Note: Descriptions are shown in the official language in which they were submitted.
3~86~L4~
SOLE FOR CROS~COUNTR~ SKI SHOE
TE~HNICAL FIELD
.
The present invention relates to an improvement in a sole for a
eross-eountry shoe, and also to a toe binding especi~lly suitable for use
with an embodiment of the improved sole.
5 BACKGROUND OF THE INVENTION
Developments in the cross-country ski sport in recent years have
resulted in the use of steadily more lightweight ski equipment including
ligh~er weight shoes, skis and bindings.
In regard to soles for cross-country ski shoes, the use of leather
10 is being replaced by synthetic materials such RS rubber and pl~sti¢s~ for
example nylon. Toe bindings of various types have been made lightweight
~d smaller, particularly in connection wlth the development of s~called
"snabel" or "nose tip shoes," where an extremity or nose on the shoe
sole is locked into the toe binding.
These developments have resulted in lightweight and comfortable
equipment, particularly for competition skiers. However9 these
developments have simultaneously resulted in steadily greater problems
in obtnining a dependable ~nd torqu~stable connection between the shoe
~d the sld such th< latersl movements of the shoe in the binding ~nd
20 also o~ the shoe itself &re avdded. Such lateral movements result
becallse the heel portion of the shoe becomes more or less displaced
~om its support on the ski, resultillg in unstable snd Imcomfortable
skiing. In order to avoid this shortcoming, attempts have been m~de
to develop better toe bindings and Yarious forms of heel support in
25 order to hinder such lateral displacement of the shoe. The need for
~ ~i
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steady support of the shoe on the ski is even more import~nt because
of the use of present day narrow and lighter skis and very lightweight
and thin cross-cou~try shoes, frequently made from a more or less elastic
textile materi~l.
l~qany different solutions have been proposed to improve biasing
support and loeking of the shoe onto the ski. For example, the front
of the sole of the shoe is locked into a toe binding which includes a
clamp, side ears or walls and upwal dly extending pins. The tip or toe
extension of the sole is placed between the side walls, the pins extend
into apertures in the toe extension and the clamp sec~es the toe
extension in position. Currently several $ypes of commerclal bindings
which are adapted to receive a st~nd~rdized sole are available. However9
special types of eommercial bindings are also available. ~urtherl various
types of heel supports are currently in use. One type of heel support
uses V-shaped groove in the heel of the sole which fits around a
complementary V-shaped projection attached to the ski. In another prior
art technique, crosswise or longitudinally extending grooves or the like
are formed in the surface of the sole between toe ~nd heel. Norwegian
patent No. 1~0 325 discloses ~ cross-country ski shoe sole provided with
a pair of longitudin~ grooves or ridges ad~pted to receive opposed side
edges of the ski. These grooves or ridges are located in the forefoot
section of the sole.
SUMMARY OF THE lNVENTION
.~ The present invention~ré~ates to ~n outersole f or a cross-country
25 ski shoe. The outer sole includes ~ sole plate member h~ving a toe
section, ~ forefoot section, an Arch section, a heel section, an upper
surface for ~tta~hment to a shoe upper and Q lower surface adapted to
~ntact ~ ski. The lower surface hes Q pair of transversely spaced,
longitudinally extending side wsll defining between them a longitudin~lly
extending ~roove. The groove has a width sufficient for receiving the
ski so t51at the side walls of the groove extend about the side walls of
the slcl. The ~,~roove extends through Qt least the forefoot, ~rch ~nd
heel seetio~s.
A sole in ~ccordance with the preqent invention is constructed
with the understanding that s~tisf~ctory l~teral support cen be optimized
~136~
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if the engagement between the sole and the ski is always present, i.e.,
present even during skiing motion when the shoe is bent up from the
ski.
A sole for cross-country shoe in accordance with the invention is
5 generally characterized in that substantiEILly the entire sole frorn the
toe to the heel is provided with a continuous recess or "groove,"
dimensioned for grasping around opposite side edges of the ski. In one
embodiment the groove extends from immediately behind the toe
extesion to the heel edge. In another embodiment the groove extends
10 into the toe extension.
By having the groove extend continuously from the toe portion
of the sole to the heel edge, whether or not the groove extends into
the toe extension, the need of a heel plste with the V-shaped projection
is eliminated. The coupling of the shoe to the ski is thus simplifîed,
15 and less elements h~ve to be atta~hed to the ski. Since less elements
have ts be att&ched to the ski, the chance of weakening the ski because
of the attachment of elelments to the ski is reduced. This use of the
continuous longitudinal groove also has the advantage that a continuous
lateral alignment and correction mechanism, i.e., the edges of the side
20 w~s of the grooves extending around and engaging the sides of the
ski, tends to urge the shoe into lateral alignment with the ski during
most of the up and down motion of the foot.
In the embodiment where the groove extends into the toe extension
of the ~hoe sole, tl)e side w&lls of the groove which fit into the binding
25 grasps the ski edges. A toe binding which is specially ad&pted for this
embodiment of a sole is ~Iso pQrt of the invention diselosed herein.
There ~re tS~erefore two embodiments of shoe soles in accordance
with ~e invention, n~mely ~ first embodiment adapted for standard toe
bindings wherein the groove does not extend into the toe extension, and
30 one embodiment ad~pted for the new binding in Rccordance with the
invention wherein the groove e~tends into the toe extension.
The recess or groove in the sole should preferably be deep, ~nd
for instance comprise about 10% OI the width of the ski, i.e., flbout 5
mm deep for ~ norm~ cPoss-country ski. The sides of the recess should
35 extend either normal to the sur~ace of the sole, or at ~ smsll tilt
6~4
outwards, such that a centering effect Occuls when the shoe is set down
onto the ski. Slnce the ski shoe wi ll generally ~1WAYS be to som e
extent in engagement with the ski, it is not necessary to use ~ separate
heel fitting. The sole should preferably be of the "snabel type," i.e.,
5 having a forwArdly directed to exterlsioll with the usual apertures for
pins positioned on the binding plate. Alternatively, other locking means
can be used.
With the embodiment of a sole which is to be used with industry
stand~rd "Nordic Norm" toe bindings both 75mm and extended toe 50mm,
10 the thiekness of ~he ridges in front should decrease towards zero at
the point where the sole comes into ellgagen-ent w~th the binding
armature. Otherwise the sole would be pressed upwards by the base
plate of the binding. This embodiment could also be made for use with
most flny toe binding.
A fu~ther new feature with the shoe sole in accordance with the
invention is that the longitudinal center portion of the sole9 i.e. the
erch area, is provided with a lateral widening or extension, particularly
on the inside of the foot, to an extent such that the groove or recess
in the sole can be extended continuously b~ckwards through this center
20 (arch) portion to the heel portion of the sole. Continuous engagement
between the sole and the ski at both sides of the sole is thus obtained.
Furthermore, an evenly distributed, full support between the shoe sole
and the ski occursO This later~l extension particularly on the mediPl
side, provides additional lateral support to aid in edging the skis, thus
25 enhacing ~le control ability of the skis~ This is in contrast to typical
~oss~country ski shoe soles where the center portion is rather nsrrow,
res~ting in a eenter ~one OI the sole that has no or very little support
against the ski.
A further feature in accordance with the invention relating to
30 the lateral expansion of the sole, is that the shoe above the lateral
sole expai)sion can be built up or supplied with a special build up.
The invention also comprises a new type of toe binding which
accomodates a sole in which the groove extends all the way to the tip
of ~he sole into the toe extension. A toe binding in accordance with
the invention ~ gener&~y characterized simply by a clamp fit~ng which
36~4
S 3
s~an be locked in cl~mping position against the tip of the sole.
In a preferred embodiment of a binding in accordance with the
invention the clamp fitting includ&~ a front guide which preYents lateral
movements of the clamp fitting. In one embodiment the clamp fittings
5 are pivotally supported on a trsnsversely extending bolt or the like
journalled in a binding arm~ture attached to the ski. In another
embodiment a laterally extending guide in the shape of fl~nge members
is provided on the clamp fittings and on the plate ~rmature attached
to the ski.
A binding in accordance with the invention may be provided with
Yarious kinds of mechanisms for clamping and locking the clamp armature
against the tip of the sole. In one embodiment a threaded bolt is
attached to the plate armature in connection with a wing nut which
rests on and is tightened against the clamp armature, Another
15 embodiment uses an eccentric~lly journaUed pivot arm.
One emb~diment of a binding in accordance with the invention
distinguishes from conventional bir:ding in that the plate ~rmature
a~tached to the ski is made without the usual side ears adapted to rest
against the side edges of the sole, since the locking of the shoe sole
20 Q~ainst lateral movement is obtained entirely through the special groove
in the sole which r~xtends into the toe extension strads~ing the side
edges of the ski. Additionally, the sole can be qrranged with apertures
engaging complem~ntary pins or the like attached to the binding pl2te
armatllre~ In another embodiment of the binding, the conventional side
25 ears on the plate armature are replaced with downwardly pointing side
ears provided on the clarnp armature. Such downwardly pointing side
ears superimpose the tip of the sole (toe extension) incluciing the opposed
side ~es which extend over the side edges of the ski. With this
embodiment has the special ~dvantage that the binding can be used with
30 conventional ski soles as well ss with the special shoe sole in accordance
with the invention provided with Q longitudinally extending groove or
recess along the tip of the sole.
,
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Various aspects of the invention are as
follows:
An outer sole for a ~ross-country ski shoe comprising R
sole plste member having a toe seation, a forefoot sectiorl, an arch
5 section, a hesl section, an ~pper surface for sttRchment to a shoe upper
and a lower surface adapted to contact a ski, said lower s~face having
a pair of transversely spaced, longitudinally extending side walls defining
between them a longitudinally extending groove, said gl oove having a
width sufficient for receiving the ski so that said side walls of said
10 groove extend about the side walls of the ski, said groove extending
through at least said forefoot9 ~rch and heel sections.
~ n outer sole for a cross-country ski shoe comprising ~
sole plate member having a toe section, a forefoot section, ~n ~rch
section, a heel ~ection, a toe extension adapted to be coupled to a
15 binding on a ski, ~n upper surface for aetachment to Q shoe upper, a
lower su~rface ~d~pted to cont~ct the ski, ~nd a lateral extension portion
on the medial side of ssid arch ssction~ said lateral extension portion
extending past the medial side edge of the ski ~nd through the entire
srch ~ection, said lower surface of said s~le plate member having a
2 pair of transversly spaced, longitudinally extending side walls defining
between them ~ longitudinaLly extending Igroove, said grooYe having a
width sufficient ~r receiving the ski so that said side walls of said
grooYe extend about the side walls of the groove3 said groove extending
from said toe section, and through said forefoot, arch and heel sections
25 so that in normal c~oss-country skiing moffons some portion of said side
wslls of s~id groove extend about the side w 71s of ski to provide lateral
stability.
~L8~ 4
-5b-
A ~oss-country ski shoe comprising a shoe upper ~nd ~n
outer sole, said outer sole including 8 sole plate member hf~ving a toe
section, ~ forefoot section, an arch section, a heel section, a toe
extensioll ad~pted to be coupled to 1l binding on ~ ski, an upper surfQce
5 attached to said shoe upper, ~ lower surfsce ad~pted to cont~ct a ski,
~nd a lateral extension porffon on the medial side of said arch section,
sa~d lateral extension porffon extending pRSt the medi~l side edge of
the ski and through the entire arch section, s~id lower surf~ce of said
sole plate mem~r having a pair of transversely speced, longitudinally
10 eastendirlg ~;ide walls defining between them a longitu~nally extending
groove, ~aid groove having ~ width sufficient for reeeiving the ski so
tha$ s~id side w~lls of said groove extend ~bout the side walls of the
3ki, said gr~ve extending from said toe section and through s~id forefoot,
arch and heel si~ctions so that in normal cross-~oun~ry skiing motions
15 30lDe portion of said side walls of said groove extend~ about the side
walls of ~ki to provide latersl stability.
A toe binding for coupling a CT oss-country ski shoe to a
ski comprising a plate member eldepted to be fixed to the ski, a damp
adapted to cont~ct a toe extension of the ski shoe and a releaseable
clamp ret~iner, s~}id plate member having nat side edges to permit
20 F~ordons of the toe extension to extend downw~rd Qbout the side edges
of the sld.
Various ~dvantflges snd features of novelty which characterize the
ulvention ~re pointed out with particularity in the claims annexed hereto
25 and forming a p~rt hereof. E~owever, for a better understanding of the
~.~.8~
invention, its advantages, and objects obtained by its use, reference
should be made to the drawings which form a further part hereof and
to the aceompan~ng deseriptive matter in which there is illustrated and
described preferred embodiments of the invention.
5 BRI13F DESCRIPrIC)N CSF THE DRAWINGS
Figure 1 is a plan view of one embodiment of a sole in accord~nce
with the present invention;
Fig~ e 2 is a longitudinal sectional view taken generally along
line 2-2 ~ ~igure 1 illustrating the sole mounted on a ski;
Figure 3 is a perspective view of the bottom side of the sole of
Figure l;
Figure 4 is a top plan view of the toe exter~;ion of the sole of
Fi~ure 1 ~ttached to a ski by a comrentional binding;
Figure 5 is ~ plan view of another embodiment of a sole in
15 accordance with ~he present invention;
~igure 6 is a perspective view of the bottom side of the sole of
Figure 5;
Fig~e ~a is a fragmentary perspeetive view of the tip portion
of a variation of a sole in accordance with the invention;
Figure 7 is a cross-section taken gener~lly along line 7-7 in Figure
5;
Pigures 8 and 9 are a lateral view in section and a plan view,
respectively, of ~ ski binding in ~ccordance with the invention, shown
coupled to a ski shoe having a sole in accordance with the invention;
Fi~ure l0 is a later~l view æimilar to Figure 8, illustrating another
embodiment of ski binding; and
Figure 11 is ~ schematic perspective view illustrating a further
embodiment of ski binding.
DETAILED D~SCRIPrION OF THE INVENTION
- 30 In Pig~es ~4, where liice reference numbers design~te like parts,
a solel comprising a sole pl~te member in ~ceordance with the present
invention is designated generally as 2. Sole pl~te member 2 is preferably
molded ~rom a pl~stie or a rubber- or plastic-like material. Sole plate
member 2 can be divided into A number of secffons, related apprGximately
35 to the portions of the foot located above the respective sections. For
~1~36~L4~
- 7
example, d toe section is located between lines Ll and L2; a forefoot
section is located between lines L2 and L3; an arch sectoin is located
by line L3 and ~; a heel section is located rearward of line Ll; and
a toe extension is located foreward of line Ll. ~ole plate member 2
h~ a longitudinally extending rectilinear recess or "groove" 4 on its
bottom or underside defined between a pair of oppos;ng, transversely
sp~ced edges or side walls 6 and 8. Side walls 6 and 8 extend normQl
to or substantially normal to, i.e. at a slight outward angle to, the
plane of sole plate member 2 or the bottom face of groove 4. The
bottom face of groove 4 is designed to rest against the top side of
the ski. The width of the groove corresponds to the width "B" of a
ski which is to be used with the sole. ~ide walls 6, 8 thus extending
about the side walls of the ski. Preferably, sole plate member 2 is
~ormed of two pieces 3 and 5, which are secured to one another. Piece
3 is preferably ~ormed of thermoplastic which is flexible yet sufficiently
rigid to provide the required degree of torsional stability. Piece 3 is
attached to the shoe upper. Piece 5 is preferably formed of thermoplastic
or rubber like material having the skid resistant property of rubber.
Piece 5 has groove 4 formed longitudinally in it.
Figure 2 illustrates the depth profile of groove 4 as "H." This
depth can, if desired, vary somewhat in correspondence with the contour
~f lateral portions lO and 12 of sole plate member 2, but should în
average have a depth of about ~-7 mm. The depth of the groove can
if d~ired increase towards the heel portion as shown by dot-dash lines
9 in Figure 2. The front toe portion sole plate member 2 and groove
4 cQn be varied in accoFdsn~e with the type of toe binding which will
be usedO
The atta~hment OI sole plate member 2 and the shoe to which
it is attached to a typic~1 ~ross-~ountry ski 30 by a binding ll is shown
in Fig~es 2 and 4. Binding 11 includes a binding plate 13, clamp 28
and cla}np retainer 29. Binding plate 13 includes a pair of opposed
upwar<Ily ext~nding side walls 15 and pins 31. Clamp 28 is pivotalby
carried by the side walls l5, snd clamp retainer 29 is spring biased into
a locking position onto clamp 28. A toe extension 17 o~ sole plate
35 member 2 has a plurality of apertures 33 for ~lignment with pins 33.
-- 8 -
To ~ttach sole plate member 2 to ski 30, elamp ret~iner 29 is moved
to release clamp and clamp 28 is pivoted upward. Toe extension 17 is
slipped b~tween ~ide walls 15 ~nd pins 31 pass into apertures 33.
Thereafter clamp 2~ is pivoted downward on top of toe extension 17
5 and secured in position by claim retainer 29.
Sole pi!ste member 2, illustrated in Figures 1-4, is designed to be
used with the conventional toe binding 11 which includes binding plate
13 having side w~lls 15 of the type "Rottefella."* Front portions 10a and
10b of the l~teral portions 10 and 12 therefore should be thinned off in
10 the front, such that the thickness of the ridges 6 ~nd ~ in this area
approaches zero adjacent the junction point with the protruding parts
of binding plate 13. See Figure 2. Otherwise, sole plate member 2 in
this ~rea would be pressed upwards, so that its bottom face would not
come into eontact with binding plate 13. In some instances, however,
15 groove 4 rnay extend forward to engage ~nd straddle the side faces of
the ski in the vicinity of side walls 15, since these wal~s norm~ly extend
somewhat backwards relative to binding plate 13.
In a preferred form of sole plate member 2~ shown in Figures i-
4, opposing side wfllls 6 and 8, defining groove 4, extend from a point
20 slightly rearward of the forwardmost end o~ the shoe upper continuously
to the rear edge of the heel of sole plate member 2. Side walls 6
and 8, however, do not extend into toe extension 17, i.e., that portion
of the sole in front of the shoe upper which is received in toe binding
IL As mentioned above, such continuous side walls provide good lateral
25 ski control through subst~ntially a~l up and down foot motion~ Triangular
shaped ~utouts 19 Rre preferably formed in side walls 6 and 8 in the
forefoot ~rea to add flexibility to sole plate member 2 during w~lking
~nd skiing. Cutouts 19 slso improve traction during walking.
As best seen in Figure 1, the medial intermediate portion (in the
30 arch ~ea) OI sole plate rnember 2 is provided with a later~lly extended
portion 42. Extended portion 42 allows goove 4 to be eontinuously
extended backwards all the way to the heel section of sole plate member
2. Without this lateral extension the sole plate member ~ might typically
fo31ow da~hed lines 44, thus interrupting groove 4. Medial extension 42
35 also provides additional medi~l support for the foot. Thus, the use of
* trade mark
: ~`
~6~4~
_ 9 _
full length sole groove 4 in combination with medial extension 42 provides
a more stable b~se of support under the foot, better balance medially
and laterally over ~he ski, and more direct transmission of medial pressure
from foot to ski when controlling turns with the inside edge of the ski.
5 An extension 43 may also be provided on the later~l side of sole plate
member 2.
~ igures 5 and 6 illustrate another embodiment of sole plate
member a~ in accordance with the present invention. Elements of sole
plate member 2' similar to elements of sole plate member 2 will be
10 indicated by like primed numbers. Sole plate member 2' can be described
briefly since it is the same as sole plate member 2 sxcept for the
extent of ~oove 4'. ~ sole plate member 2', side walls or edges 6',
8' extend to the forwardmost end of sole plate member 2'1 iOe., into
toe extension 17'. Toe bindings in accordance with the present invention,
15 which are ad~pted to accomodate sole plate member 2' are shown in
Figures 8-11.
Other optional feat~es of a sole in accordance with the present
invention ~re shown in Figures 6a and 7. In Figure 6 toe extension 17'
is shown with a recess 16 extending below a tr~nsverse edge 18. Tlle
20 depth of recess 16 can be made in v~rying thickness and the longitudinal
location of transverse edge 18 can be varied to adapt sole plate member
2' to various bindings having binding plates of various thicknesses.
Figure 7 schematically shows a ski boot or shoe 46 which is
provided with R special intermediate buildup or filler 48 along the medial
25 sideO ~iller 48 fills out the sp~ce between the lateral extended portion
42 and the outside of the shoe, and serves as an extelnal extra support
for the foot and for the portion of the shoe resting against the sole
~d the sld. It will be ~derstood that in place OI ~n external
intermediate build up, the ski boot itself can be made with a lateral
30 extension and provided with ~n intern~l build up or support.
Figures 8 and 9 illustr~te an embodiment o a new toe binding
àesign in ~ceordance with the invention, mounted on ~ ski in a ~lamped
position on a ~ross~olmtry ski shoe provided with a sole ~late member
2' in a~cord~nee with the invention. This binding 50 is especially
35 developed to be used in connection with the sole plate member 2'
~18~
- 10 -
embodiment having ~ longitudinal groove extending ~11 the way to the
front or tip OI the sole, i.e. in$o toe exterLsion 17'.
Binding 50 comprises a binding plate 60, a ~It 70, a clamp 72,
and a clamp ret~iner, i.e., a wing nut 76. Pl~te 60 is atta~hed to the
5 top side of the ski 62 by means of screws 63 and has a trRnsverse
upright flange 64 across its front end. Plate 60 includes three
conventional marks or pins 66, of standard type, "nordic norm," for
holding R shoe sole 68, provided with complementary ~qpertures. Upright
bolt 70 is attached to plate 60 and bolt 70 p~sses through a hole in
10 clamp 72. The front edge of clamp 72 has a downwQrdly pointing flange
74 which rests against the inside of the flange 64 on the plate 60.
Wing nut 76 is threaded onto bolt 70. A helical spring 78 is placed
on bolt 70 between clamp 72 and plate 80. A stopper 80 is formed
on the uppermost end of bolt 70. When the shoe is to be fastened
15 is~to binding 50, wing nut 76 is initially screwed upwards. The tip of
sole 68 is correctly positioned below the rear edge of the clamp 72
and is tipped somewhat upwards ~bout a transverse pivot axis which
will extend substantially through the bolt 70, simultaneously ~.e the lower
edge of the fl~nge 74 hits the plate 60. Cl~mp 72 is kept biased
20 against wing nut 76 by means of the spring 78. When sole 68 is
~rranged in binding 50 in engagement with the pins 66, wing nut 76 is
ffghtened ~til the clamp 72 is pressed firrnly against the toe extension
of sole 68. Clamp 72 is pressed directly above the pins 66 and completely
lo~ks the sole. Downwardly poinffng side edges 82 and 84 of sole 68
25 rest against the opposed side edges of plate member 60 and the ski
62. Plate member 60 is preferably designed with a width which
substantiQlly corr~3ponds to the width of the ski.
Another embodiment of binding in accordance with the invention,
which is shown in ~igu, e 10, difIers ~rom binding 50 shown in Pigures
30 8 and 9 substantially in that threaded wing nut 76 on bolt 70 is replaced
by a pivot ~rm 90 journalled on ~ transversely ea~teslding shaft 92
mounted vn the top of bolt 70. Pivot arm 90 is provided with a
substantially circ~ar head 94 which is eccentrically mounted on the
pivot .shaft ~2. In Figure 10 the binding is ~hown în position for ILse,
35 i.e.9 in locked position7 wherein $he pivot arm is pivoted forw~rdly down
to rest against the ski 62. Eccentric head 94 is configured such that
the bi~sing point ~aist clflmp 72 in this locked position is behind the
axis through bolt~70, in other words, it is locked. Bolt 7û is attached
to plate 60 on the ski, suitably ~ith a threaded bushing 96. The
5clamping effect from the pivot arm 90 may be adjusted in a simple
fashion by turning the pivot arm to rotate bolt 7Q and thus move bolt
70 upwards or downwflrds with respect to bushing 96. If the pivot arm,
for example, is turned one full turn to the right, one can obtain an
increased elamping effect grom clamp 72. Clamp 72 has a groove or
10a c~vature 98 in the vicinity above pins 6fi. A transverse line cont~ct
with the shoe sole which further contributes to effective clamping is
thus obtained. C~vature 98 Rlso allows the shoe sole a better opportunity
to attain a curved position during the skiing.
The binding shown in ~igure lU, similar to the binding shown in
15Figures 8 ~nd 9, was especially developed for use in connection with a
sole having A longitudinal groove and downwardly pointing portions 82,
24, along opposed side edges. These bindings may, however, without
alterations also be used in connection with standard soles. The clamps
shown in Figures 8-10 are usually m~de somewhat narrower than the
20front of the sole, such as shown in Figure 9. However, the clamp can
be made with substantially the same width and shape as the front portion
of the sole, and f~ther can have downw~rdly pointing side walls at
opposed sides which straddle against the opposite side edges of the sole.
Such an embodiment of a binding in accordance with the invention is
25shown in Figure 11, which illustrates a binding 58 with an ecc0ntric
pivot arm 90 similar to the one shown in Figure 10~ However, in this
embodiment, clamp 72 is pivo~ly ~ttached to the plate 60 by means
a transverse shaft member 100. Furthermore, clamp 72 has the same
width and form as the ~p port;on of the sole and at its opposite side
30edges is provided with downwardly pointing ~langes or walls 102, 104,
which straddle the tip (toe extension) of the sole. This embodiment of
the binding can be used in ~onnection with the soles in ~ccord~nce with
the invention, ~s well as with v~riolLs forms of standard soles. The
downwardly pointing side walls 102, 104, will then serve the same or a
35~imilar functioll as the usuAl upw~rdly pointing side walls used on stAndard
` ï~86~L4~
-- 12 --
bindingsO
Numerous characteristics and advantages of the inYention have
been set forth in ~he foregoing description, together with details of the
structure and function of the invention, and the novel features thereof
5 are pointed out in the appended claims. The disclos~e, however, is
illustrative only, and changes msy be made in detail, especislly in
matters of shflpe~ size and arrangement ~ parts, within the principle
of the invention, to the full extent indic~ted by the broad general
me~ing of the terms in which the appended claims are expressed.
