EP0287816B1 - Skischuh - Google Patents

Skischuh Download PDF

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Publication number
EP0287816B1
EP0287816B1 EP88104438A EP88104438A EP0287816B1 EP 0287816 B1 EP0287816 B1 EP 0287816B1 EP 88104438 A EP88104438 A EP 88104438A EP 88104438 A EP88104438 A EP 88104438A EP 0287816 B1 EP0287816 B1 EP 0287816B1
Authority
EP
European Patent Office
Prior art keywords
boot
stiffening elements
stiffening
ski boot
cavities
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
Application number
EP88104438A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0287816A1 (de
Inventor
Klaus Walkhoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raichle Sportschuh AG
Original Assignee
Raichle Sportschuh AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Raichle Sportschuh AG filed Critical Raichle Sportschuh AG
Priority to AT88104438T priority Critical patent/ATE56593T1/de
Publication of EP0287816A1 publication Critical patent/EP0287816A1/de
Application granted granted Critical
Publication of EP0287816B1 publication Critical patent/EP0287816B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A43B5/0458—Adjustment of the forward inclination of the boot leg including flex control; Dampening means with the actuator being disposed at the front side of the boot

Definitions

  • the present invention relates to a ski boot according to the preamble of patent claims 1 and 8, respectively.
  • Such a ski boot is known from US Pat. No. 3,738,025.
  • In the instep and shin area undulating elevations and depressions are provided on the shell of the front shaft part.
  • Each protrusion protruding against the outside of the shoe has an approximately cylindrical cavity which runs transversely to the longitudinal direction of the shoe and which is closed on the one side in the axial direction and in the axial direction.
  • a rotatable stiffening body is provided in each cavity and has a stiffening web which is approximately rectangular in cross section.
  • On the side of the cavity in question which is open in the axial direction, a cylindrical end wall of the stiffening web projects laterally beyond the elevation.
  • a slot is made in the end wall, by means of which the rotational position of the stiffening body can be adjusted with the aid of a coin or a screwdriver.
  • a similar ski boot is also known from US Pat. No. 3,807,060.
  • the upper of this ski boot consists of a shell on which a significantly protruding, narrow stiffening rib is formed, which extends from the toe to the area of the upper end of the upper on the upper side of the boot.
  • a plurality of spaced-apart transverse ribs are formed on this stiffening rib, which partially encompass the shell and, as the distance from the stiffening rib increases, decrease in height above the shell.
  • the stiffening rib is slotted up to the shell, which locally reduces the bending stiffness of the stiffening rib and enables the ski boot to give way under the pressure of the shinbone.
  • Stiffening bodies are rotatably mounted in the slots and have a cuboid-shaped web. If the web is aligned so that the large areas of the cuboid are parallel to the direction of the slot, the shaft can yield forward until the segments of the stiffening rib separated by the respective slot abut each other. If the stiffening bodies are rotated by 90 ° in relation to the position described above, they prevent the reinforcing rib segments from moving towards one another.
  • a corresponding arrangement is provided on the rear part of the shoe for adjusting the bending stiffness in the event of a bending load to the rear.
  • Such a shoe with a longitudinal stiffening rib and transverse ribs arranged transversely to it is complicated to manufacture. There is also a risk of icing, especially in wet snow, because the slits are open and significantly exposed to the outside, especially to the front of the shoe, so that snow and ice can penetrate the slits. Due to the constant changes in load during the journey, the snow is compressed, which means that the desired flexibility decreases over time.
  • the object of the present invention is to provide a generic ski boot whose flexibility in the longitudinal direction of the shoe is simple, reliable and user-friendly.
  • the shaft can be produced very easily. If the protrusions protruding toward the outside of the shoe form at least closed cavities against the front of the shoe, in which the stiffening bodies are accommodated, it is difficult for snow to enter these cavities from the outside.
  • a user-friendly, infinitely variable adjustment of the flexibility is now achieved in that all stiffening bodies can be adjusted together by a drive arrangement arranged inside the shoe. The stiffening bodies are either twisted together or moved.
  • the stiffening bodies are advantageously mounted rotatably about an axis of the cylindrical cavities, and they have different compression behavior transversely to their axis of rotation. This enables the flexibility of the front shaft part to be increased or decreased by simply rotating the stiffening body.
  • stiffening bodies consist of a stiffening web with a rectangular cross-section, made of a material of low elasticity, which can be swiveled around the axis of rotation and if end walls are formed on this web, then the cavities are also closed laterally against the outside of the shoe, which allows the flexibility set to be kept particularly constant.
  • the front part of the shaft is equipped with a tongue which covers the shell in the instep and shin region and is fastened thereon.
  • the weakened zones are formed in the tongue, which allows a very simple manufacture of the front shaft part and a separate manufacture of the tongue.
  • stiffening bodies are slidably seated on a threaded spindle which is rotatably mounted on an abutment and can be rotated by means of a rotary handle.
  • a stepless adjustment of the flexibility can also be achieved with this embodiment.
  • the ski boot 10 shown in FIG. 1, formed from a plastic material, consists of a sole 12 and a shaft 14.
  • the front shaft part 16 is formed from a shell 18 and a tongue 20 covering it in the instep and shin region.
  • the tongue 20 is connected to the shell 18 at connection points 22 located opposite one another with respect to the longitudinal center plane of the shoe.
  • the shaft 14 also includes a rear shaft part 24 (spoiler) which is pivotally attached to the shell 18 in the heel region 26 by means of two opposing joints 28.
  • This rear shaft part 24 can be connected to the tongue 20 in a known manner by means of a locking device 30.
  • the shaft 14 encloses a padded inner shoe 32 in a likewise known manner.
  • the tongue 20 is provided in the region of the transition from the shin area 34 to the instep area 36 with weakening zones 38, which are formed by undulating elevations 40 and adjoining depressions 42 (see also FIGS. 2 to 4). These weakened zones 38 give the tongue 20 and thus the front shaft part 16 increased flexibility when the tongue 20 is stressed forward in the direction towards the tip of the shoe.
  • the projections 40 projecting towards the outside of the shoe define cavities 44 (FIGS. 2 to 4) which are closed towards the front of the shoe.
  • the cavities 44 extend in a direction transverse to the longitudinal center plane of the shoe.
  • stiffening bodies 46 which are rotatably mounted about the longitudinal axis of the cavities 44 (Fig. 2 to 4). These stiffening bodies 46, which are designed in the manner of webs, consist of a material of comparatively less compressibility, preferably of a suitable plastic.
  • the areas of the cavities 44 between the stiffening webs 46 and the inner wall of the cavities 44 are filled with a material 48 which is more compressible than the material of the stiffening webs 46.
  • a foam material for example, is suitable as the filling material 48.
  • end walls 50 (FIG. 1) are formed, which close the cavities 44 laterally against the outside of the shoe.
  • stiffening webs 46 are rotated into the position shown in FIG. 4, in which all the stiffening webs 46 extend with their broad side 46 ′ transversely to an imaginary connecting line 54 between the shin region 34 and the instep region 36 of the tongue 20, the stiffening effect of the stiffening webs 46 is not or only to an insignificant extent. This means that when the tongue 20 is subjected to bending stress in the forward direction, the weakened zones 38 can develop their full effect and give the tongue 20 a relatively high degree of flexibility.
  • stiffening webs 46 are rotated by 90 ° from the position described above, so that the stiffening webs 46 extend in the direction of the imaginary connecting line 54 mentioned (FIG. 4), the stiffening effect of the stiffening webs 46 comes into its own.
  • the weakened zones 38 and thus the tongue part 20 are stiffened, so that the latter can be bent out less easily in the event of a bending stress against the tip of the shoe.
  • An adjustment mechanism 56 is provided in the interior of the shoe for the common adjustment of all stiffening webs 46.
  • a lever arm 58 projects from each stiffening web 46.
  • the lever arms 58 are connected to one another by means of two tabs 60 which are articulated to the lever arms 58.
  • a threaded pin 62 which engages in a threaded sleeve 64, is connected to the uppermost lever arm 58.
  • the latter is mounted in a holder 66 fastened to the tongue 20.
  • the threaded sleeve 64 is provided with a gear 68.
  • a rotary knob 70 is arranged on the outside of the tongue 20 and is rotatably mounted in the holder 66.
  • the rotary knob 70 has a ring gear 72 which is in engagement with the gear 68.
  • the threaded sleeve 64 is rotated, which results in the lifting and lowering of the threaded pin 62.
  • This causes the stiffening webs 46 to be rotated together in the interior of the cavities 44.
  • the position of the stiffening webs 46 can be steplessly adjusted. If they assume the position shown in FIG. 2, the greatest possible stiffening effect is achieved. 3 and 4, the other extreme position is shown. In this position, the stiffening bodies 46 have no or only a very slight stiffening effect.
  • the cavities 44 are open towards the inside of the shoe in the region of the lever arms 58 '(FIGS. 2 and 3).
  • stiffening bodies denoted by 86 have a cross-section in the form of a segment of a circle, the width B (FIG. 5) of the base area 88 of these stiffening bodies 86 being smaller than the diameter of the cavities 44, in which these stiffening bodies 86 are accommodated.
  • the part of a cylindrical surface forming the outer surface 90 (FIG. 6) of this stiffening body 86 has essentially the same curvature as the inner wall of the cavities 40.
  • the stiffening bodies 86 sit on a flexible threaded rod 92 which is rotatably supported at its lower end in an abutment 94 which is attached to the inside of the tongue 20. At the other end, the threaded rod 92 is provided with a turning handle 96.
  • the stiffening bodies 86 move in the direction of arrow A along the threaded rod 92. If the stiffening bodies 86 are brought into their upper end position shown in FIG. 5, they develop their greatest possible stiffening effect, which means that the tongue 20 has less flexibility. If, on the other hand, the stiffening bodies 86 are moved downward so that they stand out from the inner wall of the intermediate spaces 44 (FIG. 6), the flexibility of the tongue 20 is increased, since the stiffening bodies 86 can no longer exert any or very little stiffening effect .
  • the area with the weakening zones 38 can be made of a material whose bending stiffness is lower than that of the material of the surrounding wall sections, as is the case in the unpublished Swiss patent application No. 5512/85 and corresponding EP-A 0 233 328 is described.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP88104438A 1987-04-22 1988-03-19 Skischuh Expired - Lifetime EP0287816B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88104438T ATE56593T1 (de) 1987-04-22 1988-03-19 Skischuh.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1545/87A CH680699A5 (enrdf_load_stackoverflow) 1987-04-22 1987-04-22
CH1545/87 1987-04-22

Publications (2)

Publication Number Publication Date
EP0287816A1 EP0287816A1 (de) 1988-10-26
EP0287816B1 true EP0287816B1 (de) 1990-09-19

Family

ID=4212922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104438A Expired - Lifetime EP0287816B1 (de) 1987-04-22 1988-03-19 Skischuh

Country Status (5)

Country Link
US (2) US4843740A (enrdf_load_stackoverflow)
EP (1) EP0287816B1 (enrdf_load_stackoverflow)
AT (1) ATE56593T1 (enrdf_load_stackoverflow)
CH (1) CH680699A5 (enrdf_load_stackoverflow)
DE (1) DE3860631D1 (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679440A5 (enrdf_load_stackoverflow) * 1988-11-21 1992-02-28 Raichle Sportschuh Ag
FR2722066B1 (fr) * 1994-07-07 1996-08-30 Salomon Sa Reglage de flexibilite de chaussure de ski
US5904359A (en) 1995-05-26 1999-05-18 Nordica S.P.A. Skate with in-line wheels
US5957470A (en) * 1996-03-07 1999-09-28 Powell; David A. Flexible skate
US6351754B1 (en) 1998-06-23 2002-02-26 Oracle Corporation Method and system for controlling recovery downtime
FR2816174B1 (fr) * 2000-11-09 2003-09-05 Salomon Sa Protection d'une articulation
US6446362B1 (en) 2001-01-18 2002-09-10 K-2 Corporation Multiposition boot strap mount
US6807753B2 (en) * 2002-05-13 2004-10-26 Adidas International B.V. Shoe with tunable cushioning system
US6983553B2 (en) * 2002-05-13 2006-01-10 Adidas International Marketing B.V. Shoe with tunable cushioning system
GB0317679D0 (en) * 2003-07-29 2003-09-03 Amersham Biosciences Uk Ltd Analysing biological entities
ITTO20030753A1 (it) * 2003-09-26 2005-03-27 Marco Rigat Scarpone da telemark polifunzionale
IT1393458B1 (it) * 2009-03-20 2012-04-20 Scarpa Calzaturificio Spa Scarpone da sci
US9468261B2 (en) * 2012-12-07 2016-10-18 Nike, Inc. Article with adjustable stiffness tongue
US9474324B2 (en) 2012-12-07 2016-10-25 Nike, Inc. Article of footwear with adjustable stiffness
US9380834B2 (en) 2014-04-22 2016-07-05 Nike, Inc. Article of footwear with dynamic support
IT202000026269A1 (it) * 2020-11-04 2022-05-04 Dalbello S R L A Socio Unico Calzatura sportiva dotata di una lingua selettivamente snodabile

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738025A (en) * 1972-07-31 1973-06-12 Hanson Ind Inc Ski boot having variable stiffness
DE7314869U (de) * 1973-02-20 1973-07-19 Kastinger & Co Kg Skistiefel
US3807060A (en) * 1973-03-05 1974-04-30 Hanson Ind Inc Ski boot having multi-directional flexure means and canting means
US3988842A (en) * 1975-06-19 1976-11-02 Rathmell Richard K Molded hinged and corrugated ski boot
US4043059A (en) * 1976-05-03 1977-08-23 Richard Kenneth Rathmell Ski boot-improved means to change flexibility
US4235026A (en) * 1978-09-13 1980-11-25 Motion Analysis, Inc. Elastomeric shoesole
US4430810A (en) * 1979-02-07 1984-02-14 Adidas Sportschuhfabriken Adi Dassler Kg Sole for sports shoes, particularly for shoes used for long-distance running on hard tracks
AR228821A1 (es) * 1982-02-22 1983-04-15 Dassler Puma Sportschuh Calzado deportivo
AT379731B (de) * 1982-10-08 1986-02-25 Amf Sport Freizeitgeraete Skischuh
IT1173396B (it) * 1984-02-28 1987-06-24 Nordica Spa Scarpone da sci con dispositivo per la regolazione della flessibilita'
CH669498A5 (enrdf_load_stackoverflow) * 1985-12-23 1989-03-31 Raichle Sportschuh Ag

Also Published As

Publication number Publication date
ATE56593T1 (de) 1990-10-15
US4864744A (en) 1989-09-12
CH680699A5 (enrdf_load_stackoverflow) 1992-10-30
US4843740A (en) 1989-07-04
EP0287816A1 (de) 1988-10-26
DE3860631D1 (de) 1990-10-25

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