JPS6225820Y2 - - Google Patents

Description

[Detailed Description of the Invention] (A) Field of Industrial Application The present invention relates to a vending machine in which drive motors provided for each type of product or coin are controlled by a single switch.

(B) Prior Art Generally, a vending machine that sells products by motor drive, as shown in Utility Model Publication No. 50-2063, has a plurality of product storage cylinders arranged in parallel in which products are stacked, and a product delivery mechanism is provided at the bottom of each product storage cylinder.
The system is configured such that the operation of the product selection switch drives the corresponding vending drive motor to deliver the product at the bottom of the product storage cylinder. To control the drive of the vending drive motor, a switch is provided that switches in response to the delivery of a product, and in the standby state, this switch is set to the OFF state, enabling the drive of the vending drive motor. The switch is turned ON by the drive of the vending drive motor, and when the switch returns to the OFF state after the product has been delivered, the vending drive motor is stopped.

(c) Problems to be solved by the invention However, according to the above-mentioned conventional technology, if the power is cut off while the control switch is on due to a certain vending drive motor, the control switch will not be activated the next time the power is restored. Since this was on, the sales drive motor could not be driven, and the product in the product storage tube could no longer be sold. Moreover, in a vending machine that is configured with a common control switch for each product storage cylinder, in such a case, all vending drive motors cannot be driven, and the vending machine is discontinued, which has a great negative impact on sales. This will affect the And this kind of situation can be caused by turning on the power as a prank.
This could easily occur by turning off the machine, and the vending machine manager had to manually reset the machine each time.

In view of the above, the present invention provides an initial setting device that, if the control switch is in the operating state when the power is restored, can restart the sales drive motor whose drive has been interrupted and return the control switch to the standby state. be.

(d) Means for solving the problem To explain the configuration of the present invention with reference to drawings showing an embodiment, when a drive command is generated while the control switch is in a standby state, the drive motors M ₁ , M ₂ , _etc. are driven. However, a storage section 13 is provided to store the drive command at this time. The storage unit 13 is configured to be reset when the control switch 11 which has been switched to the operating state is switched back to the standby state upon delivery of the article and the drive motor is stopped. The storage unit 13 is backed up by a battery 14 when the power is cut off, so that when the power is restored, the drive motors M ₁ , M ₂ , . . . _Mo are driven by the drive commands stored in the storage unit 13.

(E) Effect When the power is cut off while the control switch 11 is in the operating state, the drive motors M ₁ , M ₂ , _. . . When the power is restored, the drive motors M ₁ , M ₂ . . . M _o are driven by the drive commands held in the storage unit 13,
When the control switch enters the standby state due to the drive, the drive motor stops and the storage section 13 is reset to return to its initial state.

(F) Example In Fig. 1, 1 is the vending machine main body, 2 is a product storage cylinder supported on rails 4 provided on a base 3 so that it can be inserted and removed in the front and rear directions, and at the lower end of the cylinder are support parts 5, 5 that support the lowest product, which are provided separately on the left and right, and have a delivery opening 6 that opens to the front and is necessary for one product to be delivered forward by sliding on the support parts 5, 5.
As shown in Fig. 2, the machine is equipped with a movable platform 8 which performs a reciprocating motion forward and backward by the drive of a motor (not shown), and a product pushing-out piece 7a, and the movable platform 8 is placed on rails 9 provided on the left and right sides of the base 3. Reference numeral 10 denotes a stopper, as shown in Fig. 3, which faces the delivery outlet 6 and is pivotally supported 16 on the left and right sides of the side walls of the main body 1 so as to be rotatable across close to the front wall of each storage cylinder 2. In the normal state, the stopper 10 is in position A in Fig. 2 so as to narrow the delivery outlet 6 by its own weight, and at the time of sale, it is urged by the delivered product to rotate to position B in Fig. 2. Reference numeral 11 denotes a control switch which turns ON/OFF in conjunction with the rotation of the stopper 10, and when the stopper 10 is in position A, the control switch 11 is
It is OFF and the product is pushed to the stopper 1
When the stopper 10 swings, the control switch 11 is turned ON, and when the product is delivered from the delivery opening 6 and the stopper 10 returns to its original position, the control switch 11 is turned OFF. In this manner, in this embodiment, one control switch 11 is shared by each product delivery mechanism 7.

FIG. 4 is a block diagram showing _the control circuit according to the present invention, in which the selection signals S ₁ , S _{2 .} M ₂ ...This is a drive command to M _o . 12 is a motor control section, and control switch 1
When selection signals S ₁ , S ₂ . . . S ₁ arrive in the OFF _state , a control signal is output through OR gates _{18 1} , _{18 2 .} control switch 11, which is turned on at the start of driving.
When the is turned OFF again, the sales drive motor _M1・_M2 ...M _o
to stop. In addition, 13 is a selection signal S ₁ , S ₂ ...S _o
At the same time, the sales drive motor M ₁・M ₂ ...M _o
The storage section is reset by a reset signal output from the motor control section 12 when the drive of the motor is stopped, and the memory is retained by the battery 14 when the power is cut off. 16 is a power-on detection circuit, which is equipped with an integrating circuit and outputs an output pulse when the output voltage of the integrating circuit, which gradually rises after the power is turned on, reaches a predetermined level.
The AND gates 17 ₁ , 17 _{2 . . . 17 o output} the selection signals S ₁ , S _{2 . .} . stored in the storage unit 14 upon arrival of this output pulse. S _o is output to the initial set section 15. The initial set section 15 includes an AND gate 17 ₁ ,
When selection signals _S1 , _S2 ... _S0 are introduced from ₁₇₂ ... _17o , control signals are outputted through OR gates ₁₈₁ , ₁₈₂ ... _18o until the control switch 11 is turned OFF to control the sales drive motor. _M1・_M2 ...Moves M _o .

In the above configuration, any selection signal S ₁ , S ₂ ...S _o
When this occurs, the motor control section 12 turns the corresponding sales drive motor _M1 on the condition that the control switch 11 is turned off.
_M2 ... _Mo is driven to operate the product delivery mechanism 7 of the product storage tube 2 containing the selected product. When the product is delivered, the stopper 10 rotates and the control switch 11 is turned on. When the product is delivered and the stopper 10 returns to the state shown in FIG. 2B, the control switch 11 is turned on.
OFF, and the motor control unit 12 turns off the sales drive motor.
_M1・_M2 ...Stop M _o . Also, the motor control section 1
2 outputs a reset signal to the storage unit 13 by stopping the driving of the sales drive motors M ₁ , M ₂ , . . . M _o to stop one sales operation. However, control switch 1
If the power is cut off while M1 is ON, the sales drive modes _M1 , _M2 ...M _o will stop, but the storage unit 13
is the selection signal _S1・_S2 ...S _o generated in the relevant sales operation
is held in the backup of the battery 14. Therefore, when an output pulse is generated from the power- _on detection circuit 16 after the power is restored, the selection signals _{S 1} , _{S 2 .} The sales drive motors _M1 , _{M2 ,} . Therefore, when the control switch 11 returns to OFF, the initial setting section 15 stops the sales drive motors M ₁ , M _{2 ,} . . . M _o that are being driven. Then, when the control switch 11 is turned off, the motor control section 12 outputs a reset signal to the storage section 13 and returns to the sales standby state. The present invention can also be applied to change pipes arranged in parallel for each denomination, and as a modification, the control switch may be configured with a pulse switch or cam switch that turns on and off in conjunction with the drive motor.

(g) Effects of the invention According to the invention, even if the power is turned on while the control switch remains in the operating state, the drive of the drive motor whose drive was interrupted is automatically restarted, and the control switch returns to the standby state. Therefore, even if the next drive command is received, the drive motor can be operated reliably and the vending operation will not be hindered.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the door opening state of a vending machine to which the present invention is applied, Fig. 2 is a diagram showing the operating state of the product delivery mechanism, Fig. 3 is a diagram showing the relationship between the product storage cylinder and the stopper, and Fig. 4 is a control circuit diagram. 11...Control switch, 12...Motor control section, 13...Storage section, 14...Battery, 15...
...Initial set section.

Claims (1)

[Scope of utility model registration request] A motor control unit that drives the drive motor to perform an article ejecting operation when a drive command is generated when the control switch is in a standby state, and stops the drive motor when the control switch that has been switched to the operating state returns to the standby state. a storage unit that stores the drive command and is reset when the control switch returns from the operating state to the standby state; a battery that retains the memory in the storage unit when the power is turned off; An initial setting device for a drive motor in a vending machine, comprising an initial setting section that operates the drive motor based on the drive command stored in a storage section until the control switch in the operating state returns to the standby state.