KR101520493B1 - Appratus for receiving and dispensing notes in automated teller machine - Google Patents

Abstract

The present invention relates to a banknote receipt and payout apparatus for a banking automation apparatus having a back plate structure that enables retraction and return of a push plate of a temporary storage unit. In the banknote receipt and payout apparatus of the present invention, the push plate of the replenishment recovery section rises to the temporary storage section and separates and stacks the banknotes using the separation stack section of the temporary storage section. The temporary storage section includes a fixed back plate, And a rotatable rear door disposed at a lower portion of the fixed rear plate for guiding the lifting and lowering of the banknote. The rear door includes a door shaft rotatably connected to a case or another frame of the temporary storage unit, A door comprising two plates orthogonal to each other and a pressing member for applying a force to vertically raise the door, and when the push plate rotates for evacuation, an end portion of the push plate contacts the two plates The door is rotated about the door axis, and when the push plate is completely retracted, The contact between the end portion of the push plate and one of the two plates of the door is released and the other one of the two plates is vertically erected and the push plate is reversed when retracted .

Push plate, fixed back plate, rear door, pressure member, retract, return

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automated teller machine

FIELD OF THE INVENTION The present invention relates to a banknote depositing and dispensing apparatus for a banking automation apparatus. More particularly, the present invention relates to a banknote depositing and dispensing apparatus for a banking automation apparatus having a back plate structure that enables retraction and return of a push plate of a temporary storage section.

2. Description of the Related Art In general, an ATM (Automated Teller Machine) includes an input unit for inputting information, a screen for displaying a financial service menu and a transaction status, and a banknote deposit / And a cash deposit / withdrawal is performed by the customer through the banknote deposit / withdrawal device.

1 is a view showing a schematic configuration of a banknote receipt and payout apparatus 1 of a general banking automation apparatus.

The banknote deposit and withdrawal apparatus 1 includes a control unit (not shown) for controlling the entire apparatus including the deposit and withdrawal of banknotes, a deposit and withdrawal unit 2 for the customer to deposit or receive the banknote for deposit and withdrawal, A discriminating unit 6 provided on the conveying path 5 for discriminating the presence or absence of an abnormality of the banknote, a plurality of banknotes storing the deposited banknote, Boxes 7 (7a, 7b, 7c, 7d) are provided.

The bank note depositing and dispensing apparatus 1 further includes a temporary storage section 20 for temporary storage of bank notes, a replenishment return section 10 for replenishing bank notes with the bank note storage box 7 or retrieving bank notes from the bank note storage box, And a reject box 8 in which banknotes and the like are stored.

In the deposit transaction, when the customer inserts banknotes into the deposit space (a), the separating section (3) separates the banknotes one by one and transfers them to the conveying route (5). The banknotes taken out to the conveying path 5 pass through the discriminating section 6 to discriminate the presence or absence of a banknote. After passing through the judging section 6, the banknote discriminated as the normal banknote in the judging section (hereinafter, the normal banknote bank) is stored in the temporary storage section 20, and the banknote judged as the ideal banknote (hereinafter referred to as reject banknote) (b), the customer can re-deposit.

The banknotes judged as normal banknotes by the discrimination unit 6 are temporarily stored in the storage unit 20 and then stored in the banknote storage box 7 through the conveying route 5 by the customer's deposit request.

In the withdrawal transaction, when the customer requests withdrawal, the banknotes stored in the banknote storage box 7 are sent to the conveying route 5 and pass through the discriminating section 6. [ The normal banknotes are stacked and sorted into the withdrawal space b by the stack portion 4, and then withdrawn by the customer. At this time, the bills judged to be rejected bills in the judging unit 6 are stored in the temporary storage unit 20 and then sent to the reject box 8 and stored.

The banknotes of different denominations or banknotes of the same category are loaded on the banknote storage boxes 7a, 7b, 7c and 7d, and banknotes of the corresponding denomination requested by the customer by the signal of the control unit are transferred to the banknote storage box 7 ) Or deposited by the customer through the deposit-and-withdrawal portion 2 and stacked on the banknote storage box 7.

Normally, the number of banknotes deposited / withdrawn through the automated teller machine is on the order of 7: 3 on average, so if the deposit / withdrawal process is repeated, the banknote stored in the banknote storage box 7 may be insufficient. The replenishment recovery unit 10 is additionally provided in case the banknote storage box 7 lacks banknotes. The replenishment recovery unit is not used for the banknote deposit and withdrawal, and replenishes the banknote required for the banknote storage box 7 Or to recover the paper money stored in the paper money storage box.

2 is a diagram showing a schematic configuration of the temporary storage section 20 and the replenishment / recovery section 10. As shown in FIG.

The temporary storage unit 20 and the replenishing / returning unit 10 are often located in the banknote receipt and payout apparatus 1 in the upper and lower positions, as shown in FIG.

The replenishment recovery unit 10 and the temporary storage unit 20 have respective separation stack units 11 and 21 composed of a pickup roller, a feed roller and a guide roller. When separating the paper money, the push plates 12 and 22 are raised and lowered toward the separating stack sections 11 and 21 to separate the banknotes.

However, since the separation stack portions 11 and 21 made up of three rollers are relatively expensive devices, only one separating stack portion is provided in the temporary storage portion 20 and the replenishing / collecting portion 10 positioned at the upper and lower positions, It would be very helpful to reduce the cost of the financial automation equipment.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a banknote depositing and dispensing apparatus for a banknote automation apparatus that can commonly use a temporary storage section, And an object of the present invention is to provide a banknote depositing and dispensing apparatus for a banking automation apparatus having a backplane structure that enables retraction and return of a push plate of a storage unit.

The banknote depositing and dispensing apparatus of the present invention includes a temporary storage unit and a replenishment recovery unit located at a lower portion of the temporary storage unit. When separating and stacking the banknotes through the replenishment recovery unit, the push plate of the temporary storage unit rotates The push plate of the replenishment recovery section rises to the temporary storage section and separates and stacks the banknotes by using the separation stack section of the temporary storage section, and the temporary storage section is fixedly arranged on the rear surface of the path in which the push plate is lifted and lowered And a rotatable rear door disposed at a lower portion of the fixed rear plate for guiding the lifting and lowering of the banknote, wherein the rear door is connected to a case or another frame of the temporary storage section and rotates A door which is constituted by two plates fixed to the door shaft and perpendicular to each other; Wherein when the push plate rotates for retraction, the end of the push plate contacts one of the two plates of the door so that the door is rotated about the door axis Wherein when the push plate is completely retracted, the end of the push plate and one of the two plates of the door are released, and the other of the two plates is vertically erected, and the push plate is returned The end of the push plate is brought into contact with the other one of the two plates of the door so that the door is rotated about the door axis and when the push plate is completely returned, The contact with the other of the two plates is released, and one of the two vertical plates is vertically erected The features.

Further, the doors are spaced apart from each other by a plurality of portions, and the portions of the pushing plate which are in contact with the door at both ends thereof are cut inward by a certain distance.

The pressing member includes a cam-shaped portion fixed to the door shaft of the rear door, and a leaf spring fixed to one end or both ends of the plate-shaped portion to be in contact with the cam-shaped portion. And the two plates of the door are alternately raised by bi-directional biasing force transmitted to the rear door.

The pressing member may include a compression spring connected to a lower portion of the door shaft of the rear door and extending to form an obtuse angle with the two plates of the door, a pressing portion connected to the compression spring, And the two plates of the door are alternately raised by the bidirectional biasing force transmitted to the rear door by the pressing portion being in contact with the water plane in accordance with the rotation of the door shaft .

The pressing member includes a cam-shaped portion fixed to the door shaft of the rear door, a horizontal surface contacting the cam-shaped portion, and a compression spring pressing the horizontal surface to contact the cam-shaped portion, And the two plates of the door are alternately raised by bi-directional biasing force transmitted to the rear door.

The pressing member includes a cam-shaped portion fixed to the door shaft of the rear door, a counter-cam-shaped portion contacting the cam-shaped portion, and a compression spring for pressing the counter-cam-shaped portion toward the cam- The cam-shaped portion and the opposite cam-shaped portion come into contact with the rotation of the door shaft, and the two plates of the door are alternately raised by bi-directional biasing force transmitted to the rear door.

The pressing member is composed of two magnets fixed to the door shaft of the rear door and formed at right angles to each other and an opposing magnet facing the two magnets, and the two magnets and the opposing magnet And the two plates of the door are alternately raised by alternate contact.

According to the present invention, in the banknote receipt and payout apparatus of a banking automation apparatus, the temporary storage section, which is normally located in the upper and lower positions, and the separate stack section of the replenishment return section can be commonly used to reduce the cost and the retraction and return of the push plate of the temporary storage section A rear plate structure can be achieved.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The same reference numerals in the drawings denote like elements throughout the drawings.

3 is a view schematically showing the temporary storage section 20 according to the present invention and the separation stack section 21 of the push plates 12 and 22 and the temporary storage section 20 of the replenishment recovery section 10, 4 is a diagram showing a state in which the push plate 22 of the temporary storage unit 20 is retracted and the push plate 12 of the replenishment recovery unit 10 is lifted. Here, the state in which the push plate 22 of the temporary storage unit 20 is retracted refers to a state in which the push plate 12 is rotated so as not to interfere with the rise of the push plate 12 of the replenishment recovery unit 10, It refers to the state of returning to evacuation.

In the present invention, the separating stack unit is not provided in the temporary storage unit 20 and the replenishing / collecting unit 10, and the separating stack unit 21 of the temporary storage unit 20 is used to store the banknotes of the replenishment / To be separated or stacked.

The temporary storage unit 20 serves to temporarily store banknotes when depositing or withdrawing banknotes, so that no bills remain in the temporary storage unit 20 after the depositing or withdrawing operation is completed. Therefore, when the bill is separated and stacked using the replenishment recovery unit 10, the push plate 22 of the temporary storage unit 20 is in a state in which there is no bill.

The push plate 22 of the temporary storage section 20 is retracted (see Fig. 4), and the replenishment recovery section 10 The push plate 12 of the stacker 21 ascends toward the separating stack portion 21 of the temporary storage portion 20 to separate and stack the bank notes.

6 is a perspective view showing a state in which the push plate 22 is rotated to the retracted position and FIG. 7 is a perspective view showing the temporary storage section 20, And the motor 51 shown in Fig.

The temporary storage unit 20 includes a push plate 22, a side plate 30, a gear device, a motor 51, and the like. The push plate 22 is lifted up and down when separating or stacking bills of the temporary storage unit 20 itself. On the other hand, when separating or stacking the banknotes of the replenishment recovery unit 10, the push plate 22 is rotated and retracted so as not to interfere with the movement of the push plate 12 of the replenishing / (The state shown in Fig. 6).

Hereinafter, the structure for the upward and downward movement of the push plate 22 will be described.

The motor 51 is connected to the driving gear 52 to rotate the driving gear. The driving gear 52 is connected to the main shaft 53 and the main shaft 53 is connected to the first, second and third gears 54, 55, . A timing belt 58 is connected between the third gear 56 and the auxiliary gear 57. The lifting portion 60 connected to the push plate 22 is fixed to the timing belt 58. The vertical bore 61 is integrally connected to the elevating part 60 and the vertical column 62 connected to the upper and lower ends of the side plate 30 and extending therebetween is inserted into the vertical bore 61 So that the vertical movement of the elevating part (60) is guided by the vertical column (62).

When the drive gear 52 rotates by the rotation of the motor 51, the rotational force of the drive gear 52 is sequentially transmitted to the main shaft 53, the first, second and third gears 54, 55 and 56, And is conveyed to the belt 58. As the timing belt 58 rotates between the third gear 56 and the auxiliary gear 57, the push plate 22 connected to the elevation portion 60 ascends and descends.

The periodic pin 53a is integrally connected to the periodic pin 53 and the periodic pin 53a is inserted into a round groove 31 formed in the side plate 30. [ When the motor 51 is driven and the main gear 53 rotates, the main gear pin 53a rotates along the round groove 31 as well. When the cyclic pin 53a is positioned at the lowermost side of the round groove 31, the push plate 22 is also at the lowest position, and the cyclic pin 53a is positioned on the uppermost side of the round groove 31 The push plate 22 is also at the highest position. In the figure, the push plate 22 is raised when the main gear 53 rotates counterclockwise, and the push plate 22 is lowered when it rotates clockwise.

Hereinafter, a configuration for rotational movement of the push plate 22 when retracted will be described.

At the lowermost position of the push plate 22 (the lowermost position of the cyclic pin 53a), even if the cyclic clamp 53 further rotates clockwise, the cyclic clamp 53, which is integrally connected to the cyclic clamp 53, 53a are blocked in the round groove 31 and can no longer be moved. Therefore, the main gear 53 does not rotate around the main gear shaft but rotates about the driving gear shaft 52a along the outer surface of the teeth of the driving gear 52. [ At this time, the rotational force of the main gear 53 is transmitted to the main gear pin 53a, and the main gear pin 53a lifts the side gear 30 and rotates about the driving gear shaft 52a. At this time, the side plate 30 also lifts the lift unit 60 and the push plate 22 so that the push plate 22 also rotates about the drive gear shaft 52a. Since the main gear 53 is rotated around the driving gear shaft 52a without being rotated around the main gear shaft, the remaining gears (first, second and third gears 54, 55, and 56) And is rotated around the driving gear shaft 52a as one body with the main gear 53 without being rotated around the axis.

After the push plate 22 is completely retracted, the push plate 12 of the replenishing / collecting unit 10 can be moved up and down. When the push plate 22 is returned, the main shaft 53 rotates (counterclockwise) in the opposite direction about the driving gear shaft 52a. When the driving force of the motor 51 is continuously transmitted to the main shaft 53 in the state in which the main gear pin 53a is in the lowest position (the state shown in Fig. 5), the main gear pin 53a The lifter 53 is allowed to move along the round groove 31 of the lifter 30, from which the lifter 53 is rotated about the lifter axis so that the push plate 22 starts lifting again.

8 is a view schematically showing a configuration of a temporary storage unit 20 including a conventional rear plate 33. FIG. 9 is a schematic view of a temporary storage unit 20 including the rear plates 34 and 35 of the present invention. FIG. 10A is a view continuously showing the contact state of the rear door and the push plate 22 when the rear door 35 of the present invention is retracted, FIG. 10B is a view showing a state in which the rear door When the door 35 is returned, the contact state between the rear door and the push plate 22 is continuously shown.

Referring to FIG. 8, the back plate 33 is usually disposed at the rear of the push plate 22, and when the bill is stacked on the push plate, the path of the bill is guided . When separating and stacking the banknotes through the push plate 12 of the replenishment recovery unit 10 in order to share the separate stack unit of the temporary storage unit 20 and the replenishment recovery unit 10, So that the push plate 22 of the movable member 20 is rotated and retracted. In this case, the rear plate should be configured such that the rotation of the push plate 22 of the temporary storage unit 20 is not disturbed by the rear plate 33.

To this end, the rear plate of the present invention is composed of a fixed rear plate 34 and two parts of a rotatable rear door 35 (35a, 35b) (see FIG. 9).

The rear door 35 includes a door shaft 35b rotatably connected to the case 25 or another frame of the temporary storage unit and doors 35a and 35a 'and 35a' composed of two plates fixed to the door shaft, And a pressing member (for example, a spring) for urging the door to stand vertically.

When the push plate 22 rotates while the push plate 22 is in contact with any one of the two plates 35a 'of the door while the push plate 22 rotates, the force of rotation of the push plate 22 is greater than the spring force , And the push plate rotates in contact with the door 35a (see Fig. 9 (b)). When the push plate 22 is completely rotated to the retreat position, the door 35a is released from contact with the push plate 22 and the other one of the two plates 35a "of the door is vertically erected by the spring force (See Fig. 9 (c)).

When the push plate 22 is returned from the retracted position again, the push plate is rotated in the opposite direction while contacting the other one of the two plates 35a "of the door, and when the push plate 22 is completely returned to the initial position The contact with the door 35a is released, and one of the two plates 35a 'of the door is vertically erected.

It is preferable that the door 35a is composed of a plurality of (for example, two) doors and is spaced apart from the door shaft 35b (see FIG. 11). The portion of the push plate 22 which is in contact with the door 35a is cut inward by a predetermined distance (see FIG. 5), and when the push plate 22 is retracted and returned, the contact between the push plate and the door 35a It is desirable to minimize the time. This allows the door 35a to quickly return to the vertical position.

11 is a view showing an embodiment of a pressing member for applying a force to vertically raise the door.

The pressing member includes a cam-shaped portion 35c fixed to the door shaft 35b of the rear door 35 and a leaf spring 36 to which both sides are fixed. The cam-like portion 35c is rotated together with the rotation of the door shaft 35b and the cam-shaped portion 35c is rotated by the spring force except when the cam- Is biased to either side. The two plates of the door 35a are alternately raised by the biasing force acting on both sides.

The embodiment shown in Fig. 12 has the same configuration as that of Fig. 11 except that only one side of the leaf spring 37 is fixed.

13 is a view showing another embodiment of a pressing member for applying a force to vertically raise the door.

The pressing member includes a compression spring 38 connected to the lower portion of the door shaft 35b of the rear door 35 and extending to form an obtuse angle with the two plates of the door 35a, And a horizontal surface 40 formed on the case 25 or another frame of the temporary storage unit 20 and pressed by the pressing unit 39.

The pressing portion 39 is also rotated in accordance with the rotation of the door shaft 35b and the pressing force of the pressing portion 39 is lowered by the spring force of the compression spring 38 except when the pressing portion vertically contacts the horizontal surface 40. [ (39) is biased either to the left or to the right. The two plates of the door 35a are alternately raised by the biasing force acting on both sides.

14 is a view showing another embodiment of a pressing member for applying a force to vertically raise the door.

The pressing member includes a cam-shaped portion 35c fixed to the door shaft 35b of the rear door 35, a horizontal surface 41 contacting the cam-shaped portion 35c, (Not shown).

The camshaped portion 35c also rotates along with the rotation of the door shaft 35b and is rotated by the spring force of the compression spring 42 except when the camshaped portion makes vertical contact with the horizontal surface 41 The cam-shaped portion 35c is subjected to a force biased to either the left or the right. The two plates of the door 35a are alternately raised by the biasing force acting on both sides.

15 is a view showing another embodiment of a pressing member for applying a force to vertically raise the door.

The pressing member includes a cam-shaped portion 35c fixed to the door shaft 35b of the rear door 35, an opposed cam-shaped portion 43 contacting the cam-shaped portion 35c, And a compression spring (not shown) for urging it toward the cam-shaped portion 35c. The shape of the contact surface between the cam-shaped portion 35c and the opposite cam-shaped portion 43 is formed so as to deflect the door shaft 35b toward either the left or right by the spring force of the compression spring.

The cam-shaped portion 35c is also rotated together with the rotation of the door shaft 35b so that the cam-shaped portion 35c contacts the opposite cam-shaped portion 43, The cam-shaped portion 35c is subjected to a force biased to either the left or the right. The two plates of the door 35a are alternately raised by the biasing force acting on both sides.

16 is a view showing another embodiment of a pressing member for applying a force to vertically raise the door.

The pressing member is composed of two magnets 44 (44a and 44b) fixed to the door shaft 35b of the rear door 35 at right angles to each other and an opposed magnet 45 facing the two magnets.

In a state in which one of the two plates of the door 35a is erected, one of the two magnets 44a and the opposing magnet 45 come into contact with each other, and the door 35a is maintained in a standing state by the magnetic force. The magnet 44 is rotated together with the rotation of the door shaft 35b and when the door shaft 35b rotates by 90 degrees, the other one of the two magnets 44b and the opposing magnet 45 come into contact with each other, The door 35a is maintained in a standing state.

As described above, the rear door of the present invention is constructed by two plates orthogonal to each other and rotatable. When the push plate of the temporary storage unit completes retraction and return, one of the two plates is vertically erected Guide bills up and down. Therefore, the function of the rear plate can be performed irrespective of the retreat and return of the push plate of the temporary storage section.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a schematic configuration of a banknote receipt and payout apparatus of a general banking automation apparatus; Fig.

2 is a view showing a schematic configuration of a temporary storage unit and a replenishment recovery unit according to the prior art;

3 is a schematic view showing a push plate and a separating stack portion of a temporary storage portion and a separating stack portion according to the present invention.

4 is a view showing a state in which the push plate of the temporary storage unit according to the present invention is retracted and the push plate of the separating stack unit is lifted.

5 is a perspective view showing a schematic configuration of a temporary storage unit of the present invention.

6 is a perspective view showing a state in which the push plate of the present invention is rotated to a retreat position;

7 is a perspective view showing the configuration of a gear device and a motor of the temporary storage portion of the present invention.

8 is a view schematically showing a configuration of a temporary storage section including a conventional rear plate.

9 is a view schematically showing a configuration of a temporary storage section including a rear plate of the present invention.

10A and 10B are views continuously showing the contact state of the rear door and the push plate when the rear door of the present invention is retracted and returned.

11 is a view showing an embodiment of a pressing member for applying a force to vertically raise the door of the present invention.

12 shows an embodiment similar to that of Fig.

13 is a view showing another embodiment of a pressing member for applying a force to vertically raise the door.

14 is a view showing another embodiment of a pressing member for applying a force to vertically raise the door.

15 is a view showing another embodiment of a pressing member for applying a force to raise the door vertically;

Fig. 16 is a view showing another embodiment of a pressing member for applying a force to vertically raise the door; Fig.

Description of the Related Art

10: Replenishment recovery unit 20: Temporary storage unit

21: Separation stack section 22: Push plate

25: Case 30: Side plate

31: Round groove 34: Fixed rear plate

35: rear door 36: leaf spring

38: compression spring 39:

40: horizontal plane 41: horizontal plane

42: compression spring 43: opposing cam shape

44, 45: Magnet 51: Motor

52: driving gear 52a: driving gear shaft

53: main word 53a: main word pin

57: Auxiliary gear 58: Timing belt

60: elevating part 61: vertical bore

Claims (7)

A banknote receipt and payout apparatus for a banking automation machine including a replenishment recovery unit (10) for separating banknotes or stacking banknotes through a separation stack unit (21) and a temporary storage unit (20) The temporary storage unit 20 includes a replenishment recovery unit 10 so as to share the separation stack unit 21 and the separation stack unit 21 in which the replenishment recovery unit 10 and the temporary storage unit 20 are shared ), The paper money is separated and stacked, The push plate 22 of the temporary storage unit 20 rotates and is retracted and the push plate 12 of the replenishing and collecting unit 10 is moved upward The push plate 12 of the replenishment recovery unit 10 is rotated and retracted and the push plate 22 of the temporary storage unit 20 is retracted ), The temporary storage unit 20 stores, A fixed rear plate 34 fixedly arranged on a rear surface of the path through which the push plate 22 is lifted and lowered to guide the lifting and lowering of the banknote; And a rear door (35) The rear door (35) A door 35a fixed to the door shaft 35b and composed of two plates orthogonal to each other, and a door 35a connected to the door 35a, And a pressing member for applying a force to vertically raise the pressing member, When the push plate 22 rotates for retraction, the end portion of the push plate contacts one of the two plates 35a 'of the door 35a so that the door 35a contacts the door shaft 35b ), When the push plate 22 is completely retracted, the contact between the end of the push plate 22 and one of the two plates 35a 'of the door 35a is released, and the other of the two plates 35a " are vertically erected, When the push plate 22 rotates for returning, the end portion of the push plate 22 is brought into contact with the other one of the two plates 35a '' of the door 35a, And is rotated about the door axis, When the push plate 22 is completely returned, the end of the push plate 22 is released from contact with the other one of the two plates 35a 'of the door 35a, and one of the two plates (35a ') is vertically erected. The door according to claim 1, wherein the door (35a) is spaced apart from the door (35a), and a portion of the push plate (22) contacting the door (35a) Automatic banknote depositing and dispensing equipment. The door according to claim 1 or 2, wherein the pressing member comprises a cam-shaped portion fixed to the door shaft of the rear door, and a leaf spring fixed to one end or both ends of the plate- Wherein the two plates of the door are alternately raised by bi-directional biasing force that is transmitted to the rear door by the cam-shaped portion contacting the leaf spring according to the rotation of the door shaft. 3. The door according to claim 1 or 2, wherein the pressing member comprises a compression spring connected to a lower portion of the door shaft of the rear door and extending to form an obtuse angle with the two plates of the door, And a horizontal surface formed in a case or another frame of the temporary storage unit and pressed by the pressing unit, Wherein the two plates of the door are alternately raised by a bi-directional biasing force that is transmitted to the rear door by the pressing portion contacting the horizontal surface in accordance with the rotation of the door shaft. The door according to claim 1 or 2, wherein the pressing member includes a cam-shaped portion fixed to the door shaft of the rear door, a horizontal surface contacting the cam-shaped portion, And a compression spring Wherein the two plates of the door are alternately raised by a bi-directional biasing force that is transmitted to the rear door by the cam-shaped portion contacting the horizontal surface in accordance with the rotation of the door shaft. The door according to claim 1 or 2, wherein the pressing member includes a cam-shaped portion fixed to the door shaft of the rear door, a counter-cam-shaped portion contacting the cam-shaped portion, And a compression spring for urging the compression spring toward the negative side, Characterized in that the cam-shaped portion and the counter-cam-shaped portion are brought into contact with the rotation of the door shaft and the two plates of the door are alternately pressed by bi-directional biasing force transmitted to the rear door. Device. The door according to claim 1 or 2, wherein the pressing member comprises two magnets fixed to the door shaft of the rear door and perpendicular to each other, and an opposing magnet facing the two magnets, Wherein the two magnets and the counter magnet are alternately brought into contact with each other in accordance with the rotation of the door shaft, so that the two plates of the door are alternately raised.

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