CA1092541A - Conveyor belt - Google Patents

Conveyor belt

Info

Publication number
CA1092541A
CA1092541A CA306,010A CA306010A CA1092541A CA 1092541 A CA1092541 A CA 1092541A CA 306010 A CA306010 A CA 306010A CA 1092541 A CA1092541 A CA 1092541A
Authority
CA
Canada
Prior art keywords
cables
belt
spaced
marginal zones
substantially planar
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA306,010A
Other languages
French (fr)
Inventor
Lewis L. Ludwig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodrich Corp
Original Assignee
BF Goodrich Corp
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 BF Goodrich Corp filed Critical BF Goodrich Corp
Application granted granted Critical
Publication of CA1092541A publication Critical patent/CA1092541A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00Layered products comprising a layer of natural or synthetic rubber
    • B32B25/02Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024Woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/10Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer reinforced with filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/12Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30Belts or like endless load-carriers
    • B65G15/32Belts or like endless load-carriers made of rubber or plastics
    • B65G15/34Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric
    • B65G15/36Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric the layers incorporating ropes, chains, or rolled steel sections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2433/00Closed loop articles
    • B32B2433/02Conveyor belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04Bulk

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Belt Conveyors (AREA)

Abstract

CONVEYOR BELT
ABSTRACT

A conveyor belt composed of elastomeric material reinforced at least in part by transversely spaced, longitudinally extending, parallel cables of high modulus material designed to provide variable spacing of cables widthwise of the belt. Specifically, the edge or marginal zones of the belt each contain a series of more closely spaced cables than the portion of the belt between the margins. The belt may be further reinforced with one or more layers of fabric material.

Description

~092S41 The invention relates to conveyor type belt con-structions and particularly to such belt constructions which employ reinforcement such as cables of steel or other high strength material.
Much of todays conveyor belting is constructed of rubber reinforced by various te~tiles, glass and/or metal.
The type of reinforcement used as well as its arrangement within the belt is often dictated by the particular use to which the belting is put. selting destined for heavy conveying installations, such as mining, is often reinforced by metal, usually in the form of steel cables.
Generally, this cable type reinforcement in belts comprises a plurality of transversely spaced longitudinally extending, substantially mutually parallel steel cords or cables embedded within the elastomeric body of the belts. Steel cable reinforced belts of this type can include additional reinforce-ment layers adjacent the cable to couple some degree of lateral or transverse reinforcement with the longitudinal re-inforcement effected by the longitudinally extending cables.
Belt construction~ of this type are exemplified in U.S. Patent Nos. 3,221,869 ancl 3,144,930.
Cl~stomarily, it is desirable to design conveyor belting so that when carrying material, its contour adjusts to a trough or channel-like shape to protect against spillage of the conveyed material over the lateral edge of the belt. In steel cable reinforced belts of the type described above, this adjustment is sometimes difficult to achieve.
This invention provides a conveyor type elastomeric belt construction having substantially parallel upper and lower surfaces, and containing longitudinally extending cable rein-forcement spaced across the width of the belt while at the same time, having the capability of assuming a trough or channel-like - ' ~ '-~ ' iO9Z541 contour when in use.
Thus in accordance with the invention there is pro-vided in a conveyor type elastomeric belt having sub~tantially parallel upper and lower surfaces, reinforced by a substantially planar la~er of longitudinally extending, transversely spaced, substantially mutually parallel cables, and adapted to assume a trough-lik~e contour during use, the improvement wherein said cables are transversely spaced across the width of said belt such that A) a first selected plurality of equally spaced cables are disposed within each of two, transversely spaced marginal zones of the belt, B) a second selected plurality of equally spaced cables are disposed within the portion of the belt between said marginal zones, and C) the spacing between cables of said second plurality of cables is greater than the spacing between cables of said first plurality of cables.
Specifically, the belt construction according to the present invention includes an embedded, substantially planar layer of the substantially mutually parallel, longitudinally extending cables in transverse variably spaced groupings across the belt width. More specifically, within each of the marginal portions or zones of belt is a first plurality of transversely spaced longitudinally extending cables and within the portion of the belt between the margins is a second plurality of trans-versely spaced, longitudinally extending cables. The first ~ !~
and second pluralities of cables are spaced so that spacing between adjacent cables in each of the first pluralities of cables are less than the spacing between adjacent cables of the second plurality.
The invention is illustrated in a particular embodi-ment by reference to the accompanying drawings in which -~ .

,~. .
~ - 2 - ~

Fig. 1 is a plan view of a longitudinal segment of a conveyor helt constructed in accordance with the present invention with various portions cut away and shown in section~
and Fig. 2 is a transverse cross-sectional view of the belt shown in Fig~ 1 taken along lines 2-2 thereof.

,~
.~
;_ - 3 -'. ' `` ~ . ~' ,` ' 109254~

DESCRIPTION OF PRESENTLY
PREFERRED EMBODIMENTS
In the drawings, wherein like reference characters are used to refer to like elements, or portions, reference character 10 is used to generally refe~rence a conveyor belt made in accordance with the present invention. Belt 10, which is usually of the endless type is composed of a reinforced elastomeric body 12 of preselected width and thickness. The body 12 of belt 10 as shown in Figs. 1 and 2 comprises an elastomeric portion 14 of selected vulcanized rubber composition or compositions and upper, middle ~ and lower reinforcing layers 20, 22, 24, respectively.
; Upper and lower reinforcement layers 20 and 24 are shown to be of identical construction and each comprise a sheet of square woven fabric 21 and 23 which usually extend longitudinally of the belt throughout its endless length and, as shown, extend substantially the entire width of the belt. The upper and lower reinforcement layers 20 and 24 are for lending lateral stability and integrity to the belt and may be composed of common fabric materials of natural or synthetic textile or of fine wire, i~ desired.
These lateral reinforcements may comprise other than square woven fabric sheets and can, if desired, be actually omitted.
The middle reinforcement layer 22 lends longitudinal strength to the belt structure and ~-comprises laterally spaced, mutually parallel, cords ' -... , . ~

or cables 30 of high modulus material which extend longitudinally within the elastomeric portion 14 and are disposed in a substantially planar layer between layers 20 and 24. It is preferred that the cords or cables 30 are steel. However, it is under-stood that other high modulus cord or cable material could be used such as glass or "Kevlar", the latter ~.
a high modulus material presently marketed by ~uPont.
To more easily describe the features of the present invention, the width of belt body 12 is shown divisable in three (3) portions or zones, two (2) equal width marginal portions A and a remaining portion B between marginal portions A. According to the present invention, the marginal portions A of belt lO each contain a first plurality 32 of cables 30 disposed so that they are more closely spaced than a second plur-ality 34 of cables 30 disposed in portion B between marginal portions A. Arranging the cables 30 in this manner permits the belt lO when carrying material, to assume a trough -like contour generally throughout widthwise portion or zone B.
It is preferred that marginal portions A
containing the more closely spaced first pluralities 32 of cables 30 are of e~ual widthwise dimension for the sake of structural balance and uniformity. It has been found that in most belt width size ranges, marginal portions such as A, containing the more closely spaced cables are satisfactory when they are between 7 in.
(17.78 cm) to 9 in. (22.86 cm) wide. Belts constructed in this manner have been found particularly useful rade ~aY~ ~5~

- ' :

,, in conveyor systems where the belts are driven at the edges or margins.
The foregoing describes the present invention pursuant to a presently preferred form with the under-standing the departures from and modifications to that form are considered within the scope of the present invention as measured by the following claims.

';

. , .
~' ,

Claims (4)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:-
1. In a conveyor type elastomeric belt having sub-stantially parallel upper and lower surfaces, reinforced by a substantially planar layer of longitudinally extending, trans-versely spaced, substantially mutually parallel cables, and adapted to assume a trough-like contour during use, the improve-ment wherein said cables are transversely spaced across the width of said belt such that A) a first selected plurality of equally spaced cables are disposed within each of two, transversely spaced marginal zones of the belt, B) a second selected plurality of equally spaced cables are disposed within the portion of the belt between said marginal zones, and C) the spacing between cables of said second plurality of cables is greater than the spacing between cables of said first plurality of cables.
2. The belt defined in claim 1, wherein said marginal zones are between about 7 inches to about 9 inches wide.
3. The belt defined in claim 1, wherein at least a portion of said substantially planar layer of cables is sand-wiched between a pair of substantially planar layers of fabric.
4. The belt defined in claim 3, wherein said marginal zones are between about 7 inches to about 9 inches wide.
CA306,010A 1977-07-25 1978-06-22 Conveyor belt Expired CA1092541A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81891177A 1977-07-25 1977-07-25
US818,911 1977-07-25

Publications (1)

Publication Number Publication Date
CA1092541A true CA1092541A (en) 1980-12-30

Family

ID=25226733

Family Applications (1)

Application Number Title Priority Date Filing Date
CA306,010A Expired CA1092541A (en) 1977-07-25 1978-06-22 Conveyor belt

Country Status (11)

Country Link
JP (1) JPS5425077A (en)
AU (1) AU3765378A (en)
BR (1) BR7804764A (en)
CA (1) CA1092541A (en)
DE (1) DE2831741A1 (en)
FR (1) FR2398678A1 (en)
GB (1) GB2001281B (en)
HU (1) HU178553B (en)
MX (1) MX146404A (en)
SE (1) SE7808010L (en)
YU (1) YU165078A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1166718B (en) * 1979-03-27 1987-05-06 Pirelli CONVEYOR BELT
AT380449B (en) * 1981-02-11 1986-05-26 Semperit Ag CONVEYOR BELT FOR HEAVY DUTIES
JPS6180708U (en) * 1984-10-30 1986-05-29
HU221145B1 (en) * 1996-03-06 2002-08-28 Phoenix Ag Conveyor belt
DE19811411B4 (en) * 1998-03-17 2007-06-06 Phoenix Conveyor Belt Systems Gmbh conveyor belt
DE102011050936A1 (en) 2011-06-08 2012-12-13 ThyssenKrupp Fördertechnik GmbH Conveyor belt system and conveyor belt

Also Published As

Publication number Publication date
GB2001281A (en) 1979-01-31
MX146404A (en) 1982-06-23
DE2831741A1 (en) 1979-02-15
YU165078A (en) 1982-10-31
GB2001281B (en) 1982-01-27
JPS5425077A (en) 1979-02-24
AU3765378A (en) 1980-01-03
HU178553B (en) 1982-05-28
SE7808010L (en) 1979-01-26
FR2398678A1 (en) 1979-02-23
BR7804764A (en) 1979-04-03

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