WO1998047400A1 - Elastic footwear heel - Google Patents
Elastic footwear heel Download PDFInfo
- Publication number
- WO1998047400A1 WO1998047400A1 PCT/SI1998/000011 SI9800011W WO9847400A1 WO 1998047400 A1 WO1998047400 A1 WO 1998047400A1 SI 9800011 W SI9800011 W SI 9800011W WO 9847400 A1 WO9847400 A1 WO 9847400A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heel
- footwear
- elastic
- sole
- plate
- 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.)
- Ceased
Links
Classifications
-
- 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
- A43B21/32—Resilient supports for the heel of the foot
Definitions
- the object of the invention is an elastic heel of different footwear, also used e.g. in special orthopaedic shoes or even plaster casts.
- Known elastic heels are entirely made of an elastic material, for example of rubber or foam rubber.
- a special embodiment has a multi-layer heel.
- One intermediate layer is of an elastic material
- the lower treading layer is made of a mechanically resistant and profiled material
- the inner layer can easily be glued to the upper part of the footwear.
- the solution of the technical problem according to the invention is in that a spring element in the heel enables an elastic contraction of the heel only in direction rectangular to the ground, respectively in the axis of the person, while it prevents an inclined tilt of the heel at nonsymmetrical loading.
- This elastic insert does not essentially affect the outer appearance of the footwear thus offering a possibility of an optional design.
- Fig. 1 longitudinal section of the footwear with an elastic heel according to the first embodiment of the invention;
- a disadvantage of both solutions lies in that such a heel is not stable even at a proportionally insignificant extra-axial load.
- When wearing such footwear more carefulness is needed, especially when walking on rough ground.
- shearing forces occur that deform the elastic nature of the sole thus causing uncomfortable feeling and reducing user's balance.
- Such unpredictable transformation of the footwear contributes to a greater strain of both foot and ankle tissues and also to the risk or greater possibility of ankle sprain.
- the solution of the technical problem according to the invention is in that a spring element in the heel enables an elastic contraction of the heel only in direction rectangular to the ground, respectively in the axis of the person, while it prevents an inclined tilt of the heel at nonsymmetrical loading.
- This elastic insert does not essentially affect the outer appearance of the footwear thus offering a possibility of an optional design.
- footwear may be of any kind regardless of the purpose and shape. Different orthopaedic footwear is also suitable for the implementation of one or another embodiment. Finally, it is also possible to implement a separate heel, especially according to the second embodiment, for being placed under the heel part of the plaster cast.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
An elastic heel for any footwear, also special, such as orthopaedic or even plaster casts consists of the means ensuring parallel approaching and moving away of the sole part and the part under the inner heel section of the footwear, whereby an elastic element is placed between them and the heel is protected with a supple protecting casing.
Description
Elastic footwear heel
Background of the invention
The object of the invention is an elastic heel of different footwear, also used e.g. in special orthopaedic shoes or even plaster casts.
Technical problem
The technical problem solved by the invention is how to design such an elastic footwear heel to be applicable to any footwear without changing its outer appearance and assure firm treading.
State of the art
Known elastic heels are entirely made of an elastic material, for example of rubber or foam rubber. A special embodiment has a multi-layer heel. One intermediate layer is of an elastic material, the lower treading layer is made of a mechanically resistant and profiled material, and the inner layer can easily be glued to the upper part of the footwear.
Further known is a heel on sports footwear including transversally placed sticklike inserts made of an elastic material, while the sole together with the heel is made of a harder material. These inserts with different elasticity levels can be changed upon various needs.
A disadvantage of both solutions lies in that such a heel is not stable even at a proportionally insignificant extra-axial load. When wearing such footwear more carefulness is needed, especially when walking on rough ground. When walking or even running on an inclined ground, shearing forces occur that deform the elastic nature of the sole thus causing uncomfortable feeling and reducing user's balance. Such unpredictable transformation of the footwear contributes to a greater strain of both foot and ankle tissues and also to the risk or greater possibility of ankle sprain.
Both solutions mentioned are not suitable for different convalescents, e.g. those recovering from a broken leg, hip, spine. Pain and muscle atrophy make these persons rather unstable while walking, but they urgently need such footwear to absorb the shocks when walking especially on solid ground.
Solution of the technical problem
The solution of the technical problem according to the invention is in that a spring element in the heel enables an elastic contraction of the heel only in direction rectangular to the ground, respectively in the axis of the person, while it prevents an inclined tilt of the heel at nonsymmetrical loading. This elastic insert does not essentially affect the outer appearance of the footwear thus offering a possibility of an optional design.
The main characteristics of the invention will be explained in the continuation on the basis of the description of two embodiments which are shown on the enclosed drawing. The figures show:
Fig. 1 longitudinal section of the footwear with an elastic heel according to the first embodiment of the invention;
A disadvantage of both solutions lies in that such a heel is not stable even at a proportionally insignificant extra-axial load. When wearing such footwear more carefulness is needed, especially when walking on rough ground. When walking or even running on an inclined ground, shearing forces occur that deform the elastic nature of the sole thus causing uncomfortable feeling and reducing user's balance. Such unpredictable transformation of the footwear contributes to a greater strain of both foot and ankle tissues and also to the risk or greater possibility of ankle sprain.
Both solutions mentioned are not suitable for different convalescents, e.g. those recovering from a broken leg, hip, spine. Pain and muscle atrophy make these persons rather unstable while walking, but they urgently need such footwear to absorb the shocks when walking especially on solid ground.
Solution of the technical problem
The solution of the technical problem according to the invention is in that a spring element in the heel enables an elastic contraction of the heel only in direction rectangular to the ground, respectively in the axis of the person, while it prevents an inclined tilt of the heel at nonsymmetrical loading. This elastic insert does not essentially affect the outer appearance of the footwear thus offering a possibility of an optional design.
The main characteristics of the invention will be explained in the continuation on the basis of the description of two embodiments which are shown on the enclosed drawing. The figures show:
Fig. 1 longitudinal section of the footwear with an elastic heel according to the first embodiment of the invention;
the heel with the same intention as already explained in the first embodiment. It is possible to place yet another ornamental casing over the casing 22, which is not shown in the figure.
It is obvious for a person skilled in the art that also other variants - especially in the sense of industrial design - are possible on the basis of the described embodiments without circumventing the essence of the invention defined in the enclosed claims.
It is also understandable that the footwear may be of any kind regardless of the purpose and shape. Different orthopaedic footwear is also suitable for the implementation of one or another embodiment. Finally, it is also possible to implement a separate heel, especially according to the second embodiment, for being placed under the heel part of the plaster cast.
Claims
1. Elastic heel for any footwear, also for special purposes, such as orthopaedic shoes or plaster casts characterized in that it consists of the means ensuring parallel approaching and moving away of the sole part and of the part under the inner heel section of the footwear, whereby an elastic element for intercepting the forces occurring during walking and running is placed in between them and the heel is protected with a supple protecting casing.
2. Elastic heel according to claim 1 characterized in that it is arranged as a plate (1) shaped as the letter V, where one end (2) lies parallel and close to the inner layer (3) of the footwear, the second lower end (4) lies parallel and close above the sole (5) of the footwear and that the springiness of the material the plate (1) is made of enables opening and closing of both ends 2 and 4 at different loading only in parallel direction also at extra-axial loading.
3. Elastic heel, according to claims 1 and 2 characterized in that an additional elastic element (6) of any known construction can be inserted between the ends (2 and 4).
4. Elastic heel according to claims 1 to 3 characterized in that the whole plate (1) is closed in a supple casing (7) of any kind.
5. Elastic heel according to claim 1 characterized in that the heel is arranged of a sole (20) and an inner plate (21), with which the heel is placed on the heel inner part of the footwear, and of a telescopic peripheral device (22), whereby an element (23), preferably a spring, is placed in the interior between the sole (20) and the plate (21), while the peripheral device (22) can also be covered with a protective casing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SIP-9700102 | 1997-04-22 | ||
| SI9700102A SI9700102A2 (en) | 1997-04-22 | 1997-04-22 | Elastic heel of a shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998047400A1 true WO1998047400A1 (en) | 1998-10-29 |
Family
ID=20432031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SI1998/000011 Ceased WO1998047400A1 (en) | 1997-04-22 | 1998-04-22 | Elastic footwear heel |
Country Status (2)
| Country | Link |
|---|---|
| SI (1) | SI9700102A2 (en) |
| WO (1) | WO1998047400A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030003460A (en) * | 2001-07-02 | 2003-01-10 | 정남수 | A functional sole of a shoes with a flexible hill |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1332070A (en) * | 1918-08-16 | 1920-02-24 | Charles H Shamo | Shock-absorber for footwear |
| US1403970A (en) * | 1921-03-15 | 1922-01-17 | Lioy Paul | Heel cushion |
| US1746069A (en) * | 1927-09-10 | 1930-02-04 | Butzen Joseph | Appliance for boots and shoes |
| US2814132A (en) * | 1953-10-29 | 1957-11-26 | Montoscuro Joseph | Shoe construction |
| FR1227420A (en) * | 1959-03-06 | 1960-08-19 | Shock absorbing device for shoes | |
| US5159767A (en) * | 1990-06-11 | 1992-11-03 | Allen Don T | Orthopedic stabilizer attachment |
| EP0552994A1 (en) * | 1992-01-22 | 1993-07-28 | Beyl, Suzanne | Shoe, in particular a sports-shoe, comprising a spring located in the sole, enclosure and spring for such a shoe |
-
1997
- 1997-04-22 SI SI9700102A patent/SI9700102A2/en unknown
-
1998
- 1998-04-22 WO PCT/SI1998/000011 patent/WO1998047400A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1332070A (en) * | 1918-08-16 | 1920-02-24 | Charles H Shamo | Shock-absorber for footwear |
| US1403970A (en) * | 1921-03-15 | 1922-01-17 | Lioy Paul | Heel cushion |
| US1746069A (en) * | 1927-09-10 | 1930-02-04 | Butzen Joseph | Appliance for boots and shoes |
| US2814132A (en) * | 1953-10-29 | 1957-11-26 | Montoscuro Joseph | Shoe construction |
| FR1227420A (en) * | 1959-03-06 | 1960-08-19 | Shock absorbing device for shoes | |
| US5159767A (en) * | 1990-06-11 | 1992-11-03 | Allen Don T | Orthopedic stabilizer attachment |
| EP0552994A1 (en) * | 1992-01-22 | 1993-07-28 | Beyl, Suzanne | Shoe, in particular a sports-shoe, comprising a spring located in the sole, enclosure and spring for such a shoe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030003460A (en) * | 2001-07-02 | 2003-01-10 | 정남수 | A functional sole of a shoes with a flexible hill |
Also Published As
| Publication number | Publication date |
|---|---|
| SI9700102A2 (en) | 1998-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): US |
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| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
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| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| 122 | Ep: pct application non-entry in european phase |