JPS5831751Y2 - Ship pontoon type hatch lid - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a pontoon type cargo hatch for ships.

Traditionally, ship pontoon-type hatch covers have a ladder-shaped plate structure with a bulged center part to provide strength to the central beam, but the ladder-shaped plate surface causes cargo to collapse. ,
It cannot be loaded.

At this time, two types of conventional pontoon-type cargo hatch covers are available: one with a horizontal plate surface on the upper surface and one with a trapezoidal plate surface, and the different one can be used depending on the type and shape of the cargo. However, there are problems such as being troublesome and having trouble finding a place to stock them.

The purpose of this invention is to allow a single hatch lid to serve two conventional roles.

An example of the embodiment of the present invention will be described below based on the drawings.

FIG. 1 shows a pontoon-type hatch lid 1 according to the present invention, in which A is a top perspective view and B is a bottom perspective view,
As is clear from the drawing, one side of the upper and lower screen surfaces has a ladder-shaped plate structure with a bulge in the center, and the other side has a horizontal plate structure to which a steel plate '2 is attached.

3a and 3b (3C and 3d are opposing faces) are reversing devices provided on the side wall frame, and the reversing devices form a concave portion S in the side wall frame and remove the shackle from within the concave portion S. It is structured so that people can come in and out as they like.

In this case, the reversing device is made up of a U-shaped pin 4 welded in the vertical direction within the concave portion S, and a piece 5 is provided to slide in the length direction of the pin.

(See FIG. 2) The structure of the reversing device is not limited to the illustrated example, but any other structure can be adopted.

Next, how to use it will be explained.

Figure 3 shows the situation when storing grains, wood chips 6, etc., with the pail-shaped plate surface A facing upward and the horizontal plate opening facing downward. A plurality of sheets are placed one after another so as to cover the top surface of the sheet.

In this way, when the horizontal board is placed so that the opening is on the bottom surface, the entire internal volume of the hold 7 can be used 100% effectively.

Next, Figures 4 and 5 show an example of use when transporting containers, etc., in which the reversing devices 3a and 3b (either side is fine) on one side of the side wall frame are used. Pull out the shackle 5 and attach it to the crane wire 8.
By attaching and pulling it up, it is lifted as shown in FIG. 4, and by turning the opposite wall frame downward and loosening the wire 8, it is turned over so that the horizontal plate surface opening is upward.

Since the steel plate 2 is stuck on the inverted horizontal plate surface opening, the container 9 can also be placed on the top surface of the inverted horizontal plate according to the present invention, as shown in FIG.

Although the illustrated example shows containers 9 loaded in both holds, the cargo hold can be replaced with different types of grains, etc., making it possible to load both inside and outside the hold. It is something that can be done.

[Brief explanation of drawings]

Figure 1 shows the pontoon-type hatch lid of the present invention, where A is a top perspective view, B is a bottom perspective view, Figure 2 is an enlarged detailed view of a reversing device, and Figures 3 and 4. and FIG. 5 are explanatory diagrams showing examples of usage conditions. 1... Pontoon type hatch lid, 2... Steel plate, 3a, 3b, 3 C, 3d... Reversing device, 5... Shackle, 7.・・・・・・Hold,
9...Container.

Claims (2)

[Scope of utility model registration request] (1) One side of the upper and lower screen surfaces has a ladder-shaped plate structure with a bulging center part, and the other side has a horizontal plate structure with a steel plate attached, and a recessed part is provided in the side wall frame, A pontoon type hatch lid for a ship, characterized in that a reversing device is installed in the concave portion, which is housed in the recessed portion when not in use, and is pulled out and wired when the respective plate surfaces are reversed upside down. (2) Request for registration of a utility model, characterized in that the reversing device has a structure in which a U-shaped pin is welded in the vertical direction within the concave part, and a shackle is attached so as to slide in the length direction of the pin. A pontoon-type hatch cover for ships as described in item 1.