FORCE LIMITER, DEVICE AND METHOD OF LIMITING CONTACT FORCE PROVIDED WITH SUCH A FORCE LIMITER

摘要

A force limiter for limiting the force between two articles getting into contact with each other, which force limiter comprises a control member (11) displaceable with respect to a holder (5), which member is pneumatically pre-stressed with a force which is substantially independent of the relative position between the holder (5) and the control member (11). The force limiter can be used in devices, in which after stopping a drive the contact force between the driven first article and the second article in contact therewith must not exceed a given threshold value. More particularly the use in ultrasonic deformation devices is considered.