Swing practice apparatus
First Claim
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1. A swing practice apparatus comprising:
- a base portion that makes a contact on a ground;
a winding roller having an attaching mechanism;
a trajectory wire, one end of which is connected to the attaching mechanism of the winding roller, and the other end of which is connected to a bracing structure;
a standing pole that extends upward vertically from the base portion;
a horizontal arm that is elongated between a first base side and a third base side and is arranged to be perpendicular to the standing pole;
a pair of horizontal arm wire guide pulleys, having grooves, attached side by side at a middle of the horizontal arm, to receive the trajectory wire in the grooves;
a hinged arm that is rotatable at one end by a hinge at a middle of the horizontal arm;
a hinged arm wire guide pulley attached at an end of the hinged arm opposite to the middle of the horizontal arm;
a trajectory wire hole formed at the end of the hinged arm where the hinged arm wire guide pulley is positioned, wherein the trajectory wire hole is adapted to allow passage of the trajectory wire;
a trajectory pipe, one end of which is connected to the hinged arm at the trajectory wire hole, and the other end is extended toward a pitcher side and has a peak hole at its terminal end adapted to allow passage of the trajectory wire; and
a ball suspended to a suspension ring, wherein the suspension ring is slidable along the trajectory wire and the trajectory pipe.
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Abstract
A swing practice apparatus has a base portion that makes a contact on a ground, a standing pole that extends upward vertically from the base portion, a horizontal arm that is elongated between a first base side and a third base side and is arranged to be perpendicular to the standing pole, a hinged arm that is rotatable at one end at a middle of the horizontal arm, a trajectory pipe attached to the other end of the hinged arm, a trajectory wire connected between the trajectory pipe and a bracing structure, and a ball suspended to a suspension ring which is slidable along the trajectory wire and the trajectory pipe.
9 Citations
8 Claims
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1. A swing practice apparatus comprising:
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a base portion that makes a contact on a ground; a winding roller having an attaching mechanism; a trajectory wire, one end of which is connected to the attaching mechanism of the winding roller, and the other end of which is connected to a bracing structure; a standing pole that extends upward vertically from the base portion; a horizontal arm that is elongated between a first base side and a third base side and is arranged to be perpendicular to the standing pole; a pair of horizontal arm wire guide pulleys, having grooves, attached side by side at a middle of the horizontal arm, to receive the trajectory wire in the grooves; a hinged arm that is rotatable at one end by a hinge at a middle of the horizontal arm; a hinged arm wire guide pulley attached at an end of the hinged arm opposite to the middle of the horizontal arm; a trajectory wire hole formed at the end of the hinged arm where the hinged arm wire guide pulley is positioned, wherein the trajectory wire hole is adapted to allow passage of the trajectory wire; a trajectory pipe, one end of which is connected to the hinged arm at the trajectory wire hole, and the other end is extended toward a pitcher side and has a peak hole at its terminal end adapted to allow passage of the trajectory wire; and a ball suspended to a suspension ring, wherein the suspension ring is slidable along the trajectory wire and the trajectory pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification