Shoe upper, its manufacturing process, and a shoe incorporating such an upper
The shoe upper design with a lining extending beyond the facing and using heat-fusible seams allows for easy disassembly and reuse of components, addressing the challenge of repair and customization while reducing material costs.
Patent Information
- Application Number
- FR2023015287
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2043-12-26
AI Technical Summary
Existing shoe uppers do not facilitate easy repair and customization, leading to high raw material costs and inefficiencies in refurbishment.
A shoe upper design featuring a rear part with a lining that extends beyond the facing and overlaps the quarters, forming a thermal screen and guide for easy disassembly, using heat-fusible seams for seamless separation.
Enables easy disassembly and reuse of shoe components, reducing material costs and allowing for customizable designs without damaging the quarters.
Smart Images
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Abstract
Description
Title of the invention: Shoe upper, its manufacturing process and shoe incorporating such an upper
[0001] The present invention relates to a shoe upper, its manufacturing process and a shoe incorporating such an upper.
[0002] It relates in particular to a shoe upper comprising at least a front part, a rear part called a heel counter, and two quarters arranged opposite each other and each extending from the front part to the rear part, each quarter being coupled by a connection to the rear part, the connection comprising at least one seam, the rear part of the upper comprising, at least locally, from the outside towards the inside of the upper, a facing and a lining called an inner lining assembled to said facing and at least partially overlapping said facing.
[0003] It should be noted that the inside of the upper corresponds, obviously, to the part of the upper capable of coming into contact with the foot when the shoe is worn.
[0004] A shoe upper of the aforementioned type is known. Users want to be able to repair their shoes more easily and to personalize their shoes. At the same time, shoe manufacturers are looking for technical solutions to facilitate shoe refurbishment, particularly to reduce raw material costs.
[0005] One object of the invention is to provide a shoe upper whose design allows both the user and manufacturer requirements to be met.
[0006] To this end, the invention relates to a shoe upper comprising at least a front part, a rear part called a heel counter, and two quarters arranged opposite each other and each extending from the front part to the rear part, each quarter being connected to the rear part by a joint, the joint comprising at least one seam, the rear part of the upper comprising, at least locally, from the outside towards the inside of the upper, a facing and a lining called the inner lining assembled to said facing and at least partially overlapping said facing, characterized in that for each quarter,The lining of the rear section extends beyond the facing of the rear section and the connection of the rear section to said quarter, and partially overlaps the exterior of said quarter to form a thermal screen providing at least partial protection to said quarter and / or a guide to aid in the dismantling of the rear section.
[0007] The connection of the rear part to a quarter is at least a connection of the lining of the rear part to said quarter, this connection being able to further associate the lining of the The design of the shoe's rear section and its connection to the quarters allows for easy removal of the rear section, which is a wear or customization component. The fact that a portion of the lining extends beyond the rear section's facing, overlapping each quarter, protects each quarter during disassembly, particularly when a hot air stream is used. Furthermore, the design of the connection between the rear section and each quarter allows for easy separation of the rear section from the quarters, with the connection acting as a guide. Thus, the quarters can be reused to create a new upper, the rear section of which may or may not be aesthetically identical to the one previously removed.A new upper can thus be designed at a reduced cost. Furthermore, the fact that the lining extends beyond the facing of the back section gives this protruding part of the lining a edging-like appearance.
[0008] According to one embodiment of the invention, the seam or at least one of the seams of the connection, which is at least one connection per seam, from each quarter to the rear part comprises at least one heat-fusible thread. Thus, heat can be used to destroy the connection without risk of damaging the quarters due to the design of the connection between the rear part and the quarters.
[0009] According to one embodiment of the invention, the upper delimiting an insertion opening for a foot, the or at least one of the seams of the connection of each quarter to the rear part extends from said opening towards an area of the upper intended to be coupled to a sole.
[0010] According to one embodiment of the invention, the facing and the lining of the back part are joined together at least by a seam called the assembly seam and the or at least one of the assembly seams of the facing of the back part and of the lining of the back part extends parallel to the or one of the seams of the connection of each quarter to the back part.
[0011] According to one embodiment of the invention, the front part of the stem comprises at least one end and one end cap. The end comprises, at least locally, from the outside towards the inside of the stem, a facing and an inner lining assembled to said facing and at least partially overlapping said facing. The end is joined to the end cap by a connection comprising at least one seam, and the lining of said end extends beyond the facing of the end and the connection of the end to the end cap and partially overlaps said end cap on the outside to form a thermal screen providing at least partial protection to said end cap and / or a guide to aid in the disassembly of said end. The connection of the end to the end cap is at least one connection of the lining of the end to the end cap, this connection being able to further associate the lining from tip to tip facing. The design of the front part connection similarly allows for easy disassembly and replacement of the tip, which constitutes the wear part of the front part of the shaft, while retaining the vamp and quarters, which can be reused for the design of a new shaft with a tip that is aesthetically identical or not to the one previously removed.
[0012] According to one embodiment of the invention, the seam or at least one of the seams of the joint, which is at least one seam, from the end to the flap, comprises at least one heat-fusible thread. Thus, heat can be used to destroy the joint without risk of damaging the flap due to the design of the joint between the end and the flap.
[0013] The invention also relates to a shoe comprising at least an upper and a sole, characterized in that the upper conforms to that described above.
[0014] The invention further relates to a method for manufacturing a shoe upper comprising at least a front part, a rear part called a heel counter, and two quarters arranged opposite each other and each extending from the front part to the rear part, said method comprising, for each quarter, a step of coupling said quarter by a connection to the rear part, the connection comprising at least one seam, the rear part of the upper comprising, at least locally, from the outside towards the inside of the upper, a facing and a lining called the inner lining assembled to said facing and at least partially overlapping said facing, characterized in that, at the end of the coupling step, for each quarter,The lining of the rear section extends beyond the facing of the rear section and the connection of the rear section to said quarter, and partially overlaps the exterior of said quarter to form a thermal screen providing at least partial protection to said quarter and / or a guide to aid in the dismantling of the rear section.
[0015] According to one embodiment of the method, the rod conforms to what is described above. Brief description of the drawings
[0016] The invention will be better understood upon reading the following description of exemplary embodiments, with reference to the accompanying drawings in which:
[0017] [Fig-1] represents a perspective view of a rod according to the invention in the unassembled state of at least a part of the elements constituting it;
[0018] [Fig.2] represents a perspective view of a rod according to the invention in the assembled state of at least a part of the elements constituting it;
[0019] [Fig.3] represents a perspective view of a shoe incorporating an upper according to the invention;
[0020] [Fig.4] represents a partial schematic cross-sectional view of the connection between a district and the rear part;
[0021] [Fig.5] represents a partial schematic front view of the connection between a quarter and the rear part.
[0022] As illustrated in [Fig.1], the invention relates to a shoe upper 1 comprising a front part 2, a rear part 3 called a heel counter and two quarters 4 arranged opposite each other and each extending from the front part towards the rear part 3.
[0023] The stem 1 defines an opening 6 through which the foot can be inserted inside the stem in the space between the quarters 4. The interior of the stem 1 is formed by the part of the stem intended to be in contact with the foot in the inserted state of the foot in the stem.
[0024] This upper 1 is intended to be assembled to a sole 12 to form a shoe 13 conforming to [Fig. 3]. Each quarter 4 may be made of leather or fabric. The rear portion 3 comprises, at least locally, from the outside towards the inside of the upper 1, a facing 31 and a lining 32, referred to as the inner lining, assembled to said facing 31 and at least partially overlapping the facing 31. The facing 31 may be made of leather or fabric. The same applies to the lining 32.
[0025] Each quarter 4 is coupled by a connection 5 to the back part 3, in particular at least to the lining 32 of the back part 3. In the example shown in [Fig. 4], each quarter 4 is coupled by a connection 5 to the lining 32, this connection 5 also providing a connection from the lining 32 of the back part 3 to the facing 31 of the back part 3. This connection 5 includes at least one seam 51. As illustrated in Figures 4 and 5, for each quarter 4, the lining 32 of the back part 3 extends beyond the facing 31 of the back part 3 and beyond the connection 5 of the back part 3 to said quarter 4. This part of the lining 32 of the back part 3, which extends beyond the facing 31 of the back part 3 and beyond the connection 5 of the back part 3 to said quarter 4, called the protruding part of the lining, is represented by + in [Fig.5].
[0026] This part of the lining 32 of the rear part 3 projecting from the facing 31 of the rear part 3 partially overlaps the outside of the quarter 4 to form a thermal screen for at least partial protection of the quarter 4 and / or a guide to aid in dismantling the rear part 3, as illustrated in figures 4 and 5.
[0027] This projecting portion of the lining 32 of the rear section 3 forms a border of the facing 31 of the rear section 3. This projecting portion of the lining 32 of the rear section 3 can, like a flap, be moved away from or closer to a quarter to which it is coupled by the connection 5. This connection 5 of the rear section 3, in particular of the lining 32 of the rear section 3 to the quarter 4, which includes at least one seam, can be made with a heat-fusible sewing thread 511. The advantage of this solution is that it is sufficient to heat said seam 51 from the outside to achieve its destruction of the connection between the rear part 3 and the quarter 4.
[0028] In the example shown in [Fig.2], the connection 5 of each quarter 4 to the rear part 3 includes a seam 51 which extends from the opening 6 of the upper 1 towards an area 7 of the upper 1 intended to be coupled to a sole 12.
[0029] In this embodiment, the facing 31 and the lining 32 of the back part 3 are joined together by at least one seam 8, referred to as the assembly seam. This assembly seam 8 of the facing 31 and the lining 32 of the back part 3 extends parallel to the seam 51 of the connection 5 of each quarter 4 to the back part 3.
[0030] Thus, the seam 51 of the connection 5 of the back part 3, in particular at least of the lining 32 of the back part 3, to the quarter 4, extends between the part of the lining 32 of the back part 3 projecting from the facing 31 of the back part 3, and coming over the quarter 4 to form a border and the seam 8 of assembly of the facing 31 and the lining 32 of the back part 3.
[0031] The breaking of this bond 5 of each quarter 4 to the rear part 3 can be effected by heating the bond 5 using, for example, a fluid flow generated outside the stem 1 and directed from outside the stem 1 towards the stem 1 at the level of said bond 5 to generate a melt or seam. It is then sufficient to pull on the protruding part of the lining 32 covering the quarter 4 to obtain separation of the quarter 4 from the rear part 3.
[0032] In this embodiment, the protruding part of the lining 32 protects the quarter 4 from any damage under the effect of heat. This protruding part of the lining 32, which overlaps the quarter 4, can also, at the moment of breaking the bond 5 by cutting, be used as a protective element for the quarter 4 when a cutting tool, such as scissors, is used to break the bond, as illustrated in [Fig. 5].
[0033] This protruding part of the lining 32 can also be used as a cutting guide when it is moved away from the quarter 4.
[0034] The front part of the stem 1 comprises at least one end 9 and a butt 10. The end 9 comprises, at least locally, from the outside towards the inside of the stem 1, a facing 91 and a lining 92, referred to as the inner lining, assembled to the facing 91. This lining 92 overlaps at least partially the facing 91. The end 9 is assembled to the butt 10 by a connection 11 comprising at least one seam 110. This connection 11, which couples at least the facing 91 of the end 9 to the butt 10, can also couple the facing 91 of the end 9 to the lining 92 of the end 9. The lining 91 of the end 9 extends beyond the facing 91 of the end 9 and beyond the connection 11 from the end 9 to the butt 10.
[0035] This protruding part of the lining 92 of the end 9 partially overlaps the outside of the flap 10 to form a protective thermal screen at least partial of the slap 10 and / or a guide to help with the disassembly of end 9.
[0036] Similar to what has been described above, for the rear portion 3, the seam 110 of the connection 11 of the end 9, in particular at least of the lining 92 from the end 9 to the flap 10, may include a heat-fusible sewing thread. This seam 110 of the connection 11 from the end 9 to the flap 10 extends transversely to the longitudinal axis of the stem 1 and abuts the so-called front edge of the flap 10.
[0037] The facing 91 and the lining 92 of the end 9 can be joined together by a joining seam which preferably extends parallel to the seam 110 of the connection 11 of the end 9, in particular at least from the lining 92 of the end 9, to the flap 10.
[0038] Thus, the seam 110 of the connection 11 between at least the lining 92 of the end 9 and the flap 10 extends between the part of the lining 92 of the end 9 which extends in projection from the facing 91 of the end 9 and comes to cover the flap 10 to form a border and the assembly seam of the facing 91 and the lining 92 of the end 9.
[0039] Again in this embodiment, the breaking of the bond 11 between the end 9, in particular the lining 92 of the end 9, and the flap 10, can be carried out using a flow of hot fluid, such as hot air, generated outside the stem and directed towards the stem and / or using a cutting tool, such as scissors.
[0040] The manufacture of a shoe upper 1, as described above, is carried out easily. Thus, at the coupling stage, for each quarter 4, the lining 32 of the back part 3 extends in projection from the connection 5 of the back part 3 to the quarter 4, and in projection from the facing of the back part 3 and partially overlaps the outside of the quarter 4 to form a thermal screen providing at least partial protection for the quarter 4 and / or a guide to aid in the disassembly of the back part 3.
[0041] Similarly, at the end of the coupling step of the end 9 to the flap 10, the lining 92 of the end 9 extends in projection from the connection 11 of the end 9 to the flap 10 and in projection from the facing 91 of the end 9 and comes into partial overlap on the outside of the flap 10 to form a thermal screen for at least partial protection of the flap 10 and / or a guide to aid in the assembly of the end 9.
[0042] The dismantling of a shoe 13 equipped with an upper 1, as described above, is therefore easily carried out using a hot fluid and / or a cutting tool. The toe 9 and the rear part 3 can be replaced with an aesthetically identical toe and rear part or not, while the quarters and the vamp are retained without having been damaged by the dismantling operations.
Claims
Demands
1. Shoe upper (1) comprising at least a front portion (2), a rear portion (3) called the heel counter, and two quarters (4) arranged opposite each other and each extending from the front portion (2) to the rear portion (3), each quarter (4) being coupled by a connection (5) to the rear portion (3), the connection (5) comprising at least one seam (51), the rear portion (3) of the upper (1) comprising, at least locally, from the outside towards the inside of the upper (1), a facing (31) and a lining (32) called the inner lining assembled to said facing (31) and at least partially overlapping said facing (31), characterized in that for each quarter (4),The lining (32) of the rear part (3) extends beyond the facing (31) of the rear part (3) and the connection (5) of the rear part (3) to said quarter (4) and partially overlaps the outside of said quarter (4) to form a thermal screen providing at least partial protection to said quarter (4) and / or a guide to aid in the dismantling of the rear part (3).
2. Shoe upper (1) according to claim 1, characterized in that the or at least one of the seams (51) of the joint (5), which is at least one joint by stitch, from each quarter (4) to the back part (3) comprises at least one hot-melt stitching thread (511).
3. Shoe upper (1) according to any one of claims 1 or 2, characterized in that the upper (1) delimiting an opening (6) for insertion of a foot, the or at least one of the seams (51) of the connection (5) of each quarter (4) to the rear part (3) extends from said opening (6) towards an area (7) of the upper (1) intended to be coupled to a sole (12).
4. Shoe upper (1) according to any one of claims 1 to 3, characterized in that the facing (31) and the lining (32) of the back part (3) are joined together at least by one seam (8) called the joining seam and in that the or at least one of the joining seams (8) of the facing (31) of the back part (3) and of the lining (32) of the back part (3) extends parallel to the or one of the seams (51) of the connection (5) of each quarter (4) to the back part (3).
5. Shoe upper (1) according to any one of claims 1 to 4, characterized in that the front part (2) of the upper (1) comprises at least one toe cap (9) and a vamp (10), in that the toe cap (9) comprises, at least lo- from the outside towards the inside of the stem (1), a facing (91) and a lining (92) called inner assembled to said facing (91) and coming at least partially over the said facing (91), in that the end (9) is assembled to the butt (10) by a connection (11) comprising at least one seam (110) and in that the lining (92) of said end (9) extends in projection from the facing (91) of the end (9) and from the connection (11) of the end (9) to the butt (10) and comes partially over the outside of said butt (10) to form a thermal screen at least partially protecting said butt (10) and / or a guide to aid in the disassembly of said end (9).
6. Shoe upper (1) according to claim 5, characterized in that the or at least one of the seams (110) of the joint (11), which is at least one joint (11) by seam, from the toe (9) to the vamp (10) comprises at least one hot-fusible sewing thread.
7. Footwear (13) comprising at least one upper (1) and one sole (12), characterized in that the upper (1) conforms to any one of claims 1 QA
8. 1 dO. A method for manufacturing a shoe upper (1) comprising at least a front portion (2), a rear portion (3) called the heel counter, and two quarters (4) arranged opposite each other and each extending from the front portion (2) to the rear portion (3), said method comprising, for each quarter (4), a step of coupling said quarter (4) by a connection (5) to the rear portion (3), the connection (5) comprising at least one seam (51), the rear portion (3) of the upper (1) comprising, at least locally, from the outside towards the inside of the upper (1), a facing (31) and a lining (32) called the inner lining assembled to said facing (31) and at least partially overlapping said facing (31), characterized in that, at the end of the coupling step, for each quarter (4),The lining (32) of the rear part (3) extends beyond the facing (31) of the rear part (3) and the connection (5) of the rear part (3) to said quarter (4) and partially overlaps the outside of said quarter (4) to form a thermal screen providing at least partial protection to said quarter (4) and / or a guide to aid in the dismantling of the rear part (3).
9. Method of manufacturing a shoe upper (1) according to claim 8, characterized in that the shoe upper (1) conforms to any one of claims 2 to 6.