JPH09231464A - Commodity carrying-out device for automatic vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To successively carry out commodities piled to be two front/rear stage with a simple mechanism surely by setting the frequency of feeding in by a ratchet during one rotation of the endless material of a feeding-in means operated synchronizing with a feeding-out means to be a half of the frequency of throwing operation by means of the ratchet during one rotation of the endless material if the feeding out means. SOLUTION: A feeding out pawl 30 and a ratchet 40 are respectively provided for the rotate-driven endless material 31. Thereby, there is no need to change a posture to the endless material 31 even at the time of moving back. In addition, the feeding in frequency by the ratchet 40 during the one rotation of the endless material 31 by the feeding-in means operated synchronizing with the feeding-out means is set to be a half of the frequency of carrying out operation by the feeding-out pawl during one rotation of the endless material 31 of the feeding-out means. Thereby, there is no need to posture-control the ratchet 41 at the time of carrying out the commodity fed into the front line and carrying out of the commodity at the front line and that at a rear line are alternately executed in order in spite of being a simple mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a product dispenser for a vending machine, which dispenses the products at the bottom one by one from a state of being stacked in a row.

[0002]

2. Description of the Related Art In some vending machines, box-shaped products are stored in front and rear rows. In this product, when the products are released one by one, first the products in the bottom row of the front row are sent out, and at the same time, the products located in the bottom row of the back row are sent to the front row side and the next product is released. By repeating the operation of throwing out the merchandise that has been moved to the front row, the merchandise in the front and rear two rows is ejected.

An example of this type of product dispensing device disclosed in Japanese Patent Laid-Open No. 7-296244 is shown in FIG. Below the storage unit 1 in which the box-shaped products A are stacked and stored in front and rear two rows, a push-out pusher 91 and a push-in pusher 92 are arranged. Of these pushers 91, 92 which are reciprocally driven back and forth (left and right in the figure) by a traverse cam (not shown), the front pusher 91 sends out the product A located at the bottom of the front row and ejects it. The pusher 92 on the rear side is used for sending out the product A located at the lowermost stage in the rear row to the front row side.

Since the replenishment of the merchandise A is performed from above, when the ejection of the merchandise A in the lowermost row in the front row is completed, the merchandise A in the lowermost row in the rear row has been positioned until then, the merchandise A in the lowermost row in the front row. The product A, which has been sent to the front row, is sent to the next row by the pusher 91, and the articles in the front row and the back row are sequentially sent out.

That is, when the products stacked in the front row are A1, A3, A5 ... In the bottom row and the products stacked in the back row are A2, A4, A6 ... In the bottom row, as shown in FIG. In addition, the pusher 91 and 92 simultaneously advance the product A1.
When the product A2 is ejected and the product A2 is moved to the front row side, the pushers 91 and 92 move backward as shown in FIG. 9 to prepare for the next product ejection, and when the next product A2 is ejected, as shown in FIG. As shown, the pushers 91 and 92 move forward at the same time, but the pusher 91 only pushes out the product A2,
The pusher 92 does not send in the product A4 and only ejects the product A2.
When 2 is retracted as shown in FIG. 11, the product A3 is located at the bottom of the front row and the product A4 is located at the bottom of the rear row. When a product output command is further input, the product A3 and then the product A4 are output. To do.

[0006]

When a product is to be dispensed by using such a pusher 91 for dispensing and a pusher 92 for feeding to the front row, first, these pushers 9 are used.
1,92 must be made with its posture changed so that its retreat does not interfere with the product. Further, when the product which is initially located in the lowermost row of the rear row is thrown out, as shown in FIG. 10, the posture of the pusher 92 must be changed so that the pusher 92 does not send the product on the rear row side to the front row side. Don't That is, it is necessary to control the postures of the pushers 91 and 92, and
Since it is not merely a matter of changing the posture when retreating, the structure for the posture control is considerably complicated, and there are many problems in terms of cost and operational reliability.

The present invention has been made in view of the above points, and an object thereof is to reliably eject products stacked in front and rear two rows from a lower stage side with a simple mechanism. An object is to provide a product dispensing device for a vending machine.

[0008]

According to the present invention, among the products stacked in the front and rear two rows, the product located in the lowermost row in the front row is thrown out, and then the product located in the lowermost row in the rear row is thrown out. In the product dispenser for a vending machine, a delivery means for delivering a product located at the lowest stage in the front row, which is formed of an endless material that is rotationally driven and a delivery pawl provided on the endless material, is rotationally driven. An endless material and a feed claw provided on the endless material are provided, and a feeding means for feeding the product located at the lowermost stage of the rear row to the front row side during the ejection of the product at the lowermost row of the front row by the delivering means, The number of times the endless material of the feeding means, which operates in synchronization with the feeding means, is fed by the feeding pawl during one rotation of the feeding means is half the number of times the endless material of the feeding means is ejected by the feeding pawl during one rotation. With features To have. Since the feeding claw and the feeding claw are provided on the endless material that is driven to rotate respectively, the posture with respect to the endless material does not need to be changed even when retreating. Since it is half the number of times, it is not necessary to control the attitude of the feed claws when the product fed into the front row is ejected.

The endless material may be a belt or a chain. The difference in the number of times can be easily obtained by providing the endless material in the feeding means with two feeding claws and the endless material in the feeding means with one feeding claw. Further, it is preferable that the endless material of the feeding means is provided with a push-up claw on the rear side of the feed claw over substantially half the circumference of the endless material in order to easily secure an operating space for the feed claw.

If the rear pulley for the endless material of the feeding means and the front pulley for the endless material of the feeding means rotate coaxially and integrally, the number of parts can be reduced and the two endless materials can be synchronized. It is advantageous for driving. Furthermore, the endless material of the feeding means and the endless material of the feeding means have the same length,
If the number of teeth of the pulleys for each endless member is the same, it is possible to share the parts between the feeding means and the feeding means.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 30 in FIG. 1 is a feed-out pawl for ejecting a product located at the bottom of the front row, and is an endless material such as a timing belt or chain spanned between pulleys 33 and 34. Two pieces are provided on the outer peripheral surface of 31 at intervals of half a circumference. In the figure, 40 is a feed claw that feeds the product located at the bottom of the rear row to the front row side, and one is provided on the outer peripheral surface of the endless material 41 such as a timing belt or chain that is bridged between the pulleys 43 and 44. There is. A plurality of push-up claws 42 are provided on the outer circumference of the endless material 41 and on the rear side of the feed claw 40. The feed claw 40 and the plurality of push-up claws 42 are provided so as to occupy approximately half the circumference of the endless material 41.

Further, the rear pulley 34 for the endless material 31 having the feeding claw 30 is provided at the same position in the front-rear direction as the front pulley 43 for the endless material 41 having the feeding claw 40, Along with this, the endless material 31 and the endless material 41 are provided at axially displaced positions, as shown in FIGS. 2 and 3. In the figure, 5 is a motor that is a power source, and the output of the motor 5 passes through the reduction gear train 50 and the pulley 33.
And the endless material 31 is rotationally driven. Endless material 41
The pulley 34 and the pulley 43 are fixed to the same shaft to receive power from the endless material 31. It should be noted that the motor 5 operates upon receiving the ejection command, and the feeding claw 3
It stops at the output of the position detection switch 6 driven by 0. In the figure, 7 is a sold-out detection switch.

Further, the pulleys 33, 34, 43, 4
No. 4 has the same number of teeth, the endless material 31 and the endless material 41 have the same length, the pulleys 34 and 43 are supported by the same shaft, and the endless material 41 from the motor 5 is supported.
Including the fact that the power transmission to the side is performed by using the endless material 31 in the sending means, the number of parts and the cost are reduced.

Next, the operation will be described. FIG. 4 (a) shows the first standby state, in which the delivery claw 30 is placed behind the product A1 at the bottom of the front row, and the product A at the bottom of the rear row.
The feed claw 40 is reserved on the rear side of 2. If the ejection command is input in this state, the endless materials 31, 41 are rotationally driven,
As shown in FIG. 4 (b), the product A1 at the bottom of the front row is thrown out, and as shown in FIG. 5, the product A2 at the bottom of the rear row is sent to the front row side. And product A1
The feed claw 30 that has thrown out the state enters the second standby state in the state shown in FIG. In this state, the other delivery claw 30 is reserved behind the product A2 fed to the front row, but the products A4, A6 ... In the rear row are placed on the push-up claw 42.

The endless materials 31 and 4 containing the following command for product ejection
When 1 starts to rotate, as shown in FIG. 6B, the delivery claw 30 ejects the product A2. Endless material 4
The plurality of push-up claws 42 provided on the No. 1 are the products A4 and A.
The product A4 in the lowermost row in the rear row remains on the push-up claws 42 only after passing under 6 ... When the delivery claw 30 that has ejected A1 passes through the space secured by the push-up claw 42 below the product A4 as shown in FIG. 7, and enters the first standby state shown in FIG. 4 (a),
After all the push-up claws 42 have passed through the space below the products A4, A6 ..., The product A4 is located at the bottom of the rear row. By repeating the above operation, the product is dispensed.

It is only necessary to drive the endless members 31 and 42 to rotate, and these endless members 31 and 41 may be operated at a constant speed until the position detecting switch 6 is operated by the feeding claw 30. Moreover, although the feeding claw 30, the feeding claw 40, or the pushing-up claw 42 does not change the posture with respect to the endless materials 31 and 41 at all, the products in the front row and the products in the rear row are alternately ejected.

[0017]

As described above, in the present invention, since the feeding claw and the feeding claw are respectively provided on the endless members which are rotationally driven, the posture with respect to the endless member does not have to be changed even when retreating. The number of feeding operations of the endless material of the feeding means that operates in synchronization with the feeding means by the feeding claw during one rotation is half the number of times of the ejection operation of the endless material of the feeding means by the feeding claw during one rotation. , It is not necessary to control the attitude of the feed claws when the products sent to the front row are dispensed, and it is a simple mechanism that simply rotates the endless material, but the products of the front row and the products of the back row are alternately dispensed. It can be done in order.

The above difference in the number of times can be obtained extremely easily by providing two feeding claws on the endless material in the feeding means and one feeding claw on the endless material in the feeding means. If the endless material of the feeding means is provided with a pushing-up claw on the rear side of the feeding claw over almost half the circumference of the endless material, an operation space for the feeding claw can be easily secured on the back side of the product at the bottom of the front row. In addition to this, the product can be prevented from being damaged by the delivery claw and throwing error.

If the rear pulley for the endless material of the feeding means and the front pulley for the endless material of the feeding means rotate coaxially and integrally, the number of parts can be reduced and the two endless materials can be synchronized. It is advantageous for driving. Further, if the endless material of the feeding means and the endless material of the feeding means have the same length and the pulleys for each endless material have the same number of teeth, it is possible to share the parts between the feeding means and the feeding means. It is advantageous in cost reduction.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an example of an embodiment of the present invention.

FIG. 2 is a cutaway plan view of the same.

FIG. 3 is a transverse sectional view of the above.

4 (a) and 4 (b) are explanatory views of a dispensing operation of a lower row front row product.

5 (a) and 5 (b) are explanatory views of a feeding operation of a lower row rear row product to a front row.

6 (a) and 6 (b) are explanatory views of the dispensing operation of the product initially located in the rear row.

7 (a) and 7 (b) are explanatory views of the operation from the completion of the ejection operation to the shift to the standby state.

8 (a), (b) and (c) are explanatory views of a dispensing operation of a front row lower stage product in a conventional example.

9A and 9B are explanatory diagrams of a return operation.

10 (a), (b), and (c) are explanatory views of the dispensing operation of the product initially located in the rear row.

11 (a) and 11 (b) are explanatory views of a return operation.

[Explanation of symbols]

 30 Feeding Claw 31 Endless Material 40 Feeding Claw 41 Endless Material 42 Push-up Claw

Claims (7)

[Claims] 1. A product dispenser for a vending machine, which dispenses a product located at the bottom of the front row out of the products stacked in two rows in the front and rear, and then a product located at the bottom of the rear row. There is a feeding means for ejecting the product located at the bottom of the front row, which is formed from an endless material that is driven to rotate and a delivery claw provided to this endless material, and an endless material that is driven to rotate and provided to this endless material. And feeding means for feeding the products located at the bottom of the rear row to the front row side while the products at the bottom of the front row are being dispensed by the above-mentioned delivery means and operate in synchronization with the delivery means. The vending machine product characterized in that the number of times of feeding the endless material of the feeding means by the feeding pawl during one rotation is half the number of times of the ejection operation by the feeding pawl during one rotation of the endless material of the feeding means. Ejection device. 2. The product dispensing device for a vending machine according to claim 1, wherein the endless material is a belt. 3. The product dispensing device for a vending machine according to claim 1, wherein the endless material is a chain. 4. The vending machine according to claim 1, wherein the endless material of the sending-out means has two feeding claws, and the endless material of the sending-in means has one feeding claw. Product ejection device. 5. The product dispensing device for a vending machine according to claim 1, wherein the endless material of the feeding means is provided with a push-up claw on the rear side of the feed claw over substantially half the circumference of the endless material. . 6. The rear pulley for the endless material of the feeding means and the front pulley for the endless material of the feeding means are coaxial and integrally rotated. Product dispenser for vending machines. 7. The vending machine according to claim 1, wherein the endless material of the feeding means and the endless material of the feeding means have the same length, and the pulleys for each endless material have the same number of teeth. Product dispensing device.