JPH03206595A - Cooling/heating switching device for automatic vending machine - Google Patents

Abstract

PURPOSE:To facilitate a cooling/heating operation by performing the opening/closing operation of a shutter via a lever by performing the turning operation of a handle at the front terminal similarly as a switch from the front side of a housing room, and moving the handle at a closed position to a turning terminal position by pressing the front terminal with the back face of a door. CONSTITUTION:The handle 35 supported in such a way that it can be turned freely within a plane in parallel with the wall plane of a heat insulation parting wall 31, and the lever 33 whose one terminal is supported at the rear terminal of the handle and whose other terminal at the shutter 18 in such a way that they can be turned freely are provided at the heat insulation parting wall which partitions two housing rooms 3, 4 whose front terminals are abutted with the back plane of the door 7 and their intermediate parts are neighbored mutually. Therefore, the opening/closing operation of the shutter 18 can be performed via the lever 33 by performing the turning operation of the handle 35 at the front terminal from the front side of the housing rooms 3, 4 similarly as the switch, and also, the handle 35 can be moved to a turning end position at the closed position of the door 7 by pressing the front terminal with the back face of the door 7. In such a way, the switching operation of the heating/ cooling of the housing room by the shutter can be easily performed.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is a method for storing products such as foods and beverages packaged in bottles, cans, paper cartons, etc. in a storage chamber with compartments formed inside. This invention relates to a cooling/heating switching device for vending machines that sell vending machines.

[Conventional technology]

In vending machines that sell products such as beverages packaged in bottles, cans, paper cartons, etc., the products are sold hot or cold depending on the product type, season, etc.

For this reason, a vending machine that can switch between cooling and heating in a compartmentalized storage chamber is equipped with a heating device in one of the two adjacent storage chambers and a cooler in the other, and an insulated partition that separates the two chambers. Cooling and heating are switched by opening and closing ventilation holes formed in the walls leading to the compartments using shutters. That is, air cooled by a cooler or warm air warmed by a heating device is circulated between rooms through vents to enable cooling/heating switching, and this type of cooling/heating switching device for vending machines was developed in 1983. A conventional example disclosed in the publication No. 19186 is shown in FIGS. 3 to 5. Fig. 3 is a front view of a conventional vending machine with the door open showing the internal structure including the cooling/heating switching device; Fig. 4 is a partial sectional view of the right side of the main part of the lower part of the heat insulating partition wall in Fig. 3; FIG. 5 is (2) a cross-sectional view of the main part of the lower part of the heat insulating partition wall of FIG. 3, and in FIGS. 4 and 5, the left side of the figure is the front side.

In FIGS. 3 to 5, 1 is a case with an open front, and inside this case 1 there are two first storage chambers 3 which are adjacent to each other and partitioned left and right by a heat insulating partition wall 2, and which are open at the front. and a second storage chamber 4 are partitioned by a heat insulating wall, and within the first storage chamber 3 and the second storage chamber 4, product storage shelves 5 for storing products are respectively provided. In addition, the case 1 is provided with a heat-insulating door 7 that covers the front openings of the case 1, the first storage chamber 3, and the second storage chamber 4, and has a product outlet 6 that opens at the front and takes out the product. Supported for free movement. Further, in the wind tunnels 8 and 9 which are open on both the front and rear sides provided at the back of the lower part of the first storage chamber 3 and the second storage chamber 4, a blower 10 is supported at a position that closes the front opening, and a blower 10 is supported at a position that closes the front opening. At the closing position, a cooler 11, which is an evaporator of a cooling device, is installed on the first storage chamber 3 side, and a heater 12 is installed on the second storage chamber 4 side.

In the lower part of the case 1 (3) below the first storage chamber 3 and the second storage chamber 4, a condenser 13, etc., which is a component of the cooling device, is installed.

On the other hand, at the back of the lower part of the heat insulating partition wall 2, a certain interval is placed in the front and back.
First ventilation port 1 that communicates the first storage chamber 3 and the second storage chamber 4
4 and a second ventilation port l5 are formed, and this second ventilation port 15
and its surrounding area including the first ventilation port 14 and the heat insulating partition wall 2
A continuous recess 16 is formed on the front side. A first shutter 18, which opens and closes the first ventilation port 14 and the second ventilation port 15 and has a third ventilation port 17 that communicates with the first ventilation port 14, is fitted into the recess 16 so as to be movable back and forth. ing. This first shutter 18 has an operating lever 1 at its front end that moves the first shutter 18 back and forth.
9 is rotatably supported, and at its rear end there is a second ventilation port 20 that opens and closes a fourth ventilation port 20 that is a rear opening of the wind tunnel 9 in the second storage chamber 4.
The shutter 21 is fixed. In addition, the operation lever 19
The front end has an operation hole 22 into which a finger is inserted from the right side, and a hook-shaped projection 24 that protrudes upward and engages with a hook-shaped projection 23 formed at the upper front side of the recess 16. (4) A protrusion 25 that protrudes at the lower part of the depth side while being
and a horizontally elongated hole 26. A pin 27 fixed to the heat insulating partition wall 2 is fitted into this elongated hole 26, and the operating lever 19 is moved back and forth while being guided by this pin 27.

In the recess 16 below the operating lever 19, a microswitch 28 and one end of a lever 29 for opening and closing the contacts of the microswitch 28 are supported so as to be rotatable while being pressed in one direction. In addition, a hole communicating with the first ventilation port 4 and the second ventilation port 15, respectively, and a hole communicating with the entire movement range of the operation hole 22 are formed, and the recess l6 is formed with a lid 30 screwed onto the heat insulating partition wall 2. covered.

The operation and operation of the cooling/heating switching device constructed as described above will now be described.

4 and 5, the first shutter 18 opens the first ventilation port l4 and the second ventilation port 15, and the second shutter 2
1 is in a state where the fourth ventilation port 20 is closed and the first ventilation port 14
The internal air cooled by the cooler I1 becomes cold air between the first storage chamber 3 and (5) second storage chamber 4, which communicate through the third ventilation port 17 and the second ventilation port 15. The air is circulated by the blower 10, and both chambers are cooled. In this state, from the right side of the heat insulating partition wall 2, insert your finger into the operation hole 22 through the hole in the lid 30, and push down the operation lever 19 while pulling it slightly toward you.
4 from the protrusion 23, and push it in the depth direction to the rearward end. Then, the contact point of the microswitch 28, which had been pressed open by the protrusion 25, is closed by the release of the lever 29, the heater 12 is turned on, and at the same time, the first shutter l8 opens the first ventilation port 14 and 2nd ventilation port 15
is closed, and the second shutter 21 opens the fourth ventilation port 20.

As a result, the cold air that had previously flowed from the first storage chamber 3 to the second storage chamber 4 circulated only within the first storage chamber 3, and the air inside the second storage chamber 4 was heated by the heater 12. Warm air is circulated by the blower 10 and becomes heated.

[Problem to be solved by the invention]

By the way, in such a conventional cooling/heating switching device, an operating lever 19 is installed in the heat insulating partition wall 2 (6), and the finger of the hand is inserted into the operating hole 22 from the side of the heat insulating partition wall 2 to operate the operating lever. This is a structure that performs the operation of 19. Therefore, there are problems in that the operation and confirmation after the operation cannot be easily performed, and the cooling/heating switching device is easily tampered with by inserting a hand into the storage chamber through the product outlet 6. Also case 1
If there are three or more storage compartments within the storage compartment, switching between the two compartments is often performed as described above, and switching between the other compartments is often performed using a switch provided at the front end of the storage compartment. In this case, there is a problem that the cooling/heating switching device differs depending on the storage room, making the switching operation complicated.

This invention allows easy switching operation and confirmation after the operation,
It is an object of the present invention to provide a cooling/heating switching device for a vending machine that can switch cooling/heating in each storage chamber with the same operation.

[Means to solve the problem]

In order to solve the above problems, in the cooling/heating switching device for a vending machine of the present invention, a plurality of storage chambers which are partitioned inside, whose front openings are covered with doors, and where products are refrigerated or heated are insulated. Separated by a partition wall (7) One of the two adjoining storage chambers is equipped with a heating device and the other with a cooler, and a ventilation hole formed in the heat-insulating partition wall and communicating between the two storage chambers is opened and closed by a shutter. In the cooling/heating switching device for a vending machine that switches between cooling and heating in the storage chamber, the front end is in contact with the back surface of the door, and the middle part is connected to the heat insulating partition wall and rotates in a plane parallel to the wall surface of the heat insulating partition wall. A handle is freely supported, and a lever is provided at the rear end of the handle, one end of which is connected to the shutter, and the other end of which is rotatably supported relative to each other.

[Effect]

This invention includes a handle whose front end abuts the back surface of the door and whose middle portion is supported rotatably on a heat insulating partition wall that partitions two adjacent storage rooms in a plane parallel to the wall surface of the heat insulating partition wall; Since a lever is provided with one end rotatably supported at the rear end and the other end at the shutter, the lever can be turned from the front side of the storage chamber by rotating the handle from the front end in the same way as a swivel. The shutter can be opened and closed through the handle, and by pushing the front end against the back of the door, the handle can be moved to the rotation end position (8) when the door is in the closed position.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a partial cross-sectional view of the right side of the main part of a heat insulating partition wall showing the structure of a cooling/heating switching device for a vending machine according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the main part of FIG. 1. In both cases, the left side of the figure is the front side. Components common or identical to those in FIGS. 3 to 5 are designated by the same reference numerals.

In FIGS. 1 and 2, 1 is a case with an open front, and inside this case 1, there are two adjacent compartments, a first storage chamber 3 and a first storage chamber with an open front, partitioned left and right by a heat insulating partition wall 31. The first storage chamber 3, the second storage chamber 4, and the front opening of the case 1 are covered with a door 7 having heat insulating properties. A product outlet 6 is formed through which the product is opened and the product is taken out. In addition, an air blower mlO is arranged at a position to close the front openings of wind tunnels 8.9 that are open on both the front and rear sides, which are provided at the back of the lower part of the first storage chamber 3 and the second storage chamber 4, respectively. A cooler 11 is installed on the first storage chamber 3 side in a position that blocks the rear opening.
A heater l2 is provided on the second storage chamber side, and the rear opening of the wind tunnel 9 forms a fourth ventilation port 20.

On the other hand, a first ventilation port 1 is placed at a constant interval in the front and back in the lower part of the heat insulating partition wall 31 and communicates between the first storage chamber 3 and the second storage chamber 4.
4 and a second ventilation opening 15, and a recess 32 that continues to the peripheral portion including the first ventilation opening 14 and the second ventilation opening 15 and the front end of the heat insulating partition wall 31 is formed.

A third ventilation port 17 communicating with the first ventilation port 14 is formed in the recess 32, and the first ventilation port 14 and the second ventilation port 15 are formed in the recess 32.
A first chassis 18 that opens and closes is fitted so as to be movable back and forth. The first shutter 18 rotatably supports the rear end of a rod-shaped lever 33 at the middle of its front end in the vertical direction, and the rear end of the first shutter 18 has a rear opening of the wind tunnel 9 in the second storage chamber 4. A second shutter 21 that opens and closes the fourth ventilation port 20 is fixed. Further, the front end of the lever 33 is formed with a protrusion 34 on the outer periphery of the front side so that the front end protruding forward from the front end surface of the heat insulating partition wall 31 comes into contact with the back surface of the closed door 7 at both the upper and lower rotation end positions (10). , a disk-shaped handle 3 supported on a heat insulating partition wall 31 so as to be rotatable about the center with a horizontal axis in the left and right directions.
It is rotatably supported on the peripheral edge on the depth side of 5. Further, in the recess 32 below the lever 33, a microswitch 28 and one end of a lever 29 for opening and closing the contacts of the microswitch 28 are supported so as to be rotatable by pressing in one direction. Further, the recess 32 is covered except for the rotation range of the protrusion 34 at the front end with a lid 30 formed with holes communicating with the first ventilation port 14 and the second ventilation port 15 and screwed onto the heat insulating partition wall 31. There is.

In the above structure, the operation and operation of the cooling/heating switching device of the present invention will be explained next.

1 and 2, the first shutter 18 opens the first ventilation port 14 and the second ventilation port 15, and the second shutter 2
1 with the fourth ventilation port 20 closed, and the first storage chamber 3
and the second storage chamber 4 are the first ventilation opening 14 and the third ventilation opening 1.
7 and the second ventilation port 15, the cool air inside the compartment is cooled by the cooler 11 and circulated by the blower 10, so that both the compartments are in a cooling state (11). In this state, the protrusion 3 is at the upper limit rotation position.
4 is moved downward to the lower limit position and the handle 35 is rotated, the first shutter 18 is moved via the lever 33 to the rearward end. At the same time, the contact point of the microswitch 28, which until now had been opened due to the lever 29 being pressed by the lever 33, is now open.
The lever 29 is opened and closed, the heater 12 is powered on, the first shutter 18 closes the first ventilation port 14 and the second ventilation port 15, and the second shutter 2l opens the fourth ventilation port 20. As a result, the cold air that had previously flowed from the first storage chamber 3 to the second storage chamber 4, which communicated with each other, is recirculated only within the first storage chamber 3, and the warm air inside is heated by the heater 12 and is then sent to the blower. At step 10, the heat is circulated within the second storage chamber 4, and the second storage chamber is heated. Even if the cooling/heating switching operation is incomplete and the moving position of the protrusion 34 is not accurately moved to the upper and lower limit positions, when the door 7 is closed, the back side of the door 7 will push the front end of the protrusion 34. The protruding portion 34 is moved to the upper and lower limit positions, and the first shutter 18 and the second shutter 2l are in the correct opening/closing position. In addition, the cooling/heating switching operation is similar to that of a switch (12), and the switching status after operation can be easily checked from the front of the storage room.

〔Effect of the invention〕

This invention includes a handle whose front end abuts the back surface of the door and whose middle portion is supported rotatably on a heat insulating partition wall that partitions two adjacent storage rooms in a plane parallel to the wall surface of the heat insulating partition wall; Since a lever is provided with one end rotatably supported at the rear end and the other end at the shutter, the lever can be operated from the front side of the storage chamber by rotating the handle from the front end in the same way as a switch. As a result, the shutter can be opened and closed by pressing the front end on the back of the door to move the handle to its rotation end position when the door is in the closed position.As a result, the shutter opening and closing operation can be standardized and simplified with the same operation as a switch. It is easy to check the open/close status after operation, and the shutter is in the correct open/close position when the door is closed. This has the effect that it is possible to prevent the cooling/heating switching device from being tampered with through the cooling/heating switching device.

(13)

[Brief explanation of drawings]

Fig. 1 is a partial sectional view of the right side of the main part of a heat insulating partition wall showing the structure of a cooling/heating switching device for a vending machine according to one embodiment of the present invention, and Fig. 2 is a cross-sectional view of the main part of Fig. 1. , Figure 3 is a front view of a conventional vending machine with the door open, showing the internal structure including the cooling/heating switching device, and Figure 4 is a partial sectional view of the right side of the main part of the lower part of the heat-insulating partition wall in Figure 3. , FIG. 5 is a cross-sectional view of the main part of the lower part of the heat insulating partition wall of FIG. 3. 1...Case, 2.31...Insulating partition wall, 3...
1st storage room, 4... 2nd storage room, 5... Product storage shelf, 6... Product outlet, 7... Door, 8, 9... Wind tunnel, 10... Air blower, 11... Cooler, l2... Heater, 13... Condenser, 14... First ventilation port, 15
...Second ventilation port, 16.32...Recess, l7...
3rd ventilation port, 18...1st shutter 19...operation lever, 20...4th ventilation port, 21...2nd shutter, 22...operation hole, 23.24.25... -Protrusion, 26...Elongated hole, 27...Pin, 28...Micro switch, 29.33...Lever 30...Lid, 34...Protrusion, 35...Handle. . 4) “I #mu10wao

Claims (1)

[Claims] 1) Among the multiple storage rooms that are divided internally and whose front openings are covered with doors and where products are kept refrigerated or heated, two adjoining storage rooms are separated by a heat insulating partition wall and a heating device is installed in one of the storage rooms and a cooling device is installed in the other. A cooling/heating switching device for a vending machine that switches between cooling and heating in the storage chamber by opening and closing a vent formed in the heat insulating partition wall and communicating the two storage chambers with a shutter, wherein the front end is A handle that is in contact with the back surface of the door and whose middle part is supported rotatably in a plane parallel to the wall surface of the heat insulating partition wall; A cooling/heating switching device for a vending machine, comprising: a rotatably supported lever;