JP3684323B2 - Chariot - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a distribution vehicle having a refrigerator compartment.
[0002]
[Prior art]
As an example of a hot and cold distribution car used in a hospital or the like, one described in JP-A-8-33524 is known. This is made up of a heat insulation box with wheels on the bottom, which is divided into front and rear by an intermediate wall, each of which is further divided by a heat insulation wall, so that two warming chambers at the center and two refrigerations at both ends A room is formed, and two sets of adjacent warm storage rooms and cold storage rooms are provided as a pair. On the other hand, a tray on which hot food and cold food are placed separately is provided, and by storing this tray across the heat insulation room and the cold storage room while penetrating the heat insulating wall, the hot food is kept warm, and the cold food is Each can be stored in a cold state.
[0003]
Among these, the cooling structure of the refrigerator compartment is provided with a duct having a large number of ventilation openings on one side of the refrigerator compartment, and equipped with a cooler and a cooling fan in the duct, and the air in the cabinet is vented to the lower side of the duct. Then, the cooling air is sucked into the cooler side, and a circulation flow is generated such that the cold air generated by passing through the cooler is blown out from the vent on the upper side of the duct to the refrigerating room, thereby cooling the refrigerating room.
On the other hand, in such a distribution vehicle, the defrosting operation is appropriately performed in order to sufficiently exhibit the cooling capacity of the cooler, and as a means for draining the defrost water from the cooler or the like at that time, After dripping defrost water on the bottom of the duct, it is stored in the tank attached to the outer bottom of the main body through the drainage channel formed there, and the tank is removed and the water is discarded, or the drain cock provided in the tank Was opened and discarded directly.
[0004]
[Problems to be solved by the invention]
However, in the conventional drainage structure, since the tank is provided on the outer bottom surface of the main body, for example, when the tank overflows or the drain cock has poor water stoppage, the water directly falls on the travel path. In particular, such a wheelbarrow is often used in hospitals as described above and travels mainly in the corridor. Therefore, in order to protect pedestrians, it is desirable to avoid water leakage on the running surface. There was a request.
The present invention has been completed based on the above circumstances, and an object thereof is to prevent the defrost water from leaking to the outside as much as possible.
[0005]
[Means for Solving the Problems]
As means for achieving the above object, according to the invention of claim 1, a refrigeration room is provided in a main body comprising a heat insulating box, and trays on which food is loaded are accommodated in the refrigeration room so that they can be put in and out. While a front and back area is provided, a single duct having a large number of vents on the front is provided on one side of the refrigerator compartment over almost the entire area in the front and back direction . The cool air generated by the inside air drawn from the upper side of the refrigerating chamber passing through the cooler is blown into the duct from above and blown out from the vent into the refrigerating chamber. together has been way, the one that on the lower surface of the cooler is provided with a drain pan for receiving the defrosted water, are installed tank bottom position in the duct, a drain hose connected to the drain outlet of the drain pan Said suspended through the duct faces the said tank, or One prior Symbol duct is, is partitioned to correspond to each area of the front and back by two partition plates spaced from each other, the drain hose is said both It is characterized in that it is piped between the partition plates and the upper ends of both partition plates are bent so as to approach each other .
[0006]
[Action and effect of the invention]
<Invention of Claim 1>
When defrosting water is dripped from a cooler or the like by performing a defrosting operation, it is received by a drain pan and then stored in a tank installed at a lower position in the duct through a drainage hose arranged in the duct. .
Since the tank is provided in the storage, even if water leaks or overflows from the tank, the outside of the refrigerator compartment, that is, the traveling path, can be avoided as much as possible simply by spilling to the bottom of the storage. Moreover, since both the tank and the drain hose are housed in the duct, the storage space of the refrigerator compartment is not reduced.
Further, since the drainage hose is configured to pass between the partition plates, the drainage hose does not block the vent and obstructs the blowing of cool air, and the cooling function is sufficiently exerted.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a hot and cold distribution vehicle will be described with reference to FIGS.
As shown in FIG. 1, the heating / cooling distribution vehicle of this embodiment includes a storage chamber body 10 (hereinafter simply referred to as a main body) having a rectangular box shape as a whole, and more specifically, an outer shell body made of a stainless steel plate. It is configured as a heat-insulating box with both front and back surfaces filled with a heat insulating material such as urethane foam. A machine room 11 is provided on the upper surface of the main body 10, and wheels 12 are provided on the bottom surface of the main body 10 so as to be movable in the front-rear direction, which is the left-right direction in FIG. 1.
[0008]
The inside of the main body 10 is divided into two front and rear chambers 14 by an intermediate wall 14 that also serves as a duct for warm air circulation, and in the two front and rear chambers, a position slightly away from the intermediate wall 14 than the central portion in the length direction. In addition, a heat insulating partition wall 15 to be described later is provided. Thus, two warm storage chambers 16 are formed inside the partition wall 15, and two cold storage chambers 17 each having a narrower opening than the warm storage chamber 16 are formed outside the partition wall 15. Here, two sets of adjacent storage rooms 16 and refrigeration rooms 17 are formed in the front-rear direction, and further divided into front and back, and a total of four sets of storage rooms 16 and refrigeration rooms 17 are configured. Yes. Opening / closing doors 18 are provided at the front and rear entrances of each warming room 16 and cold storage room 17.
[0009]
The above-described partition wall 15 is provided with a support column 20 as shown in FIG. 2 at the center in the front and back direction in the main body 10 over the entire height, and on both sides of the front and back, as shown in FIG. It is formed by stacking a plurality of unit partition walls 22.
As shown in FIG. 3, the support column 20 has a structure in which an inner frame 24 made of a synthetic resin is sandwiched between a pair of front and rear mounting frames 25 that form a channel shape, and from the front and back side edges of both mounting frames 25. The mounting piece 26 projects from a plurality of stages. At the lower ends of both mounting frames 25, mounting plates 27 bent on both the front and back sides are formed, and the mounting plates 27 are fixed to the interior bottom plate by screws.
[0010]
On the other hand, the mounting member 29 of the uppermost unit partition wall 22A is disposed on the ceiling surface at the position where the partition wall 15 is disposed over almost all dimensions in the front and back direction. The attachment member 29 is formed in a long and narrow box shape with an open lower surface, and is fixed by screwing the ceiling surface to the interior top plate. At the upper ends of both the mounting frames 25 described above, mounting plates 30 with screw holes 31 are formed along the front and back directions, and each mounting plate 30 is inserted inside the front and rear side plates of the mounting member 29. The screw inserted into the long hole 32 is screwed into the screw hole 31 and tightened.
[0011]
The unit partition wall 22 is made of synthetic resin, and the parts other than the uppermost layer are formed in a hollow shape having a vertically long cross section with the upper end side sharpened in a mountain shape, and the rear end side of each of the unit partition walls 22 is the mounting frame 25 of the support column 20. Are fixed by being inserted into the mounting piece 26 and supported in a cantilevered manner. A movable member 34 made of a synthetic resin is mounted on the lower end portion side of the unit partition wall 22 so as to be movable up and down. It is elastically pressed against the upper surface or base 21.
[0012]
The uppermost unit partition wall 22A has a shape obtained by cutting off the upper end side of the unit partition wall 22 from the second to the bottom from the top, and similarly, a movable member 34 is mounted thereon. A screw insertion hole 37 is formed at the upper end of the front and rear side plates of the unit partition wall 22A. The insertion hole 37 is formed to have a larger diameter than usual compared to the shaft diameter of the screw. On the other hand, screw holes 38 are cut in the side plates before and after the mounting member 29 described above.
The uppermost unit partition wall 22A is fixed by fitting the front and rear side plates to the outside of the front and rear side plates of the mounting member 29, and screwing the screw passed through the insertion hole 37 into the screw hole 38 and tightening. At this time, since the screw insertion hole 37 is formed to have a large diameter, the mounting position of the unit partition wall 22A can be adjusted in the vertical direction in addition to the front and back directions. Thereby, for example, even when there is an error in the formation of the main body 10, the interval between the uppermost unit partition wall 22A and the lower unit partition wall 22 can be set to a predetermined value, in other words, the uppermost unit partition wall. The movable member 34 of the wall 22A can be pressed against the upper surface of the unit partition wall 22 thereunder with a predetermined contact pressure.
A cover 39 is attached to each opening of the protruding end of each unit partition wall 22.
[0013]
A heating chamber (not shown) in which a heating body and a fan are accommodated is provided in the front-rear central portion of the upper surface of the main body 10, and the warm air generated by the heating body serves as an intermediate wall 14 that also serves as a duct. Is circulated and supplied to the warming chambers 16 on both sides thereof.
On the other hand, the cooling structure of the refrigerator compartment 17 is as follows. As shown in FIGS. 4 and 5, a cooler chamber 40 is formed on the main body 10 corresponding to the upper side of the left and right refrigeration chambers 17, and on the side wall opposite to the partition wall 15 of each refrigeration chamber 17. Is provided with a duct 41 for circulating cold air. The duct 41 is formed in a vertical groove shape, and is attached in a state where it is depressed toward almost the entire region of the side wall. On the surface of the duct 41, a vent group 42 is formed in the vertical direction divided into seven regions shown in the figure.
[0014]
In the duct 41, the lower end position of the center portion in the width direction as viewed from the front of FIG. A chamber 43 is formed.
In addition, a partition plate 45 that divides the inside of the duct 41 into two regions (front and back regions in FIG. 5) is provided inside the duct 41. Two partition plates 45 are provided, and are spaced from each other from the upper end portion in the duct 41 to the upper surface of the tank storage chamber 43. The upper ends of the partition plates 45 are bent so as to approach each other. Yes.
[0015]
In the cooler chamber 40 described above, a cooler 47 and a cooling fan 48 are provided outside the cooler 47. The cooler 47 is circulated and connected to a refrigeration apparatus (not shown) installed in the machine room 11 by a refrigerant pipe, thereby forming a known refrigeration cycle. A suction port 50 opened on the inlet side of the cooler 47 in the cooler chamber 40 is formed on the ceiling surface of the refrigerator compartment 17, while an outlet 51 is formed on the ceiling surface of the duct 41.
Therefore, when the refrigeration cycle and the cooling fan 48 are driven, the cool air generated in the vicinity of the cooler 47 is blown into the duct 41 from the blower outlet 51 by the cooling fan 48, and is ventilated while descending the duct 41. The cold air blown out to the refrigerator compartment 17 through the mouth group 42 rises in the refrigerator compartment 17 and generates a circulating flow in which it is led from the suction port 50 to the cooler 47, thereby cooling the refrigerator compartment 17. It is like that.
[0016]
As shown in FIG. 6, a tray receiver 53 formed by bending a metal pipe is attached to the surface of the duct 41 in a horizontal posture protruding to the refrigerator compartment 17 side over seven stages. The attachment position of each tray receiver 53 is a position corresponding to the lower edge of the formation position of each vent hole group 42 described above. Accordingly, the third tray receiver 53 from the bottom is located immediately above the upper surface of the tank housing chamber 43. Further, the lower two-stage tray receiver 53A is divided into two parts, the front surface side and the back surface side, because of the tank accommodation chamber 43 being formed.
On the other hand, the same number of tray receivers 53 are attached to the intermediate wall 14 constituting the side wall of the warm storage chamber 16 at the same height.
[0017]
As shown in FIG. 1, the tray 55 is formed in a horizontally long rectangular shape made of plastic or the like, and a boundary portion 56 is provided at a position slightly closer to one side than the central portion of the horizontal width so as to sandwich the boundary portion 56. A food provided in a warm state on the wider side and a food provided in a cold state on the narrower side are respectively placed. The tray 55 is inserted while the boundary portion 56 moves the movable member 34 between the unit partition walls 22 and 22A, and the lower surfaces of both ends are received by the tray receivers 53 on both sides. Thereby, the hot food put on one tray 55 is stored in the hot storage room 16 and the cold food is stored in the cold storage room 17, respectively, and stored hot or cold.
[0018]
Now, on the refrigerator compartment 17 side, the frost adhering to the cooler 47 etc. is naturally melted when the power source is disconnected. Therefore, as shown in FIG. A drain pan 58 for receiving water is provided. The tank storage chamber 43 stores a tank 60 that stores defrosted water from the drain pan 58.
As shown in FIG. 7, the tank 60 is formed in a box shape having an open upper surface that is accommodated in the tank accommodating chamber 43 almost tightly. The size of the tank 60 is not too large considering the storage capacity, but as the size of the tank 60 increases, the opening area of the lower vent group 42 is reduced accordingly. Is selected to be large enough to hold
A handle 61 is formed from the upper edge of one surface of the tank 60. The handle 61 protrudes in the horizontal direction and is bent downward at the protruding end. Therefore, the main body of the tank 60 is accommodated in the tank accommodating chamber 43 and the handle 61 protrudes from the surface of the duct 41 toward the refrigerator compartment 17. However, the position of the handle 61 is directly below the third tray receiver 53 from the bottom.
[0019]
On the side surface on the outer side (right side in FIG. 4) of the drain pan 58 described above, a drainage port 63 protrudes at a substantially central portion in the front and back direction, and its tip is bent downward and faces the blowout port 51. On the other hand, a drain pipe 64 penetrating vertically is provided on the ceiling surface of the tank housing chamber 43.
An upper end of a drain hose 65 is connected to the drain port 63 of the drain pan 58, and the lower end of the drain hose 65 is passed through a narrow inlet 45 </ b> A of two partition plates 45 disposed in the duct 41. The drain pipe 64 is connected. The drainage hose 65 passed through both the partition plates 45 is fixed to the inner surface of one partition plate 45 with a fastener 66.
[0020]
Then, the effect | action of this embodiment is demonstrated. As shown in FIG. 5, the tray 55 is housed in a set of front and back warm storage chambers 16 and cold storage chambers 17. When the refrigeration cycle is started, as described above, the cold air generated in the vicinity of the cooler 47 is blown into the duct 41 from above, and blown out from the vent group 42 into the refrigerating chamber 17 to be on the tray 55. The cold food will be stored in a cooled state. Here, since the partition plate 45 is disposed in the duct 41, the cold air is blown into the front and back areas in the duct 41 and is blown into the front and back areas of the refrigerator compartment 17 from the respective vent groups 42. It functions so as to be blown out, and the inside of the refrigerator compartment 17 can be efficiently cooled in total.
[0021]
When the defrosting is performed by stopping the operation and the defrosting water is dripped from the cooler 47 or the like, the defrosting water is received by the drain pan 58 and then passes through the drain hose 65 disposed in the duct 41 and the ceiling surface of the tank housing chamber 43. Is dropped from the drain pipe 64 into the tank 60 and stored.
When all the defrost water has flowed down to the tank 60 side, the door 18 of the refrigerator compartment 17 is opened, the handle 61 is placed, the tank 60 is slid out on the bottom of the inside of the cabinet, and is disposed at an appropriate disposal location. What is necessary is just to drain. The emptied tank 60 is accommodated in the tank accommodating chamber 43 as before.
[0022]
For convenience when the tank 60 is taken in and out, as shown in FIG. 4, the handle 61 of the tank 60 protrudes from the tank storage chamber 43 toward the refrigerator compartment 17, but the height position of the handle 61 is As shown in FIG. 5, since it is set to be directly below the third tray receiver 53 from the bottom, it is separated from the tray 55 supported by the second tray receiver 53 from the bottom to the maximum. Therefore, interference with the tableware 57 and the like placed on the tray 55 is avoided, and the tray 55 is smoothly inserted and removed.
[0023]
As described above, according to the present embodiment, since the tank 60 for storing defrost water is provided in the warehouse, even if water leaks from the tank 60 or overflows, the tank 60 can be refrigerated only by spilling to the bottom surface in the warehouse. Wetting the outside of the chamber 17, that is, the traveling path, is avoided as much as possible. In addition, it is easy to find out that water leaks from the tank 60 before it spills to the outside because the bottom surface of the interior is wet. Moreover, since both the tank 60 and the drain hose 65 are housed in the duct 41, the accommodation space of the refrigerator compartment 17 is not reduced.
[0024]
In addition, since the drainage hose 65 is passed between the two partition plates 45 that divide the inside of the duct 41 into front and back regions, the drainage hose 65 can be cooled without the possibility of blocking the vent group 42 and obstructing the blowing of cool air. Function is fully demonstrated. Moreover, the drainage hose 65 can be assembled well and the drainage hose 65 can be stably fixed to the one partition plate 45 using the fastener 66.
Furthermore, since the drainage hose 65 is passed between the partition plates 45 through the narrow inlet 45A, so to speak, the drainage hose 65 is surrounded by the partition plate 45, so that the cold air blown out from the cooler 47 is directly The contact with the drain hose 65 is avoided, and freezing in the drain hose 65 is prevented.
[0025]
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) Contrary to the above-described embodiment, a duct for circulating cold air is arranged in the central portion of the main body to constitute refrigeration chambers on both front and rear sides thereof, and the storage is performed with a partition wall outside each refrigeration chamber. The present invention can be similarly applied to a warm / cold distribution vehicle having a room configuration.
(2) Further, three or more sets of refrigeration rooms in the warm room may be provided in the front-rear direction.
[Brief description of the drawings]
FIG. 1 is a side view of a hot / cold distribution vehicle according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of a partition wall. FIG. 3 is a cross-sectional view of a support pillar portion of the partition wall. FIG. 5 is a partially cutaway front view of a duct. FIG. 6 is a plan view of a tray receiver. FIG. 7 is a perspective view of a tank.
DESCRIPTION OF SYMBOLS 10 ... Storage body 15 ... Partition wall 16 ... Warm room 17 ... Cold room 40 ... Cooler room 41 ... Duct 42 ... Vent group 43 ... Tank accommodation room 45 ... Partition plate 47 ... Cooler 48 ... Cooling fan 50 ... Suction Mouth 51 ... Outlet 55 ... Tray 58 ... Drain pan 60 ... Tank 63 ... Drain port 64 ... Drain pipe 65 ... Drain hose

Claims (1)

Refrigerating compartment is provided in the body of insulating box, while the front and back regions trays carrying the meals are out can accommodate each is provided in the refrigeration compartment, on one side of the refrigerating chamber, front numerous single duct vent is opened is provided over substantially the entire front and back direction, the cooler on the upper side of the duct is equipped, the air inside drawn from the upper side of the refrigerating compartment the in Cold air generated by passing through the cooler is blown into the duct from above, and blown out from the vent into the refrigerator compartment ,
A drain pan for receiving defrost water is provided on the lower surface of the cooler, while a tank is installed at a lower position in the duct, and a drain hose connected to the drain port of the drain pan is suspended through the duct and Facing the tank,
Do One prior Symbol duct is divided to correspond to each area of the front and back by two partition plates spaced from one another, they are piping the drain hose through the two partition plates, further the both partition plates An arrangement car characterized in that the upper ends of each are bent so as to approach each other .

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