JP2007334496A - Commodity delivery outlet door device of automatic vending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide type commodity delivery outlet door device provided at a commodity delivery outlet of an automatic cup beverage vending machine which assures safety from finger catching with a simple mechanism. <P>SOLUTION: The commodity delivery outlet door device comprises a pair of clutch plates 41 and 42, and a spring 43 holding engagement of the clutch plates 41 and 42. When predetermined load is applied, clutch plates 41 and 42 are separated by compression of the spring 43, and the clutch plate 41 of one side of a power transmission section 40 which suspends transmission of drive force of a drive motor 30 at an output shaft 31 side, and the clutch plate 42 of another side is arranged to an arm 32 side. When predetermined load is received at movement of a door plate 23, transmission of drive force from the drive motor 30 to the arm 32 stops, and movement of a door plate 23 is stopped by separation of the clutch plates 41 and 42 of the power transmission section 40. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a slide-type product take-out door device equipped at a product take-out port of a cup beverage vending machine.

The cup beverage vending machine that sells cups containing beverages prepared in the machine is equipped with an automatic opening and closing door device at the product outlet that leads to the bend stage from the hygiene and safety aspects of the beverage. During beverage preparation, hands are prevented from being inserted into the machine from the outside.
Specifically, the door plate is a sliding door plate, and a roller attached to the tip of an arm connected to the output shaft of the drive motor is linked to a driven rail attached to the door plate, and is rotated by forward and reverse control of the drive motor. Move the roller of the moving arm in the driven rail to move the door plate to the open and closed positions, and open the product outlet with the door plate closed when waiting for sales and during beverage preparation at the time of sale. When the prepared cup containing beverage is taken out to the bend stage of the product outlet, this cup is detected by an optical sensor, etc., and the drive motor is started based on the detection signal, and the door plate is moved to the product outlet. Move to the opening position. When the user inserts his hand through the product outlet and removes the beverage cup placed on the bend stage, the drive motor restarts (reverses), closes the door plate, and returns to the standby state for sale again. (For example, refer to Patent Document 1).

By the way, when the user takes out the cup containing beverage from the product outlet, if the user keeps his hand on the product outlet with the door plate open, the edge frame of the product outlet and the door plate when the door plate closes. There is a risk that the fingertip may be sandwiched between the two (so-called finger clogged state). Therefore, a conventional cup beverage vending machine incorporates a finger jamming detection mechanism that combines a finger jamming detection plate protruding from the edge on the back side of the door plate and a finger jamming detection switch using the detection plate as an actuator. When hands, fingers, etc. are caught between the door plate and the edge frame of the product outlet during the closing process, the drive motor is stopped after interrupting the closing operation of the door plate based on the operation signal of the finger plug detection switch. Is reversed to open the door and adopt a safety structure that allows the hand and fingers to be pulled out (see, for example, Patent Document 2).
JP 2002-298206 A JP-A-9-288762

  However, the product outlet door device with the above-described finger jamming detection mechanism has the following problems. In other words, if a hand, finger, etc. is caught between the edge frame of the product outlet and the door plate while the door plate of the product outlet is closing, the finger jamming detection mechanism works and the drive motor for opening and closing the door plate Since the driving force continues to work until the motor stops, the driving force of the driving motor continues to be applied to the door plate in the closing direction, and the pressing force is continuously applied to the sandwiched hand and fingers. Moreover, in order to attach the finger jamming detection mechanism to the door plate of the product outlet, parts such as a limit switch and an actuator are necessary, and the control system of the drive motor becomes complicated, which causes high costs.

  In view of the above circumstances, an object of the present invention is to provide a slide-type product outlet door device equipped at a product outlet of a cup beverage vending machine that secures safety against finger filling with a simple mechanism. .

In order to achieve the above-mentioned object, a product outlet door device for a vending machine according to claim 1 of the present invention opens and closes a door plate arranged at the product outlet with a drive motor and automatically opens and closes in accordance with the sales operation. In the vending machine product outlet door device,
A roller attached to the tip of an arm connected to the output shaft of the drive motor is linked to a driven rail attached to the door plate, and a roller that is rotated by forward and reverse control of the drive motor is slid in the driven rail. Moving the door plate to the open and closed positions,
It consists of a pair of clutch plates and a spring that holds the clutch plates engaged. When a predetermined load is applied, the springs are compressed and the clutch plates are separated to stop transmission of the driving force of the drive motor. One clutch plate of the power transmission means to be arranged on the output shaft side, and the other clutch plate on the arm side,
When a predetermined load is received during the movement of the door plate, the clutch plate of the power transmission means is separated to stop the transmission of the driving force from the drive motor to the arm, thereby stopping the movement of the door plate. It is characterized by that.

  According to a second aspect of the present invention, there is provided a commodity outlet door device for a vending machine according to the first aspect, further comprising a detecting means for detecting that the clutch plate of the power transmission means is separated. To do.

  According to the first aspect of the present invention, when a predetermined load is received during the movement of the door plate, the clutch plate of the power transmission means is separated to stop transmission of the driving force from the drive motor to the arm. By stopping the movement of the product, it is possible to provide a slide-type product outlet door device equipped at the product outlet of the cup beverage vending machine that secures the safety against finger filling with a simple mechanism.

  According to the second aspect of the present invention, the drive motor can be quickly stopped, so that it is possible to prevent the pressing force from being continuously applied to the pinched hands and fingers.

Exemplary embodiments of a product outlet door device for a vending machine according to the present invention will be described below in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.
FIG. 1 is an external view of a cup beverage vending machine provided with a product outlet door device according to an embodiment of the present invention.

  The cup beverage vending machine 1 exemplified here carries out a cup containing hot beverage or cold beverage prepared in the machine in accordance with the user's request after inserting coins to the bend stage of the product outlet and provides it to the user. In the machine, a cup supply device, a hot water tank, a raw material container, a coffee extractor, an ice making machine, a cooling water tank, and the like are provided. The front door 3 of the device housing 2 is provided with a product selection button 4 for the user to select a product and a product outlet 10 for providing the selected product. The product selection buttons 4 are provided corresponding to a plurality of product samples 6 displayed in the product display unit 5. Further, the front door 3 is provided with a coin insertion slot 7 for inserting coins, a coin return lever 8 for returning inserted coins, and a coin return slot 9 for returning coins. 10 is equipped with an automatic opening / closing door device, and the door plate 23 is used to block the opening of the edge frame 11 during standby for sale and during beverage preparation at the time of sale so that hands cannot be inserted into the machine from the outside. Yes. A bend stage for placing the cup is disposed on the inner bottom portion.

  FIG. 2 shows the door device 20 installed in the commodity outlet 10, wherein (a) is a perspective view from the front, and (b) is a right side view thereof. 3 is a configuration diagram of the door device 20, (a) is a rear view of the entire device showing a state in which the door plate 23 is closed, and (b) is an overall view of the device showing a state in which the door plate 23 is opened. It is a rear view. The door plate 23 arranged on the back surface of the unit base 21 is provided with roller mounting portions on the upper and lower door guide rails 21a and 21a via rollers 27, and on the rear surface of the unit base 21 and on the door guide rails 21b and 21b in the rear direction. 23a and the contact plate 25 are guided and supported so as to be slidable in the left and right opening and closing directions. The opening / closing mechanism of the door plate 23 has the following configuration. That is, the power transmission unit (power transmission means) 40 is disposed between the open position and the closed position with respect to the opening / closing movement path of the door plate 23, and the output shaft of the drive motor (motor with a reduction gear mechanism) 30. 31 (see FIG. 4), a clutch plate 41 and an output gear 44 attached via the clutch plate 42 and the teeth of the arm gear 32a mesh with each other, and a roller 33 attached to the tip of the arm 32 connected rotatably. The plate 23 is fitted in a channel-shaped driven rail 24 provided in the vertical direction (perpendicular to the moving direction of the door plate 23) on the back surface of the plate 23. Further, a stopper plate serving as a stop stopper for the arm 32 is provided at the lower end of the driven rail 24. 25 is provided, and the arm 32 is determined so that the arm 32 is turned sideways in the open position and the closed position of the door plate 23 in a substantially horizontal posture. of In which so as to rotate to an angle arm 32 is horizontal.

  With this configuration, the position at which the door plate 23 normally closes the opening 22 of the unit base 21 (the opening of the product outlet 10) (the position shown in FIG. 3A), including when the cup beverage vending machine is on standby. In this position, the arm 32 connected to the drive motor 30 via the output gear 44 stops at a position inclined slightly downward from the horizontal. By setting the stop position of the arm 32 in this way, for example, even when trying to forcefully open the door plate 23 by placing a hand on the door plate 23 from the outside during sales standby (the drive motor 30 is in a stopped state) Since the roller 33 attached to the tip of the arm 32 abuts against the contact plate 25 and prevents the arm 32 from rotating, the door plate 23 is not opened by an external force.

  Here, when the sales operation of the cup beverage vending machine is performed and the beverage cup is carried out from the inside of the machine to the bend stage of the product outlet 10, the drive motor 30 is started and the arm 32 is connected via the output gear 44. Is rotated approximately 180 ° clockwise from the position shown in FIG. As a result, the direction of the arm 32 is reversed, and the door plate 23 moves from the closed position toward the open position shown in FIG. 3B via the driven rail 24 linked to the arm 32. And if it rotates to the position where the direction of the arm 32 reverses, the door board 23 will reach | attain an open position and will open the goods extraction port 10. FIG. The drive motor 30 is controlled to stop by a detection signal output by detecting and detecting the detection plate 34 of the arm 32 by a door opening detection sensor and a door closing detection sensor (not shown) provided in the door opening / closing path. When the cup with beverage is taken out through the product outlet 10, the door plate 23 is moved from the open position shown in FIG. 3B to the position shown in FIG. The product take-out port 10 is closed by sliding toward the closed position shown in FIG. In this closing operation process, when the stop command is given to the drive motor 30 when the arm 32 is rotated to the position of the horizontal orientation, the drive motor 30 overruns until it completely stops, and the arm 32 slightly changes the horizontal position. When exceeding, the roller 33 hits the contact plate 25 and stops at the position of the downward inclined posture.

Next, when closing the door plate 23 of the product outlet door device of the vending machine according to the present invention, a foreign object is caught between the edge frame 11 of the product outlet 10 and the door plate 23 leading to the bend stage, and the door plate 23 is closed. The operation when there is no state (so-called finger clogging state) will be described with reference to FIGS.
FIG. 4 shows a power transmission unit (power transmission means) 40, and the output gear 44 is cross-sectionally described in detail. The power transmission unit 40 includes a drive motor 30, a clutch plate 41, a clutch plate 42, a spring 43, an output gear 44, and an output shaft 45. The clutch plate 41 is fixed to the output shaft 31 of the drive motor and is connected to the output shaft 31. The output gear 44 is slidably mounted on the output shaft 45 of the clutch plate 42 so as to be slidable (vertical direction in FIG. 4), and is mounted to rotate in synchronization with the clutch plate 42. Further, the clutch plates 41 and 42 have a shape in which the inclined surfaces 41a and 42a are in close contact with each other, and are normally engaged with the inclined surface 41a of the clutch plate 41 by the repulsive force of the spring 43 as shown in FIG. The inclined surfaces 42a of the plate 42 are held in close contact with each other, and the driving force of the driving motor 30 is transmitted to the output gear 44. In this state, the microswitch 46 is in the OFF state. When the drive motor 30 is started, the arm 32 is rotated clockwise and counterclockwise via the arm gear 32a meshed with the output gear 44, and the door plate 23 is opened and closed to move to the open position and the closed position. . Whether the door plate 23 is moved to the open position or the closed position is controlled by a detection signal output by detecting a detection plate 34 provided on the arm 32 by a door close detection sensor and a door open detection sensor (not shown). Is done.

When the product selection button 4 (see FIG. 1) of the cup beverage vending machine is pressed and the beverage-containing cup prepared in the machine is carried out to the product outlet 10, the drive motor 30 is started and the door plate 23 is started. Move to the open position. When the cup with beverage is taken out from the product outlet, the drive motor 30 is started in the reverse rotation direction to move the door plate 23 in the closed position direction.
When the door plate 23 is moved in the closed position direction and an external force is applied to stop the door plate 23 (so-called “fingered state”), the rotation of the arm 32 is stopped, and the clutch is made via the arm gear 32 a and the output gear 44. The rotation of the plate 42 stops. When the rotation of the clutch plate 42 is stopped, the rotation direction of the output shaft 31 of the drive motor 30 and the output gear 44 is reversed. At this time, the inclined surface 42a of the clutch plate 42 that has stopped rotating and the inclined surface 41a of the rotating clutch plate 41 slide in the rotating direction, and the clutch plate 42 is in the direction of the arrow shown in FIG. 4B. The spring 43 is compressed and the output shaft 45 slides with the output gear 44. When the clutch plate 41 slides in the rotational direction with the clutch plate 42 in this manner, transmission of power from the output shaft 31 of the drive motor 30 to the output gear 44 is stopped. At that time, the output shaft 45 of the clutch plate 42 is pushed up to turn on the micro switch 46, and an ON signal is output to detect that an overload is applied to the door plate 23 (finger clogged state). When an overload is detected, the drive motor 30 is driven to rotate in the opening position direction of the door plate 23 and is operated until the micro switch 46 is turned OFF and the door open detection sensor is turned ON to open the door plate 23. Return to position.

And the operation | movement which moves the door plate 23 to a closed position direction again is performed. When the movement operation of the door plate 23 to the closed position again is completed, the sales standby state is set. However, if a finger jam occurs when the operation of moving the door plate 23 again in the closed position direction is performed, the door plate 23 is moved in the open position direction to stop the sale of the cup beverage.
As described above, the clutch plates 41 and 42 and the springs 43 that hold the clutch plates 41 and 42 are engaged. When a predetermined load is applied, the springs 43 are compressed to cause the clutch plates 41 and 42 to move. One clutch plate 41 of the power transmission unit 40 that is separated and stops transmission of the driving force of the drive motor 30 is disposed on the output shaft 31 side, and the other clutch plate 42 is disposed on the arm 32 side. When a predetermined load is sometimes received, the clutch plates 41 and 42 of the power transmission unit 40 are separated to stop transmission of the driving force from the drive motor 30 to the arm 32, thereby stopping the movement of the door plate 23. Can prevent the reduction gear of the drive motor 30 from being damaged, and is equipped with a sliding mechanism equipped at the product outlet of a cup beverage vending machine that secures safety against finger filling with a simple mechanism. It becomes possible to provide the goods outlet door apparatus.

  Further, since the drive motor 30 can be quickly stopped by providing the micro switch 46 that detects that the clutch plates 41 and 42 of the power transmission unit 40 are separated, the pressing force is applied to the pinched hands and fingers. It is possible to prevent the product from continuing to be applied.

It is the external view which showed the cup drink vending machine provided with the goods outlet door apparatus which is embodiment of this invention. It is the door apparatus equipped in the goods outlet which is embodiment of this invention. It is a conceptual diagram which shows the opening / closing operation | movement of the goods outlet door apparatus shown in FIG. It is a conceptual diagram which shows the power transmission part of the goods outlet door apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cup drink vending machine 10 Product outlet 20 Door apparatus 21 Unit base 22 Opening 23 Door plate 27 Roller 30 Drive motor 31 Output shaft 32 Arm 32a Arm gear 33 Roller 40 Power transmission part 41 Clutch plate 41a Inclined surface 42 Clutch plate 42a Inclined surface 43 Spring 44 Output gear 45 Output shaft 46 Micro switch

Claims (2)

In the product outlet door device of the vending machine that opens and closes the door plate arranged at the product outlet with a drive motor and automatically opens and closes according to the sales operation,
A roller attached to the tip of an arm connected to the output shaft of the drive motor is linked to a driven rail attached to the door plate, and a roller that is rotated by forward and reverse control of the drive motor is slid in the driven rail. Moving the door plate to the open and closed positions,
It consists of a pair of clutch plates and a spring that holds the clutch plates engaged. When a predetermined load is applied, the springs are compressed and the clutch plates are separated to stop transmission of the driving force of the drive motor. One clutch plate of the power transmission means to be arranged on the output shaft side, and the other clutch plate on the arm side,
When a predetermined load is received during the movement of the door plate, the clutch plate of the power transmission means is separated to stop the transmission of the driving force from the drive motor to the arm, thereby stopping the movement of the door plate. A product outlet door device for a vending machine.   2. A product outlet door device for a vending machine according to claim 1, further comprising detecting means for detecting that the clutch plate of said power transmission means is separated.

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