CA1074681A - White sidewall tire and method of manufacture - Google Patents
White sidewall tire and method of manufactureInfo
- Publication number
- CA1074681A CA1074681A CA262,542A CA262542A CA1074681A CA 1074681 A CA1074681 A CA 1074681A CA 262542 A CA262542 A CA 262542A CA 1074681 A CA1074681 A CA 1074681A
- Authority
- CA
- Canada
- Prior art keywords
- tire
- sidewall
- strip
- mold
- margins
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/72—Side-walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
- B60C13/04—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof having annular inlays or covers, e.g. white sidewalls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/72—Side-walls
- B29D2030/726—Decorating or marking the sidewalls before tyre vulcanization
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Tyre Moulding (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Using a decor strip of white, or other contrasting, compound not greater than about 2 millimeters thickness, to ribs and an intervening annular groove lined with the strip are formed on a tire sidewall. The strip is cured integrally with the ribs and sidewall and in direct contact with the mold, without the customary over-lay of black rubber. The tire so formed has no white rubber beneath any black rubber in the tire. The quantity of white compound required is materially reduced.
Using a decor strip of white, or other contrasting, compound not greater than about 2 millimeters thickness, to ribs and an intervening annular groove lined with the strip are formed on a tire sidewall. The strip is cured integrally with the ribs and sidewall and in direct contact with the mold, without the customary over-lay of black rubber. The tire so formed has no white rubber beneath any black rubber in the tire. The quantity of white compound required is materially reduced.
Description
~017D~
The present invention relates to the manufacture of tires and particularly to the manufacture of a tire having a decor strip providing a tire of the type commonly known as a white sidewall tire.
S The objects of the invention are an improved white sidewall tire and a method of making such tire at less cost.
In accordance w.ith one aspect of this invention there is provided a tire having a white decor strip displayed cir-cumferentially on a sidewall, said tire comprising a pair of ribs formed integrally with said sidewall to extend circum-ferentially of the tire and outwardly of the sidewall to define an annular groove between the ribs, a strip formed solely of white rubber compound not greater than two milli-meters thick conforming to said groove and molded and cured therein integrally with the tire r said strip having circum-ferential edge portions extending outwardly in directio~s normal to the sidewall region and substantially thinner than the remainder of said strip and terminating outwardly of the bottom of said groove and flush with the outwardly exposed surfaces of the respective ribs, the mold contact surface of said one sidewall being absent only from the terminii of said edge portions and said surfaces, and wherein the surface of said strip is completely exposed and free of overlying black sidewall material, and wherein said rihs comprise only black sidewall material.
In accordance with another aspect of this inven-tion there is provided the method of ma~ing a tire having a white sidewall comp~is.ing disposing a thin strip ~f white rubber compound circumferentially about the ex-ternal surface of the sidewall region of the tire in its uncured state, placing the uncured tire in a tire curing mold with the thin strip 746~
, exposed to direct contact with the mold, in the mold displacing relatively of each other an intermediate portion of the width of the thin strip inwardly and respective margins of the width of the thin strip outwardly in direct-ions normal to the sidewall region to form in said stripbetween said intermediate portion and each of said margins a wall of substantially diminished thickness relative to said intermediate portion and extending normal to the side-wall region contour and circumferentially of said region, curing and removing the tire from the mold, and removing an outward portion of each wall.
In accordance with another aspect of this invention there is provided the method of making a tire having a white sidewall comprising disposing a thin strip of white rubber : 15 compound circumferentially about the external surface of the sidewall region of the tire in its uncured state, placing the uncured tire in a tire curing mold with the thin strip - iexposed to direct contact with the mold, in the mold dis-placing relatively of each other an intermediate portion of the width of the thin strip inwardly and respective margins of the width of the thin strip outwardly in directions normal to the sidewall region to form in said strip between said intermediate portion and each of said margins a wall of substantially diminished thickness relative to said inter-mediate portion extending normal to the sidewall regioncontour and circumferentially of said region, displacing portions of the tire sidewall underlying said margins con-currently with displacement of said margins thereby to stretch and thin each said wall and to form ribs carrying the respective margins outwardly with respect to the inter-mediate portion, and forming a flow stop ridge circumEeren-tially of the tire on the surface of at least one of said i 107468~L
ribs to inhibit mold flow of said margins outwardly alony the surface of the respective rib away from said groove, curing and removing the tire from the mold, and removing an outward portion of each wall.
To acquaint those skilled in the related arts more fully with the concept and practice of the invention, a preferred embodiment illustrating the best mode of implementation thereof will be described with reference to the attached drawings forming a part of this specifica-tion and in which drawings:
Fig. 1 is a partial view in axial cross-section, and in approximately full scale, of a tire in accordance with the invention;
Fig. 2 is a view of a portion of Fig. 1, enlarged in scale;
Fig. 3 and Fig. 4 are views schematically illustrating steps in the process of making the tire of Fig. 1.
A tire 10 in accordance with the invention and illustrated in Figs. 1 and 2 comprises, in the sidewall region 12 of the tire, a pair of ribs 14,16 which extend circumferentially of the tire and define there-between an annular groove 20 which has a strip 25 of -2a-~ 8~
white rubbsr compound overlylng the surfaces 27~28~29 of the groove and molded and cured therein integrally with the tire 10.
~ he arrangement provides two notable advantages.
~irst~ the white rubber strip is no more than about
The present invention relates to the manufacture of tires and particularly to the manufacture of a tire having a decor strip providing a tire of the type commonly known as a white sidewall tire.
S The objects of the invention are an improved white sidewall tire and a method of making such tire at less cost.
In accordance w.ith one aspect of this invention there is provided a tire having a white decor strip displayed cir-cumferentially on a sidewall, said tire comprising a pair of ribs formed integrally with said sidewall to extend circum-ferentially of the tire and outwardly of the sidewall to define an annular groove between the ribs, a strip formed solely of white rubber compound not greater than two milli-meters thick conforming to said groove and molded and cured therein integrally with the tire r said strip having circum-ferential edge portions extending outwardly in directio~s normal to the sidewall region and substantially thinner than the remainder of said strip and terminating outwardly of the bottom of said groove and flush with the outwardly exposed surfaces of the respective ribs, the mold contact surface of said one sidewall being absent only from the terminii of said edge portions and said surfaces, and wherein the surface of said strip is completely exposed and free of overlying black sidewall material, and wherein said rihs comprise only black sidewall material.
In accordance with another aspect of this inven-tion there is provided the method of ma~ing a tire having a white sidewall comp~is.ing disposing a thin strip ~f white rubber compound circumferentially about the ex-ternal surface of the sidewall region of the tire in its uncured state, placing the uncured tire in a tire curing mold with the thin strip 746~
, exposed to direct contact with the mold, in the mold displacing relatively of each other an intermediate portion of the width of the thin strip inwardly and respective margins of the width of the thin strip outwardly in direct-ions normal to the sidewall region to form in said stripbetween said intermediate portion and each of said margins a wall of substantially diminished thickness relative to said intermediate portion and extending normal to the side-wall region contour and circumferentially of said region, curing and removing the tire from the mold, and removing an outward portion of each wall.
In accordance with another aspect of this invention there is provided the method of making a tire having a white sidewall comprising disposing a thin strip of white rubber : 15 compound circumferentially about the external surface of the sidewall region of the tire in its uncured state, placing the uncured tire in a tire curing mold with the thin strip - iexposed to direct contact with the mold, in the mold dis-placing relatively of each other an intermediate portion of the width of the thin strip inwardly and respective margins of the width of the thin strip outwardly in directions normal to the sidewall region to form in said strip between said intermediate portion and each of said margins a wall of substantially diminished thickness relative to said inter-mediate portion extending normal to the sidewall regioncontour and circumferentially of said region, displacing portions of the tire sidewall underlying said margins con-currently with displacement of said margins thereby to stretch and thin each said wall and to form ribs carrying the respective margins outwardly with respect to the inter-mediate portion, and forming a flow stop ridge circumEeren-tially of the tire on the surface of at least one of said i 107468~L
ribs to inhibit mold flow of said margins outwardly alony the surface of the respective rib away from said groove, curing and removing the tire from the mold, and removing an outward portion of each wall.
To acquaint those skilled in the related arts more fully with the concept and practice of the invention, a preferred embodiment illustrating the best mode of implementation thereof will be described with reference to the attached drawings forming a part of this specifica-tion and in which drawings:
Fig. 1 is a partial view in axial cross-section, and in approximately full scale, of a tire in accordance with the invention;
Fig. 2 is a view of a portion of Fig. 1, enlarged in scale;
Fig. 3 and Fig. 4 are views schematically illustrating steps in the process of making the tire of Fig. 1.
A tire 10 in accordance with the invention and illustrated in Figs. 1 and 2 comprises, in the sidewall region 12 of the tire, a pair of ribs 14,16 which extend circumferentially of the tire and define there-between an annular groove 20 which has a strip 25 of -2a-~ 8~
white rubbsr compound overlylng the surfaces 27~28~29 of the groove and molded and cured therein integrally with the tire 10.
~ he arrangement provides two notable advantages.
~irst~ the white rubber strip is no more than about
2 millimeters in thickness9 thereby minlmizing the quan~ity o~ white rubber compound requir~d to provide a decorative white sidewallO Secondly~ the respectiva ribs 1~16 and the underlying sidewall~ of convent onal black rubber compound~ are completely free of any white material thereinO ~his prevents the accidental spoiling of the appearance o~ tha tlra by scuf~ing of the resp&c-ti~e ribs. The elevation of tha ribs wlth respect to the white strip 25 i~ tha groove 20 satisfactorily protects the white sur~ace from stain~ng or discoloratio~0 The ~hit8 strip lylng within the groove 15 tu¢ned outwardly of the tlre along the respecti~ely adjace~t surfaces 27~29 of the ad~oining rlbs so that the respeckive edges 31~32 Df the strip lie flush with the outward sur~aces 35~36 o~ the raspective ribs~
Fig. 3 lllustrate a portion o~ the sidewall region 12' of a~ uncured tire 10' disposed o~ a tire bullding surface ~0 and having t e customary black rubber compound o~ the sidewall overlying the cord plies o~ the tire,.
~he numeral 10' identi~ies the tire in proce~s from the fi~ished tire 10. ~kewi.se~ the ~'pr~me" distirlguishes parts of the Nncured tire 10' from like parts of the ~ured tire 10~ A thin skrip 25' o~ white rubber compound ~746~
is disposed circumferentially about the exterior surface ~2 of sidewall regio~ 12' and is conventionally spliced to ~orm an endless white band about the uncured tire which is ~n generally cylindrical form.
~he uncured tire 10' is then removed ~rom the building surface ~0 a~d placed ln a tire cur~ng mold tnot shown) with the thin strip 25' o~ whlte rubber comp~und exposed to direct contact wlth the mold.
In the mold~ as il~ustrated in Fig~ 4~ the inter-mediate portion 50 of the width of the strip 25; l.e.
that portion overly~ng the bottom 28 of the groove 20~
and the respective margi~s 52~54 thereo~ are displaced rslative to each other i~ directions normal to the cont~ur (indicatsd by the line 56) of the sidewall region 12 of the tire 10 in its i~lated co~dition. The displace~ent sffects a moveme~t~ ~ugge~ted by the arrows 58~ of the underlying black ~idewall rubber compou~d outwardly of the contour 56 to ~orm the pair of ribs lh~l6. ~he movement of the black sidewall rubkar relative to the white rubber strip 25 particularly along walls 27 and 29 tends not only to ~orm the strip walls 61~63 between the i~termediate portlon 50 and the margins ~2~5~ but to causa these walls of the strip to become thiNner as tha movem0nt prograssesO Thls thin~ing ef~ect is lncreased by ~orml~g the ribs 14~16 with surfaces 65966 inclined : respectiv~ly ~rom a peak 68 adjacent to the groove 20 . a~d inwardly toward the sidewall contour.
7 ~6~1 Also~ in accordance with the in~ention~ the flow stop ridges 70 about semi-circular in cross-section outllne a~d having a radius of about 1 millimeter ser~P
to prevent the respective white strip margins from ~lowing~ d~ring molding~ beyond the respective ridges.
~he surfaces 65~66 of the ribs are inclined inwardly ~rom the peaks 68 at angles of from 5 to 30 degreesO
m~s arrangement permits the formatio~ of the peak 68 to augment the th~nning effeck de~ired i~ the respeeti~e walls 61~63 without increasing the black rubber required, The width of the respective ribs 14~16~ mea ured radiall~ o~ the tire~ allows considerable tolera~ce i~
the width of the white strip as well as in its location radially of the tireO '~hus~ the respective edges o~
the strip 25~ after molding~ as sea~ in Fig. ~ may ::
terminate between the flow sto~ ridge 70 and the ap-pro~mate mldpoint of the width of the inclined surface 65 or 66 of the respecti~e ribs.
~he tire~ ha~ing been molded a~d cured~ ls removad from the mold and is than mounted and inflated~ ~he margi~s 52~54 o~ the whlte strip and portions of the r~bs 14~16 are then removed~ outwardly of a bu~ing line 75 inward o~ tha respective margi~s 9~ tha whlta strip and passlng through respective intermediate portions of the respactive wall~. mus~ each margin of white is removed and an outward portion of each wall 61~63 i5 also removed. me bu~fing line 75 may be arranged to generally parallel the co~tour 56 of the ~07~6~
sidewall regionO With no loss of appearance in the finished tire~ the buffing line can be a straight line whlch is more readily formed by the cylindrical surface of a co~ventional ~uf~ing wheel.
~he present invention provides a ~umber of ad~antages.
In partlcularg the use of the thin strip of white compound re~uires a mater~ally smaller amount of relatively hig~-cost white material. Moreo~ar~ the entire outward surface of the whlte rubber compou~d is e~posed and no white material is buried in the sidewall or otherwise covered. Hence~ there is no risk that additional white may be accidentally e~posed by minor damage to a tire thereby rendering the surface appearance thereof un-satisfactor~O
Because the location of the thin white ~trip can be seen thr~ughout the process in~tead of bei~g hidden be:~eath an overlying black rubber material~ a mislocation of tha white ca~ be seen and corrected be~ore the cost of succeeding operations is incurredo ~he structural i~tegrity of the underlying sidewall is not affec-ted by the presence therein of white rubbar compound~
me surface finish o~ the thin white strip i~
provlded by its dlrsct contact wlth the tire curlng mold and e~cept for the very thln edges of the strip whlch terminate flush with the finlshed ribs~ the surface is not r3ughened or made por~us by buffing operationsO
~.~7~a61~
While certain representatlve embodiments and details have been shown for the purpose of illustrating the in~ention, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing ~rom the spirit or scope of the invention.
Fig. 3 lllustrate a portion o~ the sidewall region 12' of a~ uncured tire 10' disposed o~ a tire bullding surface ~0 and having t e customary black rubber compound o~ the sidewall overlying the cord plies o~ the tire,.
~he numeral 10' identi~ies the tire in proce~s from the fi~ished tire 10. ~kewi.se~ the ~'pr~me" distirlguishes parts of the Nncured tire 10' from like parts of the ~ured tire 10~ A thin skrip 25' o~ white rubber compound ~746~
is disposed circumferentially about the exterior surface ~2 of sidewall regio~ 12' and is conventionally spliced to ~orm an endless white band about the uncured tire which is ~n generally cylindrical form.
~he uncured tire 10' is then removed ~rom the building surface ~0 a~d placed ln a tire cur~ng mold tnot shown) with the thin strip 25' o~ whlte rubber comp~und exposed to direct contact wlth the mold.
In the mold~ as il~ustrated in Fig~ 4~ the inter-mediate portion 50 of the width of the strip 25; l.e.
that portion overly~ng the bottom 28 of the groove 20~
and the respective margi~s 52~54 thereo~ are displaced rslative to each other i~ directions normal to the cont~ur (indicatsd by the line 56) of the sidewall region 12 of the tire 10 in its i~lated co~dition. The displace~ent sffects a moveme~t~ ~ugge~ted by the arrows 58~ of the underlying black ~idewall rubber compou~d outwardly of the contour 56 to ~orm the pair of ribs lh~l6. ~he movement of the black sidewall rubkar relative to the white rubber strip 25 particularly along walls 27 and 29 tends not only to ~orm the strip walls 61~63 between the i~termediate portlon 50 and the margins ~2~5~ but to causa these walls of the strip to become thiNner as tha movem0nt prograssesO Thls thin~ing ef~ect is lncreased by ~orml~g the ribs 14~16 with surfaces 65966 inclined : respectiv~ly ~rom a peak 68 adjacent to the groove 20 . a~d inwardly toward the sidewall contour.
7 ~6~1 Also~ in accordance with the in~ention~ the flow stop ridges 70 about semi-circular in cross-section outllne a~d having a radius of about 1 millimeter ser~P
to prevent the respective white strip margins from ~lowing~ d~ring molding~ beyond the respective ridges.
~he surfaces 65~66 of the ribs are inclined inwardly ~rom the peaks 68 at angles of from 5 to 30 degreesO
m~s arrangement permits the formatio~ of the peak 68 to augment the th~nning effeck de~ired i~ the respeeti~e walls 61~63 without increasing the black rubber required, The width of the respective ribs 14~16~ mea ured radiall~ o~ the tire~ allows considerable tolera~ce i~
the width of the white strip as well as in its location radially of the tireO '~hus~ the respective edges o~
the strip 25~ after molding~ as sea~ in Fig. ~ may ::
terminate between the flow sto~ ridge 70 and the ap-pro~mate mldpoint of the width of the inclined surface 65 or 66 of the respecti~e ribs.
~he tire~ ha~ing been molded a~d cured~ ls removad from the mold and is than mounted and inflated~ ~he margi~s 52~54 o~ the whlte strip and portions of the r~bs 14~16 are then removed~ outwardly of a bu~ing line 75 inward o~ tha respective margi~s 9~ tha whlta strip and passlng through respective intermediate portions of the respactive wall~. mus~ each margin of white is removed and an outward portion of each wall 61~63 i5 also removed. me bu~fing line 75 may be arranged to generally parallel the co~tour 56 of the ~07~6~
sidewall regionO With no loss of appearance in the finished tire~ the buffing line can be a straight line whlch is more readily formed by the cylindrical surface of a co~ventional ~uf~ing wheel.
~he present invention provides a ~umber of ad~antages.
In partlcularg the use of the thin strip of white compound re~uires a mater~ally smaller amount of relatively hig~-cost white material. Moreo~ar~ the entire outward surface of the whlte rubber compou~d is e~posed and no white material is buried in the sidewall or otherwise covered. Hence~ there is no risk that additional white may be accidentally e~posed by minor damage to a tire thereby rendering the surface appearance thereof un-satisfactor~O
Because the location of the thin white ~trip can be seen thr~ughout the process in~tead of bei~g hidden be:~eath an overlying black rubber material~ a mislocation of tha white ca~ be seen and corrected be~ore the cost of succeeding operations is incurredo ~he structural i~tegrity of the underlying sidewall is not affec-ted by the presence therein of white rubbar compound~
me surface finish o~ the thin white strip i~
provlded by its dlrsct contact wlth the tire curlng mold and e~cept for the very thln edges of the strip whlch terminate flush with the finlshed ribs~ the surface is not r3ughened or made por~us by buffing operationsO
~.~7~a61~
While certain representatlve embodiments and details have been shown for the purpose of illustrating the in~ention, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing ~rom the spirit or scope of the invention.
Claims (4)
1. A tire having a white decor strip displayed circum-ferentially on a sidewall, said tire comprising a pair of ribs formed integrally with said sidewall to extend circumferen-tially of the tire and outwardly of the sidewall to define an annular groove between the ribs, a strip formed solely of white rubber compound not greater than two millimeters thick conforming to said groove and molded and cured therein integrally with the tire, said strip having circumferential edge portions extending outwardly in directions normal to the sidewall region and substantially thinner than the remainder of said strip and terminating outwardly of the bottom of said groove and flush with the outwardly exposed surfaces of the respective ribs, the mold contact surface of said one sidewall being absent only from the terminii of said edge portions and said surfaces, and wherein the surface of said strip is completely exposed and free of overlying black sidewall material, and wherein said ribs comprise only black sidewall material.
2. The method of making a tire having a white sidewall comprising disposing a thin strip of white rubber compound circumferentially about the external surface of the sidewall region of the tire in its uncured state, placing the uncured tire in a tire curing mold with the thin strip exposed to direct contact with the mold, in the mold displacing relative-ly of each other an intermediate portion of the width of the thin strip inwardly and respective margins of the width of the thin strip outwardly in directions normal to the sidewall region to form in said strip between said intermediate portion and each of said margins a wall of substantially diminished thickness relative to said intermediate portion and extend-ing normal to the sidewall region contour and circum-ferentially of said region, curing and removing the tire from the mold, and removing an outward portion of each wall.
3. A method as claimed in Claim 2, further comprising displacing portions of the tire sidewall underlying said margins concurrently with displacement of said margins thereby to stretch and thin each said wall and to form ribs carrying the respective margins outwardly with respect to the inter-mediate portion.
4. The method of making a tire having a white sidewall comprising disposing a thin strip of white rubber compound circumferentially about the external surface of the sidewall region of the tire in its uncured state, placing the uncured tire in a tire curing mold with the thin strip exposed to direct contact with the mold, in the mold displacing relatively of each other an intermediate portion of the width of the thin strip inwardly and respective margins of the width of the thin strip outwardly in directions normal to the sidewall region to form in said strip between said intermediate portion and each of said margins a wall of substantially diminished thickness relative to said inter-mediate portion extending normal to the sidewall region contour and circumferentially of said region, displacing portions of the tire sidewall underlying said margins con-currently with displacement of said margins thereby to stretch and thin each said wall and to form ribs carrying the respective margins outwardly with respect to the inter-mediate portion and forming a flow stop ridge circum-ferentially of the tire on the surface of at least one of said ribs to inhibit mold flow of said margins outwardly along the surface of the respective rib away from said groove, curing and removing the tire from the mold, and removing an outward portion of each wall.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62541275A | 1975-10-20 | 1975-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1074681A true CA1074681A (en) | 1980-04-01 |
Family
ID=24505956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA262,542A Expired CA1074681A (en) | 1975-10-20 | 1976-10-01 | White sidewall tire and method of manufacture |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5251603A (en) |
| AR (1) | AR216449A1 (en) |
| AU (1) | AU498626B2 (en) |
| BR (1) | BR7606905A (en) |
| CA (1) | CA1074681A (en) |
| DE (1) | DE2647644A1 (en) |
| FR (1) | FR2328584A1 (en) |
| GB (1) | GB1525427A (en) |
| IT (1) | IT1075858B (en) |
| MX (1) | MX143736A (en) |
| PH (1) | PH15531A (en) |
| ZA (1) | ZA765960B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1125155B (en) * | 1976-11-19 | 1986-05-14 | Sarda Off Mec | IMPROVEMENTS OF TIRES COVERS |
| JPS53146779A (en) * | 1977-05-27 | 1978-12-20 | Mitsuboshi Belting Ltd | Method for making twootone color tire |
| JPH04118253A (en) * | 1990-09-10 | 1992-04-20 | Alps Electric Co Ltd | Thermal head |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2761489A (en) * | 1953-03-06 | 1956-09-04 | Gen Tire & Rubber Co | Method of manufacture of a pneumatic tire |
| US3253634A (en) * | 1964-02-19 | 1966-05-31 | Goodyear Tire & Rubber | Pneumatic tire |
-
1976
- 1976-10-01 CA CA262,542A patent/CA1074681A/en not_active Expired
- 1976-10-05 ZA ZA765960A patent/ZA765960B/en unknown
- 1976-10-06 PH PH18979A patent/PH15531A/en unknown
- 1976-10-07 GB GB41697/76A patent/GB1525427A/en not_active Expired
- 1976-10-07 AU AU18464/76A patent/AU498626B2/en not_active Expired
- 1976-10-13 AR AR265071A patent/AR216449A1/en active
- 1976-10-13 MX MX166637A patent/MX143736A/en unknown
- 1976-10-15 BR BR7606905A patent/BR7606905A/en unknown
- 1976-10-18 IT IT28435/76A patent/IT1075858B/en active
- 1976-10-19 DE DE19762647644 patent/DE2647644A1/en not_active Ceased
- 1976-10-20 JP JP51126014A patent/JPS5251603A/en active Granted
- 1976-10-20 FR FR7631544A patent/FR2328584A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AR216449A1 (en) | 1979-12-28 |
| JPS5251603A (en) | 1977-04-25 |
| FR2328584A1 (en) | 1977-05-20 |
| IT1075858B (en) | 1985-04-22 |
| MX143736A (en) | 1981-07-02 |
| GB1525427A (en) | 1978-09-20 |
| AU498626B2 (en) | 1979-03-22 |
| FR2328584B1 (en) | 1979-06-22 |
| JPS6128525B2 (en) | 1986-07-01 |
| BR7606905A (en) | 1977-08-30 |
| ZA765960B (en) | 1977-09-28 |
| DE2647644A1 (en) | 1977-04-21 |
| AU1846476A (en) | 1978-04-13 |
| PH15531A (en) | 1983-02-09 |
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