Patent US3787263A successfully refreshed from Google Patents.
US3787263A
Expired / Lapsed
US
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Method of and apparatus for sticking an apex rubber strip on bead rings for use in pneumatic tires
Assignee: Bridgestone Corp
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Filing: 1971-12-15
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Granted: 1974-01-22
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Expires: 1991-12-15
Abstract
Abstract A method of and apparatus for automatically sticking an apex rubber strip on bead rings for use in pneumatic tires on mass production basis are provided whereby a number of bead rings may be fed to and disposed on a pair of driving rollers one by one and a continuous apex rubber strip may be fed to the outer periphery of each bead ring. Successive steps of sticking the forward end of the apex rubber strip on the outer periphery of each bead ring, rotating the driving rollers, detecting the arrival of the forward end of the apex rubber strip stuck on the outer periphery of each bead ring at its final position around the bead ring, obliquely cutting the rear end of one turn of the apex rubber strip, re-starting the rotation of the driving rollers and sticking the rear end of the apex rubber strip thus cut on the bead ring, and replacing the bead ring with a new bead ring, are performed automatically.
Inventors
- 👤 H Yonekawa
- 👤 M Miyaoka
- 👤 N Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:17
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/48; B29D30/50; B29D2030/482; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1378
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
283 words
A method of sticking an apex rubber strip on bead rings for use in pneumatic tires comprising the steps of disposing a bead ring on a pair of driving rollers and supporting said bead ring between said driving rollers on the one hand and at least one pressure roller which can correct unevenness of the curvature of that arcuate portion of said bead ring which lies between said driving rollers on the other hand, sticking an obliquely cut end of an apex rubber strip on the outer periphery of said arcuate portion of the bead ring with the aid of a guide roller movaBle between a first position where said guide roller is urged against the outer periphery of said arcuate portion of the bead ring and a second position where said guide roller is retracted from said first position, rotating said bead ring by said driving rollers to stick that portion of said apex rubber strip which succeeds said obliquely cut end stuck thereon and delivered through said guide roller on the outer periphery of said bead ring and then retracting said guide roller to said second position, detecting the arrival of said obliquely cut end stuck on the apex rubber strip at the outer periphery of said arcuate portion of the bead ring to stop said driving rollers and then obliquely cut that portion of the apex rubber strip which lies between the guide roller and the driving roller, re-starting the rotation of said driving rollers to stick the apex rubber strip thus cut on the bead ring and releasing said pressure roller, and finally replacing said bead ring with said apex rubber strip stuck thereon with a new bead ring.
Claim 2
Independent Claim
283 words
A method of sticking an apex rubber strip on bead rings for use in pneumatic tires comprising the steps of disposing a bead ring on a pair of driving rollers and supporting said bead ring between said driving rollers on the one hand and at least one pressure roller which can correct unevenness of the curvature of that arcuate portion of said bead ring which lies between said driving rollers on the other hand, sticking an obliquely cut end of an apex rubber strip on the outer periphery of said arcuate portion of the bead ring with the aid of a guide roller movaBle between a first position where said guide roller is urged against the outer periphery of said arcuate portion of the bead ring and a second position where said guide roller is retracted from said first position, rotating said bead ring by said driving rollers to stick that portion of said apex rubber strip which succeeds said obliquely cut end stuck thereon and delivered through said guide roller on the outer periphery of said bead ring and then retracting said guide roller to said second position, detecting the arrival of said obliquely cut end stuck on the apex rubber strip at the outer periphery of said arcuate portion of the bead ring to stop said driving rollers and then obliquely cut that portion of the apex rubber strip which lies between the guide roller and the driving roller, re-starting the rotation of said driving rollers to stick the apex rubber strip thus cut on the bead ring and releasing said pressure roller, and finally replacing said bead ring with said apex rubber strip stuck thereon with a new bead ring.
Claim 3
Dependent Claim
304 words
Apparatus for sticking an apex rubber strip on bead rings for use in pneumatic tires, comprising means for rotatably supporting a bead ring and consisting of a pair of driving rollers arranged along the outer periphery of said bead ring and spaced one from the other and at least one pressure roller adapted to slightly increase the curvature of that arcuate portion of said bead ring which lies between said driving rollers; means for urging an apex rubber strip against said bead ring and consisting of a guide roller for guiding said apex rubber strip to be stuck on the outer periphery of said bead ring, a touch roller which is in engagement with said guide roller and adapted to be rotated in reciprocation along the periphery of said guide roller, and an operating mechanism including a restraining guide piece and adapted to move said guide roller from a first position where said guide roller makes contact with the outer periphery of said bead ring under pressure to a second position where said guide roller is retracted from the outer periphery of said bead ring, said guide roller being permitted to freely rotate during the movement of said guide roller towards said first position and caused to be rotated in a direction such that the obliquely cut end of said apex rubber strip clamped between said guide roller and said touch roller is retracted; means for detecting the arrival of that end of said apex rubber strip which is stuck on the outer periphery of said bead ring at said arcuate portion of the bead ring in response to the rotation of said driving rollers; and a cutter for obliquely cutting that portion of said apex rubber strip which lies between said guide roller located at said second retracted position and said driving roller.
Claim 4
Dependent Claim
304 words
Apparatus for sticking an apex rubber strip on bead rings for use in pneumatic tires, comprising means for rotatably supporting a bead ring and consisting of a pair of driving rollers arranged along the outer periphery of said bead ring and spaced one from the other and at least one pressure roller adapted to slightly increase the curvature of that arcuate portion of said bead ring which lies between said driving rollers; means for urging an apex rubber strip against said bead ring and consisting of a guide roller for guiding said apex rubber strip to be stuck on the outer periphery of said bead ring, a touch roller which is in engagement with said guide roller and adapted to be rotated in reciprocation along the periphery of said guide roller, and an operating mechanism including a restraining guide piece and adapted to move said guide roller from a first position where said guide roller makes contact with the outer periphery of said bead ring under pressure to a second position where said guide roller is retracted from the outer periphery of said bead ring, said guide roller being permitted to freely rotate during the movement of said guide roller towards said first position and caused to be rotated in a direction such that the obliquely cut end of said apex rubber strip clamped between said guide roller and said touch roller is retracted; means for detecting the arrival of that end of said apex rubber strip which is stuck on the outer periphery of said bead ring at said arcuate portion of the bead ring in response to the rotation of said driving rollers; and a cutter for obliquely cutting that portion of said apex rubber strip which lies between said guide roller located at said second retracted position and said driving roller.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |