Back to results
US 4,051,744 AGranted
Gear mechanism for preventing reverse rotation
AssigneeSeikosha Co., Ltd.
InventorKenji Oshima
Life of this patent
Estimating the term…
Abstract
A drive pinion is provided with wide teeth and narrow teeth. A follower wheel is provided with teeth which have cut-away portions at their front sides. When the drive pinion rotates in reverse direction, one wide tooth makes contact with an apex of a tooth of the follower gear wheel thereby preventing the reverse rotation of the drive pinion.
Claims1
A gear mechanism for preventing reverse rotation comprising:
- a drive pinion having alternately disposed wide teeth and narrow teeth and having larger interdental spaces in front of the wide teeth than at the back thereof,
- and a follower gear wheel having teeth formed with cut-away portions at their front sides.
Dependencies are inferred from the claim text.