JPH023595A - Propeller device for surfing boat such as surfing board, bladder type boat and the like - Google Patents

Abstract

PURPOSE:To aim at the safety and improving the efficiency by setting up a stand axis at the back part of a fixing board so as to fit a stand pipe thereto and fixing a rotary rod with pedals to the stand pipe and a propeller wing board extending backward to the rotary rod and the stand pipe. CONSTITUTION:A fixing base 1 is fixed on the back end surface of a surfing board, etc., and pedals 6 are trodden on alternately by a rider on the surfing board. By this motion, a wing board 8 is alternately shaken in the longitudinal direction around a stand axis 2 through a rotary rod 5, a stand board 9 and stand pipe 4 so as to manifest propeller force. At this time, the proceeding directing can be altered by adjusting the tread of right and left feet. The rotation of the wing board 8 does not present the danger to the third person because of its low speed. The safety is thus obtained as well as the efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device in which a surfing board, which is a water entertainment device, is attached to a rectangular swim bladder type board and can be propelled by human power.

[Conventional technology]

Among the surfing boards mentioned above, such as surfing boards and swim bladder-type boards, surfing boards are made of foamed resin, and some have masts and sails that sail on the water surface (so-called windsurfing boards). Many of these wave riding boards do not have a propulsion function and simply use buoyancy to ride the waves and the shores of shallow beaches.

[Problem that the invention seeks to solve]

By the way, if the above-mentioned equipment, which is not equipped with a sailing device and is used simply for surfing, is provided with some kind of propulsion function,
This can greatly increase interest, but using mechanical power as a propulsion device in this case is disadvantageous in handling, so human power is limited, and from a structural standpoint,
It was considered difficult to create an efficient device because something like an oar that protruded from the side would pose an obstacle to others and also limit the operating posture.

[Means for solving problems]

On the other hand, the present invention is most suitable for a device that does not protrude laterally and can be used in the original posture using the legs, having a structure similar to that of a Japanese boat. It was developed with a focus on these points. In other words, the ro is made in the shape of a spatula, the lower part of which is fitted into a lobeso attached to the stern, and the upper part is connected to the deck of the boat with a rope, and by pushing and pulling it, the ro is rotated within the required range and at the same time, the ro itself is tilted. It has the advantage of having a narrow range of motion and being able to change the direction of propulsion to the left or right at any time depending on how it is operated.

The present invention allows this action to be performed simply by rotating the foot, and also allows it to be easily attached to any surfing board or swim bladder type board.

[Embodiments of the invention]

An embodiment of the present invention will be explained with reference to the drawings.
In FIGS. 2 and 3, reference numeral 1 denotes a mounting base, which is fastened to the upper surface of the rear end of a desired wave riding board, such as a surfing board, via bolts or clamps. Reference numeral 2 denotes a support shaft, whose lower end is erected on the mounting base 1, and whose upper end is inserted into and fixed to a support fitting 3 provided on the mounting base 1. This support shaft 2 is located on the mounting base l, and a standpipe 4 and a rotating rod 5 with a pedal are inserted above it, so that when the rotating rod 5 with a pedal is rotated, the standpipe 4 is also rotated. However,
The rotating rod 5 with a pedal is fitted and attached so that it can move slightly within a notch at the upper end of the standpipe 4. Pedals 6.6 are pivoted to both ends of this rotating rod 5 with pedals, and a connecting rod 7 is provided connecting these pedals 6.6 so that both pedals 6.6 always face in the same direction. It has become.

Next, 8 is a vane plate, and this vane plate 8 has a shaft hole 10 provided in the middle part of a vertical plate 9 fixed to the base end thereof projected rearward from the circumferential surface of the vertical pipe 4 in advance. The vertically extending hole 12 formed at the upper end of the vertical rod 9 is engaged with a pin 13 projecting from the rear surface of the rotating rod 5 with a pedal, thereby being attached and held.

[action, effect]

This invention has the above-mentioned configuration, and as described above, the mounting base l is fixed to the top surface of the rear end of a surfing board as shown in FIG. 4 or a swim bladder type board as shown in FIG. 5 using a mounting bolt or a clamp. At the same time, as is clear from FIGS. 4 and 5, the user can move forward by swinging the wing plate 8 from side to side by alternately moving both feet engaged with the pedals 6.6.

In this case, the rotation rod 5 with pedals and the standpipe 4 can move slightly relative to each other, so the rotation angle of the standpipe 4, that is, the rotation angle of the vane 8, is the same as the rotation angle of the rotation rod 5 with pedals. It is slightly smaller than the corner, so the vertical plate 9 has a shaft hole 10 as shown in FIG.
The wing plate 8 connected to the vertical plate 9 tilts left and right as an axis, and is moved with one side edge facing the direction of rotation facing downward at all times. Similar operations are repeated.

The present invention can be operated by simply rotating the rotation rod 5 with pedals from side to side using both feet, and by adjusting this rotation angle as needed, the direction of movement can be changed freely. Since the blade 8 rotates at a low speed, there is no risk of injury even if the third row is touched, and is extremely efficient. Also.

The propulsion device of the present invention can be applied not only to surfing boards and swim bladder type boards but also to small boats and the like.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, with FIG. 1 being a side view and FIG.
The figure is a plan view, Figure 3 is a slope view seen from the rear, Figure 4 is
FIG. 5 is a side view showing the state of use when attached to a surfing board and a swim bladder type board, respectively, and FIG. 6 is an explanatory view showing the movement of the standing board. 1... Mounting base, 2... Support shaft, 4... Standpipe, 5...
・Rotating rod with pedal, 6... pedal, 8... wing plate,
9... Standing board, 11... Horizontal rod, 13... Pin.

Claims (1)

[Claims] (1) Fit the standpipe into the vertical shaft installed at the rear of the mounting base, connect and support the rotary rod with pedals to the top of the standpipe with some movement allowed, and attach a separate lower end to the rear of the standpipe. A surfing board, a swim bladder-type board, in which a standing board with a wing plate projecting toward the rear is rotatably supported at its middle and upper ends on the rear face of the standpipe and the rear face of a rotary rod with pedals, respectively. Propulsion device for surfing boards such as.