Patent ID: 8763675

Claim:
A window shade comprising a frame, a shade, a shade driving mechanism, and a bead chain for driving the shade driving mechanism, with the shade driving mechanism fixed to the frame to drive the shade to release or wind, with a barrel mounted to the frame at a location corresponding to the bead chain, with the barrel including a peripheral wall having a slit extending in an axial direction, with a sliding block slideably received in the barrel, with a handle mounted outside of the barrel, with the sliding block connected to the handle by a link extending through the slit, with the bead chain including first and second sections received in the barrel, with a fixed pulley mounted to an end of the barrel, with the bead chain wound around the fixed pulley, with the sliding block fixed to the first section of the bead chain in the barrel, with the sliding block including a passageway in an intermediate portion thereof, with the first section of the bead chain in the barrel fixed in an end of the passageway, with the second section of the bead chain slideably extended through another end of the passageway, with a stop member pivotably mounted by a shaft to the sliding block, and with the stop member including a stop and a pressing handle.