Precision balance
AssigneeMettler Instrumente AG
InventorHorst Danhamer
Life of this patent
Estimating the term…
Abstract
Precision balance including a weighing dish supported by a support member which is guided by means of guide arms in such a way that weighing dish performs essentially a vertical movement during weighing. The spacing between the ends of the guide arms is effected by means of a differential screw which changes the width of a slot formed in the frame of the balance. A V-shaped insert is placed in the slot. The insert has linear contact with the sides of the slot. When the portion of the frame located above the slot is being bent by the differential screw, an exactly defined bending line is ensured.
Claims7
A precision balance, comprising a balance frame, a support member, a weighing dish attached to the support member, the support member mounted in the balance so as to perform essentially exclusively a vertical movement during weighing, guide arms attached to the support member, an adjusting device for adjusting the vertical spacing between two guide arm ends, the balance frame defining a slot such that the portion of the frame adjacent the top side of the slot forms an elastically bendable arm, while the bottom side of the slot is rigid, the width of the slot being adjustable by the adjusting device, and an insert placed in the slot, the insert having linear contact with the top side and the bottom side of the slot, wherein the lines of contact of the insert with the top side and the bottom side of the slot extend parallel.
Dependencies are inferred from the claim text.