Falling down accident avoidance of operation in height section upward opening

摘要

(57) Abstract Objective Climbing the operation in height section of firing base and temporary foothold etc for jobFalling down accident worker from the opening opening is prevented. Constitution Around job department 14 of apex of firing base for job,Guard rail 16 is provided. Worker from vertical ladder 12As for the upward opening 18 which transfers in job department 14 becoming opening 20It is. Door 22 is done in order to close this opening 22, distribution facilities,Axis 40 focusing on it is made time motion unrestricted by supporter 24,ru. As for supporter 24, inside sleeve 28 flexible pipe 2 of door 222a is stored. In sleeve 28 diagonal notch 42Was formed, in this notch 42 was installed on door 22 sideStoring bearing 46, tilt slant face 48 of the notch 42 and beWeight of door 22 is supported with the engagement of aringu 46,ru. When door 22 is pushed in direction on job department 14, to open, the hand separationWhen it does, paralleling to tilt slant face 48, you close with tare weight. When it is closedAs for bearing 48 the person in charge being stopped in notch bottom 42a, jobBecause you do not open to outer part direction of section 14, falling down is prevented.