US3853667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for wrapping continuous cores in tape material
Assignee: Individual
•
Filing: 1972-10-26
•
Granted: 1974-12-10
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Expires: 1992-10-26
Abstract
Abstract A machine for wrapping continuous cores in tape material intended preferably for manufacturing V-belt blanks is disclosed, said machine comprising a mechanism for spiral-pattern wrapping of a core in material having a gear with a radial slot and rotated through a pair of idle gears. Secured to this gear at an angle to its axis of rotation is a holder for a reel wound with tape material. The above-mentioned gear is mounted on a hollow axle fixed to a carriage which is installed with a possibility for setting displacement along the bedframe in relation to the driving pulley. The hollow axle has a longitudinal cut which coincides with the radial slot made in the gear, whereas one of the branches of a core tensioned by the driving and driven pulleys is inserted through the slot and the cut into the hollow of the axle. The proposed machine permits wrapping a core of any size and cross-sectional profile with a required number of wrapping layers during a single revolution and with no folds or overlaps to occur.
Inventors
- 👤 I Polshikov
- 👤 L Kurdin
- 👤 A Titarenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:53
CPC Classifications
B; B29; B29D; B29D29/00; B29D29/10; B29D30/00; B29D30/06; B29D30/48; B29D30/50
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
302 words
A machine for wrapping continuous cores in tape material, said machine comprising: a bedframe; a driving pulley mounted on said bedframe and a driven pulley mounted on said bedframe, said pulleys adapted to move a core; a mechanism adapted to move said driven pulley for tensioning said core; and a mechanism for spiral-pattern wrapping of said core in tape material comprising a rotatable gear having a radial slot; a holder for a reel of the tape material being secured to the end face of said gear at an angle to the axis of rotation of said gear; a carriage mounted on said bedframe; means for setting displacements of said carriage along said bedframe in relation to the said driving pulley so as to allow continuous cores of different cross-sectional shapes and lengths to be wrapped; a hollow axle affixed to said carriage for mounting said rotatable gear thereon, the interior of said axle accomodating one of the branches of said core tensioned on said pulleys, said hollow axle having longitudinal cut for coinciding with said radial slot of said gear when one of the branches of said core is inserted through both said slot and said cut into said hollow axle; a meChanism for centering said core about the axis of rotation of said gear during wrapping said core which is mounted on said hollow axle of said carriage and is disposed between said driving pulley and said carriage; at least one pair of idle gears adapted to drive said rotatable gear and disposed so that the distance between the points of tangency of their pitch circles exceeds the length of arc of said slot of said rotatable gear; and a flexible arm cantilever-mounted on said holder and adapted to be in permanent contact with the tape material unwinding off said reel.
Claim 2
Dependent Claim
302 words
A machine for wrapping continuous cores in tape material, said machine comprising: a bedframe; a driving pulley mounted on said bedframe and a driven pulley mounted on said bedframe, said pulleys adapted to move a core; a mechanism adapted to move said driven pulley for tensioning said core; and a mechanism for spiral-pattern wrapping of said core in tape material comprising a rotatable gear having a radial slot; a holder for a reel of the tape material being secured to the end face of said gear at an angle to the axis of rotation of said gear; a carriage mounted on said bedframe; means for setting displacements of said carriage along said bedframe in relation to the said driving pulley so as to allow continuous cores of different cross-sectional shapes and lengths to be wrapped; a hollow axle affixed to said carriage for mounting said rotatable gear thereon, the interior of said axle accomodating one of the branches of said core tensioned on said pulleys, said hollow axle having longitudinal cut for coinciding with said radial slot of said gear when one of the branches of said core is inserted through both said slot and said cut into said hollow axle; a meChanism for centering said core about the axis of rotation of said gear during wrapping said core which is mounted on said hollow axle of said carriage and is disposed between said driving pulley and said carriage; at least one pair of idle gears adapted to drive said rotatable gear and disposed so that the distance between the points of tangency of their pitch circles exceeds the length of arc of said slot of said rotatable gear; and a flexible arm cantilever-mounted on said holder and adapted to be in permanent contact with the tape material unwinding off said reel.
Claim 3
Dependent Claim
122 words
A machine as claimed in claim 1, wherein said mechanism for centering said core to the axis of rotation of said rotatable gear during wrapping said core, which is mounted on said hollow axle of said carriage, comprises two pairs of rollers installed pair-wise in the horizontal and vertical planes close to each other, said rollers within each pair being spaced apart so that the combination of said two pairs of rollers forms an opening whose geometrical dimensions correspond to the cross-sectional shape of said core wrapped in the tape material, one of the vertical rollers being adapted for displacement in the vertical plane so as to accomodate in said opening one of the branches of said core tensioned by said pulleys.
Claim 4
Dependent Claim
43 words
A machine as claimed in claim 2, wherein said driven and said driving pulleys are equipped with turning levers which move the pulleys in the vertical plane for centering the core to the axis of said rotatable gear during wrapping differently profiled cores.
Claim 5
Dependent Claim
47 words
A machine as claimed in claim 1, wherein the rotation speeds of said gear and said driving pulley are synchronized and during a single revolution of said gear, said driving pulley moves the core through a pitch value equal to the perimeter of the core being wrapped.
References Cited (Backward Citations)
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US1935239A
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |