JP2000053094A - Vessel equipped with outboard engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vessel equipped with an outboard engine capable of automatically hold a vessel position by a relatively low priced device without stirring water in a wide range. SOLUTION: An underwater investigation vessel having a steering supporting device employing a GPS in a steering chamber is provided with outboard engines 4 in two places, bow and stern sides, and a vessel position is held by using these outboard engines 4. Each outboard engine 4 is supported to be turned up to a specified maximum turning angle (e.g. about 270 deg. where a fuel hose is not entangled) via a turntable 5, driven for turning by a steering motor 6 via a gear mechanism, and its turning angle is detected by a rotary encoder 8 via the same gear mechanism. The outboard engine 4 is turned/driven by being linked with the steering supporting device. The base end side of the turntable 5 is connected by a hinge to a supporting plate 9A fixed to a vessel body, and its tip side and a pair of left and right tilt-up device (motor) 10A fixed on the supporting plate 9A are connected by a pair of linking rods.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ship with an outboard motor capable of holding the position of a hull (hereinafter referred to as "holding position") for the purpose of investigating water quality (underwater) of the sea or lake.

[0002]

2. Description of the Related Art In an underwater survey ship for examining the water quality of the sea or lake, it is necessary to survey the underwater at a certain point in time series, so that a function of maintaining the position of the ship is indispensable.

[0003] As an underwater investigation ship having the function of maintaining the position of a ship, there is a conventional one shown in, for example, Figs.
FIG. 5 shows a case in which the propeller 100 is driven to maintain the ship's position by using a rudder 101 and a thruster 102 provided on the bow side, and FIG. 6 shows two positions on the bow side and the stern side. 360 ° rotating propeller (jet pump) 10
3 is used to maintain the ship's position.

[0004]

However, in the apparatus shown in FIG. 5, the thrust generating direction (propeller 100 and thruster 102) is fixed, so that the thrust generating direction is limited, and Very difficult and thruster
Since the 102 penetrated the hull in the left-right (width) direction, there was a problem that the structure became large.

On the other hand, the one shown in FIG. 6 uses a 360 ° swivel propeller (jet pump) 103 to maintain a ship's position easily, but uses an expensive special device (360 ° swivel propeller 103) which has no need for other uses. Since it is necessary and agitates the water around the hull, there is a problem in that it is unsuitable for use in a water quality survey boat.

Further, both of those shown in FIG. 5 and FIG. 6 have the drawbacks that since they both manually maintain the ship's position, they require skill and the labor load on the occupant is large.

SUMMARY OF THE INVENTION An object of the present invention is to provide a boat with an outboard motor that can automatically maintain the position of the boat with a relatively inexpensive apparatus without stirring water over a wide area.

[0008]

A boat with an outboard motor according to the present invention for achieving the above object is characterized in that the outboard motor is rotatably provided via a turntable.

Further, the outboard motor is provided at two locations on a bow side and a stern side.

[0010] The outboard motor can be stored on the water surface at every turntable.

Further, the outboard motor is turned in conjunction with a satellite-based positioning system.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a ship with an outboard motor according to the present invention will be described in detail using embodiments with reference to the drawings.

FIG. 1 is a perspective view showing an outboard motor and its surroundings, showing a first embodiment of the present invention, FIG. 2 is an operation state diagram of FIG. 1, and FIG. 4 is a plan view of a water quality research boat. It is.

In FIG. 4, reference numeral 1 denotes an underwater survey boat equipped with various devices (not shown) for water quality survey, and its steering room 2 employs a satellite-based positioning system such as a GPS (Global Positioning System). A ship maneuvering support device 3 is provided.

The underwater survey boat 1 is provided with outboard motors 4 at two locations, a bow side and a stern side, and the outboard motors 4 can be used to maintain the position of the boat.

As shown in FIG. 1, the outboard motor 4 is rotatably supported through a turntable 5 to a predetermined maximum turning angle (for example, about 270 ° where the fuel hose is not entangled). The rotary drive is performed via the gear mechanism 7 and the rotary angle is also detected by the rotary encoder 8 via the gear mechanism 7.

The turntable 5 is hinged to a support plate 9 whose base end is fixed to the hull (not shown).
At the same time, the tip side and a pair of left and right tilt-up devices (motors) 10 fixed on the support plate 9 are connected by a pair of left and right link rods 11.

Therefore, when the outboard motor 4 is not in use, the tilt-up device 10 is operated to move the outboard motor 4 from the operating state shown in FIG. 1 to the retracted state shown in FIG. It can be raised anyway.

The outboard motor 4 is turned and driven in conjunction with the marine vessel maneuvering support device 3.

With this configuration, during normal navigation, only the outboard motor 4 on the stern side is operated to obtain thrust, while the outboard motor 4 on the bow side provides resistance during navigation. As described above, the tilt-up device 10 is operated to move to the retracted state shown in FIG.

On the other hand, at the time of water quality survey at a fixed point, both outboard motors 4 on the bow side and the stern side are put in the operating state shown in FIG. Set to work with the positioning system.

Thus, even if the ship's position is swept by the tide or wind, the respective steering motors 6 are automatically operated, and the respective turntables 5 are turned to a predetermined angle by the detection signals from the respective rotary encoders 8 for detecting the steering angle. Turns, and each outboard motor 4 operates with a predetermined thrust, thereby returning the hull to the original position.

As described above, in the present embodiment, the outboard motor 4 is used as it is for maintaining the position of the boat, so that the position of the boat can be maintained only by gently stirring the water locally, which does not greatly affect the water quality survey. Absent.

The turntable 5 uses a turning mechanism used for a power shovel or the like.
Parts are relatively inexpensive and parts are easily available.

[Second Embodiment] FIG. 3 is a perspective view showing an outboard motor and its surroundings, showing a second embodiment of the present invention.

In the first embodiment, the turntable 5 (outboard motor 4) in the first embodiment is tilted up and stored, but is driven by a pair of left and right motors 10A on the turntable 5 via a gear mechanism 12. This is an example in which a support column 9A fixed to a hull is lifted vertically and stored.

Also in this case, the function of holding the boat position can be obtained in the same manner as in the first embodiment.

In each of the above-described embodiments, the outboard motors 4 are provided at the bow side and the stern side. A thrust generator other than the outboard motor 4 (having a turning angle of about 70 °) or an outboard motor may be provided.

[0029]

According to the first aspect of the present invention, the outboard motor is rotatably provided via the turntable, so that the position of the outboard motor can be easily maintained by a low-cost device without agitating the surrounding water area over a wide range. Can be.

According to the second aspect of the present invention, since the outboard motor is provided at two locations on the bow side and the stern side, the position of the outboard motor can be efficiently and easily maintained.

According to the third aspect of the present invention, since the outboard motor can be stored on the water surface for each turntable, it does not become an obstacle (resistance) during normal navigation.

According to the fourth aspect of the present invention, since the outboard motor is turned in conjunction with the satellite-based positioning system, the position of the outboard motor can be accurately and automatically maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the periphery of an outboard motor, showing a first embodiment of the present invention.

FIG. 2 is an operation state diagram of FIG.

FIG. 3 is a perspective view around an outboard motor, showing a second embodiment of the present invention.

FIG. 4 is a plan view of the water quality research ship.

FIG. 5 is a side view of a conventional example.

FIG. 6 is a side view of a different conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 underwater research boat 2 wheelhouse 3 steering support device 4 outboard motor 5 turntable 6 steering motor 7 gear mechanism 8 rotary encoder 9 support plate 10 tilt-up device 10A motor 11 link rod 12 gear mechanism

Claims (4)

[Claims] 1. An outboard motor-equipped marine vessel, comprising: an outboard motor rotatable via a turntable. 2. The marine vessel with an outboard motor according to claim 1, wherein the outboard motor is provided at two locations on a bow side and a stern side. 3. The marine vessel with an outboard motor according to claim 1, wherein the outboard motor can be stored on the water surface every turntable. 4. The ship with an outboard motor according to claim 1, wherein the outboard motor is turned in conjunction with a satellite-based positioning system.