JP5685713B2 - Front door unlocking mechanism, housing structure, and money handling device - Google Patents

Description

  Since the present invention has a lock portion for locking / unlocking the front door of a vending machine such as a vending machine, a cash dispenser, an information terminal device, etc. The present invention relates to an unlocking mechanism for a front door, a housing structure, and a money handling apparatus that have solved the problems in the case of performing an unlocking operation of the lock unit from the side of the unit.

Various devices such as a vending machine such as a vending machine, a cash dispenser, and an information terminal device have a configuration in which mechanical parts, electrical parts, electronic parts, and the like are housed in a metal casing.
In these devices, there are openings in the front, back, and other parts of the housing to perform maintenance on each component inside the housing and to insert and remove tickets, goods, money, etc. The opening is opened and closed by a door. In general, a front door provided with an operation unit, a display unit, and the like is supported on the front surface of the housing so as to be freely opened and closed.
For models that perform maintenance, etc., by opening the front opening of the housing, adopt a configuration in which the front door is pivotally supported by the front opening so that it can be opened and closed, and the rear opening of the housing is opened. In a model in which maintenance or the like is performed by this, the rear door is pivotally supported by the rear opening so as to be freely opened and closed.

By the way, even if the rear opening part of the case is configured to be openable and closable as in the latter case, when performing maintenance on each component arranged on the back side of the front panel or in the front in the casing, the rear opening In many cases, it is more efficient to work from the front side than to work from the front part. For this reason, even in a type in which a rear door is provided in the rear opening, there is a type in which a front door is provided in the front opening to facilitate maintenance on components located in the front of the housing.
As described above, the rear door is pivotally supported on the rear opening of the chassis so that the main maintenance work can be performed from the rear side, while the maintenance work for the components arranged at the front part in the chassis is performed. In order to prevent the unauthorized unlocking action from the outside, the lock part for locking the front door is configured so that it cannot be unlocked from the outside. . In this case, generally, a lock part is provided inside the front door, and a hand is inserted through the rear opening, and the lock part is operated to perform an unlocking operation of the front door.

However, due to the demand for smaller and thinner automatic ticket vending machines, multiple components are placed close together in the housing, and complicated wiring is provided between the components, so there is excess space. It is extremely limited, and it is difficult to provide a space for inserting the arm from the rear opening to the lock provided inside the front door. Conventionally, a narrow and dark space for inserting such an arm was forcibly created, so it was not easy to confirm the position of the lock part, and even if the position of the lock part was found, there were many obstacles such as wiring The unlocking operation with the arm in the space was extremely complicated. In addition, there are problems such as injuries caused by burrs formed on sheet metal parts arranged along the insertion space, burns caused by heat-generating parts, and damage to work clothes. Further, the layout becomes difficult to secure a space for inserting an arm, and the casing is enlarged.
In order to eliminate such problems, problems to be considered at the time of design increase, and the development period for improvement is prolonged, resulting in a problem of cost increase.

In order to solve the above problems, the applicant of the present invention in Patent Document 1 uses the front door by operating the operation part provided in the position close to the rear opening part in the front-rear direction without inserting the arm up to the inner part of the housing. We proposed an unlocking mechanism for the front door that can release the lock by pushing up the lock piece supported to move up and down.
However, in the case of adopting a configuration in which the lock part of the front door is unlocked by moving the operation unit rearward as in Patent Document 1, the rear end of the lock piece is closed when the front door in the open state is closed. There is a problem in that it cannot be closed if the part and the operation part collide with each other. In this case, the front door must be closed while pushing up the lock piece by hand, and workability may be deteriorated.

On the other hand, the present applicant can unlock the front door in Patent Document 2 by operating an operation unit provided at a position close to the rear opening without inserting the arm to the back of the housing. Proposed a front door unlocking operation mechanism that can also solve the problem that the locking piece that locks the front door to the main body of the housing when it closes can not be closed smoothly. .
However, in Patent Document 2, since the hook-shaped lock piece provided on the lock member supported on the back surface of the front door so as to be movable up and down has a structure that always protrudes rearwardly, When the front door was opened, the maintenance worker could hit the lock piece with his head, face, or other upper body and get injured. In addition, during maintenance work, workers are paying attention to the inside of the enclosure, so even if a general user approaches the open front door, they will not be aware and cannot prevent the user from being injured by the locking piece. There is also a fear.

JP 2008-081970 A JP 2008-165630 A

  The present invention has been made in view of the above, and not only does the operation of unlocking the front door from the rear opening, but also returns the locked portion of the front door to the locked state when closing the opened front door. In various types of equipment equipped with an open / close operation mechanism that can be used, the front door opening that eliminates the problem that the part protruding from the lock member provided on the front door side may collide with an operator during maintenance and cause injury. The object is to provide a lock release mechanism.

  In order to achieve the above object, an unlocking mechanism for a front door according to the invention of claim 1 includes a housing body having openings at least on the front surface and the back surface, and the front opening and the back opening. Front and rear doors to be opened and closed, a locked part provided on the front door, and supported by the casing body so as to be movable up and down, and descending when the front door is closed to lock the locked part And a movable lock member having a lock piece that is supported by the housing body so as to be movable back and forth between the last retracted position and the most advanced position. The movable lock member is moved up and down during advancement and retraction to lock the lock piece. An operation member that engages with or releases the engagement, and a front part of the operation member pushes up the movable lock member in contact with an affected part of the movable lock member in a process of moving forward An action part, and provided at the tip of the action part; A pressing portion that presses and releases the rear surface of the front door in a stopped state forward, and in the process in which the operation member moves from the most retracted position to the most advanced position, the action portion causes the movable lock member to move. After gradually lifting up and releasing the locking of the locked portion by the locking piece, the operating member is further moved to the most advanced position to press the back of the front door in which the pressing portion is closed And opening it.

According to a second aspect of the present invention, in the process of closing the front door in the open state, the operation member starts to move backward by pressing the pressing portion of the operation member at the most advanced position backward. Then, during the backward movement, the operating portion pushes up the operating member to the unlocking position, and then when the front door is closed, the operating member is lowered to engage the lock piece with the locked portion. It is characterized by making it.
According to a third aspect of the present invention, the action portion includes a front inclined surface that is inclined upward and backward, and a top portion that is connected to an upper portion of the front inclined surface, and the operation member moves to the most advanced position. In the process, after pushing up the actuated part until the front inclined surface releases the lock of the locked part by the lock piece, the pressing is performed while maintaining the unlocked state by the top part. It is comprised so that the said front door may be open | released by a part.
The invention according to claim 4 is characterized in that a rolling member that rolls in contact with the acting part is arranged in the acted part.
According to a fifth aspect of the present invention, a rear inclined surface that is inclined downward and rearward from the top portion and a recess that extends rearward from the rear inclined surface are formed at the rear of the top portion. The operation member is configured to be stopped by fitting the parts.

According to a sixth aspect of the present invention, there is provided a housing body having openings at least on the front surface and the back surface, a front door and a rear door that respectively open and close the front surface opening and the back surface opening, and the front door. A locked part, a movable lock member provided with a lock piece that is supported by the casing body so as to be movable up and down and is raised when the front door is closed, and that locks the locked part; and An operation member that is supported between the last retracted position and the most advanced position so as to freely move forward and backward, and moves the movable lock member up and down to lock the lock piece to the locked part when releasing or moving, and an unlocking member, An operating part for lowering the movable lock member in contact with the actuated part of the movable lock member in the process of moving forward, and a closed state provided at the distal end of the actuating part Press the back of the front door at the front to open it The operation portion gradually lowers the movable lock member while the operation member moves from the last retracted position to the most advanced position, and the locked portion is locked by the lock piece. After the release, the operation member is further moved to the most advanced position to press and release the back surface of the front door where the pressing portion is in the closed state.
A casing structure according to a seventh aspect of the invention is characterized by comprising the unlocking mechanism for unlocking the front door according to any one of the first to sixth aspects.
A money handling apparatus according to an eighth aspect of the invention is characterized by including the housing structure according to the seventh aspect.

As described above, in the present invention, in various devices including an unlocking operation mechanism of a type that requires the operation of unlocking the front door from the rear opening, in the front-rear direction along the inner wall of the housing body. An operation lever (operation member) supported so as to be able to advance and retreat is provided, and a front portion of the operation lever is provided with an action portion for contacting and unlocking the lock portion, and a rear portion of the operation lever is provided with the housing. Since the operation part that extends to the back opening of the body is provided, the front door can be locked by operating the operation part provided at a position close to the back opening without inserting the arm all the way into the housing. It can be canceled. Moreover, the locked part provided in the front door side is a mere hole, and there is no possibility that an operator etc. may be injured by protruding backward. In addition, since there is no dangerous member that protrudes also on the housing body side, there are no dangerous elements.
The procedure for unlocking and releasing the front door is a process in which the operating member moves from the most retracted position to the most advanced position, and the action part gradually pushes up the movable lock member to unlock the locked part by the lock piece. Then, the operation member is further moved to the most advanced position to complete the process by pressing and opening the back surface of the front door in which the pressing portion is in the closed state.
The procedure for closing and locking the front door is the process of closing the front door in the open state, and when the front door presses the pressing portion of the operating member in the most advanced position backward, the operating member starts to retreat, In the process of retreating, the action part pushes up the operating member to the unlocking position, and when the front door is closed, the operating member is lowered and the locking piece is locked with the locked part.
Any operation can be realized by a simple procedure close to a one-touch operation.

It is a front view of an automatic ticket vending machine as an example of a money handling device concerning one embodiment of the present invention. It is a front side perspective view of the automatic ticket vending machine of the state which opened the front and back doors. It is a back side perspective view of the automatic ticket vending machine of the state which opened the front and back doors. It is a housing side part longitudinal section for explaining the relation between the back-and-forth movement of an operation member and the operation of a lock part. It is a housing side part longitudinal section for explaining the relation between the back-and-forth movement of an operation member and the operation of a lock part. It is a housing side part longitudinal section for explaining the relation between the back-and-forth movement of an operation member and the operation of a lock part. (A) thru | or (d) is a principal part enlarged view for demonstrating the relationship between the front-back operation | movement of an operation member, and the operation | movement of a lock part. It is a principal part enlarged view which shows the structure of the unlocking release mechanism which concerns on other embodiment of this invention.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
FIG. 1 is a front view of an automatic ticket vending machine as an example of a money handling apparatus according to an embodiment of the present invention, and FIG. 2 is a front perspective view of the automatic ticket vending machine with front and rear doors open. 3 is a rear perspective view of the automatic ticket vending machine in a state where the front and rear doors are opened, and FIGS. 4 to 6 are longitudinal sectional views of the side of the casing for explaining the relationship between the front and rear movements of the operation member and the lock part FIGS. 7A to 7D are enlarged views of a main part for explaining the relationship between the front-rear movement of the operation member and the operation of the lock part.
The automatic ticket vending machine (money handling device) 1 is installed at the front of the housing while maintenance work of main internal devices can be performed from the rear opening by opening the rear door. Maintenance of internal equipment must be performed with the front door open. On the other hand, if there is a risk of unauthorized unlocking if a keyhole or the like for unlocking the locking means of the front door is provided on the outer surface of the casing, the unlocking means of the locking means for the front door is provided inside the casing, Is configured to be unlocked only by an operation from the rear opening.

The case 2 constituting the automatic ticket vending machine (money handling device) 1 is composed of a metal case main body 3 having openings 4 and 5 on the front and back sides, and a front opening 4 and a back opening 5 respectively. A front door 10 and a rear door 20 that are pivotally supported by hinges 4a and 5a, a lock portion 30 that locks the front door 10 with respect to the housing body 3, and an unlocking operation of the lock portion 30, respectively. The operation member 50 is provided. The lock unit 30 and the operation member 50 constitute an unlocking operation mechanism A.
On the front surface of the front door 10, a display unit 10a, a coin slot 10b, a bill slot 10c, a ticket issuing unit 10d, and the like are provided. Various internal devices D are arranged inside the housing body 3. As shown in FIG. 2, the front side internal device exposed in the front opening 4 can be maintained only from the front opening 4 side. For this reason, although maintenance is performed with the front door 10 opened as shown in the figure, the operation of unlocking the lock portion 30 can be performed only by operating the operation member 50 from the rear opening 5. ing.

The operation member 50 that constitutes the unlocking operation mechanism A is an operation lever 51 that is supported by a guide member 3b provided on the inner wall 3a of the housing body 3 so as to be linearly movable back and forth in the front-rear direction. The rear portion 51a of the operation lever 51 is in a position exposed from the rear opening 5 when the rear door 20 is opened as shown in FIG. 3, and the rear portion 51a is in the last retracted position where the manager in charge of maintenance has retracted backward. It becomes a pressing operation part when pushing the operating lever forward. The front part 51b of the operation lever is in a position exposed from the front opening 4 when the front door 10 is opened as shown in FIG. 2, and is locked when the operation lever in the last retracted position is pushed forward and protrudes. It has a function of acting on the part 30 (movable lock member 35) and operating it to open the front door.
The lock portion 30 is fixedly provided on the front door 10 and is supported by the housing body 3 so as to be movable up and down. The lock portion 30 is lowered when the front door is closed to lock the lock portion 31. And a movable lock member 35 provided with a hook-shaped lock piece 36. The locked portion 31 is a plurality of locked holes 32a provided in a predetermined vertical arrangement on a plate member 32 that is fixed on the back side of the front door 10 and extends in the vertical direction, one to one with each locked hole 32a. A lock piece 36 provided in a corresponding positional relationship is configured to be detachably fitted.

The length of the locked hole 32a in the vertical direction is such that the lock piece 36 can be moved up and down with the lock piece 36 fitted in the locked hole, and the lock piece 36 can move laterally in the locked hole at the raised position. Is set. That is, as shown in FIG. 4, when the lock piece 36 is fitted in the locked hole 32 a with the front door 10 closed, the movable lock member 35 is moved up and down to bring the lock piece 36 into the locked hole. When the front door is opened at a position where the lock piece is lifted as shown in FIG. 5, it can be moved up and down so that the opening operation of the front door is not hindered.
The movable lock member 35 is lowered as shown in FIG. 4 to lock the front door 10 in the closed position when the lock piece 36 is engaged with the lower edge of the lock hole 32a, and is raised to lock the lock piece. When the engagement with the hole 32a is released, the front door is moved to a state where it can be opened. At an appropriate position of the movable lock member 35, an actuated portion 33 is provided for the front portion 51b of the operation lever to come into contact and push up the movable lock member. The acted part 33 according to this example is a rolling member such as a roller. The actuated portion 33 is not limited to a rolling member, and may be any member as long as it is formed of a shape and material that can slide smoothly with the front portion 51b of the operation lever.
The movable lock member 35 includes a long hole 35a that is long in the vertical direction, and is supported so as to be vertically movable by loosely fitting a pin 3c provided on the inner wall 3a into the long hole 35a.

The operation lever 51 is supported by the housing body 3 so as to freely advance and retract between the most retracted position shown in FIG. 4 and the most advanced position shown in FIG. 6, and the first lever 51 protrudes forward as shown in FIG. When in the protruding position, the movable lock member 35 is raised so that the locking of the lock piece 36 and the locked hole 32a can be released, and further protrudes to the most advanced position (second protruding position) as shown in FIG. When it does, it has a role which presses and opens a front door. Further, when the front door is opened as shown in FIG. 6 and the rear surface of the front door presses the front end of the operation lever 51 rearward and the operation lever retracts from the most advanced position, the movable lock member 35 is closed. Is temporarily lifted to release the locking between the lock piece 36 and the locked hole 32a, and the movable locking member 35 is lowered in accordance with the timing of closing the front door to lock the locking piece and the locked hole. Lock the front door.
The operating lever 51 has a long hole 51c that is long in the lateral direction, and is guided so as to be movable in the front-rear direction by loosely fitting a pin 3d projecting from the inner wall 3a into the long hole 51c.
The front part 51b of the operation lever includes an action part (inclined surface) 52 that pushes up the movable lock member in contact with the actuated part 33 of the movable lock member in the process of moving the operation lever in the last retracted position forward, and the action part And a pressing portion 55 that presses the back of the front door in a closed state and opens it to the front.

  The action portion 52 includes a front inclined surface 52a inclined upward and rearward, a short top portion 52b extending in a lateral direction connected to an upper portion of the front inclined surface 52a, and a rear inclined surface inclined downward and rearward from the top portion 52b. 52c and a recess 52d connected to the rear of the rear inclined surface 52c. In the process in which the operation member 50 moves to the most advanced position, the action part 52 continues to push up the action part 33 until the front inclined surface 52a releases the locking of the lock hole 32a by the lock piece 36. Further, the front door 10 is pressed and released by the pressing portion 55 while maintaining the unlocked state by the action of the top portion 52b. After the front door is opened, the actuated portion 33 descends along the rear inclined surface 52c, is locked in the recess 52d, and the operation lever 51 stops.

Next, based on the enlarged view of FIG. 7, an operation for unlocking (unlocking) and opening the front door by the operation member and a relocking operation accompanying closing of the front door in the open state will be described.
FIG. 7A is a diagram showing a state in which the movable lock member 35 holds the locked portion 31 in a locked (locked) state with the front door 10 closed. At this time, the operation lever 51 is retracted last time. In position. Since the movable lock member 35 does not receive the upward pushing force by the operation lever, it is lowered by its own weight. At this time, the hook portion of each lock piece 36 is fitted and locked in the locked hole 32a. It is in. In this state, the front door cannot be opened from the outside of the front door 10.
Next, when the front door 10 is opened, the rear door 20 is opened, and the rear portion 51a of the operation lever 51 disposed along the inner wall 3a is pushed forward. Then, as shown in FIG. 7B, first, the front inclined surface 52a of the action portion 52 located at the front end of the operation lever pushes up the action portion 33 to raise the movable lock member 35. By moving the tip portion upward from the lower edge of the locked hole 32a, the tip can be detached from the locked hole. At this time, the pressing portion 55 is close to the back surface of the front door 10 but does not press the front door.

Next, when the operation lever 51 moves forward to the position of FIG. 7C, the actuated portion 33 reaches the top portion 52b from the front inclined surface 52a, so that the pressing portion 55 starts to press the back surface of the front door 10, When the actuated portion 33 passes the top portion 52b, the front end of the lock piece 36 is released from the locked hole 32a and the front door is opened forward.
Next, in the process until the operation lever 51 reaches the most advanced position of (d), the actuated portion 33 descends along the rear inclined surface 52c and is locked at the inner bottom surface of the recess 52d. In a state where the actuated portion 33 is locked to the inner bottom surface of the recess 52d, the operation lever does not move backward as long as the front door 10 hits the pressing portion 55 of the operation lever with a light force. It is possible to maintain the state of canceling. That is, when the recess 52d does not exist, there is no means for holding the actuated portion 33 at the position (d), so the operating lever 51 at the position (d) is moved backward by a light pressing force to the rear. Since the movable lock member 35 is lowered by its own weight, the operation for relocking using the front door cannot be performed. On the other hand, by locking the actuated portion 33 in the state (d) by the recess 52d, it is possible to prevent the operation lever 51 from moving backward and to prevent the movable lock member from falling due to its own weight.

In this way, the unlocking and releasing procedure of the front door is performed in the process in which the operating member moves from the most retracted position to the most advanced position. After releasing the lock, the operation member is further moved to the most advanced position, whereby the pressing portion 55 is pressed and opened on the back surface of the front door in the closed state.
Next, when the front door 10 in the opened state is closed and locked as shown in FIG. 7D, an operation of closing the front door 10 may be performed. That is, by closing the front door in the state of (d), the front door pushes the pressing portion 55 of the operation lever 51, and shifts to the locked state of (a) through the steps (c) and (b). be able to.
In this way, the procedure for closing and locking the front door is the process of closing the front door in the open state, so that the front door pushes the pressing portion of the operating member at the most advanced position backward, and the operating member moves backward. Start and complete the operation by pushing the operating member to the unlocking position in the process of retreating, then lowering the operating member when the front door is closed and locking the locking piece with the locked part To do.

In the above embodiment, when the movable lock member is lowered by its own weight, the lock piece locks the locked portion 31 and locks the front door. However, this is only an example. For example, as shown in the modified embodiment of FIG. 8, the movable lock member 35 is always urged in the upward direction by a spring (elastic member) (not shown) and is locked when the lock piece 36 provided on the movable lock member is lifted. You may comprise so that a part may be latched and the front door 10 may be locked. In this case, the vertical direction of the lock piece 36 and the locked part 31 are all opposite to the structure of the above embodiment. Needless to say, the action portion of the operation lever is also inverted in shape.
Moreover, the action part 52 which concerns on embodiment of FIG. 8 is provided with the front part inclined surface 52a which inclines below back, and the top part 52b connected with the lower part of the front part inclined surface, and the operation member 51 is the most advanced position. In the process of moving to the position, after the actuated portion 33 is lowered until the front inclined surface 52a releases the locked portion 31 by the lock piece 36, the unlocked state is maintained by the top portion 52b. The front door is opened by the pressing portion 55.

As described above, in each embodiment of the present invention, the locked portion provided on the front door side is not a member protruding rearward from the back surface of the front door, but a mere hole. Further, there is no member protruding forward from the housing body side. For this reason, there is no possibility that a portion protruding from the lock member provided on the front door side may collide with an operator or the like during the maintenance and cause injury.
The present invention can be applied to a general housing structure in which openings are provided at least on the front surface and the back surface, and the front door is opened by an operation from the back opening side.
Examples of devices to which the housing structure of the present invention can be applied include information terminal devices and the like in addition to vending machines such as automatic ticket vending machines and money handling devices such as money dispensing devices.

DESCRIPTION OF SYMBOLS 1 ... Automatic ticket vending machine (money handling apparatus), 2 ... Housing | casing, 20 ... Rear door, 3 ... Housing | casing main body, 3a ... Inner side wall, 3b ... Guide member, 3c, 3d ... Pin, 4 ... Front opening part, 4a ... Hinges, 5 ... Back opening, 10 ... Front door, 10a ... Display part, 10b ... Coin insertion slot, 10c ... Bill insertion slot, 10d ... Ticketing part, 30 ... Lock part, 31 ... Locked part, 32 ... Plate Member 32a ... Locked hole 33 ... Acting part 35 ... Movable lock member 35a ... Long hole 36 ... Lock piece 36 ... Each lock piece 50 ... Operation member 51 ... Operation member (operation lever) 51a ... rear part, 51b ... front part, 51c ... long hole, 52 ... action part, 52a ... front part inclined surface, 52b ... top part, 52c ... rear part inclined surface, 52d ... concave part, 55 ... pressing part

Claims (8)

A housing main body having openings at least on the front surface and the back surface; a front door and a rear door that open and close the front opening portion and the rear opening portion; a locked portion provided on the front door; A movable lock member that is supported by the body body so as to be movable up and down and moves downward when the front door is closed to lock the locked portion; and a last retracted position and a most advanced position by the housing body An operation member that is supported so as to freely move forward and backward, and that moves the movable lock member up and down to lock the lock piece to the locked portion or release the lock.
The front portion of the operation member is in contact with the operated portion of the movable lock member in the process of moving forward, and pushes up the movable lock member, and the front portion provided at the tip of the action portion is in a closed state. It has a pressing part that presses the back of the door forward and opens it,
In the process in which the operation member moves from the last retracted position to the most advanced position, the action part gradually pushes up the movable lock member to release the locking of the locked part by the lock piece. An unlocking mechanism for unlocking the front door, wherein the operation member is moved to the most advanced position to press and open the back surface of the front door in which the pressing portion is in the closed state.   In the process of closing the front door in the open state, the operation member starts to move backward by pressing the pressing portion of the operation member in the most advanced position backward, and in the process of moving backward, The operation portion pushes up the operation member to a lock release position, and then, when the front door is closed, lowers the operation member to lock the lock piece with the locked portion. The unlocking mechanism for the front door according to Item 1. The action portion includes a front inclined surface inclined upward and rearward, and a top portion connected to an upper portion of the front inclined surface,
In the process of moving the operating member to the most advanced position, the front inclined surface pushes up the actuated part until the locked part is released from being locked by the lock piece. The unlocking mechanism of the front door according to claim 1 or 2, wherein the front door is opened by the pressing portion while maintaining the unlocked state.   The unlocking mechanism for unlocking the front door according to any one of claims 1 to 3, wherein a rolling member that rolls in contact with the acting portion is disposed in the acted portion. .   A rear inclined surface that is inclined downward and backward from the top portion and a recess that extends rearward from the rear inclined surface are formed at the rear of the top portion, and the operated portion is fitted into the recess for operation. The unlocking mechanism of the front door according to claim 3 or 4, wherein the member is configured to stop. A housing main body having openings at least on the front surface and the back surface; a front door and a rear door that open and close the front opening portion and the rear opening portion; a locked portion provided on the front door; A movable lock member provided with a lock piece that is supported by the body main body so as to be movable up and down and that moves upward when the front door is closed, and a last retracted position and a most advanced position by the casing main body. An operation member that is supported so as to freely move forward and backward, and that moves the movable lock member up and down to lock the lock piece to the locked portion or release the lock.
The front part of the operation member is in a closed state provided at the front end of the action part, and an action part that lowers the movable lock member in contact with the action part of the movable lock member in the process of moving forward. It has a pressing part that presses the back of the front door forward and opens it,
In the process in which the operating member moves from the last retracted position to the most advanced position, the action part gradually lowers the movable lock member to release the locking of the locked part by the lock piece, Furthermore, the unlocking mechanism for unlocking the front door is characterized in that the operation member is moved to the most advanced position to press and open the back surface of the front door in which the pressing portion is in the closed state.   A housing structure comprising the unlocking mechanism for the front door according to any one of claims 1 to 6.   A money handling apparatus comprising the housing structure according to claim 7.

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