Electric overhead trolley system with auxiliary rail and driven auxiliary wheel for traction
AssigneeFredenhagen KG
InventorWerner Knuettel
Life of this patent
Estimating the term…
Abstract
The invention proposes an electric overhead trolley system in which a travelling gear (14) is provided with a motor-driven driving wheel (16) and at least one auxiliary wheel (30) interacting with an auxiliary track (28), at least in certain sections, which auxiliary wheel contributes in transmitting the drive force to a track (10) so that ascending and decending track portions can be run through with less problems.
Claims17
An electric overhead trolley system for conveying and positioning loads, comprising:
- a plurality of conveying units, each unit including at least one motor-driven travelling gear adapted for attaching to objects and being displaced along a track,
- a driving wheel supported on the track;
- at least one auxiliary wheel which interacts with an auxiliary track extending in parallel to at least a portion of the track, and which is frictionally driven by said driving wheel through direct contact with said driving wheel so that driving forces for displacing said conveying unit are divided between said driving wheel and said auxiliary wheel.
An electric overhead trolley system for conveying and positioning loads, having at least one motor-driven travelling gear adapted for being displaced along a track, a driving wheel supported on the track and at least one auxiliary wheel which influences frictional engagement between the driving wheel and the track and which interacts with an auxiliary track extending in parallel to the track, at least along certain sections, wherein the said auxiliary wheel is driven by the said driving wheel by frictional engagement,;
- wherein connection elements receiving a shaft of the said auxiliary wheel are mounted at a point which connection elements may be loaded by a force exerted in the direction of the said driving wheel and the said auxiliary track, by spring elements mounted on said travelling gear frame carrying the said driving wheel, and wherein said connection elements receiving said shaft of the said auxiliary wheel are mounted on said shaft of said driving wheel, and there ar at least one of said spring elements mounted directly on said shafts to exert a force on the said auxiliary wheels in the direction of said driving wheel and said auxiliary track.
An electric overhead trolley system for conveying and positioning loads, comprising:
- a plurality of conveying units, each unit including at least one motor-driven travelling gear adapted for attaching to object and being displaced along a track;
- a driving wheel supported on the track;
- at least one auxiliary wheel which interacts with an auxiliary track extending in parallel to at least a portion of the track, and which is frictionally driven by said driving wheel through direct contact with said driving wheel so that driving forces for displacing said conveying unit are divided between said driving wheel and said auxiliary wheel;
- and
- a least one rocking arm, receiving a shaft of said auxiliary wheel, mounted at a point which said at least one rocking arm may be loaded by a force exerted in the direction of said driving wheel and the said auxiliary track by spring elements mounted on said travelling gear frame carrying said driving wheel.
Dependencies are inferred from the claim text.