JPH0322076Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention mainly relates to an air inflatable boat (air boat) that is mounted on a large ship and lowered to the sea when necessary, and used for work on the water, lifesaving work, etc.

[Conventional technology]

Airboats are widely used as lifeboats and support boats for marine accidents, for work such as painting and repairing ship hulls, and for leisure purposes. In particular, when an airboat is used as a support boat or lifeboat in the event of a maritime accident, the necessary equipment and equipment for rescue operations are loaded onto the hull, and rescuers and others are on board, and then lowered from the vessel to the sea to assist the victims. After boarding the ship, the work of hoisting it back onto the ship will be carried out. For this work, a locking member for attaching the hook of the hanging rope is attached to the hull of the ship, and as shown in Figure 4, the structure for attaching the locking member and the conventional airboat suspension method are as follows: Hook locking members 12, 1 are provided at both ends of the transom plate 11.
A keel 1 is provided on the bow side of the boat through the bottom plate 13.
4, a hook locking member 15 is provided, and the hanging rope 16 hooked to each of the locking members 12, 12, 15 is tied to one wire W and suspended by three-point support (actual method). Publication No. 57-19359),
As shown in FIG. 5, a hook locking member 23 is attached to the upper edge of the reinforcing belt 22 glued across the bottom of the ship and the tubes 21 on both sides, and a rope 24 hooked to each locking member is attached to the upper edge of the reinforcing belt 22. Unite in wire W 4
Methods such as hanging by point support are known.

[Problem that the invention attempts to solve]

By the way, when using the former method, the keel 14
Since the transom plate 11 and the rigid transom plate 11 are used to hang the rope, no stress is placed on the tube 17 of the gunwale, but the three-point support tends to cause twisting and swaying. There is a problem in that when a load is applied to one side of the ship, the hull tilts significantly. Furthermore, since the hanging rope 16 extends obliquely upward from above the bottom plate, the mounting space and boarding space at the center of the bottom plate are significantly restricted. On the other hand, according to the latter method, it is stable because it is supported at four points, there are few space restrictions, and the load of the hull is received by the reinforcing belt, so there is no burden on the tube 21, but the process of attaching the reinforcing belt 22 In addition, manufacturing is complicated because the tube must be attached in a way that conforms to the shape of the tube when it expands.Furthermore, the thickness of the reinforcing belt 22 protrudes over the bottom of the hull during sailing, which reduces resistance. This has the disadvantage of reducing navigation performance.

The purpose of the present invention is to provide an airboat in which a suspension rope locking member can be installed around the tube without placing a large burden on the tube when the hull is suspended.

[Means for solving problems]

In order to achieve the above object, the airboat according to the present invention is an airboat that has a tube, a transom plate, a set of annular bodies, and a hanging rope. The transom plate supports the space between the two tubes on the stern side and closes the open rear opening of the hull. As a hanging rope anchor, it consists of a combination of a first annular body that locks a hook provided on the hanging rope, and a second annular body through which a rope hooked to the first annular body is inserted. The first annular body and the second annular body are attached to the outer surface and upper surface of the trunk of the tube on both sides with their positions shifted back and forth in accordance with the tensioning direction of the suspension rope, and the annular body is The sets are attached at least to the bow side and the stern side, and the hanging ropes are attached to the first hanging ropes, which are anchored to the sets of ring bodies on both sides of the bow side, and the sets of ring bodies on both sides of the ship's side. and a second hanging rope selected from either the top edge of both ends of the transom board or the transom board,
Both suspension ropes are guided above the center of the ship and tied together.

〔Example〕

Embodiments of the present invention will be described below using figures.

The boat body 1 shown in Fig. 1 has tubes 2 on both sides from the bow to the stern of the hull, a bottom sheet 3 is stretched between the bottom surfaces of the tubes 2 on both edges, and a transom board is placed between the rear portions of both tubes 2. 4 is supported and the rear opening is closed. 5 is a bottom plate. A keel 10 is set between the bottom plate 5 and the bottom sheet 3.

By pressurizing air into the tube 2 of the boat body 1, the body of the tube 2 swells into a circular shape and becomes a boat that also serves as a float. As shown in FIGS. 1 and 2, annular bodies 6 are attached to the top and outside of the outer periphery of the body of the tubes 2 on both sides, respectively, as anchoring devices for the hanging rope provided on the boat body 1 on the bow side.
a and 6b, and an annular body 7 such as an eye bolt is provided at both ends of the upper edge of the transom plate 4 on the stern side. Annular body 6a, 6 attached to tube 2
b is not particularly limited as long as it has a diameter and strength that allows the hanging rope to be inserted through and a hook provided on the hanging rope to be hung thereon, and a normal D ring for hooking can be used as is. The two annular bodies 6a and 6b provided on the upper and outer sides of the tube 2 on each side are used as a set to lock one hanging rope, and one set of annular bodies 6
The mutual positional relationship of a and 6b is shifted back and forth as shown in FIG. 1 in accordance with the tensioning direction of the hanging rope.

In the embodiment, as shown in FIG. 2, the hook 8a of the hanging rope 8 is hooked onto the annular body 6b provided on the sides of both tubes 2 on the bow side, and the rope 8 is
A hanging rope 8 is passed through an annular body 6a provided at the top of the tube 2 and led to the center of the ship as shown in FIGS. A hanging rope 9 with hooks hooked to the annular body 7 at both ends is tied above the center of the hull,
The binding point is hooked onto the hoisting wire W pulled out from a winch etc. mounted on the ship, and the winch winds or unwinds the boat body 1.
hoisted onto a ship or lowered onto the sea.

In this case, the hanging rope 9 is connected to the transom plate 4.
However, on the bow side, the load of the hull is distributed and received by each pair of annular bodies 6a and 6b, and the tube 2
No localized concentrated loads act on it. In particular, a hook 8a is hooked onto the annular body 6b on the side of the tube 2, and a hanging rope 8 is tied to the hook 8a.
By passing the rope through the upper annular body 6a and pulling it upward, the tension of the hanging rope 8 is changed to a force in the circumferential direction of the tube 2, and the hanging rope 8
Since the tension of the hanging rope 8 is absorbed by the contraction of the tube 2 between the pair of annular bodies 6a and 6b, the burden on the tube 2 due to lifting is small.

In the above embodiments, an example was explained in which a rigid transom plate was used to attach a hanging rope on the stern side, but alternatively, an annular body was attached to the top and side of the stern tube and the annular body was attached in the same way as on the bow side. Of course, it is also possible to suspend the hull by hanging a rope around the set. When the transom board is used to lift the hull, there are 6 points of support overall, and when the tubes are used on both the bow and stern sides, there are 8 points of support.
Provides point support.

[Effect of idea]

As described above, according to the present invention, an annular body for hanging a hanging rope is attached to the tube forming the side of the airboat, and a first annular body for hooking the rope hook and a rope from the first annular body are inserted through the tube. When the hull is suspended with a rope using a second annular body that guides the hull toward the center of the hull, a second annular body is attached to the tube to distribute the load of the hull during suspension between the upper part and the side of the tube. The hull can be stably supported by 6 to 8 points of support without placing any local strain on it, and since the gunwale is used to attach ropes, there are no restrictions on loading space on the bottom plate or boarding space. There are no lifeboats,
This has the effect of improving its original functions as a support boat and a work boat.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a side view, and Fig. 4 is a plan view showing a first example of a conventional air boat. , FIG. 5 is a side view showing a second example of a conventional airboat. 1...Boat body, 2...Tube, 3...Bottom sheet, 4...Transom board, 5...Bottom plate, 6
a, 6b... Annular body, 8... Hanging rope, 8a...
...Futsuku.

Claims (1)

[Claims for Utility Model Registration] An airboat that has a tube, a transom plate, a set of annular bodies, and a hanging rope. The vessel is enclosed to form a gunwale with a circular cross section.The transom plate supports the stern side of both tubes and closes the open rear opening of the hull. The stopper consists of a combination of a first annular body that locks a hook provided on a hanging rope, and a second annular body through which a rope hooked to the first annular body is inserted. The body and the second annular body are attached to the outer surface and the upper surface of the body of the tubes on both sides with their positions shifted forward and backward in accordance with the tensioning direction of the hanging rope. and the stern side, and the hanging rope is attached to at least the bow side, and the hanging rope is attached to the first hanging rope that is anchored to the pair of ring bodies on both sides of the bow side, and the set of ring bodies on both sides of the ship's side or the transom plate. It consists of a second hanging rope that is fixed by selecting one of the upper edges of both ends,
An airboat characterized in that both hanging ropes are guided above the center of the hull and tied together.