US20070227041A1 - Footwear bottom with anti-shock insert - Google Patents
Footwear bottom with anti-shock insert Download PDFInfo
- Publication number
- US20070227041A1 US20070227041A1 US11/725,303 US72530307A US2007227041A1 US 20070227041 A1 US20070227041 A1 US 20070227041A1 US 72530307 A US72530307 A US 72530307A US 2007227041 A1 US2007227041 A1 US 2007227041A1
- Authority
- US
- United States
- Prior art keywords
- shock
- insert
- rigid
- protuberances
- footwear bottom
- 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.)
- Abandoned
Links
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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
- A43B21/26—Resilient heels
- A43B21/28—Pneumatic heels filled with a compressible fluid, e.g. air, gas
-
- 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 present patent application relates to a moulded footwear bottom provided with a special anti-shock insert.
- Footwear bottoms moulded from plastic materials are traditionally provided with anti-shock inserts, that is to say a sort of shock-absorbing cushions mounted on the heel and designed to soften the repeated impacts with the ground suffered by the heel at every step.
- the said anti-shock inserts are produced according to a standardised process.
- an insert made of soft plastic material or a sort of air-filled cushion is incorporated in the material used to mould the bottom; in these cases, the insert or shock-absorbing cushion has a closed geometrical shape (circular, elliptical, square, etc.) and is drowned in the sole.
- the said inserts maintain their shock-absorbing function until they do not lose their elastic properties, which tend to attenuate over time according to the extent of the elastic deformation suffered at every stress.
- the pressure discharged on the said inserts is directly proportional to the weight of the user and can vary by several tens of kilograms with the same foot size.
- a different weight of the user corresponds to a different compression of the air contained in the cushion, with consequent mechanical stress that tends to detach the welded edges.
- the said edges must be welded according to heavy duty conditions that, although not frequent, require a higher and therefore more expensive quality standard for the entire production.
- a reduction of the maximum deformation of the anti-shock insert during its operating life would correspond to a reduction of production costs, selecting more economically convenient production techniques to guarantee a predefined reduced reliability.
- the purpose of the present invention is to devise a footwear bottom moulded from plastic materials provided with an anti-shock insert, whose elastic deformation does not exceed a predetermined threshold value, regardless of the users weight.
- the height of the said protuberances must be lower than the thickness of the anti-shock insert, in such a way that the insert can be elastically lowered under the weight of the foot, until the weight is discharged on the said protuberances, which act as supports thanks to their rigidity, thus preventing the additional elastic deformation of the shock-absorbing insert.
- the shock-absorbing insert is composed of an annular air cushion, with suitable shape and dimensions to be mounted in the heel, under the heel of the foot.
- the bottom is provided with a space that can exactly house the said cushion, being inserted externally on a rigid pin that protrudes from the centre of the heel, having a height lower than the thickness of the cushion.
- FIG. 1 is an axonometric view of the bottom of the invention
- FIG. 2 is a section with a transversal plane of the bottom of the invention on the heel;
- FIG. 3 is a section of FIG. 1 with the transversal plane III-III.
- the bottom ( 1 ) of the invention is moulded from a single piece of plastic material, either rubber or thermoplastic material, in which a back space ( 1 a ) and a front space ( 1 b ) are obtained during moulding to house corresponding shock-absorbing inserts that may consist, according to the specific case, in air cushions or pads of soft, elastically deformed material, such as thermoplastic rubber, vulcanised rubber, PVC or polyurethane.
- the shock-absorbing inserts consist in a first rear air cushion ( 2 a ) and a second front air cushion ( 2 b ).
- the first air cushion ( 2 a ) has an annular shape and suitable dimensions to be exactly housed in the said rear space ( 1 a ) of the bottom ( 1 ).
- a rigid “pin” ( 4 ) is inserted in the hole ( 3 ) in the centre of the cushion ( 2 a ), which protrudes from the bottom wall of the space ( 1 a ), with height lower than the thickness of the air cushion ( 2 a ), as shown in FIG. 2 .
- the second front air cushion ( 2 b ) is shaped as a tongue and is exactly housed in the front space ( 1 b ) on the half sole of the bottom ( 1 ), which is provided with a series of protuberances ( 5 ) obtained during moulding and shaped as rigid segments, that are exactly housed inside corresponding slots ( 6 ) provided on the second front air cushion ( 2 b ). Also in this case, the height of the protuberances ( 5 ) is lower than the thickness of the air cushion ( 2 b ), as shown in FIG. 3 .
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The present invention relates to a moulded footwear bottom, which incorporates one or more rigid protuberances (4, 5) that protrude from the upper surface and are engaged inside at least one shock-absorbing insert (2 a, 2 b) provided with corresponding slots (3, 6) designed to house the said rigid protuberances (4, 5).
Description
- The present patent application relates to a moulded footwear bottom provided with a special anti-shock insert.
- Footwear bottoms moulded from plastic materials are traditionally provided with anti-shock inserts, that is to say a sort of shock-absorbing cushions mounted on the heel and designed to soften the repeated impacts with the ground suffered by the heel at every step.
- The said anti-shock inserts are produced according to a standardised process.
- In particular, an insert made of soft plastic material or a sort of air-filled cushion is incorporated in the material used to mould the bottom; in these cases, the insert or shock-absorbing cushion has a closed geometrical shape (circular, elliptical, square, etc.) and is drowned in the sole.
- The said inserts maintain their shock-absorbing function until they do not lose their elastic properties, which tend to attenuate over time according to the extent of the elastic deformation suffered at every stress. The pressure discharged on the said inserts is directly proportional to the weight of the user and can vary by several tens of kilograms with the same foot size.
- This means that the same model of ant-shock insert mounted on the same type and size of shoe can have a longer or shorter operating life according to the user.
- In the case of inserts formed of air cushions, a problem is represented by the air-tightness and mechanical resistance of the perimeter welding line, since the said cushions are normally obtained by welding the edges of two semi-shells of soft, flexible material.
- Also in this case, a different weight of the user corresponds to a different compression of the air contained in the cushion, with consequent mechanical stress that tends to detach the welded edges.
- In view of the above, the said edges must be welded according to heavy duty conditions that, although not frequent, require a higher and therefore more expensive quality standard for the entire production.
- The same is true for inserts obtained from a pad of thermoplastic rubber or other materials that are elastically deformed under pressure, whose elastic characteristics are normally improved both in terms of efficacy and duration by means of expensive additives.
- In other words, a reduction of the maximum deformation of the anti-shock insert during its operating life would correspond to a reduction of production costs, selecting more economically convenient production techniques to guarantee a predefined reduced reliability.
- The purpose of the present invention is to devise a footwear bottom moulded from plastic materials provided with an anti-shock insert, whose elastic deformation does not exceed a predetermined threshold value, regardless of the users weight.
- This objective has been reached by the bottom of the invention, which incorporates one or more rigid protuberances that protrude from its upper surface and are engaged inside the said shock-absorbing insert, which is provided with suitable slots that house the said protuberances, being incapable of being elastically deformed under pressure.
- The height of the said protuberances must be lower than the thickness of the anti-shock insert, in such a way that the insert can be elastically lowered under the weight of the foot, until the weight is discharged on the said protuberances, which act as supports thanks to their rigidity, thus preventing the additional elastic deformation of the shock-absorbing insert.
- According to the preferred embodiment, the shock-absorbing insert is composed of an annular air cushion, with suitable shape and dimensions to be mounted in the heel, under the heel of the foot.
- The bottom is provided with a space that can exactly house the said cushion, being inserted externally on a rigid pin that protrudes from the centre of the heel, having a height lower than the thickness of the cushion.
- For purposes of clarity the description of the invention continues with reference to the enclosed drawing, which is intended for purposes of illustration only and not in a limiting sense, whereby:
-
FIG. 1 is an axonometric view of the bottom of the invention; -
FIG. 2 is a section with a transversal plane of the bottom of the invention on the heel; -
FIG. 3 is a section ofFIG. 1 with the transversal plane III-III. - With reference to the enclosed figures, the bottom (1) of the invention is moulded from a single piece of plastic material, either rubber or thermoplastic material, in which a back space (1 a) and a front space (1 b) are obtained during moulding to house corresponding shock-absorbing inserts that may consist, according to the specific case, in air cushions or pads of soft, elastically deformed material, such as thermoplastic rubber, vulcanised rubber, PVC or polyurethane. In the embodiment illustrated in the enclosed figures, the shock-absorbing inserts consist in a first rear air cushion (2 a) and a second front air cushion (2 b).
- The first air cushion (2 a) has an annular shape and suitable dimensions to be exactly housed in the said rear space (1 a) of the bottom (1). A rigid “pin” (4) is inserted in the hole (3) in the centre of the cushion (2 a), which protrudes from the bottom wall of the space (1 a), with height lower than the thickness of the air cushion (2 a), as shown in
FIG. 2 . The second front air cushion (2 b) is shaped as a tongue and is exactly housed in the front space (1 b) on the half sole of the bottom (1), which is provided with a series of protuberances (5) obtained during moulding and shaped as rigid segments, that are exactly housed inside corresponding slots (6) provided on the second front air cushion (2 b). Also in this case, the height of the protuberances (5) is lower than the thickness of the air cushion (2 b), as shown inFIG. 3 .
Claims (5)
1. Footwear bottom moulded from plastic materials, of the type moulded from a single piece of suitable material, which is provided with a rear space (1 a) and/or a front space (1 b) housing corresponding shock-absorbing inserts (2 a and 2 b) that are elastically deformed under pressure, characterised in that at least one of these spaces (1 a, 1 b) is provided with one or more rigid protuberances (4, 5) engaged inside corresponding slots (3, 6) of the shock-absorbing inserts (2 a, 2 b) with thickness higher than the height of the said rigid protuberances (4, 5).
2. Footwear bottom of claim 1 , characterised in that the rear insert (2 a) has an annular shape and a central hole (3) in which a rigid “pin” (4) is inserted, protruding from the bottom wall of the rear space (1 a), having a height lower than the thickness of the insert (2 a).
3. Footwear bottom of claim 1 , characterised in that the front insert (2 b) is shaped as a tongue and is exactly housed in the front space (1 b) on the half sole of the bottom (1), which is provided with a series of protuberances (5) obtained during moulding and shaped as rigid segments, that are exactly housed inside corresponding slots (6) provided on the front insert (2 b) with thickness higher than the height of the rigid protuberances (5).
4. Footwear bottom of claim 1 , characterised in that the said shock-absorbing inserts (2 a, 2 b) consist in air-filled cushions.
5. Footwear bottom of claim 1 , characterised in that the shock-absorbing inserts (2 a, 2 b) consist in soft pads moulded from materials that are elastically deformed under pressure.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMC2006A000033 | 2006-03-29 | ||
IT000033A ITMC20060033A1 (en) | 2006-03-29 | 2006-03-29 | SHOE FOR FOOTWEAR EQUIPPED WITH AN ANTISHOCK INSERT. |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070227041A1 true US20070227041A1 (en) | 2007-10-04 |
Family
ID=38556797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/725,303 Abandoned US20070227041A1 (en) | 2006-03-29 | 2007-03-19 | Footwear bottom with anti-shock insert |
Country Status (2)
Country | Link |
---|---|
US (1) | US20070227041A1 (en) |
IT (1) | ITMC20060033A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090126225A1 (en) * | 2007-10-23 | 2009-05-21 | Nike, Inc. | Articles And Methods Of Manufacturing Articles |
US20100095556A1 (en) * | 2007-10-23 | 2010-04-22 | Nike, Inc. | Articles And Methods Of Manufacture Of Articles |
US20140059888A1 (en) * | 2010-09-14 | 2014-03-06 | Nike, Inc. | Article of Footwear With Elongated Shock Absorbing Heel System |
US20150208760A1 (en) * | 2014-01-24 | 2015-07-30 | Tung-Cheng Chen | Sole for rehabilitation footwear |
US20160242502A1 (en) * | 2015-02-25 | 2016-08-25 | NIKE, lnc. | Article of Footwear With A Lattice Sole Structure |
US9788603B2 (en) | 2007-10-23 | 2017-10-17 | Nike, Inc. | Articles and methods of manufacture of articles |
US20170332733A1 (en) * | 2014-10-31 | 2017-11-23 | Rsprint N.V. | Insole design |
US10010133B2 (en) | 2015-05-08 | 2018-07-03 | Under Armour, Inc. | Midsole lattice with hollow tubes for footwear |
US10010134B2 (en) | 2015-05-08 | 2018-07-03 | Under Armour, Inc. | Footwear with lattice midsole and compression insert |
US10039343B2 (en) | 2015-05-08 | 2018-08-07 | Under Armour, Inc. | Footwear including sole assembly |
US10226098B2 (en) | 2013-03-14 | 2019-03-12 | Under Armour, Inc. | Method of making a zonal compression shoe |
US10779614B2 (en) | 2017-06-21 | 2020-09-22 | Under Armour, Inc. | Cushioning for a sole structure of performance footwear |
USD958507S1 (en) * | 2021-04-29 | 2022-07-26 | Donghui Li | Sole |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4047310A (en) * | 1976-04-19 | 1977-09-13 | Sunoo Hyeng P | Fatigue relieving foot appliance |
US6205684B1 (en) * | 1998-11-13 | 2001-03-27 | Zephyr Athletic Footwear, Inc. | Strike pad assembly |
US6789333B2 (en) * | 2001-05-11 | 2004-09-14 | Asics Corporation | Midsole including cushioning structure |
US7020988B1 (en) * | 2003-08-29 | 2006-04-04 | Pierre Andre Senizergues | Footwear with enhanced impact protection |
US20060213091A1 (en) * | 2003-08-01 | 2006-09-28 | Walter Ometto | Shoe with foot massaging sole |
US20060236563A1 (en) * | 2005-04-12 | 2006-10-26 | Wang Swei M | Shoe sole having soft cushioning device |
US7328524B2 (en) * | 2005-01-06 | 2008-02-12 | Columbia Insurance Company | Shoe with improved ventilation |
US7523566B2 (en) * | 2005-06-03 | 2009-04-28 | Treksta, Inc | Shoe sole |
-
2006
- 2006-03-29 IT IT000033A patent/ITMC20060033A1/en unknown
-
2007
- 2007-03-19 US US11/725,303 patent/US20070227041A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4047310A (en) * | 1976-04-19 | 1977-09-13 | Sunoo Hyeng P | Fatigue relieving foot appliance |
US6205684B1 (en) * | 1998-11-13 | 2001-03-27 | Zephyr Athletic Footwear, Inc. | Strike pad assembly |
US6789333B2 (en) * | 2001-05-11 | 2004-09-14 | Asics Corporation | Midsole including cushioning structure |
US20060213091A1 (en) * | 2003-08-01 | 2006-09-28 | Walter Ometto | Shoe with foot massaging sole |
US7020988B1 (en) * | 2003-08-29 | 2006-04-04 | Pierre Andre Senizergues | Footwear with enhanced impact protection |
US7328524B2 (en) * | 2005-01-06 | 2008-02-12 | Columbia Insurance Company | Shoe with improved ventilation |
US20060236563A1 (en) * | 2005-04-12 | 2006-10-26 | Wang Swei M | Shoe sole having soft cushioning device |
US7523566B2 (en) * | 2005-06-03 | 2009-04-28 | Treksta, Inc | Shoe sole |
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9795181B2 (en) * | 2007-10-23 | 2017-10-24 | Nike, Inc. | Articles and methods of manufacture of articles |
US9788603B2 (en) | 2007-10-23 | 2017-10-17 | Nike, Inc. | Articles and methods of manufacture of articles |
US9572402B2 (en) | 2007-10-23 | 2017-02-21 | Nike, Inc. | Articles and methods of manufacturing articles |
US11224265B2 (en) | 2007-10-23 | 2022-01-18 | Nike, Inc. | Articles and methods of manufacture of articles |
US9788604B2 (en) | 2007-10-23 | 2017-10-17 | Nike, Inc. | Articles and method of manufacture of articles |
US20100095556A1 (en) * | 2007-10-23 | 2010-04-22 | Nike, Inc. | Articles And Methods Of Manufacture Of Articles |
US10681961B2 (en) | 2007-10-23 | 2020-06-16 | Nike, Inc. | Articles and methods of manufacture of articles |
US9788594B2 (en) | 2007-10-23 | 2017-10-17 | Nike, Inc. | Articles and methods of manufacture of articles |
US9883717B2 (en) | 2007-10-23 | 2018-02-06 | Nike, Inc. | Articles and methods of manufacture of articles |
US20090126225A1 (en) * | 2007-10-23 | 2009-05-21 | Nike, Inc. | Articles And Methods Of Manufacturing Articles |
US10798995B2 (en) | 2007-10-23 | 2020-10-13 | Nike, Inc. | Articles and methods of manufacture of articles |
US9289026B2 (en) * | 2010-09-14 | 2016-03-22 | Nike, Inc. | Article of footwear with elongated shock absorbing heel system |
US10376017B2 (en) | 2010-09-14 | 2019-08-13 | Nike, Inc. | Article of footwear with elongated shock absorbing heel system |
US9192209B2 (en) | 2010-09-14 | 2015-11-24 | Nike, Inc. | Article of footwear with elongated shock absorbing heel system |
US9867428B2 (en) | 2010-09-14 | 2018-01-16 | Nike, Inc. | Article of footwear with elongated shock absorbing heel system |
US20140059888A1 (en) * | 2010-09-14 | 2014-03-06 | Nike, Inc. | Article of Footwear With Elongated Shock Absorbing Heel System |
US9351533B2 (en) | 2010-09-14 | 2016-05-31 | Nike, Inc. | Article of footwear with elongated shock absorbing heel system |
US10743610B2 (en) | 2013-03-14 | 2020-08-18 | Under Armour, Inc. | Shoe with lattice structure |
US11547177B2 (en) | 2013-03-14 | 2023-01-10 | Under Armour, Inc. | Shoe with lattice structure |
US10226098B2 (en) | 2013-03-14 | 2019-03-12 | Under Armour, Inc. | Method of making a zonal compression shoe |
US11425963B2 (en) | 2013-03-14 | 2022-08-30 | Under Armour, Inc. | Shoe with lattice structure |
US10470519B2 (en) | 2013-03-14 | 2019-11-12 | Under Armour, Inc. | Shoe with lattice structure |
US10470520B2 (en) | 2013-03-14 | 2019-11-12 | Under Armour, Inc. | Shoe with lattice structure |
US10575586B2 (en) | 2013-03-14 | 2020-03-03 | Under Armour, Inc. | Shoe with lattice structure |
US20150208760A1 (en) * | 2014-01-24 | 2015-07-30 | Tung-Cheng Chen | Sole for rehabilitation footwear |
US20170332733A1 (en) * | 2014-10-31 | 2017-11-23 | Rsprint N.V. | Insole design |
US11344083B2 (en) * | 2014-10-31 | 2022-05-31 | Rsprint N.V. | Insole design |
US10143266B2 (en) * | 2015-02-25 | 2018-12-04 | Nike, Inc. | Article of footwear with a lattice sole structure |
US20160242502A1 (en) * | 2015-02-25 | 2016-08-25 | NIKE, lnc. | Article of Footwear With A Lattice Sole Structure |
US10010134B2 (en) | 2015-05-08 | 2018-07-03 | Under Armour, Inc. | Footwear with lattice midsole and compression insert |
US10702012B2 (en) | 2015-05-08 | 2020-07-07 | Under Armour, Inc. | Footwear midsole with lattice structure formed between platforms |
US10750820B2 (en) | 2015-05-08 | 2020-08-25 | Under Armour, Inc. | Midsole lattice with hollow tubes for footwear |
US10010133B2 (en) | 2015-05-08 | 2018-07-03 | Under Armour, Inc. | Midsole lattice with hollow tubes for footwear |
US10575587B2 (en) | 2015-05-08 | 2020-03-03 | Under Armour, Inc. | Footwear including sole assembly |
US10039343B2 (en) | 2015-05-08 | 2018-08-07 | Under Armour, Inc. | Footwear including sole assembly |
US11369164B2 (en) | 2015-05-08 | 2022-06-28 | Under Armour, Inc. | Footwear including sole assembly |
US10231511B2 (en) | 2015-05-08 | 2019-03-19 | Under Armour, Inc. | Interwoven lattice structure for cushioning member |
US11457693B2 (en) | 2015-05-08 | 2022-10-04 | Under Armour, Inc. | Footwear midsole with lattice structure formed between platforms |
US10104934B2 (en) | 2015-05-08 | 2018-10-23 | Under Armour, Inc. | Footwear including sole assembly |
US10779614B2 (en) | 2017-06-21 | 2020-09-22 | Under Armour, Inc. | Cushioning for a sole structure of performance footwear |
USD958507S1 (en) * | 2021-04-29 | 2022-07-26 | Donghui Li | Sole |
Also Published As
Publication number | Publication date |
---|---|
ITMC20060033A1 (en) | 2007-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ALBA RAPPRESENTANZE DI MENGHINI GIUSEPPE E C. S.A. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MENGHINI, FAUSTO;REEL/FRAME:019107/0751 Effective date: 20070315 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |