US3613849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic adjusting device for clutches and brakes
Assignee: LENZE KG MASCHF HANS
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Filing: 1970-03-27
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Granted: 1971-10-19
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Expires: 1990-03-27
Abstract
Abstract In a brake or clutch with electromagnetic release, an automaticadjusting device, compensating for the wear of the friction elements, includes an armature and an adjacent magnetic core both axially slidable on guiding bolts towards and away from said friction elements, said adjusting device further includes locking elements which permit said magnetic core to slide freely on said guide bolts only towards said armature and which permit said armature to slide freely on said guide bolt towards said friction elements, but to slide towards said magnetic core only the distance of the armature stroke.
Inventors
- 👤 Karl Heinz Pape
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:33
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/75; F16D13/757; F16D27/00; F16D27/02; F16D27/04; F16D27/06; F16D55/00; F16D55/24; F16D55/26; F16D55/28; F16D59/00; F16D59/02; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/54; F16D2055/0004; F16D2055/0058; F16D2121/00; F16D2121/18; F16D2121/20; F16D2121/22
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
218 words
In an adjusting device associated with a clutch or brake mechanism to compensate for the wear of friction faces, said mechanism is of the known type having (A) a rotor, (B) friction elements associated with said rotor, (C) a solenoid, (D) a magnetic core receiving said solenoid, (E) an armature disposed and arbitrarily movable between said magnetic core and said friction elements, said armature movable away from said friction elements by a magnetic field generated by said solenoid and (F) resilient means urging said armature into engagement with said friction elements, the improvement comprising, A. at least one stationarily held guiding bolt passing through said armature and said magnetic core, B. a first locking element mounted on said bolt and disposed in said magnetic core, said first locking element permitting displacement of said magnetic core on said guiding bolt solely towards said armature and C. a second locking element mounted on said bolt and disposed in said armature, said second locking element permitting displacement of said armature on said guiding bolt towards said magnetic core solely through a distance corresponding to a desired airgap to be maintained between said armature and said magnetic core in a deenergized condition of said solenoid, said second locking element permitting displacement of said armature on said guiding bolt towards said friction elements.
Claim 2
Dependent Claim
218 words
In an adjusting device associated with a clutch or brake mechanism to compensate for the wear of friction faces, said mechanism is of the known type having (A) a rotor, (B) friction elements associated with said rotor, (C) a solenoid, (D) a magnetic core receiving said solenoid, (E) an armature disposed and arbitrarily movable between said magnetic core and said friction elements, said armature movable away from said friction elements by a magnetic field generated by said solenoid and (F) resilient means urging said armature into engagement with said friction elements, the improvement comprising, A. at least one stationarily held guiding bolt passing through said armature and said magnetic core, B. a first locking element mounted on said bolt and disposed in said magnetic core, said first locking element permitting displacement of said magnetic core on said guiding bolt solely towards said armature and C. a second locking element mounted on said bolt and disposed in said armature, said second locking element permitting displacement of said armature on said guiding bolt towards said magnetic core solely through a distance corresponding to a desired airgap to be maintained between said armature and said magnetic core in a deenergized condition of said solenoid, said second locking element permitting displacement of said armature on said guiding bolt towards said friction elements.
Claim 3
Dependent Claim
26 words
An improvement as defined in claim 1, including a spring, forming said resilient means, disposed about said guiding bolt between said first and second locking elements.
Claim 4
Dependent Claim
40 words
An improvement as defined in claim 1, including a cavity formed in said armature and receiving said second locking element, said cavity is by the width of said desired airgap deeper than the axial dimension of said second locking element.
Claim 5
Dependent Claim
19 words
An improvement as defined in claim 1, including support bolt means moveably securing said armature to said magnetic core.
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |