US3839115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire bead holding apparatus and method
Assignee: PNEU UNIROYAL ENGLEBERT
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Filing: 1972-06-23
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Granted: 1974-10-01
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Expires: 1992-06-23
Abstract
Abstract A device including means for gripping wire tire beads including electromagnets for magnetically attracting and holding the beads. The device is to be employed with a conventional tire making machine. Means are provided for moving said gripping means back and forth and sideways to position the gripping means to dispose the beads within the grooves of the rotary drum on which the tire carcass is formed.
Inventors
- 👤 J Leblond
- 👤 G Danneels
- 👤 M Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:57
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/32; B29D2030/3207
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
232 words
Apparatus for holding tire beads and for disposing said beads about an expandable rotary drum of a tire building machine, said apparatus comprising: a pair of wire bead grips, each of said grips including an electromagnet for magnetically holding a tire bead thereon and each of said grips including a pair of arcuate branches which open and close; means for reciprocably moving said grips in a direction perpendicular to the axis of rotation of said rotary drum; means for reciprocably moving said grips in a direction parallel to the axis of rotation of said rotary drum; and a stationary support frame for said wire bead grips, said frame having a median plane extending transversely of the axis of rotation of said rotary drum, said means for moving said grips parallel to said axis of rotation of said drum comprising a pair of carriages and means for mounting said carriages on said frame for movement relative thereto along paths parallel to said axis of said drum, said means for moving said grips perpendicular to said axis of rotation comprising a pair of grip-holder carriages in supporting relation with each grip and means for mounting said grip-holder carriages on said first mentioned carriages for movement relative thereto in a direction perpendicular to the axis of said drum; and means mounted on said grip-holder carriages for moving said branches to open and close said grips.
Claim 2
Dependent Claim
232 words
Apparatus for holding tire beads and for disposing said beads about an expandable rotary drum of a tire building machine, said apparatus comprising: a pair of wire bead grips, each of said grips including an electromagnet for magnetically holding a tire bead thereon and each of said grips including a pair of arcuate branches which open and close; means for reciprocably moving said grips in a direction perpendicular to the axis of rotation of said rotary drum; means for reciprocably moving said grips in a direction parallel to the axis of rotation of said rotary drum; and a stationary support frame for said wire bead grips, said frame having a median plane extending transversely of the axis of rotation of said rotary drum, said means for moving said grips parallel to said axis of rotation of said drum comprising a pair of carriages and means for mounting said carriages on said frame for movement relative thereto along paths parallel to said axis of said drum, said means for moving said grips perpendicular to said axis of rotation comprising a pair of grip-holder carriages in supporting relation with each grip and means for mounting said grip-holder carriages on said first mentioned carriages for movement relative thereto in a direction perpendicular to the axis of said drum; and means mounted on said grip-holder carriages for moving said branches to open and close said grips.
Claim 3
Dependent Claim
28 words
The apparatus of claim 1, wherein said means for moving said grips parallel to said axis further includes means for moving said first mentioned carriages oppositely and synchronously.
Claim 4
Dependent Claim
42 words
The apparatus of claim 2, wherein said last mentioned means comprises an endless drive member, one of said carriages being connected to one of the flights thereof and the other of said carriages being connected to the other of the flights thereof.
Claim 5
Dependent Claim
32 words
The apparatus of claim 2, further comprising locking means for each of said grip-holder carriages for locking said grip-holder carriages in a predetermined position relative to the first mentioned carriage associated therewith.
Claim 6
Dependent Claim
91 words
The apparatus of claim 1, wherein said pair of arcuate branches of each grip has angular extents the sum of which is greater than 180*, and wherein each of said grips includes means for pivotally connecting said branches to their associated grip-holder carriage for movement about an axis that is parallel to said axis of rotation of said drum, and wherein said means mounted on said grip-holder carriages for moving said branches to open and close said grips comprises means for pivotally moving said branches to open and close said grips.
Claim 7
Dependent Claim
17 words
The apparatus of claim 5, wherein said branches are each of greater angular extent than 90* .
Claim 8
Dependent Claim
13 words
The apparatus of claim 6, wherein said branches each extend about 120* .
Claim 9
Dependent Claim
17 words
The apparatus of claim 7, further comprising stop means for limiting the pivotal movement of said branches.
Claim 10
Dependent Claim
25 words
The apparatus of claim 6, wherein each of said branches includes a pair of spaced apart, arcuate, magnet pole pieces and an electromagnet extending therebetween.
Claim 11
Dependent Claim
24 words
The apparatus of claim 1, further comprising means for moving said grips parallel to said axis of rotation and relative to said grip-holder carriages.
Claim 12
Dependent Claim
27 words
The apparatus of claim 10, further comprising means for controlling said last mentioned grip moving means for moving said grips concomitantly with the expansion of said drum.
Claim 13
Dependent Claim
70 words
The apparatus of claim 10, wherein said last mentioned grip moving means includes a guide on said gripholder carriage extending parallel to said axis of rotation and a grip support slidably mounted on said guide, and means for moving said grip support on said guide including a rotatable plate having a cam slot therein, a cam follower in engagement with said cam slot, and a servomotor for rotating said plate.
Claim 14
Dependent Claim
125 words
The apparatus of claim 9, further comprising a stationary support frame for said wire bead grips, said frame having a median plane extending transversely of the axis of rotation of said rotary drum, said means for moving said grips parallel to said axis of rotation of said drum comprising a pair of carriages and means for mounting said carriages on said frame for movement relative thereto along paths parallel to said axis of said drum, said means for moving said grips perpendicular to said axis of rotation comprising a pair of grip-holder carriagEs in supporting relation with each grip, and means for mounting said grip-holder carriages on said first mentioned carriages for movement relative thereto in a direction perpendicular to the axis of said drum.
Claim 15
Dependent Claim
28 words
The apparatus of claim 13, wherein said means for moving said grips parallel to said axis further includes means for moving said first mentioned carriages oppositely and synchronously.
Claim 16
Dependent Claim
24 words
The apparatus of claim 13, further comprising means for moving said grips parallel to said axis of rotation and relative to said grip-holder carriages.
Claim 17
Dependent Claim
27 words
The apparatus of claim 15, further comprising means for controlling said last mentioned grip moving means for moving said grips concomitantly with the expansion of said drum.
Claim 18
Independent Claim
196 words
The method of incorporating a bead wire in a tire carcass, said method to be performed on a machine including an expandable rotary drum having a pair of circumferential bead grooves in the surface thereof and apparatus for releasably holding and disposing said bead wire on said tire carcass, said apparatus including a pair of carriages movable longitudinally of said drum, a pair of grip-holder carriages mounted on said carriages and movable relative thereto in a direction perpendicular to the axis of said drum, and a pair of grips, one for each grip-holder carriage, mounted on said grip-holder carriage, said method comprising the steps of: installing the carcass about said drum in an unexpanded condition; gripping a pair of bead wires in said grips; moving said gripped bead wires into surrounding relation with said drum and outboard of said grooves by moving said carriages axially of said drum and by moving said grip-holder carriages relative to said carriages perpendicular to said drum axis; and then expanding said drum and simultaneously moving said grips axially inward of said drum to dispose said bead wires in said grooves and to turn back said carcass on said bead wires.
Claim 19
Independent Claim
196 words
The method of incorporating a bead wire in a tire carcass, said method to be performed on a machine including an expandable rotary drum having a pair of circumferential bead grooves in the surface thereof and apparatus for releasably holding and disposing said bead wire on said tire carcass, said apparatus including a pair of carriages movable longitudinally of said drum, a pair of grip-holder carriages mounted on said carriages and movable relative thereto in a direction perpendicular to the axis of said drum, and a pair of grips, one for each grip-holder carriage, mounted on said grip-holder carriage, said method comprising the steps of: installing the carcass about said drum in an unexpanded condition; gripping a pair of bead wires in said grips; moving said gripped bead wires into surrounding relation with said drum and outboard of said grooves by moving said carriages axially of said drum and by moving said grip-holder carriages relative to said carriages perpendicular to said drum axis; and then expanding said drum and simultaneously moving said grips axially inward of said drum to dispose said bead wires in said grooves and to turn back said carcass on said bead wires.
Claim 20
Dependent Claim
54 words
The method of claim 17, wherein said apparatus further includes means for moving said grips relative to said grip-holder carriages in the direction of the axis of said drum, and wherein the step of simultaneously moving said grips axially inward of said drum is performed by moving said grips relative to said grip-holder carriages.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |