Swim simulator with breathing practice function

Abstract

The invention is related to a swimming teaching apparatus which provides user to make a complete swimming like action on land. The special technical features are a body rotation mechanism, arms guide, a breathing sink and a kick pad for legs, all together to perform on land swimming exercise. All strokes can be skilled with a precise instruction by the coach when the user is stationary on the invention. The invention allows user to do continuous practice of the swimming movements without be interrupted by a breathing problem, when the arms and legs are well coordinated, breathing sink then add to exercise, user can do combined actions slowly to ensure the correctness. The invention is tried to substitute the buoyancy of water as a pre-training machine for those schools which have no swimming pools can still carry out swimming courses for their students to reduce drowning incidents.

What is claimed is: 
     
         1 . An apparatus for practice the freestyle and backstroke by a user on land, comprising:
 a high to low inclined board for supporting the user's full body length which has a forefront opening.   On the upper surface of the inclined board, successively installed, from front to back are:   a horizontal hand stay,   a swimming breathing sink,   an upper body rotation mechanism,   a lower body supporting pad, and   an arm and hand guide module.   
     
     
         2 . The apparatus of  claim 1  wherein the inclined board is an downward inclined surface from front to back, by using several decreasing length of inverted T-shaped bench legs for supporting the inclined board. 
     
     
         3 . The apparatus of  claim 1  wherein the horizontal hand stay consists of a set of telescopic rails and a palm rest plate installed horizontally at the forefront of the inclined board so that the palm rest plate is adjustable in length and may lead the arm keeping straight and horizontal, helping the hand reducing ahead resistance and waiting for starting the next arm cycle movement of swimming. 
     
     
         4 . The apparatus of  claim 1  wherein the arm and hand guide module comprises a pair of linear motion systems fitted with paddles and shell pulleys. Each linear motion system comprises a sliding element and a guide rail, a paddle is fixed on top of the sliding element and a shell pulley is installed at the front end of the guide rail, an inelastic rope passes through the two shell pulleys and connects to the two sliding elements. The two paddles are tracked with each other and guide the arms and hands doing an alternating back and forth swimming movement. 
     
     
         5 . For freestyle, the apparatus of  claim 4  wherein the arm and hand guide module are installed under the inclined board. 
     
     
         6 . For backstroke, the apparatus of  claim 4  wherein the arm and hand guide module are supported by separate level stands or invert suspended by separate inverted suspension brackets outside the inclined board and parallel to the longitudinal center line of the inclined board, the inelastic rope is longer than the one used in freestyle for a wider arrangement of the two guide rails. 
     
     
         7 . The apparatus of  claim 1  wherein the swimming breathing sink is secured above the inclined board's forefront opening by blocking things and provide the user a chance to practice swimming breathing on land while he can see through the forefront opening from the breathing sink water for a good vision just like swimming. 
     
     
         8 . For backstroke, the apparatus of  claim 1  wherein the swimming breathing sink is no longer needed and is replaced with a pillow for support the face up head. 
     
     
         9 . The apparatus of  claim 1  wherein the body rotation mechanism is a mutual rolling system, comprising two parts, the above part for rotating the body of a user and the under part for rotating the above part, both of the two will rotate around their own rotation centers when move together. 
     
     
         10 . The apparatus of  claim 9  wherein the above part comprises an arc panel and a detachable column pad joined in its concave surface for supporting and rotating the user's body. 
     
     
         11 . The apparatus of  claim 9  wherein the under part comprises a combination of all kinds of itself can be rolled elements, fixed on a base frame to form an arc support surface for supporting the above arc panel and rotating the above arc panel. 
     
     
         12 . The apparatus of  claim 10  wherein the arc panel which further includes blocking things Protruding from the holes of the arc panel's both transverse sides and can be blocked by the under part to get the desired rotation angle and avoid the arc panel from oversetting. 
     
     
         13 . The apparatus of  claim 9  wherein a rolling barrier component is fixed immediately after the body rotation mechanism and is in contact with the back edge of the arc panel to avoid the arc panel backward sliding and can guide the arc penal to roll side to side smoothly. 
     
     
         14 . The apparatus of  claim 1  wherein the lower body supporting pad is a kick pad with a inclined surface which has a further downward inclined angle according to the inclined board surface for the legs to do alternating kick with instep flat on the pad surface. 
     
     
         15 . An apparatus for practice the butterfly and breaststroke by a user on land, comprising:
 a high to low inclined board for supporting the user's full body length which has a forefront opening as in  claim 1 .   On the upper surface of the inclined board, successively installed, from front to back are:   a horizontal hand stay as in  claim 1 ,   a swimming breathing sink as in  claim 1 ,   a not rotating regular torso pad for supporting the upper body   a lower body supporting pad, and   an arm and hand guide module as in  claim 1 .   
     
     
         16 . For the butterfly legs kick, the apparatus of  claim 15  wherein the lower body supporting pad is the same as in  claim 1 . 
     
     
         17 . For the breaststroke legs kick practice, the apparatus of  claim 15  wherein the lower body supporting pad is a pad with a larger surface area on bottom gradually converge to a smaller surface area on top which allows both legs retract to the front along the pad's sides and let straight and closed legs to stay on top of the smaller area after kick. 
     
     
         18 . The apparatus of  claim 15  wherein the arm and hand guide module is the same as in claim.  1  except the connecting rope is replaced with an elastic one to make the two paddles doing a synchronized motion and is installed under the inclined board. 
     
     
         19 . For simplified training for freestyle and backstroke, an apparatus for practice the basic coordination of arms and hands of swimming with the body rotation mechanism by a user on land, comprising:
 a board with inverted T shaped legs for supporting the user's full body length.   an upper body rotation mechanism as in  claim 1  installed on the top surface of the board.