JP2009281152A - High place mounting electric fan - Google Patents

Abstract

An object of the present invention is to provide a fan for mounting at a high place, which can easily adjust the height of a knob of a drawstring.
SOLUTION: A stand 1 attached to a high place of a building, a fan main body 21 provided with a blower fan 8 and a motor 13 supported by the stand 1, and a contact point of an electric circuit of the motor 13 installed on the stand 1 are switched. A switch for operating, stopping and switching the air volume of the motor 13, a drawstring for operating the switch, and a drawstring length adjusting device 4 connected to an intermediate portion of the drawstring.
[Selection] Figure 1

Description

  The present invention relates to a fan for mounting at a high place, which is mounted on a ceiling or a wall.

  Generally, a fan for mounting at a high place is controlled individually or simultaneously by a separate controller attached to a wall or the like. Separately from this, by installing a pull switch that switches the air volume in the fan body and pulling the pull string connected to the operation lever, the switch contacts are switched one after another, and the air volume is switched and the power is turned on and off. There is a fan for mounting at high places. In recent years, such an electric fan that can be frequently turned on and off individually has been reviewed from the viewpoint of energy saving.

  Conventionally, as a fan for mounting at high places in this form, a fan main body provided with a motor in which an open / close shutter is provided on the outdoor side in a frame shape that opens the indoor side and the outdoor side, and a blade is fixed inside, and the electric fan main body A switch part that opens and closes the electric circuit of the motor, and an operation part that operates the switch part, and constitutes an operation / stop unit comprising the switch part and the operation part. There is a ventilation fan in which the unit can be operated on either the left or right side of the indoor side of the ventilation fan body without changing the mounting position of the switch (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-173612

  As for the fan for mounting at a high place, the knob height of the drawstring changes depending on the ceiling height of the building to be installed. In order to improve usability, it is necessary to adjust the height of the knob by adjusting the length of the pull string. However, in conventional fans for mounting at high places, the pull string is directly connected to the selector switch. The only way to adjust the height is to replace the string with an appropriate length, or adjust the length by making a knot in the middle of the string. For this reason, there are problems such as cost, labor and deterioration of appearance. Further, in the off season such as in winter, there is a problem that the string must be bundled near the ceiling so that the drawstring does not get in the way.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the fan for high place attachment which can adjust the knob height of a drawstring easily over all seasons.

  In order to solve the above-described problems and achieve the object, the present invention provides a stand attached to a high place of a building, a fan body supported by the stand and provided with a blower fan and a motor, and the motor installed in the stand. A switch for switching the contact of the electric circuit to operate, stop and switch the air flow, a pull string for operating the switch, and a pull string adjusting device connected to an intermediate portion of the pull string It is characterized by providing.

  According to the present invention, it is possible to easily adjust the knob height of the pull string without exchanging, cutting, or tying the pull string, and the knob regardless of the ceiling height. The height can be adjusted to suit the user's height. In the off-season, the drawstring can be wound up to the vicinity of the ceiling, and the drawstring does not get in the way and the appearance is good.

  Embodiments of a fan for mounting at high places according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment FIG. 1 is an overall perspective view showing an embodiment of a high place mounting fan according to the present invention, and FIG. 2 is a top view showing an arm portion of the high place mounting fan according to the embodiment. 3 is an exploded top perspective view showing the pull string adjusting device of the embodiment, FIG. 4 is a bottom exploded perspective view showing the pull string length adjusting device of the embodiment, and FIG. FIG. 6 is a longitudinal sectional view showing the drawstring length adjusting device of the embodiment, and FIG. 6 is a sectional view taken along line BB in FIG.

  As shown in FIG. 1 and FIG. 2, the high place mounting fan 20 of the embodiment includes a stand 1 attached to a ceiling as a high place of a building, a blower fan 8, a motor 13, and a fan guard supported by the stand 1. 7, a fan main body 21 provided on the stand 1, a pull switch 3 for switching the electric circuit of the motor 13 installed on the stand 1 to operate, stop, and air volume switching, and pull strings 5 a and 5 b for operating the pull switch 3. And a drawstring length adjusting device 4 connected between the drawstring 5a and the drawstring 5b.

  The base 1a of the stand 1 that supports the electric fan main body 21 so as to be turnable downward by two columns is used to hang the pull string 5b to the side of the blower fan 8 so as not to interfere with the blower fan 8 or the fan guard 7. The arm 2 is attached such that its tip protrudes in the horizontal direction.

  The pull switch 3 is installed in the vicinity of the base end portion of the arm 2 of the base portion 1 a of the stand 1. The pull switch 3 includes an operation lever 3a, and a pull string 5a is connected to the operation lever 3a. When the drawstring 5a is pulled, the contact point of the electric circuit of the motor 13 is switched, and the motor 13 is operated, stopped, and the air volume is switched.

  The pulling cord 3a and the pulling cord length adjusting device 4 arranged on the arm 2 are connected by a pulling cord 5a, and the pulling cord length adjusting device 4 and the knob 6 are connected by a pulling cord 5b. Has been. The drawstring 5b hangs downward from the circular hole 2b at the tip of the arm 2, and a knob 6 is connected to the tip.

  As shown in FIG. 3 to FIG. 6, the drawstring length adjusting device 4 includes a slide base 9 that is generally formed in a cylindrical shape, and a knob 10 that is rotatably fitted in the slide base 9. It is configured.

  The knob 10 includes a handle 10e provided on the head, a drawstring winding portion 10c formed as an annular groove below the handle 10e, and a drawstring connection hole 10d provided on the drawstring winding portion 10c. And a rectangular fixed guide 10b provided on the lower side of the drawstring winding portion 10c, and a shaft 10a extending downward from the fixed guide 10b.

  The slide base 9 has a circular hole 9a provided in the center of the lower portion and into which the shaft 10a of the knob 10 is fitted, a pulling string through-hole 9b provided in the side surface of the cylindrical wall, and a long hole provided in an intermediate portion of the arm 2. 2a, and a pulling cord connecting portion 9d provided at a portion facing the pulling cord through hole 9b on the side surface of the cylindrical wall.

  The knob 10 is held by the slide base 9 by fitting the shaft 10 a into the circular hole 9 a of the slide base 9 and preventing the knob 10 from coming off by the C ring 11. As shown in FIG. 6, a rectangular fixed guide 10 b is sandwiched between two leaf springs 12 fitted in the slide base 9, and each time the knob 10 is rotated stepwise by 90 °, the leaf spring 12. Is designed to prevent rotation. If the fixed guide 10b is a polygon having a larger number of angles than a quadrangle, the knob 10 can be prevented from rotating stepwise for each rotation angle smaller than 90 °.

  The base end of the pull string 5 b is fixed to the pull string connecting hole 10 d of the knob 10 through the pull string through hole 9 b of the slide base 9. If the handle 10e is turned by hand and the knob 10 is rotated, the drawstring 5b can be wound around the drawstring winding part 10c. The drawstring winding part 10 c can wind up the drawstring 5 b until the knob 6 hits the tip of the arm 2.

  The slide groove 9c of the slide base 9 is fitted into the long hole 2a of the arm 2 so that the slide base 9 slides on the arm 2 when the pull string 5b is pulled to operate the pull switch 3. ing. The length of the long hole 2 a is longer than the stroke of the operation lever 3 a of the pull switch 3.

  When the pull string 5a connects the operating lever 3a and the pull string connecting portion 9d of the slide base 9 and pulls the pull string 5b, the pull string length adjusting device 4 is guided by the long hole 2a to be arm 2. The control lever 3a can be operated by sliding on the top.

  The braking force of the knob 10 by the two leaf springs 12 is set to be larger than the user's pulling operation force as well as the operation force of the pull switch 3, and the wound drawstring 5b is pulled by the user. It will not be solved by the operation.

  As described above, the high-place installation fan according to the present invention is useful for general household use, ceiling installation, wall installation, and ventilation fan.

1 is an overall perspective view showing an embodiment of a fan for mounting at a high place according to the present invention. It is a top view which shows the arm part of the fan for height installation of embodiment. It is an upper disassembled perspective view which shows the drawstring length adjustment apparatus of the high place mounting fan of embodiment. It is a downward exploded perspective view which shows the drawstring length adjustment apparatus of embodiment. It is a longitudinal cross-sectional view which shows the drawstring length adjustment apparatus of embodiment. It is sectional drawing which follows the BB line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stand 1a Base part 2 Arm 2a Long hole 2b Circular hole 3 Pull switch 3a Operation lever 4 Pull string length adjusting device 5a, 5b Pull string 6 Knob 7 Fan guard 8 Blower fan 9 Slide base 9a Circular hole 9b Pull string through hole 9c Slide groove 9d Pulling string connecting part 10 Knob 10a Shaft 10b Fixed guide 10c Pulling string winding part 10d Pulling string connecting hole 10e Handle 11 C ring 12 Leaf spring 13 Motor 20 Altitude mounting fan 21 Fan main body

Claims (4)

A stand that can be mounted at the height of a building,
An electric fan body supported by the stand and provided with a blower fan and a motor;
A switch that is installed in the stand to switch the contact point of the electric circuit of the motor to switch the operation, stop, and air volume of the motor;
A drawstring for operating the switch;
A drawstring length adjusting device connected to an intermediate portion of the drawstring;
A fan for mounting at a high place, characterized by comprising:   The fan for high place installation according to claim 1, further comprising an arm that is installed on the stand and hangs to the side of the blower fan so as not to interfere with the blower fan.   The high place mounting fan according to claim 2, wherein the drawstring length adjusting device is disposed on the arm.   The high place mounting fan according to any one of claims 1 to 3, wherein the drawstring length adjusting device adjusts the length of the drawstring in a stepwise manner.

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