A convertible bicycle exercise apparatus, comprising:
- a body part formed as pipe-shaped frames each having a hollow therein, and including a pair of a first body and a second body each of which is formed as a pipe-shaped frame, each of which includes an upper horizontal member formed in a horizontal direction, a lower horizontal member formed to be spaced apart from the upper horizontal member by a predetermined distance in a vertical direction, and a vertical member formed in a vertical direction to connect one end of the upper horizontal member and one end of the lower horizontal member, each of which is formed in a sideways “U” shape, and in each of which a plurality of fastening holes are formed through both sides thereof at predetermined intervals, wherein the second body is disposed symmetrically to the first body;
- a support part configured to be provided under the body part and support the body part, formed as pipe-shaped frames each having a hollow therein, and including a support member which is formed in a bar shape, first and second auxiliary support members which are symmetrically inserted and installed into both ends of the support member, and each of which is formed in a “T” shape in which an auxiliary coupling piece is formed to protrude from a center thereof, and support rods which are formed to protrude upward at respective centers of the first and second auxiliary support members, wherein a plurality of fastening holes is formed through both sides of the support part at predetermined intervals;
- a saddle part including a saddle height adjustment member which is installed into any one of the vertical members of the body part and adjusts a height of the saddle part, a saddle movement member which has a pipe shape having movement holes so as to be movably installed in the saddle height adjustment member and in which installation holes are formed in both sides thereof, a seating member which is formed to allow a user to be seated thereon, and a saddle connection member which connects the saddle movement member and the seating member to each other;
- a handle part including a handle height adjustment member which is installed into any one of the vertical members of the body part and adjusts a height of the saddle part, a handle movement member which has a pipe shape having movement holes so as to be movably installed in the handle height adjustment member and in which installation holes are formed in both sides thereof, a grip member which is formed to allow a user to be seated thereon, and a handle connection member which connects the handle movement member and the grip member to each other;
- and
- a pedal part including a pedal movement member which is detachably installed onto the horizontal vertical member of the body part, in which a seating space is formed therein, and in which a plurality of installation holes is formed through both sides of the pedal movement member at predetermined intervals, a pedal member which is connected to a top surface of the pedal movement member and which is rotated by being stepped on by the user, and a driving unit;
- wherein a size of the fastening holes formed in the body part and the support part corresponds to a size of the installation holes formed in the saddle part, the handle part, the saddle movement member, the handle movement member, and the pedal movement member of the pedal part, an interval of the fastening holes formed in the body part and the support part corresponds to an interval of the installation holes formed in the pedal movement member of the pedal part, and the installation holes and the fastening holes are aligned with each other and fastening is performed by tightening fastening members thereinto.