DK2732716T3 - Shock absorber - Google Patents

Shock absorber Download PDF

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Publication number
DK2732716T3
DK2732716T3 DK12192518.4T DK12192518T DK2732716T3 DK 2732716 T3 DK2732716 T3 DK 2732716T3 DK 12192518 T DK12192518 T DK 12192518T DK 2732716 T3 DK2732716 T3 DK 2732716T3
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DK
Denmark
Prior art keywords
shock absorber
elastic member
insole
shoe
elasticity
Prior art date
Application number
DK12192518.4T
Other languages
Danish (da)
Inventor
Peter Geisler
Original Assignee
Arbesko Gruppen Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arbesko Gruppen Ab filed Critical Arbesko Gruppen Ab
Application granted granted Critical
Publication of DK2732716T3 publication Critical patent/DK2732716T3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/0031—Footwear characterised by the shape or the use provided with a pocket, e.g. for keys or a card
    • 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
    • A43B13/181—Resiliency achieved by the structure of the sole
    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/40—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process with cushions
    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/36—Heels; Top-pieces or top-lifts characterised by their attachment; Securing devices for the attaching means
    • A43B21/42—Heels with replaceable or adjustable parts, e.g. top lift
    • 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
    • A43B7/144—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 heel, i.e. the calcaneus bone
    • 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
    • A43B7/1475—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 type of support
    • A43B7/148—Recesses or holes filled with supports or pads
    • 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
    • A43B7/1475—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 type of support
    • A43B7/149—Pads, e.g. protruding on the foot-facing surface

Landscapes

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

Description

TECH NI CAL FI ELD
[0001] The invention relates to a shock absorber for use in a heel section of an insole of a shoe.
BACKGROUND
[0002] In order to improve comfort of a shoe for a wearer, it is known in the art to provide a heel section of the shoe with a shock absorber for relieving the pressure on the wearer's feet.
[0003] Whether a person is running, walking or even just standing still, a substantive force acts on her feet, and in particular on her heels, where a major part of the body weight is balanced. This is even more evident in case the person stands on a hard surface, such as concrete, which is often the case in e.g. industrial environments. This can ultimately lead to back and knee injuries.
[0004] When comparing elasticity of the up to 2 cm thick fibrofatty body tissue located under the heel bone of a population of individuals, the degree of elasticity may vary up to 50% for two given individuals in the population. Further, the elasticity of an individual's heel tissue is not the same at an outer part of the heel as compared to a heel centre part. A problem with shock absorbers in the art is that they are not adapted to this varying elasticity in heel tissue.
[0005] GB 2 225 212 discloses a damping system comprising a hollow housing to be removably fitted into a cavity of an insole of a sport shoe. The damping system further comprises a damping element of flexible elastomeric material to be fitted within the hollow housing.
[0006] EP 1 714 571 discloses a shoe sole product, such as a sole, an insole or a midsole, being formed from elastomeric material of a predetermined hardness, and at the heel part has a central region formed from relatively softer material, the central region being surrounded by a ring of material whose hardness is intermediate the hardness of the sole product and the central region.
SUMMARY
[0007] An object of the present invention is to solve or at least mitigate this problem in the art and to provide an improved shock absorber.
[0008] This object is attained in a first aspect of the present invention by a shock absorber for use in a heel section of an insole of a shoe. The shock absorber comprises a first elastic member having a first elasticity and a second elastic member having a second elasticity, which second elastic member is arranged to be integrated with the first elastic member, wherein the second elastic member has a greater elasticity than the first member.
[0009] Thus, by providing the shock absorber according the present invention, it is possible to advantageously adapt to different elasticity properties of the heel tissue of an individual, and further to adapt to varying elasticity properties among a population of individuals.
[0010] In an embodiment of the present invention, the second elastic member is arranged at a center of the first elastic member. Thus, when in use, the second elastic member will be compressed to a higher degree than the first member due to its greater elasticity. By arranging the second elastic member at the center of the first elastic member, the shock absorber according to this embodiment will become bowl-shaped around the heel of the wearer of the shoe in which the shock absorber is arranged and thus advantageously improve the comfort of the wearer.
[0011] In an embodiment, the first elastic member has a Shore A value of approximately 20 and the second elastic member having a Shore A value of about 10. Thus, the hardness of the first elastic member is about twice that of the second elastic member. It should be noted that the respective hardness of the first and second elastic member may take on other Shore A values than these two. Generally, the shock absorber of the present invention is positioned between the relatively soft heel of a wearer of a shoe and the hard surface underneath the shoe. Thus, the second elastic member is slightly softer than the body tissue surrounding the heel while the first elastic member is slightly harder.
[0012] The shock absorber according to the present invention can be made of e.g. polyurethane plastics such as thermoplastic polyurethane (TPU) or thermoplastic rubbers (TR).
[0013] The second elastic member is arranged to be selectively removable from the first elastic member. Thus, since the wearer can insert and remove the second elastic member from the first elastic member, the elasticity of the shock absorber can be even further adapted to the individual wearer in that second elastic members having different measures of hardness may be inserted in the first elastic member at a choice of the individual wearer.
[0014] The object of the invention is further attained in a second aspect by an insole comprising the shock absorber of the first aspect.
[0015] The object of the invention is further attained in a third aspect by a shoe comprising the insole of the second aspect.
[0016] It is noted that the invention relates to all possible combinations of features recited in the claims. Further features of, and advantages with, the present invention will become apparent when studying the appended claims and the following description. Those skilled in the art realize that different features of the present invention can be combined to create embodiments other than those described in the following.
BRI EF DESCRI PTI ON OF THE DRAWI NGS
[0017] The invention is now described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 shows a perspective view of a prior art shock absorber 10 to be arranged in a heel section of a shoe;
Figures 2a-d show the prior art shock absorber in a section taken along line A-A of Figure 1;
Figure 3 shows a perspective view of a shock absorber to be arranged in a heel section of a shoe according to an embodiment of the present invention;
Figure 4 shows a top view of a shock absorber according to embodiments of the present invention;
Figure 5a shows a sectional view of a shock absorber according to an embodiment of the invention arranged in the heel section of an insole;
Figure 5b shows a sectional view of the shock absorber of Figure 5a arranged in the heel section of an insole, which insole further is mounted in a shoe;
Figure 6 shows a top view of the insole of Figure 5, in which the shock absorber of the present invention is arranged;
Figure 7 shows yet another embodiment of the present invention where the second elastic member is arranged to be selectively removable from the first elastic member; and
Figures 8a-d show the shock absorber according to embodiments of the present invention in a section taken along line B-B shown in Figure 4.
DETAI LED DESCRI PTI ON
[0018] The invention will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout the description.
[0019] Figure 1 shows a perspective view of a prior art shock absorber 10 to be arranged in a heel section of a shoe. As can be seen, the shock absorber comprises a waist part 11 around which a insole (not shown) will be tightly arranged in order to create a locking engagement with the shock absorber 10. Further, the shock absorber 10 comprises a top part 12 extending radially from the waist part 11 and a bottom part 13 on which the shock absorber rests, which bottom part extends radially from the waist part. When arranged at the heel section of a shoe, an inlaysole (not shown) is placed on the top part 12. Further, the prior art shock absorber 10 comprises a plurality of cavities 14 extending from the top part 12 through the waist part 11 and in to the bottom part 13. The shock absorber is made of an elastic material, typically rubber.
[0020] Figures 2a-d show the shock absorber 10 in a section taken along line A-A of Figure 1 in different degrees of deformation. Figure 2a shows a cross section of the shock absorber when no force is applied to the top part 12. Figure 2b illustrates the elasticity of the shock absorber 10 when a force F is applied to the top part 12. In use, this force will be embodied by the weight of a wearer of the shoe. Figures 2c and 2d show deformation of the shock absorber as the force F applied by the wearer's heel to the top part 12 increases. The deformation is further facilitated by the cavities 14. The elasticity of the prior art shock absorber 10 greatly improves the comfort of the wearer of the shoe in which the shock absorber is arranged.
[0021] Figure 3 shows a perspective view of a shock absorber 20 to be arranged in a heel section of a shoe according to an embodiment of the present invention. According to the invention, the shock absorber 20 comprises a first elastic member 25 having a first elasticity and a second elastic member 26 having a second elasticity, which second elastic member is arranged to be integrated with the first elastic member, wherein the second elastic member has a greater elasticity than the first member. Thus, when a force F is applied to the shock absorber 20 of the present invention, as is discussed in connection to the prior art shock absorber 10 shown in Figures 2a-d, the shock absorber 20 of the present invention will be even more compressed at its centre, where the softer second elastic member 26 is arranged.
[0022] Figure 4 shows a top view of the shock absorber 20 according to embodiments of the present invention, illustrating that the second elastic member 26 is arranged at the centre of the first elastic member 25.
[0023] Again with reference to Figure 3, it can be seen that the shock absorber 20 according to an embodiment of the present invention comprises a waist part 21 around which a insole (not shown) will be tightly arranged in order to create a locking engagement with the shock absorber 20. Further, the shock absorber 20 comprises a top part 22 extending radially from the waist part 21 and a bottom part 23 on which the shock absorber rests, which bottom part extends radially from the waist part. When arranged at the heel section of a shoe, an inlaysole (not shown) is placed on the top part 22. In an embodiment, the top part 22 extends further in a radial direction than the bottom part 23, thus acting as a gasket against an upper side of the insole (not shown) in which the shock absorber is arranged.
[0024] Figure 5a shows a sectional view of the shock absorber 20 according to an embodiment of the invention arranged in the heel section of an insole 30. As can be seen, the height of the waist part 21 is adapted to the thickness of the insole 30. Further, the bottom part 23 and the top part 22 are arranged to sandwich the insole 30 which encloses the waist part 21 in order to retain the shock absorber 20 in locking engagement with the insole. As can be seen, the second elastic member 26 is positioned in a cavity of the waist part 21.
[0025] Figure 5b shows a sectional view of the shock absorber 20 and the insole 30 of Figure 5a when mounted in a shoe 40 according to an embodiment of the present invention. As can be seen, a heel section 41 of the shoe 40 is arranged with an accommodation 42 for receiving and housing the bottom part 23 of the shock absorber 20.
[0026] Figure 6 shows a top view of the insole 30 of Figure 5, in which the shock absorber 20 of the present invention is arranged, which shock absorber comprises the first elastic part 25 and the second elastic part 26. As can be deducted from Figure 6, when a wearer of a shoe (not shown) in which the insole 30 is arranged places her heel on the shock absorber 20, the centre part of her heel will press the second elastic member 26 in a direction towards the surface on which the shoe rests, and the second elastic member 26 will be compressed to a higher degree than the first elastic member 25 due to its greater elasticity. Thus, the shock absorber 20 of the present invention will adapt to the elasticity of the body tissue located under the heel bone of the foot.
[0027] Figure 7 shows the second elastic member 26 is arranged to be selectively removable from the first elastic member 25. The shock absorber according to an embodiment of the invention has in its top part 22 an opening 27 through which the second elastic member 26 is inserted into the cavity 28 of the waist part. Thus, since the wearer can insert and remove the second elastic member 26 from the first elastic member 25, the elasticity of the shock absorber can be even further adapted to the individual wearer in that second elastic members having different measures of hardness may be inserted in the first elastic member at a choice of the individual wearer.
[0028] With further reference to Figure 7, in an embodiment of the present invention the top part 22 of the first member 25 comprises a flange 29 arranged at a circumference of the opening 27 trough which the second elastic member 26 is inserted into the cavity 28 of the waist part. Advantageously, the flange 29 facilitates retention of the second member 26 in the cavity 28.
[0029] In yet another embodiment of the present invention, the cavity 28 in the waist part has a bottom section arranged with openings to a plurality of cavities 24 extending into the bottom part, where each cavity is separated from adjacent cavities by a corresponding wall member 30. As was described with reference to Figure 2, the cavities 24 will facilitate deformation of the chock absorber when acted upon by a compressing force.
[0030] Figures 8a-d shows the shock absorber 20 according to embodiments of the present invention in a section taken along line B-B shown in Figure 4 in different degrees of deformation. Figure 8a shows a cross section of the shock absorber 20 when no force is applied to the top part 22. Figure 8b illustrates the elasticity of the shock absorber 20 when a force F is applied to the top part 22. In use, this force will be embodied by the weight of a wearer of the shoe. Figures 8c and 8d show deformation of the shock absorber 20 as the force F applied by the wearer's heel to the top part 22 steadily increases. The elasticity of the shock absorber 20 of the present invention greatly improves the comfort of the wearer of the shoe in which the shock absorber is arranged. Further, as compared to the prior art shock absorber 10 shown in Figures 1 and 2, due to the second elastic member 26 having a greater elasticity than the first elastic member 25, the shock absorber 20 of the present invention will be more compressed at its centre section where a majority of the force F is applied, thus creating a bowl-like support around the heel of the wearer.
[0031] Even though the invention has been described with reference to specific exemplifying embodiments thereof, many different alterations, modifications and the like will become apparent for those skilled in the art. The described embodiments are therefore not intended to limit the scope of the invention, as defined by the appended claims.

Claims (9)

1. Støddæmper (20) til brug i en hælsektion (41) af en skos (40) indersål, omfattende: - en første elastisk del (25) med en første elasticitet, og - en anden elastisk del (26) med en anden elasticitet, hvilken anden elastiske del (26) er arrangeret til integrering med den første elastiske del (25), hvori den anden elastiske del (26) har en større elasticitet end den første elastiske del (25), hvilken støddæmper er kendetegnet ved, at den anden elastiske del (26) er arrangeret til at kunne fjernes fra den første elastiske del (25).A shock absorber (20) for use in a heel section (41) of the insole of a shoe (40), comprising: - a first elastic member (25) with a first elasticity, and - a second elastic member (26) with a second elasticity said second resilient member (26) arranged for integration with said first resilient member (25), wherein said second resilient member (26) has a greater elasticity than said first resilient member (25), characterized in that it second elastic member (26) is arranged to be removable from said first elastic member (25). 2. Støddæmper (20) ifølge krav 1, hvilken anden elastiske del (26) er arrangeret ved en centrum af den første elastiske del (25).The shock absorber (20) of claim 1, said second resilient member (26) being arranged at a center of said first resilient member (25). 3. Støddæmper (20) ifølge ethvert af krav 1-3, hvilken første elastiske del (25) har en Shore A værdi på 20, og den anden elastiske del (26) har en Shore A værdi på 10.Shock absorber (20) according to any of claims 1-3, said first resilient portion (25) having a Shore A value of 20 and the second resilient portion (26) having a Shore A value of 10. 4. Støddæmper (20) ifølge ethvert af de foregående krav, hvor den første elastiske del (25) omfatter - en taljedel (21) omfattende et hulrum (28), i hvilket den anden del (26) er arrangeret, - et overdel (22) omfattende en åbning (27), gennem hvilken den anden elastiske del (26) er indført i taljedelens (21) hulrum (28), hvilken overdel (22) strækker sig radielt fra taljedelen (21), og - en underdel (23), på hvilken støddæmperen (20) hviler, hvilken underdel (23) strækker sig radielt fra taljedelen (21).A shock absorber (20) according to any one of the preceding claims, wherein the first resilient portion (25) comprises - a waist portion (21) comprising a cavity (28) in which the second portion (26) is arranged, - a top portion ( 22) comprising an opening (27) through which the second resilient portion (26) is inserted into the cavity (28) of the waist portion (21), the upper portion (22) extending radially from the waist portion (21), and - a lower portion (23) ) on which the shock absorber (20) rests, the lower part (23) extending radially from the waist part (21). 5. Støddæmper (20) ifølge krav 4, hvilken første elastiske del (25) er arrangeret sådan, at en højde af taljedelen (21) er tilpasset en tykkelse af en indersål (30), i hvilken støddæmperen (20) skal arrangeres, og hvor underdelen (23) og overdelen (21) er arrangeret til at have indersålen (30) imellem sig, idet taljedelen (21) indesluttes for at holde støddæmperen (20) i låsende indgreb med indersålen (30).The shock absorber (20) of claim 4, wherein the first elastic member (25) is arranged such that a height of the waist portion (21) is adapted to a thickness of an insole (30) in which the shock absorber (20) is to be arranged, and wherein the lower part (23) and the upper part (21) are arranged to have the insole (30) between them, the waist portion (21) being enclosed to keep the shock absorber (20) in locking engagement with the insole (30). 6. Støddæmper (20) ifølge krav 4 eller 5, hvilken overdel (22) af den første del (25) omfatter en flange (29) arrangeret ved en omkreds af den åbning (27), gen nem hvilken den anden elastiske del (26) er indført i taljedelens (21) hulrum (28) for at holde den anden del (26) hulrummet (28).Shock absorber (20) according to claim 4 or 5, the upper part (22) of the first part (25) comprising a flange (29) arranged at a circumference of the opening (27) through which the second elastic part (26) ) is inserted into the cavity (28) of the waist portion (21) to hold the second portion (26) of the cavity (28). 7. Støddæmper (20) ifølge ethvert af de foregående krav, hvor hulrummet (28) i taljedelen (21) har en bundsektion indrettet med åbninger mod en flerhed af hulrum (24), som strækker sig ind i underdelen (23), hvor hvert hulrum er adskilt fra tilstødende hulrum med et modsvarende vægelement (31).Shock absorber (20) according to any one of the preceding claims, wherein the cavity (28) of the waist portion (21) has a bottom section arranged with apertures against a plurality of cavities (24) extending into the lower part (23), each of which cavities are separated from adjacent cavities by a corresponding wall element (31). 8. Indersål (30) omfattende støddæmper (20) ifølge ethvert af krav 1-7.Insole (30) comprising shock absorber (20) according to any of claims 1-7. 9. Sko (40) omfattende indersålen (30) ifølge krav 8.The shoe (40) comprising the insole (30) of claim 8.
DK12192518.4T 2012-11-14 2012-11-14 Shock absorber DK2732716T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12192518.4A EP2732716B1 (en) 2012-11-14 2012-11-14 Shock absorber

Publications (1)

Publication Number Publication Date
DK2732716T3 true DK2732716T3 (en) 2015-03-30

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Application Number Title Priority Date Filing Date
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EP (1) EP2732716B1 (en)
DK (1) DK2732716T3 (en)
PL (1) PL2732716T3 (en)
WO (1) WO2014076126A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700089835A1 (en) 2017-08-03 2019-02-03 Base Prot S R L Active system with variable geometry with damping, energy dissipation and stabilization functions, which can be integrated into the soles of footwear

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1633324A (en) * 1925-03-18 1927-06-21 Leonard F Hartung Detachable cushion heel
US4342158A (en) * 1980-06-19 1982-08-03 Mcmahon Thomas A Biomechanically tuned shoe construction
BR8806281A (en) * 1988-11-25 1990-07-24 Sao Paulo Alpargatas IMPACT DAMPING SYSTEM APPLICABLE TO SPORTS SHOES
GB2425242A (en) * 2005-04-22 2006-10-25 Hi Tec Sports Ltd Shoe sole product and method
US20110072685A1 (en) * 2009-09-25 2011-03-31 Bdg, Incorporated Integral insole with multiple areas of different resiliency and method of making the insole

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PL2732716T3 (en) 2015-08-31
WO2014076126A1 (en) 2014-05-22
EP2732716A1 (en) 2014-05-21
EP2732716B1 (en) 2015-01-07

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