Belt steering roller mechanism and steering roll construction
Patent 5246099 Issued on September 21, 1993. Estimated Expiration Date: 
September 23, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 23, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2593158 2643116 2752151 3052395 3095131 3807982 Belt support and control system Belt alignment system Web-steering mechanisms Patent #: 5078263 InventorAssigneeApplicationNo. 961552 filed on 09/23/1992US Classes:198/807, With power drive (e.g., pressure cylinder or electric motor, etc.) for skewing revolvable means198/840, Guide exerting lateral force on nonload-supporting belt surface198/843, Resilient226/19, Laterally movable support226/179For shifting roll(s) axiallyExaminersPrimary: Valenza, Joseph E.Attorney, Agent or FirmForeign Patent References
International ClassB65G 039/16AbstractA belt steering roller mechanism for active steering correction of an endless belt, including a shaft having a longitudinal axis and a deformable roller having a fore end and an aft end and a predetermined diameter. The roller is rotatable about the shaft and has a body including a plurality of longitudinally extending rigid members located near the outer diameter of the roll separated by a plurality of longitudinally extending deformable sections. The body may be elastomeric or may be rigid with flexible hinges to provide differential lateral velocity of an outer circumferential surface of the roller. At least one flange plate is located against one of the fore end and aft end and is flexibly held on the shaft by a flexible coupling. Upon a corrective force being applied to the flange plate by an articulating mechanism, the longitudinally extending rigid members are laterally displaced in a cyclic fashion by the flange plate. The outer surface of the steering roller may be textured or coated with a thin sleeve of high friction coefficient material to aid in controlling the belt.Field of SearchRevolvable means engaging carrier belt face automatically skews to correct belt training deviationWith power drive (e.g., pressure cylinder or electric motor, etc.) for skewing revolvable means Guide exerting lateral force on nonload-supporting belt surface Resilient Rotatable support or hold-down engaging non-load-carrying face of belt Laterally movable support Responsive to photocell detection For shifting roll(s) axially With sensor for controlling operation of shifter to correct belt training deviation Shifter driven by electrical or fluid motor For shifting belt laterally | |
