EP0738479B1 - Chaussure avec contrÔle de flexion de la tige - Google Patents
Chaussure avec contrÔle de flexion de la tige Download PDFInfo
- Publication number
- EP0738479B1 EP0738479B1 EP96100143A EP96100143A EP0738479B1 EP 0738479 B1 EP0738479 B1 EP 0738479B1 EP 96100143 A EP96100143 A EP 96100143A EP 96100143 A EP96100143 A EP 96100143A EP 0738479 B1 EP0738479 B1 EP 0738479B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell base
- transmission arm
- rod
- shock absorbing
- absorbing element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 7
- 230000035939 shock Effects 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 description 36
- 238000005452 bending Methods 0.000 description 20
- 238000010276 construction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000750 progressive effect Effects 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0427—Ski or like boots characterised by type or construction details
- A43B5/0452—Adjustment of the forward inclination of the boot leg
- A43B5/0454—Adjustment of the forward inclination of the boot leg including flex control; Dampening means
- A43B5/0456—Adjustment of the forward inclination of the boot leg including flex control; Dampening means with the actuator being disposed at the rear side of the boot
Definitions
- the present invention relates to rigid shell ski boots comprising a shell base surmounted by an at least partially pivoting rod and relates to a device for controlling the flexion intended to cushion elastically the supports of the lower leg of the skier which are applied on the rod and which force it to pivot relative to the shell base, and to ensure its elastic return in position initial as soon as said supports cease.
- Known ski boots of this type are generally provided with bending control devices capable of absorbing, over a certain amplitude of the rod's pivoting movement, the skier's lower leg supports on this last.
- These bending control devices usually employ means deformable elastics working in compression and / or bending, and which, when released, restore enough energy to return the upper of the shoe to its initial position.
- the means the most commonly used elastics are metal springs such as steel. Indeed, these can bear major deformations and return fairly faithfully to their original shape that they were bent, stretched, compressed or twisted many times.
- elastic means obtained from elastically compressible materials of the elastomer type are also used to act as springs.
- these elements elastic ensure, when compressed to block, the retention of the upper of the shoe pivoting forward. In doing so, they completely fill the space where they are trapped and tend thus deforming the walls of the rod and of the shell base which are contiguous to them. If otherwise water and / or snow infiltrates their housing, the possible pivoting of the rod is disturbed because the elastic elements can no longer be compressed completely since part of the space they have is occupied by it.
- ski boots having elastic shock absorbing elements of rubbery appearance and thin which are sandwiched between the walls of the rod and of the shell base to absorb vibrations, shocks, etc ..., i.e. all trips from very low amplitude.
- damping elements significantly reduce the short forces but do not do not allow, in particular, a gradual pivoting of amplitude at least sufficient to allow a flexion perceptible by the skier. In fact, such elements do not control the flexibility of the rod.
- ski boots have elements which have a certain viscosity, and which are interposed between the rod and the shell base to absorb shock and vibration.
- elastic shock absorbing elements these viscous elements which also absorb shock and vibrations of low amplitude, allow the pivoting of the rod by constituting what is called a viscous friction.
- they are unable to bring the upper of the shoe back into position. initial as soon as the efforts and / or solicitations cease. In fact, these devices only manage one sliding friction from one surface to another.
- the present invention proposes to remedy the drawbacks of the devices for controlling the bending above in a simple and effective way guaranteeing at the same time a low damping amplitude for short shocks and vibrations, and progressive and large amplitude damping for the stresses and efforts maintained with return to the initial position as soon as these cease.
- the invention also proposes a very perceptible device capable of immediately transmitting and directly the stresses applied on the upper part of the rod to the damping element.
- the object of the invention is achieved by providing a damping element of viscoelastic material very thick which is interposed between the rod and the shell base, and which is made to work shear rather than compression, using a transmission arm which intervenes directly between the top of the shoe upper and the shell base via the element depreciation, the periphery of the latter being provided completely clear to allow its transverse deformation.
- the ski boot has a first shell element or base surmounted by a second element or rod provided with a bending control device intended to dampen the supports of the bottom of leg of the skier over a certain amplitude in pivoting of said rod relative to the hull base.
- the flexure control device has an elastically deformable viscoelastic damping means which intervenes between the rod and the shell base.
- the shoe is characterized by the fact that the device bending control consists of a transmission arm and the damping element obtained in viscoelastic material in the form of a very thick block with two faces approximately parallel, the transmission arm extending from the top of the rod to the base of shell which it connects to each other by means of the damping element sandwiched by its faces between at least one of its ends and the component of the shoe located opposite.
- the upper of the shoe is thus suspended elastically around its pivot axis on the hull base flexed forwards and backwards, its range of travel being essentially a function of the elastic shear capacity of the element damper.
- the damping element is located in the lower part of the rod in the area of the heel and the transmission arm, of elongated shape, extends substantially parallel to the wall of the shell base, one of its ends being rigidly fixed to the upper part of the rod while the other end, free and spaced from the wall of the shell base, is connected to the latter by through the viscoelastic damping element.
- the transmission arm has the general shape of a "T" whose upper end, formed by the horizontal bar, is fixed on either side of the area dorsal of the stem and at its center, while the lower end, ending the vertical bar, is connected to the damping element.
- a refinement of this method of construction consists in providing on the lower part of the rod in the heel area where the lower end of the traction arm extends, a wrapping rim intended to mask the damping element and under which slides, through an opening, said end of the traction arm.
- the bending control device has its range of travel limited in the direction of pivoting backwards from an angular position determined at by means of a stop interacting between the rod and the shell base.
- the bending control device has its amplitude of travel limited by pivoting backwards and forwards by means of at least one stop interacting between the rod and the shell base.
- FIG. 1 and 2 illustrate a ski boot whose upper is provided with the device for controlling the bending of which the viscoelastic damping element works in shear
- FIG. 1 representing, schematically, the shoe seen in longitudinal section
- Figure 2 the shoe seen from behind.
- FIGS. 3, 4, 5 and 6 show another ski boot with a device for controlling the bending of the type of that of the shoe of FIGS. 1 and 2, cooperating with at least one stop of limitation of the amplitude of movement of the rod, and provided with an element wrap rim shock absorber, FIGS. 3 and 4 being views in longitudinal section of the shoe, and FIGS. 5 and 6 exterior views, respectively in elevation and from behind.
- the ski boot comprising a first element such as a shell base 1 provided with a sole 31 is surmounted by a second element such as a rod 2 mounted at least partially pivoting on axes 3, and has, in the dorsal zone 4 of the rod 2, a device for controlling the flexion 5.
- This device 5 consists of a transmission arm 6 secured to the top 8 of the rod 2, and of an element shock absorber 7 of viscoelastic material interacting between the rod 2 and the shell base 1 by the transmission arm 6 interposed.
- the latter of elongated shape, for example comparable to a "T" as visible in Figure 2, is fixed by its upper end 11 on either side of the area dorsal 4 of the rod 2, at 9, and at its center 10. It extends substantially parallel to the wall 1 'of the shell base 1, and its other end 12, free and spaced from the wall 1 ', is connected to the latter through the damping element 7.
- the damping element 7 has the shape of a very thick block which is fixed by two faces opposite 17 preferably substantially parallel on corresponding fixing zones 17 ′, located one on the end 12 of the transmission arm 6, and the other on the wall 1 'of the shell base 1.
- the rod 2 is advantageously provided with a transverse rim 13 in its lower rear part 14. This rim 13 is intended to sealing between the wall of the rod 2 and the wall 1 'of the shell base 1 which is covered in the corresponding area.
- the clearance made on its periphery 15 avoids imprisoning and / or forcing said element 7 against one of the walls of the rod 2 and / or of the shell base 1 or between stops, and thus does not no need to provide reinforcements.
- the rod 2 is suspended elastically around its axes 3 pivot, any movement forward and / or rear simultaneously causing and directly the elastic deformation of the damping element 7.
- the arm being fixed at the top of the rod 2, any stress applied to it is transmitted instantly and practically without loss of the damping element 7, which considerably reduces the response time.
- the skier thus benefits from a flexion control device 5 which is progressive and damping over a large amplitude, insensitive to water, snow, etc. infiltration, capable of recalling rod 2 in initial position as soon as the stresses stop, and very noticeable by the skier.
- the shoe includes a device bending control 5 which is associated with a rod 22 limited in travel in the direction of a pivoting backwards from a determined angular position by means of a stop 26-27.
- This stop consists of a flange 26 produced on the wall of the shell base 1, above of the fixing zone of the damping element 7, and of a complementary flange 27 produced on the wall of the rod 2.
- This stop 26-27 blocks the rod 22 in pivoting backwards in an angular position determined, at angle ⁇ , relative to the plane of the sole 31 of the shell base 1.
- the rod 22 is provided with a wrapping rim 23 in its lower part. posterior 14.
- This rim 23 advantageously covers the entire damping element 7, leaving free its periphery 15 and is provided with an opening 24 through which the free end 12 of the transmission arm 6.
- the rod 22 thus produced has a relatively continuous outer surface in which the flexure control device 5 is perfectly integrated.
- a transverse projection 25 with a progressive profile is obtained on the shell 1 base facing screw of the rim 23 and at a distance therefrom to allow the possible evacuation of water and / or snow which would have infiltrated between the rod 22 and the shell base 1.
- a stop limits the amplitude of its pivoting 28 towards the front in addition to the stop 26-27 which acts by pivoting towards the rear.
- it is the stops which determine the maximum amplitude of the possible pivoting of the rod 22. It goes without saying that this amplitude of pivoting is advantageously limited to that of the elastic deformation acceptable by the damping element 7.
- FIGS. 1 to 6 shows the implementation of a bending control device 5 whose viscoelastic damping element 7 is fixed on the base of shell 1 in the heel area, and the transmission arm 6 of which is secured to the top 8 of the upper 2, 22. It is understood that this bending control device 5 can also be mounted at the reverse, that is to say by fixing the damping element 7 on the top 8 of the rod 2, 22, and the arm of transmission 6 on the hull base 1 in the heel area.
- the bending control device 5 always transmits the stresses applied to the top 8 of the rod 2, 22, directly to the damping element 7 which remains forced to work on the shearing of the made of its attachment to the free end of the transmission arm 6 which is then secured to the base of shell 1.
- Another example of possible implementation of the device for controlling the bending 5 of the rod 2, 22, relative to the shell base 1 consists in connecting each of the ends 11 and 12 of the arm of transmission 6 to a viscoelastic damping element 7 fixed one on the rod 2, 22, the other on the base shell 1.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Sealing Devices (AREA)
- Resistance Heating (AREA)
Description
Claims (8)
- Chaussure de ski comportant un premier élément tel qu'une base de coque (1) surmontée d'un deuxième élément tel qu'une tige (2, 22) pourvue d'un dispositif de contrôle de la flexion (5) destiné à amortir les appuis du bas de jambe du skieur sur une certaine amplitude en pivotement de ladite tige (2, 22) par rapport à la base de coque (1), le dispositif de contrôle de la flexion (5) présentant un élément d'amortissement élastique (7) obtenu en un matériau viscoélastique déformable élastiquement qui intervient entre la tige (2, 22) et la base de coque (1), caractérisée par le fait que le dispositif de contrôle de la flexion (5) est constitué d'un bras de transmission (6) et de l'élément amortisseur (7) obtenu en matériau viscoélastique se présentant sous la forme d'un bloc de forte épaisseur avec deux faces (17) approximativement parallèles, le bras de transmission (6) s'étendant du haut (8) de la tige (2, 22) jusqu'à la base de coque (1) qu'il relie entre elles par l'intermédiaire de l'élément amortisseur (7) placé en sandwich par ses faces (17) entre l'une (12) au moins de ses extrémités (11, 12) et la paroi de l'élément (1, 2, 22) constitutif de la chaussure situé en vis à vis.
- Chaussure de ski selon la revendication 1, caractérisée par le fait que le bras de transmission (6) est solidaire de la tige (2, 22), l'élément amortisseur (7) viscoélastique étant fixé, par une face (17) sur une zone de fixation (17') située sur une extrémité (12), libre, du bras de transmission (6), et par la face opposée (17) sur une zone de fixation (17') située sur la paroi (1') de la base de coque (1), le bras de transmission étant solidarisé (9, 10) du haut (8) de la tige (2, 22) par son autre extrémité (11).
- Chaussure de ski selon les revendications 1 ou 2, caractérisée en ce que le pourtour (15) de l'élément amortisseur (7) est totalement dégagé pour permettre la déformation dudit élément transversalement à ses zones de fixation (17').
- Chaussure de ski selon la revendication 2, caractérisée en ce que l'élément amortisseur (7) est situé dans la partie basse postérieure (14) de la tige (2, 22) dans la zone du talon et le bras de transmission (6), de forme allongée, s'étend sensiblement parallèlement à la paroi (1') de la base de coque (1) sur la zone dorsale de la tige (2, 22), une (11) de ses extrémités étant fixée rigidement à la partie haute (8) de la tige (2, 22) tandis que l'autre extrémité (12), libre est espacée de ladite paroi (1') de la base de coque (1), et reliée à cette dernière par l'intermédiaire de l'élément amortisseur (7).
- Chaussure de ski selon les revendications 1 ou 2, caractérisée en ce que le dispositif de contrôle de la flexion (5) a son amplitude de débattement limitée dans le sens du pivotement vers l'arrière à partir d'une position angulaire déterminée au moyen d'une butée (26, 27) interagissant entre la tige (2, 22) et la base de coque (1).
- Chaussure de ski selon les revendications 1 ou 2, caractérisée en ce que le dispositif de contrôle de la flexion (5) a son amplitude de débattement limitée en pivotement vers l'arrière et vers l'avant au moyen d'au moins une butée interagissant entre la tige (2, 22) et la base de coque (1).
- Chaussure de ski selon l'un quelconque des revendications 2 à 4, caractérisée en ce que le bras de transmission (6) a la forme générale d'un "T" dont l'extrémité supérieure (11), constituée par la barre horizontale, se fixe (9, 10) de part et d'autre de la zone dorsale de la tige (2, 22) et en son centre, tandis que l'extrémité inférieure (12), terminant la barre verticale, est reliée à l'élément amortisseur (7).
- Chaussure de ski selon l'un quelconque des revendications 2 à 6, caractérisée en ce qu'un rebord (23) d'enveloppement est prévu sur la tige (2, 22) dans sa partie basse (14), et masque l'élément amortisseur (7) ainsi que l'extrémité inférieure (12) du bras de transmission (6) qui passe au travers d'une ouverture (24).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9504859A FR2733125B1 (fr) | 1995-04-19 | 1995-04-19 | Chaussure avec controle de flexion de la tige |
FR9504859 | 1995-04-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0738479A1 EP0738479A1 (fr) | 1996-10-23 |
EP0738479B1 true EP0738479B1 (fr) | 1999-09-22 |
Family
ID=9478377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96100143A Expired - Lifetime EP0738479B1 (fr) | 1995-04-19 | 1996-01-08 | Chaussure avec contrÔle de flexion de la tige |
Country Status (6)
Country | Link |
---|---|
US (1) | US5819441A (fr) |
EP (1) | EP0738479B1 (fr) |
JP (1) | JPH08289801A (fr) |
AT (1) | ATE184756T1 (fr) |
DE (1) | DE69604323T2 (fr) |
FR (1) | FR2733125B1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6231066B1 (en) | 1999-03-03 | 2001-05-15 | Shimano Inc. | Active highback system for a snowboard boot |
FR2793391B1 (fr) * | 1999-05-12 | 2001-06-08 | Salomon Sa | Chaussure de ski de fond |
EP1212124B1 (fr) * | 2000-01-06 | 2003-08-27 | The Burton Corporation | Tige arriere constituee de plusieurs materiaux |
ITTV20010051A1 (it) | 2001-04-23 | 2002-10-23 | Tecnica Spa | Calzatura sportiva con flessibilita' migliorata |
US7686321B2 (en) * | 2006-12-01 | 2010-03-30 | The Burton Corporation | Highback with textile-like material for support |
EP2572599B1 (fr) * | 2011-09-26 | 2015-04-22 | Rossignol Lange S.R.L. | Coque de chaussure de ski avec spoiler |
ES2906567T3 (es) * | 2015-05-06 | 2022-04-19 | Ober Alp Spa | Bota de esquí provista de un mecanismo de selección de esquí-marcha mejorado |
US12108839B2 (en) * | 2021-07-21 | 2024-10-08 | Rossignol Lange S.R.L. | Lower shell for a gliding boot |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4078322A (en) * | 1976-08-04 | 1978-03-14 | Engineered Sports Products, Inc. | Ski boot |
DE8020898U1 (de) * | 1980-08-04 | 1980-11-06 | Kastinger, Hermann, Seewalchen (Oesterreich) | Skischuh |
FR2498061B1 (fr) * | 1981-01-20 | 1985-05-31 | Articles Sport Cie Fse | Chaussure de ski |
FR2498431A1 (fr) * | 1981-01-23 | 1982-07-30 | Articles Sport Cie Fse | Chaussure de ski |
EP0206394B1 (fr) * | 1985-06-24 | 1989-04-26 | Lange International S.A. | Chaussure de ski |
EP0241840A3 (fr) * | 1986-04-11 | 1989-11-29 | NORDICA S.p.A | Chaussure de ski avec dispositif pour varier la flexibilité |
FR2617381B1 (fr) * | 1987-07-03 | 1990-01-05 | Salomon Sa | Chaussure, notamment de ski alpin a tige articulee |
CH677174A5 (fr) * | 1988-10-10 | 1991-04-30 | Lange Int Sa | |
CH679440A5 (fr) * | 1988-11-21 | 1992-02-28 | Raichle Sportschuh Ag | |
CH678258A5 (fr) * | 1989-01-18 | 1991-08-30 | Lange Int Sa | |
FR2672189B1 (fr) * | 1991-02-01 | 1993-06-11 | Salomon Sa | Chaussure de ski a capot arriere articule sur le bras de coque. |
FR2674106A1 (fr) * | 1991-03-21 | 1992-09-25 | Salomon Sa | Chaussure de ski alpin a etrier d'energie articule sur le capot arriere. |
DE69503713T2 (de) * | 1994-07-01 | 1999-02-18 | Lange International S.A., Fribourg | Schischuh |
-
1995
- 1995-04-19 FR FR9504859A patent/FR2733125B1/fr not_active Expired - Fee Related
-
1996
- 1996-01-08 AT AT96100143T patent/ATE184756T1/de not_active IP Right Cessation
- 1996-01-08 DE DE69604323T patent/DE69604323T2/de not_active Expired - Fee Related
- 1996-01-08 EP EP96100143A patent/EP0738479B1/fr not_active Expired - Lifetime
- 1996-04-01 US US08/625,863 patent/US5819441A/en not_active Expired - Fee Related
- 1996-04-16 JP JP8094089A patent/JPH08289801A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US5819441A (en) | 1998-10-13 |
EP0738479A1 (fr) | 1996-10-23 |
FR2733125B1 (fr) | 1997-07-04 |
ATE184756T1 (de) | 1999-10-15 |
JPH08289801A (ja) | 1996-11-05 |
DE69604323T2 (de) | 2000-02-10 |
DE69604323D1 (de) | 1999-10-28 |
FR2733125A1 (fr) | 1996-10-25 |
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