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US 5,173,989 AGranted
Surface sweeping machine with over-the-cab hopper dumping
AssigneeTymco, Inc.
InventorsGary B. Young, Albert L. Hanel, Kenneth R. Veselka
Life of this patent
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AssigneeTymco, Inc.
InventorsGary B. Young, Albert L. Hanel, Kenneth R. Veselka
Estimating the term…
A road sweeper which includes a hopper between a cab and a centrifugal separator, a pair of relatively telescopically extendable and retractable members, one member of each pair being pivoted to a frame of the vehicle and another member of each pair being pivoted to a hopper, a pair of control arms pivoted one each between one of the extendable members and the vehicle, and a tilt cylinder and occupant-protecting mechanism cooperatively operative such that upon relative extension of the extendable and retractable members the control arms effect compound motion of the hopper to a position over-the-cab for subsequent dumping and the automatic interpositioning of the occupant protection mechanism between the hopper and the cab.
A road sweeper comprising a frame having a longitudinal axis, a hopper carried by said frame, said frame carrying a cab, means for moving said hopper from a first position generally contiguous said frame to a second position generally above said cab and remote from said first position along a generally longitudinal path of travel in a first direction and along the same generally longitudinal path of travel in a second opposite direction for moving said hopper from said second position to said first position, said moving means including first and second elongated extendable and retractable members, said elongated members each having a longitudinal axis, said elongated member longitudinal axes being in substantial parallel relationship to said longitudinal path of travel, means for connecting said hopper to said first member, means for articulately connecting said second member to said frame, means for selectively extending and retracting said members relative to each other to respectively move said hopper from said first position to said second position and vice versa, control means between one of said members and said frame for imparting a generally arcuate component of movement to said hopper moving means during movement of said hopper moving means along said longitudinal path of travel, means for pneumatically removing debris from a surface, and means for pneumatically conducting air-entrained debris from said removing means into said hopper when said hopper is in the first position thereof.
A road sweeper comprising a frame having a longitudinal axis, a hopper carried by said frame, said frame carrying a cab, means for moving said hopper from a first position generally contiguous said frame to a second position generally above said cab and remote from said first position along a generally longitudinal path to travel in a first direction and along the same generally longitudinal path of travel in a second opposite direction for moving said hopper from said second position to said first position, said moving means including first and second elongated extendable and retractable members, said elongated members each having a longitudinal axis, said elongated member longitudinal axes being in substantial parallel relationship to said longitudinal path of travel, means for connecting said hopper to said first member, means for articulately connecting said second member to said frame, means for selectively extending and retracting said members relative to each other to respectively move said hopper from said first position to said second position and vice versa, and control means between one of said members and said frame for imparting a generally arcuate component of movement to said hopper moving means during movement of said hopper moving means along said longitudinal path of travel.
Dependencies are inferred from the claim text.