WO2024030094A1 - Thermoplastic protective shoe toe providing easy assembly - Google Patents
Thermoplastic protective shoe toe providing easy assembly Download PDFInfo
- Publication number
- WO2024030094A1 WO2024030094A1 PCT/TR2023/050374 TR2023050374W WO2024030094A1 WO 2024030094 A1 WO2024030094 A1 WO 2024030094A1 TR 2023050374 W TR2023050374 W TR 2023050374W WO 2024030094 A1 WO2024030094 A1 WO 2024030094A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shoe toe
- protective shoe
- thermoplastic
- layer
- toe
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 27
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 19
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 210000003371 toe Anatomy 0.000 claims description 32
- 238000009728 tailored fiber placement Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 238000009958 sewing Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009956 embroidering Methods 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/08—Heel stiffeners; Toe stiffeners
- A43B23/081—Toe stiffeners
- A43B23/086—Toe stiffeners made of impregnated fabrics, plastics or the like
- A43B23/087—Toe stiffeners made of impregnated fabrics, plastics or the like made of plastics
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C13/00—Wear-resisting attachments
- A43C13/14—Special attachments for toe-caps; Protecting caps for toe-caps
Definitions
- the present invention relates to the protective shoe toe, in particular in work shoes.
- This protective shoe toe which is described as the shoe toe in shoe production, is sewn or adhered in various ways in shoes.
- TFP tailored fiber placement
- advantages such as processing various fibers such as glass, aramid, carbon and ceramic fibers, embroidering a plurality of layers in the same area in accordance with the preforming of the composite component, making maximum use of reinforcing fibers, low production cost, reproducibility etc.
- the shoe toe is produced in aluminum or similar metal alloy materials in the state of the art. This situation causes the shoes to have extra weight and thus makes the work shoes non-ergonomic.
- thermoset composite In addition, shoe toes made of thermoset composite are produced in the state of the art. These products, which are lighter than metal, require extra labor at the point of adhering/mounting them to the shoes. In addition, the protective shoe toe made of thermoset composite cannot be recycled.
- the aim of the present invention is to protect the user's toes against possible impacts and injuries by forming thermoplastic and plastic layers.
- Another aim of the present invention is to comprise of a composite shell and at least one rigid plastic with variable rigidity and at least one elastic layer thereon.
- Another aim of the present invention is to be recyclable and easy to assemble with the help of its thermoplastic structure.
- the inventive thermoplastic protective shoe toe providing easy assembly is manufactured in a three-layer structure. It is a composite shell made of recyclable material since it is thermoplastic, and two plastic layers that will come on top of it, with variable rigidity.
- the first of the plastic layers mentioned in the invention is preferably the rigid plastic layer, and the second is the elastic plastic layer.
- Assembling the inventive shoe toe with said rigid plastic and elastic plastic layers is reduced to a single process.
- Rigid plastic and elastic plastic are injected on the thermoplastic in an injection press, preferably by back injection method.
- the protective shoe toe (10) is a shock absorber that is developed to protect the user's toes from impacts in shoes and especially in work shoes.
- the protective shoe toe (10) comprises at least one centering point (11).
- Said centering point (11) is essentially an opening, slot or channel-like point.
- the protective shoe toe (10) comprises at least one thermoplastic shell (20).
- Said thermoplastic shell (20) is mainly produced by hot forming under pressure of the preform prepared from carbon fiber structures processed in layers with thermoplastic yarns in the TFP (tailored fiber placement) method. After the preform is placed in the female mold, integrity is ensured by closing the male mold. After the mold is heated up to 310°C and then after 600-780 s of printing time has passed, the mold is cooled and cold opened. The preform becomes a rigid form by taking the shape of the mold.
- the thermoplastic shell (20) provides lightness and rigidity simultaneously with increased impact resistance by fiber methods.
- the protective shoe toe (10) comprises at least one rigid layer (30).
- Said rigid layer (30) is preferably plastic.
- the rigid layer (30) is a surface provided all around on the thermoplastic shell (20) in the injection press.
- the rigid layer (30) comprises at least one connecting section (31).
- Said connecting section (31) is essentially a protrusion with L-like geometry on the lower part of the protective shoe toe (10) so as to allow the same to be connected with the sole of the shoe.
- the protective shoe toe (10) comprises at least one rigid layer (40).
- Said elastic layer (40) is essentially plastic and is a partially skirt-like structure formed on the rigid layer (30).
- the elastic layer (40) comprises at least one folding opening (41).
- Said folding opening (41) is an opening formed in at least one of the long sides of the elastic layer (40) relative to the referencing point (42).
- the folding opening is provided in a conical form in the possible embodiment of the invention.
- the protective shoe toe (10) consists of a three-layer compact structure as the thermoplastic shell (20), the hard layer (30) and the elastic layer (40) with all this configuration.
- the protective shoe toe (10) which has increased impact resistance with fiber orientations, is recyclable and lightened, is mounted on the shoe in a single operation with the help of the elastic layer (40) and the rigid layer (30) produced in a compact manner.
Abstract
The present invention relates to a thermoplastic shoe toe that provides ease of assembly, consisting of a composite shell made of recyclable material, and two plastic layers with varying hardness thereon, due to the fact that the protective shoe toe is three-layered and thermoplastic, especially in work shoes.
Description
DESCRIPTION
THERMOPLASTIC PROTECTIVE SHOE TOE PROVIDING EASY ASSEMBLY
FIELD OF THE INVENTION
The present invention relates to the protective shoe toe, in particular in work shoes. This protective shoe toe, which is described as the shoe toe in shoe production, is sewn or adhered in various ways in shoes.
STATE OF THE ART
TFP (tailored fiber placement) is a production method with advantages such as processing various fibers such as glass, aramid, carbon and ceramic fibers, embroidering a plurality of layers in the same area in accordance with the preforming of the composite component, making maximum use of reinforcing fibers, low production cost, reproducibility etc.
The shoe toe is produced in aluminum or similar metal alloy materials in the state of the art. This situation causes the shoes to have extra weight and thus makes the work shoes non-ergonomic.
In addition, shoe toes made of thermoset composite are produced in the state of the art. These products, which are lighter than metal, require extra labor at the point of adhering/mounting them to the shoes. In addition, the protective shoe toe made of thermoset composite cannot be recycled.
The file numbered US2004009337A1 regarding the subject in the state of the art relates to a resin safety protective shoe toe made of fiber-reinforced thermoplastic resin, relates to a shoe toe that adapts to the wearer's foot by forming the curved surface with different curvatures and the front end part to rise perpendicular to each other.
DESCRIPTION OF THE INVENTION
The aim of the present invention is to protect the user's toes against possible impacts and injuries by forming thermoplastic and plastic layers.
Another aim of the present invention is to comprise of a composite shell and at least one rigid plastic with variable rigidity and at least one elastic layer thereon.
Another aim of the present invention is to be recyclable and easy to assemble with the help of its thermoplastic structure.
Description of the Figures
Figure 1. Bottom view of the protective shoe toe
Figure 2. Isometric view of the protective shoe toe
Figure 3. Back view of the protective shoe toe
Figure 4. Front view of the protective shoe toe
Figure 5. Section view of the protective shoe toe
Reference List
10 Protective shoe toe
1 1 Centering point
20 Thermoplastic shell
30 Rigid layer
31 Connecting section
40 Elastic layer
41 Folding opening
42 Referencing point
DETAILED DESCRIPTION OF THE INVENTION
In this detailed description, the preferred embodiments of the inventive protective shoe toe (10) are described by means of examples only for clarifying the subject matter.
The inventive thermoplastic protective shoe toe providing easy assembly is manufactured in a three-layer structure. It is a composite shell made of recyclable material since it is thermoplastic, and two plastic layers that will come on top of it, with variable rigidity.
The first of the plastic layers mentioned in the invention is preferably the rigid plastic layer, and the second is the elastic plastic layer. Assembling the inventive shoe toe with said rigid plastic and elastic plastic layers is reduced to a single process. Rigid plastic and elastic plastic are injected on the thermoplastic in an injection press, preferably by back injection method.
The protective shoe toe (10) is a shock absorber that is developed to protect the user's toes from impacts in shoes and especially in work shoes. The protective shoe toe (10) comprises at least one centering point (11). Said centering point (11) is essentially an opening, slot or channel-like point. The protective shoe toe (10) comprises at least one thermoplastic shell (20). Said thermoplastic shell (20) is mainly produced by hot forming under pressure of the preform prepared from carbon fiber structures processed in layers with thermoplastic yarns in the TFP (tailored fiber placement) method. After the preform is placed in the female mold, integrity is ensured by closing the male mold. After the mold is heated up to 310°C and then after 600-780 s of printing time has passed, the mold is cooled and cold opened. The preform becomes a rigid form by taking the shape of the mold. The thermoplastic shell (20) provides lightness and rigidity simultaneously with increased impact resistance by fiber methods.
The protective shoe toe (10) comprises at least one rigid layer (30). Said rigid layer (30) is preferably plastic. The rigid layer (30) is a surface provided all around on the
thermoplastic shell (20) in the injection press.
The rigid layer (30) comprises at least one connecting section (31). Said connecting section (31) is essentially a protrusion with L-like geometry on the lower part of the protective shoe toe (10) so as to allow the same to be connected with the sole of the shoe.
The protective shoe toe (10) comprises at least one rigid layer (40). Said elastic layer (40) is essentially plastic and is a partially skirt-like structure formed on the rigid layer (30). The elastic layer (40) comprises at least one folding opening (41). Said folding opening (41) is an opening formed in at least one of the long sides of the elastic layer (40) relative to the referencing point (42). The folding opening is provided in a conical form in the possible embodiment of the invention.
The protective shoe toe (10) consists of a three-layer compact structure as the thermoplastic shell (20), the hard layer (30) and the elastic layer (40) with all this configuration. The protective shoe toe (10), which has increased impact resistance with fiber orientations, is recyclable and lightened, is mounted on the shoe in a single operation with the help of the elastic layer (40) and the rigid layer (30) produced in a compact manner.
Claims
1. Protective shoe toe (10) that is developed to protect the user's toes from impacts in shoes and especially in work shoes, characterized in that, it comprises of the following; at least one recyclable thermoplastic shell (20), at least one rigid layer (30), which is preferably plastic, and includes at least one connecting section (31) such that it can be mounted in a single operation by sewing the same to the shoe or by binding the same in various ways, at least one elastic layer (40) formed on said rigid layer (30).
2. Protective shoe toe (10) according to claim 1, characterized in that; it comprises a thermoplastic shell (20) produced by hot forming the preform under pressure, which is prepared from carbon fiber structures processed in layers with thermoplastic yarns in the TFP (tailored fiber placement) method.
3. Protective shoe toe (10) according to claim 1, characterized in that; the rigid layer (30) comprises at least one centering point (11) such as an opening, slot or channel.
4. Protective shoe toe (10) according to claim 1, characterized in that; the elastic layer (40) comprises at least one folding opening (41) which ensures that it is preferably conical in shape, formed with respect to the referencing point (42).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2022/012292 | 2022-08-03 | ||
| TR2022012292 | 2022-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024030094A1 true WO2024030094A1 (en) | 2024-02-08 |
Family
ID=89849395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2023/050374 WO2024030094A1 (en) | 2022-08-03 | 2023-04-19 | Thermoplastic protective shoe toe providing easy assembly |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2024030094A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005006997A (en) * | 2003-06-20 | 2005-01-13 | Simon Corp | Toe cap supporter for toe box of safety shoe |
| JP2006192188A (en) * | 2005-01-17 | 2006-07-27 | Kishimoto Sangyo Co Ltd | Toe box for safety shoe and safety shoe using the same |
| JP2007089723A (en) * | 2005-09-28 | 2007-04-12 | Ykk Corp | Safety shoe toe box |
-
2023
- 2023-04-19 WO PCT/TR2023/050374 patent/WO2024030094A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005006997A (en) * | 2003-06-20 | 2005-01-13 | Simon Corp | Toe cap supporter for toe box of safety shoe |
| JP2006192188A (en) * | 2005-01-17 | 2006-07-27 | Kishimoto Sangyo Co Ltd | Toe box for safety shoe and safety shoe using the same |
| JP2007089723A (en) * | 2005-09-28 | 2007-04-12 | Ykk Corp | Safety shoe toe box |
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| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
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