| 摘要 |
#CMT# #/CMT# The box has a draw spring passing through openings (10) provided in a circumferential wall. Ribs (40) extend up to the wall and counteract movement of the spring in a circumferential direction in the box. The ribs and a bottom (6) of the box form a duct ascending toward centre of the box, where the duct narrows toward the centre of the box. The ribs smoothly change into the bottom of the box in circumferential direction. Spouts (9) extend outward from the wall. An internal bounding surface of the duct at the side of the circumferential wall extends in circumferential direction. #CMT# : #/CMT# An independent claim is also included for a method for arranging a concrete floor with a distribution junction box in a building. #CMT#USE : #/CMT# Used in an assembly (claimed) for accommodating wire of an electric wiring in a concrete floor of a building. #CMT#ADVANTAGE : #/CMT# The ribs smoothly change into the bottom of the box in the circumferential direction, thus avoiding the draw spring from getting stuck, and guiding the draw spring in the correct spout. The configuration of the box permits the box to be adjusted as desired by an electrician, simplifies the stock keeping for a concrete manufacturer, simplifies the manufacturing of concrete slabs and precast wide planks, and permits quick connections between the boxes. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a distribution junction box. 2 : Box 6 : Bottom 9 : Spouts 10 : Openings 40 : Ribs. |
