| 摘要 |
PURPOSE: A coupling structure of a cable tray is provided to prevent the degrading of coupling force by forming a coupling hole of a coupling part of a socket as a circular cross-section and to easily couple and fix a bolt member. CONSTITUTION: A pair of lateral frames(10) is separately placed. A rung(20) connects and supports an interval of a pair of lateral frame. A coupling member comprises a rivet member or a bolt member. The rivet member comprises a first member and a second member arranged on the outside of the first member. The coupling member is inserted into the rung for the connection support of the rung and the lateral frame. A socket(30) comprises a coupling part in which a coupling hole(35) is formed to a longitudinal direction of the coupling member. |
