Pedals instead of oars. Drawing, description

PERSONAL TRANSPORT: GROUND, WATER, AIR
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Pedals instead of oars. Personal transport

Personal transport: land, water, air

Directory / Personal transport: land, water, air

We are so accustomed to the rowing boat that hardly anyone had a desire to improve it. And yet there were inquisitive ones. For example, the Greek sponge diver G. Dimos. Of course, having critically assessed its mechanism, many will find in it a weak study of individual nodes. But who knows, maybe such an engine will someday get the right to exist if other inventors join in its improvement?

Pedal boat drawing: 1 - boat body, 2 - bevel gear reducer, 3 - belt, 4 - wheel, 5 - thrust, 6 - left crank, 7 - rack, 8 - pedals, 9 - drive housing, 10 - right connecting rod and 11 - flywheel.

What is the invention of Dimos? This is a pedal drive. Sitting in the boat, the rower rests on the pedals with his feet and, pressing either the right or the left through the rods and connecting rods, rotates the wheel. It is paired with a flywheel, which allows you to maintain a constant speed. Further, the belt drive transmits rotation to the input shaft of the gearbox and to the propeller.

Are there any advantages to such a mover in comparison with the oar? In our opinion, there is. And as many as three. The first and, perhaps, the most significant - the rower in the boat sits facing the direction of travel. And it is very convenient for management. Another benefit - the speed of the boat on the pedals will undoubtedly be higher. After all, the force created by the legs is noticeably greater. Due to the overdrive, the propeller speed can be achieved at 200-300 min-1. This is quite enough for the boat to move at a speed of 15 km / h. And finally, the last - the hands of the rower are free. And this is not so bad, especially when fishing or hunting.

Unfortunately, we cannot provide a detailed design development. After all, the invention itself does not require this. But even such a brief description and plus drawings will help craftsmen to take it into service.

Author: V.Zavorotov

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