초록 ▼

A ski safety binding is provided with a measuring system for determining the occurrence of a dangerous bending moment about a transverse axis 11 passing through the weakest point of the skier\s leg lying generally somewhat above the ankle. In a first embodiment first, second and third measuring tran

A ski safety binding is provided with a measuring system for determining the occurrence of a dangerous bending moment about a transverse axis 11 passing through the weakest point of the skier\s leg lying generally somewhat above the ankle. In a first embodiment first, second and third measuring transducers 14, 15, 12 are strategically arranged between the sole of the ski boot and parts of a binding 33, 35 and the output signals from these measuring transducers are fed to a processing circuit 17 which computes the size of the bending moment about the transverse axis 11 and passes a release signal to an actuation device A to release the binding as soon as a dangerous level is reached. In a modification (FIG. 3) the ski boot is supported in the binding in such a manner that only two pressure measuring transducers are required. A variety of other embodiments are disclosed which show the use of ski bindings incorporating sole plates 24 (FIGS. 7, 8, 9, 10, 11 and 12) and various other arrangements of measuring transducers and processing circuits which enable the binding to be released both during forward and rearward falls and also on the occurrence of torsional loads.

대표청구항 ▼

A ski safety binding adapted to determine the occurrence of a dangerous bending moment at a skier\s leg about a transverse axis passing through substantially the weakest point of the skier\s leg, said point being in the general vicinity of the uppermost portion of a ski boot secured via its sole to

A ski safety binding adapted to determine the occurrence of a dangerous bending moment at a skier\s leg about a transverse axis passing through substantially the weakest point of the skier\s leg, said point being in the general vicinity of the uppermost portion of a ski boot secured via its sole to the ski by the binding, and for forming a release signal when said dangerous bending moment is approached, said safety binding comprising a ski boot securing system; actuating means for releasing said ski boot securing system in response to said release signal; a first measuring transducer arranged between the ski and the sole of the ski boot at a distance (Y) in the longitudinal direction of the ski behind the transverse axis for measuring a first force acting at said distance (Y) on the sole of the ski boot; a second measuring transducer arranged between the ski and the sole of the ski boot at a distance (Z) below said transverse axis and operative in the longitudinal direction of the ski to measure a second force acting in said direction on the sole of the ski boot; a third measuring transducer arranged between the ski and the sole of the ski boot at a distance (X) in the longitudinal direction of the ski in front of the transverse axis for measuring a third force acting at said distance (X) on the sole of the ski boot; and a processing circuit for receiving outputs from said first, second and third measuring transducers and for forming said release signal from the net moment of said first, second and third forces about said transverse axis.