ANORDNING FOER LAOSNING AV BRUNNSLOCK

The invention relates to a securing device for a manhole cover (1) which contains a number of wedge-shaped grooves (2) arranged at the periphery of the cover (1) and a securing body (8) in each groove. The wedge-shaped groove has a wedge-shaped track (3), end walls (4a, 4b) and a recess (7).

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Bibliographische Detailangaben
1. Verfasser:	BACKMAN LENNART
Format:	Patent
Sprache:	fin
Schlagworte:	BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS ORWINDOWS EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING KEYS LOCKS SAFES SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:	The invention relates to a securing device for a manhole cover (1) which contains a number of wedge-shaped grooves (2) arranged at the periphery of the cover (1) and a securing body (8) in each groove. The wedge-shaped groove has a wedge-shaped track (3), end walls (4a, 4b) and a recess (7).