JPS5839991Y2 - hydrofoil - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a hydrofoil.

The weak point of a hydrofoil boat is that if the hydrofoil collides with an obstacle floating on the water surface (for example, driftwood), the hydrofoil can be damaged relatively easily, making it impossible to navigate.

Therefore, hydrofoils are prohibited from sailing at night.

Therefore, the present invention provides a hydrofoil boat that eliminates such weaknesses.

A first embodiment of the present invention will be explained below with reference to FIGS. 1 to 3.

1 is a hull, 2 & additional hull 10 are located downward on both sides, side floating bodies whose water line area decreases as they go downward; 3 is a pair of hydrofoils extending horizontally from the lower end corner of the side floating body 2;
Reference numeral 4 denotes a pair of penetrating wings arranged between the vicinity of the front lower end of each side floating body 2 and the center of the bottom surface of the hull 1.

The upper end is attached to the upper part of the front side of the hull 1 or the leading edge of each side floating body 2, and the lower end is attached to the leading edge of the hydrofoil 3, and they are arranged parallel to the hull length direction A at an appropriate interval from each other. A large number of protection members 5 are provided.

As this protective member 5, iron pipes, reinforcing bars, piano wire, etc. can be considered.

Further, the horizontal tangents connecting each of the protection members 5 are streamlined so that water resistance is as small as possible.

In the above configuration, even if the vessel is navigating on the surface of the water where obstacles are floating, the θ obstacle collides with the protective member 5 before colliding with the hydrofoil 3 or the penetrating wing 4, and is therefore trapped in the water. The wings 3 and the penetrating wings 4 will not be damaged by obstacles and will not become unnavigable.

Therefore, night navigation is also possible.

According to the above configuration, in normal safe sailing conditions, most of the weight of the hull 10 is generated by the lifting force of the hydrofoils 3, and the rest is generated by the side floating bodies 2.
It is supported by the buoyancy of the buoyancy and the lifting force of the penetrating wings 4.

The restoring force against the lateral inclination of the hull 1 is the side floating body 2.
This is caused by the change in buoyancy Q of .

Therefore, the restoring force against the lateral inclination of the hull 1 is small when the inclination angle is small, and the riding comfort is good.

On the other hand, when the hull 1 is tilted in the longitudinal direction, changes in the lift of the penetrating wings 4 act as a restoring force, and the ship has an automatic attitude control capability.

The second embodiment of the present invention will be explained based on FIG.
In this embodiment, each side floating body 6 is extended straight downward, and the outer surface of the lower end of each side floating body 6 is made into an arcuate surface, and the inner surface is made into a vertical surface. A relatively short hydrofoil 7 is provided to protrude horizontally.

Then, a connecting rod 8 is arranged between the front lower ends of the floating bodies 6 on both sides,
A large number of rods each having an upper end attached to the front upper part of the hull 1 or the front edge of each side floating body 6 and a lower end attached to the connecting rod 8, and arranged parallel to the hull length direction A at appropriate intervals. A protective member 5 is provided.

Further, in the case of a surface-penetrating hydrofoil boat shown in FIG. 5, a protective member 5 is provided between the upper part of the hull 1 and the hydrofoil 3 (third embodiment).

Furthermore, in the case of the fully submersible hydrofoil boat shown in FIG.
A protective member 5 is provided between the connecting rod 9 and the upper part of the hull 1 (the embodiment shown in FIG. 4).

As described above, according to the hydrofoil of the present invention, the upper end is attached to the upper part of the front side of the hull or the overhang from the upper part, and the lower end is attached to the lower part of the front side of the hull or the overhang from the lower part, In addition, a large number of protective members are arranged parallel or almost parallel to the length of the hull at appropriate intervals, so even if the obstacle is floating on the surface of the water, the obstacle will not be affected by the hydrofoils. It collides with the protective member and is ejected before colliding with the penetrating wing.

Therefore, hydrofoils and penetrating wings are damaged by obstacles,
It will not become unnavigable.

Further, each protective member can be easily formed from iron pipes or the like, and is inexpensive, so that it does not lead to an increase in cost.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, with FIG. 1 being a side view, FIG. 2 being an enlarged bottom view of the bow portion, and FIG. 3 being a front view. Fig. 4 is a front view showing a second embodiment of the invention, Fig. 5 is a schematic front view showing a third embodiment of the invention, and Fig. 6 is a schematic front view showing a fourth embodiment of the invention. It is a front view. 1...hull, 2.6...side floating body, 3.
7...Kokusui entertainment, 4...Penetrating wing, 5...
・Protective member, A...Longitudinal direction of the hull.

Claims (1)

[Scope of utility model registration request] The upper end is attached to the upper part of the front part of the hull or an overhang from the upper part, and the lower end is attached to the lower part of the front part of the hull or an overhang from the lower part, and parallel to the longitudinal direction of the hull at an appropriate distance from each other. Alternatively, a hydrofoil is provided with a large number of protective members arranged substantially in parallel.