Patent ID: 7624847

Claim:
A modular drive for an elevator installation having a car and a counterweight connected by support means for movement in an elevator shaft, comprising: a drive module having a housing at which a drive motor, a drive pulley driven by said drive motor and first interfaces for attachment of extensions are arranged, wherein said drive module housing encircles said drive pulley and is attached to one of a roof of the shaft and a floor of a machine room at an upper end of the shaft, said drive module housing extending about said drive pulley including first portions extending along opposite sides of said drive pulley and second portions extending in a direction of an axis of rotation of said drive pulley and connecting with said first portions; and a deflecting module having a housing at which a deflecting roller and second interfaces for attachment of said extensions are arranged, the support means being guided over said drive pulley and said deflecting roller, and wherein said deflecting module housing encircles said deflecting roller and is attached to one of a roof of the shaft and a floor of a machine room at an upper end of the shaft separately from said drive module housing, said deflecting module housing extending about said deflecting roller including third portions extending along opposite sides of said deflecting roller and fourth portions extending in a direction of an axis of rotation of said deflecting roller and connecting with said third portions, said first and second interfaces slidably attaching each of said drive module housing and said deflecting module housing via said extensions, and enabling said drive module housing and said deflecting module housing to be independently moved relative to said extensions when attached thereto.