US3670980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling the contact pressure between a contact roller and a winding up roll in winders
Assignee: Nishimura Seisakusho Co Ltd
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Filing: 1970-07-28
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Granted: 1972-06-20
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Expires: 1990-07-28
Abstract
Abstract A apparatus for controlling the contact pressure between a contact roller and a winding roller of winding machines includes means for supporting the contact roller in such rigid manner as substantially considered to be a fixed support, means for detecting at the contact roll the contact pressure between the contact roller and winding roller and means for urging the winding roller toward the contact roller to provide a contact pressure therebetween. The pressure detected at the contact roller by the pressure detecting means is fed to a pneumatic control means which operates in response to the detected pressure to automatically regulate the contact pressure applied through the winding roller at a predetermined level.
Inventors
- 👤 Hideo Mukai
- 👤 Kimihiro Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:18
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H18/00; B65H18/08; B65H18/10; B65H18/26; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/413; B65H2301/4135; B65H2301/41358; B65H2404/00; B65H2404/40; B65H2404/43
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
235 words
In a winder having a winding roller for winding material thereon, a contact roller adapted to be constantly in contact with the winding roller during the operation of the winder, the improvement comprising: means for rigidly supporting the contact roller; means for mounting the contact roller supporting means to afford limited movement of the contact roller and deflection of the contact roller supporting means as the diameter of the winding roller increases; means for moving the winding roll toward and away from the contact roller; a flapper fixedly formed on a surface of the support means for the contact roller; a stationary body aligned in spaced ralationship with the flapper; an air supply port in the stationary body terminating at the surface of the stationary body opposite the flapper; a source of pressurized air; means to deliver the pressurized air to the air supply port to provide a constant predetermined pressure at the space between the flapper and the surface of the stationary body opposite the flapper; a pressure detecting port in the stationary body; and means for analyzing pressure change at the pressure detecting port and activating the means for moving the winding roll with respect to the contact roller until the contact roller has moved to a position wherein the air pressure in the space between the flapper and the surface of the stationary body opposite the flapper is at the predetermined pressure.
Claim 2
Dependent Claim
235 words
In a winder having a winding roller for winding material thereon, a contact roller adapted to be constantly in contact with the winding roller during the operation of the winder, the improvement comprising: means for rigidly supporting the contact roller; means for mounting the contact roller supporting means to afford limited movement of the contact roller and deflection of the contact roller supporting means as the diameter of the winding roller increases; means for moving the winding roll toward and away from the contact roller; a flapper fixedly formed on a surface of the support means for the contact roller; a stationary body aligned in spaced ralationship with the flapper; an air supply port in the stationary body terminating at the surface of the stationary body opposite the flapper; a source of pressurized air; means to deliver the pressurized air to the air supply port to provide a constant predetermined pressure at the space between the flapper and the surface of the stationary body opposite the flapper; a pressure detecting port in the stationary body; and means for analyzing pressure change at the pressure detecting port and activating the means for moving the winding roll with respect to the contact roller until the contact roller has moved to a position wherein the air pressure in the space between the flapper and the surface of the stationary body opposite the flapper is at the predetermined pressure.
Claim 3
Dependent Claim
108 words
Apparatus as in claim 1 wherein the means for mounting the contact roller supporting means to afford limited movement of the contact roller and deflection of the contact roller supporting means is comprised of a spherical support surface structure, a surface in the contact roller supporting means formed to mate with the contour of the spherical support surface, a fixed support to prevent deflection of the contact roller supporting means in all planes but one and a coil spring arranged to allow deflection of the contact roller support means after a predetermined force is imposed thereon in the plane in which the fixed support does not prevent deflection.
Claim 4
Dependent Claim
60 words
Apparatus as in claim 1 wherein the means for moving the winding roll toward and away from the contact roller is comprised of a bellcrank, one arm of which mounts the center of the winding roll and a piston actuation, the piston rod of which is attached, at its end opposite the piston, to the other arm of the bellcrank.
Claim 5
Dependent Claim
30 words
Apparatus as in claim 3 wherein the means for analyzing the pressure at the pressure detecting port and activating the means for moving the winding roll is a servo valve.
Claim 6
Dependent Claim
39 words
Apparatus as in claim 1 wherein the means for supplying pressurized air to the air supply port is comprised of a conduit from the air supply source to the pressure supply port and pressure reducing valves in the conduit.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |