JP3512121B2 - Automatic door - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supports a motor for opening and closing a door and a reduction gear connected to the motor with respect to a frame by interposing a vibration-proof elastic body such as a vibration-proof rubber. The present invention relates to an automatic door that is installed to cut off the transmission of vibrations generated from these motors and reducers to the frame.

[0002]

2. Description of the Related Art Conventionally, this type of automatic door eliminates the discomfort given to the occupants by the vibration generated from the motor and the speed reducer being transmitted to the wall surface of the building through the frame while the door is opened and closed. Therefore, by supporting the motor and the speed reducer with a vibration-proof elastic body such as a vibration-proof rubber interposed therebetween, the vibration generated from the motor and the speed reducer is attached to the frame for transmission interruption.

[0003]

However, in such a conventional automatic opening / closing door, a vibration-proof elastic body such as a vibration-proof rubber also has a function of blocking heat, so that it is generated from the motor. Heat cannot be transferred to the frame and dissipated, and there is usually only cooling that radiates heat to the air by natural convection, especially when the door is frequently opened and closed for a long time, heat is radiated from the motor to the air. However, there is a problem that the motor cannot be cooled in time, and the heat is gradually accumulated in the motor, which causes damage to the motor.

In view of such conventional circumstances, it is an object of the present invention to improve the heat radiation performance from the motor while maintaining the vibration isolation function.

[0005]

In order to solve the above problems, the technical means of the present invention is to connect a flexible heat transfer means to a motor, and contact the tip of this heat transfer means only with the frame. And its flexible heat transfer means
Both the metal wire with the flat knitting of the tip that contacts the frame
It is characterized by being composed of a flat knitted belt .

[0006]

Further, the characterized in that connecting the heat transfer means each flexible on both end surfaces facing the motor, into contact with an intermediate portion bent tip of heat transfer means only in the frame
To do.

[0008]

According to the above technical means of the present invention, the vibration from the motor is transferred to the flexible heat transfer means by bringing the tip of the flexible heat transfer means connected to the motor into contact with only the frame. It is not absorbed and transmitted to the frame, but only the heat of the motor is conducted to the frame through the flexible heat transfer means.

Also, by connecting flexible heat transfer means to the opposite end surfaces of the motor respectively, and bending the middle portions of these heat transfer means so that the tips contact only the frame,
The area where the heat of the motor is conducted to the frame is increased.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIG. 1 to FIG. 4, a mounting plate 1a made of metal such as aluminum, on which a door A is horizontally movably suspended from a frame 1, is continuously provided. Vibrations generated from the motor 2 and the speed reducer 3 are supported by supporting the motor 2 for opening and closing the door and the speed reducer 3 connected to the motor 2 with the anti-vibration elastic bodies 4 and 4 interposed therebetween. Mounting plate 1a
Also, the door A is attached to the frame 1 so as to cut off the transmission, and the belt B is interlocked with the rotation of the motor 2.
To reciprocate horizontally to open and close.

The motor 2 has a flexible heat transfer means 5
And the tip portion 5a of the heat transfer means 5 is placed in contact with only the mounting plate 1a of the frame 1. In the case of this embodiment, as shown in FIG. 1, the base end portion 5c of the heat transfer means 5 is provided on the end surface 2b opposite to the end surface 2a on which the output shaft 2'connected to the speed reducer 3 of the motor 2 is arranged. Abut on the motor support angle 1b, and insert the mounting screw 1c.
And the intermediate portion 5b of the heat transfer means 5 together with the tip portion 5
a is bent at a substantially right angle in the direction of entering the gap between the outer peripheral surface 2c of the motor 2 and the mounting plate 1a, and if necessary, the tip portion 5a of the heat transfer means 5 is attached to the mounting plate 1 of the frame 1.
In order to reliably press against a, a cushion material 6 such as rubber is interposed between the outer peripheral surface 2c of the motor 2. Although not shown, a base end portion 5c of the heat transfer means 5 is provided between the speed reducer 3 and the end surface 2a on which the output shaft 2'of the motor 2 is arranged.
May be sandwiched, and in this case, the intermediate portion 5b of the heat transfer means 5 is bent at a substantially right angle in the direction in which the tip portion 5a thereof enters the gap between the outer peripheral surface 2c of the motor 2 and the mounting plate 1a. Alternatively, it is bent at a substantially right angle in the opposite direction so as to enter the gap between the reduction gear 3 and the mounting plate 1a.

The heat transfer means 5 is a flat knitted fabric in which at least the tip portion 5a which comes into contact with the mounting plate 1a of the frame 1 is flat-knitted with a metal wire such as copper, aluminum or brass having excellent heat conductivity. Composed of obi. In the case of this embodiment, as shown in FIG. 5 and FIG.
The intermediate portion 5b is formed of a flat knitted band, and the base end portion 5c is formed of a metal plate having excellent thermal conductivity, such as copper, aluminum, or brass, and most of the metal plate is the motor 2
The end faces 2a and 2b are formed in substantially the same shape, and a flat knitting band is sandwiched between the ends to be integrated. The flat knitted band may be formed by flat knitting a metal wire having excellent thermal conductivity into a flat plate shape as shown in FIG. 5, or using a flat knitted bag shape as shown in FIG. Good, in the case of flat knitting in a bag shape, the tip portion 5a of the heat transfer means 5 described above.
The cushion member 6a such as rubber may be inserted into the bag-shaped portion without disposing the cushion member 6 such as rubber for surely pressing the mounting plate 1a of the frame 1. Further, as shown in FIG. 7, the entire flexible heat transfer means 5 may be configured by a flat knitting belt, and the heat transfer means 5 entirely configured by the flat knitting belt may be formed by a motor as shown in FIG. 2 end face 2b
When sandwiching and mounting between the motor support angle 1b and the motor support angle 1b, if an engaging groove slightly smaller than the thickness of the flat knitting band is formed in the end surface 2b of the motor 2 or the contact surface of the motor support angle 1b, this engagement is performed. If the flat knitting band is sandwiched in the mating groove while being abutted and fitted and the mounting screw 1c is tightened together, there is an effect that it is easy to work. Further, when the engaging groove is provided in the abutting surface of the motor supporting angle 1b, Since there is no need to machine the end surface 2b of the motor 2, the number of parts is reduced, which is economical.

Therefore, the automatic opening / closing door of this embodiment is
When the motor 2 and the speed reducer 3 are actuated, vibrations from both of them are transmitted to the base end portion 5c made of the metal plate of the flexible heat transfer means 5, but the intermediate portion 5b made of the flat knitted band.
And the mounting plate 1a of the frame 1 absorbed by the tip 5a
The heat generated from the motor 2 is transmitted to the frame through the base end portion 5c made of the metal plate of the flexible heat transfer means 5, the intermediate portion 5b made of the flat knitted belt and the tip portion 5a. 1
Is transmitted to the mounting plate 1a.

Further, FIG. 7 shows another embodiment of the present invention, in which both ends 2a, 2b of the motor 2 facing each other are provided with flexible heat transfer means 5, 5 respectively. And the intermediate portions 5b, 5b of the heat transfer means 5, 5 are moved in opposite directions so that the respective tip portions 5a, 5a enter the gap between the outer peripheral surface 2c of the motor 2 and the mounting plate 1a as shown in the drawing. It is bent at a substantially right angle, and the tip portions 5a, 5a are arranged in contact with only the mounting plate 1a of the frame 1. Although not shown, the heat transfer means connected to the end surface 2b is such that the tip end 5a of the intermediate portion 5b of the heat transfer means 5 connected to the end surface 2a enters the gap between the speed reducer 3 and the mounting plate 1a. 5 may be bent at substantially right angles in the same direction as the intermediate part 5b of 5 to make the tip parts 5a, 5a contact only the mounting plate 1a of the frame 1. In this case, the tip parts 5a, 5a are shown in FIG. It can be made longer than the tip parts 5a, 5a shown,
There is an effect that the contact area of the frame 1 with the mounting plate 1a can be increased.

Therefore, in the automatic door according to this embodiment, when the motor 2 and the speed reducer 3 are operated, vibrations from the motor 2 and the speed reducer 3 are flexible like the heat transfer means 5 and 5 as in the previous embodiment. Is transmitted to the base end portions 5c, 5c of the
The heat generated by the motor 2 that is absorbed by the 5b and the tip portions 5a, 5a and is not transmitted to the mounting plate 1a of the frame 1 is
Base end portions 5c, 5c and intermediate portion 5 of the flexible heat transfer means 5, 5
The area where heat of the motor 2 is conducted to the mounting plate 1a of the frame 1 is increased as compared with the above-described embodiment, by being conducted to the mounting plate 1a of the frame 1 through b and 5b and the tip portions 5a and 5a.

In the embodiment shown above, the flexible heat transfer means 5 is used.
The front end portion 5a and the intermediate portion 5b are formed of a flat knitted band, and the base end portion 5c is formed of a metal plate having excellent thermal conductivity to be integrated, but the present invention is not limited to this, and the bending of the heat transfer means 5 is performed. Middle part 5
The parts up to b may be made of a metal plate, and in this case, it is necessary to dispose the intermediate portion 5b made of a metal plate so as not to contact the mounting plate 1a of the frame 1.

Further, as the motor 2 rotates, the belt B
Although the case where the door A is reciprocally moved in the horizontal direction to open and close by opening and closing the door A is shown, the present invention is not limited to this. The door may be reciprocated in a direction other than the direction to be opened and closed, and the entire structure of the automatic opening / closing door is not limited to that shown in FIG. 4, and various modifications are possible.

[0018]

Since the present invention has the above-mentioned structure, it has the following advantages. 1. By bringing the tip of the flexible heat transfer means connected to the motor into contact with only the frame, the vibration from the motor is absorbed by the flexible heat transfer means and is not transmitted to the frame, but only the heat of the motor is transmitted. Since the heat is conducted to the frame through the flexible heat transfer means, the heat radiation performance from the motor can be improved while maintaining the vibration isolation function.

Therefore, as compared with the conventional motor that only cools the motor by radiating heat to the air, the motor does not store heat even when the door is frequently opened and closed for a long time. It is economical because damage can be prevented and it can be used for a long period of time, and it also has a function of blocking the vibration generated from the motor and the speed reducer, so that the vibration does not cause discomfort to the occupants.

2. The heat of the motor is conducted to the frame by connecting the flexible heat transfer means to the opposite end surfaces of the motor and bending the middle part of these heat transfer means so that the tip ends contact only the frame. Since the area is increased, the heat radiation performance from the motor to the frame can be further improved.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional plan view of an automatic opening / closing door showing an embodiment of the present invention, in which some essential parts are cut away.

FIG. 2 is a vertical sectional front view of the same.

FIG. 3 is a vertical side view of the same, with a part of a main part cut away.

FIG. 4 is a front view showing the entire automatic opening / closing door.

FIG. 5 is an enlarged perspective view of a heat transfer unit.

FIG. 6 is an enlarged perspective view showing a modified example of the heat transfer means.

FIG. 7 is a cross-sectional plan view of an automatic opening / closing door according to another embodiment of the present invention, in which some essential parts are cut away.

[Explanation of symbols]

A door 1 frame 2 motor 2a end face 2b end face 3 speed reducer 4 anti-vibration elastic body 5 flexible heat transfer means 5a tip part 5b middle part

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Claims (2)

(57) [Claims] 1. A motor for opening and closing a door and a speed reducer connected to the motor are supported by a frame via an anti-vibration elastic body so that vibrations generated from the motor and the speed reducer are transmitted to the frame. In the automatic opening / closing door attached to the transmission cutoff, a flexible heat transfer means is connected to the motor, and the tip end of the heat transfer means is arranged so as to be in contact with only the frame, and the heat transfer means is at least
A flat knit made of metal wire with a flat knitting tip that contacts the arm
An automatic door that is made up of obi . 2. An automatic system according to claim 1, wherein flexible heat transfer means are connected to opposite end surfaces of the motor, respectively, and an intermediate portion of these heat transfer means is bent so that a tip end thereof is brought into contact with only the frame. Opening and closing door.