JPH06219391A - Rudder device for ship - Google Patents

Abstract

PURPOSE:To provide a rudder device for a ship to provide a high propulsion force, i.e., a tagging power and a pushing power, by using the rubber device for a tag boat for a bay or a coast, in a rudder device for a ship used for changing the advancing direction of a ship, such as a cargo ship, a tanker, a container ship, a fishing boat, and a tag boat. CONSTITUTION:In rudder equipment mounted on the stern part of a ship, a rudder device comprises a rudder body 7 arranged at the rear, positioned facing a propeller 4 for ship body propulsion, of a stern part 3: a pusher flow discharge part 8 mounted on the rudder body 7: and a rudder support part 9 wherein the rudder body 7 is rotatably mounted on the stern part 3. The rudder body 7 and the pusher flow discharge part 8 mounted thereon form, for example, a cylinder body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rudder device for a ship or the like used to change the traveling direction of the ship or the like, and particularly when used for a tugboat or a tugboat for a bay or a coast, a high propulsive force, that is, towing. The present invention relates to a rudder device for a ship or the like that gives a force and a pushing force.

[0002]

2. Description of the Related Art Conventionally, the structure of a rudder for changing the direction of a cargo ship, a tanker, a container ship, a fishing boat, a tugboat, etc. has been as follows. That is, as shown in the side view of FIG. 11 and the plan view of FIG. 12, the rudder or rudder 1 was attached to the rear of the screw propeller 4 provided in the stern 3 of the hull 2 of the ship. As the rudder 1, a single plate rudder or a double plate rudder is used, and the single plate rudder is formed by attaching a rudder core member and a rudder arm to a single thick steel plate. The multi-plate rudder is constructed by putting a reinforcing member inside and surrounding the outside in a watertight manner with a steel plate, and the rudder surface outer shape is streamlined.

However, in the above-mentioned single plate rudder, the propelling machine flow A due to the rotation of the propeller 4 flows along the side surface of the rudder 1, but since the reinforcing material is externally attached, the resistance against the water flow is high,
Also, it becomes eddy current or turbulent flow, and the efficiency of using the propelling force by the screw propeller is extremely low, and there is too much waste. Although the multi-plate rudder has a streamlined outer shape of the rudder surface as described above in order to eliminate the drawbacks of the single-plate rudder, the collision of the thruster flow A with the front end 5 of the multi-plate rudder is still avoided. It is not possible. Therefore, there is a big drawback that the main horsepower of the ship is not fully utilized.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, the object of the present invention is to prevent the flow of the thruster flow due to the rotation of the screw propeller from being obstructed, and thus to enhance the propulsion force such as towing force and pushing force. SUMMARY OF THE INVENTION It is an object of the present invention to provide a rudder device for a ship or the like, which has improved steering performance, that is, performance of changing the direction of the ship.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, therefore, in the rudder equipment provided at the stern of a ship or the like, the present invention confronts a propeller for propelling a hull at the stern of the stern, and places the stern behind the propeller. A rudder body provided with a propulsion device flow discharge portion is provided, and the rudder body is rotatably attached. That is, the first aspect of the present invention is, "In the rudder equipment provided in the stern of a ship or the like, the rudder provided in the rear of the stern facing the propeller for propelling the hull of the stern, and the rudder provided in the rudder. A rudder device for a ship or the like, comprising a propulsion device flow discharge part and a rudder support part for rotatably attaching the rudder to the stern part. The second invention is "the stern part of the ship or the like". In the rudder equipment provided in the rudder, the rudder is provided at the rear of the stern facing the propeller for propelling the hull, the propulsion device discharge portion provided at the rudder, and the rudder at the stern. And a rudder support portion rotatably attached to the stern through a top pot metal at the tip of the top material and a bottom pot metal at the tip of the shoe piece.

A third aspect of the present invention is, "In a rudder facility provided in a stern part of a ship or the like, a rudder provided behind the propeller for propelling a hull of the stern part behind the propeller, and the rudder provided in the rudder. And a rudder support part that rotatably attaches the rudder body to the stern part via a top point metal at the top material tip of the stern and a bottom point metal at the tip of the shoe piece, and The rudder and the propulsion device flow discharge portion provided therein are cylindrical bodies, and a fourth invention is "rudder equipment provided at the stern of a ship or the like." A steering body provided behind the propeller at the stern portion thereof, a propulsion unit flow discharge portion provided at the steering body, the steering body at the stern portion, and a top pot metal and shoe of the top material tip. Rudder that is rotatably attached via the bottom pot metal at the tip of the piece And a lifting portion, the steering member is a portion of circular cross section and a vertical plane, and a rudder device such as vessels, wherein "said thruster flow discharge section is circular in cross section.

A fifth aspect of the present invention is, "In the rudder equipment provided in the stern part of a ship or the like, a rudder provided behind the propeller of the stern part and a thruster flow provided in the rudder. A discharge part and a rudder support part that rotatably attaches the rudder to the stern of the stern through a top pot metal at the tip of the top member and a bottom pot metal at the tip of the shoe piece, and the rudder has an elliptical cross section. And a propulsion device discharge part having a circular cross section, the sixth aspect of the present invention is a rudder device for a vessel or the like.
A rudder provided at the rear of the stern facing the propeller, a propulsion device discharge section provided on the rudder, the rudder being the stern, and the top point metal and shoe piece of the top material tip thereof. A rudder for a ship, etc., characterized by comprising a rudder support part rotatably mounted through a bottom pot metal at the tip, and the rudder body and the propulsion device flow discharge part provided therein are square tubular bodies. Device ".

A seventh aspect of the present invention is, "In the rudder equipment provided at the stern part of a ship or the like, each rudder body provided behind each of the plurality of propellers at the stern part and provided at the rudder body. And a rudder support part that rotatably attaches each of the rudder bodies to the stern part via the top point metal at the top material tip of the stern and the bottom point metal at the tip of the shoe piece. Rudder device for ships, etc.
An eighth aspect of the present invention is, "In a rudder facility provided in a stern part of a ship or the like, a hanging rudder body provided behind the propeller of the stern part and a thruster flow discharge part provided in the rudder body. And a rudder support portion that rotatably attaches the rudder to the stern portion via a top pot metal at the tip of the top material of the stern portion.

[0009]

With the rudder device for a ship according to the present invention, the rudder behind it does not obstruct the flow of the propulsion device flow due to the rotation of the screw propeller at the stern of the ship. That is, the propulsion stream flows through the propulsion stream discharge. Therefore, the main engine horsepower in the tugboat or the push boat is not lost, and the propulsive force such as the towing force and the pushing force is increased. The steering effect was improved and was good, that is, the performance of changing the direction of the ship was improved, and the effect was particularly remarkable when towing. Further, since it has a relatively uncomplicated structure as described above, it can be easily designed, constructed and manufactured and can be constructed or modified at low cost.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a rudder device for a ship or the like of the present invention will be described in detail as follows with reference to the drawings. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 5 show the first embodiment of the rudder device for ships and the like according to the present invention. 1 is a side view of a ship equipped with a rudder device such as a ship of the present invention, FIG. 2 is a partially cutaway plan view thereof, and FIG.
FIG. 4 is a side view of a main portion of a steering device for a ship or the like according to the present invention, FIG. 4 is a front view thereof, and FIG. 5 is a perspective view thereof.

The rudder device 6 of this ship or the like is composed of a rudder 7, a propulsion device flow discharge part 8, a rudder support part 9, etc., and the rudder device 6 is provided in the stern part 3 of the hull 2 of the ship or the like. The rudder 7 is formed in a cylindrical shape, for example, a round pipe shape. When a cylindrical body is used for the rudder body 7 as described above, the thruster flow discharge portion 8 forming the inner cylinder is also formed in a cylindrical shape at the same time. The rudder body 7 is provided so as to face the screw propeller 4 for propelling the hull of the stern portion 3 and to the rear of the propeller flow discharge portion 8 thereof. Therefore, the thruster flow A due to the rotation of the screw propeller 4 when the hull is moving forward
Of at least most of this flow through this thruster flow discharge 8. The resistance to water flow is low because no significant eddy current is generated as in the single plate rudder and the double plate rudder. The rudder body 7 is rotatably attached to the stern portion 3 by a rudder support portion 9 via a top pot metal 11 of a top material tip 10 of the stern portion 3 and a bottom pot metal 13 of the tip of the shoe piece 12.

FIG. 6 is a perspective view showing another embodiment 2 of the rudder device for ships and the like according to the present invention. This rudder device 6 is provided in the stern part of the hull of a ship or the like, as described above. The rudder device 6 of this ship or the like is composed of a rudder 7, a propulsion device flow discharge portion 8, a rudder support portion 9 and a fin portion 14. The fin portion 14 has a vertical surface and is provided, for example, at the upper and lower sides, but it is also possible to provide only one of the upper and lower sides. At least most of the thruster flow A due to the rotation of the screw propeller 4 during the forward movement of the hull flows through the thruster flow discharge portion 8. The resistance to water flow is low because no significant eddy current is generated as in the single plate rudder and the double plate rudder. The rudder body 7 is rotatably attached to the stern portion 3 by a rudder support portion 9 via a top pot metal 11 of a top material tip 10 of the stern portion 3 and a bottom pot metal 13 of the tip of the shoe piece 12.

FIG. 7 is a perspective view showing a third embodiment of the steering apparatus for ships and the like according to the present invention. This rudder device 6 is also provided at the stern of the hull of a ship or the like. The rudder device 6 of this ship or the like includes a rectangular tubular rudder body 7, a rectangular tubular propulsion device flow discharge portion 8, and a rudder support portion 9. At least most of the thruster flow A due to the rotation of the screw propeller 4 during forward movement of the hull does not cause significant swirl or the like as in the single-plate rudder and the double-plate rudder passing through the propulsion device flow discharge portion 8, and therefore the water flow is prevented. The resistance is low. The above-mentioned rectangular tubular rudder body 7 is rotatably attached to the stern portion 3 by the rudder support portion 9 via the top pot metal 11 of the top material tip 10 of the stern portion 3 and the bottom pot metal 13 of the tip of the shoe piece 12. To be

FIG. 8 is a perspective view showing a fourth embodiment of the steering apparatus for ships and the like according to the present invention. This rudder device 6 is also provided at the stern of the hull of a ship or the like. In the rudder device 6 of this ship or the like, the rudder body has an elliptical cross section, and the propulsion device discharge portion has a circular cross section. At least most of the thruster flow A due to the rotation of the screw propeller 4 when the hull moves forward passes through the thruster flow discharge portion 8. The resistance to water flow is low because no significant eddy current is generated as in the single plate rudder and the double plate rudder. The above-mentioned rectangular tubular rudder body 7 is rotatably attached to the stern portion 3 by the rudder support portion 9 via the top pot metal 11 of the top material tip 10 of the stern portion 3 and the bottom pot metal 13 of the tip of the shoe piece 12. To be

FIG. 9 is a side view of the stern part of a ship, showing a fifth embodiment of the steering device for ships and the like according to the present invention. The rudder device 6 is also provided in the stern part 3 of a hull of a ship or the like, and the rudder device 6 of the ship or the like is provided with a hanging rudder body 7 which is provided behind the propeller 4 of the stern part 3 so as to face the propeller 4. The rudder body 7 is provided with a propulsion device flow discharge portion and a rudder support portion which rotatably hangs the rudder body on the stern portion via a top point metal at the tip of the stern top material. The thruster flow discharge part 8 has a circular cross section. At least most of the thruster flow A due to the rotation of the screw propeller 4 when the hull moves forward passes through the thruster flow discharge portion 8. The resistance to water flow is low because no significant eddy current is generated as in the single plate rudder and the double plate rudder.

FIG. 10 shows a sixth embodiment of the steering apparatus for ships and the like according to the present invention. FIG. 10 is a plan view of an example ship. Cylindrical rudder bodies 7 that are provided behind the two propellers 4 of the stern portion 3 of the hull 2 respectively,
The propulsion device flow discharge part 8 provided in the rudder 7 and the respective rudder 7 can be freely rotated to the stern through the top abutment metal at the tip of each top material of the stern 3 and the bottom abutment metal at the tip of the shoe piece. And each rudder support portion 9 attached to the. At least most of the thruster flow A due to the rotation of the screw propeller 4 during the forward movement of the hull flows through the thruster flow discharge portion 8.

[0017]

Since the rudder device for a ship or the like according to the present invention is configured as described above, the rudder located behind the flow of the propulsion device due to the rotation of the screw propeller at the stern of the ship. There is no hindrance. That is, the thruster flow generated by the rotation flows through the thruster flow discharge portion of the rudder. Therefore, the main engine horsepower in a tugboat or a push boat is not lost, and the propulsive force such as the towing force or the pushing force is increased by this. The steering effect was good, that is, the performance of changing the direction of the ship was improved, and the effect was particularly remarkable when towing. Further, since it has a relatively uncomplicated structure, it can be easily designed, constructed and manufactured, and can be constructed or modified at low cost, which is a significant industrial effect.

[Brief description of drawings]

FIG. 1 is a side view of a ship equipped with an embodiment of a steering device for a ship or the like according to the present invention.

FIG. 2 is a plan view of a partial cutout of a ship equipped with an embodiment of a steering device for a ship or the like of the present invention.

FIG. 3 is a side view of a main portion of an embodiment of a steering device for a ship or the like according to the present invention.

FIG. 4 is a front view of a main portion of an embodiment of a steering device for a ship or the like according to the present invention.

FIG. 5 is a perspective view of an embodiment of a steering device for a ship or the like according to the present invention.

FIG. 6 is a perspective view of another embodiment of the steering apparatus for a ship or the like according to the present invention.

FIG. 7 is a perspective view of a third embodiment of a steering device for a ship or the like according to the present invention.

FIG. 8 is a perspective view of a fourth embodiment of a steering device for ships and the like according to the present invention.

FIG. 9 is a side view of a stern equipped with a fifth embodiment of a steering device for a ship or the like according to the present invention.

FIG. 10 is a plan view of a vessel equipped with a sixth embodiment of a steering apparatus for vessels and the like according to the present invention.

FIG. 11 is a side view of a conventional rudder vessel.

FIG. 12 is a plan view of a conventional rudder vessel.

[Explanation of symbols]

1: Rudder or rudder 2: Hull 3: Stern part 4: Screw
Propeller 5: Front tip of multi-plate rudder 6: Rudder device such as ship 7: Rudder body 8: Propulsion device discharge section 9: Rudder support section 10: Top material tip 11: Top point metal 12: Shoe piece 13: Bottom point Fri 14: Fin part

Claims (8)

[Claims] 1. In a rudder facility provided in the stern of a ship or the like, a rudder provided behind the propeller for propelling a hull at the stern of the stern, and a thruster flow discharge provided in the rudder. And a rudder support part that rotatably attaches the rudder to the stern part of the ship. 2. A rudder facility provided in the stern of a ship or the like, wherein a rudder provided in the rear of the stern facing the propeller for propelling the hull of the stern, and a thruster flow discharge provided in the rudder. And a rudder support part that rotatably attaches the rudder to the stern part via a top point metal at the top material tip of the stern and a bottom point metal at the tip of the shoe piece. Rudder device. 3. In a rudder facility provided in the stern of a ship or the like, a rudder provided behind the propeller for propelling a hull at the stern of the stern, and a thruster flow discharge provided in the rudder. And a rudder support part that rotatably attaches the rudder to the stern through the top abutment gold at the tip of the top material of the stern and the bottom abutment gold at the tip of the shoe piece, and the rudder and the rudder A rudder device for a ship or the like, characterized in that the provided propulsion device discharge part is a cylindrical body. 4. A rudder facility provided in the stern part of a ship or the like, wherein a rudder body is provided behind the propeller at the stern part, and behind the propeller, and a thruster flow discharge part provided in the rudder body, The rudder is provided with a rudder support portion rotatably attached to the stern of the stern through a top abutment metal at the tip of the top material and a bottom abutment metal at the tip of the shoe piece, and the rudder has a circular cross section and a vertical surface. And a thruster flow discharge portion having a circular cross section. 5. A rudder facility provided at the stern of a ship or the like, wherein a rudder is provided at the rear of the stern so as to face the propeller, and a propulsion device discharge portion provided at the rudder. The rudder is provided at the stern part with a rudder support portion rotatably attached via a top pot metal at the tip of the top material and a bottom pot metal at the tip of the shoe piece, and the rudder has an elliptical cross section, and the propulsion is provided. A rudder device for ships and the like, characterized in that the instrumental discharge portion has a circular cross section. 6. A rudder facility provided in the stern part of a ship or the like, wherein a rudder body provided behind the propeller of the stern part, behind the propeller, and a thruster flow discharge part provided in the rudder body, The rudder is provided with a rudder support part rotatably attached to the stern of the stern through a top abutment metal at the tip of the top material and a bottom abutment metal at the tip of the shoe piece, and the rudder and the propulsion device flow provided therein. A rudder device for a ship or the like, characterized in that the discharge part is a rectangular tube. 7. Rudder equipment provided in the stern part of a ship or the like, in the stern part of the stern part, facing each of a plurality of propellers behind the respective rudder, and a thruster flow discharge provided in the rudder. And a rudder support part that rotatably attaches each of the rudder bodies to the stern part via a top point metal at the top material tip of the stern and a bottom point metal at the tip of the shoe piece. Rudder device such as. 8. In a rudder facility provided in the stern of a ship or the like, a hanging rudder provided behind the propeller of the stern and behind the propeller, and a propulsion device flow discharge part provided in the rudder, A rudder device for a ship or the like, comprising: a rudder support part that rotatably attaches the rudder to the stern part via a top point metal at the tip of the stern part top material.