Patent ID: 8307878
Filing Date: 2012-11-13
Classification: E06B,H02K

Abstract:
1. A covering for an architectural opening comprising in combination: an elongated hollow headrail, an elongated roll bar rotatably supported within said headrail, a flexible shade material having an upper edge secured to said roll bar and being selectively wrapped about or unwrapped from said roll bar upon rotation of said roll bar, and a drive system having an axially aligned drive shaft with a coupler operatively connected thereto adapted for driving engagement with said roll bar, a first cylindrical support axially aligned with said drive system including a first resilient member and a second rigid member at least partially received within said first resilient member, said first cylindrical support being of larger diameter than said drive system, and a housing surrounding said drive system and said first cylindrical support, said housing having an inner cylindrical surface corresponding in diameter to the diameter of said first cylindrical support, wherein said first resilient member has a durometer rating less than that of said drive system; and said first cylindrical support is substantially prevented from rotating relative to said drive system.