JPS596002A - Outside shoe sole for cross country ski boots - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an improved sole for a cross-scan ski axle, and one embodiment of this improved shoe has a toe that is particularly suitable for use with children. Also relates to fasteners.

In recent years, the development of cross-country skiing has resulted in the use of reliable, extremely lightweight ski equipment, including lightweight shoes, skis, and bindings.

Regarding soles for cross-country ski shoes, the use of leather has been replaced by synthetic materials such as rubber and plastics, such as nylon. Various types of toe fasteners have become lighter and lighter with particular reference to the development of so-called "snavel" or nose-dip shoes in which the distal or protruding end of the sole is routed to the toe fastener. It has been miniaturized.

These developments have resulted in lightweight and comfortable equipment, particularly for racing skis. At the same time, however, as a result of these developments, a reliable and torque-tight connection between the shoe and the ski can be obtained, providing a reliable and torque-resistant connection between the shoe and the shoe itself. A great deal is achieved in that lateral movements are avoided.

Such lateral movement occurs because the heel portion of the shoe becomes somewhat displaced from its support on the ski, making skiing unstable and uncomfortable. To overcome this problem, attempts have been made to develop better toe bindings and various types of heel supports to prevent such lateral movement of the shoe. In modern times, very light and thin Kuromekan l-relays shoes made from textile materials with more or less elasticity and narrow and light skis are used, so that the shoes on the skis are The need for solid support is even more important. Many different solutions have been proposed to improve the pressing of the support onto the ski and the fixation of the shoe. For example, the front of the sole of the shoe is secured in a toe-squeeze that includes a clamp, a sidewall or ear, and an upwardly extending bottle.

A toe extension of the point or sole is placed between the side walls, the bottle projects into an opening provided in the toe extension and the clamp secures the toe extension in position. Several types of commercially available fasteners are now available with standardized soles.
Special types of commercially available fasteners are also available. Additionally, various types of heel supports are currently in use. One type of heel support uses a V-shaped groove in the heel of the sole that fits around complementary square-shaped projections attached to the ski.

Other prior art techniques include transversely or longitudinally extending grooves or the like in the surface of the sole between the toe and heel. Norwegian Patent No. 140,325 discloses a cross-country ski boot sole having a pair of longitudinal grooves or ridges adapted to receive opposite edges of the ski. ing. These grooves or ridges are located in the forefoot portion of the sole.

SUMMARY OF THE INVENTION The present invention relates to an outer sole for a cross-country ski axle. The outer sole includes a sole plate member;
This sole plate member has a toe portion, an a foot portion, an arch portion, a heel portion, an upper surface for attaching to the upper of the shoe, and a lower surface for contacting the ski. The lower surface has a pair of transversely spaced longitudinally extending sidewalls defining longitudinally extending grooves therebetween. The sidewall is wide enough to receive the ski so as to extend around the sidewall of the ski. extending through the part.

The sole according to the invention optimizes satisfactory lateral support if the engagement between the shoe and the ski is always present, even during skiing movements when the shoe is bent up from the ski. It consists of the condition that it can be done.

A cross-scan according to the invention - soles for relay axles are generally dimensioned so that substantially the entire sole, from the toe to the heel, grips around opposite edges of the ski. It has a continuous depression or ``groove''. In one embodiment, the sole extends from just behind the toe extension to the heel edge. In other embodiments,
The groove extends into the toe extension. Regardless of whether the groove extends into the toe extension part or not, by extending continuously from the toe part of the midsole to the edge of the heel, it is necessary to have a heel part with a ■-shaped protrusion. will be eliminated. The coupling of the shoe to the ski is thus simplified and fewer elements need to be attached to the ski. Since fewer elements need to be attached to the ski, the chance of weakening the ski due to attachment of elements to the ski is reduced. and the advantage that the correction mechanism, i.e. the edge of the sidewall extending around and engaging the side of the ski, tends to align the shoe laterally with the ski during the up-and-down movement of the bulk of the foot. have.

In embodiments in which the groove extends into the toe extension of the sole, the side wall of the groove, which fits into the binding, grips the edge of the ski. A toe binding specifically adapted to this embodiment of the sole is also part of the invention disclosed herein.

There are therefore two embodiments of the sole according to the invention: a first embodiment adapted to fit standard toe bindings, in which the groove does not extend into the toe extension; and a groove extends into the toe extension. 1 is one embodiment adapted for a new fastener according to the present invention.

The recess or groove provided in the sole should preferably be deep, for example having a depth of about 10% of the width of the ski, or about 5 mm for a normal or low country ski. The sides of the recess should extend at right angles to the surface of the sole or slightly inclined outwards so that a centering effect occurs when the shoe is placed downwards on the ski. It is. Since the ski boot is generally in some degree of engagement with the ski at all times, it is not necessary to use a separate heel brace. Preferably the sole should be of the "snavel type", with a forwardly directed extension provided with the usual apertures for the pins positioned on the fastening plate. Should. Otherwise, other fixation devices may be used.

Industrial standard [Nordic gnome] Toe fastener 75
In the case of a shoe sole embodiment that is used with a 50mm extended toe and a 50mm extended toe, the thickness of the forward jetty should be towards zero at the point where the sole becomes engaged with the binding armature. It should be reduced. Otherwise, the sole would be pushed up by the base plate of the binding. This embodiment can also be made for use with most any toe fastener.

A further novel feature of the sole according to the invention is that the longitudinal extension of the sole, i.e. the arch area, in particular on the medial side of the foot, is located at the center of this groove or recess placed in the sole. having a lateral enlargement or extension to a defined extent so that it can be extended continuously rearward through the (arch) part to the heel part of the sole, thus on both sides of the sole. A continuous engagement between the ski and the sole is obtained. Moreover, evenly distributed and complete support is obtained between the sole and the ski. This lateral extension, particularly at the mid-side, provides additional lateral support to aid in the ski's edging.

This means that the central area is quite narrow, so that the central band of the sole has no or very little support for the ski. Noticeably different.

A further feature according to the invention regarding the lateral extension of the sole is that the shoe above the lateral extension of the sole can be stacked or provided with a special stack.

The present invention also includes a new type of toe binding that is compatible with soles in which the groove extends all the way to the tip of the sole into the toe extension. The toe binding according to the invention is generally characterized simply in that it has a clamping fitting which can be fixed in a clamping position against the tip of the sole.

In one preferred embodiment of the fastener according to the invention, the clamp fitting includes a front guide that prevents lateral movement of the clamp fitting.

In one embodiment, the clamp fitting is pivotally supported on a transversely extending bolt or the like within a binding armature mounted on the ski. In another embodiment, laterally extending guides in the form of flange elements are provided on the clamp fitting and on the plate armature A7 attached to the ski.

A fastener according to the invention may include various mechanisms for tightening and fixing the clamp armature against the tip of the sole. In one embodiment, a threaded bolt is attached to the plate armature in conjunction with a wing nut that rests on the clamp armature and is tightened. Other embodiments are eccentrically pivoted.

One embodiment of a binding according to the present invention differs significantly from prior art bindings in that the plate armature attached to the ski extends into a toe extension that spans both edges of the ski. The prior art lateral lugs are adapted to rest on both side edges of the sole, so that the sole is completely fixed against lateral movement by means of special grooves provided in the shoe sole. It is made without. Furthermore, the sole can be designed with an opening that engages a complementary pin or the like attached to the cinch plate armature. In another embodiment of the fastener, the prior art side lugs on the plate armature are attached to the clamp armature.
17-Replaces the downward facing side lugs installed above. These oriented lateral lugs overlie the toe extensions of the sole, which include opposing edges extending beyond the edges of the ski.

This embodiment applies not only to the special sole according to the invention, in which this fastening fits into the tip of the sole and forms a longitudinal groove or recess, but also with ski soles of the prior art. It has the particular advantage of being able to be used.

Various novel advantages and features of the present invention will be more readily understood from the following description taken in conjunction with the accompanying drawings.

In FIGS. 1 to 4, in which like numerals indicate like parts, a sole plate member according to the invention is designated generally at 2. In FIGS. The sole plate member 2 is preferably molded from plastic or rubber or a plastic-like material. The shaft plate member 2 can be divided into a number of parts that are related to each other depending on the foot part positioned above each part. For example, the toe part is positioned between lines L2 and 13;
The annot portion is positioned between lines L2 and L3; and the arch portion is positioned between lines L3 and 14; the heel portion is positioned behind line Ll; and the toe extension is positioned between lines [1]. positioned forward. The sole plate member 2 has a longitudinally extending linear recess or bottom portion defined between a pair of mutually opposing, transversely spaced edges or sidewalls 6 and 8. "Mizo" 4
have. The side walls 6 and 8 extend perpendicular but substantially perpendicular to the plane of the sole plate member 2 or to the bottom surface of the groove 4, ie at a slight outward angle thereto. The bottom of groove 4 is designed to rest against the top of the ski.

The width of the groove corresponds to the width rBJ of the ski to be used with this sole. The side wall 6.8 thus extends around the side wall of the ski. Preferably, the sole plate member 2 is formed from two parts 3 and 5 which are fixed to each other. Preferably, the piece 3 is formed from a thermoplastic that is flexible but still sufficiently rigid to provide the necessary torsional stability. Piece 3
is attached to the shoe upper. The piece 5 is preferably formed from a thermoplastic or rubber-like material, preferably having the anti-skid properties of rubber. The piece 5 is provided with a longitudinal groove 4.

The depth of the contour of the groove 4 is indicated in FIG. However, on average it should have a depth of about 4 to 7 mm. The depth of the grooves may, if desired, increase gradually in the direction 1 in the heel region, as illustrated by the dashed line 9 in FIG. The front toe sole plate member 2 and the groove 4 can be varied depending on the type of toe binding used.

Typical Los Country Skis 30 with Fasteners 11
The attachment of the sole plate member 2 to the shoe to which the sole plate member is attached is illustrated in FIGS. 2 and 4.

The fastener 11 includes a fastening plate 13, a clamp 28, and a clamp holder. The clamp 28 is pivotally carried by the side wall 15 and the clamp holder 29 is spring biased into a fixed position on the clamp 28. The toe extension 17 of the sole plate member 2 has a plurality of openings 33 for alignment with the bins 33. To attach the sole plate member 2 to the ski 30, the clamp retainer 2 is moved to release the clamp, thus causing the clamp 28 to pivot upwards. Toe extension 17 is slid between side walls 15 and bottle 31 enters opening 33. Clamp 28 is then pivoted downward onto the top of toe extension 17 and secured in place by clamp retainer 29.

The sole plate member 2 illustrated in FIGS. 1-4 is designed for use with a prior art toe binding 11 that includes a fastening plate 13 having a side wall 15 of the "Lotsutefuera" type. The lateral parts 10 and 1 are designed accordingly.
The front part IQa and 10b of 2 should be thinned in the front such that the thickness of the jetties 6 and 8 in this area approaches zero near the point of connection with the protruding part of the clamping plate 13. It is. (See Figure 2). Otherwise, the shoe sole 2 in this area would be pushed upwards - such that its bottom side would not come into contact with the fastening plate 13. However, in some instances, since the side walls 15 normally extend somewhat rearward with respect to the clamp plate 13, the grooves 4 extend forward to engage and straddle the sides of the ski near the edges of these side walls 15. It's okay.

In the preferred type of sole plate member 2 illustrated in Figures 1-4, the side walls 6 and 8, opposite each other and defining the groove 4, are located at a point just behind the forward-most edge of the upper. It extends continuously from to the rear end edge of the heel portion of the sole plate member 2. However, the side walls 6 and 8 do not extend into the toe extension 17, that is, the part of the sole in front of the upper that is received in the toe binding 11. As mentioned above, this type of continuous sidewall provides good lateral ski control through virtually all up and down foot movements. In order to add flexibility to the sole plate member 2 during walking and skiing, cutouts 19, preferably 3' square in shape, are preferably formed in the side walls 6 and 8 of the forefoot area.

Notches 19 also improve friction during walking.

As clearly shown in FIG. 1, the intermediate portion of the sole plate member 2 (in the arched area) has a laterally extended portion 42. This extension allows the groove 4 to extend continuously rearward all the way to the heel portion of the sole plate member 2. Without this lateral extension, the sole plate member 2 would typically follow the dashed line 44, thus interrupting the groove 4. Median extension 42 also provides additional medial support for the foot. Thus, the use of a full-length sole groove 4 in conjunction with the intermediate extension 42 provides an extremely stable base of support under the foot, good balance medially and laterally throughout the ski, and the medial side of the ski. When controlling rotation at the edge,
It provides a very direct transmission of intermediate pressure from the foot to the ski. Extensions 43 may also be provided on the sides of the sole plate member 2.

5 and 6 show another embodiment of a sole plate member 2' according to the invention. Elements of the sole plate member 2' that are similar to elements of the sole plate member 2 will be designated by like numerals with a prime sign. The sole plate member 2' is the same as the sole plate member 2, except in the area of the groove 4', and will therefore be described briefly. In the sole plate member 2', the side walls or edges 6', 8' extend to the forwardmost end of the sole plate member 2', ie to the toe extension 17'. A toe fastener according to the invention adapted to fit a sole plate member 2' is illustrated in the figures from FIGS. 8 to 11.

Other special features of the sole according to the invention are in Section 6a.
As illustrated in FIGS. In FIG. 6, a toe extension 17' is shown having a recess 16 extending below the transverse edge 18. The depth of the recess 16 can be varied to create a variety of thicknesses, and the longitudinal position of the transverse edge 18 can be adjusted to accommodate a variety of fasteners having various thicknesses of the sole plate member 2. ′ can be changed to suit.

FIG. 7 schematically shows a ski boot 46 with a special filling 48 along the middle side. Filler material 4
8 fills the void between the lateral extensions 42 and the outside of the shoe and serves as extra external support for the foot and the part of the shoe that rests on the sole and ski. external intermediate fulfillment v4
Instead of the moon, this ski boot itself can be made with lateral extensions and also provided with internal support.

FIGS. 8 and 9 show a ski according to the invention mounted in a fastening position on a cross-country ski boot having a sole plate member 2' according to the invention. An example of a new toe fastener design is illustrated. This fastener 50 is adapted to be used in conjunction with an embodiment of the sole plate member 2' having a longitudinal groove extending all the way to the front or tip of the sole, i.e. into the toe extension 17'. Especially developed.

The fastener 50 consists of a fastening plate 60, a bolt 70, a clamp 72, and a clamp retainer or wing nut. The root 60 is attached to the top surface of the ski 62 with a screw 63 (
tG) and has a transverse upright flange 64 across the forward end.

Plate 60 includes three standard, Nordic gnome, prior art pins 66 for holding a sole 68 provided with complementary openings.

An upright bolt 70 is attached to plate 60 and passes through a hole provided in clamp 72. The front edge of clamp 72 has a downwardly directed flange 74 that bears against the inside of flange 64 on root 60. Wing nut 7B is screwed onto bolt 70. A spring 78 is placed on the bolt 70 between the clamp 72 and the plate 60. A stop 80 is formed at the uppermost end of bolt 70.

When the shoe is to be fastened into the binding 50, the wing nut 76 is first screwed upwards.

When the tip of the sole 68 is properly positioned below the rear edge of the clamp 72 and the lower edge of the flange 74 abuts the plate 60, the transverse pivot 1 extending substantially through the bolt 70 is moved somewhat about the axis. tilted upwards.

Clamp 72 is pressed against wing nut 76 by spring 78. When the sole 68 is arranged within the fastener 50 in engagement with the bottle 6, the clamp 72
The wing nut 76 is tightened until it is firmly pressed against the toe extension of 8. Clamp 72 is pressed directly over bottle 66 and completely securely covers the sole. sole 68
The downwardly directed side edges 82 and 84 rest against the opposite edges of the plate member 60 and the ski 62. Preferably, the plate member 60 is designed to have a width that substantially corresponds to the width of the ski.

Another embodiment of a fastener according to the invention, illustrated in FIG. The fastener 50 shown in FIGS. 8 and 9 differs in that it is replaced by a pivot arm 90 which is journalled on an elongated shaft 92. Pivot arm 90 includes a substantially circular head 94 eccentrically mounted on pivot shaft 92 . In Figure 10, this fastener is
The pivot arm is shown in the use position pivoted forward against the ski 62, ie, in the fixed position. The eccentric head 94 is formed in such a shape that the point at which it presses against the clamp 72 at this fixed position is behind the axis passing through the bolt 70, in other words, it is fixed. The clamping effect from the pivot arm 90 rotates the bolt 70, thus forcing the bolt 70 into the bushing 96.
The pivot arm 90 can be easily adjusted by rotating the pivot arm 90 to move it up or down. for example,
When said pivot arm is rotated one complete revolution (toward the right), an increased clamping effect is obtained from the clamp 72. Thus, a transverse line contact with the sole is obtained which further contributes to effective fastening.The curved portion 98 also provides a good opportunity for the sole to achieve a curved position during skiing.

Similar to the fasteners shown in FIGS. 8 and 9, the fastener shown in FIG. 10 has longitudinal grooves and downwardly directed portions 82. along opposite side edges. 24
Specifically developed for use in conjunction with shoe soles having. However, these fasteners can equally be used in conjunction with standard soles without modification.

Usually the clamps shown in Figures 8-10 are
As shown in the figure, the width is made slightly narrower than the front part of the sole. However, the clamp can be made of substantially the same width and shape as the front portion of the sole, and can further have downwardly directed side walls on opposite sides that press against and straddle opposite edges of the sole. can. One embodiment of this type of fastener according to the invention is illustrated in FIG. 11, which illustrates a fastener 58 having an eccentric pivot arm 90 similar to that shown in FIG. .

However, in this embodiment, the clamp 72
00 is pivotally attached to the plate 60. Furthermore, the clamp 72 has the same width and shape as the tip of the sole, and its opposing edges are downward flanges or u102.10 that straddle the tip (toe extension) of the sole.
It has 4. This embodiment of the binding can be used in conjunction with a variety of standard soles as well as soles according to the invention. Downward side wall 102.10 above
4 functions the same or similar to the normal upward facing sidewalls used on standard fasteners.

Although the detailed structure and function of the present invention as well as numerous features and advantages of the present invention have been described above in detail with reference to embodiments, various changes may be made to the embodiments described above without departing from the spirit and scope of the invention. Of course, it can be done.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of a shoe sole according to the present invention;
Figure 2 is a longitudinal sectional view taken along line 2-2 in Figure 1, illustrating the sole mounted on a ski, and Figure 3 is a perspective view of the bottom of the sole in Figure 1. 4 is a top plan view of the toe extension of the sole of FIG. 1 attached to a ski with a prior art binding; FIG. 5 is a top plan view of the toe extension of the sole of FIG. 6 is a perspective view of the bottom of the sole of FIG. 5; FIG. 6a is a perspective view of a fragment of the tip of a variant of the sole according to the invention; FIG. 7 is a perspective view of the bottom of the sole of FIG. 5, and FIGS. 8 and 9 show a ski binding according to the invention coupled to a ski boot having a sole according to the invention. 10 shows another embodiment of the ski binding, a side view similar to FIG. 8, and FIG. 11 shows a further embodiment of the ski binding. FIG. 2 is a schematic perspective view. 2... Sole plate member, 4... Groove, 3.5...
Pieces, 6, 8... Side wall, 10.12... Side portion of shoe sole plate member, 11... Prior art toe fastener, 13... Tightening plate, 15... Side wall, 17...
Toe extension part, 19... Notch, 28... Clamp, 2nd... Clamp holder, 30... Cross country type cedar-1 31... Bin, 33... Opening, 42・・・
- Lateral extension part, 43... Extension part, 46... Ski boot, 48... Filler material, 50... Fastener,
60... Board, 62... Ski, 63... Screw, 66... Pin, 70... Pol 1~. 7
2... Clamp, 74... Flange facing F. Agent Asamura Kogai 4 personsFIG/1 Procedural amendment (method) Date of 1956/70/t9 Mr. Commissioner of the Japan Patent Office 1, Indication of the case 1988 Patent Application No. 107tg% No. 3, Amendments to be made Relationship with the patent applicant case 4 Patent agent 56 Date of amendment order February 2S, 1939 6 Number of inventions increased by amendment 7 Subject of amendment

Claims (1)

[Scope of Claims] (1) An outer sole for a cross-country ski shaft, including a toe portion, a forefoot portion, an arch portion, a heel portion, and an upper surface for attachment to the shoe upper; a sole plate member having a lower surface adapted to contact a ski, the lower surfaces being spaced transversely H1 apart from each other defining a longitudinally extending groove therebetween; Ta,
longitudinally extending sidewalls, said groove having a width sufficient to receive a ski such that said groove sidewall extends around a sidewall of the ski; An outer sole configured to extend through parts of the forefoot, arch and heel. (3) In the outer sole as set forth in claim 1 or any one of claim 2, the sole plate member extends inwardly. An outer sole comprising a toe extension adapted to be coupled to a binding. (4) An outer sole according to claim 3, wherein the groove extends into the toe extension. Shoe sole. (5) In the outer sole described in any one of claims 1 or 2, the sole plate member has a lateral extension portion along an intermediate side surface of the sole. (6) an outer sole, the lateral extension extending outwardly past the medial edge of the ski to which the sole is attached and through the arch portion of the sole; (6) a toe portion; , a forefoot portion, an arch portion, a heel portion, a toe extension adapted to be coupled to a ski binding, and an upper surface for attachment to a shoe upper;
In an outer sole for a cross-country skiing axle comprising a sole plate member having a lower surface adapted to contact the ski and a lateral extension of the medial side of the arch portion, said lateral extension. extending past the medial edge of the ski and through the entire arch portion, the lower surface of the sole plate member defining a longitudinally extending groove therebetween; longitudinally extending sidewalls spaced apart in a direction, said groove having a width sufficient to receive a ski extending around said flank sidewall, said groove extending from said toe portion (a) extends through parts of the afoot, arch and heel so that during normal and Roscantoli ski movements, certain portions of the sidewalls of the grooves extend around the sidewalls of the ski to provide lateral stability; Provided J: Outer sole made of sea urchin. (7) In the outer sole according to claim 6, the side wall of the groove is about 4 to 7 inches from the bottom surface of the groove.
An outer sole comprising a depth of between mm. (8) An outer sole as claimed in any one of claims 6 or 7, wherein the bottom surface of the groove is substantially flat over substantially its entire extent. Shoe sole. (9) A cross-country skiing shoe comprising a shoe upper and an outer sole, wherein the outer sole includes a toe portion, a forefoot portion, an arch portion, a heel portion, and a ski tightener. a toe extension adapted to be connected to the device; an upper surface for attaching to the shoe upper; a sole plate member having a lateral extension, the lateral extension extending past the medial edge of the ski and through the entire arch portion, the lower surfaces of the sole plate member being mutually a pair of transversely spaced, longitudinally extending sidewalls defining a longitudinally extending groove therebetween, the groove being such that the groove sidewalls extend around the sidewalls of the ski; The groove is wide enough to receive a ski, and the groove extends from the toe area through the afoot, arch, and tumor areas so that the groove extends during normal and Los Angeles skiing movements. A cross-country skiing shoe comprising a portion of said sidewall extending around the sidewall of the ski to provide lateral stability. (10) A toe fastener for connecting a cross-country ski boot to a ski, comprising: a plate member adapted to be attached to the ski; a clamp adapted to contact the toe extension of the ski boot; a releasable ramp retainer, the plate member having flat side edges that allow portions of the toe extension to extend downwardly around opposite edges of the ski; . (11) The toe fastener according to claim 10, wherein the clamp includes a downwardly extending side wall extending beyond the side wall of the toe extension. .