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Alpine ski boot with an energy flap journalled on the shell base

  • US 5,394,628 A
  • Filed: 03/20/1992
  • Issued: 03/07/1995
  • Est. Priority Date: 03/21/1991
  • Status: Expired due to Fees
First Claim
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1. A ski boot comprising:

  • a rigid shell base having a heel zone;

    an upper;

    means for mounting said upper for at least limited pivotal movement about a transverse axis with respect to said shell base to an open position of the boot to enable insertion of a foot of a skier in said open position;

    said upper comprising at least one front portion and at least one rear portion, said rear portion of said upper comprising laterally opposed wings;

    a closure assembly for closing said upper on the lower leg of a skier, said closure assembly comprising a tightening system at least partially encircling said upper, said tightening system including a tensioning element fixed on at least one of said front portion of said upper and said rear portion of said upper; and

    a flexion control device, for both flexion amplitude of movement and flexion magnitude of force in a forward direction, said flexion control device comprising;

    a flexible flap affixed to said shell base in said heel zone;

    said flap extending contiguously beneath said rear portion of said upper, said flap comprising laterally opposed wings extending beneath said laterally opposed wings of said rear portion of said upper, said laterally opposed wings of said rear portion of said upper thereby overlapping said laterally opposed wings of said flap, whereby said rear portion of said upper envelopes said flap and whereby said flap comprises an energy source for said flexion control device; and

    means for enabling said rear portion of said upper to drive said flap (1) along a free pivotal path in a forward direction generally about a journal axis with respect to said shell base and (2) along a flexion path, said flexion path forwardly following said free pivotal path, wherein said free pivotal path is delimited, at a forwardmost point, by a fixed abutment area of said shell base in cooperation with a complementary movable abutment area of said flap in a closed position of the boot at which said upper is directed against the lower leg of the skier, and wherein said flexion path begins, in said forward direction following said cooperation between said fixed abutment area of said shell base and said movable abutment area of said flap.

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