JPH0478347A - Engine mount structure for water vehicle and the like - Google Patents

Abstract

PURPOSE:To ease aligning work and shorten a work time the excellent transmission efficiency of rotation driving force retained by making constitution in which the fitting fine adjustment of an engine plate can be made with a sorption bolt operated in reversible rotation. CONSTITUTION:When alignment dislocation exists in the shaft axis direction in which an engine 6 to be placed on an engine plate 15 and an unshown impeller shaft are connected, the height of the engine plate 15 can be finely adjusted and alignment work can be simply and easily made by rotating a fitting bolt 30 with a clamp such as a wrench or a spanner etc. with nuts 37 and 38 loosened and with a mounting part 30a polygonally formed or a groove 31 utilized. Also when dislocation exists between left and right mount devices 10 and 10, fine adjustment in the left and right direction can be easily made by moving the end edge part 15b of an engine plate 15 to the mounting part 30a.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) This invention relates to an engine mount structure for a water vehicle, etc., and particularly to a structure that facilitates installation and adjustment when installing an engine in an engine room. It relates to engine mount structures for water vehicles, etc.

(Prior Art) Recently, many of the water vehicles used for water skiing, water bites, etc. are jet-type water jet boats, and their configuration is shown in FIG. 6, for example.

A waterway 2 is formed in a hull 1, and a suction port 2a and a spout 2b open to the bottom and stern of the ship, respectively, and a jet propulsion device 3 is provided within the waterway 2. This jet propulsion device 3 connects an impeller 4 to an engine 6 via an impeller shaft 4a and a coupling 5.
The impeller 4 is rotated by the rotational driving force given from the
The water from the suction port 2a opened at the bottom of the ship is made into a jet stream and is injected from the jet port 2b as shown by arrow A to obtain the propulsion force of the ship body 1.

In a conventional water vehicle, the jet propulsion device 3
The engine 6 that provides rotational driving force to the impeller shaft 4a is installed in the engine room by a mounting device 10 as shown in FIG. 7, for example. This mounting device 10 is made of, for example, glass fiber reinforced plastic (
A mount base 13 is attached to an engine mounting base 12 that is bonded to a bottom plate 11 made of FRP and bent into a raised shape.
An engine plate 15 bent into a dish shape is mounted via a mount body 14 made of rubber. These engine mounting base 12, mount base 13, mount body 14 and engine plate 15
The engine 6 is installed on a mounting device 10 that is integrally configured with the engine 6 and the engine 6. Note that reference numeral 16 denotes a base plate, which is inserted in advance into the engine mounting base 12 as a fitting for the mount base 13.

(Problem to be Solved by the Invention) When installing the engine 6 on the conventional mounting device 10, the shed propulsion device 3 is fixed to the waterway 2, the engine 6 is mounted on the mounting device 10, and these devices 3.10 are mounted. Since they are connected to each other via the coupling 5, alignment of their axes is extremely important. If the engine starts operating with the mutual axes misaligned, the rotational driving force of the engine will not be smoothly transmitted to the impeller shaft, and there is a risk that the jet propulsion device will not be able to obtain the desired propulsive force. For this reason, the mounting device 10 is relatively flexible in adjusting the installation of the engine 6.
development is required. From this point of view, conventionally, when both shafts are misaligned, shims are interposed on the engine plate 15 or the mount body 14 to finely adjust the shaft centering.

However, this fine adjustment is done based on the installation worker's visual sense, including his/her sixth sense, so shims of different thickness must be taken in and out many times and replaced, resulting in large individual differences and an extremely long work time. It takes.

Furthermore, the mount body 14 of the mount device 10 is made of rubber in order to absorb vibrations from the engine 6, but when a shim is inserted, the edge of the engine plate 15 shown in FIG. Because of this, the rubber bolt holes will be misaligned.

Therefore, forcing the bolt into the bolt hole of the rubber causes wear and tear on the rubber, which is undesirable.

This invention was made in consideration of the above-mentioned circumstances, and is intended to be used in water vehicles, etc., in which the engine can be easily installed on a mounting device without impairing the transmission efficiency of rotational driving force from the engine to the jet propulsion device. The purpose is to provide an engine mount structure.

[Structure of the invention]

(Means for Solving the Problems) In order to solve the above-mentioned problems, an engine mount structure for a water vehicle or the like according to the present invention supports the end edge of an engine plate on which an engine is placed with a mounting device, and In an engine mount structure for a water vehicle or the like in which a device is mounted on an engine mounting base in an engine room, a mounting bolt is provided to the mount device by screw connection, and the end edge of the engine plate is held at the engagement portion of the mounting bolt. At the same time, the mounting bolt is reversibly rotated to allow fine adjustment of the mounting of the engine plate.

(Function) According to this engine mount structure for water vehicles, etc., the edge of the engine plate is held by the mounting bolt, so there is no need to insert and remove shims of different thickness on the mount body many times. The mounting position on the mounting device can be adjusted by simply moving the engine plate by operating the mounting bolts. Therefore, the engine and the impeller shaft can be easily connected by coupling, and the centering work time can be shortened.

Further, since the edge portion of the engine plate is configured to be attached to the engagement portion of the attachment bolt, there is no need to align the bolt hole of the mount device and the attachment hole of the engine plate. Therefore, the mount body made of rubber, which is one of the components of the mount device, is not subject to wear and tear, leading to a longer service life.

Furthermore, the mounting bolt that holds the engine plate has a polygonal outer periphery at its engaging part, or a groove is cut into its free end, and these parts are used to reversibly rotate the mounting bolt. This makes it easy to perform delicate centering work between the engine and impeller.

(Example) Hereinafter, an example of an engine mount structure for a water vehicle or the like according to the present invention will be described based on the drawings.

1 to 3 show an engine mount structure for a water vehicle or the like according to the present invention. Note that parts common to those in FIG. 8 are given the same reference numerals.

The engine plate 15 has a horizontal flange-like end edge 15b that is bent to expand from a base 15a, and is formed into a dish-like cross section. The engine 6 is placed on the base portion 15a, while the horizontal edge portion 15b is equipped with bolts 30.
It is removably installed on the mounting device 10 via.

The bolt 30 is provided with a brim-like engaging portion 30a having a polygonal or circular outer periphery in the middle of the shaft. This engaging portion 30a is configured to hold the engine plate 15 with a mounting bolt 30. bolt 3
A groove 31 (a polygonal hole such as a hexagonal hole may be used) is carved in the free end of the hole. The polygonal structure of the groove 31 and the engaging portion 30a is used to finely adjust the height of the mounting position of the engine plate 15.

On the other hand, the mounting device 10 that pivotally supports the mounting bolt 30 is
It is composed of a pressing metal fitting 32 and a base plate 33 that sandwich a dogleg-shaped rubber mount body 14.
The base plate 33 has a tapered inclined support slope on which the mount body 14 is placed, and the mount body 14 is held between the opposing inclined pressing surfaces of the press fitting 32.

A screw hole 34 is formed in the press fitting 32 by utilizing the space of the mount body 14. The base plate 33 is fixed to the mounting base 12 in the engine room with mounting bolts or the like. Incidentally, when the mount body 14 is sandwiched between the press fitting 32 and the base plate 33, a baking adhesive process is used, for example.

According to this engine mount structure, first, the mounting bolt 30 is screwed into the screw hole 34 of the mount device 10 using a spanner or the like, and then the mounting hole of the engine plate 15 is inserted into the threaded portion 30b of the mounting bolt 30. After the engine plate 15 is engaged and supported by the engagement portion 30a, the engine plate 15 is attached to the attachment bolt 30.
The mounting bolt 30 is fixed to the mounting device 10 by tightening the nut 38 inserted into the mounting bolt 30 in advance by tightening the nut 38 through the washer 36.

If misalignment occurs in the axial direction of the shaft that connects the engine 6 placed on the engine plate 15 and the impeller shaft (not shown), loosen the nuts 37 and 38, Attachment part 30a or groove 3
1 by rotating the mounting bolt 30 with a tightening tool such as a wrench or spanner.
5 can be finely adjusted, making centering work simple and easy. In addition, the left and right mounting devices are 10°1
Even if a deviation occurs between 0 and 0, fine adjustments in the left-right direction (width direction) can be easily made by moving the edge portion 15b of the engine plate 15 relative to the engaging portion 30a.

Next, a second embodiment of the engine mount structure for a water vehicle or the like according to the present invention will be described with reference to FIG.

The engine mount structure shown in this embodiment is different from the structure of the mount device 10A shown in FIG. 1, and common parts are given the same reference numerals and explanations will be omitted. This mount device 10A has a rubber mount body 40 sandwiched between a press fitting 41 and a base plate 42,
The mounting device 10 shown in FIG. 1 is not substantially different from the mounting device 10 shown in FIG.

In this mount device 10A, a mount body 40 made of rubber is formed, for example, in the shape of a rectangular block, and a vibration-proof sleeve portion 45 of a press fitting 4°1 is inserted and guided into a hole 44 formed in the center. Ru.

The presence of this sleeve portion 45 can enhance the vibration damping function against vibration in the lateral direction.

A female thread is formed in the sleeve portion 45 of the suppression fitting 41,
The large diameter threaded portion 46a of the two-step stepped bolt 46 is attached to this female thread.
is screwed on. Further, the horizontal edge portion 15b of the engine plate 15 is held by the shoulder portion 47, which is the engagement portion of the stepped bolt 46. The mounting hole 48 formed in the end edge 15b of the engine plate 15 is connected to the small diameter threaded portion 46b of the stepped bolt 46.
inserted into.

The stepped bolt 46 threaded (threaded) to the mounting device 10A is fixed by a nut 50, and the engine plate 15 supported by the shoulder 47 of the stepped bolt 46 is fixed to the nut 52 via the washer 5. It is fixed at. Fine adjustment of the height position of the engine plate 15 can be easily carried out by rotating the stepped bolt 46 with both nuts 50 and 52 loosened, as in the first embodiment.

Further, this engine mount structure has a mount device 1.0 as shown in FIG. Combinations of IOAs may also be used.

〔Effect of the invention〕

As described above, according to the engine mount structure for a water vehicle or the like according to the present invention, the mounting bolt is provided on the mount device by screw connection, and the end edge of the engine plate is held in the engagement portion of the mounting bolt. In addition, by reversibly rotating the mounting bolts, fine adjustment of the mounting of the engine plate can be made, thereby maintaining good transmission efficiency of the rotational driving force from the engine and ensuring that the center line between the engine and the impeller shaft is maintained. The unloading work can be done easily and the work time can be shortened.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an embodiment of an engine mount structure for a water vehicle or the like according to the present invention, Fig. 2 is a partial sectional view showing the main parts of the engine mount structure, and Fig. 3 is a diagram showing ■-■ in Fig. 2. 4 and 5 are views showing other embodiments of the present invention, FIG. 6 is a partially cutaway side view showing an embodiment of a conventional water vehicle, and FIG. 7 is a diagram showing a conventional water vehicle. It is a schematic diagram showing an example. 6...engine, 10. IOA...Mount device,
14.40...Mount body, 15...Engine plate, 15b...Edge part, 15e...Horizontal part, 3
0... Mounting bolt, 30a... Engagement part, 31...
Groove, 32° 41...Press metal fitting, 33.42...Base plate, 45...Vibration-proof sleeve part, 46...Stepped bolt, 47...Shoulder part (locking part). Figure 6 A. Applicant's agent Hisashi Hatano $73

Claims (1)

[Claims] In an engine mount structure for water vehicles, etc., in which the edge of the engine plate on which the engine is placed is supported by a mount device, and this mount device is attached to an engine mounting base in the engine room, a mounting bolt is screwed to the mount device. The end edge of the engine plate is held in the engaging portion of the mounting bolt, and the mounting bolt can be reversibly rotated to finely adjust the mounting of the engine plate. Engine mount structure for water vehicles, etc.