US3575282A - Articulated, wheeled chain for industrial conveyors - Google Patents

Articulated, wheeled chain for industrial conveyors Download PDF

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Publication number
US3575282A
US3575282A US769228A US3575282DA US3575282A US 3575282 A US3575282 A US 3575282A US 769228 A US769228 A US 769228A US 3575282D A US3575282D A US 3575282DA US 3575282 A US3575282 A US 3575282A
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United States
Prior art keywords
knee
track
pin
chain
wheels
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Expired - Lifetime
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US769228A
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English (en)
Inventor
Cesare Gaiotto
Alvise Gaiotto
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/10—Arrangements of rollers
    • B65G39/20—Arrangements of rollers attached to moving belts or chains

Definitions

  • Said articulated chain is characterized by a particular design and linking of the different rigid members thereof, that form two by two the chain links, in such a manner that the bearing wheels of said chain are caused to always work at rolling friction, even when the chain is traveling along curved track sections having a small radius.
  • the design of the articulated chain according to the invention are such as to impart an unusually high degree of ruggedness to the chain, said chain preferably being engaged in a track having a spider cross section which is far more stable than a track of square cross section.
  • the articulated wheeled chain for industrial conveyors is characterized in that it consists of a plurality of rigid elements, each of which is linked with both adjacent rigid elements by means of pins perpendicular with one another and fitted on both ends with wheels which have rotation planes that are also perpendicular with one another, each rigid element consisting of a metal plate, having a suitable thickness, which is sheared generally into strip form and arcuately bent at 180 in its central area, thereby provide a U-shape knee with two spaced parallel arms extending therefrom.
  • a bushing wherein the related central portion of a pin, by which the considered element is linked with the adjacent one, is accommodated, while near the opposite ends of said two parallel arms they are each provided with a hole in coaxial alignment in order to accommodate the central portion of a further pin, by which the considered element is linked with the adjacent one, said pins being perpendicular with each other and carrying the wheels attached on both ends thereof adapted for engagement with the conveyor track.
  • the bush or bushing is secured to the knee by welding.
  • two centrally apertured plates are provided for securing said bushing to said knee, said plates lying parallel with each other in corresponding stepped-down or recessed edge portions of the knee, thereby to form sidewalls at both knee ends, the bushing ends are accommodated in the central openings of said plates.
  • the tie rods by which the load is hooked are formed integrally with the corresponding pairs of plates wherein the bushes are fitted.
  • Each pin by which a U-shaped rigid element is linked with the adjacent ones is forced into the coaxially aligned holes that are formed near the ends of the parallel arms of said element.
  • each pin The wheels as titted on opposite ends of each pin are of the ball bearing type and show a hub locked on the related pin end, while the crown rolls along the track and turns simultaneously around the pin.
  • Each pin shows two cylindric side portions, whereon the hubs of ball bearing wheels are firmly secured, and a middle cylindric portion that is designed to cooperate with the related bushing the diameter of said middle portion being greater than that of side portions.
  • said ends are suitably recessed in such a manner that, after the hubs have been forced thereon, they can be pierced and then riveted onto the related portions of hub seats.
  • FIG. I is a side view of a length of an articulated wheeled chain for industrial conveyors according to the invention, running in the related track.
  • FIG. 2 is an enlarged side elevational view of a link of said chain.
  • FIG. 3 is a cross-sectional view, taken on a horizontal linking pin, of the chain within the track having a spider cross section.
  • FIG. 4 is a perspective side view of a first embodiment form of a rigid chain link.
  • FIG. 5 is an exploded perspective view of a further embodiment form of a rigid chain link.
  • FIG. 6 is a perspective view of a rigid chain link, having the tie rod for the load-engaging hook pivotally connected therewith.
  • A is an articulated wheeled chain for industrial conveyors, which is kept running by suitable driving means (not shown) along a track B having the required layout.
  • Said track advantageously shows a spider cross section (see FIG. 3); however, it might show also a different cross-sectional shape, e.g. a square cross section.
  • the chain A consists of a plurality of similar rigid elements C, that are linked together by suitably shaped horizontal pins D and vertical pins F, in such a manner as to have uprightarranged rigid elements C alternated with flat-arranged rigid elements C, and similarily horizontal pins alternated with vertical pins.
  • Each rigid element C consists of a suitably sheared and shaped steel plate, which central area is bent arcuately at an angle of forming a U-shape knee G, wherefrom two parallely spaced arms 10-12 extend.
  • a bush 14 is placed in the knee G and is secured thereto by a welding action performed along the lines 16-18, as shown in FIG. 4, the bush axis being perpendicular to center plane comprising the middle lines X)( and Y-Y of arms ltl--l2.
  • the holes 24-46 are coaxially formed near the ends 20-22 of said arms for the purposes which will be explained later on.
  • the knee G of said element C is stepped down or recessed, starting from the points 28-30, by removing the related edge portions, thus said element C being tapered toward its knee.
  • said elements C considering e.g. the upright located element C1 in FIG. 2, as well as the adjacent rigid elements C2 and C3, it can be noticed that the knee GI is inserted between the opposite ends 20-22 of the element C2.
  • the holes 2d-26 of the element C2 are placed in coaxial relation with the bush fitted in the knee G1, whereby the pin F, which is clamped in said holes 24-26 with its larger diameter middle section, extends through the bush of the element Cl, thus linking the elements Cl and C2 together and allowing a relative rotary motion thereof around the axis of said pin.
  • a further pin D which is clamped in the related holes 24l-26 and lies perpendicular to previously stated pin by which the elements Cl and C2 are linked together.
  • Such second pin D extends through the bush that is fitted in the knee G3 of element C3, thus linking the elements Cl and C3 together and allowing a relative rotary motion thereof around the axis of related pin D.
  • Each one of the previously stated pins comprises a central cylindric portion 32, that is designed to cooperate with a related bush M, secured to knee G of the rigid element C, being both ends of said portion 32 clamped in the holes 24% -26.
  • the hole 24 is formed with flat sides 1% adapted to cooperate with complementarily flattened facets of said central pin portion, whereby preventing any rotation of considered pin in respect of related rigid element.
  • Outer cylindric portions 36 and 38 extend from either ends of said central cylindric pin portion 32, being said outer portions symmetrical about said central portion 32 and showing equal diameters that are smaller than that of said central portion.
  • pin portions 36-38 are formed with suitable recesses 52-54 whereby, after the hubs 4042 have been threaded thereon, said recesses can be punched and then rivetted in order to force the edges 5658 against the related portions of hub seats, thereby ensuring that no shifting of hubs can occur relative to the end sections 36-38.
  • the previously described portion of articulated chain is fitted in the track 8 in such a manner that the wheels 4446 act as bearing wheels, while the wheels 44' and 46' act as guide wheels.
  • H is the tie rod to which the load is hooked.
  • Said tie rod may be formed with a fork-shaped head 59, that is pivotally connected with the horizontal pin D.
  • a rod 60 extending from said head is formed with a hole 62 for hooking the load.
  • crowned guard discs 64 are fitted to wheels 44, 46 and 44, 46, to thereby cover the ball bearings as well as the rivetted ends of pin portions 36, 38.
  • FIG. shows another embodiment of a rigid element C, that differs from the previously described one as to the fitting of bush thereinto.
  • the element C consists of a metal plate or strip that is also bent at an angle of l80 and comprises a knee G, two parallel arms 10', 12 fonned with holes 24,26, as well as steppeddown portions 28, 30 formed on the knee edges; however, a bush 14 is retained in said knee G by means of plates 66, 68, which are located in said stepped-down portions 28, 30 respectively, thus forming parallel bearers by which the knee ends are defined.
  • Said plates 66,68 are fonned with holes 70, 72 respectively, which lie in coaxial relation with each other after the plates have been inserted into said stepped-down portions.
  • the bush 14 is then inserted into the knee and is fastened to said plates by having both its ends engaged into the holes 70,72 with the circular edge 74 of bush 14' being locked against the related surface of hole 70, while the edge 76 is locked with the related surface of hole 72.
  • the bush can be secured to the U-shaped member without any welding operation, as required according to the previously described embodiment form.
  • An exploded view of said rigid element C is shown in FIG. 5, thesingle components thereof being assembled in the above-described manner to form the rigid element C, wherein the bush is retained by means of said plates.
  • each pair of bearing wheel shows an axis of rotation which is coincident in any moment with the momentary axis of rotation as determined by the curvature radius of track; thus, the bearing wheels 36,38 are enabled to freely roll on the lower track wall without slipping thereon as occurs in conventional articulated chains in which the bearing wheels are located on either link ends and thus, clue to noncoincidence of said axes, as stated above, are caused to slip on the track. Accordingly, a sliding friction arises in addition to normal rolling friction, which results in a remarkable increase in the running resistance to be overcome by the chain and thus also results in an increased power consumption.
  • each rigid element which is obtained by merely shearing, bending and drilling a suitable metal plate.
  • a special feature can be viewed also in the location ofa bush in the knee of each U-shaped element, whereby a simple linking of the alternately upright and flat-arranged elements is performed.
  • An articulated wheeled chain for industrial track conveyors comprising a plurality of rigid elements, each element being linked with the two adjacent ones by means of pivot pins disposed perpendicular with one another and having their both ends fitted with track-engageable wheels of which the rotation planes are also perpendicular with one another, each rigid element formed being in the form of a strip metal plate of suitable thickness and bent generally U'sahpe at an angle of arcuately in its central area to receive a bushing, thereby forming a knee with two spaced parallel arms extending therefrom, a sleeve bushing disposed in said knee to accommodate a related central portion of a first pin by which the rigid element is linked together with an adjacent one, while the opposite ends of said two parallel arms are each provided with a hole in coaxial alignment with one another to accommodate a central portion of a second pivot pin, whereby each element is linked together with another adjacent one, said bushing connected to the knee by means of a pair of oppositely spaced, centrally apertured plates, each of which lies
  • tie rods adapted to attach a load are connected to and extend directly from each of the said pairs of plates engaging the respective bushes of each rigid element in the chain.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chain Conveyers (AREA)
US769228A 1968-01-31 1968-10-21 Articulated, wheeled chain for industrial conveyors Expired - Lifetime US3575282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1223068 1968-01-31

Publications (1)

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US3575282A true US3575282A (en) 1971-04-20

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US769228A Expired - Lifetime US3575282A (en) 1968-01-31 1968-10-21 Articulated, wheeled chain for industrial conveyors

Country Status (4)

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US (1) US3575282A (enrdf_load_stackoverflow)
DE (1) DE1802401B2 (enrdf_load_stackoverflow)
FR (1) FR1588022A (enrdf_load_stackoverflow)
GB (1) GB1236777A (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880276A (en) * 1973-07-09 1975-04-29 Iii George Howard Willett Conveyor chain
US4294345A (en) * 1975-07-28 1981-10-13 Ferag Ag Universal joint-link chain
US4907689A (en) * 1986-09-23 1990-03-13 Focke & Co., (Gmbh & Co.) Apparatus for transporting reels of packaging material in a packaging machine plant
US5076422A (en) * 1990-08-29 1991-12-31 Tekno Incorporated Side-flexing chain with wheels
DE4127194A1 (de) * 1991-08-15 1993-02-18 Mannesmann Ag Foerderanlage
US5302156A (en) * 1991-11-06 1994-04-12 Ferag Ag Chain drive
US5429227A (en) * 1993-07-19 1995-07-04 Korber Ag Chain conveyor
WO2001079085A1 (en) 2000-04-13 2001-10-25 Span Tech Llc Modular conveyor system with side flexing belt having roller support
US20080142336A1 (en) * 2004-02-02 2008-06-19 Krones Ag Device for Dynamic Storage of Objects
US20090200136A1 (en) * 2006-02-20 2009-08-13 Krones Ag Device for storing objects
WO2009128733A1 (en) * 2008-04-18 2009-10-22 Southchain Conveying Systems N.Z. Limited Chain link and chain
US20100044185A1 (en) * 2006-07-29 2010-02-25 Krones Ag Conveying Device
US20100314223A1 (en) * 2006-03-16 2010-12-16 Krones Ag Conveyance means
US7926642B2 (en) 2004-10-16 2011-04-19 Krones Ag Device for the buffering of objects
US20110108391A1 (en) * 2009-11-11 2011-05-12 Vemag Maschinenbau Gmbh Suspension Device for Sausage Chains
US8162127B2 (en) 2005-08-27 2012-04-24 Krones Ag Dynamic storage for objects
CN104192487A (zh) * 2014-08-28 2014-12-10 浙江神龙链传动有限公司 网带炉传输链的外挂装置
US20150042455A1 (en) * 2013-08-09 2015-02-12 Mobile Aspects, Inc. Signal Emitting Member Attachment System and Arrangement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492782A1 (fr) * 1980-10-27 1982-04-30 Nadella Convoyeurs a chaine sans fin
DE19817125A1 (de) 1998-04-17 1999-10-28 Interroll Holding Ag San Anton Transportkette
DE202005013775U1 (de) * 2005-09-01 2007-02-01 Hornung Gmbh Indupress & Co. Kg Einrichtung zur Behandlung von Kleidungsstücken

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1421178A (en) * 1920-07-28 1922-06-27 Davis Charles Clarance Chain
US2789685A (en) * 1954-02-05 1957-04-23 Fisher & Ludlow Ltd Flexible chain conveyor
US2980236A (en) * 1957-10-15 1961-04-18 King Donald Mayer Chains for conveyors
GB939732A (en) * 1960-03-04 1963-10-16 Morris Ltd Herbert Improvements in conveyors
US3225901A (en) * 1964-09-30 1965-12-28 Dahlman Mfg & Sales Inc Draper chain structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1421178A (en) * 1920-07-28 1922-06-27 Davis Charles Clarance Chain
US2789685A (en) * 1954-02-05 1957-04-23 Fisher & Ludlow Ltd Flexible chain conveyor
US2980236A (en) * 1957-10-15 1961-04-18 King Donald Mayer Chains for conveyors
GB939732A (en) * 1960-03-04 1963-10-16 Morris Ltd Herbert Improvements in conveyors
US3225901A (en) * 1964-09-30 1965-12-28 Dahlman Mfg & Sales Inc Draper chain structure

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880276A (en) * 1973-07-09 1975-04-29 Iii George Howard Willett Conveyor chain
US4294345A (en) * 1975-07-28 1981-10-13 Ferag Ag Universal joint-link chain
DK154702B (da) * 1975-07-28 1988-12-12 Ferag Ag Kaedetransportoer
US4907689A (en) * 1986-09-23 1990-03-13 Focke & Co., (Gmbh & Co.) Apparatus for transporting reels of packaging material in a packaging machine plant
US5076422A (en) * 1990-08-29 1991-12-31 Tekno Incorporated Side-flexing chain with wheels
DE4127194A1 (de) * 1991-08-15 1993-02-18 Mannesmann Ag Foerderanlage
US5302156A (en) * 1991-11-06 1994-04-12 Ferag Ag Chain drive
US5429227A (en) * 1993-07-19 1995-07-04 Korber Ag Chain conveyor
WO2001079085A1 (en) 2000-04-13 2001-10-25 Span Tech Llc Modular conveyor system with side flexing belt having roller support
US6364095B1 (en) 2000-04-13 2002-04-02 Span Tech Llc Modular conveyor system with side flexing belt having roller support
US6585110B2 (en) * 2000-04-13 2003-07-01 Span Tech Llc Modular conveyor system with side flexing belt having roller support
US20080142336A1 (en) * 2004-02-02 2008-06-19 Krones Ag Device for Dynamic Storage of Objects
US7810629B2 (en) * 2004-02-02 2010-10-12 Krones Ag Device for dynamic storage of objects
US7926642B2 (en) 2004-10-16 2011-04-19 Krones Ag Device for the buffering of objects
US8162127B2 (en) 2005-08-27 2012-04-24 Krones Ag Dynamic storage for objects
US20090200136A1 (en) * 2006-02-20 2009-08-13 Krones Ag Device for storing objects
US8028820B2 (en) 2006-02-20 2011-10-04 Krones Ag Device for storing objects
US8162129B2 (en) 2006-03-16 2012-04-24 Krones Ag Conveyance means
US20100314223A1 (en) * 2006-03-16 2010-12-16 Krones Ag Conveyance means
US20100044185A1 (en) * 2006-07-29 2010-02-25 Krones Ag Conveying Device
US8028815B2 (en) 2006-07-29 2011-10-04 Krones Ag Conveying device
US20110067980A1 (en) * 2008-04-18 2011-03-24 Shanon Matthew Martin Chain Link and Chain
WO2009128733A1 (en) * 2008-04-18 2009-10-22 Southchain Conveying Systems N.Z. Limited Chain link and chain
US20110108391A1 (en) * 2009-11-11 2011-05-12 Vemag Maschinenbau Gmbh Suspension Device for Sausage Chains
US8342318B2 (en) * 2009-11-11 2013-01-01 Vemag Maschinenbau Gmbh Suspension device for sausage chains
US20150042455A1 (en) * 2013-08-09 2015-02-12 Mobile Aspects, Inc. Signal Emitting Member Attachment System and Arrangement
US9892618B2 (en) * 2013-08-09 2018-02-13 Mobile Aspects, Inc. Signal emitting member attachment system and arrangement
CN104192487A (zh) * 2014-08-28 2014-12-10 浙江神龙链传动有限公司 网带炉传输链的外挂装置

Also Published As

Publication number Publication date
GB1236777A (en) 1971-06-23
DE1802401A1 (de) 1969-11-27
FR1588022A (enrdf_load_stackoverflow) 1970-04-03
DE1802401B2 (de) 1971-09-09

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