Abstract: A playing table includes a main body, and four side boards mounted on a periphery of the main body. Each of the side boards includes a plurality of sheet plates combined with each other to previously form an outer appearance of each of the side boards, and an ornamental plate bonded on the sheet plates. Thus, each of the side boards is assembled rapidly, thereby facilitating a user mounting the side boards on the playing table.

Abstract: A table type baseball playing table structure includes a ball batting assembly, and a ball ejection assembly. Thus, the pitcher may pull and release the ball ejection handle, so that the ball striking rod may be pushed by the spring to strike the ball by the eccentric post. After the ball is ejected outward by the eccentric post of the ball striking rod into the top face of the table, the batter may push the handle to move the pull rod, so that the shaft may be rotated by engagement between the gear face of the shaft and the serrated face of the pull rod. Thus, rotation of the shaft may drive the bat to rotate, so as to bat the ball ejected from the ball ejection assembly.

Abstract: The discloure relates to a roller-skate with improved brake device. A guidance slanting upwards is disposed at a first through hole of the skate body for the mounting of a first rolling axle having a first wheel member rotatably engaged therewith. A spring mount fixed with a brake plate having brake lining underside both its ends is mounted between the first and the second wheel members. When the wheel support lurches forwards, the first wheel member will move upwards through the guidance, urging against the brake lining fixed under brake plate fixed to the spring mount to achieve the effect of braking the skate. Moreover, when pressed at one end, the brake plate, by leverage, will bend at the other end to limit the motion of the second wheel member and thus further contributes to the effectivity of the brake device.

Abstract: A ventilating skate including a skate body formed with several circular or polygonal through holes in which ventilating disks are disposed. One side of the ventilating disk is formed with a ventilating groove. A pivot plate formed with multiple through holes is rotatably connected with the ventilating disk to locate the same in the through hole of the skate body. The ventilating disk can be rotated to adjust the orientation of the ventilating groove and thus adjust the amount of incoming air. A whistling film is disposed in the ventilating groove, whereby when skating with the air passing through the ventilating groove, the whistling film is vibrated to emit a sound.