Roller conveyor

• US 3,252,556 A
• Filed: 12/19/1963
• Issued: 05/24/1966
• Est. Priority Date: 01/03/1963
• Status: Expired due to Term

• Current Assignee: Sven-Eric Isacsson
• Original Assignee: Sven-Eric Isacsson
• Inventors: SVEN-ERIC ISACSSON
• Application Number:
  US04/331,801
• Time in Patent Office: 887 Days
• US Class Current: 193/37
• CPC Class Codes: B65G 13/11 Roller frames
• CPC Class Codes: B65G 39/12 mounted on framework

Claims

1. IN A ROLLER CONVEYOR, THE COMBINATION OF A PAIR OF SPACED ELONGATED RAILS WHICH ARE PARALLEL TO ONE ANOTHER, SAID RAILS COMPRISING UPRIGHT MEMBERS WHOSE OUTER SURFACES ARE VERTICAL AND SUBSTANTIALLY FLAT, THE TOPS OF SAID RAILS BEING DEFINED BY THE TOPS OF SAID UPRIGHT MEMBERS WHICH ARE FLAT, AND, IN TRANSVERSE SECTIONS PERPENDICULAR TO SAID ELONGATED RAILS, ARE HORIZONTAL AND DEFINE LOAD SUPPORTING SURFACES, A ROLLER DISPOSED BETWEEN SAID RAILS, SAID ROLLER COMPRISING A FIRST PORTION INTERMEDIATE THE ENDS THEREOF WHICH IS OF CYLINDRICAL FORM AND SECOND END PORTION WHICH ARE OF SMALLER CROSS-SECTIONAL AREA THAN THE FIRST PORTION AND EXTEND AXIALLY THEREFROM, THE SECOND END PORTIONS OF SAID ROLLER BEING STATIONARY AND THE FIRST INTERMEDIATE PORTION THEREOF BEING ROTATABLE WITH RESPECT TO THE SECOND END PORTIONS, THE SECOND END PORTIONS INCLUDING FIRST PARTS OF CYLINDRICAL FROM WHICH EXTEND AXIALLY OF SAID ROLLER TO PROVIDE PERIPHERAL SURFACES RESTING ON THE LOAD SUPPORTING SURFACES DEFINED BY THE TOPS OF SAID UPRIGHT MEMBERS, WHEREBY THE TOPS OF SAID RAILS FUNCTION TO SUPPORT THE ENTIRE LOAD ADAPTED TO BE CARRIED BY SAID ROLLER, AND STRUCTURE FOR HOLDING SAID ROLLER IN A FIXED POSITION LENGTHWISE OF SAID RAILS, COMPRISING MEANS ATTACHED TO SAID UPRIGHT MEMBERS AND EXTENDING VERTICALLY UPWARD FROM TOP SURFACES THEREOF, SAID UPWARD EXTENDING MEANS, IN A VERTICAL PLANE PASSING THROUGH THE AXIS OF SAID ROLLER, DEFINING POSITIONING NOTCHES DIRECTLY OPPOSITE ONE ANOTHER, THE POSITIONING NOTCHES HAVING OPPOSING SPACED VERTICAL SIDE WALLS AND CLOSED ENDS, THE NOTCHES HAVING THEIR CLOSED ENDS AT ONE LEVEL AND THEIR OPEN ENDS AT A HIGHER LEVEL AT THE TOPS OF SAID UPWARD EXTENDING MEANS, THE SECOND END PORTIONS OF SAID ROLLER INCLUDING SECOND PARTS WHICH PROJECT AXIALLY BEYOND THE FIRST PARTS AND EXTEND THROUGH THE POSITIONING NOTCHES BETWEEN THE OPPOSING SIDE WALLS THEREOF TO POSITION SAID ROLLER LENGTHWISE OF SAID RAILS, THE SECOND PARTS OF THE SECOND END PORTIONS SAID RAILS, THE SECOND PARTS OF THE SECOND END PORTIONS OF SAID ROLLER BEING DISPOSED ABOVE THE SECOND END PORTIONS FROM, AND MEANS INCLUDING MEMBERS THREADEDLY CONNECTED TO THE SECOND END PORTIONS OF SAID ROLLER AND AXIALLY MOVABLE THEREON TOWARD AND FROM SAID UPWARD EXTENDING MEANS FOR DETACHABLY FIXING THE SECOND END PORTIONS OF SAID ROLLER TO SAID UPWARDLY EXTENDING MEANS.