JP2018045628A - Medium transaction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide means for improving positional accuracy when assembling a main body part and a conveyance unit and for improving the assembly workability of the conveyance unit to the main body part.SOLUTION: A medium transaction device includes a storage chamber which stores a medium, the main body part to which the storage chamber is loaded, and the conveyance unit which is attached to the main body part and conveys the medium in the storage chamber. A main body-side positioning part is provided in the attachment surface to which the conveyance unit is attached of the main body part and a unit-side positioning part fitted to the main body part-side positioning part is provided in the conveyance unit. The medium transaction device includes a drop prevention mechanism which prevents the drop of the conveyance unit, when the fitting of the main body part-side positioning part and the unit-side positioning part is released.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a medium transaction apparatus such as a banknote dispensing machine that conveys a medium such as banknotes from a storage box to a discharge port such as a dispensing port, and delivers it to a customer, and in particular, when a conveyance unit provided in the medium transaction apparatus is attached. It relates to a fall prevention structure.

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

JP 2010-153640 (paragraphs 0011, 0015-0016, FIGS. 3 and 4)

  However, if the conventional mounting structure described above is applied to the mounting of the transport unit to the main body of the medium transaction apparatus, after the transport unit having a relatively heavy weight is lifted once and the bent portion is locked to the stopper portion, There is a problem that it is necessary to fasten the groove portion by fitting it into the mounting screw, and it takes time to assemble the transport unit.

  Moreover, in the medium transaction apparatus, since the conveyance path connecting between the storage unit loaded in the main body unit and the conveyance unit is divided by the attachment portion between the main body unit and the conveyance unit, the height direction and the horizontal direction High positional 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 is loosened due to vibration or the like during transport of the medium, There is a problem that misalignment occurs in the direction, and the medium being transported may be caught to cause jamming.

  The present invention was made to solve the above-described problems, and improves the positional accuracy when the main body and the transport unit are assembled, and improves the workability of assembling the transport unit to the main body. It aims to provide a means.

  In order to solve the above-described problems, the present invention provides a storage for storing a medium, a main body for loading the storage, a transport unit attached to the main body and transporting a medium in the storage, And a unit-side positioning unit that is provided with a body-side positioning portion on a mounting surface of the body portion to which the transport unit is attached, and that is fitted to the body-side positioning portion on the transport unit. And a drop prevention mechanism for preventing the transport unit from dropping when the fitting between the main body portion side positioning portion and the unit side positioning portion is released.

  Thereby, the present invention can shorten the work time in the assembly work of the transport unit, can improve the efficiency of the assembly work of the medium transaction apparatus, and can prevent the transport unit from falling. can get.

Explanatory drawing which shows the banknote payment of an Example Explanatory drawing which shows the lower unit of an Example ((a) Top view, (b) Rear view, (c) Side view, (d) Front view) Explanatory drawing which shows the positioning pin of an Example Explanatory drawing which shows the engaging part and stopper part of an Example ((a) top view, (b) side view) Explanatory drawing which shows the assembly method of the conveyance unit of an Example, and storage. Explanatory drawing which shows the attachment state to the main-body part of the conveyance unit of an Example. Explanatory drawing which shows the rotation state to the removal direction of the conveyance unit of an Example. Explanatory drawing which shows the rotation state to the disengagement direction of the engaging part and stopper part of an Example Explanatory drawing which shows the engagement state of the engaging part at the time of fall of the conveyance unit of an Example, and a stopper part

  Embodiments of a medium transaction apparatus according to the present invention will be described below with reference to the drawings.

  Below, the banknote dispensing machine of a present Example is demonstrated using FIG. 1 thru | or FIG.

A banknote dispensing machine 1 as a medium transaction apparatus according to the present embodiment is installed in a store of a financial institution such as a bank, and is stored in a storage box 21 (described later) according to a withdrawal amount input by a customer. The bill P is counted, and the counted bill P is discharged from the dispensing port 2 and delivered to the customer, and the configuration shown in FIG. 1 is provided.
Moreover, the banknote dispenser 1 includes an upper unit 1a and a lower unit 1b.

  The withdrawal port 2 is disposed above the front side of the upper unit 1a, and discharges the banknotes P to be dispensed while being bundled between the upper belt 4 and the lower belt 5 (described later), A banknote monitoring sensor 2a for detecting withdrawal or the like is provided.

  The banknote monitoring sensor 2a is an optical sensor in which the light emitting part and the light receiving part are arranged to face each other with the opening of the dispensing port 2 interposed therebetween, and the presence of the banknote P by the banknote P blocking the light from the light emitting part. It has a function to detect.

  The bundle conveyance path 3 is disposed above the upper unit 1a and includes an upper belt 4, a lower belt 5, a conveyance guide 6, an extrusion unit 7, and the like.

  The upper belt 4 is a long endless belt stretched between a pulley 4a provided in the immediate vicinity of the dispensing port 2 and a pulley 4b provided on the rear surface side, It is arranged above and is driven in both forward and reverse directions.

  The lower belt 5 is an endless belt that is stretched between a pulley 5 a that is disposed opposite to the pulley 4 a of the upper belt 4 and a pulley 5 b that is provided at the center, and is bundled between the lower belt 5 and the upper belt 4. Hold the banknotes and transport them.

  The conveyance guide 6 faces the lower surface side of the upper belt 4, is disposed on the rear surface side of the pulley 5 b of the lower belt 5, and is configured to reciprocate along the upper belt 4.

  The extruding part 7 is arranged on the front side of the pulley 4b of the upper belt 4 and is configured to be able to reciprocate along the upper belt 4, and the lower end part is configured to be able to protrude from the lower surface of the upper belt 4, It has a function to push and move a bundle of bills to the withdrawal port 2 side.

  The upper transport path 8a is a transport path for transporting one banknote 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 switching mechanism 13 provided between the stacking unit 11 and the reject container 12 is connected from the upper conveying roller 9a provided in the delivery unit 9.

The stacking unit 11 includes a discharge mechanism 11a that discharges the conveyed banknote P and a stage 11b that stacks the released banknote P in the thickness direction.
Further, the stage 11 b is configured to be movable up and down, and reciprocates between a stacking position where the banknotes P are stacked and a transport position where the stacked uppermost banknotes P are pressed against the lower surface of the upper belt 4. .

  The reject box 12 is disposed on the front side of the stacking unit 11 and includes a discharge mechanism 12a that discharges the conveyed banknote P to the inside thereof, and stores reject banknotes at the time of withdrawal.

  The switching mechanism 13 includes a switching blade or the like for switching the conveyance direction of the bills P, and switches the conveyance direction of the bills P conveyed by the upper conveyance path 8a to the stacking unit 11 side or the reject box 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 conveyed banknote P therein. Store and store.

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

  The storage 21 is a storage that stores banknotes P used for withdrawal in an upright position. The storage 21 separates and feeds the banknotes P one by one. A pressing plate 23 or the like that is pressed against the feeding roller is provided.

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

  The feeding conveyance path 25 is a conveyance path that connects between the separation feeding mechanism 22 of each storage 21 and the lower conveyance path 8 b, and is divided at a connection portion between the storage frame 24 and the conveyance unit 26.

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

  The lower transport path 8b is a transport path that transports one banknote P by a roller pair and / or a belt pair or a combination thereof, and the banknote P transported by each feeding transport path 25 It conveys to the lower conveyance roller 9a.

  The discrimination unit 27 is disposed between the junction between the feeding conveyance path 25 that feeds the banknotes P from the uppermost storage 21a and the lower conveyance path 8b, and the conveyance roller 9a below the delivery unit 9, and conveys it. It has a function of discriminating a conveyance abnormality such as chaining or skewing of the banknotes P.

  The lower unit 1b of the present embodiment includes a storage frame 24 loaded with a plurality of storage boxes 21, a transport unit 26 with a built-in discrimination unit 27, and the like.

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

  The transport unit 26 is attached to the storage frame 24 by fastening with four mounting screws 33 in a state where the positioning pins 31 are fitted in the positioning holes 32 in the horizontal direction.

  Thereby, the delivery conveyance path 25 of the present embodiment is assembled in a state where the position in the horizontal direction and the position in the height direction at the connection portion are respectively adjusted to appropriate positions.

In addition, the partial cross section shown in FIG.2 (c) is a cross section along the cross-sectional line AA shown in FIG.2 (b).
A circle shown at the position of the mounting screw 33 shown in FIG. 2B is a work hole 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 smaller diameter than the pedestal portion 31a, and a truncated cone portion 31c having a bottom surface having the same diameter as the cylindrical portion 31b. The cylindrical portion 31b is fitted into the positioning hole 32 through a predetermined clearance.

Further, when the transport unit 26 is fastened to the storage frame 24, the stepped portion 31 d of the pedestal portion 31 a and the columnar portion 31 b is pressed against the mounting surface 24 a 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 to be equal to or less than the plate thickness of the mounting surface 24a of the storage frame 24.

  In the transport unit 26 of the present embodiment, engaging portions 34 are provided at the two uppermost positions on the storage frame 24 side. Moreover, as shown in FIG. 4, the engaging part 34 is provided with the nail | claw part 34a formed in the nail | claw shape.

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

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

This 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 above-described claw portion 34a of the engaging portion 34 and the stopper portion 36 provided in the stopper hole 35 constitute the fall prevention mechanism of this embodiment.

  Below, the payment operation | movement by the banknote payment machine 1 of a present Example is demonstrated. Note that the dispensing operation described below is executed by a control unit (not shown) provided in the banknote dispensing machine 1.

  When the banknote dispensing machine 1 accepts the input of the withdrawal amount by the customer through an operation unit (not shown), the stage 11b of the stacking unit 11 is moved to the lower stacking position, and the pushing unit 7 is moved to the pulley 4b of the upper belt 4. After moving to the nearest position and moving the conveyance guide 6 above the stacking unit 11, the number of denominations of the banknote P corresponding to the withdrawal amount is calculated.

The banknote dispensing machine 1 that has calculated the number of denominations of the banknotes P to be withdrawn feeds the banknotes P one by one from the corresponding storage 21 to the feeding transport path 25 by the separating and feeding mechanism 22 and feeds the banknotes P fed out. It is conveyed to the lower conveyance path 8b by the path 25.
At this time, since the transport unit 26 of the present embodiment is positioned with respect to the storage frame 24 by fitting the positioning pins 31 and the positioning holes 32, the bills P are not caught at the connection portion of the feeding transport path 25. , Transported smoothly.

  The banknote dispensing machine 1 that has transported the banknote P fed out from the storage 21 to the lower transport path 8b transports the banknote P to the discrimination section 27, discriminates the transport state by the discrimination section 27, and corrects it by the discrimination section 27. The banknote P discriminated from the ticket is transported from the lower transport path 8b to the upper transport path 8a via the delivery section 9, and the transport direction is switched by the switching mechanism 13, and the discharge mechanism 11a of the stacking section 11 places it on the stage 11b. Release and accumulate to count the number of denominations.

  At this time, the banknote P discriminated from the rejected banknote by the discrimination section 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 by the switching mechanism 13 in the transport direction. Are switched and released into the reject box 12 by the release mechanism 12a.

  And the banknote dispensing machine 1 will move the conveyance guide 6 ahead, and will complete | finish the stage 11b of the stacking part 11 from a stacking position to a conveyance position, if the stacking | pasting of the banknote P corresponded to payment amount to the stacking part 11 is completed. The upper surface of the stage 11b and the upper surface of the conveyance guide 6 are flush with each other, the upper belt 4 and the lower belt 5 are driven in the conveyance direction, and the extrusion unit 7 is moved forward to be accumulated in the accumulation unit 11. A bundle of banknotes is conveyed in the direction of the withdrawal port 2 as a bundle.

  The banknote dispensing machine 1 that transports the bundled banknotes in the direction of the withdrawal port 2 drives the upper belt 4 and the lower belt 5 after a predetermined time has elapsed since the banknote monitoring sensor 2a detected the leading edge of the bundled banknotes. It stops, and the front-end | tip part of a banknote is protruded from the dispensing port 2, and it discharges | emits in the state clamped by the upper belt 4 and the lower belt 5 at the rear-end part.

  When the banknote dispenser 1 that has discharged the bundled banknotes to the withdrawal port 2 continues monitoring the state of the bundled banknotes by the banknote monitoring sensor 2a, the bundled banknotes are pulled out by the customer and the presence of the bundled banknotes is no longer detected Finally, the current withdrawal operation is terminated.

When the banknote monitoring sensor 2a continues to detect the presence of a bundled banknote even when a predetermined waiting time has elapsed when the bundled banknote is discharged to the withdrawal port 2, the banknote dispensing machine 1 has been forgotten to be removed. After moving the conveyance guide 6 backward and moving the extrusion unit 7 upward, the upper belt 4 and the lower belt 5 are driven in the reverse direction to convey the bundled bills backward, When the end passes through the pushing part 7, the pushing part 7 is moved downward, and then moved backward, thereby assisting the backward conveyance of the bundled banknotes and forgetting the bundled banknotes and dropping them into the storage case 14. And store.
In this way, the dispensing operation by the banknote dispensing machine 1 of the present embodiment is performed.

  Below, the assembly method to the storage frame 24 of the conveyance unit 26 and the storage 21 of a present Example is demonstrated using FIG.

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

  When the positioning pin 31 is fitted into the positioning hole 32, the claw portion 34 a of the engaging portion 34 moves in the horizontal direction toward the stopper hole 35, passes through the upper end of the stopper portion 36, and 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 and the upper end of the stopper portion 36 of the present embodiment, and between the tip of the claw portion 34a and the opposing surface 35a of the stopper hole 35. Is provided with a gap Y (see FIG. 4), the engaging portion 34 does not come into contact with the storage frame 24 when the transport unit 26 is assembled, and the assembly work of the transport unit 26 is facilitated. The work time can be shortened.

Next, each storage 21 is inserted in the horizontal direction indicated by arrow D in the drawing, that is, in the direction of the storage frame 24, and 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.

  In the following, when the transport unit 26 is assembled to the storage frame 24, when the hand that lifted the transport unit 26 is slipped due to an error while the positioning pin 31 is being inserted into the positioning hole 32, The prevention of dropping of the transport unit 26 when the positioning pin 31 is removed from the positioning hole 32 will be described.

  When the positioning pin 31 is removed 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. Since the center of gravity exists on the rear side of the upper portion, 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 force of gravity G. As a center, it starts to rotate in the direction of detachment 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 shown by the broken line, and the lower end of the stepped portion 31 d of the positioning pin 31 is the storage frame 24. When the positioning pin 31 is removed from the positioning hole 32 by pushing the mounting surface 24a, the nail of the engaging portion 34 falls as shown in FIG. The portion 34a engages with the stopper portion 36, and the transfer unit 26 stops dropping.

  In the present embodiment, a gap Z is provided between the tip of the claw 34 a of the engaging portion 34 and the stopper 36, and the gap Z extends from the stepped portion 31 d of the positioning pin 31 to the top of the truncated cone portion 31 c. Since the length to the surface L (see FIG. 3) is set to be greater than or equal to (Z ≧ L), recovery work after the transport unit 26 is dropped is facilitated.

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

  When the conveying unit 26 is assembled, if the positioning pin 31 is detached from the positioning hole 32 and the truncated cone portion 31c (see FIG. 3) of the lower positioning pin 31 is in contact with the lower end of the positioning hole 21, Since the inclined surface of the truncated cone part 31c slides and falls on the lower end of the positioning hole 32, the claw part 34a of the engaging part 34 engages with the stopper part 36, and the transfer unit 26 stops dropping.

  As described above, in the fall prevention mechanism of the present embodiment, before the conveyance unit 26 is fastened, the conveyance 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. Sometimes the engaging portion 34 is not engaged with the stopper portion 36 and the positioning pin 31 and the positioning hole are arranged so that the engaging portion 34 engages with the stopper portion 36 when the transport unit 26 falls off the storage frame 24. 32, a claw part 34a of the engaging part 34, and a stopper part 36 are arranged.

  As described above, in the present embodiment, the conveyance 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 in which the stopper portion 36 is formed. Since the clearance X is provided between the upper end of the stopper portion 36 and the clearance Y is provided between the tip surface of the claw portion 34a and the opposing surface 35a of the stopper hole 35, it is engaged when the transport unit 26 is assembled. The part 34 does not come into contact, and the conveying unit 26 can be assembled to the storage frame 24 simply by inserting the positioning pin 31 into the positioning hole 32 and fitting it, thereby reducing the work time in the assembling work. The efficiency of the assembly work of the banknote dispenser 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 It is possible to improve the positioning accuracy of the feeding conveyance path 25 that connects between the storage frame 24 and the storage frame 24, and it is possible to prevent jamming due to catching of the banknote P being conveyed.

  Furthermore, when the clearance between the tip of the claw part 34a of the engaging part 34 and the stopper part 36 is Z, and the length L from the stepped part 31d of the positioning pin 31 to the top surface of the truncated cone part 31c is L. Since Z ≧ L, the conveyance unit 26 can be prevented from falling and the recovery operation after dropping can be easily performed.

  In addition, in the said Example, although demonstrated the conveyance unit 26 of the banknote dispensing machine 1 as an example, units, such as a conveyance unit, are horizontal by the banknote depositing / withdrawing machine etc. which are mounted in an automatic teller machine, a cash processing machine, etc. If the present invention is applied to what is positioned and fastened from the direction, the same effect as described above can be obtained.

  In the above embodiment, the two engaging portions 34 are provided at the uppermost portion of the transport unit 26. However, any position can be used as long as the transport unit 26 can be prevented from dropping. The number may be one or three or more.

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

DESCRIPTION OF SYMBOLS 1 Banknote dispenser 1a Upper unit 1b Lower unit 2 Withdrawal port 2a Banknote monitoring sensor 3 Bundle conveyance path 4 Upper belt 4a, 4b, 5a, 5b Pulley 5 Lower belt 6 Transport guide 7 Extrusion part 8a Upper conveyance path 8b Lower conveyance Road 9 Delivery section 9a Conveying roller 11 Stacking section 11a, 12a Release mechanism 11b Stage 12 Reject storage 13 Switching mechanism 14 Forgotten storage 21, 21a-21d storage 22 Separation feeding mechanism 23 Press plate 24 Storage frame 24a Mounting surface 25 Conveying path 26 Conveying unit 26a Side surface 27 Identification part 31 Positioning pin 31a Pedestal part 31b Cylindrical part 31c Frustum part 31d Stepped part 32 Positioning hole 33 Mounting screw 34 Engaging part 34a Claw part 35 Stopper hole 35a Opposing surface 36 Stopper part

Claims (5)

A storage for storing media;
A main body for loading the storage;
A medium transaction apparatus comprising: a transport unit that is attached to the main body and transports the medium in the storage;
A main body side positioning portion is provided on a mounting surface of the main body portion on which the transport unit is mounted, and a unit side positioning portion that is fitted to the main body portion side positioning portion is provided in the transport unit,
A medium transaction apparatus comprising a fall prevention mechanism for preventing the conveyance unit from dropping when the main body side positioning part and the unit side positioning part are disengaged. The medium transaction apparatus according to claim 1,
A medium transaction apparatus, wherein the main body side positioning portion and the unit side positioning portion are fitted in a horizontal direction, and the transport unit is fastened to the main body portion. In the medium transaction apparatus of Claim 1 or Claim 2,
The fall prevention mechanism includes an engaging part provided in the transport unit, and a stopper part provided in the main body part and engaged with the engaging part. The medium transaction apparatus according to claim 3,
The engaging portion has a claw portion in which a claw shape is formed,
A medium transaction apparatus, wherein a gap is provided between a lower end of the claw portion and an upper end of the stopper portion when the main body side positioning portion and the unit side positioning portion are fitted. In the medium transaction apparatus of Claim 3 or Claim 4,
Before the transport unit is fastened, the transport unit rotates in a direction away from the main body portion around a fitting position between the main body portion side positioning portion and the unit side positioning portion, and the main body portion side positioning is performed. When the transport unit is dropped from the main body part when the fitting between the part and the unit side positioning part is released, the engaging part engages with the stopper part.

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