JPH049397U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a plan view showing a small boat using an embodiment of the human-powered propulsion device of the present invention, Figure 2 is a side view of the small boat shown in Figure 1, and Figure 3 is a side view of the small boat shown in Figure 1. 4 is a side view showing the human-powered propulsion device for the small boat shown in FIG. 1, and FIG. 5 is a plan view showing a small boat using another embodiment of the human-powered propulsion device of the present invention. FIG. 6 is a side view showing the small boat shown in FIG. 5, and FIG. 7 is a side view showing the human power propulsion device for the small boat shown in FIG. 10,80...Small boat, 14,82...Hull, 16,84...Human power propulsion device, 18...Frame, 28...Saddle, 30...Crank, 32...
...Shaft portion, 34, 36... Arm portion, 38, 40... Pedal, 42... Intermediate shaft, 44... Transmission means, 52
...first bevel gear, 54...second bevel gear,
56... exchange means, 58, 86... propulsion shaft, 60
... Screw propeller, 64 ... Handle, 7
0,94... Rudder, 72... Rudder angle transmission means, 88...
...First shaft member, 90... Universal shaft joint, 92...
Second shaft member.

Claims (1)

[Claims for Utility Model Registration] (1) A human-powered propulsion device used in a small boat, which comprises a frame attached to the hull of the small boat, and a frame rotatably supported by the frame in the longitudinal direction of the boat. a crank having a shaft extending in a horizontal direction orthogonal to the crank; and a pair of arms each having one end integrally connected to the corresponding end of the shaft; a pair of pedals that are rotatably mounted around an axis parallel to the shaft of the frame; and a pair of pedals that are mounted to the frame and located vertically above the pedals and between one and the other of the pedals. a saddle, an intermediate shaft rotatably supported by the frame, located between the stern of the hull and the crank, and extending parallel to the shaft of the crank; a transmission means for transmitting data to a shaft; a propulsion shaft extending from the hull in a direction perpendicular to the intermediate shaft toward the outside of the hull; and exchanging rotation of the intermediate shaft with rotation about an axis of the propulsion shaft. an exchange means for transmitting the rotation of the intermediate shaft to the propulsion shaft by a screw propeller coaxially attached to the propulsion shaft; and a screw propeller disposed between the saddle and the bow of the hull. A human-powered propulsion device comprising: a steering wheel rotatably supported by the hull around a vertical axis; a rudder disposed outside the hull; and rudder angle transmitting means for transmitting rotation of the handle to the rudder. . (2) The exchange means is meshed with a first bevel gear coaxially fixed to the intermediate shaft, and a first bevel gear coaxially fixed to the propulsion shaft, and the number of teeth is The human power propulsion device according to claim 1, further comprising a second bevel gear whose number of teeth is smaller than that of the first bevel gear. (3) The rudder is disposed at the rear of the stern of the hull, and the propulsion shaft has the second bevel gear fixed thereto and is rotatably supported by the hull, extending from the hull in the longitudinal direction of the hull. a first shaft member extending along the stern outwardly of the hull, a universal joint having one shaft attached to the other end of the first shaft member, and one end of the other shaft of the universal joint; a second shaft member that is attached to the rudder, is rotatably supported by the rudder, and extends in a direction perpendicular to the rotational axis of the rudder, and the screw pelopla is attached to the other end of the second shaft member. The human power propulsion device according to claim 2, wherein the human power propulsion device is attached.