may be accompanied by a slight relative movement of the annular member 5 in the circumferential direction, and the relative movement of the annular member 5 in the circumferential direction may be accompanied by a slight relative movement of the annular member 5 in the direction of the rotation axis a 1. The transition from the direction of the rotation axis a1 to the circumferential direction may be performed as a transition accompanied by a rapid angle change, or may be performed as a gradual continuous transition.

When detached, the ring-shaped member 5 causes the path of action to follow the opposite direction as when installed. That is, the annular member 5 moves relative to the housing 4 in the circumferential direction, and then moves relative to the housing in the direction of the rotation axis a 1. More specifically, the ring member 5 is relatively moved in the counterclockwise direction D2, and then is relatively moved in a direction away from the housing 4 in the direction of the rotation axis a1 (in other words, in a direction away from the rear flange 43 toward the front flange 53), thereby being detached from the housing 4.

As described above, since the inner diameter of the outer tube portion 51 is substantially the same as the outer diameter of the inner tube portion 41, the user cannot fit the annular member 5 into the outer peripheral portion of the inner tube portion 41 of the housing 4 by simply misaligning the locking projection 66 with any of the three receiving openings 612. Thus, the user first positionally aligns the ring member 5 with the housing 4 in the circumferential direction.

Specifically, the user grips the rear flange 43 on the outer side of the jacket 9 with one hand and grips the ring member 5 with the other hand, and aligns the reference projection mark 63 of the ring member 5 with the closest receiving hole 612 on the upstream side of the first position mark 621 of the inner tube portion 41 in the clockwise direction D1. When the positions are aligned, the locking projection 66 corresponding to the reference projection mark 63 can enter the guide groove 61 from the receiving opening 612 (see fig. 5) in the direction of the rotation axis a 1. The other two locking projections 66 can enter the guide groove 61 through the other two receiving openings 612. Further, the claw 751 of the locking piece 75 can enter the guide recess 73. At this time, the catch 81 of the additional locking mechanism 8 is in the state of being disposed at the release position.

The user moves the ring member 5 rearward relative to the housing 4. The annular member 5 is guided rearward along the rotation axis a1 by the locking projection 66 being guided along the first portion 611 of the guide groove 61, and is attached to the housing 4.

When the locking projection 66 moves rearward to the position of the second portion 614, the ring member 5 can move in the clockwise direction D1 with respect to the housing 4 in addition to the direction of the rotation axis a 1. The user rotates the ring member 5 relative to the housing 4 in the clockwise direction D1, thereby causing the latching projection 66 to enter the second portion 614. Further, as the locking projection 66 enters from the first portion 611 to the second portion 614, the claw 751 of the locking piece 75 is disengaged from the guide recess 73 along the curved surface of the predetermined guide recess 73. In a state where the locking piece 75 is bent radially outward, the claw 751 moves in the clockwise direction D1 along the outer peripheral surface of the inner tube 41.

When the locking projection 66 is disposed in the second portion 614, the locking projection 66 is restricted from moving forward in the direction of the rotation axis a1 by the guide surface 615. On the other hand, in the direction of the rotation axis a1 (the front-rear direction (the left-right direction in fig. 11)), the width of the second portion 614 of the guide groove 61 is larger than the width of the locking projection 66, and therefore, the locking projection 66 is allowed to move backward to some extent between the guide surface 615 and the rear flange 43. However, the allowable moving range varies depending on the thickness of the fan mounting portion 93 (cloth) disposed on the front side of the rear flange 43.

The user can rotate the ring member 5 in the clockwise direction D1 according to the thickness of the fan attachment portion 93 of the jacket 9 until the locking protrusion 66 is disposed at the first locking position shown in fig. 11 or the second locking position shown in fig. 13. The first locking position is a position where the tip (left end in fig. 11) of the locking projection 66 abuts against the first locking portion 616. When the locking projection 66 is disposed at the first locking position, the downstream end in the clockwise direction D1 abuts against the step 618 formed on the downstream side of the first locking portion 616. The second locking position is a position where the tip (left end in fig. 13) of the locking projection 66 abuts against the second locking portion 617. When the locking projection 66 is disposed at the second locking position, the downstream end in the clockwise direction D1 abuts the downstream end of the second portion 614. Therefore, the user can easily and smoothly move the locking projection 66 to the first locking position or the second locking position by rotating the ring member 5 so that the distal end surface of the locking projection 66 moves in the clockwise direction D1 along the guide surface 615.

A distance W1 (see fig. 11) between the front flange 53 and the rear flange 43 in the opposite direction (i.e., the direction of the rotation axis a1, the front-rear direction (the left-right direction in fig. 11)) when the locking protrusion 66 is disposed at the first locking position is larger than a distance W2 (see fig. 13) between the front flange 53 and the rear flange 43 when the locking protrusion 66 is disposed at the second locking position. The distance between the front flange 53 and the rear flange 43 corresponds to the thickness of the fan mounting portion 93 (clothing material) that can be sandwiched between the front flange 53 and the rear flange 43. Therefore, the user may rotate the ring member 5 until the locking projection 66 is disposed at the first locking position when the jacket 9 is made of a thick material, or rotate the ring member 5 until the locking projection 66 is disposed at the second locking position when the jacket 9 is made of a thin material.

When the locking projection 66 is disposed at the first locking position, the reference projection mark 63 shown in fig. 4 is disposed at a position facing the first position mark 621 of the inner tube portion 41. Accordingly, the user can easily recognize that the locking projection 66 is disposed at the first locking position. As shown in fig. 12, when the locking projection 66 is disposed at the first locking position, the claw 751 of the locking piece 75 enters the first recess 711 by the restoring force of the locking piece 75, and is engaged with the surface 712. Accordingly, the locking piece 75 is locked by the first recess 711. The catch 81 shown in fig. 4 is disposed at a position facing the first retaining portion 831.

When the thickness of the fan attachment portion 93 is close to the distance W1, the fan attachment portion 93 is stably sandwiched between the front flange 53 and the rear flange 43 when the locking projection 66 is disposed at the first locking position. The locking projection 66 is locked to the first locking portion 616 at the front, thereby restricting the movement of the annular member 5 in the direction of the rotation axis a1 in the direction away from the housing 4 (in other words, in the direction in which the front flange 53 is away from the rear flange 43). Further, the locking piece 75 is locked to the first recess 711 in the circumferential direction, thereby restricting the rotation of the annular member 5 in the circumferential direction (particularly, the counterclockwise direction D2). As shown in fig. 10, when the user rotates the catch 81 to the fixed position to engage with the first retaining portion 831, the movement of the annular member 5 in the direction away from the housing 4 is restricted, and the rotation of the annular member 5 in the circumferential direction is restricted. Accordingly, the ring member 5 is stably fixed to the case 4, and the blower 1 is reliably attached to the jacket 9.

On the other hand, if the jacket 9 is made of a thin material and the thickness of the fan attachment portion 93 is smaller than the distance W1, the movement of the locking projection 66 in the direction of the rotation axis a1 is allowed to a certain extent, and therefore, the attachment of the blower 1 to the jacket 9 is unstable. Therefore, the user rotates the ring member 5 to move the locking projection 66 downstream of the first locking position in the clockwise direction D1. At this time, the claw 751 of the locking piece 75 which has once entered the first recess 711 is disengaged from the first recess 711 along the gently inclined surface, i.e., the surface 713. In a state where the locking piece 75 is bent radially outward, the claw 751 moves in the clockwise direction D1 along the outer peripheral surface of the inner tube 41.

When the locking projection 66 is disposed at the second locking position, the reference projection mark 63 shown in fig. 4 is disposed at a position facing the second position mark 627 of the inner tube 41. Accordingly, the user can easily recognize that the locking projection 66 is disposed at the second locking position. As shown in fig. 14, when the locking projection 66 is disposed at the second locking position, the claw 751 of the locking piece 75 enters the second recess 716 by the restoring force of the locking piece 75, and is engaged with the surface 717. The catch 81 shown in fig. 4 is disposed at a position facing the second holding portion 836.

In the case where the thickness of the fan mounting part 93 is relatively close to the distance W2 between the front flange 53 and the rear flange 43, the fan mounting part 93 is stably sandwiched between the front flange 53 and the rear flange 43. The locking projection 66 is locked to the second locking portion 617 in the front direction, thereby restricting the movement of the ring member 5 in the direction of the rotation axis a1 in the direction away from the housing 4 (in the front direction). Further, the locking piece 75 is locked to the second recess 716 in the circumferential direction, thereby restricting the ring member 5 from rotating in the circumferential direction. When the user engages the catch 81 with the second holding portion 836, the movement of the ring member 5 in a direction away from the housing 4 is restricted, and the rotation of the ring member 5 in the circumferential direction is restricted. Accordingly, the ring member 5 is stably fixed to the case 4, and the blower 1 is reliably attached to the jacket 9.

When the user removes the blower 1 from the jacket 9, the ring member 5 is first removed from the casing 4. The user bends the pair of locking pieces of the first retaining portion 831 or the second retaining portion 836 in a direction to approach each other, thereby moving the catch 81 to the release position. The user further pushes the protrusion 756 of the locking piece 75 locked to the first recess 711 or the second recess 716 in the counterclockwise direction D2 (or pinches the protrusion 756 with fingers and pulls it radially outward), thereby bending the locking piece 75 to release the locking. Accordingly, the annular member 5 is allowed to move in the circumferential direction with respect to the housing 4. The user rotates the ring member 5 in the counterclockwise direction D2 with respect to the housing 4, thereby moving the latching projection 66 from the second portion 614 into the first portion 611. Then, the ring member 5 is moved forward relative to the housing 4, and the locking projection 66 is disengaged from the first portion 611. After the user removes the ring member 5 from the case 4, the user removes the main body 3 from the jacket 9.

When the ring member 5 is attached to and detached from the housing 4, the user can grip the housing 4 and the ring member 5 by placing his or her fingers on the finger grip recess 432 formed in the rear flange 43 or the finger grip protrusion 55 provided on the ring member 5, and relatively rotate both in the circumferential direction or relatively move both in the direction of the rotation axis a 1. Accordingly, the mounting and dismounting operation can be easily performed.

As described above, in the present embodiment, the three locking projections 66 are provided as the locking mechanism 6 for the three guide grooves 61, and when the ring member 5 is attached to and detached from the housing 4, the guide grooves 61 and the locking projections 66 of each pair are set in an engaged relationship. On the other hand, the rotation restricting mechanism 7 is provided with only one locking piece 75 for the three sets of rotation locking parts 71. In addition, the additional locking mechanism 8 is provided with one catch 81 for the pair of catch holding portions 83.

With this configuration, as shown in the above example, the reference projection mark 63 is used for alignment, and when the catch 81 is locked to the first retaining portion 831 or the second retaining portion 836, only a specific one of the three sets of rotation locking portions 71 is used for locking the locking piece 75. However, in the case where the user does not use the additional locking mechanism 8, the locking piece 75 may be locked to any one of the three sets of rotational locking portions 71 without making special alignment using the reference projection mark 63. Further, from this viewpoint, it may be: three reference protrusion marks 63 are provided so as to correspond to all of the three locking protrusions 66, and three sets of first position marks 621 and second position marks 627 are provided so as to correspond to all of the three sets of rotation locking portions 71.

As described above, the user can attach and detach the blower 1 to and from the jacket 9 or the clothes having the fan attachment portion 93. In the present embodiment, the blower device 1 is configured such that the fan mounting portion 93 is sandwiched between the rear flange 43 and the front flange 53 which are disposed opposite to each other in the direction of the rotation axis a1, and the annular member 5 is locked to the housing 4 in the direction of the rotation axis a1 by the locking mechanism 6, thereby preventing the annular member 5 from coming off the housing 4. In the present embodiment, since the first locking portion 616 and the second locking portion 617, which are different from each other in position in the direction of the rotation axis a1, are provided as the locking positions of the locking protrusion 66 in the direction of the rotation axis a1, the air blowing device 1 can cope with a plurality of types of clothes having different thicknesses.

In particular, the first locking portion 616 and the second locking portion 617 are formed on a path through which the locking protrusion 66 can pass (specifically, the guide groove 61 (guide surface 615)) in the process of the user attaching the ring member 5 to the housing 4 along the predetermined operation path. Therefore, the user can lock the locking projection 66 at any appropriate locking position in a series of attachment operations. That is, the user does not need to temporarily detach the ring member 5 from the housing 4 and reattach the ring member in order to change the locking position. In this way, the air blower 1 of the present embodiment can cope with a plurality of kinds of clothes having different thicknesses by easy operation.

The ring member 5 is mounted to the housing 4 by moving relative to the housing 4 along the operation path in the order of the rotation axis a1 direction (rearward) and the circumferential direction (clockwise direction D1). Further, the first locking portion 616 and the second locking portion 617 are provided to the second portion 614 extending in the circumferential direction in the guide groove 61. Therefore, as long as the locking protrusion 66 does not temporarily move in the circumferential direction (counterclockwise direction D2), the locking of the first locking portion 616 or the second locking portion 617 by the locking protrusion 66 in the direction of the rotation axis a1 is not released.

The rotation restricting mechanism 7 restricts the movement of the annular member 5 in the circumferential direction (counterclockwise direction D2) with respect to the housing 4. According to this structure, the possibility of the annular member 5 being detached from the housing 4 can be further reliably suppressed. The locking piece 75 is configured to be locked to the first recess 711 or the second recess 716 in response to a rotational movement of the annular member 5 in the circumferential direction (clockwise direction D1) with respect to the housing 4. Therefore, the user can operate both the locking mechanism 6 and the rotation restricting mechanism 7 only by attaching the ring member 5 to the housing 4 along the predetermined operation path.

In the present embodiment, in addition to the locking mechanism 6 and the rotation restricting mechanism 7, an additional locking mechanism 8 is provided, the additional locking mechanism 8 restricting the movement of the annular member 5 in the direction of the rotation axis a1 with respect to the housing 4 and restricting the rotation of the annular member 5 in the circumferential direction with respect to the housing 4. Therefore, even if the locking mechanism 6 or the rotation restricting mechanism 7 should fail to function, the additional locking mechanism 8 can function, and therefore, the possibility of the annular member 5 being detached from the housing 4 can be more reliably suppressed.

Further, since the color of the ring-shaped member 5 is different from that of the housing 4, the user can visually clearly distinguish the ring-shaped member 5 from the housing 4. Accordingly, it is immediately apparent which member is used and which member is relatively moved, and therefore, the attaching/detaching operation (particularly, the operation of detaching the ring member 5 from the housing 4) is facilitated.

The correspondence between the components of the above-described embodiment and modifications and the components of the present invention is as follows. The upper garment 9 is a structural example corresponding to the "clothes" of the present invention. The air supply device 1 is a configuration example corresponding to the "air supply device" of the present invention. The motor 33 is an example of a structure corresponding to the "motor" of the present invention. The fan 36 is an example of a structure corresponding to the "fan" of the present invention. The case 4 is a configuration example corresponding to the "case" of the present invention. The ring member 5 is a configuration example corresponding to the "mounting member" of the present invention. The rear flange 43 is a configuration example corresponding to the "first clamping portion" of the present invention. The front flange 53 is an example of a structure corresponding to the "second clamping portion" of the present invention. The locking mechanism 6 is a configuration example corresponding to the "locking mechanism" of the present invention. The locking projection 66 is a configuration example corresponding to the "first locking portion" of the present invention. The guide groove 61 or the guide surface 615 is an example of a structure corresponding to the "second locking portion" of the present invention. The first locking position and the second locking position are examples of configurations corresponding to "a plurality of locking positions" of the present invention.

The rotation restricting mechanism 7 is an example of a structure corresponding to the "rotation restricting mechanism" of the present invention. The locking piece 75 is an example of a structure corresponding to the "first rotation restricting portion" of the present invention. The rotation locking portion 71 (the first concave portion 711 and the second concave portion 716) is a configuration example corresponding to the "second rotation restricting portion" of the present invention. The additional locking mechanism 8 is an example of a structure corresponding to the "additional locking mechanism" of the present invention. The finger grip recess 432 and the finger grip protrusion 55 are examples of structures corresponding to the "finger grip recess" and the "finger grip protrusion" of the present invention, respectively. The battery 95, the battery holder 96 and the power line 97 are examples of structures corresponding to the "battery", "battery holder" and "power line" of the present invention, respectively. The connector (socket) 37 of the main body 3 and the connector (plug) 973 of the power line 97 are configuration examples corresponding to the "device-side connector" and the "power-line-side connector" of the present invention, respectively. The restricting rib 381 corresponds to an example of the structure of the "connector restricting member" of the present invention.

The above embodiments are merely examples, and the air blowing device and the clothes according to the present invention are not limited to the illustrated configurations of the air blowing device 1 and the jacket 9. For example, the configurations of the blower 1 and the jacket 9 may be appropriately changed according to the desired additional functions. The blower 10 and the jacket 90 according to the modified example will be described with reference to fig. 15 to 19. In the following, for convenience of explanation, the same components as those of the blower 1 (see fig. 3 to 14) of the above embodiment (some differences include substantially the same components), are denoted by the same reference numerals, and description and illustration thereof are omitted or simplified as appropriate.

First, the air blowing device 10 will be explained. As shown in fig. 15 to 17, the blower 10 includes a main body 30 and a ring member 50. The main body 30 includes a motor 33 and a fan 36 having the same configuration as the main body 3 of the above embodiment. The housing 40 and the annular member 50 of the body 3 have the same structure as the locking mechanism 6 (see fig. 4) of the above-described embodiment, and have the rotation restricting mechanism 7 (see fig. 4) having a slightly different structure.

The rotation restricting mechanism 7 of the present modification is slightly different from the protrusion 756 (see fig. 12) of the above embodiment only in the protrusion 757 of the locking piece 75. Specifically, as shown in fig. 12, the projection 756 of the above embodiment projects to substantially the same position as the edge of the front flange 53, whereas as shown in fig. 15 and 16, in the present modification, the projection 757 projects radially outward from the edge of the front flange 53. With this configuration, when the user detaches the ring member 50 from the housing 40, the user can easily grasp the position of the projection 757 to be operated. The distal end portion of the projection 757 (specifically, a portion that protrudes radially outward from the edge of the front flange 53) is colored differently from the other portions of the ring member 50. This can further improve visibility of the projection 757.

In the present modification, the additional locking mechanism 8 (see fig. 4) is not provided. In this case, as described in the above embodiment, the user may correspond the three locking projections 66 to the three guide grooves 61. Therefore, as shown in fig. 15 and 16, three reference projection marks 63, three sets of first position marks 621 and second position marks 627 are provided in the housing 40 and the ring member 50.

As described in the above embodiment, in the process of attaching the ring member 50 to the housing 40 or detaching the ring member 50 from the housing 40, the user needs to rotate the ring member 50 in the circumferential direction with respect to the housing 40. Therefore, in the present embodiment, the rotation direction display portion 57 is provided on the flange-like distal end surface of the outer tube portion 51 of the annular member 50. The rotation direction display portion 57 includes a first mark 571 (a figure of an arrow and a locked lock) and a second mark 572 (a figure of an arrow and an unlocked lock), wherein the first mark 571 indicates the rotation direction of the ring member 50 when attached; the second mark 572 indicates the rotation direction of the ring member 50 when detached.

As shown in fig. 15 to 17, the housing 40 is provided with an engagement arm 481. The engagement arm 481 is configured to be engageable with a fan holding belt 98 (see fig. 19 and 20) provided in the jacket 90 described later. Specifically, a region where the first rib 463 is not provided is provided in a part of the exhaust portion 46 in the circumferential direction. This region constitutes the belt passing region 48 when the fan holding belt 98 is attached to the engagement arm 481. The engaging arm 481 is a substantially U-shaped portion supported by both sides of the band passing region 48 in the circumferential direction and protruding forward. The fan holding band 98 is attached as will be described later.

In the present modification, the same connector arrangement region 38 as that of the housing 4 of the above-described embodiment is also provided in the housing 40. As shown in fig. 16 and 17, when the connector 973 of the power cord 97 is connected to the connector 37 of the main body 3 and is arranged in the connector arrangement region 38, the restricting rib 381 abuts against the connector 973 from the radially outer side, thereby preventing the connector 973 from coming off.

Next, the jacket 90 configured to be attachable and detachable to and from the blower device 10 will be described. As shown in fig. 18, the jacket 90 has a hood 900 integrally sewn to the front and rear body portions. Therefore, when the blower device 10 is attached to the upper garment 90, the air sent into the upper garment 90 can flow to the hood 900 to cool the head of the user. In addition, the hood 900 can be attached and detached to and from the front and rear bodies by zippers or buttons.

Most of the upper garment 90 including the hood 900 is formed of natural fibers, synthetic fibers or a blended fabric of these fibers (including a fabric which is surface-processed so that air does not easily leak to the outside). On the other hand, a mesh portion 903 using a mesh cloth is provided in a predetermined region of the hood 900, the predetermined region corresponding to a position facing both ears when the user wears the hood 900. Accordingly, the user can easily hear the peripheral sound even when wearing the hood 900. The mesh portion 903 may be covered with a flap (not shown).

As shown in fig. 19, the jacket 90 has mounting openings 91 (fan mounting portions 93) formed in two locations of the back surface portion, as in the jacket 9 (see fig. 1) of the above embodiment. In the present modification, fan holding band 98 is attached to the back surface of jacket 90. The fan holding belt 98 is configured to engage with the engagement arm 481 of the blower 10, thereby preventing the blower 10 from falling off the jacket 90. More specifically, the fan holding band 98 is formed in a band shape from a flexible material (for example, cloth), and one end portion thereof is sewn to the upper garment 90 above the fan attachment portion 93. A pair of hooks (snap fasteners) 981 are attached to both ends of the fan holding band 98. Therefore, as shown in the right side of fig. 19, when the hook 981 is released, one end of the fan holding band 98 becomes a free end, and the fan holding band 98 extends in a band shape. On the other hand, as shown on the left side of fig. 19, when the hook 981 is fastened, the fan holding band 98 is looped and both ends are fixed to the jacket 90.

The manner of use of the fan holding band 98 will be described with reference to fig. 19 and 20. In a state where the hook 981 of the fan holding band 98 is released as shown in the right side of fig. 19, the user attaches the blower device 10 to the fan attachment portion 93 of the jacket 90 as described in the above embodiment. Then, as shown in fig. 20, the fan holding band 98 is passed through the band passing region 48, the engaging arms 481 are wound, the fan holding band 98 is looped in this state, and the hook 981 is fastened, whereby the blower device 10 is attached to the jacket 9. Accordingly, even if the locking of the locking mechanism 6 is released for some reason, the fan holding band 98 can prevent the main body 30 from coming off and falling off from the fan mounting portion 93. Therefore, the possibility of damage to the motor 33 and the fan 36 housed in the casing 40 can be reduced.

When the main body 30 is detached from the fan attachment portion 93, it falls off to the outside of the jacket 90 where the rear flange 43 is disposed. In the present modification, fan holding band 98 attached to the inside of jacket 90 is engaged with engaging arm 481, and engaging arm 481 is provided in a portion of case 40 (specifically, exhaust unit 46) disposed inside jacket 90. Therefore, the fan holding band 98 can more reliably hold the main body portion 30 than in the case where the drop-off prevention mechanism is provided outside the upper garment 90. Further, since the fan holding band 98 is disposed on the side of the annular member 50 away from the casing 40 with respect to the annular member 50, it is possible to prevent the annular member 50 from coming off as well as the main body portion 30.

Further, when the blower 10 is rotated with respect to the jacket 90 in accordance with the driving of the motor 33 and the rotation of the fan 36, an excessive load may be applied to the power cord 97 or the blower 10. Further, the direction of the blocking portion 451 (see fig. 6) formed as the design surface may be different from the original direction. In contrast, the fan holding band 98 can function not only as a drop preventing mechanism but also as a rotation restricting mechanism that restricts the rotation of the blower 10 with respect to the jacket 90.

In the present modification, the engaging arm 481 is a configuration example corresponding to the "engaging portion" of the present invention. The fan holding band 98 having the hook 981 is a configuration example corresponding to the "drop preventing mechanism" of the present invention. The engagement method and the arrangement position of the engagement portion and the drop-off prevention mechanism are not limited to those illustrated in the present modification, and can be appropriately changed. For example, as another example of the structure of the drop-off prevention mechanism, a belt-like member having one end portion attached to the upper garment 90 and the other end portion provided with a hook capable of engaging with the engaging arm 481, a string-like member, and the like are exemplified; one end of the string-like member is attached to the upper garment 90, and the other end of the string-like member can be tied to the engaging arm 481. Further, for example, the following may be used: instead of the engaging arms 481, hooks are used, and instead of the fan holding band 98, a band-shaped member or a string-shaped member having a ring-shaped member, one end of which is attached to the jacket 90 and the other end of which can be engaged with the hooks, is used.

In addition to the above modification, the following modifications can be added. These modifications may be adopted by combining only one or a plurality of them with the

air blowing devices

1 and 10 and the

jackets

9 and 90 shown in the above embodiments and modifications, or the technical means described in the claims.

The structure of the housing 4 and the annular member 5 may be appropriately modified as long as the annular member 5 is detachably mounted to the housing 4. For example, the configurations of intake portion 45 and exhaust portion 46 of case 4 (arrangement of intake port 457 and exhaust port 467, etc.) may be changed. In addition, from the viewpoint of facilitating the attachment/detachment operation, it is preferable that the housing 4 has a cylindrical portion at least in part, and the annular member 5 has a cylindrical portion capable of fitting outside the cylindrical portion of the housing 4.

The structure capable of sandwiching the fan attachment portion 93 (clothing) is not limited to the rear flange 43 and the front flange 53. For example, the rear flange 43 and the front flange 53 do not have to be wound around the entire circumference of the inner tube portion 41 and the outer tube portion 51, and for example, the rear flange 43 and the front flange 53 may be partially cut off in the circumferential direction or may be partially provided with an opening. From the viewpoint of more reliably holding the cloth, the rear flange 43 and the front flange 53 preferably have substantially the same outer diameter, but may have different outer diameters.

The locking mechanism 6 may be configured to lock the annular member 5 to the housing 4 in the direction of the rotation axis a1 to restrict the movement of the annular member 5 relative to the housing 4 in the direction of the rotation axis a1, and the configuration of the locking mechanism provided to each of the housing 4 and the annular member 5 is not limited to the guide groove 61 and the locking projection 66. For example, the arrangement may be reversed such that the locking projection 66 is provided on the outer peripheral surface of the housing 4, and the guide groove 61 is provided on the inner peripheral surface of the annular member 5. The number of the guide grooves 61 and the locking projections 66 is not limited to three, but preferably, a plurality of sets are provided from the viewpoint of more reliable locking.

The shapes of the guide groove 61 and the locking projection 66, the locking position of the locking projection 66, and the like can be appropriately changed. For example, the guide groove 61 may be formed not as a recess but as a through hole. In order to more finely cope with the difference in thickness of the cloth, three or more locking positions at which the locking protrusion 66 is locked in the direction of the rotation axis a1 may be provided.

The operation path (mounting direction) of the annular member 5 when mounted to the housing 4 can be appropriately changed. In the above embodiment, the guide surface 615 of the guide groove 61 is formed to be gradually inclined rearward in the clockwise direction D1 as a whole, and thus the operation of rotating the ring member 5 and the operation of moving the locking projection 66 to the first locking portion 616 or the second locking portion 617 can be smoothly performed without distinction. However, the guide surface 615 may be formed in a stepped shape including surfaces corresponding to the first locking portion 616 and the second locking portion 617. In addition, for example, a second portion extending in the clockwise direction D1 and a third portion extending in the counterclockwise direction D2 may be respectively provided at both sides of the first portion 611. The wall surface defining the tip of the second portion and the wall surface defining the tip of the third portion may be different in position in the direction of the rotation axis a 1. In this case, after the ring member 5 is relatively moved in the direction of the rotation axis a1 (rearward) with respect to the housing 4, the ring member is relatively moved in the clockwise direction D1 or the counterclockwise direction D2 depending on the thickness of the cloth.

For example, as shown in a modification example shown in fig. 21, a locking mechanism 600 including the locking portion 64 and the locking piece 67 may be used instead of the locking mechanism 6. In fig. 21, for simplification, only a partial cross section of the inner tube 410 of the housing 4 and the outer tube 510 of the annular member 5 is schematically shown.

The locking portion 64 is formed by a plurality of locking grooves 640 having a V-shaped cross section, wherein the plurality of locking grooves 640 are formed on the outer peripheral surface of the inner tube portion 410 along the direction of the rotation axis a1 (front-rear direction). Of the two surfaces defining each locking groove 640, a front surface 641 (left surface in fig. 21) is disposed substantially perpendicular to the rotation axis a1, and of the two surfaces defining each locking groove 640, a rear surface 642 (right surface in fig. 21) is disposed so as to be inclined in a direction expanding rearward. Each locking groove 640 defines a locking position of the locking piece 67. On the other hand, the locking piece 67 is formed integrally with the outer tube portion 510 as a flexible belt-like member so as to extend in the direction of the central axis a2 (front-rear direction) of the outer tube portion 510. The locking piece 67 has the same structure as the locking piece 75 (see fig. 12) of the above-described embodiment, and has a claw 671 that can be locked to the locking groove 640 on the inside of the tip end, i.e., the rear end, and a protrusion 672 on the outside. It is preferable that the locking portion 64 and the locking piece 67 are provided in plural numbers in the circumferential direction of the inner tube portion 410 and the outer tube portion 510, respectively.

In the blower device having the locking mechanism 600, the annular member 5 is attached to and detached from the casing 4 by moving relative to the casing 4 in the direction of the rotation axis a 1. That is, unlike the above-described embodiment in which the annular member 5 is relatively moved in the direction of the rotation axis a1 and in the circumferential direction, the annular member 5 does not need to be relatively moved in the circumferential direction with respect to the housing 4. Therefore, in this modification, the rotation restricting mechanism 7 may not be provided. However, in order to more reliably avoid the disengagement of the locking piece 67 from the locking portion 64 in the circumferential direction, for example, it is preferable to provide wall portions on both sides of the locking portion 64 in the circumferential direction, the wall portions abutting against the locking piece 67, and restricting the movement of the locking piece 67 in the circumferential direction.

When the ring member 5 is attached to the housing 4, the user aligns the locking portions 64 and the locking pieces 67 so as to face each other in the radial direction. Then, the outer tube portion 510 is moved backward with respect to the inner tube portion 410, and the locking piece 67 is locked to the appropriate locking groove 640 according to the thickness of the fan mounting portion 93 (cloth). In this way, the user can attach the ring member 5 to the housing 4 only by an easy operation of pressing the ring member 5 in the direction of the rotation axis a1 (specifically, rearward) into an appropriate locking position according to the clothing.

As for the structures of the rotation restricting mechanism 7 and the additional locking mechanism 8, the following modifications and the like can be suitably made, as in the locking mechanism 6: reversing the positional relationship between the rotation locking part 71 and the locking piece 75; the arrangement relationship of the catch 81 and the catch holding portion 83 is reversed. The rotation restricting mechanism 7 and the additional locking mechanism 8 are not necessarily provided. Further, it is preferable that the additional locking mechanism 8, when used together with the locking mechanism 6, at least restricts the rotation of the annular member 5 in the circumferential direction with respect to the housing 4.

The finger grip recess 432 and the finger grip protrusion 55 are preferably provided from the viewpoint of improving operability, but either one or both may be omitted.

The clothes to which the blower 1 can be attached and detached need not be upper clothes such as the upper garment 9, but may be lower clothes such as pants. In the case of a garment having a double-layer structure of an outer layer and an inner layer, the fan attachment portion 93 is provided on the outer layer, and the exhaust portion 46 may be disposed in an internal space between the outer layer and the inner layer when the air blower 1 is attached. In this case, the air sent out to the internal space can be discharged to the outside by appropriately providing the portions (openings) where the outer layer and the inner layer are not sewn, such as the neckline and the armpits. In addition, the position and number of the fan attachment portions 93 on the garment can be changed as appropriate.

In view of the gist of the present invention and the above-described embodiments, the following embodiments are constructed. At least one of the following modes can be adopted in combination with the air blowing device and the clothes described in the above embodiments or modifications, or the claims.

[ means 1]

Can be as follows:

the second locking portion is configured to lock the first locking portion in a direction in which the housing and the attachment member are separated from each other in the rotation axis direction.

[ means 2]

The blower device according to mode 1 may be:

the mounting member is configured to be mounted to the housing by being relatively moved with respect to the housing in the order of an approaching direction opposite to the separating direction in the rotation axis direction and a first direction in a circumferential direction around the rotation axis along the operation path.

[ means 3]

The blower device according to mode 2 may be:

the second rotation restricting portion is configured to lock the mounting member to the housing in a second direction opposite to the first direction in the circumferential direction.

[ means 4]

The blower device according to mode 2 may be:

the first engaging portion is a protrusion,

the second locking portion is a groove or a through hole configured to be able to dispose at least a part of the protrusion inside and to guide movement of the protrusion,

the groove or the through hole includes a first portion and a second portion, wherein the first portion extends in the rotation axis direction; the second portion is continuous from the first portion and extends in the circumferential direction,

the second portion has a plurality of locking portions capable of locking the projection at the plurality of locking positions.

[ means 5]

The blower device according to mode 4 may be:

the second portion extends from the first portion in a predetermined direction in the circumferential direction, and is slightly inclined toward a separation direction in which the housing and the mounting member are separated from each other in the rotation axis direction as going toward the predetermined direction.

[ means 6]

Can be as follows:

the clothing has an opening part, and the clothing is provided with an opening part,

the opening is configured to be insertable into a part of the case in a state where the first clamping portion is disposed outside the garment.

[ means 7]

Can be as follows:

the mounting member is configured to be mounted to the housing by being relatively moved with respect to the housing in the order of an approaching direction in which the housing and the mounting member approach each other in the direction of the rotation axis and a first direction in the circumferential direction around the rotation axis along the operation path.

[ means 8]

Can be as follows:

the at least one locking position is a plurality of locking positions located at different positions from each other in the rotation axis direction.

The air blowing device of the present embodiment can cope with a plurality of kinds of clothes having different thicknesses by easy operation.

[ means 9]

Can be as follows:

the connector regulating member includes a rib or a wall portion provided on a direction side in which the power line side connector is detached with respect to an arrangement region of the power line side connector connected to the device side connector and configured to be capable of coming into contact with the power line side connector arranged in the arrangement region.

[ means 10]

Can be as follows:

the drop prevention mechanism includes a flexible member, a part of which is attached to the garment, and the flexible member is configured to be engageable with the engagement portion.

[ means 11]

The blower device according to claim 10 may be configured such that:

the flexible member is formed in a band or string shape, and one end portion is attached to the clothing, and the other end portion is configured to be attachable to the clothing so that the flexible member is in a loop shape,

the engaging portion is formed as an arm having both ends supported,

the flexible member is configured to prevent the housing from falling off by attaching the other end portion to the garment in a state where the arm is inserted into the loop.

[ description of reference ]

1: an air supply device; 3. 30: a main body portion; 33: a motor; 36: a fan; 361: a base part; 363: a blade; 37: a connector; 38: a connector configuration area; 38: a restricting rib; 4. 40: a housing; 41: an inner tube section; 410: an inner tube section; 43: a flange (rear flange); 432: a finger grip recess; 45: an air intake portion; 453: a first rib; 455: a second rib; 457: an air inlet; 46: an exhaust section; 461: a blocking portion; 463: a first rib; 464: a second rib; 465: a third rib; 467: an exhaust port; 48: a band passing region; 481: a snap-fit arm; 5. 50: an annular member; 51. 510: an outer tubular portion; 53: flanges (forward flanges); 55: finger grip protrusions; 57: a rotation direction display unit; 571: a first mark; 572: a second mark; 6. 600: a locking mechanism; 61: a guide groove; 611: a first portion; 612: a receiving port; 614: a second portion; 615: a guide surface; 616: a first locking part; 617: a second locking part; 618: a step; 621: a first position marker; 627: a second position marker; 63: a reference protrusion mark; 64: a locking part; 640: a locking groove; 641: a surface; 642: a surface; 66: a locking protrusion; 67: a locking piece; 671: claw: 672: a protrusion; 7: a rotation restricting mechanism; 71: a rotation locking part; 711: a first recess; 712: a surface; 713: a surface; 716: a second recess; 717: a surface; 73: a guide recess; 75: a locking piece; 756. 757: a protrusion; 751: a claw; 8: an additional clamping mechanism; 81: buckling; 811: a base; 83: a buckle holding portion; 831: a first holding portion; 836: a second holding section; 9. 90: a coat; 900: a hood; 903: a mesh portion; 91: an installation opening; 93: a fan mounting section; 95: a battery; 951: a guide rail; 953: a button; 96: a battery holder; 962: a clip; 964: an operation section; 966: a power line; 967: a connector; 97: a power line; 971: a connector; 973: a connector; 98: a fan retention strap; 981: hooking and buckling; a1: a rotating shaft; a2: a central axis.

Claims

1. An air blowing device configured to be attachable to and detachable from a garment,

comprises a motor, a fan, a housing, a mounting member, a first clamping portion, a second clamping portion and a locking mechanism,

the fan is driven to rotate by the motor;

the housing accommodates the motor and the fan;

the mounting member is configured to be detachably mounted to the housing along a predetermined operation path;

the first clamping part is arranged on the shell;

the second clamping portion is provided to the attachment member, and is configured to be arranged opposite to the first clamping portion in a rotation axis direction of the fan when the attachment member is attached to the housing, and clamp the cloth of the garment between the second clamping portion and the first clamping portion;

the locking mechanism is configured to lock the mounting member to the housing in the rotation axis direction to restrict movement of the mounting member relative to the housing in the rotation axis direction,

the locking mechanism comprises a first locking part and a second locking part, wherein,

the first locking portion is provided on one of the housing and the attachment member;

the second locking portion is provided on the other of the housing and the attachment member, and is configured to lock the first locking portion in the rotation axis direction at any one of a plurality of locking positions different from each other in the rotation axis direction,

each of the plurality of locking positions is located on a path through which the first locking portion can pass in a process in which the mounting member is mounted to the housing along the operation path.

2. The air supply arrangement according to claim 1,

the mounting member is configured to be mounted to the housing by being relatively moved with respect to the housing along the operation path in the order of the rotation axis direction and the circumferential direction around the rotation axis,

the plurality of latching positions are located on a portion of the path extending in the circumferential direction.

3. The air supply arrangement of claim 2,

the first engaging portion is a protrusion,

4. The air supply arrangement according to claim 3,

5. The air supply arrangement according to claim 1,

further comprising a rotation restricting mechanism configured to restrict rotation of the attachment member with respect to the housing by locking the attachment member to the housing in the circumferential direction,

the rotation restricting mechanism includes a first rotation restricting portion and a second rotation restricting portion, wherein,

the first rotation restricting portion is provided to one of the housing and the mounting member;

the second rotation restricting portion is provided on the other of the housing and the mounting member, and is configured to lock the first rotation restricting portion in the circumferential direction.

6. The air supply arrangement of claim 5,

the second rotation restricting portion is configured to lock the first rotation restricting portion in response to a rotation of the mounting member in the circumferential direction with respect to the housing.

7. The air supply arrangement of claim 6,

the housing includes a cylindrical inner tube portion having the rotation shaft as a center axis,

the mounting member includes a cylindrical outer tube portion fitted to the outside of the inner tube portion,

the second rotation restricting portion is a recess provided in an outer peripheral surface of the inner cylindrical portion,

the first rotation restricting portion is a flexible band-shaped member, and is a locking piece integrally formed with the outer tube portion so as to extend in a circumferential direction of the outer tube portion, and configured to be lockable to the recessed portion,

a protrusion protruding outward in the radial direction is provided at a tip end portion of the locking piece,

the locking piece is bent in response to the operation of the projection by the user to release the locking of the recess.

8. The air supply arrangement of claim 5,

the second rotation restricting portion is configured to be capable of locking the first rotation restricting portion in the circumferential direction at a plurality of rotation restricting positions corresponding to the plurality of locking positions and different in the circumferential direction.

9. The air supply arrangement according to claim 3,

the first locking part is arranged on the inner circumferential surface of the outer tube part or the outer circumferential surface of the inner tube part,

the second locking portion is provided on the outer peripheral surface of the inner tube portion or the inner peripheral surface of the outer tube portion.

10. The air supply arrangement of claim 9,

the first rotation restricting portion is provided on the outer tube portion;

the second rotation restricting portion is provided on the inner cylindrical portion and configured to lock the first rotation restricting portion in the circumferential direction in response to a rotational movement of the mounting member relative to the housing in the circumferential direction,

the second rotation restricting portion is configured to be capable of locking the first rotation restricting portion at a plurality of rotation restricting positions corresponding to the plurality of locking positions and different in the circumferential direction.

11. The air supply arrangement of claim 10,

12. The air supply arrangement of claim 5,

the mounting member is configured to be locked to the housing in at least one of the rotation axis direction and the circumferential direction, and the additional locking mechanism is configured to restrict at least one of movement of the mounting member in the rotation axis direction and rotation in the circumferential direction with respect to the housing.

13. The air supply arrangement according to claim 1,

at least one of the housing and the mounting member has a finger grip protrusion or a finger grip recess.

14. The air supply arrangement according to claim 1,

the mounting part is different in color from the housing.

15. An air blowing device configured to be attachable to and detachable from a garment,

the fan is driven to rotate by the motor;

the housing accommodates the motor and the fan;

the mounting member is configured to be detachably mounted to the housing by being relatively moved with respect to the housing in the order of a rotation axis direction of the fan and a circumferential direction around the rotation axis along a predetermined operation path;

the first clamping part is arranged on the shell;

the second locking portion is provided on the other of the housing and the mounting member, and is configured to lock the first locking portion in the rotation axis direction at least one locking position located at a portion extending in the circumferential direction in a path through which the first locking portion can pass in a process in which the mounting member relatively moves in the circumferential direction.

16. A garment to which the air blowing device according to any one of claims 1 to 15 is detachably attached,

also comprises the air supply device, a battery bracket and a power line, wherein,

the battery supplies power to the motor;

the battery holder is configured to be capable of mounting the battery and being connected to the battery;

the power cord is configured to be able to connect the battery holder and the motor.

17. The garment of claim 16,

the air blowing device has a device side connector connected to the motor,

the power cord has a power cord-side connector connectable to the device-side connector,

the housing has a connector regulating member configured to regulate movement of the power line-side connector in a direction of being detached from the device-side connector when the power line-side connector is connected to the device-side connector.

18. A garment to which the air blowing device according to any one of claims 1 to 15 can be attached and detached,

comprises a cloth, an installation opening, the air supply device and a flexible component, wherein,

the mounting opening is arranged in the clothing material;

the air blowing device is mounted on the clothes in a state that a part of the shell is inserted into the mounting opening and the first clamping part and the second clamping part clamp the clothes;

a portion of the flexible member is attached to the garment,

the casing of the air supply device is provided with an air inlet part, an air outlet part and a clamping arm, wherein,

the air intake portion has a plurality of ribs forming an air intake;

the exhaust portion having a plurality of ribs forming an exhaust port;

the engaging arm is integrally formed of resin with the air discharge portion, and is engageable with a flexible member provided to the clothing.

19. A garment to which the air blowing device of claim 18 can be attached and detached,

the flexible component is arranged above the mounting opening,

the housing has an apparatus-side connector connectable with a power-line-side connector for connecting a battery holder and a power line of the motor,

the engagement arm and the device-side connector are provided on opposite sides of the rotation shaft of the fan in a direction orthogonal to the rotation shaft,

the exhaust part has a recess and a connector restricting member, wherein,

the power line side connector is disposed in the recess when connected to the device side connector;

the connector regulating member is formed integrally with the exhaust unit and regulates the movement of the power line-side connector in a direction in which the power line-side connector is detached from the device-side connector.