Belt conveyor structure

• US 4,598,819 A
• Filed: 02/16/1984
• Issued: 07/08/1986
• Est. Priority Date: 03/03/1983
• Status: Expired due to Term

• Current Assignee: Sipavag AG
• Original Assignee: Sipavag AG
• Inventors: Siegwart, Wolfgang
• Primary Examiner(s): Valenza, Joseph E.
• Assistant Examiner(s): Dayoan, D. Glenn
• Application Number:
  US06/580,707
• Time in Patent Office: 873 Days
• Field of Search: 198/860, 198/862, 198/804, 198/842, 198/816, 198/780, 198/841, 198/835, 198/861.1
• US Class Current: 198/861.1
• CPC Class Codes: B65G 21/02 consisting essentially of struts, ties, or like structural elements
• CPC Class Codes: B65G 21/10 movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof
• CPC Class Codes: B65G 39/02 Adaptations of individual rollers and supports therefor

Abstract

A supporting frame of a conveyor, over the top side of which the upper section of an endless conveyor belt is trained, comprises two identical symmetrically arranged angle sections. The upper legs of the angle sections are firmly connected to each other by an intermediate plate of any width. The lateral legs of the angular sections support at each end of the frame a pair of journal pins on which end sleeves are mounted for rotation. The two identical end sleeves are fimly connected to each other through a roller sleeve having a length corresponding to the spacing of the sleeves. By choosing the connecting members which are simple to adapt, namely the intermediate plate and the roller tubes, series manufactured stock elements, namely the longitudinal members of the frame and the end sleeves of the guide rollers, can be used for conveyors of various widths.

Claims

1. An adjustable width belt conveyor structure comprising:

a pair of identical longitudinally extending angle members, each having a first leg forming a top surface and a second leg forming a side surface;

an intermediate transverse member of selected width connected fixedly between said first legs of respective said angle members so as to position one of said angle members in spaced apart substantially parallel relationship with the other said angle member;

a journal pin connected to said second leg of each of said angle members, said pins being axially aligned with one another and extending between said second legs;

a sleeve rotatably supported on each one of said journal pins, said sleeves being identical and being disposed in spaced aligned relationship between said second legs;

a roller tube of selected width detachably mounted between and engaged coaxially over said sleeves;

each of said sleeves having a cylindrical portion extending at least partly and being fixed to said roller tube, each of said sleeves having an axially outer portion extending axially outwardly of said roller tube, said cylindrical portion of each sleeve extending radially inwardly of said outer portion of each sleeve, said outer portion of each sleeve tapering slightly axially outwardly of said roller tube;

a conveyor belt of selected width trained over said roller tube;

drive means; and

, a drive belt associated with said main drive means being engaged over said cylindrical portion of one of said sleeves wherein, the width of the conveyor belt structure may be adjusted by changing the width of the intermediate transverse member selected, the width of the roller tube selected and the width of the conveyor belt selected.

2. An adjustable width belt conveyor structure according to claim 1, further comprising:

a side plate connected to said second leg of one of said members;

wherein said drive means includes a drive unit connected to said side plate.

3. A belt conveyor structure according to claim 2, wherein said drive belt is engaged on said cylindrical portion of said one sleeve next to said roller tube on said one sleeve, said conveyor belt being trained over said drive belt, said conveyor belt also being trained over at least a part of said outer portion of each sleeve.

4. A belt conveyor structure according to claim 3, wherein said drive unit comprises a drive motor connected to said side plate, a pulley connected to said drive motor for rotation, a pulley bracket connected to said angle member to which said side plate is connected, a double pulley rotatably mounted to said pulley bracket, a further drive belt trained around said pulley which is connected to said motor and one pulley of said double pulley, said first-mentioned drive belt being connected to a second pulley of said double pulley, said second drive belt being disposed axially outwardly of said conveyor belt and between said second legs of said angle members.