[0001] The present invention relates to a ski boot and a method for providing a ski boot.
[0002] Ski boots are constituted by a shell, which is pod-shaped and adapted to accommodate
the foot of the user, and by a leg cuff, which connects the boot with the leg and
is adapted to wrap around the lower region of the tibia.
[0003] Ski boots for ski-mountaineering have a different structure with respect to regular
ski boots in that the activity of ski-mountaineering involves executing both downhill
and uphill segments and routes, of greater or lesser length, or on apparently flat
terrain.
[0004] It is evident that on the downhill segments it is necessary that the configuration
of the boot be substantially similar to that of a classic ski boot (and thus with
fastenings to the ski both in the toe zone and at the heel) while on the uphill segments
(in which generally the ski mountaineer progresses with climbing skins) or on apparently
flat terrain it is essential that the boot befastened to the ski only at the toe zone
in order to allow the lifting of the heel when pushing (similarly to what occurs in
cross-country skiing).
[0005] Ski boots for ski-mountaineering are typically provided among other things with a
locking device, which acts between the shell and the leg cuff and is adapted to pass,
on command, between an operative position, which is used when going downhill and that
locks the relative rotation of the leg cuff with respect to the shell about the pivoting
axis, and an inactive position in which the rotation of the leg cuff with respect
to the shell about the pivoting axis is allowed.
[0006] Some types of ski boots have the leg cuff made of two portions: a front portion and
a rear portion, which can move with respect to each other in order to pass from an
open condition, used for example for engaging and disengaging the foot with the boot,
and in some cases, for ski boots for ski-mountaineering or for freeriding, for making
an ascent, to a closed condition, in which the two portions are mutually brought close
together and wrap around the lower portion of the tibia.
[0007] In some cases the front portion of the leg cuff is rotatably supported on the rear
portion, so that the flaps of the front portion, when the leg cuff is in the closed
condition, are arranged externally with respect to the matching flaps of the rear
portion, or vice versa.
[0008] With reference to such type of product, it should be noted that if the front portion
of the leg cuff is hinged directly on the shell, then it is particularly difficult
to handle and correctly size the folding of the longitudinal flaps in order to ensure
a correct coupling in the closed condition.
[0009] The aim of the present invention is to provide a ski boot that is capable of improving
the known art in one or more of the above mentioned aspects.
[0010] Within this aim, an object of the invention is to provide a ski boot that is extremely
practical in the transition of the leg cuff from the open condition to the closed
condition.
[0011] Another object of the invention is to provide a ski boot that has optimized rigidity
and support both of the flank directed inward and of the flank directed outward.
[0012] Another object of the invention is to devise a method for providing a ski boot that
is highly reliable, easy to implement and of low cost.
[0013] This aim and these and other objects which will become better apparent hereinafter
are achieved by a ski boot according to claim 1, optionally provided with one or more
of the characteristics of the dependent claims.
[0014] Further characteristics and advantages of the invention will become better apparent
from the description of a preferred, but not exclusive, embodiment of the ski boot
according to the invention, which is illustrated by way of non-limiting example in
the accompanying drawings wherein:
Figure 1 is a side view from the innermost side of the ski boot according to the invention
with the front portion and the rear portion in the closed or brought-together position
of the leg cuff;
Figure 2 is a side view from the outermost side of the ski boot according to the invention
with the front portion and the rear portion in the closed or brought-together position
of the leg cuff;
Figure 3 is a view from above of the ski boot according to the invention with the
front portion and the rear portion in the closed or brought-together position of the
leg cuff.
[0015] With reference to the figures, the present invention relates to a ski boot, generally
designated by the reference numeral 1, comprising a shell 2, which is pod-shaped and
configured to accommodate the foot of the user, and a leg cuff 3.
[0016] The leg cuff 3 comprises a front portion 3a of the leg cuff 3 and a rear portion
3b of the leg cuff 3 which have respectively two mutually opposite lateral flaps 13a,
13b; 14a, 14b.
[0017] Both the front portion 3a and the rear portion 3b have a concavity directed toward
the inside of the leg cuff 3.
[0018] The front portion 3a and the rear portion 3b are movable, with respect to each other,
in order to pass from an open or spaced-apart position of the leg cuff 3, in which
at least one portion of at least one pair of mutually opposite matching lateral flaps
13a, 14a; 13b; 14b are mutually spaced apart, to a closed or brought-together position
of the leg cuff, in which the mutually opposite matching lateral flaps 13a, 14a; 13b;
14b are mutually close together.
[0019] According to the present invention, in the closed or brought-together position of
the leg cuff 3, a first flap 13a of the front portion 3a of the leg cuff 3 is arranged
externally with respect to the matching flap 14a of the rear portion 3b of the leg
cuff 3, while the second flap 13b of the front portion 3a of the leg cuff 3 is arranged
internally with respect to the matching flap 14b of the rear portion 3b of the leg
cuff 3.
[0020] Conveniently, the rear portion 3b of the leg cuff 3 can rotate, about an axis that
is substantially parallel to the axis 100 of the ankle of the user with respect to
the shell 2.
[0021] Conveniently, the front portion 3a of the leg cuff 3 can rotate, about an axis that
is substantially parallel to the axis 100 of the ankle of the user with respect to
the shell 2.
[0022] Advantageously, both the front portion 3a of the leg cuff 3 and the rear portion
3b of the leg cuff 3 can rotate, about an axis that is substantially parallel to the
axis of the ankle 100 of the user with respect to the shell 2.
[0023] In this regard, the rotation axis of the front portion 3a can coincide with, or be
different from, the rotation axis of the rear portion 3b.
[0024] It is also possible for both the front portion 3a and the rear portion 3b to be able
to rotate, about the respective or the same axis, with respect to the shell 2.
[0025] However, there is no reason why the front portion 3a cannot be associated rotatably
with the rear portion 3b about a respective axis, with the rear portion 3b associated
rotatably with the shell 2, or why the rear portion 3b cannot be associated rotatably
with the front portion 3a about a respective axis, with the front portion 3a associated
rotatably with the shell 2.
[0026] Obviously, there is no reason why the front portion 3a and/or the rear portion 3b
cannot have a different movement, for example translation or roto-translation, with
respect to the shell 2 during the transition from the open or spaced-apart position
to the closed or brought-together position and vice versa.
[0027] Advantageously, the ski boot 1 comprises a locking device, which acts between the
shell 2 and the leg cuff 3 and is adapted to pass, on command, between an operative
position, in which it blocks the relative rotation of the leg cuff 3 with respect
to the shell 2 about the pivoting axis, and a non-operative position, in which the
rotation of the leg cuff 3 with respect to the shell 2 about the pivoting axis is
allowed.
[0028] With reference to the embodiment shown in the figures, the pivoting axis can correspond
to the axis of the ankle 100.
[0029] The ski boot 1 is provided with fastening clasps 2a and a sole 5.
[0030] The ski boot 1 further comprises a tongue 4 which is associated with the shell 2
and is accommodated, at least partially, within the leg cuff 3.
[0031] With reference to the embodiment shown in the figures, the first flap 13a of the
front portion 3a of the leg cuff 3 is arranged on the innermost flank of the ski boot
1; the second flap 13b will instead be arranged on the outermost flank of the ski
boot 1.
[0032] In this manner, on the innermost flank, the flap 13a of the front portion 3a will
be arranged externally, while on the outermost flank of the boot 1, the flap 13b of
the front portion 3a will be tucked inward into the leg cuff 3.
[0033] This particular embodiment makes it possible to obtain a greater rigidity and a greater
support on the outward flank of the boot, flank that typically is under the heaviest
stress.
[0034] Obviously it is possible, in some applications or for some types of ski boots, to
have the flaps arranged in reverse, and therefore the flap 13a of the front portion
3a is tucked inside.
[0035] The leg cuff 3 in the open or spaced-apart position has both of the mutually opposite
pairs of matching lateral flaps 13a, 14a; 13b; 14b mutually spaced apart.
[0036] When the leg cuff 3 is instead in the closed or brought-together position, both of
the mutually opposite matching lateral flaps 13a, 14a; 13b; 14b are mutually close
together.
[0037] The use of the ski boot 1 according to the invention is substantially similar to
the use of a traditional ski boot or of a ski boot for ski-mountaineering.
[0038] In practice it has been found that the invention fully achieves the intended aim
and objects by providing a very performing ski boot yet is capable of ensuring a convenient
and effective transition from the position in which the leg cuff is open to the position
in which the leg cuff is closed.
[0039] Firstly, having provided the leg cuff in two portions makes it possible to obtain
a greater structural rigidity than that of a conventional leg cuff.
[0040] Furthermore, the contrivance of asymmetrically arranging the flaps of the rear portion
and of the front portion makes it possible to optimize the rigidity and support of
the innermost flank and of the outermost flank of the boot, as well as making the
operations to close the leg cuff easier.
[0041] The invention thus conceived is susceptible of numerous modifications and variations,
all of which are within the scope of the appended claims. Moreover, all the details
may be substituted by other, technically equivalent elements.
[0042] In practice the materials employed, provided they are compatible with the specific
use, and the contingent dimensions and shapes, may be any according to requirements
and to the state of the art.
[0044] Where technical features mentioned in any claim are followed by reference signs,
those reference signs have been included for the sole purpose of increasing the intelligibility
of the claims and accordingly, such reference signs do not have any limiting effect
on the interpretation of each element identified by way of example by such reference
signs.
1. A ski boot (1) comprising a pod-shaped shell (2) configured to accommodate the foot
of the user, and a leg cuff (3) which comprises a front portion (3a) of the leg cuff
(3) and a rear portion (3b) of the leg cuff (3) which have respectively two mutually
opposite lateral flaps (13a, 13b; 14a, 14b), said front portion (3a) and said rear
portion (3b) being movable, with respect to each other, in order to pass from an open
or spaced-apart position of the leg cuff (3), in which at least one portion of at
least one pair of mutually opposite matching lateral flaps (13a, 14a; 13b; 14b) are
mutually spaced apart, to a closed or brought-together position of the leg cuff, in
which the mutually opposite matching lateral flaps (13a, 14a; 13b; 14b) are mutually
close together, characterized in that in said closed or brought-together position a first flap (13a) of said front portion
(3a) of said leg cuff (3) is arranged externally with respect to the matching flap
(14a) of the rear portion (3b) of said leg cuff (3), and the second flap (13b) of
said front portion (3a) of said leg cuff (3) is arranged internally with respect to
the matching flap (14b) of the rear portion (3b) of said leg cuff (3).
2. The ski boot (1) according to claim 1, characterized in that said rear portion (3b) of said leg cuff (3) can rotate about an axis (100) that is
substantially parallel to the axis (100) of the ankle of the user with respect to
said shell (2).
3. The ski boot (1) according to claim 1 or 2, characterized in that said front portion (3a) of said leg cuff (3) can rotate about an axis that is substantially
parallel to the axis (100) of the ankle of the user with respect to said shell (2).
4. The ski boot (1) according to one or more of the preceding claims, characterized in that it comprises a locking device, which acts between said shell (2) and said leg cuff
(3) and is adapted to pass on command between an operative position, in which it blocks
the relative rotation of said leg cuff (3) with respect to said shell (2) about a
pivoting axis, and a non-operative position, in which the rotation of said leg cuff
(3) with respect to said shell (2) about said pivoting axis is allowed.
5. The ski boot (1) according to one or more of the preceding claims, characterized in that said pivoting axis corresponds to the axis of the ankle (100).
6. The ski boot (1) according to one or more of the preceding claims, characterized in that it comprises a tongue which is associated with said shell (2) and is accommodated
at least partially within said leg cuff (3).
7. The ski boot (1) according to one or more of the preceding claims, characterized in that said first flap (13a) of said front portion (3a) of said leg cuff (3) is arranged
on the innermost flank of said ski boot (1).
8. The ski boot (1) according to one or more of the preceding claims, characterized in that with said leg cuff (3) in said open or spaced-apart position, both of the mutually
opposite pairs of matching lateral flaps (13a, 14a; 13b; 14b) are mutually spaced
apart, and with said leg cuff (3) in said closed or brought-together position, both
of the mutually opposite matching lateral flaps (13a, 14a; 13b; 14b) are mutually
close together.
9. The ski boot (1) according to one or more of the preceding claims, characterized in that said front portion (3a) is associated rotatably with said rear portion (3b), or said
rear portion (3b) is associated rotatably with said front portion (3a).