EP0410136A2 - Chaussure de ski - Google Patents

Chaussure de ski Download PDF

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Publication number
EP0410136A2
EP0410136A2 EP90111699A EP90111699A EP0410136A2 EP 0410136 A2 EP0410136 A2 EP 0410136A2 EP 90111699 A EP90111699 A EP 90111699A EP 90111699 A EP90111699 A EP 90111699A EP 0410136 A2 EP0410136 A2 EP 0410136A2
Authority
EP
European Patent Office
Prior art keywords
ski boot
boot according
spring
shaft
pivot bearing
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.)
Granted
Application number
EP90111699A
Other languages
German (de)
English (en)
Other versions
EP0410136A3 (en
EP0410136B1 (fr
Inventor
Peter Dr. Schaff
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.)
TUEV PRODUCT SERVICE GmbH
Original Assignee
Tuev Product Service GmbH
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 Tuev Product Service GmbH filed Critical Tuev Product Service GmbH
Publication of EP0410136A2 publication Critical patent/EP0410136A2/fr
Publication of EP0410136A3 publication Critical patent/EP0410136A3/de
Application granted granted Critical
Publication of EP0410136B1 publication Critical patent/EP0410136B1/fr
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
    • A43B5/0456—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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes

Definitions

  • the invention relates to a ski boot according to the preamble of protection claim 1.
  • ski boot Such a ski boot is known from practice.
  • This ski boot referred to as the so-called rear entry, is relatively stiff with a slightly flexible shaft as soon as the ski boot is closed with a closure in the region of the shaft end.
  • the rear cuff which is correspondingly high and stiff, forms the support for the lower leg.
  • the knee joint is slightly bent or almost straight when the patient is lying on the back.
  • the rigid rear cuff transmits forces to the lower leg that counteract a backward deflection of the leg.
  • the load on the lower leg depends on the duration and the level of the force caused by the fall or jump.
  • the disadvantage here is that high forces act on the knee joint, particularly at peak loads, which must be absorbed mainly by the ligaments surrounding the knee joint. A relatively significant increase in the past few years This results in knee ligament injuries, especially cruciate ligament injuries.
  • the invention has for its object to design a ski boot of the type mentioned in such a way that the risk of injury when backed up is reduced by the relatively stiff shaft.
  • the limit force release device With the help of the limit force release device containing the closure, it is ensured that the shaft and thus the rear cuff are securely closed below a limit force when forces occur and the lower leg is thereby firmly supported. Only when the tripping limit force is reached, e.g. in the event of a backward fall or a jump with a landing on the ski ends, the limit force release device releases or gives in to the closure, so that the rear cuff can pivot backwards about its pivot bearing due to the high force. This pivoting movement enables a rearward movement of the lower leg, so that the shear forces acting on the knee joint are reduced. This can prevent tearing at the knee ligaments or tearing of the ligament. The loads are distributed more evenly over the body of the skier, in particular on his lower leg, when the lock is released.
  • limit force release device In addition to the limit force release device, it is also favorable to provide a limit force closing device on the closure, in order not only to give the rear cuff to the rear, but also to ensure a pivoting of the rear boot from the release position folded back to the normal closed position.
  • the rear sleeve is returned when the closing force falls below a certain limit, which can be the same as the aforementioned triggering force.
  • the limit force release and closing device is also advantageous to design the limit force release and closing device as a prestressed spring element in the sense of a double function.
  • the preload corresponds to at least the tripping limit force. If the tripping limit force is exceeded, the spring element is tensioned further. If the closing limit force is undershot, it returns to the starting position.
  • spring elements are simple and reliable and can also be used at low temperatures and unfavorable weather conditions, e.g. Snow, mud or ice, releasable. They are also relatively low-maintenance and easy to replace.
  • the prestressing of the spring element can be adjusted with the aid of a prestressing device.
  • the limit forces can also be set in a simple manner.
  • the pretensioning device By means of the pretensioning device, the pretension can be varied within wide limits and can be individually adapted to the wishes of the skier. In this way, one and the same spring element can be used in a large number of ski boots, regardless of whether it is a ski boot for inexperienced or experienced skiers.
  • the spring element is also expedient to design the spring element as a helical or leaf or plate or tosion spring, since such springs are used in a variety of ways in practice and are therefore easy to obtain.
  • Is expedient to arrange the leaf spring in the rear part of the rear boot since the spring is particularly protected at this point and is therefore kept free from unfavorable weather conditions. Such an arrangement therefore also supports the operational safety of the ski boot. It is also possible to store the lower part of the leaf spring in the base shell section adjoining the lower part of the rear sleeve and to arrange the upper part of the leaf spring in the upward-pointing part of the rear sleeve.
  • the torsion spring is expediently arranged in the region of the swivel bearing of the rear boot, since, depending on its function, it can easily hold the rear boot in the closed position at this point.
  • the previously described arrangement of the leaf spring in the rear part of the rear boot and the arrangement of the torsion spring in the area of the pivot bearing also offer the advantage of an aesthetically very attractive ski boot, since additional elements attached to the outside of the ski boot can be omitted in these embodiments.
  • the spring element is also advantageous to design the spring element as an elastic band, since such an element can be produced very inexpensively and can be attached to the ski boot without serious changes.
  • the limit force release and closing device has a sensor and an actuator, which e.g. can be driven by a battery built into the ski boot.
  • the force-dependent triggering time of such a sensor can be set relatively easily using an adjusting screw.
  • a longitudinal section through a ski boot 1 is shown, which is designed as a so-called rear entry.
  • the ski boot 1 has a base shell 3 which receives the foot 2 and is firmly connected to a shoe sole 5 in the area of the foot sole 4.
  • the base shell 3 has an upper shell section 7 and a lower shell section 8 in the region of its front side 6, the upper shell section 7 comprising a shaft 12 which supports the lower leg 11 and is supplemented in the rear region by a rear sleeve 14 which can be pivoted by a pivot bearing 13.
  • the upper, front region 15 of the shaft 12 is of relatively rigid design and merges into an approximately horizontal rear region 17 according to that in a curved line 16 over an almost vertical front section.
  • the rear sleeve 14 is arranged above the rear end of the base shell 3 and at least partially covers the shaft 12. This applies in particular to the area of the pivot bearing 13. On the entire inner surface of the base shell 3 or the rear sleeve 14, an inner shell 22 projects beyond the shaft 12 intended. This is used primarily for padding the foot 2 in the ski boot 1 and for thermal insulation.
  • Fig. 1 further illustrates that the pivot bearing 13 of the rear cuff 14 is arranged approximately below the ankle 23 of the foot 2 and shifted forward.
  • the pivot bearing 13 can lie on a circular arc, the center of which is the rear lower heel end 24 and the radius R through the ankle 23. However, it is also possible to arrange the pivot bearing 13 coaxially with the ankle 23 (not shown).
  • Each ski boot of the design variants described below is constructed in principle in accordance with the ski boot according to FIG. 1, unless stated otherwise.
  • the same reference numerals relate to the same elements.
  • the ski boot 1 is provided with a closure 28 which has a limit force release device 25 and a limit force closing device 26. Both are together as a prestressed spring element 27 and according to FIG. formed as an elastic band 31 surrounding the shaft 12 circumferentially.
  • the base shell 3 has a rearward projection 32 on which a receptacle 33 is provided.
  • the helical compression spring 30 is completely surrounded on the circumference by a spring sleeve 34, the lower end of which is supported in the receptacle 33.
  • the upper end of the helical compression spring 30 is acted upon by a cover element 35, with the aid of which the helical compression spring is compressed in the position shown in FIG. 2 such that the cover element 35 engages at the upper end of the spring sleeve 34.
  • the cover element 35 is secured with a buckle 36 on the rear collar 14 and can be moved downward on the spring sleeve 34 against the force of the helical compression spring 30.
  • the elastic band 31 of the second exemplary embodiment shown in FIG. 3 is secured on the rear boot 14 by two projections 37, 38 against slipping up or down.
  • the pretensioning of the band 31 can be adjusted within wide limits with the aid of a pretensioning device 43 consisting of three notches 40 and a counter detent 42 connected with a buckle 41.
  • the spring element 27 can also be designed as a leaf or plate or torsion spring, the leaf spring advantageously being mounted in the rear part of the rear boot 14 and the base shell 3, the torsion spring advantageously in the region of the pivot bearing 13.
  • the individual spring elements can have a different spring characteristic, for example a progressive spring characteristic when using a leaf spring.
  • limit force release and closing device 25, 26 it is also possible to design the limit force release and closing device 25, 26 as a sensor with an actuator.
  • a shock absorber (not shown) can also be provided on the ski boot, with the aid of which the rear cuff can be controllably transferred from the release position into the closed position.
  • the buckle 41 is first released and the counter-catch 42 is lifted off the catch 40 (see FIG. 3).
  • the buckle 36 is released from the rear collar 14 and the cover element 35 is pulled off upwards.
  • inwardly directed grippers are arranged on the upper side of the spring sleeve, which hold the helical compression spring 30 in the spring sleeve 34.
  • the inner shell 22 can be widened to the rear and the rear cuff 14 can be pivoted about its pivot bearing 13, so that the foot 2 can slide into the ski boot from the rear (see FIG. 1).
  • the ski boot is then closed by means of the closure 28 in that the counter-catch 42 engages behind one of the catches 40 and is pulled firmly around the shaft 12 with the aid of the buckle 41.
  • the cover element 35 is moved downward on the spring sleeve 34 against the force of the helical compression spring 30 until these parts snap into one another and / or the buckle 36 is fastened on the rear collar 14.
  • the pre-tensioning of the helical compression spring 30 can be done, for example, by turning the receptacle 33 upward or set below.
  • the ski boot When the buckle 36 or 41 is closed, the ski boot is in its operating position. If a limit force is exceeded, e.g. as a result of a backward fall or a jump with a landing on the ski ends, a high limit load occurs which pushes the lower leg backwards, i.e. in the direction of the rear boot 14. If this peak load exceeds the triggering limit force of the limit force release device 25, the helical compression spring 30 or the elastic band 31 is thereby compressed or stretched, resulting in an elastic pivoting movement of the rear sleeve 14 around the pivot bearing 13. The load peak thus causes the rear boot 14 to open rearward. A part of the load energy is thereby absorbed in the respective spring element 27.
  • Tripping and closing limit forces can assume identical or different values, the tripping limit force generally being greater than the closing limit force. In this way, the forces on the knee and lower leg are reduced so that the risk of injury is reduced.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP90111699A 1989-06-23 1990-06-20 Chaussure de ski Expired - Lifetime EP0410136B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8907696U DE8907696U1 (de) 1989-06-23 1989-06-23 Skischuh
DE8907696U 1989-06-23

Publications (3)

Publication Number Publication Date
EP0410136A2 true EP0410136A2 (fr) 1991-01-30
EP0410136A3 EP0410136A3 (en) 1992-02-05
EP0410136B1 EP0410136B1 (fr) 1995-05-10

Family

ID=6840421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111699A Expired - Lifetime EP0410136B1 (fr) 1989-06-23 1990-06-20 Chaussure de ski

Country Status (3)

Country Link
EP (1) EP0410136B1 (fr)
AT (1) ATE122215T1 (fr)
DE (2) DE8907696U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0968664A1 (fr) * 1998-07-03 2000-01-05 Lange International S.A. Chaussure de ski

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514762A3 (en) * 1991-05-23 1993-09-29 Raichle Sportschuh Ag Skiboot

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963342A1 (de) * 1969-12-17 1971-06-24 Voelkl Ohg Franz Skischuh
DE2057094C3 (de) * 1970-11-20 1973-11-22 Altenburger Kg, 7893 Jestetten Vorrichtung fur Skistiefel zur Begrenzung des Schwenkbereiches eines gegenüber einem Schaftunterteil ver schwenkbaren Schaftoberteils
FR2345960A1 (fr) * 1976-04-01 1977-10-28 Salomon & Fils F Perfectionnements apportes aux chaussures de ski
FR2417953A1 (fr) * 1978-02-22 1979-09-21 Salomon & Fils F Perfectionnements apportes aux chaussures de sport et plus particulierement aux chaussures de ski
AT374667B (de) * 1981-01-26 1984-05-25 Dynafit Gmbh Schischuh
CH667190A5 (de) * 1985-08-26 1988-09-30 Gudo Ag Skischuh.
CH669312A5 (fr) * 1986-02-03 1989-03-15 Fire Generation Ets
IT1190085B (it) * 1986-04-09 1988-02-10 Nordica Spa Scarpone da sci ad entrata posteriore con dispositivo di chiusura e regolazione della flessibilita'

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0968664A1 (fr) * 1998-07-03 2000-01-05 Lange International S.A. Chaussure de ski
CH692232A5 (fr) * 1998-07-03 2002-04-15 Lange Int Sa Chaussure de ski.

Also Published As

Publication number Publication date
ATE122215T1 (de) 1995-05-15
EP0410136A3 (en) 1992-02-05
DE8907696U1 (de) 1989-11-09
DE59009049D1 (de) 1995-06-14
EP0410136B1 (fr) 1995-05-10

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