JPS582776Y2 - Container with a seal structure on the container door - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sealing structure for a container door.

Generally, a container has an opening on one end surface for loading and unloading cargo, and the opening is usually provided with a double door.

Containers also need to be completely watertight to prevent water from entering even if they are exposed to water or exposed to water during transportation with cargo stored inside.

However, it is difficult to achieve a complete seal between the container opening frame and the door, especially since the corners of the opening frame are welded or cut out, so it is difficult to create a perfect seal between the container opening frame and the door. There was a problem that the performance inevitably decreased.

The present invention addresses the above-mentioned problems and provides a structure that ensures sealing between the opening and the door of the container, particularly at the corners, and will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of the container, with reference numeral 1 showing the container, 2 an opening frame of the container, and 3 and 4 showing left and right doors attached to the opening frame 2 so as to be able to open and close in a double-fold manner.

A gasket 5 made of an elastic material such as rubber or synthetic resin is attached to the outer peripheral edge of the doors 3 and 4 as shown in FIG.

The gasket 5 includes a substantially planar mounting base 5a that is fixed to the peripheral edge 3a (and 4a) of the door 3 (and 4) by gluing or riveting, and is formed at the outer end of the mounting base 5a.
) and the outer surface 2b of the opening frame, the outer lips 5b and 5a are in pressure contact with the outer surface 3b (and 4b) of the opening frame, respectively, and the door 3 (and 4) of the opening frame 2 is formed on the inner side of the mounting base 5a.
It consists of an inner lip part 5d that comes into elastic contact with the surface 2a facing the peripheral edge 3a (and 4a), and this gasket 5 is fixed to the peripheral edges 3a and 4a of the doors 3 and 4 over the entire circumference (the outer knob part 5b is also adhered to the outer surface of the door). By doing so, when the doors 3 and 4 are closed, the inner lip portion 5d slides in elastic contact with the surface 2a of the opening frame 2, and the outer lip portion 5C contacts the outer surface 2b of the opening frame 2. The gap between the doors 3, 4 and the opening frame 2 is sealed over the entire circumference by the inner and outer lip portions 5d and 5C.

It is natural that the gasket 5 is formed into a substantially U-shape so as to fit around the entire periphery of each of the doors 3 and 4, but in the present invention, the angle θ of the corner portion of the gasket 5 is adjusted as shown in FIG. The corners of the doors 3 and 4 are formed at obtuse angles larger than 90 degrees, and when attached to the doors 3 and 4, the corners are forcibly set to 90 degrees and fixed.

In this way, the gasket 5 with the corner portion formed at an obtuse angle is attached to the door 3.
, 4 is forcibly fixed at 90 degrees according to the corner part, the outer lip part 5C that is outside of the corner part has its tip in the natural state (dotted line) only in the peripheral part of the corner part. (shown) is forced to deform more inward.

Therefore, when the door is closed, the pressing force of the outer lip portion 5C against the outer surface of the opening frame 2 at the corner portion is much greater than that at other straight portions, and the sealing function of the corner portion, which was previously considered to be the weakest point, is enhanced. and can reliably maintain its aqueous properties.

As described above, according to the present invention, the angle of the corner part is simply formed into an obtuse angle of 90° or more without changing the cross-sectional shape of the gasket itself, so the man-hours for manufacturing the gasket are extremely simple as in the past. However, when the seal is fixed to the door periphery, the pressure of the outer lip that presses against the outer surface of the opening frame is much stronger near the corners than in other parts, and there are welded parts and the straight parts It is possible to ensure the sealing function of the corners where it is difficult to perform wall sealing, and it can bring about an extremely large effect on large marine containers, etc., which are particularly likely to be covered with water.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a front view of the container door, Fig. 2 is a sectional view showing the relationship between the door periphery in Fig. 1 and the container opening frame, and Fig. 3 is a FIG. 1 is a perspective view of the gasket in section A, and FIG. 4 is a cross-sectional explanatory view of the gasket shown in FIG. 3 attached to the door. 1...Container, 2...Opening frame, 2
b...Outer surface of the opening frame, 3, 4...Door,
3a, 4a...periphery of the door, 3b, 4b...
・・Outer surface of the door, 5・・Putskin, 5a・・・・
...Mounting base, 5b, 5C...Outer lip part,
5d...Inner lip part.

Claims (1)

[Scope of utility model registration request] In a container in which a door for opening and closing the opening is rotatably attached to a frame of an opening for loading and unloading cargo, the mounting base is bonded and fixed to the periphery of the iron door, and the outer lip is pressed against the outer surface of the container opening frame. The angle of the corner that fits the door corner that forms 90° is the angle of the door corner, that is, 90°.
A container having a sealing structure for a container door, characterized in that the mounting base of the packing integrally formed at a larger angle from an elastic material is bonded and fixed to the periphery of the door.