JPH0631075B2 - Steering device for small vessels - Google Patents

Description

TECHNICAL FIELD The present invention relates to a steering device for a small boat having excellent operability.

(Prior Art) Generally, in a small vessel, since the space in the vessel is limited, it is required that the outfitting components are compactly assembled and the operability of the operating device is improved. In particular, the smaller the size of the ship, the greater the demand for it. Therefore, it is desired to develop a simple steering device that enables steering in various postures on the water toy.

(Object of the Invention) The present invention has been made to solve such a conventional problem, and provides a steering device having a simple configuration and capable of freely performing steering in various postures. is there.

(Structure of the Invention) The present invention relates to a steering device for a small boat, in which a handle base for supporting a steering shaft is formed by bulging a front part of a hull upward, and a deck on which an occupant rides is formed behind the handle base,
A bearing is fixed to the upper surface of the handle base, a steering shaft extending in the vertical direction is passed through the bearing, and a steering handle protruding in the left-right direction is attached to the upper end of the steering shaft, and the lower end of the steering shaft serves as a rudder. The steering shaft holds the steering handle and the deck so as to be movable in the axial direction while maintaining a substantially constant distance in the front-rear direction.

(Embodiment) In FIG. 1, a water play equipment 1 includes a fuel tank 11, an air intake pipe 12, an engine 1 inside a hull outer plate 15 from the bow side.
3 and the jet pump 14 are stored, and the fuel tank 1
1, an opening 21 and a cover 22 in front of the opening 21,
A drain hole 23 is provided on the side. A deck 16 on which a person 10 rides is formed at the rear of the hull, and a rudder 40 composed of a jet nozzle is attached to the lower rear end of the deck 16. A steering shaft 2 is provided in front of the deck 16 in a substantially vertical direction so as to project above the hull outer plate 15. At the upper end of the steering shaft 2, a steering handle 3 protruding in the left-right direction is provided.
Is attached, and the lower end of the steering shaft 2 is connected to the rudder 40 via cables 4 passing through both sides of the hull. In addition, the water sucked from the jet pump 14 passes through the waterway 19 and the rudder 4
Propelling the hull by being jetted from 0 in a predetermined direction,
It is configured to rotate.

The steering system is constructed as shown in FIGS. That is, the steering shaft 2 includes a cylindrical upper shaft 5 and a cylindrical lower end 6.
The upper shaft 5 is integrally formed with a cylindrical body 50 having a square cross section inside the cylindrical body, and the lower shaft 6 is a cylindrical body having a square cross section, and is axially arranged in the cylindrical body 50. Is movably fitted into. Therefore, the steering shaft 2 including the upper shaft 5 and the lower shaft 6 is configured to be expandable and contractible, and the rotational force is transmitted.

The upper shaft 5 is held by the bearing 9 by penetrating the bearing 9 fixed to the hull outer plate 15 so as to be movable in the axial direction,
A head portion 51 is formed on an upper end portion protruding upward from the penetrating portion, and a bearing 50 is formed on the head portion 51.
The operation handle 3 is rotatably held by the bearing 50. A ring 90 is attached to the outer periphery of the lower end portion of the upper shaft 5 so as to function as a stopper when the upper shaft 5 moves up.

On the lower shaft 6, a circular flange 7 protruding to the outer periphery is attached to the lower side of the square tubular portion, and the extension portion 5 is further provided on the lower side thereof.
5 is formed, and a cutout portion 70 having a semicircular planar shape is formed in the extension portion 55. And this flange 7
A cable 4 is laid on the outer periphery of the rudder 40. The cable 4 is connected to the rudder 40 from both sides of the hull through a guide 41, and the rudder 40 is operated via the cable 4 by the rotation of the lower shaft 6. Has been done. The extension portion 55 is rotatably fitted in a receiving portion 80 of the base 8 formed on the hull, and the tip end of a bolt 81 attached to the receiving portion 80 is fitted in the notch portion 70, whereby the lower shaft is attached. 6 can rotate about its axis only at a constant angle.

In the above embodiment, the steering shaft 2 is tilted forward, but the steering shaft 2 may be installed substantially vertically and may be tilted vertically or backward. If the grip portion at the tip of the operation handle 3 is curved so that it can be grasped from various directions, the operation handle 3
May be fixedly attached to the steering shaft 2.

Next, the operation of this device will be described. As shown in FIG. 2, a person 10 rides on the deck 16 and holds the grip portion 30 of the operation handle 3 to drive and steer the engine. At this time, when the person 10 stands up, the grip portion 3 is pulled up as shown in the drawing, and the operation handle 3 is set to a predetermined height. When the operating handle 3 is pulled up, the operating handle 3 is tilted upward because it is rotatably held by the bearing 50, and the upper shaft 5
Rises in the bearing 9 to a predetermined height while being fitted to the lower shaft 6. By operating the operation handle 3 in this state, the rotational force is transmitted from the upper shaft 5 to the lower shaft 6, and the flange 7
To operate the rudder 40 via the cable 4. The ring 90 at the lower end of the upper shaft 5 abuts the lower end of the bearing 9 to prevent further upward movement, thereby preventing the upper shaft 5 from coming off.

Further, when maneuvering with the knees in order to lower the center of gravity of the boat, the upper shaft 5 may be lowered and the grip portion may be grasped so that the operation handle 3 is kept substantially horizontal. Further, in the case of a water play equipment, in order to lower the center of gravity of the ship, the body may be put out on the water as shown in the figure, and in this case, the upper shaft 5 is lowered to the lowermost part and the operation handle 3 is turned downward. It suffices to tilt the grip portion 30 and grip the grip portion 30. When the upper shaft 5 is lowered, the upper end of the lower shaft contacts the head of the upper shaft 5 and is maintained at the lowest position in this state.

(Effects of the Invention) As described above, according to the present invention, in a steering device, a small boat such as a water toy is configured so that the steering shaft can be expanded and contracted so that it can be operated in various postures. Since the shaft is movably held in the axial direction while keeping the front-rear direction distance between the steering wheel and the deck almost constant, even if the steering shaft is moved in the axial direction, there is always enough embarkation on the deck. A space is secured so that the steering wheel can be gripped and operated in various postures. Therefore, the steering device of the present invention has a simple structure and excellent operability.

[Brief description of drawings]

1 is a side view showing an embodiment of the present invention, FIG. 2 is a perspective view of a steering shaft, FIG. 3 is a partially cutaway side view of the steering shaft, and FIG. 4 is a sectional view taken along line IV-IV of FIG. 5 is a perspective view of the lower shaft, and FIG. 6 is a sectional view taken along line VI-VI of FIG. 2 ... Steering axis, 3 ... Operation handle, 4 ... Steering cable, 5 ... Upper axis, 6 ... Lower axis, 16 ... Deck.

Claims (1)

[Claims] 1. A steering apparatus for a small boat, comprising a handle base for supporting a steering shaft by bulging a front part of a hull upward, and a deck on which an occupant rides is formed behind the handle base.
A bearing is fixed to the upper surface of the handle base, a steering shaft extending in the vertical direction is passed through the bearing, and a steering handle protruding in the left-right direction is attached to the upper end of the steering shaft, and the lower end of the steering shaft serves as a rudder. A steering device for a small boat, characterized in that the steering shaft is connected to the steering shaft, and the steering shaft is movably held in the axial direction while maintaining a substantially constant longitudinal distance between the operation handle and the deck.