Patent US4660296A successfully refreshed from Google Patents.
US4660296A
Expired / Lapsed
US
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Sensing head for a measuring machine
Assignee: Mauser Werke Oberndorf GmbH
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Filing: 1985-03-21
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Granted: 1987-04-28
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Expires: 2005-03-21
Abstract
Abstract A sensing head of a measuring machine comprises three straight line guiding systems for respective x, y and Z directions. For weight compensation of each single straight line guiding system, a first spring pair is arranged between a fixed beam element and a beam of the first straight line guiding system. This compensates the weight loading the first straight line guiding system. Between the beam of the first straight line guiding system and a beam of the second straight line guiding system, a second spring pair is arranged which compensates the weight loading the second straight line guiding system. Between the beam of the second straight line guiding system and a beam of the third straight line guiding system, a third spring pair is arranged which compensates the weight loading the third straight line guiding system.
Inventors
- 👤 Otto Klingler
- 👤 Kurt Linder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:09
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/0011; G01B5/0016; G01B5/004; G01B5/008; G01B5/012
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
249 words
A multi-coordinate sensing head for a measuring machine, comprising: a machine beam defining a fixed frame of reference for movements in x, y and z coordinate directions; first straight line guiding means having a first beam suspended from said machine beam and mounted to said machine beam for movement vertically in said z direction; second straight line guiding means having a second beam suspended from said first beam and mounted to said first beam for movement horizontally in said y direction; third straight line guiding means having a third beam suspended from said second beam and mounted to said second beam for movement horizontally in said x direction; a first pair of spring means connected between said machine beam and said first beam on opposite sides thereof in said direction and having a force-deflection characteristic curve which is selected to compensate for all weight suspended from said first beam; a second pair of springs connected between said first and second beams on opposite sides thereof in one of said x and y directions and having a spring characteristic which is selected to compensate for all weight suspended from said second beam a third pair of springs connected between said second and third beams on opposite sides thereof in one of said x and y directions and having a spring characteristic which is selected to compensate for all weight suspended from said third beam; and a sensing member connected to said third beam for contacting a workpiece to be measured.
Claim 2
Dependent Claim
249 words
A multi-coordinate sensing head for a measuring machine, comprising: a machine beam defining a fixed frame of reference for movements in x, y and z coordinate directions; first straight line guiding means having a first beam suspended from said machine beam and mounted to said machine beam for movement vertically in said z direction; second straight line guiding means having a second beam suspended from said first beam and mounted to said first beam for movement horizontally in said y direction; third straight line guiding means having a third beam suspended from said second beam and mounted to said second beam for movement horizontally in said x direction; a first pair of spring means connected between said machine beam and said first beam on opposite sides thereof in said direction and having a force-deflection characteristic curve which is selected to compensate for all weight suspended from said first beam; a second pair of springs connected between said first and second beams on opposite sides thereof in one of said x and y directions and having a spring characteristic which is selected to compensate for all weight suspended from said second beam a third pair of springs connected between said second and third beams on opposite sides thereof in one of said x and y directions and having a spring characteristic which is selected to compensate for all weight suspended from said third beam; and a sensing member connected to said third beam for contacting a workpiece to be measured.
Claim 3
Dependent Claim
27 words
A sensing head according to claim 1, wherein said characteristic curves of said first, second and third pairs of springs is selected to have the same shape.
Claim 4
Dependent Claim
88 words
A spring sensing head according to claim 1, wherein said first straight line guiding means comprises a first pair of leaf springs connected between said machine beam and said first beam, said second straight line guiding means comprising a second pair of leaf springs connected between said first beam and said second beam, said third straight line guiding means comprising a third pair of leaf springs connected between said second beam and said third beam, said leaf springs providing movement in said respective z, y and z directions.
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) | 1990-04-27 | 1990-10-27 | 1991-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-27 | 1994-10-27 | 1995-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-27 | 1998-10-27 | 1999-04-28 | $7700.00 | Window Closed / Lapsed |