PROBLEM TO BE SOLVED: To provide a relay device that enables spray work or the like to be efficiently performed without causing a delay by a safety block.;SOLUTION: Relay devices (10A, 10B, 10C, 10D) each are connected between a worker (M) wearing a full harness type safety belt (30) to perform high-place work and a safety block (42) as a lifeline for fail-safe measures. The relay device has a safety belt connection part (2) capable of being connected to a back D-ring (36) of the full harness type safety belt (30), a safety block connection part (3) capable of being connected to the safety block (42), and bypass shape parts (1A, 1B, 1C, 1D) each provided between the safety belt connection part (2) and the safety block connection part (3) and comprising a shape capable of being extended without coming into contact by bypassing the worker (M).;SELECTED DRAWING: Figure 2A;COPYRIGHT: (C)2019,JPO&INPIT
展开▼
