Swimming assistance apparatus

Abstract

Disclosed is a swimming assistance apparatus, which is worn on a user's both feet to provide the user with buoyancy, such that the user can float on water and swim in a good swimming style while repeatedly moving the waist from side to side like a fish, thereby reinforcing the user's waist muscles. Persons who have knee joint arthralgia or backache or persons who have disability in the lower body can use the swimming assistance apparatus for medical purposes, such as pain relief or treatment.

What is claimed is: 
     
         1 . A swimming assistance apparatus comprising:
 a body made of a material which floats on water or formed in a hollow tube type which floats on water;   a fitting hole formed in a hollow cylinder shape and penetrating through the body to surround a part of a user's lower body; and   a cut part formed in the wall of one side of the fitting hole in such a way that a part of the user's lower body can be inserted into the fitting hole,   wherein when the user swims in a state where the user's lower body is inserted into the fitting hole, the user's lower body floats on water by buoyancy of the body.   
     
     
         2 . The swimming assistance apparatus as claimed in  claim 1 , wherein the fitting hole comprises a first fitting hole and a second fitting hole configured in such a manner that the user can insert the right and left legs into the first and second fitting holes respectively, and the user's legs are collected and fixed by the first and second fitting holes. 
     
     
         3 . The swimming assistance apparatus as claimed in  claim 1 , wherein the fitting hole comprises a first fitting hole and a second fitting hole configured in such a manner that the user can insert the right and left legs into the first and second fitting holes respectively,
 wherein the body is configured to be divided between the first and second fitting holes,   wherein the swimming assistance apparatus further comprises detachable fixing means formed on each inner face of the divided body,   wherein the detachable fixing means is one of Velcro tapes, magnets, buttons, male and female coupling parts, hooks and zippers which can attach and detach the first and second fitting holes.   
     
     
         4 . The swimming assistance apparatus as claimed in  claim 1 , wherein the cut part is formed in the outer wall of the fitting hole in the longitudinal direction of the fitting hole to enable the user to easily insert the user's lower body. 
     
     
         5 . The swimming assistance apparatus as claimed in  claim 1 , wherein the fitting hole comprises a first fitting hole and a second fitting hole configured in such a manner that the user can insert the right and left legs into the first and second fitting holes respectively,
 wherein the cut part comprises at least one of a first cut part formed in one side wall of the first fitting hole and a second cut part formed in one side wall of the second fitting hole, and   wherein at least one among the first and second cut parts is respectively formed in the upper side wall of the first fitting hole and the second fitting hole to enable the user to easily put the user's lower body thereon.   
     
     
         6 . The swimming assistance apparatus as claimed in  claim 1 , wherein the fitting hole comprises a first fitting hole and a second fitting hole configured in such a manner that the user can insert the right and left legs into the first and second fitting holes respectively,
 wherein the cut part comprises first and second cut parts respectively formed in the side walls of the first and second fitting holes, and   wherein the first cut part is formed in the upper side wall of the first fitting hole and the second cut part is formed in the lower side wall of the second fitting hole.   
     
     
         7 . The swimming assistance apparatus as claimed in  claim 1 , further comprising:
 a plurality of protrusion parts which are formed on the inner face of the fitting hole in the diameter direction and extend in the longitudinal direction of the fitting hole so as to provide the user's lower body with comfort and enhance fixation power of the user's lower body.   
     
     
         8 . The swimming assistance apparatus as claimed in  claim 1 , further comprising:
 a plurality of protrusion parts which are formed on the inner face of the fitting hole in the diameter direction and are formed in a spherical shape so as to provide the user's lower body with comfort and enhance fixation power of the user's lower body.   
     
     
         9 . The swimming assistance apparatus as claimed in  claim 1 , further comprising:
 a plurality of protrusion parts which are formed on the inner face of the fitting hole in the diameter direction and extend spirally in the longitudinal direction of the fitting hole so as to provide the user's lower body with comfort and enhance fixation power of the user's lower body.   
     
     
         10 . The swimming assistance apparatus as claimed in  claim 1 , further comprising at least one among:
 wings formed at both sides of the body in the longitudinal direction and have a predetermined curvature at the front face, which is the user's advancing direction, in order to reduce underwater resistance; and   at least one of fins which vertically protrude from the upper side and the lower side of the middle part of the body and have a predetermined curvature at the front face, which is the user's advancing direction, in order to reduce underwater resistance.   
     
     
         11 . The swimming assistance apparatus as claimed in  claim 1 , wherein the body is formed in a flat board type and the fitting hole is formed to get in contact with one side of the body,
 wherein the swimming assistance apparatus further comprises,   wings formed at both sides of the body in the longitudinal direction and have a predetermined curvature at the front face, which is the user's advancing direction, in order to reduce underwater resistance.   
     
     
         12 . The swimming assistance apparatus as claimed in  claim 1 , wherein the fitting hole comprises a first fitting hole and a second fitting hole configured in such a manner that the user can insert the right and left legs into the first and second fitting holes respectively,
 wherein the swimming assistance apparatus further comprises,   a through hole formed in the body and penetrating through the inside of the body between the first fitting hole and the second fitting hole, so as to reduce underwater resistance generated in the user's advancing direction.   
     
     
         13 . The swimming assistance apparatus as claimed in  claim 1 , further comprising:
 at least one hand-grip depressed in one side of the body or penetrates through the body, such that the user can insert at least one finger into the hand-grip to grasp the body.   
     
     
         14 . The swimming assistance apparatus as claimed in  claim 1 , further comprising at least one among:
 wings formed at both sides of the body in the longitudinal direction and have a predetermined curvature at the front face, which is the user's advancing direction, in order to reduce underwater resistance; and   at least one of fins which vertically protrude from the upper side and the lower side of the middle part of the body and have a predetermined curvature at the front face, which is the user's advancing direction, in order to reduce underwater resistance, thereby offsetting a rotational force around the user's advancing direction, and   wherein the swimming assistance apparatus further comprises,   at least one hand-grip depressed in one side of the wing or the fin or penetrates through the wing or the fin, such that the user can insert at least one finger into the hand-grip to grasp the body.   
     
     
         15 . The swimming assistance apparatus as claimed in  claim 1 , further comprising:
 a plate type partition wall formed inside the hollow body for maintaining the form of the body and relieving distortion of the body.   
     
     
         16 . The swimming assistance apparatus as claimed in  claim 1 , further comprising:
 a plurality of plate type partition walls formed inside the hollow body for maintaining the form of the body and relieving distortion of the body,   wherein the plurality of partition walls cross each other.   
     
     
         17 . The swimming assistance apparatus as claimed in  claim 1 , further comprising:
 a plurality of plate type partition walls formed inside the hollow body for maintaining the form of the body and relieving distortion of the body,   wherein the plurality of partition walls are connected with one another in a honey comb shape.   
     
     
         18 . The swimming assistance apparatus as claimed in  claim 1 , further comprising:
 separation preventing means disposed at one side of the cut part to close the cut part and prevents the inserted user's lower body from being separated from the cut part.   
     
     
         19 . The swimming assistance apparatus as claimed in  claim 18 , wherein the separation preventing means is one of Velcro tapes, magnets, buttons, male and female coupling parts, hooks and zippers. 
     
     
         20 . The swimming assistance apparatus as claimed in  claim 1 , wherein the fitting hole comprises a first fitting hole and a second fitting hole configured in such a manner that the user can insert the right and left legs into the first and second fitting holes respectively,
 wherein the swimming assistance apparatus further comprises,   a depressed part inwardly depressed to a specific depth between the first fitting hole and the second fitting hole of the body, such that the user inserts and fixes a part of the user's lower body into the first fitting hole and the second fitting hole or compresses and fixes a part of the user's lower body to the depressed part.