DE2526334A1 - Manually propelled pleasure float - with horizontal flipper coupled to foot pedal for operator standing on treadle - Google Patents

Abstract

The manually propelled float has a shallow, elliptical shape on which the operator stands. The shape can be assembled from clip together components, and the rear section is deeper to take the weight of the operator. The operator stands on a horizontally pivotted treadle which is coupled to a flexible, horizontal flipper (g) under the rear of the craft. Operation of the treadle moves the flipper vertically to drive the craft. A single steering handle (i) through the float operates a profiled steering float (k) under the craft to alter the drag and effectively steer the craft. The treadle presses down below the waterline and rag is reduced by a channel open to the rear.

Description

Re: patent application - paddle boat with fin drive - description State of the art: For recreational activities on lakes, rivers, park waters, holiday centers etc. environmentally friendly pedal boats of various designs are used.

There are seat boats for one or more people, who are by one Pedal mechanism driven by a paddle wheel, water propeller or paddle screw will.

Innovation: The fin-powered pedal boat Fig.l-5 consists of one elliptical, unsinkable, flat floating body (s) made of plastic in a fully or hollow chamber construction is made. Timber construction is possible at any time.

The float has a load capacity of approx. 130 kp with a Length of 3200 mm and a width of 110 mm.

The flat float, which bulges out more on the underside towards the stern enables a relocation of the center of gravity to the rear half of the Boats. Fig. 1.

Optionally, the swimming body can also consist of two halves that go through Quick-release fasteners exist, with the dividing line on the small one The diameter of the ellipse runs in Fig. 2-3 (a). This makes transport more compact and space-saving storage possible.

On top of the float is located in the rear Half of a recess (b) in which the footboard (c) is arranged such that it is flush with the surface of the boat.

The footboard is made of plastic and is rotatably mounted, whereby the axis of rotation (d) runs parallel to the small diameter of the ellipse. Its surface is non-slip with a relief pattern.

The recess (b) is shaped such that the longitudinal section highest point under the footboard axis (d), and the lowest point under the pivotable ones Ends of the footboard.

The footboard ripped approx. 15 from the zero position upwards or

turn down. It carries two bearing blocks that are firmly attached to the The boat anchored bolts can be rotated and locked with hub screws.

A tunnel-shaped opening leads from the rear recess (b) Fig. 3 and 5 (e) in keel line through the float and ends at the bottom.

In the breakthrough, the water level reaches the when the boat is loaded same height as that. the water surrounding the root. When driving forwards arises no water stagnation in this room because that Water through the tunnel can flow to the stern.

Is longitudinally under the footboard and transversely to the axis of rotation of the footboard A tubular lever Fig.5 (f) made of aluminum or stainless steel in just a few steps Steel with oval upright profile can be screwed on.

The tubular lever extends through the tunnel in the form of a floor arch the bottom of the boat and ends at the stern. This pipe lever can be opened and move off by placing the footboard in its pivot bearing by shifting your weight each foot of an operator is moved up and down.

The dolphin's fin principle serves as propulsion with a horizontal Caudal fin.

The tail fin that can be attached and locked onto the rear end of the tube lever Fig.l-5 (g) consists of elastic plastic or hard rubber and has the width of the boat. The self-buoyancy of the fin keeps it in the floating position.

On the top of the boat are in the middle of the footboard two through holes in front of each other, fig. 2 and 5 (h). These holes each serve individually used to hold the rotatably mounted, combined holding and steering rod made of aluminum or stainless. Steel Fig.1,2,4,5 (i). The hole closer to the bow is used for people with longer arms.

A Center rudder Fig.1,2,4,5 (k) made of plastic attached and locked. nd the handlebar is bent backwards in the form of a tier arch so that it how a crank can be turned by hand in the through hole.

At the upper end, the holding rod carries an anatomically shaped one The upper end of the crank is slightly bent over towards the bow in the zero position. This prevents the handle from swinging back and forth when driving straight ahead.

A slight pull to the rear is enough to get around the handrail and thus the To give the rudder a stable position. The boat sprints through the keel line Rude. Turning the handle to the right or left turns the boat into a right or left curve printed. Cornering is assisted by the operator shifted the body's center of gravity towards the center of the curve.

If the handle is turned quickly by 90, it moves out of the zero position this is perpendicular to the direction of travel and brakes the boat Fig.4.

The one-man pedal boat is due to its flat water surface Hardly capsize although the center of gravity is approx. 1200 mm above the surface of the boat lies.

Rolling waves cannot sink the boat.

Another advantage is the low deployment draft of only 2-8o mm with stepped fin. The use of the boat does not require anything special Jetty but it can be done from any flat bank.

The shape of the footboard is tapered towards the rear, so that at the rear one foot has enough space. The footboard widens towards the front, like this that the operating person in a step inclined position the front foot for weight shift can move.

The pedal boat can be dismantled quickly and easily into its individual parts nd reassemble the same way.

At the bow and stern there are through holes Fig. 2 and 5 (1) for fastening a leash provided.

The mechanism does not require any maintenance or lubrication.

The buoyancy is such that the boat can be carried by a second person in front can wear if necessary.

The powerful tube lever with the dolphin fin causes good craning of the pedal boat: By stepping down the front surface of the pedal board, the fin becomes lifted towards the surface of the water. This causes the bow to be lifted slightly from the water Fig.5 (m) and, due to the corrugation principle, mediates the elastic Fin the propulsion (R).

This process is supported by the longer lever on the front Pedal board surface and the own buoyancy of the fin.

By stepping down the rear surface of the footboard, you will also propulsion done (R '). Here the bow is pressed onto the water.

Once the boat has started to move, the pedal strokes or the fin deflections can occur run smaller.

The materials are chosen so that seawater does not harm the boat Boot is absolutely wrinkle-friendly because no lubricants are required.

Protection claims:

Claims (12)

S c h u t z a n s p r ü c h e 1.) Pedal boat with fin drive through it characterized in that a float (s) for the transport of one or more People through a horizontal, up and down to be moved at the stern under the waterline Fin (g), similar to a dolphin's tail fin or with a different shape, in front is driven. 2.) Pedal boat with fin drive as described in claim 1.) thereby marked that the pedal boat by means of the physical strength of a standing person a footboard (c) rotatably mounted transversely to the direction of travel, and one on it attached, in the keel line up and down movable pipe lever (f), which on his up to the stern below the water surface reaching end a lockable horizontal Fin (g) carries, is driven. 3.) Pedal boat with fin drive as described in claims 1.-2.) characterized in that the flat, elliptical, in one piece or from two separable bodies consisting of floating body (s) made of plastic in full construction e.g. Rigid foam or hollow chamber construction or based on other technologies If the float is made of two parts, the Parting line (a) over the small diameter of the elliptical floor plan of the boat both bodies can be joined together using quick-release fasteners. The float (s) is unsinkable. 4.) Pedal boat with fin drive as described in responses 1.-3.) characterized in that the floating body (s) loaded with a person over its entire length is approx. loo (mm) out of the water and on the underside of the Heck has a greater water displacement, so that the center of gravity can be laid on the top in the half of the boat facing the stern. 5.) Pedal boat with fin drive as described in claims 1.-4.) characterized in that the float (s) is in the half facing the stern has a recess (b) on the top, in which a footboard (c), the center on an axis of rotation (d) that is parallel to the small diameter of the boat, can be moved up and down. The highest point of the depression (b) is in the longitudinal section. under the axis of rotation (d) and the two lowest points under the two rounds of the Footboard. 6.) Pedal boat with fin drive as described in claims 1.-5.) characterized in that the non-slip footboard (c) on the one facing the rear The surface is narrower and allows space for one foot, and the one facing the bow Flat is wider so that space is allowed for two feet. 7.) Pedal boat with fin drive as described in claims 1.-6.) characterized in that the axis of rotation (d) of the footboard (d) is asymmetrical in the back of the board so that. there is a longer lever arm at the front. 8.) Pedal boat with fin drive as described in claims 1.-7.) characterized in that, on the underside of the footboard (c), there are two bearing blocks are arranged in the axis of rotation (d), which are firmly screwed to the boat on two The pin can be rotated and locked in place with the hub screws. The operation The hand knob - hub screws are made through two hand holes (n) in the footboard (c). 9.) Pedal boat with fin drive as described in claims 1-8.) characterized by daP-. the float (s) from the rear recess of the footboard space (b) a tunnel-shaped opening running in the keel line (e) to the bottom of the boat, in which the tube lever (f) up and down can be moved. 10.) Pedal boat with fin drive as described in claims 1.-9.) characterized in that the horizontal drive fin (g) is made of elastic plastic or made of rubber. 11.) Pedal boat with fin drive as described in claims l.-lo.) characterized in that the floating body (s) has two - or more round holes - Has breakthroughs (h) on the longitudinal center line in front of each other in the direction of Bow in front of the footboard (c) are arranged. These through holes serve as pivot bearings for the handrail (1) and can optionally depending on the arm length of the operator be used. 12.) Pedal boat with fin drive as described in claims 1. -11.) characterized in that the insertable, crank-shaped holding rod with a handle (i) rotatable in the round hole - breakthrough (h) of the float (s) is gelgert, and a centrally mounted rudder (k) is attached to its tube end protruding on the keel side and is locked. The rotatably mounted support rod (i) is thereby at the same time a rudder - handlebar.