The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 1991
Filed:
Aug. 04, 1989
Dirk Heims, Bad Munder, DE;
ABG-Werke GmbH, , DE;
Abstract
The invention relates to a laying plank for a road finishing machine comprising a basic plank (1) which exhibits two central upright cheeks (2) to which an extension cylinder (3) is attached on each side which guides an inner movable cheek (8) of an extensible plank (4) for the lateral prolongation of the basic plank (1) and engages an outer movable cheek (5) for extending, at least one guide rod (6) parallel to the cylinder axis being provided respectively between inner and outer movable cheeks (5, 8), which is guided by an outer cheek (7) connected firmly to the basic plank (1). In order that the extensible planks can be extended by half the width of the basic plank, it is provided that at least two guide rods (10, 11) parallel to the cylinder axis are arranged outside the region of the outer stationary cheek (7) between inner and outer movable cheeks (5, 8), which guide two guide cheeks (12) arranged at a mutual interval and connected to the extensible plank (4), a guide rod (11) being embraced by a cylinder (13) connected to the guide cheeks (12) and provided with an annular piston (14) stressable on both sides, and the stroke of the cylinder (13) corresponding substantially to the interval between the inside of the inner cheek (8) and the outside of the basic plank (1) in the extendded state of the extensible plank (4).