Shear beam load cell with built-in bearing elements

Details Shear beam load cell with built-in bearing elements Shear beam load cell with built-in bearing elements

1983-03-07

1985-05-14

Tarcza, Thomas H.

Weighing scales

Self-positioning

Electrical current generating or modifying

177DIG9, 7386266, G01G 314, G01G 2102

Patent

active

045166463

ABSTRACT:
The invention relates to a load cell based on the shear force principle comprising a measuring body in the form of a beam (1) supported on its outer end regions (2, 3) and loaded at its center region. The beam is provided with strain gages (10, 11, 12 and 13) mounted in intermediate zones between said end and center regions so as to be affected by deformations in the beam material due to bending of the beam (1) caused by a loading force (F). In order to make the load cell insensitive for unfavorable forces which arise due to thermal expansions or the like each of the outer end portions (2, 3) of the measuring body comprises a built-in ring shaped bearing (22,23,24,25,26). This means that the need for additional mounting details required for mounting the load cells has been eliminated. The load could be applied directly to the center region of the measuring body via a simple load coupling means (6).

REFERENCES:
patent: 3695096 (1972-10-01), Kutsay
patent: 3741328 (1973-06-01), Andersson et al.
patent: 4050531 (1977-09-01), Ashbrook
patent: 4095660 (1978-06-01), Johansson
Brochure entitled, "Glass Fabric, Tape, Yarn Coated with Teflon (fluorocarbon resins)," published by Chemical Fabrics Corporation, N. Bennington Rd., Bennington, Vt., Mar. 17, 1970.

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