JP2000053074A - Machinery fitting structure for ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ship machinery fitting structure capable of improving the assembling workability of an engine and a propeller. SOLUTION: An engine 10 and a propeller 11 driven by the engine 10 are mounted on a common base plate 9, and a machinery fitting unit 3 is provided separately from a ship body 2 and fitted to the ship body 2. Since the engine 10 and the propeller 11 are mounted on the common base plate 9 and the machinery fitting unit 3 is provided separately from the ship body 2 and fitted to the ship body 2 posteriorly, the engine 10 and the propeller 11 are mounted on the base plate 9 in a wide space separate from the ship body 2 with good workability and accuracy, and assembling workability is greatly improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine outfitting structure for a watercraft in which an engine including an engine and a propulsion device driven by the engine is mounted on a hull.

[0002]

2. Description of the Related Art In a boat equipped with an engine and a propulsion device driven by the engine, the engine and the propulsion device are separately assembled to a hull later.

[0003]

However, it is not easy to assemble the engine and the propulsion unit individually and with high precision in a narrow space of the hull as in the prior art.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide an engine outfitting structure for a boat which can improve the workability of assembling an engine and a propulsion device. .

[0005]

In order to achieve the above object, according to the first aspect of the present invention, an engine and a propulsion device driven by the engine are mounted on a common base plate and an engine outfitting unit is separated from a hull. The engine outfitting unit is attached to a hull.

According to a second aspect of the present invention, in the first aspect, the engine outfitting unit is detachably attached to a hull.

According to a third aspect of the present invention, in the first or second aspect of the invention, the base plate constitutes a ship bottom.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the rear end of the base plate is raised to form a stern plate.

According to a fifth aspect of the present invention, in the first to third or fourth aspects of the present invention, a pump chamber for accommodating the impeller housing of the propulsion unit is constituted by the base plate.

According to a sixth aspect of the present invention, in the first to fourth or fifth aspects, a bulkhead for supporting a bearing of a propulsion shaft for transmitting power from the engine to a propulsion unit is fixed to the base plate. Features.

According to a seventh aspect of the present invention, in the first to fifth or sixth aspects of the present invention, a joint portion of the base plate with the hull is disposed on a slope portion outside a flat keel portion. .

Therefore, according to the present invention described in claim 1,
The engine and propulsion unit were mounted on a common base plate and the engine outfitting unit was configured separately from the hull, and this engine outfitting unit was retrofitted to the hull. The engine and the propulsion unit can be assembled with good workability and high accuracy, and the workability of assembly can be significantly improved. still,
The present invention includes the case where the engine outfitting unit is bonded to the hull.

According to the second aspect of the present invention, the engine outfitting unit is detachably attached to the hull.
When performing a large-scale inspection and maintenance of the engine and the propulsion unit, the engine outfitting unit can be removed from the hull, and the inspection and maintenance can be easily performed with good workability.

According to the third aspect of the present invention, since the base plate forms the bottom of the ship, the number of parts can be reduced and the weight can be reduced.

According to the present invention, the rear end of the base plate is raised to form the stern plate, so that the rigidity of the base plate itself is increased.

According to the fifth aspect of the present invention, since the pump chamber accommodating the impeller housing of the propulsion unit is constituted by the base plate, a box-shaped portion is formed in the base plate, thereby increasing the rigidity of the base plate.

According to the present invention, since the bulkhead supporting the bearing of the propulsion shaft for transmitting power from the engine to the propulsion unit is fixed to the base plate, the torsional rigidity of the base plate is increased by the bulkhead.

According to the present invention, since the joint of the base plate and the hull is disposed on the slope outside the flat keel, the joint is formed even when the boat is lifted to the sandy beach. Does not touch the sandy beach, and the joint can be effectively protected.

[0019]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a cutaway plan view of a boat (Japanese boat) provided with an engine outfitting structure according to the present invention, FIG. 2 is a cutaway side view of an engine outfitting unit of the boat, and FIG. FIG. 4 is a half sectional view of an engine mount portion of a hull,
FIG. 5 is an enlarged detail view of a portion A in FIG.

The boat 1 shown in FIG. 1 is a Japanese boat,
At the rear of the hull (hull) 2 made of RP (fiber reinforced plastic), an engine outfitting unit 3 that is configured separately from the hull 2 is detachably attached at the center in the width direction. A steering box 4 is disposed in front of the engine outfitting unit 3 of the hull 2 (in the direction of the arrow in FIG. 1) (to the right toward the front), and a steering wheel 5 is installed in the steering box 4. I have. FIG.
, 6 is a remote control device.

On the left side of the engine outfitting unit 3 of the hull 2, a fuel tank 7 and an oil tank 8 are arranged in front and rear.

Here, the configuration of the engine outfitting unit 3 will be described in detail with reference to FIGS.

The engine outfitting unit 3 mounts an engine 10 as a drive source, a propulsion device 11 and the like driven by the engine 10 on a common base plate 9 having a substantially rectangular shape in plan view, and is separate from the hull 2. Is configured.

The base plate 9 is integrally formed of FRP. As shown in FIG. 2, the horizontal portion 9a forms a part of the bottom of the hull 2 connected to the bottom of the hull 2.
The rear end portion 9b rises obliquely upward toward the rear to form a stern board (transom). Since the base plate 9 forms a part of the bottom of the ship, the number of parts is reduced and the weight is reduced. Further, since the rear end portion 9b of the base plate 9 constitutes the stern plate, the rigidity of the base plate 9 itself is increased.

On the front half of the base plate 9, a pair of left and right engine beds 12, which are long in the front-rear direction, are fixed (adhered) in parallel to each other, and the engine 10 is mounted on these engine beds 12. It is elastically mounted via a total of four mount rubbers 13 in front, rear, left and right. The engine 10 includes a crankshaft 14 disposed in the front-rear direction. The crankshaft 14 extends rearward from the center in the width direction of the rear end surface of the engine 10.

A bulkhead 15 in the form of a rectangular plate is erected (adhered) in the width direction at the rear of the engine 10 on the base plate 9 and substantially at the center of the base plate 9 in the front-rear direction. The propulsion device 11 is mounted on the base plate 9 behind the reference numeral 15.

As shown in FIG. 2, the rear half of the propulsion unit 11 is housed in a pump chamber 16 formed at the bottom of the rear end of the hull 2 by a part of the base plate 9, and an impeller housing 17 is provided. An impeller shaft 18 which is a propulsion shaft arranged coaxially with the crankshaft 14 of the engine 10 in the front-rear direction faces the inside. This impeller shaft 18
Has a front portion rotatably supported by a bearing 19 supported by the bulkhead 15, and a front end portion thereof is connected to the crankshaft 14 by a coupling 20.
A rear end of the impeller shaft 18 facing the inside of the impeller housing 17 is connected to an impeller (not shown) for generating a propulsive force.

By the way, the impeller housing 17
Is connected to a suction duct 21 having a water suction port opened to the bottom of the ship, and is fixed to the pump chamber 16 so that a front end surface thereof is in contact with a front wall of the pump chamber 16. A discharge nozzle 22 narrowed rearward is connected to the impeller housing 17.

The upper half of the suction duct 21 is constituted by a part of the base plate 9, and the lower half is formed by the metal member 2.
3. A steering nozzle 24 is attached to the rear end of the discharge nozzle 22 so as to swing left and right, and a reverse bucket 25 is attached to the steering nozzle 24 so as to swing vertically. The steering nozzle 24 is linked to the steering handle 5 (see FIG. 1) via a steering cable 26 (see FIG. 3), and the reverse bucket 25 is provided on the steering box 4 (see FIG. 1). And a reverse lever (not shown) via a reverse cable 27 (see FIG. 2).

On the other hand, as shown in FIG. 3, a water lock 28 in the form of a rectangular box is provided on the base plate 9 on the left side of the propulsion unit 11.
An exhaust pipe 29 leading forward from the exhaust system 0 is bent in a horizontal U-shape and extends rearward, and its extending end is connected to the front end surface of the water lock 28. An exhaust hose 30 extends upward from the rear upper surface of the water lock 28. The exhaust hose 30 is bent to the right and extends to the right across the upper part of the propulsion device 11, and is folded back therefrom. An end of the lever is opened to the side of the pump chamber 16 as an exhaust port 30a (see FIG. 2).

Next, a structure for mounting the engine outfitting unit 3 having the above-described structure to the hull 2 will be described.

As shown in FIG. 1, a notch 2a having a substantially rectangular shape in plan view is formed at the rear end of the hull 2, and the engine outfitting unit 3 is attached to the hull 2 so as to cover the notch 2a. Can be

That is, both side edges of the base plate 9 of the engine outfitting unit 3 are overlaid on both side edges of the notch 2a of the hull 2, as shown in FIGS. By tightening nuts 33 which are screwed into screws 32 which are inserted from below into the joints with the material 31 interposed, a plurality of locations on both side edges of the base plate 9 are attached to both side edges of the notch 2 a of the hull 2.

By the way, as shown in FIG. 4, the joints of the side edges of the base plate 9 to the hull 2 are arranged on a slope portion outside the flat keel portion which forms a horizontal flat surface. With this configuration, even when the boat 1 is lifted to the sandy beach, the joint does not touch the sandy beach, and the joint can be effectively protected.
FIG. 4 shows only the joining structure on one side (left side) of the base plate 9, but the joining structure on the other side (right side) is the same, so that the illustration of this is omitted.

The front edge of the base plate 9 and the edge of the rear end 9b constituting the stern plate are superimposed on the periphery of the notch 2a of the hull 2 as shown in FIG. It is attached to the hull 2 by a plurality of screws and nuts by an attachment structure similar to that shown in FIG.

Further, the base plate 9 is shown in FIG. 5 by a plurality of screws and nuts at the point c shown in FIG. 3 at both side edges of the bulkhead 15 erected on the bulkhead 34 on the hull 2 side. It is attached to the hull 2 by being attached by the same attachment structure as the above.

By attaching the base plate 9 to the hull 2 as described above, the engine outfitting unit 3 is attached to the hull 2 as a whole.

Here, the boat 1 is assembled according to the following procedure.

The hull 2 and the base plate 9 are formed independently. The engine bed 12 and the bulkhead 15 are bonded to the base plate 9. The engine 10 and the propulsion device 11 are mounted on the base plate 9. At this time, the setting of the engine 10 and the propulsion device 11 is performed, for example, the coaxiality between the crankshaft 14 and the impeller shaft 18 of the engine 10 is determined. The water lock 28 is assembled on the base plate 9 and piping such as the exhaust pipe 29 is performed to complete the engine outfitting unit 3. The engine outfitting unit 3 is attached to the hull 2. After performing outfitting, wiring and piping, painting is completed. As described above, in the hull 1 according to the present embodiment,
Engine 10 and propulsion device 11 on common base plate 9
And the engine outfitting unit 3 is configured separately from the hull 2, and the engine outfitting unit 3 is retrofitted to the hull 2. The engine 10 and the propulsion device 11 can be mounted on the base plate 9 in a wide space with good workability and high accuracy, and the workability of the work can be remarkably improved.

When performing a large-scale inspection and maintenance of the engine 10 and the propulsion unit 11, the engine outfitting unit 3 is attached to the hull 2.
The inspection and maintenance of the engine 10 and the propulsion device 11 can be easily performed with good workability.

Further, in the present embodiment, since the pump chamber 16 accommodating the impeller housing 17 of the propulsion device 11 and a part of the suction duct 21 are constituted by a part of the base plate 9, a box-shaped part is formed on the base plate 9. Thus, the rigidity of the base plate 9 is increased.

In the present embodiment, the impeller shaft 1
Since the bulkhead 15 supporting the bearings 8 is fixed to the base plate 9, the torsional rigidity of the base plate 9 is increased by the bulkhead 15.

[0044]

As is apparent from the above description, claim 1
According to the described invention, the engine and the propulsion unit are mounted on a common base plate to configure the engine outfitting unit separately from the hull, and the engine outfitting unit is retrofitted to the hull. The engine and the propulsion device can be mounted on the base plate with high workability and high accuracy in another large space, and the workability of the mounting operation can be remarkably improved.

According to the second aspect of the present invention, since the engine outfitting unit is detachably attached to the hull,
When performing a large-scale inspection and maintenance of the engine and the propulsion unit, the engine outfitting unit can be removed from the hull, and the inspection and maintenance can be easily performed with good workability.

According to the third aspect of the present invention, since the base plate forms the bottom of the ship, the number of parts can be reduced and the weight can be reduced.

According to the present invention, the rear end of the base plate is raised to form the stern plate, so that the rigidity of the base plate itself is increased.

According to the fifth aspect of the present invention, since the pump chamber accommodating the impeller housing of the propulsion unit is constituted by the base plate, a box-shaped portion is formed on the base plate, thereby increasing the rigidity of the base plate.

According to the present invention, since the bulkhead supporting the bearing of the propulsion shaft for transmitting power from the engine to the propulsion unit is fixed to the base plate, the torsional rigidity of the base plate is increased by the bulkhead.

According to the present invention, since the joint of the base plate and the hull is disposed on the slope outside the flat keel, the joint is formed even when the boat is lifted to the sandy beach. Does not touch the sandy beach, and the joint can be effectively protected.

[Brief description of the drawings]

FIG. 1 is a cutaway plan view of a boat (Japanese boat) provided with an engine outfitting structure according to the present invention.

FIG. 2 is a cutaway side view of an engine outfitting unit of a boat (Japanese boat) provided with the engine outfitting structure according to the present invention.

FIG. 3 is a cutaway side view of an engine outfitting unit of a boat (Japanese boat) provided with the engine outfitting structure according to the present invention.

FIG. 4 is a half sectional view of an engine mount portion of a hull of a boat (Japanese boat) provided with the engine outfitting structure according to the present invention.

FIG. 5 is an enlarged detail view of a portion A in FIG. 4;

[Explanation of symbols]

 Reference Signs List 1 boat 2 hull 3 engine outfitting unit 9 base plate 9a base plate horizontal part (ship bottom) 9b base plate rear end part (stern plate) 10 engine 11 propulsion unit 15 bulkhead 16 pump room 17 impeller housing 18 impeller shaft (propulsion shaft) 19 bearing

Claims (7)

[Claims] An engine and a propulsion device driven by the engine are mounted on a common base plate to form an engine outfitting unit separate from the hull, and the engine outfitting unit is mounted on the hull. Engine outfitting structure for boats. 2. The engine outfitting structure for a boat according to claim 1, wherein said engine outfitting unit is detachably attached to a hull. 3. The engine outfitting structure for a boat according to claim 1, wherein the base plate forms a bottom of the boat. 4. The engine outfitting structure for a boat according to claim 3, wherein a rear end portion of the base plate is raised to form a stern plate. 5. The engine outfitting structure for a boat according to claim 1, wherein a pump chamber for accommodating an impeller housing of the propulsion unit is constituted by the base plate. 6. A bulkhead for supporting a bearing of a propulsion shaft for transmitting power from the engine to a propulsion unit is fixed to the base plate.
The engine outfitting structure of the hull described. 7. The engine outfitting structure for a boat according to claim 1, wherein the joint portion of the base plate with the hull is disposed on a slope portion outside the flat keel portion.