JPH0123834B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vending machine that stacks products in a line and stores them in a stocker, and particularly to a vending machine that handles large bottles as products.

BACKGROUND ART Conventionally, in this type of vending machine that handles bottled products, the product delivery device has been constructed as disclosed in Japanese Patent Application Laid-open No. 76200/1983. FIG. 13 shows the delivery process of this conventional product delivery device. At the time of non-payout, the first
The products 61a, 61b, etc. stacked in series on the stocker 60 as shown in FIG. The tip of the lever 64 begins to rotate downward around the shaft 65, and all the products inside the stocker 60 begin to gradually fall, and then the support lever 62 stands up, as shown in Fig. 13c.
With the product 61b next to the lowest product 61a and the products above this being restricted from falling, the delivery lever 64 is further opened to release the product 61a.
will be paid out gradually.

Problems to be Solved by the Invention In such a conventional configuration, it is possible to weaken the impact when the dispensed bottle product arrives at the product outlet, but the support lever pivoted from the same side as the delivery lever 64 Since the next product 61b after the delivered product 61a is stopped by the bottle 62, there is a drawback that the product in the lowest bottle is easily damaged.

In other words, while the lowest product 61a is passing in front of the support lever 62 as shown in FIG. 13b after the start of dispensing, the second product 61b from the bottom cannot be supported by the support lever 62, Product 61a has a second product 61 over a long period of time.
Since the product 61a is supported by the side wall 63 and the delivery lever 64 with the full load of the product 61a and products above it being applied, the product 61a is damaged. This drawback can cause the film packaging to tear if the surface of the bottled product is covered with a film packaging, and this is especially true if the product handled is a large bottle and the total load applied to the lowest product is large. The problem becomes more serious.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vending machine for large bottles that can support the next product at the bottom at an early stage after the start of dispensing and perform dispensing without applying a large load to the product at the bottom. shall be.

Means for Solving the Problems The large bottle vending machine of the present invention includes a stocker with an open bottom that is surrounded by a front plate, a rear plate, and both side plates and stores large bottles stacked in a row. When a large bottle is not being dispensed, the tip is located at the center of the stocker and supports the bottom of the lowermost large bottle, and the base end is pivoted near one side plate of the stocker. A rolling shelf is provided,
The base end is pivoted near the other side plate of the stocker, and the distal end is disposed close to the one side plate of the stocker, and when on standby, the distal end is pivoted near the pivot shaft of the rolling shelf. A stop shelf located above is provided, a first cam roller protruding from the rolling shelf contacts the cam surface to restrict downward rotation of the tip of the rolling shelf, and a first cam protruding from the stop shelf is provided. A second cam is provided in which the second cam roller contacts the cam surface and determines the amount of upward rotation of the tip of the stop shelf, and the second cam engages with a drive pin protruding from the first cam, which is rotationally driven as the product is dispensed. A driving means is provided which forms a long hole in the second cam and rotates the second cam in a direction that rotates the stop shelf upward later than the first cam, and the drive means rotates the second cam in a direction that rotates the stop shelf upward, and the drive means rotates the second cam in a direction that causes the stop shelf to rotate upwardly. A guide plate is provided to support the second large bottle from the bottom with the tip of the stop shelf which is disposed at an upper position and has been rotated upward, and the lowermost large bottle is supported by the rolling shelf. While supporting the stocker, it is gradually lowered to the lower end of the stocker and dropped onto the chute leading to the product removal port, and the stop shelf is then lowered to the support plate attached between the pair of side plates and the tips of the side plates. The supporting plate portion is arranged above the base end of the rolling shelf, and the side plate portions are arranged in the space between the front plate of the stocker and the rolling shelf and between the rear plate of the stocker and the rolling shelf. The second cam is configured such that the large bottle dispensed while being supported by the rolling shelf passes between the side plates of the stop shelf, and the second cam has a rolling shelf. The first wheel rotates in the direction of raising the
A stop device is provided that engages with the drive pin of the cam to restrict the free rotation of the stop shelf of the second cam in the direction of downward rotation, and returns the second cam at the same speed as the first cam. Features.

Function According to this configuration, the rolling shelf is gradually lowered by the rotationally driven first cam, thereby moving all the large bottles vertically stacked in the stocker downward. During this process, when the drive pin reaches the end of the elongated hole, the second cam rotates as the first cam rotates, and the stop shelf rises. As the stop shelf rises, the product passage width gradually narrows, and the second large bottle from the bottom is immediately supported by the tip of the stop shelf and the side plate of the stocker. With the second product from the bottom being supported in this manner, the rolling shelf rotates further downward, and only the bottom large bottle is dispensed.

After the lowermost large bottle is dispensed, the rolling shelf supporting the second product in the raised position slowly descends and returns to its original position while its return speed is controlled by the stop device. do.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 11.

1 and 2 show the overall configuration of a vending machine according to the present invention. 1 is the vending machine body, 2 is the front door, 3
There are five stockers arranged on the shelf 4 of the vending machine main body 1, and each stocker 3 stores large bottles 5 as sales products stacked in a vertical line. Each stocker 3 has its upper and lower surfaces open, and a notch 6 is formed by cutting out the upper part of the front plate 3a and the upper part of the front side of the side plates 3b and 3c. The stocker 3 is replenished with large bottles 5 through the notch 6.

At the bottom of each stocker 3, a product dispensing device as shown in FIGS. 3 to 5 is provided. As shown in FIG. 5, a drive shaft 7 passing through a front plate 3a and a partition plate 8 disposed behind the front plate 3a, a rear plate 3d and a partition disposed in front of the rear plate 3d. A driven shaft 9 passing through the plate 10 is provided.
Here, the drive shaft 7 and the driven shaft 9 are arranged concentrically. Reference numeral 11 indicates bearings for both shafts 7 and 9. 12 is a boss fixed to each shaft 7, 9 with a pin 13;
Reference numeral 14 denotes a first cam fixed to each boss 12, and as shown in FIG. A circular arc is continuously formed with the center at point f from point c to point d, g at the center from point c to point d, and again centered at point f from point d to point e. 16
is a support shaft which is disposed along one side plate 3b at a position above both shafts 7 and 9, and whose both ends are rotatably supported by the front and rear plates 3a and 3d, on which a rolling shelf 17 is attached. It is inserted so that it can rotate freely. As shown in FIG. 5, the rolling shelf 17 includes a pair of side plate parts 17a whose proximal ends are rotatably supported by the support shaft 16, and a support plate part 17b disposed between the both side plate parts 17a. 17a, and first cam rollers 18 respectively disposed on the first cam 17a, and the first cam rollers 18 are in contact with the cam surface 15 of the first cam 14. As shown in FIG. 3, an interlocking shaft 19 is supported by a bearing 20 disposed on the outer surface of the other side plate 3c of the stocker 3, and this interlocking shaft 19 has a pair of side plate portions 21a and a pair of side plate portions 21a on both sides thereof. A stop shelf 21 consisting of a support plate portion 21b disposed between the plate portions 21a is rotatably inserted. The support plate portion 21b of the stop shelf 21 is located near one side plate 3a so as not to obstruct the lowering of the large bottle 5 at the lowermost end. Reference numeral 22 denotes a second cam rotatably disposed on the small diameter portion of each of the bosses 12, 12, and as shown in FIG. 2
3a and a small diameter portion 23b. A second cam roller 24 is in contact with the cam surface 23.
The second cam 22 has a long hole 25 centered around the shafts 7 and 9.
are formed, and each opposing first cam 14, 14
A driving pin 26 protruding from each elongated hole 2
It is embedded in 5. 27 is the front plate 3 of Stockka 3
28 is the output shaft 2 of the motor 27 as shown in FIGS. 4 and 5.
A disc 7a is fixed to the disc, 29 is a pin protruding from the outer circumferential edge of the disc 28, and 30 is a through hole formed at the upper end, which rotatably fits into the pin 29, and is formed at the lower end. 32 is a notched gear fixed to the drive shaft 7 with a pin 33, which meshes with a rack 34 formed in the window 31 of the shaft 30. ing. 35 is a first large gear coaxial with the drive shaft 7 fixed to the notched gear 32; 36 is a driven shaft 9;
a second large tooth shaft, 38, 39, which is fixed with a pin 37;
As shown in FIGS. 3 and 5, these are small gears that are fixed to both ends of the interlocking shaft 19 and mesh with the first or second large gears 35, 36, and when the drive motor 27 rotates, the drive shaft 7 and the driven shaft 9 rotate integrally. A trapezoidal guide plate 40 is fixed to the other side plate 3c at a position slightly above the stop shelf 21, and serves to align the large bottles 5 toward the one side plate 3b. 1 and 2, 41 is a guide chute for the large bottle 5, 42 is a product outlet, 43 is an outer gate provided at the product outlet 42, 44 is an inner gate for heat insulation, and 45 is a stocker. Rear plate 3 in 3
This is a guide plate arranged along d.

In addition, the support plate portion 1 of the stopper shelf 17
A stop device 46 is provided to prevent 7b from falling all at once from the raised position. This is the first
As shown in FIG. 0, a support shaft 47 protrudes near the corner of the large diameter portion 23a of the second cam 22, and a central through hole is rotatably fitted onto the support shaft 47, and one end An engaging portion 48a formed at one end can be freely engaged and disengaged from the small diameter portion 26a of the drive pin 26, and a protrusion 48b formed at the other end can contact and separate from the side plate 3c of the stocker 3. A freely movable L-shaped stopper 48 is fitted onto the support shaft 47, and one end 50a is fitted into the hole 49 of the second cam 22, and the other end 50b is engaged with one end of the L-shaped stopper 48. The spring 50 urges the L-shaped stopper 48 downward in the direction of arrow I, and the L-shaped stopper 48 is screwed into the threaded portion 47a of the support shaft 47 to force the L-shaped stopper 48 downward in the direction of arrow I.
Nut 51 that prevents the spring 5 from coming out of the
The stopper pin 52 prevents the L-shaped stopper 48 from rotating more than a predetermined amount against zero.

The operation of the above configuration will be explained based on FIG. 11. In Figure 11, A is rolling shield 17
, and b indicate the operations of the stop shield 21, respectively. In the following explanation, the bottom large bottle 5 will be referred to as 5A, the second and third bottles from the bottom will be referred to as 5B, 5C, etc.
It will be explained as follows.

Before dispensing the product, as shown in FIG. 6, the bottom large bottle 5A hits the support plate portion 17b of the rolling shelf 17 and one side plate 3b of the stocker 3 to prevent it from falling. . Further, in this state, the drive pin 26 is located at the starting end within the elongated hole 25. Further, the protrusion 48b of the L-shaped stopper 48 of the stop device 46 is in contact with the side plate 3c, so that the engaging portion 48a is separated from the small diameter portion 26a of the drive pin 26 against the force of the spring 50.

When dispensing products, the drive motor 27 is activated to rotate the disk 28 in the direction of arrow A as shown in FIG. Then, the pin 29 of the disc 28 rises and the crankshaft 30 moves in the direction of arrow C.
The drive shaft 7 is rotated in the direction of arrow E via the notched gear 32, and the first large gear 35, small gear 38,
The driven shaft 9 also rotates integrally with the drive shaft 7 in the same direction E at the same speed via the interlocking shaft 19, small gear 39, and second large gear 36. As a result, both first cams 14 also rotate in the same direction E, and when both first cams 14 have rotated 15 degrees, both first cam rollers 18 pass point b on the cam surface 15, and the rolling shelf 17 begins to descend. , large bottle 5 on rolling shelf 17
A, 5B... also begin to descend. In addition, in this case, L
The engaging portion 48a of the letter-shaped stopper 48 is the small diameter portion 26a.
Since the drive pin 26 is spaced apart from the drive pin 26, the drive pin 26 smoothly moves in the direction of the arrow E.

When both first cams 14 rotate by 55 degrees, the drive pin 2
6 corresponds to the end of the elongated hole 25, resulting in the state shown in FIG. At this time, the protrusion 48 of the L-shaped stopper 48
b separates from the side plate 3c, the stopper 48 rotates in the direction of arrow I and hits the stopper pin 52, but since the drive pin 26 has already moved, the engaging portion 48a does not engage with the small diameter portion 26a. . In this state, the lowermost large bottle 5A is connected to the support plate portion 17b of the rolling shelf 17 and the stocker 3.
, and has not fallen yet at this stage. However, at this time, an interval α is formed between the lowermost large bottle 5A and one side plate 3b of the stocker 3, which is sufficient for the support plate portion 21b of the stop shelf 21 to pass upward.

Next, when both first cams 14 further rotate in the direction of arrow E, both second cams 22 also rotate in the same direction E by the drive pin 26, and when both first cams 14 have rotated 62 degrees, both The second cam roller 24 rides on the large diameter portion 23a from above the small diameter portion 23b of both second cams 22, thereby causing the stop shelf 21 to rotate in the direction of arrow G around the interlocking shaft 19, and to move to the second position from the bottom. He is in a posture of waiting for the large bottle 5B.

Next, as both first cams 14 further rotate in the direction of arrow E, the distance β between the support plate portion 17b of the rolling shelf 17 and the other side plate 3c of the stocker 3 gradually increases. Each large bottle 5A,
5B... is slowly descending. Then, the second large bottle 5B from the bottom hits the support plate portion 21b of the stop shelf 21 and the guide plate 40, and this second large bottle 5B from the bottom is prevented from descending any further. Thereafter, as the interval β increases, only the lowermost large bottle 5A descends, and when the interval β becomes larger than the outer diameter of the large bottle 5, the lowermost large bottle 5A falls into the chute 41 and is delivered to the product outlet 42. In this case, the large bottle 5A does not suddenly fall from the stocker 3, but is gradually lowered to the lower end of the stocker 3 while being supported by the rolling shelf 17, and then is dropped onto the chute 41. By keeping the chute 41 close to the stocker 3, the impact when it falls can be minimized and the large bottle 5 will not be destroyed.

Next, both first cams 14 are moved as shown in FIG.
When rotated by 87 degrees, the pin 29 of the disk 28 turns downward, causing the drive shaft 7, driven shaft 9, both first cams 14, and both second cams 22 to rotate in the direction of arrow F. Then, the rolling shelf 17 begins to rotate in the direction of arrow H, and both first cams 14 rotate by 72 degrees.
That is, when returning to the initial state at 15 degrees, both first cam rollers 18 pass point b on the cam surface 15. At this time, both second cams 22 do not rotate until the drive pin 26 rotates in the direction of arrow F and hits the starting end of the elongated hole 25, so the second cams 22 lag behind both first cams 14 by that amount and rotate in the direction of arrow F. It will rotate in the direction. Therefore, the stop shelf 21 is in the state shown in FIG.
B, that is, in this state, it supports the large bottle 5B, which is the lowest end.

When both first cams 14 and both second cams 22 further rotate a little in the direction of arrow F, as shown in FIG. By rotating the second cam roller 24 in this direction, the second cam roller 24 attempts to descend the slope 53 between the large diameter portion 23a and the small diameter portion 23b at once. If the second cam roller 24 descends at once in this way, the stop shelf 21 also descends at once, and the entire weight of the large bottles 5 (up to 12 bottles) on the stop shelf 21 is transferred to the support plate portion 21b of the stop shelf 21. The impact may not only generate noise but also cause the large bottle 5 to be destroyed. However, according to the configuration of this embodiment,
Between the state shown in FIG. 8 and the state shown in FIG. 9, the small diameter portion 26a of the drive pin 26 passes under the engaging portion 48a of the L-shaped stopper 48 against the spring 50, and As shown in Fig. 9, the engaging part 4
8a engages with the small diameter portion 26a, the second cam roller 24 reaches the end of the large diameter portion 23a as described above and attempts to rotate the second cam 22 in the direction of arrow F, but this second cam 22 The second cam roller 24 does not rotate in the direction of arrow F, and the second cam roller 24 does not rotate in the direction of arrow F.
As 4 and 22 rotate in the direction of arrow F, the slope 5
3. You will descend slowly from the top. Accordingly, the stop shelf 21 also slowly descends, and the bottom surface of the large bottle 5B, which is the second from the bottom supported by the support plate portion 21b of the stop shelf 21, that is, the lowest in this state, reaches the bottom of the rolling shelf 17. It is supported on the support plate portion 17b.

Next, when both the first and second cams 14 and 22 rotate in the direction of arrow F, the projection 48 of the L-shaped stopper 48
b hits the side plate 3c, this stopper 48 rotates in the opposite direction of arrow I against the spring 50, and the engaging portion 48
a is removed from the small diameter portion 26a, resulting in the state shown in FIG. 6 before product delivery.

Effects of the Invention As described above, according to the present invention, when a large bottle is not dispensed in the lower part of the stocker, the tip part is located in the center of the stocker and supports the bottom surface of the lowermost large bottle, and the base end part is a rolling shelf pivotally supported near one side plate of the stocker, and a tip portion disposed close to the one side plate of the stocker is positioned above the pivot axis of the rolling shelf when on standby. In conjunction with the downward drive of the rolling shelf by the first cam, the tip is driven by the second cam to rise within the stocker, and with this rise, the stocker moves upward. A stop shelf is provided that gradually narrows the width of the product passage formed between the other side plate, and the large bottle at the bottom is gradually lowered to the bottom of the stocker while being supported by the rolling shelf.
With the second large bottle from the bottom supported between the stop shelf and the side plate at the other end of the stocker, the rolling shelf is further lowered to drop the bottom large bottle onto the chute leading to the product outlet. As a result, the second large bottle from the bottom can be supported by the stop shelf at an early stage after the start of dispensing without waiting for the lowest large bottle to pass, and the stop shelf can act on the large bottle being dispensed. Since the period of a large load (the total load of the remaining large bottles) is shortened compared to the conventional case, it is possible to improve the situation in which the large bottles that are dispensed are damaged. Therefore, even if the product is a large bottle whose surface is wrapped in a film wrapper, it can be dispensed without tearing the film wrapper.

Furthermore, the second cam engages with the drive pin of the first cam that rotates in the direction of raising the rolling shelf, thereby restricting free rotation of the second cam in the direction of rotating the stop shelf downward; Second
By installing a stop device that returns the cam at the same speed as the first cam, it is possible to prevent the tip of the stop shelf from falling all at once from the raised position, and the rolling shelf can be raised after dispensing the large bottle at the bottom end. Then, when receiving the second large bottle from the bottom (lowest in this state) supported by the stop shelf, the large bottle does not drop shockingly onto the tip of the rolling shelf, and the bottle is rotated. It descends and is supported by the tip of the rolling shelf. Therefore, during this time, almost no noise is generated, and the large bottle is not destroyed.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a schematic vertical sectional view of a vending machine, Fig. 2 is a schematic front view of the vending machine main body, and Fig. 3 is a partially cutaway perspective view of a stocker. Figure 4 is a partially cutaway front view of the lower part of the stocker (the cutout line is along the - line in Figure 5), Figure 5 is a longitudinal sectional view of the lower part, and Figures 6 to 9 show the operating state. Fig. 10 is an exploded perspective view of the main parts, Fig. 11 is an operation timing diagram, and Fig. 12 shows the support structure of the rolling shelf and stop shelf. FIG. 3 is a cross-sectional view taken along the - line in FIG. 3 for explanation, and FIG. 13 is an explanatory diagram of a conventional vending machine. 1... Vending machine main body, 3... Stotsuka, 5...
...Large bottle, 6...Notch, 7...Drive shaft, 9...
Driven shaft, 14...First cam, 15...Cam surface, 1
7... Rolling shelf, 17b... Support plate portion, 18... First cam roller, 19... Interlocking shaft,
21... Stop shelf, 21b... Support plate portion, 22... Second cam, 23... Cam surface, 24...
... Second cam roller, 25 ... Long hole, 26 ... Drive pin, 27 ... Motor, 30 ... Crankshaft, 32 ... Notch gear, 34 ... Rack, 3
5, 36...Large gear, 38,39...Small gear, 4
1...Guidance chute, 46...Stop device, 4
8... L-shaped stopper, 50... Spring, 52...
Stotupapin.

Claims (1)

[Claims] 1 A stocker is provided with an open bottom that is surrounded by a front plate, a rear plate, and both side plates and stores large bottles stacked in a row, and the tip of the large bottle is placed in the center of the stocker when the large bottles are not being dispensed at the bottom of the stocker. A rolling shelf is provided that supports the bottom surface of the lowermost large bottle and whose base end is pivoted near one side plate of the stocker, and whose base end is located near the other side plate of the stocker. A stop shelf is provided which is pivoted at a nearby position and whose tip is disposed close to the one side plate of the stocker, and whose tip is located above the pivot axis of the rolling shelf when on standby. A first cam roller protruding from the stop shelf contacts the cam surface to restrict the downward rotation of the tip of the rolling shelf, and a second cam roller protruding from the stop shelf contacts the cam surface to prevent the stop shelf from rotating downward. A second cam is provided to determine the amount of upward rotation of the tip, and a long hole is formed in the second cam to engage with a drive pin protruding from the first cam, which is rotationally driven as the product is dispensed. A driving means is provided for rotating the second cam later than the first cam in a direction to rotate the stop shelf upward, and the second cam is disposed inside the other side plate of the stocker at a position above the stop shelf and rotates upward. A guide plate is provided to support the second large bottle from the bottom at the tip of the stop shelf, and the lowermost large bottle is gradually lowered to the bottom end of the stock shelf while being supported by the rolling shelf. The stop shelf is made up of a pair of side plates and a support plate attached between the ends of the side plates, and the support plate is attached to the rolling shelf. disposed above the proximal end, and configured so that both side plate portions pass through the space between the front plate of the stocker and the rolling shelf and between the rear plate of the stocker and the rolling shelf as the stocker rotates; The large bottle being dispensed while being supported by the rolling shelf passes between the side plates of the stop shelf, and the second cam is driven by the first cam that rotates in a direction to raise the rolling shelf. Automatic sales of large bottles equipped with a stop device that engages with a pin to restrict the free rotation of the stop shelf of the second cam in the direction of downward rotation, and returns the second cam at the same speed as the first cam. Machine.