| 摘要 |
A transfer assembly 70 for a dispenser 10 for dispensing wound sheet material, such as paper toweling, from a primary roll P and a reserve roll R includes a transfer arm 80 having a pair of transfer fingers 82 under which the leading end 90 of the sheet material 74 from the reserve roll is disposed, and a sensing arm 76 including a sensing surface 78 over which rides sheet material 72 from the primary roll being fed into the nip 50 between a drive roller 46 and a pressure roller 48. The transfer arm 80 and sensing arm 76 are mounted for common movement between a non-transfer position wherein the sheet material 72 riding over the sensing surface 78, in cooperation with the pulling force being applied thereon by the drive roller 46, holds the transfer fingers 82 away from the nip 50, and a transfer position wherein, in response to the tail end of the sheet material being detached from the primary roll P, the transfer arm 80 moves toward the nip 50 and the transfer fingers 82 push sheet material 74 from the reserve roll R into the nip. Subsequent rotation of the drive roller 46 causes the sheet material from the reserve roll to be fed through the nip and dispensed from the dispenser. <IMAGE> |
