TWI651474B - Air supply device - Google Patents

Abstract

The present invention provides an air blowing device that facilitates connection of a power cable to a main body portion and suppresses slack of a power cable. The air blowing device supplies power to the main body portion by a power cable (33) connected to the ceiling socket, and includes a cable length variable device (34) having a cable housing portion (62a) And a cable length variable portion (a fixed pulley 64, a movable sheave 65, a guide groove 66, and a tension spring 67) that has a variable pull-out length of the power cable (33).

Description

Air supply device

The present invention relates to an air blowing device including a fan and a motor.

In the past, various electrical equipment such as an air cleaner installed on the ceiling of a house has been developed. The above electrical equipment is mounted on the ceiling and is powered from a ceiling rosette mounted on the ceiling. As described above, Patent Document 1 discloses a ceiling mounted air cleaner as an electrical device mounted on a ceiling.

In the configuration described in Patent Document 1, one end portion of a power cable (power supply line) for supplying electric power to the electric circuit is electrically connected to the ceiling socket, and is pulled downward through the shaft body.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2000-161729

Here, in order to facilitate the connection work of the power cable to the electric circuit, it is necessary to extend the power cable and have a margin. However, in the configuration described in Patent Document 1, even when the power cable of the ceiling socket is pulled out from the lower side and the power cable is provided with a margin, the power cable is even It is also easy to become a slack state after the electrical circuit is connected. In the above case, a situation occurs in which the power cable is wound around other members and is easily damaged.

Accordingly, an object of the present invention is to provide an air blowing device that facilitates connection of a power cable to a main body portion of a blower and that can suppress slack of a power cable.

In order to solve the above problems, an air blower according to an aspect of the present invention includes a main body portion having a fan that blows air and a motor that rotates the fan, and is attached to the sky. The flower board socket supplies power to the main body portion by a power cable that connects one end portion to the ceiling socket and connects the other end portion to the main body portion, and the air blowing device includes a cable length variable device, and the cable length is The transformer device includes a cable accommodating portion that accommodates a portion between the one end portion and the other end portion of the power cable, and a cable accommodating portion that is provided in the cable accommodating portion and that causes the power cable to pass through the cable accommodating portion. Pull out the variable length cable length variable portion.

According to one aspect of the present invention, the operator can easily connect the other end portion of the power cable to a predetermined connection portion of the main body portion by pulling the power cable from the cable length variable device. Further, after the power cable is connected to the main body portion, the cable length variable portion accommodates the excess portion (slack portion) of the power cable drawn from the cable housing portion, and the power cable can be loosened. The state of the state is suppressed. Thereby, the power cable connected to the ceiling socket at one end is easily connected to the main body, and slack is less likely to occur after the above connection.

1‧‧‧Air supply device

11‧‧‧ Ceiling panel

12‧‧‧ Ceiling socket

14‧‧‧Power connection adapter

21‧‧‧ Body support

21c‧‧‧Flange

21c1‧‧‧ fitting hole

22‧‧‧ Body Department

26‧‧‧Clock Department

31‧‧‧Support member fitting

32‧‧‧Power connection

33‧‧‧Power cable

34‧‧‧Cable length variable device

35‧‧‧ cable cover

36‧‧‧Connector

37‧‧‧Clamping convex part (fitting receiving part)

42‧‧‧Air blower

47‧‧‧fan

48‧‧‧Motor

55‧‧‧Lighting substrate

61‧‧‧ cabinet

62‧‧‧Upper box body

62a‧‧‧ Cable Storage Department

62b‧‧‧ fitting convex part (joining action part)

63‧‧‧ Lower box body (linking action department)

64‧‧‧Fixed pulley (variable cable length)

65‧‧‧Moving pulley (variable cable length)

66‧‧‧ Guide groove (variable cable length)

67‧‧‧ Tension spring (forced member, cable length variable part)

71‧‧‧Clamping claws (insertion and removal operation)

72‧‧‧Operation lever (insertion and removal operation)

73‧‧‧Internal surface components (non-combustible components)

Fig. 1 is a perspective view showing a state in which an air blower is attached to a ceiling according to an embodiment of the present invention as seen obliquely from below.

Fig. 2 (a) is a perspective view showing a state in which the cable length variable device is attached to the air blowing device shown in Fig. 1 as viewed obliquely from above, and Fig. 2 (b) is in a state shown in Fig. 2 (a). Longitudinal section of the air supply unit.

Fig. 3 (a) is a perspective view showing a state in which the cable length variable device and the cable cover are attached to the air blowing device shown in Fig. 1 as seen obliquely from above, and Fig. 3 (b) is a view of Fig. 3 (a) A longitudinal sectional view of the air blowing device in the illustrated state.

4 is a perspective view showing a configuration of a main body support portion that is attached to the hanger portion of the ceiling socket shown in FIG. 2 and an engagement portion that is provided in the main body support portion.

Fig. 5 is a perspective view showing the relationship between the main body support portion and the main body portion shown in Fig. 2(a).

Fig. 6 is a perspective view showing a state in which the main body support portion shown in Fig. 5 is fitted to the main body portion.

Fig. 7 is a plan view showing a state in which the upper casing portion is removed from the main body portion shown in Fig. 2;

Fig. 8 is a perspective view showing, in an enlarged manner, a state in which the main body support portion and the cable length variable device shown in Fig. 2 are attached and the cable length variable device is attached to the main body support portion.

FIG. 9 is a perspective view showing a state in which the lower casing portion of the cable length variable device is slid rearward from the state shown in FIG. 8.

Fig. 10 is a longitudinal sectional view showing a main body support portion and a cable length variable device in the state shown in Fig. 8;

Fig. 11 (a) is a plan view showing a configuration of a cable housing portion of the upper casing portion when the movable sheave is present at the cable retracting position in the cable length variable device shown in Fig. 8; b) is a plan view showing a configuration of the cable housing portion of the upper casing portion when the movable sheave is present at the cable extension position in the cable length variable device shown in FIG.

Fig. 12 (a) is a bottom view showing the upper casing portion when the movable sheave is present at the cable retracting position in the cable length variable device shown in Fig. 8, and Fig. 12 (b) is a view In the cable length variable device shown in Fig. 8, the movable pulley is present in a bottom view of the upper casing portion when the cable is extended.

Fig. 13 is a perspective view showing a cable length variable device of the air blowing device in the state shown in Fig. 2(a) and a configuration in the vicinity thereof.

Fig. 14 is a perspective view showing a cable cover of the air blowing device in the state shown in Fig. 3 (a) and a configuration in the vicinity thereof.

Fig. 15 (a) is a longitudinal sectional view of the main body portion and the cable cover in a state in which the engaging claw portion of the cable cover shown in Fig. 14 is fitted to the engaging convex portion of the main body portion, and Fig. 15 (b) is a view A longitudinal cross-sectional view of the cable cover shown in FIG.

[First Embodiment]

(Installation structure of the air supply device to the ceiling)

Embodiments of the present invention will be described below based on the drawings. Fig. 1 is a perspective view of the air blowing device 1 in a state in which it is attached to a ceiling of a room, as seen from obliquely below. Fig. 2 (a) is a perspective view showing a state in which the cable length variable device 34 is attached to the air blowing device 1 shown in Fig. 1 as viewed obliquely from above, and Fig. 2 (b) is a view shown in Fig. 2 (a) A longitudinal sectional view of the air blowing device 1 in a state. Fig. 3 (a) is a perspective view showing a state in which the cable length variable device 34 and the cable cover 35 are attached to the air blowing device 1 shown in Fig. 1 as seen obliquely from above, and Fig. 3 (b) is a view of Fig. 3 ( a) A longitudinal sectional view of the air blowing device 1 in the state shown.

As shown in Fig. 1, the air blowing device 1 of the present embodiment is attached to a ceiling panel (ceiling) 11 of a house. Specifically, the ceiling panel 11 is provided with a ceiling socket 12 (see FIG. 2 ), and the air blowing device 1 is attached to the ceiling socket 12 and supported by the ceiling socket 12 . As shown in FIGS. 2(a) and 2(b) and FIGS. 3(a) and 3(b), the air blowing device 1 includes a main body support portion 21, an engagement portion 26, a main body portion 22, a cable length variable device 34, and a cable. Wire cover 35.

(Configuration of ceiling socket 12)

4 is a perspective view showing a configuration of a main body support portion 21 that is attached to the hanger portion 13 (see FIG. 8 ) of the ceiling socket 12 and an engagement portion 26 that is provided (connected) to the main body support portion 21 . In addition, in FIG. 4, the main body support portion 21 is fitted to the support member fitting portion (main body side connecting portion) 31 provided (connected) to the upper surface of the main body portion 22.

The ceiling socket 12 is a so-called ceiling socket with a hanger, and has one hanger unit 13 for every 180 degrees of the outer peripheral portion. The hanger portion 13 has an upward end at the outer end The upper protruding portion 13b is bent (see FIG. 8). As an example, the air blowing device 1 has a weight of about 8.5 kg, and the ceiling socket 12 can withstand the load of the air blowing device 1.

(Configuration of the body support portion 21)

The main body support portion 21 is screwed to the hanger portion 13 of the ceiling socket 12. In the above case, the screw penetrates the screw hole of the upper plate portion 21a of the body support portion 21 from the lower side of the body support portion 21, and is fastened to the screw fastening hole of the hanger portion 13.

The body support portion 21 is formed of, for example, metal, and has an upper plate portion 21a, a cylindrical portion 21b, and a flange portion 21c. The upper plate portion 21a has a circular plate shape, and has a circular hole 21a1 penetrating through a protruding portion at the center of the ceiling socket 12 at the center portion. The cylindrical portion 21b has a cylindrical shape with a predetermined height, and the upper edge portion is connected to the outer peripheral portion of the upper plate portion 21a. The flange portion 21c has a circular ring shape, and the inner peripheral portion is connected to the lower edge portion of the cylindrical portion 21b. In the flange portion 21c, a plurality of circular fitting holes 21c1 are formed over the entire circumference.

(Configuration of the engaging portion 26)

As shown in FIG. 4, the engaging portion 26 is provided in the upper surface of the upper plate portion 21a of the main body support portion 21 in correspondence with the two hanger portions 13. The engaging portion 26 has an opposing portion 26a, an upright portion 26b, and a lower plate portion 26c. The opposing portion 26a is opposed to the hanger portion 13 in a state where the main body support portion 21 is fastened to the hanger portion 13 of the ceiling socket 12 by a screw. In the upright portion 26b, the lower end portion is connected to the end portion of the lower plate portion 26c in one direction, and the upper end portion is connected to the end portion of the opposite portion 26a in the opposite direction to the one direction. The lower plate portion 26c is located on the upper plate portion 21a of the body support portion 21, and is fixed to the upper plate portion 21a by, for example, a screw.

In the opposing portion 26a of the engaging portion 26, the main body supporting portion 21 is fixed to the hanger portion 13 by the screw 23, and is permeable to the position facing the upper protruding portion 13b of the hanger portion 13 The protruding portion of the upper protruding portion 13b is inserted into the hole 26a1. The screw is moved from the screw fastening hole of the hanger portion 13 When the main body support portion 21, that is, the air blowing device 1 is moved downward, the upper protruding portion 13b of the hanger portion 13 of the ceiling socket 12 is fitted into the protruding portion insertion hole 26a1.

Further, the opposing portion 26a has, for example, a slit-shaped screw insertion portion 26a2 that avoids interference with the screw 23. Further, the opposing portion 26a has a lower protruding portion 26a3 at an end portion in the one direction in the longitudinal direction.

(Configuration of Support Member Mating Portion 31)

Fig. 5 is a perspective view showing the relationship between the main body support portion 21 and the main body portion 22 shown in Fig. 2(a). Fig. 6 is a perspective view showing a state in which the main body support portion 21 and the main body portion 22 shown in Fig. 5 are fitted.

As shown in FIG. 5, the main body portion 22 has a support member fitting portion 31 that is fitted to the main body support portion 21 at a central position of the upper surface portion. The support member fitting portion 31 is in a state in which the member having a cross-sectional Z shape is bent in a U shape. Specifically, each of the support member fitting portions 31 has a U-shaped upper plate portion 31a, an upright portion 31b, and a lower plate portion 31c. The upper plate portion 31a is located inside the U-shaped support member fitting portion 31. The U-shaped end portions of the support member fitting portion 31 are fitted into the fitting openings 31d that are laterally opened.

The outer peripheral portion of the upper plate portion 31a is connected to the upper edge portion of the upright portion 31b. The upper plate portion 31a has a fitting convex portion 31a2 that protrudes downward in the middle portion of the U-shape. The lower edge portion of the standing portion 31b is connected to the inner peripheral portion of the lower plate portion 31c. The lower plate portion 31c is fixed to the upper surface portion of the body portion 22.

(Configuration of the main body portion 22 supported by the main body support portion 21)

As shown in FIG. 6, the support member fitting portion 31 of the main body portion 22 is fitted to the main body support portion 21. In the above case, the flange portion 21c of the main body support portion 21 is located between the opposed upright portions 31b of the support member fitting portion 31, and the upper plate portion 31a of the support member fitting portion 31 is located at the flange of the body support portion 21. Above the part 21c. Thereby, the body portion 22 is supported by the body support portion 21. Moreover, the upper side of the support member fitting portion 31 The fitting convex portion 31a2 of the plate portion 31a is fitted to the fitting hole 21c1 of the flange portion 21c of the body supporting portion 21. Thereby, the body portion 22 is fixed so as not to rotate.

As described above, the main body support portion 21 is fixed to the ceiling socket 12 at the upper portion (upper plate portion 21a), and the lower portion (the flange portion 21c) is fitted to the main body portion 22, and has an intermediate portion extending in the vertical direction between the upper portion and the lower portion ( Cylinder portion 21b).

(Configuration of the body portion 22)

Fig. 7 is a plan view showing a state in which the upper casing portion 41 is removed from the main body portion 22 shown in Fig. 2 . As shown in FIGS. 2 and 7, the main body portion 22 includes an upper casing portion 41, a blower 42, a blowing passage 43 (see FIG. 7), a HEPA filter (High Efficiency Particulate Air Filter) 44, an illuminating portion 45, and an ion generating element. 46 (refer to FIG. 7), a pre-filter (not shown), a lower cover member 52, and a louver 58.

The upper case portion 41 is located at the uppermost portion of the body portion 22 and covers the inside of the body portion 22 from above. The upper casing portion 41 has a shape in which the peripheral portion is bent downward and inclined. The support member fitting portion 31 is attached to the upper casing portion 41.

The blower 42 is disposed at a position directly below the ceiling member 12 of the support member fitting portion 31, and includes a fan 47 and a motor 48 that rotates the fan 47. The fan 47 and the motor 48 are provided at a central portion of the main body portion 22 in the radial direction (direction parallel to the ceiling) such that the centers of the fans 47 and the motor 48 substantially coincide with the center of gravity of the main body portion 22 in the vertical direction.

As shown in FIG. 7, the fan 47 is provided inside the air supply passage 43. The air supply passage 43 has two air outlets 43a in opposite directions, and the air is blown from the air outlets 43a by the rotation of the fan 47. A sunroof 57 extending in the vertical direction is provided in the air outlet 43a.

The ion generating elements 46 are respectively disposed in the vicinity of the two air outlets 43a of the air passages 43, and generate ions to supply the generated ions to the air blown from the air outlets 43a.

The HEPA filter 44 has a function as a dust collecting filter and is disposed at a lower portion of the body portion 22. A pre-filter is provided below the HEPA filter 44. The pre-filter removes dust and dust in the front section of the HEPA filter 44.

A lower cover member 52 is disposed below the pre-filter. The periphery of the lower cover member 52 serves as a suction port 60 to the body portion 22.

The illumination unit 45 includes an illumination board 55 and an illumination cover 56 that covers the illumination board 55 . The illumination substrate 55 is provided with a plurality of LEDs and has a ring plate shape. Therefore, the air blowing device 1 of the present embodiment also has a function as an LED device including LED illumination.

(Configuration of Cable Length Variable Device 34)

FIG. 8 is a perspective view showing a state in which the main body support portion 21 and the cable length variable device 34 shown in FIG. 2 are enlarged and the cable length variable device 34 is attached to the main body support portion 21. FIG. 9 is a perspective view showing a state in which the lower casing portion 63 of the cable length variable device 34 is slid rearward from the state shown in FIG. 8. Fig. 10 is a longitudinal sectional view showing the main body support portion 21 and the cable length variable device 34 in the state shown in Fig. 8.

Fig. 11 (a) is a plan view showing a configuration of the cable housing portion 62a of the upper casing portion 62 when the movable sheave 65 is present at the cable retracting position in the cable length variable device 34 shown in Fig. 8 . FIG. 11(b) shows the configuration of the cable housing portion 62a of the upper casing portion 62 when the movable pulley 65 is present at the cable extension position in the cable length variable device 34 shown in FIG. Top view. Fig. 12 (a) is a bottom view showing the upper casing portion 62 when the movable sheave 65 is present at the cable retracting position in the cable length varying device 34 shown in Fig. 8, and Fig. 12 (b) is In the cable length variable device 34 shown in Fig. 8, a bottom view of the upper case portion 62 when the movable sheave 65 is present at the cable extension position is shown.

As shown in FIG. 10, the cable length variable device 34 has a casing 61 composed of an upper casing portion 62 and a lower casing portion 63. The upper case portion 62 has a cable housing portion 62a defined by an upper wall portion and a lower wall portion. As shown in FIGS. 11 and 12, a fixed pulley 64 and a movable pulley 65 are provided in the cable housing portion 62a. The fixed pulley 64 is rotatable at a certain position. The movable sheave 65 is movable in the pull-out direction P and the opposite direction, that is, the return direction PB, and is rotatable.

As shown in FIG. 11 and FIG. 12, in the upper case portion 62, a guide groove 66 extending in the pull-out direction P and the return direction PB is formed in the wall portion below the side position of the fixed sheave 64, and the movable sheave 65 can be Moves within the guide slot 66. Further, the movable sheave 65 is pulled in the returning direction PB by the tension spring (urging member) 67. The fixed sheave 64, the movable sheave 65, the guide groove 66, and the tension spring 67 constitute a cable length variable portion.

A power cable 33 is passed through the cable length variable device 34. One end of the power cable 33 is connected to the power connection adapter 14 of the ceiling socket 12. The other end portion of the power cable 33 is introduced into the cable housing portion 62a of the cable length variable device 34 from the end portion on the body support portion 21 side, and is sequentially wound in an S shape on the fixed pulley 64 and the movable pulley 65. Thereafter, the other end portion on the side of the power source connecting portion 32 is pulled out. Further, a connector 36 connected to the power supply connecting portion 32 is provided at the other end of the power cable 33. The power connection portion 32 has a connector that is connected to a connector of the power cable 33. The power supply connecting portion 32 is connected to the motor 48 of the main body portion 22 and a power supply substrate that supplies power to the illumination board 55.

As shown in FIG. 9 and FIG. 10, a fitting convex portion 62b that protrudes downward is provided in the vicinity of the distal end portion (the end portion on the body supporting portion 21 side) of the upper casing portion 62 of the cable length variable device 34. The fitting convex portion 62b can be fitted into the fitting hole 21c1 of the flange portion 21c in a state where the upper casing portion 62 is disposed on the flange portion 21c of the body supporting portion 21.

The lower case portion 63 of the cable length variable device 34 is slidable in the front-rear direction with respect to the upper case portion 62. As shown in FIG. 8, the lower case portion 63 is in a state where the lower case portion 63 slides forward. The front portion is located below the flange portion 21c of the main body support portion 21, and the flange portion 21c is sandwiched by the upper case portion 62 and the lower case portion (connection operation portion) 63. In the above state, the fitting convex portion (coupling operation portion) 62b of the upper casing portion 62 is fitted into the fitting hole 21c1 of the flange portion 21c, and the cable length changing device 34 is attached to the main body supporting portion 21. status.

On the other hand, in a state where the lower casing portion 63 is slid rearward, as shown in FIG. 9, the front portion of the lower casing portion 63 is retracted from the lower portion of the flange portion 21c of the main body support portion 21 and removed. In the above state, the fitting convex portion 62b of the upper casing portion 62 fitted to the fitting hole 21c1 of the flange portion 21c of the main body support portion 21 can be pulled out from the fitting hole 21c1, and the cable length can be made long. The variable device 34 is removed from the flange portion 21c.

According to the configuration as described above, the cable length variable device 34 is not easily damaged even if the power cable 33 is strongly stretched, and has durability, so that the power cable 33 can be pulled out with an appropriate length.

(Configuration of cable cover 35)

FIG. 13 is a perspective view showing a configuration of the cable length variable device 34 of the air blowing device 1 in the state shown in FIG. 2(a) (the state in which the cable length variable device 34 is attached) and its vicinity. Fig. 14 is a perspective view showing a configuration of a cable cover 35 of the air blowing device 1 and a vicinity thereof in a state shown in Fig. 3 (a) (a state in which the cable length variable device 34 and the cable cover 35 are attached). Fig. 15 (a) is a longitudinal sectional view of the main body portion 22 and the cable cover 35 in a state in which the engaging claw portion 71 of the cable cover 35 shown in Fig. 14 is fitted to the engaging convex portion 37 of the main body portion 22, 15(b) is a longitudinal sectional view of the cable cover 35 shown in FIG.

As shown in Fig. 3 (a), Fig. 14, and Fig. 15, the cable cover 35 is placed on the upper surface of the main body portion 22, and the cable length variable device 34 and the power supply connecting portion 32 shown in Fig. 13 are covered from above. The shape of the cover of the area. The outer casing portion of the cable cover 35 is heat-resistant, for example, a resin molded article. on the other hand, The inner surface member 73 on the inner side of the outer casing portion is made of a member having heat resistance and nonflammability (for example, a heat-resistant metal plate), and covers at least a portion opposed to the power cable 33.

The cable cover 35 has an engagement claw portion 71 on the inner surface side, and an operation lever 72 that operates the engagement claw portion 71 on the outer surface side. These engaging claw portions 71 and the operating lever 72 constitute an insertion and detachment operation portion. In other words, the engagement claw portion 71 is engaged with the engagement convex portion (fitting receiving portion) 37 on the upper surface of the main body portion 22 in a state where the cable cover 35 is placed at a predetermined position on the upper surface of the main body portion 22, Further, it is in a mounted state in which the cable cover 35 is attached to the main body portion 22. On the other hand, by operating the operation lever 72, the engagement state of the engagement claw portion 71 and the engagement convex portion is released. Thereby, the cable cover 35 can be removed from the body portion 22.

(installation of the air supply device 1 to the ceiling)

In the above configuration, a method of attaching the air blower 1 to the ceiling will be described.

When the air blowing device 1 is attached to the ceiling, the power cable 33 is in a state of passing through the cable housing portion 62a of the cable length variable device 34 in advance. In the above state, as shown in FIGS. 11(a) and 11(b), the power cable 33 is wound around the fixed sheave 64 and the movable sheave 65. Moreover, the connector 36 is attached in advance to the connection side end part of the power supply cable 33 and the power supply connection part 32.

First, the body support portion 21 is attached to the ceiling socket 12 provided on the ceiling panel 11. Further, this is a state in which the engaging portion 26 has been attached to the main body support portion 21.

In the above case, the operator faces the main body support portion 21 from below so that the surface where the engagement portion 26 of the upper plate portion 21a of the main body support portion 21 does not exist faces the hanger portion 13 of the ceiling socket 12. The ceiling socket 12 abuts.

Then, the operator rotates the main body support portion 21 so that the protruding portion insertion hole 26a1 of the opposing portion 26a of the engaging portion 26 faces the upper protruding portion of the hanger portion 13 of the ceiling socket 12.

In the above state, the opposing portion 26a of the engaging portion 26 is located on the hanger portion 13 of the ceiling socket 12, and when the operator separates the hand from the body supporting portion 21, the opposing portion 26a of the engaging portion 26 is placed. The state is placed on the hanger portion 13 of the ceiling socket 12 so that the body support portion 21 does not fall. Moreover, the protruding portion insertion hole 26a1 of the opposing portion 26a of the engaging portion 26 is inserted into the upper protruding portion of the hanger portion 13 of the ceiling socket 12. In the above state, the position of the screw hole 21a1 of the upper plate portion 21a of the main body support portion 21 substantially matches the position of the screw fastening hole of the hanger portion 13 of the ceiling socket 12.

Next, the operator presses the main body support portion 21 against the ceiling socket 12, and the main body support portion 21 is screwed to the hanger portion 13 by screws from below. Thereby, as shown in FIG. 4, the main body support part 21 can be attached with respect to the ceiling receptacle 12.

Next, as shown in FIGS. 8 and 9, the end portion of the power cable 33 passing through the cable housing portion 62a of the cable length variable device 34 is connected to the power source connection adapter 14 from below the body support portion 21. . In the state where the above connection is completed, the cable length variable device 34 and the power cable 33 are suspended from the power source connection adapter 14.

Next, the main body portion 22 is attached to the main body support portion 21. In the above case, the operator lifts the main body portion 22 to the position of the ceiling panel 11 and moves it toward the main body support portion 21 in parallel with the lower surface of the ceiling panel 11 (see FIG. 5), thereby the main body portion 22 The support member fitting portion 31 is fitted to the body support portion 21 (see Fig. 6). In the fitted state of the two, the flange portion 21c of the main body support portion 21 is located between the opposed upright portions 31b of the support member fitting portion 31, and the upper plate portion 31a of the support member fitting portion 31 is located at the body support. Above the flange portion 21c of the portion 21. Thereby, the body portion 22 is supported by the body support portion 21.

Then, the operator rotates the main body portion 22 such that the fitting convex portion 31a2 of the upper plate portion 31a of the support member fitting portion 31 is fitted to the fitting hole 21c1 of the flange portion 21c of the main body support portion 21. Thereby, the body portion 22 is fixed so as not to rotate.

Next, the cable length variable device 34 is attached to the flange portion 21c of the body support portion 21. In the above case, as shown in FIG. 9, with respect to the cable length variable device 34, the lower case portion 63 is slid rearward, and the fitting convex portion 62b of the upper case portion 62 is exposed. In the above state, the front end portion of the upper casing portion 62 of the cable length variable device 34 is placed on the flange portion 21c, and the fitting convex portion 62b is fitted into the fitting hole 21c1 of the flange portion 21c. Then, as shown in FIG. 8, the lower case portion 63 is slid forward, and the flange portion 21c is sandwiched by the upper case portion 62 and the lower case portion 63. Thereby, the cable length variable device 34 is attached to the flange portion 21c.

Furthermore, the mounting of the cable length variable device 34 with respect to the main body support portion 21 may be performed before the mounting of the main body portion 22 with respect to the main body support portion 21.

Next, the operator pulls the end portion of the power cable 33 on the connector 36 side from the cable length variable device 34, and connects the connector 36 to the power source connecting portion 32 of the body portion 22.

In the above case, when the operator pulls the power cable 33 from the cable length variable device 34, as shown in Figs. 11(a), (b) and Figs. 12(a), (b), the movable pulley 65 moves in the pull-out direction P in the guide groove 66. Thereby, the length from the drawing-side end portion of the cable length variable device 34 to the power cable 33 of the connector 36 is, for example, only lengthened by ΔL from L1 to L2. On the other hand, after the connector 36 is connected to the power supply connecting portion 32, when the operator removes the hand from the power cable 33, the movable sheave 65 is stretched by the tension spring 67 and moved in the returning direction PB. Thereby, the length from the drawing-side end portion of the cable length variable device 34 to the power cable 33 of the connector 36 is shorter than L2.

Further, in the case where the operator pulls the power cable 33 from the cable length variable device 34 with respect to the length of the power cable 33, the connector 36 can be easily connected to the power source connecting portion 32, and By using the cable length variable device when the operator leaves the power cable 33 The pulling operation of the power cable 33 is performed 34, and the power cable 33 is set in advance to a length that is less likely to cause unnecessary slack.

Next, a cable cover 35 is attached over the cable length variable device 34 and the power cable 33. In the above case, the operation lever 72 of the cable cover 35 is operated, the engagement claw portion 71 is engaged with the engagement convex portion 37 of the main body portion 22, and the cable cover 35 is fixed to the upper surface of the main body portion 22.

The removal operation from the body portion 22 of the body support portion 21 can be carried out in a process opposite to the installation of the body portion 22 of the body support portion 21 described above.

(Advantages of air supply unit)

In the air blowing device 1 of the present embodiment, one end of the power cable 33 is connected to the power connection adapter 14 of the ceiling socket 12, and the other end is connected to the power supply of the main body 22 via the cable length varying device 34. Part 32.

Therefore, the operator can easily connect the connector 36 (the other end portion) of the power cable 33 to the power connection portion 32 of the main body portion 22 by pulling the power cable 33 from the cable length variable device 34. . Further, after the connection to the connector 36 of the power supply connecting portion 32, when the operator removes the hand from the power cable 33, the portion of the power cable 33 on the side of the connector 36 is biased by the cable length varying means 34. The cable length variable device 34 is pulled back.

Thereby, the power cable 33 of the power source connection adapter 14 whose one end is connected to the ceiling socket 12 is easily connected to the power source connection portion 32 of the main body portion 22, and is less likely to be slack after the above connection. Moreover, since slack is less likely to occur, there is no possibility that the cable cover 35 will bite into the power cable 33 when the cable cover 35 is attached.

Further, the cable length variable device 34 is fitted to the fitting hole 21c1 of the flange portion 21c of the main body support portion 21 by fitting the fitting convex portion 62b of the upper casing portion 62 to the lower casing portion 63. When sliding forward, the upper casing portion 62 and the lower casing portion 63 sandwich the flange portion 21c, so that it can be attached to the body branch. Bearing 21 (connection state). In other words, the cable length variable device 34 can be attached to the body support portion 21 in a state where the fastening member such as a screw is not used and is attached and easily removed. Thereby, the installation and removal work of the air blowing device 1 with respect to the ceiling socket 12 is easy.

Moreover, since the cable length variable device 34 can be attached to the main body support portion 21, when the power cable 33 is connected to the power source connection portion 32, the power cable 33 can be easily pulled from the cable length variable device 34. Out.

Further, the air blowing device 1 includes a cable cover 35 that covers a region of the cable length variable device 34 and the power source connecting portion 32 from above, and the inner surface member 73 of the cable cover 35 is a non-combustible member. Therefore, even in the case of fire from the power cable 33, it is possible to prevent the flame from directly contacting the ceiling.

Further, since the cable cover 35 can be easily attached and removed to the main body portion 22 by the fitting operation portion (the engagement claw portion 71 and the operation lever 72), the installation of the air blowing device 1 with respect to the ceiling socket 12 is performed. And it's easy to remove the job.

Further, in the cable length variable device 34, the power cable 33 is wound around the rotatably fixed pulley 64 and the rotatable movable pulley 65. Therefore, the power cable 33 is less susceptible to damage due to sliding contact.

[Second embodiment]

Other embodiments of the present invention will be described below based on the drawings. In the following description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and their description will be omitted.

As shown in FIGS. 11(a) and 11(b) and FIGS. 12(a) and 12(b), the cable length variable device 34 according to the first embodiment is configured to include a fixed fixed pulley 64 and a movable movable pulley. 65. On the other hand, in the air blowing device 1 of the present embodiment, the cable length variable device 34 Instead of the fixed sheave 64, the non-rotating guide member having a circular outer peripheral portion may be provided as a portion that is in contact with the power cable 33.

The operation and advantages of the air blowing device 1 having the cable length variable device 34 as described above are the same as those of the first embodiment described above.

[Third embodiment]

Hereinafter, still another embodiment of the present invention will be described based on the drawings. In the following description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and their description will be omitted.

As shown in FIGS. 11(a) and 11(b) and FIGS. 12(a) and 12(b), the cable length variable device 34 according to the first embodiment is configured to include a fixed fixed pulley 64 and a movable movable pulley. 65. On the other hand, in the air blowing device 1 of the present embodiment, the cable length variable device 34 may be configured to include a non-rotating first guiding member that is a portion that is in contact with the power cable 33 and that has a circular outer peripheral portion. Instead of the fixed pulley 64 described above. Further, the guide member that is a portion that is in contact with the power cable 33 and that has a circular outer peripheral portion may be provided, and may have a second guide that is guided to the guide groove 66 and moves similarly to the movable pulley 65. A guiding member is provided instead of the movable pulley 65 described above.

The operation and advantages of the air blowing device 1 having the cable length variable device 34 as described above are the same as those of the first embodiment described above.

〔to sum up〕

An air blower according to a first aspect of the present invention includes a main body portion 22 having a fan 47 that blows air and a motor 48 that rotates the fan 47, and is attached to the ceiling socket 12, and the one end portion is connected to the above The ceiling socket 12 and the power cable 33 connected to the main body portion 22 at the other end portion supply power to the main body portion 22, wherein the air blowing device includes: The cable length variable device 34 includes a cable housing portion 62a that accommodates a portion between the one end portion and the other end portion of the power cable 33, and the cable housing portion 62a. The cable housing portion 62a has a cable length variable portion (a fixed pulley 64, a movable pulley 65, a guide groove 66, and a tension spring 67) whose length of the power cable 31 is pulled out from the cable housing portion 62a.

According to the above configuration, the main body portion 22 including the fan 47 and the motor 48 is supplied with power from the ceiling socket 12 by the power cable 33. The cable length variable device 34 has a cable housing portion 62a and a cable length variable portion, and the cable length variable portion is a variable length of the power cable 33 that is pulled out from the cable housing portion 62a.

Therefore, the operator can easily connect the other end of the power cable 33 to the predetermined connection portion of the main body portion 22 by pulling the power cable 33 from the cable length variable device 34 (the power supply connection portion 32). ). Moreover, after the connection to the power cable 33 of the main body portion 22, the cable length variable portion receives the excess portion (slack portion) of the power cable 33 pulled out from the cable housing portion 62a, thereby accommodating It is possible to suppress the state in which the power cable 33 is in a slack state. Thereby, the connection of the power cable 33 whose one end is connected to the ceiling socket 12 to the main body 22 is easy, and it is hard to generate slack after the said connection.

Moreover, since it is difficult to cause slack of the power cable 33, for example, when the cable cover 35 covering the area where the power cable 33 exists from above is mounted, there is no doubt that the cable cover 35 bites into the power cable 33. .

In the air blower according to the first aspect of the invention, the cable length variable unit may include a first guide member (fixed pulley 64) that is fixed at a predetermined position. The power cable 33 introduced from the ceiling socket 12 to the cable housing portion 62a is in contact with a side surface (for example, a side portion of the side surface of the power cable 33 in the pull-out direction P) And passing through; the second guiding member (movable pulley 65) is provided to be able to return in the direction in which the power cable 33 is pulled out from the cable housing portion 62a and in a direction opposite to the pull-out direction P Moving in the direction PB, the power cable 33 passing through the first guiding member contacts and passes through the side surface (for example, a portion opposite to the pull-out direction P of the side surface, that is, a portion on the return direction PB side); A member (tensile spring 67) that biases the second guiding member in the returning direction PB.

According to the above configuration, the cable length variable portion includes the first guide member, the second guide member, and the biasing member. The power cable 33 introduced from the ceiling socket 12 to the cable housing portion 62a is in contact with the side surface of the first guiding member and passes through the first guiding member. The power cable 33 that has passed through the first guiding member contacts the side of the second guiding member and passes through the second guiding member. The urging member urges the second guiding member in the returning direction PB.

Therefore, when the operator pulls the power cable 33, the second guiding member is stretched by the power cable 33 to move in the pull-out direction P, so that the power cable 33 can be easily stretched.

Further, after the power cable 33 is connected to the main body portion 22, when the operator removes the hand from the power cable 33, the second guiding member is biased by the biasing member to move in the returning direction PB. Along with the movement of the second guiding member, the slack portion of the power cable 33 is pulled back into the cable length variable device 34.

Thereby, it is possible to easily suppress a state in which the power cable 33 is loosened after being connected to the main body portion 22.

In the air blower according to the third aspect of the present invention, in the second aspect, the outer peripheral portion of the second guide member (the movable sheave 65) that is in contact with the power cable 33 may be circular and rotatable.

According to the above configuration, the outer peripheral portion of the second guiding member that is in contact with the power cable 33 is circular and rotatable, so that the power cable 33 is less susceptible to damage due to sliding contact with the second guiding member.

In the air blower according to the fourth aspect of the invention, the outer peripheral portion of the first guide member (fixed pulley 64) that is in contact with the power cable 33 may be circular and rotatable.

According to the above configuration, the outer peripheral portion of the first guiding member that is in contact with the power cable 33 is circular and rotatable, so that the power cable 33 is less susceptible to damage due to sliding contact with the first guiding member.

In any one of the first to fourth aspects, the air blower according to any one of the first to fourth aspects of the present invention may be configured to include a main body support portion 21 that is attached to the ceiling socket 12 and connected In the main body portion 22, the cable length variable device 34 has a connection operation portion (a fitting convex portion 62b and a lower case portion 63), and the connection operation portion sets the cable length variable device 34 with respect to the above The connection state of the main body support portion 21 and the connection release state in which the connection state is released.

According to the above configuration, the cable length variable device 34 can be coupled (mounted) to the main body support portion 21 attached to the ceiling socket 12 by the connection operation portion. That is, the cable length variable device 34 can be attached to the body support portion 21 in a state where the fastening member such as a screw is not used and is easily attached and removed. Thereby, the installation and removal work of the air blowing device 1 with respect to the ceiling socket 12 is easy.

Further, since the cable length variable device 34 can be coupled (mounted) to the main body support portion 21, the power cable 33 can be easily changed from the cable length when the power cable 33 is connected to the power supply connection portion 32. The device 34 is pulled out.

The air blower according to a sixth aspect of the present invention may be characterized in that, in any one of the first to fifth aspects, the cable cover 35 is provided, and the cable cover 35 is opposed to the power cable 33 The inner surface has a non-combustible member and covers the area where the above-described power cable 33 exists from above.

According to the above configuration, even when the power is ignited from the power cable 33, since the cable cover 35 is present, it is possible to prevent the flame from directly contacting the ceiling.

In the air blower according to the seventh aspect of the invention, the main body portion 22 may have a fitting receiving portion (the engaging convex portion 37) in a region where the cable cover 35 is disposed on the upper surface. The cable cover 35 has a fitting operation portion (the engagement claw portion 71 and the operation lever 72) that performs a fitting operation and a fitting release operation with respect to the fitting receiving portion.

According to the configuration described above, the fixing and fixing of the cable cover 35 disposed on the upper surface of the main body portion 22 can be easily performed by the fitting operation portion.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in the different embodiments are also included in the present invention. Within the technical scope of the invention. Further, by combining the technical means separately disclosed in the respective embodiments, it is possible to form new technical features.

Claims (7)

An air blowing device includes a main body portion having a fan that blows air and a motor that rotates the fan, and is attached to the ceiling socket, and connects one end portion to the ceiling socket and the other end portion to the main body portion The power cable supplies power to the main body, and is characterized by comprising a cable length variable device having a portion between the one end portion and the other end portion of the power cable The cable accommodating portion and the cable length variable portion that is provided in the cable accommodating portion and that has a variable length of the power cable from the cable accommodating portion. The air blowing device according to claim 1, wherein the cable length variable portion includes: a first guiding member that is set to a fixed state at a predetermined position, and the cable receiving portion is introduced from the ceiling socket to the cable receiving portion The power cable is in contact with and passes through the side; the second guiding member is configured to be movable in a returning direction of the power cable from the cable receiving portion and a direction opposite to the pulling direction, that is, a returning direction, The power cable passing through the first guiding member contacts and passes through the side surface; and a biasing member biases the second guiding member in the returning direction. The air blowing device according to claim 2, wherein the outer peripheral portion of the second guiding member that is in contact with the power cable is circular and rotatable. The air blowing device of claim 3, wherein the outer peripheral portion of the first guiding member that is in contact with the power cable is circular and rotatable. The air blowing device according to any one of claims 1 to 4, further comprising: a main body supporting portion attached to the ceiling socket and connected to the main body portion, the cable length variable device having a connecting action The connection operation unit sets the cable length variable device to a connection state with respect to the body support portion. The air blowing device according to any one of claims 1 to 4, further comprising a cable cover having an incombustible member on an inner surface opposite to the power cable and covering the power cable from above The area where the line exists. The air blowing device according to claim 6, wherein the main body portion has a fitting receiving portion in a region where the cable cover is disposed on the upper surface, and the cable cover has a fitting action with respect to the fitting receiving portion And a fitting operation portion that is engaged with the release operation.