作者: Aleksey Zats
DOI:
关键词: Tennis ball 、 Engineering 、 Container (type theory) 、 Flat surface 、 Engineering drawing 、 Acoustics
摘要: An increased capacity portable retriever for collecting and dispensing tennis balls utilized on a flat surface comprising horizontally elongated container having front retrieving section with top handle, rear pivotably supported by two wheels coaxially mounted at bottom wall opening cover. The contains parallel rods spaced from each other distance smaller than the ball diameter. has horizontal vertical positions. includes compartment regulating element individually. First method of retrieving, repetitive transferring substantial group towards section. Second cyclical reducing correspondingly to volume resided in after comfortably reachable portion container.