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Paramétrages

Paramétrages

1. WO1984000208 - NUMERISEUR DE MESURE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

1. A measurement device comprising:
(a) an elongated, flexible rack which is thin and normally curved in cross-section tp define opposite concave and convex surfaces, and the rack including by a plurality of perforations longitudinally disposed adjacent at least one of its edges; the rack being normally straight, but having the capability to be radially bent toward either said concave or convex surface and the tendency to spring back to its normally straight orientation;
(b) a rotatably mounted sprocket wheel assembly having sprockets for engaging the perforations in said rack and a cylindrical surface for receiving said rack convex surface radially bent thereagainst, said convex surface being normally deformed laterally flat as said perforations engage said sprockets ; and
(c) a position encoder coupled with said sprocket wheel assembly.
2. The device of Claim 1, further including a rotatably mounted shaft, said sprocket wheel assembly and said position encoder being coupled to said shaft, said encoder including means for emitting electrical signals in response to rotational movements of said shaft whereby longitudinal movements of said rack are converted into electrical signals emitted by said encoder.
3. The device of Claim 2, further including a housing for supporting said shaft, said sprocket wheel assembly and said encoder; a rack holder assembly for receiving one end of said rack and for storing a portion of said rack in the form of a coil; and a cursor assembly disposed at the other end of said rack.
4. The device of Claim 3, wherein said rack holder comprises a rotatably mounted central shaft, eans for locking said central shaft, a negator spring coiled about said central shaft and coupling said
central shaft with said rack end, and a pair of disks rotatably mounted on said central shaft; said portion of said rack being coiled about the cylindrical surfaces of said disks.
5. The device of Claim 3 , further including a base and means for rotatably mounting said housing on said base about a vertical axis, and further including a vertical shaft essentially concentric with said vertical axis, said shaft coupled to and rotating with said housing.
6. The device of Claim 5, further including a second encoder coupled to said vertical shaft; said base having means mounting said second encoder; said encoder including means for emitting electrical signals in
response to rotational movements of said vertical shaft and relative rotational movements of said housing with respect to said base.
7. The device of Claims 5 or 6, further including a cursor holder assembly mounted to said base and said cursor holder assembly having means to lock said cursor assembly in a position relative to said base; the shaft position of each said encoder thereby being relative to the position of said cursor assembly locked with said cursor holder assembly.
8. The device of any of the preceding Claims,' further including a guide assembly mounted by an adjustable bracket, and the major access of said bracket being directed toward the axis of said sprocket wheel assembly, said guide assembly including wheels to engage said rack radially bent against the cylindrical surface of said sprocket wheel assembly to thereby assure contact of the rack with the cylindrical surface of the sprocket wheel assembly.

9. The device of any one of Claims 3-8, wherein said cursor assembly includes a measurement indicating member disposed perpendicular to the rack generally at its centerline.
10. The device of Claim 9, wherein said
measurement indicating member is mounted for axial movement along its major axis and having a tapered tip whereby the measurement indicating member may be depresse so that its tapered tip contacts a work piece or work surface.
11. The device of Claim 9, wherein said
measurement indicating member is a pencil or pen.
12. The device of Claim 9, wherein said
indicating member has a tip which embraces generally a ninety degree cutout, and said member further including a rotatable handle; the handle thereby being rotated so that the cutout contacts corners of a work piece .
13. The device of Claim 9, wherein said
indicating member includes a tip which has a diametrical surface whereby the tip may be used to contact inner or outer sides of a work piece whereby its spherical radius may be added or subtracted.
14. The device of any one of Claims 6-13, wherein said housing and base include means for limiting the rotation of said housing with respect to said base, said limiting means permitting at least 180 degrees of relative movement between said housing and said base.
15. The device of Claim 14, further including an electrical switch mounted by said cursor assembly and circuit means for connecting said switch to an electrical connector mounted by said base.
16. The device of Claim 15, wherein said circuit means is disposed along said rack and through said rack holder assembly.
17. The device of Claims 15 or 16, further including a protective cover containing an orifice
* allowing said rack to penetrate therethrough and said orifice thereby permitting said rack at least 180
degrees of rotational movement relative to said base.
18. A system, for. the interconversions of linear and rotary motions, the system comprising:
a perforated rack comprising a flexible band normally curved in cross section and capable of being radially bent and tending to return to its
normal orientation, said band having a multiplicity of perforations disposed along its length and adjacent at least one of its edges;
a rotatably mounted sprocket wheel assembly having a circumferential surface for receiving there- against the normally convex rack surface and sprockets for mating with said perforations as the rack bends around said assembly; the rack being capable of rigid linear movement and also rotational movement about its length where radially bent toward its normally convex surface about said assemblies, the rack there being deformed laterally flat and the edges there falling, rotating laterally flat, and rising with said rotational movement of the perforated rack.
19. An apparatus for producing a perforated rack, said rack being a band normally curved in cross section and capable of being radially bent and returning to its normal position; said apparatus comprising:
mounted upon a surface, adjustable means for guiding the band past said dies, means for sand- wiching the band therebetween, band perforation means cooperating with said dies and variable stop means whereby a multiplicity of perforations may be introduced adjacent at least one of the sides along the length of the band.

OMPI AMENDED CLAIMS
[received by the International Bureau on 15 December 1983 (15.12.83)
original claims 1 to 8 unchanged, claims 13, 14, 17, 18 and 19 amended]

1. A measurement device comprising:
(a) an elongated, flexible rack which is thin and normally curved in cross-section t define opposite concave and convex surfaces, and the rack including by a plurality of perforations longitudinally disposed adjacent at least one of its edges; the rack being normally straight, but having the capability to be radially bent toward either said concave or convex surface and the tendency to spring back to its normally straight orientation;
(b) a rotatably mounted sprocket wheel assembly having sprockets for engaging the perforations in said rack and a cylindrical surface for receiving said rack convex surface radially bent thereagainst, said convex surface being normally deformed laterally flat as said perforations engage said sprockets; and
(c) a position encoder coupled with said sprocket wheel assembly.
2. The device of Claim 1, further including a rotatably mounted shaft, said sprocket wheel assembly and said position encoder being coupled to said shaft, said encoder including means for emitting electrical signals in response to rotational movements of said shaft whereby longitudinal movements of said rack are converted into electrical signals emitted by said encoder.
3. The device of Claim 2, further including a housing for supporting said shaft, said sprocket wheel assembly and said encoder; a rack holder assembly for receiving one end of said rack and for storing a portion of said rack in the form of a coil; and a cursor assembly disposed at the other end of said rack.
4. The device of Claim 3, wherein said rack holder comprises a rotatably mounted central shaft,

OMPI
s means for locking said central shaft, a negator spring coiled about said central shaft and coupling said
central shaft with said rack end, and a pair of disks rotatably mounted on said central shaft; said portion of said rack being coiled about the cylindrical surfaces of said disks.
5. The device of Claim 3, further including a base and means for rotatably mounting said housing on said base about a vertical axis, and further including a vertical shaft essentially concentric with said vertical axis, said shaft coupled to and rotating with said
housing.
6. The device of Claim 5 , further including a second encoder coupled to said vertical shaft; said base having means mounting said second encoder; said encoder including means for emitting electrical signals in
response to rotational movements of said vertical shaft and relative rotational movements of said housing with respect to said base.
7. The device of Claims 5 or 6, further
including a cursor holder assembly mounted to said base and said cursor holder assembly having means to lock said cursor assembly in a position relative to said base; the shaft position of each said encoder thereby being relative to the position of said cursor assembly locked with said cursor holder assembly.
8. The device of any of the preceding Claims,' further including a guide assembly mounted by an adjustable bracket, and the major access of said bracket being directed toward the axis of said sprocket wheel assembly, said guide assembly including wheels to engage said rack radially bent against the cylindrical surface of said sprocket wheel assembly to thereby assure contact of the rack with the cylindrical surface of the sprocket wheel assembly.

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OMPI
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9. The device of any one of Claims 3-8, wherein said cursor assembly includes a measurement indicating member disposed perpendicular to the rack generally at its centerline.
10. The device of Claim 9, wherein said measurement indicating member is mounted for axial movement along its major axis and having a tapered tip whereby the measurement indicating member may be depressed so that its tapered tip contacts a work piece or work surface.
11. The device of Claim 9, wherein said measurement indicating member is a pencil or pen.
12. The device of Claim 9, wherein said indicating member has a tip which embraces generally a
ninety degree cutout, and said member further including a rotatable handle; the handle thereby being rotated so that the cutout contacts corners of a work piece.
13. The device of Claim 9, wherein said indicating member includes a tip which has a circumferential surface the perimeter of which may be used to contact inner or outer sides of a work piece whereby the radius of the circumferential surface may be added or subtracted.
14. The device of any one of Claims 6-13, wherein said housing and base include means for limiting the rotation of said housing with respect to said base, said limiting means permitting generally 180 degrees of relative movement between said housing and said base.
15. The device of Claim 14, further including an electrical switch mounted by said cursor assembly and circuit means for connecting said switch to an
electrical connector mounted by said base.
16. The device of Claim 15, wherein said circuit means is disposed along said rack and through said rack holder assembly.
17. The device of Claims 15 or 16, further including a protective cover containing an orifice allowing said rack to penetrate therethrough and said orifice thereby permitting said rack generally' 180 degrees of rotational movement relative to said base.
18. A system for the interconversions of linear and rotary motions, the system comprising:
a perforated rack comprising a flexible band normally curved in cross section and capable of being radially bent and tending to return to its normal orientation, said band having a multiplicity of perforations disposed along its length and adjacent at least one of its edges;
a rotatably mounted sprocket wheel assembly having a circumferential surface for receiving there-against the normally convex rack surface and sprockets for mating with said perforations as the rack bends around said assembly; the rack being capable of rigid linear movement and also rotational movement where radially bent toward its .normal convex surface about said assembly, the rack there being deformed laterally flat, and the perforations there falling, rotating laterally flat, and rising with said rotational movement of the perforated rack.
19. An apparatus for producing a perforated rack, said rack being a band normally curved in cross section and capable of being radially bent and returning to its normal position; said apparatus comprising:
dies mounted upon a surface, adjustable means for guiding the band past said dies, means for sandwiching the band therebetween, band perforation means cooperating with said dies and variable stop means whereby a multiplicity of perforations may be introduced adjacent at least one of the sides along the length of the band.