Fans, impellers, clothing with fans

Abstract

To provide a novel air blower capable of correctly attaching an impeller to a motor, an impeller included in the air blower, and clothing with an air blower comprising the air blower.SOLUTION: In an air blower 10 for sending outside air into a clothing body (W), for connection between a motor 2 and an impeller 1, a male member 4 attached to a rotational shaft 21 of the motor 2 and a female part 13 provided through a central part of a boss 11 of the impeller 1 are fitted, and a projection 5 provided on the male member 4 and a bottomed receiving part 14 provided on the back side of the boss 11 are fitted.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a blower attached to a garment body for blowing outside air into the garment body, an impeller provided in the blower, and a garment equipped with the blower. [Background technology]

[0002] Recently, clothing with a blower (cooling clothing) that cools the inside of clothing such as work clothes (hereinafter referred to as the "clothing body") by supplying outside air into the clothing body has been put into practical use (see, for example, Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2019-214948 Summary of the Invention [Problem to be solved by the invention]

[0004] This type of garment with a fan is designed so that the fan is attached to a hole drilled in an appropriate location on the garment body and sends outside air into the garment body through the fan. The fan generally has an impeller (fan) with multiple blades that is rotated by a motor, and the impeller (and motor) are surrounded by a guard for safety in handling.

[0005] Furthermore, because the garment with a fan supplies the airflow generated by the rotation of the impeller through the guard into the garment body, dust contained in the outside air tends to accumulate inside the guard. Therefore, after using the garment with a fan for a certain period of time, maintenance work is required to remove dust from inside the guard of the fan.

[0006] In this regard, the fan (fan for cooling inside clothes) disclosed in Patent Document 1 proposes a means for connecting the motor 2 and the impeller 1000 by fitting a male member 5 attached to the rotating shaft 21 of the motor 2 with a female portion 13 provided to penetrate the center of the boss 11 of the impeller 1000, as shown in Figure 6. In other words, this connecting means makes it possible to easily remove the impeller 1000 from the motor 2, and also makes it easy to remove dust adhering to the backside of the blades 12 of the impeller 1000.

[0007] However, with the means for connecting the motor 2 and the impeller 1000 disclosed in Patent Document 1, there is a possibility that the impeller 1000 may be attached upside down by mistake.

[0008] The present invention was developed in consideration of the above-mentioned technical problems, and aims to provide a new blower in which the impeller can be correctly attached to the motor, an impeller to be provided in the blower, and blower-equipped clothing equipped with the blower. [Means for solving the problem]

[0009] The blower of the present invention, which solves the above technical problems, comprises a motor, an impeller connected to the rotating shaft of the motor, and a guard surrounding the motor and the impeller, and is attached to a garment body to send outside air into the garment body, characterized in that the motor and impeller are connected by fitting a male member attached to the rotating shaft of the motor with a female part provided through the center of the boss of the impeller, and by fitting a protrusion provided on the male member with a bottomed receiving part provided on the back side of the boss (hereinafter referred to as the "blower of the present invention").

[0010] In a preferred embodiment, the fan of the present invention further comprises a locking member for maintaining the mated state between the male member and the female portion.

[0011] The impeller of the present invention that solves the above technical problems is an impeller provided in the blower of the present invention, and is characterized in that it comprises a boss and a plurality of blades arranged around the boss, a female part that penetrates the center of the boss, and a bottomed receiving part that is arranged on the back surface of the boss (hereinafter referred to as the "impeller of the present invention").

[0012] The garment with a blower of the present invention, which solves the above technical problems, is characterized in that the above-mentioned blower of the present invention is attached to the garment body (hereinafter referred to as "garment of the present invention"). [Effects of the Invention]

[0013] According to the present invention, the impeller (the impeller of the present invention) can be correctly attached to the motor. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1(a) is a perspective view showing an impeller according to an embodiment of the present invention from the front side, and FIG. 1(b) is a perspective view showing the impeller from the back side with a part enlarged. [Figure 2] FIG. 2(a) is a perspective view showing the fan according to the embodiment of the present invention, and FIG. 2(b) is a cross-sectional view. [Figure 3] FIG. 3 is an exploded perspective view showing a means for connecting the impeller of the present invention to a motor. [Figure 4] FIG. 4 is a cross-sectional view (a) showing the male member attached to the rotating shaft of the motor, a perspective view (b) showing the male member from the front side, and a perspective view (c) showing the male member from the back side. [Figure 5] FIG. 5 is a front view showing the garment according to the embodiment of the present invention. [Figure 6] FIG. 6 is an exploded perspective view showing a conventional means for connecting a motor and an impeller. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments.

[0016] [Embodiment 1] <Impeller 1 of the present invention> Figure 1 shows one embodiment of the impeller 1 of the present invention. The impeller 1 of the present invention comprises a boss 11 and a plurality of blades 12 arranged around the boss 11. The boss 11 is a member that forms the center of rotation of the impeller 1 of the present invention, and the blades 12 rotate with the rotation of the boss 11, and play a role in generating a flow of air in a certain direction. In this embodiment, the impeller 1 of the present invention uses a seven-blade rotor that has seven eboshi-shaped blades 12 arranged radially around the boss 11.

[0017] The impeller 1 of the present invention further includes a female portion 13 that penetrates the center of the boss 11, and a bottomed receiving portion 14 that is provided on the back surface of the boss 11. In this embodiment, the female portion 13 is provided by forming a substantially hexagonal through-hole in the center of the boss 11. The receiving portion 14 is provided on the back surface of the boss 11 by forming grooves extending outward from two diagonal corners of the female portion 13. Note that the receiving portion 14 has a bottom, and therefore cannot be seen from the front surface of the boss 11.

[0018] [Embodiment 2] <Blower 10 of the present invention> FIG. 2 shows one embodiment of a blower 10 of the present invention equipped with the impeller 1 of the present invention. The blower 10 of the present invention comprises a motor 2, the impeller 1 of the present invention connected to a rotating shaft 21 of the motor 2, and a guard 3 that surrounds the motor 2 and the impeller 1 of the present invention. As shown in FIG. 3, in the blower 10 of the present invention, the motor 2 and the impeller 1 of the present invention are connected by fitting a male member 4 attached to the rotating shaft 21 of the motor 2 with the female portion 13 provided at the rotation center of the impeller 1 of the present invention, and by fitting a protrusion 5 provided on the male member 4 with the receiving portion 14 provided on the back side of the boss 11. In this embodiment, the fitted state between the male member 4 and the female portion 13 is maintained by a locking member 6.

[0019] -Motor 2- The motor 2 refers to a mechanical element that outputs rotational motion by utilizing the force generated by the Lorentz force (the interaction between a magnetic field and an electric current). In this embodiment, the motor 2 is a commercially available electric motor for models that rotates a rotating shaft 21 by power supplied via a cable connected to a connector (C).

[0020] -Guard 3- The guard 3 surrounds the motor 2 and the impeller 1 of the present invention, thereby ensuring safety during use of the fan 10 of the present invention. The guard 3 must be constructed to allow airflow generated by the rotation of the impeller 1 of the present invention to pass through. Therefore, at least the portions of the guard 3 facing the front and back surfaces of the blades 12 of the impeller 1 of the present invention are provided with mesh-, net-, or lattice-like openings. In this embodiment, the guard 3 is made up of two components: a dome-shaped guard body 31 and a guard lid 32 that covers the opening of the guard body 31. The guard body 31 and the guard lid 32 are screwed together to form a space surrounding the motor 2 and the impeller 1 of the present invention. The motor 2 is fixed to the center of the guard body 31.

[0021] -Male member 4- As shown in Figure 4, the male member 4 is attached to the rotating shaft 21 of the motor 2. In this embodiment, the male member 4 is formed by a hexagonal prism-shaped male member body 41 integrally provided on a disk-shaped seat portion 40, and further, a male screw 42 is provided upright at the center of the male member body 41. The male member 4 is fixed to the motor 2 by pushing the rotating shaft 21 of the motor 2 into a through-hole 43 provided along the central axis of the male member 4.

[0022] -Protrusion 5- The protrusions 5 are provided on the male member 4. In this embodiment, the protrusions 5 are provided by providing columnar claws extending outward from diagonal positions of the male member body 41 of the male member 4.

[0023] -Locking member 6- The locking member 6 serves to maintain the fitted state between the male member 4 and the female portion 13. In this embodiment, a female screw (decorative screw) that can be threadedly engaged with the male screw 42 provided on the male member 4 is used as the locking member 6.

[0024] In constructing the fan 10 of the present invention having the above configuration, first, the male member 4 attached to the rotating shaft 21 of the motor 2 fixed to the guard body 31 is fitted into the female portion 13 provided at the rotation center of the impeller 1 of the present invention (see FIG. 3). At this time, the protrusion 5 provided on the male member 4 is fitted into the receiving portion 14 provided on the back side of the boss 11. In this state, when the locking member 6 is fastened to the male thread 42, the fitted state between the male member 4 and the female portion 13 is maintained, and the motor 2 and the impeller 1 of the present invention are connected. Finally, when the guard cover 32 is screwed onto the guard body 31, a space is formed surrounding the periphery of the motor 2 and the impeller 1 of the present invention, and the fan 10 of the present invention is constructed.

[0025] Furthermore, in the fan 10 of the present invention, the connection between the motor 2 and the impeller 1 of the present invention is achieved not only by fitting the male member 4 attached to the rotating shaft 21 of the motor 2 with the female part 13 provided at the rotation center of the impeller 1 of the present invention, but also by fitting the protrusion 5 provided on the male member 4 with the bottomed receiving part 14 provided on the back side of the boss 11, so the impeller 1 of the present invention cannot be installed upside down.

[0026] As a result, according to the present invention, the impeller 1 of the present invention can be correctly attached to the motor 2.

[0027] In this embodiment, the male member 4 is shaped like a hexagonal pillar, while the female portion 13 is shaped so as to be able to accommodate the male member 4, but the shapes of the male member 4 and the female portion 13 are not particularly limited. Furthermore, the shapes of the male member 4 and the female portion 13 do not need to be the same. The key point is that when the female portion 13 and the male member 4 are fitted together, the rotation shaft 21 of the motor 2 and the center of rotation of the impeller 1 of the present invention are aligned on the same straight line. The same applies to the relationship between the protrusion 5 and the receiving portion 14.

[0028] Furthermore, in this embodiment, a screw is used as the locking member 6, but the locking member 6 is not particularly limited as long as it is a mechanical element that maintains the mated state between the male member 4 and the female portion 13. When using a screw as the locking member 6, using a mechanism that allows fastening without tools, such as the decorative screw used in this embodiment or a thumbscrew, has the advantage of making assembly and disassembly of the fan 10 of the present invention easier.

[0029] [Embodiment 3] <100 invention garments> FIG. 5 shows a garment 100 of the present invention equipped with the inventive fan 10. The garment 100 of the present invention has the inventive fan 10 attached to the garment body (W). The garment 100 of the present invention uses the inventive fan 10 to generate an airflow from the outside to the inside of the garment body (W), thereby sending outside air into the garment body (W) and cooling the inside of the garment body (W). In this embodiment, the garment 100 of the present invention is constructed by drilling holes in multiple locations (two locations) in the garment body (W) and attaching the inventive fan 10 to each hole. Note that power for driving each inventive fan 10 is supplied from power stored in a battery (B) via a cable (L).

[0030] The present invention can be embodied in various other forms without departing from its spirit or main features. Therefore, the above-described embodiments are merely illustrative in all respects and should not be interpreted as limiting. The scope of the present invention is defined by the claims and is not limited to the text of the specification. Furthermore, all modifications and variations within the equivalent scope of the claims are within the scope of the present invention. [Industrial Applicability]

[0031] The present invention is suitably used as a means for cooling the inside of a clothing body by supplying outside air into the clothing body. [Explanation of symbols]

[0032] 1 Impeller (impeller of the present invention) 11 Boss 12 Feathers 13 Female part 14 Receiving Department 2 motors 3 Guard 4 Male member 5 protrusions 6 Locking member 10. Blower (blower of the present invention) 100 Clothes with a blower (clothes of the present invention) 1000 Conventional impeller W Clothing body

Claims

1. A blower comprising: a motor; an impeller connected to a rotary shaft of the motor; and a guard surrounding the motor and the impeller; the blower is attached to a garment body and is configured to send outside air into the garment body, The impeller comprises a boss that is a hollow cylindrical body with a bottom, and a plurality of blades provided on a peripheral wall of the boss, The connection between the motor and the impeller is an outer fitting of the boss of the impeller to the motor; a male member attached to the rotary shaft of the motor and a female portion provided to penetrate the center of the bottom wall of the boss of the impeller; and, a projection provided on the male member and a bottomed receiving portion provided on the back side of the bottom wall of the boss, which are fitted together.

2. The blower according to claim 1, The blower further comprises a locking member for maintaining the mated state between the male member and the female portion.

3. An impeller provided in the blower according to claim 1 or 2, a boss formed as a hollow cylindrical body with a bottom; a plurality of blades provided on a peripheral wall of the boss; and a female portion that penetrates the center of the bottom wall of the boss; a bottomed receiving portion provided on the back surface of the bottom wall of the boss; An impeller comprising:

4. 3. A garment with a fan, wherein the clothing cooling fan according to claim 1 or 2 is attached to a garment body.

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