JPH09159350A - Deviation preventing structure of door for refrigerating container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deviation of a door having a cantilever hinge. SOLUTION: A door for a refrigerating container is structured so that a door 3, opening and closing an opening, is attached to the front surface opening frame 2 of a refrigerating container main body 1 pivotally through hinges 4 at one side rim while the rear surface of the peripheral rim of the door 3 is abutted against the front surface of an opening frame 2 through a gasket 7. Door deviation preventing jigs 10 are provided on the opening frame 2 so as to be opposed to the upper and lower parts of the other side rim of the door 3 through a gasket 7 while the upper and lower surfaces of the other side rims of the door 3 are slid on the door deviation preventing jigs 10 and the sliding surfaces thereof are provided with slanted surfaces 10a, whose sliding surfaces are approached gradually to the door toward the inside of the container main body. According to such a constitution, the door 3 is contacted with and separated from the opening frame 2 while being guided by the guiding surfaces 10a of the deviation preventing jigs 10 whereby the upper and lower surfaces of the other side rims thereof are abutted against the jigs 10 upon closing the door whereby the inclination of the door can be prevented. On the other hand, the lower and upper parts of the other side rims of the door can be supported rigidly at the upper and lower parts of the other side rims of the door whereby the door 3 will never be moved with respect to the container main body 1 even when the container is vibrated during transportation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door slip prevention structure for a refrigerated container.

[0002]

2. Description of the Related Art Refrigerating containers of this type are shown in FIGS.
As shown in FIG. 2, a door 3 for opening and closing the opening is attached to a front opening frame 2 of a container body 1 made of a heat-insulating box so as to be freely rotatable via a hinge 4 at one side edge thereof. The door 3 is locked or unlocked by operating the operating rod 5.

The heat retention (refrigeration) is performed by providing a refrigeration cycle in the container body 1 or a lid cooling material. Also,
As shown in FIG. 1, casters 6 are attached so as to be movable or fixed to an automatic vehicle.

[0004]

In order to improve the closing property of the door 3 in the refrigerating container, as shown in FIGS. 3 and 6 (b).
As shown in FIG. 3, a gasket 7 is fixed to the back surface of the peripheral edge of the door 3, and the door 3 is pressed against the opening frame 2 with the gasket 7 interposed. At this time, the upper and lower edges of the door 3 and the opening frame 2 are, as shown in FIG.
A space a is formed between
There is no.

On the other hand, the door 3 is also required to have a heat insulating property, and its thickness reaches about 10 cm. Generally, the size of this type of container is about 1100 to 1350 mm in length,
Width: 400 to 650 mm, depth: 550 to 850 mm. Further, the larger the opening of the container body 1, the easier it is to put in and take out items, so that the container body 1 is formed to fill the front and the door 3 is necessarily large.

For this reason, the weight of the door 3 becomes considerable, and as shown in FIG. 6 (a), the door 3 is fitted right around the opening frame 2 when the door 3 is initially attached. Along with this, due to vibration during transportation, the hinge 4 is loosely fixed, or the opening of the container body 1 is deformed like a match box, and the door 3 tends to tilt as shown in FIG. 7. If the door 3 is tilted, the pressure contact between the door 3 and the opening frame 2 via the gasket 7 is displaced, causing a trouble in the closed state, or in the case where the opening frame 2 is formed with the protrusion 2a, the door 3 is exposed. There is a case where a so-called "door stop" that hits the tension 2a occurs, and the door 3 cannot be opened and closed smoothly.

As a means for preventing the displacement of the door 3, it is possible to increase the strength of the hinge 4 and the strength of the opening frame 2, but there is a limit to this.

The present invention has an object to prevent the deviation of the door 3 shown in FIG. 7 in a simple and inexpensive manner under the above-mentioned actual conditions.

[0009]

In order to solve the above-mentioned problems, the present invention provides a door structure for a refrigerating container as described above, which is opposed to an upper side or an upper and lower part of the other side edge of the door to prevent door displacement. A tool is provided in the above-mentioned opening frame, and this door displacement prevention jig is
The upper surface or the upper and lower surfaces of the other side edge of the door slides, and the sliding surface is an inclined surface that gradually approaches the door toward the inside.

According to this structure, the door is guided by the sliding surface of the displacement prevention jig to come into contact with and separate from the opening frame, and when the door is closed, the other side edge of the door is pressed against the jig. The tilt shown in FIG. 7 is prevented.

At this time, if the door displacement prevention jig is also provided on the upper side, the upper and lower prevention jigs firmly support the upper and lower portions of the other edge of the door. Therefore, even if the container vibrates during transportation, the door does not move with respect to the container body.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION One embodiment is shown in FIGS. 1 to 5, and the same reference numerals as those used above denote the same items, and therefore their explanations are omitted. That is, in this embodiment, the door shift prevention jig 10 shown in FIG.
As shown in FIG. 2, FIG. 3, and FIG. 5, the door 3 is attached to the opening frame 2 so as to face the upper and lower surfaces of the other side edge of the door 3.

As shown in FIG. 4, the door misalignment prevention jig 10 is wedge-shaped, and screws are passed through the screw holes 11 to open the opening frame 2.
Secure by screwing on. Its fixed position,
The thickness and the degree of inclination (the degree of inclination of the inclined surface 10a) are appropriately set so as not to hinder the opening / closing operation of the door 3. Further, a well-known means such as welding may be adopted instead of screw fixing.

By attaching this jig 10, the door 3
The moving space a (see FIG. 6B) of the opening frame 2 disappears. Therefore, the door 3 is less likely to move with respect to the main body 1 due to the vibration generated during transportation and movement, and the impact load applied to the hinge 4 is reduced as much as possible. In addition, the upper and lower jigs 10
It plays the role of a large rod and corrects the deformation distortion of the container body 1 by the shape and size of the door 3.

The effect of preventing the downward displacement of the door 3 shown in FIG. 7 can be obtained by only the lower jig 10. Therefore, the upper jig 10 may be attached if necessary.
Further, although the embodiment has been described for the case of a single-opening door, it goes without saying that the present invention can also be applied to a double-opening door.

[0016]

Since the present invention is constructed as described above to prevent the door from being displaced, the door can be smoothly opened and closed for a long period of time, and the door can be sufficiently closed. Can be secured.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment.

FIG. 2 is a perspective view of the same embodiment in a door open state.

FIG. 3 is a partially cutaway side view of the same embodiment.

FIG. 4 is an enlarged view of a main part of FIG. 3;

FIG. 5 is a perspective view of a door slip prevention jig.

FIG. 6 is an explanatory diagram of the operation of a conventional example.

FIG. 7 is an operation explanatory view of a conventional example.

[Explanation of symbols]

 1 Container Main Body 2 Front Opening Frame 3 Door 4 Hinge 5 Operating Rod 6 Caster 7 Gasket 10 Door Misalignment Preventing Tool 10a Inclined Surface 11 Screw Hole

Claims (2)

[Claims] 1. A front opening frame 2 of a refrigerating container body 1,
A door 3 for opening and closing the opening is rotatably mounted on one side edge thereof via a hinge 4, and a rear surface of the peripheral edge of the door 3 is pressed against the front surface of the opening frame 2 with a gasket 7 interposed therebetween. The structure is such that it faces the lower part of the other side edge of the door 3, and the door shift prevention jig 10
Is provided in the opening frame 2, and the door displacement prevention jig 10 is such that the lower surface of the other side edge of the door 3 slides, and the sliding surface thereof gradually approaches the door toward the inside. Refrigerated container door slip prevention structure characterized by being 2. The door displacement prevention jig 10 is provided on the opening frame 2 so as to face the upper portion of the other side edge of the door 3, and the door displacement prevention jig 10 is provided on the other side edge of the door 3. The door slip prevention structure for a refrigerating container according to claim 1, wherein the upper surface slides and the sliding surface is an inclined surface 10a that gradually approaches the inside.