[0001] The present invention relates to a safety device particularly usable in ski bindings
or in other devices in which a mechanism is activated by way of a lever-equipped button
or of other activation devices having a similar shape.
[0002] Devices for adjusting the position of ski bindings or the angular position of snowboard
bindings are in fact currently commercially available and are generally constituted
by locking means that can be activated and deactivated by way of lever-equipped buttons.
[0003] The main drawback of those conventional adjustment devices is that they can be activated
accidentally, for example due to an impact by an external object on the lever or button,
thus exposing the user to severe risks, because the support on the implement is suddenly
lost.
[0004] Another drawback of the prior art adjustment devices provided with lever-equipped
buttons is that most of them do not clearly indicate visually the position of said
button.
[0005] Accordingly, the user, directly after an adjustment of the binding, may start the
sports practice believing that the adjustment device has been locked while it is instead
still open.
[0006] Again, this can cause a dangerous condition for the user, affecting his or her safety.
[0007] The aim of the present invention is therefore to solve the above cited technical
problems of the prior art, by providing a safety device that provides a safe locking
for the lever-equipped button.
[0008] An important object of the invention is to provide a safety device that can be activated
and deactivated simply and rapidly.
[0009] Another important object is to provide a safety device that allows clear and evident
visual indication, in any situation, of the locked/released condition of the binding.
[0010] Another object is to provide a device that is structurally simple and has low manufacturing
costs.
[0011] This aim and these and other objects that will become better apparent hereinafter
are achieved by a safety device, particularly for ski bindings comprising a lever-equipped
button that is selectively and rotatably associated with a central body, characterized
in that it comprises a lever that has a first end, which is pivoted to said button,
and a second free end, which interacts, by abutment, with at least one first locator
provided in said central body for the temporary locking of the rotation of said button.
[0012] Further characteristics and advantages of the invention will become better apparent
from the detailed description of a particular embodiment, illustrated only by way
of non-limitative example in the accompanying drawings, wherein:
Figures 1 and 2 are perspective views of, respectively, a device for adjusting the
distance between the toe unit and the heel unit of a ski binding and the device for
activating said adjustment device;
Figures 3 and 4 are plan views of the activation device, respectively in the locked
position and in the adjustment position.
[0013] With reference to the above cited figures, the numeral 1 designates a safety device,
particularly usable in ski or snowboard bindings, provided with suitable means for
example for adjusting the angle or the mutual distance between the toe unit and the
heel unit of the bindings with respect to the board or ski, said means comprising
a central body 2 for containing a plurality of gears, generally designated by the
reference numeral 3.
[0014] Two plates 6a and 6b, for supporting respectively a toe unit and a heel unit, not
shown in the figures, are associated so that they can slide temporarily with the free
ends 4a and 4b of the central body 2, which is associable with a ski 5 in a lower
region.
[0015] In this particular embodiment, the central body 2 has a first central opening 7,
which can be closed by a cover 8.
[0016] In the cover there is a second opening 9 for placing a lever-equipped button 10,
which is teardrop-shaped and interacts with the gears 3 so as to allow the temporary
sliding of the pair of plates 6a and 6b along the free ends 4a and 4b of the central
body 2 and therefore allow adjustment of the ski binding.
[0017] The lever-equipped button 10 is in fact selectively and rotatably associable with
the central body 2 and can assume a first locking position, in which it is accommodated
within a first seat 11 formed in said central body 2, and a second position for activating
the adjustment device, in which the button 10 protrudes approximately at right angles
with respect to the ski 5.
[0018] The safety device 1 is constituted by a lever 12, which is pivoted to the button
10 at a first end 13a.
[0019] The pivoting is achieved for example by using a pivot 14, which passes approximately
vertically through two first holes 15a and 15b formed within said first end 13a of
the lever 12 and through a second hole 16 formed at the end of the button 10 that
is directed toward the outer lateral edge of the cover 8.
[0020] An elastically deformable element, such as a spring 17, is provided coaxially to
the pivot 14 and is suitable to keep the lever 12 in abutment and accommodated within
a second seat 18, formed in the button 10, which is preferably shaped complementarily
to a first inner lateral edge 19a of the lever 12.
[0021] Once the button 10 is in the locked position, the lever is arranged approximately
parallel to the longitudinal axis of the ski 5 and is accommodated within the second
seat 18.
[0022] In this condition, the second free end 13b of the lever 12 is shaped so as to interact,
by abutment, with at least one first locator 20, provided in the central body 2.
[0023] Said interposition of parts, between the lever 12, arranged in abutment, and the
first locator 20, ensures the temporary locking of the rotation of the button 10.
[0024] The second lateral edge 19b, arranged opposite the first lateral edge 19a of the
lever 12, has a linear shape, so as to arrange itself approximately on the same plane
as the lateral edge of the ski 5, when the lever 12 is in the abutment position.
[0025] Once the lever 12 has been turned, so that the second end 13b does not interact with
the first locator 20, the user can turn the button 10 until it reaches the second
activation position.
[0026] In said second position, the lever 12, actuated by the spring 17, arranges itself,
as in Figure 4, approximately parallel to the longitudinal axis of the ski 5. The
second end 13b of the lever 12 is arranged at a second locator 21, which allows stable
positioning of the lever 12 in the condition in which the button 10 is open.
[0027] In this position, the lever 12, by protruding laterally from the ski 5, acts as a
visual indicator of the activation position of the button 10.
[0028] The operation of the device is therefore as follows: with particular reference to
Figures 3 and 4, when the lever is arranged at the first locator 20 the lever-equipped
button 10 cannot be removed from the locking position, thus ensuring that the adjustment
performed on the ski binding is maintained and avoiding the danger of accidental activations
of the button caused for example by impacts.
[0029] In order to change the adjustment of the ski binding, the user merely has to turn
the lever 12 clockwise about the pivot 14 until it disengages from the first locator
20. Immediately thereafter, counterclockwise rotation of the button 10 is allowed,
the button interacting with the underlying gears 3, so as to activate the adjustment
device.
[0030] The spring 17 acts so as to move the lever 12, no longer retained by the user, into
abutment in the second locator 21.
[0031] It has thus been found that the invention has achieved the intended aim and objects,
a device having been provided which allows to perform, simply and rapidly, a safety
locking of the lever-equipped button of an adjustment device for ski or snowboard
bindings.
[0032] The materials used, as well as the dimensions of the individual components of the
invention, may of course be more pertinent according to specific requirements.
[0033] The disclosures in Italian Utility Model Application No. TV2001U000008 from which
this application claims priority are incorporated herein by reference.
[0034] 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 safety device, particularly for ski bindings comprising a lever-equipped button
that is selectively and rotatably associated with a central body, characterized in that it comprises a lever that has a first end, which is pivoted to said button, and a
second free end, which interacts by abutment with at least one first locator provided
in said central body for the temporary locking of the rotation of said button.
2. The device according to claim 1, characterized in that said lever is pivoted to said lever-equipped button by means of a pivot that passes
within one or more holes formed within said button and said first end of said lever.
3. The device according to claim 2, wherein said central body has a first seat for positioning
said button, which interacts in a lower region with a plurality of gears for activating
a device for adjusting said binding, characterized in that an elastically deformable element is associated with said lever and is adapted to
keep it in abutment and accommodated within a second seat, which is formed in said
button and is shaped complementarily to a first inner lateral edge of said lever.
4. The device according to claim 3, characterized in that said elastically deformable element is constituted by a cylindrical spring arranged
coaxially to said pivot.
5. The device according to one or more of the preceding claims, wherein said lever-equipped
button is arranged laterally to said central body, characterized in that said pivot passes approximately vertically through two first holes formed in said
first end of said lever and through a second hole formed at the end of the button
that is directed toward the outer lateral edge of said central body.
6. The device according to one or more of the preceding claims, wherein said lever-equipped
button assumes a first locking position, in which it is accommodated within said first
seat, and a second position for activating said adjustment device, in which said button
protrudes approximately at right angles to said ski, characterized in that when said button is in the locking position said lever is arranged approximately
parallel to the longitudinal axis of said ski and is accommodated within said second
seat.
7. The device according to claim 6, characterized in that when said button is arranged in the locking position, said second end of said lever
is shaped so as to interact by abutment with said first locator provided in said central
body.
8. The device according to claim 7, characterized in that said first locator is constituted by a portion of the raised edge that constitutes
said first seat.
9. The device according to one or more of the preceding claims, characterized in that the interposition of parts between said first locator and said lever, arranged in
abutment, ensures the temporary locking of the rotation of said button.
10. The device according to one or more of the preceding claims, characterized in that the second lateral edge of said lever, which is external and opposite with respect
to said first lateral edge, has an approximately linear shape that is suitable to
arrange itself approximately on the same plane as the lateral edge of said ski when
said lever is in the abutment position.
11. The device according to one or more of the preceding claims, characterized in that once said lever has been turned so that said second end does not interact with said
first locator, the user can turn said lever-equipped button until it reaches the second
activation position.
12. The device according to claim 11, characterized in that when said button is arranged in the activation position, said elastically deformable
element forces said lever to assume a position that is approximately parallel to the
longitudinal axis of said ski, so that said second end of said lever interacts with
a second locator provided along the lateral edge of said central body.
13. The device according to claim 12, characterized in that when said button is arranged in the activation position, said lever, by protruding
laterally and externally from said ski, acts as a visual indicator of the activation
position of said button.