JP3720891B2 - Product dispensing device - Google Patents

Description

▲３▼〜▲５▼の場合において、各商品検知センサ62，63の検知結果が異なり、投出部材51が１ストローク分移動される。
【００５８】
なお、前列および後列商品検知手段としては、マイクロスイッチなどの機械的検知センサに限らず、光学式検知センサを用いてもよい。
【００５９】
また、投出部材に所定の駆動を与える制御部は、１個の商品投出装置に対して１個設けても構わないし、複数個の商品投出装置を備える自動販売機等の場合には全てあるいは一部の商品投出装置をまとめて制御する制御部を設けてもよい。
【００６０】
【発明の効果】
本発明の商品投出装置によれば、前列および後列商品検知センサの検知結果に応じて投出部材を移動させ、商品収納部内の前列または後列のいずれに残る商品も投出可能とするため、商品補充時に制限を受けることなく、商品収納部内の商品を全て投出することができる。
【図面の簡単な説明】
【図１】本発明の一実施の形態を示す商品投出装置の側面方向の断面図である。
【図２】同上実施の形態の商品投出装置の投出ユニットの内部構造を示す平面図である。
【図３】同上実施の形態の商品投出装置の投出ユニットの内部構造を示し、後列商品検知センサの商品有検知状態での正面方向の断面図である。
【図４】同上実施の形態の商品投出装置の投出ユニットの内部構造を示し、後列商品検知センサの商品無検知状態での正面方向の断面図である。
【図５】同上実施の形態の制御系のブロック図である。
【図６】同上実施の形態の前列および後列商品検知センサの検知状況を(a) 〜(f) に示す説明図である。
【符号の説明】
21 商品収納部
44 投出部材駆動手段としての駆動モータ
51 投出部材
57 被検知手段
62 前列商品検知手段としての前列商品検知センサ
63 後列商品検知手段としての後列商品検知センサ
71 制御手段
Ｔ 商品[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a product dispensing apparatus that collects and stores products in a front and rear row in a product storage unit, and throws them forward in order from the lowest product.
[0002]
[Prior art]
As a conventional product dispensing device, for example, a structure adopted in a cigarette vending machine is known as described in JP-A-5-189653.
[0003]
In such an apparatus, a product discharge portion is disposed below the product storage portion for storing and storing products in two rows in the front and rear, and an endless chain is stretched in the product discharge portion along the front-rear direction. The throwing members are provided at two symmetrical positions of the chain.
[0004]
Then, by moving one throwing member located at the rear standby position behind the product storage unit to an intermediate standby position near the middle of the product storage unit, the lowest product in the front row is placed via the lowest product in the rear row. Push forward and throw out this product. Further, the dispensing member located at the intermediate standby position moves to the front dispensing completion position in front of the product storage unit, thereby pushing the lowest product in the front row forward and dispensing. Thereafter, the throwing member that has thrown out the product goes around the lower region of the chain, and the other throwing member moves to the rear standby position to prepare for the next dumping.
[0005]
In addition, optical or lever-type sell-out detection means for detecting the presence or absence of a product is arranged in the vicinity of the bottom of the front row and the rear row of the product storage unit, and either the front row or the rear row sold-out detection means is a product. When the absence is detected, it is determined that the product is sold out, and the product is prohibited from being thrown out (switched to display sold out or to be put out from another product storage device that stores the same product).
[0006]
[Problems to be solved by the invention]
However, in the conventional product dispensing device, even if some products remain in the front row of the product storage unit, if there are no products in the rear row of the product storage unit, the product is prohibited to be thrown out. That is, a state occurs in which the product cannot be thrown out while the product remains in the product storage unit.
[0007]
In order to prevent this, there is a method of instructing the product stacking state such that one more product is stacked in the front row than the back row at the time of product replenishment, but it is troublesome for the staff (cigarette store clerk, etc.) and is not always followed I can't. Further, the accumulated height varies depending on whether the standby position of the throwing member is the rear standby position or the intermediate standby position, and it is difficult to stack one more in the front row than in the rear row.
[0008]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a product dispensing apparatus capable of dispensing all products in the product storage unit without being restricted at the time of product replenishment.
[0009]
[Means for Solving the Problems]
The product dispensing device according to the present invention is a product dispensing device that collects and stores products in a product storage unit in two rows in the front and rear, and sequentially forwards from the lowest product to the front, and whether or not there is a product in the front row in the product storage unit Front row product detection means for detecting the presence, rear row product detection means for detecting the presence or absence of a rear row product in the product storage unit, and a position near the rear end of the product storage unit and the product storage. A throwing member that is movable between positions near the front end of the product, and an intermediate standby position that is close to the middle of the product storage unit from the rear standby position near the rear end of the product storage unit. A movement for the stroke to move to, a movement for the stroke to move to the rear standby position from the intermediate standby position to the rear standby position near the front end of the product storage portion, Provided in connection with the throwing member The detected means detected by the rear-row product detection means at the intermediate standby position of the throw-out member, and when both the front-row product detection means and the rear-row product detection means detect the absence of the goods, When the detection state of the front-row product detection means and the back-row product detection means is different, the throwing member is moved by one stroke, and when both the front-row product detection means and the back-row product detection means detect the presence of the product, the next throwing And a control means for allowing operation.
[0010]
And when there are enough products in the product storage section, when the throwing member is in the rear standby position, when the throwing member moves from the rear standby position to the intermediate position, the lowest product in the front row via the lowest product in the rear row Is pushed out and thrown out. When the throwing member is in the intermediate standby position, when the throwing member moves from the intermediate position to the front throwing completion position, the lowest product in the front row is pushed out and thrown out, and the throwing member moves to the rear waiting position.
[0011]
Further, when there is no product only in the front row of the product storage unit, when the dispensing member is in the rear standby position, the front row product detection means detects the presence of the product, and the rear row product detection means detects the absence of the product. Therefore, the throwing member is moved by one stroke, and the throwing member moves to the intermediate standby position and stands by. Then, based on the dispensing command, the dispensing member moves from the intermediate standby position to the front dispensing completion position, the lowest product in the front row is dispensed, and the dispensing member reaches the rear waiting position.
[0012]
When the dispensing member is in the intermediate standby position, the front row product detection means detects the presence of the product by the product, and the rear row product detection means detects the presence of the product by the detected means of the ejection member. Therefore, it waits as it is, and based on the next dispensing command, the dispensing member moves from the intermediate standby position to the forward dispensing completion position, the lowest product in the front row is dispensed, and the dispensing member reaches the rear waiting position. .
[0013]
In addition, when there is no more product in the rear row of the product storage unit and the throwing member is in the rear standby position, the rear row product detection means detects the presence of the product by the product, and the front row product detection means detects the absence of the product. . Therefore, the throwing member is moved by one stroke, and the throwing member moves to the intermediate standby position while pushing out the rearmost product in the rear row and stands by. Then, based on the dispensing command, the dispensing member moves from the intermediate standby position to the front dispensing completion position, the lowest product in the front row is dispensed, and the dispensing member reaches the rear waiting position.
[0014]
When the throwing member is in the intermediate standby position (although it cannot occur normally, even if it occurs due to splashing during replenishment work, etc.), the front row product detection means detects the presence of a product, and the rear row product detection means The presence of the product is detected by the detection means of the output member. Therefore, it waits as it is, and on the basis of the next dispensing command, the dispensing member moves from the intermediate standby position to the forward dispensing completion position, the lowest product in the front row is dispensed, and the dispensing member reaches the rear waiting position. .
[0015]
In addition, when there is no product in either the front row or the rear row of the product storage unit, when the throwing member is in the rear standby position, the front row product detection means and the rear row product detection means detect the absence of the product, and the dispensing operation Is prohibited (sold out).
[0016]
When the dispensing member is in the intermediate standby position, the rear row product detection means detects the presence of the product by the detected means of the ejection member, and the front row product detection means detects the absence of the product. Accordingly, the throwing member is moved by one stroke, and the throwing member moves to the rear standby position. As a result, both the front-row product detection means and the back-row product detection means detect that there is no product, and the dispensing operation is prohibited (sold out state).
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a product dispensing apparatus of the present invention will be described with reference to the drawings.
[0018]
As shown in FIG. 1, the product dispensing apparatus includes a storage column 11 and a dispensing unit 12 disposed below the storage column 11.
[0019]
The storage column 11 has a product storage portion 21 that stores rectangular products T such as cigarettes in a stacked state in two front and rear rows, and only one product T can pass under the front plate 22 of the storage column 11. The outlet 23 is formed, and a passage hole 25 through which a later-described ejection member 51 can be passed is formed in the lower portion of the rear plate 24.
[0020]
The dispensing unit 12 includes a substantially rectangular parallelepiped frame 31 that is elongated in the front-rear direction. The frame 31 is formed with a step 33 near the center of the upper surface 32 that forms the bottom surface of the product storage unit 21, and this step The front upper surface 32a on the front side of 33 is formed slightly higher than the rear upper surface 32b on the rear side of the stepped portion 33. Further, an opening 34 for moving the projecting member 51 is formed on the upper surface of the frame 31 along the front-rear direction.
[0021]
As shown in FIGS. 2 to 4, the inside of the dispensing unit 12 is divided into a left and right first space 35 and a second space 36 by a partition plate 37.
[0022]
In the first space 35, a drive mechanism 38 for moving the throwing member 51 in the front-rear direction is disposed. The drive mechanism 38 includes a front pulley 40 and a rear pulley 41 that are rotatably supported on a mounting plate 39 provided in the first space 35, and the drive belt 42 is wound between the pulleys 40 and 41. It has been turned. The front pulley 40 is disposed such that the front edge thereof is positioned in the vicinity of the front end of the product storage unit 21, and the rear pulley 41 is disposed so that the rear edge thereof is positioned behind the product storage unit 21. The rear pulley 41 is connected via a gear box 43 to a drive motor 44 as a discharge member driving means (shown in FIG. 1), and is rotated counterclockwise in FIG.
[0023]
One engagement pin 45 is erected on the upper surface of the drive belt 42, and this engagement pin 45 is engaged with the long hole 47 of the slide member 46. The slide member 46 has a substantially U-shaped cross section, and is supported at both ends by a guide groove 48 formed on both side edges of the first space 35 of the frame 31 so as to be movable in the front-rear direction. A portion 49 is formed, and a long hole 47 is formed in the upper surface along the left-right direction. An engagement protrusion 50 is formed on the upper portion of the slide member 46, and the engagement protrusion 50 is inserted into the engagement hole on the lower surface of the ejecting member 51. When the engagement pin 45 is moved by the rotation of the drive belt 42, the slide member 46 takes in only the movement in the front-rear direction by the action of the long hole 47 and the guide groove 48, and the throwing member 51 also performs the same movement. To do.
[0024]
The dispensing member 51 includes an extruding portion 52 and a connecting portion 53 formed on the lower surface of the extruding portion 52. The extruding part 52 has a thickness about half that of the product T and a width slightly smaller than the width of the product T, and is disposed above the frame 31 of the dispensing unit 12 so as to be integrated with the slide member 46. The product T is pushed out by moving the bottom of. The connecting portion 53 is narrower than the pushing portion 52, is movably fitted in the opening 34 on the upper surface 32 of the frame 31, and a plurality of support members 54 are rotatably connected to the rear portion. .
[0025]
The support member 54 includes a support portion 55 and a connection portion 56 having substantially the same shape as the pushing portion 52 and the connection portion 53 of the ejection member 51, and can be bent only in a direction in which the rear support member 54 is lowered from the horizontal state. It is connected. The lower surface of the support portion 55 of the support member 54 is configured as a detected means 57 that is detected by a rear-row product detection means described later when the throwing member 51 reaches the vicinity of an intermediate standby position described later.
[0026]
In the vicinity of the rear end of the throwing unit 12, a guide hole 58 for guiding the support member 54 downward when the throwing member 51 is retracted is provided. The guide hole 58 is opened at the bottom, and the tip of the support member 54 guided here is suspended downward.
[0027]
Further, as shown in FIG. 2, two first and second detection projections 59, 60 are provided on the lower surface of the drive belt 42, and project into the movement path of these detection projections 59, 60, for example, a micro switch or the like. The one position detection sensor 61 is arranged. The first detection protrusion 59 is detected by the position detection sensor 61 at the timing when the engagement pin 45 reaches the vicinity of the rear edge of the rear pulley 41. At this time, the throwing member 51 is located behind the product storage unit 21, and this position is set as a rear standby position. The second detection protrusion 60 is detected by the position detection sensor 61 at the timing when the engagement pin 45 is rotated about one quarter. At this time, the dispensing member 51 is located slightly forward from the middle of the product storage unit 21, and this position is set as an intermediate standby position.
[0028]
In the second space 36 of the dispensing unit 12, a front-row product detection sensor 62 as a front-row product detection means and a back-row product detection sensor 63 as a back-row product detection means are arranged, and their detection levers 62a and 63a are connected to the product. It protrudes into the storage part 21. The detection lever 62a of the front row product detection sensor 62 protrudes to a position corresponding to the front row product T of the product storage portion 21, and the detection lever 63a of the rear row product detection sensor 63 protrudes to a position corresponding to the rear row product T of the product storage portion 21. The The product detection sensors 62 and 63 are turned on when the detection levers 62a and 63a are pressed downward to detect the presence of a product, and are released when the detection levers 62a and 63a are released to detect the absence of a product. To do.
[0029]
FIG. 5 shows a control means 71. The control means 71 inputs a throwing command signal from the vending machine, detection signals from the position detection sensor 61 and the product detection sensors 62 and 63, and a drive motor. Control 44.
[0030]
That is, the first movement of the throwing member 51 from the rear standby position near the rear end of the product storage unit 21 to the intermediate standby position near the middle of the product storage unit 21, Control is performed so as to alternately provide the second movement that moves to the rear standby position via the front ejection completion position near the front end.
[0031]
Further, the control means 71 compares the detection states of the product detection sensors 62 and 63 when the discharge member 51 reaches the rear standby position or the intermediate standby position, and sets the discharge member 51 on condition that the detection results are different. Move one stroke (from the standby position to the next standby position). Further, when the detection state of both the product detection sensors 62 and 63 is OFF (no product), the product is prohibited from being thrown out (“sold out” is displayed or another product that stores the same product T is displayed. Switch so that the product T is thrown out from the exit position). Furthermore, when the detection state of both the product detection means 62 and 63 is on (product exists), the next dispensing operation is permitted.
[0032]
Next, the operation of the present embodiment will be described.
[0033]
In the product storage unit 21, products T are stacked and stored in two rows. At this time, the product T in the front row is placed on the front upper surface 32a, the product T in the rear row is placed on the rear upper surface 32b, and the product T in the front row is placed at a slightly higher position than the product T in the rear row. .
[0034]
First, a case where there are sufficient products T in the product storage unit 21 will be described.
[0035]
The first standby state is when the dispensing member 51 is in the rear standby position behind the product storage unit 21. In this first standby state, the engagement pin 45 of the drive belt 42 is positioned near the rear end of the rear pulley 41, and the first detection protrusion 59 is detected by the position detection sensor 61. At this time, as shown in FIG. 6 (a), the detection levers 62a, 63a of the front row and rear row product detection sensors 62, 63 remain pressed by the product T, so the front row and rear row product detection sensors 62, 63 Are in the same ON (product present) state, and wait for a dispensing command.
[0036]
When the ejection is instructed, the drive motor 44 is driven, and the drive belt 42 is rotated counterclockwise in FIG. As the engagement pin 45 moves, the throwing member 51 moves forward and enters the product storage portion 21 through the passage hole 25 at the lower part of the rear plate 24, and the rear row lowest product T and the front row lowest product T are moved. Push. The rear row lowest product T is pushed out to the front row by the throwing member 51, and the front row lowest product T is thrown forward through the outlet 23.
[0037]
At this time, a stepped portion 33 is formed on the bottom surface of the product storage portion 21 and the front row product T is higher than the back row product T, so that the rear row lowest product T has the front upper end of the front row next product T. Only the lowest product T in the front row can be pushed out without being caught by the lower end of the rear surface.
[0038]
The rear-row next-order product T, which is dropped when the rear-row lowest-order product T moves forward, is placed on the support member 54 that has entered the product storage portion 21 after being connected to the dispensing member 51. Since the secondary product T falls on the support member 54, the drop can be smaller than the thickness of the product T, and the degree of inclination of the secondary product T can be suppressed to be small. In addition, even when the remaining amount of the product T is reduced, the shock of dropping the product T is suppressed, and it is difficult to cause an accumulation failure.
[0039]
Then, when the drive belt 42 is rotated about a quarter of a circle and the second detection protrusion 60 is detected by the position detection sensor 61, the drive motor 44 is stopped and the second standby state is entered. At this time, the dispensing member 51 is located at an intermediate standby position in the vicinity of the middle of the product storage unit 21. The rear-row product detection sensor 63 is turned on when its detection lever 63a is pressed by the support member 54. On the other hand, since the detection lever 62a of the front-row product detection sensor 62 remains pressed by the product T, both the front-row and rear-row product detection sensors 62, 63 are in the same ON (product) state, and the next dispensing command Wait for.
[0040]
When the next throwing is instructed, the drive motor 44 is driven again. As the engaging pin 45 moves forward, the throwing member 51 moves forward, and the front row lowest product T is thrown out through the outlet 23. When the engaging pin 45 reaches the vicinity of the front edge of the front pulley 40, the front surface of the throwing member 51 reaches the vicinity of the front end of the product storage unit 21.
[0041]
The front row second order product T, which is dropped when the front row lowest order product T is thrown out, is placed on the support member 54 that has entered the product storage portion 21 in a row with the throwing member 51. Since the secondary product T falls on the support member 54, the drop can be smaller than the thickness of the product T, and an accumulation failure is unlikely to occur.
[0042]
When the drive belt 42 is further rotated, the engagement pin 45 reaches the vicinity of the rear edge of the rear pulley 41, and the first detection protrusion 59 is detected by the position detection sensor 61, the drive motor 44 is stopped and the first standby is performed. Return to state. The dispensing member 51 is also retracted to the rear standby position behind the product storage unit 21, and the support member 54 is suspended downward from the rear. The front row product T placed on the support member 54 is placed on the front upper surface 32a, and the rear row product T is placed on the rear upper surface 32b.
[0043]
At this time, when there are enough products T in the product storage unit 21, the detection levers 62a, 63a of the front row and rear row product detection sensors 62, 63 remain pressed by the product T, so the front row and rear row product detection sensors Both 62 and 63 are in the on (product present) state and wait for the next dispensing command.
[0044]
In addition, throwing out the product T from the first standby state and throwing out the product T from the second standby state are performed cyclically, and it does not matter which standby state comes first.
[0045]
Next, the case where the remaining amount of the product T in the product storage unit 21 is reduced and only the product T in the front row is lost will be described.
[0046]
As shown in FIG. 6 (d), when the product T in the front row disappears with the throwing member 51 in the rear standby position, the front row product detection sensor 62 is in the off (no product) state with the detection lever 62a released. It becomes. On the other hand, even when the dispensing member 51 is in the rear standby position, the rear-row product detection sensor 63 is pressed by the product T whose detection lever 63a remains in the rear row, so that the rear-row product detection sensor 63 is in the on (product present) state. Become.
[0047]
At this time, since the detection result (off) of the front row product detection sensor 62 and the detection result (on) of the rear row product detection sensor 63 are different, the drive motor 44 is driven, and the dispensing member 51 is moved by one stroke (to the intermediate standby position). ) Moved. By this movement, as shown in FIG. 6 (b), the rear row product T is moved to the front row, and the detection lever 62a of the front row product detection sensor 62 is pressed by the product T, so that the front row product detection sensor 62 is turned on ( There is a product) state. On the other hand, since the detection lever 63a of the rear-row product detection sensor 63 is pressed by the support member 54, the rear-row product detection sensor 63 is turned on (product is present). As a result, both the front row and rear row product detection sensors 62 and 63 are in the same ON (product present) state, and wait for the next dispensing command as it is. If there is a dispensing command, the drive motor 44 is driven and the dispensing member 51 reaches the rear standby position after dispensing the front row lowest product T.
[0048]
Further, as shown in FIG. 6 (e), when the dispensing member 51 is in the intermediate standby position, the detection lever 63a of the rear-row product detection sensor 63 is pressed by the support member 54, so that the rear-row product detection sensor 63 is turned on ( There is a product) state. On the other hand, the front row product detection sensor 62 is turned off (no product). Therefore, since the detection result (off) of the front-row product detection sensor 62 and the detection result (on) of the back-row product detection sensor 63 are different, the drive motor 44 is driven, and the dispensing member 51 reaches one stroke (the foremost position). After that, it is moved back to the rear standby position) and is normally as shown in FIG. When the product T is placed on the support member 54, the product T falls on the rear upper surface 32b by the retreat of the throwing member 51, resulting in the state shown in FIG. 6 (d). .
[0049]
Next, a case where the remaining amount of the product T in the product storage unit 21 is reduced and only the product T in the rear row is lost will be described.
[0050]
As shown in FIG. 6 (c), when the product T in the rear row disappears in the state where the throwing member 51 is in the rear waiting position, the detection lever 63a of the rear row product detection sensor 63 is released, and the rear row product detection sensor 63 is Off (no product). On the other hand, the front row product detection sensor 62 is in the on (product present) state with the detection lever 62a being pressed by the product T. That is, since the detection result (on) of the front-row product detection sensor 62 and the detection result (off) of the rear-row product detection sensor 63 are different, the drive motor 44 is driven, and the dispensing member 51 is one stroke (to the intermediate standby position). Moved. By this movement, the rear-row product detection sensor 63 is pressed by the support member 54, so that the rear-row product detection sensor 63 is turned on (there is a product) (the state shown in FIG. 6B). As a result, both the front row and rear row product detection sensors 62 and 63 are in the same ON (product present) state, and wait for the next dispensing command as it is. If there is a throwing command, the drive motor 44 is driven and the throwing member 51 returns to the rear standby position after throwing out the lowest product T in the front row, which is normally as shown in FIG. When the product T is placed on the support member 54, the product T falls on the rear upper surface 32b by the retreat of the throwing member 51, resulting in the state shown in FIG. 6 (d). .
[0051]
Next, the case where the product T is completely lost in the product storage unit 21 will be described.
[0052]
As shown in FIG. 6 (f), when there is no product T in the product storage portion 21 with the throwing member 51 in the rear standby position, the detection lever 62a of the front row and rear row product detection sensors 62, 63 is detected. , 63a are both released, so that both the product detection sensors 62, 63 are turned off (no product), and the product T is not allowed to be ejected from the product dispensing device.
[0053]
As shown in FIG. 6 (e), in the state where the throwing member 21 is in the intermediate standby position, when no product T is left in the product storage unit 21, the detection lever 62a of the front row product detection sensor 62 is released, The front-row product detection sensor 62 is turned off (no product). On the other hand, the detection lever 63a of the rear-row product detection sensor 63 is pressed by the dispensing member 51, and the rear-row product detection sensor 63 is turned on (product is present).
[0054]
At this time, since the detection result (off) of the front-row product detection sensor 62 and the detection result (on) of the back-row product detection sensor 63 are different, the throwing member 51 reaches one stroke (after reaching the foremost position and then at the rear standby position). Move back) When the dispensing member 51 reaches the rear standby position, as shown in FIG. 6 (f), both the product detection sensors 62 and 63 are turned off (no product), and the product T is ejected from the product dispensing device. Out is prohibited.
[0055]
Note that a state in which all of the products T are completely out of the product storage unit 21 in a state where the throwing member 51 is in the intermediate standby position cannot normally occur. Although the product T is not allowed to be thrown out, no further inconvenience is caused to the user.
[0056]
Table 1 below summarizes the relationship between the detection results of each of the product detection sensors 62 and 63, the situation in the product storage unit 21, the standby position of the dispensing member, and the next operation as described above.
[0057]
[Table 1]

In the cases of (3) to (5), the detection results of the commodity detection sensors 62 and 63 are different, and the dispensing member 51 is moved by one stroke.
[0058]
The front row and rear row commodity detection means is not limited to a mechanical detection sensor such as a microswitch, and an optical detection sensor may be used.
[0059]
Further, one control unit for giving a predetermined drive to the dispensing member may be provided for one commodity dispensing apparatus, or in the case of a vending machine equipped with a plurality of commodity dispensing apparatuses. You may provide the control part which controls all or one part product delivery apparatuses collectively.
[0060]
【The invention's effect】
According to the product throwing device of the present invention, the throwing member is moved according to the detection result of the front row and rear row product detection sensors, and the product remaining in either the front row or the rear row in the product storage unit can be thrown out. All the products in the product storage unit can be thrown out without any restrictions when the products are replenished.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a product dispensing apparatus showing an embodiment of the present invention.
FIG. 2 is a plan view showing an internal structure of a dispensing unit of the product dispensing apparatus according to the embodiment.
FIG. 3 is a front sectional view showing the internal structure of a dispensing unit of the commodity dispensing apparatus according to the embodiment, in a state where a rear-row commodity detection sensor is in a commodity presence detection state.
FIG. 4 is a front sectional view showing the internal structure of the dispensing unit of the commodity dispensing apparatus according to the embodiment, in a state where the rear-row commodity detection sensor is in a state where no commodity is detected.
FIG. 5 is a block diagram of a control system according to the embodiment.
FIG. 6 is an explanatory diagram showing detection states of the front row and rear row commodity detection sensors according to the embodiment described above in (a) to (f).
[Explanation of symbols]
21 Product storage
44 Drive motor as a delivery member drive means
51 Throwing member
57 Means to be detected
62 Front row product detection sensor as front row product detection means
63 Back row product detection sensor as back row product detection means
71 Control means T

Claims (1)

In the product dispensing device that collects and stores products in the front and rear two rows in the product storage unit, and throws them forward in order from the lowest product,
Front row product detection means for detecting the presence or absence of products in the front row in the product storage unit;
Back row product detection means for detecting the presence or absence of back row products in the product storage section;
A dispensing member disposed near the lower surface of the product storage unit and movable between a position near the rear end of the product storage unit and a position near the front end of the product storage unit,
A movement corresponding to a stroke in which the ejection member moves from a rear standby position near the rear end of the product storage unit to an intermediate standby position near the middle of the product storage unit, and the product storage unit from the intermediate standby position. A throwing member driving means for alternately giving movement for a stroke that moves to the rear standby position via the front throwing completion position near the front end of
Detected means connected to the throwing member and detected by the rear-row product detection means at an intermediate standby position of the throwing member;
When both the front-row product detection means and the back-row product detection means detect the absence of the product, the throwing-out operation is prohibited, and when the detection status of the front-row product detection means and the back-row product detection means is different, the movement to the throwing member is performed by one stroke. And a control unit that permits the next dispensing operation when both the front-row product detection unit and the back-row product detection unit detect the presence of the product.

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