JP6136762B2 - Door switch and vending machine equipped with this door switch - Google Patents

Description

  The present invention relates to a door switch suitable for a vending machine provided with a door that is openably and closably supported by a box-shaped main body case having an open front surface, and a vending machine provided with the door switch.

  As a vending machine equipped with this type of door switch, a vending machine in which a product stored in a cabinet of a main body case is directly visible is known. This vending machine includes a door having a large transparent window on the front surface of a main body case formed as a heat insulating casing so that the inside can be seen through. A product storage rack constructed by arranging a plurality of product columns arranged vertically and horizontally in a row of the main body case to store products such as canned beverages and plastic bottled beverages in a line in the front and rear, and the product storage rack Equipped with a bucket unit for receiving the product delivered from the product column at the front position of the product, a Y transport mechanism for moving the bucket unit up and down in an elevator manner, and a cooling / heating unit for cooling or heating the product at the bottom of the cabinet Has been deployed. The front of the door is provided with a ten-key product selection button, a liquid crystal display for displaying sales information, a coin insertion slot, a bill insertion slot, a return lever, etc., and a product outlet, and a door lock device. The keyway is open. Note that in a vending machine equipped with electronic money instead of cash, an antenna unit that holds an IC card in which cash information is recorded is provided in the customer service unit. A coin recognition device, a bill recognition device, etc. are arranged on the rear surface of the door corresponding to the customer service section, while a main body that controls the illumination light source, the cooling / heating unit, the product sales control, etc. on the back of the door A control unit is disposed, and a cooling unit of a cooling / heating unit, a refrigerator condensing unit constituting a refrigeration cycle, and a power supply device are disposed at the bottom of the main body case as a machine room.

  The main body control unit is connected to a door switch that detects an open / closed state of a door provided in the main body case. Based on the signal from the door switch, the main body control unit shuts off the electrical wiring that could cause an electric shock out of the wiring from the door switch power supply when the door was opened during maintenance, etc., and closed the door. When the coin tube of the coin discriminator and the bill storage part of the bill discriminator are not completely installed, an alarm is issued and the reception of coins and bills is started, that is, the product is controlled. The bucket unit is accessed in front of the selected product column by driving the Y transport mechanism based on the sales command by operating the selection button, and the product delivered from the product column is transferred to the bucket unit. Is moved to the position of the product outlet of the door to carry out the product.

  By the way, the door of the vending machine having the entire body case as a product storage room is composed of a single door with a transparent window, a customer service part, and a product outlet, which is well known from the past. It is in place. On the other hand, the interior of the case of the main body case is divided into a product storage room and a room temperature room surrounded by the heat insulating wall by dividing the interior of the case by a heat insulating partition wall, and the door is a first door with a transparent window; There is also known one that is divided into a second door provided with a customer service section and arranged in a main body case in a double door manner so as to be opened and closed (for example, Patent Document 1). The outer door provided with the transparent window in the patent document corresponds to the first door, and the operation door provided with the customer service portion corresponds to the second door.

JP 2009-2111271 A

  As described above, when the door in the vending machine is composed of one door body, only one door switch is sufficient, whereas when the door is composed of the first door and the second door, two door switches are required. To do. Although only the door switch of the outer door as a 1st door is indicated by the said patent document 1, since the door switch for exclusive use is provided in the outer door (1st door), it is the operation door (2nd door). In order to detect opening and closing, it is considered that a dedicated door switch is required for the second door. In this way, in order to detect the open / closed state of a plurality of double doors, it is necessary to have a number of door switches corresponding to the number of doors, so the number of parts is increased and the increase in cost is unavoidable. Have

  Here, it is possible to detect the opening and closing of the door only by the door switch of the first door by closing the first door after closing the second door described in Patent Document 1. Even if it is going to close the 1st door in the state which forgot to close, it has the subject that the means which cannot lock the 1st door is needed.

  Accordingly, the present invention has been made in view of the above points, and an object of the present invention is to solve the above-described problems and detect the open / close state of a double door with a closing order determined by a smaller number of switches than the number of doors. An object of the present invention is to provide a door switch capable of preventing the closing of the door when the closing order is wrong and a vending machine equipped with the door switch.

In order to achieve the above object, the invention according to claim 1 is a door switch for detecting the open / closed state of the double door first door and the second door, in which the order of closing the first door and the second door is determined. The door switch includes a switch for detecting opening and closing of the second door, and a latch member for operating the switch. The latch member extends to the front of the upper flange, and extends to the front of the lower flange. The first door detection piece is configured to press the latch piece by closing the first door to release the latch of the latch member, and then the hook engagement piece fixed to the slider provided on the second door is lowered. The second door is closed, and the switch is operated via the first door detection piece by pressing the latch piece downward .

  According to a second aspect of the present invention, in the door switch according to the first aspect of the present invention, the door switch includes a biasing unit that biases the latch member in a direction protruding into the rotation range of the first door, and the first door is closed. The latch member protrudes to the latch position when opened from the completed state.

According to a third aspect of the present invention, there is provided a box-shaped main body case having an open front surface, a product storage room surrounded by a heat insulating wall by dividing the interior of the main body case by a heat insulating partition wall and a room temperature room. The first door that opens and closes the product storage room and the second door that opens and closes the room temperature room are arranged in a double-opening manner in the main body case so that they can be opened and closed, and the first door and the second door are closed in this order. In the vending machine configured as described above, the switch includes a switch for detecting opening and closing of the second door, and a latch member for operating the switch. The latch member includes a latch piece extending forward of the upper flange, and a lower flange. A hook engagement fixed to a slider provided on the second door, comprising a first door detection piece extending forward, pressing the latch piece by closing the first door to release the latch of the latch member Lower the piece and Is closing A, and is characterized in that the door switch for operating the switch through the first door detection piece by pressing the latch piece downwardly provided on the main body case side.

The door switch according to claim 1 of the present invention is a door switch that detects the open / closed state of the double door first door and the second door in which the first door and the second door are closed in order. The door switch includes a switch for detecting opening and closing of the second door and a latch member for operating the switch. The latch member extends to the front of the upper flange and the latch piece extends to the front of the lower flange. The first door detection piece is present, and the latch piece is released by pressing the latch piece by closing the first door, and then the hook engaging piece fixed to the slider provided on the second door is lowered. And closing the second door by closing the first door by closing the second door by operating the switch via the first door detection piece by pressing the latch piece downward. Yo Since the switch can be activated to detect the closing of the first door and the second door, the number of switches can be reduced, and when the order of closing the first door and the second door is wrong. Since the latch member is maintained in the latched state, the door cannot be locked by the door lock device, so that an erroneous operation can be prevented.

  According to the door switch of the present invention, the door switch according to claim 1, further comprising an urging means for urging the latch member in a direction protruding into the rotation range of the first door. When the first door is opened from the closed state, the latch member protrudes to the latch position, so that when the first door is opened following the second door in the closed state, the latch member automatically moves to the latch position. Since it protrudes, it is possible to save the trouble of manually protruding the operating piece to the lock position, and it is possible to eliminate human error.

According to the vending machine according to claim 3 of the present invention, the box-shaped main body case having an open front surface and the interior of the main body case are divided by the heat insulating partition wall in the left-right direction and surrounded by the heat insulating wall. A first door that opens and closes the product storage room and a second door that opens and closes the room storage room in a double-opening manner so as to be openable and closable in the main body case. In the vending machine configured to close in order of the second door, the vending machine includes a switch that detects opening and closing of the second door and a latch member that operates the switch, and the latch member extends forward of the upper flange. A slider provided on the second door after the latch piece and the first door detection piece extending forward of the lower flange, the latch piece being pressed to release the latch member by closing the first door Hook hook fixed to The second door is closed by lowering the piece, and by a door switch for operating the switch through the first door detection piece by pressing the latch piece downwardly provided on the body case side, the first door If the order of closing the second door is incorrect, the latch member is maintained in the latched state, and therefore the door cannot be locked by the door lock device, so that an erroneous operation can be prevented. Play.

It is a front view of the vending machine concerning Embodiment 1 of the present invention. 1A and 1B show a configuration of the vending machine in FIG. 1, in which FIG. 1A is a perspective view seen from the right front side in a door open state, and FIG. 1B is a perspective view of an engagement member. FIG. 2 is a partially cutaway plan view of the vending machine of FIG. 1 in a closed door state. The structure of a coin chute is shown, (a) is a back perspective view which shows the attachment state of a coin chute, (b) is a back perspective view which shows the state which raised the movable cover attached to the coin chute, (c) is a coin chute. FIG. The relationship between a 2nd door and the slider of a door lock apparatus is shown, (a) is a rear perspective view of the 2nd door in which the slider is arrange | positioned, (b) is the disassembled perspective view which removed the slider from the 2nd door. It is a principal part expansion perspective view which shows the relationship between a 2nd door and the disassembled slider. It is a principal part expansion perspective view which shows the relationship between a slider (operation board) and a cylinder lock. The magnet holder is shown, (a) is a partially cutaway perspective view showing a mounting state of the magnet holder, (b) is a perspective view of the magnet holder, and (c) is an exploded perspective view of the magnet holder. A door switch is shown, (a) is a perspective view of a door switch, (b) is an exploded perspective view of a door switch. The operation | movement of a door switch is shown, (a)-(c) is a rear view which shows the operation | movement process of a door switch, (d), (e) is a perspective view which shows the state before and behind operation | movement of a door switch. FIG. 4 is a partially cutaway schematic view showing an engagement state between a hook engaging piece of a slider and a case of a magnet holder and a door switch.

  Hereinafter, a vending machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  1 and 2 showing the external appearance of a vending machine according to an embodiment of the present invention, reference numeral 1 denotes a main body case formed of an outer box formed of a rectangular parallelepiped thin steel plate having an open front surface. The interior is divided into two chambers in the left-right direction by a heat insulating partition wall 10, and the left side chamber in the front view is a top wall, left and right side walls (the right side wall is a heat insulating partition wall 10), a heat insulating board made of urethane foam on the back and bottom walls Is formed as a product storage chamber 1a having a heat insulating structure, and a room on the right side in front view is formed as a room temperature chamber 1b. A plurality of stages of product storage racks 11 are arranged in the product storage chamber 1a of the main body case 1 so as to be able to be pulled out in the vertical direction. A product storage passage (product column) 13 is formed, and products are stored in a line in the front and rear in a spiral space of a spiral member that spirally extends in the front-rear direction. The spiral member laid in the product storage passage 13 is configured as a spiral transport device that is rotationally driven by a bend motor installed at the rear end of the product storage passage 13 and the front end carries out the products one by one. In addition, a bucket unit (not shown) having a size straddling a plurality of left and right rows of product storage passages (product columns) 13 is vertically movable up and down in the front area of the product storage rack 11 in a plurality of upper and lower stages of the product storage chamber 1a. It is arranged. The bucket unit is coupled to a timing belt (not shown) arranged over an upper and lower pulley provided in the front area of the product storage chamber 1a, and the rotating shaft of the upper pulley is driven by a driving means such as a stepping motor. Is configured to move up and down via a timing belt. In this example, the product storage chamber 1a is formed as a cold exclusive chamber, and a cooling unit (evaporator of the refrigerator) is installed in the lower part of the cabinet. The cooling unit is the bottom of the main body case 1, It is connected by piping to a compressor, a condenser and the like installed in the machine room located behind the outlet 1c.

  1 and 2, reference numerals 2 and 3 denote a first door and a second door which are provided on the front surface of the main body case 1 so as to be openable and closable in a double door manner by a hinge mechanism (not shown). The first door 2 is provided on a case reinforcing frame disposed on the left side of the door main body case 1 so as to be opened and closed by a hinge mechanism. The first door 2 is a double transparent member (rectangular glass in the embodiment) 20. A door frame is formed by combining the end faces of the upper, lower, left, and right hard gaskets 2a to 2d arranged around and assembled in a frame shape, and the double transparent member 20 forms a door frame in the product storage chamber 1a. It is formed so that the goods accommodated in can be visually recognized. The hard gasket 2c provided with a hinge mechanism between the main body case 1 is reinforced by a reinforcing metal fitting (not shown), and the hinge metal fitting is coupled. In the first door 2, the side surface of the hard gasket 2 d opposite to the hinge mechanism (hereinafter also referred to as the anti-hinge side surface) extends to substantially the center of the front end of the heat insulating partition wall 10 so as to close the front surface of the product storage chamber 1 a. The hard gasket 2 d facing the front end of the heat insulating partition wall 10 is configured to abut against a soft seal member 11 a provided on the front surface of the heat insulating partition wall 10. Further, an engaging member 21 made of a long steel plate having an L-shaped cross section and extending in the vertical direction is fixed to the side opposite to the hinge of the first door 2. The engaging member 21 is formed such that one leg piece having an L-shaped cross section faces the front end of the heat insulating partition wall 10 and the other leg piece is fixed to the side opposite to the hinge of the first door 2 with a screw. A plurality of overhanging pieces 22 extending from the one leg piece to the anti-hinge mechanism side and extending toward the room temperature chamber 1b are provided. When the first door 2 is closed, the protruding piece 22 that has advanced to the room temperature chamber 1b side is attracted to the magnets provided in the plurality of magnet holders 6 disposed on the room temperature room 1b side of the heat insulating partition wall 10. It is configured. Although the magnet holder 6 will be described later, the first door 2 is maintained in a state where the front surface of the product storage chamber 1a is closed by the protruding piece 22 being attracted to the magnet.

  On the other hand, the second door 3 is made of a sheet metal formed in a box shape whose back is open, and is provided on a case reinforcing frame 1e (see FIG. 3) arranged on the right side of the main body case 1 so as to be opened and closed by a hinge mechanism. It has been. The hinge mechanism includes a shaft portion formed in a curl shape on the case side hinge fitting 1f fixed to the case reinforcing frame 1e of the main body case 1, and a door side hinge fitting 3b fixed to the right door frame 3a of the second door 3. It consists of a shaft (not shown) penetrating a shaft portion formed in a curl shape. The second door 3 has a ten-key push button 31 as an input unit for designating a purchased product with a combination of numeric keys on the front surface, a liquid crystal display 32 for displaying sales information above the ten-key push button 31, and a coin below it. An insertion slot 33 and a return lever 34 are arranged, a bill insertion slot 35 is arranged above the liquid crystal display 32, and a coin return slot 36 is arranged at the lower part. A cylinder lock 41 having a groove is provided. A coin identifying device 37, a bill identifying device 38, a safe 39, and the like are mounted on the back of the second door, and the coins inserted from the coin insertion slot 33 are guided to the coin identifying device 37 via the coin chute 30 to insert the bills. A bill inserted from the mouth 35 is configured to be directly received by the bill recognition device 38. Further, the second door 3 has a side surface (hereinafter also referred to as an anti-hinge side surface) of the left side door frame 3c opposite to the hinge mechanism so as to close the front surface of the room temperature chamber 1b until the substantially center of the front end of the heat insulating partition wall 10. The left door frame 3c of the second door 3 is formed so that the length in the front-rear direction is shorter than the length of the right door frame 3a, and the first door 2 is closed. When the two-door 3 is closed, a flange that overlaps one leg piece of the L-shaped engagement member 21 provided in the first door 2 in the front-rear direction and faces the inner side of the left door frame 3 c is the engagement of the first door 2. The front surface of the second door 3 is configured so as to be flush with the front surface of the first door 2 in contact with the cushion 1g provided at the L-shaped bent portion of the combined member 21. The second door 3 is provided with a blindfold board 300 for closing the rectangular window. When electronic money is mounted instead of cash, the blindfold board 300 is removed and the IC card on which the cash information is recorded is held over. An antenna unit is provided.

  Here, FIG. 4 shows a coin chute 30 that links a coin insertion port 33 on the front surface of the second door 3 and a coin identification device 37 mounted on the back surface of the second door 3. This coin chute 30 constitutes a coin guide passage that accepts coins thrown in a horizontal posture from a coin slot 33, slides down a downwardly inclined portion, and changes direction to a vertical posture through the vertical portion. It is. The coin chute 30 is an assembly of a resin lower frame 301 that forms the inside of the coin guide passage, and an upper guard member 302 that closes the outside of the sheet metal coin guide passage. In FIGS. 4A and 4B, reference numeral 340 denotes a return operation member that is connected to the rear end of the coin return lever 34 and cooperates with an opening lever 371 that opens the coin sorter of the coin identification device 37.

  The lower frame 301 is formed with a slit 301a for draining rainwater entering from the coin insertion port 33 on the sliding surface of the bowl-shaped coin guide passage, and collects the rainwater discharged through the slit 301a to collect the rear surface of the second door 3. A drainage channel that discharges to the side is formed. The coin chute 30 is fixedly attached to the door frame of the second door 3 with a screw S1 so that the inlet portion faces the coin insertion port 33, while the outlet portion is a funnel-shaped coin recognition device 37. It faces the coin receiving port 370 with a predetermined gap. The predetermined gap means that the coin receiving port 370 does not come into contact with the coin chute 30 when the coin discriminating device 37 is attached / detached (the upper end side is rotated with the shaft on the lower end side of the coin discriminating device 37 as a fulcrum). And it is also a gap with some margin. The coin chute 30 having this configuration is well known in the art. When there is a gap between the outlet portion of the coin chute 30 and the funnel-shaped coin receiving port 370 of the coin identifying device 37, the coin chute 310 Since the trajectory of the coin entering the coin receiving port 370 of the coin identifying device 37 is indefinite, the coin released from the outlet portion of the coin chute 310 collides with the inner wall of the funnel-shaped coin receiving port 370 and becomes funnel-shaped. A coin that has collided with and bounced off the inner wall of the coin receiving port 370 may jump out of the coin receiving port 370.

  Therefore, a movable cover 310 is additionally provided at the outlet of the known coin chute 30. The movable cover 310 is made of a rectangular flat sheet metal, and two sliding grooves 311 and 311 extending in the vertical direction are formed on the plate surface, and a finger hook portion 312 is formed at the upper end. In order to attach the movable cover 310 to the outlet portion of the coin chute 30 so as to be slidable in the vertical direction, a mounting bracket 303 having a vertical surface 303 a is fixed to the upper guard member 302 of the coin chute 30. A screw hole into which two stepped screws 321 and 322 are screwed is tapped on the vertical surface 303a of the mounting bracket 303. The stepped screws 321 and 322 are screwed to the vertical surface 303 a of the mounting bracket 303 through the sliding grooves 311 and 311 of the movable cover 310. Here, the width of the sliding grooves 311 and 311 of the movable cover 310 is larger than the diameter of the body of the stepped screws 321 and 322 and smaller than the diameter of the head of the stepped screws 321 and 322. Yes. Moreover, the thickness (plate thickness) of the movable cover 310 is formed of a sheet metal having a thickness smaller than the height of the body portion of the stepped screws 321 and 322. Therefore, in a state where the movable cover 310 is attached to the mounting bracket 303 via the stepped screws 321 and 322, the movable cover 310 is in such a manner that the upper edges of the sliding grooves 311 and 311 abut against the stepped screws 321 and 322 by its own weight. It hangs down to a lowered position and can be swung freely. In this case, the positions of the sliding grooves 311 and 311 and the length in the vertical direction are such that the lower end of the movable cover 310 hanging down to the lowered position extends to at least the upper end of the coin receiving port 370 of the coin identifying device 37. It is determined that the lower end of the movable cover 310 that is raised to the raised position with a finger attached to the finger hook portion 312 is positioned at least at the lower end of the outlet portion of the coin chute 30.

  The movable cover 310 having such a configuration is provided so as to be slidable in the vertical direction at the outlet portion on the outside side of the coin chute 30, and the outlet portion on the outside side of the coin chute 30 and the coin at all times hanging down to the lowered position. A gap between the identification device 37 and the coin receiving port 370 is closed. As a result, when a coin released from the outlet of the coin chute 310 collides with the movable cover 310, the movable cover 310 swings and displaces to absorb the impact. As a result, the coin that has collided with the movable cover 310 falls downward without being largely rebounded and is collected at the coin receiving port 370 of the coin identifying device 37. On the other hand, when the coin released from the outlet of the coin chute 310 collides with the inner wall of the coin receiving port 370 of the coin discriminating device 37 opposite to the movable cover 310 and rebounds, the coin collides with the movable cover 310. After the impact is absorbed, it falls downward and is collected in the coin receiving port 370 of the coin identifying device 37. Therefore, the movable cover 310 can be slidably moved in the vertical direction at the outlet portion on the outside side of the coin chute 30 and can be displaced so that the funnel-shaped coin receiver of the coin discriminating device 37 and the coin chute 30 can be displaced. Coins can be prevented from jumping out from the gap between the entrance 370 and the entrance 370. Further, when attaching or detaching the coin discriminating device 37, it is only necessary to attach or remove the coin discriminating device 37 after attaching a finger to the finger hooking portion 312 of the lowered movable cover 310 and raising it to the upper limit position.

  As described above, the first door 2 and the second door 3 which are provided in a double-opening manner so as to be opened and closed are closed when the second door 3 is closed after the first door 2 is closed. Is configured to overlap the engagement member 21 provided on the side opposite to the hinge of the first door 2 in the front-rear direction, and the cylinder provided in the second door 3 after closing the first door 2 and the second door 3 in this order. A door lock device that locks the first door 2 and the second door 3 by inserting and rotating a key (not shown) in the key insertion groove of the lock 41 will be described below with reference to FIGS. Note that FIG. 5 shows a state in which the coin identifying device 37, the bill identifying device 38, and the like disposed on the back surface of the second door 3 are removed for easy understanding of the arrangement configuration of the door lock device.

  The door lock device slides in the vertical direction in conjunction with the cylinder lock 41 provided on the second door 3 and has two sliders 4 including hook engaging pieces 40 and the body case 1 in the left-right direction. It consists of the latching | locking part 5 (refer FIG. 2) provided in the normal temperature chamber 1b side of the heat insulation partition wall 10 divided | segmented into a chamber. The locking portion 5 is also used as a case 61 of the magnet holder 6 and a case 71 of the door switch 7 which will be described later.

  The slider 4 is made of a flat plate member extending in the vertical direction, as shown in FIG. 5B showing a state disassembled from the second door 3. The slider 4 is formed with a flange (see also FIG. 6) by bending both ends on the long side in the same direction. In addition, the hook 4 and the stepped screw 410 are attached to the slider 4 so as to be dispersed in the vertical direction, and the operating piece 4A is attached to a position slightly above the center in the vertical direction. As shown in an enlarged view in FIG. 6, the hook engaging piece 40 has a notch opened downward, and is fixed to the flat plate surface of the slider 4 with screws S2 to S4. Hook engaging pieces 40 are attached. Further, the stepped screw 410 is screwed into a screw hole tapped on the flat plate surface of the slider 4 from the back side of the slider 4, and in this embodiment, three stepped screws 410 in the vertical direction. Is installed. Further, as shown in an enlarged view in FIG. 7, the operating piece 4A has one L-shaped leg piece fixed to the flat plate surface of the slider 4 with a screw, while the other leg piece extends in the horizontal direction. A long hole 4A1 is formed.

  A case reinforcing frame 3A made of a thick steel plate extending in the vertical direction is fixed by welding to the opposite hinge side surface (inner wall of the left door frame 3c) of the second door 3 on which the slider 4 is disposed. A U-channel guide rail member 3A1 (see also FIG. 6) is formed by bending the front region side of the frame 3A toward the inside of the second door 3. A plate surface protruding inward of the second door 3 of the U-channel guide rail member 3A1 communicates with a long groove 3A21 extending in the vertical direction and an upper portion of the long groove 3A21 and is larger than the width of the long groove 3A21. A sliding groove 3A2 composed of a large diameter portion 3A22 is formed. The sliding grooves 3A2 are formed in the guide rail member 3A1 so as to be distributed in the vertical direction at the same pitch as the stepped screws 410 screwed to the slider 4, and are formed in a diameter of the large diameter portion 3A22 of the sliding groove 3A2. Is larger than the diameter of the head of the stepped screw 410, the width of the long groove 3A21 is larger than the diameter of the body of the stepped screw 410, and smaller than the diameter of the head of the stepped screw 410. It is stipulated in. In FIG. 5B, the lower sliding groove 3A2 is formed in a place hidden behind the constituent members of the second door 3, and cannot be seen in the drawing.

  Here, the slider 4 is formed to be slightly larger than the U-channel guide rail member 3A1, and the guide rail is configured such that the hook engagement piece 40 protrudes toward the rear of the second door 3. It arrange | positions so that member 3A1 may be covered. In this case, the head of the stepped screw 410 screwed to the back surface of the slider 4 is passed through the large diameter portion 3A22 of the sliding groove 3A2 formed in the guide rail member 3A1, and then the slider 4 is lowered to move the step. The body portion of the accessory screw 410 is fitted into the long groove 3A21 of the sliding groove 3A2. Thereby, the flat surface of the slider 4 is arrange | positioned so that a slide movement is possible in the up-down direction in the aspect which becomes parallel to the left door frame 3c of the 2nd door 3. FIG. The slider 4 disposed in parallel with the left door frame 3 c of the second door 3 is positioned closer to the left door frame 3 c than the cylinder lock 41 fixed to the second door 3.

  In a state where the stepped screw 410 screwed to the back surface of the slider 4 is in contact with the lower edge of the long groove 3A21 of the sliding groove 3A2 formed in the guide rail member 3A1, that is, in the locked state where the slider 4 is lowered to the lower limit position. The operating piece 4A attached to the slider 4 is positioned in the vicinity of the cylinder lock 41 fixed to the second door 3, and the elongated hole 4A1 formed in the other leg piece of the operating piece 4A extends in the horizontal direction. Located on the back of the. As shown in FIG. 7, a rectangular operation lever 43 is attached to the rear end of the inner cylinder of the cylinder lock 41. A rectangular hole 431 that matches the shape of the rear end of the inner cylinder of the cylinder lock 41 and that is slightly larger than the rear end of the inner cylinder is formed on one side in the longitudinal direction of the operation lever 43, while the other side extends in the longitudinal direction. Is tapped with a screw hole of a stepped screw 44. The operating lever 43 is fixed to the rear end of the inner cylinder of the cylinder lock 41 with a nut N1 after the rectangular hole 431 is fitted to the rear end of the inner cylinder of the cylinder lock 41. In the case of FIG. 7 in which the cylinder lock 41 is locked, the operation lever 43 has a horizontal posture in the longitudinal direction, and the screw hole 432 of the operation lever 43 extends in the horizontal direction formed in the other leg piece of the operating piece 4A. It is comprised so that it may overlap in the front-back direction at one end part (right end side in FIG. 7A) of the elongated hole 4A1. Here, the width of the long hole 4 </ b> A <b> 1 of the operating piece 4 </ b> A is set to a size that is smaller than the diameter of the head of the stepped screw 44 and larger than the diameter of the body of the stepped screw 44. Therefore, the cylinder lock 41 and the slider 4 are connected via the operation lever 43 and the operating piece 4A by screwing the stepped screw 44 into the screw hole 432 of the operating lever 43 through the elongated hole 4A1 of the operating piece 4A1. The

  With this configuration, a key is inserted from the front of the second door 3 into the key insertion groove of the cylinder lock 41 in the locked state, so that the cylinder lock 41 is rotated approximately 90 in the clockwise direction (counterclockwise in the direction of arrow A in FIG. 7A). The stepped screw 44 moves clockwise from the inner cylinder of the cylinder lock 41 via the operation lever 43 and moves from the right end side to the left end side of the long hole 4A1 of the operating piece 4A. Raise. When the cylinder lock 41 is rotated 90 degrees clockwise, the slider 4 rises to the upper limit position (unlocked), and the stepped screw 410 screwed to the slider 4 at this time is attached to the guide rail member 3A1 of the case reinforcing frame 3A. It is located in the long groove 3A21 below the large diameter portion 3A22 of the formed sliding groove 3A2. When the cylinder lock 41 is rotated 90 degrees counterclockwise from the unlocked state in which the slider 4 is raised to the upper limit position, the slider 4 is lowered by the operation opposite to the above-described operation, and the locked state shown in FIG. . In this way, the slider 4 slides up and down in conjunction with the cylinder lock 41, and the hook engaging piece 40 fixed to the slider 4 also slides up and down in the same manner.

  On the other hand, the engaging portion 5 (see FIG. 2) that engages and disengages from the hook engaging piece 40 is the room temperature chamber 1b side of the heat insulating partition wall 10 that divides the interior of the main body case 1 into two chambers in the left-right direction. In this embodiment, the case 61 of the magnet holder 6 and the case 71 of the door switch 7 are also used as the locking portion 5 in this embodiment. Hereinafter, the magnet holder 6 and the door switch 7 will be described. To do.

  As shown in FIG. 2, the magnet holder 6 is arranged in three locations in the vertical direction, and FIG. 8A shows an enlarged mounting state of the magnet holders 6 arranged in a dispersed manner. In (b) and (c), a perspective view and an exploded view of the upper magnet holder 6 are shown. As shown in FIG. 8, the magnet holder 6 includes a case 61 having a thin box-like container shape. The case 61 is attached as if a thin box-shaped container is put on the heat insulating partition wall 10, and in the following description, front and rear, upper and lower, left and right are states attached to the heat insulating partition wall 10, That is, it refers to the state seen from the front of the vending machine indicated by the white arrow in FIG.

  The case 61 is made of a thick steel plate whose upper surface, lower surface and left side are open, and two screws are inserted into a flange 61a bent from the front wall to the left side and a flange 61b bent from the rear wall to the rear side. A hole (in the drawing, a part of the screw insertion hole 61a1 of the flange 61a is visible, and the other screw insertion holes are hidden by the case 61 and cannot be seen) is formed. An opening 61c that is long in the vertical direction is formed in the front wall of the case 61, and the opening 61c extends to the flange 61a. Further, a tool insertion hole is formed in the right side wall of the case 61 so that the screw insertion holes 61a1 and 61a2 formed in the flange 61a can be viewed.

  A magnet mounting base 62 is attached to an opening 61 c formed in the front wall of the case 61. The magnet mounting base 62 is made of a synthetic resin including a body portion 621 embedded so that the plate-shaped magnet 60 is exposed, and flanges 622 and 622 projecting up and down. In the back, triangular locking claws 623 and 623 that are elastically deformable are formed. The flange 622 of the magnet mounting base 62 is formed larger than the opening 61c formed in the front wall of the case 61, while the body 621 is formed smaller than the opening 61c. The magnet mounting base 62 has its body 621 inserted into the opening 61c from the front of the case 61 and is pushed so that the locking claws 623 and 623 get over the edge of the opening 61c. 623 is restored to its original state and is attached to the front wall of the case 61 by turning around the back of the front wall of the case 61. Thus, the magnet holder 6 in which the magnet mounting base 62 is integrated is disposed and mounted on the upper and middle stages of the heat insulating partition wall 10, and the magnet holder 6 on which the magnet mounting base 62 is not mounted on the lower stage. 6 (case 61) is disposed. The magnet holder 6 is fixed to the heat insulating partition wall 10 with screws through the screw insertion holes 61a1, 61a2 formed in the flanges 61a, 1b of the case 61. In addition, the heat insulation partition wall 10 is comprised so that a metal plate may be affixed so that the heat insulation board which consists of urethane foam exposed to the normal temperature chamber 1b side may be covered, and the screw which fixes the magnet holder 6 can be attached. is there.

  The magnet holder 6 having such a configuration is attached in such a manner that the magnet 60 faces the front by being dispersed vertically on the room temperature chamber 1 b side of the heat insulating partition wall 10. In this case, the mounting positions of the upper and middle magnet holders 6 are such that the first door 2 is closed from the state in which the first door 2 and the second door 3 of the double doors are opened, and the hard gasket 2d of the first door 2 is insulated from the heat insulating partition. When contacting the soft gasket 11 a provided on the front surface of the wall 10, the projecting piece 22 of the engaging member 21 provided on the side opposite to the hinge of the first door 2 is attached to the magnet 60 attached to the front wall of the magnet holder 6. The position is determined to be in contact with and adsorbed. Therefore, when the first door 2 is closed, the first door 2 is attracted to the magnet 60, and the heat insulation state of the product storage chamber 1a by the first door 2 is maintained. Since the lower magnet holder 6 is positioned below the first door 2, the magnet 60 (magnet mounting base 62) that attracts the first door 2 is not attached, and the magnet holder 6 Only the case 61 is attached.

  Next, as shown in FIG. 2, the door switch 7 is disposed at a substantially middle position in the vertical direction of the heat insulating partition wall 10. This door switch 7 is shown in an enlarged manner in FIG. 9, and FIG. Also illustrated. As shown in FIG. 9, the door switch 7 includes a case 71 having a thin box-like container shape. The case 71 is attached as if a thin box-shaped container is put on the heat insulating partition wall 10, and in the following description, front and rear, upper and lower, left and right are states attached to the heat insulating partition wall 10, That is, it indicates a state as seen from the front of the vending machine indicated by a white arrow in FIG.

  In the door switch 7, a latch member 72 and a return spring 73 are built in a case 71, and a push button switch 74 is attached to the lower wall of the case 71. The case 71 is made of a thick steel plate whose upper surface and left side are open, and a screw insertion hole is formed in a tab of a flange 71a with a tab bent from the front wall to the left side (also referred to as the open side). Two screw insertion holes (invisible in the case 71 in FIG. 9) are formed in the flange 71b bent in the direction opposite to the open surface side, and the heat insulating partition wall 10 is screwed through each screw insertion hole. Mounted. An opening 71c is formed on the lower side of the front wall of the case 71, and a screw hole is tapped on the right side wall (also referred to as a bottom surface).

  The latch member 72 built in the case 71 includes a rectangular base 721, upper and lower flanges 722 and 723 bent in the same direction from the upper and lower edges of the rectangular base 721, and a spring locking piece 724 cut and raised from the rear edge (FIG. 10). See also reference). A pair of sliding grooves 720 formed of a combination of a vertical groove 720a extending in the vertical direction and a horizontal groove 720b extending in the horizontal direction are formed on the plate surface of the rectangular base 721 so as to be shifted in the vertical and horizontal directions. . In addition, the upper and lower flanges 722 and 723 are formed as a double-holding piece in a manner extending forward from the rectangular base 721, and the piece extending forward in the lower flange 723 is pressed by the first door 2. A piece that is formed as a first door detection piece 723a and extends forward in the upper flange 722 is formed as a latch piece 722a. A stopper piece 723b extending downward from the double-holded first door detection piece 723a is formed. The latch member 72 is slidably attached to the case 71 by stepped screws 75 and 75 which are inserted into the sliding grooves 720 and 720 and screwed into screw holes tapped on the bottom surface of the case 71. The latch member 72 attached to the case 71 via the stepped screws 75, 75 is a spring that is cut and raised from the screw locking hole 71 d provided above the opening 71 c in the front wall of the case 71 and the rear edge of the latch member 72. The return spring 73 stretched between the locking piece 724 is always urged forward.

  Here, the first door detection piece 723a and the latch piece 722a are moved through the opening 71c formed in the front wall of the case 71 by the first door detection piece 723a as the latch member 72 slides in the front-rear direction. The latch piece 722a can be moved forward and backward from the upper area of the upper edge of the front wall of the case 71. In this case, the positions of the first door detection piece 723a, the latch piece 722a, and the opening 71c are determined so that the first door detection piece 723a is located in the vicinity of the upper edge of the opening 71c formed on the front wall of the case 71. ing. The first door detection piece 723a and the latch piece 722a are in a standby state in which the stepped screws 75, 75 are positioned at the edges of the horizontal grooves 720b, 720b of the sliding grooves 720, 720 by the urging force of the return spring 73. It projects forward from the front wall of 71. In this standby state, the lower flange 723 of the latch member 72 faces the push button 741 of the push button switch 74 in a non-contact state.

  The door switch 7 having such a configuration is attached to the heat insulating partition wall 10 on the room temperature chamber 1a side in such a manner that the latch piece 722a and the first door detection piece 723a face forward. In this case, the first door detection piece 723a is set at a position facing one of the plurality of overhanging pieces 22 of the engaging member 21 provided on the side opposite to the hinge of the first door 2. When the double door type first door 2 and the second door 3 are opened, as shown in FIGS. 10A and 10D, the latch piece 722a and the first door detection piece 723a are moved forward. It will be in the standby state protruding. In this standby state, when the first door 2 is closed, the first door detection piece 723a protruding forward from the front wall of the case 71 of the door switch 7 is an overhanging piece of the engaging member 21 provided on the first door 2. 22 and pressed. Accordingly, the latch member 72 is returned to the return spring 73 via the first door detection piece 723a (in FIG. 10, the return spring 73 is indicated by a dotted line so that the relationship between the sliding groove 720 and the stepped screw 75 becomes clear. ) Slide back while stretching. The stepped screw 75 inserted through the horizontal groove 720b of the pair of sliding grooves 720 by the rearward movement of the latch member 72 relatively moves in the horizontal groove 720b, and then the tension of the engaging member 21 in the first door 2 is increased. When the protruding piece 22 is attracted to the magnet 60 attached to the front wall of the case 61 of the magnet holder 6, the state is maintained at the intersection of the horizontal groove 720b and the vertical groove 720a (FIG. 10B). )). In this case, the latch piece 722 a of the latch member 72 is located behind the front wall of the case 71. The posture of the latch member 72 moving rearward is such that the upper and lower flanges 622 and 623 are maintained in a horizontal state by stepped screws 75 respectively inserted into the horizontal grooves 720b of the pair of sliding grooves 720. Next, when the second door 3 is closed, the left door frame 3 c of the second door 3 covers the engagement member 21 provided on the first door 2 and overlaps with the front and rear.

  Here, when the second door 3 is closed, the cylinder lock 41 of the door lock device is in the unlocked state, so that the slider 4 rises to the upper limit position, and the hook engaging piece 40 fixed to the slider 4 is also moved accordingly. Is rising. As described above, when the left door frame 3c of the second door 3 in the state where the cylinder lock 4 is unlocked and the slider 4 is raised to the raised position is closed so as to overlap the engaging member 21 provided on the first door 2. The middle hook engaging piece 40 enters the upper region of the door switch 7, and a notch opened below the hook engaging piece 40 is located above the front wall of the case 71 of the door switch 7. The notches opened below the upper and lower hook engaging pieces 40 are positioned above the front wall of the case 61 of the upper and lower magnet holders 6. With the second door 3 closed, a key is inserted into the key insertion groove of the unlocked cylinder lock 41 from the front of the second door 3 so that the cylinder lock 41 is turned counterclockwise (in FIG. When rotated (locked) approximately 90 degrees in the clockwise direction opposite to A), the stepped screw 44 is centered on the inner cylinder of the cylinder lock 41 via the operation lever 43 fixed to the rear end of the inner cylinder of the cylinder lock 41. Rotate counterclockwise to lower the slider 4. The hook engaging piece 40 descending together with the slider 4 contacts the upper flange 722 of the latch member 72 of the door switch 7 and presses the latch member 72 downward. In this case, since the front wall of the case 71 of the door switch 7 (and the case 61 of the magnet holder 6) enters the notch opened below the hook engaging piece 40 (see FIG. 11), the magnet holder 6 and the door switch 7 Therefore, the lowering of the hook engaging piece 40 (slider 4) is not hindered. The latch member 72 pressed downward by the hook engaging piece 40 has a stepped screw 65 positioned at the intersection of the horizontal groove 720b and the vertical groove 720a of the pair of sliding grooves 720 of the latch member 72, respectively. Slide down. As the latch member 72 slides downward, the lower flange 723 of the latch member 72 comes into contact with and presses the push button 741 of the push button switch 74. As a result, the push button switch 74 is activated to transmit a closed state signal of the first door 2 and the second door 3 ((c) in FIG. 10). Further, as shown in FIG. 11, the notch opened below the hook engaging piece 40 fixed to the slider 4 is engaged with the case 61 of the magnet holder 6 and the front wall of the case 71 of the door switch 7 to thereby form the first. The door 2 and the second door 3 are locked. In this case, the return spring 73 incorporated in the case 71 of the door switch 7 has a high front side locked to the front wall of the case 71 as shown in FIG. The latch member 72 has a force that pulls the latch member 72 that has been moved forward and inclined backward so that the rear side locked by the spring locking piece 724 cut and raised from the rear edge of 721 is lowered. Has been granted.

  When the first door 2 and the second door 3 locked by the door lock device are unlocked, a key is inserted into the key insertion groove of the locked cylinder lock 41 from the front of the second door 3 so that the cylinder lock 41 is watched. When rotated approximately 90 degrees in the direction (counterclockwise in the direction of arrow A in FIG. 7A), the stepped screw 44 pivots clockwise about the inner cylinder of the cylinder lock 41 via the operation lever 43 to move the slider. 4 is lifted to disengage the hook engaging piece 40 from the front wall of the case 61 of the magnet holder 6 and the case 71 of the door switch 7. Thereby, after opening the 2nd door 3, the 1st door 2 can be opened. Here, when the first door 2 and the second door 3 are locked, the return spring 73 built in the case 71 of the door switch 7 is inclined upward as shown in FIG. Thus, the latch member 72 that has moved rearward is in a state of being biased so as to be pulled up to the front side. When the hook engaging piece 40 is lifted in conjunction with the unlocking of the cylinder lock 41 from this state, the latch member 72 is slid upward by the urging force that pulls the latch member 72 forward by the return spring 73, that is, the latch member 72. The stepped screw 65 that slides upward along the stepped screw 65 positioned in the vertical groove 720a of the pair of sliding grooves 720 formed in the vertical direction of the sliding groove 720 is moved relative to the vertical groove 720a. When reaching the intersection of the groove 720a and the horizontal groove 720b, the latch piece 722a extending forward from the upper flange 722 of the latch member 72 advances to the upper region from the upper edge of the front wall of the case 71. When the latch piece 722a of the latch member 72 advances above the upper edge of the front wall of the case 71, the latch piece 72 is allowed to move forward, so that the stepped screw 65 slides due to the urging force of the return spring 73. While moving to the edge of the horizontal groove 720b of the groove 720, the latch member 72 slides forward, and the latch piece 722a and the first door detection piece 723a return to a standby state in which they protrude forward from the front wall of the case 71. To do.

  Now, in the above description, the operation of the door switch 7 when the double door first door 2 and the second door 3 are normally closed, that is, when the second door 3 is closed after the first door 2 is closed will be described. However, the operation of the door switch 7 when the second door 3 and the first door 2 are closed in this order due to human error will be described below. When the second door 3 is closed before the first door 2 is closed, the flange facing inward of the left door frame 3c of the second door 3 faces the engaging member 21 of the first door 2 and the first door 2 is closed. The latch piece 722a and the first door detection piece 723a projecting forward of the latch member 72 of the door switch 7 in contact with the cushion 1g (see FIG. 3) provided at the bent portion of the engagement member 21 on the side opposite to the hinge. Located in the front area. That is, the flange facing inward of the left door frame 3c of the second door 3 is latched so as not to contact the latch piece 722a and the first door detection piece 723a protruding forward of the latch member 72 in the door switch 7. The piece 722a and the first door detection piece 723a are separated from each other in the depth direction. Therefore, the latch piece 722 a of the latch member 72 in the door switch 7 maintains a state of protruding forward from the upper edge of the front wall of the case 71. Therefore, when the second door 3 is closed and a key is inserted into the key insertion groove of the cylinder lock 41 to operate (rotate) the cylinder lock 41 from the unlocked state to the locked state, the second door 3 is fixed to the slider 4. Even if the hook engaging piece 40 abuts on the upper flange 722 of the latch member 72, the latch piece 722a of the latch member 72 protrudes forward from the front wall of the case 71 and is latched, so that the cylinder lock 41 is operated in the locked state. There is no (rotation). In other words, the door cannot be locked even if the door is locked by the door lock device. Therefore, when the order in which the first door 2 and the second door 3 are closed is mistaken due to human error, the door switch 7 can prevent the second door 3 from being locked to prevent erroneous operation.

  As described above, in the door switch 7 according to this embodiment, the open / close state of the double-split first door 2 and the second door 3 in which the first door 2 and the second door 3 are sequentially closed. The door switch 7 includes a switch (push button switch 74) for detecting opening and closing of the second door 3, and a latch member 72 for operating the switch (push button switch 74). The first door 2 is closed by releasing the latch of the latch member 72 by closing the door 1 and operating the switch (push button switch 74) via the latch member 72 by closing the second door 3. When the second door 3 is closed, the switch (push button switch 74) is actuated to detect the closing of the first door 2 and the second door 3. The number of the latches 74) can be reduced, and when the order of closing the first door 2 and the second door 3 is wrong, the latch member 72 is maintained in the latched state, so that the second door 3 Since the door cannot be locked by the door lock device, it is possible to prevent erroneous operation.

  In the vending machine according to this embodiment, the box-shaped main body case 1 having an open front surface and the interior of the main body case 1 are divided by the heat insulating partition wall 10 in the left-right direction and surrounded by the heat insulating wall. The product storage room 1a and the room temperature room 1b are divided into a first door 2 that opens and closes the product storage room 1a and a second door 3 that opens and closes the room temperature room 1b so as to be openable and closable in the case 1 In a vending machine configured to close the first door 2 and the second door 3 in this order, a switch (push button switch 74) for detecting opening and closing of the second door 3 and the switch (push button switch 74) are provided. The latch member 72 is operated, and the latch of the latch member 72 is released when the first door 2 is closed, and the switch (push button switch 74) is operated via the latch member 72 when the second door 3 is closed. Do By providing the switch 7 on the main body case 1 side, when the order of closing the first door 2 and the second door 3 is mistaken, the latch member 72 is maintained in the latched state. Since the door cannot be locked by the door lock device, it is possible to prevent erroneous operation.

In the above-described embodiment, the door lock device is described as applied to the first door and the second door that can be opened and closed in a double door manner. However, the door lock device is not divided into left and right doors. The present invention can also be applied to the door body, and the ratio of the door lock device in the width dimension of the door can be reduced.
In the above-described embodiment, the engaging portion 5 that engages and disengages with the hook engaging piece 40 of the slider 4 has been described as the case 61 of the magnet holder 6 and the case 71 of the door switch 7. A dedicated component can also be used as the locking portion 5. Therefore, the present invention is not limited by the embodiments.

  DESCRIPTION OF SYMBOLS 1 ... Main body case, 2 ... 1st door, 2a-2d ... Hard gasket, 3 ... 2nd door, 3c ... Left door frame, 4 ... Slider, 4A ... Actuation piece, 5 ... Locking part, 6 ... Magnet holder, DESCRIPTION OF SYMBOLS 7 ... Door switch, 10 ... Thermal insulation partition wall 10 ... Merchandise storage rack, thermal insulation partition wall, 21 ... Engagement member, 22 ... Overhang piece, 30 ... Coin chute, 33 ... Coin slot, 37 ... Coin identification apparatus, 40 ... Hook piece, 41 ... Cylinder lock, 43 ... Operating lever, 60 ... Magnet, 61 ... Magnet holder case, 62 ... Magnet mounting base, 71 ... Door switch case, 72 ... Latch member, 73 ... Return spring, 74 ... pushbutton switch (switch), 310 ... movable cover, 311 ... sliding groove, 321, 322 ... stepped screw, 370 ... coin receiving port, 720 ... sliding groove, 722a ... latch piece, 723a ... 1 door detection piece.

Claims (3)

A door switch for detecting the open / closed state of a double door first door and a second door, in which the order of closing the first door and the second door is determined, wherein the door switch detects the opening / closing of the second door And a latch member for operating the switch, the latch member comprising a latch piece extending forward of the upper flange and a first door detection piece extending forward of the lower flange, and closing the first door After releasing the latch of the latch member by pressing the latch piece, the hook engaging piece fixed to the slider provided on the second door is lowered to close the second door, and the latch piece is moved downward The door switch is characterized in that the switch is actuated through the first door detection piece by pressing the switch. 2. The door switch according to claim 1, further comprising an urging means for urging the latch member in a direction projecting into a rotation range of the first door, and the latch member when the first door is opened from the closed state. Is a door switch characterized by protruding into the latch position. The product storage room is divided into a box-shaped main body case with an opening on the front, and a product storage room surrounded by the heat insulation wall and a room temperature room by dividing the interior of the main body case into a horizontal direction by a heat insulation partition wall. In a vending machine configured such that a first door that opens and closes and a second door that opens and closes a room temperature chamber are disposed in a main body case so as to be openable and closable in a double door manner, and the first door and the second door are sequentially closed The switch includes a switch for detecting opening and closing of the two doors, and a latch member for operating the switch. The latch member extends to the front of the upper flange, and the first door detection piece extends to the front of the lower flange. After the first door is closed, the latch piece is pressed to release the latch of the latch member, and then the hook engaging piece fixed to the slider provided on the second door is lowered to close the second door. And latch piece Vending machine, characterized in that the door switch is provided in the main body case side for actuating the switch through the first door detection piece by pressing downward.

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