Abrégé

A foldable frame (10) comprises a plurality of connecting rods (11) hinged with each other. Two connected connecting rods (11) are in angular connection with each other through a wedging pin (15), wherein a tenon (12) projects from an end portion of one connecting rod (11), and a mortise (13) for receiving the wedging pin (15) and the tenon (12) is formed at an end portion of the other connecting rod (11); the tenon (12) is provided with a wedging groove (121) extending axially from the connecting rod (11); a wedging strip (151) inserted and received in the wedging groove (121) projects from a bottom surface of the wedging pin (15); a pair of lugs (152) project from two sides of the wedging pin (15); and grooves (132) for receiving the pair of lugs (152) are correspondingly formed on two sidewalls of the mortise (13). The foldable frame (10) is characterized in that the connected connecting rods (11) are closely connected through engagement of the mortise (13) and the tenon (12) and are strengthened through the wedging pin (15), so that the stability of the frame (10) is improved, and such a structure is easy and convenient to fold and assemble.

Classes IPC  ?

• A63B 63/04 - Cibles ou buts pour jeux de balle réglables ou pivotables