JPS5949632B2 - Spiral wire type product delivery device for vending machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a spiral wire type product delivery device for a vending machine.

A so-called spiral wire type product delivery device for a vending machine is well known, and its conventional structure is as shown in FIG.

In the figure, reference numeral 1 denotes a product storage warehouse which is a casing with the lower end open as a product delivery port. Inside the warehouse, a spiral assembly 2 consisting of a vertical rotation shaft 21 and a spiral wire 22 is installed. The upper end of 21 is connected to the pendant motor 3.

The spiral wire 22 is made of a spring material such as a piano wire, and its upper and lower starting and ending ends are fixed to the rotating shaft 21. The products 4 stored in the store are supported side by side as shown in the figure.

In this state, if the pen motor 3 is started based on the sales command and the rotating shaft 21 is rotated in the direction of arrow A, the products stored in the refrigerator 4
As the spiral wire 22 rotates, the products are successively pushed downward and taken out from the delivery end of the storage 1 as shown by arrow B, and delivered to a product delivery port of a vending machine (not shown).

The rotation angle of the rotary shaft 21 is detected by, for example, a cam 5 and a switch 6 attached to the rotary shaft, and the pendant motor 3 is controlled to stop when the rotary shaft 21 is rotated by a predetermined angle (180°) based on a switch signal.

By the way, in the conventional spiral assembly 2, the starting end and the ending end of the spiral wire 22 are fixed to the rotating shaft 21, and the product storage pitch P is set constant over the entire area between them.

For this reason, only products with sizes that match the pitch P can be handled, and in order to sell products of different sizes, another spiral assembly 2 with a different pitch P of the spiral wire 21 must be prepared in advance. It was necessary to replace the spiral assembly 2 each time according to the product size.

However, this method requires the preparation of several types of spiral assemblies, which is uneconomical and troublesome, and is difficult to deal with the diversification of products.

The present invention has been made in consideration of the above points, and its object is to provide a spiral wire type product in which the product storage pitch of the spiral wire in the same spiral assembly can be easily and variably adjusted over a wide range according to the size of the product to be sold. The purpose is to obtain an unloading device.

In order to achieve this purpose, according to the present invention, a pitch adjustment mechanism is installed on the rotating shaft of the spiral assembly to concentrate a part of the spiral wire toward the starting end, and the product storage pitch of the spiral wire is adjusted by operating the pitch adjustment mechanism. This is achieved by configuring it to be variably adjusted according to the size of the stored product.

The present invention will be described in detail below based on illustrated embodiments.

First, in the spiral assembly 2 shown in FIG. 2, a pitch adjustment mechanism 7 according to the present invention is installed at the upper end of the rotating shaft 21, which is the starting end side of the spiral wire 22, slightly below the starting end of the spiral wire. Furthermore, the spiral wire 22 is connected to the rotating shaft 2 at an appropriate location in the middle of the spiral wire 22.
A support arm 8 is provided for supporting the support 1.

The detailed structure of this pitch adjustment mechanism T is as shown in FIGS. It is supported by a stopper 73 and fitted onto the rotating shaft so as to be rotatable in the directions of arrows C and D.

Furthermore, during assembly, the spiral wire 22 is passed through the wire passing hole 72 in advance.

The stopper 73 is fixed to the rotating shaft 21 with a set screw 74, and the mounting position of the stopper 73 can be moved if necessary.

On the other hand, the support arm 8 includes a bub 81 that is loosely fitted to the rotating shaft 21 as shown in FIG. It consists of 83.

Next, a description will be given of an operation for changing and adjusting the product storage pitch of the spiral wire 22 with the above configuration.

First, FIG. 5a shows a state in which the drum 71 is rotated all the way in the direction of arrow C in FIG. 3a.

In this case, the spiral wire 22 is not restrained by the drum 71 and is in a suspended state, and its pitch is Pl.

When the drum 71 is turned in the direction of the arrow in FIG. 3a from this state, the spiral wire 22 is guided by the wire through hole 72 as shown in FIG. It will be done.

As a result, the spiral wire 22 is pulled vertically in the range between the drum 71 and the end of the spiral wire,
The axial pitch of the spiral wire 22 changes to P2, which is larger than Pl.

By rotating the claw 9 drum 71, the system spiral wire 2
The pitch of No. 2 can be adjusted steplessly according to the size of the stored products.

On the other hand, in the above-mentioned support arm 8, the set screw 82 is loosened when changing the pitch, and when a new pitch is set, the set screw 82 is tightened to fix the bub 81 to the rotating shaft.

By doing so, the support arm 8 can be moved along the rotation axis following the pitch change of the spiral wire.

6 and 7a and 7b show other embodiments of the pitch adjustment mechanism 7. FIG.

In this embodiment, instead of the drum in FIG. 2, a bub 75 is rotatably fitted into the rotating shaft 21, and a wire handle having a diameter larger than the spiral wire 22 extends radially from the bub 75 and protrudes. A latch rod 76 is provided.

This pitch adjustment mechanism is installed below the starting end position of the spiral wire 22 as in the previous embodiment, and by manually rotating the rod 76 in the direction of the arrow C or D, the spiral wire 22 can be pulled in or out. The pitch P can be variably adjusted by feeding it out.

As is already clear from the above description, according to the present invention, it is possible to variably adjust the product storage pitch of the product conveyance spiral wire installed on the rotating shaft over a wide range.

Therefore, by setting the pitch according to the sizes of various products accompanying the diversification of products, it is possible to greatly contribute to improving the product storage efficiency in the product storage warehouse, and the pitch adjustment mechanism is extremely simple.

The present invention can be applied to vending machines for various products such as products in tetra containers and products in bowl containers.

[Brief explanation of the drawings] Figure 1 is a configuration diagram of the entire spiral type product discharging device, Figure 2
The figure is an external perspective view of one embodiment of the present invention, and Figures 3a and 3b are the second embodiment.
4 is a detailed configuration diagram of the support arm, FIGS. 5a and 5b are explanatory diagrams of pitch adjustment operation, and FIG. 6 is an external perspective view of another embodiment. ,
1a and 1b are a plan view and a side view of the pitch adjustment mechanism in FIG. 6. 1...Product storage, 2...Spiral assembly, 21...Rotating shaft, 22...Spiral wire, 3...Pend motor , 4...
...Product, 7...Pitch adjustment mechanism, 71.
...Drum, 72...Wire through hole, 7
5...Bub, 76...Wire pulling rod, 8...Support arm, B...Product removal direction, P, P, P2... ...The pitch of the spiral wire.

Claims (1)

[Scope of Claims] 1. A spiral assembly consisting of a rotating shaft and a spiral wire constructed by fixing the starting and ending ends of the wire to the rotating shaft is installed in a product storage, and is stored between each pitch of the spiral wire. In the spiral wire type product delivery device of a vending machine, the product is conveyed sequentially from the start end to the end of the system spiral wire by the rotational drive of a rotating shaft, and then transported out of the warehouse from the end. A pitch adjustment mechanism for intensively pulling one area toward the starting end side is installed on the rotating shaft, and the product storage pitch of the spiral wire is variably adjusted according to the size of the stored product by operating the pitch adjustment mechanism. A spiral wire type product delivery device for a vending machine, which is characterized by: 2. In the spiral wire type product carrying device according to claim 1, the pitch adjustment mechanism is rotatably supported on the rotating shaft, and the bottom surface is provided with a wire passage [7 holes formed in the drum] for passing the spiral wire. Spiral wire type product delivery device for vending machines. 3. In the spiral wire type product carrying device according to claim 1, the pitch adjustment mechanism includes a bub rotatably supported on a rotating shaft, and a wire handrail protruding from the bub in a radial direction. A spiral wire type product delivery device for vending machines that consists of a pull rod. 4. In the spiral wire type product discharging device according to claim 1, an automatic device in which the spiral wire is supported via a support arm fixed at an appropriate point in the middle so as to be movable and adjustable in the axial direction with respect to the rotation axis. Spiral wire type product delivery device for vending machines.