JPH08291966A - Cold and warm storage box - Google Patents

Abstract

PURPOSE: To prevent the heat transfer between a cold storage unit and a warm storage unit by improving the cleanability. CONSTITUTION: A tray containing wagon for supporting trays in multiple stages is drawably provided in the wagon containing chamber of a dumbwaiter. Shelf plates 19 extended from the right and left side plates of the frame of the wagon to the central side are provided in a cantilever state. A support member 21 oppositely coupled with a support plate 21 via a spacer 24 is provided at the free end of the plate 19, and covered with a plastic outer shell 22 to constitute a unit partition wall 20. The walls 20 are vertically connected to constitute the heat insulation wall at the center of the wagon. A lower partition member for preventing the flow of the air between the right and left sides is provided in contact with the outer bottom of the wagon at the bottom of the wagon containing chamber. An upper partition member for preventing the flow of the air in contact with the upper surface of the wagon is provided at the ceiling of the wagon containing chamber.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerating and refrigerating apparatus in which the inside of a greenhouse is divided into a refrigerating section and a warming section.

[0002]

2. Description of the Related Art In recent years, a cold storage device of this type, for example, a food service vehicle used in a hospital or the like, has recently been put into practice.
As shown in the official gazette, etc., foods served in a cold state and foods served in a warm state are placed on a tray in which the trays are placed side by side, and the trays are housed in a multi-tiered manner in the vertical direction. The one that is kept at an appropriate temperature is provided. This is configured by providing a multi-tiered shelf member on which trays are placed so as to be hung between the left and right inner walls in a rectangular heat insulating box body, and providing a unit partition plate in the middle portion of each shelf member. ing. The unit partition plates are arranged in the up-down direction with a slight gap between them, and as a whole, divide the inside of the heat insulating box body into the left and right, that is, a refrigerating section and a warming section.

In this case, the tray is supported by the shelf member such that an intermediate portion (a boundary portion between cold food and warm food) is inserted into a gap between the unit partition plates. At this time, the gap portion is closed by a packing provided on each unit partition plate, so that the partition plate and the packing thermally shut off the refrigerating unit and the warming unit. In addition, cold air from a cooling device is supplied to the refrigerating unit, and the warming unit is heated by a heater or the like.

[0004]

By the way, it is important to keep the inside of the refrigerating and refrigerating device (serving car) of this type clean. However, in the above-mentioned conventional refrigerating and refrigerating apparatus, there is a problem that it is difficult to clean the inside because a large number of shelving members and partition plates are present in the heat insulating box.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a refrigerating / refrigerating apparatus capable of improving cleanability, and another object is to provide a refrigerating unit and a warmer together. An object of the present invention is to provide a cold storage device which can prevent heat transfer to and from the storage unit as much as possible.

[0006]

In order to achieve the above object, a refrigerating and refrigerating apparatus according to a first aspect of the present invention is provided with a box-shaped greenhouse main body constituted by a heat insulating wall and a wheel at the bottom thereof. A tray accommodating wagon that is accommodated so that it can be pulled out from the inside of the chamber body and the inside is divided into a refrigerating section and a warming section on the left and right, and a cooling device that is provided in the greenhouse storage body and cools the refrigerating section of the tray accommodating wagon. And a heating device that is provided in the main body of the greenhouse and that heats the warming portion of the tray accommodating wagon.

According to the second aspect of the present invention, in the refrigerating and refrigerating apparatus, the tray accommodating wagon is cantilevered from the left and right frame-shaped side plate portions so as to respectively support the tray toward the central portion side. It is characterized in that a heat insulating wall for separating the refrigerating section and the warming section is attached so as to extend and straddle the free ends of both of the shelf members.

[0008]

According to the refrigerating and refrigerating apparatus of claim 1, a tray accommodating wagon whose interior is divided into a refrigerating section and a refrigerating section by a heat insulating wall is accommodated in the main body of the greenhouse so that it can be pulled out. It is cooled by the cooling device, and the heating section is heated by the heating device. Therefore, when cleaning the inside of the greenhouse holder, the tray housing wagon can be pulled out from the inside of the greenhouse holder to wash the inner wall of the greenhouse holder.

By the way, when the tray is accommodated in the wagon having the shelving members arranged in multiple stages as described above, heat transfer between the refrigerating section and the warming section becomes a problem. This type of tray storage wagon is generally made of metal such as stainless steel because of its strength requirement. However, since metal has relatively good thermal conductivity, it is possible to transfer heat to the storage compartment by heat transfer from the shelf members. This is because the heat transfer between the cold storage and the refrigeration unit becomes large. In this respect,
According to the cooling and heating apparatus of claim 2, the shelf member of the tray-housing wagon is cantilevered from the left and right side plate portions toward the central portion, and is insulated so as to straddle the free ends of the shelf members. Since the wall is attached, even if there is a situation in which the shelf member must be made of metal or the like having good heat conductivity due to the requirement of strength, etc., it can be provided in a state of being thermally separated by the heat insulating wall portion. .

[0010]

As described above, according to the cooling and heating apparatus of the invention of claim 1, since the tray storing wagon is provided so that it can be pulled out from the inside of the greenhouse, the wagon can be pulled out from the greenhouse and easily cleaned. Will be able to. Moreover, in the invention of claim 2, while the tray is accommodated in the wagon, it is possible to further prevent heat transfer between the refrigerating section and the warming section via the shelf member as much as possible, so that the heat retention and the cold insulation are also performed. The excellent effect of being excellent in the effect of is obtained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a garage will be described below with reference to FIGS. First, FIG. 1 shows a serving car 1 as a cold storage device according to the present embodiment.
Shows the overall configuration of. As shown in FIG. 2, a plurality of casters 3 for movement are provided at the bottom of a greenhouse greenhouse main body 2 which has a rectangular box shape as a whole. A handle 4 is provided on a side surface of the greenhouse main body 2.

The greenhouse main body 2 is composed of a heat-insulating box body whose front and rear surfaces are open. As shown in FIG. 2, an intermediate wall 5 provided in the center thereof accommodates two left and right wagons inside. A chamber 6 is formed. A door 7 is provided on the front surface and the back surface of each wagon storage chamber 6 so as to be openable and closable. This door 7 is provided with a glass 9 in a door frame 8, and an inner surface portion of the door frame 8 has a magnet gasket 10 (FIG. 11, FIG. 11) for sealing a gap between the door frame 8 and the peripheral portion thereof.
12) are provided. The left and right wagon accommodating chambers 6 are provided symmetrically, and the right wagon accommodating chamber 6 will be described below as a representative. Further, although not shown in detail, the intermediate wall 5 is supplied with cool air to the left inner wall side of the right wagon housing chamber 6, and
A cooling device that supplies cold air to the right inner wall side of the left wagon housing chamber 6 is provided. Further, a planar heater 11 (see FIG. 2) as a heating device is provided on the right inner wall of the right wagon housing 6 (and the left inner wall of the left wagon housing 6).

In the wagon accommodating chamber 6, a tray accommodating wagon 1 for accommodating, for example, plastic trays 12 on which foods are placed in two rows in front and rear and in a multi-tiered manner up and down.
3 is accommodated so that it can be pulled out. In this case, the tray 12 is in the shape of a horizontally long rectangle, and the food to be served in a cold state is placed on the left side of the flat plate boundary portion 12a located in the central portion, and the tray 12 is warm on the right side of the boundary portion 12a. Food that is served in a state is placed on it. This tray storage wagon 13 is shown in FIGS.
As shown in FIG. 1, a frame 1 having a rectangular box shape with both front and rear surfaces opened and having a size that fits closely into the wagon housing chamber 6
4, a shelf member for receiving a tray 12, which will be described later, and a heat insulating wall that divides the tray accommodating wagon interior 13 into right and left (refrigerating section and warming section) are configured. Wheels 15 for moving the tray storage wagon 13 in the front-rear direction are provided at the four corners on the bottom of the frame body 14. Details of the tray storage wagon 13 will be described later.

The tray accommodating wagon 13 is accommodated from the front side in the wagon accommodating chamber 6 and accommodates a large number of trays 12 in that state. The following measures have been taken in housing the. That is, first, as shown in FIG. 3, rails 38 made of, for example, a stainless steel plate for guiding the wheels 15 of the tray storage wagon 13 in the front-rear direction are provided on both left and right sides of the bottom of the wagon storage chamber 6. There is. As shown in FIGS. 4 and 5, the rail 38 has two rising piece portions 38b extending in the front-rear direction on the upper surface of the bottom plate portion 38a at intervals slightly larger than the width of the wheel 15. . At the rear end of the rail 38, a wheel stopper 39 for restricting the position on the rear side of the wheel 15 is provided in a standing state. In addition, at the front end of the rail 38, the rising piece 3 located outside of the two rising pieces 38b.
8b is provided with a guide portion 38c extending forward so as to gently expand outward.

Thus, when the tray accommodating wagon 13 is accommodated in the wagon accommodating chamber 6, the wheels 15 are guided by the rails 38 and are accommodated in the wagon accommodating chamber 6 at the proper position. There is. At this time, the position of the rear side of the wheel 15 is regulated by the wheel stopper 39, so that the tray accommodating wagon 13 is not pushed too much. Also, the wheel 1
When inserting 5 into the rail 38 from the front side, the wheel 15 smoothly rises by the guide portion 38c and the rising piece portions 38b, 3
It will be guided between 8b. As shown in FIG. 3, a lower partitioning member 40 made of, for example, a stainless steel plate, is provided at the central portion of the bottom of the wagon housing chamber 6 so as to extend substantially in the front-rear direction. This lower partition member 40 is
As shown in FIG. 6 and FIG. 7, it has an elongated rectangular box shape whose lower surface is open. A slit 40a extending in the front-rear direction is formed in the central portion of the upper surface portion of the lower partition member 40 so as to maximize thermal separation between the left and right sides. Further, the lower partition member 40 integrally has an extending piece portion 40b extending in the left-right direction from the lower left and right sides, and the extending piece portion 40b is screwed to the bottom of the wagon storage chamber 6 or the like. It is designed to be attached by.

Further, as shown in FIG. 3, a sliding plate made of, for example, a plastic, slides on the upper surface of the lower partition member 40 in contact with the outer bottom portion of the tray accommodating wagon 13 (the lower partition wall 17 described later). 41 is provided in. The sliding plate 41 has a U-shaped cross section so as to be tightly covered with the lower partition member 40, and is formed to extend in the front-rear direction so as to cover the entire upper surface of the lower partition member 40. As a result, when the tray storage wagon 13 is stored in the wagon storage chamber 6, the outer bottom portion (lower end partition wall 17) of the tray storage wagon 13 slides on the slide plate 41, and together with this, the lower partition member. Four
Since the upper end of 0 (the upper surface of the sliding plate 41) is in sliding contact with the outer bottom portion, the space below the tray accommodating wagon 13 is divided into a refrigerating unit 35 side and a heating unit 36 side, which will be described later. is there.

Further, a locking plate 33 provided at the bottom of the tray accommodating wagon 13 is provided on the upper surface of the front end of the right extending piece 40b of the left and right extending pieces 40b of the lower partition member 40. A stopper 42 that abuts is provided.
As shown in FIGS. 11 and 12, the locking plate 33 has a rectangular plate shape and a screw insertion hole is formed in the center thereof. As shown in FIG. 11, the stopper 42 is made of an L-shaped metal plate, and the tray accommodating wagon 13 is accommodated in the regular position of the wagon accommodating chamber 6 (the position where the wheel 15 comes into contact with the wheel stopper 39). The locking plate 33 is provided at a position where the locking plate 33 comes into contact with the rising portion of the locking plate 33 from the front side.

The stopper 42 is provided with a screw hole at a position where the stopper 42 overlaps the screw insertion hole when the locking plate 33 comes into contact with the stopper 42. The locking plate 33 is fixed to the stopper 42 by screwing a screw member 43 as a fixing member into the screw hole from the front side through the screw insertion hole. As a result, the tray storage wagon 13 is fixed to the regular position in the wagon storage chamber 6. On the other hand, as shown in FIG.
The pair of upper partition members 44 made of, for example, stainless steel plates are provided on the ceiling of the tray accommodating wagon 13 so as to sandwich a protruding portion of an upper end partition wall 16 described later provided on the ceiling of the tray accommodating wagon 13 from the left and right. These upper partition members 44 extend over substantially the entire front-rear direction and are provided so as to substantially contact the upper end partition wall 16 with a slight gap. As a result, the space above the tray accommodating wagon 13 is also divided into the refrigerating section 35 side and the warming section 36 side.

The structure of the tray accommodating wagon 13 will be described in detail below. As shown in FIGS. 1 to 3,
The frame body 14 has a rectangular frame-shaped left and right side plate portions 14a, 14b having an intermediate partition extending in the vertical direction in the middle, and the left and right side plate portions 14a, 14b at the upper end portion.
A top plate portion 14c (see FIG. 8) provided so as to be connected at three positions of a rear portion and an intermediate portion, and left and right side plate portions 14a, 14
It is composed of a bottom plate portion 14d provided so as to connect b at the lower end portion at three positions of the front, rear and intermediate portions.
The frame body 14 is formed by joining flat square pipes made of metal such as stainless steel. Further, the top plate portion 14
In the central portion of c, the upper end partition wall 16 extends in the entire front-rear direction.
(See FIG. 8) is provided, and a lower end partition wall 17 (see FIG. 3) is provided at the center of the bottom plate portion 14d so as to extend in the front-rear direction.

In this frame 14, in the case of this embodiment,
As a shelf member, a shelf plate 19 made of a flat metal square pipe extending in the left-right direction is horizontally arranged at a predetermined interval in the middle portion of the frame body 14 vertically. This shelf board 19
As shown in FIGS. 9 and 10, the elongated member is not provided over the entire left and right sides of the frame body 14, but is provided in such a form that it is divided at the central portion of the frame body 14. That is, the left end of the shelf plate 19 located on the left side of the frame body 14 is supported by the left side plate part 14a in a so-called cantilever state and extends toward the central portion side, and is located on the right side of the frame body 14. The shelf plate 19 has a right end portion supported by the right side plate portion 14b in a so-called cantilever state, extends to the central portion side, and abuts with a gap in the central portion.

Then, a unit partition wall 20 is fixed to each of the shelves 19 and extends in the front-rear direction in the frame body 14 at a substantially central portion of the frame body 14. The unit partition walls 20 are supported by the shelf boards 19. Has been done. This unit partition wall 20 is shown in FIG. 9 and FIG.
As shown in FIG. 5, the support member 21 is attached so as to cover the outer shell body 22 having a poor heat conductivity, for example, a plastic box-shaped outer shell body 22. The support member 21 includes metal plate support plates 23, 23 attached to the free ends of the left and right shelf plates 19 so as to face each other by welding or the like. The outer shell body 22 is attached by screwing it into the support member 21 so that it is fitted into the support member 21 from the front and back.

Two stainless steel shelf bars 18 are arranged along the shelf board 19 in front of and behind the shelf board 19. The shelf boards 19 and the two shelf bars 18 are straddled. The trays 12 can be placed in front and rear two rows. That is, the trays 12 accommodated in the front row of the tray accommodating wagon 13 are placed across the front half of the shelf bar 18 and the shelf plate 19 on the front side, and the trays 12 accommodated in the rear row are the deepest. The shelf bar 18 and the second half of the shelf plate 19 are placed so as to straddle them. Unlike the shelf plate 19, the shelf bar 18 is provided so as to pass through the unit partition wall 20 in the left and right direction and extend across the left and right sides of the frame body 14. The surface of the shelf bar 18 is coated with a resin in order to suppress heat conduction as much as possible. There is.

On the other hand, at the lower end portion of each unit partition wall 20 (outer shell body 22), a movable sealing member 25 is provided so as to be able to move up and down, and it projects downward by its own weight and is located immediately below it. It is adapted to come into contact with the upper end surface portion of the wall 20. The movable member 25 is provided at the boundary portion 1 of the tray 12.
2a is inserted between the unit partition walls 20,
The tray 12 is pushed up a little, and a gap for accommodating the tray 12 is formed. Also, the top plate portion 14c
As shown in FIG. 8, the upper partition wall 16 provided in the central portion of each of the mounting plates 2 is attached to the divided portion of the central portion of the top plate portion 14c.
6 and 26 are welded, and the support plate 2 is attached to the mounting plates 26 and 26.
7, 27 are connected to each other by screwing via a connecting plate 28 so as to cover the portions except the upper ends of the supporting plates 27, 27, and a plastic box-shaped outer shell 29 is attached. It is configured. At this time, the upper ends of the support plates 27, 27 project upward from the upper end of the top plate portion 14c by a slight amount, and are located between the upper partition members 44, 44. A movable member 30 similar to the movable member 25 of the unit partition wall 20 is provided at the lower end of the outer shell body 29.

Further, as shown in FIG. 3, the lower end partition wall 17 provided in the central portion of the bottom plate portion 14d is, for example, formed into a narrow box shape whose lower surface is opened from plastic, and the central portion of the bottom plate portion 14d. Attaching plates 31, 31 to the divided parts of
Are welded together and attached to these mounting plates 31, 31 together with a sliding member 32 made of a metal plate which is convex downward by screwing. The movable member 25 of the unit partition wall 20 located at the lowermost stage is brought into contact with the upper end surface portion of the lower end partition wall 17. The lower end of the lower partition wall 17 is slidably contacted with the lower partition member 40 (sliding plate 41).
The locking plate 33 is attached by screwing.

In this way, the upper partition wall 16, each unit partition wall 20, and the lower partition wall 17 vertically connect the central portion of the tray accommodating wagon 13 (frame body 14) and extend vertically from these. 34, the heat insulating wall 34 divides the inside of the tray housing wagon 13 into a left refrigerating section 35 and a right refrigerating section 36. The tray accommodating wagon 13 is configured in such a manner that left and right parts are joined with the heat insulating wall 34 sandwiched therebetween. still,
Adhesive plates 37 made of, for example, an iron plate for receiving the magnet gasket 10 of the door 7 are provided on both front and rear end surfaces of the upper partition wall 16 and each unit partition wall 20.
A slit 37a extending in the vertical direction is formed in the central portion of the suction plate 37, and here also the thermal separation between the left and right is achieved as much as possible.

In the vehicle 1 constructed as described above, the heat insulating wall 3 in which the inside extends vertically in the wagon accommodating chamber 6.
Since the tray storing wagon 13 divided into the refrigerating section 35 and the warming section 36 by 4 is accommodated so that it can be pulled out,
For example, at the time of cleaning, by pulling out the tray storage wagon 13 from the wagon storage chamber 6, the shelf members 18 and 19 and the heat insulating wall 34 do not exist in the wagon storage chamber 6, so that the inner wall and the like can be easily cleaned. On the other hand, since the tray storage wagon 13 that has been pulled out can be easily reached to the inside, the inside thereof can be easily cleaned. Then, the frame body 14 constituting the tray housing wagon 13
The shelf plate 19 and the like are made of a metal (stainless steel or the like) having relatively good heat conductivity because of the requirement of strength, but the top plate portion 14c, the bottom plate portion 14d, and the shelf plate 19 are heat-insulated in the center. Since the wall 34 is divided, and the support plates 23, 23 are connected to each other via the spacer 24, the metal parts between the refrigerating section 35 side and the warming section 36 side are separated. The transfer of heat is effectively prevented, and sufficient thermal division is achieved.

The shelf bar 18 has a shape penetrating the heat insulating wall 34 at the center. However, since the heat insulating wall 34 is mainly supported by the shelf plate 19 in a cantilever state, and the shelf bar 18 has a function of supporting the tray 12 in cooperation with the shelf plate 19, so that the shelf plate is not supported. It can be made sufficiently thinner than that of No. 19, and since the surface is particularly coated with a resin in this embodiment, the amount of heat transfer through this is extremely small and there is no risk of impairing heat retention performance. Further, in this embodiment, since the wagon housing chamber 6 is provided with the lower partition member 40 and the upper partition member 44, even if there is a gap between the inner wall of the wagon housing chamber 6 and the tray housing wagon 13, The gap is divided into right and left parts, and the flow of air between the refrigerating section 35 and the warming section 36 is blocked. As a result, the refrigerating section 35 and the warming section 36 are separated from each other. The thermal cutoff is more effective.

As described above, according to this embodiment, since the tray storage wagon 13 is provided so as to be pulled out from the wagon storage chamber 6, the cleaning property can be improved as compared with the conventional one. Then, the tray storage wagon 13 is attached to the heat insulation wall 34.
Since the part is thermally divided right and left, heat transfer between the refrigerating section 35 and the warming section 36 can be sufficiently prevented. Moreover, the lower partitioning member 40, the upper partitioning member 44, and the like prevent the circulation of air between the refrigerating unit 35 and the warming unit 36, so that it is possible to obtain a practical effect of extremely excellent heat retaining and cooling effects. It is possible. Further, particularly in this embodiment, the tray housing wagon 13 can be smoothly housed and pulled out by the rail 38 and the sliding plate 41, and the tray housing wagon 1 can be made by the wheel stopper 39, the locking plate 33, the stopper 42, and the like.
It is also possible to obtain the effect that the positioning and fixing of 3 can be performed reliably.

FIG. 13 shows another embodiment of the present invention. This embodiment differs from the first embodiment in that the mounting plate 3 for the lower partition wall 17 of the tray accommodating wagon 13 is different.
Among them, the locking plates 33 are symmetrically provided at two positions on the front end of the right one and the rear end of the left one. According to this, even when the tray housing wagon 13 is housed with its front and rear surfaces reversed, one of the locking plates 33 can be brought into contact with and fixed to the stopper 42, and the tray housing wagon 13 can be mounted on the wagon 13. It is possible to avoid worrying about the direction in which it is stored in the storage chamber 6, and it becomes easier for the user to use.

Besides, the present invention is not limited to the embodiments described by the above description and the drawings, and various modifications can be carried out without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 is a perspective view of a catering car showing an embodiment of the present invention.

[Fig. 2] Partial side view of the same serving car

FIG. 3 is a vertical sectional view of a lower portion of the tray storage wagon.

[Fig. 4] Plan view of the rail

[Figure 5] Side view of the rail

FIG. 6 is a plan view of a lower partition member.

FIG. 7 is a side view of the lower partition member.

FIG. 8 is a partially enlarged sectional view showing an upper partition wall and an upper partition member portion.

FIG. 9 is a partially enlarged sectional view showing a unit partition wall portion.

FIG. 10 is a perspective view showing a unit partition wall portion.

FIG. 11 is a vertical sectional side view showing a stopper portion.

FIG. 12 is a plan view of the same.

FIG. 13 is a plan view showing another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Delivery car (cooling / heating device) 2 ... Greenhouse keeping body 6 ... Wagon accommodation room 11 ... Sheet heater (heating device) 12 ... Tray 13 ... Tray accommodation wagon 14 ... Frame body 14a, 1
4b ... Side plate part 18 ... Shelf bar 19 ... Shelf plate (shelf member) 2
0 ... Unit partition wall 21 ... Support member 22 ... Outer shell 34 ... Insulation wall 35 ...
Refrigerator 36 ...

Front page continuation (72) Inventor Hiroaki Jinno 3-16, Sakaemachi South Building, Toyoake City, Aichi Prefecture Hoshizaki Electric Co., Ltd.

Claims (2)

[Claims] 1. A greenhouse holding body having a box-shaped heat insulating wall and a wheel at the bottom thereof are housed so that they can be pulled out from the greenhouse holding body, and the insides thereof are stored in a refrigerating section and a warming section to the left and right. A tray accommodating wagon that is divided into two parts, a cooling device that is provided in the greenhouse greenhouse and cools the refrigerating part of the tray accommodating wagon, and a heating device that heats the heating part of the tray accommodating wagon that is provided in the greenhouse conserving body. A refrigerating storage device equipped with a device. 2. The tray accommodating wagon is configured such that shelf members for supporting the tray are cantilevered from the left and right frame-shaped side plate portions toward the central portion side, respectively, and the shelf members of both of them are extended. The refrigerating machine according to claim 1, wherein a heat insulating wall for partitioning the refrigerating section and the warming section is attached so as to straddle a free end of the refrigerating section.