US3716442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Off-the-road tire building method and apparatus
Assignee: AMF Inc
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Filing: 1970-04-09
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Granted: 1973-02-13
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Expires: 1990-04-09
Abstract
Abstract Apparatus for building tires, such as new off-the-road tires, on a drum arrangement whereby a strip of rubber is placed thereon as the drum continually rotates. The apparatus includes an application and sensing arm which guides the material onto the drum in a predetermined pattern in accordance with a straight line template. The application and sensing arm moves in a straight line across the surface of the building drum to build a tire contour in accordance with the template configuration. The apparatus is portable and may be removed from a building station when not required and thus used to serve a number of building stations.
Inventors
- 👤 R Hineline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:40
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/30; B29D30/3028
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
161 words
In an apparatus for applying a strip of tread material to a rotating tire casing, the combination comprising: means for feeding the strip of tread material to the rotating tire casing, means for applying the tread material to the casing, a template representative of the tread configuration to be applied to the casing, means for sensing the tread material after it is applied to the casing and for sensing the template configuration, and, drive means for moving the tread material feeding means along the tire casing in one direction only during the tread application operation, and control means for said drive means responsive to the means for sensing the tread material and the means for sensing the template, said control means being operable to cause said drive means to move the tread material feeding means along the tire casing only when the thickness of the tread material at a particular site along the casing corresponds to that set by the template.
Claim 2
Dependent Claim
161 words
In an apparatus for applying a strip of tread material to a rotating tire casing, the combination comprising: means for feeding the strip of tread material to the rotating tire casing, means for applying the tread material to the casing, a template representative of the tread configuration to be applied to the casing, means for sensing the tread material after it is applied to the casing and for sensing the template configuration, and, drive means for moving the tread material feeding means along the tire casing in one direction only during the tread application operation, and control means for said drive means responsive to the means for sensing the tread material and the means for sensing the template, said control means being operable to cause said drive means to move the tread material feeding means along the tire casing only when the thickness of the tread material at a particular site along the casing corresponds to that set by the template.
Claim 3
Dependent Claim
42 words
An apparatus in accordance with claim 1 wherein: the means for feeding the strip of material to the tire casing comprises means for supplying a strip of material and a plurality of rollers for guiding said strip to the rotating tire casing.
Claim 4
Dependent Claim
87 words
An apparatus in accordance with claim 1 wherein: the means for applying the tread to the tire casing comprises an application and sensing arm having an application head mounted on said arm, the application head including a plurality of application and stitching rollers for applying the tread to the tire casing, and, the means for sensing the tread material comprises a sensing head mounted on said arm in predetermined relation to the application head to sense the tread material after it has been applied to the casing.
Claim 5
Dependent Claim
86 words
An apparatus in accordance with claim 3 wherein: the sensing head comprises a cam arrangement, a template having a predetermined configuration engaged by said cam arrangement, a rack mounted to said cam arrangement and a switch mounted to the rack at the opposite end thereof, said switch being engaged by the sensing roller as the tread builds up on the tire casing to activate the means responsive to the sensing means to drive the means for applying the strip of tread material transversely along the casing.
Claim 6
Dependent Claim
57 words
An apparatus in accordance with claim 3 further including: a frame portion having said application and sensing arm mounted thereon, a pair of guide rails engaging said frame portion, an elongated drive screw being coupled to said frame portion to drive said application and sensing arm back and forth along the guide rails opposite the tire casing.
Claim 7
Dependent Claim
27 words
An apparatus in accordance with claim 5 wherein: the frame portion includes means for rapidly mounting and locking said frame portion in position adjacent the tire casing.
Claim 8
Dependent Claim
95 words
An apparatus in accordance with claim 6 wherein: the means for rapidly mounting and locking said frame portion in position adjacent to tire casing comprises a plurality of floor jacks, a floor plate adjacent the tire casing having spaced apertures therein, said floor jacks including means for engaging the apertures in the floor plate comprising a first pair of threaded members for engaging the apertures in said floor plate and a second pair of pins for engaging apertures in the floor plate, said locking means comprising a pivotal member for locking said pins in position.
Claim 9
Dependent Claim
63 words
An apparatus in accordance with claim 5 wherein: the frame portion includes a first and second pair of rollers, a first and second shaft having the respective pairs of rollers mounted thereon, said shafts being journaled at their end portions to the frame to provide means for moving said application and sensing head into a tire building position adjacent a rotatable tire casing.
Claim 10
Dependent Claim
72 words
An apparatus in accordance with claim 1 wherein: the means responsive to the sensing means for moving the feeding means comprises switch means activated by the sensing means when the required thread contour is reached at the point being sensed on the tire casing and a relay control circuit operated by said switching means to actuate the feeding means to move transversely across the casing surface until the switching means is inactivated.
Claim 11
Dependent Claim
150 words
Apparatus for applying a strip of rubber or the like to a rotating casing, which comprises: means for feeding a strip of rubber, means for applying the rubber strip to the rotating casing, a template representative of the configuration of the rubber to be applied to the rotating casing, drive means for moving the rubber strip application means in one direction along the axis of the casing, means for sensing the point on the template that corresponds to the location along the axis of the casing where the rubber strip is being applied, means for sensing when a sufficient amount of rubber strip has been applied to the casing at said location to conform to the program defined by the template, and means for causing the drive means to move the rubber strip application means along the casing only in response to the actuation of said last named sensing means.
Claim 12
Dependent Claim
150 words
Apparatus for applying a strip of rubber or the like to a rotating casing, which comprises: means for feeding a strip of rubber, means for applying the rubber strip to the rotating casing, a template representative of the configuration of the rubber to be applied to the rotating casing, drive means for moving the rubber strip application means in one direction along the axis of the casing, means for sensing the point on the template that corresponds to the location along the axis of the casing where the rubber strip is being applied, means for sensing when a sufficient amount of rubber strip has been applied to the casing at said location to conform to the program defined by the template, and means for causing the drive means to move the rubber strip application means along the casing only in response to the actuation of said last named sensing means.
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |