| 摘要 |
FIELD: construction, particularly safety means structures for all-purpose building opening protection. ^ SUBSTANCE: window opening protective device comprises frame, vertical and horizontal rods connected with each other and with frame, and support members. Device also has retaining rods with washers, as well as collars and guiding pins. Support members are made as plates with threaded bushes. Retention rods are screwed in the threaded bushes and have the first ends with tapered threads. Other ends of retaining rods are supported by washers. Retaining rods pass through wall orifices and have lengths exceeding wall thickness. Support members are welded to frame. Guiding pins are driven in wall through support plate orifices. ^ EFFECT: simplified structure, increased speed of protective device removal from opening in emergency conditions with intrusion protection retention. ^ 2 dwg |
