JPH1044977A - Stem part seal mounting structure for side wall type air cushion ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate seal replacing work, to save replacement seal material, and to carry out replacement on the sea by requiring only replacement of a small lightweight replacement seal when a seal is replaced for seal function maintenance. SOLUTION: In this stem seal mounting structure for a side wall type air cushion ship, a main body seal 2 is fixed to a hull 1 is provided with a notch part 5, which is formed by previously notching the lower end part which may be brought into contact with the sea surface and abraded, and an opening part 6 in the upper part. A replacement seal 7 is inserted from the opening part 6 in the main body seal 2 so as to close the notch part 5 in the lower end part of the main body seal 2, and the replacement seal 7 can be pulled out from the opening part 6 for replacement with a new one 7 when it is abraded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bow seal mounting structure for an air cushion boat.

[0002]

2. Description of the Related Art FIGS. 6 to 9 show an example of a conventional mounting structure of a sealing device (US Pat. No. 4,702,332).
Is shown. In the figure, a hull 01 of an air cushion boat having an air cushion chamber between left and right hull side walls 02 includes:
A tubular guide rail 09 for fixing the upper edge 06 of the bow seal device 05 is provided. On the other hand, at the upper edge portion 06 of the bow seal device 05 made of cloth reinforced rubber, a coil-shaped spring 014 is used as a core material, and a sealing material is wound around the coil-shaped core material 014 to form a columnar portion 012. I have. With such a structure, the column-shaped portion 012 at the upper edge of the bow seal device 05 can be connected to the horizontal rail slot 0 of the guide rail 09 provided on the hull 01 side.
10 or by pulling it out of the rail slot 010, the bow seal device 05 is attached to the hull 01.
It is designed to be attached to and detached from.

[0003]

However, in the above-mentioned conventional sealing device mounting structure, as the hull 01 of the air cushion boat becomes larger, the bow seal device 05 also becomes larger and the weight increases. As the length of the guide rail 09 increases, the frictional resistance between the guide rail 09 and the columnar portion 012 of the upper edge portion 06 of the bow seal device 05 increases, so that the columnar portion 012 is inserted into and pulled out of the guide rail 09. Becomes a difficult operation, and it becomes difficult to replace the sealing device. Further, when the seal device is replaced, the entire seal is replaced, so that the cost is high and the cost is high.

[0004] Therefore, the present invention is based on the problem that even if the size of the air cushion boat becomes large and the sealing device becomes large and heavy, the replacement of the seal for maintaining the sealing function requires only the replacement of a small and lightweight replacement seal. To provide a bow seal mounting structure for a side wall type air cushion boat, which facilitates the replacement work of the seal, makes it possible to save the material of the replacement seal, and enables the replacement work of the seal even at sea. It is.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a bow seal mounting structure for a side wall type air cushion boat according to the present invention has a lower end portion which is expected to be worn due to contact with the sea surface during traveling. Has a notch formed by notching in advance,
An opening is formed in the upper part, and the main body seal is fixed to the hull, and the notch at the lower end of the main body seal inserted through the opening of the main body seal is sealed. And a replacement seal that can be replaced by being pulled out from the device.

The bow seal mounting structure for a side wall type air cushion boat according to the present invention is provided with a rail extending on the hull side in the width direction of mounting the main body seal, and movably disposed along the rail. Winch and guide sheave,
One end is connected to the replacement seal, and the other end is provided with a support rope selectively connected to one of the rope connecting portion of the winch and an eye plate protruding from the hull.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 (1) is a perspective view showing a bow seal mounting structure of a side wall type air cushion boat according to an embodiment of the present invention, and FIG. 1 (2) shows the bow seal device shown in FIG. 1 (1). FIG. 2 shows a side view of one enlarged view. In FIG. 1, a horizontal partition plate 1 'provided on a front ceiling portion of a cushion room below a hull 1 of a side wall type air cushion boat has a main body seal 2 made of cloth reinforced rubber or cloth reinforced thermoplastic elastomer. The upper edge is fixed by a large number of bolts 4 in a state where the upper edge is pressed by a frame 3 on a mounting flange protruding from a partition plate 1 ′.

The main body seal 2 is notched in advance at a lower end portion which is expected to be worn due to contact with the sea surface as shown as a notch portion 5 and a replacement seal 7 is inserted and removed at an upper portion. Has an opening 6 opening upward and forward. The replacement seal 7 is fixed at its upper end to a cap fitting 8 for closing the opening 6 with a bolt, and the opening 6 of the main body seal 2.
The notch 5 at the lower end of the main body seal 2 is sealed by being inserted into the inner surface side of the main body seal 2. Opening 6
The replacement seal 7 inserted therein is fixed to the main body seal 2 by fixing the frame 3 and the cap metal 8 to each other with bolts. When the lower end of the replacement seal 7 is worn due to contact with the sea surface as shown as a worn portion 10, the worn replacement seal 7 is pulled out from the opening 6 of the main body seal 2, and a new replacement seal is inserted. Can be exchanged.

As shown in FIGS. 1 (2) and 2, the lower ends of the replacement seals 7 arranged adjacent to each other in the width direction of the hull 1 are not turned forward by the pressure of cushion air. As described above, the distal ends of the support ropes 14 whose base ends are respectively connected to the eye plates 13 protruding from the partition plates 1 ′ of the cushion chambers are connected to the lower portions of the inner surfaces of the replacement seals 7 via the connecting links 15. Connected. Further, on a partition plate 1 'of the cushion room, a movable platform 12' that moves in the width direction of the hull 1 along a rail 23 extending in the width direction of the hull 1 is provided. A winch 11 and a guide sheave 12 for pulling the replacement seal 7 into the inside of the main body seal 2 through the opening 6 are provided on 12 ′. And the partition plate 1 '
The winch 11 corresponds to the position of each replacement seal 7.
A rope through hole 6 'for passing the rope wound by the rope is formed. As described above, the winch 11 and the guide sheave 12 are mounted on one carriage 12 ', and the carriage 12' is mounted on the rail 2 on the partition plate 1 '.
By moving in the width direction of the hull 1 along 3, the replacement seals 7 can be sequentially replaced.

FIG. 3A is an enlarged detailed view of a part a of FIG. 1B, and FIG. 3B is a cross-sectional view of a main part taken along line BB of FIG. FIG. 4 (1) and FIG.
FIG. 2B is an enlarged detailed view of a part b in FIG. 1B in different operating states.

3 (1) and 3 (2), the connecting portion of the replacement seal 7 with the supporting rope 14 is provided by bolting the sealing material of the replacement seal 7 to the FRP plate 19 from both sides. It is reinforced by fixing with 20. In order to prevent the FRP plate 19 and the seal material of the replacement seal 7 from sliding relative to each other due to the tension F of the support rope 14, the rope 18 is passed through the edge of the seal material. The FRP plate 19 is not caught by the thickness portion of the rope 18 and does not shift.

The procedure for connecting the support rope 14 to the eye plate 13 on the partition plate 1 'is as follows. First,
As shown in FIG. 2, one thimble 16 of the two thimbles 16 and 17 attached to the support rope 14 is
As shown in the figure, the reel is connected to the guide rope 14 'of the winch 11 and wound up.
Is connected to the eye plate 13, and then the thimble 16 is removed from the guide rope 14 'of the winch 11, as shown in FIG.

5 (1) to 5 (3) show how to attach the replacement seal 7. 5 (1) to 5 (3)
Although the mounting procedure is shown in order, the replacement seal can be removed by following the reverse procedure from FIG. 5 (3) to FIG. 5 (1).

In FIG. 5A, the replacement seal 7 is
The crane is lifted by a crane via a lifting cable 22 connected to an eye plate 9 projecting from the cap hardware 8, and a guide rope 14 'from a winch 11 in the ship.
To the thimble 16. The replacement seal 7 is
In order to smoothly insert into the opening 6 at the upper part of the main body seal 2, the shape is temporarily narrowed by the temporary lashing rope 21 at several positions, and the shape is narrowed.

In FIG. 5B, the winch 1 in the ship
1 and the crane, the replacement seal 7
Is gradually drawn into the inside of the body seal 2 through the opening 6 of the body seal 2. When the replacement seal 7 has been inserted into the opening 6 to some extent, the temporarily fixed rope 21 that has been temporarily fixed is removed.

In FIG. 5 (3), when the replacement seal 7 is completely inserted into the inside of the main body seal 2 through the opening 6, the main body seal 2 and the replacement seal 7 are fixed by bolts at the position of the opening 6. At the same time, the support rope 14 is connected to the eye plate 13 on the hull.

[0017]

According to the bow seal mounting structure of the side wall type air cushion boat of the present invention, the following effects can be obtained. (1) A body fixed to a hull having a notch formed by notching a lower end portion which is expected to be worn due to contact with the sea surface during sailing, and an opening formed in an upper portion. A seal, and a replacement seal that is inserted through the opening of the body seal to seal the notch at the lower end of the body seal and that can be pulled out of the opening and replaced when worn out. Therefore, even if the air cushion boat becomes larger and the seal device becomes larger and heavier, the replacement of the seal to maintain the seal function requires only the replacement of a small and lightweight replacement seal, making it easy to replace the seal. In addition, the material for the replacement seal can be reduced, and the replacement of the seal can be performed on the sea (claim 1). (2) a rail extending on the hull side in the mounting width direction of the main body seal, a winch and a guide sheave movably disposed along the rail, and one end connected to the replacement seal; The other end is provided with a support rope selectively connected to one of the winch's rope connecting portion and the eye plate protruding from the hull, so that the replacement rope inserted into each body seal is provided. As soon as the seal is worn, the replacement seal can be replaced sequentially by moving the winch and the guide sheave along the guide rail, and the support rope with one end connected to the replacement seal is attached to the rope connection side of the winch. When connected, the replacement of the replacement seal can be easily performed by operating the winch, and the support rope is protruded from the hull side. When connected to the rate, the pulling action of the supporting rope can prevent the air pressure of the cushion air at the lower end of the replacement seal from turning over, and the air cushion boat becomes larger and the seal device becomes larger and heavier. In addition, the replacement of the seal for maintenance of the seal function requires only the replacement of a small and lightweight replacement seal, which facilitates the replacement work of the seal and saves the material of the replacement seal. Can be replaced (claim 2).

[Brief description of the drawings]

FIG. 1 (1) is a perspective view of a main part of a bow seal mounting structure of a side wall type air cushion boat according to an embodiment of the present invention, and FIG. 1 (2) is a view A of FIG. 1 (1). FIG. 4 is an enlarged side view of one of the bow seal devices as viewed along line -A.

FIG. 2 is a perspective view of a bow seal mounting structure of the side wall type air cushion boat according to the embodiment of FIG. 1;

1 is an enlarged detailed view of a part a of FIG. 1B, and FIG. 3B is a cross-sectional view of a main part taken along line BB of FIG. 3A. FIG.

4 (1) and FIG. 4 (2) respectively show FIG.
FIG. 4 is an enlarged detailed view of a part b of (2) in different operating states.

FIGS. 5 (1) to (3) are explanatory views showing how to attach a replacement seal.

FIG. 6 is a side view showing an example of a conventional air cushion boat.

FIG. 7 is a development view of a bow seal device of the air cushion boat of FIG. 6;

FIG. 8 is a fragmentary side view of a mounting portion of the bow seal device of the air cushion boat of FIG. 6;

FIG. 9 is a cross-sectional view of a main part taken along line CC of FIG. 8;

[Description of Signs] 01 Hull of Air Cushion Boat 02 Hull Side Wall 05 Bow Seal Device 06 Upper Edge of Bow Seal Device 09 Guide Rail 010 Guide Rail Slot 012 Cylindrical Portion 014 Coiled Spring 1 Hull 2 of Air Cushion Boat Main Body Seal 3 Frame 4 Bolt 5 Notch 6 Upper opening of main body seal 6 'Rope through hole 7 Replacement seal 8 Cap hardware 9 Eye plate 10 Worn portion 11 Winch 12 Guide sheave 12' Moving platform 13 Eye plate 14 Support rope 14 ′ Guide rope 15 Connecting link 16 Thimble 17 Thimble 18 Rope 19 FRP board 20 Bolt 21 Temporary securing rope 22 Lifting rope 23 Rail

Claims (2)

[Claims] 1. A notch formed by previously notching a lower end portion which is expected to be worn by contact with the sea surface during sailing, and an opening is formed in an upper portion to be fixed to a hull. And a replacement seal that is inserted through the opening of the body seal to seal the notch at the lower end of the body seal, and that can be pulled out of the opening and replaced when worn out. A bow seal mounting structure for a side wall type air cushion boat, comprising: 2. The bow seal mounting structure for a side wall type air cushion boat according to claim 1, wherein a rail extending on the hull side in a mounting width direction of the main body seal, and movable along the rail. One end is connected to the provided winch and guide sheave and the replacement seal, and the other end is selectively connected to either the rope connection part of the winch or the eye plate protruding from the hull. And a support rope for a side wall type air cushion boat.