Ski boot

Claim 2

In a ski boot comprising a boot upper, an outsole secured to said upper, a rigid insole hingedly connected near its toe end to said outsole, a lifting device built-in in the said outsole in the heel region thereof, the said lifting device comprising a rotatable cam cooperating with the said insole for lifting and lowering it, and manually operable rotary transmission means operatively connected at one end to said cam, and extending at the other end out to the outer peripheral side of the said outsole such that said other end is readily accessible when the boot outsole is bearing against a surface.

Claim 3

A ski boot according to claim 1, in which the said cam is in contact with the intermediate portion of a lever arm, one end of which arm is fulcrumed to a fixed part of the said device, whilst the other end is in sliding abutment with the said insole.

Claim 4

A ski boot according to claim 2, in which the said end of the said lever arm which is into abutment with the insole is T shaped.

Claim 5

A ski boot according to claim 1, in which the said cam is keyed on a pivot pin rotatably supported by one fixed part of the said device, and the said manually operable transmission means comprise a tubular sleeve keyed to one end of said pin, an operating shaft in engagement with said sleeve, the said shaft being axially slidable but non rotatable with respect to said sleeve, and manually operable control means connected to said shaft.

Claim 6

A ski boot according to claim 4, in which means are provided for axially adjusting said manually operable control means with respect to said sleeve.

Claim 7

In a ski boot comprising a boot upper, an outsole secured to said upper, a rigid insole hingedly connected near its toe end to said outsole, a lifting device built-in in said outsole in the heel region thereof, the said lifting device comprising a housing, a pivot pin rotatably supported by said housing, a cam keyed on said pivot pin, a lever arm journalled at one end in said housing, said lever arm being in contact with its intermediate portion with the said cam, and being further in sliding contact with its other end with the lower side of said insole, a first sleeve secured at one end to said pivot pin, a second sleeve secured at one end to said housing and encircling said first sleeve, and a third sleeve encircling said second sleeve and axially movable with respect to it, means for axially adjusting said third sleeve with respect to said second sleeve, said third sleeve housing at its free end a manually operable control head, said control head being housed in said sleeve in a rotatable but non axially slidable manner, a shaft secured centrally to said head and extending into said first sleeve, and means on said shaft and said first sleeve for coupling the said shaft and sleeve in an axially slidable but non rotatable manner.

Claim 8

In a ski boot comprising a boot upper, an outsole secured to said upper, a rigid insole hingedly connected near its toe end to said outsole, a lifting device built-in in said outsole in the heel region thereof, the said lifting device comprising a housing, a pivot pin rotatably supported by said housing, a cam keyed on said pivot pin, a lever arm journalled at one end in said housing, said lever arm being in contact with its intermediate portion with the said cam, and being further in sliding contact with its other end with the lower side of said insole, a first sleeve secured at one end to said pivot pin, a second sleeve secured at one end to said housing and encircling said first sleeve, and a third sleeve encircling said second sleeve and axially movable with respect to it, means for axially adjusting said third sleeve with respect to said second sleeve, said third sleeve housing at its free end a manually operable control head, said control head being housed in said sleeve in a rotatable but non axially slidable manner, a shaft secured centrally to said head and extending into said first sleeve, and means on said shaft and said first sleeve for coupling the said shaft and sleeve in an axially slidable but non rotatable manner.

Claim 9

A ski boot according to claim 6, in which the said means for axially adjusting said third sleeve with respect to said second sleeve are in the form of adjusting screws, connecting said third sleeve to said housing.

Claim 10

A ski boot according to claim 6, in which said third sleeve is provided with an internal screw thread, and is screwed to a corresponding external screw thread formed in said second sleeve.

Claim 11

A ski boot according to claim 1 wherein the rotational axis of said cam is generally parallel to the bottom surface of said outsole.

Claim 12

A ski boot according tO claim 9 wherein the rotational axis of said rotary transmission means is generally parallel to the bottom surface of said outsole and oriented at a substantial angle relative to the fore-and-aft axis of said boot such that said other end thereof is readily accessible at one of the two lateral sides of the periphery of the outsole.