JP7021524B2 - vending machine - Google Patents

Description

The present invention comprises a main body cabinet composed of 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 close and open the front surface of the product storage of the main body cabinet. The present invention relates to a vending machine provided with the above, and particularly relates to a lock device for locking the inner door to a main body cabinet in a manner of closing the front surface of the product storage.

Vending machines that sell products such as canned beverages and PET bottled beverages store the products in the product storage of the main body cabinet, which serves as a heat insulating housing, by classifying them into cold, hot, and normal temperature conditions, and store them in the outer door. A plurality of product samples are displayed side by side in the display room, and the products selected based on the operation of the product selection buttons provided corresponding to the product samples are sold. This type of vending machine will be described with reference to FIGS. 6 to 8. 6A and 6B show a conventional vending machine, FIG. 6A is a perspective view of the vending machine with the outer door and the inner door open, FIG. 6B is a front view of the vending machine with the outer door removed, and FIG. 7 is a view. 6 is a perspective view of the locking device, and FIG. 8 is a side view illustrating the operation of the locking device of FIG.

As shown in FIG. 6, this vending machine includes a main body cabinet 1 having an open front surface and a single-opening outer door 2 supported by a hinge mechanism 21 on the front surface of the main body cabinet 1 so as to be openable and closable. The main body cabinet 1 is configured as a heat insulating housing by arranging a heat insulating board made of urethane foam on the upper wall, the left and right side walls, the back wall, and the bottom wall 1a inside the outer box made of steel plate. The inside of the product storage surrounded by the heat insulating board of the main body cabinet 1 is divided into a plurality of product storages 12, 13, and 14 in the left-right direction by the heat insulating partition plate 11. In each of the product storages 12, 13 and 14, a product storage rack 15 having a meandering product storage passage called a serpentine method in this example is housed. The upper end entrance of the product storage passage communicates with the product input port SL, and a product carry-out device (not shown) is arranged at the exit of the product storage passage. At the lower part of the product storage rack 15, a product carry-out shooter 16 is arranged so as to be inclined forward. The space behind the product unloading shooter 16 that is tilted forward is composed of an evaporator, an internal fan, a heater, etc. (not shown), and the products stored in the product storage rack 15 are cooled or heated. A cooling / heating unit that stores in a cold or hot state is provided. The upper area on the front surface of the outer door 2 is formed as a display room covered with a transparent plate for displaying a product sample, a product selection button unit is provided on the front surface of the transparent plate, and the product selection button unit is displayed. It has a product selection button provided corresponding to the product sample. Further, a coin insertion slot, a bill insertion slot, a coin return opening, a return lever, a product outlet, a handle lock, and the like are provided on the front surface of the outer door 2.

Between the outer door 2 that opens and closes the front surface of the main body cabinet 1 and the front surface of the product storage in the main body cabinet 1, a heat insulating inner door 3 divided into an upper side inner door 3a and a lower side inner door 3b is arranged. It is set up. One end side (left end side in the front view) of the upper side inner door 3a is arranged on the back surface of the outer door 2 so as to be openable and closable via a hinge mechanism (not shown). Close and open the front of the door. One end side (left end side in the front view) of the lower inner door 3b is arranged in the main body cabinet 1 so as to be openable and closable via hinge mechanisms 32 and 32 (see (b) in FIG. 6). On the other end side of the lower inner door 3b (the end opposite to the hinge mechanisms 32 and 32, the right end side when viewed from the front), the lower inner door 3b is installed in the main body cabinet 1 in such a manner as to close the front surface of the product storage. A lock lever 4 for locking to the lock plate 5 provided in the above is provided. 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 such a manner that the front surface of the product storage is closed. Further, the lower inner door 3b is provided with a product carry-out outlet having a carry-out door 31 at a position facing the chute 16 for sending out the goods paid out from the product storage racks 15 of the product storages 12, 13 and 14. ing. The carry-out door 31 is pivotally supported at the upper end and hangs down, and at the same time, the product carry-out outlet is blocked by its own weight to prevent the outflow of cold air or warm air. Is formed so as to be sent to the product outlet 2a of the outer door 2. A gasket (not shown) is provided at a position where the upper inner door 3a and the lower inner door 3b abut on the front surface of the product storage.

The lower part of the bottom wall 1a of the main body cabinet 1 is formed as a machine room 17, and the machine room 17 is provided with an evaporator of the cooling / heating unit and a refrigerator condensing unit (not shown) forming a refrigerating cycle. ing. The refrigerator condensing unit consists of a compressor, a condenser, an outside fan, an expansion valve, etc., and the condenser arranged outside the product storage and the evaporator arranged inside the product storage are via the expansion valve. It is connected by a refrigerant pipe.

As shown in FIG. 7, the lock lever 4 is composed of a round bar-shaped member, and is a straight line that is rotatably and slidably held by a bearing portion 6a of a holding member 6 having a U-shaped vertical cross section fixed to a lower inner door 3b. A shaft portion 41 extending in a shape, an operation portion 42 having a handle portion 42a at a free end and being bent in a manner extending substantially perpendicular to the central axis of the shaft portion 41 on one end side of the shaft portion 41. A rotary slide type provided with an engaging portion 43 extending substantially perpendicular to the central axis of the shaft portion 41 on the other end side of the shaft portion 41 and bent in a manner orthogonal to the operating portion 42. Is formed in. The lock plate 5 is made of a plate-shaped member formed by bending 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 an insertion hole 51 through which the engaging portion 43 of the lock lever 4 can be inserted on the plate surface facing the inside of the refrigerator, so that the lower edge of the insertion hole 51 rises from the front side to the rear side. A lock lever 4 is formed with an inclined inclined surface 52 and a restricting portion 53 extending horizontally on the rear side following the inclined surface 52, and a front wall 54 of a box-shaped peripheral wall is inserted through an insertion hole 51. It is formed as a contact surface that comes into contact with the tip of the engaging portion 43 of the above. The vertical height of the insertion hole 51 has a height at which the engaging portion 43 in a state of facing vertically by the rotation of the lock lever 4 can be inserted, and the width in the front-rear direction is engaged by the rotation of the lock lever 4. It is formed in a manner having a width that allows the shaft portion 41 to move backward when the tip of the portion 43 comes into contact with the front wall 54 (contact surface) and the engaging portion 43 faces in the horizontal direction. ing.

When the lower inner door 3b is locked to the main body cabinet 1 by the lock lever 4, the lower inner door 3b is closed in such a manner as to close the front surface of the product storage of the main body cabinet 1, and then the operation unit 42 of the lock lever 4 is closed. Is separated from the lower inner door 3b by pulling it forward to rotate the lock lever 4, and then sliding the lock lever 4 to the other end side in the width direction (right side when viewed from the front) to insert the lock plate 5 through the hole 51. The engaging portion 43 of the lock lever 4 is inserted into the lock lever 4 ((a) in FIG. 8). Next, the operation unit 42 is pushed downward to rotate the lock lever 4 in such a manner that the operation unit 42 is brought into close contact with the lower inner door 3b. As shown in FIG. 8B, the tip of the engaging portion 43 touches the front wall 54 (contact surface) of the lock plate 5 in the middle of pushing down the operating portion 42 until it comes into contact with the lower inner door 3b. Upon contact, the lock lever 4 (lower inner door 3b) is pressed backward. As a result, the shaft portion 41 of the lock lever 4 moves backward while being guided diagonally upward along the inclined surface 52 of the insertion hole 51, and then rides on the regulation portion 53, and the operation portion 42 hits the lower inner door 3b. The rotation of the contact lock lever 4 is restricted. In this state, as shown in FIG. 8C, the tip of the engaging portion 43 is in contact with the front wall 54 (contact surface) substantially perpendicularly, and the gasket provided on the back surface of the lower inner door 3b ( (Not shown) is pressed against the front surface of the product storage 2, and its vertical position is restricted to a predetermined position and locked.

Japanese Patent No. 3888277

According to the invention disclosed in Patent Document 1, the lower inner door 3b is stored as a product of the main body cabinet 1 by the lock lever 4 attached to the lower inner door 3b and the lock plate 5 attached to the main body cabinet 1. The front of the cabinet can be locked in a closed state, and at that time, the lower inner door 3b is pressed against the front of the product storage to improve the heat insulating property (airtightness) of the lower inner door 3b. It is excellent in that it can be done.

However, with the lower inner door 3b locked to the main body cabinet 1 by the lock lever 4, the tip of the engaging portion 43 of the lock lever 4 comes into contact with the front wall 54 (contact surface) of the lock plate 5 substantially perpendicularly. ing. That is, the point of contact with the front wall 54 (contact surface) of the lock plate 5 at the tip of the engaging portion 43 of the lock lever 4 is the dead center position. The lower inner door 3b is formed as a one-sided door whose one end side in the width direction (left end side in the front view) is connected to the main body cabinet 1 via the hinge mechanisms 32 and 32, and the lower inner door 3b is compared. It is undeniable that the other end side to which the lock lever 4 is attached is tilted so as to be lowered due to the fact that it is a heavy object and that the hinge mechanisms 32 and 32 have "play". Therefore, an external force (during product loading, maintenance) that pushes down the lower inner door 3b in a locked state in which the lower inner door 3b is closed by the lock lever 4 and the lock plate 5 to close the front surface of the product storage of the main body cabinet 1. ), Or when the other end side to which the lock lever 4 is attached is tilted so as to be lowered when vibration is applied to the vending machine, the front wall 54 (contact surface) of the lock plate 5 at the tip of the engaging portion 43 is formed. The lock lever 4 whose contact point is at the dead point also tries to go down, but due to the friction between the tip of the engaging portion 43 and the front wall 54 (contact surface) of the lock plate 5, the lock lever 4 has a lower inner door 3b. There is a risk that the locked state will be pulled out due to the action of a rotational force in the direction opposite to the direction of rotation (direction in which the lock is released) when locking the product with the front surface of the product storage closed.

Further, as described above, since the hinge mechanisms 32 and 32 that support the lower inner door 3b have "play", the lower inner door 3b is displaced in the width direction (left-right direction) by the "play". Therefore, the slide movement amount of the lock lever 4 is determined in anticipation of the above-mentioned "play". However, if the "play" becomes unexpectedly large due to aging, the engaging portion 43 of the lock lever 4 cannot be completely inserted into the insertion hole 51 of the lock plate 5. In this case, when the engaging portion 43 of the lock lever 4 is located at the edge of the insertion hole 51 of the lock plate 5, the engaging portion 43 gets over the edge of the insertion hole 51 by the rotation of the lock lever 4 and is completely inserted. If this is done, the lower inner door 3b can be locked to the main body cabinet 1 by the lock lever 4, but the engaging portion 43 does not get over the edge of the insertion hole 51 due to the rotation of the lock lever 4. The lower inner door 3b cannot be locked to the main body cabinet 1 by the lock lever 4. If the lock lever 4 is operated while moving the lower inner door 3b toward the right end side in the width direction, the engaging portion 43 of the lock lever 4 can be inserted into the insertion hole 51, but the lower inner door in the closed state can be inserted. It is difficult to move 3b to the right end side in the width direction.

In this way, even if the engaging portion 43 of the lock lever 4 reaches the edge of the insertion hole 51 of the lock plate 5, the lower inner door 3b is locked to the main body cabinet 1 by the lock lever 4. There is a risk that things will not be possible. To solve this problem, the slide movement amount of the lock lever 4 may be increased. However, when the slide movement amount is increased, the length of the shaft portion 41 of the lock lever 4 is increased, while the rotary slide type lock lever is increased. The holding member 6 (bearing part 6a) must be enlarged in order to stabilize the holding and operation of 4, and a new lock lever is applied to the existing vending machine (replacement of the lock lever 4 and the holding member 6). Since the 4 and the holding member 6 must be prepared, there is a problem that the number of maintenance parts in stock increases.

The present invention has been made in view of the above points, and an object thereof is to solve the above-mentioned problems and to securely lock the inner door with a lock lever and a lock plate in a state where the front surface of the product storage of the main body cabinet is closed. It is to provide vending machines that can.

In order to achieve the above object, the invention according to claim 1 opens and closes the main body cabinet having a main body cabinet having a heat insulating housing having an open front surface and the main body cabinet in such a manner that the front surface of the product storage of the main body cabinet is closed to insulate. The front of the product storage of the main body cabinet was closed by the one-sided opening type inner door that was freely pivotally supported, the rotary slide type lock lever attached to the inner door, and the lock plate attached to the main body cabinet. A vending machine that locks in a state, with a shaft part with a linear lock lever and an operation part bent so that the lock lever extends substantially perpendicular to the central axis of the shaft part on one end side of the shaft part. , The other end side of the shaft portion is composed of an engaging portion extending in a direction substantially perpendicular to the central axis of the shaft portion and bent in a manner orthogonal to the operation portion, and the lock plate is locked. It has an insertion hole through which the engagement portion of the lever can be inserted and a contact surface that comes into contact with the tip of the engagement portion when the engagement portion rotates forward due to the rotation of the lock lever. The height in the vertical direction has a height that allows the engaging portion to be inserted in a state where it faces in the vertical direction due to the rotation of the lock lever, and the width in the front-rear direction of the insertion hole is such that the tip of the engaging portion is formed by the rotation of the lock lever. In a vending machine formed in a manner having a width that allows the shaft portion to move backward when the engaging portion reaches a state in which the engaging portion faces in the horizontal direction after abutting on the contact surface, the lock lever is used. The engaging part is the tip of the engaging part in a state where the engaging part of the lock lever is brought into contact with the contact surface of the lock plate and the inner door is locked so that the front surface of the product storage of the main body cabinet is closed. It is bent at an angle such that the contact position of the lock plate with the contact surface exceeds the dead point position, and extends diagonally backward in a manner of protruding inward to the front edge of the insertion hole of the lock plate. It is characterized by providing an existing guide piece .

Further, the invention according to claim 2 is characterized in that, in the vending machine according to claim 1 , the guide piece is formed so that the amount of protrusion gradually decreases from the upper end toward the lower side.

According to the vending machine according to claim 1 of the present invention, the main body cabinet is composed of a heat insulating housing having an open front surface, and the main body cabinet is opened and closed in a manner of closing and insulating the front surface of the product storage of the main body cabinet. The front of the product storage of the main body cabinet was closed by the one-sided opening type inner door that was freely pivotally supported, the rotary slide type lock lever attached to the inner door, and the lock plate attached to the main body cabinet. A vending machine that locks in a state, with a shaft part with a linear lock lever and an operation part bent so that the lock lever extends substantially perpendicular to the central axis of the shaft part on one end side of the shaft part. The other end of the shaft is composed of an engaging portion that extends substantially perpendicular to the central axis of the shaft and is bent in a manner orthogonal to the operation portion, and the lock plate is a lock lever. It has an insertion hole through which the engagement portion can be inserted and a contact surface that comes into contact with the tip of the engagement portion when the engagement portion rotates forward due to the rotation of the lock lever, and has a vertical direction of the insertion hole. Has a height that allows the engaging portion to be inserted in a state where the height of the door faces in the vertical direction due to the rotation of the lock lever, and the width of the insertion hole in the front-rear direction is such that the tip of the engaging portion abuts due to the rotation of the lock lever. Engagement of the lock lever in a vending machine formed in a manner having a width that allows the shaft portion to move backward when the engaging portion reaches a state in which the engaging portion faces in the horizontal direction after abutting on the surface. The lock plate at the tip of the engagement part is in a state where the engagement part of the lock lever is brought into contact with the contact surface of the lock plate and the inner door is locked so that the front surface of the product storage of the main body cabinet is closed. It is bent at a sharp angle so that the contact position with the contact surface of the door exceeds the dead point position, and extends diagonally backward in a manner of protruding inward to the front edge of the insertion hole of the lock plate. By providing the existing guide piece, the engaging part of the lock lever is tilted forward in a state where the engaging part of the lock lever is brought into contact with the contact surface of the lock plate and the inner door is locked to the main body cabinet. Since the contact position of the tip of the engagement part of the lock lever with the contact surface of the lock plate exceeds the dead point, an external force that pushes down the inner door or vibration to the vending machine is generated. When it is applied, the engaging part of the lock lever moves downward while maintaining the state of tilting forward, so the rotation direction when locking the inner door to the lock lever with the front of the product storage closed. Can eliminate the action of rotational force in the opposite direction (direction of pulling out the lock), and the lock state of the inner door is unexpectedly pulled out by the lock lever and lock plate. It has the advantage that there is no risk of

Further, according to the vending machine according to claim 1 of the present invention, the lock lever is provided by providing a guide piece extending diagonally backward in a manner protruding inward on the front edge of the insertion hole of the lock plate. When the engaging part of the lock lever is inserted into the insertion hole of the lock plate, even if the engaging part of the lock lever does not reach the insertion hole of the lock plate due to insufficient slide movement amount of the lock lever, the engaging part of the lock lever If the tip of the lock lever comes into contact with the guide piece, the engaging part is guided to the insertion hole along the guide piece by the rotation of the lock lever and the insertion is completed. It is possible to avoid the situation where the lock cannot be locked in the state of being locked to the main body cabinet.

Further, according to the vending machine according to claim 2 , in the vending machine according to claim 1 , the guide piece is formed so that the amount of protrusion gradually decreases from the upper end toward the lower side, so that the lock lever is formed. When the engaging portion of the above is guided to the insertion hole along the guide piece, the part other than the tip of the engaging portion does not come into contact with the guide piece, so that the engaging portion can be smoothly inserted by rotating the lock lever. It will be possible to guide you to.

It is a perspective view of the vending machine which concerns on embodiment of this invention. It shows the vending machine which concerns on embodiment of this invention, and is the perspective view of the vending machine in the state which the outer door and the inner door are open. 2 shows an inner door and a lock lever, (a) is a perspective view of a state where the lock lever is attached to the inner door, (b) is an exploded view of (a), and (c) is a side view of the lock lever. .. The main body cabinet and the lock plate of FIG. 2 are shown, (a) is a perspective view of a state where the lock plate is attached to the main body cabinet, (b) is a sectional view taken along line AA of (a), and (c) is (a). The exploded view of (d) is a rear view of the lock plate. It is a side view explaining the operation of the lock device which consists of a lock lever and a lock plate, and (a) to (c) show the operation process when the inner door is locked in the closed state by the lock device in order. It is a thing. A conventional vending machine is shown, (a) is a perspective view of the vending machine with the outer door and the inner door open, and (b) is a front view of the vending machine with the outer door removed. It is a perspective view of the lock device of FIG. 6 is a side view illustrating the operation of the lock device of FIG. 6, and FIGS. 6A to 6C show in order the operation process when the inner door is locked to the closed state by the lock device.

Hereinafter, the vending machine according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals as those of the conventional vending machines shown in FIGS. 6 to 8 are designated by the same reference numerals, and duplicate description will be omitted.

As shown in FIG. 1, the vending machine according to the present invention has a main body cabinet 1 configured as a heat insulating housing having an open front surface, and a single-door outer door 2 supported on the front surface of the main body cabinet 1 so as to be openable and closable. And an inner door 3 arranged between the outer door 2 and the front surface of the main body cabinet 1. The inside of the main body cabinet 1 configured as a heat insulating housing forms a product storage, and the lower part of the main body cabinet 1 is configured as a machine room 17. The inside of the product storage is divided into a plurality of product storages 12, 13 and 14 in the left-right direction by the heat insulating partition plate 11. In each of the product storages 12, 13 and 14, a product storage rack 15 having a meandering product storage passage called a serpentine method in this example is housed. At the bottom of the product storage rack 15, a product unloading shooter 16 is arranged so as to be inclined forward, and the product stored in the product storage rack 15 is cooled or heated in the space behind the product unloading shooter 16. A cooling / heating unit that stores in a cold or hot state is provided.

The upper area on the front surface of the outer door 2 is formed as a display chamber 23 covered with a transparent plate 22 for displaying a product sample 21, and a product selection button unit 24 is provided on the front surface of the transparent plate 22 to provide a product selection button. The unit 24 has a product selection button 24a provided corresponding to the exhibited product sample 21. Further, on the front surface of the outer door 2, items necessary for selling products such as a coin slot 25, a bill insertion slot 26, a return lever 27, a coin return slot 28, and a product outlet 2a, and the outer door 2 are locked in a closed state. A handle lock 29 or the like is provided.

The inner door 3 is divided into an upper inner door 3a and a lower inner door 3b provided with a carry-out door 31. One end side (left end side in the front view) of the upper side inner door 3a is arranged on the back surface of the outer door 2 so as to be openable and closable via a hinge mechanism (not shown), and the product storage can be arranged according to the opening and closing of the outer door 2. On the other hand, the lower inner door 3b is arranged so that one end side in the width direction (left end side in the front view) can be opened and closed in the main body cabinet 1 via hinge mechanisms 32 and 32 (see FIG. 6). There is. On the other end side of the lower inner door 3b (the end opposite to the hinge mechanisms 32 and 32, the right end side when viewed from the front), the lower inner door 3b is installed in the main body cabinet 1 in such a manner as to close the front surface of the product storage. A lock lever 40 for locking to the lock plate 50 provided in the above is provided. 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 such a manner that the front surface of the product storage is closed. Further, the lower inner door 3b is provided with a product carry-out outlet having a carry-out door 31 at a position facing the chute 16 for sending out the goods paid out from the product storage racks 15 of the product storages 12, 13 and 14. ing. A gasket (not shown) is arranged at a position where the upper inner door 3a and the lower inner door 3b abut on the front surface of the product storage. Further, the upper inner door 3a includes a rectangular heat insulating door main body 30 made of a heat insulating material board such as urethane foam, and a metal outer frame 300 fixed to the edges of the four sides around the heat insulating door main body 30. The lower inner door 3b has a structure in which a heat insulating door body 30 made of a heat insulating material board such as urethane foam is attached behind a thin box-shaped metallic protective plate 301 with an open back surface. .. The structure of the lower inner door 3b may be the same as that of the upper inner door 3a, and a metal protective plate may be provided in front of the inner door 3b. The structure of the inner door 3 is limited to the embodiment. is not it.

As shown in FIG. 3, the lock lever 40 is composed of a round bar-shaped member, and has a linearly extending shaft portion 410 and one end side of the shaft portion 410 in a direction substantially perpendicular to the central axis of the shaft portion 410. An operating portion 420 that is bent in an extended manner and has a handle portion 420a at a free end, and an engaging portion 430 that is bent substantially perpendicular to the central axis of the shaft portion 410 on the other end side of the shaft portion 410. I have. In the engaging portion 430, the engaging portion 430 of the lock lever 40 is brought into contact with the contact surface 550 of the lock plate 50 described later, and the lower inner door 3b is closed to the front surface of the product storage of the main body cabinet 1. The contact position (the point on the line segment P1 shown in FIG. 3C) of the lock plate 50 at the tip of the engaging portion 430 with the contact surface 550 is the dead point position (FIG. 3). It is bent at an angle α in a position beyond the point on the line segment P0 shown in (c), and is inclined forward and downward at an angle α with respect to the shaft portion 410.

As shown in FIG. 3B, the holding member 60 that holds the lock lever 40 is made of metal formed by bending the fixing portion 61 and the lever holding portion 62 at a right angle. The fixing portion 61 is formed with a screw insertion hole 61a and is double-held on the upper end side. The lever holding portion 62 has a U-shaped bearing portion 63, a locking piece 64 located above the bearing portion 63, and a position below the bearing portion 63 that protrudes to one end side in the width direction (left end side in front view). An operation unit contact piece 65 is provided. A screw insertion hole 302 is formed in the side edge of the metal protective plate 301 of the lower inner door 3b, and a locking hole 303 is formed in the front surface of the metal protective plate 301. The operation portion contact piece 65 floats the operation portion 420 of the lock lever 40 from the plate surface of the lower inner door 3b to facilitate the grip portion 420a.

The holding member 60 is attached to the lower inner door 3b as follows. That is, with the shaft portion 410 of the lock lever 40 fitted in the bearing portion 63 of the lever holding portion 62, the locking piece 64 of the lever holding portion 62 is provided on the metal protective plate 301 of the lower inner door 3b. After inserting into the hole 303, the screw insertion hole 61a of the fixing portion 61 is made to face the screw insertion hole 302 of the metal protective plate 301, and then the screw S1 is inserted from the outside of the fixing portion 61 into the screw insertion hole 61a of the fixing portion 61. And screwed by inserting into the screw insertion hole 302 of the metal protective plate 301 and tightening. As a result, the movement of the holding member 60 in the left-right direction is blocked by the screw S1, while the rotation of the holding member 60 in the front-rear direction around the screw S1 is blocked by the locking 64. Then, the lock lever 40, in which the shaft portion 410 is loosely fitted to the bearing portion 63 of the holding member 60 and is attached to the lower inner door 3b, rotates around the shaft portion 410 and moves in the direction of the central axis of the shaft portion 410. It is in the form of a rotary slide type that can be slid.

As shown in FIG. 4, the lock plate 50 includes a rectangular and wide substrate portion 500, a step portion 501 bent at a right angle from the front end of the substrate portion 500, and a substrate portion 500 via the step portion 501. It is made of a thick steel plate formed by bending in a manner having a narrow abutting portion 502 formed integrally. The lock plate 50 is formed corresponding to the shape of the reinforcing frame 100 provided on the other end side of the main body cabinet 1 in the width direction. That is, as shown in FIG. 4B, the reinforcing frame 100 has a convex portion 113 between the front and rear concave portions 111 and 112, and the stepped portion 501 of the lock plate 50 is the height of the convex portion 113 of the reinforcing frame 100. The contact portion 502 is formed so as to abut on 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 substrate portion 500 of the lock plate 50 on the head of the convex portion 113 of the reinforcing frame 100, the amount of protrusion of the lock plate 50 inward (inside the refrigerator) is suppressed, and the turning locus of the lower inner door 3b is obtained. It is configured so that it does not interfere. In FIG. 4B, 1000 is a metal outer frame forming the outer shell of the main body cabinet 1.

An insertion hole 510 through which the engagement portion 430 of the lock lever 40 can be inserted is formed in the substrate portion 500 of the lock plate 50, and the lower edge of the insertion hole 510 is inclined so as to be higher from the front side to the rear side. Following the surface 520 and the inclined surface 520, a regulation portion 530 extending horizontally on the rear side is formed. At the leading edge of the insertion hole 510, a guide piece 540 extending diagonally backward is provided so as to project inward (inside the refrigerator). The guide piece 540 is formed so that the amount of protrusion gradually decreases from the upper end to the lower side. Further, a screw insertion hole 500a is formed 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 to be slightly smaller than the width of the convex portion 113 of the reinforcing frame 100. The rear surface side of the step portion 501 constitutes a contact surface 550 to which the tip of the engaging portion 430 of the lock lever 40 inserted through the insertion hole 510 abuts.

Here, the vertical height of the insertion hole 510 has a height at which the engaging portion 430 in a state of facing vertically by the rotation of the lock lever 40 can be inserted, and the width in the front-rear direction is the rotation of the lock lever 40. It is formed in a manner having a width that allows the shaft portion 410 to move backward when the tip of the engaging portion 430 abuts on the contact surface 550 and the engaging portion 430 reaches a state in which the engaging portion 430 faces in the horizontal direction. It is something that is. As shown in FIG. 4, a screw hole 100a with a screw groove is formed in the head of the convex portion 113 of the reinforcing frame 100 provided on the other end side in the width direction of the main body cabinet 1, and the convex portion 113 is formed. A notch 100b is formed in a part of the lock lever 40 to form a space for receiving the engaging portion 430 of the lock lever 40. The vertical length of the notch 100b is larger than the vertical height of the insertion hole 510 and shorter than the vertical height of the substrate portion 500 of the lock plate 50.

To attach the lock plate 50 to the main body cabinet 1, the locking piece 500b provided on the substrate portion 501 of the lock plate 50 is attached to the convex portion 113 via the notch 100b provided on the head of the convex portion 113 of the reinforcing frame 100. The substrate portion 501 of the lock plate 50 is placed on the head of the convex portion 113 of the reinforcing frame 100 while being inserted into the inside of the above. Then, after the screw insertion hole 500a provided in the substrate portion 501 is confronted with the screw hole 100a having a screw groove provided in the head of the convex portion 113, the screw S2 is passed through the screw insertion hole 500a of the substrate portion 501. It is inserted into a screw hole 100a having a thread groove of the convex portion 113 and screwed. As a result, the movement of the lock plate 50 in the left-right direction is blocked by the screw S2 and the locking piece 500b inserted inside the convex portion 113, while the rotation of the lock plate 50 in the front-rear direction around the screw S2 is blocked by the locking piece. It is blocked by 500b.

Next, the operation when the lower inner door 3b is locked to the main body cabinet 1 by the lock lever 40 will be described with reference to FIG. First, the lower inner door 3b is closed by closing the front surface of the product storage of the main body cabinet 1, and then the operation portion 420 of the lock lever 40 is pulled forward and locked by separating it from the lower inner door 3b. After rotating the lever 40, slide the lock lever 40 to the other end side (right side in the front view) in the width direction to insert the engaging portion 430 of the lock lever 40 into the insertion hole 510 of the lock plate 50 ((FIG. 5). a) See). In this case, even if the amount of slide movement of the lock lever 40 to the other end side in the width direction (right side in the front view) is unexpected and the engaging portion 430 does not reach the insertion hole 510 of the lock plate 50 slightly, the lock lever When the tip of the engaging portion 430 of the 40 reaches the guide piece 540 of the lock plate 50, the engaging portion 430 is guided to the insertion hole 510 along the guide piece 540 by the rotation of the lock lever 40 to complete the insertion. Therefore, it is possible to avoid a situation in which the lower inner door 3b cannot be locked to the main body cabinet 1 by the lock lever 40 due to insufficient slide movement amount of the lock lever 40.

Next, the operation unit 420 is pushed down downward so as to be brought into close contact with the lower inner door 3b to rotate the lock lever 40. When the tip of the engaging portion 430 comes into contact with the contact surface 550 of the lock plate 50 as shown in FIG. 5 (b) in the middle of pushing down the operation portion 420 to bring it into contact with the lower inner door 3b, The lock lever 40 (lower side inner door 3b) is pressed to the rear side. As a result, the shaft portion 410 of the lock lever 40 moves to the rear side while being guided diagonally upward along the inclined surface 520 of the insertion hole 510, and then rides on the regulation portion 530. It comes into contact with 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 engaging portion 430 touches the contact surface 550 of the lock plate 50 at an acute angle with respect to the operating portion 420 parallel to the plate surface of the lower inner door 3b. A gasket (not shown) provided on the back surface of the lower inner door 3b is pressed against the front surface of the product storage 2 to maintain airtightness (heat insulation) by the lower inner door 3b.

Here, in the state shown in FIG. 5 (c), the tip of the engaging portion 430 of the lock lever 40 is located below the horizontal line perpendicular to the central axis of the shaft portion 410 of the lock lever 40 and is a lock plate. It is in contact with the contact surface 550 of 50. That is, the engaging portion 430 of the lock lever 40 has an acute angle with respect to the plate surface of the lower inner door 3b in a state where the operating portion 420 is in contact with the lower inner door 3b (the lever holding portion 62 of the holding member 60). It is tilted forward and downward. Therefore, when an external force that pushes down the inner door 3b on the lower side or vibration is applied to the vending machine, the engaging portion 430 of the lock lever 40 moves downward while maintaining a state of being tilted forward. It is possible to prevent the lever 40 from being subjected to a rotational force in the direction opposite to the rotational direction when the lower inner door 3b is locked with the front surface of the product storage closed, and the lock lever 40 and the lock plate 50 can be prevented from acting. Therefore, the locked state of the lower inner door 3b is not unexpectedly pulled out.

As described above, according to the vending machine of this embodiment, the main body cabinet 1 composed of a heat insulating housing having an open front surface and the front surface of the product storage of the main body cabinet 1 are closed to insulate. Single door 3 (lower side inner door 3b) that can be opened and closed freely in the main body cabinet, rotary slide type lock lever 40 attached to inner door 3 (lower side inner door 3b), and main body cabinet 1 It is a vending machine that locks the inner door 3 (lower side inner door 3b) with the lock plate 50 attached to the main body cabinet 1 in a state where the front surface of the product storage is closed, and the lock lever 40 is linear. The shaft portion 410, the operation portion 420 bent so as to extend substantially perpendicular to the central axis of the shaft portion 410 on one end side of the shaft portion 410, and the shaft portion 410 on the other end side of the shaft portion 410. It consists of an engaging portion 430 that extends substantially perpendicular to the central axis and is bent in a manner orthogonal to the operating portion 420, and the lock plate 50 can insert the engaging portion 430 of the lock lever 40. It has a contact surface 550 that comes into contact with the tip of the engaging portion 430 when the engaging portion rotates toward the front of the 430 due to the rotation of the insertion hole 510 and the lock lever 40. The height in the direction has a height that allows the engaging portion 430 to be inserted in a state of facing vertically by the rotation of the lock lever 40, and the width of the insertion hole 51 in the front-rear direction is the engaging portion due to the rotation of the lock lever 40. Automatic sales formed in a manner having 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 faces in the horizontal direction after the tip of the 430 abuts on the contact surface 550. In the machine, the engaging portion 430 of the lock lever 40 brings the engaging portion 430 of the lock lever 40 into contact with the contact surface 550 of the lock plate 50, and the inner door 3 (lower side inner door 3b) is brought into the main body cabinet 1. In a state where the front surface of the product storage is locked in a closed state, the contact position of the lock plate 50 at the tip of the engaging portion 430 with the contact surface 550 exceeds the dead point position. The engaging portion 430 of the lock lever 40 is locked to the lock plate 50 by providing a guide piece 540 that is bent and extends diagonally rearward to the front edge of the insertion hole 510 of the lock plate 50 so as to project inward. The engaging portion 430 of the lock lever 40 is tilted forward and engaged with the lock lever 40 in a state where the inner door 3 (lower side inner door 3b) is locked to the main body cabinet 1 in contact with the contact surface 550. The contact position of the lock plate 50 at the tip of the joint portion 430 with the contact surface 550 is the dead point. Since it is in contact with the lock lever 40, the engaging portion 430 of the lock lever 40 is tilted forward when an external force pushing down the inner door 3 (lower inner door 3b) or vibration is applied to the vending machine. Since it moves downward while maintaining the state, a rotational force in the direction opposite to the rotational direction when locking the inner door 3 (lower inner door 3b) with the lock lever 40 in a state where the front surface of the product storage is closed is applied. It is possible to eliminate the action, there is no possibility that the locked state of the inner door 3 (lower side inner door 3b) is unexpectedly pulled out by the lock lever 40 and the lock plate 50 , and the insertion hole of the lock plate 50 is not provided. By providing a guide piece 540 extending diagonally backward on the front edge of the 510 so as to project inward, the lock lever is inserted when the engaging portion 430 of the lock lever 40 is inserted into the insertion hole 510 of the lock plate 50. If the tip of the engaging portion 430 of the lock lever 40 comes into contact with the guide piece 540 even when the engaging portion 430 of the lock lever 40 does not reach the insertion hole 510 of the lock plate 50 due to insufficient slide movement amount of 40. Since the engaging portion 430 is guided to the insertion hole 510 along the guide piece 540 by the rotation of the lock lever 40 and the insertion is completed, the slide movement amount of the lock lever 40 is insufficient and the lock lever 40 causes the inner door 3 (lower part). It is possible to avoid a situation in which the side inner door 3b) cannot be locked in a state of being locked to the main body cabinet 1 .

The lock plate 50 described in the above-described embodiment has been described as having a shape corresponding to the shape of the reinforcing frame 100 by utilizing the reinforcing frame 100 of the main body cabinet 1, but the reinforcing frame 100 does not have the convex portion 113. In some cases, it can be formed by bending it into a thin box shape like a conventional device. Further, although the inner door 3 is divided into the upper inner door 3a and the lower inner door 3b, the inner door 3 is not limited to the upper and lower inner doors 3a, and may be a single door 3. Therefore, the present invention is not limited to the embodiments.

1 ... Main body cabinet, 2 ... Outer door, 3 ... Inner door, 3a ... Upper side inner door, 3b ... Lower side inner door, 40 ... Lock lever, 50 ... Lock plate, 410 ... Shaft part, 420 ... Operation part, 430 ... Engagement part, 510 ... Insertion hole, 540 ... Guide piece.

Claims (2)

A main body cabinet consisting of a heat-insulating housing with an open front, and a single-door inner door that can be opened and closed freely to open and close the main body cabinet in a manner that closes and insulates the front of the product storage of this main body cabinet. It is a vending machine that locks the inner door with the rotating slide type lock lever attached to the door and the lock plate attached to the main body cabinet with the front of the product storage of the main body cabinet closed, and the lock lever is straight. The shape of the shaft, the operation part bent so as to extend substantially perpendicular to the central axis of the shaft on one end side of the shaft, and the central axis of the shaft on the other end side of the shaft. It consists of an engaging part that extends substantially vertically and is bent in a manner orthogonal to the operating part, and the lock plate has an insertion hole through which the engaging part of the lock lever can be inserted and the rotation of the lock lever. It has a contact surface that comes into contact with the tip of the engaging portion when the engaging portion rotates forward, and the height of the insertion hole in the vertical direction faces in the vertical direction due to the rotation of the lock lever. A state in which the engaging portion has a height at which the engaging portion can be inserted, and the width of the insertion hole in the front-rear direction is such that the tip of the engaging portion abuts on the contact surface due to the rotation of the lock lever and then the engaging portion faces in the horizontal direction. In a vending machine formed in a manner having a width that allows the shaft portion to move backward when reaching, the engaging portion of the lock lever abuts the engaging portion of the lock lever on the lock plate. With the inner door locked to the surface and the front of the product storage of the main cabinet closed, the contact position with the contact surface of the lock plate at the tip of the engaging part exceeds the dead point position. A vending machine characterized in that it is bent at an angle of a sharp angle in a position where it is positioned, and a guide piece extending diagonally backward is provided on the front edge of the insertion hole of the lock plate so as to project inward. .. The vending machine according to claim 1, wherein the guide piece is formed so that the amount of protrusion gradually decreases from the upper end toward the lower side .

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