Patent US3713330A successfully refreshed from Google Patents.
US3713330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axle test device
Assignee: MTS Systems Corp
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Filing: 1971-01-11
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Granted: 1973-01-30
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Expires: 1991-01-11
Abstract
Abstract An axle test device which will permit three input forces into the test specimen and which is primarily designed to be the front spindle or rear axle of an automobile or other vehicle, so that simulated testing can be carried out. The test device utilizes bell crank actuators which are designed to give a compact test stand without sacrificing performance and which are designed to compensate for cross coupling effects of movements in different planes.
Inventors
- 👤 T Lentz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:31
CPC Classifications
G; G01; G01M; G01M13/00; G01M13/02; G01M13/027
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
348 words
A compact means for loading a specimen in two substantially perpendicular force axes and designed to minimize cross coupling effects between devices loading the specimen, said specimen being mounted for movement along a first force direction of axis, a first linkage means including means to pivotally mount said first linkage means to said specimen on a first pivot axis, a pivotally mounted bell crank means pivotally coupled to said first linkage means, said bell crank having a bell crank arm of length equal to the distance between the pivotal mounting of the bell crank means and the pivotal coupling of the bell crank means to the first linkage means, a first force applying means pivotally connected to said bell crank means to load said first linkage means through said bell crank means, thereby enabling said first linkage means to apply a force to said specimen, said first linkage means being aligned so as to load and thereby move said specimen in the direction of said first force direction axis; a second force generating means including a loading member and a second linkage means pivotally connected to said loading member and to said first linkage means, said second force generating means enabling said second linkage means to apply a second force to said specimen, said second force being applied to said specimen along a force direction axis substantially perpendicular to the first force direction axis; said first linkage means being oriented to receive forces substantially perpendicular to its longitudinal axis lying along the first force direction axis without any substantial yielding in the direction of the received forces, and the relative length of said second linkage means being selected so as to be proportional to the length of the first linkage means and the distance between the pivotal connection of the first linkage means to said specimen, and the second linkage means pivot connection to the first linkage means and the length of the bell crank arm, thereby substantially avoiding cross coupling from the second linkage means when the specimen is loaded and moved by said first linkage means.
Claim 2
Dependent Claim
348 words
A compact means for loading a specimen in two substantially perpendicular force axes and designed to minimize cross coupling effects between devices loading the specimen, said specimen being mounted for movement along a first force direction of axis, a first linkage means including means to pivotally mount said first linkage means to said specimen on a first pivot axis, a pivotally mounted bell crank means pivotally coupled to said first linkage means, said bell crank having a bell crank arm of length equal to the distance between the pivotal mounting of the bell crank means and the pivotal coupling of the bell crank means to the first linkage means, a first force applying means pivotally connected to said bell crank means to load said first linkage means through said bell crank means, thereby enabling said first linkage means to apply a force to said specimen, said first linkage means being aligned so as to load and thereby move said specimen in the direction of said first force direction axis; a second force generating means including a loading member and a second linkage means pivotally connected to said loading member and to said first linkage means, said second force generating means enabling said second linkage means to apply a second force to said specimen, said second force being applied to said specimen along a force direction axis substantially perpendicular to the first force direction axis; said first linkage means being oriented to receive forces substantially perpendicular to its longitudinal axis lying along the first force direction axis without any substantial yielding in the direction of the received forces, and the relative length of said second linkage means being selected so as to be proportional to the length of the first linkage means and the distance between the pivotal connection of the first linkage means to said specimen, and the second linkage means pivot connection to the first linkage means and the length of the bell crank arm, thereby substantially avoiding cross coupling from the second linkage means when the specimen is loaded and moved by said first linkage means.
Claim 3
Dependent Claim
348 words
A compact means for loading a specimen in two substantially perpendicular force axes and designed to minimize cross coupling effects between devices loading the specimen, said specimen being mounted for movement along a first force direction of axis, a first linkage means including means to pivotally mount said first linkage means to said specimen on a first pivot axis, a pivotally mounted bell crank means pivotally coupled to said first linkage means, said bell crank having a bell crank arm of length equal to the distance between the pivotal mounting of the bell crank means and the pivotal coupling of the bell crank means to the first linkage means, a first force applying means pivotally connected to said bell crank means to load said first linkage means through said bell crank means, thereby enabling said first linkage means to apply a force to said specimen, said first linkage means being aligned so as to load and thereby move said specimen in the direction of said first force direction axis; a second force generating means including a loading member and a second linkage means pivotally connected to said loading member and to said first linkage means, said second force generating means enabling said second linkage means to apply a second force to said specimen, said second force being applied to said specimen along a force direction axis substantially perpendicular to the first force direction axis; said first linkage means being oriented to receive forces substantially perpendicular to its longitudinal axis lying along the first force direction axis without any substantial yielding in the direction of the received forces, and the relative length of said second linkage means being selected so as to be proportional to the length of the first linkage means and the distance between the pivotal connection of the first linkage means to said specimen, and the second linkage means pivot connection to the first linkage means and the length of the bell crank arm, thereby substantially avoiding cross coupling from the second linkage means when the specimen is loaded and moved by said first linkage means.
Claim 4
Dependent Claim
348 words
A compact means for loading a specimen in two substantially perpendicular force axes and designed to minimize cross coupling effects between devices loading the specimen, said specimen being mounted for movement along a first force direction of axis, a first linkage means including means to pivotally mount said first linkage means to said specimen on a first pivot axis, a pivotally mounted bell crank means pivotally coupled to said first linkage means, said bell crank having a bell crank arm of length equal to the distance between the pivotal mounting of the bell crank means and the pivotal coupling of the bell crank means to the first linkage means, a first force applying means pivotally connected to said bell crank means to load said first linkage means through said bell crank means, thereby enabling said first linkage means to apply a force to said specimen, said first linkage means being aligned so as to load and thereby move said specimen in the direction of said first force direction axis; a second force generating means including a loading member and a second linkage means pivotally connected to said loading member and to said first linkage means, said second force generating means enabling said second linkage means to apply a second force to said specimen, said second force being applied to said specimen along a force direction axis substantially perpendicular to the first force direction axis; said first linkage means being oriented to receive forces substantially perpendicular to its longitudinal axis lying along the first force direction axis without any substantial yielding in the direction of the received forces, and the relative length of said second linkage means being selected so as to be proportional to the length of the first linkage means and the distance between the pivotal connection of the first linkage means to said specimen, and the second linkage means pivot connection to the first linkage means and the length of the bell crank arm, thereby substantially avoiding cross coupling from the second linkage means when the specimen is loaded and moved by said first linkage means.
Claim 5
Dependent Claim
41 words
The device of claim 1 wherein said second loading member comprises a second pivotally mounted bell crank means, pivotally coupled to said second linkage means, and said second force generating means includes an actuator connected to said second bell crank means.
Claim 6
Dependent Claim
46 words
The combination as specified in claim 1 and a third link, means to apply force to said third link, said third link being coupled to apply force to said first linkage means along an axis substantially mutually perpendicular to the first and second force direction axes.
Claim 7
Dependent Claim
46 words
The device of claim 3 wherein said means to apply force to said third link comprises a third pivotally mounted bell crank means pivotally coupled to said third link, and third force generating means connected to the third bell crank means to load said third link.
Claim 8
Dependent Claim
44 words
The combination as specified in claim 1 wherein the pivot connection of said second linkage means to said first linkage means, the pivot connection of said first linkage means to the bell crank means, and the first pivot axis substantially lie in a plane.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |