CA1220681A - Metallic cable for reinforcing elastomeric articles - Google Patents
Metallic cable for reinforcing elastomeric articlesInfo
- Publication number
- CA1220681A CA1220681A CA000448672A CA448672A CA1220681A CA 1220681 A CA1220681 A CA 1220681A CA 000448672 A CA000448672 A CA 000448672A CA 448672 A CA448672 A CA 448672A CA 1220681 A CA1220681 A CA 1220681A
- Authority
- CA
- Canada
- Prior art keywords
- strand
- metallic cable
- filaments
- single filament
- filament
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 7
- 230000000704 physical effect Effects 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- ZXVONLUNISGICL-UHFFFAOYSA-N 4,6-dinitro-o-cresol Chemical compound CC1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O ZXVONLUNISGICL-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2023—Strands with core
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2024—Strands twisted
- D07B2201/2029—Open winding
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2059—Cores characterised by their structure comprising wires
Landscapes
- Ropes Or Cables (AREA)
- Tires In General (AREA)
Abstract
METALLIC CABLE FOR REINFORCING ELASTOMERIC ARTICLES
Abstract of the Disclosure A metallic cable (35) for reinforcing elastomeric articles comprises a single strand (39) of two filaments (36,37) twisted together in a first direction, and a single filament (38) helically disposed around the strand in a direction that is opposite to said first direction and has a pitch that is not greater than one and one-half times the lay length of said strand.
Abstract of the Disclosure A metallic cable (35) for reinforcing elastomeric articles comprises a single strand (39) of two filaments (36,37) twisted together in a first direction, and a single filament (38) helically disposed around the strand in a direction that is opposite to said first direction and has a pitch that is not greater than one and one-half times the lay length of said strand.
Description
~ ~2~
METALLIC CABLE FOR REINFORCING ELASTOMERIC ARTICLES
_ Background of the Inv ntion This invention relates generally to metallic cables, and particularly to metallic cables that are useful for reinforcing elastomeric articles.
There is provided in accordance with one aspect of the invention a metallic cable for reinforcing elastomeric articles comprislng: (a) a single strand of two filaments twisted together in a first direction;
and (b) a single filament helically disposed around said strand in a direction that is opposite to said first direction and has a pitch that is not greater than one and one~half times the lay length of said strand, said single filament having a diameter that is equal to or greater than the diameter of the filaments of said strand.
Brief Description of the Drawings The invention will be better understood by referring to the figures of the drawing, wherein:
Fig. 1 is a side elevation view of a cable made in accordance with one embodiment of the invention;
Figs. 2 to 10 are cross-sectional views taken along lines 2-2 to 10-10, respectively, of Fig. l;
Fig. 11 is a side elevation view of a cable made in accordance with another embodiment of the invention;
and Figs. 12 to 22 are cross-sectional views taken along lines 12-12 to 22-22, respectively, of Fig. 11.
Detailed Description of the Invention Referring first to Fig. 1, there is shown a side elevation view of a metallic cable 30 made in accordance with the preferred embodiment of the ~ ,~Z~
lA
invention. The cable 30 comprises (a) a single strand 34 of two filaments 31 and 32 twisted together in a irst direction9 and (b) a single filament 33 helically disposed around the strand 34 in a direction th~t is opposite to the direction of twist of the strand. The pitch of the helix formed by the single filament 33 is substantially the same as the lay length of the strand 34. Most preerably the helically disposed filamen~ 33 is shifted one-half of its pitch length with respect to the strand 34. The diameter of the single filament 33 is equal to or greater than the diameter of the filaments 31,32 of the strand 34.
'@~
~2~i~6~
As used herein, a "f;lament" refers to an individu~l metallic wire; a "strand" refers to a group of fi,laments combined together to form a lmit; and a l'cable" refers to a structure comprised of two or more strands, or a combination of at lea.st one strand with at least one filament.
Most prior art cables have wrap filaments whose main function is to keep the filaments of core strands in pl.ace, so that the contri.bution of the wrap filaments to the strength of the cable is minimal.
~,ahle made in accordance wi,th the preferred embodiment of the invention has a single filament helicallv disposed about a strand with substantially the same tensile strength and other physical properties as the filaments in the strand, a diameter that is equal to or larger than the diameter of the filaments of the strand, and a pitch len~th that is substantially the ~same ~s the la~7 length o:E the strand so that it is stressed at substantifllly the same level as the 20 filametlts of the strand. Therefore, the si.ngle filament that is hel.ically disposed about the strand of two filament to form a cable according to the invention makes a significant contribution to the strength of the cabl.e, that is substanti.ally the same as the strength contributed bv each filament of the strand.
Referring now to Fig. 11, there is shown a side elevntiona.l view of a metallic cable 35 made in accorclance with another embodiment of the invention.
The cable 35 shown in Fig. 11 is similar to the cable shown in Fig. ].~ and comprises: (a) a sin~le strand 39 of two filaments 36 ancl 37 twisted to~ether in a first direction; and (b) a sin~le filament 38 helicall~r disposed a~bun~ the strand 39 in a direction that is opposite to the direction of twist of the strand. In ~22~
this embodîme,nt, the pitch of the helix formed bv the single wrap 38 is substantially one and one-half (l-l/2) times the lay length of the strand 39. It is believed that the pitch of the helix formed by the single filament helical]v disposed around the slngle strand of a cable according to the invention should not be any ~reater than one and one-half (l-l/2) times the lay length of the strand so that the helically disposed filament will not be stressed at fl level that is excessively higher than the stress placed on the filaments of the ~strand due to the differentia]
between the pitch and lay l.engths.
As used herein, the direction of twist~ laY, or a heLix refers to the dlrecti.on of sl.ope of the spirals of a st,rand or :Filament when the cabl.e is held vertically. If the slope of the spirals conorm in direction to the slope of the letter "S", then the twist is called "S" or "left-hand". If the slope of the spirals con:Eorms to the slope of the letter "Z", then the twist i9 called "~" or "right-hand". "La~J
lengthl' is the axial distance required for a filament or strand to make one 360-degree revolution in a strand or cable. "Pitch length" ;~s the axial distance required for a helically disposed filament to rnake one 2S 360-degree revo1lltion.
It is helieved that an advantage of a cable made in accorclance with the invention i.s an increased resistance to the spread o~ corrosion because an elastomeric material may easily penetrate between the single helically dl.sposed filament and the ~ingle two filament strand.
Figs. 2 to lO are cross-sectional views taken along lines 2-2 to 10-lO, respectively of Fig. 1 and Figs. 12-22 are cross-sectional views taken along lines 12-12 to 22-22, respectively, of Fig. 11. The 4 3L~2~
open structure of cables made i.n accordance wi.th the invention, especially between the heli.cally disposed f~ilament and the strancl, may be seen in these cross-sectional views.
This thorough coating of the strand and the single helically dispo..ed filament with the e]astomer not only helps to restric~ the spread of corrosion but also cvntribute.s to the :Eilament's resi.stance to wear against one another, and restricts the amount of heat generated when the cable is ~subjected to bending loads. For example, these advantages may be realized by using the cable to reinforce an elastomeric article ~such as a pne.umatic tire or a belt.
~hile certain representative embodiments and detal.l.~s have been shown for the purpose o:E
il.lus~rat-ing the ;.nvention, lt wi.ll be apparent to those skilled -in the art that variou~s changes and modifications mav he ma~e th.erein without departin~
from the spirit or scope of the inventi.on.
,,
METALLIC CABLE FOR REINFORCING ELASTOMERIC ARTICLES
_ Background of the Inv ntion This invention relates generally to metallic cables, and particularly to metallic cables that are useful for reinforcing elastomeric articles.
There is provided in accordance with one aspect of the invention a metallic cable for reinforcing elastomeric articles comprislng: (a) a single strand of two filaments twisted together in a first direction;
and (b) a single filament helically disposed around said strand in a direction that is opposite to said first direction and has a pitch that is not greater than one and one~half times the lay length of said strand, said single filament having a diameter that is equal to or greater than the diameter of the filaments of said strand.
Brief Description of the Drawings The invention will be better understood by referring to the figures of the drawing, wherein:
Fig. 1 is a side elevation view of a cable made in accordance with one embodiment of the invention;
Figs. 2 to 10 are cross-sectional views taken along lines 2-2 to 10-10, respectively, of Fig. l;
Fig. 11 is a side elevation view of a cable made in accordance with another embodiment of the invention;
and Figs. 12 to 22 are cross-sectional views taken along lines 12-12 to 22-22, respectively, of Fig. 11.
Detailed Description of the Invention Referring first to Fig. 1, there is shown a side elevation view of a metallic cable 30 made in accordance with the preferred embodiment of the ~ ,~Z~
lA
invention. The cable 30 comprises (a) a single strand 34 of two filaments 31 and 32 twisted together in a irst direction9 and (b) a single filament 33 helically disposed around the strand 34 in a direction th~t is opposite to the direction of twist of the strand. The pitch of the helix formed by the single filament 33 is substantially the same as the lay length of the strand 34. Most preerably the helically disposed filamen~ 33 is shifted one-half of its pitch length with respect to the strand 34. The diameter of the single filament 33 is equal to or greater than the diameter of the filaments 31,32 of the strand 34.
'@~
~2~i~6~
As used herein, a "f;lament" refers to an individu~l metallic wire; a "strand" refers to a group of fi,laments combined together to form a lmit; and a l'cable" refers to a structure comprised of two or more strands, or a combination of at lea.st one strand with at least one filament.
Most prior art cables have wrap filaments whose main function is to keep the filaments of core strands in pl.ace, so that the contri.bution of the wrap filaments to the strength of the cable is minimal.
~,ahle made in accordance wi,th the preferred embodiment of the invention has a single filament helicallv disposed about a strand with substantially the same tensile strength and other physical properties as the filaments in the strand, a diameter that is equal to or larger than the diameter of the filaments of the strand, and a pitch len~th that is substantially the ~same ~s the la~7 length o:E the strand so that it is stressed at substantifllly the same level as the 20 filametlts of the strand. Therefore, the si.ngle filament that is hel.ically disposed about the strand of two filament to form a cable according to the invention makes a significant contribution to the strength of the cabl.e, that is substanti.ally the same as the strength contributed bv each filament of the strand.
Referring now to Fig. 11, there is shown a side elevntiona.l view of a metallic cable 35 made in accorclance with another embodiment of the invention.
The cable 35 shown in Fig. 11 is similar to the cable shown in Fig. ].~ and comprises: (a) a sin~le strand 39 of two filaments 36 ancl 37 twisted to~ether in a first direction; and (b) a sin~le filament 38 helicall~r disposed a~bun~ the strand 39 in a direction that is opposite to the direction of twist of the strand. In ~22~
this embodîme,nt, the pitch of the helix formed bv the single wrap 38 is substantially one and one-half (l-l/2) times the lay length of the strand 39. It is believed that the pitch of the helix formed by the single filament helical]v disposed around the slngle strand of a cable according to the invention should not be any ~reater than one and one-half (l-l/2) times the lay length of the strand so that the helically disposed filament will not be stressed at fl level that is excessively higher than the stress placed on the filaments of the ~strand due to the differentia]
between the pitch and lay l.engths.
As used herein, the direction of twist~ laY, or a heLix refers to the dlrecti.on of sl.ope of the spirals of a st,rand or :Filament when the cabl.e is held vertically. If the slope of the spirals conorm in direction to the slope of the letter "S", then the twist is called "S" or "left-hand". If the slope of the spirals con:Eorms to the slope of the letter "Z", then the twist i9 called "~" or "right-hand". "La~J
lengthl' is the axial distance required for a filament or strand to make one 360-degree revolution in a strand or cable. "Pitch length" ;~s the axial distance required for a helically disposed filament to rnake one 2S 360-degree revo1lltion.
It is helieved that an advantage of a cable made in accorclance with the invention i.s an increased resistance to the spread o~ corrosion because an elastomeric material may easily penetrate between the single helically dl.sposed filament and the ~ingle two filament strand.
Figs. 2 to lO are cross-sectional views taken along lines 2-2 to 10-lO, respectively of Fig. 1 and Figs. 12-22 are cross-sectional views taken along lines 12-12 to 22-22, respectively, of Fig. 11. The 4 3L~2~
open structure of cables made i.n accordance wi.th the invention, especially between the heli.cally disposed f~ilament and the strancl, may be seen in these cross-sectional views.
This thorough coating of the strand and the single helically dispo..ed filament with the e]astomer not only helps to restric~ the spread of corrosion but also cvntribute.s to the :Eilament's resi.stance to wear against one another, and restricts the amount of heat generated when the cable is ~subjected to bending loads. For example, these advantages may be realized by using the cable to reinforce an elastomeric article ~such as a pne.umatic tire or a belt.
~hile certain representative embodiments and detal.l.~s have been shown for the purpose o:E
il.lus~rat-ing the ;.nvention, lt wi.ll be apparent to those skilled -in the art that variou~s changes and modifications mav he ma~e th.erein without departin~
from the spirit or scope of the inventi.on.
,,
Claims (6)
1. A metallic cable for reinforcing elastomeric articles comprising:
(a) a single strand of two filaments twisted together in a first direction; and (b) a single filament helically disposed around said strand in a direction that is opposite to said first direction and has a pitch that is not greater than one and one-half times the lay length of said strand, said single filament having a diameter that is equal to or greater than the diameter of the filaments of said strand.
(a) a single strand of two filaments twisted together in a first direction; and (b) a single filament helically disposed around said strand in a direction that is opposite to said first direction and has a pitch that is not greater than one and one-half times the lay length of said strand, said single filament having a diameter that is equal to or greater than the diameter of the filaments of said strand.
2. A metallic cable as described in Claim 1, wherein the pitch of said single filament is substantially the same as the lay length of said strand.
3. A metallic cable as described in Claim 2, wherein said single filament is shifted one-half of its pitch length with respect to said strand.
4. A metallic cable as described in Claim 1, wherein said single filament has substantially the same physical properties as the filaments of said strand.
5. A metallic cable as described in Claim 2, wherein said single filament has substantially the same physical properties as the filaments of said strand.
6. A metallic cable as described in Claim 3, wherein said single filament has substantially the same physical properties as the filaments of said strand.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/474,399 US4464892A (en) | 1983-03-11 | 1983-03-11 | Metallic cable for reinforcing elastomeric articles |
| US474,399 | 1983-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1220681A true CA1220681A (en) | 1987-04-21 |
Family
ID=23883361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000448672A Expired CA1220681A (en) | 1983-03-11 | 1984-03-01 | Metallic cable for reinforcing elastomeric articles |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4464892A (en) |
| EP (1) | EP0120804B1 (en) |
| JP (1) | JPS59168198A (en) |
| BR (1) | BR8400868A (en) |
| CA (1) | CA1220681A (en) |
| DE (1) | DE3467380D1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580545A (en) * | 1984-02-29 | 1986-04-08 | Florida Wire And Cable Company | Stone sawing strand |
| US4566261A (en) * | 1984-09-14 | 1986-01-28 | The Goodyear Tire & Rubber Company | Metallic cable and apparatus for manufacturing the same |
| US4586324A (en) * | 1984-12-31 | 1986-05-06 | Tokyo Rope Mfg. Co., Ltd. | Metal cord for reinforcing rubber products |
| JPS6233841A (en) * | 1985-08-06 | 1987-02-13 | 東洋ゴム工業株式会社 | Steel cord, its production and steel cord reinforced car tire |
| JPS6342985A (en) * | 1986-08-08 | 1988-02-24 | 株式会社ブリヂストン | Metal cord |
| US4836262A (en) * | 1986-08-08 | 1989-06-06 | Bridgestone Corporation | Metal cords and pneumatic tires using the same |
| DE8707685U1 (en) * | 1987-05-29 | 1987-10-15 | Drahtcord Saar Gmbh & Co Kg, 6640 Merzig, De | |
| EP0342644B1 (en) * | 1988-05-20 | 1996-08-21 | TOYO TIRE & RUBBER CO., LTD . | Pneumatic tire |
| US5337549A (en) * | 1989-12-20 | 1994-08-16 | Tokusen Kogyo Company Limited | Steel cord for reinforcement of rubber products |
| EP0462716B1 (en) * | 1990-06-16 | 1995-06-28 | Tokusen Kogyo Company Limited | Steel cord for reinforcing rubber product |
| JPH0768673B2 (en) * | 1991-12-27 | 1995-07-26 | トクセン工業株式会社 | Steel cord for reinforcing rubber products |
| WO2013179384A1 (en) * | 2012-05-29 | 2013-12-05 | 株式会社東京ワイヤー製作所 | Wire saw |
| JP2019086603A (en) * | 2017-11-06 | 2019-06-06 | 有限会社小林眼鏡工業所 | Metal twisted wire and manufacturing method of the same |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2277145A (en) * | 1941-04-19 | 1942-03-24 | Nat Standard Co | Reinforcing cable |
| US2609653A (en) * | 1948-04-27 | 1952-09-09 | Preformed Line Products Co | Helically preformed elements on stranded line |
| NL69339C (en) * | 1948-12-27 | |||
| BE654920A (en) * | 1964-10-28 | 1965-02-15 | ||
| TR16885A (en) * | 1971-05-18 | 1973-09-01 | Pirelli | REINFORCEMENT IN METAL CONDONS FOR REINFORCEMENT ON RUBBER ITEMS |
| LU65329A1 (en) * | 1972-05-10 | 1973-11-22 | ||
| IT1059752B (en) * | 1975-05-12 | 1982-06-21 | Akzo Nv | REINFORCEMENT CABLE FOR ELASTOMERIC TICLES AND RELATED METHOD AND MANUFACTURING APPARATUS |
| FR2477584A1 (en) * | 1980-03-06 | 1981-09-11 | Sodetal Develop Fil Metallique | Cable of strands of metal wires - having spiral twist of the same direction and pitch |
| LU82707A1 (en) * | 1980-08-12 | 1982-05-10 | Arbed | SINGLE-LEADED WIRE ROPE SUITABLE FOR REINFORCING ELASTOMERIC PRODUCTS |
| NL191315C (en) * | 1981-05-08 | 1995-05-16 | Bekaert Sa Nv | Cable for reinforcing elastomeric material and method for manufacturing such a cable. |
-
1983
- 1983-03-11 US US06/474,399 patent/US4464892A/en not_active Expired - Fee Related
-
1984
- 1984-02-24 BR BR8400868A patent/BR8400868A/en not_active IP Right Cessation
- 1984-02-27 JP JP59034494A patent/JPS59168198A/en active Pending
- 1984-03-01 CA CA000448672A patent/CA1220681A/en not_active Expired
- 1984-03-06 DE DE8484630041T patent/DE3467380D1/en not_active Expired
- 1984-03-06 EP EP84630041A patent/EP0120804B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59168198A (en) | 1984-09-21 |
| EP0120804B1 (en) | 1987-11-11 |
| EP0120804A1 (en) | 1984-10-03 |
| BR8400868A (en) | 1984-10-16 |
| US4464892A (en) | 1984-08-14 |
| DE3467380D1 (en) | 1987-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |