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US 4,121,854 AGranted
Electro-pyrotechnic unlocking device, in particular for a safety fixture for a ski
AssigneeEtablissements Ruggieri
InventorJulien Cornu
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AssigneeEtablissements Ruggieri
InventorJulien Cornu
Estimating the term…
The device is automatically re-armed and comprises at least one pyrotechnic jack and a push-member actuated by the jack for unlocking the fixture. A loader carries a plurality of pyrotechnic charges for actuating the jack in succession. A device is provided for igniting the charges and a device is provided for positioning the charges of the loader with respect to the push-member and with respect to the device for igniting the charges. The present invention relates to an automatically re-armed electro-pyrotechnic unlocking device and more particularly, although not exclusively, to such a device applied to a safety fixture or binding for a ski. Safety fixtures are known which are opened by a pyrotechnic charge which is ignited by means responsive to critical exterior influences when said influences appear or act. An object of the invention is to provide an unlocking device of the aforementioned type which is relatively simple in construction and easy to use. According to the invention, there is provided an automatically re-armed and reloaded electro-pyrotechnic unlocking device in particular for a safety ski binding, comprising at least one gas operated mechanical assembly for unlocking said binding, a loader, a plurality of pyrotechnic charges for actuating said assembly in succession and carried by the loader, means for igniting the charges, and means for automatically positioning the charges of the loader with respect to said assembly and with respect to said means for igniting the charges.
An automatically re-armed and reloaded electro-pyrotechnic unlocking device in particular for a safety ski binding, comprising a body, at least one gas operated mechanical assembly for unlocking said binding, a loader movably mounted relative to said body, a plurality of pyrotechnic charges for actuating said assembly in succession and carried by the loader, means for igniting the charges, and means for automatically positioning the charges of the loader with respect to said assembly and with respect to said means for igniting the charges, wherein said mechanical assembly comprises a piston and cylinder unit associated with one of the charges carried by the loader and provided with a push-member which when actuated by the gas releases the binding.
A safety binding in combination with an automatically re-armed and reloaded electro-pyrotechnic unlocking device, comprising a body, at least one gas operated mechanical assembly for unlocking said binding, a loader movably mounted relative to said body, a plurality of pyrotechnic charges for actuating said assembly in succession and carried by the loader, means for igniting the charges, and means for automatically positioning the charges of the loader with respect to said assembly and with respect to said means for igniting the charges, wherein said mechanical assembly comprises a piston and cylinder unit associated with one of the charges corried by the loader and provided with a push-member which when actuated by the gas releases the binding.
Dependencies are inferred from the claim text.