JP6930080B2 - Media trading equipment - Google Patents

Description

The present invention relates to a medium trading device such as a banknote withdrawal machine that transports a medium such as banknotes from a storage to a discharge port such as a withdrawal port and delivers it to a customer. Regarding the fall prevention structure in.

To attach the housing cover to the conventional housing, first, the locking portion provided at the bottom of the housing cover is inserted into the opening provided at the bottom of the housing to serve as a rotation fulcrum, and the rotation fulcrum is the center. The housing cover is rotated so that the bent portion of the mounting bracket provided on the upper portion of the housing cover is slid on the slope portion provided on the housing, and the housing cover is once lifted and locked to the stopper portion. After that, the groove provided in the mounting bracket is pushed in and fitted into the mounting screw screwed into the housing to be fastened (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2010-153640 (paragraphs 0011, 0015-0016, FIGS. 3 and 4)

However, when the above-mentioned conventional mounting structure is applied to the mounting of the transport unit to the main body of the medium trading device, after the relatively heavy transport unit is once lifted and the bent portion is locked to the stopper portion. , It is necessary to fit the groove into the mounting screw and fasten it, which causes a problem that it takes time to assemble the transport unit.

Further, in the medium trading device, the transport path connecting the storage portion loaded in the main body and the transport unit is divided by the attachment portion between the main body and the transport unit, so that the height direction and the horizontal direction High position accuracy is required. However, in the conventional mounting structure, when the transport unit is fastened to the main body, the groove is fitted into the mounting screw and fastened. Therefore, if the mounting screw becomes loose due to vibration during transporting the medium, the mounting screw is horizontal. There is a problem that the position shifts in the direction, and the medium being conveyed may be caught and jam may occur.

The present invention has been made to solve the above problems, and improves the position accuracy at the time of assembling the main body and the transport unit, and also improves the workability of assembling the transport unit to the main body. The purpose is to provide means.

In order to solve the above problems, the present invention includes a storage for storing a medium, a main body for loading the storage, and a transport unit attached to the main body for carrying the medium in the storage. A medium trading device comprising an engaging portion provided on the transport unit and a fall prevention mechanism provided on the main body portion and having a stopper portion that engages with the engaging portion. , provided with a main body side positioning portion to the mounting surface for mounting said transport unit, the transport unit, the unit-side positioning portion fitted on the main body portion side positioning portion provided, the engaging portion is a hook-shaped formation When the main body side positioning part and the unit side positioning part are fitted together, a gap is provided between the lower end of the claw part and the upper end of the stopper part. When the main body side positioning portion and the unit side positioning portion are disengaged , the transport unit falls in the direction of gravity , and the engaging portion of the fall prevention mechanism becomes the stopper portion due to the fall in the direction of gravity. It is characterized in that it engages to prevent the transport unit from further falling.

As a result, the present invention has the effect that the work time in the assembling work of the transport unit can be shortened, the efficiency of the assembly work of the medium trading device can be improved, and the transport unit can be prevented from falling. can get.

Explanatory drawing showing banknote withdrawal of embodiment Explanatory view showing the lower unit of the embodiment ((a) top view, (b) rear view, (c) side view, (d) front view) Explanatory drawing which shows the positioning pin of an Example Explanatory view showing the engaging portion and the stopper portion of the embodiment ((a) top view, (b) side view) Explanatory drawing which shows the assembly method of the transport unit and the storage of an Example Explanatory drawing which shows the mounting state to the main body part of the transport unit of an Example Explanatory drawing which shows the rotating state of the transport unit of an Example in the detaching direction Explanatory drawing which shows the rotating state of the engaging part and the stopper part of an Example in the disengaging direction. Explanatory drawing which shows the engaging state of the engaging part and the stopper part at the time of dropping of the transport unit of an Example.

Hereinafter, examples of the medium trading apparatus according to the present invention will be described with reference to the drawings.

Hereinafter, the banknote withdrawal machine of this embodiment will be described with reference to FIGS. 1 to 9.

The banknote withdrawal machine 1 as the medium transaction device of the present embodiment is installed in a store of a financial institution such as a bank, and is stored in a storage 21 (described later) according to the withdrawal amount entered by the customer. It has a function of counting the bills P as a banknote P, discharging the counted bills P from the withdrawal port 2 and delivering them to the customer, and has the configuration shown in FIG.
Further, the bill withdrawal machine 1 is composed of an upper unit 1a and a lower unit 1b.

The withdrawal port 2 is arranged above the front side of the upper unit 1a, and discharges the withdrawal bills P in a bundle while being sandwiched between the upper belt 4 and the lower belt 5 (described later), and the customer bundles the bills. A bill monitoring sensor 2a for detecting withdrawal or the like is provided.

The bill monitoring sensor 2a is an optical sensor in which a light emitting unit and a light receiving unit are arranged so as to face each other with the opening of the withdrawal port 2 interposed therebetween. Has a function to detect.

The bundle transport path 3 is arranged above the upper unit 1a, and is composed of an upper belt 4, a lower belt 5, a transport guide 6, an extrusion portion 7, and the like.

The upper belt 4 is a long endless belt hung between the pulley 4a provided in the immediate vicinity of the withdrawal port 2 and the pulley 4b provided on the rear surface side, and is the most of the bundle transport path 3. It is placed above and driven in both forward and reverse directions.

The lower belt 5 is an endless belt hung between a pulley 5a arranged to face the pulley 4a of the upper belt 4 and a pulley 5b provided at the center, and is bundled between the upper belt 4 and the pulley 5a. Hold and transport banknotes.

The transport guide 6 faces the lower surface side of the upper belt 4, is arranged on the rear surface side of the pulley 5b of the lower belt 5, and is configured to be reciprocally movable along the upper belt 4.

The extruded portion 7 is arranged on the front surface side of the pulley 4b of the upper belt 4, and is configured to be reciprocally movable along the upper belt 4, and the lower end portion is configured to be able to come and go from the lower surface of the upper belt 4. It has a function of pushing bundled banknotes toward the withdrawal port 2 side and moving them.

The upper transport path 8a is a transport path for transporting one bill P by a roller pair and / or a belt pair or a combination thereof, and as shown by a thick broken line in FIG. 1, the upper unit 1a and the lower unit 1b The upper transfer roller 9a provided in the delivery section 9 is connected to the switching mechanism 13 provided between the stacking section 11 and the reject storage 12.

The collecting unit 11 includes a discharging mechanism 11a for discharging the conveyed bills P to the inside, a stage 11b for collecting the discharged bills P in the thickness direction, and the like.
Further, the stage 11b is configured to be able to move up and down, and moves back and forth from the accumulation position where the accumulated banknotes P are accumulated to the transport position where the accumulated highest-level banknote P is pressed against the lower surface of the upper belt 4. ..

The reject storage 12 is arranged on the front side of the accumulating portion 11 and includes a discharge mechanism 12a or the like for discharging the conveyed bill P to the inside, and the reject bill at the time of withdrawal is stored.

The switching mechanism 13 is provided with a switching blade or the like for switching the transport direction of the bill P, and switches the transport direction of the bill P transported by the upper transport path 8a to the accumulating portion 11 side or the reject storage 12 side.

The forgotten storage 14 is arranged on the front side of the reject storage 12 and is provided with an opening 14a for receiving the transported banknotes P inside. Store and store.

The upper unit 1a of this embodiment includes the above-mentioned withdrawal port 2, bundle transport path 3, upper transport path 8a, accumulation unit 11, reject storage 12, forgotten storage 14, and the like.

The storage 21 is a storage for storing bills P used for withdrawal in an upright position, and is a separate feeding mechanism 22 for separating and feeding the bills P one by one, and a separate feeding mechanism for storing the stored bills P. It is provided with a pressing plate 23 or the like that is pressed against the feeding roller.

The storage 21 of this embodiment is composed of four storages 21a, 21b, 21c, and 21d for storing bills P by denomination. Further, the storage 21 is loaded in a storage frame 24 as a main body which is a frame made of sheet metal formed by bending a steel plate or the like, and is positioned by a lock mechanism (not shown).

The feeding transport path 25 is a transport path that connects the separate feeding mechanism 22 of each storage 21 and the lower transport path 8b, and is divided by a connecting portion between the storage frame 24 and the transport unit 26.

The transport unit 26 is provided with a lower transport path 8b, a discrimination unit 27, and the like inside a case made of a molded resin product.

The lower transport path 8b is a transport path for transporting one bill P by a roller pair and / or a belt pair or a combination thereof, and the bill P transported by each feeding transport path 25 is delivered to the delivery unit 9. Transport to the lower transport roller 9a.

The discrimination unit 27 is arranged between a confluence of a feeding transport path 25 and a lower transport path 8b for feeding banknotes P from the uppermost storage 21a and a transport roller 9a on the lower side of the delivery section 9 for transport. It has a function of discriminating transport abnormalities such as chaining and skewing of banknotes P.

The lower unit 1b of this embodiment includes a storage frame 24 loaded with a plurality of storages 21, a transport unit 26 containing a discrimination unit 27, and the like.

As shown in FIG. 2, the transport unit 26 of this embodiment is formed with positioning pins 31 as upper and lower two unit-side positioning portions on the side surface 26a facing the storage frame 24.
Further, a positioning hole 32 (see FIG. 5) as a main body side positioning portion is formed on the mounting surface 24a of the storage frame 24 on the side facing the transport unit 26 at a position corresponding to the positioning pin 31. ing.

The transport unit 26 is mounted on the storage frame 24 by fastening it with four mounting screws 33 in a state where the positioning pin 31 is fitted in the positioning hole 32 in the horizontal direction.

As a result, the feeding transport path 25 of this embodiment is assembled in a state where the horizontal position and the height position of the connecting portion are adjusted to appropriate positions.

The partial cross section shown in FIG. 2C is a cross section along the cross section line AA shown in FIG. 2B.
Further, the circle shown at the position of the mounting screw 33 shown in FIG. 2B is a hole for work in the fastening work of the mounting screw 33.

As shown in FIG. 3, the positioning pin 31 is formed with a cylindrical pedestal portion 31a, a cylindrical portion 31b having a diameter smaller than that of the pedestal portion 31a, and a conical pedestal portion 31c having a bottom surface having the same diameter as the cylindrical portion 31b. The columnar portion 31b fits into the positioning hole 32 via a predetermined gap allowance.

Further, when the transport unit 26 is fastened to the storage frame 24, the stepped portion 31d of the pedestal portion 31a and the columnar portion 31b is pressed against the mounting surface 24a of the storage frame 24.
The height H, which is the axial length of the cylindrical portion 31b of the positioning pin 31 of this embodiment, is formed so as to be equal to or less than the plate thickness of the mounting surface 24a of the storage frame 24.

The transport unit 26 of this embodiment is provided with engaging portions 34 at two uppermost positions on the storage frame 24 side. Further, as shown in FIG. 4, the engaging portion 34 includes a claw portion 34a formed in a claw shape.

The claw portion 34a is formed so as to be located in a stopper hole 35 formed by cutting out a part of the upper surface 24b of the storage frame 24 when the transport unit 26 is fastened to the storage frame 24. Further, on the transport unit 26 side of the stopper hole 35, a stopper portion 36 with which the claw portion 34a of the engaging portion 34 is engaged is formed.

Further, when the transfer unit 26 is fastened to the storage frame 24 after the positioning pin 31 is fitted into the positioning hole 32, between the lower end of the claw portion 34a of the engaging portion 34 and the upper end of the stopper portion 36. Is provided with a gap X, and a gap Y is provided between the tip surface of the claw portion 34a on the storage frame 24 side and the facing surface 35a of the stopper hole 35 facing the tip.
Further, a gap Z is provided between the surface of the tip of the claw portion 34a on the transport unit 26 side and the stopper portion 36.

The gap Z is set to be longer than the length L from the stepped portion 31b of the positioning pin 31 shown in FIG. 3 to the top surface of the truncated cone portion 31c, that is, Z ≧ L.
The fall prevention mechanism of this embodiment is configured by the claw portion 34a of the engaging portion 34 and the stopper portion 36 provided in the stopper hole 35.

The withdrawal operation by the banknote withdrawal machine 1 of this embodiment will be described below. The withdrawal operation described below is executed by a control unit (not shown) provided in the bill withdrawal machine 1.

When the bill withdrawal machine 1 receives an input of a withdrawal amount by a customer by an operation unit (not shown), the bill withdrawal machine 1 moves the stage 11b of the accumulation unit 11 to the lower accumulation position and moves the extrusion unit 7 of the pulley 4b of the upper belt 4. After moving the transfer guide 6 to the nearest position and moving the transfer guide 6 above the accumulating unit 11, the number of denominations of the banknote P corresponding to the withdrawal amount is calculated.

The banknote withdrawal machine 1 that has calculated the number of denominations of the banknotes P to be withdrawn pays out the banknotes P one by one from the corresponding storage 21 to the payout transport path 25 by the separate payout mechanism 22, and pays out the payout banknotes P. It is transported to the lower transport path 8b by the path 25.
At this time, since the transport unit 26 of this embodiment is positioned with respect to the storage frame 24 by fitting the positioning pin 31 and the positioning hole 32, the bill P is not caught at the connection portion of the feeding transport path 25. , Is transported smoothly.

The banknote withdrawal machine 1 that has conveyed the banknote P drawn out from the storage 21 to the lower transport path 8b conveys the banknote P to the discrimination unit 27, the discrimination unit 27 discriminates the transport state, and the discrimination unit 27 corrects the bill P. The bill P identified as a ticket is transported from the lower transport path 8b to the upper transport path 8a via the delivery section 9, the transport direction is switched by the switching mechanism 13, and the bill P is placed on the stage 11b by the release mechanism 11a of the stacking section 11. It is released and accumulated to count the number of denominations.

At this time, the banknote P discriminated from the rejected banknote by the discriminating unit 27 due to a transport abnormality such as double feeding is transported from the lower transport path 8b to the upper transport path 8a via the delivery section 9, and is transported in the transport direction by the switching mechanism 13. Is switched and discharged into the reject chamber 12 by the discharge mechanism 12a and accumulated.

Then, when the bill withdrawal machine 1 finishes collecting the bills P corresponding to the withdrawal amount in the collecting portion 11, the transfer guide 6 is moved forward, and the stage 11b of the collecting unit 11 is moved from the collecting position to the transporting position. By moving, the upper surface of the stage 11b and the upper surface of the transfer guide 6 are flush with each other, the upper belt 4 and the lower belt 5 are driven in the transfer direction, and the extrusion portion 7 is moved forward to be integrated in the accumulation portion 11. The bundled banknotes are transported in the direction of the withdrawal port 2 as a bundle.

The bill withdrawal machine 1 that conveys the bundled bills in the direction of the withdrawal port 2 drives the upper belt 4 and the lower belt 5 after a predetermined time has elapsed from the time when the bill monitoring sensor 2a detects the tip of the bundled bills. The banknotes are stopped, the front end of the bundle of banknotes is projected from the withdrawal port 2, and the rear end is ejected while being sandwiched between the upper belt 4 and the lower belt 5.

When the banknote withdrawal machine 1 that discharges the bundled banknotes to the withdrawal port 2 continues to monitor the state of the bundled banknotes by the banknote monitoring sensor 2a, and the bundled banknotes are pulled out by the customer and the existence of the bundled banknotes is no longer detected. In addition, this withdrawal operation is terminated.

When the bundled banknotes are ejected to the withdrawal port 2, if the banknote monitoring sensor 2a continues to detect the presence of the bundled banknotes even after a predetermined waiting time has elapsed, the banknote withdrawal machine 1 has forgotten to remove the banknotes. After determining that, the transport guide 6 is moved backward, the extrusion portion 7 is moved upward, and then the upper belt 4 and the lower belt 5 are driven in the opposite directions to transport the bundled banknotes backward, and after the bundled banknotes. When the end passes through the extrusion section 7, the extrusion section 7 is moved downward, and then moved backward to assist the transport of the bundled banknotes to the rear, and the bundled banknotes are forgotten and dropped into the storage 14. And store it.
In this way, the withdrawal operation by the banknote withdrawal machine 1 of the present embodiment is performed.

Hereinafter, a method of assembling the transport unit 26 and the storage 21 of the present embodiment to the storage frame 24 will be described with reference to FIG.

When assembling the transport unit 26 to the storage frame 24, the transport unit 26 is moved in the horizontal direction indicated by the arrow C in FIG. 5, that is, in the direction of the storage frame 24, and the positioning pin 31 is moved to the mounting surface of the storage frame 24. It is inserted into the positioning hole 32 formed in 24a to be fitted, and fastened to the storage frame 24 using the mounting screw 33 for mounting.

When the positioning pin 31 is fitted into the positioning hole 32, the claw portion 34a of the engaging portion 34 moves horizontally toward the stopper hole 35, passes through the upper end of the stopper portion 36, and passes through the upper end of the stopper portion 36 to form the positioning pin 31. It stops when the stepped portion 31d comes into contact with the mounting surface 24a.

At this time, a gap X is provided between the lower end of the claw portion 34a of the engaging portion 34 of the present embodiment and the upper end of the stopper portion 36, and between the tip of the claw portion 34a and the facing surface 35a of the stopper hole 35. Since a gap Y is provided in the (see FIG. 4), the engaging portion 34 does not come into contact with the storage frame 24 when the transport unit 26 is assembled, facilitating the assembly work of the transport unit 26. The working time can be shortened.

Next, each storage 21 is inserted in the horizontal direction indicated by the arrow D in the figure, that is, in the direction of the storage frame 24, and is positioned and loaded by a lock mechanism (not shown).
In this way, the main part of the lower unit 1b of this embodiment is assembled.

Below, when assembling the transport unit 26 to the storage frame 24, when the hand holding the transport unit 26 is slipped due to an error while inserting the positioning pin 31 into the positioning hole 32, or the hand The fall prevention of the transport unit 26 when the positioning pin 31 is disengaged from the positioning hole 32 when the position is released will be described.

When the positioning pin 31 is disengaged from the positioning hole 32, the cylindrical portion 31b (see FIG. 3) of the lower positioning pin 31 comes into contact with the lower end of the positioning hole 32, and as shown in FIG. 6, the transport unit 26 of this embodiment Since the center of gravity of the above is located on the rear side of the upper part, as shown in FIG. 7, the contact portion between the cylindrical portion 31b of the positioning pin 31 and the lower end of the positioning hole 32 is rotated by the rotational moment due to the component force of gravity G. As the center, it starts to rotate in the out-of-direction direction shown in FIG.

At this time, as shown in FIG. 8, the engaging portion 34 starts to rotate in the disengagement direction from the normal position after the assembly is completed shown by the broken line, and the lower end of the stepped portion 31d of the positioning pin 31 is the storage frame 24. When the positioning pin 31 is disengaged from the positioning hole 32 by pushing the mounting surface 24a of the above, as shown in FIG. The portion 34a engages with the stopper portion 36, and the transfer unit 26 stops falling.

Further, in this embodiment, a gap Z is provided between the tip of the claw portion 34a of the engaging portion 34 and the stopper portion 36, and the gap Z is formed from the stepped portion 31d of the positioning pin 31 to the top of the truncated cone portion 31c. Since the length to the surface is set to be L (see FIG. 3) or more (Z ≧ L), the restoration work after the transfer unit 26 is dropped becomes easy.

In this case, if Z <L is set, when the transport unit 26 is dropped, the claw portion 34a engages with the stopper portion 36 while the positioning pin 31 remains in contact with the positioning hole 32. , It becomes difficult to remove the transport unit 26 from the storage frame 24, and it takes time for the subsequent restoration work.

When the transfer unit 26 is assembled, if the positioning pin 31 comes off from the positioning hole 32 and the truncated cone portion 31c (see FIG. 3) of the lower positioning pin 31 comes into contact with the lower end of the positioning hole 21. Since the slope of the truncated cone portion 31c slides down on the lower end of the positioning hole 32, the claw portion 34a of the engaging portion 34 engages with the stopper portion 36, and the falling of the transport unit 26 is stopped.

As described above, in the fall prevention mechanism of the present embodiment, before the transfer unit 26 is fastened, the transfer unit 26 rotates in a direction away from the storage frame 24 around the fitting portion between the positioning pin 31 and the positioning hole 32. Occasionally, the positioning pin 31 and the positioning hole are provided so that the engaging portion 34 does not engage with the stopper portion 36 and the engaging portion 34 engages with the stopper portion 36 when the transport unit 26 falls off the storage frame 24. A fitting portion with 32, a claw portion 34a of the engaging portion 34, and a stopper portion 36 are arranged.

As described above, in the present embodiment, the transport unit 26 is provided with the engaging portion 34 having the claw portion 34a, and the storage frame 24 is provided with the stopper hole 35 having the stopper portion 36 formed therein, and the lower end of the claw portion 34a is provided. A gap X is provided between the upper end of the stopper portion 36 and a gap Y is provided between the tip surface of the claw portion 34a and the facing surface 35a of the stopper hole 35. The transport unit 26 can be assembled to the storage frame 24 simply by inserting the positioning pin 31 into the positioning hole 32 and fitting the portion 34 without contacting the portions 34, thus shortening the work time in the assembling work. , The efficiency of the assembly work of the bill withdrawal machine 1 can be improved.

Further, since the gap X is provided between the lower end of the claw portion 34a of the engaging portion 34 and the upper end of the stopper portion 36, the positioning pin 31 can be inserted into the positioning hole 32 in the horizontal direction, and the transport unit can be inserted. It is possible to improve the positioning accuracy of the feeding transfer path 25 connecting between the 26 and the storage frame 24, and it is possible to prevent the occurrence of jam due to the banknote P being caught during transportation.

Further, when the gap between the tip of the claw portion 34a of the engaging portion 34 and the stopper portion 36 is Z, and the length L from the stepped portion 31d of the positioning pin 31 to the top surface of the truncated cone portion 31c is set. , Z ≧ L is set so that the transport unit 26 can be prevented from falling and the restoration work after the fall can be easily performed.

In the above embodiment, the transport unit 26 of the bill withdrawal machine 1 has been described as an example. If the present invention is applied to an object that is positioned and fastened from the direction, the same effect as described above can be obtained.

Further, in the above embodiment, it has been described that the engaging portions 34 are provided at two locations on the uppermost portion of the transport unit 26, but any position can be provided as long as the transport unit 26 can be prevented from falling. Often, the number may be one or three or more.

Further, in the above embodiment, the case where the engaging portion 34 is a molded product of resin and the stopper portion 36 is made of sheet metal has been described as an example, but the engaging portion 34 is made of sheet metal and the stopper portion 36 is a molded product. However, both may be made of a molded product or a sheet metal, and may be made of rubber or the like as long as they have a strength capable of withstanding the impact when dropped.

1 Banknote withdrawal machine 1a Upper unit 1b Lower unit 2 Withdrawal port 2a Banknote monitoring sensor 3 Bundle transport path 4 Upper belt 4a, 4b, 5a, 5b Pulley 5 Lower belt 6 Transport guide 7 Extruder 8a Upper transport path 8b Lower transport Road 9 Delivery part 9a Conveyance roller 11 Accumulation part 11a, 12a Discharge mechanism 11b Stage 12 Reject storage 13 Switching mechanism 14 Forgotten storage 21, 21a to 21d Storage 22 Separation feeding mechanism 23 Press plate 24 Storage frame 24a Mounting surface 25 Transport path 26 Transport unit 26a Side surface 27 Identification part 31 Positioning pin 31a Pedestal part 31b Cylindrical part 31c Conical base part 31d Stepped part 32 Positioning hole 33 Mounting screw 34 Engagement part 34a Claw part 35 Stopper hole 35a Facing surface 36 Stopper part

Claims (3)

A storage for storing media and
The main body for loading the storage and
A transport unit attached to the main body and transporting the medium in the storage.
A medium trading device including an engaging portion provided on the transport unit and a fall prevention mechanism provided on the main body portion and having a stopper portion that engages with the engaging portion.
The main body portion is provided with a main body side positioning portion on the mounting surface on which the transfer unit is mounted, and the transfer unit is provided with a unit side positioning portion that fits into the main body portion side positioning portion.
The engaging portion has a claw portion having a claw shape formed therein.
When the main body side positioning portion and the unit side positioning portion are fitted, a gap is provided between the lower end of the claw portion and the upper end of the stopper portion.
When the main body side positioning portion and the unit side positioning portion are disengaged , the transport unit falls in the direction of gravity , and the engaging portion of the fall prevention mechanism becomes the stopper portion due to the fall in the direction of gravity. A medium trading device characterized in that the transport unit is further engaged with the transport unit to prevent it from falling further. In the medium trading apparatus according to claim 1,
A medium trading device characterized in that the main body side positioning portion and the unit side positioning portion are fitted in a horizontal direction, and the transfer unit is fastened to the main body portion. In the medium trading apparatus according to claim 2,
Before fastening the transport unit, the transport unit rotates around the fitting position between the main body side positioning portion and the unit side positioning portion in a direction away from the main body portion, and is positioned on the main body side. A medium trading device, characterized in that the engaging portion engages with the stopper portion when the unit and the unit-side positioning portion are disengaged and the transport unit falls from the main body portion.

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