JPH11208282A - Thermal insulating wing vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent leakage of cold air caused by generation of clearance between a fan and a wing due to vibration during running or the like. SOLUTION: In this thermal wing vehicle, a fan 12 is arranged in a standing condition rotatably in vertical directions at a side edge of a floor, and wings 16 are provided at both of right and left sides of a supporting beam which is arranged in a tensioned state between a front wall and a center of a top portion of a rear fan frame. An air pouch 28 is installed at an inner bottom of the fan 16 or an inner top of the fan. In addition, a shielding curtain 30 which covers joints when the fan 16 is closed is mounted on the air pouch 28, thereby leakage of cold air is prevented. Further, a spring member 33 which accommodates the air pouch 28 when it is retracted is provided, thereby interference between the air pouch and the shielding curtain is prevented when the fan is opened or closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wing vehicle having a heat insulating structure, such as a frozen wing truck and a trailer.

[0002]

2. Description of the Related Art A wing wheel whose blades open and close up and down is widely used because the opening work is large at a time, so that the loading operation is easy. Due to the structure, the average density inside the warehouse is -18 like a closed box van truck or trailer.
It is becoming difficult to set to ゜ C. (At present, a refrigerator with a large capacity is used to stir the inside of the refrigerator to manage it.
前後 C has been achieved)

As shown in FIG. 6, a seal member is interposed between the upper surface of the fan and the lower end surface of the blade so as to prevent the inside cool air from escaping to the outside. Although the seal member is interposed between the outer surface and the inner surface of the blade, there are the following problems.

[0004]

The biggest problem with the current insulated wing vehicle is that the blades flutter due to vibrations during running, etc., and a gap is created at the joint between the fan and the blade. It is thought that cold air leaks due to ingress and egress.

[0005] It is conceivable that the above-mentioned fluttering of the blades and the load during traveling can be suppressed by a belt for preventing collapse of the load or the like, but the operation after loading is difficult and practically impossible.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is to provide a fan on a side edge of a floor so as to be rotatable up and down. Provided on both left and right sides of the support beam stretched in the upper and lower sides inside the vane or the inside of the fan, the blade of the L-shaped cross section rotatably up and down,
Provided is an insulated wing wheel characterized by providing an air bag that expands and contracts by air pressure, and further, when closing the blade, covers a joint between the upper inner side of the fan and the lower side inside the blade. By attaching a shielding curtain to the air bag, it is possible to completely prevent the leakage of cold air, and by installing a spring member for storing the air bag in the lower inside of the blade or the upper inside of the fan when the air bag is contracted, The air bag and the shielding curtain do not interfere with each other when the blades are opened and closed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment in which the present invention is applied to a section taken along the line AA in FIG. 2, and FIG. FIG. 3 shows a view taken in the direction of arrows BB in FIG. 1, FIG. 4 shows an air piping diagram of an embodiment of the present invention, and FIG. 5 shows a use state of the embodiment of the present invention. FIG. 6 shows the structure of a conventional insulated wing wheel corresponding to FIG.

In the wing wheel shown in FIG. 2, a fan 12 is provided on a side edge of a floor 10 so as to be rotatable up and down, and a front wall and a rear door frame 1 are provided.
On both left and right sides of a support beam stretched between the central portions of the tops of the four, blades 16 having an L-shaped cross section are provided so as to be rotatable up and down, and are filled with a heat insulating material.

At the lower end of the blade 16 of the conventional insulated wing wheel shown in FIG. 6, an outer plate portion 18 and a hollow portion 20 having a rectangular cross section are integrally formed by extruded aluminum. An outer seal member 22 is interposed between the upper seal 12 and the upper surface, and an inner seal member 24 is interposed at the lower end of the blade 18.
Further, a seal member 26 is interposed at a lower portion inside the outer plate portion 18.

In the embodiment of the present invention shown in FIGS. 1, 3, 4 and 5, an air bag 28 which expands and contracts by pneumatic pressure at the lower portion inside the blade 16, and a shielding car is provided on the air bag 28.
The air bag 28 is mounted on the air bag 28 from the air pipe 32 to the connection pipes 34, 34. . , And air is supplied through the clamps 36, 36. . And is fixed by bolts and nuts 38.

As shown in FIG. 4, air is sent from an air tank (or blower) 40 through a valve 42 to an air pipe 32 for sending air to the air bag 28.
The valve 42 is connected to the control box 44 by an electric wiring 46.
The air to be pumped is controlled by the electric control through the controller.

[0012] As shown in FIG.
When the air bag 28 is separated from the fan 12, the air in the air bag 28 is evacuated. Therefore, as shown in FIG. 5A, the air bag 28 and the shielding curtain 30 are contracted by the spring member 33.
Is wound and stored inside the blade 16,
When the blade 16 is closed as shown in FIG. 5B without interfering with the upper portion of the air bag, air is sent to the air bag 28 to expand the spring member 33, and the air bag 28 is expanded and the shielding bag is expanded. When the air bag 28 is completely inflated and the air bag 28 is completely inflated, the joint between the upper part inside the fan 12 and the lower part inside the blade 16 is completely covered with the shielding curtain 30 as shown in FIG. Will be

The present invention is not limited to the above-described embodiment. For example, the air bag 28 may be mounted inside the fan 12, and the air bag 2 may be directly connected without passing through the air pipe 32.
8, and various design changes are possible without departing from the spirit thereof.

[0014]

As described above, according to the present invention, an air bag that expands and contracts by air pressure is provided at the lower portion inside the blades of the insulated wing wheel or at the upper portion inside the fan, and when the blades are closed, Attaching a shielding curtain covering the joint between the upper inside of the fan and the lower inside of the blade to the air bag completely prevents the leakage of cold air, protects the cargo with this air bag, and when the air bag is contracted. By installing a spring member for accommodating the air bag inside the lower part of the blade or inside the upper part of the fan, the air bag and the shielding curtain do not interfere when the blade is opened and closed.

[Brief description of the drawings]

FIG. 1 shows an embodiment in which the present invention is applied to an AA arrow portion in FIG.

FIG. 2 shows a rear perspective view of a wing track with one blade open.

FIG. 3 is a view as viewed in the direction of arrows BB in FIG. 1;

FIG. 4 shows an air piping diagram of an embodiment of the present invention.

FIG. 5 shows a use state of the embodiment of the present invention.

FIG. 6 shows a structure of a conventional insulated wing wheel corresponding to FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Floor part 12 Fan 14 Rear door frame 16 Blade 18 Outer plate part 20 Hollow part 22 Outer seal material 24 Inner seal material 26 Seal material 28 Air bag 30 Shielding curtain 32 Piping pipe 33 Spring member 34 Connection pipe 36 Clamp 38 Bolt, nut 40 Air tank 42 Valve 44 Control box 46 Electric wiring

Claims (3)

[Claims] 1. A fan is vertically erected on a side edge of a floor so as to be freely rotatable up and down, and is rotatable up and down on both left and right sides of a support beam stretched between a front wall and a center of the top of a rear door frame. Is provided with a blade having an L-shaped cross section, and a lower portion inside the blade or an upper portion inside the fan,
An insulated wing vehicle characterized by having an air bag that expands and contracts by air pressure. 2. The air bag according to claim 1, wherein when the blade is closed, a shielding curtain covering a joint between the upper inner side and the lower inner side of the blade is attached to the air bag. Insulated wing car. 3. The heat-insulated wing vehicle according to claim 1, further comprising a spring member for accommodating the air bag at a lower portion inside the blade or an upper portion inside the fan when the air bag is contracted.