JPH0113679Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a gangway device installed on the side of a ship and used for boarding and alighting.

``Prior Art'' Conventionally, as the above-mentioned gangway device, those shown in FIGS. 3 and 4 have been known.

This gangway device 1 connects the upper end of a gangway main body 3 installed on the side of a ship's hull 2 with a hinge 4 to an upper landing 5 continuing to the deck so as to be rotatable in the vertical direction. This is a system in which the gangway is held by a sling 6, and by adjusting the length of the sling 6, the height position of the lower landing 7 provided at the bottom of the gangway main body 3 is set.

In this gangway device 1, as shown in FIG. 4, the lower landing 7 is rotatably supported at its base end by a pin 8 at the lower end of the gangway main body 3, and has a fixing flange at the base end. 7a is provided, and by passing a fixing pin (not shown) through which the gangway body 3 is inserted into a positioning hole 7b formed in the fixing flange 7a, the structure is fixed to the gangway body 3. It's summery. In addition, even when changing the height of the lower landing 7 according to the height of the deck of the boat 9 or the height of the deck of the ship 2, the positioning method is used so that the lower landing 7 can be kept almost horizontal (parallel to the water surface) Three holes 7b are provided at different positions, and a positioning hole 7b for driving a fixing pin is provided.
By selecting the lower landing 7 in three stages.
The angle is adjustable.

``Problems to be solved by the invention'' However, due to its configuration, the conventional gangway device 1 as described above can only adjust the angle of the lower landing 7 in stages, and moreover, the operator has to adjust the angle so that it is almost horizontal. Since the angle adjustment work must be completed on the deck of the ship, it is difficult and time-consuming to set the angle accurately.
There was a problem with not being level.

Also, when boarding and disembarking, landing 7 shakes together with the ship,
There is a problem that the shaking of the landing 7 and the shaking of the ferry 9 do not match, and this, combined with the above-mentioned problem, can make boarding and alighting dangerous when the weather is bad and the water surface is rough. It was hot.

This idea was proposed to solve the above-mentioned problem, and allows the lower landing to be kept level without any effort when boarding and disembarking from the ferry.
It is also an object of the present invention to provide a gangway device which can cause the sway of the lower landing to match the sway of a passing ship, and has excellent operability and safety.

"Means for Solving the Problem" The gangway device of this invention consists of a main body whose upper end is pivoted on the ship's hull and can rotate in the vertical direction, and a main body whose upper end is pivoted on the bottom of the main body and can rotate in the vertical direction. It is similar to the conventional one in that it includes a movable lower landing. However, since the gangway device of the present invention solves the above-mentioned conventional problems, it includes a floating body that is installed under the lower landing and can be expanded and contracted in the vertical direction by air pressure, and a compressor for the floating body. The essential components include an air supply/discharge device that supplies and discharges air, and a tension spring that contracts the floating body and stores it under the lower landing.

"Function" With such a configuration, the weight of the gangway body itself is supported by the gangway suspension rope, so that when the gangway body is used, the buoyancy of the floating body balances the load applied to the lower landing. By simply supplying compressed air into the floating body, the lower landing is floated on the water surface by the floating body and maintained horizontally and at a constant height above the water surface. Moreover, since the landing itself is floating on the water surface, similar to when the boat is passing, the sway of the boat and the sway of the landing are almost the same, making boarding and alighting easier, and improving operability and safety. We will improve together. In addition, by adjusting the amount of compressed air inside the floating body, the height of the landing can be changed, and when the compressed air is discharged, the floating body is contracted by the biasing force of the tension spring and stored under the lower landing. It is something that can be done.

Embodiment FIGS. 1 and 2 show an embodiment of the gangway device of the present invention.

This gangway device 10 includes a gangway main body 3 whose upper end side is pivotably supported on an upper landing 5 fixed to the hull 2 of the ship and is rotatable in the vertical direction; It is the same as the conventional one in that it is provided with a movable lower landing 7 and that the gangway main body 3 is raised and lowered by the gangway suspension rope 6.

However, in this gangway device 10, the cylinder member 11 and the floating body 12 are attached below the lower landing 7 in vertical alignment.

The cylinder member 11 is mainly used to adjust the height of the lower landing 7, while the floating body 12 is used to provide the necessary buoyancy so that the lower landing 7 floats on the water surface 13. As shown, the outer wall 1 has a bellows structure that can be expanded and contracted in the vertical direction.
Air chambers 11b and 12b are formed inside by 1a and 12a.
are formed, and these air chambers 11b, 12b
It is possible to expand and contract vertically by supplying and discharging compressed air.

These air chambers 11b, 12b communicate with each other through an air inlet/outlet hole 14 provided between them, so that compressed air can be supplied and discharged from the cylinder member 11 side into both air chambers 11b, 12b. It's summery.

Supplying compressed air to the air chambers 11b and 12b
Discharge is effected by an attached air supply/discharge device 15.

This air supply/discharge device 15 includes a supply/discharge device main body (not shown) installed in the hull 2, and an air supply installed along the gangway main body 3 to guide compressed air from the supply/discharge device main body to the air chamber 11b. A pipe 16, an air supply valve 17 that opens and closes the air supply pipe 16, and the air chamber 11b.
The exhaust valve 18 is configured to open and close the exhaust valve to the atmosphere.

Further, a tension spring (tension coil spring) 19 is provided between the lower surface of the landing 7 and the lower surface of the floating body 12.
is tensioned and compressed air is not supplied to each air chamber 11b, 12b, the cylinder member 11 and floating body 12 are compressed by the tension spring 19, and are compactly stored on the lower surface of the landing 7. ing.

The operation of the gangway device 10 will be explained below.

When used for getting on and off, the length of the hanging rope 6 is first adjusted to set the lower landing 7 to a predetermined height above the water surface 13. Then, the air supply valve 17 is opened and compressed air is supplied from the air supply pipe 16 to the air chamber 11.
b, 12b.

The floating body 12 expands downward by the supplied compressed air, and when a predetermined amount of compressed air is supplied, the floating body 12 causes the landing 7 to float above the water surface 13, and the landing 7 becomes horizontal. Nikatsu water surface 13
It will be kept at a constant height from Moreover,
The height of the landing 7 can be set to a desired height for easy getting on and off by adjusting the amount of compressed air supplied into the cylinder member 11 to adjust the amount of expansion of the cylinder member 11. Since the landing 7 itself is floating on the water surface 13 like the ferry 9, the shaking of the ferry 9 and the shaking of the landing 7 are almost the same, making it easier to get on and off the boat.
Both operability and safety will be improved.

When the vehicle is not used for getting on and off, that is, when it is stored, the exhaust valve 18 is opened to remove the air from each air chamber 11b, 12b. Then, the cylinder member 11 and the floating body 12 are compressed upward by the biasing force of the tension spring 19 and are compactly stored on the lower surface of the landing 7.

"Effect of the invention" As is clear from the above explanation, the gangway device of the invention consists of a floating body that is installed under the lower landing and can be expanded and contracted in the vertical direction by air pressure, and a floating body that supplies compressed air to the floating body. It is equipped with an air supply/discharge device for supplying and discharging air. Therefore, when using the gangway main body, compressed air is simply supplied into the floating body so that the buoyancy of the floating body balances the load applied to the lower landing, and the lower landing floats on the water surface by the floating body, It will be kept horizontally and at a constant height above the water surface. Moreover, since the landing itself is floating on the water surface like a ferry,
The sway of the ship's passage and the sway of the landing will almost match, and by adjusting the amount of compressed air inside the floating body, the landing can be set to the desired height, allowing the ship to pass from the lower landing. It becomes easier to go up and down, improving safety. Furthermore, when the compressed air is discharged, the floating body is naturally contracted and reduced in size by the biasing force of the tension spring, and can be stored under the lower landing, providing excellent operability.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of the gangway device according to the present invention. Figure 1 is a schematic diagram of the overall configuration, Figure 2 is an enlarged view of the main parts in Figure 1, and Figure 2 is an enlarged view of the main parts in Figure 1. Figures 3 and 4 show conventional gangway devices.
FIG. 3 is a schematic diagram of the overall configuration, and FIG. 4 is an enlarged view of the main parts in FIG. 3. 2... Hull, 3... Gangway body, 6... Gangway hanging rope, 7... Lower landing, 8... Pin, 10... Gangway device, 11... Cylinder member, 12... Floating body, 15... Air Supply/discharge device, 17...Air supply valve, 1
8...exhaust valve, 19...tension spring.

Claims (1)

[Scope of utility model registration request] A gangway main body whose upper end side is pivotally supported by the ship's hull and is rotatable in the vertical direction, a gangway suspension cable that spans the gangway main body on the side of the ship's hull, and a trunk ladder body whose upper end side is pivotally supported by the ship's hull and is rotatable in the vertical direction. A gangway device comprising a lower landing, a floating body attached below the lower landing that can be expanded and contracted in the vertical direction by air pressure, and an air supply for supplying and discharging compressed air to the floating body. A gangway device comprising: a supply/discharge device; and a tension spring that contracts the floating body and stores it under a lower landing.