Classifications

• • 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
  • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
  • A43B13/10—Metal
• • 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
  • A43B13/12—Soles with several layers of different materials
• • 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
  • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
  • A43B13/145—Convex portions, e.g. with a bump or projection, e.g. 'Masai' type shoes
• • 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
  • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
  • A43B13/148—Wedged end portions
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B21/00—Heels; Top-pieces or top-lifts
  • A43B21/24—Heels; Top-pieces or top-lifts characterised by the constructive form
  • A43B21/26—Resilient heels

Definitions

• the present invention relates to a shoe.
• Shoes consist of a sole and an upper material that encloses the foot resting on the sole.
• the soles of shoes often have damping means with which the stress exerted on the foot or on the entire body of the runner when walking is to be alleviated.
• damping means are, for example, air cushions or cavities filled with gel.
• a sole with a multitude of damping elements is known (EP 0 695 514 AI).
• This sole has in the heel area, in the midfoot area and in the ball area a plurality of holes which extend in the transverse direction and which are intended to serve as cushioning pads. These holes are formed in different shapes and sizes and accordingly have a hard or soft damping effect.
• a recess is made in the sole from the rear end, which is open on the side, so that the underside region of the sole forms a plate which projects freely towards the rear.
• Such a sole has a heel area very soft damping characteristics.
• a sole for a training shoe is also known (DE 94 13 496 Ul), with which walking on the plane for training purposes is made more difficult.
• This sole is excluded in the area assigned to the heel, so that the user of the shoe can essentially only appear in the area of the ball of the foot. This is to achieve an effect like walking uphill on an incline of the order of 15 degrees or like climbing stairs.
• Such a shoe, which promotes the ball running is unsuitable from a health point of view, since the foot or the shoe is placed on the floor with the leg extended and the shock load is transmitted directly to the knee and hip joints and the spine, especially when the ball is running.
• the present invention has for its object to provide a shoe with which the shock loads occurring during running do not or only to a very small extent on the knee and hip joints and to be transferred to the spine.
• a shoe comprising a sole which extends from a rear heel area via a metatarsal area to a front ball or toe area and is formed from a sole body and a sole covering arranged on the underside of the sole body, and approximately from Midfoot area to Heel region extending recess, which is provided between the sole body and the sole covering, the region of the sole covering associated with the recess forming a pivoting element which is designed to be pivotable about a pivot axis arranged in the end region of the recess facing the midfoot region.
• the shoe according to the present invention has a sole formed from a sole body and from a sole covering, a recess extending approximately from the midfoot area to the heel area being provided in the area between the sole body and the sole covering, so that the area of the sole covering assigned to the recess is at Placement on a surface is pivoted upwards about a pivot axis, whereby the shoe is placed very softly on the surface.
• the shoe according to the present invention thus has a rounding effect, that is to say a rolling off when it is placed on the ground, as a result of which the impact load exerted on the sensitive joints or on the spine is significant is reduced.
• the wearer of the shoe is forced into a therapeutic basic posture, that is, into a posture with the knees bent, which relieves the spine even when standing.
• the invention is therefore based on the knowledge that, in conventional shoes, the shock load is transmitted directly to the joints and to the spine despite complex and expensive damping elements, since with these shoes the foot or the shoe can be placed on the ground with the leg extended.
• Figure 1 is a side view of a first embodiment of a shoe according to the present invention.
• FIG. 2 shows a side view of the shoe from FIG. 1 during loading of the heel area when putting on or rolling off
• Figure 3 is a side view of a second embodiment of a shoe according to the present invention
• Figure 4 is a side view of a third embodiment of a shoe according to the present invention.
• Figure 5 is a side view of a fourth embodiment of a shoe according to the present invention.
• FIG. 6 shows a side view of the shoe from FIG. 5 during the loading of the heel area when putting on or rolling off.
• FIGS. 1 to 6 designate identical or similar components of the shoe according to the present invention.
• the shoe 1 has a sole 2 and an upper 3 arranged thereon which surrounds a foot of a runner (not shown in FIGS. 1 to 6).
• the upper 3 can be closed by means of laces, Velcro fasteners or the like and has an opening 4 through which the foot extends with its ankle area upwards.
• the sole 2 extends from a rear heel area 6 via a metatarsal area 7 to a front ball or toe area 8, each of these areas 6, 7, 8 extending over approximately a third of the length of the shoe 1.
• the sole 2 is formed from a voluminous sole body 10 and a sole covering 11 arranged on its underside.
• the sole body 10 consists of a good cushioning material, such as a polyester urethane (PU) foam
• the sole covering 11 consists of an abrasion-resistant material, preferably profiled on its underside, such as hard rubber.
• the entire sole 2 has a thickness increasing from the ball or toe area 8 to the heel area 6, so that the sole 2 forms a wedge in the side view.
• the upper side of the sole encloses an angle ⁇ with the lower side of the sole, which lies in the range from approximately 8 degrees to approximately 20 degrees.
• a wedge-shaped recess 13 is provided between the sole body 10 and the sole covering 11, a wedge-shaped recess 13 is provided from the midfoot area 7 to the heel area 8.
• the sole body 10 forms a stop surface 15 adjacent to the recess 13.
• the sole covering 11 projects freely to the rear from a tip 13a of the recess 13 pointing towards the ball or toe region 8, this freely protruding region of the sole covering 11 forming a pivoting element 18 which surrounds the connecting region between the recess tip 13a and the Pivot element 18 and the remaining sole covering 11 can be pivoted upward against the stop surface 15 of the sole body 10.
• a pivot axis 20 about which the pivot element 18 extends through the sole covering 11 in the transverse direction adjacent to the recess tip 13a is pivotally arranged.
• a swivel angle ⁇ between the stop surface 15 and the swivel element 18 is in the range from approximately 10 degrees to approximately 30 degrees, in particular in the range from approximately 15 degrees to approximately 20 degrees.
• the tip 13a of the recess 13 and thus the pivot axis 20 are arranged in the area between the longitudinal center of the shoe 1 and the heel area 6, which extends approximately over a third of the length of the shoe 1.
• the sole covering 11 has considerable dimensional stability and / or bending stiffness, in particular in the region of the pivot axis 20 and the pivoting element 18, and is fiber-reinforced, as a result of which the sole covering 11 has considerable inherent rigidity.
• the shoe 1 touches when walking due to the wedge shape of the entire sole 2 when it is placed on a surface with its sole covering 11 in the heel region 6 and thus with its pivoting element 18 and the surface 22 Sole covering 11 is pressed against the stop surface 15 about the pivot axis 20.
• This pivoting movement of the swivel element 18 produces, despite the considerable dimensional stability of the sole covering 11, a very soft, yielding placement of the shoe 1 on the ground 22.
• the restoring force of the sole covering 11 is chosen such that at most thirty percent, if possible only ten percent of the weight of the runner (for example 65 kilograms to 75 kilograms) for which the shoe 1 is designed are sufficient for the pivot element 18 to press against the stop surface 15.
• the sole covering 11 has an obtuse angle of almost 180 degrees in the region of the swivel axis 20.
• This tilting of the shoe 1 causes the foot and the lower leg of the runner to be displaced somewhat forward in the running direction, as a result of which the knee is slightly bent between the lower leg and the thigh.
• the maximum load on the foot or on the sole 2 occurs only after the shoe 1 has been tipped over or after the knee of the runner has been bent, so that the recoil generated by the impact on the ground 22 on a leg already angled in the knee that resiliently absorbs the shock load around the knee joint with its leg skeleton and the muscles can.
• the shoe 1 according to the present invention thus causes the foot to roll off automatically when running, which in comparison to conventional shoes results in a much gentler transfer of the shock load to the body.
• FIG. 3 A second embodiment of the shoe according to the present invention is shown in Figure 3.
• This shoe 1 corresponds essentially to the shoe 1 described above; accordingly, identical or similar components are provided with identical reference symbols.
• the shoe 1 according to FIG. 3 has in the wedge-shaped recess 13 a material element in the form of a material wedge 25 which is formed from an open-cell foam.
• This material wedge 25 is attached to the stop surface 15 of the sole body 10 and to the swivel element 18 by means of an adhesive connection.
• the sole covering 11 is divided by a slot 27 in the region of the pivot axis 20.
• An embodiment without a slot is naturally also within the scope of the invention (cf. for example the fourth embodiment of the present invention shown in FIGS. 5 and 6).
• the sole covering 11 is designed to be flexible, for example by a taper, in the region of the pivot axis 20, because in this exemplary embodiment of the shoe 1 it is advantageous that during the placement phase of the shoe 1 in the heel region 6 on the The restoring force of the swivel element 18 is applied as far as possible only by the material wedge 25 to ensure that the shoe 1 is placed as softly as possible on the ground 22.
• a reinforcing plate 29 is inserted into the sole body 10 and extends approximately from the longitudinal center of the shoe 1 to the rear heel area 6.
• the reinforcing plate 29 consists of a metal plate or a fiber-reinforced plastic plate and is arranged at a distance above a pressure distribution part 16, the reinforcing plate 29 being adapted to the curvature of the pressure distribution part 16.
• the reinforcement plate 29 extends in the transverse direction over approximately three fifths to four fifths of the width of the shoe 1 and ensures during the mounting phase, during which the pivot element 18 is pressed against the stop surface 15, that the sole body 10 is not tipped down by the heel.
• FIG. 4 A third embodiment of the invention is shown in FIG. 4.
• This shoe 1 has essentially the same structure as the shoes 1 described above; accordingly, identical or similar components are provided with identical reference symbols.
• the wedge-shaped recess between the stop surface 15 and the swivel element 18 is enclosed by an air bellows 31.
• Two holes 32 are made in the sole body 10, which end at one end on the stop surface 15 and at the other end on the outside on the sole body 10.
• a valve 33 is inserted, which limits the escape of air from the air bellows 31 to the outside, so that when the pivoting element 18 is pressed in the direction of the stop surface 15 by the limited air outlet during the pivoting movement of the pivoting element 18, a predetermined one , relatively soft resistance is opposed.
• the pivoting element 18 of the sole covering 11 is formed in one piece with the remaining area of the sole covering 11 and has a certain dimensional stability or bending stiffness, so that it automatically swings back into the starting position after compression of the air bellows 31.
• the fourth embodiment according to FIG. 5 essentially corresponds to the second embodiment according to FIG. 3, only with the difference that the recess 13 is not wedge-shaped, but is essentially circular-section-shaped and is filled with a material element 25 made of open-pore plastic.
• the sole 2 is pulled up laterally according to a feature essential to the invention or with a very thin lateral cover in Provide the form of rubber side walls, which protect the plastic core to the outside and which can be easily compressed like a bellows.
• the effect of the recess 13 is formed such that when rolling over the pivot axis 20, the recess 13 or its filling by the material element 25 does not have an elastic resilient effect, but yields practically without force up to the stop at which the Sole covering 11 comes into contact with a hard, unyielding area of shoe 1.
• the shoe 1 according to one of the four embodiments described above is characterized in that the shoe 1 or the foot is automatically rolled off the surface when running. This is accomplished by the wedge-shaped recess 13 between the sole body 10 and the sole covering 11, because the sole covering 11 deflects upward with its pivoting element 18 under a load in the heel region 6, and an obtuse angle is formed on the sole 2 with a soft spring deflection , whose tip is arranged in the region of the pivot axis 20.
• the shoe 1 tilts forward by this obtuse angle, as a result of which the runner's knee is bent and the impact load is absorbed by the runner when the knee is bent.
• the shock load is not transmitted to the sensitive joints and spine, but is absorbed by the skeleton and the corresponding muscles.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Applications Claiming Priority (5)

Publications (2)

Family

ID=26060519

Family Applications (1)

Country Status (10)

Cited By (6)

Families Citing this family (68)

Family Cites Families (12)

• 1998
  • 1998-07-03 US US09/462,946 patent/US6341432B1/en not_active Expired - Lifetime
  • 1998-07-03 EP EP98940126A patent/EP0999764B1/fr not_active Expired - Lifetime
  • 1998-07-03 JP JP50635699A patent/JP3753745B2/ja not_active Expired - Lifetime
  • 1998-07-03 WO PCT/EP1998/004116 patent/WO1999003368A1/fr not_active Ceased
  • 1998-07-03 PT PT98940126T patent/PT999764E/pt unknown
  • 1998-07-03 ES ES98940126T patent/ES2194340T3/es not_active Expired - Lifetime
  • 1998-07-03 CA CA002294643A patent/CA2294643C/fr not_active Expired - Lifetime
  • 1998-07-03 AT AT98940126T patent/ATE239399T1/de active
  • 1998-07-03 DK DK98940126T patent/DK0999764T3/da active
• 2000
  • 2000-01-07 NO NO20000074A patent/NO317521B1/no not_active IP Right Cessation

Non-Patent Citations (1)

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