Flattener for road paving vehicles such as asphalt finisher

Application Number: 00107983
Application Date: 2000.06.06
Publication Number: 1277287
Publication Date: 2000.12.20
Priority Information: 1999/6/15 JP 168175/99
International: E01C19/48
Applicant(s) Name: Sumitomo Tatsuki Co., Ltd.
Inventor(s) Name: Tameika Terushi;Oseki Masayuki;Ogura Akiji
Patent Agency Code: 11216
Patent Agent: liu jiyang
Abstract The invention provides a screed device in a road-paving vehicle such as an asphalt finisher, enabling the width of pavement to be steplessly changed up to about three times the width of the main screed through a simple operation. A pair of extensible screeds having a width nearly equal to the width of a main screed are arranged back and forth in the direction of progress of the main screed, wherein supports are allowed to move in the direction of width of pavement being supported by support portions provided on both sides at the rear upper portions of the main screed, said extensible screeds are supported by said supports so as to be freely moved in the direction of width of pavement, and the extensible screeds are moved by the feeding devices such as hydraulic cylinders in the directions of width of pavement but opposite to each other from the rear positions of the main screed.