JPH0420836B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improvement of a steering handle device for a jet propulsion type small watercraft.

<Conventional technology and its problems> In general, in jet propulsion type small boats that glide freely on the water surface, one operator stands on the floor deck of the boat and holds it with both hands. By turning the handlebar, you can control the steering cable that runs from the handle post through the inside of the boat to the stern, and swing the jet-propelled steering nozzle located at the stern left and right. However, as is clear from Figures 8 and 9, in the conventional watercraft, the handle post a
The middle grip portions c of the pair of left and right handlebars b protruding from the upper part of the rear end are arranged horizontally in an overall V-shape when viewed from the top.

Therefore, when the boat body d turns, the operator's body is swung around as if the operator's hand holding the grip part c is taken sideways, resulting in a significantly unstable operating posture. If you are forced to do so, you will not be able to operate the vehicle smoothly and stably.
Also, since the grip position opens both sides of the body,
Ergonomically, it is not possible to apply treading force due to body weight to the boat body d effectively and as desired, and there is a problem that the so-called quick steering performance is also inferior.

<Means for Solving the Problems> The present invention is designed to solve these problems, and for this purpose, a base plate for attaching the handle is provided at the upper rear end of the handle post that stands up from the hull. In the jet propulsion type small watercraft, the handlebar mounting plate, which is fixedly installed and exhibits a widening V-shape as a whole when viewed from above, is rotatably supported on the base board by a vertical axis. A pair of handle grips are placed at both left and right ends of the handlebar so as to stand up on a plane perpendicular to the installation plane of the bar, and to rotate forward and backward about the longitudinal axis of the bar, so that the angle of the handle grips is raised relative to the installation plane. The first feature is that the mounting plate is adjustable, and the handlebar is integrated with the front plate, which is pivoted to the base board, based on the premise that it is a control handle device for the same jet-propelled small boat. The handlebar is divided into two parts, and the pair of plates are connected so as to be adjustable in the front and rear directions, and a pair of handle grips are attached to both left and right ends of the handlebar, perpendicular to the installation plane of the bar. The second feature is that the bar is mounted so that its angle with respect to the installation plane can be adjusted so that it stands upright on a plane where the bar is installed and rotates back and forth about the longitudinal axis of the bar.

<Example> Hereinafter, the specific structure of the present invention will be described in detail based on the illustrated example. In FIG. 1, which shows the overall outline of the jet propulsion type small watercraft, 10 is made of fiber reinforced plastic (FRP), etc. The boat body is made of the same material and has a completely hollow and closed float structure, and almost the rear half of the boat body is defined as a floor deck 11 on which the operator stands. 12 is an engine room divided into the remaining front half, 13 is also connected to the bow of the hull 10 by a horizontal shaft 14,
It is a handle post which is pivotally mounted so that the raised position can be operated, and at the upper part of the rear end facing the floor deck 11, there is a base board 15 for attaching the handle.
It is, so to speak, fixed and integrated with the backing from below.

A control handle device as described below is assembled to the base board 15. That is, in FIGS. 2 to 6, which are extracted and enlarged, 16 is a mounting plate for the handlebar 17, which is composed of an assembly of a front plate 16a and a rear plate 16a, and a rear end of the rear plate 16b. Handlebar 17, which is shaped like a wide rectangle in plan view
is fixedly installed by welding etc.

Further, the front plate 16a is joined to the base board 15 from below and is pivoted around a vertical shaft 18 so as to be able to be steered therearound. Of course, the vertical axis 18 faces the center line (Y-Y) of the boat 10, but in the middle of the front plate 16a, which is eccentrically positioned laterally,
A starting end of the steering cable 19 is attached. Needless to say, the terminal end of the cable 19 is connected to a steering nozzle (not shown) at the stern of the boat via the handle post 13 and the interior of the boat body 10.

Reference numeral 20 designates adjustment screw holes arranged in a plurality of pairs on the left and right sides at the rear end of the front plate 16a.
is formed corresponding to the front end of the rear plate 16b. Therefore, from the blank hole 21 to the screw hole 2
By replacing and screwing the fixing bolts 22 into 0, the connecting position of the rear plate 16b to the front plate 16a can be adjusted in a so-called telescopic manner. In other words, the handlebar 17 attached to the rear plate 16b is adjusted to be long or short depending on the length (mounting position) (L) of the handlebar 17 extending rearward from the vertical shaft 18.

However, the mounting plate 16 of the handlebar 17
is a pair of front and rear plates 16a, 16 like this.
It is not limited to an assembly consisting of b, but it is also possible to create it as a continuous integral piece thereof in advance. In addition, 23
is a notch that defines the rotation angle of the mounting plate 16 with respect to the vertical axis 18, and the front plate 16
It is attached to the front edge of a. Fixing bolt 22
It is also possible that there are multiple pairs of left and right pairs.
This is as suggested by the example.

The above-mentioned handlebar 17 is made of a metal round pipe material, and male splines 2 are formed on the surfaces of both left and right ends of the handlebar 17.
4 and a male thread 25 are carved in parallel. On the other hand, reference numeral 26 denotes a pair of left and right handle grips that are separate from the handlebar 17, and are also made of a metal round pipe material of a certain length, and a sheath shaft 27 is perpendicular to the middle part in the longitudinal direction. The sheath shaft 27 is welded and integrated in a penetrating state, and a female spline 28 that engages with the male spline 24 is also engraved on the sheath shaft 27.

The sheath shaft 27 of the grip 26 is spline-fitted so that it can be freely inserted into and removed from the handlebar 17, and the fitted state is maintained by a fixing nut 29 that is screwed into the male thread 25 of the handlebar 17 from the outside laterally. It is fixedly locked so that it cannot rotate and cannot slip out.

That is, the grip 26 is located in the installation plane (X-X) of the handlebar 17, as is clear from FIGS.
The grip 26 is erected in a plane orthogonal to the handlebar 1, so to speak, and by changing the fitting position of the female spline 28 with respect to the male spline 24, the grip 26 is aligned with the handlebar 1.
As the grip 26 rotates back and forth about the longitudinal axis of the grip 7, the angle (θ) of the grip 26 with respect to the plane (X-X) can be adjusted.

However, if the configuration is such that the undulation angle (θ) can be adjusted, instead of using the spline fitting means, the surface of the handlebar 17 and the sheath shaft 27 of the grip 26 can be connected to each other as shown in FIG. It may be formed as a polygon or other uneven shape with a replaceable cross section. Also, the sheath shaft 27 and the grip 26 can be made into one continuous piece.

Furthermore, in the illustrated example, the grip 26 is set in a horizontal T-shape that intersects with the handlebar 17 when viewed from the front and back direction of the boat body 10, but it is formed short and has a sheath shaft 27 at one end. By attaching the handle bar 17, it is also possible to attach it in an L-shape that intersects with the handlebar 17. Note that 30 is a washer and 31 is an end cap of the grip 26, and the grip 26 may be integrated with an elastic coating made of rubber, synthetic resin, or the like (not shown).

<Effects of the Invention> In any case, in the present invention, the base board 15 for attaching the handle is fixedly installed at the upper rear end of the handle post 13 that stands up from the boat body 10, and the handlebar is not widened at the rear as a whole in plan view. In a jet propulsion type small watercraft, in which a mounting plate 16 of a handlebar 17 having a shape of a letter is rotatably supported on the base board 15 by a vertical shaft 18, a pair of mounting plates are attached to both left and right ends of the handlebar 17. The handle grip 26 is erected on a plane perpendicular to the installation plane (X-X) of the bar 17, and is rotated forward and backward about the longitudinal axis of the bar 17 with respect to the installation plane (X-X). Since it is installed so that the undulation angle (θ) can be adjusted, it has the effect of completely eliminating the problems of the prior art mentioned at the beginning.

That is, the pair of left and right handle grips 26 stand on a plane perpendicular to the installation plane (X-X) of the handlebar 17, and the installation plane is such that they rotate in the front-rear direction about the longitudinal axis of the handlebar 17. Since it is attached so that the angle of elevation (θ) relative to (X-X) can be adjusted, the wrist of the operator's hand holding the grip 26 is in an erect state, effectively adding weight to the hull 10. In addition, since both sides of the body are automatically kept in a tight state in this maneuvering posture, the body swings when the boat 10 turns. There is no fear of it being moved, and it can be operated with great stability.

This effect will be more pronounced by adjusting the undulation angle (θ) of the grip 26 according to the operator's preference and posture. Therefore, it is extremely useful for use in jet propulsion type small boats that are operated while standing.

In addition to the above-mentioned mounting structure of the handle grip 26, the mounting plate 1 of the handlebar 17 is
6 is divided into two parts: a front plate 16a that is pivotally attached to the base plate 15 of the handle post 13, and a rear plate 16b that integrally includes the handlebar 17, and a rear plate 16b that is connected to the front plate 16a. If the connection position is adjustable, it will be easy to adjust the above-mentioned weight addition and movement to accommodate the different physiques and skills of the pilot, and it will be possible to always maintain optimal control in a comfortable posture. It can be said that it is even more profitable in that it can be done in the same way.

[Brief explanation of drawings]

Fig. 1 is an overall schematic side view of a jet propulsion type small watercraft according to the present invention, Figs. 2 and 3 are a plan view and a side view showing the operating handle device in an enlarged manner, and Fig. 4
The figure is a sectional view taken along the line 4-4 of Fig. 2, Fig. 5 is an enlarged sectional view taken along the line 5-5 of Fig. 2, and Fig. 6 is an enlarged sectional view taken along the line 5-5 of Fig. 2.
FIG. 7 is a partial sectional view showing a modification corresponding to FIG. 6, and FIGS. 8 and 9 are a plan view and a side view showing a conventional control handle device. 10...Hull, 11...Floor deck, 13
...Handle post, 14...Horizontal axis, 15...
Base board, 16...Mounting plate, 16a...Front plate, 16b...Rear plate, 17...
Handlebar, 18...Vertical axis, 22...Fixing bolt, 24, 28...Spline, 26...Handle grip, 27...Sheath shaft, 29...Fixing nut, (X-X)...Installation plane, ( θ)...Angle of ups and downs.

Claims (1)

[Scope of Claims] 1. A handlebar having a handlebar mounting base plate 15 fixedly installed at the upper rear end of a handlebar post 13 that stands up from the boat body 10, and exhibiting a wide-rear V-shape as a whole in plan view. In a jet propulsion type small watercraft, in which 17 mounting plates 16 are rotatably supported on the base plate 15 by vertical shafts 18, a pair of handle grips 26 are attached to both left and right ends of the handlebar 17, and The rising angle θ with respect to the installation plane (X-X) is such that the bar 17 stands up on a plane orthogonal to the installation plane (X-X) of the bar 17 and rotates in the front-rear direction about the longitudinal axis of the bar 17.
A control handle device for a jet-propelled small watercraft, characterized in that it is installed as an adjustable handle. 2 When looking at each of the handle grips 26 from the front and back direction of the boat body 10, the L that intersects with the handlebar 17
A control handle device for a jet propulsion type small watercraft according to claim 1, characterized in that it is formed into a letter shape or a sideways T-shape. 3. A base plate 15 for attaching the handlebar is fixedly installed on the upper rear end of the handlebar post 13 that stands up from the hull 10, and a mounting plate 16 for the handlebar 17, which has a wide-rear V-shape as a whole when viewed from above, is installed. , in a jet propulsion type small watercraft which is rotatably supported on the base plate 15 by a vertical shaft 18, the front plate 16a, which has the mounting plate 16 pivoted on the base plate 15, and the handlebar 17 are integrated. The handlebar 17 is divided into two parts, and the pair of plates 16a and 16b are connected to each other so as to be freely adjustable in the front and rear directions, and a pair of handle grips 26 are attached to both left and right ends of the handlebar 17. , stands on a plane perpendicular to the installation plane (X-X) of the bar 17, and has an angle of elevation with respect to the installation plane (X-X) so that it rotates in the front and back direction around the longitudinal axis of the bar 17. A control handle device for a jet propulsion type small boat, characterized in that it is installed so that the angle (θ) can be adjusted.