Abstract:
A handle structure for ball striking equipment includes an underlisting for passing a handle rod of a ball striking equipment through its interior and having a first section and a second section at its exterior, a wrapping strap fixed on the outside of the second section, and the wrapping strap and the first section of the underlisting divide a handle holding section into two gripping sections, and the first section gives a shock absorbing and a slippery resisting effects, and the wrapping strap provides a soft, comfortable and slippery-proof gripping effect.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a handle for ball striking equipment (such as a golf club), and more particularly to a handle that comes with a gripping mechanism to fit an underlisting for both left-handed and right-handed users. 
     2. Description of the Related Art 
     In general, a traditional ball striking equipment such as a tennis racket, a badminton racket, a golf club or a hockey stick comes with a handle wound with a wrapping strap that is made of genuine leather or artificial leather for users to grip. The traditional wrapping strap usually has through holes, pressing patterns, or polished structures, and an elastic member is buried into or added to the wrapping strap to provide the functions of absorbing sweats, resisting slippery and reducing vibrations, so that a user&#39;s hands can firmly and comfortably grip the ball striking equipment. Regardless of the design of the wrapping straps, the overall mechanical properties such as the sweat absorbing capability, the coefficient of friction, the elasticity, and the shock resistance are substantially the same, and thus the traditional wrapping strap cannot provide different grips to fit different positions of a user&#39;s hand. 
     As to the sports that require both hands to play, such as gripping a golf club or a tennis racket, the hand that grips the rear end of a club or a racket is the main source of force for striking the ball and thus bearing a vast majority of the reaction from the action of striking balls. The other hand that holds the front end of the club or racket primarily guides the striking direction. In other words, the position of the hand that drives the club or racket should be given better effects of absorbing shocks and resisting slippery, and the position of the other hand that guides the striking direction should be given a more comfortable grip, since both hands have different functions. 
     SUMMARY OF THE INVENTION 
     The present invention provides a solution for gripping a ball striking equipment by both hands and a gripping mechanism to fit the requirements of both left-handed and right-handed users. 
     The technical solution provided by the present invention comprises the following elements: 
     An underlisting is provided for passing a handle rod of a ball striking equipment inside, and the outside has a first end, a second end, a first section defined by extending a predetermined distance from the first end to the second end, and a second section defined by extending from a terminating end of the first section to the second end, and the overall external diameter of the second section is smaller than the terminating end of the first section, and thus an external diameter difference is occurred at the boundary of the starting end of the second section and the terminating end of the first section. 
     A wrapping strap is fixed outside the second section. 
     Therefore, it is a primary objective of the present invention to divide the wrapping strap and the first section of the underlisting into two gripping sections, wherein the first section provides better shock absorbing and slippery resisting effects, and the wrapping strap provides a soft and comfortable slippery resisting effect. 
     Another objective of the present invention is to provide a first section for the hand that gives the main source of force to strike a ball, and the wrapping strap for the other hand that controls the striking direction, when both hands grip a handle. As a result, the handle can provide different gripping mechanisms for both hands of the user. 
     A further objective of the present invention is to provide the first section and the section of the wrapping strap for the grip of both hands, so as to create different visual effects for the sports equipment handle. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a planar view of an underlisting of the invention; 
         FIG. 2  is a cross-sectional view of a portion of an underlisting of the invention; 
         FIG. 3  is a schematic view of an underlisting wound by a genuine leather wrapping strap according to the invention; 
         FIG. 4  is a schematic view of an underlisting wound by a genuine leather wrapping strap and two fixing objects used for fixing the starting end and the terminating end of the wrapping strap according to the invention; 
         FIG. 5  is a perspective view of an underlisting and a genuine leather wrapping strap forming a ball striking equipment handle according to the invention; 
         FIG. 6  is a cross-sectional view of Section  6 - 6  as depicted in  FIG. 5 ; 
         FIG. 7  is a cross-sectional view of Section  7 - 7  as depicted in  FIG. 5 ; 
         FIG. 8  is a perspective view of an underlisting and another genuine leather wrapping strap forming a ball striking equipment handle according to the invention; 
         FIG. 9  is a cross-sectional view of Section  9 - 9  as depicted in  FIG. 8 ; and 
         FIG. 10  is a cross-sectional view of a portion of an underlisting and a genuine leather wrapping strap according to the invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Refer to  FIG. 1  for the planar view of an underlisting  10  of the present invention. The underlisting  10  is a soft elastic material, and its interior is capable of accommodating a handle rod of a ball striking equipment such as a golf club, and its exterior has a first end  11 , a second end  12  and a conical profile formed between the first and second ends  11 ,  12 . A first section  13  is defined by extending a predetermined distance from the first end  11  along the direction of the conical profile to the second end  12 , and a second section  14  is defined by extending from a terminating end  131  of the first section  13  along the direction of the conical profile to the second end  12 , and the overall external diameter of the second section  14  is smaller than the terminating end  131  of the first section  13 . Therefore, an external diameter difference  15  is occurred at the boundary of the starting end  141  of the second section  14  and the terminating end  131  of the first section  13 . Further, a protruded ring  16  is disposed on the second section  14  at a predetermined distance proximate to the second end  12 , and a ring groove  17  is formed between the protruded ring  16  and the second end  12 . 
     Refer to  FIG. 2  for the cross-sectional view of a portion of the underlisting  10 . In  FIG. 2 , the external diameter difference  15  is used to form an inwardly inclined surface  132  around the terminating end  131  of the first section  13 , such that a circular corner  133  is formed at the boundary of the first section  13  and the second section  14 . 
     Refer to  FIG. 3  for the schematic view of the underlisting  10  wound with a wrapping strap  20 . Basically, the wrapping strap  20  could be any traditional wrapping strap spirally wound around the second section  14 . 
     Referring to  FIGS. 4 to 6 , a starting end  201  wound with the wrapping strap  20  is extended into the round corner  133  and wound spirally such that the corresponding edges are overlapped with each other, and the overlapped portion  203  is not protruded from an external profile  204  wound by the wrapping strap  20 , and the winding at a terminating end  202  is evenly ended at the protruded ring  16 . The wrapping strap  20  is fixed onto the terminating end  202  of the winding by a fixing member  31  to prevent the terminating end  202  from becoming loosened. 
     Refer to  FIG. 7 , the fixing member  31  at the boundary of the terminating end  202  of the wrapping strap  20  and the protruded ring  16  is an elastic ring with an elastic bidning force, and the fixing member  31  provides a binding force to the terminating end  202  of the wrapping strap  20  and the protruded ring  16 . A fixing section  311  protruded from a wall of the fixing member  31  is embedded into the ring groove  17 , so that the fixing member  31  can be secured at a predetermined position. 
     Refer to  FIGS. 8 and 9  for the schematic view of the underlisting  10  being wound by a wrapping strap in another fashion. The wrapping strap  21  comprised of a first and a second strap bodies  211 ,  212  with different widths spirally wind the second section  14 . Similarly to the description above, the starting end  213  of the winding of the wrapping strap  21  is extended into the circular corner  133  and spirally wound, and the corresponding edges are overlapped with each other. The overlapped portion  214  is not protruded from the external profile  215  of the wrapping strap  20 . The terminating end  216  is evenly terminated at the protruded ring  16 . The wound wrapping strap  21  is fixed at the position of the by a fixing member  216  with a binding force. The wrapping strap  20 ,  21  as illustrated in  FIGS. 1 to 9  is a long bar structure made of genuine leather. 
     Refer to  FIG. 10  for the cross-sectional view of a section of the underlisting  10  being wound by a wrapping strap in another fashion. In  FIG. 10 , the wrapping strap  22  is a long bar structure made of artificial leather. Similar to the description above, the starting end  221  of the winding of the wrapping strap  22  is extended into the circular corner  133  and spirally wound, and the corresponding edges are overlapped with each other. The overlapped portion  222  is not protruded from the external profile  223  of the wrapping strap  20 . 
     The foregoing first section  12  and the wrapping strap  20 ,  21 ,  22  divide the underlisting  10  into upper and lower gripping sections. The first section  13  has an external profile for an even grip, and the wrapping strap  20 ,  21 ,  22  has a wavy external profile. For example, a right-handed golf player uses his/her left hand that gives the main source of striking force to grip the first section  13  and his/her right that controls the striking direction of the ball to grip the wrapping strap  20 ,  21 ,  22 . Since the wrapping strap  20 ,  21 ,  22  has a spiral wavy external profile, therefore it provides a better slippery-resisting effect and a more comfortable grip, and the player&#39;s right hand can control the striking direction more stably. The first section  13  uses the thickness and elasticity of its own structure to provide a better shock resistance and reduce the reaction from the striking ball on the left hand. The rubber material of the underlisting  10  and the slippery-proof pattern on the underlisting give more frictions and provide a better slippery resisting effect, so that the player can securely grip the handle and control the force of striking the ball. The handle of the present invention can simultaneously provide a gripping mechanism for both left-handed and right-handed players. 
     To fit the palm size and the gripping position of different players, and simultaneously provide the gripping mechanism simultaneously for both left-handed and right-handed players, the ratio of the axial lengths of the first section  13  and the second section  14  of the underlisting  10  can be changed. 
     While the invention has been described by way of example and in terms of a preferred embodiment, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.