| 摘要 |
A portable electric current supply device for building sites and the like. The device is constituted by a housing which in its interior holds current distribution equipment, other electric equipment and/or instruments. All the elements held by the housing are connected to a common supply cable. The housing takes the form of a round or polygonal pipe made of solid but resilient material, such as hard plastic. At each end the housing extends into pairs of opposite flaps which serve as bumpers and side boundaries for a coil of the supply cable. Between pairs of oppositely directed flaps the tubular housing is provided with openings serving both access openings to the equipment inside the housing and as carrying means. The flaps are tapered off towards their ends and the edges of the pairs of opposite flaps merge with each other along concavely curved transition portions which constitute bottom points for a coil of the supply cable. |
