Flexible enclosure folding structure and method of manufacture

Abstract

The present invention discloses a flexible enclosure folding structure and manufacturing method, comprising: a flexible enclosure provided with a front piece and a back piece; a lining provided with a line of weakness, which further comprises a linearly extended transverse line of weakness and longitudinal line of weakness and a plurality of folding units formed between the two, thereby constituting a one-piece folding structure. The present invention, through a manufacturing method of one-time slitting, alignment and jointing operations, can greatly reduce manufacturing costs, and further provides the user with the function of quickly folding the flexible enclosure into a small bag or unfolding it for use through the plurality of folding units and line of weakness.

Description

Technical Field

[0001] This invention relates to a flexible enclosure folding structure and manufacturing method, particularly to a method of manufacturing multiple folding units containing weak lines in one piece by a one-time cutting, alignment and joining manufacturing method, and to achieve a function that facilitates rapid folding after further combining with a flexible enclosure. Background Technology

[0002] Existing folding structures for bags on the market mainly attach multiple folded panels 401 to the front panel 741 or the back panel 841 of the shopping bag 79, such as... Figure 1 As shown, the multiple folding pieces 401 are arranged in a spaced manner, aligned with each other and with gaps between them, and are fixed one by one to the inside of the front piece 741. The gaps between each adjacent folding piece 401 form a fold line 510 after folding. The user can fold and store the shopping bag 79 or unfold it for use along the fold line 510 formed by the spaced folding pieces 401.

[0003] The main shortcomings of the aforementioned traditional folding shopping bag products are as follows:

[0004] (1) As Figure 1 As shown, since each folded sheet 401 is an independent small unit sheet, each small unit sheet needs to be cut into the required size area during material preparation. This requires a lot of manpower and time for cutting and other material preparation, which increases the selling price and affects consumers' willingness to buy.

[0005] (2) Since each folded piece 401 needs to be individually attached and fixed to the front piece 741 or the back piece 841 of the shopping bag 79 by means of adhesive or sewing, if... Figure 1 Taking the folded sheet 401 with twelve sections as an example, it is necessary to repeatedly glue or sew the positions of the twelve sections twelve times. This requires a lot of manpower and time for manufacturing costs such as gluing or sewing, which increases the selling price and affects consumers' willingness to buy.

[0006] (3) Since each folded piece 401 needs to be fixed to the front piece 741 in an aligned and spaced arrangement, and the gaps between them need to maintain a consistent width, in addition to aesthetic considerations, it is also necessary to consider whether the gaps are sufficient for the user to fold and store the shopping bag 79 smoothly along the fold line 510 formed by the gaps; if... Figure 1Taking the folded sheet 401 of the twelve sections shown as an example, when performing the joining operation, each folded sheet 401 must be carefully aligned with the twelve fixed positions specified by the front sheet 741 or the back sheet 841 of the shopping bag 79 to facilitate subsequent gluing or sewing operations. There must be no deviation or displacement. Therefore, a lot of manpower and time costs must be consumed for arrangement and alignment, resulting in an excessively high final price and affecting consumers' willingness to buy.

[0007] (4) Furthermore, since each folded sheet 401 is an independent small unit sheet, if... Figure 1 Taking the twelve folding panels 401 shown as an example, if the glued part or the stitching of one of the folding panels 401 comes off for any reason, it will cause difficulties in folding the shopping bag 79, and may even lead to structural damage, making it impossible to use the storage function of the shopping bag 79. Summary of the Invention

[0008] The main objective of this invention is to provide a flexible enclosure folding structure and manufacturing method that can overcome the shortcomings of the prior art, so that the storage structure can achieve the purpose of multiple uses and functions, and the flexible enclosure structure can be further modified and applied to products such as pet covers and bags.

[0009] To achieve the above objectives, the present invention provides a flexible enclosure folding structure, comprising:

[0010] A flexible enclosure has a front piece and a rear piece, wherein the edge of the front piece has a first transverse joint line and a first longitudinal joint line, and the edge of the rear piece has a second transverse joint line and a second longitudinal joint line.

[0011] A lining material having a weak line portion, wherein the edge of the lining material has a third transverse joint line and a third longitudinal joint line; the weak line portion further includes a linearly extending transverse weak line portion and a longitudinal weak line portion.

[0012] The lining is located on either the front or rear piece. It is joined to the front or rear piece by the first or second transverse joining line and the first or second longitudinal joining line provided on the front or rear piece, and the third transverse joining line and the third longitudinal joining line provided on the lining, so that the lining can be fixed to one of the front or rear pieces. By forming multiple folding units integrally with the transverse weak lines and longitudinal weak lines provided on the lining, the flexible enclosure can be quickly folded along the weak lines of the lining into a structure of a predetermined shape and area.

[0013] The lining is also provided with a lining fabric on the other side of the front or back piece.

[0014] The lining fabric has a fourth transverse joining line and a fourth longitudinal joining line on its edge. The lining fabric and the interlining are joined and fixed together by the fourth transverse joining line, the fourth longitudinal joining line, the third transverse joining line, and the third longitudinal joining line before being joined and fixed to the flexible enclosure. Alternatively, the lining fabric, the interlining, and the flexible enclosure can be joined and fixed simultaneously at one time by the fourth transverse joining line, the fourth longitudinal joining line, the third transverse joining line, the third longitudinal joining line, and one of the first transverse joining line, the first longitudinal joining line, or the second transverse joining line, the second longitudinal joining line. The joining and fixing method includes one of the following: gluing, heat fusion, high frequency welding, or sewing.

[0015] The fixed joint positions include the position of the weak line portion or the edge position of the multiple folded units.

[0016] The lining is fixed to either the inner fabric or the flexible enclosure by bonding the entire surface together.

[0017] The weak wire portion includes one of the following: a fully penetrating long slot, a continuous threading hole or pinhole, a non-penetrating pressure groove, or a composite wire hole combining a fully penetrating pinhole and a non-penetrating pressure groove.

[0018] The flexible enclosure further includes a small pouch with a storage space. The small pouch is composed of a first inner sheet and a second inner sheet, one of which is fixed to one of the front sheet or the rear sheet. The flexible enclosure can be folded into an area corresponding to the shape of the small pouch by means of multiple folding units formed by the weak lines, thereby storing the folded flexible enclosure in the storage space of the small pouch.

[0019] The flexible enclosure includes either a bag or a garment.

[0020] The present invention also provides a method for manufacturing a flexible enclosure folding structure, comprising the following steps:

[0021] (a) First step: Pre-determine the shape of the lining to be cut within the range of a sheet material and the weak lines contained in the lining material, so as to carry out the sheet material preparation operation;

[0022] (b) Second step: Use a slitting device to slit the sheet to form an integrally formed lining containing a weak line portion and a residual material after slitting; wherein the weak line portion further includes a linearly extending transverse weak line portion, a longitudinal weak line portion and a plurality of folded units formed between the transverse weak line portion and the longitudinal weak line portion.

[0023] (c) Third step: Separating the scrap material formed after cutting the sheet;

[0024] (d) Fourth step: Alignment operation at the predetermined joint position between the lining, inner fabric and flexible enclosure obtained after separation;

[0025] (e) Fifth step: Perform a two-stage joining operation: First, join the aligned lining and inner fabric to form a semi-finished product; then, join the lining and flexible outer fabric to form a finished product; or

[0026] (f) Perform a one-time bonding operation: simultaneously bond the lining, the interlining and the flexible enclosure together.

[0027] The flexible enclosure includes a front piece and a rear piece. The front piece has a first transverse joining line and a first longitudinal joining line on its edge, and the rear piece has a second transverse joining line and a second longitudinal joining line on its edge. The lining has a third transverse joining line and a third longitudinal joining line on its edge. The lining is located on either the front piece or the rear piece. The lining is fixed to either the front piece or the rear piece by the first transverse joining line or the second transverse joining line and the first longitudinal joining line or the second longitudinal joining line on the front piece or the rear piece, and the third transverse joining line and the third longitudinal joining line on the lining.

[0028] The methods of joining and fixing include gluing, hot melting, high frequency welding, or sewing.

[0029] The fixed joint positions include the position of the weak line portion or the edge position of the multiple folded units.

[0030] The lining is fixed to either the inner fabric or the flexible enclosure by bonding the entire surface together.

[0031] The present invention also provides a flexible enclosure folding structure, comprising:

[0032] A flexible enclosure has a front piece and a rear piece, wherein the edge of the front piece has a first transverse joint line and a first longitudinal joint line, and the edge of the rear piece has a second transverse joint line and a second longitudinal joint line.

[0033] The flexible enclosure is provided with a weak line portion, wherein the weak line portion further includes a linearly extending transverse weak line portion and a longitudinal weak line portion.

[0034] The flexible enclosure has multiple folding units integrally formed between the transverse and longitudinal weak lines. The surface of the multiple folding units is coated by printing, and after the coating is cured, a coating layer with stronger surface tension than the weak lines is formed, thereby achieving the ability to quickly fold the flexible enclosure into a structure of a predetermined shape and area.

[0035] The weak wire portion includes one of the following: a fully penetrating long slot, a continuous threading hole or pinhole, a non-penetrating pressure groove, or a composite wire hole combining a fully penetrating pinhole and a non-penetrating pressure groove.

[0036] The flexible enclosure further includes a small pouch with a storage space. The small pouch is composed of a first inner sheet and a second inner sheet, one of which is fixed to one of the front sheet or the rear sheet. The flexible enclosure can be folded into an area corresponding to the shape of the small pouch by means of multiple folding units formed by the weak lines, thereby storing the folded flexible enclosure in the storage space of the small pouch.

[0037] The flexible enclosure includes either a bag or a garment.

[0038] The present invention also provides a flexible enclosure folding structure, comprising:

[0039] A flexible enclosure has a front piece and a rear piece, wherein the edge of the front piece has a first transverse joint line and a first longitudinal joint line, and the edge of the rear piece has a second transverse joint line and a second longitudinal joint line.

[0040] The flexible enclosure is provided with a weak line portion, wherein the weak line portion further includes a linearly extending transverse weak line portion and a longitudinal weak line portion.

[0041] The flexible enclosure has multiple folding units integrally formed between its transverse and longitudinal weak lines. The weak lines are formed by cutting, stamping, or extrusion, so that the multiple folding units have a stronger surface tension relative to the weak lines, thereby achieving the goal of quickly folding the flexible enclosure into a structure of a predetermined shape and area.

[0042] The weak wire portion includes one of the following: a fully penetrating long slot, a continuous threading hole or pinhole, a non-penetrating pressure groove, or a composite wire hole combining a fully penetrating pinhole and a non-penetrating pressure groove.

[0043] The flexible enclosure further includes a small pouch with a storage space. The small pouch is composed of a first inner sheet and a second inner sheet, one of which is fixed to one of the front sheet or the rear sheet. The flexible enclosure can be folded into an area corresponding to the shape of the small pouch by means of multiple folding units formed by the weak lines, thereby storing the folded flexible enclosure in the storage space of the small pouch.

[0044] The flexible enclosure includes either a bag or a garment.

[0045] The present invention also provides a method for manufacturing a flexible enclosure folding structure, comprising the following steps:

[0046] (a) First step: Place the fabric in the corresponding position of a printing device that has the function of forming weak line separation for alignment;

[0047] (b) Second step: Printing is performed on the aligned fabric to transfer the coating onto the fabric surface through multiple folds separated by weak lines to form a covering layer.

[0048] (c) Third step: Dry and cure the coating layer to strengthen the surface tension of the multiple folded units relative to the weak lines;

[0049] (d) Fourth step: The fabric is cut into the required shape and area for making the flexible enclosure including the weak line part by using a cutting device;

[0050] (e) Fifth step: Separating the residual material formed after cutting the fabric; and

[0051] (f) Step 6: After separating the residual material, perform the joining operation of the flexible enclosure to the finished product. Attached Figure Description

[0052] Figure 1 This is a partial structural decomposition diagram of a traditional folded structure.

[0053] Figure 2 This is a schematic diagram (1) illustrating the application of the slitting device in sheet cutting according to the present invention.

[0054] Figure 3 This is a schematic diagram (2) illustrating the application of the slitting device in sheet cutting according to the present invention.

[0055] Figure 4 This is a three-dimensional schematic diagram and a partially enlarged cross-sectional view of the weak line structure formed by the lining material after slitting according to the present invention.

[0056] Figure 5 A schematic diagram (1) shows the installation of the joint between the lining and the inner fabric of the present invention.

[0057] Figure 6 This is a schematic diagram (2) showing the installation of the joint between the lining and the inner fabric of the present invention.

[0058] Figure 7 This is an exploded view of the structure of the lining, inner fabric, and flexible enclosure of the present invention.

[0059] Figure 8 This is a schematic diagram illustrating the joint structure of the lining, inner fabric, and flexible enclosure of the present invention.

[0060] Figures 9 to 10 This is a schematic diagram illustrating the folding action of the flexible enclosure (bag body) of the present invention when the weak line part is used for small bag storage.

[0061] Figure 11 This is a front structural diagram of the flexible body (clothing body) of the present invention applied to the weak line portion for small bag storage.

[0062] Figure 12 This is a flowchart illustrating the manufacturing process of the flexible enclosure of the present invention, which uses a lining with weak lines to form a folded structure.

[0063] Figure 13 This is a flowchart illustrating the manufacturing process of the flexible enclosure of the present invention, in which the weak line portion is directly formed in the folded structure of the flexible enclosure.

[0064] Figure 14 For the present invention Figure 13 The embodiment is a schematic diagram of the application of roller printing to directly form weak lines and multiple fold units on the fabric.

[0065] Figure 15 For the present invention Figure 14 The diagram shows a cross-sectional view of a roller printing application using cam printing.

[0066] Figure 16 For the present invention Figure 14 The diagram shows a cross-sectional view of a roller printing application using concave roller printing.

[0067] Figure 17 For the present invention Figure 13 The embodiment is a three-dimensional schematic diagram of a semi-finished bag body in which weak lines and multiple folding units are directly formed on the fabric.

[0068] Illustrations and symbols: 401: Folded sheet; 741: Front sheet; 841: Back sheet; 79: Shopping bag; 510: Fold line; 1: Cutting device; 10: Cutting blade; 11: Cutting blade cut surface; 12: Cutting blade back side; 13: Transfer wheel; 14: Feed port; 15: Glue roller; 131: Groove; 132: Convex surface; 133: Flange; 134: Concave surface; 2: Sheet; 3: Residue; 31: Main residue; 32: Secondary residue; 30: Residue hole; 4: Lining; 41: Third transverse joining line; 42: Third longitudinal joining line; 5: Weak line; 50: Joining line; 51: Transverse weak line; 52: Longitudinal weak line; 53: Transverse joining line; 54: Longitudinal joining line; 501: Multiple folded units; 6: Lining fabric; 6 1: Fourth transverse joint line; 62: Fourth longitudinal joint line; 71: First transverse joint line; 72: First longitudinal joint line; 73: Front handle; 74: Front piece; 710: Second transverse joint line; 720: Second longitudinal joint line; 730: Rear handle; 740: Rear piece; 9: Flexible enclosure; 91: Fabric; 92: Covering layer; 93: Adhesive; 7: Bag body; 8: Clothing body; 70, 80: Small bag; 700, 800: Storage space; 75, 85: First inner piece; 76, 86: Second inner piece; 77, 87: Cover piece; 78, 88: Cover assembly; A-A': Cross section; A1: Enlarged part; B1: Seam groove; B2: Continuous stitching hole; B3: Long slot hole; B4: Pin hole; B5: Composite stitching hole. Detailed Implementation

[0069] Please see Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the first embodiment of the present invention mainly consists of a folded structure composed of a flexible enclosure 9 and a lining 4, wherein the flexible enclosure 9 can be a bag body 7. Figure 7 , Figure 8The lining 74 has at least a front piece 74 and a rear piece 740. The front piece 74 has a first transverse joining line 71 and a first longitudinal joining line 72 on its edge, and the rear piece 740 has a second transverse joining line 710 and a second longitudinal joining line 720 on its edge. The lining 4 has a pre-defined weak line portion 5, wherein the lining 4 has a third transverse joining line 41 and a third longitudinal joining line 42 on its edge. The weak line portion 5 further includes a linearly extending transverse weak line portion 51 and a longitudinal weak line portion 52, through which the transverse weak line... Multiple folded units 501 are integrally formed between part 51 and longitudinal weak line part 52; the lining 4 can be provided on either side of the front piece 74 or the rear piece 740, and can be fixed to one of the front piece 74 or the rear piece 740 by the first and second transverse joining lines 71, 710 and the first and second longitudinal joining lines 72, 720 provided on the front piece 74 or the rear piece 740, and the third transverse joining line 41 and the third longitudinal joining line 42 provided on the lining 4.

[0070] like Figures 8 to 10 As shown, the lining 4 has a horizontal weak line 51 and a vertical weak line 52. The horizontal weak line 51 and the vertical weak line 52 form a whole piece of lining 4 containing weak line 5 and composed of multiple folding units 501. The multiple folding units 501 are assumed to be the area size of the desired shape, thereby achieving the structure of a small bag 70 that can be carried by folding the flexible body 9 along the weak line 5 of the lining 4 into the area size of the preset shape.

[0071] like Figure 5 , Figure 6 , Figure 7 As shown, the lining 4 is located on one side of the front piece 74 or the back piece 740, and a lining fabric 6 is provided above the lining 4. Figure 5 , Figure 6 The upper image shows the state of the lining 4 before it is joined to the inner fabric 6. Figure 5 , Figure 6 The lower diagram illustrates the first joining operation of the lining 6 to the interlining 4 from top to bottom, completing the semi-finished product, to facilitate the second joining operation of the finished product with the bag body 7 (as shown in the diagram). Figure 8 As shown), the aforementioned Figure 5 , Figure 6The first joining operation is revealed in the two-stage joining process. The front panel 74 of the bag body 7 has a front handle 73, and the rear panel 740 has a rear handle 730. The lining fabric 6 has a fourth transverse joining line 61 and a fourth longitudinal joining line 62 along its edge. The lining fabric 6 and the interlining material 4 are joined and fixed together by the fourth transverse / longitudinal joining lines 61, 62 and the third transverse / longitudinal joining lines 41, 42, and then joined and fixed to the flexible enclosure 9 (bag body 7). Alternatively, the lining fabric 6, interlining material 4, and flexible enclosure 9 (bag body 7) can be joined and fixed simultaneously and in one step by the fourth transverse / longitudinal joining lines 61, 62, the third transverse / longitudinal joining lines 41, 42, and one of the first transverse / longitudinal joining lines 71, 72 or the second transverse / longitudinal joining lines 710, 720. Figure 7 , Figure 8 The lining 6 is used to cover the surface of the lining 4, so that the lining 4 is wrapped between the flexible enclosure 9 (bag body 7) and the lining 6.

[0072] The aforementioned lining 6, interlining 4, and flexible enclosure 9 (bag body 7) are fixed together by a joining line 50. This joining method includes gluing, heat fusion, high-frequency welding, or sewing. The joining line 50 includes a transverse joining line 53 and a longitudinal joining line 54, and the joining position can be located at the edge of multiple folding units 501 (e.g., ...). Figure 5 As shown), it can also be set at position 5 of the weak line section (as shown). Figure 6 (As shown). In addition to being applied at the edges of multiple folding units 501 or at linearly related positions of weak lines 5, the aforementioned bonding method can also be used to attach the lining 4 to one of the inner fabric 6 or the flexible enclosure 9 by bonding the entire surface together.

[0073] In addition, such as Figure 4 As shown, Figure 4 The position A-A' marked in the topmost perspective view of lining 4 corresponds to the cross-sectional view A-A' of lining 4 below it; the longitudinal weak line portion 52 marked in this cross-sectional view A-A' is further shown by a partially enlarged cross-sectional view of 52(51) marked A1 below it, wherein the longitudinal weak line portion 52 and the transverse weak line portion 51 have the same structure. The weak line portion 5 further includes various different embodiment structures of B1-B5, such as: a fully penetrating long slot B3, a continuous threading hole B2 or a pinhole B4, a non-penetrating crimping groove B1, or a composite thread hole B5 combining a fully penetrating pinhole and a non-penetrating crimping groove.

[0074] For example Figures 8 to 14As shown, the flexible enclosure 9 (bag body 7) further includes a small pouch 70 with a storage space 700. The small pouch 70 is composed of a first inner sheet 75 and a second inner sheet 76, one of which is fixed to one of the front sheet 74 or the rear sheet 740. The flexible enclosure 9 (bag body 7) can be folded into a structure corresponding to the shape or size of the small pouch 70 by means of the pre-set weak lines 5 of the lining 4, thereby storing the folded flexible enclosure 9 (bag body 7) in the storage space 700 of the small pouch 70. In addition, the small pouch 70 may be provided with a cover 77 and a cover assembly 78 to close and fix the folded flexible enclosure 9 (bag body 7) placed in the storage space 700 of the small pouch 70.

[0075] In addition to being applicable to the bag body 7 as described above, the flexible enclosure 9 can also be used as... Figure 11 As shown, it is applied to a garment body 8, and its structure is as described above. It is a folded structure composed of a lining 4 with a weak thread portion 5. A lining 6 can be further provided on the surface of the lining 4 on one side of the garment body 8, so that the lining 4 covers the garment body 8 and the lining 6. The joining method between the garment body 8, the lining 4, and the lining 6 is the same as the structure described above for the bag body 7. The garment body 8 may be provided with a small pouch 80 (as shown in the figure, the small pouch 80 is located in the pocket of the garment body 8), and the small pouch 80 is provided with a storage space 800; the small pouch 80 is composed of a first inner piece 85 and a second inner piece 86, one of which is fixed to the garment body 8; the flexible body 9 can be folded into a structure corresponding to the shape or area size of the small pouch 80 by means of the preset weak lines 5 provided in the lining 4; in addition, the small pouch 80 may be provided with a cover 87 and a cover assembly 88, thereby inserting the folded garment body 8 into the storage space 800 of the small pouch 80 and closing and fixing it.

[0076] As mentioned above, the present invention also provides a method for manufacturing a folded structure consisting of a flexible enclosure 9 combined with a lining 4 having a weak line portion 5. Please refer to [link to relevant documentation]. Figure 12 At the same time, in coordination Figure 2 , Figure 3 and Figure 6 , Figure 7 , Figure 8 As shown, it includes at least the following steps:

[0077] (a) First step: Pre-determine the shape of the lining 4 to be cut within the range of a sheet 2 and the shape of the weak line portion 5 contained in the lining 4, so as to carry out the material preparation operation of sheet 2;

[0078] (b) Second step: The sheet 2 is cut using a slitting device 1 to form an integrally formed lining 4 containing a weak line portion 5 and a residual material 3; wherein the weak line portion 5 further includes a linearly extending transverse weak line portion 51, a longitudinal weak line portion 52, and a plurality of folding units 501 formed between the transverse weak line portion 51 and the longitudinal weak line portion 52.

[0079] (c) Third step: Separate the residual material 3 formed after cutting sheet 2;

[0080] (d) Fourth step: Align the lining 4, inner fabric 6 and flexible body 9 obtained after separating the residual material 3 at the predetermined joint positions.

[0081] (e) Fifth step: Perform a two-stage joining operation. First, join the semi-finished lining 4 and lining fabric 6 after alignment. Then, join the lining fabric 6 and flexible enclosure 9 with the lining 4 as finished products. Or

[0082] (f) Perform a one-time bonding operation, whereby the lining 6, the lining 4, and the flexible enclosure 9 are bonded together in one operation.

[0083] When preparing materials, estimate the required size and area of ​​the sheet 2 based on the actual shape of the lining 4 to be cut out, so as to carry out the pre-cutting work for the material preparation; when performing the slitting operation, if the slitting device used can be a cutter 10, the sheet 2 needs to be placed on a cutting table (not shown), with the cutter 10 above the sheet 2, so that the back side 12 of the cutter faces upward and the cutting surface 11 of the cutter faces downward (e.g., Figure 2 As shown), the cutting surface 11 of the cutter contacts the sheet 2 to facilitate the cutting action of the cutter 10. During the separation operation, the sheet 2 is cut to form a residual material 3. This residual material 3 includes a main residual material 31 and a secondary residual material 32, as well as a residual material hole 30 formed between the main residual material 31 and the secondary residual material 32. After separating the residual material 3, the required lining material 4 is obtained (e.g., ...). Figure 3 (As shown). When performing alignment operations, corresponding positions for the joining lining 4 can be predetermined on the surface of the flexible enclosure 9 or the lining 6, and alignment point marks can be made in advance to facilitate the accurate and rapid joining of the lining 4 to the default position on the surface of the flexible enclosure 9 or the lining 6 during the joining operation.

[0084] In addition, refer to Figure 5 , Figure 6 , Figure 7 As described above, the lining 4 is located on one side of the flexible enclosure 9 (front piece 74 or back piece 740), and a lining 6 may be further provided, which covers the surface of the lining 4, such that the lining 4 is located between the flexible enclosure 9 and the lining 6 (e.g., Figure 7As shown), when performing the joining operation of semi-finished products, the lining fabric 6 and the interlining 4 can be joined and fixed together first (as shown). Figure 5 , Figure 6 (As shown), then perform the finished product joining operation with the flexible enclosure 9; or, the lining 6, the interlining 4, and the flexible enclosure 9 can also be joined simultaneously as a finished product in one operation (as shown). Figure 7 As shown), this joining operation can employ any joining method, such as sewing, gluing, heat fusion, or high-frequency welding. The joining line 50 can be located at the weak point 5 (e.g., ...). Figure 5 (as shown) or the edge position of the weak line part 5 (such as Figure 6 (as shown); the joining and fixing method of the joint line, and various embodiments of the weak line portion 5 (see reference). Figure 3 As mentioned above, there will be no further explanation here.

[0085] like Figure 2 , Figure 3 As shown, the aforementioned slitting device 1 is a cutting blade 10 applied to a cutting bed. A laser cutting device or any automatic cutting device (not shown) can also be used to perform the action of slitting the sheet 2.

[0086] The main advantages of the folding structure and manufacturing method of the present invention are as follows:

[0087] (1) Since the lining 4 is formed by cutting and shaping in one go, a whole piece of lining 4 composed of multiple folded units 501 is formed between the preset weak lines 5. Therefore, when preparing materials, it is only necessary to estimate the single size area required for the entire area of ​​the front piece 74 or the back piece 740 of the bag body 7. Compared with the traditional product structure using twelve separate linings (folded pieces 401), at least twelve times the material preparation and cutting operation costs can be saved, which can greatly reduce manufacturing costs such as manpower and time.

[0088] (2) Since the lining 4 is a whole piece of lining 4 composed of multiple folded units 501 formed by cutting in one go through the slitting operation, the lining 4 already includes the weak line part 5 with reserved gaps. When the alignment operation is performed, the whole piece of lining 4 only needs to be positioned in a one-time alignment manner and positioned in the fixed position specified by the front piece 74 or the back piece 740 of the bag body 7. Compared with the traditional product structure using twelve separate lining pieces (folded pieces 401), the alignment operation cost can be saved by at least twelve times, which can greatly reduce the manufacturing costs such as manpower and time.

[0089] (3) Since the lining 4 is a whole piece of lining 4 including the preset weak line part 5, which is formed by one-time cutting through the slitting operation, only one-time joining operation is required for a default block position within the entire range of the front piece 74 or the back piece 740 of the bag body 7 (the main working method is gluing or sewing). Compared with the traditional product structure using twelve separate lining pieces (folded piece 401), the joining operation cost can be saved by at least twelve times, which can greatly reduce the manufacturing costs such as manpower and time.

[0090] (4) Furthermore, since the lining 4 formed by the one-time cutting operation is a single piece of lining 4 composed of multiple folding units 501 (including weak line parts 5), the multiple folding units 501 are an integral linked structure. During manufacturing, the lining 4 is also fixed to the position specified by the front piece 74 or the back piece 740 of the bag body 7 in a one-time joining manner. Compared with the traditional product structure that uses twelve separate lining pieces (folding pieces 401), the structure of the present invention will not cause difficulties in the folding operation of the bag body 7 due to the fall off of one of the lining pieces (folding pieces 401), or cause the associated structural damage, thus making it impossible to use its storage function.

[0091] Please see Figures 13 to 17 As shown, this is the second embodiment of the present invention. The difference from the first embodiment is that the weak line portion 5 is directly formed on the surface of the flexible enclosure 9. The weak line portion 5 further includes a linearly extending transverse weak line portion 51 and a longitudinal weak line portion 52. By forming multiple folding units 501 between the transverse weak line portion 51 and the longitudinal weak line portion 52, the flexible enclosure 9 can be quickly folded into a structure of a predetermined shape and area. The surface of the multiple folding units 501 between the transverse weak line portion 51 and the longitudinal weak line portion 52 is formed on the surface of the flexible enclosure 9 by printing a raised, positive-side coating layer 92. This allows multiple folding units 501 with stronger surface tension than the recessed weak line portion 5 after the coating layer 92 has cured. After the coating layer 92 dries and cures, the surface tension of the multiple folding units 501 is further strengthened. Then, a slitting operation is performed to cut out the shape and area dimensions of the flexible enclosure 9 required for manufacturing the weak line portion 5. Figure 17 The bag body 7 shown achieves the effect of easy folding of the flexible body 9 by forming multiple folding units 501 between the transverse weak line portion 51 and the longitudinal weak line portion 52 directly on the surface of the flexible body 9 (either the front piece 74 or the back piece 740) with the covering layer 92.

[0092] like Figure 13 The diagram shows the printing method for forming the coating layer 92 in this embodiment, which includes the following steps:

[0093] (a) First step: Place the fabric 91 at the corresponding position in a printing device 18 that has the function of forming weak line sections 5 for alignment.

[0094] (b) Second step: Printing is performed on the aligned fabric 91 to transfer the coating onto the surface of the fabric 91, which is divided into multiple folded units 501 by the weak line portion 5 to form a covering layer 92.

[0095] (c) Third step: Dry and cure the coating layer 92 to strengthen the surface tension of the plurality of folded units 501 relative to the weak line portion 5;

[0096] (d) Fourth step: The fabric 91 is cut by the cutting device 1 to cut out the shape and area required to make the flexible enclosure 9 including the weak line part 5;

[0097] (e) Fifth step: Separating the residual material 3 formed after cutting fabric 91; and

[0098] (f) Sixth step: After separating the residual material 3, perform the joining operation of the flexible enclosure 9 to the finished product.

[0099] like Figure 14 The diagram shows a printing method applied to roller printing in this embodiment. The coating material that can form the coating layer 92 is fed through the feed port 14 and applied to the top roller 15. Then, the coating material is printed on the surface of the transfer roller 13 onto multiple folded units with pre-set horizontal weak lines 51 and vertical weak lines 52. The fabric 91 to be made into a flexible enclosure 9 is placed at the corresponding position of the transfer roller 13. The rotation direction of the transfer roller 13 drives the forward direction of the fabric 91. Through the corresponding rotation of the two, the coating material on the surface of the transfer roller 13 is transferred onto the surface of the fabric 91 to the multiple folded units 501 separated by the horizontal weak lines 51 and vertical weak lines 52, so as to facilitate the formation of the coating layer 92 on the surface of the fabric 91.

[0100] The aforementioned roller printing further includes letterpress printing and gravure printing. For the aforementioned letterpress printing, please also refer to... Figure 14 and Figure 15 As shown, the position of the transverse weak line portion 51 and the longitudinal weak line portion 52 of the transfer roller 13 used to separate multiple folding units 501 is set as a flange 133, and the position to be separated into multiple folding units 501 is set as a concave surface 134. When the feed port 14 discharges material, the glue 93 is controlled by the glue roller 15 to adhere to the concave surface 134 of the transfer roller 13, thereby further transferring the glue 93 attached to the concave surface 134 to the surface of the multiple folding units 501.

[0101] Please also refer to the aforementioned gravure printing. Figure 14 and Figure 16As shown, the positions of the transverse weak line portion 51 and the longitudinal weak line portion 52 that need to be divided into multiple folding units 501 on the transfer roller 13 are set as grooves 131, wherein the positions that need to be divided into multiple folding units are set as convex surfaces 132; when the feed port 14 discharges material, the glue roller 15 controls the glue material 93 to adhere to the convex surface 132 of the transfer roller 13, thereby further transferring the glue material 93 attached to the convex surface 132 to the surface of the multiple folding units 501.

[0102] In addition to the aforementioned roller printing, the printing method of this embodiment can also employ digital printing, stencil printing, screen printing, inkjet printing, heat transfer printing, or sublimation printing. This achieves the printing of coating onto the surfaces of multiple folded units 501 to form a raised coating layer 92 on the positive side, thereby differentiating the recessed transverse weak line portions 51 and longitudinal weak line portions 52 on the negative side. Furthermore, the transverse weak line portions 51 and longitudinal weak line portions 52 can be formed, in addition to the aforementioned printing method, on a flat surface of a flexible enclosure 9 with a coating or covering layer, or on a flat surface of materials including the aforementioned sheet or fabric, by applying cutting, punching, or extrusion to form the weak line portions 5. The cutting, punching, or extrusion apparatus can be referred to as... Figure 15 As shown, the transverse weak line portion 51 and the longitudinal weak line portion 52 of the cam device are configured as flanges 133 that have the effect of disrupting the flatness of the sheet or coating layer, serving as pressing points for cutting, stamping, or extrusion. These pressing points can be formed including, for example, Figure 4 The weak line portion 5 shown includes the effects of various different embodiments such as B1-B5. In addition, the aforementioned cutting, stamping or extrusion device can also be applied to sheet or fabric with weak line portions 5 already formed and having multiple fold units 501, so that the weak line portion 5 can be further subjected to cutting, stamping or pressing processing, which can further strengthen the surface tension of the multiple fold units 501.

[0103] The second embodiment of the folding structure and manufacturing process of the present invention, in addition to having all the advantages (1) to (4) of the one-time cutting and forming listed in the first embodiment, has the following advantages: since the covering layer 92 is directly printed on the surface of the flexible enclosure 9 to form multiple folding units 501 with folding function, and the transverse weak line portion 51 and the longitudinal weak line portion 52 are separated, it is not necessary to fix or sew it with the lining 4 or the inner fabric 6. The alignment and joining operations required in the manufacturing process of the first embodiment can be eliminated. Therefore, compared with the first embodiment, this embodiment can not only further simplify the manufacturing process, speed up the production time and process, but also greatly save material and labor costs, thereby reducing the end price to promote industrial use and widespread sales of products.

[0104] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications or variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the following claims.

Claims

1. A flexible enclosure folding structure, characterized in that, Include: A flexible enclosure has a front piece and a rear piece, wherein the edge of the front piece has a first transverse joint line and a first longitudinal joint line, and the edge of the rear piece has a second transverse joint line and a second longitudinal joint line. A lining material having a weak line portion, wherein the edge of the lining material has a third transverse joint line and a third longitudinal joint line; the weak line portion further includes a linearly extending transverse weak line portion and a longitudinal weak line portion. The lining is located on either the front or rear piece. It is joined to the front or rear piece by the first or second transverse joining line and the first or second longitudinal joining line provided on the front or rear piece, and the third transverse joining line and the third longitudinal joining line provided on the lining, so that the lining can be fixed to one of the front or rear pieces. By forming multiple folding units integrally with the transverse weak lines and longitudinal weak lines provided on the lining, the flexible enclosure can be quickly folded along the weak lines of the lining into a structure of a predetermined shape and area.

2. The flexible enclosure folding structure as described in claim 1, characterized in that, The lining is located on the other side of the front or back panel and has a lining fabric.

3. The flexible enclosure folding structure as described in claim 2, characterized in that, The lining edge is provided with a fourth transverse joining line and a fourth longitudinal joining line. The lining and the interlining are joined and fixed together by the fourth transverse joining line, the fourth longitudinal joining line, the third transverse joining line, and the third longitudinal joining line before being joined and fixed to the flexible enclosure. Alternatively, the lining, the interlining and the flexible enclosure can be joined and fixed simultaneously at one time by the fourth transverse joining line, the fourth longitudinal joining line, the third transverse joining line, the third longitudinal joining line, and one of the first transverse joining line, the first longitudinal joining line, or the second transverse joining line, the second longitudinal joining line. The joining and fixing method includes one of the following: gluing, heat fusion, high frequency welding or sewing.

4. A flexible enclosure folding structure as described in claim 1 or 3, characterized in that, The location for joining and fixing includes the location of the weak line portion or the edge location of the multiple folded units.

5. A flexible enclosure folding structure as described in claim 2 or 3, characterized in that, The lining is bonded together with either the lining or the flexible enclosure in a full-surface adhesive manner.

6. A method for manufacturing a flexible folded enclosure structure, characterized in that, Includes the following steps: (a) First step: Pre-determine the shape of the lining to be cut within the range of a sheet material and the weak lines contained in the lining material, so as to carry out the sheet material preparation operation; (b) Second step: The sheet is cut using a slitting device to form an integrally formed lining containing a weak line portion and a residual material after slitting; wherein the weak line portion further includes a linearly extending transverse weak line portion, a longitudinal weak line portion and a plurality of folded units formed between the transverse weak line portion and the longitudinal weak line portion. (c) Third step: Separate the scrap material formed after cutting the sheet; (d) Fourth step: Alignment operation at the predetermined joint position between the lining, inner fabric and flexible enclosure obtained after separation; (e) Fifth step: Perform a two-stage joining operation: First, join the lining and inner fabric, which have been aligned, to form a semi-finished product; then, join the lining and flexible outer fabric, which are then joined together, to form a finished product; or (f) Perform a one-time bonding operation: simultaneously bond the lining, the interlining and the flexible enclosure together.

7. The method for manufacturing a flexible enclosure folding structure as described in claim 6, characterized in that, The flexible enclosure includes a front piece and a rear piece, wherein the edge of the front piece is provided with a first transverse joining line and a first longitudinal joining line, and the edge of the rear piece is provided with a second transverse joining line and a second longitudinal joining line; the edge of the lining is provided with a third transverse joining line and a third longitudinal joining line; the lining is located on either the front piece or the rear piece, and is fixed to one of the front piece or the rear piece by means of the first transverse joining line or the second transverse joining line and the first longitudinal joining line or the second longitudinal joining line provided on the front piece or the rear piece, and the third transverse joining line and the third longitudinal joining line provided on the lining.

8. A method for manufacturing a flexible enclosure folding structure as described in claim 6 or 7, characterized in that, The methods of joining and fixing include gluing, hot fusion, high frequency welding, or sewing.

9. A method for manufacturing a flexible enclosure folding structure as described in claim 6 or 7, characterized in that, The location for joining and fixing includes the location of the weak line portion or the edge location of the multiple folded units.

10. The method for manufacturing a flexible enclosure folding structure as described in claim 6, characterized in that, The lining is bonded together with either the lining or the flexible enclosure in a full-surface adhesive manner.

11. A flexible enclosure folding structure, characterized in that, Include: A flexible enclosure has a front piece and a rear piece, wherein the edge of the front piece has a first transverse joint line and a first longitudinal joint line, and the edge of the rear piece has a second transverse joint line and a second longitudinal joint line. The flexible enclosure is provided with a weak line portion, wherein the weak line portion further includes a linearly extending transverse weak line portion and a longitudinal weak line portion. The flexible enclosure has multiple folding units integrally formed between the transverse and longitudinal weak lines. The surface of the multiple folding units is coated by printing, and after the coating is cured, a coating layer with stronger surface tension than the weak lines is formed, thereby achieving the ability to quickly fold the flexible enclosure into a structure of a predetermined shape and area.

12. A flexible enclosure folding structure as described in claim 1 or 11, characterized in that, The weak wire section includes one of the following: a fully penetrating long slot, a continuous threading hole or pinhole, a non-penetrating wire groove, or a composite wire hole combining a fully penetrating pinhole and a non-penetrating wire groove.

13. A flexible enclosure folding structure as described in claim 1 or 11, characterized in that, The flexible enclosure is further provided with a small pouch, which has a storage space. The small pouch is composed of a first inner piece and a second inner piece, one of which is fixed to one of the front piece or the rear piece. The flexible enclosure can be folded into an area corresponding to the shape of the small pouch by means of multiple folding units formed by the weak lines, thereby storing the folded flexible enclosure in the storage space of the small pouch.

14. A flexible enclosure folding structure as described in claim 1 or 11, characterized in that, The flexible enclosure includes either a bag-like structure or a garment-like structure.

15. A method for manufacturing a flexible folded enclosure structure, characterized in that, Includes the following steps: (a) First step: Place the fabric in the corresponding position of a printing device that has the function of forming weak line separation for alignment; (b) Second step: Printing is performed on the aligned fabric to transfer the coating onto the fabric surface through multiple folds separated by weak lines to form a covering layer. (c) Third step: Dry and cure the coating to enhance the surface tension of the multiple fold units relative to the weak lines; (d) Fourth step: The fabric is cut into the required shape and area for making the flexible enclosure, including the weak line section, by using a slitting device; (e) Fifth step: Separate the residual material formed after cutting the fabric; as well as (f) Step 6: After separating the residual material, perform the finishing process on the flexible enclosure.

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