WO1992003071A1

WO1992003071A1 - Buckle for shoes, in particular ski boots

Info

Publication number: WO1992003071A1
Application number: PCT/AT1991/000095
Authority: WO
Inventors: Wolfgang Skerbinjek; Gerhard Trinkaus
Original assignee: Koflach Sport Gesellschaft M.B.H. & Co. Kg
Priority date: 1990-08-28
Filing date: 1991-08-27
Publication date: 1992-03-05
Also published as: JPH0793885B2; AT396054B; EP0545965B1; EP0545965A1; DE59103245D1; ATA177190A; JPH05509018A

Abstract

A buckle (1) for shoes, in particular ski-boots, has a first tensioning element (8) and a clamping lever (3) fastened to a first flap (2) and capable of pivoting transversely to the longitudinal direction of the tensioning element (8). A second tensioning element (10) can be linked to the first tensioning element (8) in one position of a plurality of adjacent positions in the longitudinal direction of the tensioning element (8). The second tensioning element (10) is fastened to a second flap (12) other than the first flap (2). The clamping lever (3) and/or the second tensioning element (10) is linked by an eccentric (13) to the respective flap (2, 12). The eccentric (13) has a bearing pin (15) movable in the longitudinal and transverse directions of the tensioning elements (8, 10), allowing precise adjustment of the whole effective length of the clamping buckle (1). The eccentric is formed of a toothed disk upon which is arranged the bearing pin (15) of the tensioning element (10) or of the clamping buckle (3). The toothed disk can be clamped against the respective flap (2, 12) by a pin (17) other than the bearing pin (15) that extends through the toothed disk (13).

Description

Buckle for shoes, especially ski boots

The invention relates to a buckle for shoes, in particular ski boots, with a first tension member and a tensioning lever which can be pivoted transversely to the longitudinal direction of the tension member and is fixed to a first tab and one with the first tension member in one of a plurality of in the longitudinal direction of the tension member adjacent positions comparable I _Q bindable second tension member, said second tension member is fixed to a different from the first flap second flap, the fixing to the respective flap of an eccentric takes place, the loader axis is displaceable in the longitudinal direction and transverse direction of the tension members.

- ^ Buckles of the type mentioned are used, for example, to lock ski boots, wherein a lapping of a shoe is tensioned against another rag. The closing force is so incorporated in the instep and Schaft¬ section substantially transverse to the longitudinal axis of the shoe and _(~ _ in the circumferential direction of the Querschnittεkontur, whereby a relatively accurate adaptation to the respective Fu is £ possible. In order over -derartige circumferential forces transverse to the shoe longitudinal direction of a To be able to apply the appropriate tension, a relatively stable construction of the buckles is generally required, and both the fixing of the tension members and the tension members themselves are subjected to high forces. When using plastics as material for the shell parts of the flaps to be connected and as Material for the tensioning levers and tension members is subject to high stresses on the respective bearing points or fixing points, especially at lower temperatures, plastics tend to become brittle, so that the anchors are torn out to fix the tensioning lever or the tension member and the Tension member in the area the articulation points can come. AT-PS 304 306 already shows a buckle for ski or mountain shoes, in which the drawbar is adjustably arranged by means of an intermediate piece in a holder fastened to the lock. When the shoe is closed, a tensioning lever arranged on the other closing lobe and provided with catches engages in the pull strap.

Tensioning buckles of the type mentioned at the outset are known in principle _Q , ladder-like hook strips being known for connecting tension members which interact with one another in mutually different, adjacent positions. Such hook strips allow the buckle to be fixed in a plurality of positions, which, however, are at least offset from one another by the distance,

LZ) which, taking into account the required stability, is required as the material thickness for the teeth of such a hook strip. As a result, the closing force of such buckles can only be adjusted in stages and cannot be adjusted continuously. In order to enable a continuous adjustment of the closing force in such G buckles, it has become known to connect a tension member to a tensioning lever via a bolt thread. By turning such a tension member, the effective length can thus be adjusted and a certain degree of fine adjustment can be achieved in the area between the distance between adjacent hooks 5. Due to the arched outer contour of the shoe, it is also necessary in such designs to turn the tension member through 360 ° in order to again enable a secure engagement in the hook strip. Such a 360 ° adjustment corresponds to a change in length by a complete thread, so that even with these designs, continuous fine adjustment is not possible. The relative rotatability of the tension member to the tendon also leads to the fact that when the buckle is in the open position an automatic rotation can occur, which complicates the closing process of the buckle because the correct position for inserting the tension member into the hook strip of the second tension member must be sought again. Usually either flexible straps or wire brackets are used as tension members, and in such cases, relatively wide components were required in consideration of the required closing force.

The invention now aims to further develop a buckle _j aforementioned type 0 in that a konti¬ ous adjustment of the effective locking length is readily possible, while at low structural dimensions, particularly in low expansion in the longitudinal direction of the shoe, a stable connection of two Lapping with each other is achieved. The present invention further aims. The aim is to avoid overloading the bearing points for such a tension member or for a tensioning lever and to ensure a certain degree of relative rotation of the individual parts with respect to the buckle even when all the buckle parts are made of plastic, without the risk of tearing out to increase such bearings. To solve ^* this task is the inventiveness proper buckle essentially in the fact that the eccentric is formed by a toothed plate on which the bearing axis of the tension member or clamping buckle is arranged, and that the toothed disk via a tensioning member with a direction different from the bearing axis , the tooth plate passing through the axis can be clamped against the respective tab. Characterized in that the eccentric is formed by a tooth plate, on which the bearing axis of the tension member or the tensioning buckle is arranged, and that the tooth plate can be tensioned against the respective tab by means of a tension member with an axis different from the bearing axis and passing through the tooth plate created the possibility of changing the effective length of a tension member by relative rotation, such a change being made steplessly possible by means of such an eccentric. The toothed plate can be held securely in the respectively desired position by pressing against a locking lobe, and the eccentric effect results from the fact that the circumference of such a toothed plate, on which the tensioning buckle or the tension member is pivotally mounted, by turning about the axis of the tensioning member can be moved in the longitudinal direction of the tension member or the tendon. This significantly larger scope now also means that the

10 bearing forces are better absorbed, and even when training hook strips made of plastic or parts of tension member or tension buckle made of plastic, the risk of overstressing is significantly reduced. In principle, the tooth plate can be pressed against the underlying locking flap by a screw which ^engages in a ^{nut thread} connected to the ^{iD locking flap} . According to a preferred development of the inventive tensioning buckle, the configuration is however so arranged that the clamping member for the toothed plate by a pivot on the tensioning member hinged ^'and be raised to the tooth plate supported lever and is formed lowered, thereby u by raising and lowering the clamping member the rotation of the eccentric around the axis of the tendon is facilitated or blocked.

The construction according to the invention is particularly suitable for buckles which consist exclusively of plastic parts, only the respective pivot axes of the tension member on a bearing component and the pivot axis of the first tension member on the tension lever as well as, for example, a rod-shaped locking member for insertion into a hook bar made of metal can exist. In order to ensure a high degree of stability with small dimensions in the case of such plastics, the design is advantageously made such that the first tension member connected to the tensioning lever is formed by an essentially rigid part that is curved in cross section. Such a tension member, which is curved in cross section, can have high tensile forces with small dimensions record and can also be curved in the view transversely to the Zug¬ direction also in order to enable good adaptation to the outer contour of a shoe in this way with rigid design. The double curvature leads to a high degree of stability and tensile strength in the smallest dimensions.

As already stated above, for the rough adjustment of the closing force, the design can be made in a manner known per se so that the second tension member that can be connected to the first tension member is designed as a hook strip with a plurality of hooks lying next to one another in the longitudinal direction of the second tension member. In order not to impede a certain degree of pivoting at the points of fixing the tensioning lever or tension member and to ensure an exact adjustment in each closed position of the tension member in such a design with the tension member arched in cross section, the training is advantageously made such that that the first tension member in the projection onto the second tension member has an arcuate end and the second tension member has an arcuate shape corresponding stop for the first tension member in the eccentric position of the hook bar. In the closed position, with such a design, the two tension members can be adjusted to one another with the shortest possible adjustment and thus with a maximum closing force, an essentially closed outer contour can be achieved, which results in a lower risk of injury. The risk of injury can be further reduced by the fact that the eccentric cooperates with the hook strip and is arched in cross-section outside the area having the hooks, which moreover achieves a particularly aesthetic outer contour.

The tensioning buckle according to the invention for shoes, in particular ski shoes, is explained in more detail below on the basis of exemplary embodiments schematically illustrated in the drawing. tert. 1 shows a section through a buckle according to the invention in a partially opened state; 2 shows a view in the direction of arrow II of FIG. 1 on the buckle in the closed state, FIG. 1 representing a section along line II of FIG. 2; 3 shows in an exploded view the eccentric and the tensioning element of the tensioning buckle in the embodiment according to FIGS. 1 and 2, and FIGS. 4 and 5 show a modified embodiment of an eccentric as well as a tensioning element for ^" fixing the same in or lifted off the flap or with this connected position.

The buckle 1 shown in FIGS. 1 and 2 comprises a tensioning lever 3 fixed to a first tab 2 of a ski boot, which is pivotable about an axis 4 on an anchor component fixed with the tab 5, for example via riveting or screwing 5 or bearing component 6 is articulated. A tension member 8 is pivotally attached to the tensioning lever 3 about a further axis 7, the tension member 8 being formed by an essentially rigid and curved part, which at its end facing away from the pivot axis 7 has a locking member formed by a bolt or an axis 9 for cooperation with a second tension member 10. The first tension member 8 is hollow in the area in which the second tension member 10, which is designed as a hook strip with saw tooth-like projections 11, is immersed in or overlapped by the saw teeth 11 in cooperation with the saw teeth 11, or is overlapped by it. tunnel-shaped. The second tension member 10 can be attached to a tab 12 different from the first tab 2, an eccentric 13 being provided for a displacement in the longitudinal direction of the tension members 8 and 10 for fine adjustment of the entire effective length of the tensioning buckle 1, which Tooth plate is formed, the teeth being indicated at 14. The tooth plate or the eccentric 13, the axis denoted by 15 is enforced by a tendon 16, the axis 17 of which is different from the axis 15 of the eccentric. ' The eccentric is rotatably mounted in a recess 18 of the tension member 10, which is dimensioned large to absorb the forces over a large area, the fixing in this embodiment being carried out by screwing the tension member 16 in an abutment component 19 provided in the tab 12. as will be seen in more detail with reference to FIG. 3. According to the relative position of the axes 15 and 17 to one another, the tension member 10 is displaced in the sense of the double arrow 20, so that any fine adjustment of the entire effective length of the tensioning buckle is made possible. After the desired length has been set by rotating the eccentric 13 in the recess 18, a screwing of the tensioning member 16 in the abutment component 19 results in a press-fitting and thus a secure fixing of the eccentric 13 on the surface of the flap 12 via the toothing 14. The distance between the axes 15 and 17 or ^' the maximum possible adjustment path when the eccentric is rotated is selected such that it is at least equal to the distance between two teeth 11 of the tension member 10, in order to actually make a fine adjustment over the entire, between two teeth 11 to allow lying area.

In the closed position of the tensioning buckle shown in FIG. 2, the shortest possible position is shown via the bolt 9 in cooperation with the teeth 11 of the tension member 10. It can be seen that the first tension member 8, which interacts with the tensioning lever 3, has an arcuate end 21 which interacts with a corresponding stop 22 of the second tension member 10, which has a corresponding contour, so that an essentially flush surface of the buckle results in the closed state. In the illustration according to FIG. 2, the eccentric is also arranged in the position in which the shortest possible total length is the tensioning buckle 1 results, as can be seen directly from the relative arrangement of the axis 15 of the eccentric plate 13 and the axis of the tensioning member 16.

In the representation according to FIG. 3, it is clearly evident that the tensioning member 16 passes through the eccentric 13 designed as a toothed plate, a thread 23 being indicated for screwing or fixing in the abutment component 19. The flap 12 was not shown in this illustration for the sake of clarity.

In the embodiment according to FIGS. 4 and 5, a modified tendon is shown for the eccentric 13, which in turn is designed as a toothed plate, in which case the tendon formed by a bolt or tube 24, the axis of which is again designated by 17 , from a about an axis 25 pivotably articulated on the eccentric lever 13, which is 26 in the direction of the double arrow 27 is movable, which can be raised in the sense of the double arrow 28 and lowered ^'. The movement of the tensioning member 24 in the sense of the double arrow 28 takes place through an eccentric arrangement of the axis 25 in the lever 26, and by folding the lever 26 a component 29 connected to the tensioning member 24, which is similar to the flap (not shown) Abutment component 19 is connected, is pressed against the teeth 14 and thus a secure fixing of the eccentric 13 takes place. As in the previous exemplary embodiment, the eccentric or toothed plate 13 can in turn be rotated in a recess in the tension member 10 (not shown in more detail) about the axis 15 for fine adjustment of the overall length. Furthermore, the eccentric 13 has an arched outer contour 30 which is essentially flat in the closed state.

In addition or as an alternative to fixing the tension member 10 via an eccentric with an associated possibility of fine adjustment of the relative position and thus the overall Length of the tensioning buckle, the tensioning lever 3 or its component 6 fixed on the tab 2 can also be displaceably fixed in its position via an eccentric instead of the fixing 5.

Claims

Claims:

1. Buckle (1) for shoes, in particular ski boots, with a first tension member (8) and a tension lever (3) which can be pivoted transversely to the longitudinal direction of the tension member (8) and is fixed to a first tab (3) and with the first tension member ( 8) in a _Q second tension member (10) connectable from a plurality of positions lying next to one another in the longitudinal direction of the tension member (8), which second tension member (10) is fixed to a second tab (12) different from the first tab (2), the Fixing on the respective tab (2, 12) takes place via an eccentric (13), the bearing axis (15) of which can be displaced in the longitudinal and transverse directions of the tension members, characterized in that the eccentric (13) of

- A tooth plate is formed, on which the bearing axis (15) of the tension member (10) or the clamping buckle (3) is arranged, and that the tooth plate via a clamping member (16) with a different from the bearing axis (15), the tooth plate (13) penetrating axis (17) can be clamped against the respective flap 0 (2.12).

2. Buckle according to claim 1, characterized in that the tendon (16) for the tooth plate (13) by a swiveling bar on the tendon (16) articulated and on the tooth plate (13) supported lever (26) can be raised and lowered trained.

3. Buckle according to claim 1 or 2, characterized in that daε with the tensioning lever (3) connected erεte tension member (8) is formed by an arched in cross section, substantially rigid part.

4. Buckle according to claim 1, 2 or 3, characterized gekennzeich¬ net that daε with the first tension member (8) connectable second tension member (10) is designed as a hook bar with a plurality of in the longitudinal direction of the second tension member adjacent hooks (11).

5. Buckle according to one of claims 1 to 4, characterized gekenn¬ characterized in that the first tension member (8) in the projection onto the second tension member (10) has an arcuate end (21) and daε second tension member (10) one of the arcs ¬ shape corresponding stop (22) for daε first tension member (8) in the eccentric (13) adjacent position of the hook bar.

6. Buckle according to one of claims 1 to 5, characterized gekenn¬ characterized ^• that the eccentric (13) cooperates with the hook bar and is arched in cross-section outside of the area of the hooks (11).

1991 08 26 / kn