JP2001078422A - Linear motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate cleaning work of a filter by coupling the other end a fitting plate to a linear motor body via a screw member inserted into a screw inserting portion, and then fitting a plurality of blowers having the filters to the single fitting plate. SOLUTION: This linear motor is mounted to the external circumferential surface of a body 9 to freely turn via a bolt 16 with the right side of the lower end of single fitting plate 10 used as a fixing axis. When the filter 12 is placed under the cleaning condition, a plug code 13a is removed from a blower 11, and a clamp 14 is also removed from the fitting plate 10 to remove a lead wire 13. Next, when a screw 15 is loosened to release the fitting plate 10 and it is then turned clockwise about the bolt 16, the filter 12 is isolated from the support 13a and is exposed and therefore the cleaning is conducted. When the fitting plate 10 is turned counterclockwise, a stopper portion 10b is placed in contact with a linear motor body 9 for the positioning and the screw 15 enters simultaneously the upper and lower cutout portion 10a. As a result, the filter can be cleaned easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor, and more particularly, to a filter for a cooling blower which can be easily cleaned.

[0002]

2. Description of the Related Art The structure of an elevator using a linear motor is shown in FIG. In the drawing, reference numeral 1 denotes a car which can be moved up and down along a guide 2, 3 denotes a counterweight which can be moved up and down along a guide 4, 5 and 6 are pulleys, 7 is a rope, and 8 is a column.
A linear motor body 9 surrounding the column 8 is attached to the counterweight 3.

[0003] The linear motor body 9 has a counterweight 3.
In the narrow space between the supports 3a and 3b. FIG. 3 is an enlarged plan view of the vicinity of the linear motor main body 9. As shown in the drawing, a blower 11 is attached to a side surface of the linear motor main body 9 via an attachment plate 10, and a filter 12 is attached to the blower 11.

FIG. 4 shows a state in which the blower 11 and the filter 12 are attached to the linear motor body 9. As shown in the figure, each of the two mounting plates 10 has a darma hole 10a formed at each of the four corners.
The linear motor body 9 is attached by inserting a screw 15 into the linear motor body 9. Then, two sets of blowers 11 and filters 12 are mounted on the mounting plate 10, respectively.

On the other hand, a lead wire 13 led out of the inside of the linear motor body 9 is connected to the linear motor body 9 via a clamp 14, and four plug cords 13a branched from the lead wire 13 are detachably attached to the blower 11. It is connected to the.

When the linear motor body 9 is operated, the blower 11
The outside air is sent in from the cooling unit. However, if the linear motor body 9 is operated for a long period of time, dust adheres to the filter 12 to cause clogging, and the cooling capacity of the blower 11 decreases. Therefore, the filter 12 is cleaned by performing maintenance periodically.

The cleaning of the filter 12 is performed in the following procedure. First, the plug cord 13a is removed from the blower 11, and the eight screws 15 are loosened. Next, after the mounting plate 10 is slightly shifted so that the screw 15 relatively moves to the larger one of the inner diameters of the dharma holes 10a, the mounting plate 10 is moved in the direction of arrow A to The Dharma Hole 10
a, and the mounting plate 10 is moved in the direction of arrow B and taken out.

The filter 12 taken out together with the mounting plate 10
Is cleaned, and the filter 12 and the blower 11 are mounted on the linear motor body 9 together with the mounting plate 10 in the reverse procedure.

[0009]

However, in addition to loosening or tightening as many as eight screws, the mounting plate is so arranged that the screws can move relatively between the large and small holes in the daruma hole. The work of shifting 10 is required twice, and a large amount of work is required, which consumes a great deal of time.

[0010] Therefore, an object of the present invention is to provide a linear motor that solves such a problem.

[0011]

According to a first aspect of the present invention, there is provided a linear motor comprising: a plurality of blowers provided on an outer surface of a linear motor body via a mounting plate; In a linear motor in which a filter is provided and the support of the counterweight is positioned outside the filter via a gap, one end of a single mounting plate is rotatably connected to the outer surface of the linear motor body via a fixed shaft. And
A screw insertion portion is formed at the other end, and the other end of the mounting plate is coupled to the linear motor body via a screw member inserted into the screw insertion portion, and a plurality of blowers having a filter are mounted on a single mounting plate. It is characterized by having.

According to a second aspect of the present invention, in the linear motor according to the first aspect, a notch or a hole is formed as the first screw insertion portion along a circle centered on the fixed shaft.

According to a third aspect of the invention, there is provided a linear motor, wherein one side of the mounting plate in the first and second aspects is formed so as to protrude toward the main body of the linear motor to form a stopper portion.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a linear motor according to the present invention will be described below. In this embodiment, since a part of the conventional linear motor is improved, the same parts as those of the conventional linear motor are denoted by the same reference numerals, and description thereof will be omitted. Only different parts will be described.

As shown in FIG. 1, the right side of the lower end of the single mounting plate 10 is rotatably mounted on the outer peripheral surface of the linear motor body 9 via a bolt 16 as a fixed shaft.
Notches 10a for inserting the screws 15 are formed so that the mounting plate 10 does not need to be removed as in the related art. The notches 10a are formed on the upper and lower portions of the mounting plate 10, respectively, and each has a shape cut along a circumference around the bolt 16. The screws 15 inserted into the respective cutouts 10 a are screwed into the outer peripheral surface of the linear motor main body 9. When the mounting plate 10 is rotated about the bolt 16, the mounting plate 10 is positioned so that the positioning of the mounting plate 10 is performed when the screw hole into which the screw 15 is screwed and the notch 10 a coincide. The stopper portion 10b is formed by bending and projecting by about 90 ° toward the main body 9.

The single mounting plate 10 thus constructed
, Four blowers 11 each having a filter 12 are attached. A lead wire 13 led out from the inside of the linear motor body 9 is attached to the attachment plate 10 via a pair of clamps 14. The four plug cords 13a branched from the lead wires 13 are detachably connected to the blower 11, respectively.

Next, the operation of such a linear motor will be described. When cleaning the filter 12, the following procedure is performed.

First, each plug cord 13a is detached from the blower 11, and the pair of clamps 14 is detached from the mounting plate 10, whereby the lead wire 13 is detached from the mounting plate 10. Next, the mounting plate 10 is opened by loosening the pair of screws 15, and the mounting plate 10 is rotated clockwise as indicated by the arrow C around the bolt 16.

Since the filter 12 is separated from the support 3a by rotating, the filter 12 is cleaned. Thereafter, the mounting plate 10 is rotated counterclockwise. Then, the stopper portion 10b comes into contact with the linear motor body 9 and is positioned, and at the same time, the upper and lower cutouts 1
The screws 15 are inserted into the respective portions 0a. Thereafter, it is returned to the original position in the reverse procedure.

If the lead wire 13 is attached to the linear motor 9 via the clamp 14, the filter 1 can be removed by removing only the plug cord 13a without removing the lead wire 13.
2 cleaning can be performed.

In this embodiment, the notch is formed as the screw insertion portion, but a hole may be formed and a screw may be attached and detached. Further, the cutouts are formed on the upper and lower sides of the mounting plate and screwed, but the upper part may be screwed only. Furthermore, although the mounting plate is configured to rotate clockwise, it may be configured to rotate counterclockwise. Furthermore, although four blowers and the like are mounted on a single mounting plate, three or less or five or more may be provided.

[0022]

As can be seen from the above description, claim 1
According to the linear motors of (1) to (3), one end of the single mounting plate is rotatably provided via the fixed shaft, and the other end is connected via the screw member inserted into the screw insertion portion. It is only necessary to turn the mounting plate by turning it on and off, and it is not necessary to loosen or screw in a number of screws as in the conventional case. For this reason, the work of pulling out and housing the filter and the like together with the single mounting plate from between the linear motor main body and the support is easy. Therefore, the operation for cleaning the filter is easy and the operation time is short. Further, since only one mounting plate is required, cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a linear motor according to the present invention.

FIG. 2 is a configuration diagram of an elevator.

FIG. 3 is a plan view showing the vicinity of a linear motor in the elevator of FIG. 2;

FIG. 4 is a perspective view of a linear motor used for an elevator.

[Explanation of symbols]

 3a, 36: Support 9: Linear motor body 10: Mounting plate 10a: Notch 10b: Stopper 11: Blower 12: Filter 15: Screw 16: Bolt

Continued on the front page (72) Inventor Masayuki Kawaguchi 2-1-17 Osaki, Shinagawa-ku, Tokyo Inside the company Meidensha (72) Inventor Keiichi Korogi 2-1-1-17 Osaki, Shinagawa-ku, Tokyo Inside the company Meidensha F term (reference) 3F301 BA16 CA11 5H641 JB04 JB08 JB09 JB10

Claims (3)

[Claims] 1. A linear motor in which a plurality of blowers are provided on an outer surface of a linear motor main body via a mounting plate, a filter is provided on each of the blowers, and a support for a counterweight is located outside the filters via a gap. In the above, one end of the single mounting plate is rotatably connected to the outer surface of the linear motor main body via a fixed shaft, the other end is formed with a screw insertion portion, and a screw member inserted into the screw insertion portion is provided. A linear motor characterized in that the other end of the mounting plate is connected to the main body of the linear motor via a filter, and a plurality of blowers having filters are mounted on a single mounting plate. 2. The linear motor according to claim 1, wherein a notch or a hole is formed as the screw insertion portion along a circle centered on the fixed shaft. 3. The linear motor according to claim 1, wherein a stopper portion is formed by projecting one side of the mounting plate toward the linear motor main body.