RU2532991C2 - Water bike - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to floating crafts, namely to water bikes designed for active rest and riding over water surface. The water bike contains floats fastened by cross members, seat and pedal propeller, as well as driving sprocket, swinging arm, a pair of enveloping sprockets, cantilevered axle, bushing with driven sprocket, free-wheel clutch, screw-propeller and round-link welded calibrated chain. The swinging arm is installed together with a pair of enveloping sprockets on the cross member and is made capable to recline back. The lower end of swinging arm contains axle. On the cantilevered portion of axle, bushing is installed which is rigidly connected with driven sprocket and is made capable of axial rotation and interaction with screw-propeller via free-wheel clutch. The pedal propeller contains driving sprocket which interacts with round-link welded calibrated chain the branches of which are hitched over enveloping sprockets and close on driven sprocket.

EFFECT: improvement of ride performance, noiselessness of propeller operation, high efficiency, high metacentric stability, ease of transportation, protection of propeller components during collisions with obstacles, structural simplicity.

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Description

The present invention relates to floating equipment, namely to pedal boats, designed for outdoor activities and walks on the water surface

Famous pedal boats by SAVA are email: lodka-sava@mail.ru , which contain a monolithic plastic catamaran body with pedal paddle drive. The simplicity of design, low cost of manufacture and reliability in operation bribes entrepreneurs to organize rental points - analogues.

However, well-known pedal boats are unacceptable to the individual consumer for the following reasons. The dimensions of water bikes exclude the transportation of the latter in a personal car. Storage of a water bike requires a pier, which is an obstacle for most individuals. The vane drive has a low efficiency, creates more spray and noise. The blades slap on the water and disperse the fish present, i.e. for fishermen, this floating tool is not a gift.

Also known for the fastest pedalo, which is driven by muscular energy through a pedal drive: “Decavitator”. The decavitator contains a two-blade pushing propeller and a hydrofoil system (see http://lancet.mit.edu/decavitator/text/dupont writeup.txt ) - an analogue.

With excellent speed characteristics, this device will not be called a floating tool. The latter probably does not swim, but flies so low. The structural and technological complexity, as well as the delivery problem, makes it unsuitable for the purpose of application, for example, when fishing, and delivery to the place by a personal passenger car is also difficult.

Closest to the proposed structural solution is a pedalo, which contains floats fastened by transverse beams, on which there is a seat and a blade propeller. The blade mover contains levers, at the ends of which there are pedals with brackets and is made in the form of plates mounted on the lever with the possibility of rotation relative to the axis of attachment. The ends of each transverse beam are made in the form of rings that span the floats. The inner diameter of each ring is less than the diameter of the float (see Russian patent No.2009960, class B63H 16/10 of 08/08/1990 - prototype).

The blade propeller, which is made in the form of plates mounted on a lever with the possibility of rotation relative to the axis of attachment. During the movement of the plate create noise. The plates beat about the axis during reciprocating motion: the likeness of valves. This principle of motion has low efficiency, since the reciprocating movement of the recessed plates perceives water resistance. Multi-element propulsion structure reduces reliability. The trajectory of the legs that are held on the pedals with special brackets is unusual, as it differs from the trajectory when walking, for this reason the swimmer quickly gets tired. The whole set of negative parameters makes the well-known pedalo unacceptable.

The purpose of the proposed technical solution: improving driving performance, quiet operation of the propulsion device, high efficiency, high stability, ease of transportation, security of the propulsion elements in a collision with obstacles, structural simplicity.

The technical solution is illustrated by graphic material, in which Fig. 1 shows a pedalo in longitudinal section, and Fig. 2 shows a cross section in the region of the envelope sprockets.

The pedalo contains floats 1 fastened by transverse beams 2 and 3 in the form of a catamaran. On the rear transverse beam 2 there is a seat 4 and a tiller (not shown conditionally, because it did not fall into the cross section on the graphic material), and on the front transverse beam 3 there is a pedal mover 5. On the rear transverse beam 2 under the seat 4 there is a swing arm 6 and a pair of envelope sprockets 7. The swinging arm 6 is configured to swing back. The lower end of the swinging arm 6 comprises an axis 8. A sleeve 9 is mounted on the console portion of the axis 8, which is rigidly connected to the driven sprocket 10. On the sleeve 9, it is axially rotatable and cooperates through an overrunning clutch with a propeller 11. The pedal mover 5 contains a driving sprocket 12, which interacts with a round link welded calibrated chain 13. The branches of the endless drive chain 13 are thrown through the envelope sprockets 7 and are closed on the driven sprocket 10.

The work of the proposed technical solution is as follows. The water bike delivered to the pond, lying on the shore, is supported by the lower surface of the floats 1. The swinging arm 6 is folded back and protects the propeller 11 from damage.

In the same way, the propeller 11 is protected when transporting a pedalo on the trunk of a car. Faced the water bike on the water surface, comfortably sitting on seat 4, we begin to pedal. The swinging bracket 6 under its own weight takes the working position (see figure 1). The moment of rotation from the drive sprocket 12 is transmitted to the driven sprocket 10 by means of an endless round-link welded calibrated chain 13. The sleeve 9 rotates together with the driven sprocket 10, which is connected together, and through the overrunning clutch rotates the propeller 11. The propeller 11 is completely immersed in the aquatic environment, at the same time, no spray is created and the water bike glides silently along the water surface. The constructive solution allows for contours of Charpy-type floats at speeds above 15 km / h to enter the planing mode, which will reduce the pedaling force by more than two times. The freewheel clutch eliminates the sharp braking of the water bike when the pedaling stops, which ensures gliding along the water surface under the action of inertia forces. The welded round link calibrated circuit 13 provides torque transmission from the drive sprocket 12 to the driven sprocket 10, the planes of which are mutually perpendicular. When colliding with an obstacle, the swinging bracket 6 is deflected, while maintaining the integrity of the propeller 11.

The catamaran pedal bike is indispensable for the fisherman tribe. High stability due to low landing qualitatively distinguishes the catamaran from the well-known pedal boats. The proposed pedal boat has excellent driving performance. High efficiency, the propeller's protection against breakdowns and the absence of noise from the slaps of the blades on the water does not scare the fish. And the ability to transport on the trunk of a car turns the proposed catamaran into a coveted device for the mass consumer.

Claims (1)

A pedal boat containing floats fastened by transverse beams, a seat and a pedal mover, characterized in that it is equipped with a drive sprocket, a swinging arm, a pair of envelope sprockets, a cantilever axis, a sleeve with a driven sprocket, an overrunning clutch, a propeller and a round link welded calibrated chain, however the swing arm is mounted together with a pair of envelope sprockets on the transverse beam and is configured to swing back, while the cantilever axis is mounted on the lower end of the swing arm It, the sleeve is rigidly connected to the driven sprocket and mounted on the cantilever axis, and is made with the possibility of axial rotation and interaction through an overrunning clutch with a propeller, and a sprocket mounted on the pedal mover that interacts with a welded round link calibrated chain whose branches are thrown through the envelopes asterisks and are closed on a conducted asterisk.

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