Rotational Mechanics Swing Aid Device

Abstract

A batting swing aid for batting practice is provided having an arm encircling strap engaged to a planar base. The base is held against the torso of a user and provides a mount for the strap to hold an encircled arm of the user adjacent to the user's torso during a swing of the bat. The attachment of the base to the strap may be elastic to allow for movement of the arm away from the torso during a swing, or may be detachable and make an audible noise to signal deviation from optimal body positioning during a swing.

What is claimed: 
     
         1 . A swing aid device for engagement to the torso of a user in an as-used position, to maintain one arm adjacent to the torso of said user during a swing of a bat, comprising:
 a base member having a first surface positionable against or adjacent to the torso of a user with said swing aid device engaged in an as-used position upon said user, and having a second surface opposite said first surface;   at least one securement strap having a securement strap engagement with said base member and extending to a distal end;   a first fastener for securing said distal end of said securement strap, to one of said base member or a second distal end of a strap portion extending from said base member, to an engaged position;   said securement strap in said engaged position, encircling said torso of said user and providing means to hold said swing aid device in said as-used position;   a flexible member extending to a distal end from a member engagement of said flexible member to one of said base member or said securement strap;   a second fastener engaging said distal end of said flexible member to one of said base member or said securement strap in an engagement position;   said flexible member in said engagement position forming part of an encirclement of a rearward portion of a first arm of said user, said rearward portion being a portion of said first arm between an elbow and a shoulder of said first arm of said user;   said encirclement maintaining a positioning of said rearward portion of said first arm, adjacent to said second surface of said base member; and   whereby during a swing of a bat by said user griping said bat with two hands, said swing aid in said as-used position with said flexible member in said engagement position, maintains said rearward portion of said first arm of said user adjacent to said torso of said user, thereby maintaining both said user's arms in a proper batting position.   
     
     
         2 . The swing aid device of  claim 1 , additionally comprising:
 said second fastener engaging said distal end of said flexible member to one of said base member or said securement strap to said engagement position, provides for adjustment of a circumference of said encirclement of said rearward portion of said user's first arm;   said adjustment of said circumference providing means for accommodating an arm diameter of said rearward portions of said user's arms therethrough, whereby said circumference may be reduced for a smaller said arm diameters and said circumference increased for larger said arm diameters to accommodate said users of differing size.   
     
     
         3 . The swing aid device of  claim 1 , additionally comprising:
 said second fastener having a first component engaging said distal end of said flexible member to a mating second component positioned at an engagement point on said second surface of said base member.   
     
     
         4 . The swing aid device of  claim 2 , additionally comprising:
 said second fastener having a first component engaging said distal end of said flexible member to a mating second component positioned at an engagement point on said second surface of said base member.   
     
     
         5 . The swing aid device of  claim 3 , additionally comprising:
 said first component being one of hook fastener fabric removably engageable with loop fastener fabric; and   said second component being the other of said hook fastener fabric or loop fastener fabric from that of said first component.   
     
     
         6 . The swing aid device of  claim 4 , additionally comprising:
 said first component being one of hook fastener fabric removably engageable with loop fastener fabric; and   said second component being the other of said hook fastener fabric or loop fastener fabric from that of said first component.   
     
     
         7 . The swing aid device of  claim 1 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of disengageable hook fastener fabric and loop fastener fabric;   one of said hook fastener fabric and loop fastener fabric engaged with said flexible member;   the other of said hook fastener fabric and said loop fastener fabric from that employed with said flexible member, engaged to a mounting point on said second side of said base member;   a disengagement of said hoop fastener fabric from said loop fastener fabric by a movement of said rearward portion of said user's first arm, away from said second surface, causing an audible noise; and   said audible noise providing said user an audible signal of an improper batting swing.   
     
     
         8 . The swing aid device of  claim 2 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of disengageable hook fastener fabric and loop fastener fabric;   one of said hook fastener fabric and loop fastener fabric engaged with said flexible member;   the other of said hook fastener fabric and said loop fastener fabric from that employed with said flexible member, engaged to a mounting point on said second side of said base member;   a disengagement of said hoop fastener fabric from said loop fastener fabric by a movement of said rearward portion of said user's first arm, away from said second surface, causing an audible noise; and   said audible noise providing said user an audible signal of an improper batting swing.   
     
     
         9 . The swing aid device of  claim 3 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of disengageable hook fastener fabric and loop fastener fabric;   one of said hook fastener fabric and loop fastener fabric engaged with said flexible member;   the other of said hook fastener fabric and said loop fastener fabric from that employed with said flexible member, engaged to a mounting point on said second side of said base member;   a disengagement of said hoop fastener fabric from said loop fastener fabric by a movement of said rearward portion of said user's first arm, away from said second surface, causing an audible noise; and   said audible noise providing said user an audible signal of an improper batting swing.   
     
     
         10 . The swing aid device of  claim 4 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of disengageable hook fastener fabric and loop fastener fabric;   one of said hook fastener fabric and loop fastener fabric engaged with said flexible member;   the other of said hook fastener fabric and said loop fastener fabric from that employed with said flexible member, engaged to a mounting point on said second side of said base member;   a disengagement of said hoop fastener fabric from said loop fastener fabric by a movement of said rearward portion of said user's first arm, away from said second surface, causing an audible noise; and   said audible noise providing said user an audible signal of an improper batting swing.   
     
     
         11 . The swing aid device of  claim 1 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of elastic material having a collapsed length and an elongated length, said elongated length exceeding said collapsed length by an elongated distance;   said elastic material stretchable to said elongated length by movement of said rearward potion of said user's arm a distance up to said elongated distance away from said second side of said base member;   whereby said user may distance said rearward portion of their arm from said second surface and said torso underlying said second surface, a distance up to said elongated distance during a follow through motion at an end portion of said swing.   
     
     
         12 . The swing aid device of  claim 2 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of elastic material having a collapsed length and an elongated length, said elongated length exceeding said collapsed length by an elongated distance;   said elastic material stretchable to said elongated length by movement of said rearward potion of said user's arm a distance up to said elongated distance away from said second side of said base member;   whereby said user may distance said rearward portion of their arm from said second surface and said torso underlying said second surface, a distance up to said elongated distance during a follow through motion at an end portion of said swing.   
     
     
         13 . The swing aid device of  claim 3 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of elastic material having a collapsed length and an elongated length, said elongated length exceeding said collapsed length by an elongated distance;   said elastic material stretchable to said elongated length by movement of said rearward potion of said user's arm a distance up to said elongated distance away from said second side of said base member;   whereby said user may distance said rearward portion of their arm from said second surface and said torso underlying said second surface, a distance up to said elongated distance during a follow through motion at an end portion of said swing.   
     
     
         14 . The swing aid device of  claim 4 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of elastic material having a collapsed length and an elongated length, said elongated length exceeding said collapsed length by an elongated distance;   said elastic material stretchable to said elongated length by movement of said rearward potion of said user's arm a distance up to said elongated distance away from said second side of said base member;   whereby said user may distance said rearward portion of their arm from said second surface and said torso underlying said second surface, a distance up to said elongated distance during a follow through motion at an end portion of said swing.   
     
     
         15 . The swing aid device of  claim 5 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of elastic material having a collapsed length and an elongated length, said elongated length exceeding said collapsed length by an elongated distance;   said elastic material stretchable to said elongated length by movement of said rearward potion of said user's arm a distance up to said elongated distance away from said second side of said base member;   whereby said user may distance said rearward portion of their arm from said second surface and said torso underlying said second surface, a distance up to said elongated distance during a follow through motion at an end portion of said swing.   
     
     
         16 . The swing aid device of  claim 6 , additionally comprising:
 said member engagement of said flexible member being to said second side of said base member;   said member engagement formed of elastic material having a collapsed length and an elongated length, said elongated length exceeding said collapsed length by an elongated distance;   said elastic material stretchable to said elongated length by movement of said rearward potion of said user's arm a distance up to said elongated distance away from said second side of said base member;   whereby said user may distance said rearward portion of their arm from said second surface and said torso underlying said second surface, a distance up to said elongated distance during a follow through motion at an end portion of said swing.   
     
     
         17 . The swing aid device of  claim 11 , additionally comprising:
 said flexible member being one of a kit of said flexible members; and   each of said kit of flexible members requiring a different force from movement of said rearward portion of said arm of said user to stretch said flexible member to said elongated length.   
     
     
         18 . The swing aid device of  claim 12 , additionally comprising:
 said flexible member being one of a kit of said flexible members; and   each of said kit of flexible members requiring a different force from movement of said rearward portion of said arm of said user to stretch said flexible member to said elongated length.   
     
     
         19 . The swing aid device of  claim 1 , additionally comprising:
 at least one securement strap having a securement strap engagement with said base member and extending to a distal end;   said securement strap in said engaged position, holding said swing device in said as-used position, forming a horizontal line extending around said user;   said flexible member engaged with said second surface of said base member at an angle to said horizontal line;   said angle positioning an axis running through said encirclement at an angle aligned with an axis of said rearward portion of said user's arm running from said shoulder through said encirclement to said elbow of said first arm.   
     
     
         20 . The swing aid device of  claim 2 , additionally comprising:
 at least one securement strap having a securement strap engagement with said base member and extending to a distal end;   said securement strap in said engaged position, holding said swing device in said as-used position, forming a horizontal line extending around said user;   said flexible member engaged with said second surface of said base member at an angle to said horizontal line;   said angle positioning an axis running through said encirclement at an angle aligned with an axis of said rearward portion of said user's arm running from said shoulder through said encirclement to said of said first arm.