Motorized conveyor roller
AssigneeInterroll Holding A. G.
InventorCharles Agnoff
Life of this patent
Estimating the term…
Abstract
A motorized conveyor roller is mounted in a conveyor frame to support and propel articles from one end of the conveyor path towards the opposite end. The conveyor roller includes a roller tube rotatably mounted in the conveyor frame and a drive means contained inside the roller tube for driving the roller tube. The drive means includes a motor; a gear reducer assembly operatively connected to the motor; and a drive member connected to the output shaft of the speed reducer for engaging and rotating the roller tube. The drive member preferably includes an elastomeric means for frictionally engaging the inner wall of the roller tube, and a clutch means adapted to slip at a predetermined torque to protect the motor and gear reducer assembly from torque overload.
Claims21
A motorized conveyor roller comprising:
- a roller tube;
- means for rotatably mounting the roller tube in a conveyor frame;
- a motor mounted inside the roller tube, said motor being non-rotatable relative to the conveyor frame;
- a gear reducer mounted inside the roller tube and operatively connected to the motor, said gear reducer including an output shaft;
- a drive member having an outer periphery frictionally engaged with the inner wall of the roller tube for rotating the roller tube, said driving member being driven by the gear reducer output shaft.
A motorized conveyor roller comprising:
- a) a roller tube;
- b) means for rotatably mounting the roller tube in a conveyor frame so that the roller tube engages article carrier on the conveyor;
- c) drive means for rotating the roller tube mounted inside the roller tube to propel the articles carried thereby, the drive means including:
- 1) a motor mounting;
- 2) a gear reducer assembly operatively connected to the motor and including an output shaft;
- 3) a drive member mounted on the output shaft of the gear reducer assembly and including elastomeric means for frictionally engaging the inside of the roller tube to drive the roller tube;
- and
- 4) clutch means operatively engaged with the drive member for protecting the motor and gear reducer assembly from torque overload.
A motorized conveyor roller comprising:
- a) a roller tube;
- b) means for rotatably mounting the roller tube in a conveyor frame so that the roller tube engages articles carried on the conveyor, the mounting means including:
- 1) first and second end caps made from an insulating material mounted at opposite ends of the roller tube;
- 2) bearing means disposed inside the first and second end caps;
- and
- 3) first and second mounting shafts rotatably journalled in respective bearing means and projecting from opposite ends of the roller tube to engage a conveyor frame, the first mounting shaft being made of an electrically conductive material and having an axial opening extending therethrough;
- c) drive means mounted inside the roller tube for rotating the roller tube to propel the articles carried thereon, the drive means including an electric motor, a gear reducer assembly, and a drive member engaged with the inside of the roller tube.
- d) electrical supply means for supplying current to the electrical motor including:
- 1) a power supply having a positive terminal and a negative terminal;
- 2) a positive plate electrically connected to the motor;
- 3) electrical conductor means extending through the axial opening in the first mounting shaft to electrically connect the positive plate to a positive terminal of an external power source;
- 4) insulating means for insulating the electrical conductor means from the first mounting shaft;
- 5) a ground plate electrically connected to the motor and the first mounting shaft;
- and
- 6) wherein the conveyor frame serves as a ground path to electrically connect the mounting shaft to a negative terminal of the external power supply.
Dependencies are inferred from the claim text.