WO2001055011A1 - Chaine gainee destinee a un transporteur - Google Patents

Chaine gainee destinee a un transporteur Download PDF

Info

Publication number
WO2001055011A1
WO2001055011A1 PCT/US2000/002178 US0002178W WO0155011A1 WO 2001055011 A1 WO2001055011 A1 WO 2001055011A1 US 0002178 W US0002178 W US 0002178W WO 0155011 A1 WO0155011 A1 WO 0155011A1
Authority
WO
WIPO (PCT)
Prior art keywords
chain
pad
pads
roller chain
inside face
Prior art date
Application number
PCT/US2000/002178
Other languages
English (en)
Inventor
David Stevens
Original Assignee
Stevens Design & Fabrication, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stevens Design & Fabrication, Inc. filed Critical Stevens Design & Fabrication, Inc.
Priority to CA002398470A priority Critical patent/CA2398470A1/fr
Priority to AU2000233521A priority patent/AU2000233521A1/en
Priority to PCT/US2000/002178 priority patent/WO2001055011A1/fr
Priority to MXPA02007280A priority patent/MXPA02007280A/es
Priority to US09/617,665 priority patent/US6308823B1/en
Publication of WO2001055011A1 publication Critical patent/WO2001055011A1/fr

Links

Classifications

    • 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
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
    • B65G47/261—Accumulating articles
    • B65G47/268—Accumulating articles by means of belt or chain conveyor
    • 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
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/06—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
    • B65G17/065—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the load carrying surface being formed by plates or platforms attached to a single traction element
    • 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
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
    • 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
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles

Definitions

  • This invention relates to conveyors and drive mechanisms for conveyors, and more particularly to a padded chain for conveying articles or driving rollers in a conveying system such as an accumulation conveyor.
  • FIGS. 1 and 2 An example of this construction is shown in FIGS. 1 and 2, illustrating a padded conveyor drive chain 60 manufactured by Rapid Industries.
  • the drive chain 60 comprises a plurality of interconnected conventional links 62.
  • An elastomeric pad 64 is mounted on each side of the chain 60 on consecutive links 62 by pins 66 extending laterally through the links 62, securing the pads 64 by an external link-shaped washer 68.
  • Each pad 64 is roughly trapezoidal shaped, thereby enabling the chain 60 to wrap in both directions.
  • a padded chain according to the invention is particularly suited to function as a propelling member for articles or for another conveyor, and finds application especially practical for accumulation conveyors.
  • the propelling member typically comprises a roller chain of the type having pins extending laterally therefrom.
  • a plurality of high friction pads is secured to the laterally extending pins.
  • Each pad has an elongated upper surface, longer than the distance between two adjacent pins, and a cutout portion at each end of the pad.
  • Each cutout portion defines an inside face that overlaps the inside face of an adjacent pad so that the roller chain can be reverse-wrapped around a sprocket, and the upper surface will maintain a substantially continuous contact surface regardless of the direction of wrap.
  • FIG. 1 depicts a prior art padded chain
  • FIG. 2 is a cross-sectional view through line 2-2 of the padded chain of FIG. 1;
  • FIG. 3 is a side view of a padded conveyor chain according to the invention;
  • FIG. 4 is a plan view of the padded conveyor chain of FIG. 3;
  • FIG. 5 is a cross-sectional view taken through line 5-5 of FIG. 4;
  • FIG. 6 is a cross-sectional view taken through line 6-6 of FIG. 5;
  • FIG. 7 is a cross-sectional view taken through line 7-7 of FIG. 6;
  • FIG. 8 is an enlarged side view of a chain pad of the padded conveyor chain of FIGS. 3-7;
  • FIG. 9 is an enlarged plan view of a chain pad of the padded conveyor chain of FIGS. 3-8;
  • FIG. 10 is an enlarged side view of two interacting chain pads of the padded conveyor chain of FIGS . 3-11;
  • FIG. 11 is an enlarged side view of an alternative embodiment of a chain pad of the padded conveyor chain allowing even tighter reverse wrapping according to the invention
  • FIG. 12 is a partial side view of a padded chain according to the invention wrapping around a sprocket.
  • FIG. 13 is a partial side view of a padded chain according to the invention reverse wrapping around a sprocket.
  • FIGS. 14-16 depict the environment of driven conveyor systems that are enabled by the present invention.
  • a padded drive chain 90 comprising a steel chain 100 to which are affixed a plurality of chain pads 200.
  • the steel chain 100 is conventional in that it comprises of a number of pairs of inner links 110, each link pair being joined by a pair of sleeves 116 and each pair of inner links 110 being connected to an adjacent pair of inner links 110 by a pair of outer links 120 with hollow rollers 126 extending through the sleeves 116 to conjoin the pairs of outer links 120.
  • each pair of inner links 110 is free to rotate in two directions relative to the joined pair of outer links 120.
  • Chain pads 200 are adapted to be mounted to the outer links 120.
  • An elongated pin 132 sized to rotatably mount within each hollow roller 126, extends through each roller 126 on both sides of the chain 100.
  • two pins 132 are connected to each other in a parallel relationship by a fixed pin connector or fixed side link 134.
  • the fixed pin connector 134 is, but need not be, shaped congruently with the outer link 120 with which it is parallel.
  • the connector 134 is secured to the pins 132 by any well known fastening relationship, e.g., riveting the ends of the pins.
  • a chain pad 200 is mounted to the pins between the fixed pin connector 134 and the outer link 120 on one side of the chain 100.
  • each pin 132 opposite the fixed pin connector 134 comprises an annular groove 133.
  • a removable pin connector or removable side link 136 typically shaped congruently relative to a fixed pin connector 134 or an outer link 120, is received over the pins 132 and retained thereon by a spring clip or snap washer 138 adapted to clip onto the pins 132 in cooperation with the annular grooves 133.
  • Another chain pad 200 is mounted to the pins 32 between the removable pin connector 136 and the outer link 120 on the other side of the chain 100. Referring now in particular to FIGS . 8 - 10, the chain pad 200 is generally trapezoidal in side view, having a generally flat top surface 210, a generally flat bottom surface 220, and two truncated ends 230.
  • the chain pad has an inside face 240 and an outside face 250 substantially parallel to each other.
  • the inside and outside faces 240, 250 are substantially identical mirror images of each other.
  • the chain pad 200 has a pair of apertures 260 passing therethrough, each of the apertures 260 opening to the inside face 240 and further comprising an annular recess 262 around it.
  • the recess 262 accommodates any lip on the rollers 124 to which the outer links 120 are connected so that the inside surface 240 of the chain pad 200 can fully abut the adjacent outer link 120 when it is mounted on the pin 132.
  • Each of the inside and outside faces 240, 250 have at one end thereof a cutout 270 forming a sloped shoulder 275 and a side face 277.
  • Each side face 277 is substantially parallel with the opposite respective inside or outside face 240, 250. It will be apparent in FIG. 10 that adjacent chain pads 200 overlap where side faces 277 on adjacent pads actually face each other. hi other words, the cutouts 270 provide a space whereby corresponding ends 230 of adjacent chain pads 200 can nest in close relationship with each other, yet the top surface 210 remains essentially contiguous along the length of the chain.
  • Each of the projecting ends 230 of the chain pad 200 preferably has a chamfered edge 280 between the end 230 and the side face 277 in order to minimize any tendency for adjacent ands to abut as the chain 100 wraps around a sprocket as explained more fully below.
  • FIG. 11 An alternative embodiment of the chain pad according to the invention is disclosed in FIG. 11, wherein a chain pad 300 has a generally concave cutout 370 rather than the straight cutout 270 of the first embodiment.
  • the resulting shoulder 375 is arcuate, and preferably, the end wall 330 is also curved rather than being truncated in order to better nest within an adjacent cutout 370.
  • a curved top edge 390 is also provided at each end of the pad 300.
  • the principal benefit of this embodiments is that a tighter reverse wrap can be obtained as explained below, while still maintaining a substantially contiguous top surface 310.
  • the steel chain 100 will generally come as a pre-assembled unit. To this assembled steel chain 100 will be attached the chain pads 200.
  • the assembly comprising a pair of pins 132 and the fixed pin connector (fixed side link) 134 receive a chain pad 200 with the outside face 250 of the chain pad abutting the side link 134 and the pins extending from the inside face 240.
  • the pins 132 are then inserted into two adjacent hollow rollers 126 connecting the outer links 120 until the inside face 240 of the chain pad 200 abuts the outer link 120. Any lip of the hollow roller 126 extending beyond the outer link 120 nests within the annular recess 262 surrounding the aperture 260 on the inside face 240 of the chain pad 200.
  • a second chain pad 200 is then placed over the protruding pins 132 until any raised lip of the opposing hollow roller 126 nests in the annular recess 262 surrounding the respective apertures 260 on the inside face 240 of the second chain pad 200 and the inside face 240 fully abuts the second outer link 120.
  • the removable pin connector (removable side link) 136 is then placed over the pins 132 to abut the second chain pad 200 and is retained in place by a spring clip 138 which cooperates with the annular grooves 133 proximate the ends of the pins 132.
  • the process is repeated as a pair of chain pads 200 is attached to each of the outer links 120 of the steel chain 100.
  • the top surfaces 210 of this plurality of chain pads 200 forms a continuous surface for conveying articles or for driving the rollers of a conveyor.
  • FIG. 12 schematically depicts the conformance of the padded chain 90 about a sprocket 400.
  • the pads enable a substantially contiguous top surface 210 as the chain 100 approaches the sprocket 400.
  • the chain pads 200 will naturally rotate with the chain 100, allowing the chain to normally wrap around the sprocket 400.
  • the end 230 of each chain pad 200 tends to move away from the facing shoulder 275 of the adjacent cutout 270, and in fact, the facing side faces 277 may actually separate.
  • FIG. 13 shows the padded chain 90 with the second embodiment of the chain pads, 300 reverse-wrapped around the sprocket 400.
  • the cut outs, 370 allow the chain pads 300 to nest within each other.
  • the padded chain 90 can thus be carried in a reverse wrap arrangement on the sprocket 400.
  • FIGS. 14, 15 and 16 depict different arrangements of chain driven roller conveyors, including conveyors requiring a "reverse wrapped" drive chain, the environment in which reverse- wrapping chains is found to be beneficial.
  • FIG. 14 shows an end-drive-type drive mechanism for a conveyor 10.
  • a drive motor 30 through a drive belt 35 rotates a drive sprocket 20 located at an end of the conveyor 10, the drive sprocket 20 driving a padded chain 60 which, by frictional contact, drives rollers on the conveyor 10.
  • An end sprocket 25 secures the run of chain 60 opposite the drive sprocket 20.
  • FIGS. 15 and 16 depicting conveyers 12, 14, respectively, the drive sprocket 20 is located intermediate the ends of the conveyor 12, 14.
  • Chain take-up rollers 40 are arranged with the drive sprocket 20 to maintain tension on the chain 60.
  • Two end sprockets 25 define the end of chain travel. As can be clearly seen in FIGS.
  • the chain 60 must be capable of wrapping around the take up rollers 40 and the drive sprocket 20 in opposing directions.
  • Advantages of the arrangements in FIGS. 2 and 3 include the ability to reverse direction of the conveyor, use less space for the drive mechanism, and enable floor level conveyor systems.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chain Conveyers (AREA)

Abstract

L'invention concerne une chaîne gainée destinée à être utilisée dans un transporteur accumulateur. Cette chaîne forme une surface supérieure continue (210) en vue de fournir un contact avec les rouleaux du transporteur. Des gaines (200) sont fixées sur la chaîne (100), chacune étant pourvues d'une découpe lui permettant de chevaucher les gaines adjacentes et de se loger avec celles-ci (200), permettant ainsi une utilisation des gaines (200) et de la chaîne (100) dans des systèmes nécessitant un enroulement inverse de la chaîne autour d'un pignon ou d'un rouleau tel qu'un rouleau tendeur de chaîne.
PCT/US2000/002178 2000-01-28 2000-01-28 Chaine gainee destinee a un transporteur WO2001055011A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002398470A CA2398470A1 (fr) 2000-01-28 2000-01-28 Chaine gainee destinee a un transporteur
AU2000233521A AU2000233521A1 (en) 2000-01-28 2000-01-28 Padded chain for a conveyor
PCT/US2000/002178 WO2001055011A1 (fr) 2000-01-28 2000-01-28 Chaine gainee destinee a un transporteur
MXPA02007280A MXPA02007280A (es) 2000-01-28 2000-01-28 Cadena acojinada para un transportador.
US09/617,665 US6308823B1 (en) 2000-01-28 2000-07-17 Padded chain for a conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/002178 WO2001055011A1 (fr) 2000-01-28 2000-01-28 Chaine gainee destinee a un transporteur

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/617,665 Continuation US6308823B1 (en) 2000-01-28 2000-07-17 Padded chain for a conveyor

Publications (1)

Publication Number Publication Date
WO2001055011A1 true WO2001055011A1 (fr) 2001-08-02

Family

ID=21741006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/002178 WO2001055011A1 (fr) 2000-01-28 2000-01-28 Chaine gainee destinee a un transporteur

Country Status (4)

Country Link
AU (1) AU2000233521A1 (fr)
CA (1) CA2398470A1 (fr)
MX (1) MXPA02007280A (fr)
WO (1) WO2001055011A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101934917A (zh) * 2010-08-05 2011-01-05 张孝康 焊条输送链
EP2877413A1 (fr) * 2012-07-25 2015-06-03 Laitram, L.L.C. Courroie transporteuse modulaire dotée de nervures surélevées étendues

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050323A (en) * 1976-01-12 1977-09-27 Anson Thomas I Pintle-type industrial conveyor chain
US4643297A (en) * 1984-04-13 1987-02-17 Robert Bosch Gmbh Platform conveyor
US5065860A (en) * 1990-04-12 1991-11-19 Faulkner William G Connectors for woven conveyor belts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050323A (en) * 1976-01-12 1977-09-27 Anson Thomas I Pintle-type industrial conveyor chain
US4643297A (en) * 1984-04-13 1987-02-17 Robert Bosch Gmbh Platform conveyor
US5065860A (en) * 1990-04-12 1991-11-19 Faulkner William G Connectors for woven conveyor belts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101934917A (zh) * 2010-08-05 2011-01-05 张孝康 焊条输送链
EP2877413A1 (fr) * 2012-07-25 2015-06-03 Laitram, L.L.C. Courroie transporteuse modulaire dotée de nervures surélevées étendues
EP2877413A4 (fr) * 2012-07-25 2016-05-04 Laitram Llc Courroie transporteuse modulaire dotée de nervures surélevées étendues

Also Published As

Publication number Publication date
MXPA02007280A (es) 2002-12-09
AU2000233521A1 (en) 2001-08-07
CA2398470A1 (fr) 2001-08-02

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