US3654828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire building machine
Assignee: UNIROYAL
•
Filing: 1970-08-05
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Granted: 1972-04-11
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Expires: 1990-08-05
Abstract
Abstract The invention contemplates an improved structure and method for building breakers or belts for vehicle tires, through precise pre-cutting of ply strips from web material and precise transfer to a breaker-building drum. Pre-cutting to length is accomplished by a ply-preparation device which includes a continuous and endless surface for supporting the lead strip in transiently adhered relation to said surface, plus means for the precise indexing displacement of the strip-laden surface to measure the predetermined ply length to be severed upon cut-off. Means are disclosed for the stress-free transfer of the severed ply strip and for the automatic recycled measurement and cut-off of the next ply strip. Means are also disclosed for the interlaced delivery of such plies from successive different stations to accomplish desired multiple-ply building of a particular breaker on the same drum, and for tread-application as part of the same machine cycle.
Inventors
- 👤 Jean Leblond
- 👤 Jean Biet
- 👤 Guy Danneels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:19
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/30; B29D30/3007; B29D30/38; B29D30/46; B29D30/24; B29D2030/241; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0448; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2098; Y10T83/2183; Y10T83/219; Y10T83/444; Y10T83/4607; Y10T83/463; Y10T83/4645; Y10T83/869; Y10T83/8821; Y10T83/8822
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
199 words
Apparatus for cutting to predetermined length successive strips of steel-reinforced tire-breaker web from the lead end of an elongated supply thereof, comprising a magnetic web-transport support surface, a shoe member having a magnetic web-lift support surface positioned locally along said transport surface and conforming to the local contour thereof, magnetic-control means operative to change the relative strengths of magnetic force exerted by said transport surface and by said shoe surface for transiently adhering the web predominantly to one more than to the other of said surfaces and for reversing the transient predominAnce to the other surface more than to the one, coordinated means for interlaced intermittent displacement (1) of said shoe into and away from adjacency to said transport surface and (2) of said transport surface in a web-advancing direction, said coordinated means including a synchronizing connection to said magnetic-control means; said synchronizing connection being such that, in one cycle of shoe displacement, said magneticcontrol means establishes web lift-off from said transport surface during an intermittent displacement of said transport surface and, in another cycle of shoe displacement, said magnetic-control means establishes shoe lift-off from web adhered to said transport surface during an intermittent displacement of said transport surface.
Claim 2
Dependent Claim
199 words
Apparatus for cutting to predetermined length successive strips of steel-reinforced tire-breaker web from the lead end of an elongated supply thereof, comprising a magnetic web-transport support surface, a shoe member having a magnetic web-lift support surface positioned locally along said transport surface and conforming to the local contour thereof, magnetic-control means operative to change the relative strengths of magnetic force exerted by said transport surface and by said shoe surface for transiently adhering the web predominantly to one more than to the other of said surfaces and for reversing the transient predominAnce to the other surface more than to the one, coordinated means for interlaced intermittent displacement (1) of said shoe into and away from adjacency to said transport surface and (2) of said transport surface in a web-advancing direction, said coordinated means including a synchronizing connection to said magnetic-control means; said synchronizing connection being such that, in one cycle of shoe displacement, said magneticcontrol means establishes web lift-off from said transport surface during an intermittent displacement of said transport surface and, in another cycle of shoe displacement, said magnetic-control means establishes shoe lift-off from web adhered to said transport surface during an intermittent displacement of said transport surface.
Claim 3
Dependent Claim
14 words
Apparatus according to claim 1, in which said magnetic surfaces both include permanent-magnet means.
Claim 4
Dependent Claim
47 words
Apparatus according to claim 2, in which one of said magnetic surfaces includes selectively operable magnetic-excitation means for superposing a magnetic field strength on the force of the permanent-magnetic means of said one surface, the selected operation of said last-mentioned means being determined by said magnetic-control means.
Claim 5
Independent Claim
328 words
The method of cutting to predetermined length successive strips of steel-reinforced tire-breaker ply web from the lead end of an elongated supply thereof using a selectively displaceable magnetic web-transport support surface and a shoe member having a magnetic web-lifting support surface locally conforming to the contour of said web-transport support surface, said shoe member being selectively displaceable to a first position of local adjacency of said surfaces and to a second position retracted therefrom to change said adjacency to a widened clearance between said surfaces, which comprises: retaining said lead end between said surfaces while said shoe is in said first position, cutting said lead end from edge to edge at a predetermined lead-end location on said shoe, thereby forming a precisely cut new lead end, controlling the relative strength of magnetization of said surfaces to cause the magnetic strength at said shoe surface to predominate, thereby transiently adhering the new lead end to said shoe, retracting said shoe to remove the new lead end from contact with said transport surface, advancing the displacement of said transport surface while removing the cut-off web piece from said transport surface, moving said shoe to its first position and there changing the control of relative strength of magnetization of said surfaces to cause the magnetic strength at said endless surface to predominate, thereby transferring transient adherence of the new lead end from said shoe to said transport surface and then again retracting said shoe, whereby the new lead end is precisely positioned on said transport surface in clearance with said shoe, advancing the displacement of said transport surface to precisely the extent of said predetermined length while continuing to magnetically adhere said transport surface to the new lead end and to ensuing continuous web, returning said shoe to its first position, and recycling the foregoing steps, whereby for each such cycle a precisely cut new piece of said predetermined length will be transiently made and continuously adhered to said transport surface.
Claim 6
Independent Claim
328 words
The method of cutting to predetermined length successive strips of steel-reinforced tire-breaker ply web from the lead end of an elongated supply thereof using a selectively displaceable magnetic web-transport support surface and a shoe member having a magnetic web-lifting support surface locally conforming to the contour of said web-transport support surface, said shoe member being selectively displaceable to a first position of local adjacency of said surfaces and to a second position retracted therefrom to change said adjacency to a widened clearance between said surfaces, which comprises: retaining said lead end between said surfaces while said shoe is in said first position, cutting said lead end from edge to edge at a predetermined lead-end location on said shoe, thereby forming a precisely cut new lead end, controlling the relative strength of magnetization of said surfaces to cause the magnetic strength at said shoe surface to predominate, thereby transiently adhering the new lead end to said shoe, retracting said shoe to remove the new lead end from contact with said transport surface, advancing the displacement of said transport surface while removing the cut-off web piece from said transport surface, moving said shoe to its first position and there changing the control of relative strength of magnetization of said surfaces to cause the magnetic strength at said endless surface to predominate, thereby transferring transient adherence of the new lead end from said shoe to said transport surface and then again retracting said shoe, whereby the new lead end is precisely positioned on said transport surface in clearance with said shoe, advancing the displacement of said transport surface to precisely the extent of said predetermined length while continuing to magnetically adhere said transport surface to the new lead end and to ensuing continuous web, returning said shoe to its first position, and recycling the foregoing steps, whereby for each such cycle a precisely cut new piece of said predetermined length will be transiently made and continuously adhered to said transport surface.
Claim 7
Dependent Claim
37 words
The method of claim 4, in which said transport surface is cylindrical and is rigid and circumferentially continuous and in which said steps of advancing displacement are limited rotational advances of the cylindrical surface about its axis.
Claim 8
Dependent Claim
75 words
The method of claim 4, in which the step of removing the cut-off piece utilizes a rotatable drum positionable in substantially tangent local proximity to said transport surface, transiently magnetically securing the lead end of the cut-off piece to a take-up location on the periphery of the drum, and then synchronously driving said drum and transport surface at matching surface speeds at the tangent location, whereby the cut-off piecE is peeled off the transport surface.
Claim 9
Dependent Claim
57 words
The method of claim 4, in which the web is of elastomeric material with reinforcing cords including a plurality of steel cords which are biased uniformly with respect to the longitudinal dimension of the web, and in which the cut off step proceeds on an alignment parallel to the said bias in the region of web cut-off.
Claim 10
Independent Claim
357 words
The method of cutting to predetermined length successive strips of steel-reinforced tire-breaker ply web from the lead end of an elongated supply thereof using a continuous and endless selectively displaceable magnetic surface and a shoe member having a magnetic web-supporting surface locally conforming to the contour of said endless surface and selectively displaceable to a first position of local adjacency of said surfaces and to a second position retracted therefrom to change said adjacency to a widened clearance between said surfaces, said predetermined length being less than the peripheral extent of said endless surface, which comprises: retaining said lead end between said surfaces while said shoe is in said first position, cutting said lead end from edge to edge at a predetermined lead-end location on said shoe, thereby forming a precisely cut new lead end, controlling the relative strength of magnetization of said surfaces to cause the magnetic strength at said shoe surface to predominate, thereby transiently adhering the new lead end to said shoe, retracting said shoe to remove the new lead end from contact with said endless surface, removing the cut-off web piece from said endless surface, advancing the displacement of said endless surface by an amount precisely equal to the extent by which the peripheral extent of said endless surface exceeds said predetermined length, moving said shoe to its first position and there changing the control of relative strength of magnetization of said surfaces to cause the magnetic strength at said endless surface to predominate, thereby transferring transient adherence of the new lead end from said shoe to said endless surface and then again retracting said shoe, whereby the new lead end is precisely positioned on said endless surface in clearance with said shoe, further advancing the displacement of said endless surface to precisely the extent of said predetermined length while continuing to magnetically adhere to said endless surface the new lead end and ensuing continuous web, returning said shoe to its first position, and recycling the foregoing steps, whereby for each such cycle a precisely cut new piece of said predetermined length will be transiently made and continuously adhered to said endless surface.
Claim 11
Independent Claim
357 words
The method of cutting to predetermined length successive strips of steel-reinforced tire-breaker ply web from the lead end of an elongated supply thereof using a continuous and endless selectively displaceable magnetic surface and a shoe member having a magnetic web-supporting surface locally conforming to the contour of said endless surface and selectively displaceable to a first position of local adjacency of said surfaces and to a second position retracted therefrom to change said adjacency to a widened clearance between said surfaces, said predetermined length being less than the peripheral extent of said endless surface, which comprises: retaining said lead end between said surfaces while said shoe is in said first position, cutting said lead end from edge to edge at a predetermined lead-end location on said shoe, thereby forming a precisely cut new lead end, controlling the relative strength of magnetization of said surfaces to cause the magnetic strength at said shoe surface to predominate, thereby transiently adhering the new lead end to said shoe, retracting said shoe to remove the new lead end from contact with said endless surface, removing the cut-off web piece from said endless surface, advancing the displacement of said endless surface by an amount precisely equal to the extent by which the peripheral extent of said endless surface exceeds said predetermined length, moving said shoe to its first position and there changing the control of relative strength of magnetization of said surfaces to cause the magnetic strength at said endless surface to predominate, thereby transferring transient adherence of the new lead end from said shoe to said endless surface and then again retracting said shoe, whereby the new lead end is precisely positioned on said endless surface in clearance with said shoe, further advancing the displacement of said endless surface to precisely the extent of said predetermined length while continuing to magnetically adhere to said endless surface the new lead end and ensuing continuous web, returning said shoe to its first position, and recycling the foregoing steps, whereby for each such cycle a precisely cut new piece of said predetermined length will be transiently made and continuously adhered to said endless surface.
Claim 12
Independent Claim
366 words
The method of cutting to predetermined length successive strips of steel-reinforced tire-breaker ply web from the lead end of an elongate supply thereof using a selectively rotatable cylindrical member having a magnetic web-transport support surface and a shoe member having a magnetic web-supporting surface locally conforming to the contour of said transport surface and selectively displaceable to a first position of local adjacency of said surfaces and to a second position retracted therefrom to change said adjacency to a widened clearance between said surfaces, said predetermined length being less than the peripheral extent of said transport surface, which comprises: retaining said lead end between said surfaces while said shoe is in said first position, cutting said lead end from edge to edge at a predetermined lead-end location on said shoe, thereby forming a precisely cut new lead end, controlling the relative strength of magnetization of said surfaces to cause the magnetic strength at said shoe surface to predominate, thereby transiently adhering the new lead end to said shoe, retracting said shoe to remove the new lead end from contact with said transport surface, removing the cut-off web piece from said transport surface, advancing the rotary displacement of said cylindrical member by an amount which at the transport surface thereof precisely equals the Extent by which the peripheral extent of said transport surface exceeds said predetermined length, moving said shoe to its first position and there changing the control of relative strength of magnetization of said surfaces to cause the magnetic strength at said transport surface to predominate, thereby transferring transient adherence of the new lead end from said shoe to said transport surface and then again retracting said shoe, whereby the new lead end is precisely positioned on said transport surface in clearance with said shoe, further advancing the displacement of said transport surface to precisely the extent of said predetermined length while continuing to magnetically adhere to said transport surface the new lead end and ensuing continuous web, returning said shoe to its first position, and recycling the foregoing steps, whereby for each such cycle a precisely cut new piece of said predetermined length will be transiently made and continuously adhered to said transport surface.
Claim 13
Independent Claim
366 words
The method of cutting to predetermined length successive strips of steel-reinforced tire-breaker ply web from the lead end of an elongate supply thereof using a selectively rotatable cylindrical member having a magnetic web-transport support surface and a shoe member having a magnetic web-supporting surface locally conforming to the contour of said transport surface and selectively displaceable to a first position of local adjacency of said surfaces and to a second position retracted therefrom to change said adjacency to a widened clearance between said surfaces, said predetermined length being less than the peripheral extent of said transport surface, which comprises: retaining said lead end between said surfaces while said shoe is in said first position, cutting said lead end from edge to edge at a predetermined lead-end location on said shoe, thereby forming a precisely cut new lead end, controlling the relative strength of magnetization of said surfaces to cause the magnetic strength at said shoe surface to predominate, thereby transiently adhering the new lead end to said shoe, retracting said shoe to remove the new lead end from contact with said transport surface, removing the cut-off web piece from said transport surface, advancing the rotary displacement of said cylindrical member by an amount which at the transport surface thereof precisely equals the Extent by which the peripheral extent of said transport surface exceeds said predetermined length, moving said shoe to its first position and there changing the control of relative strength of magnetization of said surfaces to cause the magnetic strength at said transport surface to predominate, thereby transferring transient adherence of the new lead end from said shoe to said transport surface and then again retracting said shoe, whereby the new lead end is precisely positioned on said transport surface in clearance with said shoe, further advancing the displacement of said transport surface to precisely the extent of said predetermined length while continuing to magnetically adhere to said transport surface the new lead end and ensuing continuous web, returning said shoe to its first position, and recycling the foregoing steps, whereby for each such cycle a precisely cut new piece of said predetermined length will be transiently made and continuously adhered to said transport surface.
Claim 14
Dependent Claim
291 words
Apparatus for cutting to predetermined length successive strips of steel-reinforced tire-breaker web from the lead end of an elongate supply thereof, comprising means for supporting and selectively imparting advancing rotary displacement to a cylindrical magnetic web-transport support surface, a shoe member including a magnetic web-supporting surface locally conforming to the contour of said transport surface, selectively operable positioning means for displacing said shoe member to a first position of local adjacency of said surfaces and to a second position retracted therefrom to change such adjacency to a widened clearance between said surfaces, selectively operable magnetic-control means operative to change the relative strengths of magnetic force exerted by said transport surface and by said shoe surface for transiently adhering the web predominantly to one more than to the other of said surfaces and for reversing the transient predominance of adherence to the other surface more than to the one, first limited-displacement drive means precisely advancing said transport surface to the extent that said peripheral length exceeds said predetermined length, second limited-displacement drive means precisely advancing said transport surface to the extent of said predetermined length, means coordinating the operation of said magnetic-control means to establish predominant adherence of web to said shoe for a first cycle of shoe displacement from said first position to said second position and of return after a dwell at said second position, followed by reversal of predominant adherence for a second such cycle of shoe displacement, said coordinating means controlling a cycle of said first drive means during the dwell of said first shoe cycle and a cycle of said second drive means during the dwell of said second shoe cycle, and web cut-off means operative near said shoe at the conclusion of said second shoe cycle.
Claim 15
Dependent Claim
291 words
Apparatus for cutting to predetermined length successive strips of steel-reinforced tire-breaker web from the lead end of an elongate supply thereof, comprising means for supporting and selectively imparting advancing rotary displacement to a cylindrical magnetic web-transport support surface, a shoe member including a magnetic web-supporting surface locally conforming to the contour of said transport surface, selectively operable positioning means for displacing said shoe member to a first position of local adjacency of said surfaces and to a second position retracted therefrom to change such adjacency to a widened clearance between said surfaces, selectively operable magnetic-control means operative to change the relative strengths of magnetic force exerted by said transport surface and by said shoe surface for transiently adhering the web predominantly to one more than to the other of said surfaces and for reversing the transient predominance of adherence to the other surface more than to the one, first limited-displacement drive means precisely advancing said transport surface to the extent that said peripheral length exceeds said predetermined length, second limited-displacement drive means precisely advancing said transport surface to the extent of said predetermined length, means coordinating the operation of said magnetic-control means to establish predominant adherence of web to said shoe for a first cycle of shoe displacement from said first position to said second position and of return after a dwell at said second position, followed by reversal of predominant adherence for a second such cycle of shoe displacement, said coordinating means controlling a cycle of said first drive means during the dwell of said first shoe cycle and a cycle of said second drive means during the dwell of said second shoe cycle, and web cut-off means operative near said shoe at the conclusion of said second shoe cycle.
Claim 16
Dependent Claim
48 words
Apparatus according to claim 10, in which said transport surface is part of a cylindrical member and the means for supporting the same includes a frame member, and locally coacting locating elements on said members to define limits of the rotary displacement advanced by said first drive means.
Claim 17
Dependent Claim
48 words
Apparatus according to claim 10, in which said transport surface is part of a cylindrical member and the means for supporting the same includes a frame member, and locally coacting locating elements on said members to define limits of the rotary displacement advanced by said second drive means.
Claim 18
Dependent Claim
49 words
Apparatus according to claim 10, in which said transport surface is part of a cylindrical member and the means for supporting the same includes a frame member, and selectively operable interengaging locking elements on said members to define precise limits of the displacement advanced by said first drive means.
Claim 19
Dependent Claim
49 words
Apparatus according to claim 10, in which said transport surface is part of a cylindrical member and the means for supporting the same includes a frame member, and seLectively operable interengaging locking elements on said members to define precise limits of the displacement advanced by said second drive means.
Claim 20
Dependent Claim
65 words
Apparatus according to claim 14, and including a building drum with means for rotating the same and for positioning the same in local tangency with the path of movement of the lead end of the cut-off piece when said cylindrical member is rotated, said drum including magnetic means for transient web-adhesion operative upon contact of said drum with the lead end of the cut-off piece.
Claim 21
Dependent Claim
35 words
Apparatus according to claim 15, in which said drum-rotating means includes an element establishing a rotary drive connection to said cylindrical member upon establishing said tangent relation with the lead end of the cut-off piece.
References Cited (Backward Citations)
US2598451A
Cited
US2837331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |