JPS6094883A - Hatch cover device - Google Patents

Abstract

PURPOSE:To achieve water-tightness simultaneously with closing operation by providing edge portions inclined downward in closing direction to be engaged water-tightly on a hatch cover while providing inclined engaging portions to be engaged water-tightly with said inclined edge portions upon closing of cover at the cpposite sides of hatch coaming. CONSTITUTION:Edge portions inclined downward in closing direction to be engaged water-tightly are provided at the hatch coaming 8 side of hatch cover 1 which will move along a pair of horizontal rails 5 onto a hatch coaming 8 to be closed. At the corresponding positions of hatch coaming 8, inclined engaging portions to be engaged water-tightly with said inclined edge portions through a packing 7 under closed state of hatch cover 1 are formed at the opposite sides. Consequently, water-tight engaging operation can be performed simultaneously with closing operation of hatch cover 1 resulting in simplification of entire structure.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates primarily to a hatch cover device for opening and closing a hatch opening in a ship.

Generally, in cargo ships and the like, an opening is provided on the deck above the cargo volume, and cargo is unloaded and unloaded through this opening.

In order to protect the cargo from seawater, rainwater, etc., a hatch cover device as shown in Fig. 1 is conventionally provided at the opening, and the periphery of the hatch cover 1 (rolling type hatch cover) of this hatch cover device is A watertight packing structure 2 is provided, and as shown in FIG. 2, this packing structure 2 comes into contact with the packing 7 around the hatch coaming 8 when the hatch cover 1 is closed.

Further, when the hatch cover 1 is closed, the rail pieces 5a of the rails 5 that support the wheels 4 provided on both sides of the hatch cover 1 are lowered by the hydraulic device 3, that is, the hatch cover 1 is lowered.

As shown in FIG. 1, a wire 6 is used to prevent the hatch cover 1 from lifting up when the edge cover 1 is closed.

On the other hand, as a means to open the hatch cover 1, first operate the hydraulic device 3 and push up the hatch cover 1 until it is flush with the rail piece 5I1 and the rail 5 as shown in FIG. As shown, the nozzle cover 1 is pulled open using a winch or the like (not shown).

However, with such a conventional hatch cover device, when opening the hatch cover 1, it is necessary to lift the hatch cover 1 slightly, which requires a complicated and costly hydraulic system. be.

In addition, in order to prevent the haunch cover 1 from lifting up,
There is also the problem that it is necessary to equip a large number of wires 6, and that it takes a lot of effort to wear underwear for the wires 6.

The present invention aims to solve these problems by simplifying the peripheral devices for opening and closing the hatch cover, thereby reducing manufacturing costs.
An object of the present invention is to provide a hatch cover device which can be easily opened and closed.

For this reason, the hatch cover device of the present invention is provided with a hatch cover that moves along a pair of horizontal rails onto a hatch coaming to perform closing, and the hatch cover has a pair of left and right inclined edges for watertight engagement that are sloped downward in the direction of the closing movement. The invention is characterized in that inclined engaging portions are formed on both sides of the hatch coaming, and are capable of watertightly engaging the inclined edges of the hatch cover in the closed state.

Hereinafter, a hatch cover device as an embodiment of the present invention will be explained with reference to the drawings. FIG. 5 is a perspective view thereof, and FIG.
The figure is a Vl-Vl enlarged sectional view of Fig. 5, Fig. 7 is a Vn-vn enlarged sectional view of Fig. 5, Fig. 8 is a side view showing the closed state, and Fig. 9 is a side view showing the open state. Figure 10 is an enlarged sectional view of the main part showing the packing structure and wheels, Fig. 11 is an enlarged sectional view of the main part showing a modification of the packing structure, and Fig. 12 shows the main parts of the hatch cover and hatch coaming. ] d, a perspective view showing the main part, pA 13 is an exploded perspective view of the main part showing the locking mechanism.

As shown in FIGS. 5 and 8, the hatch cover 1 is connected to a pair of horizontal rails 5 via wheels 4 provided on both sides of the hatch cover 1.
It is provided so that it travels along the hatch coaming 8 and enters the closed state.

Also, inside both measuring parts of the hatch cover 1, there is a 7.10'
.

As shown in FIG. 12, left and right phantom water-tight engagement inclined edges 1a are provided upwardly and are inclined downwardly in the direction of closing movement of the hatch cover 1.
The packing 7 is installed.

Then, when the hatch cover 1 is in the closed state, an inclined engagement portion 8 is engaged with the inclined edge portion 1a for water-tight engagement through the gasket 7 in a water-tight manner.
7.10.12, projecting downwardly on both sides of the hatch combing 8 so as to face the watertight engagement inclined edges 1a.

Note that, as shown in FIG. 11, the seal 7 may be attached to the inclined engagement portion 8a side.

On the other hand, at the front and rear ends of the hatch cover 1 and the hatch coaming 8, as shown in FIGS. 6 and 12, water-tight engagement edges 1a'' are provided to protrude inward from the ends of the hatch cover 1, and An engaging portion 8a' is provided outwardly protruding from the end of the hatch coaming 8, and when the water comb engaging edge 1a' and the engaging portion 8a' are in a closed state,
They are brought into contact with each other from the horizontal direction via a bunkin 7'.

In this way, the packing structure 2 is constituted by the watertight engagement inclined edge 1a, the watertight engagement edge 1a', the packing 7.7', the inclined engagement part 8a, and the engagement part 8a'.

Also, one hatch combing 8 is closed from the left and right by two patch covers 1 as shown in Fig. 8.9, and in the closed state, these two hatch covers 1 are locked as shown in Fig. 13. They are connected and fixed by the structure 13.

This opening/link mechanism 13 consists of stoppers 9 that are provided on each of the two hatch covers 1 at the distal end sides thereof so as to overlap with each other.
, a retaining pin 10 passing through these two retainers 9, and a screw 11 for removing the retaining pin 1o.

With the above-described configuration, when the hatch cover 1 is in the closed state, the two hatch covers 1 that have traveled from the left and right on the hatch coaming 8 are fixedly connected by the locking mechanism as shown in FIG. The sealing structure 2 on the peripheral edge maintains the watertightness of the hatch cover 1.

In addition, when the hatch cover 1 is closed, the number 6+7.10
As shown in the figure, the inclined engagement portion 8a on the peripheral edge of the hatch footing 8 presses down the watertight engagement inclined edge 1a on the peripheral edge of the hatch cover 1 from above via the gasket 7. It is possible to prevent the hatch cover 1 from lifting up.

On the other hand, when opening the hatch cover 1, the lock mechanism 1
3 and move the punch cover 1 using a winch or the like (not shown). At this time, the inclined edge 1 for watertight engagement
Since the engaging portion 8a and the inclined engaging portion 8a are inclined downward in the closing movement direction of the hatch cover 1, they are easily separated, and the hatch cover 1 is opened.

As detailed above, according to the hatch cover device of the present invention, the hatch cover is provided with a hatch cover that moves along a pair of horizontal rails onto a haunch coaming to perform closing, and the hatch cover has a pair of left and right hatch covers that are inclined downwardly in the closing movement direction. a sloped edge for watertight engagement, and a sloped engagement portion that can be watertightly engaged with the sloped edge when the hatch cover is closed;
With a simple structure formed on both sides of the hatch combing, sufficient water retention is maintained when the hatch cover is closed, and the lifting of the hatch cover is prevented. - Since the peripheral equipment for opening and closing is simplified, manufacturing costs are significantly reduced, and
It has the advantage of being easy to open and close.

[Brief explanation of the drawing]

Figures 1 to 4 show a conventional hatch cover device. Figure 1 is a perspective view thereof, Figure ttS2 is an enlarged sectional view of Figure vS1, and Figures 3 and 4 are for explaining the opening means. FIGS. 5 to 13 show a hatch cover device as an embodiment of the present invention, FIG. 5 is a perspective view thereof, FIG. Fig. 7 is an enlarged vn-vn sectional view of Fig. 5, Fig. 8 is a side view showing the closed state, Fig. 9 is a side view of the rJIJ in its fully released state, and Fig. 10 shows its packing structure and wheels. FIG. 11 is an enlarged sectional view of the main part showing a modified example of the packing structure; FIG. 12 is an enlarged perspective view of the main part of the hatch cover and the hatch coaming;
FIG. 3 is an exploded perspective view of essential parts showing the locking mechanism. 1. Hatch cover, 1a. Slanted edge for watertight engagement, I
a'... Edge for watertight engagement, 2... Packing structure, 4...
・IILf&, 5...Rail, 7.7'...Packing, 8...Hatch coaming, 8a...Slope engagement part, 8a
'...Engagement part, 9...Stopper, 10...Stopper, 1
1. Screw for separate IBI, 13. Several locks. Sub-Agent Patent Attorney Yoshihiko Iinuma Figure 8 Figure 9 Figure 10 Figure 12 Figure 13 Figure 0

Claims (1)

[Claims] A hatch cover is provided that moves onto the haunch coaming along a pair of horizontal rails for closing, and the hatch cover has a pair of left and right inclined edges for watertight engagement that slope downward in the direction of the closing movement, and the hatch cover is in a closed state. A hatch cover device, characterized in that inclined engaging portions capable of watertightly engaging with the inclined edges thereof are formed on both sides of the haunch combing.