Abstract:
A device for moving on water has two elements formed as skis in form of floats, lever means connecting the floats with one another, and elastic accumulating means associated with the lever means, so that energy is accumulated when one of the floats is stalled and is given back when another of the floats moves forward.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     The present invention generally relates to devices for moving on water.  
         [0002]     Devices for walking on water are known. Such devices are usually formed as flows. Sometimes, poles with floats are used to maintain equilibrium. Since during movement on water there is no stationary friction, it is difficult to maintain equilibrium on the floats when the person stands. Also, the speed of movement is relatively low since the weight of floats is, due to water content about 100 liter, relatively high and therefore inertia forces during walking are higher than inertia forces during normal walking on land. It is believed that this why the devices have not been broadly used. It is therefore advisable to improve the existing devices for moving on water.  
       SUMMARY OF THE INVENTION  
       [0003]     It is an object of the present invention to provide a personal device for movement on water, which eliminates the disadvantages of the prior art.  
         [0004]     In keeping with these objects and with others which will become apparent hereinafter, one feature of the present invention resides, briefly stated, in a device for moving of water, which includes two skis formed as floats; means for connecting said floats with one another; and elastic energy accumulators associated with said connecting means for accumulating energy and then releasing it.  
         [0005]     When the device is designed in accordance with the present invention, it is much more efficient than the existing devices.  
         [0006]     The novel features which are considered as characteristic for the present invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.  
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0007]      FIGS. 1   a,    1   b,    1   c  are a side view, a plan view and an end view of a device for moving on water in accordance with the present invention in an active position;  
         [0008]      FIGS. 2   a  and  2   b  are a side view and a plan view of the device for moving on water in accordance with the present invention in a passive position;  
         [0009]      FIGS. 3-5  are a front view, a side view and an enlarged fragment of energy accumulating means of the inventive device.  
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0010]     A device for moving on water in accordance with the present invention has two elements which are formed substantially as floats  1  in form of skis. They are provided with mounts for shoes or feet  12 , which are arranged on a platform  6 . The floats  1  are connected with one another by levers  4 , interconnected by elastic energy accumulators  3  which will be explained later on. The levers  4  are fixed in active position by locks  5 .  
         [0011]     For increasing efficiency of the floats  1 , they are provided with displaceable blades  20 . When one of the floats  1  moves backwards, the blades under the action of water pressure assume an open position, which is fixed by stops  21  relative to the floats  1 . The displaceable blades  20  are located in chambers  22  and assist a user to push from water.  
         [0012]     Conventionally during corresponding movements of mechanical parts, the drive which in the present invention is a user, has to overcome losses on account of their inertia. In order to reduce the losses of this type, the device for moving on water in accordance with the present invention is provided with the above mentioned elastic energy accumulators  3 , which are connected with the floats  1  by the levers  4 .  
         [0013]     During movement in a stable mode, the elastic energy accumulators  3  accumulate energy when one of the floats  1  stalls, and give away the energy when the other of the floats  1  is accelerated. The elastic energy accumulators  3  provide one degree of freedom in active mode to prevent spreading of the floats  1  toward the sides, so as to maintain an allowed distance between them in a transverse direction.  
         [0014]     Chambers  11  for regulation of a water displacement and a position of the center of gravity of the floats can be provided inside the floats. They can be filled with water. Additional chambers are identified with reference numerals  7 . Holders  9  are attached to the platform  6  through connecting elements  8 .  
         [0015]     The speed of movement is proportional to the rigidity of the elastic energy accumulators and also depends on the ability of the user to compensate losses connected with the movement in water. The displaceable blades  20  freely swing relative to the skis  1 . They can be made with desired floating ability for easy collapsing, displacement, and low wear. The stops  21  can be formed by dampers to reduce noise during movement.  
         [0016]     The chambers  7  are formed as compartments for auxiliary equipment, such as for example a battery for power supply, communication means and/or illumination and signaling, audio and/or video equipment, devices for attaching fishing rods, navigation instruments, motors, tankers, and communication means. The chambers  7  are formed as sealed compartments and provided with covers  13 .  
         [0017]     The floats  1  can be provided with rudder blades  29  for changing direction of movement. The rudder blades  29  can swing around axles  15  placed on a plate  14 , to prevent damage that can be caused by obstacles. When the rudder blades  29  reach some obstacles, for example a sea bottom, they will automatically be taken out by generated forces, from the holder plate  24 . The rudder blades  29  are mounted in bearings supported by swinging blades  17  and a holding blade  24 .  
         [0018]     The direction of movement of the floats  1  can be chosen by moving a handle  26  to a desired position. This will cause turning of the levers  27  with the rudder blades  29  mounted on a rudder shaft  25  by links  10 . When the rudder blades  29  are moved in opposite direction, this can be used to slow down the floats.  
         [0019]     The handles  26  can be turned into inwards position in a passive mode shown in  FIGS. 2   a  and  2   b.    
         [0020]     The floats of the device in accordance with the present invention can be provided with a frame  18  and covered by a skin  23 . The inner space of the skis  1  can be partitioned by walls  19  to improve safety. It can be also filled with a foam. The skin  23  can be made of multi-layered panels.  
         [0021]     The levers  4  can be fixed in a position which coaxial with the axes of the elastic energy accumulators  3  so as to make possible an increase of distance between the floats  1  in the passive position. This provides for expansion of the area of use of the device. In the passive position, platforms  30  can be provided on the floats  1  so as to place on it an equipment, such as a sail, seats, loads, etc. The platforms  30  are mounted in the holders  31 .  
         [0022]      FIGS. 3-5  show details of the elastic energy accumulator. Each energy accumulator has a shaft  41  which is connected with a cover  49  by a flange  47  welded to a connector  45  and screws  48 . A spring holder  43  with a spring  44  is arranged at an opposite end of the shaft  41 . A bearing  50  is located on the spring holder  43 . A base  42  is connected with a connector  52  by a flange  51  and the screws  8 . The opposite end of the spring is connected to the base. The connectors  45  and  52  connect the base  42  and the cover  49  with the levers  4 .  
         [0023]     When the levers  4  turn relative to one another, the base  2  and the shaft  1  are turned, which leads to a winding or unwinding of the springs  43  so as to accumulate energy or to release energy correspondingly.  
         [0024]     It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of constructions differing from the types described above.  
         [0025]     While the invention has been illustrated and described as embodied in personal device for moving in water, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.  
         [0026]     Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.