作者: Harry Jablon , Irving Goldfarb , Joan M Lippe
DOI:
关键词: Structural engineering 、 Engineering 、 Collar 、 Ball (bearing)
摘要: In a belt-type toy or collar, adapted to encompass wearer, the belt has circumferential track at its outer side which retains slide member therein be connected ball other object by an elongated flexible connecting member, is move in permit relative movement of with respect wearer and may include chordally extending elastic fixed each end interior portion accommodate various sized wearers.