JPH0526000Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a steering device for a small personal watercraft in which a steering handle is installed in a position in front of the seat of a hull having a seat at the rear.

[Prior art] For example, a handle pole mounting bracket is fixed to the front end of a deck of a boat, a handle pole that is movable up and down is attached to the handle pole mounting bracket, and the handle pole is attached to the bottom of the rear end of the handle pole. A small personal watercraft with a protruding shaft and a bar-shaped steering handle rotatably attached to the mounting shaft is, for example, disclosed in Japanese Patent Application Laid-Open No. 1973-
It is disclosed in Publication No. 58596.

Since the steering device of the above-mentioned small personal watercraft is installed on a handle pole separately provided on the deck, there is no need to consider the sealing performance of the deck, that is, the hull against water, when installing the steering device. A steering column is installed on the top of the deck (steering mounting wall),
Insert a steering shaft with a steering handle at the top into this steering column,
In a steering device having a steering rotary plate and a cable attached to the lower end of the steering shaft, consideration must be given to the sealability against water.

[Problems to be Solved by the Invention] However, although conventional steering devices require consideration of sealing performance, the reality is that no such device has been disclosed yet.

This invention was made in order to solve the above-mentioned problem, and the purpose is to improve the sealing performance of the hull against water when installing a steering device.

[Means for Solving the Problems] A steering wheel support device for a small personal watercraft according to the present invention includes a steering mounting wall that closes off the outside and the inside of the hull at a position in front of the seat of a hull having a seat at the rear, and An insertion hole is formed in the steering mounting wall, and a steering column having a mounting flange on the outer periphery is closed and attached via the mounting flange to a position corresponding to the insertion hole in the steering mounting wall. A steering shaft having a steering handle above is inserted into the steering column, and a lower end of the steering shaft projects below the steering mounting wall, and a steering shaft is attached to the projected shaft. A steering transmitting rotary member that rotates with the shaft is attached, and an operating member for operating a steering means of the hull is connected to the steering transmitting rotary member.

[Function] In this invention, the steering column is attached in a closed manner by a mounting flange protruding from its outer periphery, and a portion of the steering shaft protruding downward from the steering mounting wall is connected to the course changing means of the hull. By arranging the steering transmitting rotating member and the operating member, water does not enter the hull through the steering mounting wall.

[Example] An example of this invention will be described below with reference to the drawings.

In FIG. 1, numeral 1 denotes a hull, which is formed by vertically joining a lower hull 2 and an upper deck 3, both made of FRP, via a flange 4 on the outer periphery.

The deck 3 extends from the bow to the stern, and a hood 5 is attached to the front of the deck 3 to cover an engine (not shown) in the hull 1 from above so as to be openable and closable. The back elevational wall of the hood 5 is indicated by a broken line as 5A in FIG. It is received by the mounting wall portion 3A in a sealed manner. A steering device S is installed via such a steering mounting wall portion 3A.

Furthermore, as shown in FIG. 2, the portion of the deck 3 that corresponds to the rear of the steering device S includes a seat mounting portion 7 that protrudes in the center, and a seat mounting portion located on both sides of the seat mounting portion 7. It is integrally formed in a convex shape with leg rests 8, 8 which are lower than 7.

As shown in FIG. 1, a seat 9 is attached to the upper surface of the seat mounting portion 7, and a boarding ramp is provided at a portion corresponding to the stern of the seat 9, which slopes downward toward the stern. 10 are formed.

The steering device S in such a small personal watercraft is configured as follows.

That is, FIG. 3 and FIG. 4, which is a rear view thereof, show the first embodiment of the steering device S. In FIG. There is. Reference numeral 12 denotes a steering column, which has a cylindrical shape and has an integral mounting flange 13 on its outer periphery.The steering column 12 is inserted into the insertion hole 11 from below, and the mounting flange 13 on the outer periphery is connected to the steering mounting wall 3A. Attach the mounting bracket (bolt) to the bottom of the
14, the steering column 12 is attached.

This steering column 12 has a mounting flange 1
3 protrudes to an intermediate height thereof, so that it protrudes by an approximately equal length above and below the steering mounting wall portion 3A.

In such a steering column 12, the steering column 12 is attached to the steering mounting wall 3A.
Prior to installation, the steering shaft 15 is inserted from above. The steering shaft 15 is rotatably supported by flanged bearing bushes 16, 16 disposed above and below the steering column 12.

The steering shaft 15 has a support flange 17 at a position in contact with the upper bearing bush 16, and a cylindrical support boss 18 at the upper end above the support flange 17.

As shown in FIG. 4, the support boss 18 has flanged pivot bushes 20 at both axial ends of the boss hole 19.
Pivot shaft (bolt nut) 2 inserted through
An aluminum tailing member 22 which can be tilted back and forth using 1 as a fulcrum is attached, and a bar-shaped steering handle 6 is detachably attached to the upper end of the tailing member 22.

Here, the pivot button 20 is
The flange is arranged so as to protrude from the support boss 18, and the inner surfaces of the bifurcated legs 23, 23 of the tailing member 22 are in contact with each outer end surface of the flange.

On the other hand, a positioning means 24 that allows the angle of the tailing member 22 to be freely adjusted includes a positioning stopper 24.
5, it has a positioning pin 26 and a set spring 27.

As shown in FIG. 3, the positioning stopper 25 is plate-shaped, and as shown in FIG. 4, it is welded to one side of the upper end of the support boss 18 and protrudes upward. This positioning stopper 25 has a pivot shaft 2 as shown in FIG.
Multiple (3 pieces) corresponding to the circular locus centered on 1
A tapered positioning hole 28 is formed.
Here, the center positioning hole 28 is
The remaining two positioning holes 28 are used for positioning the center position, and the remaining two positioning holes 28 are used for front and rear positioning.

Further, as shown in FIG. 4, the positioning pin 26 has a tapered fitting part 29 at one end,
It also has an unlocking operation part 30 at the other end, and this positioning pin 26 is inserted through a pin insertion hole 31 formed in the tailing member 22 so as to be freely advanced and retracted.

Furthermore, the set spring 27 is provided in a spring receiver 32 that is attached to one side of the tailing member 22 so as to protrude from the side, and the set spring 27 is provided in a spring receiver 32 that is attached to one side of the tailing member 22.
9 is biased to be tapered into the positioning hole 28.

Here, 33 is a spring receiving flange.

On the other hand, the steering shaft 15 is
As shown in the figure, a plate-shaped steering transmitting rotating member 3 protrudes downward from the steering column 12 that protrudes downward from the steering mounting wall 3A, and is attached to a square boss 34 formed in the protruding portion.
5 and tightening the lock nut 36 from below, this steering transmission rotating member 35
is fixed so as to rotate together with the steering shaft 15.

This steering transmission rotating member 35 has a rotating piece 37 at its bottom, and this rotating piece 37 includes:
One end of an operating member 38 consisting of a cable that converts rotation into linear motion is connected. Further, as shown in FIG. 4, the steering transmission rotating member 35 has engaging protrusions 39, 39 at two spaced apart locations on its outer periphery, and between these engaging protrusions 39, 39, Since the stopper 40 integrally projects downward from the mounting flange 13, these engaging protrusions 3
9, 39 and the stopper 40, the rotation angle of the steering transmission rotating member 35, that is, the handle 6, is defined within a certain range. The other end of the operating member 38 is connected to a steering nozzle (steering means) (not shown) provided at the stern of FIG. 2 for changing the course direction of the hull.

In the above configuration, the steering mounting wall portion 3
When installing the steering device on A, the steering transmission rotating member 35 is attached to the steering mounting wall 3A.
Rather than adopting a structure in which the operating member 38, which is a cable, is placed on the upper side and guided from the upper side to the lower side of the steering mounting wall 3A, the mounting flange 13 protruding from the outer periphery is fixed by abutting it against the steering mounting wall 3A. While the insertion hole 11 is closed, the steering transmission rotating member 35 and the operating member 38 attached to the steering shaft 15 are arranged below the steering mounting wall 3A.
Even if water falls on the steering mounting wall 3A, the water will not enter the lower side of the deck 3 through the through hole for inserting the operating member 38, and the sealing structure of the mounting flange 13 will ensure a good seal. Secured.

Further, in the above embodiment, the steering column 12 through which the steering shaft 15 has been inserted is inserted from below through the insertion hole 11 of the steering mounting wall 3A, and the steering column 12 is fixed to the steering mounting wall 3A by the fixture 14. This allows for easy assembly. Furthermore, the mounting flange 13 may be located above the deck 3.

[Effects of the invention] As explained above, according to this invention, the steering column is attached in a closed manner by the mounting flange that protrudes from the outer periphery of the steering column, and the portion of the steering shaft that protrudes downward from the steering mounting wall part. Furthermore, by arranging the steering transmitting rotating member and the operating member that are connected to the steering means of the hull, water does not enter the hull through the steering mounting wall.

[Brief explanation of drawings]

Figure 1 is a left side view of a small personal watercraft showing an embodiment of this invention, Figure 2 is its rear view, Figure 3 is an enlarged sectional view of the main part of the steering device, and Figure 4 is its rear view. . 1...Hull, 3...Deck, 3A...Steering mounting wall, 6...Steering handle, 9
... seat, 11 ... insertion hole, 12 ... steering column, 13 ... mounting flange, 15 ... steering shaft, 35 ... rotating member for steering transmission, 38 ... operation member, S ... steering device.

Claims (1)

[Scope of utility model registration request] A steering mounting wall portion for closing off the outside and the inside of the hull is provided at a position in front of the seat of a hull having a seat at the rear, and an insertion hole is formed in the steering mounting wall portion, and an insertion hole in the steering mounting wall portion is provided. A steering column having a mounting flange on its outer periphery is closed and attached to a position corresponding to the mounting flange, and a steering shaft having a steering handle on the upper part is inserted through the steering column. A lower end portion is protruded below the steering mounting wall portion, and a steering transmitting rotating member that rotates together with the steering shaft is attached to the protruding shaft portion, and a steering transmitting rotating member that rotates together with the steering shaft is attached to the protruding shaft portion. A steering device for a small personal watercraft, characterized in that an operating member for operating a steering means of a hull is connected.