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JPS57126790A |
PURPOSE: To obtain propulsive force by enabling a pair of front and rear fins to be driven by the strength of human legs. CONSTITUTION: Left and right pedals 4 are engaged, through a gear casing 2, with a fin drive shaft 12 fitted with f...
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JPS57117300U |
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JPS57117293U |
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JPS5781998U |
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JPS5767894U |
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JPS5752393U |
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JPS5746095U |
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JPS5733086A |
PURPOSE: To enable the use of a propeller for arbitrary boats and make the propeller portable, by dividing a propelling section and the boat body from each other and by disassembling a treading actuation section, the propelling section a...
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JPS5733598U |
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JPS571797U |
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JPS57499U |
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JPS56174400U |
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JPS5655116Y2 |
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JPS5655117Y2 |
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JPS56148991U |
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JPS56124590A |
PURPOSE: To fix a holder to a rigger readily after the adjustment of its position by compressing and fixing a holder attaching part which is screwed to the tip of the rigger by a bolt. CONSTITUTION: A holding member 63 is screwed to the ...
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JPS56124588A |
PURPOSE: To obtain the row boat whose structure is such that the attaching strength and the appearance thereof are excellent by shifting a rigger attaching part to the upper part of a deck, and reinforcing the attaching part by a frame. ...
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JPS56124589A |
PURPOSE: To enable the oar supporting point to be adjusted by externally putting the oar holding part into the outer periphery of the tip of a rigger so that the oar holding part can be fixed by screwing, and fixing the oar holding part ...
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JPS56124587A |
PURPOSE: To facilitate the mounting and fine adjustment of the stretchers by constituting the stretcher so that the lengthe of the stretcher can be varied. CONSTITUTION: A channel shaped supporting rail 90 having an opening part on the i...
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JPS5640076B2 |
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JPS5639758Y2 |
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JPS56116596A |
PURPOSE: To propel a boat by manpower, by working pedals to actuate paddles through a rotation transmission mechanism. CONSTITUTION: A gear 8 is secured on a crankshaft, which is rotated by working pedals 9, 10. The gear 8 and another ge...
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JPS56119800U |
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JPS5635439Y2 |
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JPS5632397Y2 |
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JPS5683599U |
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JPS5623197Y2 |
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JPS5659408U |
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JPS5649698U |
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JPS5647677U |
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JPS5643094A |
PURPOSE: To propel a boat forward and backward by rotating its screw with the pedalling motion of a pair of crank pedals simultaneously adjust a position of the screw upward and downward in accordance with the depth of water in a pond, r...
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JPS5643095A |
PURPOSE: To perform the operation of managing a boat in a suitable condition for its opertional purpose, by both vertically shifting the position of a pedalling screw in accordance withits travelling, purpore and lifting a rudder to an o...
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JPS5634594A |
PURPOSE: To obtain a boat propelling force by forming slender groove having a U- shaped section on the bottom of a boat and pivotally installing a cover as flap on the frontal end side of said groove and allowing said cover to move up an...
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JPS56500409A |
PCT No. PCT/FR80/00064 Sec. 371 Date Dec. 9, 1980 Sec. 102(e) Date Dec. 9, 1980 PCT Filed Apr. 23, 1980 PCT Pub. No. WO80/02270 PCT Pub. Date Oct. 30, 1980.A pedal-operated nautical propulsion device for small craft, such as a pneumatic ...
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JPS5622199U |
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JPS55171696U |
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JPS55168498U |
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JPS55157100U |
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JPS55136699U |
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JPS55136700U |
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JPS55131896U |
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JPS55119588A |
PURPOSE: To elevate an efficiency for a paddle and increase speed for a boat of a float type by installing a means paddling a couple of paddles port and starboard, being alternatively moved in a horizontal and parallel direction by means...
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JPS55121798U |
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JPS5534160Y2 |
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JPS5534158Y2 |
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JPS5534159Y2 |
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JPS55113697U |
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JPS55104598U |
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JPS55104596U |
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JPS55104597U |
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