RU2520849C1 - Water bike - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: water bike includes floats fasten together by cross-members, seat and pedal propulsor. The pedal propulsor is equipped with driving sprocket, swinging arm, set of enveloping sprockets, steering tiller, console axle, bushing with driven sprocket, freewheel clutch, screw-propeller and round-link welded calibrated chain. The steering tiller is made capable to rotate on axle which is mounted on rear cross-member. The swinging arm is connected with steering tiller via axle and capable to be reclined. On console section of axle bushing is installed which is rigidly connected with drive sprocket. The bushing is made capable of axial rotation and interaction with screw-propeller via freewheel clutch. Driving sprocket is installed on pedal propulsor and interacts with round-link welded calibrated chain. Branches of round-link welded calibrated chain are hitched over set of enveloping sprockets and close on driven sprocket which is immovable relative to bushing. Enveloping sprockets make mutually perpendicular pairs whereas two pairs of enveloping sprockets are located in the plane perpendicular to driving sprocket plane.

EFFECT: improved maneuvering characteristics.

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Description

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

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

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 propulsion. 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 smaller than the diameter of the float (see Russian patent No.2009960, class B63H 16/10, from 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 is to improve maneuverability while achieving structural simplicity.

The technical solution is illustrated by graphic material, where Fig. 1 shows a longitudinal longitudinal section of a water ligrade, and Fig. 2 shows a top view of a pedal mover when performing a maneuver.

The pedal mover 4 contains fasteners 5 fastened by transverse beams 2 in the form of a catamaran, seat 3 and pedal mover 4. Pedal mover 4 contains a drive sprocket 5, which is mounted on the front crossbeam 5. The water ligature is equipped with a swing arm 6 and contains a set of envelope sprockets 7, which are mounted on the tiller 8, which in turn is mounted on the rear transverse beam 2. The tiller 8 is rotatable on an axis that is mounted on the rear transverse beam 2. The swinging arm 6 is connected to umpel 8 through the axis and is configured to tilt back. The lower end of the swinging bracket 6 contains a cantilever axis 9. On the cantilever section of the axis 9, a sleeve 10 is mounted that is rigidly connected to the driven sprocket 11. The sleeve 10 is configured to axially rotate and interact through overrunning clutch 12 with a propeller 13. The drive sprocket 5 is mounted on pedal mover 4 and interacts with the round link welded calibrated chain 14. The branches of the endless round link welded calibrated chain 14 are thrown through a set of envelope sprockets 7 and are closed on the driven sprocket 11, to which is stationary relative to the sleeve 10. Envelope sprockets 7 are mutually perpendicular pairs, moreover, two pairs of envelope sprockets 7 are located in a plane perpendicular to the plane of the drive sprocket 5. Each pair of envelope sprockets 7 interacts with one of the two branches of a round-link welded calibrated chain 14, descending from the leading sprockets 5.

The work of the proposed technical solution is as follows. A pedal boat delivered to a pond lying on the shore is supported by the bottom 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 13 is protected when transporting a pedalo on the trunk of a car. Faced the pedal boat on the water surface, comfortably sitting on seat 3, 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 5 is transmitted to the driven sprocket 11 by means of an endless round-link welded calibrated chain 14. The sleeve 10 rotates together with the driven sprocket 11, which is connected together, and through the overrunning clutch 12 rotates the propeller 13. The propeller 13 is completely immersed in the water , 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 reach 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 chain 14 provides torque transmission from the drive sprocket 5 to the driven sprocket 11, the planes of which are mutually perpendicular. When colliding with an obstacle, the swinging arm 6 is deflected, while maintaining the integrity of the propeller 13.

Maneuvering the water surface is as follows. Convenient tiller handles 8 deviate to either side according to the intended maneuver. Changes in the distance of the running branch of a round-link welded calibrated chain 14 from the driving sprocket 5 to the corresponding pair of envelope sprockets 7 are equal, otherwise the distance of one of the branches decreases by how much the distance of the other branch increases. At the same time, the tension of the branches remains almost unchanged and the orientation of the individual links is maintained, therefore, slipping during gearing of the teeth of all sprockets is excluded. The design solution provides a cool maneuver with the relative simplicity of the design. The high maneuverability of the water ligade qualitatively differs from the well-known water bicycles.

The catamaran pedal ligade is indispensable for the fisherman tribe. The high ability to change direction and describe a steeper trajectory without the use of classic handlebars allows you to turn and maneuver literally in place, as well as high stability due to low landing qualitatively distinguishes a catamaran from 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 is characterized in that it is equipped with a drive sprocket, a swinging arm, a set of envelope sprockets, a tiller, a cantilever axle, a hub with a driven sprocket, an overrunning clutch, a propeller and a round link welded calibrated chain :
- envelope sprockets are mutually perpendicular pairs that are built into the tiller, which is mounted on the transverse beam;
- two pairs of envelope sprockets located in a plane perpendicular to the plane of the drive sprocket, each pair interacting with one of the two branches of a welded round calibrated chain descending from the drive sprocket;
- the swinging arm is mounted directly on the tiller with the possibility of deflection back;
- the cantilever axis is mounted on the lower end of the swing arm;
- the sleeve is rigidly connected to the driven sprocket, mounted on the cantilever axis and made with the possibility of axial rotation and interaction through an overrunning clutch with a propeller, and the driving sprocket is mounted on the foot switch and made with the possibility of interaction with a round-link welded calibrated chain, the branches of which are thrown over the kit envelope sprockets and are closed on the driven sprocket, which is stationary relative to the sleeve.

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