Patent US4415956A successfully refreshed from Google Patents.
US3852142A
Expired / Lapsed
US
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Apparatus for applying a rubber strip onto a pneumatic tire carcass
Assignee: PNEU UNIROYAL ENGLEBERT
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Filing: 1972-05-22
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Granted: 1974-12-03
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Expires: 1992-05-22
Abstract
Abstract An apparatus for the automatic supply, guiding, applying and cutting to the desired lengths of an unvulcanized rubber strip. The rubber strip is applied to a tire carcass to improve the adhesion of the subsequently applied tread layer to the carcass. The apparatus includes means for unrolling the strip from a supply spool and centering the strip onto a transfer drum; means for applying the strip onto the transfer drum and cutting the strip to the desired length; and means for axially moving the transfer drum to a position adjacent a tire building drum where the rubber strip is applied to the building drum.
Inventors
- 👤 Jean Rene Leblond
- 👤 Jean Armand Biet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:12
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/30; B29D30/3007; B29D30/28; B29D30/24; B29D2030/241; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1075; Y10T156/12; Y10T156/1317; Y10T156/1322
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
242 words
An apparatus for applying a rubber strip of a desired length to a pneumatic tire carcass mounted on a tire building drum, said apparatus comprising means for supplying said strip to an application means; application means for receiving said strip and for winding said strip on a transfer drum located at a first position adjacent said application means, said transfer drum having an outer surface to which said strip adheres, said application means including means for pressing said strip onto the transfer drum; means for cutting said strip to a desired length corresponding to the circumferential length of the carcass on the tire building drum after winding said strip on the transfer drum; means for axially moving the transfer drum and said adhered strip to a second position adjacent the tire-building drum; means for radially moving the transfer drum and said adhered strip into tangential rotational contact with said tirebuilding drum; means for locking the transfer drum in a plurality of desired rotational positions, said locking means including a plurality of engageable elements located on the transfer drum and a cooperating element located on the axial movable means for engaging each of said engageable elements; and independent means for detecting the position of the means for axially moving the transfer drum; for detecting the rotational position of the transfer drum; and for detecting, respectively, whether the cutting means, the application means and the pressing means is in an operative or inoperative position.
Claim 2
Independent Claim
242 words
An apparatus for applying a rubber strip of a desired length to a pneumatic tire carcass mounted on a tire building drum, said apparatus comprising means for supplying said strip to an application means; application means for receiving said strip and for winding said strip on a transfer drum located at a first position adjacent said application means, said transfer drum having an outer surface to which said strip adheres, said application means including means for pressing said strip onto the transfer drum; means for cutting said strip to a desired length corresponding to the circumferential length of the carcass on the tire building drum after winding said strip on the transfer drum; means for axially moving the transfer drum and said adhered strip to a second position adjacent the tire-building drum; means for radially moving the transfer drum and said adhered strip into tangential rotational contact with said tirebuilding drum; means for locking the transfer drum in a plurality of desired rotational positions, said locking means including a plurality of engageable elements located on the transfer drum and a cooperating element located on the axial movable means for engaging each of said engageable elements; and independent means for detecting the position of the means for axially moving the transfer drum; for detecting the rotational position of the transfer drum; and for detecting, respectively, whether the cutting means, the application means and the pressing means is in an operative or inoperative position.
Claim 3
Dependent Claim
36 words
Apparatus according to claim 1 wherein said transfer drum is radially moved by a pivotable arm attached to the transfer drum, the arm being pivotable about an axis parallel to the axis of the transfer drum.
Claim 4
Dependent Claim
20 words
Apparatus according to claim 2 wherein the pivotable arm is mounted on the means for axially moving the transfer drum.
Claim 5
Dependent Claim
21 words
Apparatus according to claim 1 wherein the application means includes an applicator means for guiding the strip to the transfer drum.
Claim 6
Dependent Claim
31 words
Apparatus according to claim 4 wherein the cutting means includes a cutting shoe, the strip being located between the pressing means and the cutting shoe; and means for cutting the strip.
Claim 7
Dependent Claim
20 words
Apparatus according to claim 5 wherein the cutting shoe includes a groove through which the cutting means contacts the strip.
Claim 8
Dependent Claim
30 words
Apparatus according to claim 4 including means for moving the applicator means, the pressing means and the cutting means alternately along mutually independent axes to and from the transfer drum.
Claim 9
Dependent Claim
19 words
Apparatus according to claim 4 wherein the applicator means includes a clip for securing the strip against the applicator.
Claim 10
Dependent Claim
19 words
Apparatus according to claim 4 wherein the applicator means includes pins for removably securing the strip to the apparAtus.
Claim 11
Dependent Claim
27 words
Apparatus according to claim 4 wherein the cutting means is mounted on a movable carriage, the carriage being movable parallel to the axis of the transfer drum.
Claim 12
Dependent Claim
26 words
Apparatus according to claim 4 wherein the cutting means includes a toothed rotary disc, said disc being movable parallel to the axis of the transfer drum.
Claim 13
Dependent Claim
32 words
Apparatus according to claim 1, wherein the supply means includes a spool for the rubber strip, said strip being interleaved with a liner; and means for separating the strip from the liner.
Claim 14
Dependent Claim
23 words
Apparatus according to claim 1 comprising means for locking the transfer drum against axial movement in each of said first and second positions.
Claim 15
Dependent Claim
29 words
Apparatus according to claim 1 the means for detecting the position of the cutting means includes means for detecting operative positions of a cutting shoe and of a cutter.
Claim 16
Dependent Claim
22 words
Apparatus according to claim 14 wherein the position detecting means operates a control system, said control system comprising sequenced fluid operated jacks.
Claim 17
Dependent Claim
65 words
Apparatus according to claim 1 wherein the transfer drum radial movement is controlled by two fluid operated jacks; one of said jacks having a given stroke for radially moving the transfer drum to and from the first position; the other of said jacks having a stroke longer than the given stroke for radially moving the transfer drum into tangential rotational contact with the tire-building drum.
Claim 18
Dependent Claim
40 words
Apparatus according to claim 1 wherein the means for axially moving the transfer drum comprises a carriage-supporting the transfer drum and drive means connected to the carriage for moving the transfer drum parallel to the axis of the transfer drum.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |