GB2255308A - Method and apparatus for moulding soles onto shoe uppers - Google Patents
Method and apparatus for moulding soles onto shoe uppers Download PDFInfo
- Publication number
- GB2255308A GB2255308A GB9208470A GB9208470A GB2255308A GB 2255308 A GB2255308 A GB 2255308A GB 9208470 A GB9208470 A GB 9208470A GB 9208470 A GB9208470 A GB 9208470A GB 2255308 A GB2255308 A GB 2255308A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sole
- contour plate
- contour
- mould
- die
- 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- Withdrawn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
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
- B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
- B29D35/08—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts
- B29D35/081—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts by injection moulding
- B29D35/082—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts by injection moulding injecting first the outer sole part
-
- 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
- B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
- B29D35/08—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts
- B29D35/081—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts by injection moulding
- B29D35/084—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts by injection moulding using exchangeable mould elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
12553 3i 1 METHOD AND APPARATUS FOR MOULDING SOLES ONTO SHOE UPPERS The
invention relates to a method and apparatus for moulding soles onto shoe uppers, the soles having a bottom sole, an upper sole and an inner sole connecting the bottom sole to the upper sole.
As used herein, the term 'shoe uppers, is to be understood to include prefabricated shoe uppers of leather, textile material, elastomer and thermoplastic materials, as well as shoe uppers which are manufactured before the moulding and moulding on of shoe soles in a tool designated as a shoe mould and onto which the soles are then moulded. Furthermore, the shoe uppers may be of a thermoplastics material and which are injection moulded for example either from plasticized granulated polyethylene, polyvinyl chloride, etc. or are manufactured from mixtures of isocyanate and polyol which, when reaction is complete, give polyurethane.
The term shoe uppers, includes conventional shoe uppers for laced shoes, boots and also the shoe uppers of light-weight boots, sports shoes, football boots, boots in general and furthermore work shoes and work boots.
As used herein the term 'soles' is to be understood to include soles of a thermoplastics material such as PVC or granulated plasticized polyurethane, and furthermore soles which are manufactured from mixtures of isocyanate and polyol which, when reaction is complete, give polyurethane.
In the simplest case, shoes, boots etc. have a moulded-on sole of only one material, that is to say a bottom sole of abrasion-resistant material.
In general, abrasion-resistant material has the 2 disadvantage that it has virtually no s.-.ock absorbent properties, so that when walking or running impacts or jolting produced by the unevenness of the terrain are transmitted to the spinal column virtually without shock absorption. For this reason, such single-layer soles are preferably provided for work shoes and work boots.
In order to achieve shock absorption for the shoe soles, it is known to provide an inner sole between the bottom sole and the shoe upper. Although the inner sole has a low abrasion resistance, it has high elasticity and shock absorption properties and can thus also be designated a comfort sole.
These inner soles known from soles having a two-layer construction are hereinafter called upper soles, since they provide the connection between the bottom sole and the upper. This upper sole can below also be of nonabsorbent material.
Two-layer soles of rubber are known (DE-AS 20 48 596) which may be moulded onto shoe uppers in such a way that in a first process step an upper or comfort sole of an absorbent rubber composition is moulded onto a shoe upper and in a second process step an abrasion-resistant bottom sole, which however has low or virtually no absorbent action and is of abrasion-resistant material, is injection moulded onto this comfort or upper sole.
It is furthermore known (DE-OS 1 485 987) to mould onto a shoe upper, also in a first process step, first a comfort or upper sole and then in a second process step to incorporate into a recess formed during moulding on of the upper or comfort sole and surrounded in the manner of a frame by the material of the comfort or upper sole the material for the bottom sole. If materials of different colours are used, the running surface has a framed-in 1 3 region of the colour of the last material applied.
It is furthermore known from DDR-PS 64 882 first to manufacture the bottom sole with a lateral margin, to arrange on the upper delimitation of the lateral margin the shoe upper arranged on the last and to supply through passages provided through the bottom sole, the material for the upper or comfort sole to the intermediate space delimited by the bottom sole and the upper base.
It is also known (again from DDR-PS 64 882) to mould a bottom sole from a section of material, for example a rubber plate, and then to form the upper sole.
It is furthermore known (DE-AS 20 22 118) to manufacture two-layer soles from mixtures of isocyanate and polyol which, when reaction is complete, give polyurethane in such a way that in a first process step a comfort or upper sole is moulded onto a shoe upper and, once reaction of the mixture to give polyurethane is complete, in a second process step the bottom sole is moulded on.
It is also known (DBP 22 41 493), in the manufacture of two-layer soles of mixtures of isocyanate and polyol which, when reaction is complete, give polyurethane, first to mould the bottom sole and then to form the comfort or upper sole in an intermediate space formed between the bottom sole and the upper on the last.
To mould the two sole layers, the reactive mixture is supplied in an appropriate quantity to a mould cavity whereof the volume is greater than the volume of the bottom or inner sole. These volumes are reduced after the supply of the respective reactive mixture to the volume of the sole layer concerned.
All these processes have in common the fact that first 4 the harder or abrasion-resistant sole is manufactured and only then is the elastic, i.e. in relation to the bottom sole, softer sole layer manufactured, since during moulding of the bottom sole onto an already manufactured comfort or upper sole the softer material of the comfort or upper sole would be compressed in an uncontrolled manner.
The tools designated as moulds for manufacturing shoe soles on shoe uppers have, in the simplest case, two side mould parts each having a milled-out section, a bottom die and a last (DE-AS 20 48 596, DE-PS 1 729 141, DE-OS 3 516 280).
In the closed position of the side mould parts, the milled-out sections form a passage which laterally delimits a mould cavity for the soles to be moulded onto a shoe upper.
The bottom die, guided height-adjustably in the passage, forms the lower delimitation of the mould cavity and the shoe upper drawn onto the last and to be arranged on the side mould parts in the closed position forms the upper delimitation of the mould cavity.
The side mould parts have in their bearing surface groovelike cutouts which run perpendicular to the direction of movement of the bottom die and which form, in the closed position of the side mould parts, sprue channels through which the material concerned is supplied for moulding the bottom sole or upper sole.
In this construction of the mould, the separation surface between the upper sole and the bottom sole and the running surface of the bottom sole run parallel to one another and correspond to the spatial geometry of the surface of the height-adjustable bottom die.
It is furthermore known (DDR-PS 64 882, DBP 2 241 493) to arrange the last for a shoe upper on a height-adjustable rotary head which has a counter-die in addition to the last.
For moulding the bottom sole, the counter-die penetrates into the passage and forms the upper delimitation of the mould cavity for the bottom sole, and during moulding of the bottom sole the counter-die blocks the sprue channel for the supply of material for the upper sole.
After supplying the material for the bottom sole, the bottom die is raised, after the bottom sole arranged thereon has hardened, by a predetermined amount and blocks the sprue bore for the further supply of material for the inner sole.
After the bottom sole has hardened sufficiently, the side mould parts are moved apart, the rotary head is moved upwards and pivoted so that the last with the shoe upper on it points in the direction of the bottom sole arranged on the bottom die.
After closing the side mould parts, the rotary head is moved so that the shoe upper drawn onto the last forms a sealed upper delimitation of the mould cavity for the upper sole to be moulded. The material for the inner or comfort sole is supplied by way of the sprue bore for the inner sole. Then, the rotary head with the finished shoe is raised and the finished shoe is removed from the last.
Furthermore, there are known moulds having a rotary head and two bottom dies. Both bottom dies form a height-adjustable and pivotal structural unit which is designated a pivotal bottom die.
By using the counter-die and one bottom die, an inner 6 sole and then, by exchanging the bottom die, the bottom sole are moulded and finally by exchanging the counter-die for the last with the shoe upper drawn on, the upper sole is moulded.
In this way, a three-layer sole is moulded onto a shoe upper.
In general, the bottom sole can be produced with passages into which the material of the inner layer next produced penetrates so that the running surface of the bottom sole has where appropriate regions of different colour.
It is furthermore known (US-PS 4 090 831) to arrange two pairs of side mould parts one above the other at different heights.
Two side mould parts of the upper pair operate in the manner described above with a shoe upper drawn onto a last and a bottom sole arranged on the bottom die to form the upper sole.
For moulding the bottom sole, the two side mould parts of the lower pair of the side mould parts are used and have on their end side facing the upper pair of-the side mould parts in each case an angled-off leg. In the closed position of the lower side mould parts, the two angled-off legs close the passage in the direction of the upper side mould parts and have the function of a counter-die during moulding of the bottom sole.
During moulding of the bottom sole, the bottom die cooperates with the lower side mould parts which are in the closed position and which are then brought into their open position so that the bottom die, with the bottom sole moulded thereon, can be brought into the working position in which it can cooperate with the upper side 7 mould parts to mould the upper soles.
The tools are grouped together with drive elements to form work-stations which are arranged in groups in series to form production lines or in groups on rotary tables to form rotary table equipment. The production lines and rotary table equipment in principle make it possible to achieve efficient manufacturing times for shoes, boots and the like.
In the following, the invention relates to moulding soles onto shoe uppers, the soles having a bottom sole, an upper sole and an inner sole, and the soles being of thermoplastic material or of mixtures of isocyanate and polyol which, when reaction is complete, give polyurethane.
When processing mixtures of isocyanate and polyol which, when reaction is complete, give polyurethane, as is known the difficulty arises that these mixtures have, at the beginning of mixing and also conveying to the mould cavities for moulding the sole layers (bottom sole, upper sole, inner sole), such a low viscosity that they may penetrate into gaps, for example the separation plane between the side mould parts, even if the parts of the moulds or tools are produced with extreme accuracy.
For this reason, during the moulding of soles of mixtures of isocyanate and polyol which, when reaction is complete, give polyurethane (DBP 22 41 493) bottom dies which are designated shell-type bottom dies, that is to say bottom dies which have a peripheral edge and to a certain extent form a shell, are used.
The counter-die is supported on this edge by means of a peripheral edge, the shell-type bottom die and the counter-die -which to a certain extent is to be 8 designated a shell-type counter-die - delimiting the mould space for the bottom sole in accordance with the mutual bearing of their edges.
To introduce into this mould cavity the material which, when reaction is complete, is polyurethane, the edge of the bottom die is distanced from the edge of the counter-die. The two side mould parts in the closed position delimit the sprue channel for the material to be introduced for the bottom sole to be moulded, and the shell-type bottom die in this position releases the sprue bore, so that the material to be introduced can be supplied to the shell-type bottom die. As soon as a predetermined quantity of material has been supplied to the shell-type bottom die, the bottom die is raised so that its edge comes to bear against the edge of the counter-die and it blocks the sprue bore. Since the viscosity increases during the reaction of the mixture, after a certain time reactive mixture can no longer come between the outer side face of the edge of the shelltype bottom die and the side mould parts.
In contrast hereto, it is possible for the reactive mixture to spread at the beginning along the outer side face of the edge of the counter-die. For this reason, in practice the procedure is such that the sequences are controlled so that the outer side face of the edge of the counter-die is sheathed in a layer of reactive material to form a seal. Only then is moulding of the bottom sole and of the other sole layers and moulding of the soles onto the shoe uppers carried out.
Below, a shell-type bottom die is still used even if the bottom sole and where appropriate the other sole layers are of thermoplastic material.
When moulding a sole which is of mixtures which, when 9 reaction is complete, give polyurethane and which comprises a bottom sole and an upper or inner sole onto shoe uppers, the moulds have a bottom die, two side mould parts and a counter-die.
In accordance with the same principle, soles having a bottom sole, an upper sole and an inner sole can also be moulded onto shoe uppers if a further counter-die is used. This makes the mould correspondingly expensive and the control of the mould considerably more complicated.
An object of the invention is to provide a method and apparatus for carrying out the moulding of shoes having a bottom sole, upper sole and inner sole onto shoe uppers without considerable additional expense for the mould and in particular for the control.
According to one aspect of the present invention there is provided a method of moulding soles onto shoe uppers, the soles having a bottom sole, an upper sole and an inner sole connecting the bottom sole to the upper sole, in which in a first method step the bottom sole and the upper sole are moulded using two side mould parts, a shell-type bottom die, a last which is placed on the side mould parts in the closed position and which has the shoe upper drawn on and an insertable contour plate dividing the passage of the side mould parts into two mould cavities, and after removal of the contour plate in a second method step the inner sole is moulded with simultaneous moulding onto the bottom sole and onto the upper sole.
A shell-type bottom die which is still used - even if the sole layers are moulded with thermoplastics material instead of with mixtures of isocyanate and polyol which, when reaction is complete, give polyurethane.
Preferably the dimensions of the contour plate are chosen such that it is supported on the edge of the shell-type bottom die and against the undercut of the side mould parts in the closed position. Preferably the contour plate has a spatial contour in the direction of the mould cavity for the bottom sole to be moulded, this spatial contour corresponding to that of the bottom sole with the inner sole. Conveniently the contour plate has a spatial contour in the direction of the mould cavity for the upper sole to be moulded, this spatial contour corresponding to that of the upper sole with the inner sole. Advantageously the thickness dimensions and further dimensions of the contour plate are selected such that after its removal a mould cavity with the dimensions for the inner sole to be moulded is produced.
The effect of these measures is that it is possible, using a mould for moulding two-layer soles onto shoe uppers, to mould three-layer soles onto shoe uppers without extensive alterations being.required of the mould and of the control.
According to another aspect of the present invention there is provided an apparatus for carrying out the method according to the said one aspect of the present invention, the apparatus comprising two side mould parts, a bottom die, at least one last, and a contour plate which divides the passage of the side mould parts in the closed position into a mould cavity for the upper sole and into a mould cavity for the bottom sole and may be placed on the edge of the shell-type bottom die.
Preferably the contour plate has a peripheral edge for support on the edge of the bottom die and on the undercut of the side mould parts. Preferably the dimensions of the part of the contour plate surrounded by the edge correspond to the dimensions of the inner sole.
In principle, the contour plate corresponds to a counter-die in which, after removing the die, the remaining counter-die plate is given on the die side, for example by material machining, a spatial contour which corresponds to that of the common contact surface between the upper sole and the inner sole.
In order to reduce this considerable work expenditure, the contour plate, for predetermining the dimensions of the mould cavity for the inner sole, may have a layer of material which may be moulded by the tool and which has a corresponding surface contour.
The result of these measures is that on the side of the contour plate pointing in the direction of the upper sole the contour plate is supplemented by the material which may be moulded by the tool (mould) in that it has the above-described dimensions in the direction of the upper sole.
The invention further relates to a process for manufacturing the contour plate, which is characterized in that in a first work operation a blank of the contour plate is manufactured, then the final and finish machining of the contour delimiting the mould cavity for the bottom sole are carried out and then, using the mould, a layer having a contour delimiting the mould cavity for the upper sole is applied to the blank.
The invention will further be described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 shows in a perspective view a bottom die and a contour plate according to an embodiment of the present invention; 12 Figure 2 shows a side view of the bottom die and the contour plate of Figure 1; Figure 3 shows diagrammatically the moulding of a bottom sole and an upper sole onto a shoe upper, the plane of the drawing being along the plane of bearing of the side mould parts in the closed position, and Figure 4 shows in the illustration of Figure 3 the moulding of the inner sole.
Figure 1 shows in perspective illustration a shell-type bottom die 1 and a contour plate 2. The shell-type bottom die 1 has a face 4 which is enclosed by an edge 3 and whereof the spatial contour corresponds to the running surface of the bottom sole to be moulded. The edge 3 is drawn upwards and has a bearing surface 5 which corresponds to a spatially extending enclosed edge.
The contour plate 2 has a peripheral edge 6, and is supported on the edge 3 by its peripheral edge 6 during moulding of the bottom sole, i.e. the bearing surface 7 of its edge 6 is supported on the complementary bearing surface 5.
The region of the contour plate 2 enclosed by the edge 6 has, in the direction of the bottom sole to be moulded, a spatially extending contour which corresponds to the contour of the common contact surface of the inner sole to be moulded and of the bottom sole to be moulded.
The peripheral edge 6 is supported, during moulding of the bottom sole and of the upper sole with its bearing surface 8, against the undercut of the side mould parts in the closed position (Fig. 3).
This enclosed edge 6 of the contour plate includes the 13 spatial region 9 of the contour plate whereof the dimensions correspond to the dimensions of the inner sole to be moulded.
Figure 2 shows a side view of Figure 1. Like parts are designated by like reference numerals, the die of the shell-type bottom die being designated 10.
Figure 3 shows diagrammatically the moulding of the bottom sole and of the upper sole, the drawing plane pointing along the mutual bearing plane of the side mould parts in the closed position, of which only the side mould parts below the plane of the drawing is visible and designated 11.
The contour plate 2 is supported by means of its edge 6 on the one hand against the undercut 12 of the side mould parts and on the other hand against the edge 3 of the shell-type bottom die 1. Here, the sprue bores 13 and 14 are left open and open into the mould cavities 15 and 16 respectively for the bottom sole and the upper sole.
The mould cavity for the upper sole is sealed in the region of the undercut by the shoe upper 18 drawn onto the last 17.
The contour plate has, as shown in Figure 3, a plate which has, in the direction of the mould cavity 15 for the bottom sole within the edge 6, a corresponding contour and has, in the direction of the mould cavity 16 for the upper sole, applied material 19 which is of the material for the bottom sole and which is contoured such that the region of the contour plate surrounded by the edge 6 has the dimensions of the inner sole to be moulded.
After moulding the bottom sole and moulding the upper 14 sole, which is moulded at the same time onto the shoe upper, the contour plate is removed manually or by means of a gripper, so that in accordance with Fig. 4 the sprue bore 20 for the material of the inner sole is left open (position of the bottom die in Figure 4), the enlarged mould cavity 21 being formed.
After introducing the material for the inner sole, the shell-type bottom die is raised until it bears upwards against the undercut 12 of the side mould parts, so that the mould cavity 21 is reduced to the volume of the inner sole and the sprue bore 20 is blocked. After the sole material has reacted, the shoe is removed from the last in a manner known per se.
The contour plate is manufactured by forming a blank. The blank is machined on a first side to define a contour delimiting the mould cavity for the bottom sole. Material shaped to delimit the volume of the inner sole is applied to the second side of the contour plate.
is
Claims (6)
1. A method of moulding soles onto shoe uppers, the soles having a bottom sole, an upper sole and an inner sole connecting the bottom sole to the upper sole, in which in a first process step the bottom sole and the upper sole are moulded using two side mould parts, a shell-type bottom die and a last which is placed on the side mould parts in the closed position and which has the shoe upper drawn on and an insertable contour plate dividing the passage of the side mould parts into two mould cavities, and after removal of the contour plate in a second process step the inner sole is moulded with simultaneous moulding onto the bottom sole and onto the upper sole.
2. An apparatus for carrying out the method according to Claim 1, comprising two side mould parts, a bottom die, at least one last, and a contour plate which divides the passage of the side mould parts.in the closed position into a mould cavity for the upper sole and a mould cavity for the bottom sole and which may be placed on the edge of the shell-type bottom die.
3. A contour plate for the apparatus as claimed in claim 2, in which the contour plate has a peripheral edge for support on the edge of the bottom die and on the undercut of the side mould parts, and in that the dimensions of the region of the contour plate surrounded by the edge corresponds to the dimensions of the inner sole.
4. A contour plate as claimed in claim 3, in which the contour plate, for predetermining the dimensions of the mould cavity for the inner sole, has a layer of a material which is moulded having a surface contour corresponding to a common contact surface between the 16 upper sole and the inner sole.
5. A method of manufacturing a contour plate as claimed in claim 4, in which in a first work operation a blank of the contour plate is manufactured, then the machining of the contour delimiting the mould cavity for the bottom sole is carried out and then, using the mould, a layer having a contour delimiting the mould cavity for the upper sole is applied to the blank.
6. A contour plate as hereinbefore described, with reference to the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914114088 DE4114088C1 (en) | 1991-04-30 | 1991-04-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9208470D0 GB9208470D0 (en) | 1992-06-03 |
GB2255308A true GB2255308A (en) | 1992-11-04 |
Family
ID=6430666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9208470A Withdrawn GB2255308A (en) | 1991-04-30 | 1992-04-16 | Method and apparatus for moulding soles onto shoe uppers |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPH05329003A (en) |
DE (1) | DE4114088C1 (en) |
ES (1) | ES2064185B1 (en) |
FR (2) | FR2675984A1 (en) |
GB (1) | GB2255308A (en) |
PL (1) | PL294307A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5433022A (en) * | 1993-04-16 | 1995-07-18 | Lo; Chie-Fang | Three color side wall rubber sole in simply changeable mode |
WO1996007536A1 (en) * | 1994-09-09 | 1996-03-14 | White & Co. (Earls Barton) Limited | Footwear and the manufacture thereof |
EP1080651A1 (en) * | 1999-09-02 | 2001-03-07 | Salomon S.A. | Shoe sole |
US6689300B2 (en) * | 2001-03-28 | 2004-02-10 | Mao-Cheng Tsai | Method of integrally forming shoe with multiple material |
US20120255205A1 (en) * | 2009-11-06 | 2012-10-11 | Ecco Sko A/S | Method and insert for manufacturing a multi-density shoe sole |
IT201700033305A1 (en) * | 2017-03-27 | 2018-09-27 | Filippo Scolaro | PROCEDURE FOR THE REALIZATION OF A MULTI-LAYER SOLE DIRECTLY ON THE UPPER AND WORKING MACHINE WITH SUCH PROCEDURE |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100446018B1 (en) * | 2001-09-19 | 2004-08-30 | 김창희 | Making process of shoes |
CN117754806B (en) * | 2023-12-04 | 2024-10-01 | 广东恩浩内衣实业有限公司 | Combined forming process, footwear fittings and shoes |
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GB1157131A (en) * | 1966-08-05 | 1969-07-02 | Westland Gummiwerke Gmbh & Co | A Vulcanising Mould for making a Built-Up Heel of Rubber or an equivalent Substance |
GB1172210A (en) * | 1967-10-20 | 1969-11-26 | Friedrich Stuebbe | Method and device for Moulding Multi-Layer Soles of Elastomers onto Shoe Uppers |
GB1518866A (en) * | 1975-09-11 | 1978-07-26 | Metzeler Kautschuk | Methods of and mould for producing laminated members |
US4556191A (en) * | 1983-04-07 | 1985-12-03 | Mangogna Joseph V | Mold for the manufacture of shoe soles |
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CH272346A (en) * | 1949-02-17 | 1950-12-15 | Helsingborgs Gummifabriks | Process for the production of press molds for compression molding of articles made of rubber and the like. |
DE1485987A1 (en) * | 1964-04-01 | 1969-06-19 | Phoenix Gummiwerke Ag | Mold for manufacturing footwear from thermoplastic or vulcanizable material |
CA926571A (en) * | 1969-10-03 | 1973-05-22 | H. Drag Edward | Method and apparatus for molding rubber |
DE2022118B2 (en) * | 1970-05-06 | 1972-01-20 | Desma Werke Gmbh | METHOD AND DEVICE FOR MOLDING A MULTI-PART, IN PARTICULAR MULTI-LAYER, SOLE MADE OF INJECTABLE MATERIAL, IN PARTICULAR POLYURETHANE, ON A SHOE |
DE2241493C3 (en) * | 1972-08-23 | 1975-06-26 | Desma-Werke Gmbh, 2807 Uesen | Method and device for the production of multi-layer soles from materials of low viscosity, in particular polyurethane or rubber |
US4090831A (en) * | 1975-07-05 | 1978-05-23 | Bata Shoe Co., Inc. | Apparatus for injection of a sole of two moldable materials for an article of footwear |
US4072461A (en) * | 1975-09-11 | 1978-02-07 | Metzeler Kautschuk Ag | Apparatus for the production of laminated bodies particularly, multilayered shoe soles |
DE3516280A1 (en) * | 1985-05-07 | 1986-11-13 | Elastogran Maschinenbau GmbH, 2844 Lemförde | Process and device for producing multi-layer soles from low-viscosity material, in particular multi-component plastics such as polyurethane |
IT1197252B (en) * | 1986-09-19 | 1988-11-30 | Ottogalli Spa | PROCESS AND EQUIPMENT FOR THE PRODUCTION OF FOOTWEAR WITH MULTI-LAYER SOLE OF DIFFERENT MATERIALS IN FOUR COLORS |
IT1204662B (en) * | 1987-05-29 | 1989-03-10 | Armenak Moumdjian | PNEUMATIC CHAMBER INSOLE FOR FOOTWEAR, MOLD AND FORMING METHOD RELATED |
IT1233761B (en) * | 1989-03-13 | 1992-04-14 | Sportime Spa | PROCESS AND MOLD FOR THE PRODUCTION OF FOOTWEAR WITH SOLES AND MIDSOLE IN MORE COLORS AND / OR MATERIALS. |
DE4100764A1 (en) * | 1990-09-18 | 1992-03-19 | Kloeckner Ferromatik Desma | Tool and installation for forming outer and intermediate soles - comprising shoe body, side moulding parts and counter-pressure plate, side moulding parts having openings in side faces |
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-
1991
- 1991-04-30 DE DE19914114088 patent/DE4114088C1/de not_active Expired - Fee Related
-
1992
- 1992-03-18 ES ES9200588A patent/ES2064185B1/en not_active Expired - Lifetime
- 1992-04-16 GB GB9208470A patent/GB2255308A/en not_active Withdrawn
- 1992-04-23 PL PL29430792A patent/PL294307A1/en unknown
- 1992-04-27 JP JP4107262A patent/JPH05329003A/en active Pending
- 1992-04-28 FR FR9205223A patent/FR2675984A1/en active Pending
- 1992-07-07 FR FR9208363A patent/FR2678491A1/en active Pending
Patent Citations (4)
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GB1157131A (en) * | 1966-08-05 | 1969-07-02 | Westland Gummiwerke Gmbh & Co | A Vulcanising Mould for making a Built-Up Heel of Rubber or an equivalent Substance |
GB1172210A (en) * | 1967-10-20 | 1969-11-26 | Friedrich Stuebbe | Method and device for Moulding Multi-Layer Soles of Elastomers onto Shoe Uppers |
GB1518866A (en) * | 1975-09-11 | 1978-07-26 | Metzeler Kautschuk | Methods of and mould for producing laminated members |
US4556191A (en) * | 1983-04-07 | 1985-12-03 | Mangogna Joseph V | Mold for the manufacture of shoe soles |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5433022A (en) * | 1993-04-16 | 1995-07-18 | Lo; Chie-Fang | Three color side wall rubber sole in simply changeable mode |
WO1996007536A1 (en) * | 1994-09-09 | 1996-03-14 | White & Co. (Earls Barton) Limited | Footwear and the manufacture thereof |
US5890248A (en) * | 1994-09-09 | 1999-04-06 | White & Co. (Earls Barton) Limited | Footwear and the manufacture thereof |
EP1080651A1 (en) * | 1999-09-02 | 2001-03-07 | Salomon S.A. | Shoe sole |
US6689300B2 (en) * | 2001-03-28 | 2004-02-10 | Mao-Cheng Tsai | Method of integrally forming shoe with multiple material |
US20120255205A1 (en) * | 2009-11-06 | 2012-10-11 | Ecco Sko A/S | Method and insert for manufacturing a multi-density shoe sole |
US9283724B2 (en) * | 2009-11-06 | 2016-03-15 | Ecco Sko A/S | Method and insert for manufacturing a multi-density shoe sole |
IT201700033305A1 (en) * | 2017-03-27 | 2018-09-27 | Filippo Scolaro | PROCEDURE FOR THE REALIZATION OF A MULTI-LAYER SOLE DIRECTLY ON THE UPPER AND WORKING MACHINE WITH SUCH PROCEDURE |
WO2018177684A1 (en) | 2017-03-27 | 2018-10-04 | Scolaro Filippo | Process for manufacturing a multi-layered sole directly on the upper and machine operating with said process |
RU2760963C2 (en) * | 2017-03-27 | 2021-12-01 | Филиппо СКОЛАРО | Method for manufacturing multilayer sole directly on top workpiece |
US11910886B2 (en) | 2017-03-27 | 2024-02-27 | Filippo SCOLARO | Process for manufacturing a multi-layered sole directly on the upper and machine operating with said process |
Also Published As
Publication number | Publication date |
---|---|
ES2064185R (en) | 1996-08-16 |
FR2678491A1 (en) | 1993-01-08 |
ES2064185B1 (en) | 1997-03-01 |
JPH05329003A (en) | 1993-12-14 |
DE4114088C1 (en) | 1992-12-17 |
PL294307A1 (en) | 1992-11-02 |
ES2064185A2 (en) | 1995-01-16 |
GB9208470D0 (en) | 1992-06-03 |
FR2675984A1 (en) | 1992-11-06 |
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