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JPH0487896A |
PURPOSE: To use whirl water generated by a screw propeller as driving force and turning force efficiently by rotating the screw propeller by the pedal rotation caused by foot force to obtain the driving force for the canoe efficiently an...
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JPH0418098U |
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JPH049397U |
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JPH03125695U |
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JPH03125697U |
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JPH03112495U |
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JPH0370677B2 |
A semi-submersible marine craft for operation on the surface or in a semi-submerged condition has a pair of spaced parallel tubular water ballast floats disposed horizontally on either side of a vertical middle plane. The floats are disp...
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JPH03504840A |
PCT No. PCT/GB89/00632 Sec. 371 Date Dec. 4, 1990 Sec. 102(e) Date Dec. 4, 1990 PCT Filed Jun. 7, 1989 PCT Pub. No. WO89/12000 PCT Pub. Date Dec. 14, 1989.The device is an alternative to the conventional paddle or oars, and comprises a c...
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JPH0382697U |
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JPH03176291A |
PURPOSE: To make a functional alteration possible to be done to the maximum by installing both upper and lower transom gudgeons supporting both of a rudder and a detachable motor mount. CONSTITUTION: In order to make an ordinary boat ope...
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JPH0344040B2 |
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JPH0327036Y2 |
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JPH0324478Y2 |
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JPH0323917Y2 |
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JPH0335897U |
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JPH0379495A |
PURPOSE: To improve easiness and safety of rowing by taking the motion of a rowing operating beam as the rotation of a paddle wheel through a bevel gear to obtain a driving force in a boat propulsion device for rowing boat. CONSTITUTION:...
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JPH039520Y2 |
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JPH035519Y2 |
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JPH035520Y2 |
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JPH038096U |
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JPH037096U |
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JPH0314790A |
PURPOSE: To have effective coasting on the water surface with maneuvering similar to that for running on the road by driving the rotation of the rear wheel of a bicycle installed on a float using a screw, and by operating a steering rudd...
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JPH02303994A |
PURPOSE: To adjust the posture of a boat freely by installing a seat front/rear adjustably to a main body member supported to a pair of right/left long and thin pontoons by a lateral direction support frame and providing a pedal drive pr...
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JPH02141595U |
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JPH02103900U |
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JPH0230400Y2 |
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JPH0226798Y2 |
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JPH0291098U |
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JPH0232194B2 |
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JPH0268298U |
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JPH02114089A |
PURPOSE: To propel a vessel in simple ways at a low cost, obviating the need of a special power, oars the operation of which is difficult, and the like, by revolving a rotary board manually and revolving a screw through gears and a longi...
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JPH0257795U |
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JPH0299492A |
PURPOSE: To switch a single paddle to both forward and reverse for the use by a method wherein a tooth-shaped device in which a handle and a stroke part are positioned facing each other through the medium of tooth-shaped parts is revolva...
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JPH0296000A |
PURPOSE: To provide both pleasure and health promotion compatibly by stamping pedals installed in a boat, pushing thereby a piston, jetting water with the pressure produced in a cylinder, and using this power as propelling force. CONSTIT...
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JPH0288391A |
PURPOSE: To enable even a beginner to operate a scull by enabling a scull rod and an operating rod at the front end of a buoyant body to be rotated similarly in the same direction and symmetrically in the opposite direction by an interlo...
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JPH0288392A |
PURPOSE: To enable even a beginner to easily operate a scull by enabling the rotational angle of shafts of upper and lower scull rods to be changed so that an operating rod fixed to the upper portion of the lower scull rod projects a sui...
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JPH0244598U |
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JPH0277393A |
PURPOSE: To lessen fatigue and to enable long-time activity by fitting a pedal to a pedal support fixed to a fin and providing a member for tracting the pedal support and the fin. CONSTITUTION: A body is fixed to a saddle 8 by a fixing j...
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JPH0232496U |
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JPH0221098U |
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JPH0224291A |
PURPOSE: To enable rowing while facing front safely and easily by inserting a mechanism through which an oar is bent isometrically or nearly isometrically in a plane in the middle of the oar and making the root and tip of the oar move in...
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JPH0139277Y2 |
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JPH01503278A |
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JPH01249589A |
PURPOSE: To provide a high convenient and safe raft body by insertedly connecting an air-filled type arc-shaped raft body and an air-filled type spherical raft body by assembling parts to make constitution for general-purpose use. CONSTI...
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JPH01144191U |
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JPH01229795A |
PURPOSE:To obtain the oar of a boat for propelling the boat by operating the oar while facing a bow by providing an operating rod having a grip portion, a shank rod having a paddle portion, and an opposite direction torque transmitting d...
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JPH01120494U |
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JPH01156194A |
PURPOSE:To propel a boat with simple and sufficient power by rotatably installing a plate-like propeller wing whose head side section is flexibly constituted with the perpendicular direction of the base section taken as an axial directio...
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JPH0118478Y2 |
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JPH0173492U |
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