GB2541188A - Method for manufacturing a shoe sole with multi-material spikes - Google Patents

Method for manufacturing a shoe sole with multi-material spikes Download PDF

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Publication number
GB2541188A
GB2541188A GB1514050.2A GB201514050A GB2541188A GB 2541188 A GB2541188 A GB 2541188A GB 201514050 A GB201514050 A GB 201514050A GB 2541188 A GB2541188 A GB 2541188A
Authority
GB
United Kingdom
Prior art keywords
spike
sole
shoe sole
cavity
manufacturing
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Withdrawn
Application number
GB1514050.2A
Other versions
GB201514050D0 (en
Inventor
Yang Teng-Jen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1514050.2A priority Critical patent/GB2541188A/en
Publication of GB201514050D0 publication Critical patent/GB201514050D0/en
Publication of GB2541188A publication Critical patent/GB2541188A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/16—Studs or cleats for football or like boots
    • A43C15/161—Studs or cleats for football or like boots characterised by the attachment to the sole
    • 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
    • B29D35/122—Soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/24—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
    • A43B13/26—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions projecting beyond the sole surface
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C13/00—Wear-resisting attachments
    • A43C13/04—Cleats; Simple studs; Screws; Hob-nails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • 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
    • 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
    • B29D35/0054—Producing footwear by compression moulding, vulcanising or the like; Apparatus therefor
    • B29D35/0063—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
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • 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
    • B29D35/14—Multilayered parts
    • 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
    • B29D35/14—Multilayered parts
    • B29D35/142—Soles
    • 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
    • B29D35/14—Multilayered parts
    • B29D35/148—Moulds or apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

A method for manufacturing a shoe sole with multi-material spikes which comprises first forming the multi material spike 30 using a mould (20, fig. 2B), which includes an upper mould (21, fig. 2B) and a lower mould (22, fig. 2B) that are assembled to form a first spike cavity (23, fig. 2B), the lower mould (22, fig. 2B) is formed with a first filling hole (220, fig. 2B) which is in communication with the first spike cavity (23, fig. 2B), a first material R is placed in the first spike cavity (23, fig. 2B) and then a second material T is introduced into the cavity (23, fig. 2B) via the filling hole (220, fig. 2B) to form a multi-material spike. The sole (60, fig. 2E) is then formed using a first mould 40, which includes a cavity 41 for the spike 30; a second mould 50, which includes a second filling hole 51, assembles with the first mould 40 to form a sole cavity 42; sole material is introduced into the sole cavity through the second filling hole 51 and then the multi-material spike 30 is adhered to the sole material (T1, fig. 2E) by hot melting. The multi-material spike is provided with a plurality of first spike portions (31, fig. 4) and a plurality of second spike portions (32, fig. 4).

Description

METHOD FOR MANUFACTURING A SHOE SOLE WITH MULTI-MATERIAL SPIKES
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to a method for manufacturing a shoe sole, and more particularly to a method for manufacturing a shoe sole with multi-material spikes.
Related Prior Art
Shoe spikes are normally provided on the golf shoe sole in order to provide shock absorption and improve grip. As shown in Fig. 1, a shoe sole 10 is provided with a plurality of metal spikes 11 which are screwed onto the shoe sole 10, and then the shoe sole 10 is fixed to a shoe (not shown). However, this way of manufacturing is not only complicated but also is not suitable for mass production. Besides, torque will be produced onto the spikes 11 to cause rotation of the spikes 11 when a user wearing the shoes walks, as a result, the spikes 11 are likely to get loose from the shoe sole 10 after a certain period of time. Furthermore, metal nuts have to be embedded in the shoe sole 10 so that the spikes 11 can be screwed onto the shoe sole 10, which is likely to cause water seepage into the shoe sole 10.
Therefore, a method for manufacturing a shoe sole with plastic spikes was proposed, wherein the plastic spikes are made by plastic injection molding in order to reduce material cost while improving manufacturing efficiency. However, the shoe sole still has to be embedded with metal nuts during injection molding to allow for screwing of plastic spikes into the shoe sole. Therefore, the water seepage problem remains unsolved. Besides, the positions where the metal nuts are embedded are fixed and unchangeable, which means the distances between the spikes cannot be adjusted to meet different requirements of the user’s.
Of course, there is another type of shoe sole with spikes, wherein the shoe sole is made of rubber while the spikes are made of plastic. Since the conditions and ways of forming the rubber and the plastic are different, the rubber and plastic have to be manufactured differently and then glued together. However, if the glue is not evenly applied, which will adversely affect the connection stability between shoe sole and the spikes.
Therefore, the configuration and structure of the existing spikes are limited due to the methods for making the spikes are the same. The spikes need to be screwed into the shoe sole and therefore have to be rotated, so that the spikes can be taken out during demolding process. However, the method for making the spikes has a great influence on the shape design of the spikes due to the fact that the spikes have to be arranged in a concentric circular array. Besides, in order for the spikes to be screwed into the shoe sole, the nuts must be embedded into the shoe sole before injection molding, which, however, will increase the thickness of the shoe sole.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
SUMMARY
One objective of the present invention is to provide a method for manufacturing a shoe sole with multi-material spikes, which is capable of solving the problem of the conventional shoe sole, wherein the spikes are assembled onto the shoe sole, the conventional shoe sole requires complicated manufacturing process, and has the problem of water seepage, bad stability and the positions of the conventional spikes are unadjustable.
Another objective of the present invention is to provide a method for manufacturing a shoe sole with multi-material spikes, wherein the multi-material spike is made of thermoplastic polyurethane and rubber material to improve grip.
Yet another objective of the present invention is to provide a method for manufacturing a shoe sole with multi-material spikes, which is capable of solving the disadvantage of the conventional shoe sole that the spikes are arranged in a concentric circular array, and the irregular shape of the spikes is unsuitable for mass production. The method of the present invention requires no embedding of nuts into the sole, therefore has no disadvantage of water seepage.
To achieve the above objectives, a method for manufacturing a shoe sole with multi-material spikes in accordance a preferred embodiment of the present invention comprises the following steps: a step (a) including providing a spike-forming mold which includes an upper mold and a lower mold, wherein the upper and lower molds are closed to define a first spike cavity, the lower mold is formed with a first filling hole which is in communication with the first spike cavity, different materials are placed in the first spike cavity to form the multi-material spike; a step (b) including providing a first mold which includes a second spike cavity; a step (c) including providing a second mold which includes a second filling hole; a step (d) including assembling the first and second molds, together to form a sole cavity, wherein the multi-material spike is placed into the sole cavity, a sole material is filled into the sole cavity through the second filling hole which is in communication with the sole cavity, and then the multi-material spike and the sole material are adhered to each other by hot melting; and a step (e) including opening the first and second molds, so as to form a shoe sole which is integrally formed with the multi-material spike.
Preferably, the multi-material spike is provided with a plurality of first spike portions and a plurality of second spike portions, and the first and second spike portions are made of different materials.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is an exploded view of the conventional shoe sole and spike;
Fig. 2 A is a first illustrative view of a method for manufacturing a shoe sole with multi-material spikes of a preferred embodiment of the present invention;
Fig. 2B is a second illustrative view of the method for manufacturing a shoe sole with multi-material spikes of a preferred embodiment of the present invention;
Fig. 2C is a third illustrative view of the method for manufacturing a shoe sole with multi-material spikes of a preferred embodiment of the present invention;
Fig. 2D is a fourth illustrative view of the method for manufacturing a shoe sole with multi-material spikes of a preferred embodiment of the present invention;
Fig. 2E is a fifth illustrative view of the method for manufacturing a shoe sole with multi-material spikes of a preferred embodiment of the present invention;
Fig. 3A is a first illustrative view of the method for manufacturing a shoe sole with multi-material spikes of another preferred embodiment of the present invention;
Fig. 3B is a second illustrative view of the method for manufacturing a shoe sole with multi-material spikes of another preferred embodiment of the present invention;
Fig. 3 C is a third illustrative view of the method for manufacturing a shoe sole with multi-material spikes of another preferred embodiment of the present invention;
Fig. 3D is a fourth illustrative view of the method for manufacturing a shoe sole with multi-material spikes of another preferred embodiment of the present invention;
Fig. 3E is a fifth illustrative view of the method for manufacturing a shoe sole with multi-material spikes of another preferred embodiment of the present invention;
Fig. 4 is a perspective view of a multi-material spike of a preferred embodiment of the present invention;
Fig. 5 is a perspective view of a multi-material spike of another preferred embodiment of the present invention;
Fig. 6 is an illustrative view of a shoe sole which is integrally formed with multi-material spikes of a preferred embodiment of the present invention;
Fig. 7 is a cross sectional view taken along the line 7-7 of Fig. 6; and
Fig. 8 is a cross sectional view taken along the line 8-8 of Fig. 6.
DETAILED DESCRIPTION
The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purposes of illustration only, the preferred embodiment in accordance with the present invention.
Referring to Figs. 2-8, a method for manufacturing a shoe sole with multi-material spikes of a preferred embodiment of the present invention comprises the following steps:
Step (a), as shown in Fig 2, 2A, 2B, 3A and 3B, includes providing a spike-forming mold 20 which includes an upper mold 21 and a lower mold 22. Between the upper and lower molds 21, 22 is formed a first spike cavity 23, then a rubber material R is filled into the first spike cavity, and the lower mold 22 is formed with a first filling hole 220 which is in communication with the first spike cavity 23.
In the step (a), the method of the present invention allows different shaped rubber materials R to be placed in different positions in the first spike cavity 23, as shown in Figs. 2A and 3A, then a thermoplastic polyurethane T is filled into the first spike cavity 23 through the first filling hole 220 (as shown in Figs. 2B and 3B), and in the first spike cavity 23 the thermoplastic polyurethane T and the rubber material R are jointed to each other. However, the thermoplastic polyurethane T and the rubber material R cannot be hot melted (this is a well known technique and will therefore not be explained in detail), the conjunction surface between the thermoplastic polyurethane T and the rubber material R needs to be applied with glue (not shown) and then is heated so that the thermoplastic polyurethane T and the rubber material R can be glued to each other. Then, the upper and lower molds 21, 22 are opened to obtain a multi-material spike 30 which is provided with a plurality of first spike portions 31 and second spike portions 32, as shown in Figs. 4 and 5.
Then, as shown in Figs. 2A, 2B and 4, the first spike portions 31 of the spike 30 are made of the rubber material R and each includes a plurality of gluing portions 310, while the second spike portions 32 are made of the thermoplastic polyurethane T. As shown in Figs. 3A, 3B and 5, the first spike portions 31 of the spike 30 are made of the thermoplastic polyurethane T, while the second spike portions 32 are made of the rubber material R and each includes a plurality of gluing portions 320. The gluing portions 310, 320 improve the adhering force between the thermoplastic polyurethane T and the rubber material R.
Referring then to Figs. 2C, 2D, 3C and 3D, a step (b) includes providing a first mold 40 which includes a second spike cavity 41; a step (c) includes providing a second mold 50 which includes a second filling hole 51. A step (d) includes assembling the first and second molds 40, 50 together to form a sole cavity 42, and the multi-material spike 30 is placed into the sole cavity 42. A sole material T1 (which is thermoplastic polyurethane T) is filled into the sole cavity 42 through the second filling hole 51 which is in communication with the sole cavity 42, and then the multi-material spike 30 and the sole material T1 are adhered to each other by hot melting. The gluing portions 310, 320 improve the adhering force between the sole material T1 (which is thermoplastic polyurethane T) and the rubber material R of the shoe sole 60.
Referring then to Figs. 2E and 3E, a final step (e) includes opening the first and second molds 40, 50 after a certain period of time, so that the sole material T1 in the sole cavity 42 is formed into a shoe sole 60 which is integrally formed with the multi-material spike 30.
It is learned from the steps (a) to (e) that the multi-material spike 30 is preformed and the first and second spike portions 31,32 are made of two different materials, for example, the first and second spike portions 31, 32 in the step (a) are made of rubber material R and thermoplastic polyurethane T, respectively. Then, the multi-material spike 30 is positioned in the second spike cavity 41 of the first mold 40, and the sole material T1 is injected into the sole cavity 42 to form the shoe sole 60 with the multi-material spike 30 by injection molding process.
Referring then to Figs. 6-8, distances between the neighboring first and second spike portions 31, 32 of the multi-material spike 30 are different. For example, as shown in Fig. 6, the first and second spike portions 31, 32 at the outer edge of the shoe sole 60 are spaced at a distance narrower than that between the first and second spike portions 31, 32 at the inner edge of the shoe sole 60. The materials of the first and second spike portions 31, 32 can be chosen as desired. For example, the rubber material R is wear resisting and anti-skipping, while the thermoplastic polyurethane T is elastic in addition to being wear resisting and anti-skipping. Besides, since the first and second spike portions 31, 32 are spaced at different distances, which can enhance grip and improve balance of the wearer.

Claims (9)

WHAT IS CLAIMED IS:
1. A method for manufacturing a shoe sole with multi-material spikes, comprising: (a) providing a spike-forming mold which includes an upper mold and a lower mold, wherein the upper and lower molds are assembled to form a first spike cavity therebetween, and the lower mold is formed with a first filling hole which is in communication with the first spike cavity, and then providing different materials in the first spike cavity to form a multi-material spike; (b) providing a first mold which includes a second spike cavity; (c) providing a second mold which includes a second filling hole; (d) assembling the first and second molds, together to form a sole cavity, placing the multi-material spike into the sole cavity, providing a sole material into the sole cavity through the second filling hole which is in communication with the sole cavity, and then adhering the multi-material spike to the sole material by hot melting; and (e) opening the first and second molds, so that the sole material in the sole cavity is formed into a shoe sole which is integrally formed with the multi-material spike, and the multi-material spike is provided with a plurality of first spike portions and a plurality of second spike portions, and a distance between the first and second spike portions at an outer edge of the shoe sole is different from that between the first and second spike portions at an inner edge of the shoe sole.
2. The method for manufacturing the shoe sole as claimed in claim 1, wherein the sole material is thermoplastic polyurethane.
3. The method for manufacturing the shoe sole as claimed in claim 1, further comprising the step of placing a rubber material into the first spike cavity, and then providing thermoplastic polyurethane into the first spike cavity through the first filling hole to be adhered to the rubber material in the step (a).
4. The method for manufacturing the shoe sole as claimed in claim 3, wherein the rubber materials is placed in different positions in the first spike cavity.
5. The method for manufacturing the shoe sole as claimed in claim 1, wherein the first and second spike portions at the outer edge of the shoe sole are spaced at a distance narrower than the distance between the first and second spike portions at the inner edge of the shoe sole.
6. The method for manufacturing the shoe sole as claimed in claim 5, wherein the first spike portions are made of thermoplastic polyurethane, and the second spike portions are made of rubber material.
7. The method for manufacturing the shoe sole as claimed in claim 5, wherein the second spike portions are made of thermoplastic polyurethane, and the first spike portions are made of rubber material.
8. A method for manufacturing a shoe sole substantially as hereinbefore described with reference to Figures 2Ato 8 of the accompanying drawings.
9. A shoe sole made by the method of Claim 1.
GB1514050.2A 2015-08-10 2015-08-10 Method for manufacturing a shoe sole with multi-material spikes Withdrawn GB2541188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1514050.2A GB2541188A (en) 2015-08-10 2015-08-10 Method for manufacturing a shoe sole with multi-material spikes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1514050.2A GB2541188A (en) 2015-08-10 2015-08-10 Method for manufacturing a shoe sole with multi-material spikes

Publications (2)

Publication Number Publication Date
GB201514050D0 GB201514050D0 (en) 2015-09-23
GB2541188A true GB2541188A (en) 2017-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1514050.2A Withdrawn GB2541188A (en) 2015-08-10 2015-08-10 Method for manufacturing a shoe sole with multi-material spikes

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120266490A1 (en) * 2011-04-21 2012-10-25 Nike, Inc. Method For Making A Cleated Plate
WO2014123944A1 (en) * 2013-02-05 2014-08-14 Nike, Inc. Cleats, cleated sole structures, molds, and molding methods for in-molding articles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120266490A1 (en) * 2011-04-21 2012-10-25 Nike, Inc. Method For Making A Cleated Plate
WO2014123944A1 (en) * 2013-02-05 2014-08-14 Nike, Inc. Cleats, cleated sole structures, molds, and molding methods for in-molding articles

Also Published As

Publication number Publication date
GB201514050D0 (en) 2015-09-23

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