JP3201895B2 - Vacuum cooling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley-type vacuum cooling apparatus for loading objects to be cooled on a trolley and putting the objects into and out of a container.

[0002]

2. Description of the Related Art Conventionally, as a truck type vacuum cooling device,
As shown in FIG. 4, a truck c having wheels b on the lower rear surface is slidably mounted in the front-rear direction on a bottom surface of the hermetic container body a having an open front surface. Door d for closing the door, and the door d
The vacuum cooling device is known. This vacuum cooling device pulls a cart d by pulling a door d, puts an object to be cooled on the cart c, and pushes the door d to pull the cart c. The airtight container main body 1 is housed inside, and the front surface of the airtight container main body a is closed and closed by a door body d.

However, when a large amount of objects to be cooled is placed, the carriage c bends, and as a result, the door d is distorted and does not adhere to the front surface of the hermetic container body a. There is a disadvantage that it is difficult to make.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent the load applied to the bogie from affecting the door, and to completely seal the front surface of the airtight container body with the door.
An object of the present invention is to provide a vacuum cooling device capable of creating a high vacuum state.

[0005]

In order to achieve the above-mentioned object, a vacuum cooling device according to the present invention mounts a truck on a bottom surface of an airtight container body having an open front surface so as to be slidable in the front-rear direction. A front end is provided with a door body for hermetically closing the front surface of the hermetic container body, a lower end of the door body is provided with a wheeled support portion, and a front end of a bogie having a rotating support member on a lower end lower surface is provided with the door body. Or the lower surface of the carriage is placed on the bottom surface of the hermetic container body via a plurality of load supporting members provided at appropriate intervals in the front-rear direction.

[0006]

Since the front end of the bogie is pivotally attached to the door so as to be vertically rotatable, the bending moment applied to the front end of the bogie is absorbed by the pivot portion, thereby preventing the door from being distorted.

Further, when the lower surface of the cart is placed on the bottom surface of the airtight container body via the load supporting member, the load applied to the cart is dispersed and supported, and bending of the cart is suppressed. As a result, the door body Is prevented.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 1, a vacuum cooling device 1 includes a hollow box-shaped airtight container main body 2 having an open front surface, and an airtight container main body 2.
And a door 4 that is attached to the front end of the trolley 3 and that can hermetically close the front surface of the hermetic container body 2.
And a support part 5 with wheels attached to the lower end of the door body 4.

The airtight container main body 2 is provided with an appropriate heat insulating material between an outer wall and an inner wall made of metal or the like, and a flange 7 is formed on a peripheral edge of an opening 6 on a front surface thereof. The bogie 3 does not come out of the hermetic container main body 2 so that the bogie 3 is not attached.
The cart 3 has a planar shape slightly smaller than the bottom surface of the hermetic container main body 2, a connection plate 10 is provided at the front end thereof so as to protrude forward, and a wheel or a roller rotating in the front-rear direction is provided on the lower surface of the back end portion. The rotation supporting member 8 is mounted on the bottom surface of the hermetic container main body 2 so that the carriage 3 is housed inside the hermetic container main body 2 so as to be drawn out through the opening 6. I have.

The door body 4 is made of a material having high heat insulation like the airtight container main body 2 and has almost the same shape as the opening 6 of the airtight container main body 2. A packing (not shown) that is in close contact with the flange 7 is attached, and a first mounting plate 15
Is provided so as to protrude forward, and a pin 11 extending in the width direction is inserted into the second mounting plate 9 which protrudes rearward from the lower portion of the inner surface and the connecting plate 10 of the bogie 3, whereby the front end of the bogie 3 is closed. 4 is pivotally attached to the inner surface of the base 4 so as to be rotatable in a vertical direction.

A pair of left and right wheels 13 is rotatably mounted on the front and rear portions of the lower surface of the horizontal base 12, and the lower end of the door body 4 is bolted to the rear of the upper surface of the horizontal base 12. And the support 1
4, and a support arm 16 is provided to protrude rearward from the upper end of the inner surface of the support post 14.
Is pivotally connected to the first mounting plate 15 of the door body 4 via the pin 17 so that the door body 4 is supported so as not to fall.

The wheels 13 of the wheeled support 5 are mounted on rails 19 provided on a base surface 18 such as a floor along the front-rear direction.
When the column 14 or the door body 4 is pulled and the wheeled support portion 5 is run forward, the bogie 3 is drawn out through the opening 6 of the airtight container body 2. It has become.

When the object to be cooled is stored in the vacuum cooling device 1, the carriage 3 is pulled out as described above, the object to be cooled is loaded on the carriage 3, and the wheeled support portion 5 is run backward. The carriage 3 is housed in the hermetic container main body 2, and the opening 6 of the hermetic container main body 2 is closed by the door body 4. At this time, the bogie 3 bends downward due to the loading weight, but since the front end of the bogie 3 is pivotally attached to the door body 4, no bending moment is generated at the joint portion. The door 4 is not distorted.
Adhere to

FIG. 2 shows a second embodiment of the present invention. The front end of a truck 3a of a vacuum cooling device 1a is rigidly connected to the inner surface of a door body 4a by bolts or the like in the same manner as the conventional one.
A load supporting member 2 made of a rotating body such as a wheel or a roller rotatable back and forth at appropriate intervals in the front-rear direction on the lower surface of the
0 is attached. In this vacuum cooling device 1a, when the object to be cooled is loaded on the carriage 3a, the carriage 3a is bent downward and the door body 4a is distorted when the carriage 3a is pulled out. When the carriage 3a is housed inside, the carriage 3a is placed on the bottom surface of the airtight container main body 2a via the plurality of load supporting members 20, and the loaded load is dispersed and supported. As a result, the bending of the carriage 3a is corrected and the door body is The distortion of 4a is eliminated, and the airtight container main body 2a is closed by the door 4a.

FIG. 3 shows a third embodiment of the present invention, in which a plurality of load supporting members 20a composed of rotating bodies such as wheels or rollers are rotated on the bottom surface of the hermetic container body 2b at appropriate intervals in the front-rear direction. Attached freely, the load supporting member 20a
The cart 3b can be taken in and out by rolling over the car. Also in this vacuum cooling device 1b, when the truck 3b is housed inside the hermetic container main body 2b, the loaded load is dispersed and supported, the bending of the cart 3b is suppressed, and the hermetic container main body 2b is hermetically closed by the door 4b. Is done.

The other structures and usages of the vacuum cooling devices 1a and 1b are substantially the same as those of the vacuum cooling device 1 shown in FIG. 1, and therefore, the same portions are denoted by the same reference numerals and description thereof will be omitted.

In the second and third embodiments, the load supporting member is a wheel or a roller. However, the load supporting member may be a non-rotating supporting leg having a small friction coefficient.

[0018]

According to the vacuum cooling device of the present invention, the front end of the truck is pivotally mounted on the door so as to be vertically rotatable. Therefore, even if the object to be cooled is loaded on the truck and the truck flexes, the pivoting portion is formed. Since the bending moment is absorbed, the door body is not distorted. As a result, the door body is kept in close contact with the opening of the airtight container main body, so that the airtightness is maintained and a high vacuum state is obtained.

Further, when the lower surface of the truck is placed on the bottom surface of the airtight container body via a plurality of load supporting members provided at appropriate intervals in the front-rear direction, the door body is opened by the load when the truck is pulled out. Even if it is distorted, when the trolley is housed inside the airtight container main body, the loading weight is dispersed and supported via the plurality of load supporting members, and therefore, the deflection of the trolley is suppressed, the distortion of the door body is eliminated, and the door is distorted. The body can completely close the opening of the hermetic container body.

[Brief description of the drawings]

FIG. 1 is a side view of a vacuum cooling device showing a first embodiment of the present invention.

FIG. 2 is a side view of a vacuum cooling device showing a second embodiment of the present invention.

FIG. 3 is a side view of a vacuum cooling device showing a third embodiment of the present invention.

FIG. 4 is a side view of a conventional vacuum cooling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cooling device 2, 2a, 2b Airtight container main body 3, 3a, 3b Truck 4, 4a, 4b Door body 5 Support part with wheels 6 Opening 7 Flange 8 Rotation support part 9 Second mounting plate 10 Connection plate 11, 17 Pin 12 Horizontal base 13 Wheel 14 Support post 15 First mounting plate 16 Support arm 18 Base surface 19 Rail 20, 20a Load support member

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F25D 7/00

Claims (5)

(57) [Claims] 1. A truck is slidably attached to a bottom surface of an airtight container main body having an open front surface via a rotation support member provided on a lower surface of a rear end thereof, and is slidably movable in a front-rear direction. In the vacuum cooling device provided with a door body that hermetically closes the front surface of the door, and provided with a wheeled support portion at the lower end of the door body, the front end of the bogie is pivotally attached to the door body vertically. A vacuum cooling device. 2. A dolly is slidably mounted in the front-rear direction on a bottom surface of the hermetic container body having an open front surface, and a door body is provided at a front end of the dolly to hermetically close the front surface of the hermetic container body. In a vacuum cooling device provided with a wheeled support portion at the lower end of a door body, the lower surface of the cart is placed on the bottom surface of the hermetic container body via a plurality of load support members provided at appropriate intervals in the front-rear direction. A vacuum cooling device characterized by being placed. 3. The vacuum cooling device according to claim 2, wherein the load supporting members are mounted on the lower surface of the carriage at appropriate intervals in the front-rear direction. 4. The vacuum cooling device according to claim 2, wherein the load supporting members are mounted on the bottom surface of the airtight container body at appropriate intervals in the front-rear direction. 5. The load supporting member comprises a rotating body.
The vacuum cooling device according to any one of claims 1 to 4.