Method of mounting curtain wall units and constructions thereof

Claim 1

A construction of mounting curtain wall units comprising a mullion with front and back sides, hook means secured to said back side of said mullion constituting a curtain wall unit, a building body with a front surface, a supporting member secured to said front surface of said building body for engagement with said hook means, projecting member provided to be projected upwardly spaced apart from each other on an upper edge portion of the curtain wall unit and a seal member, a lower edge portion of the curtain wall unit having a groove at a position corresponding to said seal member and engaging therewith, and bracket means secured to said lower edge portion of the curtain wall unit, an engaging portion of said bracket means formed at a position corresponding to said projecting member and engaging therewith, characterized in that said projecting member and seal member provided on the upper edge portion of a lower one of a pair of vertically adjacent curtain wall units are respectively engaged with the engaging portion of said bracket provided on the lower edge portion of the upper unit and the groove of the lower edge portion, said hook means being engaged with said supporting member wherein said engaging portion formed in the bracket secured to the lower edge portion of the curtain wall unit comprises an elongated hole extending in a direction parallel to the curtain wall surface, whereby the curtain wall unit to be mounted is moved in a direction parallel to the curtain wall surface.