EP0729307A1 - Shoe sole - Google Patents
Shoe soleInfo
- Publication number
- EP0729307A1 EP0729307A1 EP95900696A EP95900696A EP0729307A1 EP 0729307 A1 EP0729307 A1 EP 0729307A1 EP 95900696 A EP95900696 A EP 95900696A EP 95900696 A EP95900696 A EP 95900696A EP 0729307 A1 EP0729307 A1 EP 0729307A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shoe sole
- sole according
- container
- channel
- liquid
- 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
Links
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
- A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
- A43B13/203—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with a pump or valve
-
- 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
- A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
Definitions
- the invention relates to a shoe sole according to the preamble of patent claim 1.
- a shoe is known from US Pat. No. 4,446,634, the sole of which has two elastomeric containers communicating with one another in order to absorb shocks, such as occur during running.
- the first container is located in the heel area and is connected to a second container located essentially in the ball area via two parallel channels.
- Each of the channels has an adjustment option for changing the cross-section and has a check valve, so that the liquid is pumped through the one channel when the foot is placed from the heel into the ball area and when the foot rolls off the liquid from the ball area through the other is pumped back into the heel area.
- a disadvantage of this known shoe is that the liquid is pumped back and forth between the two containers under pressure from the foot. This means energy when putting on the heel and also when the foot rolls off when placing the ball of the foot, absorbed.
- This always energy-absorbing shoe sole acts like a loamy soil, so that the energy of the shocks is absorbed, but the movement is also hindered, since the liquid has to be pumped back through the ball of the foot into the heel area.
- a liquid container according to the invention located in the area of the arch of the foot which can be expanded like a balloon against its material tension, automatically conveys the liquid back into the container located in the heel area when the heel is relieved, so that the rolling motion of the foot by pumping the liquid around into the latter container is not disabled, i.e. no kinetic energy is absorbed by the foot. Energy absorption occurs only when the heel is put on due to the compression of the liquid, the pumping over into the other container and the associated pumping up of this container located in the area of the foot end.
- a further channel can be provided between the liquid containers, which channel closes in the direction of the other container by means of a check valve. is cash. This further channel then acts as a so-called "bypass" when the liquid flows back into the container located in the heel area.
- the damping properties can be adjusted by means of adjustable channel cross sections. As the cross-section of the connecting channel becomes smaller, the damping effect of the container located in the heel area then increases.
- the medium to be pumped is advantageously a liquid, since the compression of the liquid requires less spring energy and spring travel than the compression of a gas.
- the liquid should have a relatively temperature-independent viscosity.
- biodegradable oils or water mixed with an antifreeze can advantageously be used.
- the first liquid container is cylindrical or rotationally symmetrical and cannot be deformed in the radial direction, so that it has the shape of an accordion-like bellows, for example, which can only be deformed in the vertical direction.
- the recesses in which the liquid containers are located can, at the same time, be a pump chamber for a ventilation system, in which air can be conveyed into the interior of the shoe via air guide channels via the pump chamber, which can be connected to the atmosphere and can be deformed elastically by pressure.
- a ventilation system in which air can be conveyed into the interior of the shoe via air guide channels via the pump chamber, which can be connected to the atmosphere and can be deformed elastically by pressure.
- FIG. 1 shows a section of a first exemplary embodiment of a shoe sole according to the invention, seen along line I-I of FIG. 2,
- FIG. 2 shows a longitudinal section of the shoe sole, seen along the line II-II in FIG. 1,
- FIG. 3 shows a representation similar to FIG. 1 of the heel area of a further embodiment of the invention.
- a shoe sole 10 shown in the drawing consists of an outsole 12, an insole 14 and an intermediate midsole 16.
- the midsole 16, which is shown in plan view in FIG. 1, has a first recess 20 in the heel area 18 and between the heel region 18 and the ball region 22 there is a second recess 26 on the medial side, that is to say in the region of the arch of the foot 24, which is connected to the first recess 20.
- the first recess 20 serves to receive a first container 28 which can be axially compressed by pressure loading with the heel.
- This first container 28 is preferably cylindrical or rotationally symmetrical and cannot be deformed in the radial direction.
- this container 28 is a bellows which can be compressed in the vertical direction, as shown in FIG.
- the second recess 26 serves to receive a second container 30 which can be expanded like a balloon against its material tension. In the relaxed state, the second container 30 takes up the smallest possible volume.
- Both containers 28 and 30 are connected to one another via a first connecting channel 32, so that when the medium is pumped around, the second container 30 is inflated.
- the cross section of the first channel 32 is preferably adjustable, for example by means of a screw 34 forming a throttle 33, which can be operated from the outside.
- a screw 34 forming a throttle 33
- means which are not shown can be provided which prevent the screw 34 from rotating and thus prevent a change in the cross section.
- a second channel 36 is provided, parallel to the first channel 32.
- the second channel 36 can be closed by means of a check valve 38 in the direction of the second container 30, so that the medium contained in the containers 28 and 30 can only be pumped via the first channel 32 from the first to the second container when the heel is under pressure, but can flow back into the first container 28 through relief of the heel through both channels 32 and 36.
- the second channel 36 thus has a bypass function when the medium flows back into the first container 28.
- the second channel 36 can have a larger cross-section than the first channel 32.
- the first channel has a further check valve which opens in the direction of the second container. Then, when pressure is exerted by the heel, the medium is pumped from the first container through the first channel into the second container and, when the pressure is released, only flows back through the second channel into the first container. It is also provided that such a check valve can be pretensioned in the first channel, so that it only opens when a pressure determined by the pretension has built up in the first container. This enables greater energy absorption and thus better shock absorption. Means can also be provided with which the preload can be adjusted so that the damping properties of the shoe sole according to the invention can be adjusted on the one hand by the throttle 33 and on the other hand by the preload of the check valve in the first channel 32.
- the medium to be pumped is preferably a liquid which has a relatively temperature-independent viscosity. Water mixed with antifreeze or biodegradable oils are preferred.
- the recesses 20 and 26, in which the containers 28 and 30 are located form part of a pump chamber 40 of a ventilation system.
- the pump chamber 40 is delimited on the one hand by the recesses 20 and 26 and on the other hand by the insole 14.
- the insole 14 has air inlet openings 42 which can be closed by means of valve tongues 44. Air enters the pump chamber 40 via the air inlet openings 42, which is elastically compressed when subjected to pressure and presses the air into the air duct 50 through an air outlet opening 46 and a check valve 48.
- the air guide channels 50 run in the midfoot area essentially parallel to the first and second channels 32 and 36 and along the second recess 26.
- the insole 14 is perforated or designed with holes 51 so that the air pressed into the air duct 50 can escape into the front part of the shoe. All openings and channels of the ventilation system can have very large cross sections, since the ventilation system does not have to assume any damping properties.
- the ventilation system not only causes ventilation of the foot, but also the removal of any heat that may occur in the sole of the shoe, for example by heating the liquid flowing back and forth between the containers 28 and 30 in each step.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Steroid Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4339105 | 1993-11-16 | ||
DE4339105A DE4339105C2 (en) | 1993-11-16 | 1993-11-16 | Shoe sole |
PCT/EP1994/003712 WO1995013718A1 (en) | 1993-11-16 | 1994-11-10 | Shoe sole |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0729307A1 true EP0729307A1 (en) | 1996-09-04 |
EP0729307B1 EP0729307B1 (en) | 2002-06-12 |
Family
ID=6502721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95900696A Expired - Lifetime EP0729307B1 (en) | 1993-11-16 | 1994-11-10 | Shoe sole |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0729307B1 (en) |
KR (1) | KR100351107B1 (en) |
AT (1) | ATE218820T1 (en) |
DE (2) | DE4339105C2 (en) |
WO (1) | WO1995013718A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0021843D0 (en) * | 2000-09-06 | 2000-10-18 | Courtney William A | Fluid filled impact absorber |
GB2376415A (en) * | 2001-06-12 | 2002-12-18 | Huntleigh Technology Plc | Inflatable pad having restrictively interconnected bladder sections for stimulating blood flow via dorsal & plantar flexion of the foot |
KR100534033B1 (en) | 2003-07-12 | 2005-12-08 | 주식회사 피스포스 | Pumping means of shoes |
EP3585202B1 (en) * | 2017-02-27 | 2021-12-29 | Nike Innovate C.V. | Adjustable foot support systems including fluid-filled bladder chambers |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2800359A1 (en) * | 1978-01-05 | 1979-07-12 | Will Peter Dr | FOOTBED FOR ACTIVE FOOT TRAINING AND FOR THE FUNCTIONAL TREATMENT OF LEG DAMAGE |
FR2452889A1 (en) * | 1979-04-03 | 1980-10-31 | Reber Walter | DEVICE FOR FACILITATING THE LOCOMOTION OF A MAN MOVING ON FOOT ON THE GROUND |
SE8102124L (en) * | 1981-04-02 | 1982-10-03 | Lars Gustaf Birger Peterson | SOLE |
GB2114425B (en) * | 1982-02-05 | 1985-05-30 | Clarks Ltd | Sole units for footwear |
US4446634A (en) * | 1982-09-28 | 1984-05-08 | Johnson Paul H | Footwear having improved shock absorption |
DE3417497A1 (en) * | 1984-05-11 | 1985-11-14 | Walter A. Dr.med. 4920 Lemgo Laabs | Shoe with a support for the plantar-arch cupola |
GB9010336D0 (en) * | 1990-05-09 | 1990-06-27 | Seymour Robert | A sports shoe |
SE515945C2 (en) * | 1992-03-23 | 2001-10-29 | Sporttrauma Ab | Sole |
-
1993
- 1993-11-16 DE DE4339105A patent/DE4339105C2/en not_active Expired - Lifetime
-
1994
- 1994-11-10 WO PCT/EP1994/003712 patent/WO1995013718A1/en active IP Right Grant
- 1994-11-10 EP EP95900696A patent/EP0729307B1/en not_active Expired - Lifetime
- 1994-11-10 AT AT95900696T patent/ATE218820T1/en active
- 1994-11-10 DE DE59410138T patent/DE59410138D1/en not_active Expired - Lifetime
- 1994-11-10 KR KR1019960702529A patent/KR100351107B1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9513718A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE218820T1 (en) | 2002-06-15 |
WO1995013718A1 (en) | 1995-05-26 |
KR960705491A (en) | 1996-11-08 |
DE59410138D1 (en) | 2002-07-18 |
KR100351107B1 (en) | 2002-11-09 |
DE4339105A1 (en) | 1995-05-18 |
EP0729307B1 (en) | 2002-06-12 |
DE4339105C2 (en) | 1998-10-08 |
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