JPH04266703A - Lever device for sport footwear, particularly for ski boots - Google Patents

Abstract

PURPOSE: To provide a lever device for a sports shoe, particularly for a ski boot, that can be manufactured from a small number of component parts and is structurally simple. CONSTITUTION: This lever device includes a lever arm 5 provided on at least one appropriate seat 9 provided on one of hanging plates 3. At least one clamping element part 13, 14b for a meshing member provided on the lever arm is connected to the other hanging plate. By inserting the lever arm in the appropriate seat, a high-strength characteristic can be given, and a surface finish is not required because of good aesthetic quality; also, since the lever device is partly hidden, it gives neat aesthetic appearance to the ski boot and eliminates projecting parts, achieving a reduced size.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever device for sports footwear, particularly ski boots.

0002

BACKGROUND OF THE INVENTION At present, several types of levers for use in ski boots are known; for this purpose Italian patent application No. 1039897 filed by the applicant on July 17, 1975 The lever disclosed in this application consists of one arm which is pivotally connected at one end to a pair of shoulders by means of suitable pivots, which shoulders are connected to the shoe rest plate and the rigid connected, said arm having a toothed area that interacts with one end of a hook which, at its other end, connects with the other footplate of the shoe to be closed.

The known lever requires a surface finish of good aesthetic quality since it is visible on the shoe. This lever therefore requires the use of materials, such as aluminum or plastics, which present a fairly aesthetic appearance to the skier, but at the same time are susceptible to the stresses exerted on these materials during the performance of the sport. Also, they do not have the high strength properties necessary to withstand impact.

[0004] In any case, the state in which the lever protrudes from the side of the shoe does not give the shoe a clean aesthetic appearance, and moreover, the lever is prone to snapping when impacted by snow. may cause permanent opening or damage.

As a partial solution to this drawback,
The applicant filed an Italian patent application on January 21, 1976, and has been granted Italian patent No. 1054289, which discloses a closure assembly for ski boots that has a simple structure. However, the closing action is difficult because the manual action area is small and an action force must be applied to that area.

Italian Utility Model No. 185,645, filed on January 20, 1981, also discloses a lever closing device, in particular for motorcycle shoes, in which a lever closing device is rigidly connected to a single flap. At a suitable support, the arm of the lever, which is also pivoted at one end, is inserted into a suitable elongated hole formed on the other base plate to be closed.

Even with this solution, despite the small number of components, there are some drawbacks, such as the direct interaction between the closed plate and the lever arm, which can lead to breakage or deformation. This is due to the difference in strength between the materials that are in contact with each other.

[0008] Filed on August 3, 1978, No. 2432
The French patent published as No. 280 discloses a closure device which also has a U-shaped lever arm, but which is pivoted at the end at a suitable support rigidly connected to a flap plate. having wings, with a pivot interposed between said wings, adapted to interact with a suitable rack formed in and projecting from the other plate to be joined; .

This solution has drawbacks, since the engagement between the lever arm and the rack is not always reliable, and the reason is that this rack must be made of the same plastic material as the shoe rest. There is a strong need to do so, and this type of material cannot withstand the high stresses exerted during skiing.

Among the various embodiments described, the same applicant as the French patent actually provides the use of a single lever arm, which single lever arm has a gearing area. , this area interacts with a suitable pivot that connects transversely with the wing of a U-shaped rod, which U-shaped rod is pivoted in a cantilever manner to the other straddle plate to which it is connected. Ru.

[0011] Therefore, even this solution has the drawbacks mentioned above; in addition, there is a difficult closing movement for the skier, who actually has to rotate the lever arm by 180°.

[0012] As a partial solution to this drawback, Italian patent application no. 22716 B/1, filed by the same applicant and dated September 8, 1980, relates to a closure device, in particular a closure device for ski boots. No. 80, the lever arm disclosed therein is pivotally connected at one end at one of the fixed base plates; one end of the traction element part is articulated to the central portion of said lever element part; said traction element part is pivotally connected at its opposite end with a hook-like element part, said hook-like element part being engaged into a mating seat formed at the other fixed base plate; The traction element part comprises means for adjusting its effective length and at least one substantially flexible portion.

However, even this solution structurally
It has a large number of components and projections on the outside of the shoe's profile; it also extends considerably in the longitudinal direction and occupies a very large area of the shoe.

[0014]

[Problem to be solved by the present invention] The aim of the present invention is to
The aim is to eliminate the above-mentioned disadvantages of the known types by providing a lever device which does not simultaneously project outside the lateral rim of the shoe, but is capable of moving the two flaps that join together. Achieve optimal fixation.

An important object within the scope of the abovementioned aims is to provide a structurally simple device that can be manufactured with a small number of component parts.

Another important objective is to provide a lever device that is related to the previous properties allowing the use of less expensive materials without affecting the overall aesthetic appearance of the shoe. It is.

Another object is to provide a compact lever device that occupies less space on the shoe.

An important objective is to provide a lever device that is reliable and safe in use.

[0019]

[Means for Solving the Problems] This aim, these objects, and matters that should become clear from the following description are directed to a lever device for fixing the two braces of sports footwear, particularly ski boots. This lever device is achieved by a lever arm provided in at least one suitable seat provided on one of the said base plates and connected to another one of the said base plates. and at least one gripping element part for the engagement means provided on the lever arm. Further characteristics and advantages of the invention will emerge from the detailed description of some specific, but not exclusive, embodiments, which is illustrated by way of non-limiting example only with the aid of the accompanying drawings. Become.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the figures, reference numeral 1 designates a first base plate 2 on a second base plate 3 of a sports footwear, in particular a ski boot 4.
shows a lever device that can be used to secure the

The lever device consists of at least one lever arm 5 which, in the particular embodiment shown in FIG. 2, has a substantially U-shape and whose configuration is as follows:
It has a base plate 6 that connects a pair of wings 7a, 7b, and interlocking means constituted by a pivot 8 is interposed in the transverse direction between the free ends of these wings.

[0022] Said at least one lever arm 5 is arranged at a suitable seat 9 formed on the first rest plate 2 of the shoe.
Connected or temporarily connectable to the shoe.

[0023] Said first base plate 2 is conveniently constituted by a tablature, which is rigidly connected to said first base plate and/or projects from said first base plate.

[0024] The first and second hanging plates can thus be constituted by, for example, a single tab, which protrudes from the waist skin or from the outer skin, and at the other end extends from the waist skin and/or the outside skin. or connected to the outer skin.

In a particular embodiment, the lever arm 5 is partially inserted into the seat 9; the base plate 6 is hidden in said seat 9, and the pair of wings 7a and 7b are also inserted into the seat. , whereas the end of the wing including the pivot 8 projects from the seat at the inner side 10 of the first flap 2 facing the second flap 3 .

A longitudinal opening 12 is further formed at the seat 9 on the surface 11 of the first backing plate 2 opposite the surface 10 .

From the point of view of the material of the component parts, the first base plate 2 and, optionally, the tabs constituting this base plate 2 can be composed of a soft material, and thus the second element part 3, suitable for engaging the pivot 8 in a suitable gripping means connected to the thumbwheel 3, thereby imparting flexibility to said thumbscrew. Said gripping means can conveniently be constituted by a rack 13 which is rigidly connected to the second base plate 3 by suitable first rivets 14a and 14b.

[0028] Said material from which the first flap or flap is made may thus advantageously be, for example, leather,
or alternatively soft plastics such as soft synthetic materials or natural materials.

The seat 9 is further advantageously obtained by interconnecting two material parts, for example by gluing, stitching or welding, or directly as a single part.

Alternatively, the seat 9 can be manufactured by folding the edges of a single piece onto itself and forming it by stitching, gluing or welding.

A pair of wings 7a and 7b, and the first lean plate 2
The connection between the second rivets 15a and 15b is suitable.
It is increased using

FIG. 5 illustrates the use of the lever device 1, which consists of two interlocking means, designated 8a and 8b, which are separated by the intersecting pieces 16 from each other. The substrates 6a and 6b are part of a single unit consisting of two lever arms 5a and 5b which are interconnected.

Two racks, indicated by numerals 13a and 13b, are advantageously mounted on the second backing plate 3.

[0034] The invention achieves the intended aims and objects, and the provided lever device is completely integrated into the shoe, in which the lever arm is connected to one of the footplates, ie It has been observed that it presents a fairly good aesthetic appearance as it is wholly or partially concealed within the seat formed on the band.

This fact also applies to the lever arm.
This would allow the use of materials such as blank metal sheets or steel rods that have good strength but poor visual appearance.

[0036] The lever device thus obtained further has the following features:
The number of components is reduced, since boards, brackets and traction parts are practically eliminated, reducing dimensions and weight on the one hand, and manufacturing costs on the other hand.

The lever device according to the invention is susceptible to many modifications and changes, all of which fall within the scope of the same concept of the invention.

Thus, for example, FIGS. 6 and 7 illustrate a second embodiment of a lever device 101, which lever device has at least one lever arm 105, which lever arm is arcuate. A pair of parallel and separated wings 10 are formed from this end.
7a, 107b extend; interlocking means assembled by a pivot 108 are provided transversely at the free end of said wing.

The lever arm 105 thus has a T-shape, and the end of the first flap or knob 102 is connected to the base plate 106.

The tabs act on and cover the portions of the wings 107a and 107b proximate to the connection of the wings to the substrate 106, and as a result, the pair of wings 107a
An opening 102 is formed in the first lean plate or knob 102 in the space between and 107b.

[0041] The lever arm 105 has 117a and 117
It is connected to the first flap or tablature 102 using a suitable pivot, indicated at b.

The lever arm 105 is thus pivoted at the first flap or knob 102.

[0043] This solution is suitable if the material constituting the first flap or knob is of a semi-rigid type and thus the use of a pivot 108 with a gripping element part constituted by a rack 113. This is a useful solution if it does not allow for flexible operation.

In the lever device 101 shown in FIG. 7, a pair of interlocking means 108a and 108b are used; said means are integrally constructed in a single body, which is designated by the numerals 105a and 105b, and a base plate 106a. It consists of two independent lever arms connected by a cross plate 116 at and 106b.

In this case, the lever arms 105a, 105
The interconnection between b and the first flap or knob 102 is made by means of pivots 117a, 117b and 117c, said pivot 117c connecting the oppositely facing wings of the two lever arms.

In this case, the pivot 10
A pair of racks 113 interacting with 8a and 108b
a and 113b are provided at the second leaning plate 103.

The materials constituting the individual components of this lever device are of course the most suitable materials according to the specified requirements.

[Brief explanation of the drawing]

1 is a side view of a ski boot with a lever device according to the invention, FIG.

FIG. 2 is a partially sectional perspective view of the lever device in the open state;

FIG. 3 is a top view of the lever device in a closed state.

4 is a view taken along section III-III of FIG. 3, with the lever arm in the open position for clarity; FIG.

FIG. 5 shows the use of a lever arm consisting of two interlocking element parts integrated into a single lever arm.

6 is a view similar to that of FIG. 2 for a second embodiment; FIG.

7 shows the use of two interlocking element parts integrated into a single lever arm in conjunction with the solution shown in FIG. 6; FIG.

[Explanation of symbols]

1,101 Lever device 2 Leaning plate 3,103 Leaning plate 4 Ski boots 5, 5a, 5b, 105, 105a, 105b Lever arm 6, 6a, 6b, 106, 106a, 106b Board 7a, 7b, 107a, 107b Wing 8 ,108,1
17a, 117b, 117c Pivot 9 Seat 10 Inner surface 11 Surface 12 Vertical opening 13, 13a, 13b, 113a, 113b Rack 14a, 14b, 15a, 15b Rivet 16
Cross piece 102 Thumb leather 108a, 108b Engaging means

Claims (12)

[Claims] Claim 1: Sports footwear, especially ski boots (4)
a lever device for fixing two lean plates (2, 3, 103), the lever being provided on at least one suitable seat (9) provided on one of said lean plates; arm(
5, 105a, 105b) and at least one gripping element for the engagement means (13, 14a, 14b, 113a, 113b) provided on said lever arm connected to another one of said lean plates. A lever device for sports footwear, in particular ski boots, characterized in that it consists of parts. 2. Device according to claim 1, characterized in that said at least one seat (9) is formed in a thumb strap (3) connected to one of said base plates. 3. The lever arm is substantially U-shaped and has a base plate connecting a pair of wings (7a, 7b), with a mating member pivotably assembled between the free ends of the base plate. 3. Device according to claim 2, characterized in that the means are transversely interposed. 4. The lever arm is connected to at least one suitable seat (9) on one of the base plates (3) connected to one of the base plates, or temporarily connected to one of the base plates (3). 4. The device according to claim 3, characterized in that the device is configured such that it can be connected to other devices. 5. The lever arm is insertable into the at least one seat, the base plate and partially the pair of wings are concealed within the seat, and the wing has an end; 5. Device according to claim 4, characterized in that the pivot, including the pivot, protrudes from the seat on one inner surface (10) of the base plate (2). 6. Device according to claim 5, characterized in that a longitudinal opening (12) is formed in the at least one seat (9). 7. Device according to claim 6, characterized in that said at least one gripping element part connected to one of said base plates is constituted by a rack (13). 8. The apparatus according to claim 7, wherein the material constituting the base plate is a soft material. 9. Device according to claim 8, characterized in that the at least one seat is obtained by folding a single piece onto itself. 10. Two lever arms (
105a, 105b) integrated into a single body consisting of
Device according to claim 1, characterized in that it consists of two interlocking means (108a, 108b). 11. The lever arm has a pair of wings (1
07a, 107b) has one base plate (106) with a curved end extending out, said wings being arranged parallel to each other and separated, the interlocking means transversely extending at the free ends of said wings. , the engagement means comprises one pivot (108), the at least one lever arm has a T-shape, and one end of the leaning plate is connected to the base plate. The device according to claim 1, characterized in that it comprises: 12. Device according to claim 11, characterized in that said lever arm is connected to one of said base plates by means of a suitable pivot (117a, 117b).