US4052246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stitcher for tire building
Assignee: Goodyear Tire and Rubber Co
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Filing: 1976-03-30
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Granted: 1977-10-04
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Expires: 1996-03-30
Abstract
Abstract Stitchers for consolidating tire building components successively wrapped on a building drum comprise multiple thin or narrow annular discs in side-by-side array. Each is free independently and individually to rotate about an axis common to the discs in response to the rotation of the building drum, and to be displaced normal to such axis by differing radial elevation of the components relative to the surface of the drum. Uniformly distributed pressure of the discs on the components along the contact zone is obtained by an inflatable cushion extending through the discs and acting on them individually. Thin inner plates disposed respectively within each disc rotatably support the discs and transfer the stitching forces from the cushion to individual discs.
Inventors
- 👤 Angel Ramon Terrado Albareda
- 👤 Joseph Schoellen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:51
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81461; B29C65/00; B29C65/56; B29C65/62; B29C66/82; B29C66/824; B29C66/8242; B29C66/82421; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/28; B29C66/70; B29C66/72; B29C66/721; B29C66/7214; B29C66/72141
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
190 words
A multiple disc stitcher for use in building tires comprising a pair of end assemblies spaced apart and disposed in parallel opposed relation to each other, a multiplicity of outer discs of equal exterior diameter and of concentric annular form and small thickness disposed in side-by-side array between the end members, each disc being slidable relative to the respectively adjacent disc, support means providing single continuous beam support for said discs disposed within the discs and extending normal to the discs between the end assemblies, a resilient fluid pressure containing cushion member juxtaposed to the support means and extending through the discs between the end assemblies and cooperable with the support means to control the displacement of the outer discs relative to the support means, a multiplicity of inner plate members each having an arcuate outer surface slidingly engageable with respectively associated one of said outer discs and small thickness corresponding to the thickness of the associated outer disc, said plate members each having an opening therethrough accommodating said fluid pressure containing member, said outer discs being freely rotatable relative to the support means and relative to said plate members.
Claim 2
Dependent Claim
190 words
A multiple disc stitcher for use in building tires comprising a pair of end assemblies spaced apart and disposed in parallel opposed relation to each other, a multiplicity of outer discs of equal exterior diameter and of concentric annular form and small thickness disposed in side-by-side array between the end members, each disc being slidable relative to the respectively adjacent disc, support means providing single continuous beam support for said discs disposed within the discs and extending normal to the discs between the end assemblies, a resilient fluid pressure containing cushion member juxtaposed to the support means and extending through the discs between the end assemblies and cooperable with the support means to control the displacement of the outer discs relative to the support means, a multiplicity of inner plate members each having an arcuate outer surface slidingly engageable with respectively associated one of said outer discs and small thickness corresponding to the thickness of the associated outer disc, said plate members each having an opening therethrough accommodating said fluid pressure containing member, said outer discs being freely rotatable relative to the support means and relative to said plate members.
Claim 3
Dependent Claim
26 words
A multiple disc stitcher as claimed in claim 1, further comprising, mounting means for disposing said support means in operative association with a tire building surface.
Claim 4
Dependent Claim
35 words
A multiple disc stitcher as claimed in claim 1, wherein said outer discs and said inner plate members are of different materials selected to provide a low coefficient of sliding friction relative to each other.
Claim 5
Dependent Claim
26 words
A multiple disc stitcher as claimed in claim 3, wherein said outer discs are of a polyacetyl and said inner plate members are of a super-polyamide.
Claim 6
Dependent Claim
33 words
A multiple disc stitcher as claimed in claim 1, wherein said fluid pressure containing member comprises an elongate tube of rubbery material having reinforcing cords extending longitudinally in the wall of said tube.
Claim 7
Dependent Claim
39 words
A multiple disc stitcher as claimed in claim 1, further comprising means connecting the fluid pressure containing member in flow communication with fluid pressure supply, and a pressure regulator operable to control the fluid pressure in said containing member.
Claim 8
Dependent Claim
77 words
A multiple disc stitcher as claimed in claim 1, wherein the support means comprises a beam of rectangular cross-section, the cross-section having its two longer sides parallel a diameter of the multiplicity of discs, each said opening having a boundary surface including a spaced apart parallel pair of guide surfaces slidably engaging the respectively associated longer sides of the beam, and a pressure bar extending longitudinally of said beam between the beam and said pressure containing member.
Claim 9
Dependent Claim
47 words
A multiple disc stitcher as claimed in claim 1, wherein the support means comprises a non-rotating beam having a guide surface in a plane normal to the length of said beam, each said inner plate member having a slide surface in slidable contact with said guide surface.
Claim 10
Dependent Claim
61 words
A multiple disc stitcher as claimed in claim 1, further comprising a pair of parallel plates disposed outwardly of and adjacent the associated plate members, each having a planar guide surface parallel to and spaced from the other thereof, each said inner plate member having a pair of slide surfaces each slidably engaging a respective one of said planar guide members.
Claim 11
Dependent Claim
49 words
A multiple disc stitcher as claimed in claim 9, further comprising a beam extending through the openings of the inner plate members, an elongated pad extending between the end members and between said beam and the pressure containing member to control the shape of the latter during expansion thereof.
Claim 12
Dependent Claim
70 words
A multiple disc stitcher as claimed in claim 2, wherein said support means comprises a cylindrical center shaft, a plurality of elastically resilient fluid pressure containing elongated tubes including said containing member extending along the center shaft and spaced angularly therearound through the openings of said plate members, and a pair of bearings each mounting one end of said center shaft for rotation in said mounting means of the shaft.
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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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |