JPH02230392A - Spiral wire type product housing pack for automatic vending machine - Google Patents

Abstract

PURPOSE:To increase the number of housing of a product or to miniaturize external size by setting a lead angle within at least a range of 1/4 winding at upper and lower sides centering the fixing position of a supporting piece of a spiral wire larger than the lead angle of another part. CONSTITUTION:The spiral wire 9 is formed with unequal pitch of the lead angle theta2 for at least the 1/4 winding at upper and lower sides i.e. 1/2 winding centering the fixing position of the supporting piece 8, and the lead angle theta1 for another part. A gap with size 2x is provided between upper and lower spiral wires and the product 10 at the mounting part of the supporting piece 8 of the spiral wire 9, and the product 10 can be carried smoothly even when the supporting piece 8 is moved forward or backward by the rotation of the spiral wire 9. Meanwhile, the pitch size of a part other than the mounting part of the supporting piece 8 is formed with the pitch (p) smaller by 4x per winding. Thereby, the external size can be miniaturized, or the number of housing of the product can be increased.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is fixedly supported by a plurality of upper and lower support pieces on a rotating shaft extending vertically through the center of a rack case, and runs vertically around the rotating shaft in a spiral manner. This spiral wire type product storage shelf for a vending machine is equipped with a spiral wire, and products supported by the spiral wire and stored in two rows on the left and right sides of a rotating shaft are sequentially dropped and carried out one by one by the rotation of the spiral wire.

[Conventional technology]

As this type of product storage shelf, those shown in FIGS. 3 to 5 are known. In the figure, a product storage shelf 1 includes a rectangular rack case 2, and this rack case 2 has a door 3 on the front side, and the lower surface thereof is opened as a discharge end. Further, a box-shaped mount is provided on the top plate, and a drive device 4 consisting of a motor and a speed reduction mechanism is installed. Drive 4 via coupling 5
A rotating shaft 6 connected to the output shaft of the rack case 1 extends downward through the center of the rack case, and its lower end is supported by a bearing 7 fixed to the rack case 1. A spiral wire 9 is provided around the rotating shaft 6, running vertically in a spiral manner, and fixedly supported by the rotating shaft 6 via a support piece 8. The support piece 8 has one end welded to the rotating shaft 6, extends horizontally in the radial direction, and the other end welded to the spiral wire 9. A plurality of wires are provided above and below the spiral wire 9. Note that 11 is a sensor for controlling the rotation of the spiral wire 9. In the product storage shelf 1, the products 10 are supported by a spiral wire 9, and the products 10 are stored one by one in the spiral space and arranged vertically on the left and right sides of the rotating shaft 6. Then, by driving the drive device 4 according to the sales signal, the spiral wire 9 is
The products 10 are rotated by 80@, and the products 10 are lowered all at once, and the products 10 on the lowest stage are released from the support of the spiral wire 9, fall, and are carried out to the product removal port. In this way, the products 10 on the bottom row are carried out one by one, alternating left and right. [Problems to be Solved by the Invention] By the way, in the product storage shelf l, it is possible to set the pitch of the spiral wire 9 without leaving a large gap between the product 10 stored in the spiral space and the spiral wire 9. The external shape can be made small, or a large number of products for the same height1
This is advantageous because it can store 0. However, when storing the product 10 with a smaller gap, the supporting piece 8 is on the slope formed by the spiral wire 9 at the lateral position (a), but when the spiral wire 9 rotates, the supporting piece 8 is at the forward position ( In the position b) and the rear position (C), as shown in FIGS. 6 and 7, interference of magnitude X occurs near the rotating shaft 6 with respect to the product 10 below or above it. In this way, X's interference occurs in 1/4 volume. Because of this, the conventional spiral wire 9 has a pitch P+ which is large enough to accommodate the product 10 with almost no gaps.
Formed as a 4x equal pitch spiral wire.

For this reason, disadvantages such as an increase in the external size, that is, a height, or a decrease in the number of stored products 10, cannot be avoided.

The object of the present invention is to provide a spiral wire type product storage shelf that can minimize the disadvantages caused by the support pieces and increase the number of products stored or reduce the external size. [Means for Solving the Problems] In order to achieve the above object, according to this invention, a rotating shaft that extends vertically through the center of the rack case and whose upper end is connected to a drive device is provided with a rotating shaft that extends around the rotating shaft. A spiral wire that runs vertically in a spiral shape is fixed at both ends by a plurality of upper and lower supporting pieces that are fixed to the rotating shaft and the spiral wire, respectively, and is supported by the spiral wire and arranged vertically in two rows on the left and right with the rotating shaft in between. The products stored side by side are lowered all at once by rotating the spiral wire in 180" increments in response to a sales signal, and the products in the bottom row are lowered one by one.
In a spiral wire type product storage shelf of a vending machine where items are dropped and carried out one by one, a lead angle of at least 1/4 turn above and below the fixing position of the support piece of the spiral wire is set to the lead angle of other parts. It shall be larger than the angle. [Function] The above interference can be avoided by increasing the pitch by 1/2 turn around the attachment part of the support piece. In addition, since the pitch of the portion where the support pieces are not attached eliminates the gap for avoiding the interference, the height of the product storage shelf is reduced or the number of products stored is increased accordingly.

〔Example〕

1 and 2 show an embodiment of the present invention, and parts common or identical to those in FIGS. 3 to 7 are designated by the same reference numerals.

In FIGS. 1 and 2, θ1 is the lead angle of the spiral wire 9 that forms a pitch P of a size that allows the commercial crystal 10 to slide between the upper and lower spiral wires with an extremely small gap. . θ2 is a lead angle at which the size of 1/2 pift is 1/2P + 2x for 172 turns of spiral wire in which one product is stored. Therefore, the spiral wire 9 is formed with lead angles θ2 for at least 1/4 turns above and below, ie, 1/2 turns around the fixed position of the supporting piece 8, and at unequal pitches with lead angles θ1 for the other parts. Ru.

In the above configuration, the spiral wire 9 is connected to the support piece 8
At the installation part, a gap of size 2x is provided between the upper and lower spiral wires and the product 10, and the spiral wire 9
Even if the support piece 8 moves to the front position (b) or the rear position (c) by rotation, the product 10 is smoothly conveyed. On the other hand, in areas other than the mounting part of the support piece 8, the pitch size is 4x smaller than the conventional pitch P per turn, making it possible to significantly reduce the overall height, or if the size is the same, the product 10 It is possible to accommodate one or more.

〔Effect of the invention〕

According to this invention, a spiral wire runs up and down in a spiral shape around the rotating shaft, which extends vertically through the center of the rack case and is connected to the drive device at its upper end, and has both ends connected to the rotating shaft, respectively. The products are fixed by a plurality of upper and lower support pieces fixed to the spiral wire, and are supported by the spiral wire and stored vertically in two rows on the left and right with the rotation axis in between. In a spiral wire type product storage shelf of a vending machine in which the products in the lowest tier are rotated and lowered all at once, and the products in the lowest row are sequentially dropped one by one, Since the lead angle in the 1/4 roll range is larger than the lead angle in other parts, the product can be conveyed smoothly without interference between the product and the support piece at the mounting part of the support piece, and the external shape has been reduced compared to conventional methods. It is possible to provide a spiral wire type product storage shelf that can be downsized or can accommodate a large number of products.

[Brief explanation of the drawing]

Fig. 1 is a front view of a spiral wire of a product storage shelf showing an embodiment of this invention, Fig. 2 is a line diagram for explaining the difference in lead angles, and Fig. 3 is a product storage shelf to which this invention is applied. FIG. 4 is a cross-sectional view of the shelf, FIG. 5 is a perspective view of a conventional spiral wire, FIG. FIG. 7 is an explanatory diagram showing that the support piece located at the rear position interferes with the product. 1...Product storage shelf, 2...Rack case, 6...
Rotating shaft, 8... Support piece, 9... Spiral wire,
Figure 2 Figure 2 Figure 2

Claims (1)

[Claims] 1) A spiral wire runs up and down in a spiral around the rotating shaft, and has both ends connected to the rotating shaft and the spiral wire, respectively. The products are fixed by a plurality of upper and lower supporting pieces, and are supported by these spiral wires and stored vertically in two rows on the left and right with the rotating shaft in between.
In a spiral wire type product storage shelf of a vending machine, which is rotated in degrees at a time and lowered all at once, and the products in the lowest row are dropped and carried out one by one, at least above and below the fixing position of the support piece of the spiral wire. 1
A spiral wire type product storage shelf for a vending machine, characterized in that the lead angle in the range of 4 volumes is larger than the lead angle in other parts.