JPH03213492A - Offshore heliport - Google Patents

Abstract

PURPOSE:To contain a water-borne heliport in a compact state during the non- use by having a first arm the one end of which is supported on a fixed part, e.g. a quay wall, in a manner to be capable of freely swinging and a second arm the one end of which is supported at the other end of the first arm in a manner to be capable of freely swinging, and providing a heliport body con nected to the other end part of the second arm. CONSTITUTION:An offshore heliport 10 comprises a first arm 13 having the one end pivotally supported with a vertically extending fixed shaft 12 mounted on a fixed part 11, and a second arm 15 having the one end 15a supported in a swinging manner on a first revolving shaft 14 mounted at the other end of the arm 13. A first float 17 is situated below the first revolving shaft 14 and a second float 18 is located below a second revolving shaft 16 mounted on the other end 15b of the second arm 15. A helicopter body 19 in and from which a helicopter lands and takes off is mounted above the second revolving shaft 16. Drive devices 20 and 21 to swing the arms 13 and 15 are mounted on the fixed shaft 11 and the first revolving shaft 14, respectively.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a water helipad, which is installed on water to support transportation systems such as helicopters, especially in areas where land heliport facilities are lacking. It concerns a floating helipad.

[Conventional technology]

Conventionally, as water helipads, for example,
The one shown in the figure is known.

That is, the floating heliport 1a shown in FIGS. 4 and 7 has a float 4 attached to the lower part of the helipad main body 2 via a strut extending into the water.

This water helipad is floated on the water by the buoyancy of a float 4, and as shown in Fig. 4, the helipad main body 2 is fixed to an anchor 5a buried in the seabed with a chain or the like 5b, and is installed on a predetermined water surface. There is.

Moreover, the water helipad ib shown in FIG. 6 is formed by forming the deck 7 of the ship 6 as a heliport.

Furthermore, the floating helipad 1c shown in FIG. 7 uses a floating pier 8 as a helipad, which is attached to a quay 9.

[Problem to be solved by the invention]

However, since all of the water heliports la, lb, and lc shown in FIGS. 4 to 7 are floating on the water surface due to buoyancy, waves or the like may cause the water heliports la, lb, and lc to float on the water surface.

■c itself will shake.

Measures to suppress this shaking have not been taken at any of the water heliports Ia, Ib, and Ic.
There was a problem in that it was not easy to take off and land on C.

Furthermore, if these water helipads Ia, lb, and lc are permanently installed, they may obstruct water traffic such as ships.

Therefore, as shown in Fig. 5, there is a method of connecting the floating helipad 1a to a ship 6, towing the floating helipad 1a to the ship 6, and towing it to a place where it will not interfere with water traffic. It is considered.

However, in this case, each time a ship passes, the water heliport 1
a has to be moved, and since the float 4 attached to the lower part of the helipad body 2 via the strut 3 is entirely located underwater, the float 4 has a relatively large volume. The problem was that the resistance from seawater was extremely strong, making towing work difficult.

In addition, for the water helicopter) 1b shown in Figure 6,
Since the deck 7 of the boat 6 is formed as a helipad, movement is easy, but there is a problem that the comparison fishing boat 6 becomes large.

Furthermore, in the floating helipad 1c shown in FIG. 7, since the floating pier 8 moored to the quay 9 is used as a heliport, it occupies a relatively wide area of the water surface when not in use. There is a problem in that it obstructs the berthing of ships.

In view of the above points, the present invention suppresses shaking caused by waves, and reduces the area occupied on the water surface when not in use, making takeoff and landing easy, and preventing navigation of other vessels. The aim is to provide a floating helipad that does not interfere with the

[Means to solve the problem]

According to the water helipad of the present invention, the above object is achieved by a fixed shaft extending in the vertical direction provided on a fixed part such as a quay of a port, one end of which is swingably pivoted to the fixed shaft, and the other end of which is pivoted to the fixed shaft. a first arm having a first pivot axis extending parallel to the fixed axis and provided with a first float below the first pivot axis; and the other end of the first arm one end is swingably supported with respect to the first pivot axis, and the other end has a second pivot axis extending parallel to the first pivot axis, and the second a second arm, which is provided with a second float below the pivot axis, and further includes a helipad body above the second pivot axis on which a helicopter can take off and land; This is achieved by providing the shaft and the first pivot shaft with drive devices for swinging the first and second arms about the fixed shaft and the first pivot shaft, respectively.

[For production]

According to the above configuration, when in use, by operating the drive devices provided on the fixed shaft and the first rotating shaft,
The first and second arms are each in an extended state extending above the water surface from a fixed part such as a quay.

The first arm above has a fixed axis and a first pivot axis.

The second arm is supported on the fixed part and the water surface via the first float, and the second arm has the first pivot shaft;
It will be supported on the water surface via the second pivot axis, the first float, and the second float, so that the entire water helipad of the present invention will be held above the water surface.

Moreover, because one end of the first arm is pivotally supported on a fixed part on land, even if the first and second funnels are subjected to vertical movement of the water surface due to waves, the first and second funnels are substantially The second arm does not swing up and down due to waves.

Therefore, the helipad body provided above the second pivot axis is also prevented from vertically moving due to waves, so that the helicopter can easily take off and land on the helipad body.

Furthermore, when not in use, the drive devices provided on the fixed shaft and the first pivot shaft are operated in the opposite direction to those in use, so that the other end of the second arm is pivoted to the fixed shaft of the first arm. The first and second arms are respectively swung in opposite directions so as to be in the folded state so as to be substantially proximate to one end of the folded arm.

As a result, the entire water helipad of the present invention hardly extends above the water surface and occupies only a small area above the water surface, so it does not interfere with the navigation or berthing of other ships.

〔Example〕

EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of the water helipad of the present invention will be described in detail based on the accompanying drawings.

In FIG. 1, the water helipad 10 is located on the quay of a port,
A vertically extending fixed shaft 12 provided on a fixed part on land such as a breakwater, in the illustrated case, a quay 11, one end 13a is swingably supported by the fixed shaft 11, and the other end 13b
The first arm 13 has a first pivot shaft 14 extending parallel to the fixed shaft 11, and the other end 13b of the first arm 13 has one end 15a with respect to the first pivot shaft 14. A second arm 15 is pivotably supported and has a second pivot shaft 16 extending parallel to the first pivot shaft 14 at the other end 15b.

The first pivot shaft 14 has a first float 1 below it.
The second pivot shaft 16 has a second float 18 below it, and above it a helipad main body 19 on which the helicopter takes off and lands.

The second float 18 is set to have a larger buoyancy than the first float 17 so that it can counter the weight of the helicopter when it lands, which will be described later. has been done.

Further, the fixed shaft 11 is provided with a first drive device 20 for swinging the first arm 13 around the fixed shaft 11.

Further, the first pivot shaft 14 is provided with a second drive device 21 for swinging the second arm 15 around the first pivot shaft 14 .

Next, the operation of the above embodiment will be described.

In use, by operating the drive devices 20.21 provided on the fixed shaft 11 and the first pivot shaft 14,
The first and second arms 13.15 are each in an extended state (see FIG. 2) extending directly above the water surface from the quay 11.

The first arm 13 has a fixed shaft 12 and a first pivot shaft 14 .
It is supported on the quay wall 11 and the water surface via a first float 17.

Further, the second arm 15 is supported on the water surface via the first pivot shaft 14, the second pivot shaft 16, the first float 17 degrees, and the second float 18.

At this time, since one end 13a of the first arm 13 is pivotally supported on the quay 11, which is a fixed part on land, it is assumed that the first and second floats 17 and 18 are subjected to vertical movement of the water surface due to waves. Also, substantially the first and second arms 13.
15 will not be swayed down by the waves.

Therefore, since the helipad main body 19 provided on one side of the second pivot axis 16 is also prevented from vertically moving due to waves, the helicopter 22 can easily take off and land on the helipad main body 19. Become.

In addition, when not in use, as shown in FIG. 3, a drive device 20.
21, the first and second arms 13.15 are moved until the other end 15b of the second arm 15 is substantially close to one end 13a of the first arm 13, which is pivoted on the fixed shaft 12. Swing them in opposite directions to bring them into the folded state.

As a result, the water helicopter 10 of the present invention hardly extends above the water surface and occupies only a small area on the water surface, so it does not interfere with the navigation or anchorage of other ships. do not have.

In addition, when the water helipad 10 of the present invention is installed on the sea, the first arm 13, for example, is installed so as to be able to cope with the vertical movement of the sea level due to high tide P and low tide Q as shown in FIG.
One end 13a may be attached to the fixed shaft 12 so as to be movable up and down depending on the position of the sea surface, or the first and second floats 1718 may be moved up and down depending on the position of the sea surface.

〔Effect of the invention〕

As described above, according to the water helipad of the present invention,
It can suppress shaking caused by waves, and when not in use, it can be folded up to reduce the area occupied on the water surface, making it easy to take off and land and not interfere with water traffic such as the navigation of other ships. It has an excellent effect.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the water helipad of the present invention, FIG. 2 is a schematic perspective view showing the water helipad of FIG. 1 in an extended state, and FIG. 3 is a folded state of the embodiment of FIG. 1. FIG. 4 to 7 are schematic diagrams showing examples of conventional water helipads, respectively.

Claims (1)

[Claims] (1) A fixed shaft extending in the vertical direction provided on a fixed part such as a quay of a port, one end of which is swingably pivoted to the fixed shaft,
a first arm, the other end of which has a first pivot axis extending parallel to the fixed axis, and a first float provided below the first pivot axis; One end is pivotably supported with respect to the first pivot axis of the other end of the arm,
The other end has a second pivot shaft extending parallel to the first pivot shaft, and a second float is provided below the second pivot shaft, and the second pivot shaft and a second arm having a helipad body above which a helicopter can take off and land, and the first and second arms are connected to the fixed axis and the first rotation axis, respectively. A water helipad characterized by being equipped with a drive device for swinging around a first pivot axis.