Land vehicles – Skates – Shoe attaching means
Patent
1989-10-03
1991-11-12
Kashnikow, Andres
Land vehicles
Skates
Shoe attaching means
280623, A63C 908
Patent
active
050642154
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a safety ski binding.
2. Description of the Related Art
A safety ski binding which the measured-value pickups are connected by a multiplexer to a switchable amplifier and a clock generator, has become known from WO 81/00 358-A1. In this case, the amplifier controls a voltage-controlled oscillator, the output signals of which are counted in assigned counters, which emit a release signal to the triggering device if a certain counter reading is exceeded. In this case, the signals of the voltage-controlled oscillator are passed in each case to the counters assigned to the individual-measured pickups, the corresponding switching being performed by the clock generator.
Although this achieves a triggering speed dependent on the magnitude of the forces occurring, it entails the disadvantage that, even under extreme loads, a certain delay in the driving of the triggering device cannot be avoided. Thus, in such a case, due to the high signal level which the measured-value pickups supply, although the oscillator, controlled in its frequency, operates with a correspondingly high frequency, the driving of the triggering device cannot begin until the intended counter reading which is fixed for a triggering is reached. In extreme cases, however, this may lead to a delayed triggering and consequently to a considerable risk of injury for the skier.
SUMMARY OF THE INVENTION
The object of the invention is to avoid these disadvantages and to propose a safety ski binding in which the triggering characteristic can be adapted to the loadability of the user and in which an undelayed triggering is possible in the event of correspondingly high forces acting on the skier or the binding.
This is achieved according to the invention by the fact that the threshold circuit has, in a way known per se, at least two outputs controlled as a function of different threshold values, of which the output controlled by the highest threshold value drives the triggering device without delay and of which the second output, controlled by a lower threshold value, is connected to the counter of the timing circuit.
It is achieved by these measures that, in the case of a certain high level of the output signal of the transducer, the triggering device is driven without delay, whereas, in the case of signal values of the transducer which lie between a lower threshold, activating the timing circuit and the mentioned uppermost threshold, the triggering device is activated with a time delay, variable as a function of the magnitude of the signal supplied by the measured-value pickup. This ensures on the one hand an undelayed triggering of the binding under very high loads and on the other hand a load-dependently delayed triggering under loads in a certain range, as a result of which on the one hand false triggerings are avoided and on the other hand a particularly high degree of safety is ensured even under extreme loads.
In this context, it may also be provided that the threshold circuit is connected directly to a release input of the counter and to a reset input of the counter via an inverter and, if appropriate, to a monostable flip-flop, connected downstream of the latter and having a short operating time.
It is thus ensured that the counter is only activated when a signal exceeding the one threshold value occurs on the threshold circuit and a resetting of the counter takes place as soon as the signal drops below this level again, the flip-flop supplying a corresponding needle pulse.
In order to create defined conditions in particular in the case of very small and prolonged output signals of the transducer or transducers, according to a further feature of the invention it may be provided that the oscillator, variable in its frequency, can be changed between a frequency other than zero and a maximum frequency.
It is thus ensured that, in the case of loads just above the activation threshold of the counter, a triggering of the binding takes place within a certain time, essentia
REFERENCES:
patent: 4387307 (1983-06-01), D'Antonio
Ferdinand Platter
Paul Rosenich
Camby Richard
Kashnikow Andres
TMC Corporation
LandOfFree
Safety ski binding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety ski binding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety ski binding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1009263