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US 4,228,738 AGranted
Conveyor trolley construction
OwnerDavid J. Forsheeinventor
Life of this patent
Estimating the term…
Abstract
A conveyor trolley structure made of a plastic super tough nylon material comprises a pair of arms each supporting a wheel for rotation and bearing upon the flanges of an I-beam monorail. A pendant member is secured to and between the lower ends of the arms. Metal screws are used to hold the depending member to the arms and to secure stub axles for the trolley wheels to their arms.
Claims19
In a trolley assembly for operation in an I-beam monorail conveyor system, the combination comprising
- a pair of spaced apart unitary integrally formed molded plastic trolley arms, each trolley arm having an upper portion, a lower portion and an intermediate web portion,
- a pair of unitary integrally formed molded plastic stub axles, each stub axle being easily removably attached to one said trolley arm, upon and adjacent the inward face of said upper portion,
- a pair of unitary integrally formed molded plastic trolley wheels, each wheel being removably supported for rotation on and retained by said stub axle on the inward side of said trolley arm upper portion,
- removable fastening means extending through said upper portion from its outer side and into said stub axle fixedly securing said stub axle against rotation to said upper portion inward face,
- and a parts carrying pendant member removably secured to and between the lower portions of said trolley arms.
2 more elements
Dependencies are inferred from the claim text.