EP0233328B1 - Sportschuh, insbesondere Skischuh, aus Kunststoff - Google Patents

Sportschuh, insbesondere Skischuh, aus Kunststoff Download PDF

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Publication number
EP0233328B1
EP0233328B1 EP86115545A EP86115545A EP0233328B1 EP 0233328 B1 EP0233328 B1 EP 0233328B1 EP 86115545 A EP86115545 A EP 86115545A EP 86115545 A EP86115545 A EP 86115545A EP 0233328 B1 EP0233328 B1 EP 0233328B1
Authority
EP
European Patent Office
Prior art keywords
wall
area
wall section
sports shoe
shoe according
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
EP86115545A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0233328A1 (de
Inventor
Klaus Walkhoff
Erik O. Giese
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 AT86115545T priority Critical patent/ATE52170T1/de
Publication of EP0233328A1 publication Critical patent/EP0233328A1/de
Application granted granted Critical
Publication of EP0233328B1 publication Critical patent/EP0233328B1/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 sports shoe and, in particular, to a plastic ski boot according to the preamble of claim 1.
  • Ski boots made of plastic have a relatively stiff upper, which makes walking with such ski boots and bending the lower leg forwards and backwards very difficult.
  • Various proposals have therefore been made to remedy these disadvantages.
  • ski boots are known which are wave-shaped in the shin instinct area (see, for example, US Pat. No. 3,988,842 and the published international patent application WO 8 100 507).
  • Such a measure makes it easier to bend the lower leg forward, but not to the desired extent, and it should also be noted that the bending elasticity of the undulating region of the upper of the shoe also decreases at lower temperatures.
  • ski boots have also been proposed in which inserts made of a material with rubber-elastic properties are inserted into slots in the shin instinct area of the upper of the shoe (EP-A 0 053 340).
  • inserts made of a material with rubber-elastic properties are inserted into slots in the shin instinct area of the upper of the shoe (EP-A 0 053 340).
  • each shoe part consists of thin-walled shell parts which are reinforced by means of ribs which are arranged in areas of high mechanical stress.
  • the wall area of one shoe part surrounding the heel area of the wearer is designed like a bellows, as a result of which the shoe is given a certain elasticity in its longitudinal direction.
  • This bellows-like wall area has a lower bending stiffness than the immediate area of this shoe part and is made of the same material as the other areas of this shoe part.
  • the present invention is based on the object of creating a sports shoe of the type mentioned at the outset with improved bending behavior compared to the prior art and which can be selected within further limits, without the need for a significant additional manufacturing effort.
  • the ski boot 1 shown in Fig. 1 is formed by a shoe upper made of plastic and a sole 3, which is also made of plastic.
  • the shoe upper 2 has a relatively rigid shell part 4 encompassing the foot and a tongue part 5 which overlaps it and which extends into the instep area 6 and the shin area 7.
  • the tongue part 5 is connected on both sides of the shell part 4 to this shell part 4 at connection points designated by 8.
  • the upper 2 also has a rear shaft part 10 (spoiler) arranged in the calf region 9, which is pivotally connected to the shell part 4 by means of joints 11 arranged on both sides of the shell part 4.
  • the rear shaft part 10 is detachably connected to the tongue part 5 by means of a locking device 12 of a known type.
  • a soft, cushioned inner shoe 13 is arranged in the interior of the shoe upper 2 in a manner known per se.
  • a foot restraint plate Arranged between the inner shoe 13 and the shoe upper 2 is a foot restraint plate, not shown in FIG. 1, which can be applied to the foot by means of a tensioning lever arranged on the rear shaft part 10 and not visible in FIG. 1, as in EP-OS 0 157 240 is explained in more detail.
  • the tongue part 5 is provided with a corrugated wall section 15 (see also FIG. 2).
  • This wall section 15 has elevations 16 and depressions 17 lying between them.
  • This wall section 15 now consists of a different type of material than the rest of the tongue part 5 and also as the shell part 4 and the rear shaft part 10, so that this wall section 15 has a lower bending stiffness, ie de Accordingly, it has a greater bending elasticity than the rest of the tongue part 5, the shell part 4 and the rear shaft part 10.
  • the tongue part 5, the shell part 4 and the rear shaft part 10 consist of the same polyamide
  • the wall section 15 consists of a different polyamide.
  • Tongue part 5, shell part 4, rear shaft part 10 and wall section 15 thus consist of plastics of the same schematic category but with different properties. "Grilamid" has proven to be a suitable material for all of these parts.
  • the wall thickness b of the wall section 15, at least in its edge area 15a, is approximately the same as the wall thickness a of the wall area 18 of the tongue part 5 surrounding this edge area 15a of the wall section 15.
  • All parts 4, 5, 10 of shoe upper 2 are expediently produced by injection molding. It has proven to be expedient to produce the wall section 15 in a separate operation and then to insert the finished wall section 15 into the injection mold for the tongue part 5. When the material for the tongue part 5 is subsequently introduced, the inserted wall section 15 softens at least in its edge region 15a and the edge regions 15a of the wall section 15 merge with the surrounding wall region 18 of the tongue part 5 in a manner indicated by dashed lines in FIG. 2 Connection zone 19. In this way, the wall section 15 is firmly and permanently connected to the adjacent area 18 of the tongue part 5 to form a quasi-one-piece structure.
  • FIG. 3 shows the deflection a of plastic parts as a function of the applied bending force P.
  • the deflection is greater at a certain force than for a component made of a more rigid plastic, as used for the rest of the tongue part 5 (curve 11).
  • the ski boots shown in FIGS. 4-6 largely correspond to the ski boot according to FIG. 1, differ from it as well as from one another by a different arrangement or configuration of the more flexible wall areas.
  • FIGS. 4 and 5 differ from the ski boot according to FIG. 1 in that the entire corrugated wall section 15 does not consist of a more flexible material, but rather only the elevations 16 (FIG. 4) or only the depressions 17 ( Fig. 5).
  • the corrugated wall section 15 does not consist of a more flexible material, but the uppermost wall section 20 of the tongue part 5 arranged in the shin region 7.
  • FIGS. 7 to 11 show ski boots which are similar to one another and differ from one another only by the different arrangement or design of the more flexible wall regions.
  • I, 4 - 6 differ from the ski boot according to FIGS. 7, 11 in that there is no tongue part 5 separate from the shell part 4, but rather that the shell part 4 extends over the instep area 6 into the shin area 7 extends.
  • 7-11 therefore consists of only two parts, namely the one-piece shell part 4 provided with the sole 3 and the rear shaft part 10.
  • the previously mentioned tensioning lever 21 is for Tensioning and loosening the foot restraint plate shown.
  • the shell part 4 has a corrugated area 22.
  • the upper wall section 23 lying in the sliding area 7 is made of a different type of material than the rest of the shell part 4 and is more flexible than this.
  • the wall section of the shell part 4, designated 24, is less rigid than the rest of the shell part 4. This more flexible wall section 24 is located in the area of the transition 14 from the instep area 6 to the shin area 7.
  • the shell part 4 in the instep area 6 and in the shin area 7 or in the transition area 14 between these areas 6, 7 is provided with two wall sections 25 and 26 of greater bending elasticity.
  • the area lying between these two wall sections 25 and 26 can either consist of the same material and have the same bending stiffness as the rest of the shell part 4 (FIG. 9) or it can be designed such that its bending elasticity differs from both the wall sections 25 and 26 as well as from the rest of the shell part 4, as shown in FIG. 10.
  • the wall section designated by 27 consists of a plastic which differs in its properties both from the plastic used for the wall sections 25 and 26 and from the plastic from which the rest of the shell part 4 is made. In this way, two regions 25, 26 and 27 of lower flexural rigidity are obtained, which also differ in their flexurally elastic properties.
  • the shell part 4 is provided with a wall section 28 with greater bending elasticity, which extends over the instep area 6 into the transition area 14 to the shin area 7.
  • the rear shaft part 10 also has a wall section 29 which is made of a different type of plastic than the rest of the rear shaft part 10 and which has a lower bending stiffness than the rest of the rear shaft part 10. As shown in FIG. 11 goes ahead, this more flexible wall region 29 extends upwards on both sides of the rear shaft part 10 and runs around the shoe above the closing device 12.
  • the parts of the shell part 4 and the rear shaft part 10 which consist of a more rigid plastic than the wall sections 28 and 29, form a type of frame which gives the ski boot the desired rigidity in the lateral direction, but a bending in the longitudinal direction of the shoe.
  • a front shaft part 30 is articulated on the joints 11, which spans the shin area 7. 12
  • the shell part 4 is provided in the instep area 6 and in the transition area 14 with a wall section 31 which is more flexible than the rest of the shell part 4.
  • the rear shaft part 10 is provided with a corrugated or ribbed wall section 32 which has a lower bending stiffness than the rest of the rear shaft part 10.
  • the ski boot 1 shown in FIG. 14 is provided in the region of its toe 33 with a corrugated wall section 34 which extends in the toe region over the upper 2 of the shoe.
  • This more flexible wall part 34 makes walking easier, as indicated by the dash 33 shown in dashed lines.
  • the ski boots shown in FIGS. 4-14 are basically produced in the manner explained in connection with the ski boot shown in FIG. 1 using the injection molding process.
  • other types of manufacture are of course also possible.
  • the more flexible wall sections 15-17, 20, 23-29, 31, 32, 34 can be produced in the same injection mold as the rest of the shoe upper and approximately simultaneously with this, by then introducing the different materials into the same injection mold.
  • the material to be used for the more flexible wall regions 15, 20, 23-29, 31, 32, 34 preferably has a different bending elasticity or a different density than the material used for the rest of the shoe upper 2.
  • plastics of the same chemical category but with different properties or different plastics can be used.
  • synthetic rubber can also be used for the more flexible wall parts.
  • the sole 3 can be made of a different material than the shell part 4 in order to give this sole 3 the desired properties (low wear, good adhesion and the like).

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP86115545A 1985-12-23 1986-11-10 Sportschuh, insbesondere Skischuh, aus Kunststoff Expired - Lifetime EP0233328B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86115545T ATE52170T1 (de) 1985-12-23 1986-11-10 Sportschuh, insbesondere skischuh, aus kunststoff.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5512/85A CH669498A5 (ja) 1985-12-23 1985-12-23
CH5512/85 1985-12-23

Publications (2)

Publication Number Publication Date
EP0233328A1 EP0233328A1 (de) 1987-08-26
EP0233328B1 true EP0233328B1 (de) 1990-04-25

Family

ID=4294867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115545A Expired - Lifetime EP0233328B1 (de) 1985-12-23 1986-11-10 Sportschuh, insbesondere Skischuh, aus Kunststoff

Country Status (7)

Country Link
US (1) US4793077A (ja)
EP (1) EP0233328B1 (ja)
JP (1) JPS62159603A (ja)
AT (1) ATE52170T1 (ja)
CA (1) CA1260702A (ja)
CH (1) CH669498A5 (ja)
DE (1) DE3670563D1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390171B (de) * 1986-07-24 1990-03-26 Dynafit Gmbh Skischuh und verfahren zur herstellung desselben
CH680699A5 (ja) * 1987-04-22 1992-10-30 Raichle Sportschuh Ag
IT213808Z2 (it) * 1988-06-22 1990-03-01 Olivieri Icaro & C Allacciatura per scarponi da sci in particolare per scarponi del tipo cosidetto a calzata posteriore.
US5181332A (en) * 1990-03-26 1993-01-26 Uren Dean P Water ski boot and binding
IT229245Y1 (it) * 1992-06-02 1998-07-02 Nordica Spa Struttura di lembo, particolarmente per il gambale e/o lo scafo di uno scarpone da sci
US6109643A (en) * 1995-03-02 2000-08-29 Airwalk International Llc Snowboard binding assembly
US5957479A (en) * 1995-03-02 1999-09-28 Items International, Inc. Snowboard binding assembly
US5832635A (en) * 1997-01-17 1998-11-10 Items International, Inc. Apparatus for adjusting the forward lean and flexibility of footwear
EP2465373A4 (en) * 2009-08-11 2015-12-30 Sang-Ok Shim PARKING SUPPORT FOR A SHOE
DE102011011024A1 (de) * 2011-02-11 2012-08-16 Cathérine Sitzmann Die Mobilität erleichternder Sportschuh

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH481592A (de) * 1968-03-26 1969-11-30 Rieker & Co Skistiefel
AT319810B (de) * 1971-03-25 1975-01-10 Marker Hannes Stabilisator für Skilanglaufschuhe
DE7314869U (de) * 1973-02-20 1973-07-19 Kastinger & Co Kg Skistiefel
CA999738A (en) * 1973-03-05 1976-11-16 Karhu-Sport Ab Athletic boot
CH587620A5 (ja) * 1974-11-28 1977-05-13 Salomon & Fils F
US3988842A (en) * 1975-06-19 1976-11-02 Rathmell Richard K Molded hinged and corrugated ski boot
DE2925554A1 (de) * 1979-06-25 1981-01-22 Hannes Marker Skischuh
US4281468A (en) * 1979-08-16 1981-08-04 Comfort Products, Inc. Ski boot having a corrugated front portion
AT374094B (de) * 1981-02-05 1984-03-12 Dynafit Gmbh Mehrteiliger schalenskischuh mit einer durch einen deckel verschliessbaren einstiegsoeffnung
AT379731B (de) * 1982-10-08 1986-02-25 Amf Sport Freizeitgeraete Skischuh
IT8223309V0 (it) * 1982-10-27 1982-10-27 Nordica Spa Struttura di scarpetta interna per scarponi da sci.
AT376555B (de) * 1982-11-12 1984-12-10 Koeflach Sportgeraete Gmbh Schuh oder stiefel
JPS6031522Y2 (ja) * 1982-12-29 1985-09-20 奈良スポ−ツ株式会社 スキ−靴
CH679108A5 (en) * 1984-07-09 1991-12-31 Bernhard Georg Prof Dr M Weber Ski boot adaptable for down-hill or cross-country skiing
US4658517A (en) * 1986-01-22 1987-04-21 Daiwa Seiko Inc. Ski boot
US4677769A (en) * 1986-02-28 1987-07-07 Eddress Ahmad Footwear with pivotal toe

Also Published As

Publication number Publication date
JPS62159603A (ja) 1987-07-15
CH669498A5 (ja) 1989-03-31
US4793077A (en) 1988-12-27
DE3670563D1 (de) 1990-05-31
CA1260702A (en) 1989-09-26
EP0233328A1 (de) 1987-08-26
JPH042041B2 (ja) 1992-01-16
ATE52170T1 (de) 1990-05-15

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