A manhole assembly and related method

Details A manhole assembly and related method A manhole assembly and related method

E - Fixed Constructions

02

D

E02D 29/14 (2006.01)

Patent

CA 2592192

A manhole assembly (10; 10') comprises a frame (11; 11') and at least a pair of cover plates (12, 13; 12', 13') that are receivable in and disengageable from -the frame to permit selective closing and opening of an aperture the periphery of which is defined by the frame, the cover plates (12, 13; 12', 13') substantially occupying the aperture when received in the frame; a first cover plate (12; 12') of a said pair being smaller than a second cover plate (13; 13') of the pair; the first cover plate being hingeable relative to the second cover plate, while the latter is received in the frame (11', 11'), from a closed position received in the frame to an open position in which a first part of the aperture is open; and the second cover plate being removable from the frame, when the first cover plate is disengaged from the frame, to open a second part of the aperture.

La présente invention concerne un ensemble de regards (10; 10') qui comprend un cadre (11; 11') et au moins une paire de plaques de recouvrement (12, 13; 12', 13') qui peuvent être reçues dans et débrayées du cadre afin de permettre une fermeture et une ouverture sélectives d~une ouverture dont la périphérie est définie par le cadre, les plaques de recouvrement (12, 13; 12', 13') occupant sensiblement l~ouverture quand elles sont reçues dans le cadre ; une première plaque de recouvrement (12; 12') d~une dite paire étant plus petite qu~une seconde plaque de recouvrement (13; 13') de la paire ; la première plaque de recouvrement étant articulable par rapport à la seconde plaque de recouvrement alors que cette dernière est reçue dans le cadre (11', 11'), d~une position fermée reçue dans le cadre à une position ouverte dans laquelle une première partie de l~ouverture est ouverte ; et la seconde plaque de recouvrement étant amovible du cadre, quand la première plaque de recouvrement est débrayée du cadre, afin d~ouvrir une seconde partie de l~ouverture.

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