| 摘要 |
A hand-held playing device akin to a racket comprises a frame to which a mesh or fabric is attached. In the illustrated device the frame is generally rectangular and the shorter sides or ends of the frame are formed as handles. The side members of the longer sides are both jointed at the middle so that the frame can be kinked or folded about a transverse axis. A ball is thrown from the device by straightening the frame suddenly from the kinked position to the extended position. The joints can be hinged, with or without spring biasing to the extended position and with or without a stop abutment after the manner of an elbow joint. More simply, the joints can be constituted by helical springs joining the respective pairs of parts of the side members. |
