JPH03233796A - Commodity discharge device for automatic vending machine - Google Patents

Abstract

PURPOSE:To reduce on impact force for working on a second commodity by releasing an extrusion executed by an extruding cam in a position being lower than a start level of the drop control executed by a stopper and reducing a drop distance of a second commodity by the drop quantity of the stopper. CONSTITUTION:As an extruding cam 11 turns and extrudes a freely ascendable/ descendable stopper 9 into a commodity passage, the extruding cam 11 is depressed gradually by following the cam face of an ascent/descent control cam 19. The stopper 9 of a discharge side angaged to the extruding cam 11 by an engaging part descends together with the extruding cam 11, and a second commodity I2 also descends gradually. In a position in which it descends by the ascent/descent control cam 19 face, the extrusion of the stopper 9 by the extruding cam 11 is released, and a second I2 and the upper commodity I3... than it drop down onto a receiving base returned to a closed position. That is, a drop distance of a second commodity I2 is reduced by the descent quantity of the stopper 9. In such a way, the impact for working on the commodity I2 immediately after a commodity C1 is discharged is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a direct stacking type product dispensing device.

5 to 7 of the prior art publication No. 1-21420 show a product dispensing device of the following type.

As shown in FIG. The second pedestal is pivotally supported by a shaft 3.degree. 4, and its downward rotation is restricted by a cam plate 5.

The cam plate 5 has a semicircular shape, and the first cam plate 5 has a semicircular shape. It is fixed to the tip of the drive shaft 6 passed through the drive shaft insertion portion C formed between the second side plates A and B so as to be horizontally rotatable. 1st. Second pedestal 1
, 2, respectively. Products 7, 8 in the second column
are piled up, and here product 7 in the first column
From below to above, L+ I2+ Il+
...and sign. Similarly, product 8 in the second column
Tlr + T12 + II from below to above
Add the sign 3 + .... 9. IO is a stopper whose upper end is supported by shafts 13 and 14 fixed to the stocker main body, and is pushed out by a pushing cam 11 fixed to the drive shaft 6 and is connected to the stocker side wall 12 by the first stopper. Regulates the descent of the second item from the bottom of the second column.

FIG. 6 shows that product 11 is dispensed when the first dispensing instruction is detected, and product ■1 is dispensed when the next dispensing instruction is detected.
The first step in the process of paying out The state of the second pedestal 1.2 and the cam plate 5 is shown. FIG. 6(a) shows the initial state of FIG. When the first payout instruction is detected, the cam plate 5 rotates 90° clockwise as shown in FIG. 6(b).
The first pedestal 1 and the cam plate 5 are disengaged. Incidentally, at the time when the cam plate 5 rotates 90° and the first pedestal 1 rotates downward, the second product I2 is placed on the side wall 12 of the stocker main body in advance, as shown in FIG. and extrusion cam I
The descent is regulated by the stopper 9 pushed out by I, and when the first pedestal 1 rotates downward, only the product 11 is dispensed.

When the product 11 is dispensed, the cam plate 5 rotates 90 degrees from the state shown in FIG. 6(b) to the state shown in FIG. The second product I2 returns to the position indicated by the line, and the stopper 9 releases the second product I2 from lowering, and the second product I2 and the product I3 above it are released.
... falls onto the first pedestal 1.

Problems to be Solved by the Invention In such a conventional configuration, the stopper 9 releases the restriction on the descent of the second product I2, and the second product I2 and the product I3 above it are moved to the second product I2. The product was damaged due to the long distance it fell when it fell onto the pedestal 1. There is a problem that a very large impact force acts on the

An object of the present invention is to provide a product dispensing device that can reduce this impact that acts immediately after dispensing the product.

Means for Solving the Problems The product dispensing device of the present invention has a first... A second side plate is provided to divide the interior of the stocker body into a first column product stacking path, a drive shaft insertion portion, and a second column product stacking path. At the lower opening of the second column product stacking path, one end of the drive shaft insertion portion side is rotatably supported, and the other end of the first column protrudes into the product path. A second cradle is provided, and a first cradle is provided. The downward rotation of the second pedestal is controlled by the first pedestal, which is attached to a drive shaft inserted vertically through the drive shaft insertion portion. It is supported and regulated by a semicircular cam plate that rotates horizontally at the lower position of the second pedestal, and the cam plate is rotated by a predetermined angle. Before releasing the contact between one of the second pedestals and the cam plate, a push-out cam that is rotationally driven by the drive shaft pushes out the stopper into the product aisle so that it reaches the second pedestal from the bottom on the dispensing side pedestal. The stopper is slidably supported in the vertical direction, and the pushing cam is slidable in the vertical direction with respect to the drive shaft. The push-out cam is configured such that an engaging portion that engages with a stopper on the product dispensing side is provided at the upper end of the push-out cam, and is engaged with the push-out cam on both sides of the push-out cam to rotate from the standby position to the product dispensing position. Accordingly, an elevation regulating cam having a cam surface that gradually pushes down the pushing cam downward is provided, and a biasing means is provided for urging the pushing cam in the direction of contacting the cam surface of the elevation regulating cam. Features.

According to this configuration, in the standby state, the push-out cam is urged by the urging means and comes into contact with the upper end of the cam surface of the lifting-regulating cam on the fixed side, and the stopper supported so as to be able to move up and down reaches the upper limit. stopped in position. As the push-out cam rotates and pushes out the vertically movable stopper into the product path, the push-out cam follows the cam surface of the fixed-side lift-limiting cam and is gradually pushed down. The stopper on the dispensing side, which is engaged with the extrusion cam at the engaging portion, descends together with the extrusion cam, and the second product, whose descent is regulated by the stopper, also gradually descends. At the position where it is gradually lowered by the elevation regulating cam surface, the push-out of the stopper by the push-out cam is released, and the second opening and the product above it fall onto the pedestal which has returned to the closed position. do. Therefore, strike,
, , Xll- is lowered than the starting level of the descending F regulation, the extrusion by the extrusion cam is canceled, and the falling distance of the second product can be reduced by the amount of descent of the stopper.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4. Components having the same functions as those in FIG. 5 showing the conventional example will be described with the same reference numerals.

In the product dispensing device of the present invention, the stopper 9.10 has a shaft 13.14 with both ends formed in a long hole I formed in the stocker body.
5 and is supported slidably in the vertical direction. Here, the drive shaft 6 has a square cross section, and the stopper 9. Extrusion cam I that pushes out IO! A rectangular hole 16 whose length is slightly longer than the drive shaft 6 is bored in the hole 16, and the pushing cam II, which is passed through the drive shaft 6, rotates with the rotation of the drive shaft 6 and moves in the vertical direction. It is slidable.

An engaging portion 17 that engages with the stoppers 9 and 10 is formed at the upper end of the extrusion cam II. Extrusion cam I
Elevation regulating cams 19 having cam surfaces 18 shaped as shown in FIG. 4 are fixedly provided on both sides of the stocker body.

Furthermore, here, a compression spring 20 is provided as a biasing means for biasing the pushing cam 11 upward.

Next, the shape of the cam surface 18 for regulating elevation and the product dispensing operation will be explained. FIG. 1 shows the standby state. The pushing cam 11 comes into contact with the upper end position of the cam surface 18 and stops the stopper 9.
．． lO is stopped at the upper limit position Lu.

When dispensing products, while the cam plate 5 rotates 90'' to the state shown in FIG. 6(b), the push-out cam 11 also rotates, and the stopper 9, which can be raised and lowered, is moved into the product passage as shown in FIG. It pushes out and restricts the descent of the second product 2.As the pushing cam 11 rotates, the pushing cam If
is gradually pushed down by the cam surface I8, and the drive shaft 6
is pushed down to the position shown by the solid line in FIG. 4, and the station 9 also gradually descends to the position shown by the solid line in FIG. Therefore, the second product whose descent is being regulated by the stopper 9 also gradually descends.

In the process of the cam plate 5 returning from FIG. 6(b) to FIG. 6(a), the stopper 9 is at the lowered position Ld as shown in FIG. 3, and the pushing out of the stopper 9 by the pushing cam 11 is released. Then, the second and higher products fall onto the first pedestal 1 which has returned to the closed position.

At this time, the stopper 9 is released from the load of the second and upper products, and the pushing cam 11 is pushed up by the compression spring 20, and returns to the standby position.

In this way, the pushing by the pushing cam 11 is released at the position where the stopper 9 has fallen below the start level of the downward regulation, and the falling distance of the second product I2 can be reduced by the amount by which the stopper 9 falls.

In the above embodiment, the case where the cam plate 5 rotates from the position shown in FIG. 6(a) to (b), reverses, and rotates to the position shown in FIG. 6(b) will be explained as an example. However, this is shown in Figure 6 (
After rotating from a) to (b), it further rotates in the same direction until it reaches Fig. 6 (
If the cam plate 5 is to be rotated to the position shown in C), it can be similarly achieved by changing the shape of the cam surface 8.

Effects of the Invention As described above, according to the present invention, the push-out cam that supports the stopper that regulates the descent of the second product from the bottom so as to be slidable in the vertical direction and that pushes out the stopper is attached to the first product.
The cam plate that regulates the rotation of the second pedestal is configured to be able to slide vertically on the opening/closing drive shaft, and a retaining portion that engages with the dispensing side stopper is provided at the upper end of the extruding cam. ,
Elevation regulating cams are provided on both sides of the extrusion cam and have cam surfaces that engage with the extrusion cam and gradually push the extrusion cam downward as it rotates from the standby position to the product delivery position. Since a biasing means is provided that biases the cam in the direction of contacting the cam surface of the elevation regulating cam, the pushing by the pushing cam is released at a position lower than the starting level of descending regulation by the stopper.
Since the falling distance of the second product can be reduced by the amount of descent of the stopper and the impact force acting on the second product can be reduced, the product can be protected from damage.

[Brief explanation of drawings]

1 to 3 are longitudinal sectional views showing the product dispensing process of an embodiment of the product dispensing device of the present invention, FIG. 4 is a partially cutaway view of FIG. 5 and 7 are longitudinal sectional views showing the product dispensing process of a conventional product dispensing device, and FIG. 6 is a cross-sectional view showing the product dispensing process of the same device.
It is an arrow view. 1.2... 1st. Second cradle, 5... cam plate, 6...
... Drive shaft, 9.10... Stopper, 11... Extrusion cam, 13.14... Shaft, 15... Long hole,
16...hole, 17...engaging portion, I8...cam surface,
19... Cam for regulating elevation, 20... Compression spring.

Claims (1)

[Claims] 1. First and second side plates are arranged in the center of the stocker body, and the interior of the stocker body is divided into a first column product stacking path, a drive shaft insertion portion, and a second column product stacking path. At the lower openings of the first and second column product stacking paths, there are first and second receivers, one end of which is rotatably supported on the drive shaft insertion portion side, and the other end of which protrudes into the product path. A stand is provided, and the downward rotation of the first and second cradle is controlled by attaching it to the drive shaft inserted vertically through the drive shaft insertion part.
It is supported and regulated by a semicircular cam plate that rotates horizontally at the lower position of the cradle, and the cam plate is rotated by a predetermined angle to prevent one of the first and second cradle from coming into contact with the cam plate. Before release, the stopper is pushed out into the product passage by a push-out cam rotationally driven by the drive shaft to restrict the descent of the second product from the bottom on the dispensing side cradle, and the lowest product is dispensed. The stopper is configured to be slidable in the vertical direction, the extrusion cam is configured to be slidable in the vertical direction with respect to the drive shaft, and a stopper on the product dispensing side is provided at the upper end of the extrusion cam. cam surfaces are formed on both sides of the pushing cam to engage with the pushing cam and gradually push the pushing cam downward as it rotates from the standby position to the product dispensing position. A product dispensing device that is provided with a lift regulating cam and a biasing means for urging the pushing cam in a direction in which it comes into contact with a cam surface of the lift regulating cam.