Tennis ball retrieving system

摘要: The invention comprises a ball retrieval arm mechanism extending from the base line to tennis net on court and can be moved along net. During retrieving process, moves only one time during each passage in transverse direction over half of court. continues its movement until it reaches side edge Ball receiving channels are provided both sides court, into which balls thrust by arms transported conveyor belts top end have connections chute corners retriever placed middle or directly. is preferably guided at thereof guide rail A constant alignment sensor scanning angle between rail. controls electric motors driving traveling wheels maintain correct angle. throwing machine provided, machines automatically raised lowered alternately allow pass therebeneath. selectively connected another container.