JPH10222740A - Automatic door opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively supply the device with a simple structure by making an idler share the functions as a tension pulley and as a detecting means of opening/closing member stop based on an obstacle. SOLUTION: When a coin is inserted, a coin detecting means detects it and outputs a product selectable signal to an article selection switch 3, and a motor normal rotation start signal is outputted when the switch is turned on. The normal rotation of the motor 16 drives a chain 19 counterclockwise, and a contact hardware 14 comes into contact with a 1st limit switch when a taking out opening 4 is completely opened and outputs a stop signal to the motor 16. When shoes to be lent are taken out, the limit switch detects it, the motor 16 reversely rotates, an opening/closing member 5 closes the opening 4 down. However, when the member 5 hits an obstacle, the chain 19 is loosened, tension increases among a fixture plate 11, a driven gear 18, an idler 20 and a driving gear 17, the idler 20 is separated from a 3rd switch 25, the motor 16 normally rotates and the member 5 moves in the direction of an opened door.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door opening / closing apparatus which is applied to an opening of an automatic article supplying apparatus for automatically supplying articles to an article taking-out port or an opening / closing door of an elevator.

[0002]

2. Description of the Related Art As a conventional automatic shoe rental device, for example, as shown in Japanese Utility Model Application Laid-Open No. 59-130184, several turntables having a plurality of accommodation chambers arranged radially are arranged up and down in the body.
Each of these turntables is rotated by electric means,
One in which each storage chamber is successively brought to an outlet, or a plurality of shelves arranged in multiple stages up and down, and a storage portion is formed in each of these shelves radially to form the entire shelf as one rotating body. In some cases, the body is rotated by a single electric means to bring each housing portion to the outlet.

[0003] On the other hand, an automatic article supply device such as a vending machine generally has a coin insertion slot, an article accommodating chamber, and an article exit in the main body of the apparatus. It is designed to be automatically supplied from the chamber to the article outlet. Usually, a flapper for opening and closing the outlet is provided at the article outlet so as to be swingable in a direction orthogonal to the opening opening surface, and after pulling the flapper forward to take out the articles, the flapper is removed. When the flapper is released, the flapper swings by its own weight and hits the outlet to close the outlet.

[0004]

However, in the above-mentioned conventional automatic shoe rental apparatus, since the article take-out opening is open and the door is not provided, the article take-out opening is always empty from the viewpoint of theft prevention and the like. The storage room is located, and the turntable is rotated only after the coin is inserted and the shoe is specified by the selection button, and the storage room in which the shoes are stored is brought to the outlet, so that All the accommodation rooms could not accommodate shoes, resulting in poor space efficiency. In addition, when the shoe is specified by inserting coins and selecting the button, the turntable rotates, but since the article exit is open and the door is not provided as described above, the turntable is erroneously stored at the time of rotation. There was a risk that a hand or the like hung in the room might get caught between the airframe and the turntable.

On the other hand, in an automatic article supply device of a flapper opening / closing type such as a vending machine, the flapper is in contact with the outlet only by the oscillating power of its own weight, and therefore, even when the wind force is not so strong, As a result, the flapper may rise and separate from the outlet, and at this time, wind flows into the apparatus main body from the outlet, so that a temperature loss occurs when the article heating device or the cooling device is operating.

According to the first and second aspects of the present invention, an opening / closing member is provided at an opening such as an outlet, and when the opening / closing member is moved in the closing direction, the movement of the opening / closing member is stopped by a change in tension of the transmission member. By providing a motor reversing means for detecting a displacement of the idler based on the motor and outputting a motor reversing signal for reversing the rotation of the motor in a direction for moving the opening / closing member in the opening direction, the space efficiency can be reduced by omitting an empty accommodation chamber. It is intended to improve the safety when the opening / closing member moves in the closing direction.

[0007]

As first means, an opening / closing member capable of opening and closing an opening, a driving pulley, a driven pulley, and an idler driven by a motor capable of rotating forward and backward, and winding around the driving pulley and the driven pulley. While being hung, a tension member is applied by the idler, and the opening / closing member is connected to the transmission member for moving the opening / closing member in the opening / closing direction, and when the opening / closing member moves in the closing direction, the movement of the opening / closing member is stopped. A motor reversing means for detecting a displacement of the idler based on a change in tension of the transmission member and outputting a motor reversal signal for reversing the rotation of the motor in a direction to move the opening / closing member in the opening direction;

As a second means, an opening / closing member which can open and close an article take-out opening provided in an apparatus main body having a coin insertion slot, a driving pulley driven by a forward / reverse rotation motor, a driven pulley, and an idler, A transmission member that is wound around the driving pulley and the driven pulley, is tensioned by the idler, and is connected to the opening and closing member, moves the opening and closing member in the opening and closing direction, and a predetermined type of coin is inserted. And a coin detection means for outputting an article selectable signal by detecting that the switch is turned on by inputting the article selectable signal, and outputting a motor forward rotation start signal for rotating the motor forward by turning on the switch. An article selection switch and a motor stop signal for stopping the motor upon detecting that the opening / closing member has reached the open position are output. 1 detection means, article removal detection means for detecting that articles in the opening have been taken out and outputting a count start signal, and starting counting by inputting the count start signal, and starting the motor when the set time expires. A timer for outputting a motor reverse rotation start signal for reversing the opening and closing member to move in the closing direction, a second detection unit for detecting that the opening and closing member has reached the closed position and outputting a motor stop signal, When the opening / closing member moves in the closing direction, the displacement of the idler based on the fluctuation in the tension of the transmission member due to the stop of the movement of the opening / closing member is detected, and the motor is reversed from the reverse rotation to the normal rotation to move the closing member in the opening direction. And a third detection unit that outputs a motor normal rotation signal for causing the motor to rotate.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an entire automatic shoe rental apparatus to which the automatic opening and closing device according to the present invention is applied, and FIG.
FIG. 3 is a schematic front view showing a main part, and FIG. 3 is a side view of a connecting member.

In FIG. 1, reference numeral 1 denotes an apparatus main body. The apparatus main body 1 has double-opening doors 30a and 30b on its front face,
0a is provided with a coin slot 2 and an article selection switch 3 for designating a desired article, and a left door 30b is provided with an outlet 4 and an outlet 4 forming an opening for taking out the specified article.
And an opening / closing member 5 for opening and closing.

On the other hand, several rotating disks having a plurality of storage chambers (not shown) are arranged vertically in the apparatus main body 1,
Each of these rotating discs is rotated by a motor, so that each storage chamber is sequentially brought to the take-out port 4.

At the bottom of each accommodation room, there is a Japanese Utility Model Application Laid-Open No. 59-130.
As shown in No. 182, the shoe rental board placed upward by the spring member is placed, and when the shoe rental is taken out of the accommodation room, the shoe rental board is pushed upward by the biasing force of the spring member. It is designed to be displaced. The upward displacement of the shoe rental board is detected by a limit switch, and when the limit switch detects this, a count start signal is output to a timer (not shown). Then, the timer starts counting, and when the set time expires, outputs a motor reverse rotation start signal to the motor 16 described later.

Each turntable 3 is provided inside the outer plate of the left door 30b.
1, a frame plate 6 is provided in front of the frame plate 6. Each frame plate 6 has a window forming an outlet 4,
A gear chain mechanism installation area 7 is provided adjacent to the window and on the front side of the frame plate 6.

The opening / closing member 5 is formed from a rectangular plate.
As shown in FIG. 3, an L-shaped guide bracket slidably engages with the upper end of the frame plate 6 on the upper end back surface and the lower end of the frame plate 6 on the lower end back surface. 8 is formed, and the opening / closing member 5 can be moved along the frame plate surface 6 with almost no gap formed between the opening / closing member 5 and the opening 4.

A connecting plate 10 is fixed to the center of the front end of the opening / closing member 5 via a screw 9. As shown in FIG. 4, a mounting plate 11 stands up from the connecting plate 10 and is bolted. It is fixed to a chain 19 described later via a nut 12. Reference numeral 14 denotes a contact fitting, which is formed of a band-like plate whose left and right ends are bent obliquely downward and outward, and is fixed to the upper surface of the mounting plate 11 via bolts and nuts 12.

In the gear chain mechanism installation area 7 of the frame plate 6, a driving gear 17 and a driven gear 18 driven by a motor 16 which can be rotated forward and backward are installed.
Is wound around a chain 19 constituting a transmission member. Reference numeral 20 denotes an idler. The idler 20 has one end rotatably attached to the other end of a swing link 21 pivotally connected to the frame plate 6, while the swing link 21 has one end connected to the frame plate 6 and the other. The end is urged by a spring member 22 fixed to the swing link 21, and the idler 20 is constantly pressed against the chain 19 by this urging force.

Next, each limit switch constituting the first, second and third detecting means will be described. The first detecting means is constituted by a first limit switch 23 located near the driving gear 17, and the second detecting means is constituted by a driven gear 18
The second limit switch 24 is located in the vicinity of the first and second switches. When the contact fitting 14 comes into contact with any of the limit switches 23 and 24, a signal is output to a relay (not shown). Each relay to which the signal has been input outputs a motor stop signal for stopping the motor 16.

The third detecting means comprises a third limit switch 25 installed near the idler 20,
The idler 20 is constantly pressed against the third limit switch 25 by the urging force of the spring member 22. When the idler 20 is separated from the third limit switch 25, the limit switch 25 supplies a signal to a relay (not shown). Then, the relay outputs a motor normal rotation signal to the motor 16 to invert the motor 16 from reverse rotation to normal rotation.

The position of the third limit switch 25 is not limited to the above, but may be in the vicinity of the swing link 21 as shown by a dashed line in the drawing. The third limit switch 25 is constantly pressed by the urging force of the member 22.

Next, the operation of the present embodiment will be described.
As shown in FIG. 2, when a predetermined coin is inserted into the coin insertion slot 2 from a state in which the opening 4 is closed by the opening / closing member 5, coin detection means (not shown) such as a magnetic sensor detects this and selects an article. An article selectable signal is output to the switch 3. The output of the signal causes the article selection switch 3 to be in a switchable state, and outputs a motor forward rotation start signal for rotating the motor 16 forward by switching on.

Then, the chain 1 is driven by the forward rotation of the motor 16.
9 starts driving counterclockwise, and the opening / closing member 5 connected to the chain 19 also moves to the left. Then, when the opening / closing member 5 completely opens the outlet 4, the contact fitting 14 reaches the vicinity of the motor 16 and contacts the first limit switch 23 as shown by a dashed line in FIG. As a result, the limit switch 23 outputs a motor stop signal for stopping the motor to the motor 16 via the relay as described above.

With the door 4 open, the shoe rental user can take out the shoe rental from the accommodation room, and when the shoe rental is taken out of the accommodation room, the shoe rental mounting plate is moved by the urging force of the spring member. When the limit switch detects the upward displacement, the limit switch outputs a count start signal to a timer (not shown). Then, the timer starts counting, and outputs a motor reverse rotation start signal to the motor 16 when the set time has expired.

When the motor 16 starts to rotate in the reverse direction, the chain 19 starts moving in the opposite direction, and the opening / closing member 5 moves rightward. When the opening / closing member 5 completely closes the outlet 4, the contact fitting 14
Abuts on the second limit switch 24, which outputs a motor stop signal to the motor 16 via the relay as described above.

By the way, when the opening / closing member 5 is moved in the closing direction and the opening / closing member 5 hits an obstacle such as a hand or an article, the motor 16 is driven even though the opening / closing member 5 cannot move further in the closing direction. In order to continue the reverse rotation drive, the chain 19 loosens between the driving gear 17 and the mounting plate 11, while the tension increases between the mounting plate 11, the driven gear 18, the idler 20, and the driving gear 17. Then, since the swing link 21 swings clockwise, the idler 20
Is separated from the third limit switch 25, and as a result, the motor 16 is reversed from the reverse rotation drive to the normal rotation drive as described above, and the opening / closing member 5 moves in the door opening direction again. Then, when the contact fitting 14 contacts the first limit switch 23,
The limit switch 23 outputs a motor stop signal via a relay.

At this point, since the accommodation room is empty and the shoe mounting plate has been displaced upward by the spring force, the timer starts counting immediately, and when the set time expires, the above-described operation is started. To output the motor reverse rotation start signal.

In this embodiment, the opening / closing member 5 is slid along the opening surface of the outlet 4. However, the present invention is not limited to this, and the opening / closing member 5 is swung in a direction perpendicular to the opening surface of the outlet 4. It is also possible to arrange them freely. In this case, for example, a rod connected to the chain 19 is fixed to the opening / closing member.

In the above, an example in which the present invention is applied to an automatic shoe renting device has been described. However, it is needless to say that the present invention can be applied not only to the automatic vending machine but also to an automatic opening / closing door of an elevator. It is also possible to apply. Even in conventional elevators, measures are taken to take measures to open the door once an obstacle is detected when the door is closed, but the structure does not become complicated, such as the need to make the door threefold. However, when the present invention is applied, the structure can be simplified.

[0028]

According to the first and second aspects of the present invention, the idler serves both as a tension pulley for applying tension to the transmission member and as a means for detecting the stop of the opening / closing member based on an obstacle. The structure can be simplified and supplied at low cost. In addition, since the opening and closing member is provided at the opening, it is not necessary to locate an empty accommodation room in the opening from the viewpoint of theft prevention, and articles can be accommodated in all the accommodation rooms. Increase.

Further, as described above, since the opening / closing member is provided in the opening, it is not possible to put a hand or the like in the interior of the accommodation chamber, and thus the safety is improved. Furthermore, since the opening / closing member is connected to the transmission member, the opening / closing member does not rise from the opening due to the wind, and therefore, the heat retaining effect is increased. Furthermore, since the elevator can be installed in a single-layer door, the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example in which an automatic opening and closing device according to the present invention is applied to an automatic article supply device.

FIG. 2 is a schematic front view showing a main part.

FIG. 3 is a side view of the connecting member.

FIG. 4 is a side view of the mounting plate.

[Description of Signs] 4 ... Take-out port (opening) 5 ... Opening / closing member 6 ... Frame plate 16 ... Motor 17 ... Driving pulley 18 ... Follower pute 19 ... Chain (transmission member) 20 ... Idler

Claims (2)

[Claims] 1. An opening / closing member capable of opening and closing an opening, a driving pulley, a driven pulley, and an idler driven by a motor that can be rotated forward and backward, wound around the driving pulley and the driven pulley, and tension is applied by the idler. A transmission member to which the opening / closing member is connected and the opening / closing member is moved in the opening / closing direction; and a displacement of the idler due to a change in tension of the transmission member due to the stoppage of the movement of the opening / closing member when the opening / closing member moves in the closing direction. And a motor reversing means for outputting a motor reversing signal for reversing the rotation of the motor in a direction in which the opening and closing member is moved in the opening direction upon detection of the automatic door opening / closing device. 2. An opening / closing member provided on a main body of the apparatus having a coin insertion slot, the opening / closing member for opening / closing articles, a driving pulley, a driven pulley, and an idler driven by a motor capable of rotating forward and backward, and the driving pulley. A transmission member that is wound around a driven pulley, is tensioned by the idler, is connected to the opening and closing member, and moves the opening and closing member in the opening and closing direction, and detects that a predetermined type of coin has been inserted. A coin detecting means for outputting an article selectable signal, and an article select switch for outputting a motor normal rotation start signal for turning on the motor by turning on the switch while inputting the article selectable signal. First detecting means for detecting that the opening / closing member has reached the open position and outputting a motor stop signal for stopping the motor; And an article take-out detecting means for outputting a count start signal by detecting that the articles in the opening is removed, starts counting by the input of the count start signal,
When the set time has expired, a timer for outputting a motor reverse rotation start signal for rotating the motor in the closing direction by rotating the motor in the closing direction, and outputting a motor stop signal upon detecting that the opening and closing member has reached the closed position. A second detecting means for detecting, when the opening / closing member moves in the closing direction, a displacement of an idler based on a change in tension of a transmission member due to a stop of the movement of the opening / closing member, and inverting the motor from reverse rotation to normal rotation, An automatic door opening / closing device, comprising: third detection means for outputting a motor normal rotation signal for moving the closing member in the opening direction.