GB2048761A - High-heeled soles - Google Patents
High-heeled soles Download PDFInfo
- Publication number
- GB2048761A GB2048761A GB8014121A GB8014121A GB2048761A GB 2048761 A GB2048761 A GB 2048761A GB 8014121 A GB8014121 A GB 8014121A GB 8014121 A GB8014121 A GB 8014121A GB 2048761 A GB2048761 A GB 2048761A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heel
- heeled
- soles
- sheath
- thermoplastics
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 45
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 19
- 229920001169 thermoplastic Polymers 0.000 claims description 19
- 239000004416 thermosoftening plastic Substances 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 238000004873 anchoring Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 241000220150 Eucryphia lucida Species 0.000 abstract 1
- 238000007688 edging Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/124—Heels
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/37—Sole and heel units
Abstract
In the injection moulding of one- piece high heeled soles, particularly for women's shoes, a finishing layer (1), e.g. of hide, imitation leather wood or plastics, is positioned in the mould and is provided with an inner sheath (2) or supporting layer to improve the anchorage to the underlying plastics material. Alternatively or additionally the edges of the finishing layer at the forward part of the heel may be provided with inturned ribs. <IMAGE>
Description
SPECIFICATION
High-heeled soles
The present invention relates to methods for making high-heeled soles for women's shoes, and to the high-heeled soles obtained thereby.
It is known to produce single piece high-heeled soles by injection moulding thermo-plastics materials in a mould formed by several complementary portions defining therebetween the heel and sole cavities.
This method is effective to provide a single piece high-heeled sole, by a single operation, in which both the sole and a heel rigid therewith are formed.
For making a high heeled sole, polyvinylchloride, ABS resins, polystyrene, polyethylene, poiypropylene, polyesters and like materials may be used.
It is also known, for reinforcing the high-heeled sole, to incorporate, prior to the injection of the thermoplastics material, a reinforcing core in the heel and a stiffening element in the sole, extending from the heel top to the overall front portion of the sole itself. Such a reinforcing core and stiffening member may be made of wood, metal (such as aluminium and light alloys), premoulded plastics material, and the like.
It is moreover known to coat, directly in the making step, the outside surface of the heel by means of hide, imitation leather, wood, plastics laminate and the like, thereby providing a completely finished high-heeled sole, which does not need further finishing operations. To this end, in the mould portion provided for forming the heel, there is inserted, prior to the moulding operation,'a coating material portion effective to cover the heel laterally, rearwardly and optionally forwardly.
Then, thermoplastics material is then injected into the mould through a hole accurately located above the heel, in order to press the coating sheets against the inner surface of the mould, in such a way as to cause said coating sheets to adhere to the mould inner walls, thereby preventing said thermoplastics material from exiting therefrom.
The high-heeled sole, as obtained according to the hereinabove described methods, has well established economic and aesthetic advantages, and has found a large acceptance in the market.
However a drawback of these known highheeled soles, as produced by the hereinabove described methods, is that, in said soles, the side and rear coating of the heel has a tendency to become detached after a long period of use of the shoe, especially at the side edges, near to the corners.
The object of the present invention is to obviate the hereinabove stated drawback.
More specifically, the object of the present invention is to provide such a method effective to improve the adhesion of the sheet material forming the outside, side and rear heel coating, to the thermoplastics material forming said heel.
It has been found, and this forms the subjectmatter of the present invention, that in the method
for making single piece high-heeled soles, for
women's shoes, by injection moulding
thermoplastics material in a mould formed by
complementary portions defining therebetween
said heel and sole cavities, wherein into said heel
cavity, prior to the injection of the said
thermoplastics material, a sheet material is
inserted for laterally, rearwardly and optionally -forwardly covering the heel, an improved adhesion
of said sheet material to the thermoplastics
material forming the heel is obtained by providing
said coating sheet material with suitable
anchoring elements effective to anchor said sheet
material to said heel-forming thermoplastics
material.
Said anchoring elements may consist of a
sheath (or supporting element) of a material
effective to adhere and fix to the heel-forming
thermoplastics material, and coating the overall
inside surface of said sheet material, provided for
contacting the heel. Alternatively, they may be formed by an edging (or strip) element projecting
from the inner surface and along each of the side
vertical edges of said coating sheet material, and
being embedded in said heel-forming
thermoplastics material, during the making
thereof.Alternatively, said sheet material may be
simultaneously provided with a sheath (or
supporting) element on the surface thereof
provided for contacting the heel, and with an
edging element (or strip) projecting from the inner
surface, along each of the side vertical edges
thereof.
Said projecting edging or strip element can be
formed by the sheath or supporting element
covering the sheet material. Said edging element
may uninterruptedly extend all along the length of
said sheet material side vertical edges, or it may
be discontinuous, that is formed by a plurality of
spaced projecting portions.
As said sheath or support element, for
supporting said coating sheath material, cloth,
non-woven fabric, felt, a thermoplastics material
sheet and the like may be used.
For making the single piece high-heeled sole
any known method may be used, provided that the
coating sheet material has an anchoring element
according to the invention. More specifically,
particularly effective are the making methods
described in the Patent Applications No.
33257/78 (Publication No. 2008925) and No.
39080/78 (Publication No. 2019766).
In order to better understand the functional and
structural characteristics of the invention the heel
coating sheet material used in the improved
method according to the invention will be
hereinafter described with reference to the figures
of the accompanying drawing illustrating some
exemplary and not limitative preferred
embodiments of said sheet material, and wherein::
Figure 1 illustrates a perspective side view of
an exemplary embodiment of the high-heeled sole
as obtained by the improved method according to
the present invention;
Figure 2 illustrates a side perspective view of the heel side and rear coating element, as provided with an inner sheath;
Figure 3 is a perspective view as taken from the inside-ofthe heel side and rear coating element, and provided with projectin-g-edges, located at the side vertical edges.
Referring specifically to the figures, in order to renderthe heel side and rear coating element 1 more adherent-to the heel-forming thermoplastics material, particularly at the vertical edges 1 ' and upper corners 1 ir thereof, it is- provided, on theinside surface, with a sheath 2, as is shown: in
Figure 2, or with projecting edges 3 at each side vertical edge 1', as is shown- in- Figure 3, or with a sheath 2 provided with edges or other projecting: elements 3.
Said projecting edges 3 are embedded in the heel-forming thermoplastics material I during moulding of the heei.
The sheath 2 may be for instance of cloth, textile fabric, non-woven fabric, felt or a suitable sheet thermoplastic material.
From the above description and the observation of the figures of the accompanying: drawling, are self evident the carrying out facility of the instant method, and the great practical, economical and functional advantages characterizing the high heeled sole, particularly for women's shoes, contained by said method.
Obviously, in practising the improved method for making high heeled soles for women's shoes, according to the present invention; various variations and modifications may be made falling within the invention's inventive concept and without departing from the scope thereof.
Claims (8)
1. A method of making high-heeled soles, particularly for women's shoes, in a single piece by injection-moulding thermoplastics materials in a mould formed by several complementary portions definingtherebetween a heel and sole cavity, in which, in said heel cavity, prior to the injection, a sheet material is. inserted for laterally, rearwardly and possibly forwardly covering the said heel, in which said coating sheet material is provided with anchoring elements effective to anchor said coating sheet materiaFto the heel-forming thermoplastics material.
2. A method claimed in claim 1, characterised in that said anchoring elements comprise a sheath or supporting member made of such a material effective to adhere and fix to the heel-forming thermoplastics material, and coat all the inner surface of said sheet material provided for contacting the heel.
3. A method as claimed in claim 2, in which said sheath or supporting member is made from a material selected from the group consisting of cloth, textile fabric, non-woven fabric, felt and sheet thermoplastics material.
4. A method as claimed in claim 1,2 or 3, in which said ancitoring-elements comprise an edge of strip projecting from the inner surface and along each of the side vertical edges of the heel-coating sheet material.
5. A method as claimed in claim 4 in which said edge or strip is formed by a plurality of spaced projecting- portions.
6. A method as claimed in claim 4 or 5, as dependent on claim 2 or 3, in which each said edge or projecting strip is made of the same material forming said sheath or supporting element
7. A method of making high-heeled soles substantially as hereinbefore described with reference to the accompanying drawings.
8. High-heeled soles, particularly for women's shoes, made of a thermoplastics material and having a coated heel, as obtained by a method according to any of the preceding claims.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT22452/79A IT1166784B (en) | 1979-05-08 | 1979-05-08 | PERFECTED SOLE FOR FEMALE SHOES WITH HIGH HEEL, AND RELATIVE MANUFACTURING METHOD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2048761A true GB2048761A (en) | 1980-12-17 |
Family
ID=11196487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8014121A Withdrawn GB2048761A (en) | 1979-05-08 | 1980-04-29 | High-heeled soles |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3015819A1 (en) |
| FR (1) | FR2455864A1 (en) |
| GB (1) | GB2048761A (en) |
| IT (1) | IT1166784B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2711489A1 (en) * | 1993-10-27 | 1995-05-05 | Meca Teno | Moulded shoe sole and method for manufacturing it |
| ITTV20080130A1 (en) * | 2008-10-17 | 2010-04-18 | Calzaturificio Zamberlan S R L | METHOD OF FIXING DECORATIVE AND SIMILAR ELEMENTS MADE IN A DECORATION MATERIAL ON PRINTED PIECES MADE OF PLASTIC MATERIALS, PARTICULARLY FOR THE CONSTRUCTION OF FOOTWEAR SOLES |
| ITMC20110057A1 (en) * | 2011-10-24 | 2013-04-25 | Tammaro Arciprete | PROCEDURE FOR SURFACE FINISHING OF SOLES FOR FOOTWEAR OBTAINED BY MOLDING. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH513706A (en) * | 1968-07-12 | 1971-10-15 | Giannini Michele | Process to obtain pieces in printed material partially or totally coated with other material |
| FR2036513A5 (en) * | 1969-03-21 | 1970-12-24 | Nicoul Ets | Mould for composite heels for shoes |
| DE2122564A1 (en) * | 1971-05-07 | 1972-11-09 | Continental Gummi-Werke Ag, 3000 Hannover | Process, intermediate product and mold for manufacturing a long sole for footwear |
| IT1023986B (en) * | 1974-09-25 | 1978-05-30 | Tranceria V P B | MANUFACTURING SYSTEM OF SOLES OF VERO CUCIO AND P.V.C. FOR FOOTWEAR OF ANY KIND IN WHICH THE SOLE OF THE CONTOUR OF ITS ANTI-FLOWER PART IS FREE OF ANY P.V.C. FOR ALL ITS PERIME TRO AND THE HEEL OF THE SAME SOLE AND EXTERNALLY COVERED BY A BAND COMPOSED OF VARIOUS SEWING STRIPES |
-
1979
- 1979-05-08 IT IT22452/79A patent/IT1166784B/en active
-
1980
- 1980-04-22 DE DE19803015819 patent/DE3015819A1/en not_active Withdrawn
- 1980-04-29 GB GB8014121A patent/GB2048761A/en not_active Withdrawn
- 1980-05-05 FR FR8010027A patent/FR2455864A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2711489A1 (en) * | 1993-10-27 | 1995-05-05 | Meca Teno | Moulded shoe sole and method for manufacturing it |
| ITTV20080130A1 (en) * | 2008-10-17 | 2010-04-18 | Calzaturificio Zamberlan S R L | METHOD OF FIXING DECORATIVE AND SIMILAR ELEMENTS MADE IN A DECORATION MATERIAL ON PRINTED PIECES MADE OF PLASTIC MATERIALS, PARTICULARLY FOR THE CONSTRUCTION OF FOOTWEAR SOLES |
| ITMC20110057A1 (en) * | 2011-10-24 | 2013-04-25 | Tammaro Arciprete | PROCEDURE FOR SURFACE FINISHING OF SOLES FOR FOOTWEAR OBTAINED BY MOLDING. |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2455864A1 (en) | 1980-12-05 |
| DE3015819A1 (en) | 1980-11-20 |
| IT1166784B (en) | 1987-05-06 |
| IT7922452A0 (en) | 1979-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |