B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
B65G 21/02 (2006.01) B65G 21/06 (2006.01) B65G 23/44 (2006.01)
Patent
CA 2356028
A conveyor construction includes a conveyor frame formed of a pair of side frame members which are interconnected with each other via a bed plate which underlies an endless conveyor belt. The side frame members may also be interconnected by a bottom wall formed integrally with the side frame members and extending therebetween, or via a separate bottom plate member that is mounted to the side frame members. The bed plate and the lower plate are connected using a connection arrangement which enables the bed plate and lower plate to be connected to the side frame members at any point along the length of the side frame members. The connection arrangement includes slot-type engagement structure which extends throughout the length of each side frame member, and which is capable of receiving threaded fasteners, such as self-tapping screws, which extend through openings formed in the bed plate and the lower plate. In this manner, the side frame members can be selectively cut to a desired length and openings can be formed in the bed plate and lower plate at any location, and self-tapping screws can extend through the openings into engagement with the slot structure for mounting the bed plate and the lower plate to and between the side frame members. The side frame members define passages within which gear racks are received, and a rotatable pinion is engaged with the gear racks for providing extension and retraction of the gear racks upon rotation of the pinion. The gear racks engage head plates movably mounted to the side frame members, and a spindle is rotatably mounted to and extends between the head plates. In this manner, extension of the gear racks result in outward movement of the head plates, and thereby tensioning of the belt. When proper belt tensioning is attained, the head plates are secured in position using retainer members secured within T-slots formed in the side frame members. The spindles are mounted to the head plates via spherical bearings to provide proper belt tracking. The bearings are engaged with the spindle via endwise engagement structure.
Ertel Daniel E.
Hall Scott M.
Hosch Michael A.
Dorner Mfg. Corp.
Moffat & Co.
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