JPH06314370A - Device and method for pushing article out of automatic vending machine - Google Patents

Abstract

PURPOSE:To reduce the thickness of the automatic vending machine which has plural columns without decreasing its storage space and to enable an article to be taken out without being damaged. CONSTITUTION:A front and a rear column are provided in an article storage part, and articles are stacked in each column. A pusher 40 for the front column and a pusher for the rear column which operate associatively with a slider 44 for a 1st Napier screw 42 and a 2nd Napier screw are intruded into the article storage part through the opening of a top surface plate. The pusher 40 for the front column after pushing an article in the front column out of a discharge opening moves back under the article, and then moves up and returns to the initial position at the time of article pushing-out operation. The pusher for the rear column after pushing an article in the rear column out to the front column pushes a next article in the rear column back a little and then moves back below the article to move up and return to the initial position at the time of the article pushing-out operation. While the pusher 41 for the rear column performs pushing-out cyclic movement once, the pusher 40 for the front column performs pushing-out cyclic movement twice.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product extruding device for a vending machine, and more particularly to a product extruding device for extruding products in one direction, and for extruding products in front and rear two columns one by one from the bottom. Regarding

[0002]

2. Description of the Related Art In an automatic vending machine for various products (hereinafter sometimes referred to as a vending machine), a plurality of columns are provided to store a large number of products in a limited space inside the vending machine.
Many are configured to load multiple products in each column. In a vending machine with multiple columns like this,
There is a problem that the extrusion mechanism for taking out the product becomes complicated and the vending machine becomes large. However, recently, there has been a problem that the vending machine sticks out on the road, and there is an increasing demand for a thin vending machine to cope with this problem. In this case, the vending machine is required to make the vending machine thin and not reduce the number of products stored in the vending machine.

Now, a conventional bidirectional product pushing device for a vending machine having a double column will be described with reference to FIGS.

9 to 11 show a product storage unit 1 in a vending machine, and a storage unit for a product 6 having a first column 4 and a second column 5 therein is constituted by a lower frame 2 and a standing frame 3. ing. A product support surface 2a is formed by the lower frame 2, and the product support surface 2a is used to mount the products 6 loaded in the first column 4 and the second column 5.
Is supported.

On the lower end surface side of the product storage unit 1, product outlets 7 and 8 are provided corresponding to the first and second columns 4 and 5, respectively.
Each of the products 6 in the first column 4 and the second column 5 is pushed out to the respective discharge ports 7 and 8 by the pusher 9 which laterally reciprocates on the product support surface 2a, and the shooter 7a. , 8a to one commodity take-out port (not shown).

The drive device 10 for the pusher 9 is shown in FIG.
It is configured as shown in FIG. That is, the side walls 12 stand up from the bottom plate 11 at a predetermined distance, the product support surfaces 2a are formed on the upper parts of both side walls 12, and the pusher 9 reciprocates laterally along the product support surfaces 2a. It is supported freely. Napier screw 1 on the lower side of the product support surface 2a
4 are arranged, and both ends of this Napier screw 14 are pivotally supported by both side walls 12. The end of the napier screw 14 on the drive side is interlocked with the motor 16 in the speed reduction mechanism portion 15 arranged outside the one side wall 12.

A slider 17 is fitted to the napier screw 14, and the slider 17 and the pusher 9 are
The connecting portion 1 located in the groove 18 formed in the product support surface 2a
9 (shown in FIGS. 9 to 11). Therefore, when the napier screw 14 is continuously rotated in the same direction by the motor 16, the engaging portions in the slider 17 at both ends of the napier screw 14 are changed from one screw groove of the left turning and the right turning of the napier screw 14 to the other screw groove. The transfer slider 16 repeats a reciprocating linear motion in the lateral direction. This allows the pusher 9 to move laterally integrally with the slider 17.

The pusher 9 is provided below the thickness of the product 6, and when the pusher 9 moves left and right, the products 6 in the first column 4 and the second column 5 undergo the process shown in FIGS. 9 to 11.
Is extruded from the outlets 7 and 8 on both sides. In each figure, the products 6 loaded in the first column 4 are given even serial numbers, and the products 6 loaded in the second column 5 are given odd serial numbers.

FIG. 9 shows a state where the pusher 9 is on standby on the right side of the product storage unit 1, that is, in the first column 4. In this state, the pusher 9 moves to the left to push out the product 6 in the second column 5 to the discharge port 8, and the pusher 9 stands by at this right position. Subsequently, the pusher 9 moves to the right to push out the product 6 in the first column 4 from the discharge port 7.

The vending machine having the above double column is provided with product outlets 7 and 8 before and after the vending machine and a shooter 7 following the outlets.
a, 8a, these two shooters 7a,
The space of 8a is required, which is an obstacle to making the vending machine thinner.

On the other hand, an extrusion device as shown in FIG. 13 is considered to improve the above-mentioned drawbacks. This extrusion device has a first column 23 and a second column 24 in a product storage section 22 formed by a support surface 20 and a side wall 21, and a product 6 is loaded in each column.
A product outlet 25 is formed on one side of the lower portion of the product storage unit 22.

At the lower part of the support surface 20, a chain 28 is bridged between the drive side and driven side sprockets 26 and 27. A pusher 29 is attached to the chain 28, and the pusher 29 is formed on the support surface 20. It has entered the product storage unit 22 through the slit 20a. A motor 31 is interlockingly connected to the drive-side sprocket 26 via a reduction gear mechanism 30.

According to the above-described product pushing device, the product discharge port 25 is at one place, and when the pusher 29 is moved by the chain 28, the pusher 29 moves in the product 6 in the first column 23 and in the second column 24. The product 6 can be sequentially extruded from the outlet 25. In this product extrusion device, the product outlet 25 and the shooter (not shown) are
Although it is an advantage in that the vending machine is thin, the product 6 in the second column 24 pushes the product 6 in the first column 23, so that the product is damaged or cannot be smoothly pushed out. There is a problem that a case occurs and the number of products stacked is limited.

[0014]

As described above, in the conventional double-column type vending machine, there are a plurality of product outlets, which makes it difficult to reduce the thickness of the vending machine. There is a problem in reducing the thickness of the vending machine without reducing the storage amount of the product, such as the problem that the product pushes out the product when the number is set to one.

An object of the present invention is to provide an extruder for an automatic vending machine which solves the above problems.

[0016]

In order to achieve the above object, the present invention has a front column and a rear column in a product storage section,
Before pushing the products in the front column to the discharge port in the product pushing device of the vending machine that pushes the products loaded in each column one by one from the bottom product to the discharge port in the order of the front column and the rear column It is equipped with a column pusher and a rear column pusher that pushes the products in the rear column to the front column.The front column pusher and the rear column pusher respectively push the products in the front column and the products in the rear column. After that, the tip of each pusher is connected to the drive mechanism so as to be able to return to the initial push-out position of the product by passing under the lowermost product in each column.

The drive mechanism is provided with a mechanism for retracting the rear column pusher at the same height as when the commodity is pushed out in the initial stage of backward movement after the rear column pusher pushes the commodity in the rear column to the front column. It is characterized by

The drive mechanism is constructed by screwing sliders on two screw shafts arranged side by side, and the front column pusher and the rear column pusher are movably connected to the sliders on the screw shafts, respectively. It is preferable to urge it toward the product storage section via the means.

The front column pusher is rotatably supported on one slider via a support shaft so as to be rotatable at a predetermined angle, and the rear column pusher is mounted on the other slider in a direction orthogonal to the axis of the screw shaft. And a lock mechanism that is movably supported by the lock operating means and the lock releasing means that are provided on the moving path along the screw shaft.

The present invention also has a front column and a rear column in the product storage section, and the products loaded in each column are automatically sold by pushing out the discharge products one by one from the bottom product in the order of the front column and the rear column. In the product extruding method of the machine, the pusher for the front column for extruding the product of the front column to the discharge port and the pusher for the rear column for extruding the product of the rear column to the front column each have a thread groove of the same pitch or a different pitch.
It is connected to a slider that is screwed onto a Napier screw of a book,
The pushers for the front column push out the products in the front column to the discharge port, and the pushers for the back column push the products in the back column to the front column for the first column and the pushers for the front column. The second step in which the pusher retracts the lower side of the product in the front column, and the rear column pusher has the same posture as when pushing out the product while the front column pusher retracts the lower side of the product in the front column. The third step of retracting the product in the rear column by retreating a predetermined distance with, forming a gap between the product in the front column and the product in the rear column, and then descending and retracting the lower side of the product, The fourth column pusher retracts while the rear column pusher is retracting, then returns to the initial position with a gap, and then pushes back the next product and then descends to retreat the lower side of the product. And for the front column Wherein the Fischer and rear column for pusher comprising a fifth step of upward return substantially simultaneously items in each column to be the initial position extrusion.

[0021]

According to the present invention, since the product storage section has the front column and the rear column and the single outlet, the vending machine can be made thin without reducing the product storage amount. Moreover,
Since the products stored in each column are pushed out by the pushers for the front column and the pushers for the rear column, the products in the rear column do not push out the products in the front column, and the products in each column are surely pushed out. And there is no damage.

[0022]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a plan view of a product pushing-out device of a vending machine according to an embodiment, and FIG. 2 is a side view showing an engagement relationship between the first napier screw and the front column product pushing-out pusher of FIG. 1, FIG. 4 is a side view showing the engagement relationship between the second napier screw of FIG. 1 and the pusher for pushing out the rear column product, and FIG. 5 is an interlocking gear mechanism diagram of the first napier screw and the second napier screw.

In each figure, the drive mechanism of the product pushing device is housed in a lower case 32 which constitutes the lower part of the vending machine. Then, the upper surface plate 32a of the lower case 32
Is the support surface of the product 6, and the top plate 32
The side wall 33 rises from the edge portion of a, and the inside of the side wall 33 serves as a product storage unit 34.

The product storage section 34 is divided into a front column 36 and a rear column 37. Further, an opening is formed at one side of the lower portion of the side wall 33, and this serves as a discharge port 38 for the product 6. In this embodiment, the discharge port 38 is the front column 36.
Is provided at only one position at the front end position of. Further, the product support surface 39 of the front column 36 is provided higher than the product support surface 39a of the rear column 37 in a height range smaller than the height (thickness) of the product 6, and the front column 36 and the rear column 36 are provided. 37
And are connected by a gently inclined surface 39b.

An opening 32b is formed in the upper plate 32a along the pushing direction of the product 6, and a front column pusher 40 and a rear column pusher 41 are opened from the inside of the lower case 32 through the opening 32b. It projects through the product storage portion 34 through the.

In the lower case 32, a first napier screw 42 and a second napier screw 43, which are schematically shown, are arranged in parallel, and the front column pusher 40 has the first napier screw 42.
The product 6 in the front column 36 is interlocked with the slider 44 that is screwed into the front column 36 and moves between the solid line and the chain double-dashed line in FIG.
Is extruded from the discharge port 38. The rear column pusher 41 is interlocked with a slider 45 screwed to the second Napier screw 43 and moves between the solid line and the chain double-dashed line in FIG. 2 to push the product 6 in the rear column 37 to the front column 36. put out.

To further explain, the support shafts 42a, 43a at both ends of the first napier screw 42 and the second napier screw 43 are supported by the side wall 32c at both ends of the lower case 32, and the gears 46, 47 are fixed to one support shaft. Each gear 46,
47 is configured to rotate in the same direction synchronously by a reduction gear mechanism 49 (shown in FIG. 5) housed in a gear case 48 at the end of the lower case 22. A motor 50 installed in the lower case 32 is linked to the reduction gear mechanism 49 via an output gear 50a.

The front column pusher 40 is bent in a substantially V shape, and has a bearing cylinder 51 at the base end thereof, and this bearing cylinder 51 projects from the slider 44 of the first Napier screw 42. Of the front column pusher 4 centered on the support shaft 52 by the spring 53 fitted to the support shaft 52 provided on the bearing member 44a and wound around the support shaft 52.
In FIG. 2, a weak counterclockwise rotational force is applied to 0.

Further, a stopper surface 51a is formed on the bearing cylinder 51 of the front column pusher 40, and this stopper surface 51a is a stopper surface 44b of the bearing plate 44a.
By engaging with, the spring-biased front column pressure 40 is prevented from rotating in the counterclockwise direction when its tip is positioned vertically.

According to the above configuration, the first napier screw 42
When the front column pusher 40 moves forward from the two-dot chain line in FIG. 2 to the solid line position, the vertical portion of the pusher 40 pushes the rear portion of the product 6 in the front column 36 and pushes it out from the discharge port 38. At this time, the two stopper surfaces 51a,
Since the 44b are engaged with each other, the front column pusher 40 can push out the product 6 without falling backward.

When the pusher 40 for the front column has moved to the position where the pushing out of the product 6 is completed (the position shown by the solid line in FIG. 2), the engaging portion of the slider 44 integral with this pusher 40 is the screw for turning the first napier screw 42 to the left and right. The groove moves from one of the grooves to the other groove, makes a U-turn, and the slider 44 moves backward. At this time, the front column pusher 40 hits the lower surface of the next product 6 that has dropped to the lowermost stage in the front column 36 and rotates clockwise around the support shaft 52 against the spring 53 and falls down. The tip of the pusher escapes to the lower side of the product 6 and the state of the dotted line in FIG.

The front column pusher 40 is retracted, and the tip of the pusher 40 is disengaged from the lower rear end of the product 6, so that the spring 5
By the force of 3, the front column pusher 40 is rotated counterclockwise to get up, and can be returned to the initial position posture in which the product 6 in the front column 36 is pushed out again. Front column pusher 40
When the first napier screw 42 is continuously rotated after retreating to the predetermined position, the engaging portion of the slider 44 moves from one screw groove of the left-right rotation to the other screw groove and can move forward again.

The rear column pusher 41 is movably attached to a slider 45 screwed onto the second Napier screw 43 in a direction orthogonal to the axis of the Napier screw, and is provided in the rear column 37 so as to be retractable. That is, the slider 4
A flat plate-shaped guide frame 55 is provided at one end of the guide frame 5, and the hook-shaped part 41c of the support portion 41a integrally provided with the rear column pusher 41 holds the guide frame 55. The face plate 32a is provided so as to be retractable in the product storage unit 34 through the opening 32b. A lower portion of the support portion 41 a is supported by a guide frame 73 provided on the slider 45 so as to be able to move up and down.

On the slider 45, a lever 56 for moving the rear column pusher 41 is pivotally supported by a support shaft 57 so as to be rotatable by a predetermined angle, and a groove 56a at the tip of the lever 56 supports the rear column pusher 41. It engages with a pin 58 protruding on the side surface of the portion 41a. A first coil spring is provided between a locking portion 60 provided integrally with the lever 56 and provided on a projecting portion 59 projecting to the opposite side of the lever tip with the support shaft 57 interposed therebetween, and an engaging hole 61 provided on the slider 45. 62
The first coil spring 62 urges the lever 56 to rotate in a counterclockwise direction with the support shaft 57 as a fulcrum so that the rear column pusher 41 is retracted from the inside of the rear column 37. .

On the other hand, the side wall 32d of the lower case 32 is partially cut out to raise the claw 63 inside the case, and the slider 45 moves left to the position shown by the solid line in FIG. 3 (reverse movement as seen in the pushing direction of the product). ) When doing,
Engages with the locking portion 60. By further moving the slider 45 to the left, the first coil spring 62 is stretched and the lever 56 is rotated clockwise in FIG. 3 about the support shaft 57 as a fulcrum, and the lever tip is moved from the position indicated by the chain double-dashed line in the figure. It is lifted to the position indicated by the solid line, and the rear column pusher 41 is pulled up accordingly.

A support shaft 65 is provided below the slider 45, and a rotation stopper 66 is pivotally supported on the support shaft 65. The rotation stopper 66 has an engaging corner portion 66a, a protrusion 66b, and an engaging hole 66c.
A second coil spring 68 is stretched between 6c and an engagement hole 67 formed in the slider 45.

The second coil spring 68 biases the rotation stopper 66 in the counterclockwise direction in FIG. 3 about the support shaft 65 as a fulcrum. The rear column pusher 41 is shown in FIG.
When it is lifted to the position indicated by the solid line in FIG.
A rotation stopper 66 is provided on the engagement step 41b on one side of the lower end of 1a.
Of the rear column pusher 41.
The downward movement is blocked (locked).

Therefore, when the slider 45 is moved to the right from the position shown by the solid line in FIG. 3 by the rotation of the second Napier screw 43, the rear column pusher 41 has the engaging step portion regardless of the action of the first coil spring 62. Since 41b and the engaging corner portion 66a are engaged with each other, it is possible to move to the right without moving downward and push the rear portion of the product 6 in the rear column 37 to push it to the front column 36.

In this way, the rotation of the second Napier screw 43 causes the slider 45 to move the product 6 in the rear column 37 to the front column 36.
After pushing in and moving to the position shown by the solid line in FIG. 4, it is retracted from this position by a predetermined distance at the same height position as when pushing,
The product 6 in the rear column 37 is slightly pushed back to form a gap 75 between the product 6 in the front column 36 and the rear column 37. At this time, the protrusion 66b of the rotation stopper 66 engages with the tip of the lock release lever 70. The lock release lever 70 is pivotally supported by one side wall 32d of the lower case 32 so as to be rotatable around a support shaft 71 at a predetermined angle, and is biased by a spring 72 in the clockwise direction in FIGS.

At the position indicated by the chain line in FIGS. 3 and 4, the projection 66b of the rotation stopper 66 that moves leftward integrally with the slider 45 hits the tip of the lock release lever 70, and the rotation stopper 66 resists the spring 72. By rotating the support shaft 65 clockwise by a predetermined angle, the engagement corner portion 66a is disengaged from the engagement step portion 41b of the rear column pusher 41 (unlocked). As a result, the lever 56 is rotated by the elastic force of the first coil spring 62, and the rear column pusher 41 is moved to the position shown in FIG.
To the position indicated by the chain line. While maintaining this lowered position, the rear column pusher 41 moves backward (moves leftward) together with the slider 45 through the lower side of the product 6 in the rear column 37.

When the rear column pusher 41 is retracted to a predetermined position, the locking portion 60 integral with the lever 56 is engaged with the claw 63.
While engaging the first coil spring 62 and stretching the first coil spring 62.
The lever 56 rotates around the center, and the rear column pusher 41 is lifted via the pin 58 to return upward to the initial position. Along with this, the engagement corner portion 66a of the rotation stopper 66 engages with the engagement step portion 41b to prevent downward movement of the rear column pusher 41 (lock operation).

Further, as shown in FIG. 5, in the gear box 48 provided at one end of the lower case 32,
Gear 4 provided on the shaft ends of the second Napier screws 42 and 43
Reference numerals 6 and 47 mesh with the intermediate gear 73. An output gear 50a of a motor 50 is interlocked with a gear 47 of the second napier screw 43 via a plurality of reduction gear mechanisms 49, and the motor 50 causes the first and second napier screws 42 and 43 to move in the same direction at the same speed. Can rotate.

According to the drive mechanism of this embodiment, the sliders 44 and 43 reciprocate by the continuous rotation of the first and second Napier screws 42 and 43 as described above, and the front column pusher 40 and the rear column pusher 40 are accordingly moved. The column pusher 41 pushes out the product 6 in the front column 36 and the product 6 in the rear column 37 to the front, then moves backward through the lower side of the product 6 in each column, and returns upward to the first pushing position again. Repeat the operation. The right turning pitch and the left turning pitch of the thread grooves of the first and second napier screws 42 and 43 are set so that the front column pusher 40 and the rear column pusher 41 perform the sequence operation described below. , Are formed with different pitches.

More specifically, the front column pusher 4
0 and the rear column pusher 41 are both columns 4 when moving forward.
The pitches of the thread grooves of the first and second napier screws 42 and 43 are set to be equal so that 0 and 41 move forward at the same speed, but when the pushers 40 and 41 are retracted, the backward speed of the rear column pusher 41 is set. Is the front column pusher 4
1st and 2nd Napier screw 4
The pitches of the screw grooves of 2 and 43 are set to be different.

In this embodiment, the front column pusher 40 is used.
Is set to move forward by 6 rotations of the first napier screw 42 and retract at 4 rotations, and the rear column pusher 41 is set to move forward at 6 rotations of the second napier screw 43 and retract at 14 rotations.

FIG. 6, FIG. 7, and FIG. 8 are diagrams showing the sequence of the product pushing-out device according to this embodiment. [0] indicates the standby positions of the front column pusher 40 and the rear column pusher 41, and the front column pusher 40 and the rear column pusher 41 move forward in [1], [2], and [3], and the product 6 In [4] and [5], the front column pusher 40 descends and retracts through the lower side of the product 6, and the rear column pusher 41 retracts at the same height position as during extrusion. The product 6 is pushed back a little later, and a gap 75 is formed between the product 6 in the front column and the product 6 in the rear column. Then, in [6] and [7], the rear column pusher 41 is used.
Moves down and moves backward under the product 6. At this time, the return speed of the front column pusher 40 is faster than the return speed of the rear column pusher 42, and when the rear column pusher 42 is descending or retracting, the front column pusher 40 is already in the gap 75. ing.

At [8], the front column pusher 40 is moved upward, and the state of [9] is reached, thus completing one push-out operation. The next extrusion operation starts from this state [9], or operates continuously when two or more pieces are continuously extruded, and the product 6 is sent out at [10]. At this time, the rear column pusher 41 is still in the middle of retreating, and during that time, the front column pusher 40 descends and retreats again at [11], [12], and [13].

In [13], the pusher 4 for the front column
0 and the rear column pusher 41 simultaneously move up and return to the initial position.

That is, in the present embodiment, when the pusher 41 for the rear column carries out one cycle of product extrusion circulation, the pusher 40 for the front column carries out two cycle of product extrusion circulation, whereby the front column 36 and the rear column 36 are moved. Each of the products 6 in the column 37 can be alternately extruded into the discharge port 38.

By changing the turning pitch of the thread grooves of the first and second napier screws 43 and 44 shown in FIGS. 1 to 5, the front column pusher is rotated while rotating the napier screws 43 and 44 at the same speed. It is possible to cause each pusher to perform the above operation by changing the timing of the reciprocating movement of 40 and the rear column pusher 41.

The present invention is not limited to the embodiments, and the configuration may be changed appropriately. For example, the rear column pusher 41 may have the same rotating structure as the front column pusher 42, and the lock operating mechanism and the lock releasing mechanism may be combined with this. In addition, the first and second napier screws 42, 4
Instead of 3, a forward / reverse rotation screw whose rotation speed is appropriately set can be used.

[0053]

As described above, according to the present invention, a plurality of conventional shooters can be integrated by pushing out the products stored in the product storage unit having a plurality of columns from one product discharge unit. The product storage space can be made large enough, and the depth of the vending machine can be reduced to make it thinner. Moreover, since each product in the plurality of columns is extruded by an individual pusher, there is an effect that the product does not extrude and the product is not damaged.

[Brief description of drawings]

FIG. 1 is a plan view of a drive mechanism of each pusher of a front column of a product pushing device according to this embodiment.

FIG. 2 is a side view showing a drive mechanism section of a front column pusher.

FIG. 3 is a side view illustrating a drive mechanism section of the rear column pusher during a first operation.

FIG. 4 is an explanatory side view showing a drive mechanism section during a second operation of the rear column pusher.

FIG. 5 is an explanatory diagram of a gear mechanism of the drive mechanism.

FIG. 6 is a diagram showing a sequence of a product extruding process.

FIG. 7 is a diagram showing a sequence of a product extruding process.

FIG. 8 is a diagram showing a sequence of a product extruding process.

FIG. 9 is an explanatory diagram of the product pushing device of the first conventional example during the first operation.

FIG. 10 is an explanatory diagram of a second operation of the same.

FIG. 11 is an explanatory diagram of the same during a third operation.

FIG. 12 is a perspective view of a drive device of a first conventional example.

FIG. 13 is an explanatory diagram of a second conventional example.

[Explanation of symbols]

6 ... Merchandise, 31 ... Lower case, 34 ... Merchandise storage section, 36
... front column, 37 ... rear column, 38 ... discharge port, 40 ... front column pusher, 41 ... rear column pusher, 4
2 ... 1st Napier screw, 43 ... 2nd Napier screw, 44 ... Slider, 45 ... Slider, 46, 47 ... Gear, 49
... Reduction gear mechanism, 50 ... Motor, 51 ... Bearing tube, 56 ...
lever.

Claims (5)

[Claims] 1. The product storage section has a front column and a rear column, and the products loaded in each column are sorted from the lowest product to the first product.
In a product extrusion device of a vending machine that pushes out the front column and the rear column one by one to the discharge port, the pusher for the front column that pushes the product in the front column to the discharge port and the product in the rear column is pushed to the front column. It is equipped with a pusher for the rear column to put out, and these pushers for the front column and the pusher for the rear column respectively push out the product in the front column and the product in the rear column, and then push the tip of each pusher to the product of the lowest stage in each column. A product pushing-out device for a vending machine, characterized in that it is connected to a drive mechanism so as to be able to retreat the lower side and return to the pushing-out initial position. 2. The drive mechanism causes the rear column pusher to retract at the same height as when the commodity is pushed out in the initial stage of retracting after pushing the commodity in the rear column to the front column. The product extruding device for a vending machine according to claim 1, further comprising a mechanism. 3. The drive mechanism is configured by screwing sliders respectively on two screw shafts arranged in parallel, and the front column pusher and the rear column pusher are movably mounted on the sliders of the screw shafts. The product push-out device for a vending machine according to claim 1 or 2, wherein the product push-out device is connected and is urged toward the product storage section via a spring means. 4. The front column pusher is rotatably supported by the one slider via a support shaft so as to be rotatable at a predetermined angle, and the rear column pusher is attached to the other slider by the screw shaft of the screw shaft. 4. A lock mechanism, which is movably supported in a direction orthogonal to the axis and has a lock operating means and a lock releasing means provided on a movement locus along the screw shaft, for operating the lock mechanism. Item extruding device of the vending machine described in. 5. The product storage section has a front column and a rear column, and the products loaded in each column are listed in order from the lowest product to the first product.
In the product extrusion method of the vending machine that pushes out the front column and the rear column in order to the outlet, the pusher for the front column that pushes the products in the front column to the outlet and the product for the rear column that pushes the products in the rear column to the front column The pushers are connected to a slider screwed on two Napier screws each having a thread groove of the same pitch or different pitch, and each pusher moves forward in a substantially synchronized manner, and the pusher for the front column pushes the product in the front column. The first step of pushing out to the discharge port, the rear column pusher pushes out the products in the rear column to the front column, and the second step in which the front column pusher retracts the lower side of the products in the front column; While the pusher is retracting underneath the product in the front column, the rear column pusher retracts for the specified distance in the same posture as when pushing out the product, Back, and a third step of forming a gap between the product in the front column and the product in the rear column and then descending and retracting the lower side of the product, and the pusher for the rear column is in the middle of retreating Goes back to the initial position of pushing out through the above-mentioned interval, pushes out the next product again and then descends, and then goes back to the lower side of the product, 4th step, pusher for front column and for rear column A method of pushing out a product in a vending machine, which comprises a fifth step in which the pusher moves upward and returns to an initial position where the product in each column is pushed out at substantially the same time.