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US 6,792,868 B2Granted
Lock for igniter plug lever
AssigneeEtienne Lacroix Tous Artifices S.A.
InventorsFrédéric Teilhol, Guy Valembois, Régis Riffet, Jean Baricos
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AssigneeEtienne Lacroix Tous Artifices S.A.
InventorsFrédéric Teilhol, Guy Valembois, Régis Riffet, Jean Baricos
Estimating the term…
The invention concerns an igniter plug for a pyrotechnic device, in particular a hand-launch or mechanical launch grenade, comprising a body (104) provided with a control mechanism including a fly-off lever (101) and a percussion mechanism (128) co-operating with a primary pyrotechnic module (105) for initiating the charge (119) of the associated device. The invention is characterised in that it further comprises a lock (150) engaged with the lever (101), in storage position, to prevent the fly-off lever (101) from moving towards its release position, the lock (150) being configured to impose, when the igniter plug is activated, an initial movement of the lever (101) countering its displacement required for releasing the percussion mechanism (128), so as to disengage the lock (150) and the fly-off lever (101).
An ignitor plug for a pyrotechnical device, in particular a grenade for hand or mechanical launching, the device comprising a body (104) fitted with a control mechanism comprising a trigger lever (101) and a percussion mechanism (128) co-operating with a primary pyrotechnical module (105) for initiating a charge (119) of the pyrotechnical device, wherein the plug comprises a latch (150) which engages the lever (101) in a storage position to prevent free displacement of the trigger lever (101) towards a release position, the latch (150) being so shaped that during initial operation of the ignitor plug said latch requires the lever (101) to be moved initially in an opposite direction to that required for releasing the percussion mechanism (128) in order to disengage the latch (150) from the trigger lever (101).
An ignitor plug for a pyrotechnical device, in particular a grenade for hand or mechanical launching, the device comprising a body (104) fitted with a control mechanism comprising a trigger lever (101) and a percussion mechanism (128) co-operating with a primary pyrotechnical module (105) for initiating a charge (119) of the pyrotechnical device and axially displaceable inside the body (104) towards the charge (119), and means (102) for holding the primary pyrotechnical module (105) spaced axially away from the charge (119) in an initial, safe position, characterized by the fact that the means (102) for holding the primary pyrotechnical module (105) axially apart from the charge (119) comprise a latch (150) urged resiliently away from the initial, safe position in which the latch (150) interferes with a travel path of the primary pyrotechnical module (105) to prevent the primary pyrotechnical module (105) from moving towards the charge (119), towards a release position in which the latch (150) lies off the travel path of the primary pyrotechnical module (105), the latch (150) being initially held in the initial, safe position by at least two mechanical blocking means (101, 126) such that release of the latch (150) requires both of the blocking means (101, 126) to be manipulated.
Dependencies are inferred from the claim text.