| 摘要 |
A house-wiring junction box having most conventional properties (compositions, shapes, dimensions, components, abilities) but being unconventional largely in that all side-wall cable ports may be opened both axially and radially by virtue of the box's reversible assembly from bottom and top partial boxes, the bottom partial box having the floor and lower parts of the side walls of the junction box, the top partial box having the upper parts of the side walls and the open top face of the junction box, the assembly seam intercepting all side-wall cable ports. Any side-wall cable port of the junction box may be unconventional in radial dimensions and in having an unconventional cable clamp, the base of which is built on to the bottom partial box continuous with the lower arc of the unconventional cable port, the shoe-and-shield element of which may be a knockout component of the top partial box, this element plugging the upper section of the unconventional cable port before it is removed for use in cable clamping, then shielding the same when used in cable clamping. Owing to these unconventional features, the junction box may be assembled about a connected branch junction or wired-up device and the cables thereof, the cables being clamped before or after this assembly.
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