US3883387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building drum shaping segment assembly
Assignee: MICRO POISE HOLDINGS US Inc
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Filing: 1973-08-28
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Granted: 1975-05-13
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Expires: 1993-08-28
Abstract
Abstract Apparatus for the building of tires, bands, or laminate structures; a tire building drum having a radially expansible medial portion and contractible end portions. An improved shaping segment assembly for defining the circumferential extent of the building surface on the radially expansible medial portion.
Inventors
- 👤 Geza M Csatlos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:32
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/24; B29D30/32; B29D2030/3221; B29D2030/3228
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
180 words
A shaping segment assembly carried by a shaping mechanism used to radially expand the medial portion of a building drum having building surfaces provided by said medial portion said contractible end portions, said medial portion being overlaid by a cylindrical sleeve, said medial and end portions being mounted around a drum shaft, said shaping mechanism including opposed axially movable actuator sleeves mounted around said drum shaft, each said actuator sleeve carrying the axially outer end of one of a pair of a series of control links positioned radially around said drum shaft, the axially inner end of each pair of control links being pivotally connected to a shaping segment carrier, characterized in that, said assembly has an alternating series of fixed and floating segments underlying and supporting said cylindrical sleeve as a building surface, each said fixed segment being carried by one of the series of said carriers pivotally connected to a pair of said control links, each said floating segment being connected adjacent the ends thereof to a fixed segment by a pair of continuous chains with pantographic links.
Claim 2
Dependent Claim
180 words
A shaping segment assembly carried by a shaping mechanism used to radially expand the medial portion of a building drum having building surfaces provided by said medial portion said contractible end portions, said medial portion being overlaid by a cylindrical sleeve, said medial and end portions being mounted around a drum shaft, said shaping mechanism including opposed axially movable actuator sleeves mounted around said drum shaft, each said actuator sleeve carrying the axially outer end of one of a pair of a series of control links positioned radially around said drum shaft, the axially inner end of each pair of control links being pivotally connected to a shaping segment carrier, characterized in that, said assembly has an alternating series of fixed and floating segments underlying and supporting said cylindrical sleeve as a building surface, each said fixed segment being carried by one of the series of said carriers pivotally connected to a pair of said control links, each said floating segment being connected adjacent the ends thereof to a fixed segment by a pair of continuous chains with pantographic links.
Claim 3
Dependent Claim
48 words
A shaping segment assembly according to claim 1, further characterized in that, each segment has a zigzag configuration, with both an axial and radial extent sufficient, to provide support for the cylindrical sleeve under the areas of a structure being built on said medial portion of the drum.
Claim 4
Dependent Claim
51 words
A shaping segment assembly according to claim 1, further characterized in that, each segment has an interconnected and reversed chevron configuration, with both an axial and radial extent sufficient, to provide support for the cylindrical sleeve under the areas of a structure being built on said medial portion of the drum.
Claim 5
Dependent Claim
125 words
A building drum having the shaping segment assembly of claim 1, wherein the shaping mechanism therefore is, further characterized in that, said shaping segment carrier is also a tie link, and, each said tie link has a medial slot therein transverse the axis of said drum shaft to receive a control pin inserted therethrough, and an axially inner end of each control link has a slot therein oriented to traverse said slot in a shaping segment and to receive said control pin, said pin beinG mutually captivated by said slots equidistant from the pivotal connections of said control links to a tie link when said actuator sleeves are moved relatively axially inwardly on said drum shaft to radially expand said medial portion of the drum.
Claim 6
Dependent Claim
151 words
A shaping segment assembly carried by a shaping mechanism used to radially expand the medial portion of a building drum mounted on a drum shaft, said shaping mechanism including opposed axially movable actuator sleeves mounted around said drum shaft, each said actuator sleeve carrying the axially outer end of one of a pair of a series of control links positioned radially around said drum shaft, the axially inner end of each pair of control links being pivotally connected to a shaping segment carrier, characterized in that, said assembly has an alternating series of fixed and floating segments underlying and supporting a cylindrical sleeve as a building surface, each said fixed segment being carried by one of the series of said carriers pivotally connected to a pair of said control links, each said floating segment being connected adjacent the ends thereof by links to the adjacent fixed segment on each side thereof.
Claim 7
Dependent Claim
151 words
A shaping segment assembly carried by a shaping mechanism used to radially expand the medial portion of a building drum mounted on a drum shaft, said shaping mechanism including opposed axially movable actuator sleeves mounted around said drum shaft, each said actuator sleeve carrying the axially outer end of one of a pair of a series of control links positioned radially around said drum shaft, the axially inner end of each pair of control links being pivotally connected to a shaping segment carrier, characterized in that, said assembly has an alternating series of fixed and floating segments underlying and supporting a cylindrical sleeve as a building surface, each said fixed segment being carried by one of the series of said carriers pivotally connected to a pair of said control links, each said floating segment being connected adjacent the ends thereof by links to the adjacent fixed segment on each side thereof.
Claim 8
Dependent Claim
91 words
In a tire building drum having a drum shaft, a shaping segment assembly for providing the tire building support comprising, a plurality of generally axially extending segments of substantial radial dimension and closely spaced around the circumference of said drum, said segments having a radially retracted and a radially expanded condition, each said segment having a zigzag configuration and nesting with adjacent segments in both retracted and expanded conditions to provide a substantially continuous supporting drum surface, and means for moving said segments radially to circumferentially expand and retract said assembly.
Claim 9
Dependent Claim
91 words
In a tire building drum having a drum shaft, a shaping segment assembly for providing the tire building support comprising, a plurality of generally axially extending segments of substantial radial dimension and closely spaced around the circumference of said drum, said segments having a radially retracted and a radially expanded condition, each said segment having a zigzag configuration and nesting with adjacent segments in both retracted and expanded conditions to provide a substantially continuous supporting drum surface, and means for moving said segments radially to circumferentially expand and retract said assembly.
Claim 10
Dependent Claim
40 words
A shaping segment assembly as in claim 6 further comprising, a generally axially directed flange mounted on the radially inner surface of each segment, the apices of each segment overlying the flanges of adjacent segments when said assembly is expanded.
Claim 11
Dependent Claim
14 words
A shaping segment assembly as in claim 6 further comprising, links interconnecting adjacent segments.
Claim 12
Dependent Claim
34 words
A shaping segment assembly as in claim 8 in which said links are pivoted on adjacent assemblies by pins passing through holes in said links, at least one hole in each link being elongated.
Claim 13
Dependent Claim
50 words
A shaping segment as in claim 6 in which said projecting means includes a series of control links each supporting a segment carrier and spaced around said shaft, each of the alternate segments being engaged by a segment carrier, and links connecting the remaining adjacent segments to said alternate segments.
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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |