JPH0821116B2 - Spiral wire type product storage shelf for vending machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention includes a spiral wire rotated by a drive motor through a rotary shaft, stores a product in a spiral space of the spiral wire, and operates the drive motor. The present invention relates to a spiral wire type product storage shelf for an automatic vending machine that simultaneously lowers products and carries out the products at the bottom one by one.

[Conventional technology]

As an automatic vending machine for selling packed ice cream as a product, one provided with a spiral wire type product storage shelf as shown in FIGS. 4 and 5 is in practical use. In the figure, the vending machine is provided with a door 2 on the front surface of a main body case 1, a heat insulating chamber 3 is sectioned and formed inside, and a loading door 4 and a carry-out door 5 are provided on the front surface of the heat insulating chamber 3. The door 2 is provided with a coin outlet, a commodity sales push button, and the like (not shown) disposed on the front surface thereof, and a commodity outlet 6. A plurality of product storage shelves 7 which are objects of the present invention are accommodated and installed in the heat insulation chamber 3, and a chute 8 and a cooling unit 9A are arranged below the product storage shelves 7. Further, a condensing unit 9B that constitutes a refrigeration cycle together with the cooling unit 9A is provided below the heat insulating chamber 3.

This vending machine stores the products in a product storage rack 7 and stores them in a frozen state, and drops the products one by one from the product storage rack 7 onto a chute 8 according to a sales signal, and carries out the carry-out door 5.
The product is delivered to the product take-out port 6 through the opened carry-out port.

The product storage rack 7 shown in FIG. 6 is known.
The storage section 7A and the drive section 7B will be described separately based on FIG.
First, the storage portion 7A has a rotary shaft extending vertically in the approximate center of the rack case 11 having a door 12 on the front surface and an opening on the lower surface serving as a carry-out end.
A spiral wire 14 running up and down spirally is fixed to the rotating shaft 13 by a plurality of fixing pieces 14a provided at appropriate intervals in the vertical direction. The rack case 11 has bearings 15a and 15b on its top plate 11a.

Next, in the drive unit 7B, the box 21 serving as a motor mount and having a bearing 21a is fixed on the top plate 11a. In this box 21, the drive motor 22
It is fixed via a mounting portion provided in the speed reduction mechanism 23 that is coupled with the. The output shaft 24 of the reduction mechanism 23 has a bearing 15
The chain gear 25 supported by b is fitted. Further, a chain gear 26 supported by the bearings 15a and 21a is provided.
The upper end of the rotary shaft 13 is fitted in the shaft hole 6 and is prevented from rotating by the pin 27. Furthermore, the actuator 29 that operates the rotation control sensor 28 fixedly installed in the box 21 is a chain gear.
Projected on 26 bosses.

In the product storage shelves 7, the products 10 are supported by the spiral wires 14 on both sides of the rotary shaft 13 and are housed one by one in the spiral space. Then, the behavior signal motor 22 is operated based on the control of the rotation control sensor 28 by the sales signal, and the rotation shaft 13 rotates 1/2. The spiral wire 14 together with the rotating shaft 13 makes a 1/2 turn to lower the products 10 all at once, and the products at the lowermost stage are dropped and carried out from the lower opening of the rack case 11. In this way, each time the sales signal is issued, the spiral wire 14 is rotated by 1/2, and the commodities 10 stored in the two rows on the left and right are alternately carried out one by one.

[Problems to be Solved by the Invention]

By the way, the electric components such as the drive motor 22 and the rotation control sensor 28 of the product storage shelf 7 that stores the ice cream are -25 ° C.
It is located in the front and rear heat insulation chambers 3, and is exposed to severe temperature environments such as near normal temperature during product loading, and sometimes is subject to dew condensation during loading. For this reason, there is a concern that the failure rate will be higher than that of a product storage shelf that stores other products, and it is necessary to perform maintenance frequently. However, in the conventional product storage shelf 7, since the transmission system from the drive motor 22 to the spiral wire 14 cannot be easily separated on the way, the entire product storage shelf 7 is removed from the heat insulation chamber 3 when the above maintenance or the electrical equipment fails. The work is carried out by taking it out. In order to prevent the ice cream from melting and losing its commercial value even temporarily even when taking out the product storage shelf 7, it was necessary to perform a preliminary operation of the frozen stocker and transfer the ice cream, which required extremely difficult preparation work. .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a spiral wire type product storage shelf for a vending machine which can cope with maintenance and repair work of electrical components without requiring the above-mentioned great preparation work.

[Means for solving the problem]

In order to achieve the above object, according to the present invention, the rack case has a spiral wire that is fixed to a rotating shaft that runs up and down substantially in the center and that vertically runs around the rotating shaft. The spiral unit includes a storage unit that is supported and stores products in each spiral space, and a drive unit that rotates the rotary shaft via an output shaft of a speed reduction mechanism that is coupled to the drive motor. In a spiral wire type product storage shelf of a vending machine that rotates a wire to lower the products at the same time and carries out the products at the bottom one by one, the drive unit is housed on the top plate of the rack case. A box to be placed is provided, and a fixture is provided between the box and the top plate so that the box can be detachably fixed at a predetermined position. It shall provide a coupling for detachably connecting the rotation shaft and the output shaft when fixed to the upper.

[Action]

Since the drive unit can be easily separated from the box, the drive unit can be taken out for maintenance or repair work while the storage unit is left in the heat-insulated room and the product is frozen. Therefore, the troublesome preparation work can be eliminated.

〔Example〕

FIGS. 1 to 3 show an embodiment of the present invention, in which parts common to or the same as those in FIGS. 4 to 6 are designated by the same reference numerals.

In FIGS. 1 to 3, the rotation speed of the output shaft 24 is the rotation speed required by the spiral wire 14 and the reduction mechanism 23.
Is decelerated by. The box 21 accommodates the drive unit 7B and has a bearing plate 31 attached thereto, and a bearing 32 is provided therein.
33 has one end fitted to the output shaft 24 and the other end bearing
A coupling supported by 32 and a pair with a coupling 34 fitted on the rotating shaft 13. The coupling 33 has a groove 33a and a shaft hole 33b that fits into the output shaft 24, and the coupling 34 has a claw 34a that engages with the groove 33a in a disengageable manner. Further, the actuator 29 is fixed to the coupling 33.
Reference numeral 35 denotes two left and right engaging claws projectingly provided on the lower surface of the rear portion of the box 21, and 37 denotes a fixing bolt hole provided on the front side plate of the box 21. The electrical wiring of electrical components such as the drive motor 22 is connected or disconnected by a coupler 40 arranged on the front surface of the box 21.

The rotating shaft 13 on the side of the storage section 7A has the coupling 34 at the upper end.
Is fitted and the bearing 15a is inserted through this coupling 34.
Further, the tip 13b is tapered so that it can be easily inserted into a shaft hole 33b formed at the center of the coupling 33. The top plate 11a of the rack case 11 is provided with a locking hole 36 into which the locking claw 35 is inserted and locked, and a projecting piece 38 having a screw hole corresponding to the bolt hole 37 with which a machine screw 39 is screwed. To be done.

In the above-mentioned configuration, the drive unit 7B is housed in the box 21, and the locking claw 35 is inserted and locked in the locking hole 36 so that the top plate 11 is locked.
It is mounted on the rack a and is fixed at a predetermined position on the rack case 11 by screwing the machine screw 39 into the screw hole of the projecting piece 38 through the bolt hole 37. In addition, the rotary shaft 13 has a shaft hole
33b and the groove 33a and the claw 34a are engaged with each other so that the output shaft 24
And the rotary shaft 13 are coupled to each other so that they can be transmitted. Then, the electric wiring is connected through the coupler 40, and the product storage shelf 7 is put into an operable state.

At the time of maintenance or repair of the electric components, the drive unit 7B is separated from the storage unit 7A simply and in a short time by the procedure reverse to the above with the product storage shelf 7 being stored in the heat insulation chamber 3, and then removed from the heat insulation chamber 3. Be done.

In the storage section 7A left in the heat insulation chamber 3, the product 10 in it is frozen and stored as it is. Then, the drive unit 7B taken out is rejoined to the storage unit 7A in the heat insulation chamber 3 by the above-mentioned procedure after the maintenance and repair work, and the product storage rack is returned to the operating state. As mentioned above, at the time of maintenance or repair work, it is not necessary to prepare the frozen stock of the ice cream in the rack case 11 and transfer it to this, and the maintenance and repair work,
In addition, the preparation work therefor can be performed very easily and easily.

〔The invention's effect〕

According to the present invention, the rack case is provided with a spiral wire that is fixed to a rotating shaft that runs up and down approximately in the center and that runs vertically around the rotating shaft, and the spiral wire is supported by the spiral wire. And a drive unit that rotates the rotary shaft via an output shaft of a speed reduction mechanism that is coupled to a drive motor, and the spiral wire is rotated by the operation of the drive motor to store the product. Simultaneously lower the product while sequentially lowering the products at the bottom
In a spiral wire type product storage shelf of an automatic vending machine that carries out one by one, a box that accommodates the drive unit and is placed on the top plate of the rack case is provided, and a box is provided between the box and the top plate. Since a fixing tool for detachably fixing at a predetermined position is provided, and further, a coupling for detachably connecting the output shaft and the rotation shaft when the box is fixed on the top plate is provided, it is possible to provide a storage portion. The drive unit can be easily separated and connected, and the drive unit can be taken out and the electrical components can be maintained or repaired while the storage unit remains in the heat insulating chamber. During this time, since the products in the storage section are frozen and stored in the heat insulating room, unlike the conventional case, preparation of a frozen stocker and transfer of the products are not required. Therefore, the maintenance, repair, and preparation work therefor can be performed much more easily and easily than ever before.

[Brief description of drawings]

FIG. 1 is a sectional view of a commodity storage shelf as seen from the side, showing an embodiment of the present invention, and FIG. 2 is a sectional view of the same as seen from the front.
Similarly, the figure is a perspective view with the drive unit separated, FIG. 4 is a sectional view of the vending machine which is the object of the present invention, FIG. 5 is the same schematic front view, and FIG. 6 is the conventional product storage. It is sectional drawing seen from the side surface of a shelf. 7 ... Product storage rack, 7A ... Storage section, 7B ... Drive section, 10 ...
… Merchandise (ice cream), 11 …… Rack case, 11a
...... Top plate, 13 …… Rotary axis, 14 …… Spiral wire, 21
...... Box, 22 …… Drive motor, 23 …… Deceleration mechanism, 24
...... Output shaft, 33,34 …… Coupling, 35 …… Locking claw (fixture), 38 …… Projecting piece (fixture).

Claims (1)

[Claims] 1. A frozen product having a spiral wire which is fixed to a rotating shaft running up and down approximately in the center of a rack case and runs up and down spirally around the rotating shaft, and which is supported by the spiral wire and is frozen in each spiral space. And a drive unit that rotates the rotary shaft via an output shaft of a speed reduction mechanism that is coupled to a drive motor, and the spiral wire is rotated by the operation of the drive motor to store the product. A spiral wire type product storage shelf of an automatic vending machine that simultaneously lowers the lowermost products one by one, and provides a box for accommodating each component of the drive unit at a time, and the box is the rack. A fixing tool is installed on the top plate of the case so that the box can be detachably installed at a predetermined position, and the output can be obtained by fixing or removing the box on the top plate. Spiral-wire product storage shelves of the vending machine and a rotating shaft, characterized by providing a coupling for connecting or separating the.