WO2020110240A1 - Ceiling fan - Google Patents

Ceiling fan Download PDF

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Publication number
WO2020110240A1
WO2020110240A1 PCT/JP2018/043839 JP2018043839W WO2020110240A1 WO 2020110240 A1 WO2020110240 A1 WO 2020110240A1 JP 2018043839 W JP2018043839 W JP 2018043839W WO 2020110240 A1 WO2020110240 A1 WO 2020110240A1
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WO
WIPO (PCT)
Prior art keywords
pipe
cover
ceiling
axial direction
hole
Prior art date
Application number
PCT/JP2018/043839
Other languages
French (fr)
Japanese (ja)
Inventor
馨 中谷
小林　義幸
翔太 酒井
哲也 福嶋
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2018/043839 priority Critical patent/WO2020110240A1/en
Priority to MYPI2021002717A priority patent/MY192566A/en
Priority to JP2020557468A priority patent/JP6983337B2/en
Publication of WO2020110240A1 publication Critical patent/WO2020110240A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/03—Ceiling bases, e.g. ceiling roses

Definitions

  • the present invention relates to a ceiling fan installed by being suspended from the ceiling.
  • the ceiling fan is hung from the ceiling of the room to get a cool sensation by blowing the air from the ceiling, to improve the air conditioning efficiency by stirring the indoor air, or to decorate the room.
  • a pipe portion whose axial direction is a vertical direction and which is fixed to a ceiling, a motor portion which is suspended by the pipe portion, a rotary blade which is rotationally driven by the motor portion, and a top surface of the motor portion are covered,
  • a ceiling fan including a conical cover portion arranged around a pipe portion.
  • the upper part of the pipe part, in which the motor part is suspended and the cover part is arranged around the motor part, is fixed to the ceiling. Then, the rotor is attached to the motor unit.
  • the motor section and the rotary blade are screwed together at the outer peripheral portion of the upper surface of the motor section. Therefore, in the ceiling fan disclosed in Patent Document 1, it is easy to perform the screw fastening work of the rotary blade to the motor unit.
  • the length of the pipe portion may be short and the distance between the top surface of the cover portion and the ceiling may be short. Since the length of the pipe part is short, even if the cover part is lifted from the upper surface of the motor part, there is a gap between the upper surface of the motor part and the cover part, which is necessary for screw fastening work between the motor part and the rotor blade using a screwdriver.
  • the cover part is configured to surround the pipe part with a plurality of parts, the number of parts is increased, and it becomes difficult to manage the removed parts. And such a problem may occur also at the time of maintenance and inspection after the installation of the ceiling fan.
  • the present invention has been made in view of the above, and in a ceiling fan that is hung from the ceiling and installed, it is an object of the present invention to obtain a ceiling fan that has good workability and maintenance inspection and is rich in design. To do.
  • a ceiling fan has a tubular pipe part that is axially vertical and can be mounted on a ceiling, and a pipe part with respect to the pipe part.
  • the ceiling fan has a rotor blade whose one end side is screwed to a fastening portion provided on an outer peripheral edge portion of a surface of the motor portion on the ceiling side in the axial direction of the pipe portion, and an axial direction of the pipe portion.
  • the cover portion has a long-hole-shaped pipe portion insertion hole through which the pipe portion is inserted, which is fixed to the pipe portion with a screw from a direction orthogonal to the axial direction of the pipe portion to cover the fastening portion.
  • the ceiling fan according to the present invention has an effect that, in a ceiling fan that is hung from the ceiling and installed, the workability and the maintenance/inspection after the work are good, and a ceiling fan with a rich design is obtained.
  • FIG. 1 is a perspective view of a main part of a ceiling fan according to a first embodiment of the present invention.
  • 1 is a perspective view of a main part showing a peripheral part of a motor part in the ceiling fan shown in FIG.
  • Sectional drawing of the principal part which shows the screw fastening hole of the pipe part in the ceiling fan shown in FIG. 1 an exploded perspective view showing a state where the pipe portion is inserted into the cover portion.
  • FIG. 3 is a perspective view showing a cover portion according to the second embodiment of the present invention.
  • FIG. 1 is a perspective view of a main part of a ceiling fan 1 according to a first embodiment of the present invention. In FIG. 1, internal parts are shown with a part cut away.
  • FIG. 2 is a perspective view of essential parts showing a peripheral portion of the motor unit 4 in the ceiling fan 1 shown in FIG.
  • FIG. 3 is a perspective view showing the cover portion 7 of the ceiling fan 1 shown in FIG.
  • FIG. 4 is a cross-sectional view of essential parts showing the screw fastening holes 22 of the pipe portion 2 in the ceiling fan 1 shown in FIG. 1.
  • FIG. 5 is an exploded perspective view showing a state in which the pipe portion 2 is inserted into the cover portion 7 in the ceiling fan 1 shown in FIG.
  • FIG. 1 is a perspective view of a main part of a ceiling fan 1 according to a first embodiment of the present invention. In FIG. 1, internal parts are shown with a part cut away.
  • FIG. 2 is a perspective view of essential parts showing a peripheral portion of the motor unit 4 in the ceiling fan 1 shown
  • FIG. 6 is an exploded perspective view showing a state in which the cover portion 7 in which the pipe portion 2 is inserted is tilted in the ceiling fan 1 shown in FIG.
  • the up-down direction in the following is the up-down direction when the ceiling fan 1 is installed.
  • the horizontal direction below is the horizontal direction when the ceiling fan 1 is installed.
  • the ceiling fan 1 includes a cylindrical pipe portion 2 which can be attached to the ceiling with its axial direction being a vertical direction, and a ceiling-mounting hanger provided on the ceiling side in the axial direction of the pipe portion 2. And a shaft portion 3 fixed to the pipe portion 2 on the side opposite to the ceiling in the axial direction of the pipe portion 2, and to the shaft portion 3 on the side opposite to the pipe portion 2 in the axial direction of the pipe portion 2.
  • a motor unit 4 which is a fixed power source, a rotary blade 5 whose one end side is screwed to an outer peripheral edge portion of a surface of the pipe unit 2 in the axial direction of the pipe unit 2 in the motor unit 4, and is rotationally driven, and a motor unit.
  • the cover holding portion 6 into which the pipe portion 2 is inserted and fixed to the connecting portion on the ceiling side of the pipe portion 4, and the pipe portion 2 through the pipe portion 2 on the ceiling side of the motor portion 4 in the axial direction of the pipe portion 2 are inserted.
  • the cover portion 7 is fixed to the outer peripheral portion of the motor portion 4, and the hanger cover portion 8 is inserted into the pipe portion 2 so as to cover the ceiling mounting hanger portion 10.
  • the pipe portion 2 has a cylindrical shape, and is arranged such that the central axis extends vertically when the ceiling fan 1 is installed, that is, when the ceiling fan 1 is installed, the axial direction of the central axis is vertical.
  • a ceiling mounting hanger portion 10 that is hooked on a hook mounted on the ceiling is provided on the ceiling side in the axial direction of the central axis of the pipe portion 2.
  • the ceiling fan 1 is installed on the ceiling by attaching the ceiling-mounting hanger portion 10 to a J-shaped or U-shaped hook provided on the ceiling in advance.
  • the hook mounting portion 10 a of the ceiling mounting hanger portion 10 is covered by the hanger cover portion 8.
  • the pipe part 2 is provided with a wiring outlet 11 which is a hole penetrating in the horizontal direction on the side opposite to the ceiling. That is, when the ceiling fan 1 is installed, the pipe portion 2 is arranged such that the axial direction of the central axis of the wiring outlet 11 is horizontal. A cover holding portion 6 is fixed to the pipe portion 2 above the wiring outlet 11 by screw fastening.
  • a pair of through-holes that are orthogonal to the axial direction of the central axis of the wiring outlet 11 when viewed from the axial direction of the central axis of the pipe portion 2 and penetrate in the horizontal direction. And has a shaft portion connecting hole (not shown) for connecting the shaft portion 3.
  • the pipe portion 2 is provided with a screw fastening hole 22 used for screw connection with the cover portion 7.
  • the screw fastening hole 22 is provided on the outer peripheral surface at a position corresponding to a cover portion fixing hole 14 of the cover portion 7, which will be described later, in the axial direction of the central axis of the pipe portion 2.
  • the shaft part 3 is fixed to the pipe part 2 with the central axis being the vertical direction.
  • An unillustrated pipe connecting hole which is a hole penetrating in the horizontal direction, is provided in the upper portion of the shaft portion 3.
  • An electric component holder 9 capable of holding electric components such as the phase advance capacitor 12 is attached to the upper portion of the shaft portion 3 while avoiding the pipe portion connecting hole.
  • the shaft part 3 and the pipe part 2 are fixed by bolts and nuts. That is, regarding the shaft portion 3 and the pipe portion 2, the upper portion of the shaft portion 3 is inserted into the lower portion of the pipe portion 2, and the shaft portion connecting hole provided in the pipe portion 2 and the pipe portion connecting hole of the shaft portion 3 are Are connected to each other, a connecting bolt is inserted into the connecting hole of the pipe portion 2 and the connecting hole of the shaft portion 3 and fixed by fixing with a nut.
  • the central axis of the shaft portion 3 and the central axis of the pipe portion 2 are arranged coaxially.
  • a motor unit 4 which is an electric motor that drives the rotor blades 5, is fixed to the lower end of the shaft unit 3.
  • the motor unit 4 is arranged on the side opposite to the ceiling in the axial direction of the central axis of the pipe unit 2, that is, below the pipe unit 2 in the vertical direction.
  • the motor unit 4 has a circular shape in a top view.
  • the rotation axis of the motor section 4 and the central axis of the shaft section 3 are arranged coaxially.
  • a power supply line (not shown) of the motor unit 4 passes through a hollow portion in the pipe unit 2 and is drawn to the back of the ceiling and connected to a power supply (not shown).
  • the rotary blades 5 are radially arranged at even intervals on the outer circumference of the motor unit 4.
  • the rotor blade 5 is screwed into the rotor blade fixing hole 20 provided on the upper surface 4a of the motor portion 4, that is, the ceiling-side surface, by a screw 21 so that the outer peripheral edge portion of the upper surface 4a of the motor portion 4 is fixed.
  • One end is fixed to.
  • the rotor blade fixing hole 20 is a fastening portion to which the rotor blade 5 is screwed and fastened, and is covered by the cover portion 7.
  • the upper surface 4a of the motor unit 4 is a surface parallel to the horizontal direction when the ceiling fan 1 is installed.
  • the rotor blade fixing hole 20 is provided in a region of the upper surface 4 a of the motor portion 4 on the outer peripheral side in the radial direction of the motor portion 4.
  • the ceiling fan 1 blows air from the ceiling side to the floor surface or from the floor surface side to the ceiling by rotating the rotating blades 5.
  • the case where three rotary blades 5 are provided is shown, but the number of rotary blades 5 is not limited.
  • the number of rotor blades 5 included in the ceiling fan 1 may be four, for example.
  • the outer peripheral sides of the motor section 4 and the pipe section 2 are covered with a cover section 7 which is a design of the ceiling fan 1.
  • the cover portion 7 has a hollow conical shape whose opening area increases from the upper end toward the lower end. Further, the outer shape of the cover portion 7 has a shape that is rich in design and is continuous with the outer shape of the motor portion 4 with the outer side surface expanding from the upper end to the lower end in the radial direction of the truncated cone shape. More specifically, the cover portion 7 has a hollow truncated cone shape whose opening area increases from the upper end to the lower end.
  • the central axis of the cover portion 7 and the central axis of the pipe portion 2 are arranged coaxially.
  • the cover part 7 has a pipe part insertion hole 15a, which is a through hole for inserting the pipe part 2, in the upper end surface part 7a.
  • the pipe portion insertion hole 15a has a long hole shape that penetrates the upper end surface portion 7a of the cover portion 7 in the thickness direction.
  • the position of the pipe part insertion hole 15a is such that the pipe part 2 is inserted into the pipe part insertion hole 15a in a state where the central axis of the cover part 7 and the central axis of the pipe part 2 are coaxial with each other in the upper end surface part 7a of the cover part 7. Positioned as possible.
  • the cover portion 7 is provided with the cover protrusion 13 on the upper side of the hollow portion of the cover portion 7, which is the rear side of the design surface 7b which is the outer side surface of the cover portion 7 and the rear side of the upper end surface portion 7a of the cover portion 7. ing.
  • the cover protrusion 13 positions the cover 7 in the vertical direction.
  • the pipe portion 2 is inserted into the cover portion 7 from the pipe portion insertion hole 15a, and the cover protrusion portion 13 abuts the cover holding portion 6 to position the cover portion 7 in the vertical direction.
  • a hole axis direction is provided on the upper side surface of the cover portion 7 in a direction orthogonal to the axial direction of the central axis of the pipe portion 2, and the cover portion 7 is screwed to the pipe portion 2 using a screw 23.
  • a cover portion fixing hole 14 that is a screw hole used for this purpose is formed. That is, when the ceiling fan 1 is installed, the cover part fixing hole 14 has a horizontal axis in the hole axis direction.
  • a groove portion 7c is provided at an outer peripheral corner between the upper end surface portion 7a and the design surface 7b of the cover portion 7 for passing a screw when the cover portion 7 is screwed to the pipe portion 2.
  • the groove portion 7c is provided in the radial direction of the truncated cone shape from the upper end surface portion 7a side toward the central axis side of the cover portion 7.
  • a groove inner side surface 7d connected to the upper end surface portion 7a and the design surface 7b is provided along the vertical direction. That is, the end of the groove 7c on the central axis side of the cover 7 is closed.
  • the cover fixing hole 14 is provided in the groove inner surface 7d so as to penetrate the groove inner surface 7d in the thickness direction. Therefore, the hole axis direction of the cover portion fixing hole 14 is parallel to the thickness direction of the groove inner side surface 7d and parallel to the horizontal direction.
  • the cover portion 7 is fixed by being screwed with the screw 23 in a state where the cover portion fixing hole 14 and the screw fastening hole 22 provided on the outer peripheral surface of the pipe portion 2 are communicated with each other.
  • the cover portion 7 includes a portion of the pipe portion 2 that is fixed to the shaft portion 3, the shaft portion 3, the upper surface 4a of the motor portion 4, the rotor blade fixing hole 20, the cover holding portion 6, and the electric portion. It covers the component holder 9, the wiring outlet 11, and the bolts and nuts that are the connecting portions.
  • the ceiling-mounted hanger portion 10 covered by the hanger cover portion 8 is attached to a hook provided on the ceiling.
  • the shaft portion 3 fixed to the motor portion 4 is fixed to the pipe portion 2 on the side opposite to the ceiling side in the axial direction of the central axis. Further, between the shaft portion 3 and the hanger cover portion 8, the cover portion 7 in which the pipe portion 2 is passed through the pipe portion insertion hole 15a is arranged. The cover portion 7 and the pipe portion 2 are not screwed together.
  • the pipe portion insertion hole 15a of the cover portion 7 has a long hole shape that penetrates the upper end surface portion 7a of the cover portion 7 in the thickness direction. Since the pipe portion insertion hole 15a has a long hole shape, the pipe portion 2 is inserted into the pipe portion insertion hole 15a and the cover portion 7 is separated from the upper surface 4a of the motor portion 4 as shown in FIG.
  • the cover 7 can be tilted as shown in FIG. That is, the cover portion 7 can be floated from the upper surface 4a of the motor portion 4 so that the axial direction of the central axis of the cover portion 7 is different from the axial direction of the central axis of the pipe portion 2.
  • the ceiling fan 1 can easily perform the screw fastening operation of the rotor blade 5 for screwing the rotor blade 5 into the rotor blade fixing hole 20 even when the length of the pipe portion 2 is short, for example.
  • the workability of screw fastening of the rotary blade 5 is good, and the workability is good. That is, in the ceiling fan 1, the screw fastening work of the rotor blades 5 to the upper surface 4 a of the motor unit 4 is not easily affected by the length of the pipe unit 2.
  • the length in the longitudinal direction of the long hole shape of the pipe insertion hole 15a is not particularly limited as long as the above effects can be obtained.
  • the length in the lateral direction of the long hole shape of the pipe portion insertion hole 15a is slightly larger than the diameter of the pipe portion 2 within a range in which the pipe portion 2 can be inserted and the pipe portion insertion hole 15a can be tilted. It is taken as a dimension.
  • the pipe portion insertion hole 15a has a long hole shape, when the pipe portion 2 is inserted into the pipe portion insertion hole 15a and the cover portion 7 is separated from the upper surface 4a of the motor portion 4, the cover portion 7 is formed. Instead of tilting, it is also possible to shift the cover portion 7 in the radial direction of the truncated cone shape of the cover portion 7. In this case as well, the same effect as when the cover portion 7 is tilted as described above can be obtained.
  • the cover portion 7 is arranged in the axial direction of the central axes of the pipe portion 2 and the cover portion 7 in a state where the cover portion fixing hole 14 and the screw fastening hole 22 provided on the outer peripheral surface of the pipe portion 2 are communicated with each other. From the direction orthogonal to the opposite direction, the screws 23 are screwed and fixed using the screws 23. Thereby, even if the pipe part insertion hole 15a of the cover part 7 has a long hole shape, the pipe part 2 can be fixed at an appropriate position in the surface direction of the upper end surface part 7a.
  • the cover portion fixing hole 14 is provided on the outer peripheral surface of the cover portion 7 by providing the cover portion fixing hole 14 on the groove inner side surface 7d located on the central axis side of the cover portion 7 from the outer peripheral surface of the cover portion 7. Compared with the case, the cover portion 7 and the pipe portion 2 can be screwed at a position closer to the pipe portion 2. Thereby, the cover part 7 can be reliably fixed at an appropriate position with respect to the pipe part 2.
  • the groove portion 7c provided in the cover portion 7 has a function of guiding the screw 23 to the cover portion fixing hole 14 when the screw 23 is inserted into the cover portion fixing hole 14, the workability of the ceiling fan 1 is improved. Contribute to the improvement of.
  • the outer appearance of the cover portion 7 and the motor portion 4 is made smooth and continuous without having a large unevenness, whereby the design is improved, and the screw 21 for fastening the rotary blade 5 is screwed. Since the screws 21 are covered with the cover portion 7 so that the screw heads are visually invisible, the design is improved, and the appearance with rich design is realized. Further, since there is no restriction for exposing the region of the motor portion 4 where the rotary blades 5 are screwed together from the cover portion 7, the cover portion 7 having a high degree of freedom in design can be realized.
  • the longitudinal direction of the long hole shape of the pipe portion insertion hole 15a is parallel to the hole axis direction of the cover portion fixing hole 14 shown by the arrow A in FIG. It is preferable that Since the longitudinal direction of the long hole shape of the pipe part insertion hole 15a and the hole axial direction of the cover part fixing hole 14 are the same, the cover part 7 is fixed to the pipe part 2 by screwing. However, it is possible to suppress the rotation of the cover portion 7 due to the screw tightening torque, that is, the tightening torque of the screw 23.
  • the same effect as above can be obtained. That is, in the ceiling fan 1, the inspection work of the upper surface 4a of the motor unit 4 is less affected by the length of the pipe unit 2, and the maintenance and inspection after installation is easy.
  • the pipe part insertion hole of the cover part is circular, it is for fixing the rotor blades provided on the upper surface of the motor part.
  • screwing the rotor blade into the hole it is necessary to lift the cover portion to a height at which the rotor blade can be screwed with a screwdriver.
  • the length of the pipe portion varies depending on the specifications of the ceiling fan.
  • the ceiling fan having such a configuration removes the ceiling-mounting hanger portion assembled at the time of shipment from the pipe portion, removes the hanger cover portion and the cover portion from the pipe portion, and then inserts them into the rotor blade fixing holes. Since it is necessary to perform the screw fastening business of the rotor blade, it can be said that it is a ceiling fan with extremely poor workability.
  • the pipe portion 2 is short, and the bottom surface of the hanger cover portion 8 and the upper end surface portion 7a of the cover portion 7 cannot be screwed to the rotary blade 5 using a screwdriver. Even if they are close to each other, it is possible to fix the rotor blade provided on the upper surface 4a of the motor unit 4 by inclining the cover unit 7 or shifting the cover unit 7 in the radial direction of the truncated cone shape of the cover unit 7.
  • the use hole 20 can be exposed and can be visually recognized. Therefore, the ceiling fan 1 can configure the ceiling fan 1 with a rich design without impairing the workability of the rotary blades 5.
  • the shape of the cover 7 is a hollow conical shape
  • the shape of the cover 7 is not limited to the conical shape.
  • the shape of the cover portion 7 may be any tubular shape that allows the pipe portion 2 to be inserted therethrough, and may be, for example, a hollow quadrangular pyramid shape, or more specifically, a hollow quadrangular truncated pyramid shape.
  • the ceiling fan 1 according to the first embodiment has an effect that the workability and the maintenance/inspection after the work are good, and a ceiling fan with a rich design is obtained.
  • FIG. 7 is a perspective view showing the cover portion 71 according to the second embodiment of the present invention.
  • the cover portion 71 according to the second embodiment may be used instead of the cover portion 7.
  • the cover part 71 has a pipe part insertion hole 15b instead of the pipe part insertion hole 15a in the cover part 7.
  • the pipe part insertion hole 15b has a long hole shape that penetrates the upper end surface part 7a of the cover part 7 in the thickness direction.
  • the longitudinal direction of the long hole shape of the pipe portion insertion hole 15b is indicated by an arrow B in FIG. 7, and the hole axial direction of the cover portion fixing hole 14 and the cover portion are indicated by an arrow A.
  • the upper end surface portion 7a of 7 is orthogonal to each other.
  • the pipe portion insertion hole 15b has a long hole shape different from that of the pipe portion insertion hole 15a in the longitudinal direction, but since the pipe portion insertion hole 15b has the long hole shape, the cover portion 7 can be tilted while the pipe portion 2 is inserted. Become. Thereby, also when using the cover part 71 having the pipe part insertion hole 15b, the rotary blade fixing hole 20 provided on the upper surface 4a of the motor part 4 is used as in the case of using the cover part 7 having the pipe part insertion hole 15a. Can be easily visually recognized, and even with a ceiling fan having a short length of the pipe portion 2, the screw fastening work of the rotary blade 5 is facilitated.
  • the cover portion 7 is not fixed. Since it can be realized only by abutting the screw 23 on the pipe portion 2, it can be fixed at an arbitrary height. Further, there is no need to provide the screw fastening hole 22 used for screw connection with the cover portion 7 in the pipe portion 2, which is necessary when the cover portion 7 is used, and the cover portion fixing hole of the cover portion 7 is not necessary. There is also no need to work to connect 14 and the screw fastening hole 22 of the pipe portion. Therefore, by using the cover portion 71, it is possible to suppress the processing cost of the components of the ceiling fan 1 and produce the ceiling fan 1 at low cost, and also the cover portion 7 can be easily fixed.
  • the cover portion 71 according to the second embodiment is used in the ceiling fan 1 according to the first embodiment, as in the case of the first embodiment, the workability and the maintenance checkability after the work are performed. It has the effect of obtaining a ceiling fan with good design and rich design.
  • the ceiling fan 1 can be produced at a lower cost than when the cover part 7 is used, and the cover part 7 is also easy. Can be fixed to.
  • the pipe part insertion holes 15a and 15b provided in the cover part 7 have a long hole shape.
  • the outer shape of the cover portion 7 that is responsible for the design of the ceiling fan 1 is continuous with the outer shape of the motor portion 4 and the rotor blade fixing holes 20 are covered with the cover portion 7, and the length of the pipe portion 2 is short.
  • the rotary blade fixing hole 20 provided on the upper portion of the motor portion 4 can be visually recognized. Therefore, it is possible to obtain the ceiling fan 1 which has high workability of screwing the rotor blades 5 and maintenance and inspection of the upper surface 4a of the motor portion 4 and the like, and which is rich in design.

Abstract

A ceiling fan (1) is provided with a pipe part (2) and a motor part (4) which are fixed to a shaft part (3), the motor part being on the side opposite to the pipe part (2) in the axial direction. Furthermore, the ceiling fan (1) is provided with: rotary vanes (5) which are each rotatably driven with one end screw-fastened to a corresponding fastening part provided on the outer peripheral edge of a ceiling-side surface of the motor part (4) in the axial direction of the pipe part (2); and a cover part (7) through which the pipe part (2) is inserted on the ceiling side relative to the motor part (4) in the axial direction of the pipe part (2) and which is fixed to the pipe part (2). The cover part (7) has, in the upper end surface (7a), an elongated pipe-part insertion hole (15a) through which the pipe part (2) is inserted, is fixed to the pipe part (2) with a screw from a direction orthogonal to the axial direction of the pipe part (2), and covers the fastening part.

Description

天井扇風機Ceiling fan
　本発明は、天井から吊り下げられて設置される天井扇風機に関する。 The present invention relates to a ceiling fan installed by being suspended from the ceiling.
　天井扇風機は、天井から送出される風を浴びて涼感を得るため、室内空気の攪拌による空調効率の向上のため、あるいは室内の装飾のために、室内の天井から吊り下げられて設置される。特許文献１には、軸方向を鉛直方向とされて天井に固定されるパイプ部と、パイプ部に吊り下げられるモータ部と、モータ部によって回転駆動される回転翼と、モータ部上面を覆い、パイプ部の周囲に配置される円錐形状のカバー部と、を備えた天井扇風機が開示されている。 　The ceiling fan is hung from the ceiling of the room to get a cool sensation by blowing the air from the ceiling, to improve the air conditioning efficiency by stirring the indoor air, or to decorate the room. In Patent Document 1, a pipe portion whose axial direction is a vertical direction and which is fixed to a ceiling, a motor portion which is suspended by the pipe portion, a rotary blade which is rotationally driven by the motor portion, and a top surface of the motor portion are covered, There is disclosed a ceiling fan including a conical cover portion arranged around a pipe portion.
　一般的に、天井扇風機においては、モータ部が吊り下げられるとともに周囲にカバー部が配置された状態とされたパイプ部の上部が、天井に固定される。その後、モータ部に回転翼が取り付けられる。 Generally, in the ceiling fan, the upper part of the pipe part, in which the motor part is suspended and the cover part is arranged around the motor part, is fixed to the ceiling. Then, the rotor is attached to the motor unit.
　特許文献１に開示された天井扇風機においては、モータ部の上面の外周部においてモータ部と回転翼とがねじ締結されている。このため、特許文献１に開示された天井扇風機は、モータ部への回転翼のねじ締結作業が容易である。 In the ceiling fan disclosed in Patent Document 1, the motor section and the rotary blade are screwed together at the outer peripheral portion of the upper surface of the motor section. Therefore, in the ceiling fan disclosed in Patent Document 1, it is easy to perform the screw fastening work of the rotary blade to the motor unit.
特開２０１８－９１２５７号公報Japanese Patent Laid-Open No. 2018-91257
　しかしながら、特許文献１に開示された天井扇風機においては、モータ部の上面の外周部においてモータ部と回転翼とがねじ締結されているため、回転翼を締結しているねじ頭が外観上、視認できることから意匠性が損なわれる。 However, in the ceiling fan disclosed in Patent Document 1, since the motor portion and the rotary blade are screw-fastened on the outer peripheral portion of the upper surface of the motor portion, the screw head fastening the rotary blade is visually visible. Because it is possible, the design is lost.
　一方、回転翼を締結しているねじ頭が視認できないようにモータ部と回転翼とのねじ締結部をカバー部で覆ってしまうことが考えられる。しかしながら、天井扇風機の設置環境、または天井扇風機の仕様によっては、たとえばパイプ部の長さが短く、カバー部の天面と天井との距離が近くなる場合がある。パイプ部の長さが短いため、カバー部をモータ部の上面から浮かせてもモータ部の上面とカバー部との間にドライバーを用いたモータ部と回転翼とのねじ締結作業に必要な隙間が確保できない場合、カバー部を浮かせることが困難となり、カバー部を変形させる、カバー部を取り外すなどの作業が発生し、天井扇風機の施工性が低下する。さらに、カバー部が、パイプ部を複数の部品で囲うような構成とされている場合には、部品点数が増えているため、外した部品の管理が大変になる。そして、このような問題は、天井扇風機の設置時後における保守点検時にも生じうる。 On the other hand, it is possible to cover the screw fastening part between the motor and the rotor with a cover so that the screw head fastening the rotor is not visible. However, depending on the installation environment of the ceiling fan or the specifications of the ceiling fan, for example, the length of the pipe portion may be short and the distance between the top surface of the cover portion and the ceiling may be short. Since the length of the pipe part is short, even if the cover part is lifted from the upper surface of the motor part, there is a gap between the upper surface of the motor part and the cover part, which is necessary for screw fastening work between the motor part and the rotor blade using a screwdriver. If it cannot be secured, it becomes difficult to float the cover part, and work such as deforming the cover part and removing the cover part occurs, which reduces the workability of the ceiling fan. Further, when the cover part is configured to surround the pipe part with a plurality of parts, the number of parts is increased, and it becomes difficult to manage the removed parts. And such a problem may occur also at the time of maintenance and inspection after the installation of the ceiling fan.
　本発明は、上記に鑑みてなされたものであって、天井から吊り下げられて設置される天井扇風機において、施工性および保守点検性が良く、意匠性に富んだ天井扇風機を得ることを目的とする。 The present invention has been made in view of the above, and in a ceiling fan that is hung from the ceiling and installed, it is an object of the present invention to obtain a ceiling fan that has good workability and maintenance inspection and is rich in design. To do.
　上述した課題を解決し、目的を達成するために、本発明にかかる天井扇風機は、軸方向を鉛直方向とされて天井に取り付け可能な筒状のパイプ部と、パイプ部に対して、パイプ部の軸方向における天井と反対側に固定されるシャフト部と、シャフト部に対して、パイプ部の軸方向におけるパイプ部と反対側に固定されるモータ部と、を備える。また、天井扇風機は、モータ部におけるパイプ部の軸方向における天井側の面の外周縁部に設けられた締結部に一端部側がねじ締結されて回転駆動される回転翼と、パイプ部の軸方向におけるモータ部よりも天井側においてパイプ部が挿通されてパイプ部に固定されるカバー部と、を備える。カバー部は、パイプ部が挿通する長孔形状のパイプ部挿通孔が上端面部に設けられ、パイプ部の軸方向に対して直交する方向からねじによりパイプ部に固定され、締結部を覆う。 In order to solve the above-mentioned problems and to achieve the object, a ceiling fan according to the present invention has a tubular pipe part that is axially vertical and can be mounted on a ceiling, and a pipe part with respect to the pipe part. A shaft portion fixed to the side opposite to the ceiling in the axial direction, and a motor portion fixed to the shaft portion on the side opposite to the pipe portion in the axial direction with respect to the shaft portion. Further, the ceiling fan has a rotor blade whose one end side is screwed to a fastening portion provided on an outer peripheral edge portion of a surface of the motor portion on the ceiling side in the axial direction of the pipe portion, and an axial direction of the pipe portion. And a cover part that is fixed to the pipe part by inserting the pipe part on the ceiling side of the motor part. The cover portion has a long-hole-shaped pipe portion insertion hole through which the pipe portion is inserted, which is fixed to the pipe portion with a screw from a direction orthogonal to the axial direction of the pipe portion to cover the fastening portion.
　本発明にかかる天井扇風機は、天井から吊り下げられて設置される天井扇風機において、施工性および施工後の保守点検性が良く、意匠性に富んだ天井扇風機が得られる、という効果を奏する。 The ceiling fan according to the present invention has an effect that, in a ceiling fan that is hung from the ceiling and installed, the workability and the maintenance/inspection after the work are good, and a ceiling fan with a rich design is obtained.
本発明の実施の形態１にかかる天井扇風機の要部斜視図1 is a perspective view of a main part of a ceiling fan according to a first embodiment of the present invention. 図１に示す天井扇風機におけるモータ部の周辺部を示す要部斜視図1 is a perspective view of a main part showing a peripheral part of a motor part in the ceiling fan shown in FIG. 図１に示す天井扇風機におけるカバー部を示す斜視図A perspective view showing a cover portion in the ceiling fan shown in FIG. 1. 図１に示す天井扇風機におけるパイプ部のねじ締結用孔を示す要部断面図Sectional drawing of the principal part which shows the screw fastening hole of the pipe part in the ceiling fan shown in FIG. 図１に示す天井扇風機においてパイプ部がカバー部に挿入された状態を示す分解斜視図In the ceiling fan shown in FIG. 1, an exploded perspective view showing a state where the pipe portion is inserted into the cover portion. 図１に示す天井扇風機においてパイプ部が挿入されたカバー部が傾けられた状態を示す分解斜視図In the ceiling fan shown in FIG. 1, an exploded perspective view showing a state in which a cover portion into which a pipe portion is inserted is tilted. 本発明の実施の形態２にかかるカバー部を示す斜視図FIG. 3 is a perspective view showing a cover portion according to the second embodiment of the present invention.
　以下に、本発明の実施の形態にかかる天井扇風機を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。 A ceiling fan according to an embodiment of the present invention will be described in detail below with reference to the drawings. The present invention is not limited to this embodiment.
実施の形態１．
　図１は、本発明の実施の形態１にかかる天井扇風機１の要部斜視図である。図１においては、一部を切り欠いて内部部品を示している。図２は、図１に示す天井扇風機１におけるモータ部４の周辺部を示す要部斜視図である。図３は、図１に示す天井扇風機１におけるカバー部７を示す斜視図である。図４は、図１に示す天井扇風機１におけるパイプ部２のねじ締結用孔２２を示す要部断面図である。図５は、図１に示す天井扇風機１においてパイプ部２がカバー部７に挿入された状態を示す分解斜視図である。図６は、図１に示す天井扇風機１においてパイプ部２が挿入されたカバー部７が傾けられた状態を示す分解斜視図である。なお、以下における上下方向は、天井扇風機１の設置時における上下方向である。また、以下における水平方向は、天井扇風機１の設置時における水平方向である。 Embodiment 1.
FIG. 1 is a perspective view of a main part of a ceiling fan 1 according to a first embodiment of the present invention. In FIG. 1, internal parts are shown with a part cut away. FIG. 2 is a perspective view of essential parts showing a peripheral portion of the motor unit 4 in the ceiling fan 1 shown in FIG. FIG. 3 is a perspective view showing the cover portion 7 of the ceiling fan 1 shown in FIG. FIG. 4 is a cross-sectional view of essential parts showing the screw fastening holes 22 of the pipe portion 2 in the ceiling fan 1 shown in FIG. 1. FIG. 5 is an exploded perspective view showing a state in which the pipe portion 2 is inserted into the cover portion 7 in the ceiling fan 1 shown in FIG. FIG. 6 is an exploded perspective view showing a state in which the cover portion 7 in which the pipe portion 2 is inserted is tilted in the ceiling fan 1 shown in FIG. In addition, the up-down direction in the following is the up-down direction when the ceiling fan 1 is installed. Further, the horizontal direction below is the horizontal direction when the ceiling fan 1 is installed.
　本実施の形態１にかかる天井扇風機１は、軸方向を鉛直方向とされて天井に取り付け可能な筒状のパイプ部２と、パイプ部２の軸方向における天井側に設けられた天井取り付け用ハンガー部１０と、パイプ部２に対してパイプ部２の軸方向における天井と反対側に固定されたシャフト部３と、シャフト部３に対してパイプ部２の軸方向におけるパイプ部２と反対側に固定された動力源であるモータ部４と、モータ部４におけるパイプ部２の軸方向における天井側の面の外周縁部に一端部側がねじ締結されて回転駆動される回転翼５と、モータ部４よりも天井側において、パイプ部２が挿通されて連結部に固定されるカバー保持部６と、パイプ部２の軸方向におけるモータ部４よりも天井側においてパイプ部２が挿通されてパイプ部２に固定されてモータ部４の外周縁部を覆うカバー部７と、パイプ部２が挿入されて天井取り付け用ハンガー部１０を隠すように固定されるハンガーカバー部８と、を備える。 The ceiling fan 1 according to the first embodiment includes a cylindrical pipe portion 2 which can be attached to the ceiling with its axial direction being a vertical direction, and a ceiling-mounting hanger provided on the ceiling side in the axial direction of the pipe portion 2. And a shaft portion 3 fixed to the pipe portion 2 on the side opposite to the ceiling in the axial direction of the pipe portion 2, and to the shaft portion 3 on the side opposite to the pipe portion 2 in the axial direction of the pipe portion 2. A motor unit 4 which is a fixed power source, a rotary blade 5 whose one end side is screwed to an outer peripheral edge portion of a surface of the pipe unit 2 in the axial direction of the pipe unit 2 in the motor unit 4, and is rotationally driven, and a motor unit. 4, the cover holding portion 6 into which the pipe portion 2 is inserted and fixed to the connecting portion on the ceiling side of the pipe portion 4, and the pipe portion 2 through the pipe portion 2 on the ceiling side of the motor portion 4 in the axial direction of the pipe portion 2 are inserted. The cover portion 7 is fixed to the outer peripheral portion of the motor portion 4, and the hanger cover portion 8 is inserted into the pipe portion 2 so as to cover the ceiling mounting hanger portion 10.
　パイプ部２は、円筒形状を有し、天井扇風機１の設置時に中心軸が上下方向に延びるように、すなわち天井扇風機１の設置時に中心軸の軸方向が鉛直方向とされて配置される。パイプ部２の中心軸の軸方向における天井側には、天井に取り付けられたフックに引っ掛けられる天井取り付け用ハンガー部１０が設けられている。天井扇風機１は、予め天井に設けられたＪ形状またはＵ形状を有するフックに天井取り付け用ハンガー部１０が取り付けられることで、天井に設置される。天井取り付け用ハンガー部１０のフック取り付け部１０ａは、ハンガーカバー部８によって覆われている。 The pipe portion 2 has a cylindrical shape, and is arranged such that the central axis extends vertically when the ceiling fan 1 is installed, that is, when the ceiling fan 1 is installed, the axial direction of the central axis is vertical. A ceiling mounting hanger portion 10 that is hooked on a hook mounted on the ceiling is provided on the ceiling side in the axial direction of the central axis of the pipe portion 2. The ceiling fan 1 is installed on the ceiling by attaching the ceiling-mounting hanger portion 10 to a J-shaped or U-shaped hook provided on the ceiling in advance. The hook mounting portion 10 a of the ceiling mounting hanger portion 10 is covered by the hanger cover portion 8.
　また、パイプ部２は、水平方向に貫通した孔である配線出口１１を、天井と反対側に備えている。すなわち、パイプ部２は、天井扇風機１の設置時に、配線出口１１の中心軸の軸方向が水平方向とされて配置される。パイプ部２における配線出口１１の上方には、カバー保持部６がねじ締結によって固定されている。 Also, the pipe part 2 is provided with a wiring outlet 11 which is a hole penetrating in the horizontal direction on the side opposite to the ceiling. That is, when the ceiling fan 1 is installed, the pipe portion 2 is arranged such that the axial direction of the central axis of the wiring outlet 11 is horizontal. A cover holding portion 6 is fixed to the pipe portion 2 above the wiring outlet 11 by screw fastening.
　また、パイプ部２における配線出口１１の下方には、パイプ部２の中心軸の軸方向から見た場合において配線出口１１の中心軸の軸方向と直交し、水平方向に貫通した一対の貫通孔であり、シャフト部３を連結するための不図示のシャフト部連結用孔を備えている。また、図４に示すように、パイプ部２には、カバー部７とのねじ連結に用いられるねじ締結用孔２２が設けられている。ねじ締結用孔２２は、パイプ部２の中心軸の軸方向において後述するカバー部７のカバー部固定用孔１４に対応する位置の外周面に設けられている。 Further, below the wiring outlet 11 in the pipe portion 2, a pair of through-holes that are orthogonal to the axial direction of the central axis of the wiring outlet 11 when viewed from the axial direction of the central axis of the pipe portion 2 and penetrate in the horizontal direction. And has a shaft portion connecting hole (not shown) for connecting the shaft portion 3. Further, as shown in FIG. 4, the pipe portion 2 is provided with a screw fastening hole 22 used for screw connection with the cover portion 7. The screw fastening hole 22 is provided on the outer peripheral surface at a position corresponding to a cover portion fixing hole 14 of the cover portion 7, which will be described later, in the axial direction of the central axis of the pipe portion 2.
　シャフト部３は、中心軸の軸方向が鉛直方向とされて、パイプ部２に固定されている。シャフト部３における上部には、水平方向に貫通した孔である不図示のパイプ部連結用孔が設けられている。そして、シャフト部３の上部には、パイプ部連結用孔を避けて、進相コンデンサ１２等の電気部品を保持可能な電気部品保持台９が装着されている。 The shaft part 3 is fixed to the pipe part 2 with the central axis being the vertical direction. An unillustrated pipe connecting hole, which is a hole penetrating in the horizontal direction, is provided in the upper portion of the shaft portion 3. An electric component holder 9 capable of holding electric components such as the phase advance capacitor 12 is attached to the upper portion of the shaft portion 3 while avoiding the pipe portion connecting hole.
　シャフト部３とパイプ部２とは、ボルトおよびナットによって固定されている。すなわち、シャフト部３とパイプ部２とは、パイプ部２の下部にシャフト部３の上部が挿入され、パイプ部２に設けられたシャフト部連結用孔とシャフト部３のパイプ部連結用孔とが連通した状態でパイプ部２の連結用孔とシャフト部３の連結用孔とに連結ボルトが差し込まれ、ナットで固定することで固定されている。シャフト部３の中心軸と、パイプ部２の中心軸とは、同軸上に配置されている。 The shaft part 3 and the pipe part 2 are fixed by bolts and nuts. That is, regarding the shaft portion 3 and the pipe portion 2, the upper portion of the shaft portion 3 is inserted into the lower portion of the pipe portion 2, and the shaft portion connecting hole provided in the pipe portion 2 and the pipe portion connecting hole of the shaft portion 3 are Are connected to each other, a connecting bolt is inserted into the connecting hole of the pipe portion 2 and the connecting hole of the shaft portion 3 and fixed by fixing with a nut. The central axis of the shaft portion 3 and the central axis of the pipe portion 2 are arranged coaxially.
　シャフト部３の下端には、回転翼５を駆動する電動機であるモータ部４が固定されている。モータ部４は、パイプ部２の中心軸の軸方向において天井と反対側、すなわちパイプ部２の鉛直方向下方に配置されている。モータ部４は、上面視において円形形状を有する。モータ部４の回転軸とシャフト部３の中心軸とは、同軸上に配置されている。モータ部４の不図示の電源線は、パイプ部２内の中空部を通って、天井の裏に引き込まれ、不図示の電源につながれている。 A motor unit 4, which is an electric motor that drives the rotor blades 5, is fixed to the lower end of the shaft unit 3. The motor unit 4 is arranged on the side opposite to the ceiling in the axial direction of the central axis of the pipe unit 2, that is, below the pipe unit 2 in the vertical direction. The motor unit 4 has a circular shape in a top view. The rotation axis of the motor section 4 and the central axis of the shaft section 3 are arranged coaxially. A power supply line (not shown) of the motor unit 4 passes through a hollow portion in the pipe unit 2 and is drawn to the back of the ceiling and connected to a power supply (not shown).
　回転翼５は、モータ部４の外周において均等な間隔で放射状に配置されている。回転翼５は、モータ部４の上面４ａ、すなわち天井方向側の面に設けられた回転翼固定用孔２０に、ねじ２１によりねじ締結されることで、モータ部４の上面４ａの外周縁部に一端側が固定されている。回転翼固定用孔２０は、回転翼５がねじ２１によりねじ締結される締結部であり、カバー部７により覆われる。モータ部４の上面４ａは、天井扇風機１の設置時に水平方向に平行な面とされる。回転翼固定用孔２０は、モータ部４の上面４ａにおけるモータ部４の半径方向の外周側の領域に設けられている。 The rotary blades 5 are radially arranged at even intervals on the outer circumference of the motor unit 4. The rotor blade 5 is screwed into the rotor blade fixing hole 20 provided on the upper surface 4a of the motor portion 4, that is, the ceiling-side surface, by a screw 21 so that the outer peripheral edge portion of the upper surface 4a of the motor portion 4 is fixed. One end is fixed to. The rotor blade fixing hole 20 is a fastening portion to which the rotor blade 5 is screwed and fastened, and is covered by the cover portion 7. The upper surface 4a of the motor unit 4 is a surface parallel to the horizontal direction when the ceiling fan 1 is installed. The rotor blade fixing hole 20 is provided in a region of the upper surface 4 a of the motor portion 4 on the outer peripheral side in the radial direction of the motor portion 4.
　天井扇風機１は、回転翼５が回転駆動することによって、天井側から床面へ、あるいは床面側から天井への送風を行う。本実施の形態１では、３枚の回転翼５を有する場合について示しているが、回転翼５の枚数は限定されない。天井扇風機１が有する回転翼５の枚数は、例えば４枚であってもよい。 The ceiling fan 1 blows air from the ceiling side to the floor surface or from the floor surface side to the ceiling by rotating the rotating blades 5. In the first embodiment, the case where three rotary blades 5 are provided is shown, but the number of rotary blades 5 is not limited. The number of rotor blades 5 included in the ceiling fan 1 may be four, for example.
　モータ部４とパイプ部２との外周側は、天井扇風機１の意匠を担うカバー部７で覆われている。カバー部７は、上端から下端へ向けて開口面積が大きくなる中空の円錐形状を有する。また、カバー部７の外形は、円錐台形状の半径方向において上端から下端へ向けて外側面が拡がり、モータ部４の外形と連続する、意匠性に富んだ形状を成している。より詳細には、カバー部７は、上端から下端へ向けて開口面積が大きくなる中空の円錐台形状を有する。カバー部７の中心軸と、パイプ部２の中心軸とは、同軸上に配置されている。 The outer peripheral sides of the motor section 4 and the pipe section 2 are covered with a cover section 7 which is a design of the ceiling fan 1. The cover portion 7 has a hollow conical shape whose opening area increases from the upper end toward the lower end. Further, the outer shape of the cover portion 7 has a shape that is rich in design and is continuous with the outer shape of the motor portion 4 with the outer side surface expanding from the upper end to the lower end in the radial direction of the truncated cone shape. More specifically, the cover portion 7 has a hollow truncated cone shape whose opening area increases from the upper end to the lower end. The central axis of the cover portion 7 and the central axis of the pipe portion 2 are arranged coaxially.
　カバー部７は、パイプ部２を挿通するための貫通孔であるパイプ部挿通孔１５ａを上端面部７ａに備える。パイプ部挿通孔１５ａは、カバー部７の上端面部７ａにおいて、上端面部７ａを厚み方向に貫通する長孔形状を有する。パイプ部挿通孔１５ａの位置は、カバー部７の上端面部７ａにおいて、カバー部７の中心軸とパイプ部２の中心軸とが同軸上にある状態でパイプ部２をパイプ部挿通孔１５ａに挿通可能な位置とされる。 The cover part 7 has a pipe part insertion hole 15a, which is a through hole for inserting the pipe part 2, in the upper end surface part 7a. The pipe portion insertion hole 15a has a long hole shape that penetrates the upper end surface portion 7a of the cover portion 7 in the thickness direction. The position of the pipe part insertion hole 15a is such that the pipe part 2 is inserted into the pipe part insertion hole 15a in a state where the central axis of the cover part 7 and the central axis of the pipe part 2 are coaxial with each other in the upper end surface part 7a of the cover part 7. Positioned as possible.
　カバー部７は、カバー部７の外側面である意匠面７ｂの裏側であってカバー部７の上端面部７ａの裏側となる、カバー部７の中空部の上部に、カバー突起部１３が設けられている。カバー突起部１３は、カバー部７の鉛直方向における位置決めを行う。カバー部７は、パイプ部挿通孔１５ａからパイプ部２が挿入され、カバー突起部１３がカバー保持部６に当接することで鉛直方向において位置決めされる。 The cover portion 7 is provided with the cover protrusion 13 on the upper side of the hollow portion of the cover portion 7, which is the rear side of the design surface 7b which is the outer side surface of the cover portion 7 and the rear side of the upper end surface portion 7a of the cover portion 7. ing. The cover protrusion 13 positions the cover 7 in the vertical direction. The pipe portion 2 is inserted into the cover portion 7 from the pipe portion insertion hole 15a, and the cover protrusion portion 13 abuts the cover holding portion 6 to position the cover portion 7 in the vertical direction.
　カバー部７の上部の側面には、孔軸方向がパイプ部２の中心軸の軸方向に対して直交する方向に設けられて、カバー部７をパイプ部２にねじ２３を用いてねじ締結するために用いられるネジ孔であるカバー部固定用孔１４が形成されている。すなわち、カバー部固定用孔１４は、天井扇風機１の設置時に、孔軸方向が水平方向とされる。 A hole axis direction is provided on the upper side surface of the cover portion 7 in a direction orthogonal to the axial direction of the central axis of the pipe portion 2, and the cover portion 7 is screwed to the pipe portion 2 using a screw 23. A cover portion fixing hole 14 that is a screw hole used for this purpose is formed. That is, when the ceiling fan 1 is installed, the cover part fixing hole 14 has a horizontal axis in the hole axis direction.
　カバー部７の上端面部７ａと意匠面７ｂとの外周側の角部には、カバー部７をパイプ部２にねじ締結する際にねじを通すための溝部７ｃが設けられている。溝部７ｃは、円錐台形状の半径方向において上端面部７ａ側からカバー部７の中心軸側に向かって設けられている。溝部７ｃにおけるカバー部７の中心軸側の端部には、上端面部７ａおよび意匠面７ｂに接続された溝内側面７ｄが鉛直方向に沿って設けられている。すなわち、溝部７ｃにおけるカバー部７の中心軸側の端部は閉じられている。 A groove portion 7c is provided at an outer peripheral corner between the upper end surface portion 7a and the design surface 7b of the cover portion 7 for passing a screw when the cover portion 7 is screwed to the pipe portion 2. The groove portion 7c is provided in the radial direction of the truncated cone shape from the upper end surface portion 7a side toward the central axis side of the cover portion 7. At the end of the groove portion 7c on the central axis side of the cover portion 7, a groove inner side surface 7d connected to the upper end surface portion 7a and the design surface 7b is provided along the vertical direction. That is, the end of the groove 7c on the central axis side of the cover 7 is closed.
　そして、カバー部固定用孔１４は、溝内側面７ｄにおいて、溝内側面７ｄを厚み方向において貫通して設けられている。したがって、カバー部固定用孔１４の孔軸方向は、溝内側面７ｄの厚み方向に平行であり、水平方向に平行である。 The cover fixing hole 14 is provided in the groove inner surface 7d so as to penetrate the groove inner surface 7d in the thickness direction. Therefore, the hole axis direction of the cover portion fixing hole 14 is parallel to the thickness direction of the groove inner side surface 7d and parallel to the horizontal direction.
　そして、カバー部７は、カバー部固定用孔１４とパイプ部２の外周面に設けられたねじ締結用孔２２を連通させた状態で、ねじ２３を用いてねじ締結されて固定されている。 The cover portion 7 is fixed by being screwed with the screw 23 in a state where the cover portion fixing hole 14 and the screw fastening hole 22 provided on the outer peripheral surface of the pipe portion 2 are communicated with each other.
　カバー部７は、パイプ部２におけるシャフト部３に固定される側の一部と、シャフト部３と、モータ部４の上面４ａと、回転翼固定用孔２０と、カバー保持部６と、電気部品保持台９と、配線出口１１と、各連結部であるボルトおよびナットと、を覆っている。 The cover portion 7 includes a portion of the pipe portion 2 that is fixed to the shaft portion 3, the shaft portion 3, the upper surface 4a of the motor portion 4, the rotor blade fixing hole 20, the cover holding portion 6, and the electric portion. It covers the component holder 9, the wiring outlet 11, and the bolts and nuts that are the connecting portions.
　ここで、上述したカバー部７の特徴について説明する。ここでは、天井扇風機１の設置時において、以下の状態において回転翼５をモータ部４にねじ締結する作業について説明する。ハンガーカバー部８によって覆われた天井取り付け用ハンガー部１０が天井に設けられたフックに取り付けられている。パイプ部２の中心軸の軸方向における天井側と反対側には、モータ部４に固定されたシャフト部３が固定されている。また、シャフト部３とハンガーカバー部８との間には、パイプ部挿通孔１５ａにパイプ部２が通されたカバー部７が配置されている。カバー部７とパイプ部２とは、ねじ締結されていない。 Here, the features of the cover portion 7 described above will be described. Here, the operation of screwing the rotor blade 5 to the motor unit 4 in the following state when the ceiling fan 1 is installed will be described. The ceiling-mounted hanger portion 10 covered by the hanger cover portion 8 is attached to a hook provided on the ceiling. The shaft portion 3 fixed to the motor portion 4 is fixed to the pipe portion 2 on the side opposite to the ceiling side in the axial direction of the central axis. Further, between the shaft portion 3 and the hanger cover portion 8, the cover portion 7 in which the pipe portion 2 is passed through the pipe portion insertion hole 15a is arranged. The cover portion 7 and the pipe portion 2 are not screwed together.
　上述したように、カバー部７のパイプ部挿通孔１５ａは、カバー部７の上端面部７ａにおいて上端面部７ａを厚み方向に貫通する長孔形状とされている。パイプ部挿通孔１５ａが長孔形状とされることで、図５に示すようにパイプ部挿通孔１５ａにパイプ部２が挿入されるとともにカバー部７がモータ部４の上面４ａから離間した状態において、図６に示すようにカバー部７を傾けることができる。すなわち、カバー部７をモータ部４の上面４ａから浮かせて、カバー部７の中心軸の軸方向をパイプ部２の中心軸の軸方向と異ならせることができる。 As described above, the pipe portion insertion hole 15a of the cover portion 7 has a long hole shape that penetrates the upper end surface portion 7a of the cover portion 7 in the thickness direction. Since the pipe portion insertion hole 15a has a long hole shape, the pipe portion 2 is inserted into the pipe portion insertion hole 15a and the cover portion 7 is separated from the upper surface 4a of the motor portion 4 as shown in FIG. The cover 7 can be tilted as shown in FIG. That is, the cover portion 7 can be floated from the upper surface 4a of the motor portion 4 so that the axial direction of the central axis of the cover portion 7 is different from the axial direction of the central axis of the pipe portion 2.
　これにより、パイプ部挿通孔１５ａにパイプ部２が挿入された状態で、モータ部４の上面４ａに設けられた回転翼固定用孔２０に回転翼５をねじ締結する場合に、モータ部４の上面４ａに設けた回転翼固定用孔２０を水平方向においてカバー部７から露出させることができ、回転翼固定用孔２０を容易に視認することが可能となる。したがって、天井扇風機１は、たとえばパイプ部２の長さが短い場合においても、回転翼固定用孔２０に回転翼５をねじ締結する回転翼５のねじ締結作業を容易に実施することができ、回転翼５のねじ締結の作業性が良く、施工性が良い、という効果を奏する。すなわち、天井扇風機１は、モータ部４の上面４ａへの回転翼５のねじ締結作業が、パイプ部２の長さの影響を受けにくい。 Thus, when the rotor blade 5 is screwed into the rotor blade fixing hole 20 provided on the upper surface 4a of the motor portion 4 with the pipe portion 2 inserted in the pipe portion insertion hole 15a, The rotor blade fixing hole 20 provided on the upper surface 4a can be exposed from the cover portion 7 in the horizontal direction, and the rotor blade fixing hole 20 can be easily visually recognized. Therefore, the ceiling fan 1 can easily perform the screw fastening operation of the rotor blade 5 for screwing the rotor blade 5 into the rotor blade fixing hole 20 even when the length of the pipe portion 2 is short, for example. The workability of screw fastening of the rotary blade 5 is good, and the workability is good. That is, in the ceiling fan 1, the screw fastening work of the rotor blades 5 to the upper surface 4 a of the motor unit 4 is not easily affected by the length of the pipe unit 2.
　また、カバー部７をカバー部７の側面の円周方向、すなわちモータ部４の円周方向において回転させることにより、モータ部４の上面４ａの外周側の領域の全ての位置において、上述した効果が得られる。 Further, by rotating the cover portion 7 in the circumferential direction of the side surface of the cover portion 7, that is, in the circumferential direction of the motor portion 4, the above-described effect is obtained at all positions in the region on the outer peripheral side of the upper surface 4a of the motor portion 4. Is obtained.
　パイプ部挿通孔１５ａの長孔形状における長手方向の長さは、上述した効果が得られる長さであれば特に限定されない。パイプ部挿通孔１５ａの長孔形状における短手方向の長さは、パイプ部２を挿通可能であり、またパイプ部挿通孔１５ａを傾けることが可能な範囲でパイプ部２の直径よりわずかに大きい寸法とされる。 The length in the longitudinal direction of the long hole shape of the pipe insertion hole 15a is not particularly limited as long as the above effects can be obtained. The length in the lateral direction of the long hole shape of the pipe portion insertion hole 15a is slightly larger than the diameter of the pipe portion 2 within a range in which the pipe portion 2 can be inserted and the pipe portion insertion hole 15a can be tilted. It is taken as a dimension.
　また、パイプ部挿通孔１５ａが長孔形状とされることで、パイプ部挿通孔１５ａにパイプ部２が挿入されるとともにカバー部７がモータ部４の上面４ａから離間した状態において、カバー部７を傾ける代わりに、カバー部７の円錐台形状の半径方向にカバー部７をずらすことも可能である。この場合も、上記のようにカバー部７を傾ける場合と同様の効果が得られる。 Further, since the pipe portion insertion hole 15a has a long hole shape, when the pipe portion 2 is inserted into the pipe portion insertion hole 15a and the cover portion 7 is separated from the upper surface 4a of the motor portion 4, the cover portion 7 is formed. Instead of tilting, it is also possible to shift the cover portion 7 in the radial direction of the truncated cone shape of the cover portion 7. In this case as well, the same effect as when the cover portion 7 is tilted as described above can be obtained.
　また、カバー部７は、カバー部固定用孔１４とパイプ部２の外周面に設けられたねじ締結用孔２２を連通させた状態で、パイプ部２およびカバー部７の中心軸の軸方向に対して直交する方向から、ねじ２３を用いてねじ締結されて固定される。これにより、カバー部７のパイプ部挿通孔１５ａが長孔形状とされていても、パイプ部２を上端面部７ａの面方向において適正な位置に固定することが可能である。 Further, the cover portion 7 is arranged in the axial direction of the central axes of the pipe portion 2 and the cover portion 7 in a state where the cover portion fixing hole 14 and the screw fastening hole 22 provided on the outer peripheral surface of the pipe portion 2 are communicated with each other. From the direction orthogonal to the opposite direction, the screws 23 are screwed and fixed using the screws 23. Thereby, even if the pipe part insertion hole 15a of the cover part 7 has a long hole shape, the pipe part 2 can be fixed at an appropriate position in the surface direction of the upper end surface part 7a.
　また、カバー部７の外周面からカバー部７の中心軸側に位置する溝内側面７ｄにカバー部固定用孔１４を設けることにより、カバー部７の外周面にカバー部固定用孔１４を設ける場合に比べてパイプ部２に近い位置でカバー部７とパイプ部２とをねじ締結できる。これにより、カバー部７をパイプ部２に対する適正な位置で、確実に固定することができる。 Further, the cover portion fixing hole 14 is provided on the outer peripheral surface of the cover portion 7 by providing the cover portion fixing hole 14 on the groove inner side surface 7d located on the central axis side of the cover portion 7 from the outer peripheral surface of the cover portion 7. Compared with the case, the cover portion 7 and the pipe portion 2 can be screwed at a position closer to the pipe portion 2. Thereby, the cover part 7 can be reliably fixed at an appropriate position with respect to the pipe part 2.
　また、カバー部７に設けられた溝部７ｃは、ねじ２３をカバー部固定用孔１４に挿通する際にねじ２３をカバー部固定用孔１４に誘導する機能を有するため、天井扇風機１の施工性の向上に寄与する。 Further, since the groove portion 7c provided in the cover portion 7 has a function of guiding the screw 23 to the cover portion fixing hole 14 when the screw 23 is inserted into the cover portion fixing hole 14, the workability of the ceiling fan 1 is improved. Contribute to the improvement of.
　また、天井扇風機１では、カバー部７とモータ部４との外形を、大きな凹凸を有することなくなだらかに連続させることにより意匠性の向上が図られ、また、回転翼５をねじ締結するねじ２１のねじ頭が外観上、視認できないようにねじ２１がカバー部７に覆われることにより意匠性の向上が図られて、意匠性に富んだ外観が実現されている。また、モータ部４における回転翼５をねじ締結する領域をカバー部７から露出させるための制約がないため、意匠に対する自由度が高いカバー部７を実現可能である。 Further, in the ceiling fan 1, the outer appearance of the cover portion 7 and the motor portion 4 is made smooth and continuous without having a large unevenness, whereby the design is improved, and the screw 21 for fastening the rotary blade 5 is screwed. Since the screws 21 are covered with the cover portion 7 so that the screw heads are visually invisible, the design is improved, and the appearance with rich design is realized. Further, since there is no restriction for exposing the region of the motor portion 4 where the rotary blades 5 are screwed together from the cover portion 7, the cover portion 7 having a high degree of freedom in design can be realized.
　また、カバー部７のパイプ部挿通孔１５ａは、パイプ部挿通孔１５ａの長孔形状の長手方向が、図３において矢印Ａで示されるカバー部固定用孔１４の孔軸方向と、平行な方向とされることが好ましい。パイプ部挿通孔１５ａの長孔形状の長手方向とカバー部固定用孔１４の孔軸方向とが同一方向とされることにより、カバー部７のパイプ部２へのねじ止めによる固定のために作用する、ねじ締めトルク、すなわちねじ２３の締め付けトルクによるカバー部７の回転を抑制することができるという効果が得られる。 Further, in the pipe portion insertion hole 15a of the cover portion 7, the longitudinal direction of the long hole shape of the pipe portion insertion hole 15a is parallel to the hole axis direction of the cover portion fixing hole 14 shown by the arrow A in FIG. It is preferable that Since the longitudinal direction of the long hole shape of the pipe part insertion hole 15a and the hole axial direction of the cover part fixing hole 14 are the same, the cover part 7 is fixed to the pipe part 2 by screwing. However, it is possible to suppress the rotation of the cover portion 7 due to the screw tightening torque, that is, the tightening torque of the screw 23.
　また、天井扇風機１の設置後における保守点検時にモータ部４の上面４ａなどを点検する場合においても、上記と同様の効果が得られる。すなわち、天井扇風機１は、モータ部４の上面４ａなどの点検作業がパイプ部２の長さの影響を受けにくく、設置後の保守点検が容易である。 Also, when inspecting the upper surface 4a of the motor unit 4 at the time of maintenance and inspection after the installation of the ceiling fan 1, the same effect as above can be obtained. That is, in the ceiling fan 1, the inspection work of the upper surface 4a of the motor unit 4 is less affected by the length of the pipe unit 2, and the maintenance and inspection after installation is easy.
　たとえばカバー部とモータ部との外形が連続した意匠性に富んだ天井扇風機において、カバー部のパイプ部挿通孔が円形状であった場合には、モータ部の上面に設けられた回転翼固定用孔に回転翼をねじ締結する場合、ドライバーを用いて回転翼をねじ締結できる高さまでカバー部を持ち上げる必要がある。パイプ部の長さは、天井扇風機の仕様によって多様である。 For example, in a well-designed ceiling fan in which the outer shape of the cover part and the motor part are continuous, if the pipe part insertion hole of the cover part is circular, it is for fixing the rotor blades provided on the upper surface of the motor part. When screwing the rotor blade into the hole, it is necessary to lift the cover portion to a height at which the rotor blade can be screwed with a screwdriver. The length of the pipe portion varies depending on the specifications of the ceiling fan.
　このため、モータ部の上面に設けられた回転翼固定用孔への回転翼のねじ締結業を行う際にドライバーを用いて回転翼をねじ締結できる高さまでカバー部を持ち上げることができない、パイプ部が短い天井扇風機も存在する。すなわち、カバー部を持ち上げた際に、ハンガーカバー部の底面とカバー部の上端面部との間のパイプ部が短いために、ドライバーを用いた回転翼のねじ締結作業が可能なカバー部の高さを確保することができない天井扇風機も存在する。このような構成を有する天井扇風機は、場合によっては、出荷時に組み付けられた天井取り付け用ハンガー部をパイプ部から取り外し、ハンガーカバー部およびカバー部をパイプ部から取り外した後に、回転翼固定用孔への回転翼のねじ締結業を行う必要があるため、施工性の極めて悪い天井扇風機といえる。 For this reason, when performing the screw fastening operation of the rotor blade to the rotor blade fixing hole provided on the upper surface of the motor unit, it is not possible to lift the cover portion to a height at which the rotor blade can be screw-fastened using a screwdriver. There is also a short ceiling fan. That is, when the cover part is lifted, the pipe part between the bottom surface of the hanger cover part and the upper end surface part of the cover part is short. There are also ceiling fans that cannot be secured. In some cases, the ceiling fan having such a configuration removes the ceiling-mounting hanger portion assembled at the time of shipment from the pipe portion, removes the hanger cover portion and the cover portion from the pipe portion, and then inserts them into the rotor blade fixing holes. Since it is necessary to perform the screw fastening business of the rotor blade, it can be said that it is a ceiling fan with extremely poor workability.
　一方、本実施の形態１にかかる天井扇風機１は、パイプ部２が短く、ハンガーカバー部８の底面とカバー部７の上端面部７ａとがドライバーを用いた回転翼５のねじ締結作業が不可能な程度に近接した場合であっても、カバー部７を傾ける、あるいはカバー部７をカバー部７の円錐台形状の半径方向にずらすだけで、モータ部４の上面４ａに設けられた回転翼固定用孔２０を露出させて視認することが可能となる。このため、天井扇風機１は、回転翼５の施工性を損なうことなく、意匠性に富んだ天井扇風機１を構成できる。 On the other hand, in the ceiling fan 1 according to the first embodiment, the pipe portion 2 is short, and the bottom surface of the hanger cover portion 8 and the upper end surface portion 7a of the cover portion 7 cannot be screwed to the rotary blade 5 using a screwdriver. Even if they are close to each other, it is possible to fix the rotor blade provided on the upper surface 4a of the motor unit 4 by inclining the cover unit 7 or shifting the cover unit 7 in the radial direction of the truncated cone shape of the cover unit 7. The use hole 20 can be exposed and can be visually recognized. Therefore, the ceiling fan 1 can configure the ceiling fan 1 with a rich design without impairing the workability of the rotary blades 5.
　なお、本実施の形態１では、カバー部７の形状が中空の円錐形状である場合について示しているが、カバー部７の形状は円錐形状に限定されない。カバー部７の形状は、パイプ部２を挿通可能な筒状であればよく、たとえば、中空の四角錐形状、より詳細には、中空の四角錐台形状であってもよい。 In the first embodiment, the case where the shape of the cover 7 is a hollow conical shape is shown, but the shape of the cover 7 is not limited to the conical shape. The shape of the cover portion 7 may be any tubular shape that allows the pipe portion 2 to be inserted therethrough, and may be, for example, a hollow quadrangular pyramid shape, or more specifically, a hollow quadrangular truncated pyramid shape.
　上述したように、本実施の形態１にかかる天井扇風機１は、施工性および施工後の保守点検性が良く、意匠性に富んだ天井扇風機が得られる、という効果を奏する。 As described above, the ceiling fan 1 according to the first embodiment has an effect that the workability and the maintenance/inspection after the work are good, and a ceiling fan with a rich design is obtained.
実施の形態２．
　図７は、本発明の実施の形態２にかかるカバー部７１を示す斜視図である。上述した本実施の形態１にかかる天井扇風機１において、カバー部７の代わりに、本実施の形態２にかかるカバー部７１を使用してもよい。 Embodiment 2.
FIG. 7 is a perspective view showing the cover portion 71 according to the second embodiment of the present invention. In the above-described ceiling fan 1 according to the first embodiment, the cover portion 71 according to the second embodiment may be used instead of the cover portion 7.
　カバー部７１は、カバー部７においてパイプ部挿通孔１５ａの代わりにパイプ部挿通孔１５ｂを有する。パイプ部挿通孔１５ｂは、カバー部７の上端面部７ａにおいて、上端面部７ａを厚み方向に貫通する長孔形状を有する。パイプ部挿通孔１５ｂは、パイプ部挿通孔１５ｂの長孔形状の長手方向が、図７において矢印Ｂで示されるように、矢印Ａで示されるカバー部固定用孔１４の孔軸方向とカバー部７の上端面部７ａにおいて直交する方向とされている。 The cover part 71 has a pipe part insertion hole 15b instead of the pipe part insertion hole 15a in the cover part 7. The pipe part insertion hole 15b has a long hole shape that penetrates the upper end surface part 7a of the cover part 7 in the thickness direction. As for the pipe portion insertion hole 15b, the longitudinal direction of the long hole shape of the pipe portion insertion hole 15b is indicated by an arrow B in FIG. 7, and the hole axial direction of the cover portion fixing hole 14 and the cover portion are indicated by an arrow A. The upper end surface portion 7a of 7 is orthogonal to each other.
　パイプ部挿通孔１５ｂは、長孔形状の長手方向がパイプ部挿通孔１５ａと異なるが、長孔形状とされたことにより、パイプ部２が挿通された状態においてカバー部７を傾けることが可能となる。これにより、パイプ部挿通孔１５ｂを有するカバー部７１を用いる場合も、パイプ部挿通孔１５ａを有するカバー部７を用いる場合と同様にモータ部４の上面４ａに設けられた回転翼固定用孔２０を容易に視認することができ、パイプ部２の長さが短い天井扇風機であっても、回転翼５のねじ締結作業が容易になる。 The pipe portion insertion hole 15b has a long hole shape different from that of the pipe portion insertion hole 15a in the longitudinal direction, but since the pipe portion insertion hole 15b has the long hole shape, the cover portion 7 can be tilted while the pipe portion 2 is inserted. Become. Thereby, also when using the cover part 71 having the pipe part insertion hole 15b, the rotary blade fixing hole 20 provided on the upper surface 4a of the motor part 4 is used as in the case of using the cover part 7 having the pipe part insertion hole 15a. Can be easily visually recognized, and even with a ceiling fan having a short length of the pipe portion 2, the screw fastening work of the rotary blade 5 is facilitated.
　また、パイプ部挿通孔１５ｂの長孔形状の長手方向とカバー部固定用孔１４の孔軸方向とがカバー部７の上端面部７ａにおいて直交する方向とされることにより、カバー部７の固定は、ねじ２３をパイプ部２へ突き当てるだけで実現可能となるため、任意の高さでの固定が可能となる。また、カバー部７を用いる場合には必要であった、カバー部７とのねじ連結に用いられるねじ締結用孔２２をパイプ部２に設ける必要性が無く、カバー部７のカバー部固定用孔１４とパイプ部のねじ締結用孔２２とを連通させる作業も無くなる。このため、カバー部７１を用いることにより、天井扇風機１の部品の加工費を抑制して安価に天井扇風機１を生産することができ、且つカバー部７も容易に固定できる。 Further, since the longitudinal direction of the long hole shape of the pipe portion insertion hole 15b and the hole axis direction of the cover portion fixing hole 14 are orthogonal to each other at the upper end surface portion 7a of the cover portion 7, the cover portion 7 is not fixed. Since it can be realized only by abutting the screw 23 on the pipe portion 2, it can be fixed at an arbitrary height. Further, there is no need to provide the screw fastening hole 22 used for screw connection with the cover portion 7 in the pipe portion 2, which is necessary when the cover portion 7 is used, and the cover portion fixing hole of the cover portion 7 is not necessary. There is also no need to work to connect 14 and the screw fastening hole 22 of the pipe portion. Therefore, by using the cover portion 71, it is possible to suppress the processing cost of the components of the ceiling fan 1 and produce the ceiling fan 1 at low cost, and also the cover portion 7 can be easily fixed.
　なお、パイプ部挿通孔１５ｂでは、カバー部７のパイプ部２へのねじ締結時、カバー部７の固定のために作用するねじ締めトルクによるカバー部７の回転を抑制する効果を得にくい場合には、カバー部７をパイプ部２に固定した後に、カバー部７の傾きを修正すればよい。 In addition, in the pipe portion insertion hole 15b, when it is difficult to obtain the effect of suppressing the rotation of the cover portion 7 due to the screw tightening torque acting for fixing the cover portion 7 when the cover portion 7 is screwed to the pipe portion 2, After fixing the cover portion 7 to the pipe portion 2, the inclination of the cover portion 7 may be corrected.
　上述したように、本実施の形態２にかかるカバー部７１を実施の形態１にかかる天井扇風機１に使用した場合も、実施の形態１の場合と同様に、施工性および施工後の保守点検性が良く、意匠性に富んだ天井扇風機が得られる、という効果を奏する。 As described above, also when the cover portion 71 according to the second embodiment is used in the ceiling fan 1 according to the first embodiment, as in the case of the first embodiment, the workability and the maintenance checkability after the work are performed. It has the effect of obtaining a ceiling fan with good design and rich design.
　また、カバー部７１を実施の形態１にかかる天井扇風機１に使用した場合は、カバー部７を使用する場合に比べて、安価に天井扇風機１を生産することができ、且つカバー部７も容易に固定できる。 Further, when the cover part 71 is used for the ceiling fan 1 according to the first embodiment, the ceiling fan 1 can be produced at a lower cost than when the cover part 7 is used, and the cover part 7 is also easy. Can be fixed to.
　したがって、上述した各実施の形態にかかる天井扇風機１によれば、カバー部７に設けられたパイプ部挿通孔１５ａ，１５ｂが長孔形状とされている。これにより、天井扇風機１の意匠を担うカバー部７の外形がモータ部４の外形と連続した構成されて回転翼固定用孔２０がカバー部７に覆われ、パイプ部２の長さが短い場合でも、カバー部７を傾けることで、モータ部４の上部に設けられた回転翼固定用孔２０が視認できる。このため、回転翼５のねじ締結作業性およびモータ部４の上面４ａ等の保守点検性が高く、意匠性にも富んだ天井扇風機１が得られる、という効果を奏する。 Therefore, according to the ceiling fan 1 according to each of the above-described embodiments, the pipe part insertion holes 15a and 15b provided in the cover part 7 have a long hole shape. As a result, when the outer shape of the cover portion 7 that is responsible for the design of the ceiling fan 1 is continuous with the outer shape of the motor portion 4 and the rotor blade fixing holes 20 are covered with the cover portion 7, and the length of the pipe portion 2 is short. However, by tilting the cover portion 7, the rotary blade fixing hole 20 provided on the upper portion of the motor portion 4 can be visually recognized. Therefore, it is possible to obtain the ceiling fan 1 which has high workability of screwing the rotor blades 5 and maintenance and inspection of the upper surface 4a of the motor portion 4 and the like, and which is rich in design.
　以上の実施の形態に示した構成は、本発明の内容の一例を示すものであり、別の公知の技術と組み合わせることも可能であるし、本発明の要旨を逸脱しない範囲で、構成の一部を省略、変更することも可能である。 The configurations described in the above embodiments are examples of the content of the present invention, and can be combined with another known technique, and the configurations of the configurations are not departing from the scope of the present invention. It is also possible to omit or change parts.
　１　天井扇風機、２　パイプ部、３　シャフト部、４　モータ部、４ａ　上面、５　回転翼、６　カバー保持部、７，７１　カバー部、７ａ　上端面部、７ｂ　意匠面、７ｃ　溝部、７ｄ　溝内側面、８　ハンガーカバー部、９　電気部品保持台、１０　天井取り付け用ハンガー部、１０ａ　フック取り付け部、１１　配線出口、１２　進相コンデンサ、１３　カバー突起部、１４　カバー部固定用孔、１５ａ，１５ｂ　パイプ部挿通孔、２０　回転翼固定用孔、２２　ねじ締結用孔。 1 ceiling fan, 2 pipe section, 3 shaft section, 4 motor section, 4a upper surface, 5 rotor blade, 6 cover holding section, 7,71 cover section, 7a upper end surface section, 7b design surface, 7c groove section, 7d groove inner side surface, 8 hanger cover part, 9 electrical parts holder, 10 ceiling hanger part, 10a hook mounting part, 11 wiring outlet, 12 phase advance capacitor, 13 cover protruding part, 14 cover part fixing hole, 15a, 15b pipe part insertion Holes, 20 rotor blade fixing holes, 22 screw fastening holes.

Claims (3)

  1. 　軸方向を鉛直方向とされて天井に取り付け可能な筒状のパイプ部と、
    　前記パイプ部に対して、前記パイプ部の軸方向における天井と反対側に固定されるシャフト部と、
    　前記シャフト部に対して、前記パイプ部の軸方向における前記パイプ部と反対側に固定されるモータ部と、
    　前記モータ部における前記パイプ部の軸方向における前記天井側の面の外周縁部に設けられた締結部に一端部側がねじ締結されて回転駆動される回転翼と、
    　前記パイプ部の軸方向における前記モータ部よりも天井側において前記パイプ部が挿通されて前記パイプ部に固定されるカバー部と、
    　を備え、
    　前記カバー部は、前記パイプ部が挿通する長孔形状のパイプ部挿通孔が上端面部に設けられ、前記パイプ部の軸方向に対して直交する方向からねじにより前記パイプ部に固定され、前記締結部を覆うこと、
    　を特徴とする天井扇風機。     A tubular pipe part that can be attached to the ceiling with the axial direction being the vertical direction,
    With respect to the pipe portion, a shaft portion fixed to the side opposite to the ceiling in the axial direction of the pipe portion,
    With respect to the shaft portion, a motor portion fixed on the side opposite to the pipe portion in the axial direction of the pipe portion,
    A rotary blade, one end of which is screw-fastened to be rotationally driven by a fastening portion provided on an outer peripheral edge portion of a surface of the motor portion on the ceiling side in the axial direction of the pipe portion,
    A cover part that is fixed to the pipe part by inserting the pipe part on the ceiling side of the motor part in the axial direction of the pipe part;
    Equipped with
    The cover portion has a long hole-shaped pipe portion insertion hole through which the pipe portion is inserted, which is fixed to the pipe portion with a screw from a direction orthogonal to an axial direction of the pipe portion, and the fastening Covering parts,
    Ceiling fan featuring.
  2. 　前記カバー部は、孔軸方向が前記パイプ部の軸方向に対して直交する方向とされて前記ねじが固定されるカバー部固定用孔が側面に形成され、
    　前記パイプ部挿通孔の長手方向が、前記孔軸方向と平行な方向であること、
    　を特徴とする請求項１に記載の天井扇風機。     In the cover part, a hole for fixing the cover is formed on a side surface, in which a hole axial direction is a direction orthogonal to an axial direction of the pipe part and the screw is fixed.
    The longitudinal direction of the pipe part insertion hole is a direction parallel to the hole axis direction,
    The ceiling fan according to claim 1, wherein:
  3. 　前記カバー部は、孔軸方向が前記パイプ部の軸方向に対して直交する方向とされて前記ねじが固定されるカバー部固定用孔が側面に形成され、
    　前記パイプ部挿通孔の長手方向が、前記孔軸方向と直交する方向であること、
    　を特徴とする請求項１に記載の天井扇風機。     In the cover part, a hole for fixing the cover is formed on a side surface, in which a hole axial direction is a direction orthogonal to an axial direction of the pipe part and the screw is fixed.
    The longitudinal direction of the pipe part insertion hole is a direction orthogonal to the hole axis direction,
    The ceiling fan according to claim 1, wherein:
PCT/JP2018/043839 2018-11-28 2018-11-28 Ceiling fan WO2020110240A1 (en)

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PCT/JP2018/043839 WO2020110240A1 (en) 2018-11-28 2018-11-28 Ceiling fan
MYPI2021002717A MY192566A (en) 2018-11-28 2018-11-28 Ceiling fan
JP2020557468A JP6983337B2 (en) 2018-11-28 2018-11-28 Ceiling fan

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5622494U (en) * 1979-07-27 1981-02-27
WO2012093445A1 (en) * 2011-01-07 2012-07-12 パナソニック株式会社 Ceiling fan
JP2018091257A (en) * 2016-12-06 2018-06-14 パナソニックＩｐマネジメント株式会社 Ceiling fan

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5622494U (en) * 1979-07-27 1981-02-27
WO2012093445A1 (en) * 2011-01-07 2012-07-12 パナソニック株式会社 Ceiling fan
JP2018091257A (en) * 2016-12-06 2018-06-14 パナソニックＩｐマネジメント株式会社 Ceiling fan

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