Multifunctional sliding exercise machine

1. A multifunctional sliding exercise machine comprising: a pair of bodies which is formed in a symmetric shape and each body of the pair of bodies being hinge-coupled at one end thereof; a rotary shaft rotatably coupled at one end and another end thereof, respectively, to a pair of hinge units to which each body of the pair of bodies is hinge-coupled; and a pair of slide plates slidably coupled to respective top surfaces of each body of the pair of bodies; wherein each body of the pair of bodies includes a first frame including a pair of connection brackets respectively at each end thereof, a pair of rails, each rail being coupled at one end thereof to one side of the first frame so as to be spaced apart from each other by a predetermined distance, and a second frame coupled to another end of each rail of the pair of the rails; wherein a pair of guides is disposed at each body of the pair of bodies whereby each guide of the pair of guides is disposed at each of two sides of each body of the pair of bodies in such a manner as to be coupled at one end thereof to a side of the first frame and coupled at another end thereof to a side of the second frame; wherein each pair of guides respective to each body comprises a pair of extending sections formed at one end thereof, a support shaft is disposed between the pair of extending sections in such a manner as to be penetratingly coupled at one end and another end thereof to the pair of extending extensions, and a pair of rotating rollers is coupled to predetermined lengthwise positions of the support shaft in such a manner as to be spaced apart from each other by a predetermined distance; wherein a height adjustment support is installed at the pair of extending sections respective to each body of the pair of bodies; wherein the height adjustment support comprises: a pair of holders, one holder of which being rotatably coupled to the one end of the support shaft and the other holder of which being rotatably coupled to the another end of the support shaft; and a connection bar configured to interconnect the pair of holders; and wherein each holder of the pair of holders is formed in an isosceles triangular shape, any one of three vertices of each holder is coupled to the support shaft, and a rotating roller is coupled to any one of the remaining two vertices of each holder.

2. The multifunctional sliding exercise machine according to claim 1 , wherein each of the pair of guides is formed in a shape in which one or more inwardly convex sections and one or more outwardly convex sections are alternately arranged with each other along the lengthwise direction of the respective pair of guides.

3. The multifunctional sliding exercise machine according to claim 1 , wherein the rotary shaft comprises a pair of support plates eccentrically coupled to the pair of hinge units, respectively, and a connection plate configured to interconnect the pair of support plates, and

wherein the connection plate is formed in a shape in which both sides thereof are curved in a mutually symmetrical manner.

4. The multifunctional sliding exercise machine according to claim 1 , wherein a distance adjustment assembly is disposed at a predetermined lengthwise position of each of the pair of bodies to adjust a sliding distance of the pair of slid plates.

5. The multifunctional sliding exercise machine according to claim 4 , wherein the distance adjustment assembly respective to each body of the pair of the bodies comprises a stopper block coupled at one end thereof to a predetermined position of one side of the first frame and coupled at another end thereof to a predetermined position of one side of the second frame, and a stopper slidably coupled to any one rail of the pair of rails so that the stopper is inserted into any one of a plurality of stopper grooves formed on a top surface of the stopper block so as to be spaced apart from each other at predetermined intervals along a lengthwise direction of the stopper block to adjust the sliding distance of the pair of slide plates.

6. The multifunctional sliding exercise machine according to claim 5 , wherein each of the slide plates comprises a pair of movable members slidably coupled to each rail of the pair of rails and a plate coupled to top surfaces of each pair of movable members, and

wherein the plate comprises: first and second handles disposed at widthwise sides thereof so as to be opposed to each other; and a plurality of incised grooves formed at the widthwise sides of thereof at which the first and second handles are disposed, so as to allow the user to grip the first and second handles.

7. The multifunctional sliding exercise machine according to claim 6 , wherein the stopper comprises a seating protrusion formed on a side surface thereof so as to confront one of the movable members, and the one of the movable members comprises: a seating hole formed therein so as to confront the stopper; and a retaining step formed on an inner peripheral surface of the seating hole so as to suppress an additional advance of the seating protrusion inserted into the seating hole, and

wherein an elastic part is mounted around the seating protrusion so that an impact caused by a collision between the retaining step and the seating protrusion is reduced.