Patent Publication Number: US-2017348573-A1

Title: Table tennis racket rubber and wood staggered stack handle design

Description:
Invention includes: Five layer structure of table tennis racket handle, handle rubber and laminated wood combination structure, safety device for covering grip part of racket bottom with soft material. 
     TECHNICAL FIELD 
     The present invention relates to changing the structure of a table tennis racket handle. From the current three layers (small side plate, bottom plate, small side plate) (See  FIG. 1 ) to five layers (Small side plate, rubber components, bottom plate, rubber components, small side plate and other components) (See  FIG. 7 ). 
     The present invention relates to changing the material composition of a table tennis racket handle. Updating from the current wood laminate structure to wood and rubber (or soft material) staggered stack. The racket handle is made of wood and rubber, and an elastic table tennis racket handle is formed; making g a flexible table tennis racket handle. 
     The invention relates to a safety protection device for a table tennis racket bottom board, increasing the comfort degree of the racket grip. 
     The invention relates to a wood and rubber combined technique, which adopts the adhesive technique of hot pressing and a self formed glue to embed the rubber component into table tennis racket bottom handle. 
     Background Technique 
     The common table tennis racket handles include the side plate and the bottom plate. The handle of the bottom board is symmetrically bonded with two symmetrical small side plates, the handle is firm and inelastic, and the elastic force is not flexible when gripping. 
     when you hitting the balls, palm skin and racket plate will produce friction, easy to hurt hands, reducing the speed of table tennis. 
     Invention 
     The invention aims to overcome the technical deficiency of the existing racket handle, improve the comfort and control of the handle, and enhance the accuracy of the table tennis. 
     In order to achieve the above object, the technical solutions adopted in the present invention include. 
     Cut the racket bottom and mount groove: Cut a groove in the extension of the handle and bottom plate for mounting the handle rubber components shown in  FIG. 3 ( 5 ) ( 6 ). 
     Production of racket bottom handle rubber components: According to the shape of the table tennis racket handle to design and make special rubber components ( FIG. 2 ). 
     Fit the rubber components to the racket handle: insert the rubber components into the groove of the racket handle by special technique ( FIG. 4  ( 3 )). 
     Install safety device to the racket bottom: fit the safety protection device into the groove of the racket bottom extension to ensure that the rubber component and the bottom plate of the racket are flat, ( FIG. 4  ( 4 ). 
    
    
     
       PATENT FIGURES 
       Table tennis racket rubber and wood staggered stack handle design figures. 
     
    
    
     DESCRIPTION 
       FIG. 1 : The structure of the current table tennis racket handles (Three layers). 
       FIG. 2 : The structure diagram of the rubber component of the table tennis racket handle. 
       FIG. 3 : Schematic diagram of table tennis racket bottom plate structure for the present invention. 
       FIG. 4 : Schematic diagram of table tennis racket handles rubber components installation. 
       FIG. 5 : Invented table tennis racket bottom board. 
       FIG. 6 : Invented table tennis racket bottom plate color figure. 
       FIG. 7 : The structure of table tennis racket handle relate to the present invention (Five layer). 
     Include: 
       1 . Bottom plate; 
       2 . Small side plate; 
       3 . Rubber components; 
       4 . Safety protection device; 
       5 . rubber components installed; 
       6 . rubber components installed bayonet.