EP0143833A1 - Apparatus and method for making footwear - Google Patents
Apparatus and method for making footwearInfo
- Publication number
- EP0143833A1 EP0143833A1 EP84902161A EP84902161A EP0143833A1 EP 0143833 A1 EP0143833 A1 EP 0143833A1 EP 84902161 A EP84902161 A EP 84902161A EP 84902161 A EP84902161 A EP 84902161A EP 0143833 A1 EP0143833 A1 EP 0143833A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extended edge
- mold
- last
- sole
- mold sections
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 239000012778 molding material Substances 0.000 claims description 4
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000013011 mating Effects 0.000 description 9
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000009966 trimming Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 206010036437 Posturing Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000004636 vulcanized rubber 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
- B29D35/0009—Producing footwear by injection moulding; Apparatus therefor
- B29D35/0018—Moulds
-
- 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
- B29D35/061—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 by injection moulding
-
- 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
- B29D35/065—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 by compression moulding, vulcanising or the like
Abstract
Moule (12) permettant de former une semelle sur une empeigne de chaussure possédant un bord ou une trépointe de semelle étendu formé autour de la périphérie inférieure de la chaussure et comprenant une plaque de semelle (20), une forme sur laquelle l'empeigne (18) peut être adaptée pour y former la semelle, et pouvant être positionnée à l'écart de la plaque de semelle, une première et une deuxième sections de moule (21, 22) pouvant agir de concert avec la plaque de semelle (20) et la forme, les sections de moule (21, 22) possédant des évidements agissant de concert avec au moins la plaque de semelle (20), entre elles et une partie d'une empeigne de chaussure (18) et son bord étendu, adapté sur la forme, lorsque les sections de moule (21, 22) sont positionnées de manière à agir de concert avec la plaque de semelle (20) et la forme pour définir une cavité de moule (58) possédant une configuration s'adaptant à une configuration désirée de la semelle à mouler sur le bord étendu et l'empeigne (18) adaptée sur la forme, chaque section de moule possédant un mécanisme pouvant s'engager par serrage dans une partie du bord étendu de l'empeigne de chaussure (18) adapté sur la forme, un mécanisme permettant de déplacer le mécanisme de serrrage de bord étendu des sections de moule (21, 22) en engagement avec le bord étendu lorsque les sections de moule (21, 22) se déplacent de manière à agir de concert avec la plaque de semelle (20) et la forme, et au moins une des sections de moule (21, 22) possédant au moins un passage de fluide (59) en communication avec une source de matériau fluide de moulage permettant d'alimenter la cavité de moule (58) en un tel matériau.A mold (12) for forming a sole on a shoe upper having an extended sole edge or welt formed around the lower periphery of the shoe and including a sole plate (20), a last on which the upper ( 18) can be adapted to form the sole, and can be positioned away from the sole plate, a first and second mold sections (21, 22) able to act in concert with the sole plate (20) and the shape, the mold sections (21, 22) having recesses acting in concert with at least the sole plate (20), between them and a part of a shoe upper (18) and its extended edge, adapted on the form, when the mold sections (21, 22) are positioned to act in concert with the sole plate (20) and the form to define a mold cavity (58) having a configuration adapting to a desired configuration of the sole to be molded on the extended edge and the upper (18) adapted to the shape, each mold section having a mechanism capable of engaging by clamping in a part of the extended edge of the shoe upper (18 ) fit on the form, a mechanism for moving the extended edge clamping mechanism of the mold sections (21, 22) into engagement with the extended edge when the mold sections (21, 22) move so as to act as concert with the sole plate (20) and the shape, and at least one of the mold sections (21, 22) having at least one fluid passage (59) in communication with a source of molding fluid material for supplying the mold cavity (58) made of such a material.
Description
-1- APPARATUS AND METHOD FOR MAKING FOOTWEAR Background of the Invention
This invention relates to the manufacture of footwear and more particularly to an apparatus and method for forming a sole on a shoe upper. The invention further contemplates a novel mold for molding a sole on a shoe upper having a welt or an extended edge formed about a lower periphery thereof, fitted on a last.
In the manufacture of certain casual, recreational, or other footwear, it has been the conventional practice in the industry to form a shoe upper from a suitable material, to fit the upper on a last and then to position the bottom surface of the upper fitted on the last in a mold to mold the sole portion of the footwear onto the bottom surface of the upper. In the use of such method, it has been found that the liquid, plastic, or rubber material injected into the mold cavity to form the sole of the footwear inevitably tends to seep between the mold body and the bottom portion of the shoe upper fitted on the last, and set. Such seepage is undesirable in that it requires an additional trimming or cleaning operation which increases the cost of production of the footwear or, if not removed, detracts from the appearance of the final product. It thus has been found to be desirable to provide a means for molding a sole onto a shoe upper fitted on a last which eliminates the problem of seepage heretofore encountered in the use of prior art methods of molding soles on shoe uppers.
Accordingly, the principal object of the present invention is to provide a novel apparatus and method for making footwear.
Another object of the present invention is to provide a novel apparatus and method for forming the sole portion of a shoe on a shoe upper.
A further object of the present invention is to provide a novel apparatus and method for molding the sole portion of a shoe onto a shoe upper.
A still further object of the present invention is to provide a novel apparatus and method of forming the sole portion of a shoe on a shoe upper without incurring any undesirable deposit of sole material on the shoe upper which would require an additional cleaning or trimming operation.
Another object of the present invention is to provide a novel apparatus and method for molding the sole portion on a shoe upper which prevents seepage of the material injected into the mold cavity for the sole, between the mold body and the shoe upper which would deposit and set on or adjacent the shoe upper, requiring an additional trimming or cleaning operation.
A further object of the present invention is to provide a novel apparatus and method for forming the sole portion of a shoe on a shoe upper which are simple in design and operation, comparatively easy to use and relatively inexpensive to construct and perform.
Other objects and advantages of the present invention will become more apparent to those persons having ordinary skiE in the art to which the present " invention pertains from the following description taken in conjunction with the accompanying drawings.
Brief Description of the Drawings
Figure 1 is a side-elevational view of an embodiment of the invention, having portions thereof broken away.
Figure 2 is an enlarged, perspective view of several components of the mold assembly comprising a part of the embodiment shown in Figure 1.
Figure 3 is an enlarged, front-elevational view of the embodiment shown in Figure 1, having portions thereof broken away.
Figure 4 is an enlarged, cross-sectional view taken along line 4-4 in Figure 1.
Figure 5 is a view similar to the view shown in Figure 3, iUustrating certain sections of the mold assembly in spaced relation.
Figure 6 is an enlarged, cross-sectional view taken along line 6-6 in Figure 1.
Figure 7 is a cross-sectional view taken along line 7-7 in Figure 6.
Figure 8 is a view similar to the view shown in Figure 6, having the last and shoe upper fitted thereon removed and certain mold sections disposed in spaced relation.
O FI fa wo
Description of the Preferred Embodiment
The present invention generaEy includes a frame 10, a last carrier assembly U supported on the frame and a mold assembly 12 also supported on the frame. Referring to Figure 1, the shoe carrier assembly includes a horizontaUy disposed shaft 13 supported on a pair of axiaUy spaced components 14 of the frame, and a carrier 15 having a plurality of radially disposed leg sections 16 rotatable about shaft 13 in substantially a vertical plane. Formed on the free end of each leg section is a last 17 on which a shoe upper 18 may be fitted.
The last carrier assembly is adapted to be indexed either manuaEy or by means of an appropriate drive mechanism between a loading and unloading station A, a work station B and cooling or setting stations C and D. It wiE be appreciated that in a normal operating cycle, a shoe upper may be fitted onto the last positioned at station A, the last carrier may then be indexed to position the last with the upper fitted thereon at the work station B, and then, after forming the sole portion, the last with the upper having a sole portion molded thereon may be indexed to stations C and D for cooling or setting of the sole material. FinaUy, the last with the finished shoe fitted thereon may be indexed to station A where the operator would remove the finished shoe, fit another upper on the last and repeat the cycle.
It is contemplated that different last carrier assemblies be used corresponding to different shoe sizes and different moldings. It further is contemplated that the uppers fitted onto the lasts be of any desired style and material. Each of such uppers, however, is provided with a strip or welt or extended edge formed about the periphery of a lower portion thereof onto which the sole portion may be molded, in addition to the bottom surface of the upper.
Mold assembly 12 generally includes a sole plate 20 and a pair of mold sections 21 and 22. Sole plate 20 is positioned at work station B and is adapted to be detachably mounted on frame 10. The sole plate is located at work station B so that when a last of the last carrier assembly is positioned at work station B, as shown in Figure 1, the last wiE be in vertical, spaced alignment with the sole plate. As best shown in Figure 2, the sole plate is provided with a pair of curved sidewalls 23 and 24 usuaEy, but not necessarily, conforming to the shape of the sole to be formed on an upper fitted on a last positioned at work station B, and an upper surface 25 having a desired pattern intended to be embossed on the bottom of the sole to be formed.
Mold section 21 includes a base plate 26 and a clamp plate 27 hingedly mounted on the base plate. The base plate has a height or thickness greater than the height or thickness of sole plate 20, and an inner mating surface 28 having
a recessed portion 29. The recessed portion of mating surface 28 is defined by a waE 30 having the same shape as and engageable with sidewaE 23 of sole plate 20.
The outer side of base plate 26 is provided with a pair of spaced hinge blocks 31 and 32 in which there are provided a pair of aligned hinge pins for hingedly connecting clamp plate 27 to base plate 26. Also mounted at one end of base plate 26 is a camming block 32 having an inwardly and downwardly facing camming surface 33.
Clamp plate 27 is provided with a mating surface 34 having a recessed portion 35. Such recess is -defined by a curved surface 36 which is relieved as at
36a. When clamp plate 27 is in a closed position, i.e., pivoted downwardly and resting on the upper surface of base plate 26, the lower edge of the recessed portion thereof overlies the recessed portion 30 of base plate 26, forming a lip portion which is adapted to engage the upper side of a side portion of a welt formed on a shoe upper fitted on a last positioned at work station B. As such lip portion overlies and engages the welt of an upper, curved waE 36 engages a lower side portion of the upper fitted on the last.
Mating surface 34 of clamp plate 27 further is provided with an inwardly and upwardly facing cam surface 37 disposed at one end thereof and an inwardly and downwardly facing cam surface 38 at the opposite end thereof. Clamp plate 27 is biased in an open position, i.e., pivoted upwardly and away from base plate 26, by means of a coil spring 39 seated in a recess provided in the upper surface of base plate 26, and engaging the underside of the clamp plate.
Mold section 22 is similar in construction to mold section 21, consisting of a base plate 40 comparable to base plate 26 and a clamp plate 41 comparable to clamp plate 27. Base plate 40 is provided with an inner surface 42 comparable to and adapted to be mated with inner surface 28 of base plate 26. Mating surface
42 similarly is provided with a recess corresponding to recess 30 defined by a curved waE 43 having the same configuration and engageable with sidewaE 24 of the sole plate. Mounted on the _outer_side of base plate 40 is a pair of hinge blocks
44 and 45, comparable to hinge blocks 31 and 32, provided with a pair of pins for hingedly connecting clamp plate 41 to base plate 40. As best shown in Figure 8, clamp plate 41 is provided with an inner surface 46 adapted to mate with mating surface 34 of clamp plate 27, having a recessed portion 47. Such recessed portion is defined by a curved surface 48, comparable to curved surface 36 of clamp plate
27, relieved as at 48a. Similar to clamp plate 27, the edge of the recessed portion of clamp plate 41, along surface 48, is adapted to overlie the recessed portion of mating surface 42 of base plate 40, and engage the upper surface of a welt formed on a shoe upper fitted on a last disposed at work station B when mold section 22 is in a closed or operative position. Under such conditions, edgewaE 48 defining recess 47 wiE engage a lower side portion of the upper fitted on such last O RE-A OMPI
Mating surface 46 of clamp plate 41 further is provided with an inwardly and downwardly facing cam surface 49 engageable with cam surface 37 of clamp, plate 27, and an inwardly and upwardly facing cam surface 50 engageable with inwardly and downwardly facing cam surface 38 on clamp plate 27.
Base plate 40 also is provided with a coE spring 51 seated in a recess provided on the upper surface of the base plate, and engaging clamp plate 41. In addition, base plate 40 is provided with a clamp block 52 having a downwardly and inwardly facing cam surface 53 adapted to engage an upper corner 54 of cam plate 27 to pivot the clamp plates downwardly against the biasing action of coE springs 38 and 51. Cam surface 33 of cam block 32 similarly is adapted to engage an upper corner 55 of clamp plate 41 to similarly urge the two clamp plates downwardly against the biasing action of coil springs 39 and 51.
Mold sections 21 and 22 are disposed at work station B and are caused to move inwardly and outwardly into and out of engagement with sole plate 23 by means of a pair of conventional hydraulic cylinder assembUes 56 and 57, or other equivalent means. Such assemblies may be operated independently of the indexing of the last carrier assembly or may be operated in synchronization with the indexing of the last carrier assembly to provide a more automated operation.
In the use of the apparatus as described, the hydrauEc cylinder assemblies are operated to supply fluid under pressure to the rod sides of the cylinders, causing the rods to retract and the mold sections to be spaced apart as shown in Figures 5 and 8. With the mold sections thus positioned, a shoe upper having a welt 19 formed thereon is fitted on a last positioned at loading and unloading station A. As soon as the upper is suitably fitted on the last, the last carrier assembly is indexed to position the last with the upper at work station B whereby the last wiE be disposed in spaced, vertical alignment with sole plate 20. With the last thus positioned, the control circuit for the hydrauEc cylinder assemblies is activated either manuaEy or automaticaEy to cause fluid under pressure to be supplied to the piston ends of the cylinder assembEes to extend the rods thereof and thus cause mold sections 21 and 22 to move together into engagement with the sole plate and the peripheral side edge of welt 19.
As the mold sections thus come together, base plate mating surfaces 28 and 42 engage and recess surfaces 30 and 43 of the base plates engage sidewaEs 23 and 24 of the sole plate. In addition, as the mold sections are moved together into engagement with the sole plate, initiaEy, cam surfaces 33 and 53 engage corner surfaces 55 and 54, respectively, and, sequentiaEy, cam surface 37 engages cam surface 49 and cam surface 38 engages cam surface 50, to cause clamp
-^0R£Λ G PI
plates 27 and 41 to pivot downwardly against the biasing action of springs 39 and 51 to engage the upper peripheral portion of welt 19, as best shown in Figures 4, 6 and 7. The interrelationship of a last and the mold assembly as described, provides a mold cavity 58 defined by upper surface 25 of the sole plate, the bottom surfaces of the upper fitted on the last and the welt formed on such upper, and the upper portions of recess sidewaEs 30 and 43.
With the mold cavity thus formed, a fluid sole forming material is supplied through suitable supply line 59 connected to suitable fluid passageway 60 provided in the base plates of the mold sections, and injected into mold cavity 58 in the conventional manner. Air is ejected from the mold cavity as the sole forming material is injected therein.
As soon as the mold cavity has been filled and the material has been aEowed a short time to set, the controls for the hydraulic cylinder assemblies are operated to retract the mold sections, permitting the clamp plates thereof to be released and biased upwardly out of engagement with the upper sides of the welt or extended edge. SequentiaEy, the sole plate may be lowered to free the molded sole therefrom and the last carrier assembly is indexed to position the shoe with the newly formed sole to cooling or setting station C while another last having an upper fitted thereon is positioned at the work station to begin another molding operation. EventuaEy, the finished shoe is cycled back to loading and unloading station A where it is removed by the operator. The operator then fits another upper on the last to continue the operation.
The shape of the bottom portion of the shoe upper fitted on a last at the work station and the welt formed thereon, conforms to the shape of the upper surface of the sole plate so that when the mold assembly is in an assembled condition as shown in Figure 4, recess walls 30 and 43 of base plates 26 and 40 wiE engage the side edges of the welt and clamp plates 27 and 41 will engage the upper edges of the welt or extended edge. Under such conditions, the molding material injected under pressure into mold cavity 58 wiE be prevented-from-seeping— between the welt or extended edge and either a base plate or a clamp plate. Accordingly, no molding material will be deposited either on the side or upper edges of the welt or extended edge requiring an additional cleaning or trimming operation.
As the mold sections move apart and the various interengaging cam surfaces disengage, the biasing action of coil springs 39 and 51 wiE cause the clamp plates to disengage the welt on the shoe upper thus facilitating the retraction of the mold sections and posturing the clamp plates for the positioning and clamping of the next shoe upper.
By varying the last sizes, the materials and styles of the shoe uppers and the sizes and configurations of the mold components, different footwear of various
- SE_
styles and different sizes can be manufactured with the present invention.
Although a rotary type of last carrier assembly has been described in connection with the present invention, it is contemplated that other types of devices may be used to position and remove lasts having shoe uppers fitted thereon with respect to the mold assembly as described, for forming the sole portion of a shoe on a shoe upper. In addition, it is within the contemplation of the invention to utilize any moldable materials for forming the sole portions, including conventional thermoplastics and vulcanized rubber.
From the foregoing detailed description, it wiE be evident that there are a number of changes, adaptations and modifications of the present invention which faE within the province of those persons having ordinary skiE in the art to which the present invention pertains. However, it is intended that aE such variations not departing from the spirit of the invention be considered as within the scope thereof as limited solely by the appended claims.
f P
Claims
1. An apparatus for forming a sole on a shoe upper having an extended edge formed about a lower periphery thereof comprising a sole plate disposed at a work station, at least one last on which said shoe upper may be fitted for forming said sole thereon, means for positioning said last with a shoe upper fitted thereon at said work station with said last being spaced from said sole plate, sole molding means disposed adjacent said work station, said molding means including first and second sections movable into and out of cooperative relation with said sole plate and a last positioned at said work station, said mold sections having recessed portions cooperable with at least said sole plate, each other and a portion of a shoe upper and the extended edge thereof, fitted on a last positioned at said work station, when said molding sections are positioned in their cooperative relation with said sole plate and a last positioned at said work station, to define a mold cavity having a configuration conforming to a desired configuration of the sole to be molded onto the extended edge and shoe upper fitted on said last positioned at said work station, means for moving said first and second mold sections into and out of said cooperative relation with said sole plate and a last positioned at said work station, each of said mold sections having means movable into and out of clamping engagement with a portion of the extended edge of a shoe upper fitted on a last positioned at said work station, means for moving the extended edge clamping means of said mold section into engagement with an extended edge of a shoe upper fitted on a last positioned at said work station when said mold sections are moved into said cooperative relation with said sole plate and a last positioned at said work station, and means for injecting a sole forming material into said mold cavity.
2. The apparatus according to Claim 1 wherein said means for moving the extended edge clamping means comprise means disposed on said mold sections.
3. The apparatus according to Claim 2 wherein said means for moving the extended edge clamping means comprise interengaging cam surfaces.
4. The apparatus according to Claim 3 wherein said extended edge clamping means normaEy are biased in a nonengaging relation relative to said extended edge.
5. The apparatus according to Claim 1 wherein said extended edge clamping means comprises a plate member pivotally mounted on a mold section.
6. The apparatus according to Claim 5 wherein said means for moving said extended edge clamping means comprise cam surfaces disposed on said mold sections and said plate members interengageable when said mold sections are moved into said cooperative relation to pivot said plate members onto outer sides of said extended edge.
OMPI
7. The apparatus according to Claim 6 wherein said plate members normaEy are biased in a nonengaging relation relative to said extended edge.
8. The apparatus according to Claim 1 wherein recessed portions of said mold sections engage the periphery of said extended edge when in said cooperative relation with said sole plate and a last positioned at said work station.
9. A mold for forming a sole on a shoe upper having an extended edge formed about a lower periphery thereof comprising a sole plate, a last on which said shoe upper may be fitted for forming said sole thereon, positionable in spaced relation to said sole plate, first and second mold sections movable into and out of cooperative relation with said sole plate and said last, said mold sections having recessed portions cooperable with at least said sole plate, each other and a portion of a shoe upper and the extended edge thereof, fitted on said last, when said mold sections are positioned in cooperative relation with said sole plate and said last, to define a mold cavity having a configuration conforming to a desired configuration of the sole to be molded onto the extended edge and shoe upper fitted on said last, each of said mold sections having means movable into and out of clamping engagement with a portion of the extended edge of the shoe upper fitted on said last, means for moving the extended edge clamping means of said mold section into engagement with said extended edge when said mold sections are moved into said cooperative relation with said sole plate and said last, and at least one of said mold sections having at least one fluid passageway communicable with a fluid molding material source for supplying said material to said mold cavity.
10. The mold according to Claim 9 wherein said means for moving the extended edge clamping means comprise means disposed on said mold sections.
E. The mold according to Claim 10 wherein said means for moving the extended edge comprises interengaging cam surfaces.
12. The mold according to Claim E wherein said extended edge clamping means normaEy are biased in a nonengaging relation relative to said extended edge.
13. The mold according to Claim 9 wherein said extended edge engaging means comprises a plate member pivotaEy mounted on a mold section.
14. The mold according to Claim 13 wherein said means for moving said extended edge clamping means comprise cam surfaces disposed on said mold sections and plate members interengageable when said mold sections are moved into said cooperative relation with said sole plate and said last to pivot said plate members onto outer sides of said extended edge.
15. The mold according to Claim 14 wherein said plate members normaEy are biased in a nonengaging relation relative to said extended edge.
16. The mold according to Claim 9 wherein recessed portions of said mold sections engage the periphery of said extended edge when disposed in said cooperative relation with said sole plate and said last.
17. A method of forming a sole on a shoe upper having an extended edge- along a lower periphery thereof comprising fitting said upper on a last, positioning the last with the shoe upper fitted thereon in spaced relation to a sole plate, positioning mold sections having recesses therein in cooperative relation with said last and sole plate forming a mold cavity defined by said sole plate, recessed portions of said mold sections a portion of said shoe upper fitted on said last and said extended edge, positioning at least one plate on the outer side of said extended edge to provide a backing for said extended edge and seal the spaces between said extended edge and said mold sections, injecting a molding material into said mold cavity, permitting said mold material to set and then removing said backing plates and mold sections.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49438083A | 1983-05-13 | 1983-05-13 | |
| US494380 | 1983-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0143833A1 true EP0143833A1 (en) | 1985-06-12 |
Family
ID=23964235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84902161A Withdrawn EP0143833A1 (en) | 1983-05-13 | 1984-05-10 | Apparatus and method for making footwear |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0143833A1 (en) |
| IT (1) | IT8448187A0 (en) |
| WO (1) | WO1984004444A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2188309B1 (en) * | 1999-06-16 | 2004-10-16 | Tahullas Y Naves, S.L. | PROCEDURE FOR PLACEMENT OF SIDE BANDS IN THE MANUFACTURE OF FOOTWEAR BY INJECTION. |
| CN100548656C (en) | 2002-03-04 | 2009-10-14 | 伊科斯克有限公司 | Sole is molded into the method for upper of a shoe and implements used welt of this method and footwear mould |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3669590A (en) * | 1969-04-11 | 1972-06-13 | Antonio Nova Off Mec | Apparatus for making shoes |
| US3949040A (en) * | 1969-10-03 | 1976-04-06 | Uniroyal Inc. | Method of making footwear having a two-color rubber sole |
| US3671621A (en) * | 1970-07-01 | 1972-06-20 | Tatsuo Fukuoka | Injection molding method for sandals |
| JPS51129340A (en) * | 1975-04-30 | 1976-11-10 | Tatsuo Fukuoka | Method of producing clogs |
| DE2830605A1 (en) * | 1978-07-12 | 1980-01-31 | Desma Werke Gmbh | DEVICE FOR MANUFACTURING FOOTWEAR WITH A SIDE-ORIENTED EDGE OR FRAME |
| US4217081A (en) * | 1979-05-22 | 1980-08-12 | Usm Corporation | Shoe sole molds |
-
1984
- 1984-05-10 WO PCT/US1984/000705 patent/WO1984004444A1/en unknown
- 1984-05-10 EP EP84902161A patent/EP0143833A1/en not_active Withdrawn
- 1984-05-11 IT IT8448187A patent/IT8448187A0/en unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8404444A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1984004444A1 (en) | 1984-11-22 |
| IT8448187A0 (en) | 1984-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2497226A (en) | Method of making pneumatic tires | |
| CN102076461B (en) | tread band demolding tool | |
| US4407034A (en) | Manufacture of shoes | |
| US5505603A (en) | Apparatus for manufacturing an air filter | |
| US3709973A (en) | Manufacture of footwear and/or components thereof by injection molding of synthetic resinous material or other molding materials | |
| US4960374A (en) | Apparatus for molding outer and inner soles and a sole welt onto shoe uppers | |
| US4778368A (en) | Device for the production of boots having portions of different colors | |
| EP0143833A1 (en) | Apparatus and method for making footwear | |
| US3131432A (en) | Plastic injection molding machines | |
| EP3626441A1 (en) | Multi-part clamping base stamp for direct injection of multi-layered shoe soles | |
| KR200170475Y1 (en) | molding device for manufacturing middle-sole of shoe | |
| SU1440475A1 (en) | Apparatus for manufacturing multilayer shoe soles (including those connected integral with the shoe upper) from viscous ,particularly, plastic materials | |
| US1885337A (en) | Apparatus for molding footwear | |
| JPS6332614B2 (en) | ||
| GB2255308A (en) | Method and apparatus for moulding soles onto shoe uppers | |
| EP1262296B1 (en) | Filtration structure for the pad of a press for producing single-layer cement tiles with filtration surfaces and apparatus for replacing such filtration surfaces | |
| US4583928A (en) | Apparatus for rebuilding portions of molded elements, particularly vehicle tires | |
| CN219095751U (en) | Even group sole injection mold and injection molding machine convenient to location | |
| US3172157A (en) | Mold for manufacture of footwear | |
| JPH02214620A (en) | Split mold for molding vulcanization | |
| CN212021426U (en) | Sole rapid prototyping's stamping device is used in leather shoes processing | |
| US2909807A (en) | Automatic rotatory type machine for making shoes or boots rubber-soled with heat and compression | |
| JPS6034362B2 (en) | Manufacturing method for injection molded shoes | |
| CN214419313U (en) | EVA (ethylene-vinyl acetate) primary die | |
| CN212072785U (en) | Secondary forming EVA mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19850702 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LIMBACH, PAUL Inventor name: GONCHAR, HOWARD, A. Inventor name: POTASH, MELVIN |