Patent ID: 6354159
Filing Date: 2002-03-12
Classification: G01G

Abstract:
Overload protection means for the load receiving means of a force-measuring device, comprising:(a) an integral monolithic generally rectangular body containing a plurality of material removed portions that define in said body: (1) a first body portion (56); (2) a second body portion (57) horizontally arranged relative to said first body portion; and (3) first parallelogram guide means (58, 59) guiding said first body portion for parallel displacement in the vertical direction relative to said second body portion; (b) means (53, 82, 84; 178) applying to said first body portion a load force that is to be measured: (c) resilient means (78) opposing downward displacement of said first portion by said load force relative to said second body portion; (d) said first and second body portions of said monolithic body including cooperating integral shoulder means (76, 77; 176, 177) for limiting the upward displacement of said first body portion relative to said second body portion; and (e) second guide means for guiding said second body portion for parallel displacement relative to a stationary portion (28) of said force measuring device, said second guide means including a pair of parallelogram guides (5, 5â€²) that extend lengthwise in the direction transverse to the force to be measured and are rigid in their longitudinal direction, each of said parallelogram guides being connected at one end with said second body portion and at the opposite end to said stationary portion of the force-measuring device; and means coupled with said second body portion and supported by said stationary portion for transmitting the force to be measured to a force measuring transducer.