EP0725577A1

EP0725577A1 - Ski boot

Info

Publication number: EP0725577A1
Application number: EP94930112A
Authority: EP
Inventors: Josef LÖCKER
Original assignee: Koflach Sport GmbH
Current assignee: Koflach Sport GmbH
Priority date: 1993-10-28
Filing date: 1994-10-28
Publication date: 1996-08-14
Anticipated expiration: 2014-10-28
Also published as: WO1995011602A1; JPH09503946A; ATA217893A; AT402679B; DE59405280D1; EP0725577B1; US5718065A

Abstract

A ski boot has a shell (1) and a shaft or a cuff (8). The shell contains two overlapping closing quarters bridged by a tongue-shaped instep cover (4). The closing members (3) engage the shell (1) through outer closing quarters (2) and thus close the inner overlapping closing quarters.

Description

Ski boot

The invention relates to a ski boot with a shell, a shaft and overlapping, overlapping closing flaps, which are opened by locking members, e.g. Buckles are held in the closed position.

For ski boots of the type mentioned, which also as

10 "overlap shoes" are called, the entry takes place via an expandable shaft. In contrast to shoe types, which are referred to as "rear entry shoes" and which, after a tailgate has been folded down, allow entry into a shell which is mostly closed in the circumferential direction in the instep area

With such central entry shoes, which are designed as overlap shoes, closing in the instep area is only possible by bracing the closing flaps against one another. During training with the instep area closed in the circumferential direction, only a limited adaptation to the foot shape is possible.

20 possible, there is usually a better adaptability to the foot in the instep area with lap shoes. Due to the relatively high stiffness of the shell materials for ski shoes, however, such an overlap shoe, in which the closing in the instep area by bracing against each other

25 locking flaps should take place, the entry is relatively difficult since the relatively stiff locking flaps can only be expanded with great effort, especially at low outside temperatures. Analogous considerations apply to the shaft area, which also applies to a central entry at a high level

30 dimensions must be expandable to ensure easy entry with little effort.

The invention now aims to further develop a shoe of the type mentioned in such a way that is at a high level of • _3c adaptability of the shell to the foot shape allows an entry in the shoe with less effort, and gleich¬ early closing and the comfort of the Shoe improved become. To achieve this object, the task according to the invention essentially consists in that the tabs are overlapped by a tongue-shaped instep cover and outside of the projection of the instep cover on the closing tab with others

5 locking tabs are connected, and that the further locking tabs carry the bearing points for the locking members. Because of the fact that a tongue-shaped instep cover is provided in addition to the closing flap, and the closing flaps are connected to further closing flaps, which in turn are the only ones

Wear 10 locking members, a design is made possible in which the shell in the instep area can be made much thinner and thus also more flexible than known constructions. Such a thin-walled and flexible shell can now be much better and

15 easy to adapt to the shape of the foot, whereby the fact that additional locking flaps are connected to the relatively thin-walled and highly flexible locking flaps, the actual locking members can exert their pull on the inner locking flaps without causing pressure points.

20 As with conventional overlap shoes, the external closing flaps thus achieve the closing forces that become effective in the circumferential direction, which result in an exact and better adaptation of the "closing flaps to the shape of the foot, and in that between the overlapping closing members and the

25 tongue-shaped and highly flexible end areas of the overlapping closing flaps are arranged with a tongue-shaped instep cover, the reaction forces of the closing members, which would act as pressure forces in the central area of the instep, are also distributed over a large area,

3 _Q so that pressure points are avoided. Overall, now the Mög¬ obtained by such a tongue-shaped instep cover and acting on the outer closure flaps closing members friendliness, fold abzu¬ the tongue after opening of the closing elements, wherein for the entry only small Aufweit¬ e _t - forces for deforming the thin-walled and highly flexible Closing flaps have to be exercised, which significantly improves the overall entry into such a shoe is, and at the same time due to the flexible and thin-walled design of the locking flap, the fit can be adapted more precisely to the respective foot shape.

For better positioning and, if necessary, adjustment of the tongue-shaped instep cover, the design is advantageously made such that the further closing flaps at least partially overlap the instep cover, which at the same time prevents excessive pressure loads on the tongue-shaped cover by the closing members. In any case, for better force introduction and to maintain the desired high flexibility and low expansion force, the design is such that the further closing flaps and the instep cover have a wall thickness that exceeds the wall thickness of the inside closing flaps, thereby ensuring that even high closing forces can be applied without overstressing the thin-walled and flexible material of the closing flaps.

In order to ensure that the tongue-shaped lid can be folded down safely after opening the closing members and thus to facilitate entry, the design is advantageously made such that the instep lid is connected to the shell at one point in front of the overlapping area of the inner closing tabs preferably the instep cover is designed as a sealing element at the end connected to the shell. In this way, a secure seal is achieved even at the critical point at which overlap shoes traditionally have to reckon with sealing problems, the sealing element engaging over the abutting edge of the overlapping closing flaps of the shell, and thus being able to effect a secure seal.

To further facilitate entry into such an overlap shoe, the design is advantageously made such that the shank of the shell in the shin area as well as in the fibula area each has at least one essentially to the sole has vertical incision, which can be sealingly covered by the instep cover or a pivotable heel flap. In this way, a corresponding expandability of the shaft is ensured, wherein such an expandable shaft can be pivotably articulated in a conventional manner, while at the same time a secure hold and a clear limitation of the swivel angle, in particular a defined limitation of original and reserve, can be realized in a simple manner . For this purpose, the design is advantageously made such that the shaft having the vertical incisions is connected to the shell so that it can pivot to a limited extent against stops.

For easier entry, as already mentioned, the tongue-shaped instep cover is pivotally connected to the shell, the design advantageously being such that the instep cover is pivotable about an axis substantially parallel to the sole and an axis crossing the sole Shell is connected. Such an instep cover ensures the required rigidity and stability with a shell that is extremely flexible and designed to be very comfortable to wear, the characteristics of the shoe being able to be changed by different materials and wall thicknesses of the instep cover.

In order to ensure the appropriate hold even in the Achilles tendon area and in the shaft area despite the high flexibility of the shell, the heel or tailgate mentioned above is provided, the design advantageously being such that the hinged heel flap can be pivoted about the pivot axis of the shaft is attached to the shell. Such a heel flap allows in a particularly simple manner the formation of a so-called "walking, standing mechanism", for which the formation is advantageously made such that the hinged heel flap against adjustable limit stops or adjustable tension members in a first walking or Standing position is pivotable and after loosening the tension member or Unlocking the stop can be folded down into a boarding position.

The invention is explained in more detail below on the basis of an exemplary embodiment shown schematically in the drawing. 1 shows a side view of the ski boot according to the invention; 2 shows a view corresponding to FIG. 1 with the shoe open; 3 shows a section along the line 111 / III of Fig.l; 4 shows a section along the line IV / IV

10 of Fig.l, and Fig.5 shows a section along the line V / V of Fig.2.

In Fig.l, 1 is the shell of a ski boot, and there are fixed on the outside of this shell

-, _£ - Closing flap 2 can be seen, which can be clamped together using tension members 3. The outer closing flaps 2 and the tension members 3 overlap a tongue-shaped instep cover 4, which is connected to the shell 1 in the region 5. To the shell 1, a trunk lid 6 is directed Toggle _n further pivotable, wherein the pivot axis is indicated by 7. A shaft part 8 can also be pivoted about the same pivot axis 7 and can be closed via a buckle 9 in the part facing the instep. Strictly speaking, the shaft represents a kind of sleeve, the required rigidity being ensured by the tailgate 6 in the closed position

25, which itself is held in this closed position by a tension member 10.

In the representation according to FIG. 2, the tension member 10 is open and the tailgate 6 is ver¬ rearward about the pivot axis 7

30 pivots. At the same time, the shaft or the cuff 8 is also opened in its partial area facing the instep, in which it is slit, the buckle 9 being shown in the open position. The buckles 3 overlapping the tongue 4 are also shown in the open position,

35 and it can be seen that the tongue 4 is pivotable to the front, which overall, as can be seen from the illustration Fig.2 clearly shows a large and convenient manhole is released. Since the tension members 3 engage on the inner closing flaps of the shell 1 via the closing flaps 2, which are fixed on the outside of the shell 1, and thus cause the shell to close in the instep region, this inner partial region of the shell 1 can be extremely thin-walled and therefore be highly flexible. The formation of the overlapping closing flaps of the shell is clearly visible in the section according to FIG. 3. Here is the

₁₀ instep area shown in the closed position of the buckles 3, the outer closing flaps 2, which are connected to the thick-walled area of the shell 1, partially overlap the tongue 4. The tongue 4 thus acts as a pressure distribution plate and prevents excessive pressure loading.

- ,, - stress in the sense of arrow 11, as it would be exercised by the tension members 3 in the central area. At the same time, this tongue 4, which takes over the function of a pressure distribution plate, permits a particularly thin-walled design of the overlapping locking tabs 12 and 13, thereby

- .. high degree of flexibility and a particularly good fit is achieved. As is desirable with an overlap shoe, forces such as 12 and 13 are only introduced in the circumferential direction on such locking tabs, as a result of which the particularly favorable adaptation in the sensitive instep area is achieved without excessive pressure being applied. At the same time, the thin-walled and flexible design of the overlapping closing flaps 12 and 13 naturally also improves the tightness in this area.

In the representation according to FIG

30 wide opening of the shaft details clearly shown. In the section according to FIG. 4, the tongue 4 is again visible, which is overlapped by the shaft 14 or the sleeve 8 which has a slot 14 in the instep area. The cuff 8 carries the closing member 9, which in FIG

35 closed form is shown. 15 shows the padded tongue of the inner shoe or the inner lining, whereas 16 represents the padding or the inner shoe in the shaft area.

The shaft 8 also has a slot 17 in the rear area 5, which is encompassed by a closing member 10 which interacts with the tailgate 6. This tension member 10 can be moved into a first open position, which enables the tailgate 6 to be folded down, and can be disengaged from the tailgate 6 by loosening the closing member 18, thereby allowing the tailgate 6 to be folded down completely. In this first position a Gehlage or walking position is thus achieved, whereas after complete dissolution of the Schließ¬ member 18 a complete folding down of the hatchback 6 and thus occupied a particularly easy entry position - _j e may be. The closing member 18 is in turn connected to a tension member 19 which interacts with the closing member 9 of the sleeve or the shaft and in this way bridges the slot 14 in the front region of the sleeve or the shaft 8.

20th

The pivotability of the shaft and the cuff can be seen more clearly in the illustration according to FIG. 5. In FIG. 5 the padding or the inner shoe 16 is again visible, the sleeve or the shaft 8 being pivoted about the pivot axis 7. At 20 the An¬

25 handle point of the rear closing member 10 and the tailgate 6 is additionally pivoted about the pivot axis 8. The pivot axis 7 can be designed in a conventional manner as an eccentric in order to enable an angular adjustment. Anyway, it is

30 training screwed to ensure easy assembly and disposal.

21 shows the area on which the closing member 18 engages, which in the illustration according to FIG

35 is not apparent.

Claims

Claims:

1. Ski boot with a shell, a shaft and overlapping closing flaps which overlap the instep area and which are revealed by open locking members, e.g. Buckles held in the closed position, characterized in that the tongue (12, 13) is overlapped by a tongue-shaped instep cover (4) and outside of the projection of the instep cover (4) onto the closing flap (12, 13) with others

10 locking flaps (2) are connected, and that the further locking flaps (2) carry the bearing points for the locking members (3).

2. Ski boot according to claim 1, characterized in that the -. ₅ further closing flaps (2) at least partially overlap the instep cover (4).

3. Ski boot according to claim 1 and 2, characterized in that the further closing flaps (2) and the instep cover (4) one

20 have the wall thickness of the inner closing flaps (12, 13) exceeding wall thickness.

4. Ski boot according to claim 1, 2 or 3, characterized in that the instep cover (4) at one point in front of the overlapping area of the inner closing flaps (12, 13)

25 is connected to the shell (1).

5. Ski boot according to one of claims 1 to 4, characterized gekenn¬ characterized in that the instep cover (4) is formed at the end connected to the shell (1) as a sealing element.

30

6. Ski boot according to one of claims 1 to 5, characterized gekenn¬ characterized in that the shaft (8) of the shell (1) both in the shin area and in the fibula area each has at least one cut substantially vertical to the sole,

35 which can be sealingly covered by the instep cover (4) or a pivotable heel flap (6).

7. Ski boot according to one of claims 1 to 6, characterized in that the shaft (8) having the vertical incisions (14, 17) has limited pivotability against stops

5 is connected to the shell (1).

8. Ski boot according to one of claims 1 to 7, characterized ge indicates that the instep cover (4) is pivotally connected to the shell (1) about an axis parallel to the sole and an axis crossing the sole.

9. Ski boot according to one of claims 1 to 8, characterized ge indicates that the foldable heel flap (6) about the pivot axis of the shaft (8) pivotable on the shell (1)

, _c is set.

10. Ski boot according to one of claims 1 to 9, characterized ge indicates that the foldable heel flap (6) against adjustable limit stops or adjustable Zugglie-

- r. which (10) can be pivoted into a first walking or standing position and can be folded down into a boarding position after loosening the tension member (10) or unlocking the stop.

25

30

35