US4712431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-axis load sensor
Assignee: Individual
•
Filing: 1986-05-27
•
Granted: 1987-12-15
•
Expires: 2006-05-27
Abstract
Abstract A multi-axis load sensor comprises at least one radial plate structure adapted to detect a moment to be produced about its standard axis by a load, and at least one of a parallel plate structure adapted to detect a force to be produced in the direction of its standard axis by the load and another radial plate structure adapted to detect a moment to be produced about its standard axis by the load. The standard axis of the former radial plate structure is neither coincident with nor parallel to the standard axis of the at least one of the parallel plate structure and latter radial plate structure. The above sensor can reduce interactions of detected signals to extremely low levels, while showing good detection sensitivity and large strength and rigidity and making detection characteristic linear.
Inventors
- 👤 Yotaro Hatamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:42
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2218; G01L5/00; G01L5/16; G01L5/161; G01L5/1627; G01L5/22; G01L5/226
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
229 words
A multi-axis load sensor adapted to be connected between a first rigid member (52) (72) and a second rigid member (53) (73) so as to detect the magnitude, direction and point of action of a force to be transmitted between the first and second rigid members (52, 53) (72, 73), wherein said multiaxis load sensor comprises in combination: a radial plate structure having a standard axis which extends in a prescribed direction and is adapted to detect a moment component to be produced about the standard axis by the force, wherein said radial plate structure comprising at least one pair of plates (43, 43') (81, 81') having a thicknesswise dimension smaller than a widthwise dimension thereof and arranged radially with respect to a prescribed point; and at least one parallel plate structure wherein said parallel plate structure comprises at least one pair of plates (33, 33') (77, 77') (84, 84') having a thicknesswise dimension smaller than a widthwise dimension thereof and arranged parallel to each other, said parallel plate structure having a standard axis which extends in a prescribed direction and being adapted to detect a force component to be produced in the direction of the standard axis by the force, and wherein the standard axis of said at least one parallel plate structure is neither coincident with nor parallel to the standard axis of said radial plate structure.
Claim 2
Dependent Claim
229 words
A multi-axis load sensor adapted to be connected between a first rigid member (52) (72) and a second rigid member (53) (73) so as to detect the magnitude, direction and point of action of a force to be transmitted between the first and second rigid members (52, 53) (72, 73), wherein said multiaxis load sensor comprises in combination: a radial plate structure having a standard axis which extends in a prescribed direction and is adapted to detect a moment component to be produced about the standard axis by the force, wherein said radial plate structure comprising at least one pair of plates (43, 43') (81, 81') having a thicknesswise dimension smaller than a widthwise dimension thereof and arranged radially with respect to a prescribed point; and at least one parallel plate structure wherein said parallel plate structure comprises at least one pair of plates (33, 33') (77, 77') (84, 84') having a thicknesswise dimension smaller than a widthwise dimension thereof and arranged parallel to each other, said parallel plate structure having a standard axis which extends in a prescribed direction and being adapted to detect a force component to be produced in the direction of the standard axis by the force, and wherein the standard axis of said at least one parallel plate structure is neither coincident with nor parallel to the standard axis of said radial plate structure.
Claim 3
Dependent Claim
31 words
A multi-axis load sensor as claimed in claim 1, wherein the standard axes of said radial plate structure and said at least one parallel plate structure extend perpendicularly to each other.
Claim 4
Dependent Claim
71 words
A multi-axis load sensor as claimed in claim 1, wherein said radial plate structure and said at least one parallel plate structure each have a structure composed of two sets of paired plates arranged symmetrically; and in a composite structure formed of all of said plate structures, the standard axis of said radial plate structure and the standard axis of said at least one parallel plate structure cross at one point.
Claim 5
Dependent Claim
24 words
A multi-axis load sensor as claimed in claim 3, wherein in the composite structure, said crossing standard axes cross perpendicularly at said one point.
Claim 6
Dependent Claim
84 words
A multi-axis load sensor as claimed in claim 3, wherein the composite structure is formed of a block having a substantially cross-like cross-section defined by a central section and four elongated wing sections, and wherein two sets of paired plates forming said radial plate structure and two sets of paired plates forming said at least one parallel plate structure are formed by through-holes provided respectively in said wing sections in a direction either parallel with or perpendicular to a central axis of said block.
Claim 7
Dependent Claim
77 words
A multi-axis load sensor as claimed in claim 5, wherein the block is equipped with first connecting means arranged between mutually-opposing outer end portions of two of said elongated wing sections and is adapted to connect the sensor to one of the first and second rigid members and second connection means arranged between mutually-opposing outer end portions of the other two of said elongated wing sections and adapted to connect the sensor to the other rigid member.
Claim 8
Dependent Claim
29 words
A multi-axis load sensor as claimed in claim 6, wherein the block, first connection means and the second connection means have an integral structure formed from a single block.
Claim 9
Dependent Claim
66 words
A multi-axis load sensor as claimed in claim 3, wherein the composite structure is formed of a block having a central section defining at least one parallel plate structure by a through-bore which extends along a central axis of the block, and by through-holes each of which extends through the central section from an area between adjacent elongated wing sections of the block to the throughbore.
Claim 10
Dependent Claim
44 words
A multi-axis load sensor as claimed in claim 1, wherein said radial plate structure and said at least one parallel plate structure are formed in a stacked structure with a connection portion interposed therebetween, which stacked structure extends along one of the standard axes.
Claim 11
Dependent Claim
22 words
A multi-axis load sensor as claimed in claim 9, wherein the stacked structure is an integral structure formed from a single block.
Claim 12
Dependent Claim
22 words
A multi-axis load sensor as claimed in claim 3, wherein the composite structure is an integral section formed from a single block.
Claim 13
Dependent Claim
165 words
A multi-axis load sensor adapted to be connected between a first rigid member (52) (72) and a second rigid member (53) (73) so as to detect the magnitude, direction and point of action of a force to be transmitted between the first and second rigid members (52,53) (72,73), wherein said multi-axis load sensor comprises in combination: a first radial plate structure having a standard axis, which extends in a prescribed direction and is adapted to detect a moment component to be produced about the standard axis by the force, wherein said first radial plate structure comprises at least one pair of plates (43,43') (81,81') having a thicknesswise dimension smaller than a widthwise dimension thereof and arranged radially with respect to a prescribed point; and a second radial plate structure of the same type as said first radial plate structure, wherein the standard axis of said second radial plate structure is neither coincident with nor parallel to the standard axis of said first radial plate structure.
Claim 14
Dependent Claim
165 words
A multi-axis load sensor adapted to be connected between a first rigid member (52) (72) and a second rigid member (53) (73) so as to detect the magnitude, direction and point of action of a force to be transmitted between the first and second rigid members (52,53) (72,73), wherein said multi-axis load sensor comprises in combination: a first radial plate structure having a standard axis, which extends in a prescribed direction and is adapted to detect a moment component to be produced about the standard axis by the force, wherein said first radial plate structure comprises at least one pair of plates (43,43') (81,81') having a thicknesswise dimension smaller than a widthwise dimension thereof and arranged radially with respect to a prescribed point; and a second radial plate structure of the same type as said first radial plate structure, wherein the standard axis of said second radial plate structure is neither coincident with nor parallel to the standard axis of said first radial plate structure.
Claim 15
Dependent Claim
30 words
A multi-axis load sensor as claimed in claim 12, wherein the standard axes of said first radial plate structure and said second radial plate structure extend perpendicularly to each other.
Claim 16
Dependent Claim
55 words
A multi-axis load sensor as claimed in claim 12, wherein said first radial plate structure and said second radial plate structure are formed in a stacked structure with a connection portion interposed therebetween, which stacked structure extends along the standard axis of one of said first radial plate structure and said second radial plate structure.
Claim 17
Dependent Claim
68 words
A multi-axis load sensor as claimed in claim 12, wherein said first radial plate structure and said second radial plate structure have a structure composed of two sets of paired plates arranged symmetrically; and in a composite structure formed of all of said plate structures, the standard axis of said first radial plate structure and the standard axis of said second radial plate structure cross at one point.
Claim 18
Dependent Claim
24 words
A multi-axis load sensor as claimed in claim 15, wherein in the composite structure, said crossing standard axes cross perpendicularly at said one point.
Claim 19
Dependent Claim
83 words
A multi-axis load sensor as claimed in claim 15, wherein the composite structure is formed of a block having a substantially cross-like cross section defined by a central section and four elongated wing sections, and two sets of paired plates forming said first radial plate structure and two sets of paired plates forming said second radial plate structure are formed by through-holes provided respectively in said wing sections in a direction either parallel with or perpendicular to a central axis of said block.
Claim 20
Dependent Claim
29 words
A multi-axis load sensor as claimed in claim 17, wherein said first radial plate structure is formed in a stacked structure which extends along one of the standard axes.
Claim 21
Dependent Claim
22 words
A multi-axis load sensor as claimed in claim 18, wherein the stacked structure is an integral structure formed from a single block.
Claim 22
Dependent Claim
22 words
A multi-axis load sensor as claimed in claim 15, wherein the composite structure is an integral structure formed from a single block.
Claim 23
Dependent Claim
76 words
A multi-axis load sensor as claimed in claim 17, wherein the block is equipped with first connecting means arranged between mutually-opposing outer end portions of two of said elongated wing sections and adapted to connect the sensor to one of the first and second rigid members and second connection means arranged between mutually-opposing outer end portions of the other two of said elongated wing sections and adapted to connect the sensor to the other rigid member.
Claim 24
Dependent Claim
30 words
A multi-axis load sensor as claimed in claim 21, wherein the block, the first connection means and the second connection means have an integral structure formed from a single block.
Claim 25
Dependent Claim
208 words
A multi-axis load sensor adapted to be connected between a first rigid member (52) (72) and a second rigid member (53) (73) so as to detect the magnitude, direction and point of action of a force to be transmitted between the first and second rigid members (52, 53) (72, 73) wherein said multi-axis load sensor comprises in combination: a first radial plate structure having a standard axis, which extends in a prescribed direction and is adapted to detect a moment component to be produced about the standard axis by the force, wherein said first radial plate structure comprises at least one pair of plates (43, 43') (81, 81') having a thicknesswise dimension smaller than a widthwise dimension thereof and arranged radially with respect to a prescribed point; and at least one plate structure wherein said at least one plate structure comprises at least one pair of plates (33, 33') (77, 77') (43, 43') (81, 81') having a thicknesswise dimension smaller than a widthwise dimension thereof, said at least one plate structure having a standard axis which extends in a prescribed direction wherein the standard axis of said at least one plate structure is neither coincident with nor parallel to the standard axis of said first radial plate structure.
Claim 26
Dependent Claim
208 words
A multi-axis load sensor adapted to be connected between a first rigid member (52) (72) and a second rigid member (53) (73) so as to detect the magnitude, direction and point of action of a force to be transmitted between the first and second rigid members (52, 53) (72, 73) wherein said multi-axis load sensor comprises in combination: a first radial plate structure having a standard axis, which extends in a prescribed direction and is adapted to detect a moment component to be produced about the standard axis by the force, wherein said first radial plate structure comprises at least one pair of plates (43, 43') (81, 81') having a thicknesswise dimension smaller than a widthwise dimension thereof and arranged radially with respect to a prescribed point; and at least one plate structure wherein said at least one plate structure comprises at least one pair of plates (33, 33') (77, 77') (43, 43') (81, 81') having a thicknesswise dimension smaller than a widthwise dimension thereof, said at least one plate structure having a standard axis which extends in a prescribed direction wherein the standard axis of said at least one plate structure is neither coincident with nor parallel to the standard axis of said first radial plate structure.
Claim 27
Dependent Claim
34 words
A multi-axis load sensor as claimed in claim 23, wherein the standard of axis of said first radial plate structure and that of said at least one plate structure extend perpendicularly to each other.
Claim 28
Dependent Claim
75 words
A multi-axis load sensor as claimed in claim 23, wherein said first radial plate structure and said at least one plate structure are composed of two sets of paired plates arranged symmetrically; and in a composite structure formed of said first radial plate structure and said at least one plate structure, the standard axis of said first radial plate structure and the standard axis of said at least one plate structure cross at one point.
Claim 29
Dependent Claim
22 words
A multi-axis load sensor as claimed in claim 25, wherein the composite structure is an integral structure formed from a single block.
Claim 30
Dependent Claim
40 words
A multi-axis load sensor as claimed in claim 25, wherein in the composite structure, the standard axis of said first radial plate structure and the standard axis of said at least one plate structure cross perpendicularly at said one point.
Claim 31
Dependent Claim
67 words
A multi-axis load sensor as claimed in claim 25, wherein the composite structure is formed of a block (A, B, C, D, E) having a substantially cross-like cross-section, and two sets of paired plates forming said first radial plate structure and two sets of paired plates forming said at least one plate structure are formed by through-holes provided respectively in said block (A, B, C, D, E).
Claim 32
Dependent Claim
30 words
A multi-axis load sensor as claimed in claim 28, wherein said at least one plate structure comprises parallel plate structures constructed in a central section of the block by through-holes.
Claim 33
Dependent Claim
79 words
A multi-axis load sensor as claimed in claim 28, wherein said block is equipped with first connection means arranged between mutually-opposing outer end portions of two elongated wing sections of said block and adapted to connect the sensor to one of the first and second rigid members and second connection means arranged between mutually opposing outer end portions of the other two elongated wing sections of said block and adapted to connect the sensor to the other rigid member.
Claim 34
Dependent Claim
30 words
A multi-axis load sensor as claimed in claim 30, wherein the block, the first connection means and the second connection means have an integral structure formed from a single block.
Claim 35
Dependent Claim
44 words
A multi-axis load sensor as claimed in claim 23, wherein said first radial plate structure and said at least one plate structure are formed in a stacked structure with a connection portion interposed therebetween, which stacked structure extends along one of the standard axes.
Claim 36
Dependent Claim
22 words
A multi-axis load sensor as claimed in claim 32, wherein the stacked structure is an integral structure formed from a single block.
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) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |