Transmission element for force or moment measuring devices
AssigneePfister Messtechnik GmbH
InventorHans W. Hafner
Life of this patent
Estimating the term…
Abstract
A force transmission element for force or moment measuring devices includes a block of essentially incompressible elastomeric material for transmission of forces to at least one force or pressure sensor arranged within said block or in close contact with the elastomeric material, wherein said block is closely surrounded by an enclosure deformable in axial force measuring direction, but essentially not expandable in cross section essentially perpendicular thereto. Such force transmission elements may be used in force transmission devices and may be manufactured by at least partially casting the enclosure in the elastomeric material with the enclosure, if desired, serving as a mold.
Claims13
A force transmission element for force and measuring devices, comprising:
- a block of essentially incompressible elastomeric material or transmitting forces;
- at least one force or pressure sensor means for sensing pressure or force arranged in close contact with said elastomeric material;
- said block having a first end surface, a second opposite end surface, and a surrounding perimeter wall surface between said end surfaces;
- said first end surface being constructed to receive a pressure force in an axial direction toward said second surface;
- a perimeter wall enclosure around said surrounding perimeter wall surface;
- said perimeter wall enclosure at a location around said surrounding perimeter wall surface being deformable in said axial direction but essentially not expandable generally perpendicular to said axial direction;
- said enclosure tightly surrounding said block around said surrounding perimeter wall;
- wherein said perimeter wall enclosure around said surrounding perimeter wall is at least partially embedded in said elastomeric material of said block in said surrounding perimeter wall and fixedly adhered thereto.
A force and measuring device, comprising:
- at least one block of essentially incompressible elastomeric material;
- said block having a first end surface, a second opposite end surface, and a surrounding perimeter wall surface between said end surfaces;
- a respective perimeter wall enclosure for each said at least one block around said surrounding perimeter wall surface;
- said perimeter wall enclosure at a location around said perimeter wall surface being deformable in an axial direction between said end surfaces but essentially not expandable generally perpendicular to said axial direction;
- said enclosure tightly surrounding said block around said perimeter wall surface;
- force introduction means for introducing force to said at least one block engaging one of said end surfaces of each said at least one block;
- supporting means for supporting said at least one block engaging an opposite of said end surfaces of each said at least one block;
- at least one pressure sensor means arranged in close contact with said elastomeric material of each said at least one block;
- and
- wherein said enclosure around said surrounding perimeter wall is at least partially embedded in said elastomeric material of said block in said surrounding perimeter wall and fixedly adhered thereto.
Dependencies are inferred from the claim text.