EP2790544B1 - Heel for a women's shoe with a high heel - Google Patents
Heel for a women's shoe with a high heel Download PDFInfo
- Publication number
- EP2790544B1 EP2790544B1 EP12820915.2A EP12820915A EP2790544B1 EP 2790544 B1 EP2790544 B1 EP 2790544B1 EP 12820915 A EP12820915 A EP 12820915A EP 2790544 B1 EP2790544 B1 EP 2790544B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- main structure
- heel
- upper portion
- reinforcement pin
- lower portion
- 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.)
- Active
Links
- 230000002787 reinforcement Effects 0.000 claims description 78
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 14
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000035882 stress Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000003190 viscoelastic substance Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
Images
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
-
- 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
- A43B21/02—Heels; Top-pieces or top-lifts characterised by the material
- A43B21/025—Metal
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B21/00—Heels; Top-pieces or top-lifts
- A43B21/02—Heels; Top-pieces or top-lifts characterised by the material
- A43B21/20—Heels; Top-pieces or top-lifts characterised by the material plastics
-
- 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
- A43B21/30—Heels with metal springs
Definitions
- the present invention relates to a heel for a women' s shoe with a high heel (i.e. a heel having a height greater than 5 cm).
- the elastic body may be constituted by a metal spring (for example as described in patent application FR2235655A1 ), or can be constituted by a "soft" element in plastic material (as for example described in patent application DE8316581U1 ).
- this known solution has several drawbacks as it requires a number of additional components, leading to significant complication at the level of the production process and is applicable only to a limited type of heels.
- the patent application FR1002135A1 describes a women's shoe provided with a heel wherein a plurality of horizontal slits which confer to the heel a certain vertical elasticity are formed; however, the solution described in this patent application does not allow to obtain an optimum walking comfort since the user clearly notices a "transverse instability" (i.e. perpendicular to the walking direction).
- the patent US 4,848,008 discloses a high heel made of two parts and which is unidirectionally compressible. The stiffness or compliance of the heel can be adjusted.
- the International Application WO 2011/000988 discloses a heel for a footwear, including an upper heel part and a bottom heel part that can be connected in a guided manner via a helical spring.
- the purpose of the present invention is to provide a heel for a women's shoe with all the features disclosed in claim 1.
- the present disclosure provides a heel for a women's shoe with a high heel; the heel comprising:
- first slits (8) there are at least two first slits (8) and/or at least two second slits (12); and the first slits (8) are vertically alternated with the second slits (12).
- the heel comprises a reinforcement pin (14), which is inserted inside a seat (15) which is centrally obtained in the main structure (3).
- the reinforcement pin (14) may be integral to, i.e. rigidly fitted, to a lower portion (16) of the main structure (3) arranged under the slits (8, 12) and may be mounted so as to slide with respect to an upper portion (17) of the main structure (3) arranged above the slits (8, 12).
- the seat (15) is internally lined with an antifriction bushing (19), which is externally integral to the main structure (3) and internally houses, in a sliding manner, the reinforcement pin (14).
- the reinforcement pin (14) presents an outer dimension that is smaller than the inner dimension of the seat (15) so as to avoid touching the wall of the seat (15).
- the reinforcement pin (14) comprises an upper portion (21) which is mechanically connected to an upper portion (17) of the main structure (3), a lower portion (22) which is integral to a lower portion (16) of the main structure (3), and elastic means which present a vertical elasticity and are coupled to the reinforcement pin (14) to connect with a vertical elasticity the upper portion (17) of the main structure (3) to the lower portion (16) of the main structure (3).
- the upper portion (17) of the main structure (3) is vertically slidable with respect to the upper portion (21) of the reinforcement pin (14); and the elastic means is constituted by at least one spring (24) which is interposed between the reinforcement pin (14) and an abutment wall (25) of the upper portion (17) of the main structure (3).
- the abutment wall (25) of the upper portion (17) of the main structure (3) is constituted by an assembly bushing (26) integral to the upper metal portion (17).
- the heel may also comprise a fixing plate (27) which is locked at the top of the reinforcement pin (14), rests against the assembly bushing (26), and prevents the reinforcement pin (14) from slipping off and rotating upon.
- the spring (24) in particular a disk spring, is compressed between the abutment wall (25) of the upper portion (17) of the main structure (3) and an annular shoulder (29) of the reinforcement pin (14).
- the seat (15) may be internally lined by at least an antifriction bushing (19) which may be externally integral to the main structure (3) and internally housing, in a sliding manner, the reinforcement pin (14).
- the main structure (3) preferably comprises a through hole (20), which extends from side to side through the main structure (3) along the longitudinal direction (9) and is arranged in a central position in correspondence of the slits (8, 12).
- the through hole (20) may present an oblong transverse section having the longer sides that are vertically oriented.
- the through hole (20) vertically divides the main structure (3) into two half-structures (3a, 3b) which are parallel to each other and face each other; each half-structure (3a, 3b) comprises at least one first slit (8) and at least one second slit (12); and in one half -structure (3a; 3b), the first slit (8) is vertically aligned with the second slit (12) of the other half -structure (3b; 3a) and the second slit (12) is vertically aligned with the first slit (8) the other half -structure (3b; 3a).
- each slit (8, 12) may end with a cylindrical surface that is arranged parallel to the longitudinal direction (9).
- the cylindrical surface may present a diameter that is larger than the vertical dimension of the slit.
- At least part of the slits (8, 12) may be filled with viscoelastic material.
- the present disclosure provides a heel (2) for a women's shoe (1) with a high heel; the heel (2) comprising:
- the upper portion (17) of the main structure (3) may be integral to the upper portion (21) of the reinforcement pin (14); and the reinforcement pin (14) may comprise an intermediate portion (23), which connects, without gaps, the lower portion (22) to the upper portion (21) and integrates elastic means in its inside.
- the intermediate portion (23) of the reinforcement pin (14) preferably comprises:
- each first slit (8) is vertically misaligned with respect to the second slits (12).
- first slits (8) there are at least two first slits (8) and/or at least two second slits (12); and the first slits (8) are vertically alternated with the second slits (12).
- Each slit (8, 12) may involve, along the transverse direction (10) more than half of the main structure (3).
- the reinforcement pin (14) may present an outer dimension smaller than the inner dimension of the seat (15) so as to avoid touching the wall of the seat (15).
- each slit (8, 12) may end with a cylindrical surface which is arranged parallel to the longitudinal direction (9).
- each slit (8, 12) the cylindrical surface may have a diameter that is larger than the vertical dimension of the slit.
- At least part of the slits (8, 12) may be filled with viscoelastic material.
- number 1 indicates as a whole a high heel women's shoe provided with a heel 2.
- the heel 2 has a height greater than 5 cm.
- the heel 2 comprises a main structure 3 with an oblong shape which extends along a vertical axis 4.
- the main structure 3 in correspondence with a lower base 5 is adapted to rest on the ground and in correspondence of an upper base 6 opposite to the lower base 5 is adapted to be fitted to a sole 7 of the shoe 1.
- the main heel structure 3 comprises two slits 8 which are horizontally-oriented (i.e. are perpendicular to the vertical axis 4) and are arranged vertically offset (i.e. at a certain vertical distance from one another).
- Each slit 8 extends from side to side through the main structure 3 along a longitudinal direction 9 (i.e. parallel to the walking direction), and is blind along a transverse direction 10 (i.e. perpendicular to the walking direction and therefore to the longitudinal direction 9) starting from an inner portion of the main structure 3 and ending in correspondence of a side 11 of the main structure 3.
- the main heel structure 3 comprises two slits 12 which are horizontally oriented (i.e.
- Each slit 12 extends from side to side through the main structure 3 along the longitudinal direction 9, and is blind along the transverse direction 10 perpendicular to the longitudinal direction 9 starting from an inner portion of the main structure 3 and ending in correspondence of a side 13 of the main structure 3 opposite to the side 11.
- the slits 8 are vertically alternated with the slits 12, i.e. a slit 8 is vertically followed and/or preceded by a slit 12.
- a slit 8 is vertically followed and/or preceded by a slit 12.
- two slits 8 to two slits 12 vertically alternated to one another are provided; according to different embodiments the number of slits 8 and/or 12 can be different (for example there may be only one slit 8 and only one slit 12, only one slit 8 and two slits 12 may be present, two slits 8 and three slits 12 may be present, three slits 8 and three slits 12 may be present).
- each slit 8 and 12 involve along the transverse direction 10 more than half of the main structure 3.
- the slits 8 and 12 reduce the vertical stiffness of the main structure 3 and therefore give the main structure 3 a vertical elasticity.
- the number and the size of the slits 8 and 12 must be chosen as a compromise between structural strength (which cannot be too little) and the deformation capacity (i.e. the elasticity).
- the thickness of the slits 8 and 12 is generally between 0.5 and 4 mm. Thanks to the presence of the slits 8 and 12, the main structure 3 of the heel 2 acts integrally as a compression spring so that if the vertical load exceeds a limit value, as can occur during walking, the "coils" of the "spring” are vertically compacted one upon the other preserving the main structure 3 from breaking.
- the pattern of the slits 8 and 12 is important in order to avoid (or at least restrict) the lateral deflection of the main structure 3 of the heel 2.
- an even total number of slits 8 and 12 i.e. a symmetrical pattern with respect to the longitudinal plane, i.e. parallel to the longitudinal direction 9, of the main structure 3 is preferred as it avoids the onset of unwanted spurious bending.
- the main structure 3 of the heel 2 can be made of many materials.
- the main structure 3 of the heel 2 can be made of plastic material (ABS or a thermoplastic technopolymer eventually loaded with glass fibers) that is normally injection molded already in the final, shape, or the main structure 3 of the heel 2 can be made of metallic material (typically aluminum for its lightness) that is normally solid machined by removal of material.
- the heel 2 comprises the reinforcement pin 14, which has a cylindrical shape, extending coaxially with the vertical axis 4, and is inserted inside a cylindrical seat 15 which is centrally obtained in the main structure 3.
- the reinforcement pin 14 is integral, i.e. rigidly fitted (e.g. glued), to a lower portion 16 of the main structure 3 arranged under the slits 8 and 12 and is slidably mounted with respect to an upper portion 17 of the main structure 3 arranged above the slits 8 and 12.
- the reinforcement pin 14 in a central portion 18 of the main structure 3 arranged in correspondence of the slits 8 and 12 (i.e. arranged between the lower portion 16 and the upper portion 17 of the main structure 3) the reinforcement pin 14 has an external dimension smaller than the inner dimension of the seat 15 so as to avoid touching the wall of the seat 15. In particular, in correspondence of the central portion 18 of the main structure 3 the reinforcement pin 14 locally presents a reduction of the outer diameter.
- the seat 15 in correspondence of the upper portion 17 of the main structure 3 the seat 15 is internally lined with an antifriction bushing 19 which externally is integral (e.g. by gluing) with the main structure 3 and internally houses in a sliding manner the reinforcement pin 14.
- the presence of the antifriction bushing 19 allows to ensure a better sliding of the reinforcement pin 14 with respect to the upper portion 17 of the main structure 3 even in the presence of temporary deformations of the upper portion 17 (that are possible as a result of mechanical stresses generated by walking).
- each slit 8 or 12 ends with a cylindrical surface that is arranged parallel to the longitudinal direction 9; said cylindrical surface allows to avoid the presence of sharp edges inside the slit 8 or 12 thereby improving the fatigue strength.
- the cylindrical surface has a diameter that is larger than the vertical dimension of the slit 8 or 12; and this solution is usable if the slits 8 and 12 are obtained by machining from solid with a tool which provides material removal.
- each slit 8 or 12 the cylindrical surface has a diameter equal to the vertical dimension of the slit 8 or 12; this solution is preferable if the slits 8 and 12 are directly obtained by way of an injection molding of the main structure 3 since it avoids the formation of undercuts.
- the main structure 3 comprises a through hole 20, which extends from side to side through the main structure 3 along the transverse direction 10 and is arranged in a central position in correspondence of the slits 8 and 12 (i.e. in correspondence of the central portion 18 of the main structure 3).
- the through hole 20 has an elongated cross section having the larger dimension oriented vertically (i.e. parallel to the vertical axis 4).
- each half-structure 3a and 3b comprises at least one slit 8 and at least one slit 12, and in one half-structure 3a/3b the slit 8 is vertically-aligned with the slit 12 of the other half-structure 3b/3a and the slit 12 is vertically aligned with the slit 8 of the other half-structure 3b/3a.
- the material used for the embodiment shown in Figures 14-16 is preferably a material of the metal type which allows to obtain the sufficient mechanical strength even in the presence of very reduced transverse thicknesses.
- At least part of the slits 8 and 12 can be filled with the viscoelastic material (or a material that exhibits an intermediate rheological behavior comprised between "purely viscous materials” and “elastic materials”) to give a damping effect favoring comfortable walking.
- each slit 8 or 12 ends with a cylindrical surface that is arranged parallel to the longitudinal direction 9, with. a diameter preferably greater than the vertical dimension of the slit 8 or 12.
- the slits 8 and 12 (which confer a vertical elasticity) are transferred by the main structure 3 of the heel 2 to the reinforcement pin 1.
- the reinforcement pin 14 comprises an upper portion 21 that is integral (for example by gluing or mechanical coupling) to the upper portion 17 of the main structure 3, a lower portion 22 that is integral (for example by gluing or mechanical coupling) to the lower portion 16 of the main structure 3, and an intermediate portion 23, that connects without gaps, the lower portion 22 to the upper portion 21 and has a vertical elasticity thanks to the presence of the slits 8 and 12.
- the intermediate portion 23 of the reinforcement pin 14 comprises the slits 8 and 12, which confer a vertical elasticity to the intermediate portion 23 and have the structural characteristics described above.
- the reinforcement pin 14 comprises the upper portion 21 which is mechanically connected (in particular integral to) the upper portion 17 of the main structure 3, the lower portion 22 which is integral to the lower portion 16 of the main structure 3, and elastic means which present a vertical elasticity and are coupled to the reinforcement pin 14 to connect with a vertical elasticity the upper portion 17 of the main structure 3 to the lower portion 16 of the main structure 3.
- the upper portion 17 of the main structure 3 is integral to the upper portion 21 of the reinforcement pin 14, and the reinforcement pin 14 comprises the intermediate portion 23 which connects without gaps, the lower portion 22 to the upper portion 21 and integrates in its inside the elastic means.
- Said elastic means are constituted by the slits 8 and 12 which are formed in the intermediate portion 23 of the reinforcement pin 14.
- the main structure 3 can be made of traditional plastic material (e.g. ABS), while the reinforcement pin 14 can be made of special steel.
- the damping effect is therefore obtained by structurally unloading the main structure 3 (or, alternatively, the reinforcement pin 14) by way of the slits 8 and 12 which reduce the vertical stiffness amplifying at the same time the possibilities of movement.
- the reinforcement pin 14 comprises the upper portion 21 which is mechanically connected (in particular in a sliding manner) to the upper portion 17 of the main structure 3, the lower portion 22 that is integral to the lower portion 16 of the main structure 3, and elastic means which present a vertical elasticity and are coupled to the reinforcement pin 14 to connect with a vertical elasticity - the upper portion 17 of main structure 3 to the lower portion 16 of the main structure 3.
- the upper portion 17 of the main structure 3 is vertically slidable with respect to the upper portion 21 of the reinforcement pin 14, and the elastic "means are constituted by at least one spring 24 (preferably, but not necessarily, a disk spring) which is interposed between the reinforcement pin 14 and an abutment wall 25 of the upper portion 17 of the main structure 3. It is important to note that by changing the number of springs 24 used, with an equally applied maximum force, the damping effect is modified by increasing or decreasing the vertical displacement of the heel 2.
- the abutment wall 25 of the upper portion 17 of the main structure 3 is constituted by a metal assembly bushing 26 which is integral to the upper portion 17 and is placed immediately below the insole assembly.
- a fixing plate 27 is normally provided which is locked at the top of the reinforcement pin 14, leaning against the assembly bushing 26, and prevents the reinforcement pin 14 from sliding off and rotating upon.
- the fixing plate 27 is locked at the top of the reinforcement pin 14 by means of a screw (not shown) which engages a threaded hole 28 formed through the upper portion 21 of the reinforcement pin 14.
- the spring 24 is compressed between the abutment wall 25 of the upper portion 17 of the main structure 3 and an annular shoulder 29 of the reinforcement pin 14; said annular shoulder 29 is obtained by way of tapering (thinning) of the reinforcement pin head 14.
- the seat 15 in correspondence to the upper portion 17 of the main structure 3 the seat 15 is internally lined by at least an antifriction bushing 19 which externally is integral to the main structure 3 and internally houses in a sliding manner the reinforcement pin 14.
- the lower portion 16 of the main structure 3 is separated from the upper portion 17 of the main structure 3 by way of a through cut 30 which completely separates the two portions 16 and 17 without any point of contact between the two portions 16 and 17 themselves (exactly as also happens in the embodiment shown in Figures 17-19 ).
- the reinforcement pin 14 has two diameter variations so as to ensure the necessary structural strength consistently with the final thinning of the heel 2.
- the lower portion 16 of the main structure 3 is formed in one piece (i.e. is monolithic) with the reinforcement pin 14; in other words, the lower portion 16 of the main structure 3 constitutes an extension of the lower portion 22 of the reinforcement pin 14. From another, and perfectly equivalent, point of view, the lower portion 16 of the main structure 3 is integrated in the lower portion 22 of the reinforcement pin 14.
- This variant allows to reduce the assembly costs, because it is no longer necessary to couple the lower portion 16 of the main structure 3 to the lower portion 22 of the reinforcement pin 14 making, at the same time, the lower portion 16 of the main structure 3 integral to the lower portion 22 of the reinforcement pin 14.
- the reinforcement pin 14 (integrating the lower portion 16 of the main structure 3) is made of high strength structural material (aluminum or steel), while the remaining part of the main structure 3 is made of non-structural plastic material (typically ABS).
- This feature the reinforcement pin 14 that integrates the lower portion 16 of the main structure 3) shown in Figure 24 can also be used in conjunction with the embodiment shown in Figures 17-19 .
- the embodiment shown in Figures 25-28 constitutes an evolution of the embodiment shown in Figures 8-9 and 11-13 ; in this embodiment shown in Figures 25-28 , the main structure 3 of the heel 2 presents the slits 8 and 12, while the reinforcement pin 14 is coupled to a series of disk springs 24 fully matching the conformation of the reinforcement pin 14 shown in Figures 20-24 .
- the main structure 3 presents three slits 8 and 12 vertically alternated to one another (in particular two slits 12 and one slit 8 vertically alternated between the two slits 8); said slits 8 and 12 have the structural characteristics described above and therefore for their detailed description reference is made to what has already been said above.
- the reinforcement pin 14 coupled to the series of disk springs 24 is completely analogous to the reinforcement pin 14 shown in Figures 20-24 and previously described and therefore for its detailed description reference is made to what has already been said above.
- the heel 2 described above has numerous advantages.
- the heel 2 described above has an optimal vertical elasticity that allows to reduce the negative stresses on the foot and on the leg of the user of the shoe 1 without penalizing, at the same time, walking which remains "natural" (i.e. the user's walking is not disturbed or otherwise adversely affected by the elasticity conferred by the vertical slits 8 and 12).
- This result is obtained thanks to the presence of slits 8 and 12 of different type and alternated to one another that allow to offer adequate resistance also to transverse loads.
- the heel 2 described above is applicable to any type of shoe 1 without significant constructive complications; for example, in Figure 29 a heel for a women's shoe with a high heel is shown which is provided with a heel 2 of the type described above and is completely different with respect to the shoe 1 shown in Figure 1 .
- the manufacturing process to obtain the heel 2 described above is particularly simple and quick and thus economical.
- the main structure 3 to adapt to the external conditions thanks to its intrinsic morphological constitutive characteristics and without the addition of additional components.
- the possible use of the reinforcement pin 14 does not particularly complicate the manufacturing process since the reinforcement pins are already normally present in many heels for women shoes with high heels.
- the advantages of the present invention are particularly evident in a high heel, i.e. when the heel 2 has a height greater than 5 cm.
- the present invention is advantageously applied to a heel 2 for a women's shoe 1 with a high heel, which heel 2 has a height greater than 5 cm.
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
- The present invention relates to a heel for a women' s shoe with a high heel (i.e. a heel having a height greater than 5 cm).
- To increase the comfort of a women' s shoe with a high heel (i.e. to reduce the mechanical stresses to which the foot is subjected during walking with a women's shoe with a high heel), it was proposed to make the heel vertically elastic (i.e. it was proposed to introduce a vertically directed elasticity into a heel).
- To make the heel vertically elastic it was proposed to divide the heel into an upper portion and a lower portion which can vertically move with respect to one another and to interpose between the two portions an elastic body that establishes a mechanical connection between the two portions themselves; the elastic body may be constituted by a metal spring (for example as described in patent application
FR2235655A1 DE8316581U1 ). However, this known solution has several drawbacks as it requires a number of additional components, leading to significant complication at the level of the production process and is applicable only to a limited type of heels. - The patent application
FR1002135A1 - The patent applications
CH212632A GB238134A FR1247874A1 - The patent
US 4,848,008 discloses a high heel made of two parts and which is unidirectionally compressible. The stiffness or compliance of the heel can be adjusted. - The International Application
WO 2011/000988 discloses a heel for a footwear, including an upper heel part and a bottom heel part that can be connected in a guided manner via a helical spring. - The purpose of the present invention is to provide a heel for a women's shoe with all the features disclosed in claim 1.
- In one aspect, the present disclosure provides a heel for a women's shoe with a high heel; the heel comprising:
- a main structure with an oblong shape, which, in correspondence to a lower base (5), is suited to rest on the ground and in correspondence to an upper base (6) that is opposite to the lower base (5), is suited to be fitted to a sole (7) of the shoe (1);
- at least a first slit (8) which is horizontally oriented, extends from side to side through the main structure (3) along a longitudinal direction (9), and is blind along a transverse direction (10) that is perpendicular to the longitudinal direction (9) thus originating from an inner portion of the main structure (3) and ending in correspondence to a first side (11) of the main structure (3); and
- at least a second slit (12) which is horizontally- oriented, extends from side to side through the main structure (3) along the longitudinal direction (9), and is blind along the transverse direction (10) that is perpendicular to the longitudinal direction (9), thus originating from an inner portion of the main structure (3) and ending in correspondence to a second side (13) of the main structure (3) that is opposite to the first side (11),
- Preferably, there are at least two first slits (8) and/or at least two second slits (12); and the first slits (8) are vertically alternated with the second slits (12).
- In one example, the heel comprises a reinforcement pin (14), which is inserted inside a seat (15) which is centrally obtained in the main structure (3). The reinforcement pin (14) may be integral to, i.e. rigidly fitted, to a lower portion (16) of the main structure (3) arranged under the slits (8, 12) and may be mounted so as to slide with respect to an upper portion (17) of the main structure (3) arranged above the slits (8, 12).
- Preferably, in correspondence to the upper portion (17) of the main structure (3), the seat (15) is internally lined with an antifriction bushing (19), which is externally integral to the main structure (3) and internally houses, in a sliding manner, the reinforcement pin (14).
- In one example, in a central portion (18) of the main structure (3) arranged in correspondence of the slits (8, 12), the reinforcement pin (14) presents an outer dimension that is smaller than the inner dimension of the seat (15) so as to avoid touching the wall of the seat (15).
- Preferably, the reinforcement pin (14) comprises an upper portion (21) which is mechanically connected to an upper portion (17) of the main structure (3), a lower portion (22) which is integral to a lower portion (16) of the main structure (3), and elastic means which present a vertical elasticity and are coupled to the reinforcement pin (14) to connect with a vertical elasticity the upper portion (17) of the main structure (3) to the lower portion (16) of the main structure (3).
- The upper portion (17) of the main structure (3) is vertically slidable with respect to the upper portion (21) of the reinforcement pin (14); and the elastic means is constituted by at least one spring (24) which is interposed between the reinforcement pin (14) and an abutment wall (25) of the upper portion (17) of the main structure (3).
- In a variant example, the abutment wall (25) of the upper portion (17) of the main structure (3) is constituted by an assembly bushing (26) integral to the upper metal portion (17).
- The heel may also comprise a fixing plate (27) which is locked at the top of the reinforcement pin (14), rests against the assembly bushing (26), and prevents the reinforcement pin (14) from slipping off and rotating upon.
- Preferably, the spring (24), in particular a disk spring, is compressed between the abutment wall (25) of the upper portion (17) of the main structure (3) and an annular shoulder (29) of the reinforcement pin (14).
- In correspondence to the upper portion (17) of the main structure (3), the seat (15) may be internally lined by at least an antifriction bushing (19) which may be externally integral to the main structure (3) and internally housing, in a sliding manner, the reinforcement pin (14).
- The main structure (3) preferably comprises a through hole (20), which extends from side to side through the main structure (3) along the longitudinal direction (9) and is arranged in a central position in correspondence of the slits (8, 12).
- The through hole (20) may present an oblong transverse section having the longer sides that are vertically oriented.
- In a particular example, the through hole (20) vertically divides the main structure (3) into two half-structures (3a, 3b) which are parallel to each other and face each other; each half-structure (3a, 3b) comprises at least one first slit (8) and at least one second slit (12); and in one half -structure (3a; 3b), the first slit (8) is vertically aligned with the second slit (12) of the other half -structure (3b; 3a) and the second slit (12) is vertically aligned with the first slit (8) the other half -structure (3b; 3a).
- Inside the main structure (3) each slit (8, 12) may end with a cylindrical surface that is arranged parallel to the longitudinal direction (9).
- In each slit (8, 12), the cylindrical surface may present a diameter that is larger than the vertical dimension of the slit.
- At least part of the slits (8, 12) may be filled with viscoelastic material.
- In one aspect, the present disclosure provides a heel (2) for a women's shoe (1) with a high heel; the heel (2) comprising:
- a main structure (3) with an oblong shape, which, in correspondence to a lower base (5), is suited to rest on the ground and, in correspondence to an upper base (6) that is opposite to the lower base (5), is suited to be fitted to a sole (7) of the shoe (1) and is divided into a lower portion (16) and an upper portion (17), which vertically slide with respect to one another; and
- a reinforcement pin (14) that is inserted inside a seat (15) centrally obtained in the main structure (3);
- The upper portion (17) of the main structure (3) may be integral to the upper portion (21) of the reinforcement pin (14); and the reinforcement pin (14) may comprise an intermediate portion (23), which connects, without gaps, the lower portion (22) to the upper portion (21) and integrates elastic means in its inside.
- The intermediate portion (23) of the reinforcement pin (14) preferably comprises:
- at least a first slit (8) which is horizontally oriented, extends from side to side through the main structure (3) along a longitudinal direction (9), and is blind along a transverse direction (10) that is perpendicular to the longitudinal direction (9) thus originating from an inner portion of the main structure (3) and ending in correspondence to a first side (11) of the main structure (3); and
- at least a second slit (12) which is horizontally oriented, extends from side to side through the main structure (3) along the longitudinal direction (9), and is blind along the transverse direction (10) that is perpendicular to the longitudinal direction (9), thus originating from an inner portion of the main structure (3) and ending in correspondence to a second side (13) of the main structure (3) that is opposite to the first side (11).
- Preferably, each first slit (8) is vertically misaligned with respect to the second slits (12).
- Preferably, there are at least two first slits (8) and/or at least two second slits (12); and the first slits (8) are vertically alternated with the second slits (12).
- Each slit (8, 12) may involve, along the transverse direction (10) more than half of the main structure (3).
- In a central portion (18) of the main structure (3) arranged in correspondence of the slits (8, 12), the reinforcement pin (14) may present an outer dimension smaller than the inner dimension of the seat (15) so as to avoid touching the wall of the seat (15).
- Inside the intermediate portion (23) of the reinforcement pin (14), each slit (8, 12) may end with a cylindrical surface which is arranged parallel to the longitudinal direction (9).
- In each slit (8, 12) the cylindrical surface may have a diameter that is larger than the vertical dimension of the slit.
- At least part of the slits (8, 12) may be filled with viscoelastic material.
- The present invention will now be described with reference to the accompanying drawings, which illustrate certain non-limiting embodiments, wherein:
-
Figure 1 schematically illustrates a women' s shoe with a high heel provided with a heel made in accordance with the present disclosure; -
Figures 2 and3 are two different perspective views of the heel ofFigure 1 ; -
Figures 4, 5 and 6 are respectively a right side view, a rear view, and a left side view of the heel ofFigure 1 ; -
Figure 7 is a view on an enlarged scale of a detail ofFigure 5 ; -
Figure 8 is a perspective view and vertical section of an alternative embodiment of the heel ofFigure 1 ; -
Figure 9 is a view on an enlarged scale of a detail ofFigure 8 made according to an alternative embodiment; -
Figure 10 is a perspective view of an alternative embodiment of the heel ofFigure 1 ; -
Figure 11 is a perspective view of a further embodiment of the heel ofFigure 1 ; -
Figure 12 is a rear view of the heel ofFigure 11 ; -
Figure 13 is a perspective and vertical section view of the heel ofFigure 12 ; -
Figures 14 and15 are two different perspective views of a further embodiment of the heel ofFigure 1 ; -
Figure 16 is a view on an enlarged scale of a detail ofFigure 15 ; -
Figure 17 is a perspective and vertical section view of a further embodiment of the heel ofFigure 1 ; -
Figure 18 is a perspective view of a reinforcement pin of the heel ofFigure 17 ; -
Figure 19 is a view on an enlarged scale of a detail ofFigure 17 ; -
Figure 20 is a perspective view of a further embodiment of the heel ofFigure 1 according to the present invention; -
Figure 21 is a rear view of the heel ofFigure 20 ; -
Figure 22 is a perspective and vertical section view of the heel ofFigure 20 ; -
Figure 23 is a view on an enlarged scale of a detail ofFigure 22 ; -
Figure 24 is a perspective and vertical section view of a variant of the heel ofFigure 20 ; -
Figure 25 is a perspective view of a further embodiment of the heel ofFigure 1 ; -
Figure 26 is a rear view of the heel ofFigure 25 ; -
Figure 27 is a perspective and vertical section view of the heel ofFigure 25 ; -
Figure 28 is a view on an enlarged scale of a detail ofFigure 27 ; and -
Figure 29 schematically illustrates a different women's shoe with a high heel provided with a heel obtained in accordance with the present invention. - In
Figure 1 , number 1 indicates as a whole a high heel women's shoe provided with aheel 2. Preferably, theheel 2 has a height greater than 5 cm. According to that shown inFigures 2 and3 , theheel 2 comprises amain structure 3 with an oblong shape which extends along avertical axis 4. Themain structure 3 in correspondence with alower base 5 is adapted to rest on the ground and in correspondence of anupper base 6 opposite to thelower base 5 is adapted to be fitted to a sole 7 of the shoe 1. - According to that shown in.
Figures 2-7 , themain heel structure 3 comprises twoslits 8 which are horizontally-oriented (i.e. are perpendicular to the vertical axis 4) and are arranged vertically offset (i.e. at a certain vertical distance from one another). Eachslit 8 extends from side to side through themain structure 3 along a longitudinal direction 9 (i.e. parallel to the walking direction), and is blind along a transverse direction 10 (i.e. perpendicular to the walking direction and therefore to the longitudinal direction 9) starting from an inner portion of themain structure 3 and ending in correspondence of aside 11 of themain structure 3. Furthermore, themain heel structure 3 comprises twoslits 12 which are horizontally oriented (i.e. are perpendicular to the vertical axis 4) and are arranged vertically offset (i.e. at a certain vertical distance from one another). Each slit 12 extends from side to side through themain structure 3 along thelongitudinal direction 9, and is blind along thetransverse direction 10 perpendicular to thelongitudinal direction 9 starting from an inner portion of themain structure 3 and ending in correspondence of aside 13 of themain structure 3 opposite to theside 11. - Preferably, the
slits 8 are vertically alternated with theslits 12, i.e. aslit 8 is vertically followed and/or preceded by aslit 12. In the variant shown inFigures 1-7 , twoslits 8 to twoslits 12 vertically alternated to one another are provided; according to different embodiments the number ofslits 8 and/or 12 can be different (for example there may be only oneslit 8 and only oneslit 12, only oneslit 8 and twoslits 12 may be present, twoslits 8 and threeslits 12 may be present, threeslits 8 and threeslits 12 may be present). - According to a preferred embodiment, each slit 8 and 12 involve along the
transverse direction 10 more than half of themain structure 3. - The
slits main structure 3 and therefore give themain structure 3 a vertical elasticity. Obviously the number and the size of theslits slits slits main structure 3 of theheel 2 acts integrally as a compression spring so that if the vertical load exceeds a limit value, as can occur during walking, the "coils" of the "spring" are vertically compacted one upon the other preserving themain structure 3 from breaking. The pattern of theslits main structure 3 of theheel 2. Generally, an even total number ofslits 8 and 12 (i.e. a symmetrical pattern with respect to the longitudinal plane, i.e. parallel to thelongitudinal direction 9, of the main structure 3) is preferred as it avoids the onset of unwanted spurious bending. - The
main structure 3 of theheel 2 can be made of many materials. By way of example, themain structure 3 of theheel 2 can be made of plastic material (ABS or a thermoplastic technopolymer eventually loaded with glass fibers) that is normally injection molded already in the final, shape, or themain structure 3 of theheel 2 can be made of metallic material (typically aluminum for its lightness) that is normally solid machined by removal of material. - Depending on the material used to obtain the
main structure 3 of theheel 2, to further increase the structural strength of themain structure 3 to transverse loads (i.e. directed along the transverse direction 10) it is possible to provide a reinforcement pin 14 (shown inFigure 8 ) that is made of a highly resistant material (for example steel) and is inserted inside themain structure 3 wherein it also fulfills the function of supporting the heel layer. Preferably, thereinforcement pin 14 is used when themain structure 3 of theheel 2 is made of low resistance plastic material. According to the embodiment shown inFigure 8 , theheel 2 comprises thereinforcement pin 14, which has a cylindrical shape, extending coaxially with thevertical axis 4, and is inserted inside acylindrical seat 15 which is centrally obtained in themain structure 3. According to another embodiment, thereinforcement pin 14 is integral, i.e. rigidly fitted (e.g. glued), to alower portion 16 of themain structure 3 arranged under theslits upper portion 17 of themain structure 3 arranged above theslits - Preferably, in a
central portion 18 of themain structure 3 arranged in correspondence of theslits 8 and 12 (i.e. arranged between thelower portion 16 and theupper portion 17 of the main structure 3) thereinforcement pin 14 has an external dimension smaller than the inner dimension of theseat 15 so as to avoid touching the wall of theseat 15. In particular, in correspondence of thecentral portion 18 of themain structure 3 thereinforcement pin 14 locally presents a reduction of the outer diameter. - According to the embodiment shown in
Figure 9 , in correspondence of theupper portion 17 of themain structure 3 theseat 15 is internally lined with anantifriction bushing 19 which externally is integral (e.g. by gluing) with themain structure 3 and internally houses in a sliding manner thereinforcement pin 14. The presence of theantifriction bushing 19 allows to ensure a better sliding of thereinforcement pin 14 with respect to theupper portion 17 of themain structure 3 even in the presence of temporary deformations of the upper portion 17 (that are possible as a result of mechanical stresses generated by walking). - According to the embodiment shown in
Figures 10 and12 , inside themain structure 3 eachslit longitudinal direction 9; said cylindrical surface allows to avoid the presence of sharp edges inside theslit Figure 10 , in eachslit slit slits Figure 12 , in eachslit slit slits main structure 3 since it avoids the formation of undercuts. - According to the embodiment shown in
Figures 11-13 , only oneslit 8 and only oneslit 12 are provided, and thereinforcement pin 14 is provided slidably coupled to anantifriction bushing 19 which externally is integral with themain structure 3 in correspondence to theupper portion 17 of themain structure 3. - According to the embodiment shown in
Figures 14-16 , themain structure 3 comprises a throughhole 20, which extends from side to side through themain structure 3 along thetransverse direction 10 and is arranged in a central position in correspondence of theslits 8 and 12 (i.e. in correspondence of thecentral portion 18 of the main structure 3). Preferably, the throughhole 20 has an elongated cross section having the larger dimension oriented vertically (i.e. parallel to the vertical axis 4). - The through
hole 20 vertically divides themain structure 3 into two half-structures columns structure slit 8 and at least one slit 12, and in one half-structure 3a/3b theslit 8 is vertically-aligned with theslit 12 of the other half-structure 3b/3a and theslit 12 is vertically aligned with theslit 8 of the other half-structure 3b/3a. - In the embodiment shown in
Figures 14-16 , it is possible to use' ah odd number ofslits slits structures main structure 3 as a whole an adequate symmetry with respect to a longitudinal plane (i.e. a plane parallel to the longitudinal direction 9). It is important to note that the longitudinal stresses (i.e. directed along the longitudinal axis 9) tend to open theslits structure 3a/3b but to close theslits structure 3b/3a, which by compacting, ensure an adequate mechanical seal; instead the transverse stresses (i.e. directed along the transverse direction 10) are supported by the vertical compaction of the coils of the half-structure - The material used for the embodiment shown in
Figures 14-16 is preferably a material of the metal type which allows to obtain the sufficient mechanical strength even in the presence of very reduced transverse thicknesses. - According to a possible embodiment, at least part of the
slits 8 and 12 (i.e. all theslits slits 8 and 12) can be filled with the viscoelastic material (or a material that exhibits an intermediate rheological behavior comprised between "purely viscous materials" and "elastic materials") to give a damping effect favoring comfortable walking. - According to a further embodiment each slit 8 or 12 ends with a cylindrical surface that is arranged parallel to the
longitudinal direction 9, with. a diameter preferably greater than the vertical dimension of theslit - In the embodiment shown in
Figures 17-19 , theslits 8 and 12 (which confer a vertical elasticity) are transferred by themain structure 3 of theheel 2 to the reinforcement pin 1. In this embodiment, thereinforcement pin 14 comprises anupper portion 21 that is integral (for example by gluing or mechanical coupling) to theupper portion 17 of themain structure 3, alower portion 22 that is integral (for example by gluing or mechanical coupling) to thelower portion 16 of themain structure 3, and anintermediate portion 23, that connects without gaps, thelower portion 22 to theupper portion 21 and has a vertical elasticity thanks to the presence of theslits intermediate portion 23 of thereinforcement pin 14 comprises theslits intermediate portion 23 and have the structural characteristics described above. - In essence, in the embodiment shown in
Figures 17-19 thereinforcement pin 14 comprises theupper portion 21 which is mechanically connected (in particular integral to) theupper portion 17 of themain structure 3, thelower portion 22 which is integral to thelower portion 16 of themain structure 3, and elastic means which present a vertical elasticity and are coupled to thereinforcement pin 14 to connect with a vertical elasticity theupper portion 17 of themain structure 3 to thelower portion 16 of themain structure 3. In this embodiment, theupper portion 17 of themain structure 3 is integral to theupper portion 21 of thereinforcement pin 14, and thereinforcement pin 14 comprises theintermediate portion 23 which connects without gaps, thelower portion 22 to theupper portion 21 and integrates in its inside the elastic means. Said elastic means are constituted by theslits intermediate portion 23 of thereinforcement pin 14. - When the
reinforcement pin 14 is used, themain structure 3 can be made of traditional plastic material (e.g. ABS), while thereinforcement pin 14 can be made of special steel. - In the
heel 2 so far described, in its various embodiments the damping effect is therefore obtained by structurally unloading the main structure 3 (or, alternatively, the reinforcement pin 14) by way of theslits - In alternative embodiments shown in
Figures 20-24 , thereinforcement pin 14 comprises theupper portion 21 which is mechanically connected (in particular in a sliding manner) to theupper portion 17 of themain structure 3, thelower portion 22 that is integral to thelower portion 16 of themain structure 3, and elastic means which present a vertical elasticity and are coupled to thereinforcement pin 14 to connect with a vertical elasticity - theupper portion 17 ofmain structure 3 to thelower portion 16 of themain structure 3. In these embodiments, theupper portion 17 of themain structure 3 is vertically slidable with respect to theupper portion 21 of thereinforcement pin 14, and the elastic "means are constituted by at least one spring 24 (preferably, but not necessarily, a disk spring) which is interposed between thereinforcement pin 14 and anabutment wall 25 of theupper portion 17 of themain structure 3. It is important to note that by changing the number ofsprings 24 used, with an equally applied maximum force, the damping effect is modified by increasing or decreasing the vertical displacement of theheel 2. - Preferably, the
abutment wall 25 of theupper portion 17 of themain structure 3 is constituted by ametal assembly bushing 26 which is integral to theupper portion 17 and is placed immediately below the insole assembly. A fixingplate 27 is normally provided which is locked at the top of thereinforcement pin 14, leaning against theassembly bushing 26, and prevents thereinforcement pin 14 from sliding off and rotating upon. For example, the fixingplate 27 is locked at the top of thereinforcement pin 14 by means of a screw (not shown) which engages a threadedhole 28 formed through theupper portion 21 of thereinforcement pin 14. - According to a preferred embodiment, the
spring 24 is compressed between theabutment wall 25 of theupper portion 17 of themain structure 3 and anannular shoulder 29 of thereinforcement pin 14; saidannular shoulder 29 is obtained by way of tapering (thinning) of thereinforcement pin head 14. - According to a preferred embodiment, in correspondence to the
upper portion 17 of themain structure 3 theseat 15 is internally lined by at least anantifriction bushing 19 which externally is integral to themain structure 3 and internally houses in a sliding manner thereinforcement pin 14. - In the embodiment shown in
Figures 20-24 , thelower portion 16 of themain structure 3 is separated from theupper portion 17 of themain structure 3 by way of a throughcut 30 which completely separates the twoportions portions Figures 17-19 ). - In the embodiments shown in
Figures 20-23 , thereinforcement pin 14 has two diameter variations so as to ensure the necessary structural strength consistently with the final thinning of theheel 2. - In the variant shown in
Figure 24 , thelower portion 16 of themain structure 3 is formed in one piece (i.e. is monolithic) with thereinforcement pin 14; in other words, thelower portion 16 of themain structure 3 constitutes an extension of thelower portion 22 of thereinforcement pin 14. From another, and perfectly equivalent, point of view, thelower portion 16 of themain structure 3 is integrated in thelower portion 22 of thereinforcement pin 14. This variant allows to reduce the assembly costs, because it is no longer necessary to couple thelower portion 16 of themain structure 3 to thelower portion 22 of thereinforcement pin 14 making, at the same time, thelower portion 16 of themain structure 3 integral to thelower portion 22 of thereinforcement pin 14. Obviously, the reinforcement pin 14 (integrating thelower portion 16 of the main structure 3) is made of high strength structural material (aluminum or steel), while the remaining part of themain structure 3 is made of non-structural plastic material (typically ABS). This feature (thereinforcement pin 14 that integrates thelower portion 16 of the main structure 3) shown inFigure 24 can also be used in conjunction with the embodiment shown inFigures 17-19 . - The embodiment shown in
Figures 25-28 constitutes an evolution of the embodiment shown inFigures 8-9 and11-13 ; in this embodiment shown inFigures 25-28 , themain structure 3 of theheel 2 presents theslits reinforcement pin 14 is coupled to a series of disk springs 24 fully matching the conformation of thereinforcement pin 14 shown inFigures 20-24 . Themain structure 3 presents threeslits slits 12 and oneslit 8 vertically alternated between the two slits 8); saidslits reinforcement pin 14 coupled to the series of disk springs 24 is completely analogous to thereinforcement pin 14 shown inFigures 20-24 and previously described and therefore for its detailed description reference is made to what has already been said above. - The
heel 2 described above has numerous advantages. - In the first place, the
heel 2 described above has an optimal vertical elasticity that allows to reduce the negative stresses on the foot and on the leg of the user of the shoe 1 without penalizing, at the same time, walking which remains "natural" (i.e. the user's walking is not disturbed or otherwise adversely affected by the elasticity conferred by thevertical slits 8 and 12). This result is obtained thanks to the presence ofslits - In addition, the
heel 2 described above is applicable to any type of shoe 1 without significant constructive complications; for example, inFigure 29 a heel for a women's shoe with a high heel is shown which is provided with aheel 2 of the type described above and is completely different with respect to the shoe 1 shown inFigure 1 . - Finally, the manufacturing process to obtain the
heel 2 described above is particularly simple and quick and thus economical. In particular, in theheel 2 described above is themain structure 3 to adapt to the external conditions thanks to its intrinsic morphological constitutive characteristics and without the addition of additional components. The possible use of thereinforcement pin 14 does not particularly complicate the manufacturing process since the reinforcement pins are already normally present in many heels for women shoes with high heels. - The advantages of the present invention are particularly evident in a high heel, i.e. when the
heel 2 has a height greater than 5 cm. Thus, the present invention is advantageously applied to aheel 2 for a women's shoe 1 with a high heel, whichheel 2 has a height greater than 5 cm.
Claims (9)
- The heel (2) for a women's shoe (1) with a high heel; the heel (2) comprises:a main structure (3) with an oblong shape, which, in correspondence to a lower base (5), is suited to rest on the ground and, in correspondence to an upper base (6) that is opposite to the lower base (5), is suited to be fitted to a sole (7) of the shoe (1) and is divided into a lower portion (16) and an upper portion (17), which vertically slide with respect to one another; anda reinforcement pin (14) that is inserted inside a seat (15) centrally obtained in the main structure (3),wherein the reinforcement pin (14) comprises: an upper portion (21), which is mechanically connected to the upper portion (17) of the main structure (3); a lower portion (22), which is integral to the lower portion (16) of the main structure (3); and elastic means which present a vertical elasticity and are coupled to the reinforcement pin (14) to connect with a vertical elasticity the upper portion (17) of the main structure (3) to the lower portion (16) of the main structure (3),wherein the upper portion (17) of the main structure (3) is vertically slidable with respect to the upper portion (21) of the reinforcement pin (14), andwherein the elastic means are constituted by at least one disk spring (24) which is interposed between the reinforcement pin (14) and an abutment wall (25) of the upper portion (17) of the main structure (3).
- The heel (2) according to claim 1, wherein the abutment wall (25) of the upper portion (17) of the main structure (3) is constituted by a metal assembly bushing (26) integral to the upper portion (17).
- The heel (2) according to claim 2 and comprising a fixing plate (27) that is locked at the top of the reinforcement pin (14), leans against the assembly bushing (26), and prevents the reinforcement pin (14) from slipping off and rotating upon.
- The heel (2) according to claim 3, wherein the fixing plate (27) is locked at the top of the reinforcement pin (14) by way of a screw which engages in a threaded hole (28) formed through the upper portion (21) of the reinforcement pin (14).
- The heel (2) according to any of the preceding claims, wherein the spring (24) is compressed between the abutment wall (25) of the upper portion (17) of the main structure (3) and an annular shoulder (29) of the reinforcement pin (14), the abutment wall (25) and the annular shoulder (29) being placed superiorly and inferiorly to the at least one disk spring (24), respectively.
- The heel (2) according to any of the preceding claims, wherein, in correspondence to the upper portion (17) of the main structure (3), the seat (15) is internally lined by at least one antifriction bushing (19) which is externally integral to the main structure (3) and internally houses in a sliding manner the reinforcement pin (14).
- The heel (2) according to any of the preceding claims, wherein the lower portion (16) of the main structure (3) is separated from the upper portion (17) of the main structure (3) by way of a through cut (30) that completely separates the two portions (16, 17) without any point of contact between the two portions (16, 17) themselves.
- The heel (2) according to any of the preceding claims, wherein the lower portion (22) of the reinforcement pin (14) is obtained in one piece with the lower portion (16) of the main structure (3) and therefore integrates the lower portion (16) of the main structure (3).
- The heel (2) according to any of the preceding claims, having a height greater than 5 cm.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000712A ITBO20110712A1 (en) | 2011-12-14 | 2011-12-14 | HEEL FOR FEMALE SHOE HIGH HEEL |
PCT/IB2012/057355 WO2013088417A2 (en) | 2011-12-14 | 2012-12-14 | Heel for a women's shoe with a high heel |
Publications (2)
Publication Number | Publication Date |
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EP2790544A2 EP2790544A2 (en) | 2014-10-22 |
EP2790544B1 true EP2790544B1 (en) | 2019-01-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12820915.2A Active EP2790544B1 (en) | 2011-12-14 | 2012-12-14 | Heel for a women's shoe with a high heel |
Country Status (8)
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US (1) | US20140325879A1 (en) |
EP (1) | EP2790544B1 (en) |
CN (1) | CN104302200B (en) |
CA (1) | CA2859317A1 (en) |
IN (1) | IN2014CN04435A (en) |
IT (1) | ITBO20110712A1 (en) |
RU (1) | RU2629856C2 (en) |
WO (1) | WO2013088417A2 (en) |
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---|---|---|---|---|
USD756086S1 (en) * | 2013-09-18 | 2016-05-17 | Ecco Sko A/S | Sole |
USD730030S1 (en) * | 2013-10-09 | 2015-05-26 | Tod's S.P.A. | Shoe |
WO2017040870A1 (en) * | 2015-09-01 | 2017-03-09 | Truchsess Vincent | Footwear |
US20170119099A1 (en) * | 2015-11-02 | 2017-05-04 | Beverly FERGUSON | Shoe Heel With Shock Absorbent Feature |
US10506847B2 (en) | 2017-06-23 | 2019-12-17 | Centripetal Entertainment LLC | Reinforced shoe heel and methods for manufacturing shoes incorporating the same |
USD883638S1 (en) | 2017-12-29 | 2020-05-12 | Centripetal LLC | Shoe heel |
USD888382S1 (en) * | 2018-05-11 | 2020-06-30 | iRi in NY Inc. | Shoe outsole |
Citations (1)
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US20060213082A1 (en) * | 2005-03-23 | 2006-09-28 | Meschan David F | Athletic shoe with removable resilient element |
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GB238134A (en) * | 1925-01-23 | 1925-08-13 | Virgoe Buckland | Improvements in or relating to heels for boots and shoes |
US2159943A (en) * | 1938-08-06 | 1939-05-23 | Palley John | Shoe heel |
CH212632A (en) * | 1939-11-07 | 1940-12-15 | Loew Hans | Grooved shoes. |
FR1002135A (en) * | 1946-08-02 | 1952-03-03 | Sandal | |
FR1247874A (en) * | 1960-02-13 | 1960-10-24 | Methods of manufacturing shoe heels to imitate their constitution of several superimposed layers of leather, and heels thus produced | |
US3144722A (en) * | 1963-03-20 | 1964-08-18 | Cortina Anthony | Cushion heel construction for women's shoes |
US3266177A (en) * | 1965-07-12 | 1966-08-16 | Milford R Holden | Adjustable heel for shoes |
US3514879A (en) * | 1967-11-06 | 1970-06-02 | Michele Frattallone | Heel having interchangeable support portion |
US3478447A (en) * | 1968-05-27 | 1969-11-18 | J Foster Gillead | Shoe heel with rotatable lift |
US3481053A (en) * | 1968-11-04 | 1969-12-02 | Amedio P De Felice | Plastic shoe heel |
DE2431420A1 (en) * | 1973-07-03 | 1975-01-30 | Mohamed Rashied Dr Ziadeh | HEEL FOR IN-SHOE OR THE SAME |
US4400893A (en) * | 1981-09-09 | 1983-08-30 | Fratelli Musci | Shoe with removably-mounted heel |
DE8316581U1 (en) | 1983-06-07 | 1983-09-29 | Damen, Karl Joseph, Dipl.-Ing., 6800 Mannheim | Elastic heel for cushioning |
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US20080034620A1 (en) * | 2006-08-10 | 2008-02-14 | Gallegos Alvaro Z | Replaceable heel system |
US8132341B1 (en) * | 2008-10-29 | 2012-03-13 | Megan Doreen Laramore | Detachable heel system |
ES1070932Y (en) * | 2009-07-01 | 2010-06-04 | Gedeca Desarrollo Del Calzado | HEEL HEEL |
-
2011
- 2011-12-14 IT IT000712A patent/ITBO20110712A1/en unknown
-
2012
- 2012-12-14 CA CA2859317A patent/CA2859317A1/en not_active Abandoned
- 2012-12-14 CN CN201280062260.0A patent/CN104302200B/en not_active Expired - Fee Related
- 2012-12-14 EP EP12820915.2A patent/EP2790544B1/en active Active
- 2012-12-14 RU RU2014128605A patent/RU2629856C2/en not_active IP Right Cessation
- 2012-12-14 WO PCT/IB2012/057355 patent/WO2013088417A2/en active Search and Examination
- 2012-12-14 US US14/365,443 patent/US20140325879A1/en not_active Abandoned
-
2014
- 2014-06-16 IN IN4435CHN2014 patent/IN2014CN04435A/en unknown
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US20060213082A1 (en) * | 2005-03-23 | 2006-09-28 | Meschan David F | Athletic shoe with removable resilient element |
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EP2790544A2 (en) | 2014-10-22 |
CN104302200A (en) | 2015-01-21 |
CN104302200B (en) | 2017-06-06 |
RU2629856C2 (en) | 2017-09-04 |
ITBO20110712A1 (en) | 2013-06-15 |
WO2013088417A3 (en) | 2014-02-06 |
RU2014128605A (en) | 2016-02-10 |
WO2013088417A2 (en) | 2013-06-20 |
CA2859317A1 (en) | 2013-06-20 |
US20140325879A1 (en) | 2014-11-06 |
IN2014CN04435A (en) | 2015-09-04 |
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