JPH0115916B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a product dispensing device for a spiral type vending machine arranged vertically.

(B) Conventional technology Conventionally, this type of product delivery device has a drive shaft with a spiral member wrapped inside a product storage column that has an opening for loading products on the front and an outlet for delivering products on the bottom. It is generally known that the product is placed in the vertical direction, the product is inserted and supported from the front opening into the gap between the spiral members, and the product is moved downward by a predetermined rotation of the drive shaft and delivered from the lower end of the spiral member through the delivery port. For example, Utility Model 57-137079
The publication number is shown.

(C) Problems to be Solved by the Invention The spiral type product delivery device having such a configuration has a structure in which the product is inserted and supported in the gap formed between the helical sides of the helical spiral member. is housed and supported in the gap between the spiral members in an inclined state so that one end is directed downward toward the outlet. Further, since the spiral member is formed of a wire-like member and the gap interval is wider than the thickness of the product, the product can move very freely within the gap. That is, since the spiral member is uniquely formed in a spiral shape, the gap is narrow on the drive shaft side and widens outward from the drive shaft side. Therefore, since the distance between the helical sides must be made sufficiently larger than the thickness of the product, the stored product has a large degree of freedom within the gap, and this degree of freedom tends to increase as the product to be stored becomes larger. It is in. If this degree of freedom is large, there is a drawback that the product stored and supported in the lowest gap is easily pulled out of the delivery port, and may fall due to vibration or the like and be delivered incorrectly. Therefore, it is not possible to store and sell large products using a spiral type product delivery device, and the sale of large products requires the use of a complicated and expensive chain elevator type product delivery device.

In view of the above, the present invention provides a device that can reliably prevent tampering even with large products and can reliably deliver the products.

(d) Means for Solving the Problems The present invention arranges a drive shaft wrapped with a spiral member in the vertical direction in a product storage column, inserts and supports the product into the gap between the spiral members, and moves the drive shaft to a predetermined position. A support member that is fixed to the drive shaft at a lower position of the spiral member and protrudes in a substantially fan shape in a device that moves the product downward by rotation and sends it out from the lower end of the spiral member through the delivery port; One end close to the drive shaft is rotatably supported on the upper side of the support member, and when the support member comes into contact with the lower surface, it is supported substantially horizontally and closes the delivery port, and when the support member is separated from the lower surface, the downward movement occurs. A closing plate that can be rotated to open the outlet, a spring that urges the closing plate to return upward, and a locking plate that is rotated and returned to a substantially horizontal position due to the bias of the spring. a stopper, the terminal end position of the spiral member is located above a substantially central portion of the support member,
and the vertical distance between the terminal end and the closing plate in a substantially horizontal state is formed to be smaller than the thickness of the product,
The latter half of the support member is positioned on the lower surface of the closing plate during product delivery standby.

(e) Effect The present invention having such a structure positions the rear half of the support member on the lower surface of the closure plate during product delivery standby, and supports the closure plate on which the product is placed substantially horizontally by the support member. and the terminal end of the spiral member is located above the central portion of the support member that is detached from the closure plate. When the drive shaft rotates a predetermined amount during delivery of the product, the support member releases the support of the blocking plate, so the blocking plate rotates downward due to the product load and sends out the product. It is rotated back upward by the force. The closing plate that has returned to rotation is locked in a substantially horizontal state by the stopper, and is prevented from rotating upward beyond a predetermined level. Then, when the support member advances below the closure plate again and can be supported, the spirally supported product is released from support from the terminal end.
It acts so that the products are dropped and placed on the closing plates located at intervals smaller than the thickness of the products.

(F) Embodiment The drawing shows a product dispensing device according to an embodiment of the present invention, in which 1 is a roughly box-shaped product storage column provided inside the vending machine body, and has an opening 2 on the front for loading products. At the same time, the lower surface is provided with a delivery port 3 for dropping and delivering the product. Inside this product storage column 1, the upper end is connected to a drive motor 4, and the lower end is connected to the front and rear walls 1 of the product storage column 1.
A drive shaft 6 supported by a bearing member 5 installed between A and 1B is arranged in the vertical direction. A spiral member 8 formed in a helical shape is wound around the drive shaft 6 via a mounting member 7, and a gap 9 between the spiral members 8 formed on both sides of the drive shaft 6 is inserted through the opening 2 on the front surface. It is designed to accommodate and support the inserted product A. Reference numeral 10 denotes a support member fixed to the drive shaft 6 at a position below the spiral member 8. The support member 10 has a fan-like shape projecting approximately 120 degrees from the drive shaft 6 side, and is located at the terminal end 8A of the spiral member 8. The center portion 10A of the support member 10 is positioned below. 11
The one end close to the drive shaft 6 side is connected to the front and rear walls 1A, 1B.
It is a blocking plate that is rotatably supported on a shaft 12 installed between the two and can open and close the delivery port 3, and is urged to rotate upward by the elasticity of a spring 13, and is abutted and locked by a stopper 14 to stop the delivery. It is held substantially horizontally so as to close the outlet 3. This closing plate 11 is rotated downward by the load of the product A to open the outlet 3, but the supporting member 10 extends into the outlet 3 and the closing plate 1
1, the closing plate 11 is prevented from rotating downward by the supporting member 10 and is supported in a substantially horizontal state. In addition, the vertical distance B between the closing plate 11 in a substantially horizontal state and the terminal end 8A of the spiral member 8 is formed to be smaller than the thickness C of the product A, thereby reducing the impact of falling from the spiral member 8 to the closing plate 11. There is. Reference numeral 15 denotes a regulating member that prevents the product A supported on the blocking plate 11 from coming to the side of the shaft 12 that supports the blocking plate 11, thereby preventing the product from clogging. It is set up across the street. A control cam 16 is provided to rotate with the rotation of the drive shaft 6. As shown in FIGS. 1 to 3, the support member 10 is located in front of the drive shaft 6, and the control cam Bottom surface 11
The control switch 17 is operated at a position corresponding to A to stop the drive motor 4.

Next, the operation of the above configuration will be explained. 1 to 3 show the product delivery standby state, and the product A is in each gap 9 of the spiral member 8 and in the closing plate 1.
It is stored on 1. When the product delivery command is sent to the drive motor 4, the drive motor 4 rotates the drive shaft 6 in the direction of the arrow shown in FIG. Therefore, the products A stored in each gap 9 are gradually transferred downward. On the other hand, the support member 10 starts to separate from the lower surface 11A of the closing plate 11 due to the rotation of the drive shaft 6. Then, as shown in FIG.
When the occluding plate 11 is separated from the lower surface 11A of the occluding plate 11, the occluding plate 11 is no longer supported by the support member 10, and the product A
The product A is rotated downward by the load to open the delivery port 3, and the product A is delivered falling. After the product A is delivered, the closing plate 11 immediately rotates upward due to the elasticity of the spring 13, comes into contact with the stopper 14, and returns to the horizontal state. During this time, the support member 10
It is located on the opposite side from the outlet 3 with the two in between. Then, when the drive shaft 6 further rotates, the rotating tip of the support member 10 moves forward to correspond to the lower surface 11A of the closing plate 11 which has returned to the horizontal state, and the closing plate 11 becomes in a state where it can be supported. Due to the rotation of the drive shaft 6 after this supportable state, the product A stored in the lowest gap 9 of the spiral member 8 separates from the terminal end 8A of the spiral member 8 and falls onto the closing plate 11. Ru.
Therefore, the closing plate 11 rotates slightly downward, but the lower surface 11A is supported by the supporting member 10 and maintained in a horizontal state. and spiral member 8
When the terminal end 8A of the motor moves away from the closing plate 11 and reaches the state shown in FIG. 3, the control cam 16 operates the control switch 17 to stop the drive motor 4 and return to the standby state.

(g) Effects of the Invention Since the present invention is configured as described above, even in the case of large products where the degree of freedom of the product within the gap between the spiral members is large, mischief such as unauthorized removal of the product can be prevented. It is possible to prevent this from happening and to ensure reliable product delivery. Further, by reducing the amount of product falling from the spiral onto the closing plate, the product is prevented from being deformed or damaged.

[Brief explanation of drawings]

The drawings show a product delivery device according to an embodiment of the present invention, in which Fig. 1 is a front view in a standby state, Fig. 2 is an enlarged front cross-sectional view of similar main parts, and Fig. 3 is an enlarged front sectional view of similar main parts. FIG. 4 is an enlarged front sectional view of the main part during the product delivery operation. 3... Delivery port, 6... Drive shaft, 8... Spiral member, 8A... Terminal portion, 10... Support member, 1
1...Occlusion plate.

Claims (1)

[Claims] 1. A drive shaft wrapped with a spiral member is arranged vertically within a product storage column, the product is inserted and supported in the gap between the spiral members, and the product is moved downward by a predetermined rotation of the drive shaft to reach the lower end of the spiral member. A support member that is fixed to the drive shaft at a lower position of the spiral member and protrudes in a substantially fan shape, and one end close to the drive shaft above the support member is rotated. a blocking plate that is freely pivoted and supported substantially horizontally when the support member contacts the lower surface to close the outlet, and that when the support member separates from the lower surface, it rotates downward to open the outlet; , a spring that urges the closing plate to return upward, and a stopper that locks the closing plate that has returned to rotation due to the urging of the spring in a substantially horizontal position, and the terminal end position of the spiral member is adjusted. The support member is positioned above the substantially central portion of the support member, and the vertical distance between the terminal end and the closing plate in the substantially horizontal state is smaller than the thickness of the product, and the rear half of the support member is closed when the product is on standby. A product delivery device for a vending machine, characterized in that it is located on the bottom surface of a board.