Fans and fan-equipped clothing

Abstract

To provide a fan whose case body is difficult to separate in fan-equipped wear. [Solution] The fan 2 comprises a front case part 211 and a rear case part 212 detachable from the front case part 211, the front case part 211 comprises an engagement piece part that regulates relative movement (rotation) in the circumferential direction between the front case part 211 and the rear case part 212, the rear case part 212 comprises a first annular part 2121 formed in an annular shape around the opening, and a case ring 213 integrally molded with the first annular part 2121, the case ring 213 comprises an engaged part that regulates relative movement (rotation) in the circumferential direction between the front case part 211 and the rear case part 212. The engagement piece part comprises a tongue-shaped piece part that extends in the circumferential direction of the flange part 2112, and an engagement part formed at an end part in the extension direction of the tongue-shaped piece part.

Description

[Technical field]

[0001] The present invention relates to a fan and fan-equipped clothing. [Background technology]

[0002] In recent years, fan-equipped clothing for cooling the body has been put to practical use and is rapidly becoming popular. Fan-equipped clothing has a fan attached to a clothing body made of a material with low breathability to draw air into the clothing body. When the fan is operated, a large amount of air is drawn into the clothing body from the fan, circulates along the surface of the wearer's body or underwear worn underneath the clothing body, and is then discharged to the outside from the collar or the like of the clothing body. As the air drawn into the garment body by the fan flows along the surface of the wearer's body or underwear, it evaporates sweat from the body, and the body is cooled by the heat of vaporization generated during evaporation (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2005 / 063065 Summary of the Invention [Problem to be solved by the invention]

[0004] In such fan-equipped clothing, if the fan is exposed on the outside of the clothing (the side facing the outside space opposite the side facing the wearer when worn), problems can arise, for example, such as the clothing being prone to getting wet and causing breakdowns when used in the rain, or the fact that it is fan-equipped clothing being obvious at a glance, giving it an undesirable appearance.

[0005] One possible solution to this problem is to prevent the fan from being exposed to the outside of the fan-equipped garment, for example, by wearing another outer garment over the fan-equipped garment, or by making the garment itself into a two-layer structure so that the part where the fan is attached is covered by a sheet-like member.

[0006] However, if the case body of the fan, which contains an impeller rotated by a motor, is designed to be separable into two parts, a front and a back, so that the interior can be cleaned, there is a risk that the case body will be separated due to unavoidable forces such as an upper body garment colliding with the case body.

[0007] An object of the present invention is to provide a fan whose case body is difficult to separate. [Means for solving the problem]

[0008] In order to solve the above problem, the invention described in claim 1 is as follows: A fan comprising: a case body that can be separated into a first case portion and a second case portion having a three-dimensional shape protruding on a side opposite to the first case portion; and an impeller housed in the case body, the first case portion includes a cylindrical portion, a flange portion protruding outward from an outer periphery of the cylindrical portion, and an engagement means for restricting relative movement of the first case portion and the second case portion along a circumferential direction of the flange portion; The second case portion includes a first annular portion formed annularly around the opening, A case ring is provided which is integrally molded with the first annular portion and has an engaging means which engages with the engaging means to restrict relative movement between the first case portion and the second case portion along the circumferential direction of the flange portion.

[0009] The invention described in claim 2 is the fan described in claim 1, The second case portion has an air intake port on a side surface.

[0010] The invention described in claim 3 is the fan described in claim 1, The case ring is formed of a material harder than the second case portion.

[0011] The invention described in claim 4 is the fan described in claim 3, The case ring is made of ABS resin, The second case portion is made of silicone rubber.

[0012] The invention described in claim 5 is the fan described in claim 1, the engaging means includes a flexible tongue-shaped piece extending along a circumferential direction of the flange portion, one end of which is a fixed end relative to the flange portion and the other end of which is a free end, and an engaging portion provided on the free end side of the tongue-shaped piece, the engaging portion having a convex portion protruding from a surface of the flange portion facing the second case portion and a concave portion that is concave relative to the convex portion, which are aligned along the circumferential direction of the flange portion; The engaged means comprises a recess that is concave relative to the back surface of the case ring facing the flange portion, and a protrusion that is convex relative to the recess, which are arranged along the circumferential direction of the case ring and engage with the engaging portion.

[0013] The invention described in claim 6 is a fan-equipped wear, A fan according to any one of claims 1 to 5; and a wear body having a fan mounting portion for mounting a fan.

[0014] The invention described in claim 7 is the fan-equipped wear described in claim 6, The garment body includes an outer fabric arranged on an outer surface side of the garment body and a lining arranged on an inner surface side of the garment body, The fan mounting portion is formed on the backing, The second case portion is disposed between the outer material and the inner material. Effect of the Invention

[0015] According to the present invention, it is possible to provide a fan whose case body is difficult to separate. [Brief description of the drawings]

[0016] [Figure 1] 1 is a front view of the fan-equipped garment according to an embodiment, showing the first front body opening / closing means of the outer fabric and the second front body opening / closing means of the lining in a closed state. [Diagram 2] 1 is a rear view of the fan-equipped garment according to an embodiment, with the first front body opening / closing means of the outer fabric and the second front body opening / closing means of the lining fabric shown in closed state. [Diagram 3] 1 is a front view of the fan-equipped garment according to an embodiment, with the first front body opening / closing means of the outer fabric open and the second front body opening / closing means of the inner fabric closed. [Figure 4] 1 is a front view of the fan-equipped garment according to an embodiment, showing the first front body opening / closing means of the outer fabric and the second front body opening / closing means of the lining in an open state. [Diagram 5] 2 is a cross-sectional view taken along a cross section parallel to the XZ plane of a portion including a fan 2 and a rear case portion 212 when the fan-equipped garment according to the embodiment is worn by a wearer. FIG. [Figure 6] FIG. 2 is a perspective view of the fan according to the embodiment in an exploded state, as viewed from the air blowing portion side. [Figure 7] FIG. 2 is a perspective view of the fan according to the embodiment in an exploded state, as viewed from the air blowing portion side. [Figure 8] 2 is a perspective view of a front case portion of the fan according to the embodiment, seen from the flange portion side. FIG. [Figure 9] 4 is a side cross-sectional view of a main portion showing a state in which the front case portion and the rear case portion are attached. FIG. [Figure 10] 13 is a side view of a main portion of the front case portion, illustrating an example of an engagement piece portion and a locking portion. FIG. [Figure 11] 11 is a side cross-sectional view of a main part of a rear case part, showing an example of an engaged portion and a locked portion. FIG. [Figure 12] 11 is a perspective view of a main portion of a front case portion, illustrating an example of an engagement piece portion and a locking portion. FIG. [Figure 13] 11 is a side cross-sectional view of a main portion showing an example of an operation for removing the rear case portion from the front case portion. FIG. [Figure 14] 11 is a side cross-sectional view of a main portion showing an example of an operation for removing the rear case portion from the front case portion. FIG. [Figure 15] 11 is a side cross-sectional view of a main portion showing an example of an operation for removing the rear case portion from the front case portion. FIG. [Figure 16] 11 is a side cross-sectional view of a main portion showing an example of an operation for attaching a rear case part to a front case part. FIG. [Figure 17] 11 is a side cross-sectional view of a main portion showing an example of an operation for attaching a rear case part to a front case part. FIG. [Figure 18] 11 is a side cross-sectional view of a main portion showing an example of an operation for attaching a rear case part to a front case part. FIG. [Figure 19] 11 is a side cross-sectional view of a main portion showing an example of an operation for attaching a rear case part to a front case part. FIG. [Figure 20] 11 is a side cross-sectional view of a main portion showing an example of an operation for attaching a rear case part to a front case part. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] A fan and fan-equipped clothing according to an embodiment of the present invention will be described below with reference to Figures 1 to 20. However, the technical scope of the present invention is not limited to the illustrated examples, and various modifications can be made to the embodiment described below without departing from the spirit of the present invention.

[0018] In the following description, the state in which the wearer is wearing the fan-equipped garment 100 is taken as the basis, and the direction in front of the wearer is defined as front, the direction behind the wearer as rear, the direction above the wearer as up, the direction below the wearer as down, the direction to the right of the wearer as right, the direction to the left of the wearer as left, the axis along the front-to-back direction as X-axis, the axis along the left-to-right direction as Y-axis, and the axis along the up-down direction as Z-axis. Further, when describing the fan 2 and the rear case portion 212, the directions will be defined based on the state in which they are attached to the garment body 1.

[0019] [Configuration of one embodiment] As shown in Figures 1 to 5, the fan-equipped wear 100 of this embodiment comprises a wear body 1, a fan 2 for introducing air into the wear body 1, a power supply unit 3 for supplying power to the fan 2, and a connection cable 4 for connecting the power supply unit 3 and the fan 2. The air taken in by the fan 2 into the lining 12 of the wear body 1 (in the space formed between the lining 12 and the body of the wearer W when the fan-equipped wear 100 is being worn) is circulated along the surface of the body of the wearer W or the underwear worn under the wear body 1, and then discharged from an air exhaust port formed in the collar or the like of the wear body 1, thereby evaporating sweat from the body and cooling the body with the heat of vaporization generated during evaporation.

[0020] [(1) Clothing itself] The garment body 1 is the garment portion of the fan-equipped garment 100 excluding the fan 2 , the power supply unit 3 and the connection cable 4 . In addition, the surface of the garment body 1 that faces the wearer when worn is the inner surface of the garment body 1, and the opposite surface is the outer surface of the garment body 1. In addition, with regard to the outer fabric 11 and the lining 12, the surface that faces the wearer when the garment body 1 is worn is the inner surface of the outer fabric 11 or the lining 12, and the opposite surface is the outer surface of the outer fabric 11 or the lining 12.

[0021] As shown in Figures 1 to 5, the garment body 1 is formed to have a two-layer structure including an outer fabric 11 arranged on the outer side of the garment body 1 and a lining 12 arranged on the inner side of the garment body 1.

[0022] 3 to 5, the lining 12 is connected to the outer fabric 11 by sewing or other methods only at a connection portion 13 located at the upper end of the lining 12. Note that the outer fabric 11 and the lining 12 may be detachably attached to each other by using, for example, a hook-and-loop fastener or a wire fastener at the connection portion 13.

[0023] As described above, the lining 12 is connected to the outer fabric 11 only at its upper end and not at its lower end, so that an opening 14 is formed between the lower end of the lining 12 and the outer fabric 11, as shown in Figure 5, connecting the space between the outer fabric 11 and the lining 12 and the external space.

[0024] [a Outer fabric] The outer fabric 11 is the part of the garment body 1 that is arranged on the outer surface thereof, and as shown in Figures 1 to 5, is made of a fabric that is waterproof to the extent that it does not allow rainwater to pass through, and is formed in a so-called poncho shape that covers the upper body of the wearer W with a single piece of fabric without sleeves.

[0025] As shown in Figures 1 to 5, the outer fabric 11 is provided with a hood 111 that covers the head of the wearer W, and is also provided with a first front body opening / closing means 112 on the front body for opening and closing the front of the outer fabric 11 when the wearer W puts on the fan-equipped wear 100. The first front body opening / closing means 112 is formed by providing both ends of the outer fabric 11 located in front of the wearer W when the outer fabric 11 is worn with, for example, a linear fastener or the like, making them detachable.

[0026] [b Lining] The lining 12 is the part of the garment body 1 that is arranged on the inner side, and as shown in Figures 1 to 5, is configured to have the shape of a vest-type upper garment that covers the torso of the wearer W, using fabric that is either non-breathable or has a degree of breathability that allows it to be inflated by introducing air using a fan 2.

[0027] As shown in FIGS. 3 to 5, the lining 12 includes a second front body opening / closing means 121, air leakage prevention means 122, power supply holding means 123, and a fan mounting hole .

[0028] The second front body opening / closing means 121 is a means for opening and closing the front of the lining 12 when the wearer W puts on the fan-equipped wear 100 by making the lining 12 open at the front, and is formed by dividing the front body of the vest-shaped lining 12 into left and right halves at the center in the left-right direction, and providing both sides with, for example, linear fasteners, etc., so that the divided parts can be easily attached and detached, as shown in Figures 3 and 4.

[0029] As shown in Figures 3 to 5, the air leakage prevention means 122 is provided near the lower end of the lining 12 and is a means for preventing air inside the lining 12 from leaking to the outside from the lower end of the lining 12 when the wearer W wears the fan-equipped wear 100. For example, it is formed by providing an elastic member such as an elastic cord near the lower end of the lining 12 so as to go around the body of the wearer W when the second front body opening and closing means 121 is connected.

[0030] The power supply unit holding means 123 is a means for holding the power supply unit 3 in a position where it can supply power to the fan 2 through the connection cable 4, and is formed by a pocket capable of storing the power supply unit 3, as shown in FIG. 4.

[0031] As shown in Figures 4 and 5, the fan mounting hole 124 is a hole that connects the space within the lining 12 (the space formed between the lining 12 and the body of the wearer W when the fan-equipped wear 100 is worn) and the space between the outer fabric 11 and the lining 12, and is formed in the back of the lining 12 at positions corresponding to the left and right sides of the wearer W's waist. The fan mounting hole 124 is formed in a circular shape with a diameter approximately the same as the diameter of the tubular portion 2111 of the front case portion 211 described below. By attaching the fan 2 to the lining 12 so that the tubular portion 2111 passes through the fan mounting hole 124, air in the space between the outer fabric 11 and the lining 12 of the garment body 1 can be taken in through the fan mounting hole 124 into the space within the lining 12.

[0032] [(2) Fans] The fan 2 is a means for introducing air from the space between the outer material 11 and the inner material 12 into the space within the inner material 12 through the fan mounting hole 124, and the necessary power is supplied to the fan 2 from the power supply unit 3 via a connection cable 4, as shown in FIG. 4.

[0033] Exploded perspective views of fan 2 are shown in Fig. 6 to Fig. 8. Note that, for the sake of simplicity, Fig. 6 shows case ring 213 separated into two rings, but in reality, the case ring 213 is attached to rear case part 212 as a single unit as shown in Fig. 7. Fan 2 includes a case body 21, an impeller 22, and a fan mounting ring 23.

[0034] [a case body] The case body 21 houses the impeller 22. The case body 21 is configured to be separable into a front case portion 211 and a rear case portion 212.

[0035] The front case portion 211 is made of, for example, resin, and includes a cylindrical portion 2111 and a flange portion 2112 that protrudes outward from the outer periphery of the cylindrical portion 2111.

[0036] The tubular portion 2111 has a cylindrical shape, and at the front end, which is one end along the axial direction of the cylindrical shape, an air vent 2111a through which air passes and a motor case 2111b to which a motor (not shown) is attached are formed. As shown in Figs. 6 and 7, the outer surface of the tubular portion 2111 is formed with a protrusion 2111c that fits into a recess formed on the inner surface of a fan mounting ring 23 described later, so that the fan mounting ring 23 can be fixed to the outer surface of the tubular portion 2111 as described later. Note that, although Figs. 6 and 7 only show the protrusions 2111c formed at two places on the left side of the tubular portion 2111, a similar protrusion 2111c is also formed at a position opposite to the protrusions on the right side.

[0037] The ventilation opening 2111a is composed of a combination of slats of a predetermined shape, such as a lattice shape or a radial shape, and openings between the slats. The spacing and shape of the slats are set so as to allow air to pass through while preventing foreign matter from entering the tubular portion 2111 through the ventilation opening 2111a.

[0038] The motor case 2111b is configured by providing a convex portion protruding toward the rear end at the radial center of the front end of the cylindrical portion 2111. In the fan 2, a motor is attached to the motor case 2111b, and an impeller 22 is attached to the shaft of this motor as shown in FIG.

[0039] Further, a flange portion 2112 is formed at the rear end, which is the other end along the axial direction, of the cylindrical portion 2111. A case ring 213 is attached to the flange portion 2112, whereby the rear case portion 212 is attached to the front case portion 211.

[0040] The flange portion 2112 has a shape that is connected around the entire circumference in the circumferential direction, and protrudes outward from the outer periphery of the rear end portion of the cylindrical portion 2111. An end face of the flange portion 2112 that faces the rear case portion 212 attached to the front case portion 211 is exposed at the rear end portion of the cylindrical portion 2111. Also, as shown in Fig. 8, a plurality of engagement pieces 5 and locking portions 7, which will be described later, are provided on the end face of the flange portion 2112.

[0041] Returning to FIG. 7, the rear case part 212 covers the rear end part where the flange part 2112 of the front case part 211 is formed. The rear case part 212 includes a first annular part 2121 and a second annular part 2122 formed in an annular shape, a plate part 2123 formed in a circular plate shape, and a plurality of connecting parts 2124 connecting the first annular part 2121, the second annular part 2122, and the plate part 2123, and has a three-dimensional shape protruding to the rear side facing the front case part 211. In addition, the rear case part 212 has a case ring 213 integrally molded on the annular surface on the front side of the first annular part 2121, and an air intake port 2125 for taking in air into the rear case part 212 is formed between the connecting parts 2124. The rear case part 212 is integrally formed entirely from silicone rubber. The material of the rear case part 212 is preferably silicone rubber, but is not limited to this, and it is also possible to use a resin material such as plastic, particularly ABS resin, which is strong and lightweight.

[0042] 7, the first annular portion 2121 is a circular annular member provided on the front side (the side facing the wearer W when the fan-equipped garment 100 is worn) of the rear case portion 212. Note that a shape with an opening in the center is broadly referred to as "annular."

[0043] As shown in FIG. 7, the second annular portion 2122 is formed in a ring shape whose outer diameter is smaller than the outer diameter of the first annular portion 2121, and is arranged so as to be located between the first annular portion 2121 and the plate-shaped portion 2123 in the X-axis direction.

[0044] As shown in FIG. 7, the plate portion 2123 is a circular plate-like member provided on the rear side of the rear case portion 212 (the side opposite to the side facing the wearer W when the fan-equipped garment 100 is worn).

[0045] The connection portions 2124 are members that connect the first annular portion 2121, the second annular portion 2122, and the plate-like portion 2123, and as shown in FIG. 7, a plurality of connection portions 2124 are provided at equal intervals so as to connect these three members.

[0046] As described above, multiple connection portions 2124 are provided at intervals to connect the first annular portion 2121, the second annular portion 2122, and the plate-shaped portion 2123. Therefore, in the portion between the connection portions 2124 on the side of the rear case portion 212, as shown in FIG. 7, an air intake port 2125 is formed which connects the inside of the rear case portion 212 with the outside and allows air to be taken into the rear case portion 212. The side of the rear case part 212 refers to the outer surface of the rear case part 212 other than the surface facing the wearer W when the wearer W is wearing the fan-equipped wear 100 to which the rear case part 212 is attached and the surface formed in a position opposite to that surface.

[0047] In this way, the rear case portion 212 has a three-dimensional structure with the first annular portion 2121, the second annular portion 2122, the plate-shaped portion 2123 and the connecting portion 2124, and air is taken in through the air intake 2125 on the side, so that even if the fan 2 is attached to the lining 12 of the garment body 1 and the rear side is covered by the outer material 11, the intake of air by the fan 2 is not hindered.

[0048] The case ring 213 is a ring-shaped member made of a resin material such as plastic. The case ring 213 is preferably strong and lightweight, and is preferably made of, for example, ABS resin, but is not limited to this.

[0049] Case ring 213 is formed in an annular shape with an outer diameter substantially equal to the inner diameter of first annular portion 2121, and has a plurality of holes 213a on its outer periphery, and in the manufacturing process of rear case portion 212, liquid silicone rubber that will become first annular portion 2121 of rear case portion 212 flows into holes 213a and solidifies to fit together, thereby being molded integrally with case ring 213. In this example, a case is described in which rear case portion 212 is made of silicone rubber and case ring 213 is made of a resin material such as plastic, but if rear case 212 and case ring 213 are made of the same material, for example ABS resin, they can also be produced by a conventional molding method, in which case the plurality of holes 213a on the outer periphery of case ring 213 provided in this example are not necessary.

[0050] [b Impeller] 8, impeller 22 is a propeller type, and is attached to the rotation shaft (X-axis) of the motor inside motor case 2111b. Impeller 22 rotates by the rotation drive of the motor, and sends out air taken in from the rear side toward the front side.

[0051] [c Fan mounting ring] The fan mounting ring 23 is a ring-shaped member formed integrally from a resin material such as plastic, and is attached so as to cover the outer surface of the tubular portion 2111 of the front case portion 211, as shown in Figures 6 and 7. As described below, the fan mounting ring 23 is used to attach the fan 2 to the garment body 1 by sandwiching the area surrounding the fan mounting hole 124 in the lining 12 of the garment body 1 between one end of the fan mounting ring 23 and the flange portion 2112 of the front case portion 211.

[0052] The fan mounting ring 23 is formed in a ring shape that has an elliptical shape when viewed in the direction of the rotation axis (X-axis direction) of the propeller 215 inside the front case part 211. The fan mounting ring 23 is also formed so that the length of its inner circumference is longer than the length of its outer circumference of the cylindrical part 2111 of the front case part 211, and the minor axis of the inner circumference is smaller than or equal to the diameter of the cylindrical part 2111. In this case, the major axis of the inner circumference of the fan mounting ring 23 is larger than the diameter of the cylindrical part 2111.

[0053] Also, at an opposing position on the inner surface side of the fan mounting ring 23 in the short diameter direction, a recess (not shown) that fits with a protrusion 2111c formed on the outer surface side of the cylindrical portion 2111 of the front case portion 211 is formed.

[0054] As described above, the fan mounting ring 23 is formed into a ring shape that has an elliptical shape when viewed from the X-axis direction, but when pressure is applied from the outer surface side in the major axis direction, the minor axis direction bulges outward, deforming the fan mounting ring 23 into a perfect circle. Furthermore, when the force applying pressure from the outer surface side in the major axis direction is released, the fan mounting ring 23 returns to its original elliptical shape. Utilizing this, the elliptical-shaped fan mounting ring 23 is pressed from the outer surface in the long diameter direction, causing it to bend and deform into a perfect circle, and the fan mounting ring 23 is then placed over the cylindrical portion 2111 so that the position of the convex portion 2111c of the cylindrical portion 2111 overlaps the position of the concave portion of the fan mounting ring 23.The pressure on the fan mounting ring 23 is then released, and the fan mounting ring 23 can be attached to the cylindrical portion 2111 of the front case portion 211. At this time, as described below, the fan 2 can be attached to the garment body 1 by sandwiching the area surrounding the fan mounting hole 124 in the lining 12 of the garment body 1 between one end of the fan mounting ring 23 and the flange portion 2112 of the front case portion 211.

[0055] [2 Mounting structure] The mounting structure of the front case part 211 and the rear case part 212 will be described with reference to Fig. 9 to Fig. 12. As shown in Fig. 8, the front case part 211 has an engaging piece part 5 that restricts the relative movement (rotation) between the front case part 211 and the rear case part 212 in the circumferential direction. Also, as shown in Fig. 6, the case ring 213 integrally molded with the rear case part 212 has an engaged part 6 that restricts the relative movement (rotation) between the front case part 211 and the rear case part 212 in the circumferential direction.

[0056] 8, the front case part 211 includes a locking part 7 that restricts relative movement between the front case part 211 and the rear case part 212 in the axial direction. Also, as shown in FIG. 6, the case ring 213 of the rear case part 212 includes a locked part 8 that restricts relative movement between the front case part 211 and the rear case part 212 in the axial direction.

[0057] In this example, the engaging pieces 5 are provided at four locations along the circumferential direction of the flange portion 2112 of the front case portion 211. The engaged portions 6 are provided at four locations along the circumferential direction on the front side of the annular surface of the case ring 213, corresponding to the positions of the engaging pieces 5. The locking portions 7 are provided at four locations along the circumferential direction of the flange portion 2112 of the front case portion 211, adjacent to the engaging pieces 5. The locked portions 8 are provided at four locations along the circumferential direction on the front side of the annular surface of the case ring 213, adjacent to the engaged portions 6, corresponding to the positions of the locking portions 7.

[0058] 9, the engaging piece 5 is an example of an engaging means, and includes a tongue-shaped piece 51 extending circumferentially around the flange 2112, and an engaging portion 52 formed at an end of the tongue-shaped piece 51 in the extending direction. The engaging piece 5 is configured such that the tongue-shaped piece 51 and the engaging portion 52 are integral with the flange 2112, and one end of the tongue-shaped piece 51 is connected to the flange 2112. As a result, the base end of the tongue-shaped piece 51 connected to the flange 2112 becomes a fixed end 53 with respect to the flange 2112.

[0059] 12, the engagement piece 5 has a slit 54 formed between the tongue-shaped piece 51 and the tubular portion 2111 along the circumferential direction of the flange portion 2112 from the fixed end 53 of the tongue-shaped piece 51 to the end in the extension direction of the tongue-shaped piece 51. As a result, the end in the extension direction of the tongue-shaped piece 51 of the engagement piece 5 becomes a free end 55.

[0060] As described above, the front case portion 211 is made of resin, and the engagement piece portion 5 is configured such that the tongue-shaped piece portion 51 can bend in the thickness direction of the flange portion 2112 by elastic deformation.

[0061] The engaging portion 52 is provided on the free end 55 side of the tongue-shaped piece portion 51. As shown in Fig. 10, the engaging portion 52 has a concave-convex shape in which a plurality of convex portions 52a protruding from an end face of the flange portion 2112 and a plurality of concave portions 52b concave relative to the convex portions 52a are arranged along the circumferential direction of the flange portion 2112. In the engaging portion 52, the cross-sectional shape of the convex portions 52a is triangular, and the cross-sectional shape of the concave portions 52b is an inverted triangle. As shown in Fig. 12, the engaging portion 52 has a guide surface 52c that bends the tongue-shaped piece portion 51 by being pressed against the engaged portion 6, which is formed by the inclined surfaces of the convex portions 52a and the inclined surfaces of the concave portions 52b.

[0062] When the front case portion 211 is viewed from the flange portion 2112 side, the engagement piece portion 5 has a tongue-shaped piece portion 51 extending clockwise from the fixed end 53 as indicated by the arrow C1, and an engagement portion 52 is provided at the free end 55, which is the end portion in the extending direction of the tongue-shaped piece portion 51.

[0063] As a result, the tongue-shaped piece portion 51 of the engagement piece portion 5 bends due to elastic deformation in the thickness direction of the flange portion 2112, and the convex portion 52a of the engagement portion 52 is displaced from an engagement position where it protrudes from the end face of the flange portion 2112 to a retracted position where it is approximately flush with the end face of the flange portion 2112. Note that the engagement piece portion 5 is configured such that the back surface of the tongue-shaped piece portion 51 is approximately flush with the back surface of the end face of the flange portion 2112 when the convex portion 52a of the engagement portion 52 is in the engagement position where it protrudes from the end face of the flange portion 2112.

[0064] The engaged portion 6 is provided on the rear side of the annular surface of the case ring 213 that faces the flange portion 2112 of the front case portion 211 when the rear case portion 212 is attached to the front case portion 211 .

[0065] The engaged portion 6 has an uneven shape in which a plurality of recesses 61a that are concave relative to the annular surface on the back side of the case ring 213 and a plurality of protrusions 61b that are convex relative to the recesses 61a are arranged along the circumferential direction. The engaged portion 6 has a cross-sectional shape of the recesses 61a that is an inverted triangle and a cross-sectional shape of the protrusions 61b that is a triangle, and the uneven shape matches the engaging portion 52 of the front case portion 211. The engaged portion 6 has a guide surface that bends the tongue-shaped piece portion 51 by pressing the engaging portion 52 of the engaging piece portion 5 with the inclined surfaces of the recesses 61a and the inclined surfaces of the protrusions 61b.

[0066] The locking portion 7 is an example of a locking means, and protrudes in an inverted L shape from the end face of the flange portion 2112. The locking portion 7 extends counterclockwise as indicated by the arrow C2 when the front case portion 211 is viewed from the flange portion 2112 side. An opening 71 is formed between the locking portion 7 and the engagement portion 52 of the engagement piece portion 5.

[0067] The locked portion 8 is an example of a locked means, and protrudes from the engaged portion 6 along the circumferential direction on the back side of the annular surface of the case ring 213. The locked portion 8 has a thickness approximately equal to the gap between the locking portion 7 and the end face of the flange portion 2112, and when the rear case portion 212 is attached to the front case portion 211, it enters the gap between the locking portion 7 and the end face of the flange portion 2112 from the opening 71 between the locking portion 7 and the engagement piece portion 5.

[0068] The locked portion 8 includes a guide portion 81. The guide portion 81 is configured by providing a slope on the tip of the locked portion 8 that comes into contact with the locking portion 7 when the rear case portion 212 is attached to the front case portion 211.

[0069] The case ring 213 has a locking portion operating space 213b in which the locking portion 7 of the front case part 211 can move when the rear case part 212 is attached to the front case part 211. The locking portion operating space 213b is configured by providing an opening that is connected to the locked part 8 along the circumferential direction on the back side of the annular surface of the case ring 213.

[0070] [3 Attachment / detachment operation] Figures 13 to 15 are side cross-sectional views of key parts showing an example of an operation for removing rear case part 212 from front case part 211, and Figures 16 to 20 are side cross-sectional views of key parts showing an example of an operation for attaching rear case part 212 to front case part 211.

[0071] To remove the rear case part 212 from the front case part 211, a force is applied to rotate the rear case part 212 counterclockwise, as indicated by an arrow C2, relative to the front case part 211, as shown in FIG.

[0072] The engaging portion 52 of the engaging piece portion 5 of the front case portion 211 and the engaged portion 6 of the case ring 213 contact each other at guide surfaces 52c and 61c, respectively, where the convex portion 52a and the concave portion 52b, and the concave portion 61a and the convex portion 61b are inclined with respect to the rotational direction of the rear case portion 212 relative to the front case portion 211.

[0073] As a result, when a force is applied to rotate the rear case part 212 counterclockwise relative to the front case part 211 as indicated by arrow C2, a force is generated that causes the engaged part 6 of the rear case part 212 to push the engaging part 52 of the engaging piece part 5 of the front case part 211 in the axial direction of the tubular part 22.

[0074] 14, the tongue-shaped piece portion 51 of the engaging piece portion 5 is bent in a direction in which the engaging portion 52 is retracted from the engaged portion 6, and the engaging portion 52 of the engaging piece portion 5 is disengaged from the engaged portion 6. Thus, the rear case portion 212 can be rotated counterclockwise with respect to the front case portion 211 as indicated by the arrow C2.

[0075] When the rear case part 212 is further rotated counterclockwise as indicated by the arrow C2 with respect to the front case part 211, the locked part 8 of the rear case part 212 is released from the locking part 7 of the front case part 211, as shown in Fig. 15. This allows the rear case part 212 to be removed from the front case part 211.

[0076] To attach the rear case part 212 to the front case part 211, as shown in Figure 16, the locking part 7 of the front case part 211 is inserted into the locking part operating space 213b of the case ring 213, and the rear case part 212 is rotated clockwise relative to the front case part 211 as indicated by the arrow C1.

[0077] 17, when the rear case part 212 is rotated clockwise as indicated by the arrow C1 with respect to the front case part 211, the locked part 8 of the case ring 213 enters the opening 71 between the locking part 7 and the engagement piece part 5 of the front case part 211, and the guide part 81 of the locked part 8 comes into contact with the locking part 7. Since the locked part 8 and the locking part 7 come into contact with each other at the inclined surface of the guide part 81, when the rear case part 212 is rotated clockwise as indicated by the arrow C1 with respect to the front case part 211, a force is generated that causes the locked part 8 and the engaged part 6 of the case ring 213 to press the engagement part 52 of the engagement piece part 5 of the front case part 211 in the axial direction of the cylindrical part 22.

[0078] 18, the tongue-shaped piece portion 51 of the engaging piece portion 5 bends in a direction in which the engaging portion 52 retreats from the engaged portion 6, and the rear case portion 212 can be rotated clockwise as indicated by arrow C1 relative to the front case portion 211. When the rear case portion 212 is further rotated clockwise as indicated by arrow C1 relative to the front case portion 211, the engaged portion 8 and the engaging portion 7 come into contact with each other at the inclined surface of the guiding portion 81, so that the case ring 213 moves in a direction approaching the front case portion 211, and the engaged portion 8 of the case ring 213 enters between the engaging portion 7 of the front case portion 211 and the flange portion 2112, as shown in FIG.

[0079] With the locked portion 8 of the case ring 213 inserted between the locking portion 7 of the front case portion 211 and the flange portion 2112, when the rear case portion 212 is further rotated clockwise relative to the front case portion 211 as indicated by arrow C1, the convex portion 52a of the engaging portion 52 of the engaging piece portion 5 of the front case portion 211 and the concave portion 61a of the engaged portion 6 of the case ring 213 are aligned, and the concave portion 52b of the engaging portion 52 of the engaging piece portion 5 of the front case portion 211 and the convex portion 61b of the engaged portion 6 of the case ring 213 are aligned.

[0080] As a result, the tongue-shaped piece portion 51 of the engaging piece portion 5 elastically restores in the direction in which the engaging portion 52 approaches the engaged portion 6, and as shown in Figure 20, the convex portion 52a of the engaging portion 52 fits into the concave portion 61a of the engaged portion 6, and the concave portion 52b of the engaging portion 52 fits into the convex portion 61b of the engaged portion 6, thereby engaging the engaging portion 52 of the engaging piece portion 5 with the engaged portion 6.

[0081] Therefore, the front case part 211 and the rear case part 212 are attached in a state in which relative movement (rotation) between the front case part 211 and the case ring 213 of the rear case part 212 in the circumferential direction of the flange part 2112 is restricted. Furthermore, by inserting the locked part 8 of the case ring 213 between the locking part 7 of the front case part 211 and the flange part 2112, the locked part 8 is locked to the locking part 7, and the front case part 211 and the rear case part 212 are attached in a state in which relative movement between the front case part 211 and the rear case part 212 in the axial direction is restricted.

[0082] The tongue-shaped piece portion 51 of the engagement piece portion 5 extends in the circumferential direction of the flange portion 2112. This makes it easier for the tongue-shaped piece portion 51 to be elastically deformed by relative movement (rotation) between the front case portion 211 and the rear case portion 212 along the circumferential direction of the flange portion 2112. However, it is necessary to prevent the engagement between the engagement portion 52 of the front case portion 211 and the engaged portion 6 of the case ring 213 from being accidentally released.

[0083] Thus, when the front case part 211 is viewed from the flange part 2112 side, the tongue-shaped piece part 51 of the engagement piece part 5 extends clockwise as indicated by the arrow C1 from the fixed end 53. The tongue-shaped piece part 51 has a free end 55 on the downstream side in the direction in which the engagement part 52 of the engagement piece part 5 engages with the engaged part 6 due to relative movement (rotation) between the front case part 211 and the rear case part 212 along the circumferential direction of the flange part 2112. The engagement part 52 is provided at the free end 55, which is the end part in the extension direction of the tongue-shaped piece part 51.

[0084] As a result, it is easier to elastically deform the tongue-shaped piece portion 51 when rotating the rear case portion 212 clockwise relative to the front case portion 211 as indicated by arrow C1 to attach the rear case portion 212 to the front case portion 211 than when rotating the rear case portion 212 counterclockwise relative to the front case portion 211 as indicated by arrow C2 to remove the rear case portion 212 from the front case portion 211.

[0085] Therefore, the rear case part 212 can be removed from the front case part 211 while preventing the engagement between the engagement part 52 of the front case part 211 and the engaged part 6 of the case ring 213 from accidentally coming loose, making it easy to clean the inside of the fan 2.

[0086] Furthermore, with the fan 2 attached to the garment body 1, the peripheral edge of the fan mounting hole 124 is clamped between the end face of the fan mounting ring 23 and the back surface of the flange portion 2112, and the tongue-shaped piece portion 51 of the engagement piece portion 5 exposed on the back surface of the flange portion 2112 contacts the peripheral edge of the fan mounting hole 124. As a result, when the rear case portion 212 is rotated counterclockwise relative to the front case portion 211 in order to remove the rear case portion 212 from the front case portion 211 with the fan 2 attached to the garment body 1, the tongue-shaped piece portion 51 of the engagement piece portion 5 is prevented from bending by the peripheral edge of the fan mounting hole 124.

[0087] Therefore, when the fan 2 is attached to the garment body 1, the rear case part 212 is prevented from being removed from the front case part 211, and when power can be supplied to the fan 2, the rear case part 212 is prevented from being removed from the front case part 211.

[0088] In this example, the engaging pieces 5 and the locking parts 7 are provided at four locations along the circumferential direction of the flange part 2112 of the front case part 211, and the engaged parts 6 and the locked parts 8 are provided at four locations along the circumferential direction on the back side of the annular surface of the case ring 213, but the numbers are not limited to this. Also, among the multiple pairs of engaging pieces 5 and locking parts 7, one or two locations may be provided with only the locking parts 7 without the engaging pieces 5, and the corresponding pair of engaged parts 6 and locked parts 8 may also be provided with only the locked parts 8 without the engaged parts 6.

[0089] [4. Effects of the embodiment] As described above, the fan 2 according to this embodiment comprises a case body 21 which can be separated into a front case portion 211 which is a first case portion and a rear case portion 212 which is a second case portion, and an impeller 22. The first case portion comprises a cylindrical portion 2111, a flange portion 2112 which protrudes outward from the outer periphery of the cylindrical portion 2111, and an engaging piece portion 5 which is an engaging means for regulating the relative movement of the first case portion and the second case portion along the circumferential direction of the flange portion 2112. The second case portion comprises a first annular portion 2121 which is formed in a ring shape around the opening. The first annular portion 2121 is integrally molded with a case ring 213 which comprises an engaged portion 6 which is an engaged means for regulating the relative movement of the first case portion and the second case portion along the circumferential direction of the flange portion 2112 by engaging with the engaging means. According to this configuration, when the front case part 211 and the rear case part 212 of the fan 2 are engaged, circumferential movement is restricted, so that the case body 21 is less likely to separate even if the fan 2 is subjected to an unavoidable force from the outside while the fan 2 is attached to the garment main body 1. More specifically, for example, in the case of fan-equipped clothing 100, the clothing body 1 has a two-layer structure having an outer layer 11 and an inner layer 12, and the fan 2 attached to the inner layer 12 is not exposed to the outside, so that the case body is less likely to separate even when a force is applied from the outer layer 11 in a direction perpendicular to the circumferential direction.

[0090] In addition, the second case portion of the fan 2 has an air intake 2125 on the side surface. With this configuration, even if the rear end portion of the second case portion is covered with the outer material 11, air can be taken in without any problems.

[0091] Moreover, the case ring 213 is formed of a material harder than the second case portion. Specifically, the case ring 213 is formed of ABS resin, and the second case portion is formed of silicone rubber. This configuration ensures sufficient strength when attaching the second case part to the first case part. Also, even if the second case part receives a force from outer material 11, damage to the second case part, which is softer than case ring 213, is suppressed.

[0092] The engaging means further comprises a flexible tongue-shaped portion 51 extending along the circumferential direction of the flange portion 2112, one end of which is a fixed end 53 relative to the flange portion 2112 and the other end of which is a free end 55, and an engaging portion 5 provided on the side of the free end 55 of the tongue-shaped portion 51, the engaging portion 5 having a convex portion 52a protruding from the surface of the flange portion 2112 facing the second case portion and a concave portion 52b which is concave relative to the convex portion 52a, which are aligned along the circumferential direction of the flange portion 2112.The engaged means comprises an engaged portion 6 having a concave portion 61a which is concave relative to the back surface of the case ring 213 facing the flange portion 2112, and a convex portion 61b which is convex relative to the concave portion 61a, which are aligned along the circumferential direction of the case ring 213 and engage with the engaging portion. According to this configuration, the rear case part 212 can be removed from the front case part 211 while preventing unnecessary disengagement between the engagement piece part 5 of the front case part 211 and the engaged part 6 of the rear case part 212, making it easy to clean the inside of the fan 2.

[0093] In addition, the garment body 1 comprises an outer fabric 11 arranged on the outer side of the garment body 1 and a lining 12 arranged on the inner side of the garment body 1, the fan 2 is attached to the lining 12, and the rear case part 212 is arranged between the outer fabric 11 and the lining 12. This makes it possible for the outer fabric 11 to cover the outside of the fan 2 and prevent rain, etc. from entering through the air intake 2125, while the rear case part 212 ensures an air flow path to the air intake 2125. [Explanation of symbols]

[0094] 100 Fan-equipped clothing 1. Clothing 11 Outer material 12 Lining 124 Fan mounting hole (fan mounting part) 2 Fans 21 Case body 211 Front case part (first case part) 2111 Cylindrical part 2112 Flange part 212 Rear case part (second case part) 2121 First Circular Section 2125 Air Intake 213 Case Ring 5 Engagement piece portion (engagement means) 51 Tongue part 52 Engagement part 52a Convex part 52b Recess 53 Fixed end 55 Free end 6 Engaged part (engaged means) 61a Recess 61b Convex part

Claims

1. A fan comprising: a case body that can be separated into a first case portion and a second case portion having a three-dimensional shape protruding on a side opposite to the first case portion; and an impeller that is housed in the case body, the first case portion includes a cylindrical portion, a flange portion protruding outward from an outer periphery of the cylindrical portion, and an engagement means for restricting relative movement of the first case portion and the second case portion along a circumferential direction of the flange portion; The second case portion includes a first annular portion formed annularly around the opening, A fan comprising a case ring integrally molded with the first annular portion and having an engaging means that engages with the engaging means to restrict relative movement between the first case portion and the second case portion along the circumferential direction of the flange portion.

2. The fan according to claim 1 , wherein the second case portion has an air intake on a side surface thereof.

3. The fan according to claim 1 , wherein the case ring is formed of a material harder than the second case portion.

4. The case ring is made of ABS resin, The fan according to claim 3 , wherein the second case portion is made of silicone rubber.

5. the engaging means includes a flexible tongue-shaped piece extending along a circumferential direction of the flange portion, one end of which is a fixed end relative to the flange portion and the other end of which is a free end, and an engaging portion provided on the free end side of the tongue-shaped piece, the engaging portion having a convex portion protruding from a surface of the flange portion facing the second case portion and a concave portion that is concave relative to the convex portion, which are aligned along the circumferential direction of the flange portion; The fan described in claim 1, wherein the engaging means comprises a concave portion that is concave relative to the back surface of the case ring facing the flange portion, and a convex portion that is convex relative to the concave portion, which are arranged along the circumferential direction of the case ring and engage with the engaging portion.

6. A fan according to any one of claims 1 to 5; The fan-equipped garment comprises a garment body having a fan mounting part for mounting a fan.

7. The garment body includes an outer fabric arranged on an outer surface side of the garment body and a lining arranged on an inner surface side of the garment body, The fan mounting portion is formed on the backing, The fan-equipped garment according to claim 6 , wherein the second case portion is disposed between the outer fabric and the inner fabric.

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