JPS60694Y2 - Vending machine spiral wire product storage shelf - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a spiral wire type product storage shelf for a vending machine that is provided with a spiral wire standing upright in the product storage chamber.

The spiral wire type product storage shelf shown in FIG. 1 is used in a vending machine that sells rectangular parallelepiped packaged products and is already well known.

In FIG. 1, reference numeral 1 denotes a product storage room partitioned by thin iron plates and open at the front and bottom surfaces, 2 a drive motor supported on the ceiling wall of the product storage room 1, and 3
is a rotating shaft whose upper end is directly connected to the output shaft of the drive motor 2 and which extends vertically into the product storage chamber.The lower end of this rotating shaft 3 is supported by a bearing attached to the frame plate 1a at the lower front of the product storage chamber 1. There is.

5 is a spiral wire formed using a wire such as a hard steel wire, and this spiral wire 5 is arranged so that the rotating shaft 3 is inserted through its center, and both ends are connected to the spiral wire 5 and the rotating shaft, respectively. It is fixed to the rotating shaft by support arms 6 and 7 welded to 3.

The support arms 6 and 7 extend in the radial direction of the spiral wire 5 and are mounted at right angles to the axis of rotation.

The upper and lower end portions of the spiral wire 5 are fixed by support arms 6, and the intermediate portion thereof is fixed by an appropriate number of support arms 7.

It is normal that there is a gap of about 10 mm between the spiral wire 5 fixed in this manner and the inner surface of the side wall of the product storage chamber 1.

8 is a product stored in a manner that it is held by the spiral wire 5, and 9 is provided along the front surface with both upper and lower ends secured to the ceiling wall and frame board of the product storage chamber 1 to prevent the product 8 from falling off. This is a protected product guard.

When storing the product, the product guard 9 is moved left and right to open the front side.

In the above-mentioned product storage shelf, products 8 are stored in two rows on the left and right with the rotating shaft 3 sandwiched within the helical space of the spiral wire 5.

Then, the spiral wire 5 is rotated by 180 degrees by the drive motor 2 which rotates according to the sales command, and the product 8 is rotated.
At the same time, the products at the bottom are sequentially delivered from the bottom opening toward the product outlet.

However, in the above-mentioned product storage shelf, as shown in FIGS. 2 and 3, when the support arm 7 approaches the product 8 from above and comes to a position approximately parallel to the front and back direction of the product, The rotary shaft side end 7a of the support arm 7 was in a state where it was likely to interfere with the product 8, and there was a risk that the product 8 would be damaged due to this interference.

Moreover, in order to avoid this danger, the pitch of the spiral wires 5 must be increased, which has the disadvantage that the number of stored products 8 is reduced.

The purpose of this invention is to provide a spiral wire type product storage shelf for a vending machine that eliminates the above-mentioned drawbacks and prevents products from being damaged due to interference from the support arm.

The purpose of this is, according to this invention, a spiral wire is installed in the product storage chamber around a rotating shaft extending vertically, and the product held in the spiral space of the spiral wire is sent downward by the rotation of the spiral wire. In the spiral wire type product storage shelf of the machine, the spiral wire is fixed to the rotating shaft via a radially extending support arm having one end fixed to the spiral wire and the other end fixed to the rotating shaft, and the supporting arm is fixed to the rotating shaft. This is achieved by inclining the end of the rotating shaft so that it is higher than the end of the spiral wire, approximately matching the lead angle of the spiral wire.

Hereinafter, embodiments of this invention will be described based on the drawings.

In the figures, parts common or identical to those in FIGS. 1 to 3 are designated by the same reference numerals.

4 and 5, the support arm 7 extends in the radial direction of the spiral wire 5, and one spiral wire side end 7b is attached to the other rotating shaft side end 7b.
a are welded to the rotating shaft 3, respectively.

At this time, according to this invention, the spiral wire 5 is installed so as to be inclined at an angle θ substantially close to the lead angle so that the rotating shaft side end 7a is higher than the spiral wire side end 7b.

On the other hand, the inclination angle θ in the front-rear direction of the product 8 held by the spiral wire 5 is expressed as ton θ,=P/2D, where the diameter of the spiral wire 5 is D1 and the pitch is P.

Also, the lead angle θ0 of the spiral wire is θ.

=P/D. Therefore, in the product storage shelf configured as described above, as shown in FIG. 6 and FIG. It is almost parallel to the top surface of the product 8 and does not interfere with the product.

By eliminating interference in this way, the pitch of the spiral wire 5 can be shortened.

In this product storage shelf, as shown in FIGS. 8 and 9, when the support arm 7 is located below the product 8 and is approximately perpendicular to the front-rear direction of the product, the support arm 7 is aligned with the rotation axis 3 of the product 8. push up.

However, in this case, the upper part 8a of the product 8 tilts outward, increasing the gap between it and the spiral wire 5 running above the product.

Therefore, even in the above-mentioned state, the installation of the support arm 7 according to this invention will not cause any problem in storing the product 8.

As described above, according to this invention, the support arm that extends in the radial direction and fixes the spiral wire to the rotating shaft is arranged so that the end on the rotating shaft side is higher than the end on the spiral wire side, almost matching the lead angle of the spiral wire. Since it is tilted, it is possible to prevent the rotating shaft end side of the support arm from interfering with the product when the support arm approaches the underside of the product.

Therefore, the product is not damaged, and the pitch of the spiral wire can be shortened to increase the number of products stored.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional product storage shelf, Figs. 2 and 3 are a cross-sectional view and a longitudinal sectional view to explain the drawbacks of the conventional product storage shelf, and Figs. 4 and 5 are A front view and a cross-sectional view showing a product storage shelf according to an embodiment of this invention, and FIGS. FIG. 7 is a cross-sectional view and a vertical cross-sectional view corresponding to FIGS. 2 and 3, respectively, and FIGS. 8 and 9 are cross-sectional views and vertical cross-sectional views showing the case where the support arm is positioned below the product in the horizontal direction. FIG. 1... Product storage room, 3... Rotating shaft, 5
...Spiral wire, 6,7...Support arm, Death...Product.

Claims (1)

[Scope of utility model registration request] In the spiral wire type product storage shelf of a vending machine, the spiral wire type product storage shelf of a vending machine is provided with a spiral wire that revolves around a rotating shaft extending vertically in a product storage chamber, and the product held in the spiral space of the spiral wire is sent downward by rotation of the spiral wire. fixing the spiral wire to the rotating shaft via radially extending support arms having one end fixed to the spiral wire and the other fixed to the rotating shaft;
A spiral wire type product storage shelf for a vending machine, characterized in that the support arm is inclined so that the end on the rotating shaft side is higher than the end on the spiral wire side, almost matching the lead angle of the spiral wire.