Patent US4298193A successfully refreshed from Google Patents.
US4298193A
Expired / Lapsed
US
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Upper mounting unit for MacPherson strut assembly
Assignee: Ford Motor Co
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Filing: 1979-10-10
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Granted: 1981-11-03
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Expires: 1999-10-10
Abstract
Abstract An upper mount for a MacPherson strut assembly having a mounting plate with an upper and lower elastomeric pad mounted thereto with retaining plates clamping the two pads and having two outer elastomeric isolators above and below the two retaining plates and having a third and fourth retaining plate clamping the outer two elastomeric pads to provide an isolating upper mount which isolates rebound vibrations, jounce vibrations and side load vibrations.
Inventors
- 👤 Jack W. Mourray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:48
CPC Classifications
B; B60; B60G; B60G15/00; B60G15/02; B60G15/06; B60G15/067; B60G15/068; F; F16; F16F; F16F9/00; F16F9/32; F16F9/54; B60G2204/00; B60G2204/10; B60G2204/12; B60G2204/128
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
179 words
A mounting unit for the upper end of a MacPherson strut comprising; a substantially horizontal mounting plate with a central aperture therethrough; a first elastomeric isolator abutting a lower side of the mounting plate about said aperture and secured to said plate; a second elastomeric isolator juxtaposed below said first isolator; a third elastomeric isolator abutting an upper side of the mounting plate about said aperture and secured to said mounting plate; said second elastomeric isolator having a different compression rate than said first isolator; said mounting plate rigidly mountable to a motor vehicle and said isolators aligned such that a passage is formed through said mounting unit to provide an outer end of a piston rod to extend therethrough and be mounted thereto such that upon jounce of a bumper, an upper end of a cylinder of a MacPherson strut becomes juxtaposed with said second isolator to compress one of said first and second isolators and then compress said other of said first and second isolators and upon rebound, a compressive force is applied to said third isolator.
Claim 2
Dependent Claim
179 words
A mounting unit for the upper end of a MacPherson strut comprising; a substantially horizontal mounting plate with a central aperture therethrough; a first elastomeric isolator abutting a lower side of the mounting plate about said aperture and secured to said plate; a second elastomeric isolator juxtaposed below said first isolator; a third elastomeric isolator abutting an upper side of the mounting plate about said aperture and secured to said mounting plate; said second elastomeric isolator having a different compression rate than said first isolator; said mounting plate rigidly mountable to a motor vehicle and said isolators aligned such that a passage is formed through said mounting unit to provide an outer end of a piston rod to extend therethrough and be mounted thereto such that upon jounce of a bumper, an upper end of a cylinder of a MacPherson strut becomes juxtaposed with said second isolator to compress one of said first and second isolators and then compress said other of said first and second isolators and upon rebound, a compressive force is applied to said third isolator.
Claim 3
Dependent Claim
29 words
A mounting unit defined in claim 1 wherein; said first second and third elastomeric isolators are each annular elastomeric rings coaxially mounted about a common axis of said passage.
Claim 4
Dependent Claim
52 words
A mounting unit as defined in claim 2 wherein; said first and second isolators are interfitted along a vertical extent and said first isolator is mounted to said mounting plate along a vertical extent such that side load forces and side ways directed vibrations load the first and second isolator in compression.
Claim 5
Dependent Claim
47 words
A mounting unit as defined in claim 2 or 3 wherein; said first and second annular isolators are secured to each other and said first isolator is secured to said mounting plate such that side load forces exerted thereon load the first and second isolators in shear.
Claim 6
Dependent Claim
26 words
A mounting unit as defined in claim 4 wherein; the shear rate of said first isolator is different than the shear rate of said second isolator.
Claim 7
Dependent Claim
37 words
A mounting unit as defined in claim 5 further comprising; a fourth annular elastomeric isolator coaxially mounted above said third annular isolator and juxtaposed therewith; said fourth isolator having a different compression rate than said third isolator.
Claim 8
Dependent Claim
120 words
A mounting unit as defined in claim 6 wherein; said first isolator is bonded to the lower side of said mounting plate; a first retainer plate between said first and second isolators has vertically and radially extending opposing surfaces with one surface abutting said first isolator and its opposing surface abutting said second isolator; said plate has an aperture therethrough aligned with said passage; said third isolator is bonded to the upper side of said mounting plate; a second retainer plate between said third and fourth isolators has vertically and radially extending opposing surfaces with one surface abutting said third isolator and its opposing surface abutting said fourth isolator; said second plate having an aperture therethrough aligned with said passage.
Claim 9
Dependent Claim
28 words
An upper mount as defined in claim 7 wherein; said first and second retainer plates are positioned to preload said first and third isolators in shear and compression.
Claim 10
Dependent Claim
64 words
An upper mount as defined in claim 8 wherein; said first and second retainer plates are secured a fixed distance from each other such that as said first retainer plate moves closer to said mounting plate and loads said first isolator further in compression, said second retainer plate is moved away from said mounting plate and said second isolator is decompressed and vice versa.
Claim 11
Dependent Claim
43 words
An upper mount as defined in claim 7 wherein; said mounting plate has a plurality of smaller apertures circumferentially spaced about its central aperture; said first and third elastomeric isolators extend into said smaller apertures and are joined together through said smaller apertures.
Claim 12
Dependent Claim
63 words
An upper mount as defined in claim 8 further comprising; a third retainer plate abutting the lower side of said second isolator; a fourth retainer plate abutting the upper side of said fourth isolator; said third and fourth retainer plates clamped together to preload said isolators in shear and compression; said third and fourth plates each having an aperture aligned with said passage.
Claim 13
Dependent Claim
61 words
An upper mount as defined in claim 11 wherein; said third and fourth retainer plates are secured a fixed distance from each other such that as said third plate moves closer to said second plate and loads said fourth isolator further in compression, said third plate moves away from said first plate and said second isolator is decompressed and vice versa.
Claim 14
Dependent Claim
63 words
An upper mount as defined in claim 11 wherein; said fourth retainer plate has downwardly depending flanges to form a cup sized to receive a top end of a cylinder of a McPherson strut; a fifth annular elastomeric isolator, with a defined aperture aligned with said passage, positioned in said cup; said fifth isolator having a lower compression rate than said other isolators.
Claim 15
Dependent Claim
39 words
A mounting unit as defined in claim 2 or 3 further comprising; a fourth annular elastomeric isolator coaxially mounted above said third annular isolator and juxtaposed therewith; said fourth isolator having a different compression rate than said third isolator.
Claim 16
Dependent Claim
44 words
A mounting unit as defined in claim 4 wherein; said mounting plate has a vertically extending curved lip about said central aperture therethrough; said lip having one side bonded to said first annular isolator and a second side bonded to said third annular isolator.
Claim 17
Dependent Claim
43 words
An upper mount as defined in claim 15 wherein; said mounting plate has a plurality of smaller apertures circumferentially spaced about its central aperture; said first and third elastomeric isolators extend into said smaller apertures and are joined together through said smaller apertures.
Claim 18
Dependent Claim
91 words
A mounting unit as defined in claim 15 further comprising; a first retainer plate between said first and second isolators having a frusto-conical vertically extending section with opposing surfaces abutting said first and second isolator respectively; a second retainer plate on top of said third elastomeric isolator having a frusto-conical vertically extending section with a lower surface of said section abutting said third isolator; said first and second retainer plates fixed to each other and positioned such that a preload in compression is exerted upon the first and third elastomeric isolators.
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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) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |