US 4,399,908 AGranted

Structural element

AssigneeMasyc AG

InventorRolf Gunti

Life of this patent

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Abstract

Structural elements are disclosed for assembly into supporting frames for conveyors and which include elongate beams of constant, uniform generally sigma-shaped cross section but having one arm substantially shorter than the other. Elements for use in connecting such means and mounting other members thereon are disclosed, including chain guides which are adapted for fitting within the sigma section beams and are adapted to enclose corresponding chain sprockets.

Claims8

Dependent claims

A set of structural elements for producing longitudinally extending support frames for conveying devices, said support frames being disposed parallel to the conveying direction and on opposed sides of the conveyor path, said conveying devices including a cylindrical roller having a central spindle and a pinion at one end thereof, said roller being driven by a chain entrained around said pinion, said set of structural elements comprising:

a plurality of detachably connected sectional bars, each said sectional bar including a middle web member (12) having openings (14) at regular intervals therealong, and adjoined on both sides in the outward direction by sloping web members, bent at a defined angle, the ends of which merge with a connecting member (20, 22) which is parallel with the middle web member and is associated with U-section flanges which face each other, with one U-section flange (20) having a broad U-web member (16), the latter together with the middle web member being dimensioned for maximum torsion and bending load values for said sectional bars, and with the other U-section flange (22) having its outside free member (30) situated in the region of the plane containing the inwardly oriented surface of the middle web member;
and
a chain guide member having first and second angled plate members (78, 76) disposed in perpendicular relationship, said first angled plate member (78) including a central aperture for receiving said central spindle of said roller, said chain guide member further including a pair of guard caps formed integrally with said first angled plate member and projecting perpendicularly outwardly therefrom towards said roller, said guard caps being spaced from said second angled plate member (76) thereby defining a chain receiving channel, said guard caps being configured to extend over and be spaced from a portion of the circumference of the pinion of said roller, and with said second angled plate member further including a guide rail for urging said chain, disposed within said chain receiving channel, into driving engagement with said pinion, and with said first angled plate member further including a pair of anchor cams (84), projecting outwardly therefrom, opposed to said guard caps, said anchor cams being receivable in said openings (14) formed in said middle web member (12) when said guide member is mounted on said sectional bar with said first angled plate member (78) being in face to face contacting relationship with said inner surface of said middle web member (12) and with said second angled plate member (76) being disposed parallel and adjacent to said broad U-web member (26), said broad U-web member thereby shielding said second angled plate member (76), and whereby said anchor cams (84) are operative to prevent the rotation of said chain guide member relative to said sectional bar.

Dependencies are inferred from the claim text.

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Abstract

a plurality of detachably connected sectional bars, each said sectional bar including a middle web member (12) having openings (14) at regular intervals therealong, and adjoined on both sides in the outward direction by sloping web members, bent at a defined angle, the ends of which merge with a connecting member (20, 22) which is parallel with the middle web member and is associated with U-section flanges which face each other, with one U-section flange (20) having a broad U-web member (16), the latter together with the middle web member being dimensioned for maximum torsion and bending load values for said sectional bars, and with the other U-section flange (22) having its outside free member (30) situated in the region of the plane containing the inwardly oriented surface of the middle web member;
and
a chain guide member having first and second angled plate members (78, 76) disposed in perpendicular relationship, said first angled plate member (78) including a central aperture for receiving said central spindle of said roller, said chain guide member further including a pair of guard caps formed integrally with said first angled plate member and projecting perpendicularly outwardly therefrom towards said roller, said guard caps being spaced from said second angled plate member (76) thereby defining a chain receiving channel, said guard caps being configured to extend over and be spaced from a portion of the circumference of the pinion of said roller, and with said second angled plate member further including a guide rail for urging said chain, disposed within said chain receiving channel, into driving engagement with said pinion, and with said first angled plate member further including a pair of anchor cams (84), projecting outwardly therefrom, opposed to said guard caps, said anchor cams being receivable in said openings (14) formed in said middle web member (12) when said guide member is mounted on said sectional bar with said first angled plate member (78) being in face to face contacting relationship with said inner surface of said middle web member (12) and with said second angled plate member (76) being disposed parallel and adjacent to said broad U-web member (26), said broad U-web member thereby shielding said second angled plate member (76), and whereby said anchor cams (84) are operative to prevent the rotation of said chain guide member relative to said sectional bar.