Classifications

• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B5/00—Footwear for sporting purposes
  • A43B5/06—Running shoes; Track shoes
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
  • A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
  • A43B13/18—Resilient soles
  • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
  • A43B13/188—Differential cushioning regions
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
  • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
  • A43B13/24—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
  • A43B13/26—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions projecting beyond the sole surface
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B5/00—Footwear for sporting purposes
  • A43B5/005—Footwear for sporting purposes for grinding, i.e. sliding on the sole or a part thereof
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B7/00—Footwear with health or hygienic arrangements
  • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
  • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
  • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
  • A43B7/1435—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the joint between the fifth phalange and the fifth metatarsal bone

Definitions

• the invention concerns a shoe with a damping device for use on a hard ground surface such as asphalt. More specifically the invention concerns a running shoe with an outer sole designed to provide good damping also for the front part of the foot.
• damping can be provided by flexible layers of material, preferably in combination with trapped pockets of air or gas as well as damping gel materials.
• damping gel materials There are also so-called full-damped shoes with a corresponding, but somewhat less damping under the front part of the foot than under the back part. This type of damping is effective with respect to damping of movements in vertical direction.
• the present invention is a.
• hard ground surfaces refers to ground surfaces like asphalt, concrete and other compact ground surfaces.
• the invention will also function, but to a somewhat smaller extent, on softer ground surfaces like different types of synthetic ground surfaces.
• the present invention does not, however, depend on a scientific understanding of the complete movement pattern for each step. It is on the other hand important that the particular sole element which has a limited friction against the surface, is arranged mainly lateral and therefore obtains contact with the ground surface as early as possible in the landing phase and it is furthermore significant that the medial side of the sole does not have a significant area of such a sole element since this would lead to a poorer grip for kick-off.
• the sole element according to the present invention has the form of at least one plate which is adapted to the outer shoe sole.
• the outer sole will typically comprise at least one recess with mainly the same shape as the plate or plates in question, said plate(s) being permanently or releasably/ replaceably attached to the sole.
• Damping, compressible materials of conventional type, which are mainly suitable for damping of vertical retardation, can be arranged under the outer shoe sole and/ pr between said plate and the outer shoe sole.
• a sole element made as an integral part of the outer shoe sole. This prevents any risk of losing a sole element during use. In addition this allows a gradual change from a certain hardness with corresponding friction coefficient to another hardness with another friction coefficient. On the other hand this type of sole element can not be replaced when worn.
• the sole element according to the present invention is made in a synthetic material and it does not matter what kind of synthetic material is used as long as a desirable low friction is obtained. From practical and economical reasons a material with a significant wear resistance should be used in order not to wear out the sole element much earlier than the rest of the shoe. In some embodiments it is preferred that the sole element according to the present invention is made in another material than the other parts of the shoe outer sole.
• Fig. 1 is a top view of a shoe sole of a running shoe according to the present invention
• Fig. 2 shows principally the same as Fig. 1 bur with a slightly different localization of the sole element according to the invention
• Fig. 3 shows an embodiment of the present invention having two separate sole elements
• Fig. 4 shows a variant of the version shown in Fig. 3 in which the two sole elements partly overlap one another
• Fig. 5a and 5b show a side sectional view of the shoe sole shown in Fig. 1 along the line V-V and an enlarged detail from Fig. 5a respectively.
• Figure 1 shows a shoe sole of a running shoe according to the present invention from below.
• the sole has a toe portion 2, a heel portion 3, a lateral side 4 and a medial side 5.
• the characterizing part of the shoe sole is a particular sole element 6 that provides reduced friction, arranged substantially lateral under the front part of the foot.
• a stapled line across the sole's longitudinal extension indicates where the user's transverse foot arch is highest.
• the front part of the foot should be interpreted as the part of the foot in front said stapled line.
• Fig. 2 another variant of the shoe sole according to the present invention is illustrated.
• the particular sole element 6' extends from lateral side and somewhat over to the medial side of the foot, but has its main area at the lateral side.
• FIG. 3 yet a variant of the shoe sole according to the present invention is shown.
• the elements are separate but in close proximity with one another.
• Fig. 4 shows a variant of a shoe sole shown in Fig. 3, in which the two sole elements 6a' and 6b' appear to partly overlap one another. It might be a cut out in the sole element 6a' that corresponds to the part of sole element 6b' "overlapping sole element” 6a'. It might also be more than two sole elements (not shown) according to the present invention, hereunder at least one sole element with reduced friction localized at the medial side of the front foot as long as the size of such element is not predominant.
• the sole element 6a and 6b in Fig. 3 can have mutually different properties. The can for example have different hardness and provide different friction against e.g. asphalt, e.g.
• sole element 6a which will normally hit the ground surface first, can have a friction against asphalt which is lower than that of sole element 6b, which has a higher friction than sole element 6a but a lower friction than the other part of the shoe sole.
• sole elements 6a' and 6b' in Figure 4 The same is to be said about sole elements 6a' and 6b' in Figure 4.
• Fig. 5a a side sectional view of the shoe sole of Fig. 1 is shown, the section being put along the line V-V in Fig. 1.
• the sole thickness of the drawing is exaggerated in proportion to the other dimensions of the sole.
• Fig. 5b an enlarged section (encircled) from Fig. 5a is shown.
• the sole element 6 protrudes from the sole as such as illustrated by the ⁇ (delta).
• ⁇ delta
• Figures 5a and 5b provide an illustration of a sole element having a longitudinal flange along a part of or its entire circumference in order to support or hold the sole element fixed to the sole 1.
• This is not a mandatory feature of the invention and will normally not constitute a sufficient method of attachment for the sole element 6 which preferably will be attached to the sole 1 over the entire or a substantial area in which the sole elements are in contact with the sole 1.
• Suitable attachment mechanisms comprise gluing and vulcanization.
• a particular damping element or damping material for the sole element 6 can be arranged in addition to the damping element or elements which will normally be located above the sole 1 , covering part of or all of the area of the sole.
• the damping material 8 will be resilient and its thickness can in some embodiments be at least the magnitude of the protrusion " ⁇ " or the height difference between the sole element and the other part of the sole 1 , so that the sole element for each step is compressed to about the level of the other parts of the sole.
• the damping material 8 will, if present, contribute to damping both in vertical and horizontal direction.
• the sole element is typically made in a synthetic material which is highly wear resistant and which have a hardness or particularly a surface hardness that provides a friction against a ground surface like asphalt, concrete, paving stones and the like which is lower than the friction the sole 1 has against such surfaces.
• the sole element can also be provided with fibres or particles to further accommodate its properties with respect to strength and friction coefficient.
• the sole element provides a friction coefficient against (dry) asphalt and (dry) concrete which is lower than 0.8, more preferred a friction coefficient in the range from 0.1 to 0.6 and even more preferred in the range 0.2 to 0.4.
• the sole element 6 has an area that constitute at least 15 % of the area of the part of the shoe sole situated under the front part of the foot , i.e. which is in front of the traverse stapled line in the figures 1-4. If there are more than one sole element as shown in Figure 3, it is the sum of the areas of said sole elements that should have the mentioned relative size.
• the sole element according to the present invention is situated mainly laterally under the sole; i.e. that the largest part of, or the entire sole element, will lie laterally of an imaginary centre line along the shoe sole 1. More preferred at least 75 % of the area of the sole element is typically situated at the lateral side of such an imaginary, longitudinal centre line along the sole.

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Epidemiology (AREA)
• Public Health (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39468102

Family Applications (1)

Country Status (7)

Cited By (2)

Families Citing this family (5)

Citations (2)

Family Cites Families (19)

• 2006
  • 2006-11-14 NO NO20065239A patent/NO325629B1/no not_active IP Right Cessation
• 2007
  • 2007-11-12 RU RU2009122459/12A patent/RU2427297C2/ru not_active IP Right Cessation
  • 2007-11-12 WO PCT/NO2007/000396 patent/WO2008066388A1/en active Application Filing
  • 2007-11-12 EP EP07834802A patent/EP2091370A4/en not_active Withdrawn
  • 2007-11-12 US US12/447,674 patent/US20100024252A1/en not_active Abandoned
  • 2007-11-12 CN CN200780042109XA patent/CN101553143B/zh not_active Expired - Fee Related
  • 2007-11-12 JP JP2009537105A patent/JP2010509021A/ja active Pending

Patent Citations (2)

Non-Patent Citations (1)

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