Cord tension pulley assembly

Claim 2

In a double traverse rod assembly including first and second traverse rods respectively having first and second draw cord loops at one end of the rod assembly, a dual cord tension pulley assembly for the double traverse rod assembly comprising a dual pulley-mounting head, first and second cord guide pulleys mounted on said dual mounting head for rotation relative thereto about spaced parallel axes, said head being open in areas above said fiRst and second pulleys to allow said first and second cord loops to pass around said first and second pulleys respectively and then up to the respective first and second traverse rods, a base mounting bracket adapted for attachment to a support, an elongate cord-tensioning means having its lower end connected to said base mounting bracket and means at its upper end pivotally connected to said mounting head at a location substantially medially between said first and second pulleys and at a level below the underside thereof to allow tilting of said head to substantially equalize the tension in the first and second cord loops.

Claim 3

The combination of claim 1 wherein said head includes a pulley support plate overlying one end of said first and second pulleys and extending therebetween, said cord-tensioning means being connected to said pulley support plate, and a pulley cover plate separate from said mounting plate and dimensioned to overlie the other ends of said first and second pulleys, and means mounting said cover plate for movement relative to said mounting plate from a position overlying the ends of said first and second pulleys to a position uncovering the end of one pulley to allow the first and second cord loops to be inserted and removed over said other ends of said first and second pulleys.

Claim 4

The combination of claim 2 wherein said means mounting said cover plate comprises a fastener extending through the cover plate, said first pulley and the mounting plate and mounting said first pulley and said cover plate on the mounting plate, said cover plate being swingable about the axis of said fastener into and out of overlying relation to the other end of said second pulley, and means for releasably holding said cover plate in covering position over the end of said second pulley.

Claim 5

The combination of claim 3 wherein said means for releasably holding said cover plate in covering position includes a releasable fastener extending between the cover plate and mounting plate at a location between the pulleys and above the underside of the pulleys.

Claim 6

A dual cord tension pulley assembly for double and single traverse rod installations comprising, first and second cord guide pulleys, a dual pulley mounting head including a mounting plate overlying only one end of said first and second pulleys and a cover plate adapted to overlie only the other ends of said first and second pulleys, first and second pulley-mounting members rotatably mounting said first and second pulleys on said mounting plate for rotation relative thereto about spaced parallel axes, said dual pulley mounting head being open in areas above said pulleys to allow separate cord loops to pass down and around the first pulley and second pulley, a base mounting bracket adapted for attachment to a support, an elongate cord-tensioning means having its lower end connected to said base mounting bracket and means at its upper end swingably connected to said mounting plate at a location substantially medially between said first and second pulleys and at a level below the underside thereof, and means mounting said cover plate on said mounting plate for movement relative thereto from a position overlying said other ends of both said first and second pulleys to a position uncovering the end of at least one of said cord guide pulleys to allow cord loops to be inserted and removed from said other ends of first and second cord guide pulleys.

Claim 7

A dual cord tension pulley assembly for double and single traverse rod installations comprising, first and second cord guide pulleys, a dual pulley mounting head including a mounting plate overlying only one end of said first and second pulleys and a cover plate adapted to overlie only the other ends of said first and second pulleys, first and second pulley-mounting members rotatably mounting said first and second pulleys on said mounting plate for rotation relative thereto about spaced parallel axes, said dual pulley mounting head being open in areas above said pulleys to allow separate cord loops to pass down and around the first pulley and second pulley, a base mounting bracket adapted for attachment to a support, an elongate cord-tensioning means having its lower end connected to said base mounting bracket and means at its upper end swingably connected to said mounting plate at a location substantially medially between said first and second pulleys and at a level below the underside thereof, and means mounting said cover plate on said mounting plate for movement relative thereto from a position overlying said other ends of both said first and second pulleys to a position uncovering the end of at least one of said cord guide pulleys to allow cord loops to be inserted and removed from said other ends of first and second cord guide pulleys.

Claim 8

A tension pulley assembly according to claim 5 wherein means attaching said cover plate to said mounting plate includes a fastener extending between said cover plate and said mounting plate at a location between said first and second pulleys at a level above the underside of the first and second pulleys.

Claim 9

A tension pulley assembly according to claim 5 wherein said cover plate is swingably mounted on said first pulley-mounting member at the other end of the latter for swinging movement into and out of a position overlying the other end of said second pulley, and means for releasablY securing said cover member in position overlying said second pulley.

Claim 10

A tension pulley assembly according to claim 7 wherein said last mentioned means includes a threaded fastener extending between said cover plate and said mounting plate at a location between said first and second pulleys and at a level above the underside of said pulleys.

Claim 11

A tension pulley assembly according to claim 8 wherein said cover plate has a socket for adapting to register with said second pulley-mounting member, said second pulley mounting member extending into said socket when the cover plate is in cover position over the second pulley.