JPS6327254Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a spiral product conveyance shelf that is widely adopted in vending machines for selling products such as beverages and ice cream in paper packages.

[Conventional technology]

First, the structure of a conventional spiral type product conveyance shelf of this type will be explained with reference to FIGS. 1a and 1b. In the figure, reference numeral 1 denotes a box-shaped product storage shelf, and a vertical spiral conveyor 3 connected to a drive motor 2 is disposed at the center of the shelf. This spiral conveyor 3 consists of a rotating shaft 31 and a single spiral body 32 mounted on this shaft, and the spiral pitch and spiral diameter of the spiral body 32 are appropriately selected according to the size of the product being handled. There is. Further, the spiral body 32 is configured as a spiral wire or a screw blade.
On the other hand, the products 4 are distributed between the spiral conveyors 3 on both sides of the shelf and arranged vertically between the spiral pitches.

Here, in the above-described configuration, the operation when selling one product per one sales command will be explained. That is, when a sales command is given, the drive motor 2 moves the spiral conveyor 3 in the direction of arrow A by 180 degrees.
It rotates once, or half a turn, and then stops. As a result, all of the products 4 stored in the shelves are screwed down and the products in the right row located at the lowest position are dropped and carried out as indicated by arrow B. In the next sales command, the spiral conveyor 3 similarly rotates half a rotation, and this time the products in the left column are carried out. After that, repeat the same operation, 1 for each sales command.
The individual products are dropped and delivered to a product outlet (not shown). In this process, the product 4 comes into contact with the side wall of the shelf 1 or a separately provided anti-rotation column, and is prevented from rotating with the spiral conveyor 3.

Note that this configuration is known from, for example, Japanese Utility Model Publication No. 57-47890.

[Problem that the invention attempts to solve]

Recently, due to the diversification of sales methods, a so-called two-piece sales method has appeared, in which two products can be sold with one sales command, depending on the type of product. In order to implement such a two-piece sales system on the product transport shelf shown in FIG.
It needs to be rotated 360 degrees. For this reason, the time required for carrying out the product is twice that of selling one item. Moreover, even when selling a single item, this kind of spiral-type shelf in conventional machines takes longer to remove the product than other serpentine-type shelves, and the fact that this time is doubled makes it even more frustrating for customers. It gives a pleasant feeling and the serviceability is greatly impaired. Therefore, in addition to shortening the sales time especially when selling two items, it is also difficult for the product purchaser to carry out the products one by one to the product outlet at different times. There is a risk of creating a sense of distrust, such as mistaking it for a malfunction, so from this perspective, it is desirable to be able to synchronize the timing and transport the two products at the same time without any time lag.

Therefore, the purpose of this invention is to
The 180-degree rotation of the spiral conveyor allows two items to be delivered at the same time, making it possible to sell two items in the same sales time as conventional single-item sales machines whose spiral conveyor rotates 180 degrees intermittently. To provide a new spiral-type product conveyance shelf capable of transporting two products at the same time.

[Means for solving problems]

This device involves installing a vertical spiral conveyor connected to a drive motor in the center of the shelf,
In a spiral-type product transport shelf in which products distributed to the left and right sides of the shelf and stored between each spiral pitch of the spiral transport body are transported downward as a whole by intermittent rotation drive of the spiral transport body based on a sales command, and the products are dropped and transported successively from the bottom end.The spiral transport body is a double spiral transport body having two spiral bodies with the same spiral pitch and a phase difference of 180 degrees between them, and two units of products are dropped and transported simultaneously for each sales command by a 180-degree rotation of the spiral transport body.

[Effect]

According to the spiral wire type product conveyance shelf of a vending machine constructed based on the above means, the double spiral body 3 constituting the double spiral conveyance body
3 and 34 are installed on the same axis with the same spiral pitch and a phase difference of 180 degrees between them, so the double spiral conveyor is rotated 180 degrees for each sales command. One product is simultaneously delivered from each spiral body 33, 34. Therefore, this is the same 180-degree rotation as the conventional machine that sells one product by rotating the spiral conveyor 180 degrees, that is, a total of 2 products in the same amount of time.
items can be delivered at the same time.

〔Example〕

This invention will be explained in detail below based on illustrated embodiments. In FIGS. 2a and 2b, according to this invention, the spiral conveyor 3 has a double spiral structure,
Two spiral bodies 33 and 34 are provided coaxially with the rotating shaft 31. This spiral body 33 and 3
4 are arranged in parallel on the axis with the same spiral pitch and a phase difference of 180 degrees in the circumferential direction between them. As a result, the spiral bodies 33 and 34 are arranged so that their peaks and valleys are at the same height. On the other hand, as in FIG. 1, the products 4 are distributed between the spiral pitches 3 on both the left and right sides of the shelf and arranged vertically between the spiral pitches.

In the above configuration, when the drive motor 2 is driven based on a sales command and the spiral conveyor 3 is rotated in the direction of arrow A, the spiral bodies 33 and 34 rotate simultaneously, and when the spiral body 33 and 34 rotate half a rotation,
The lowest order products 4 in the left and right columns stored between the 34 pitches are simultaneously dropped and carried out from the left and right sides as indicated by arrows B and B', respectively, at the same time. That is, by rotating the spiral conveyor 3 at 180 degrees for each sales command, which is the same as in the conventional machine, two products can be delivered simultaneously without any time difference in the same time as in the conventional machine when selling one product. Moreover, the rotation angle of the spiral conveyor 3 required for one selling operation is
Since it only needs to be 180 degrees, the sequence control device of conventional single-piece vending machines can be used as is, and the sales time is the same as for conventional single-piece vending machines.

[Effect of idea]

As described above, according to this invention, for each sales command, two products can be delivered at the same time by rotating the spiral conveyor 180 degrees, so the spiral conveyor rotates intermittently 180 degrees to deliver two products at the same time. It is possible to provide a spiral-type product conveyance shelf for selling two items, which has high practical value and can sell two items in the same selling time as a conventional selling machine, and can also transport two items at the same time. .

[Brief explanation of drawings]

FIGS. 1A and 1B and FIGS. 2A and 2B are a front view and a bottom view respectively showing the structure of a spiral type product conveyance shelf according to a conventional product and an embodiment of the present invention. 1... Product storage shelf, 2... Drive motor, 3...
Spiral conveyor, 31... Rotating shaft, 33, 34
...Spiral body, 4...Product.

Claims (1)

[Scope of utility model registration request] A spiral conveyor with a vertical shaft connected to a drive motor is installed in the center of the product shelf, and the products distributed on the left and right sides of the shelf and stored between each spiral pitch of the spiral conveyor are sent to the sales command. In a spiral type product transport shelf in which the entire stored product is moved downward and sequentially dropped from the bottom end by intermittent rotational drive of the spiral transport body based on It becomes a double spiral conveyor with a double spiral body installed on the same axis with a phase difference of 180 degrees.
A spiral type product conveyance shelf for a vending machine, characterized in that, for each sales command, two products are simultaneously dropped and carried out by rotating the spiral conveyance body by 180 degrees.