JPH0554247A - Door device of automatic vending machine - Google Patents

Abstract

PURPOSE:To secure safety when a door is opened and closed and shorten the selling time. CONSTITUTION:A door body 5 is provided in an opening and closing state at a vending opening 3. A door arm 67 which enables the door body 5 to be pushed in an opening direction is supported rotatably on a fulcrum shaft 66. A motor arm 64 which is rotated by a motor 63 is provided. The contact part 65 of the motor arm 64 contacts an edge part of the door arm 67 to rotate the motor arm 64. When the door body is opened and closed, the contact part 65 of the motor arm 64 shifts in contact position from a position distant from the fulcrum shaft 66 at the edge part of the door arm 67 to a close position. The angle of rotation of the motor arm 64 when the door body is opened needs to be larger than that when the door body is closed. The door body 5 rotates slowly when opened and quickly when closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device for an automatic vending machine which automatically opens and closes a door provided at a sales outlet.

[0002]

2. Description of the Related Art In a vending machine, for example, Japanese Patent Laid-Open No.
As described in Japanese Patent No. 168390, when a door of a selling port is provided so as to be automatically opened and closed, the door is automatically opened when a product is put out to the selling port, and when the product is taken out from the selling port. There is a device provided with a door device that automatically closes the door body.

The opening / closing rotation of the door body is performed by the forward / reverse driving of the motor, and the rotation speed when the door body is opened and the rotation speed when the door body is closed are the same.

[0004]

When the opening / closing speed of the door is high, the door is suddenly opened when the door is opened, which may surprise the user or hit the user. There is a problem with safety. On the contrary, if the rotation speed of the door body is slow when opening and closing, the door body is opened slowly when opening, which is good for safety, but if the door body is closed slowly when closing, the door body will close. There is a problem that the sales time will be long because the next sale cannot be performed until it is told.

As described above, in the conventional door device in which the door body is automatically opened and closed, there is a problem whether the rotation speed of the door body is high or low at the time of opening and closing.

The present invention has been made in view of the above points, and the safety is ensured by slowly rotating the door when the door is opened, and the sales time is increased by quickly rotating the door when the door is closed. It is an object of the present invention to provide a door device for a vending machine which is shortened.

[0007]

According to the present invention, there is provided a door body which is rotatably supported by a support shaft on one side of a sales opening and which opens and closes the sales opening, and an inside of the one side of the sales opening. , A substantially L-shaped one end rotatably supported by a fulcrum shaft and the other end capable of pushing the door body at least in the opening direction, and at least the door body in the closing direction. A closing biasing means for biasing, a motor arm that is rotatable about a drive shaft, and has a contact portion that contacts the edge portion of the door arm to rotate the door arm in the door body pushing direction, and the door. A motor that rotates the drive shaft in one direction such that the contact portion of the motor arm changes to a position closer to a position closer to the fulcrum shaft of the edge portion of the door arm when the body is opened and closed. It is equipped with and.

[0008]

According to the present invention, when the door is opened, the motor arm rotates in one direction by driving the motor, the contact portion of the motor arm pushes the edge of the door arm, and the door arm rotates in the door pushing direction. Then, the door is opened and rotated. Then, in a contact state where the motor arm is perpendicular to the edge of the door body arm,
The door is in the open state where it is most open.

Further, when the motor arm is rotated in one direction by driving the motor in a contact state in which the motor arm is perpendicular to the edge of the door body arm when the door body is closed, the contact portion of the motor arm is The door body moves in a direction away from the edge of the door arm, the pushing motion of the door body by the door arm is released, and the door body is closed and rotated by the closing biasing means.

Since the contact position of the motor arm changes from a position far from the fulcrum shaft of the edge of the door arm to a position closer to the motor when the door is opened, the motor is opened when the door is opened. The rotation angle of the arm is required to be larger than the rotation angle of the motor arm when the door is closed.Therefore, even if the motor arm rotates at a constant speed by the motor, the door slowly rotates and opens when the door opens. When closed, the door body is swung quickly and closed.

[0011]

EXAMPLE An example in which a door device is applied to a cup beverage vending machine will be described below with reference to FIGS.

In the figure, reference numeral 1 is a front door which is provided on the front surface of a vending machine body (not shown) so as to be openable and closable, and a front door 2 has a front panel 2 on which a sales slot frame 4 having a sales slot 3 is attached. ..

A transparent door body 5 for opening and closing the sales opening 3 is attached to the front surface of the sales opening frame 4. The door body 5 is supported so that it can be opened and rotated with the support shaft 6 at one end as a fulcrum.
It is constantly urged in the closing direction by a spring body 7 as a closing urging means attached to the support shaft 6.

Reference numeral 11 denotes a cup station located on the rear side of the selling port 3 and provided on the main body of the vending machine. The cup station 11 comprises a station frame body 12 having an opening on the front surface. A cup supply space 13 is provided on the rear side and a cup pushing space 14 is provided on the front side, so that two cups C can be simultaneously arranged in the front-rear direction.

Cup supply space 13 of cup station 11
At the upper part of the cup, there is provided a cup guide 15 having a cylindrical shape with a lower constriction for guiding the cup C fed from a cup supply device (not shown) to the cup supply space 13, and from a beverage supply part such as a mixing ball (not shown). A beverage nozzle 16 for injecting the beverage to be extracted into the cup C is provided.

At the bottom of the cup station 11 is a cup C
A cup holder 17 for mounting a cup is placed, and a discharge hole for discharging spilled beverage or cleaning water at the time of cleaning is provided on the bottom surface.
18 are provided.

In the cup holder 17, a plurality of vertical ribs 20 in the front-rear direction and a plurality of horizontal ribs 21 in the left-right direction are formed in a grid pattern in a rectangular frame portion 19, and the upper ends of the vertical ribs 20 are acute-angled. With horizontal ribs
It is formed to project above 21. The cup pedestal 17 is moved upward by a not-shown elevating drive means to the solid line position in FIG. 2 when the size of the cup C is small, and is lowered to the chain double-dashed position in FIG. 2 when the size of the cup C is large. It It should be noted that one side of the frame portion 19 has a flange portion protruding upward.
22 is provided, and the flange portion 22 is formed with a through hole 23 through which light of a sensor 75, which will be described later, passes when the cup pedestal 17 is raised.

Reference numerals 31a and 31b denote a pair of left and right flappers arranged in the cup supply space 13 of the cup station 11,
A projecting frame portion 12 projectingly formed on the rear surface of the station frame body 12
Horizontally rotatably supported by a spindle 32 on each a. The flappers 31a and 31b are a bearing portion 33 that is rotatably fitted to the support shaft 32, an arm portion 34 that protrudes forward from the bearing portion 33, and a bottom portion that is narrower than the arm portion 34 and has a substantially semi-cylindrical upper end. A holder portion 35 is formed close to the lower edge of the cup guide 15.

Further, each bearing portion 33 of each flapper 31a, 31b
Interlocking arm portions 36a and 36b project from each other, and when both interlocking arm portions 36a and 36b are joined, both flapper 31a
31b is interlocked to open and close.

The flappers 31a and 31b are arranged in the cup guide 15 in a closed state in which they are closed in the opposite directions.
It is possible to hold the cup C supplied through the cup C, and release the holding of the cup C in the open state in which the cups C are opened in opposite directions, so that the extrusion movement can be performed forward.

The rotation of the flappers 31a and 31b is restricted by contacting the inner wall of the cup station 11 when opened, and the arm portion 34 of the flapper 31b is fixed to the stopper 37 provided on the protruding frame portion 12a when closed. It is regulated by abutting.

A spring body 38 as an opening urging means is attached to the projecting frame portion 12a, and the spring body 38 pushes the interlocking arm portion 36b forward to urge the flappers 31a and 31b in the opening direction. To do.

Further, a spring body 39 as a closing urging means is provided on the front surface of the interlocking arm portion 36a.
The pusher 41 is formed in a substantially U shape and is pushed by the push-out portion 47 when the push-out body 41 described later retracts to the push-out standby position to resist the spring body 38 and urge the flappers 31a and 31b to the closed state. The flapper 31a, 31b is elastically allowed to be forcibly opened in the biased state.

Reference numeral 41 denotes an extruded body disposed on one side of the cup station 11, which is a drive frame 42 on one side of the station frame 12.
It is supported so as to be movable in the front-rear direction along a guide shaft 43 that is vertically installed in two pieces in the front-rear direction. This extruded body 41
Is a moving base 45 having slide members 44, which are formed in a substantially U-shaped cross section and are slidably fitted on the guide shaft 43, attached at both ends.
In addition, it has an arm 46 which is screwed to the moving base portion 45 and penetrates into the cup station 11 through a groove portion 12b opened in the front-rear direction on one side of the station frame body 12.

The arm 46 penetrates into the station frame 12 from the groove 12b, and the arm 46a is bent downward along one side surface of the station frame 12 and
From the bottom of this arm 46a, the cup station frame 12
An arm portion 46b is bent and formed in a substantially L shape along the rear surface.

A push-out portion 47 is screwed to the front surface of the tip of the arm 46. Holding parts 48 are formed on both sides of the pushing part 47, and the holding parts 48 are directed inward in correspondence with the circumferential surface of the cup C when viewed from the plane direction as shown in FIGS. 1 and 5. 2 and 3 while being formed in an inclined shape
As seen from the front and side directions, it is formed in an inclined shape toward the center of the upper end. In addition, this extruding portion 47,
As shown in FIG. 5, both large and small cups C can be accommodated. In addition, a pressing portion 49 that contacts the spring body 39 and presses it backward is formed at the upper rear portion of the pushing portion 47.

At the push-out standby position where the push-out body 41 is retracted, the push-out portion 47 is located rearward of the cup supply position 13 where the cup C is held by the flappers 31a and 31b, and the spring body 39 is pushed backward by the pressing portion 49. Is pressed against. In addition, the extruded body 41
At the time of advancing, the push-out portion 47 engages with the rear portion of the cup C in the cup supply space 13, and pushes the cup C from the cup supply space 13 into the cup push-out space 14.

Reference numeral 51 denotes an extruding member drive means for moving the extruding member in the front-rear direction. A motor 53 is attached to a frame 52 provided between the front and rear inner walls of the drive part frame 42, and a spindle is provided.
A lever 55 is swingably supported by 54. A motor arm 56 is attached to a drive shaft 53a of the motor 53, and a roller 57 rotatably provided at the tip of the motor arm 56 is engaged with a long hole 55a provided along a longitudinal direction of a lever 55. .. A roller 58 is rotatably provided at the upper end of the lever 55, and the roller 58 is engaged with a long hole 45a formed in the moving base portion 45 of the extrusion body 41 so as to be elongated in the vertical direction.

The position where the lever 55 swings backward is the standby position, and the motor arm 56 is driven by the motor 53.
Is rotated once, and the lever 55 is rocked back and forth back and forth.
Moves back and forth.

Further, a switch 59a for detecting a standby position where the lever 55 swings backward is provided, and a switch 59a for detecting a swing position where the lever 55 swings forward.
b is provided.

Reference numeral 61 is a door body opening / closing drive means for opening and closing the door body 5. A motor 63 is attached to the upper surface of a support frame 62 fixed to the back surface of the front panel 2 of the front door 1, and the support frame of this motor 63 is provided. A motor arm 64 is attached to a drive shaft 63a projecting from the lower surface of 62, and a roller 65 as a contact portion is rotatably supported at the tip of the motor arm 64.

A door arm 67 is rotatably supported on the lower surface of the support frame 62 by a fulcrum shaft 66. This door arm
67 is formed in a substantially U-shape having an upper arm portion 68, a lower arm portion 69, and a connecting portion 70 connecting both arm portions 68, 69, and the vicinity of the connecting portion 70 of both arm portions 68, 69. Is rotatably supported by a fulcrum shaft 66. At the tip of the lower arm portion 69, there is an arm portion 69a that projects in a substantially L shape toward the front, and at the tip of this arm portion 69a, a roller 71 that can come into contact with the back surface of the door body 5 is rotatable. Is supported by.

A connecting shaft 72 is provided between both arm portions 68 and 69, and a door arm 67 is attached to the connecting shaft 72 rearward, that is, in FIG.
A spring 73 for biasing the counterclockwise direction about the fulcrum shaft 66 is coupled.

The state shown by the solid line in FIG. 1 in which the roller 65 of the motor arm 64 contacts the edge of the upper arm portion 68 farther from the fulcrum shaft 66 of the door arm 67 is the standby position, and the motor arm 63 is driven to drive the motor arm. When 64 rotates in the clockwise direction in FIG. 1, the door arm 67 is pushed forward, the roller 71 contacts the door body 5, and the door body 5 is opened. The state of the two-dot chain line in FIG. 1 is the open position where the door body 5 is most opened, and when the motor arm 64 is further rotated in the same direction from this open position, the door arm 67 is pulled backward by the spring 73. The door body 5 is closed by the spring body 7 while swinging to.

The contact position of the roller 65 of the motor arm 64 changes from the position far from the fulcrum shaft 66 at the edge of the upper arm portion 68, so that the motor arm 64 when the door is opened
Is required to be about twice as large as the rotation angle of the motor arm 64 when the door body is closed. Therefore, even if the motor arm 64 is rotated at a constant speed by the motor 63, the door body 5 is slowly opened when the door body is opened. The door 5 is rotated to be opened and closed when closed.
Swivels quickly and is blocked.

A switch 74 for detecting the standby position of the motor arm 64 is also provided.

When a pair of light projecting and receiving sensors 75 are arranged on both sides of the station frame 12 corresponding to the cup pushing space 14, and the through holes 12c provided in the station frame 12 and the elevated position are provided. The presence of the cup C in the cup pushing space 14 is detected by projecting and receiving the detection light through the through hole 23 of the cup receiving stand 17.

FIG. 6 shows a control means 81 for controlling the push-out body drive means 51 and the door body opening / closing drive means 61.
Controls the driving of the motors 53, 63 of the respective means 51, 61 based on the input of the injection completion signal from the control unit on the vending machine body side. In addition, the signals from the switches 59a, 59b, 74 and the sensor 75 are also input for control.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG.

In the standby state for sale, the push-out body 41 is at the retracted push-out standby position, the flappers 31a and 31b are in the closed state, and the door arm 67 is retracted to close the door body 5.

Then, when coins equal to or more than the beverage unit price are put into the vending machine (steps 1 and 2) and the selection button is pressed (step 3), the cup C into which the beverage has been injected in the previous selling operation is discharged from the cup supply space 13. It is determined whether the extruded body 41 extruded into the cup extruding space 14 has returned to the extruding standby state and is ready for the next selling operation (step 4).

If the selling operation is possible, the cup C sent out from the cup supply device falls on the cup holder 17 of the flappers 31a and 31b through the cup guide 15 and is held on the cup holder 17 while being held. (Step 5). At this time,
The cup holder 17 is moved up and down according to the size of the cup C.

For example, if coffee or the like is selected, the powder raw material and hot water are put into a mixing ball and mixed, and the mixed liquid is poured into the cup C from the beverage nozzle 16 (step 6).

After the injection is completed (step 7), when the injection completion signal is input to the control means 81, on condition that the sensor 75 does not detect the cup C in the cup extrusion space 14 (step 8), The motor 53 is driven in step 9 and the motor 63 is driven in step 13.

By driving the motor 53, the arm 55 is swung forward and the push-out body 41 is integrally moved forward. When this extruded body 41 moves forward, first, the extruded part
Since the backward pressing of the spring body 39 by 47 is released, the elasticity of the spring body 38 causes the pair of left and right flappers 31a, 31b to open and rotate, and then the pushing portion 47 contacts the rear surface of the cup C. The push-out section 47 brings the cups C to the center by the holding sections 48 on both sides, and pushes the lower side of the center of gravity of the cup C into which the beverage has been poured forward.

The cup C slides on the vertical ribs 20 of the cup holder 17. The vertical ribs 20 project above the horizontal ribs 21 so that the cup C is not caught, and the upper end thereof has an acute angle so that the frictional resistance with the bottom surface of the cup C is small and the cup C is prevented from falling.

Then, the cup C is extruded from the cup supply space 13 to the cup extruding space 14 by the extruding body 41, and the sensor 75 detects it (step 10).

After that, the arm 55 is swung backward, and the pushing body 41 is integrally moved backward. And
The pushing portion 49 of the pushing portion 47 pushes the spring body 39 rearward,
The pair of left and right flappers 31a and 31b are closed and rotated against 38.

When the push-out body 41 returns to the push-out standby position, the switch 59a is turned on by contact with the arm 55 (step 11), and the driving of the motor 53 is stopped (step 12).

On the other hand, by driving the motor 63, the door arm 67
Is swung forward, and the door body 5 is slowly rotated and opened as described above. After a predetermined time has passed (step 14),
For example, when the door body 5 is most opened, the motor 63
Is stopped (step 15). In this way, the door body 5 is slowly opened, so that safety is ensured.

Therefore, the door body 5 is automatically opened,
Since the cup C is extruded up to a place near the selling port 3, the user can easily take out the cup C from the selling port 3.

Then, when the cup C is taken out and the detection of the cup C by the sensor 75 is stopped (step 16), after a predetermined time has elapsed (step 17), the driving of the motor 63 is restarted (step 18), and the door arm 67. Is swung backward, and the door body 5 is swung quickly and is closed as described above. When the door arm 67 returns to the standby position, the switch 74 is turned on (step 19) and the motor 63 is stopped (step 20). In this way, the door body 5 is closed quickly, so that the selling time is shortened and the next selling operation can be quickly started.

Further, after the completion of step 12, the next selling operation can be continuously performed even if the opening / closing operation of the door body 5 is performed or the cup C extruded into the cup extruding space 14 is not taken out. .. That is, with the cup C in the cup pushing space 14, as described above, the cup supply space 13 for the cup C
To the cup C, and the operation of injecting the beverage into the cup C is performed.

At the completion of the injection, if the previously sold cup C has been taken out, the pushing operation of the currently sold cup C is started, and if the previously sold cup C has not yet been taken out, it is taken out. Wait for the pushing operation of the cup C sold this time. Therefore, continuous sales are possible and the sales time can be shortened.

In the case of this continuous sale, the cup C of the present sale is waiting for the pushing operation of the cup C of the present sale.
Even if is taken out, the pushing operation of the cup C sold this time is not immediately performed, but the pushing operation of the cup C sold this time and the opening operation of the door body 5 are performed after the door body 5 is once closed. Alternatively, the door body 5 may be held in an open state and the pushing operation of the cup C sold this time may be performed.

Further, an electric failure or a mechanical failure of the drive circuit of the motor 53 of the extrusion body drive means 51 or the like occurs, and the extrusion body
Even if 41 is stuck in the pusher standby position, if one flapper 31b is pushed outward, elastic deformation of the spring body 39 allows the flapper 31b to rotate, and both flappers 31b are allowed to rotate.
The flapper 31a
, 31b, it is possible to take out the cup C, so that you can put the hand in the selling port 3 to take out the cup C, as in the case of the conventional cup drink vending machine, and the sales will continue without any trouble. be able to.

Even if the drive circuit of the motor 63 of the door body opening / closing drive means 61 is electrically or mechanically damaged and the door body 5 cannot be automatically opened, Since the body 5 can be freely opened and closed manually, the sale can be continued without any trouble.

FIG. 8 shows another embodiment of the pushing operation of the cup C (corresponding to steps 9 to 12 of the above-mentioned embodiment).

In this embodiment, the motor 53 is driven (step 21), the sensor 75 detects the cup C pushed into the cup pushing space 14 by the pushing body 41 (step 22), and the arm 55.
After a lapse of a predetermined time from the contact of the switch 59b with the switch 59b (step 23), the motor 53 is stopped immediately before the pushing portion 47 contacts the spring body 39 (step 24).

When the motor 53 is stopped, both flappers are
The flappers 31a and 31b do not get in the way when the user takes out the cup C because the openings 31a and 31b are open.

When the sensor 75 detects that the cup C has been taken out (step 25), the motor 53 is driven (step 26), the push-out body 41 returns to the push-out standby position, and the switch is contacted with the arm 55. When 59a is turned on (step 27), the driving of the motor 53 is stopped (step 28).

Therefore, in this embodiment, when the cup C is taken out, the flappers 31a and 31b are kept in an open state so that the flappers 31a and 31b do not get in the way and the cup C is not disturbed.
Can be taken out easily.

In the above embodiment, the motors 53 and 63 are driven simultaneously to perform the pushing operation of the cup C and the opening operation of the door body 5 at the same time. However, at a timing such that the pushing operation of the cup C is completed. The opening operation of the door body 5 may be started. In this case, the selling time is slightly longer than that in the above-mentioned embodiment, but since the cup C has already stopped when the door 5 is opened, it is possible to prevent the cup C from being missed.

In the above embodiment, the door body 5 is not closed until the cup C is taken out with the door body 5 opened, but even if the cup C is not taken out, the door body 5 is opened for a predetermined time. The door body 5 may be closed after a lapse of time. In this case, it is possible to reduce the chances that insects or the like enter the airframe through the selling port 3. Even if the door body 5 is closed in this way, there is no problem because the door body 5 can be opened manually.

Further, a buzzer or the like may be used to notify when the door 5 is opened or closed.

[0066]

According to the present invention, when the motor is driven, the motor arm rotates in one direction, and the door arm contacting with the contact portion of the motor arm swings to open and close the door body. , When the door is opened and closed
Since the contact position of the motor arm changes from the position far from the fulcrum shaft of the edge of the door arm to the position closer to it, the rotation angle of the motor arm when the door is open is greater than that when the door is closed. Therefore, even if the motor rotates the motor arm at a constant speed, the door slowly rotates when the door is opened to ensure safety, and the door rotates quickly when the door is closed. It will be blocked and the sales time can be shortened.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a cup beverage vending machine to which a door device of the present invention is applied, as seen from a plane direction.

FIG. 2 is a sectional view seen from the front direction.

FIG. 3 is a cross-sectional view seen from a side surface direction.

FIG. 4 is a sectional view of a portion of an extruding body driving means.

FIG. 5 is a plan view of an extrusion unit.

FIG. 6 is a block diagram of a control circuit.

FIG. 7 is a flowchart of a sales operation.

FIG. 8 is a flowchart showing another embodiment of the selling operation.

[Explanation of symbols]

 3 Sales outlet 5 Door body 6 Support shaft 7 Closing biasing means 63 Motor 63a Drive shaft 64 Motor arm 65 Contact part 66 Support point shaft 67 Door arm

Claims (1)

[Claims] 1. A door body that is rotatably supported by a support shaft on one side of the sales outlet to open and close the sales outlet, and is disposed inside the one side of the sales outlet and is formed into a substantially L shape. A door arm having one end rotatably supported by a fulcrum shaft and the other end capable of pushing the door body at least in the opening direction; and a closing biasing means for biasing at least the door body in the closing direction. , A motor arm that is rotatable about a drive shaft and that has a contact portion that contacts the edge of the door arm and rotates the door arm in the door body pushing direction, and both when the door body is opened and closed. A motor for rotating the drive shaft in one direction so that the contact position of the motor arm changes from a position far from a fulcrum shaft of the edge of the door arm to a position closer to the fulcrum shaft. Door device for vending machines.