CN109920134B

CN109920134B - Automatic vending machine

Info

Publication number: CN109920134B
Application number: CN201811312125.2A
Authority: CN
Inventors: 横田義刚
Original assignee: Fuji Electric Co Ltd
Current assignee: Fuji Electric Co Ltd
Priority date: 2017-12-12
Filing date: 2018-11-06
Publication date: 2021-12-14
Anticipated expiration: 2038-11-06
Also published as: JP7021524B2; JP2019105980A; CN109920134A

Abstract

The invention provides a vending machine. The automatic vending machine can reliably lock the inner door in a state of closing the front surface of the commodity storage of the main body cabinet through the lock rod and the lock plate. The vending machine is provided with a single-opening inner door which is supported on a main body cabinet in a shaft manner that the front surface of a commodity storage warehouse of the main body cabinet is closed and insulated, the lower side inner door (3b) is locked in a state of closing the front surface of the commodity storage warehouse of the main body cabinet (1) through a rotary sliding type lock rod (40) arranged on the lower side inner door (3b) and a lock plate (50) arranged on the main body cabinet (1), and an engagement part (430) of the lock rod (40) is bent at an acute angle forming the following form: when the inner door (3) (lower inner door (3b)) is locked by the lock lever (40) and the lock plate (50), the abutment position between the tip of the engagement portion (430) of the lock lever (40) and the abutment surface (550) of the lock plate (50) is a position beyond the dead center position.

Description

Automatic vending machine

Technical Field

The present invention relates to an automatic vending machine having a main body cabinet including a heat insulating housing having an open front surface and a heat insulating inner door pivotally supported by the main body cabinet so as to be openable and closable in a manner of closing and opening a front surface of a commodity storage container of the main body cabinet, and more particularly to a lock device for locking the inner door to the main body cabinet in a manner of closing the front surface of the commodity storage container.

Background

An automatic vending machine for selling commodities such as canned beverages, plastic bottled beverages and the like is constituted by: the commodity is stored in a cold state, a hot state, and a normal temperature state in a commodity storage compartment of a main body cabinet serving as a heat insulating casing, a plurality of commodity samples are displayed in a left-right array in a display chamber of an outer door, and a commodity selected by an operation of a commodity selection button provided in correspondence with the commodity sample is sold. Such a vending machine will be described with reference to fig. 6 to 8. Fig. 6 shows a conventional vending machine, fig. 6 (a) is a perspective view of the vending machine with an outer door and an inner door opened, fig. 6 (b) is a front view of the vending machine with the outer door removed, fig. 7 is a perspective view of the locking device of fig. 6, and fig. 8 is a side view for explaining an operation of the locking device of fig. 6.

As shown in fig. 6, the vending machine includes a main body cabinet 1 having an open front surface and a single-opening outer door 2 supported openably and closably by a hinge mechanism 21 on the front surface of the main body cabinet 1, and the main body cabinet 1 is configured as a heat insulating casing by disposing heat insulating plates made of urethane foam on an upper wall, left and right side walls, a back wall, and a bottom wall 1a inside an outer box made of a steel plate. The commodity storage compartment surrounded by the heat insulating panels of the main body cabinet 1 is divided into a plurality of

commodity storage compartments

12, 13, and 14 in the left-right direction by heat insulating partitions 11. In this example, each of the

commodity storage containers

12, 13, and 14 stores a commodity storage rack 15 having a meandering commodity storage passage called a serpentine type. An upper end inlet of the commodity storage passage communicates with the commodity input port SL, and a commodity output device (not shown) is disposed at an outlet of the commodity storage passage. A commodity discharge chute 16 is disposed at a lower portion of the commodity storage rack 15 in an inclined manner in a posture that is lower in front and higher in rear. A cooling/heating unit including an evaporator, an in-box fan, a heater, and the like, which are not shown, is disposed in a space behind the commodity discharge chute 16, which is disposed in an inclined manner in a low-to-high posture, and cools or heats commodities stored in the commodity storage rack 15 to store the commodities in a cold state or a hot state. An upper region of the front surface of the outer door 2 is formed as a display chamber covered with a transparent plate for displaying a product sample, and a product selection button unit having a product selection button provided corresponding to the displayed product sample is provided on the front surface of the transparent plate. Further, a coin inlet, a bill inlet, a coin return port, a return lever, a commodity outlet, a handle lock, and the like are provided on the front surface of the outer door 2.

An inner door 3 made of heat insulation and divided into an upper inner door 3a and a lower inner door 3b is disposed between an outer door 2 for opening and closing the front surface of the main body cabinet 1 and the front surface of the commodity storage container of the main body cabinet 1. One end side in the width direction (left end side in front view) of the upper inner door 3a is openably and closably disposed on the back surface of the outer door 2 via a hinge mechanism (not shown), and closes and opens the front surface of the commodity storage container in accordance with the opening and closing of the outer door 2. One end side in the width direction of the lower inner door 3b (the left end side in front view) is openably and closably provided in the main body cabinet 1 via hinge mechanisms 32 and 32 (see fig. 6 (b)). On the other end side (end portion on the opposite side to the hinge mechanisms 32, right end side in front view) of the lower inner door 3b, a lock lever 4 is provided which locks the lower inner door 3b to a lock plate 5 provided in the main body cabinet 1 in a state of closing the front surface of the commodity storage. The lock lever 4 and the lock plate 5 constitute a lock device for locking the lower inner door 3b to the main body cabinet 1 in a state of closing the front surface of the commodity storage. Further, a commodity discharge port having a discharge gate 31 at a position facing the chute 16 through which commodities delivered from the commodity-receiving shelves 15 of the

commodity storage containers

12, 13, and 14 are discharged is provided in the lower inner door 3 b. The output gate 31 is formed such that: the upper end of the lower door is supported by a shaft and hangs down, and the lower door closes the commodity discharge port by its own weight to prevent cold air or warm air from flowing out, and can be pushed open by the commodities discharged through the chute 16, and the commodities can be discharged to the commodity discharge port 2a of the outer door 2. Further, gaskets, not shown, are disposed at a portion where the upper side inner door 3a abuts against the front surface of the commodity storage box and a portion where the lower side inner door 3b abuts against the front surface of the commodity storage box.

A lower portion of the bottom wall 1a of the main body cabinet 1 is formed as an equipment chamber 17, and a freezer condensation unit (not shown) forming a freezing cycle with the evaporator of the cooling/heating unit is disposed in the equipment chamber 17. The refrigerator condensation unit includes a compressor, a condenser, an outdoor fan, an expansion valve, and the like, and the condenser disposed outside the commodity storage and the evaporator disposed inside the commodity storage are connected by a refrigerant pipe via the expansion valve.

As shown in fig. 7, the lock lever 4 is formed of a round bar-shaped member, formed in a rotary slide type, and includes: a shaft portion 41 that extends linearly, and is rotatably and slidably held by a bearing connection portion 6a of a holding member 6 having a U-shaped vertical cross section and fixed to the lower inner door 3 b; an operation portion 42 bent at one end side of the shaft portion 41 so as to extend substantially perpendicularly to the central axis of the shaft portion 41, and having a grip portion 42a at a free end; and an engaging portion 43 that is bent at the other end of the shaft portion 41 so as to extend substantially perpendicular to the central axis of the shaft portion 41 and be perpendicular to the operating portion 42. The lock plate 5 is formed of a plate-like member bent into a thin box shape, and is fixed to the front side of the inner wall on the other end side in the width direction of the main body cabinet 1 by a screw S. The lock plate 5 has a through hole 51 through which the engagement portion 43 of the lock lever 4 can be inserted in a plate surface facing the inside of the storage, and a sloped surface 52 sloped so as to rise from the front side to the rear side and a restriction portion 53 horizontally extending to the rear side following the sloped surface 52 are formed on the lower edge of the through hole 51, and the front wall 54 of the box-shaped peripheral wall is formed as an abutment surface that abuts against the tip end of the engagement portion 43 of the lock lever 4 inserted through the through hole 51. The through-hole 51 is formed as follows: the height of the through-hole 51 in the vertical direction has a height that allows the engagement portion 43 to pass through in a state in which the lock lever 4 is rotated to be oriented in the vertical direction, and the width of the through-hole 51 in the front-rear direction has a width that allows the shaft portion 41 to move rearward when the engagement portion 43 is oriented in the horizontal direction after the tip of the engagement portion 43 abuts against the front wall 54 (abutment surface) by the rotation of the lock lever 4.

When the lower inner door 3b is locked to the main body cabinet 1 by the lock lever 4, after the lower inner door 3b is closed so as to close the front surface of the commodity storage container of the main body cabinet 1, the operation portion 42 of the lock lever 4 is pulled up toward the front side so as to be separated from the lower inner door 3b, the lock lever 4 is rotated, and then the lock lever 4 is slid toward the other end side in the width direction (the right side in the front view) so that the engagement portion 43 of the lock lever 4 is inserted into the through hole 51 of the lock plate 5 ((a) of fig. 8). Next, the operation portion 42 is pressed downward in close contact with the lower inner door 3b to rotate the lock lever 4. As shown in fig. 8 (b), in the middle before the operating portion 42 is pressed into contact with the lower inner door 3b, when the tip of the engaging portion 43 comes into contact with the front wall 54 (contact surface) of the lock plate 5, the lock lever 4 (lower inner door 3b) is pressed rearward. Accordingly, the shaft portion 41 of the lock lever 4 is guided obliquely upward along the inclined surface 52 of the through-hole 51 and moves rearward, and then, when the shaft portion 41 of the lock lever 4 climbs up the regulating portion 53, the operating portion 42 abuts against the lower inner door 3b, and the rotation of the lock lever 4 is regulated. In this state, as shown in fig. 8 c, the tip end of the engaging portion 43 is brought into contact with the front wall 54 (contact surface) substantially vertically, and a spacer (not shown) provided on the back surface of the lower inner door 3b is pressed by the front surface of the commodity storage container 2, so that the vertical position thereof is regulated and locked at a predetermined position.

Patent document 1: japanese patent No. 3888277

Disclosure of Invention

Problems to be solved by the invention

According to the invention described in patent document 1, the lower side inner door 3b can be locked in a state where the lock lever 4 attached to the lower side inner door 3b and the lock plate 5 attached to the main body cabinet 1 close the front surface of the commodity storage container of the main body cabinet 1, and the lower side inner door 3b is pressed by the front surface of the commodity storage container at this time, so that the heat insulation property (airtightness) of the lower side inner door 3b can be improved, which is excellent in this point.

However, in a state where the lower inner door 3b is locked to the main body cabinet 1 by the lock lever 4, the tip end of the engaging portion 43 of the lock lever 4 substantially vertically abuts against the front wall 54 (abutting surface) of the lock plate 5. That is, the point at which the tip end of the engaging portion 43 of the lock lever 4 abuts against the front wall 54 (abutment surface) of the lock plate 5 becomes the dead center position. The lower inner door 3b is formed as a single-opening door having one end side in the width direction (left end side in front view) coupled to the main body casing 1 via the

hinge mechanisms

32 and 32, and as the lower inner door 3b is a heavy object and the

hinge mechanisms

32 and 32 have a "gap", the lower inner door 3b may be inclined such that the other end side to which the lock lever 4 is attached is lowered. Therefore, in the state that the lower inner door 3b is locked by the lock lever 4 and the lock plate 5 in the state of closing the front surface of the commodity storage of the main body cabinet 1, when an external force such as a depression is applied to the lower inner door 3b, (at the time of loading of a commodity, at the time of maintenance), or when vibration is applied to the vending machine, the lower inner door 3b is tilted so that the other end side to which the lock lever 4 is attached is lowered, the lock lever 4 having the abutment point between the tip of the engaging portion 43 and the front wall 54 (abutment surface) of the lock plate 5 at the end point position is also lowered, however, due to friction between the tip of the engaging portion 43 and the front wall 54 (contact surface) of the lock plate 5, a rotational force in a direction opposite to the rotational direction (direction in which the lock is released) when the lower inner door 3b is locked in a state in which the front surface of the commodity storage is closed acts on the lock lever 4, and the locked state may be released.

Further, as described above, since the

hinge mechanisms

32, 32 supporting the lower inner door 3b have "gaps", there is a case where the lower inner door 3b is displaced in the width direction (left-right direction) by an amount corresponding to the "gaps", and therefore, the amount of sliding movement of the lock lever 4 is determined by calculating the "gaps". However, when the "gap" is unexpectedly increased as time passes, the engagement portion 43 of the lock lever 4 cannot be completely inserted into the through hole 51 of the lock plate 5. In this case, when the engagement portion 43 of the lock lever 4 is positioned at the edge of the through-hole 51 of the lock plate 5, if the engagement portion 43 passes over the edge of the through-hole 51 and completely penetrates the through-hole 51 by the rotation of the lock lever 4, the lower inner door 3b can be locked in the state of being locked in the main body cabinet 1 by the lock lever 4, but when the engagement portion 43 does not pass over the edge of the through-hole 51 by the rotation of the lock lever 4, the lower inner door 3b cannot be locked in the state of being locked in the main body cabinet 1 by the lock lever 4. When the lock lever 4 is operated with the lower inner door 3 being positioned on the right end side in the width direction, the engaging portion 43 of the lock lever 4 can be inserted into the through hole 51, but it is difficult to position the lower inner door 3b in the closed state on the right end side in the width direction.

In this way, even if the engagement portion 43 of the lock lever 4 reaches the edge of the through-hole 51 of the lock plate 5, the lower inner door 3b may not be locked in the locked state to the main body cabinet 1 by the lock lever 4. In order to solve this problem, the amount of sliding movement of lock lever 4 can be increased, but when the amount of sliding movement is increased, the length of shaft portion 41 of lock lever 4 must be increased, and on the other hand, holding member 6 (bearing connection portion 6a) must be increased in order to stabilize the holding and operation of lock lever 4 of the rotary sliding type, and in order to apply to an existing automatic vending machine (exchange lock lever 4 and holding member 6), new lock lever 4 and holding member 6 must be prepared, and therefore, there is a problem that the stock number of components for maintenance increases.

The present invention has been made in view of the above-described circumstances, and an object thereof is to solve the above-described problems and to provide an automatic vending machine capable of reliably locking an inner door in a state where the front surface of a commodity storage box of a main body cabinet is closed by a lock lever and a lock plate.

Means for solving the problems

In order to achieve the above object, an invention according to claim 1 is an automatic vending machine including a main body cabinet having an open front surface and including a heat insulating case, and a single-opening type inner door pivotally supported by the main body cabinet so as to be openable and closable in a state where a front surface of a commodity storage container of the main body cabinet is closed and heat insulated, the inner door being lockable in a state where the front surface of the commodity storage container of the main body cabinet is closed by a rotary slide type lock lever attached to the inner door and a lock plate attached to the main body cabinet, the automatic vending machine being formed in a manner such that: the lock lever includes: a shaft portion which is linear; an operating portion bent at one end of the shaft portion so as to extend substantially perpendicularly to a central axis of the shaft portion; and an engaging portion extending in a substantially perpendicular direction with respect to a central axis of the shaft portion and bent at the other end side of the shaft portion so as to be orthogonal to the operating portion, the lock plate including: a through hole through which the engagement portion of the lock lever can pass; and an abutting surface abutting against a tip end of the engaging portion when the engaging portion is rotated forward by rotation of the lock lever, wherein a height in a vertical direction of the through hole has a height through which the engaging portion in a state in which the engaging portion is rotated in a vertical direction by rotation of the lock lever can pass, and a width in a front-rear direction of the through hole has a width allowing the shaft portion to move backward when reaching a state in which the engaging portion is oriented in a horizontal direction after the tip end of the engaging portion abuts against the abutting surface by rotation of the lock lever, the engaging portion of the lock lever being bent at an angle forming an acute angle in a form of: in a state where the engaging portion of the lock lever is brought into contact with the abutment surface of the lock plate to lock the inner door in a state where the front surface of the commodity storage container of the main body cabinet is closed, the abutment position between the tip end of the engaging portion and the abutment surface of the lock plate is a position beyond the dead point position.

The invention according to claim 2 is the vending machine according to claim 1, wherein a guide piece extending obliquely rearward so as to protrude inward is provided at a front edge of the through hole of the lock plate.

In the vending machine according to claim 3 of the invention described in claim 2, the guide piece is formed so that a projecting amount decreases as it goes downward from the upper end.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the invention of claim 1, there is provided an automatic vending machine comprising a main body cabinet having an open front surface and including a heat insulating case, and a single-opening type inner door pivotally supported by the main body cabinet so as to be openable and closable in a manner of closing and heat insulating a front surface of a commodity storage container of the main body cabinet, wherein the inner door can be locked in a state of closing a front surface of the commodity storage container of the main body cabinet by a rotary slide type lock lever attached to the inner door and a lock plate attached to the main body cabinet, the automatic vending machine being formed in a manner such that: the lock lever includes: a shaft portion which is linear; an operating portion bent at one end of the shaft portion so as to extend substantially perpendicularly to a central axis of the shaft portion; and an engaging portion that is bent at the other end side of the shaft portion in a manner extending substantially perpendicularly to the central axis of the shaft portion and being orthogonal to the operating portion, the lock plate including: a through hole through which the engagement portion of the lock lever can pass; and an abutting surface abutting against a tip end of the engaging portion when the engaging portion is rotated forward by rotation of the lock lever, wherein a height in a vertical direction of the through hole has a height through which the engaging portion in a state in which the engaging portion is rotated in a vertical direction by rotation of the lock lever can pass, and a width in a front-rear direction of the through hole has a width allowing the shaft portion to move backward when reaching a state in which the engaging portion is oriented in a horizontal direction after the tip end of the engaging portion abuts against the abutting surface by rotation of the lock lever, and in the automatic vending machine, the engaging portion of the lock lever is bent at an angle forming an acute angle in the following form: in a state where the engaging portion of the lock lever is brought into contact with the contact surface of the lock plate to lock the inner door in a state where the front surface of the commodity storage container closing the main body cabinet is closed, the contact position between the tip end of the engaging portion and the contact surface of the lock plate is a position beyond a dead point position, and thus, in a state where the engaging portion of the lock lever is brought into contact with the contact surface of the lock plate to lock the inner door in the main body cabinet, the engaging portion of the lock lever is inclined downward and upward and comes into contact with the contact surface of the lock plate so that the contact position between the tip end of the engaging portion of the lock lever and the contact surface of the lock plate exceeds the dead point, and therefore, when an external force such as a downward pressure is applied to the inner door or vibration is applied to the automatic vending machine, the engaging portion of the lock lever moves downward while maintaining the inclined downward and in a state where the front end is inclined downward and the rear end is inclined, and therefore, there are advantages: the lock lever is prevented from being acted upon by a rotational force in a direction (unlocking direction) opposite to a rotational direction when the inner door is locked in a state in which the front surface of the commodity storage container is closed, and the locked state of the inner door by the lock lever and the lock plate is not accidentally unlocked.

Further, according to the automatic vending machine according to claim 2 of the present invention, since the guide piece extending obliquely rearward so as to protrude inward is provided at the front edge of the through-hole of the lock plate, when the engagement portion of the lock lever is inserted into the through-hole of the lock plate, even if the engagement portion of the lock lever does not reach the through-hole of the lock plate due to a lack of the amount of sliding movement of the lock lever, the engagement portion can be guided to the through-hole along the guide piece and inserted by the rotation of the lock lever as long as the tip of the engagement portion of the lock lever abuts against the guide piece, and therefore, it is possible to avoid a situation in which the inner door cannot be locked to the main body cabinet by the lock lever due to a lack of the amount of sliding movement of the lock lever.

In the vending machine according to claim 3, in the vending machine according to claim 2, since the guide piece is formed so that the projecting amount decreases as the guide piece goes downward from the upper end, when the engaging portion of the lock lever is guided to the through-hole along the guide piece, a portion other than the tip end of the engaging portion does not abut against the guide piece, and therefore, the engaging portion can be smoothly guided to the through-hole by the rotation of the lock lever.

Drawings

Fig. 1 is a perspective view of an automatic vending machine according to an embodiment of the present invention.

Fig. 2 is a perspective view of an automatic vending machine according to an embodiment of the present invention, in which an outer door and an inner door are opened.

Fig. 3 shows the inner door and the lock lever of fig. 2, fig. 3 (a) is a perspective view showing a state where the lock lever is attached to the inner door, fig. 3 (b) is an exploded view of fig. 3 (a), and fig. 3 (c) is a side view of the lock lever.

Fig. 4 shows the main body cabinet and the locking plate of fig. 2, fig. 4 (a) is a perspective view in a state where the locking plate is mounted to the main body cabinet, fig. 4 (b) is a sectional view taken along line a-a of fig. 4 (a), fig. 4 (c) is an exploded view of fig. 4 (a), and fig. 4 (d) is a rear view of the locking plate.

Fig. 5 is a side view illustrating the operation of the locking device including the lock lever and the lock plate, and fig. 5 (a) to 5 (c) are views sequentially showing the operation process when the inner door is locked in the closed state by the locking device, respectively.

Fig. 6 shows a conventional vending machine, where fig. 6 (a) is a perspective view of the vending machine with the outer door and the inner door open, and fig. 6 (b) is a front view of the vending machine with the outer door removed.

Fig. 7 is a perspective view of the locking device of fig. 6.

Fig. 8 is a side view for explaining the operation of the locking device of fig. 6, and fig. 8 (a) to 8 (c) are views sequentially showing the operation procedure when the inner door is locked in the closed state by the locking device.

Description of the reference numerals

1. A main body cabinet; 2. an outer door; 3. an inner door; 3a, an upper side inner door; 3b, a lower side inner door; 40. a lock lever; 50. a locking plate; 410. a shaft portion; 420. an operation section; 430. a fastening part; 510. a through hole; 540. a guide piece.

Detailed Description

Hereinafter, a vending machine according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the same components as those of the conventional vending machine shown in fig. 6 to 8 are denoted by the same reference numerals, and redundant description thereof is omitted.

As shown in fig. 1, the vending machine according to the present invention includes: a main body cabinet 1 having an opening on the front surface and formed as a heat insulating casing; an outer door 2, which is of a single-opening type, and is supported openably and closably on the front surface of the main body cabinet 1; and an inner door 3 disposed between the outer door 2 and the front surface of the main body cabinet 1. The main body cabinet 1 configured as a heat insulating casing is formed as a commodity storage, and the lower portion of the main body cabinet 1 is configured as an equipment room 17. The commodity storage is partitioned into a plurality of

commodity storage containers

12, 13, and 14 in the left-right direction by heat insulating partitions 11. Each of the

commodity storage containers

12, 13, and 14 houses a commodity storage rack 15 therein, and the commodity storage rack 15 has a meandering commodity storage path called a serpentine path in this example. A commodity discharge chute 16 is disposed in a lower portion of the commodity storage rack 15, the commodity discharge chute 16 being disposed in an inclined manner in a posture that is lower in front and higher in rear, and a cooling/heating unit that cools or heats commodities stored in the commodity storage rack 15 to store the commodities in a cold state or a hot state is disposed in a space behind the commodity discharge chute 16.

An upper region of the front surface of the outer door 2 is formed as a display chamber 23 covered with a transparent plate 22 for displaying the product samples 21, a product selection button unit 24 is provided on the front surface of the transparent plate 22, and the product selection button unit 24 has product selection buttons 24a provided corresponding to the displayed product samples 21. Further, on the front surface of the outer door 2, there are provided components necessary for selling commodities such as a coin insertion port 25, a bill insertion port 26, a return lever 27, a coin return port 28, and a commodity discharge port 2a, a handle lock 29 for locking the outer door 2 in a closed state, and the like.

The inner door 3 is divided into an upper side inner door 3a and a lower side inner door 3b provided with an output door 31. One end side in the width direction of the upper inner door 3a (left end side in the front view) is openably and closably provided on the back surface of the outer door 2 via a hinge mechanism (not shown) and opens and closes the front surface of the commodity storage box in accordance with the opening and closing of the outer door 2, and one end side in the width direction of the lower inner door 3b (left end side in the front view) is openably and closably provided on the main body cabinet 1 via hinge mechanisms 32 and 32 (see fig. 6). A lock lever 40 is provided on the other end side (end portion on the opposite side to the hinge mechanisms 32, right end side in front view) of the lower inner door 3b, and the lock lever 40 locks the lower inner door 3b to a lock plate 50 provided in the main body cabinet 1 in a state of closing the front surface of the commodity storage. The lock lever 40 and the lock plate 50 constitute a lock device for locking the lower inner door 3b to the main body cabinet 1 in a state of closing the front surface of the commodity storage. Further, a commodity discharge port having a discharge gate 31 at a position facing the chute 16 through which commodities delivered from the commodity-receiving shelves 15 of the

commodity storage containers

12, 13, and 14 are discharged is provided in the lower inner door 3 b. Gaskets, not shown, are disposed at a portion where the upper side inner door 3a abuts against the front surface of the commodity storage box and a portion where the lower side inner door 3b abuts against the front surface of the commodity storage box. The upper inner door 3a includes a rectangular heat-insulating door body 30 made of a heat-insulating material plate such as urethane foam and a metal outer frame 300 fixed to the peripheral edges of the four sides of the heat-insulating door body 30, and the lower inner door 3b is configured by attaching the heat-insulating door body 30 made of a heat-insulating material plate such as urethane foam to the back of a thin box-shaped metal shield plate 301 having an open back surface. The lower inner door 3b may be configured as similar to the upper inner door 3a, and a metal protection plate may be provided at the front, and the configuration of the inner door 3 is not limited to the configuration of the embodiment.

As shown in fig. 3, the lock lever 40 is formed of a round bar-shaped member, and includes: a shaft portion 410 extending linearly; an operation portion 420 bent at one end of the shaft portion 410 so as to extend in a direction substantially perpendicular to the central axis of the shaft portion 410, and having a grip portion 420a at a free end; and an engaging portion 430 bent substantially perpendicular to the central axis of the shaft portion 410 on the other end side of the shaft portion 410. The engaging portion 430 is bent at an angle α such that, in a state where the engaging portion 430 of the lock lever 40 is brought into contact with an abutment surface 550 of a lock plate 50 described later to lock the lower inner door 3b to the front surface of the commodity storage container of the main body cabinet 1 closed, an abutment position (a point on a line segment P1 shown in fig. 3 c) between the tip end of the engaging portion 430 and the abutment surface 550 of the lock plate 50 is a position beyond a dead center position (a point on a line segment P0 shown in fig. 3 c), and the engaging portion 430 is inclined at a height from the front to the rear at the angle α with respect to the shaft portion 410.

As shown in fig. 3 (b), the holding member 60 holding the lock lever 40 is made of metal formed by bending the fixing portion 61 and the lever holding portion 62 at right angles. The fixing portion 61 is formed with a screw insertion hole 61a and the upper end side is doubly supported (japanese: ダブルホールド). The lever holding portion 62 is provided with a U-shaped bearing connection portion 63, an engagement piece 64 positioned above the bearing connection portion 63, and an operation portion contact piece 65 positioned below the bearing connection portion 63 and protruding toward one end side in the width direction (the left end side in front view). Further, a screw insertion hole 302 is bored in a side edge of the metallic protective plate 301 of the lower inner door 3b, and a locking hole 303 is bored in a front surface of the metallic protective plate 301. Further, the operation portion contact piece 65 is used to lift the operation portion 420 of the lock lever 40 from the plate surface of the lower inner door 3b and to easily grip the grip portion 420 a.

The holding member 60 is attached to the lower inner door 3b as follows. That is, in a state where the shaft portion 4103 of the lock lever 40 is fitted into the bearing receiving portion 63 of the lever holding portion 62, the locking piece 64 of the lever holding portion 62 is inserted into the locking hole 303 provided in the metallic protective plate 301 of the lower inner door 3b, and then, the screw through hole 61a of the fixing portion 61 and the screw through hole 302 of the metallic protective plate 301 are opposed to each other, and then, the screw S1 is inserted into and fastened to the screw through hole 61a of the fixing portion 61 and the screw through hole 302 of the metallic protective plate 301 from the outside of the fixing portion 61, and is screwed. Thus, the screw S1 can prevent the holding member 60 from moving in the left-right direction, and the locking piece 64 can prevent the holding member 60 from rotating in the front-rear direction about the screw S1. Then, the lock lever 40, which is attached to the lower inner door 3b with the shaft portion 410 in clearance fit with the bearing attachment portion 63 of the holding member 60, is of a rotary slide type capable of rotating about the shaft portion 410 and sliding in the central axis direction of the shaft portion 410.

As shown in fig. 4, the lock plate 50 is made of a thick steel plate bent and formed in a form having a rectangular wide base plate portion 500, a step portion 501 bent at a right angle from the tip of the base plate portion 500, and a narrow abutting portion 502 formed integrally with the base plate portion 500 via the step portion 501. The lock plate 50 is formed in accordance with the shape of the reinforcing frame 100 provided on the other end side in the width direction of the main body cabinet 1. That is, as shown in fig. 4 (b), the reinforcing frame 100 has the convex portion 113 between the front and rear

concave portions

111 and 112, the height of the step portion 501 of the lock plate 50 and the height of the convex portion 113 of the reinforcing frame 100 are substantially equal, and the abutting portion 502 abuts against the bottom of the concave portion 111 of the reinforcing frame 100 when the substrate portion 500 is placed on the head of the convex portion 113 of the reinforcing frame 100. By placing the base plate portion 500 of the lock plate 50 on the head of the projection 113 of the reinforcing frame 100, the amount of projection of the lock plate 50 to the inside (the inside of the garage) is suppressed without interfering with the rotation locus of the lower inner door 3 b. In fig. 4 (b), reference numeral 1000 denotes a metal outer frame that forms the outline of the main body cabinet 1.

A through hole 510 through which the engaging portion 430 of the lock lever 40 can be inserted is formed in the base plate portion 500 of the lock plate 50, and an inclined surface 520 inclined so as to rise from the front side to the rear side and a regulating portion 530 horizontally extending to the rear side following the inclined surface 520 are formed on the lower edge of the through hole 510. A guide piece 540 extending obliquely rearward so as to protrude inward (toward the inside of the container) is provided at the front edge of the through-hole 510. The guide piece 540 is formed such that the amount of projection decreases as it goes downward from the upper end. A screw through hole 500a is bored near the upper end of the plate surface of the substrate portion 500, and a locking piece 500b is provided on the lower edge of the substrate portion 500. The width of the locking piece 500b is formed slightly smaller than the width of the convex portion 113 of the reinforcing frame 100. The rear surface side of the stepped portion 501 forms an abutment surface 550 against which the tip end of the engagement portion 430 of the lock lever 40 inserted through the through-hole 510 abuts.

Here, the through-holes 510 are formed in the following manner: the height of the through-hole 510 in the vertical direction has a height that allows the engagement portion 430 to pass through in a state in which the engagement portion 430 is oriented in the vertical direction by the rotation of the lock lever 40, and the width of the through-hole 510 in the front-rear direction has a width that allows the shaft portion 410 to move backward when the engagement portion 430 is oriented in the horizontal direction after the tip of the engagement portion 430 is brought into contact with the contact surface 550 by the rotation of the lock lever 40. As shown in fig. 4, screw hole 100a with a screw groove is formed at the head of convex portion 113 of reinforcing frame 100 provided at the other end side in the width direction of main body cabinet 1, and notch 100b is formed at a part of convex portion 113 to form a space for receiving engaging portion 430 of lock lever 40. The length of the notch 100b in the vertical direction is formed to be greater than the height of the through-hole 510 in the vertical direction and smaller than the height of the substrate portion 500 of the lock plate 50 in the vertical direction.

The lock plate 50 is mounted to the main body cabinet 1 as follows: the locking piece 500b provided on the substrate portion 501 of the lock plate 50 is inserted into the projection 113 of the reinforcing frame 100 through the notch 100b provided on the head of the projection 113, and the substrate portion 501 of the lock plate 50 is placed on the head of the projection 113 of the reinforcing frame 100. After the screw through hole 500a provided in the base plate portion 501 is opposed to the screw hole 100a with a screw groove provided in the head portion of the convex portion 113, the screw S2 is inserted into the screw hole 100a with a screw groove of the convex portion 113 through the screw through hole 500a of the base plate portion 501 and screwed. Thus, the screw S2 and the locking piece 500b inserted into the convex portion 113 can prevent the lock plate 50 from moving in the left-right direction, and the locking piece 500b can prevent the lock plate 50 from rotating in the front-rear direction about the screw S2.

Next, an operation in a case where the lock lever 40 locks the lower inner door 3b to the main body cabinet 1 will be described with reference to fig. 5. First, after the lower inner door 3b is closed so as to close the front surface of the commodity storage container of the main body cabinet 1, the operating portion 420 of the lock lever 40 is pulled up toward the front side so as to separate the operating portion 420 from the lower inner door 3b, and the lock lever 40 is rotated, and then the lock lever 40 is slid toward the other end side in the width direction (the right side in the front view) so that the engaging portion 430 of the lock lever 40 is inserted into the through hole 510 of the lock plate 50 (see fig. 5 (a)). In this case, even when the sliding movement amount of lock lever 40 to the other end side in the width direction (right side in front view) unexpectedly reaches through-hole 510 of lock plate 50 with a slight difference in engaging portion 430, if the tip end of engaging portion 430 of lock lever 40 reaches guide piece 540 of lock plate 50, engaging portion 430 can be guided along guide piece 540 to through-hole 510 by the rotation of lock lever 40 and penetration can be completed, and therefore, it is possible to avoid a situation in which lower inner door 3b cannot be locked to main body cabinet 1 by lock lever 40 due to insufficient sliding movement amount of lock lever 40.

Next, operation portion 420 is pressed downward in a state where operation portion 420 is brought into close contact with lower inner door 3b, and lock lever 40 is rotated. As shown in fig. 5 (b), in the middle before the pressing operation portion 420 is brought into contact with the lower inner door 3b, when the tip of the engagement portion 430 is brought into contact with the contact surface 550 of the lock plate 50, the lock lever 40 (lower inner door 3b) is pressed rearward. Accordingly, the shaft portion 410 of the lock lever 40 is guided obliquely upward along the inclined surface 520 of the through-hole 510 and moves rearward, and then, when the shaft portion 410 of the lock lever 40 climbs up the restricting portion 530, the operating portion 420 comes into contact with the lower inner door 3b (the lever holding portion 62 of the holding member 60), and the rotation of the lock lever 40 is restricted. In this state, as shown in fig. 5 c, the engagement portion 430 abuts against the abutment surface 550 of the lock plate 50 at an acute angle with respect to the operation portion 420 parallel to the plate surface of the lower inner door 3b, and a gasket (not shown) provided on the back surface of the lower inner door 3b is pressed by the front surface of the commodity storage container 2, whereby airtightness (heat insulation) of the lower inner door 3b can be ensured.

Here, in the state shown in fig. 5 (c), the tip end of the engaging portion 430 of the lock lever 40 is positioned below a horizontal line perpendicular to the central axis of the shaft portion 410 of the lock lever 40 and abuts against the abutment surface 550 of the lock plate 50. That is, the engaging portion 430 of the lock lever 40 is inclined forward and backward at an acute angle with respect to the plate surface of the lower inner door 3b in a state where the operating portion 420 abuts against the lower inner door 3b (the lever holding portion 62 of the holding member 60). Therefore, when an external force such as a downward pressure is applied to the lower inner door 3b or when vibration is applied to the vending machine, since the engaging portion 430 of the lock lever 40 moves downward while maintaining a state of being inclined low in the front and high in the rear, it is possible to avoid a rotational force in a direction opposite to a rotational direction when the lower inner door 3b is locked in a state of closing the front surface of the commodity storage container from acting on the lock lever 40, and the locked state of the lower inner door 3b by the lock lever 40 and the lock plate 50 is not accidentally released.

As described above, according to the vending machine of the present embodiment, which has the main body cabinet 1 including the heat insulating housing having the open front surface and the single-opening type inner door 3 (lower side inner door 3b) axially supported to be openable and closable by the main body cabinet 1 so as to close and insulate the front surface of the commodity storage room of the main body cabinet 1, the inner door 3 (lower side inner door 3b) is locked in a state of closing the front surface of the commodity storage room of the main body cabinet 1 by the rotary slide type lock lever 40 attached to the inner door 3 (lower side inner door 3b) and the lock plate 50 attached to the main body cabinet 1, the vending machine is formed in such a manner that: the lock lever 40 includes: a shaft portion 410 having a linear shape; an operating portion 420 bent at one end of the shaft portion 410 so as to extend substantially perpendicularly to the central axis of the shaft portion 410; and an engaging portion 430 bent at the other end side of the shaft portion 410 so as to extend substantially perpendicularly to the central axis of the shaft portion 410 and to be orthogonal to the operation portion 420, the lock plate 50 including: a through hole 510 through which the engaging portion 430 of the locking lever 40 can pass; and an abutting surface 550 that abuts against a tip end of the engaging portion 430 when the engaging portion 430 is rotated forward by rotation of the lock lever 40, wherein a height in a vertical direction of the through-hole 510 has a height through which the engaging portion 430 in a state in which the engaging portion 430 is oriented in a vertical direction by rotation of the lock lever 40 can pass, and a width in a front-rear direction of the through-hole 51 has a width that allows the shaft portion 410 to move backward when the engaging portion 430 reaches a state in which the engaging portion 430 is oriented in a horizontal direction after the tip end of the engaging portion 430 is abutted against the abutting surface 550 by rotation of the lock lever 40, and in the automatic vending machine, the engaging portion 430 of the lock lever 40 is bent at an angle that forms an acute angle in the following manner: in a state where the engaging portion 430 of the lock lever 40 is brought into contact with the contact surface 550 of the lock plate 50 to lock the inner door 3 (the lower inner door 3b) in a state where the front surface of the commodity storage container of the main body cabinet 1 is closed, and the contact position between the tip end of the engaging portion 430 and the contact surface 550 of the lock plate 50 is a position beyond the dead point position, in a state where the engaging portion 430 of the lock lever 40 is brought into contact with the contact surface 550 of the lock plate 50 to lock the inner door 3 (the lower inner door 3b) in the main body cabinet 1, the engaging portion 430 of the lock lever 40 is inclined downward and upward and comes into contact with the contact surface 550 of the lock plate 50 so that the contact position between the tip end of the engaging portion 430 of the lock lever 40 and the contact surface 550 of the lock plate 50 is beyond the dead point, and therefore, in a case where an external force such as a downward pressure is applied to the inner door 3 (the lower inner door 3b) or a vibration is applied to the automatic vending machine, since the engaging portion 430 of the lock lever 40 moves downward while maintaining a state of being inclined vertically downward, the following effects are obtained: it is possible to avoid the lock lever 40 from being acted upon by a rotational force in a direction opposite to the rotational direction when the inner door 3 (lower inner door 3b) is locked in a state in which the front surface of the commodity storage container is closed, and to prevent the lock lever 40 and the lock plate 50 from accidentally releasing the locked state of the inner door 3 (lower inner door 3 b).

In addition, although the lock plate 50 according to the above-described embodiment has been described as the lock plate that uses the reinforcing frame 100 of the main body cabinet 1 and corresponds to the shape of the reinforcing frame 100, a lock plate that is formed by bending a thin box shape as in the conventional device may be used in the case where the reinforcing frame 100 does not include the projection 113. Further, although the inner door 3 is divided into the upper inner door 3a and the lower inner door 3b, the inner door is not limited to the vertical division, and may be a single inner door. Therefore, the present invention is not limited to the embodiments.

Claims

1. An automatic vending machine having a main body cabinet having an opening on the front surface and including a heat insulating case, and a single-opening type inner door pivotally supported by the main body cabinet so as to be openable and closable in a manner of closing the front surface of a commodity storage container of the main body cabinet and insulating the front surface, the inner door being lockable in a state of closing the front surface of the commodity storage container of the main body cabinet by a rotary slide type lock lever attached to the inner door and a lock plate attached to the main body cabinet, the automatic vending machine being formed in a manner such that: the lock lever includes: a shaft portion which is linear; an operating portion bent at one end of the shaft portion so as to extend substantially perpendicularly to a central axis of the shaft portion; and an engaging portion that is bent at the other end side of the shaft portion in a manner extending substantially perpendicularly to the central axis of the shaft portion and being orthogonal to the operating portion, the lock plate including: a through hole through which the engagement portion of the lock lever can pass; and an abutting surface abutting against a tip end of the engaging portion when the engaging portion is rotated forward by rotation of the lock lever, wherein a height of the through hole in a vertical direction has a height through which the engaging portion in a state in which the engaging portion is rotated in a vertical direction by rotation of the lock lever can pass, and a width of the through hole in a front-rear direction has a width allowing the shaft portion to move backward when the engaging portion reaches a state in which the engaging portion is oriented in a horizontal direction after the tip end of the engaging portion abuts against the abutting surface by rotation of the lock lever,

the locking part of the lock rod is bent at an acute angle forming the following shape: in a state where the engaging portion of the lock lever is brought into contact with the abutment surface of the lock plate to lock the inner door in a state where the front surface of the commodity storage container closing the main body cabinet is closed, an abutment position between a tip end of the engaging portion and the abutment surface of the lock plate is a position beyond a dead point position where the tip end of the engaging portion abuts against the abutment surface substantially perpendicularly to the abutment surface.

2. The vending machine of claim 1,

a guide piece is provided on the front edge of the through hole of the lock plate and extends obliquely rearward so as to protrude inward.

3. The vending machine of claim 2,

the guide piece is formed in a manner that the projection amount decreases with the downward direction from the upper end.