Patent ID: 7712705
Filing Date: 2010-05-11
Classification: B64C,B64D

Abstract:
1. A deceleration device for deceleration of a cockpit door, comprising: a spool reel carrying a belt being wound up on the spool reel; an elevating spindle being driven by the spool reel when the belt is being retracted from the spool reel; at least one collet screwed to the elevating spindle; at least one spring assembly being installed between the collet and a fixed bearing portion of the deceleration device; and at least one energy absorbing tube surrounding the elevating spindle to come prior into contact with the fixed bearing portion than the at least one collet, to dissipate further energy by deformation of the at least one energy absorbing tube; wherein the at least one collet is screwed towards the fixed bearing portion by retraction of the belt from the spool reel, thereby compressing only the spring assembly in a first phase, and both the spring assembly and the at least one energy absorbing tube in a second phase, whereby a reaction load is generated by the spring assembly counteracting the retraction of the belt; and wherein the at least one spring assembly and the at least one energy absorbing tube are arranged in parallel between the collet and a fixed bearing portion.