Drive arrangement for a retractable folding roof

A drive arrangement for a retractable folding roof having a front roof part and a rear roof part, comprising:

• a pivot drive for the front roof part, the front roof part being mounted on a vehicle body through lateral pillars and two double-acting operating cylinders, each one of said two double-acting operating cylinders being supported at one end on said body and at another end in an articulated manner on a lever arm of an assigned lateral pillar;
• a lever mechanism for a movement coupling of the rear roof part to the front roof part during common pivot-movement phases, wherein the lever mechanism comprises on each side of the retractable folding roof, an L-shaped crank-rocker lever mounted on the assigned lateral pillar and having a rocker end for pivoting an assigned side leg of the rear roof part and a lever linkage coupled at one end to the L-shaped crank rocker lever and at another end to one of said two double-acting operating cylinders;
• wherein said two double-acting operating cylinders, serving as said pivot drive for the front roof part also serve for relative pivoting of the rear roof part;
• a rotary-slide articulation through which said two double-acting operating cylinders are connected to the respective lever arm of the respective lateral pillar;
• wherein said rotary-slide articulation for the operating cylinder includes a joint bolt slidingly guided in a slot of said lever arm;
• further comprising a locking mechanism for blocking said rotary-side articulation;
• and
• wherein said locking mechanism comprises a plate cam mounted on the lever arm of the lateral pillar, said plate cam interacting in the manner of a rotary latch with a catch bolt, said catch bolt being movable by said joint bolt.

A drive arrangement for a retractable folding roof having a front roof part and a rear roof part, comprising:

• a pivot drive for the front roof part, the front roof part being mounted on a vehicle body through lateral pillars and two double-acting operating cylinders, each one of said two double-acting operating cylinders being supported at one end on said body and at another end in an articulated manner on a lever arm of an assigned lateral pillar;
• a lever mechanism for a movement coupling of the rear roof part to the front roof part during common pivot-movement phases, wherein the lever mechanism comprises on each side of the retractable folding roof, an L-shaped crank-rocker lever mounted on the assigned lateral pillar and having a rocker end for pivoting an assigned side leg of the rear roof part and a lever linkage coupled at one end to the L-shaped crank rocker lever and at another end to one of said two double-acting operating cylinders;
• wherein said two double-acting operating cylinders, serving as said pivot drive for the front roof part also serve for relative pivoting of the rear roof part;
• a rotary-slide articulation through which said two double-acting operating cylinders are connected to the respective lever arm of the respective lateral pillar;
• wherein said rotary-slide articulation for the operating cylinder includes a joint bolt slidingly guided in a slot of said lever arm;
• further comprising a locking mechanism for blocking said rotary-side articulation;
• and
• a means for unlocking the locking mechanism via an overload stroke of an associated operating cylinder.

A drive arrangement for a retractable folding roof having a front roof part and a rear roof part, comprising:

• a pivot drive for the front roof part, the front roof part being mounted on a vehicle body through lateral pillars and two double-acting operating cylinders, each one of said two double-acting operating cylinders being supported at one end on said body and at another end in an articulated manner on a lever arm of an assigned lateral pillar;
• a lever mechanism for a movement coupling of the rear roof part to the front roof part during common pivot-movement phases, wherein the lever mechanism comprises on each side of the retractable folding roof, an L-shaped crank-rocker lever mounted on the assigned lateral pillar and having a rocker end for pivoting an assigned side leg of the rear roof part and a lever linkage coupled at one end to the L-shaped crank rocker lever and at another end to one of said two double-acting operating cylinders;
• wherein said two double-acting operating cylinders, serving as said pivot drive for the front roof part also serve for relative pivoting of the rear roof part;
• a rotary-slide articulation through which said two double-acting operating cylinders are connected to the respective lever arm of the respective lateral pillar;
• wherein said rotary-slide articulation for the operating cylinder includes a joint bolt slidingly guided in a slot of said lever arm;
• further comprising a locking mechanism for blocking said rotary-side articulation;
• and
• further comprising a spring-loaded cam-follower arrangement provided for unlocking said locking mechanism.