Dual source drive system
AssigneeR. R. Donnelley & Sons Company
InventorBobby Chang
Life of this patent
Estimating the term…
Abstract
A drive system for use in rotating a drive shaft of a component of a binding line can be selectively coupled to a primary motive power source associated with the binding line or to a secondary motive power source operated out of synchronization with binding line. The drive system includes a first drive pulley connected to the primary motive power source, a second drive pulley connected to the secondary motive power source and a double-sided drive belt which engages the drive shaft. A pulley set is coupled to the double-sided drive belt and is rotatable about a pivot point between first and second positions to transfer the double-sided drive belt between the first and second drive pulleys.
Claims30
A drive system which is connected to a motive power source and which is capable of rotating a drive shaft at one of a plurality of speeds, comprising:
- a first drive pulley capable of rotating the drive shaft at a first speed;
- a second drive pulley capable of rotating the drive shaft at a second speed;
- a double-sided drive belt selectively engagable with one of the first and second drive pulleys and further engaged with the drive shaft wherein the double-sided drive belt rotates the drive shaft in response to the rotation of the one of the first and second drive pulleys;
- and
- means coupled to the double-sided drive belt for transferring the double-sided drive belt from one of the first and second drive pulleys to the other of the first and second drive pulleys.
A drive system which connects a drive shaft to one of first and second motive power sources, comprising:
- a first drive pulley coupled to the first motive power source;
- a second drive pulley coupled to the second motive power source;
- a double-sided drive belt selectively engagable with one of the first and second drive pulleys and further engaged with the drive shaft wherein the double-sided drive belt rotates the drive shaft in response to the rotation of the one of the first and second drive pulleys;
- and
- means coupled to the double-sided drive belt for transferring the double-sided drive belt from one of the first and second drive pulleys to the other of the first and second drive pulleys.
A drive system which rotates a drive shaft of a component of a binding line, wherein the binding line includes a primary motive power source which drives a line shaft and a secondary motive power source, comprising;
- a first drive pulley connected to the line shaft;
- a second drive pulley connected to the secondary motive power source;
- a double-sided drive belt selectively engagable with one of the first and second drive pulleys and further engaged with the drive shaft wherein the double-sided drive belt rotates the drive shaft in response to the rotation of the one of the first and second drive pulleys;
- and
- a pulley set moveable in an arcuate path about a pivot point between a first position and a second position wherein a first pulley of the pulley set engages the double-sided drive belt when the pulley set is in the first position and a second pulley of the pulley set engages the double-sided drive belt when the pulley set is in the second position.
A method of providing motive power produced by first and second motive power sources to a drive shaft, the method comprising the steps of:
- providing a movable idler pulley set, a doublesided drive belt coupled to the idler pulley set and to the drive shaft and first and second drive pulleys coupled to the first and second motive power sources, respectively;
- selectively moving the idler pulley set to a first position to engage the double-sided drive belt with the first drive pulley thereby to couple the first motive power source to the drive shaft;
- and
- selectively moving the idler pulley set to a second position to engage the double-sided drive belt with the second drive pulley thereby to couple the second motive power source to the drive shaft.
Dependencies are inferred from the claim text.