Locking device for coverings for manholes and other ground...

Details Locking device for coverings for manholes and other ground... Locking device for coverings for manholes and other ground...

E - Fixed Constructions

02

D

94/12, 292/8

E02D 29/14 (2006.01) E03F 5/06 (2006.01)

Patent

CA 1324175

ABSTRACT OF THE DISCLOSURE A locking device for a covering comprised of a frame and a cover includes arms, which are inserted in depressions or bores formed in the frame and/or cover, whereby they undergo elastic deformation and consequently form a frictional engagement with the cover. The free end each of the arms project beyond an inner flange of the frame and form there a positive connection between the arms and the inner flange. This results in a simple, but effective connection between the cover and the frame, without requiring machining of the arms or depressions.

584229

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