Load cell having a flexure connector
First Claim
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1. In a load cell having a fixed support member, a movable support member, and a pair of links connecting the fixed support member and the movable support member to form a parallelogram, a first beam extending from the fixed support member, a second beam extending from the movable support member and a longitudinally connecting member between the first beam and second second, the connecting member comprising:
- a cylindrical member having a central portion and end portions on opposite longitudinal ends of the central portion, the end portions of the cylindrical member having reduced diameters, means for engaging one end of one of said cylindrical member with one of said beams, the end of the other of said cylindrical member extending through the other of said beams and means for connecting said other end to said other beam.
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Accused Products
Abstract
A load cell having a flexure connector that provides connection between the load beam of the load cell and the sensing beam. The structure has a low profile and provides an adjusting feature that compensates for the variations in resistance of the load cell strain gages.
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Citations
17 Claims
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1. In a load cell having a fixed support member, a movable support member, and a pair of links connecting the fixed support member and the movable support member to form a parallelogram, a first beam extending from the fixed support member, a second beam extending from the movable support member and a longitudinally connecting member between the first beam and second second, the connecting member comprising:
a cylindrical member having a central portion and end portions on opposite longitudinal ends of the central portion, the end portions of the cylindrical member having reduced diameters, means for engaging one end of one of said cylindrical member with one of said beams, the end of the other of said cylindrical member extending through the other of said beams and means for connecting said other end to said other beam. - View Dependent Claims (2, 3, 4, 12)
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5. In a load cell having a fixed support member, a movable support member, and a pair of links connecting the fixed support member and the movable support member to form a parallelogram, a sensing beam extending from the fixed support member, a load beam extending from the movable support member and a longitudinally connecting member providing connector between the sensing beam and the load beam, the connecting member comprising:
a cylindrical flex link having a central portion intermediate reduced portions having diameters less than the diameter of said central portion, means for engaging one of said reduced portions with said sensing beam, the other of said reduced portions extending through said load beam and means for connecting said other reduced portion to said load beam. - View Dependent Claims (6, 7)
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8. In a load cell having a fixed support member, a movable support member, and a pair of links connecting the fixed support member and the movable support member to form a parallelogram, a sensing beam extending from the fixed support member, a load beam extending from the movable support member and a longitudinally connecting member providing connection between the load beam and sensing beam, the improvement comprising:
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an opening within the load beam, an opening within the sensing beam, a cylindrical member having a cylindrical central portion intermediate and integral with two cylindrical portions, said two reduced cylindrical portions having diameters less than the diameter of said central portion, one end of one of said cylindrical member being received within the opening of said sensing beam, means for connecting said one end of said cylindrical member to said sensing beam, and the end of the other of said reduced portions extending through the opening of said load beams and being connected thereto.
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9. In a load cell having a fixed support member, a movable support member, and a pair of links connecting the fixed support member and the movable support member to form a parallelogram, a first beam extending from the fixed support member, a second beam extending from the movable support member and a longitudinally connecting member between the first beam and second second, the connecting member comprising:
a cylindrical member having one end engaging one of the beams and the other end extending through the other of said beams and being connected thereto. - View Dependent Claims (10, 11, 13)
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14. In a load cell having a fixed support member, a movable support member, and a pair of links connecting the fixed support member and the movable support member to form a parallelogram, a sensing beam extending from the fixed support member, a load beam extending from the movable support member and a longitudinally connecting member between the load beam and sensing beam, the improvement comprising:
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an opening within the load beam, said connecting member being a cylindrical member having one end in engagement with the sensing beam, the end of the other end extending through the opening of said load beam, and means for connecting said other end to the load beam. - View Dependent Claims (15, 16, 17)
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Specification