Blower, blower for clothes

Abstract

To provide a new blower in which durability is improved with respect to fastening of a screw executed when mounting an impeller on a motor, and to provide clothing with blower which includes the blower of the same.SOLUTION: In a blower 1 for blowing the outside air into a clothing body (W), the connection between a motor 2 and an impeller 3 is performed by fitting between a male member 5 mounted on a rotation shaft 21 of the motor 2 and a female part 33 provided by penetrating the central part of a boss 31 of the impeller 3, and screwing of a screw 6 with respect to a male screw part (or male screw) 52 provided at an end surface of the male member 5, and at a flush flat surface formed by the surface of the boss 31 and the end surface of the male member 5, a seating surface of the screw 6 is brought into a surface contact.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a blower attached to a clothing body for sending outside air into the clothing body, and a clothing with a blower equipped with the blower.

Background Art

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

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] This type of clothing with a blower is configured to attach a blower to a hole appropriately formed in the clothing body and send outside air into the clothing body through the blower. And as the blower, a type that rotates an impeller (fan) having a plurality of blades by driving a motor is common, and for safety, the periphery of the impeller (and the motor) is surrounded by a guard.

[0005] And since the clothing with a blower supplies the air flow generated by the rotation of the impeller into the clothing body through the guard, it is easy to store dust contained in the outside air in the guard. Therefore, after using the clothing with a blower for a certain period of time, maintenance work for removing the dust in the guard of the blower is required.

[0006] In this regard, the blower (blower for cooling inside clothing) disclosed in Patent Document 1 proposes a means of connecting the motor 2 and the impeller 3 by fitting a male member 5 attached to the rotating shaft 21 of the motor 2 with a female part (housing chamber) 35 provided on the back surface of the boss 31 of the impeller 3, and by a screw 6 that is screwed into the male member 5 through a through hole 36 that penetrates the center of the boss 31, as shown in Figure 7.

[0007] Furthermore, the blower (blower for cooling inside clothing) disclosed in Patent Document 2 proposes a means of connecting the motor 2 and the impeller 3 by fitting a male member (male screw portion) 5 attached to the rotating shaft 21 of the motor 2 with a female portion (through hole) 33 provided in the center of the boss 31 of the impeller 3, and by a screw 6 screwed into the male member 5, as shown in Figure 8.

[0008] In other words, by employing these connecting means, the impeller 3 can be easily removed from the motor 2, and dust adhering to the back side of the blades 32 of the impeller 3 can be easily removed.

[0009] However, in the coupling means between the motor 2 and the impeller 3 disclosed in Patent Document 1, the boss 31 is sandwiched between the male member 5 and the seating surface of the screw 6, so damage may occur due to excessive tightening of the screw 6.

[0010] Furthermore, in the connection means between the motor 2 and the impeller 3 disclosed in Patent Document 1, excessive tightening of the screw 6 may cause damage to the reinforcing portion 30 provided along the outer edge of the female portion 33.

[0011] The present invention was developed in view of the above-mentioned technical problems, and aims to provide a novel blower with improved durability against the tightening of screws performed when attaching the impeller to the motor, and a garment equipped with the blower. [Means for solving the problem]

[0012] The blower of the present invention, which solves the aforementioned 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 blow outside air into the garment body, wherein the connection between the motor and the impeller is made by fitting a male member attached to the rotating shaft of the motor and a female part provided through the center of the boss of the impeller, and by screwing a screw into a female screw portion or male screw portion provided on the end face of the male member, the surface of the boss and the end face of the male member form a flush flat surface, and the flat surface and the seating surface of the screw are in surface contact (hereinafter referred to as "the blower of the present invention").

[0013] In the blower of the present invention, a preferred embodiment is one in which, when the motor and the impeller are connected, a projection provided on the male member and a bottomed receiving portion provided on the back side of the boss engage with each other.

[0014] The garment with a fan of the present invention, which solves the aforementioned technical problems, is characterized in that the fan of the present invention is attached to the garment body (hereinafter referred to as "the garment of the present invention"). [Effects of the Invention]

[0015] According to the present invention, the durability against tightening screws when attaching the impeller to the motor is improved. [Brief explanation of the drawing]

[0016] [Figure 1] Figure 1 shows a perspective view (a) and a side view (b) showing a cross-sectional view and partially enlarged view of one embodiment of the blower of the present invention. [Figure 2] Figure 2 shows a perspective view (a) of the impeller of the blower of the present invention from the front side, and a perspective view (b) of the impeller from the back side, with a portion of it enlarged. [Figure 3]FIG. 3 is a perspective view (a) showing the male member of the blower of the present invention from the front side, a perspective view (b) showing the male member from the back side, and a perspective view showing the male member connected to the motor. [Figure 4] FIG. 4 is a perspective view (a) showing the screw of the blower of the present invention from the front side and a perspective view (b) showing the screw from the back side. [Figure 5] FIG. 5 is an exploded perspective view showing the connection between the motor and the impeller. [Figure 6] FIG. 6 is a front view showing an embodiment of the clothing of the present invention to which the blower of the present invention is attached. [Figure 7] FIG. 7 is an exploded perspective view showing the connecting means between a conventional motor and an impeller. [Figure 8] FIG. 8 is an exploded perspective view showing a partial enlargement of another connecting means between a conventional motor and an impeller.

Embodiments for Carrying Out the Invention

[0017] Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments.

[0018] <Blower 1 of the Present Invention> FIG. 1 shows an embodiment of the blower 1 of the present invention. The blower 1 of the present invention includes a "motor (2)", an "impeller (3)" connected to the rotating shaft 21 of the motor 2, and a "guard (4)" surrounding the motor 2 and the impeller 3.

[0019] -Motor 2- The motor 2 means a mechanical element that outputs rotational motion by utilizing the force generated by the Lorentz force (interaction between magnetic field and current). In the present embodiment, as the motor 2, a mechanism (commercially available model electric motor) that rotates the rotating shaft 21 by the electric power supplied through a cable (not shown) connected to the connector (C) is used. Note that a "male member (5)" described later is attached to the tip of the rotating shaft 21 of the motor 2.

[0020] -Impeller 3- As shown in Figure 2, the impeller 3 comprises a boss 31 and a plurality of blades 32 arranged around the boss 31. The boss 31 is the rotational center of the impeller 3, and the blades 32 rotate in conjunction with the rotation of the boss 31, playing a role in generating an airflow in a certain direction. In this embodiment, the impeller 3 is a seven-blade rotor comprising seven eboshi-shaped blades 32 arranged radially around the boss 31. The impeller 3 is further provided with a female part 33 that penetrates the center of the boss 31. In this embodiment, the female part 33 is provided by providing a substantially hexagonal through hole in the center of the boss 31. Furthermore, a bottomed receiving part 34 is provided on the back side of the boss 31 by forming grooves outward from two diagonal locations of the female part 33. Since the receiving part 34 is bottomed, it cannot be seen from the surface side of the boss 31.

[0021] -Guard 4- The guard 4 ensures safety during use of the blower 1 of the present invention by surrounding the motor 2 and the impeller 3. Furthermore, since the guard 4 needs to have a structure that allows the airflow generated by the rotation of the impeller 3 to pass through, at least the portion facing the front and back surfaces of the blades 32 of the impeller 3 is provided with openings such as a mesh, net, or grid. In this embodiment, the guard 4 consists of two components: a dome-shaped guard body 41 and a guard cover 42 that covers the opening of the guard body 41. The guard body 41 and the guard cover 42 are screwed together to form a space surrounding the motor 2 and the impeller 3. The motor 2 is fixed to the center of the guard body 41.

[0022] -Male member 5- As shown in Figure 3, the male member 5 is attached to the rotating shaft 21 of the motor 2. In this embodiment, the male member 5 is provided with a hexagonal prism-shaped male member body 51 integrally mounted on a disc-shaped seat 50, and a male screw portion 52 is erected in the center of the male member body 51. The end face shape of the male member body 51 is sized to fit into the female portion 33 provided on the impeller 3, and the height of the male member body 51 is the same as the thickness of the boss 31 of the impeller 3. Furthermore, in this embodiment, the male member 5 is provided with a projection 53 by providing columnar claws that extend outward from diagonal points on the male member body 51. The male member 5 is fixed to the motor 2 by pushing the rotating shaft 21 of the motor 2 into a through hole 54 provided along the central axis of the male member 5.

[0023] In the blower 1 of the present invention, the connection between the motor 2 and the impeller 3 is made by fitting the male member 5 and the female part 33 together, and by screwing a "screw (6)" into the male screw portion 52 provided on the end face of the male member 5.

[0024] -Screw 6- The screw 6 plays a role in maintaining the fitted state between the male member 5 and the female part 33. As shown in Figure 4, in this embodiment, the screw 6 is a knurled screw having a female threaded portion 61 that can be screwed into a male threaded portion 52 provided on the male member 5 in the center of a flat seating surface 60.

[0025] In constructing the blower 1 of the present invention having the above configuration, first, as shown in Figure 5, the male member 5 attached to the rotating shaft 21 of the motor 2 is fitted into the female part 33 provided on the boss 31 of the impeller 3 (in this embodiment, the projection 53 provided on the male member 5 is further fitted into the receiving part 34 provided on the back side of the boss 31). When the screw 6 is fastened to the male screw part 52 in this state, the fitted state of the male member 5 and the female part 33 is maintained and the motor 2 and the impeller 3 are connected. Finally, when the guard cover 42 is screwed onto the guard body 41 to which the motor 2 is fixed, a space surrounding the motor 2 and the impeller 3 is formed, and thus the blower 1 of the present invention is constructed.

[0026] Furthermore, in the blower 1 of the present invention, the height dimension of the male member body 51 is set such that when the motor 2 and the impeller 3 are connected, the surface of the boss 31 and the end face of the male member 5 form a flush, flat surface. Therefore, when the screw 6 is fastened, the flat surface and the seating surface 60 of the screw 6 make surface contact (see enlarged view of Figure 1(b)).

[0027] This improves the durability of the screw 6 when attaching the impeller 3 to the motor 2.

[0028] Furthermore, in the blower 1 according to this embodiment of the present invention, the connection between the motor 2 and the impeller 3 is made not only by fitting the male member 5 and the female part 33, but also by fitting the projection 53 provided on the male member 5 with the bottomed receiving part 34 provided on the back side of the boss 31. Therefore, the impeller 3 cannot be attached to the motor 2 in an upside-down state. As a result, the impeller 3 can be correctly attached to the motor 2.

[0029] In this embodiment, the male member 5 is shaped like a hexagonal prism, while the female part 33 is shaped to accommodate the male member 5. However, the shapes of the male member 5 and the female part 33 are not particularly limited. Furthermore, it is not necessary for the shapes of the male member 5 and the female part 33 to be the same. In short, the female part 33 and the male member 5 should be arranged such that when they are fitted together, the rotation axis 21 of the motor 2 and the rotation center of the impeller 3 are aligned in the same straight line. Moreover, the projection 53 and the receiving part 34 are not essential components of this invention.

[0030] In addition, in this embodiment, since the male member 5 was provided with a male screw portion 52, a screw 6 provided with a female screw portion 61 was used. However, it is also possible to use a male member 5 provided with a female screw and a male screw provided as the screw 6.

[0031] <Inventive clothing 10> Figure 6 shows the garment 10 of the present invention equipped with the blower 1 of the present invention. The garment 10 of the present invention has the blower 1 of the present invention attached to the garment body (W). The garment 10 of the present invention cools the inside of the garment body (W) by generating an airflow from the outside to the inside of the garment body (W) using the blower 1 of the present invention. In this embodiment, the garment 10 of the present invention is constructed by making holes in multiple locations (two locations) of the garment body (W) and attaching the blower 1 of the present invention to each hole. The power to drive each blower 1 of the present invention is supplied by power stored in a battery (B) through a cable (L).

[0032] Furthermore, the present invention can be implemented in various other forms without departing from its spirit or main features. Therefore, the embodiments described above are merely illustrative in all respects and should not be interpreted restrictively. The scope of the present invention is defined by the claims and is not restricted in any way by the text of the specification. Moreover, any modifications or changes falling within the equivalent scope of the claims are all within the scope of the present invention. [Industrial applicability]

[0033] The present invention is suitably used as a means of cooling the inside of a garment by supplying outside air into the garment. [Explanation of symbols]

[0034] 1. The present invention (blower) 2 motors 21 Rotation axis 3-Paddle Wheel 31 Boss 32 feathers 33 Female part 34 Receiving Department 4 Guard 5 Male member 50 seat 51 Male component body 52 Male threaded section 53 Protrusion 54 Through hole 6 screws 60 seat 61 Female threaded section 10 Clothing of the present invention (clothing with a blower)

Claims

1. A blower comprising a motor, an impeller connected to the rotating shaft of the motor, and a guard surrounding the motor and the impeller, which is attached to a garment body and blows outside air into the garment body, The connection between the motor and the impeller is made by fitting a male member attached to the rotating shaft of the motor with a female member provided through the center of the boss of the impeller, and by screwing a screw into a female threaded portion or a male threaded portion provided on the end face of the male member. A blower characterized in that the periphery of the female part is flush with the surface of the boss, and the surface of the boss and the end face of the male member form a flush flat surface, and the flat surface and the seating surface of the screw are in surface contact.

2. In the blower according to claim 1, A blower in which, when the motor and the impeller are connected, a projection provided on the male member and a bottomed receiving portion provided on the back side of the boss engage with each other.

3. A garment with a fan, characterized in that the fan described in claim 1 or 2 is attached to the garment body.

Images