Land vehicles – Skates – Shoe attaching means
Patent
1984-11-30
1986-11-25
Love, John J.
Land vehicles
Skates
Shoe attaching means
280626, 280632, 280634, A63C 908
Patent
active
046244735
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to safety ski bindings, and in particular to bindings capable of releasing a ski boot secured in the binding in response to both vertical forces and to transverse forces and moments.
There are many ski bindings known in the art for securing a skier's boot to the ski on which the binding is mounted, and for releasing the boot when forces or moments of predetermined values are detected. There has been a continuing effort to devise such bindings which are effective in operation, which are rugged enough to withstand the environment in which they are used, and which are economical to manufacture. Many known bindings are complex assemblies of parts which are vulnerable to malfunction. Other bindings are effective with regard to one type of force such as vertical forces (relative to the plane of the ski), but are less effective with regard to other forces and moments, such as those applied transversely in the plane of the ski Thus, bindings are known having a heel piece which rotates about a horizontal axis perpendicular to the longitudinal axis of the ski on which the binding is mounted from a lower, locked position to a raised open position in response to high vertical forces, the heel piece being mounted on a forwardly biassed carriage to provide the binding with a step-in capability which automatically cocks the binding when a boot is placed therein. This forward bias can limit the effectiveness of the binding in response to transverse forces or moments, since the forward bias is normally strong and difficult to overcome.
The foregoing problems are also present in electronic ski bindings which have been disclosed in the art. Electronic bindings generate electrical signals corresponding to sensed forces and moments, and these signals are processed and used to effect energization or deenergization of coils and the like when they exceed predetermined threshold values, to cause the actuation of a release member such as a solenoid. The mechanical device for opening the binding warrants the same considerations discussed above.
Commonly assigned German patent application No. P 31 46 318.5 discloses another ski binding wherein both vertical and transverse forces are treated by the binding.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an improved rugged and effective safety ski binding.
Another object of the invention is to provide a safety ski binding capable of simplified and economical construction.
A further object of the invention is to provide a safety ski binding which effectively releases a ski boot therefrom in response to forces and moments applied in both the vertical direction, and in the transverse direction in the plane of the ski.
Yet a further object is the provision of a binding of the foregoing type which uses a relatively small number of springs.
Another object of the invention is to provide a release mechanism having the preceding characteristics which can be employed in an electronic binding having an electronic control system.
A further object is to provide a safety ski binding having the foregoing characteristics which can be mounted on a ski in the conventional manner.
Other objects will be apparent from the description to follow and from the appended claims
These objects are achieved according to the preferred embodiment of the invention by the provision of a ski binding having a carriage biased on a base plate in the forward direction by a strong spring, a rotatable soleholder for engaging the heel of a boot mounted on the carriage, a locking lever mounted on the carriage for releasably locking the sole holder in its closed position, a locking lever spring for both biasing the locking lever to its locking position and for biasing the carriage rearwardly, a locking pawl for controlling the condition of the locking lever, a release member for effecting release of the binding, and a connecting mechanism interconnecting the release member and the locking pawl. In response to the foregoing transverse forces and mom
REFERENCES:
patent: 4089541 (1978-05-01), Marata
patent: 4444413 (1984-04-01), Richert et al.
patent: 4494767 (1985-01-01), Campillo et al.
Hafner Josef
Knabel Walter
Scheer Martin
Camby Richard
Hochberg D. Peter
Love John J.
Marker International Company
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