Pod with lockable, extendable arms
First Claim
1. Pod for evacuating persons, including a central mast (1, 8), a support section (9) of which bears ends (31) of arms (30) pivotally mounted so that respective opposed free sections (32) are, in a folded back position substantially axial in relation to an axis of the mast (1, 8), maintained by a removable locking device, wherein the locking device comprises an axially movable crown member (10) disposed at an axial distance from the support section (9), to radially maintain the arms (30) locked, the crown member (10) being held in a locking position, through a hysteresis effect, in which the crown member (10) can be driven, through the expansion of a loaded spring (20), one end of which occupies a counter-pressure position axially fixed in relation to the mast (1, 8), in a movement of recoil from its locking position, only after an additional loading of the spring (20) by an external force in order to release a mobile stop (21) arranged for inhibiting the action of the spring (20) and held in a precarious anti-recoil stop equilibrium by the crown member (10).
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Accused Products
Abstract
The pod comprises a central mast (1, 8), a support section (9) of which bears ends of arms (30) pivotally mounted so that respective opposed free sections (32) are, in a position folded back against the mast (1, 8), maintained by a removable locking device comprising an axially movable crown member (10) for radially locking the arms (30), the crown member (10) being held in locking position through a hysteresis effect in which the crown member (10) can be driven, through the expansion of a loaded spring (20), in a movement of recoil from its locking condition, only after additional loading of the spring (20) by an external force in order to release a mobile stop (21), for inhibiting the action of the spring (20), held in precarious anti-recoil stop equilibrium by the crown member (10).
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Citations
24 Claims
- 1. Pod for evacuating persons, including a central mast (1, 8), a support section (9) of which bears ends (31) of arms (30) pivotally mounted so that respective opposed free sections (32) are, in a folded back position substantially axial in relation to an axis of the mast (1, 8), maintained by a removable locking device, wherein the locking device comprises an axially movable crown member (10) disposed at an axial distance from the support section (9), to radially maintain the arms (30) locked, the crown member (10) being held in a locking position, through a hysteresis effect, in which the crown member (10) can be driven, through the expansion of a loaded spring (20), one end of which occupies a counter-pressure position axially fixed in relation to the mast (1, 8), in a movement of recoil from its locking position, only after an additional loading of the spring (20) by an external force in order to release a mobile stop (21) arranged for inhibiting the action of the spring (20) and held in a precarious anti-recoil stop equilibrium by the crown member (10).
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16. (canceled)
Specification