Foldable ping-pong table capable of ensuring bottom surface space

Abstract

A folding table tennis table includes: first to fourth vertical pillars fixed and installed perpendicular to the bottom of left and right table tennis tables; support means installed obliquely at an angle between the outer surface near the upper portion of the first to fourth vertical pillars and the bottom surface of the left and right table tennis tables to contract or expand according to an applied force; first to third folding means installed on a bottom surface of a surface facing the left and right table tennis tables; left first and second link means installed in parallel with one end connected to each of the first folding means and the third folding means and the other end.

1 . A folding table tennis table capable of securing a bottom space comprising:
 first to fourth vertical pillars fixed and installed perpendicular to the bottom of left and right table tennis tables;   support means installed obliquely at an angle between the outer surface near the upper portion of the first to fourth vertical pillars and the bottom surface of the left and right table tennis tables to contract or expand according to an applied force;   first to third folding means installed on a bottom surface of a surface facing the left and right table tennis tables to be folded or unfolded in conjunction with the folding and unfolding operation of the left and right table tennis tables;   left first and second link means installed in parallel with one end connected to each of the first folding means and the third folding means and the other end facing the lower ends of the first and second vertical pillars;   left third link means connected to each end of the left first and second link means;   right first and second link means installed in parallel with one end connected to each of the first folding means and the third folding means and the other end facing the lower ends of the third and fourth vertical pillars; and   right third link means connected to each end of the right first and second link means;   wherein the first to third folding means   C-shaped and closed surface portions are closely fixed to the bottom surfaces of the left and right table tennis tables, respectively, and left and right first and second link means are installed while intersecting, respectively, on the open surface portion, and   wherein in the first to third folding means,   the left side of each open side is installed so that the ends of the left and right folding means with an inclined surface are rotatably installed around a rotation axis, and when the left and right table tennis tables are completely folded, they are located facing each other, but at the rotation axis part, some surfaces are overlapped and straight surface with each slope is no longer rotated by the other slope, and   wherein the second folding means is provided with an elastic member on the central rotational shaft, and both ends of the elastic member are located across the left and right folding means, and both ends of the elastic member are left and right to fold in the unfolded state of the left and right table tennis tables in that it is folded while pulling up the table tennis table, but is folded by applying a force greater than the elastic force of the elastic member.   
     
     
         2 . The folding table tennis table capable of securing a bottom space according to  claim 1 ,
 wherein horizontal legs connected to lower ends of the first to fourth vertical pillars, respectively, and   wheels, which are fixed while being covered by a cover member, are rotatably fixed to the ends of the horizontal legs.   
     
     
         3 . The folding table tennis table capable of securing a bottom space according to  claim 1 ,
 wherein the left first to third link means form a left C-shaped link means as a whole, and   the right first to third link means also form a right C-shaped link means as a whole, wherein,   when the left and right table tennis tables are folded and unfolded, the left table tennis table is operated by being connected to the right C-shaped link means, and   when the left and right table tennis tables are folded and unfolded, the right table tennis table is operated by being connected to a left C-shaped link means.