JPH0142036B2 - - 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, Utsukai Showa 57-137079
It is shown in the publication No.

(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 product delivery device that can reliably prevent mischief even with large products and can reliably deliver the product.

(d) Means for Solving the Problems The present invention arranges a drive shaft wrapped with a spiral member in a product storage column in the vertical direction, inserts and supports the product into the gap between the spiral members, and rotates the drive shaft in a predetermined manner. The product is moved downward by a spiral member and delivered through a delivery port from the lower end of a spiral member, the support member being fixed to the drive shaft at a lower position of the spiral member and protruding radially, and the support member being rotated. The rollers are provided at the front and rear ends of the support member, and one end close to the drive shaft is rotatably supported on the upper side of the support member, and the rollers are supported substantially horizontally by contacting the lower surface. a closing plate that closes the outlet and can rotate downward to open the outlet when the roller leaves the lower surface;
The terminal end of the spiral member is located above the substantially central portion of the support member, and the vertical distance between the terminal end and the closing plate in a substantially horizontal state supported by the support member is formed to be smaller than the thickness of the product. In addition, the roller at the rear end is placed in contact with the lower surface of the closing plate during product delivery standby.

(E) Effect The present invention having such a structure supports the closing plate on which the product is placed substantially horizontally by positioning the roller at the rear end of the support member in contact with the lower surface of the closing plate during product delivery standby, Further, the terminal end of the spiral member is located above the substantially central portion of the support member that is detached from the closure plate. When the drive shaft rotates a predetermined amount during product delivery, the roller of the support member rolls on the lower surface of the blocking plate to release the support, so the blocking plate rotates downward due to the product load and sends out the product. do. When the roller at the tip of the support member comes into contact with the closing plate and rotates back to a substantially horizontal state and enters the supported state, the product that was supported in a spiral is released from support from the end, and the product is spaced at intervals smaller than the thickness of the product. It acts so that it falls and is placed on the blocking plate where it is located.

(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, and has a shape that projects radially within a range of approximately 120 degrees from the drive shaft 6 side, and a tip in the rotation direction. A rotatable roller 11 is provided at each protruding end of the central portion 10C between the tip 10A and the rear end 10B, and the front end 10A and the rear end 10B. Further, the support member 10 is arranged such that the center portion 10C of the support member 10 is located below the terminal end portion 8A of the spiral member 8.

12 connects one end close to the drive shaft 6 side to the front and rear walls 1
This is a closing plate that is rotatably supported on a shaft 13 installed between A and 1B, and is capable of opening and closing the outlet 3. The supporting member 10 extends into the outlet 3 and closes the lower surface 12A of the closing plate 12. By being positioned corresponding to , downward rotation is prevented and supported in a substantially horizontal state. In addition, the closing plate 12 and the spiral member 8 are in a substantially horizontal state.
The vertical distance B between the end portion 8A and the end portion 8A is made smaller than the thickness C of the product A to reduce the impact of falling from the spiral member 8 to the closing plate 12.

Reference numeral 14 denotes a regulating member that prevents the product A from clogging by regulating the product A supported on the closure plate 12 from moving toward the shaft 13 that supports the closure plate 12, and extends between the front and rear walls 1A and 1B. It is set up.

A control cam 15 is provided to rotate with the rotation of the drive shaft 6, and as shown in FIGS. The control switch 16 is operated at a position corresponding to 12A 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 2. 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 12A of the closing plate 12 due to the rotation of the drive shaft 6. Then, as shown in FIG.
The roller 11 at the rear end 10B is the lower surface 1 of the closing plate 12.
When separated from 2A, the blocking plate 12 is released from support by the support member 10, is rotated downward by the load of the product A, opens the delivery port 3, and sends the product A out. At this time, the support member 10 is located on the reflection side of the output port 3 with the drive shaft 6 interposed therebetween. When the drive shaft 6 further rotates, the roller 11 at the rotating tip 10A of the support member 10 presses the hanging plate 12 to return it to a horizontal state, and the roller 11 of the support member The lower surface of 12 is supported. Due to the rotation of the drive shaft 6 after this supported state, the product A stored in the lowest gap 9 of the spiral member 8 is separated from the terminal end 8A of the spiral member 8 and dropped onto the closing plate 12. When the terminal end 8A of the spiral member 8 leaves the top of the closing plate 12 and reaches the state shown in FIG. 3, the control cam 1
5 operates the control switch 16 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. In addition, since the support member is supported by rollers in contact with the closing plate, even when selling large and heavy products, the drive shaft by the drive motor can be prevented. Rotation becomes easier. 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 dispensing device according to an embodiment of the present invention; FIG. 1 is a front view in a standby state, FIG. 2 is an enlarged longitudinal sectional front view of the same main parts, and FIG. The enlarged cross-sectional plan view and FIG. 4 are enlarged longitudinal cross-sectional front views of the main parts during the product delivery operation. 3...Outlet port, 6...Drive shaft, 8...Spiral, 8A...Terminal part, 10...Support member, 10A
...Tip, 10B...Rear end, 11...Roller, 1
2...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 fixed to the drive shaft at a lower position of the spiral member and protruding radially from the spiral member, and rollers provided at the front and rear ends of the support member in the rotating direction. , one end close to the drive shaft is rotatably supported on the upper part of the support member, and when the roller comes into contact with the lower surface, it is supported substantially horizontally and closes the delivery port, and the roller is separated from the lower surface. and a closing plate that can be rotated downward to open the outlet, the terminal end of the spiral member being positioned above a substantially central portion of the support member, and supported by the terminal end and the support member. A vending machine characterized in that the vertical distance between the closing plate and the closing plate when in a substantially horizontal state is smaller than the thickness of the product, and the roller at the rear end is positioned in contact with the lower surface of the closing plate when waiting for delivery of the product. product delivery device.