JPS6324526Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a postcard conveying device incorporated in a postcard vending machine, and its purpose is to accurately convey postcards one by one. It is something.

[Prior Art] Various postcard vending machines have been developed in which postcards can be purchased by inserting coins.

As shown in Japanese Patent Publication No. 35-012519, for example, the postcard conveying device in this postcard vending machine stores a large number of postcards in a storage box in a stacked manner so that they can be taken out laterally from the top postcard. The upper postcard is sent out from inside the storage box by the rotational action of a rotating roller that comes into frictional contact with the upper surface of the upper postcard stored and held, and the sent postcard is conveyed by a pair of guide plates. The material is delivered along the transport path to the exit by a large number of delivery rotating rollers provided on the transport path.

The above-mentioned conventional postcard conveying device rotates only one of a pair of rollers that pinch and send out postcards along the conveyance path. for,
Only the upper postcards that are in contact with the rotationally driven roller are sent out, and the sending force is not applied to other postcards, thereby preventing the unauthorized sending out of a large number of postcards.

[Problem that the invention attempts to solve]

However, in the above-mentioned conventional technology,
Even if it is possible to prevent the sending of postcards that have been illegally removed from the storage box, it is not possible to return these illegally removed postcards to the storage box.
A serious inconvenience has arisen in that the fraudulently removed postcards interfere with the next postcard sending operation.

As a means to resolve this inconvenience, a method has been adopted in which postcards that have been illegally taken out of the storage box are sent to a designated location in the vending machine after the legitimate postcards have been removed. In this case, the fraudulently removed postcards cannot be removed for sale, and therefore the amount of postcards that can be sold by one vending machine is less than the amount of postcards stored in this vending machine. This has the disadvantage that the postcards are significantly smaller in size, and it also requires time to send the fraudulently retrieved postcards to a set location separately from the legitimate postcards, and it sometimes takes a lot of time to send out the predetermined number of postcards. A situation occurred that required a considerable amount of time.

The problem with this prior art is that a postcard that has been illegally removed from the storage box must be delivered to a preset location through the official postcard delivery route before the next legitimate postcard is delivered. It is occurring.

Therefore, the technical problem of the present invention is to send postcards that have been illegally taken out from inside the storage box back into the storage box during the unloading operation of the regular postcards by using the unloading operation of the regular postcards. That is.

[Means for solving problems]

Hereinafter, the present invention will be explained with reference to the drawings showing one embodiment of the present invention.

The means of the present invention includes an endless running belt that rotates in the direction of frictionally contacting the top surface of the top postcard A of the group of postcards A stored in the storage box 1 in a stacked state and sending this postcard A forward. 7, and a rotationally driven kettle that pinches the postcard A sent out by the running belt 7 between it and an auxiliary roller 10 and sends it out within a distance shorter than the length of the postcard A from the tip of the postcard A in the storage box 1. It has a take-out mechanism 12 consisting of a pick-up roller 9, and a detection roller 15 that oscillates while holding the postcard A being sent out between a fixed roller 14 placed in front of the pick-up roller 9; It has a detection mechanism 13 that outputs a detection signal when the detection roller 15 oscillates beyond a certain value, and is arranged to face the running belt 7 with the postcard A being sent out and rotate in the direction of returning the postcard A. A return roller 22 is provided which is driven, and the return roller 22 is activated when a postcard A is being sent out by inputting a detection signal.
It has a sending-back mechanism 20 that presses against.

That is, the detection mechanism 13 and the sending-back mechanism 20 are connected to the postcard A carrying-out passage 11 formed between the running belt 7 of the taking-out mechanism 12 and the scraping roller 9.
Moreover, the sending force for the regular postcard A is applied only to the upper surface of the postcard A.

[Effect]

When coins are inserted, the highest postcard A in the storage box 1 is taken out by the running belt 7 along the conveyance path 11 toward the picking roller 9.

The postcard A was taken out during the previous feeding operation towards the pick-up roller 9 of the postcard A.
passes through the detection mechanism 13 and its thickness is detected,
It is checked whether one or more sheets are present.

When there is only one postcard A taken out, that is, when it is in a proper state, the detection mechanism 13 does not output a detection signal, and therefore the sending back mechanism 20 does not operate.

When the postcard A reaches the scraping roller 9, the scraping roller 9 transfers the postcard A to the auxiliary roller 10.
It is held between the two and sent further forward by its rotational force.

When the detection roller 15 of the detection mechanism 13 swings more than a set amount and outputs a detection signal, for example, when two postcards A are taken out together, this detection signal is input to the sending back mechanism 20. In response to the input of this detection signal, the sending back mechanism 20 brings its return roller 22 into contact with the lower surface of the postcard A taken out at the lower level being sent out, and transfers this lower level postcard A to the upper regular postcard. Slide it against A and move it in the return direction.

Since the sending back mechanism 20 is disposed within the postcard A carry-out passage 11 formed by the take-out mechanism 12, the lower postcard A that has received the returning force from the sending back mechanism 20 still has its rear end in the storage box. The lower postcard A, which has not been removed from the inside and is therefore sent back by the sending back mechanism 20, is returned to the storage box 1 as it is by this return movement, returns to the state facing the running belt 7, and is returned to the next state. According to the take-out command, the top postcard A contacts the running belt 7 and is taken out as a regular postcard A.

Note that when the highest postcard A is sent out, the next postcard A in storage box 1 rises to the highest position, but in order to prevent this new highest postcard A from being sent out consecutively. When the leading edge of the postcard A reaches the position of the scraping roller 9, the running operation of the running belt 7 is stopped or the running belt 7 is moved upward to remove the new uppermost postcard A. To prevent continuous sending operations from occurring. For the postcard A to reach the scraping roller 9, a timer or other ordinary detection means may be used.

〔Example〕

A storage box 1 for postcards A stores a large number of postcards A as a stacked postcard group on a support plate 2 that is movably assembled into the box body, and is stored under the support plate 2. An elastic material 3 such as a spring is provided, and the elasticity of the elastic material 3 constantly acts on the group of postcards via the support plate 2. Therefore, when the upper postcard A is taken out, the postcard group is upwardly displaced within the storage box 1 by the thickness of the upper postcard A, so that the uppermost postcard A is always positioned at a constant height position.

The take-out mechanism 12 includes a feed-out roller 4 located directly above the tip of the topmost postcard A in the storage box 1, and a drive roller that is placed in front of the feed-out roller 4 and is connected to a feed-out motor 6 and driven to rotate. 5, an endless running belt 7 made of a material such as rubber having a large surface frictional resistance and stretched between both rollers 4 and 5;
A scraping roller 9 is disposed within a length distance of one postcard A from the tip of the postcard A stored in the storage box 1, and is connected to a scraping motor 8 and driven to rotate. It consists of an idling auxiliary roller 10 which is placed in light contact with the roller 9 from below, so that a sending force can be applied to the postcard A over the width of the gap between both rollers 4 and 5. Then, the postcard A taken out by the running belt 7 is reliably fed to the picking roller 9.

The detection mechanism 13 includes a support shaft 16 installed above the carry-out passage 11 so as to cross the carry-out passage 11, and a support arm whose base end is fixed to the support shaft 16 and a detection roller 15 is attached to its tip. 17, a relatively long detection arm 18 whose upper end is fixed to one end of the support shaft 16 and assembled in a hanging manner, and a detection section 1 arranged to face the lower end of this detection arm 18.
9, and a fixed roller 14 which is arranged directly below the detection roller 15 and which inserts the postcard A being sent between the detection roller 15 and provides a reference position for the detection operation of the detection roller 15. , the displacement of the detection roller 15 with respect to the fixed roller 14 due to the entry of the postcard A between the detection roller 15 and the fixed roller 14 is regarded as the swing displacement of the detection arm 18, and the amount of swing displacement of the detection arm 18 is set. When the value is greater than or equal to the value, the detection unit 19 outputs a detection signal. As the detection unit 19,
Any device may be used as long as it can detect the swinging displacement of the detection arm 19 with respect to the detection unit 19, such as an optical device, a device that uses magnetism, or a device that uses a limit switch. I can think of something like that.

The feed-back mechanism 20 includes a frame body 21 whose base end is rotatably attached to a rotating shaft connected to a reversing motor 23 and rotationally driven, and a frame body 21 which has a return roller 22 rotatably attached to its distal end; The electromagnetic plunger 24 has the tip of the rod 25 connected to the base end of the electromagnetic plunger 24.
The rotational force of the reversing motor 23 is transmitted to the return roller 22 by a pulley fixed to the rotating shaft and an endless belt stretched between this pulley and the return roller 22. The electromagnetic plunger 24 retracts its rod 25 in response to the input of the detection signal from the detection mechanism 13, swings the frame 21, and positions the return roller 22 attached to the tip of the frame 21 in the carry-out passage 11. Place it in contact with the bottom surface of postcard A.

For example, three postcards A are stored in storage box 1 at the same time.
, the top two postcards A may be sent out as they are. In order to cope with such a situation, in addition to the combination of the above-mentioned take-out mechanism 12, detection mechanism 13, and feed-back mechanism 20,
On the downstream side of this combination, a separate scraping roller 9 is provided.
and a roller mechanism with an auxiliary roller 10 and a detection mechanism 13
By providing a combination structure including the sending-back mechanism 20 and the sending-back mechanism 20, it is possible to prevent the two postcards A from being sent out illegally by the same effect as described above.

However, providing multiple return mechanisms in this way complicates the overall structure of the device and makes it impossible to return the fraudulently sent postcard A to the storage box 1. In the case of this example, a second detection mechanism 13' having exactly the same configuration as the detection mechanism 13, a conveyance roller 27 and a separator 28 are provided on the downstream side of the device of the present invention, and this second detection mechanism 13' If the second detection mechanism 13 outputs a detection signal, the second detection mechanism 13 The separator 28 is actuated by a detection signal from the separator 25' to move the rod 25' forward and swing the separator 28 in the direction in which the tip thereof rises. Separator 2
When 8 is in a posture with its tip raised,
The postcard A sent out by a pair of conveyance rollers 27 to which the rotational force of the picking motor 8 is transmitted via a belt 26 is guided downward away from the regular conveyance path by this separator 28, and is then delivered to a predetermined location. will be detained in

However, the number of postcards that can be taken out at one time from the storage box can be mechanically regulated extremely accurately by regulating the vertical width of the postcard ejection opening of this storage box, so in reality, two or more postcards can be taken out at one time. The postcards will not be taken out in piles.

[Effect of idea]

As is clear from the above explanation, the present invention is capable of accurately sending out postcards one by one, and also sends illegally taken out lower-level postcards to the storage box during normal postcard sending operation. Since the postcards in the storage box can be returned to the storage box in a removable state, all postcards in the storage box can be sent out properly without any waste, and the operating efficiency of this type of postcard vending machine can be dramatically increased. In addition, since the operation to return a postcard that has been illegally taken out is performed while the official postcard and the illegally removed postcard are overlapped, it is possible to return the postcard that has been removed illegally without interfering with the sending operation of the official postcard. It exhibits many excellent effects such as being reliably and smoothly achieved without being affected by the postcard sending operation.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts showing an embodiment of the present invention. FIGS. 2 and 3 explain the operation of the detection mechanism and the sending-back mechanism in the embodiment shown in FIG. 1. Figure 2 shows the state immediately after two postcards enter the detection mechanism at the same time, and Figure 3 shows the sending back mechanism operating and sending back the lower postcard. Indicates the condition. Explanation of symbols, 1... Storage box, 4... Delivery roller, 5... Drive roller, 6... Delivery motor, 7...
...Traveling belt, 8... Biting motor, 9... Biting roller, 10... Auxiliary roller, 11... Carrying out passage, 12... Taking out mechanism, 13... Detection mechanism,
14...Fixed roller, 15...Detection roller, 16
... Support shaft, 17 ... Support arm, 18 ... Detection arm, 19 ... Detection section, 20 ... Return mechanism, 21 ... Frame, 22 ... Return roller, 23 ...
...Reverse motor, 24...Electromagnetic plunger, 25...
...Rotsudo, A...Postcard.

Claims (1)

[Claims for Utility Model Registration] An endless device that rotates in the direction of sending forward the postcard A by frictionally contacting the top surface of the top postcard A of the group A of postcards stored in the storage box 1 in a stacked state. The postcard A sent out by the running belt 7 is held between the running belt 7 and the auxiliary roller 10 and sent out within a distance shorter than the length of the postcard A from the tip of the postcard A in the storage box 1. A take-out mechanism 12 consisting of a rotationally driven scraping roller 9
and a fixed roller 14 disposed in front of the scraping roller 9, a detection roller 15 is provided which swings and displaces the postcard A being sent between the two, and when the detection roller 15 swings beyond a certain value. A detection mechanism 13 that outputs a detection signal based on displacement, and a return roller 22 that is disposed facing the running belt 7 with the postcard A being sent out and rotationally driven in the direction of returning the postcard A, are provided. A postcard conveying device comprising: a sending-back mechanism 20 that presses a roller 22 against a postcard A that is being sent out in response to input of the detection signal.