Detachable fixing of seat shells to concrete tiers - involves detent mechanisms to secure shell to fixed support

摘要

When fitting the moulded seat on a concrete step or tier the seat (7) locks by at least one detent foot (8, 9) underneath the seat in a support device fixed on the concrete step. The support device has a relase mechanism which when operated releases the detent foot. The relase mechanism is mounted beneath the seat shell which in turn has an accurately positioned bore hole for releasing the mechanism. USE/ADVANTAGE - Seat fastening system in sports stadium.