Edge binding device used for sewing and multidirectional adjustable hemming device thereof

Abstract

An edge binding device used for sewing and a multidirectional adjustable hemming device thereof are disclosed. The multidirectional adjustable hemming device is applied on a fasten seat and includes: a hemming body fastened on the fasten seat and having a hemming guide slot and a distal port; an upper adjustable hemming member disposed in an upper segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port; and a lower adjustable hemming member disposed in a lower segment of the hemming guide slot and fastened with the hemming body in the aforesaid manner. Accordingly, the operation convenience of the multidirectional adjustable hemming device is facilitated.

Description

BACKGROUND OF THE DISCLOSURETECHNICAL FIELD

[0001] The present disclosure relates to an edge binding device used for sewing, especially to an edge binding device used for sewing and a multidirectional adjustable hemming device thereof.DESCRIPTION OF RELATED ART

[0002] A related-art edge binding technique is often required when a textile product, such as a cloth, a bedding product or an accessory, is fabricated. The edge binding technique may adopt a hemming device for assistance, and thus a binding tape may be smoothly sewed at an edge of the textile product, such as the cloth, the bedding product or the accessory via the hemming device. As such, the edge binding efficiency of the binding tape is greatly increased.

[0003] However, an edge binding performance is hard to control when the related-art hemming device is applied at a bent area or an area having a great curvature. A feeding direction of the binding tape is easily affected by a thickness of a fabric or a radius of the curvature, and thus the feeding direction is frequently adjusted during the sewing process and risks of making mistakes may be increased. The binding tape may be accumulated because the hemming device is disposed too close to a presser foot, and thus the sewing stitches may be ununified or even broken.

[0004] Moreover, a higher sewing precision is especially required at an area having a great curvature or at a curved area with a small radius; the constant changes at the bending directions require the sewing equipment to rapidly adjust the direction of the sewing stitches to make sure the sewing stitches are unified and closely matched with the designed route. As such, how to develop a hemming device having a function of precisely adjusting the location of the binding tape in a multidirectional manner shall be improved.

[0005] Accordingly, the applicant of the present disclosure has devoted himself to improve the mentioned issues.SUMMARY OF THE DISCLOSURE

[0006] An objective of the present disclosure is to provide an edge binding device used for sewing and a multidirectional adjustable hemming device thereof, in which an upper adjustable hemming member and a lower adjustable hemming member have a function of adjusting an inward hemmed dimension, such as a stitching length and a thickness, of a binding tape, and thus the operation convenience of the multidirectional adjustable hemming device is facilitated.

[0007] In order to achieve the above objective, the present disclosure provides an edge binding device used for sewing, which includes: a fasten seat including a needle threading hole, and a multidirectional adjustable hemming device including a hemming body adjustably fastened on the fasten seat and having a hemming guide slot and a distal port disposed at a distal end of the hemming guide slot and located corresponding to the needle threading hole; an upper adjustable hemming member disposed in an upper segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port; and a lower adjustable hemming member disposed in a lower segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port.

[0008] In order to achieve the above objective, the present disclosure provides a multidirectional adjustable hemming device, which is applied on a fasten seat and includes: a hemming body adjustably fastened on the fasten seat and having a hemming guide slot and a distal port disposed at a distal end of the hemming guide slot; an upper adjustable hemming member disposed in an upper segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port; and a lower adjustable hemming member disposed in a lower segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port.

[0009] Based on what has been disclosed above, the present disclosure has following advantages. The upper adjustable hemming member is disposed in a manner of the location thereof relative to the distal port being adjustable to be closer to or farther from the distal port, and thus a caliber of a through hole defined by being surrounded by the upper adjustable hemming member, the hemming guide slot and the distal port controls a size and a thickness of a top edge of a binding tape to be inwardly hemmed. The lower adjustable hemming member is disposed in a manner of the location thereof relative to the distal port being adjustable to be closer to or farther from the distal port, and thus a caliber of a through hole defined by being surrounded by the lower adjustable hemming member, the hemming guide slot and the distal port controls a size and a thickness of a bottom edge of the binding tape to be inwardly hemmed, and thus the multidirectional adjustable hemming device is provided with effects of adjusting dimensions, such as the stitching length and the thickness, of the binding tape being inwardly hemmed, and the operation convenience of the multidirectional adjustable hemming device is facilitated, and a situation of a different inward hemming dimension of the binding tape requiring a placement of a different hemming device is avoided.BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG. 1 is a perspective view showing the assembly of the edge binding device used for sewing according to the present disclosure;

[0011] FIG. 2 is a perspective exploded view showing the edge binding device used for sewing according to the present disclosure;

[0012] FIG. 3 is a front view showing the assembly of the edge binding device used for sewing according to the present disclosure;

[0013] FIG. 4 is a top view showing the assembly of the edge binding device used for sewing according to the present disclosure;

[0014] FIG. 5 is a perspective view showing the presser foot according to the present disclosure; and

[0015] FIG. 6 is another perspective view showing the assembly of the edge binding device used for sewing according to the present disclosure.DETAILED DESCRIPTION OF THE DISCLOSURE

[0016] The technical contents of this disclosure will become apparent with the detailed description of embodiments accompanied with the illustration of related drawings as follows. It is intended that the embodiments and drawings disclosed herein are to be considered illustrative rather than restrictive.

[0017] Please refer to FIG. 1 to FIG. 6; the present disclosure provides an edge binding device used for sewing and a multidirectional adjustable hemming device thereof. The edge binding device used for sewing 10 mainly includes a fasten seat 1 and a multidirectional adjustable hemming device 2. The multidirectional adjustable hemming device 2 mainly includes a hemming body 21, an upper adjustable hemming member 22 and a lower adjustable hemming member 23.

[0018] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 6, the fasten seat 1 is integrally disposed on a sewing platform (not shown in figures) as one piece to make the fasten seat 1 be a part of the sewing platform or fastened with the sewing platform. The fasten seat 1 has a needle threading hole 11, one or a plurality of first positioning holes 12 and one or a plurality of second positioning holes 13. The needle threading hole 11 allows a sewing needle (not shown in figures) of a sewer to pass through.

[0019] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 6, the hemming body 21 is adjustably fastened on the fasten seat 1. The hemming body 21 has a hemming guide slot 211 and a distal port 212 disposed at a distal end of the hemming guide slot 211 and located corresponding to the needle threading hole 11. A binding tape (not shown in figures) is introduced into the hemming guide slot 211 and guided by a configuration of the hemming guide slot 211; and the binding tape is in a hemmed status after being protruded from the distal port 212 to be sewed by the sewing needle in a later stage. The hemming body 21 has one or a plurality of first locking holes 213 and one or a plurality of second locking holes 214.

[0020] Details are provided as follows. The hemming guide slot 211 has a reversed C-shaped inner wall 215. The hemming body 21 has an opening 216 disposed at a front side thereof and communicating with the hemming guide slot 211 and the distal port 212. The hemming body 21 has a convex piece 217 extended from an inner circumference of the opening 216 and opposite to a middle segment of the reversed C-shaped inner wall 215, and the first locking hole 213 and the second locking hole 214 are formed on the convex piece 217.

[0021] As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 6, the upper adjustable hemming member 22 is disposed in an upper segment of the hemming guide slot 211 and fastened with the hemming body 21 in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212; and the lower adjustable hemming member 23 is disposed in a lower segment of the hemming guide slot 211 and fastened with the hemming body 21 in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212.

[0022] Details are provided as follows. The upper adjustable hemming member 22 includes a reversed L-shaped upper hemming piece 221 and one or a plurality of first fastening members 222, and an amount of the first fastening member 222 is the same as an amount of the first locking hole 213. The reversed L-shaped upper hemming piece 221 is disposed in the upper segment of the hemming guide slot 211, and the reversed L-shaped upper hemming piece 221 has a first elongated hole L1. The lower adjustable hemming member 23 includes a reversed L-shaped lower hemming piece 231 and one or a plurality of second fastening members 232, and an amount of the second fastening member 232 is the same as an amount of the second locking hole 214. The reversed L-shaped lower hemming piece 231 is disposed in the lower segment of the hemming guide slot 211, and the reversed L-shaped lower hemming piece 231 has a second elongated hole L2.

[0023] According to one embodiment of the present disclosure, the amount of the first locking hole 213 is two and the amount of the second locking hole 214 is two; herein is not intended to be limiting. When the amount of the first locking hole 213, the amount of the second locking hole 214, the amount of the first fastening member 222 and the amount of the second fastening member 232 are two, each of the first fastening members 222 penetrates the first elongated hole L1 to be locked in each of the first locking holes 213, and each of the second fastening members 232 penetrates the second elongated hole L2 to be locked in each of the second locking holes 214, and thus a position of the reversed L-shaped upper hemming piece 221 and a location of the reversed L-shaped lower hemming piece 231 are stably locked via two locking points, and a situation of the reversed L-shaped upper hemming piece 221 and the reversed L-shaped lower hemming piece 231 only having single locking point is prevented, and rotations of the reversed L-shaped upper hemming piece 221 and rotations of the reversed L-shaped lower hemming piece 231 are avoided.

[0024] One end of the reversed L-shaped upper hemming piece 221 is disposed with the first elongated hole L1 and opposite to the convex piece 217, and another end of the reversed L-shaped upper hemming piece 221 is extended with an upper inclined wing segment 223 protruding into the opening 216, opposite to an upper segment of the reversed C-shaped inner wall 215 and gradually inclined towards the distal port 212. One end of the reversed L-shaped lower hemming piece 231 is disposed with the second elongated hole L2 and opposite to the convex piece 217, and another end of the reversed L-shaped lower hemming piece 231 is extended with a lower inclined wing segment 233 protruding into the opening 216, opposite to a lower segment of the reversed C-shaped inner wall 215 and gradually inclined towards the distal port 212.

[0025] Accordingly, the upper inclined wing segment 223 is disposed in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212, and thus a caliber of a through hole defined by being surrounded by the upper inclined wing segment 223, the reversed C-shaped inner wall 215 and the distal port 212 controls a size and a thickness of a top edge of the binding tape to be inwardly hemmed. The lower inclined wing segment 233 is disposed in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212, and thus a caliber of a through hole defined by being surrounded by the lower inclined wing segment 233, the reversed C-shaped inner wall 215 and the distal port 212 controls a size and a thickness of a bottom edge of the binding tape to be inwardly hemmed, and thus the multidirectional adjustable hemming device 2 is provided with effects of adjusting dimensions, such as the stitching length and the thickness, of the binding tape being inwardly hemmed, and the operation convenience of the multidirectional adjustable hemming device 2 is facilitated, and a situation of a different inward hemming dimension of the binding tape requiring a placement of a different hemming device is avoided.

[0026] The multidirectional adjustable hemming device 2 further includes an upper stopping member 24 and a lower stopping member 25. The upper stopping member 24 is disposed at an outer side defined in an upper segment of the distal port 212 and fastened with the hemming body 21 in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212. The lower stopping member 25 is disposed at an outer side defined in a lower segment of the distal port 212 and fastened with the hemming body 21 in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212.

[0027] Details are provided as follows. The upper stopping member 24 includes an upper stopping piece 241 and a third fastening member 242. One of the hemming body 21 and the upper stopping piece 241 has a third locking hole 243 and the other has a third elongated hole L3. The third fastening member 242 penetrates the third elongated hole L3 to be locked in the third locking hole 243. The lower stopping member 25 includes a lower stopping piece 251 and a fourth fastening member 252. One of the hemming body 21 and the lower stopping piece 251 has a fourth locking hole 253 and the other has a fourth elongated hole L4. The fourth fastening member 252 penetrates the fourth elongated hole L4 to be locked in the fourth locking hole 253.

[0028] According to one embodiment of the present disclosure, the third elongated hole L3 and the fourth elongated hole L4 are formed from the hemming body 21, the third locking hole 243 is formed on the upper stopping piece 241, and the fourth locking hole 253 is formed on the lower stopping piece 251; herein is not intended to be limiting. The third locking hole 243 and the fourth locking hole 253 may be formed from the hemming body 21, the third elongated hole L3 may be formed on the upper stopping piece 241, and the fourth elongated hole L4 may be formed on the lower stopping piece 251.

[0029] As such, the upper stopping piece 241 is disposed in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212, and a gap between the upper stopping piece 241 and the distal port 212 is adjusted to suitably accommodate the top inward hemming edge of the binding tape; and the lower stopping piece 251 is disposed in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212, and a gap between the lower stopping piece 251 and the distal port 212 is adjusted to suitably accommodate the bottom inward hemming edge of the binding tape. Accordingly, the multidirectional adjustable hemming device 2 is operated in a manner of working with the inward hemming edges, having different dimensions, of the binding tape, and the operation convenience of the multidirectional adjustable hemming device 2 is facilitated, and a situation of a different inward hemming dimension of the binding tape requiring a placement of a different hemming device is avoided.

[0030] The upper adjustable hemming member 22, the lower adjustable hemming member 23, the upper stopping member 24, and the lower stopping member 25 are individually adjustable relative to the distal port 212; the top inward hemming edge and the bottom inward hemming edge of the binding tape may be hemmed to be in the same dimension or different dimensions according to hemming requirements. As such, compared to the top inward hemming edge and the bottom inward hemming edge of the related-art binding tape only being hemmed in a fixed dimension, the multidirectional adjustable hemming device 2 provided by the present disclosure has an advantage of hemming the top inward hemming edge and the bottom inward hemming edge of the binding tape in different dimensions.

[0031] As shown in FIG. 1, FIG. 2, FIG. 4 and FIG. 6, the hemming body 21 has a positioning piece 218 extended from a rear side thereof and stacked on the fasten seat 1. The positioning piece 218 has a fifth elongated hole L5. The multidirectional adjustable hemming device 2 further includes one or a plurality of fifth fastening members 26. An amount of the fifth fastening member 26 is the same as an amount of the first positioning hole 12. According to one embodiment of the present disclosure, the amount of the fifth fastening member 26 is two and the amount of the first positioning hole 12 is two; herein is not intended to be limiting. Each of the fifth fastening members 26 penetrates the fifth elongated hole L5 to be locked in each of the first positioning holes 12, and thus a position of the positioning piece 218 is stably locked via two locking points, and a situation of the positioning piece 218 only having single locking point is prevented, and rotations of the positioning piece 218 are avoided.

[0032] As shown in FIG. 1, FIG. 2, FIG. 4 and FIG. 6, the multidirectional adjustable hemming device 2 further includes an angle limiting rack 27 and a sixth fastening member 28. The angle limiting rack 27 is stacked on the fasten seat 1, and a shape defined at an inner side of the angle limiting rack 27 is the same as a shape defined at an outer side of the positioning piece 218, and thus the angle limiting rack 27 is adjacently arranged at the outer side of the positioning piece 218. The angle limiting rack 27 has a first round hole 271 and a second round hole 272 communicating with each other. A caliber of the second round hole 272 is greater than a caliber of the first round hole 271, and the sixth fastening member 28 selectively penetrates the first round hole 271 or the second round hole 272 to be positioned in the second positioning hole 13.

[0033] As such, an elongated hole is formed through the first round hole 271 communicating with the second round hole 272, and thus the angle limiting rack 27 rotates and displaces with a greater level relative to the fasten seat 1, meanwhile the positioning piece 218 rotates and displaces with a slight level relative to the fasten seat 1, and the multidirectional adjustable hemming device 2 is disposed in a manner of a position thereof relative to the needle threading hole 11 and the sewing needle being adjustable to be closer to or farther from the needle threading hole 11 and the sewing needle, a stitching length formed through the binding tape being sewed is adjustable, thereby facilitating the operation convenience of the multidirectional adjustable hemming device 2.

[0034] Please refer to FIG. 5 and FIG. 6; the edge binding device used for sewing 10 further includes a presser foot 3. The presser foot 3 is disposed on the fasten seat 1. The presser foot 3 has an L-shaped press string 31 extended from a distal end thereof and disposed corresponding to the distal port 212. The L-shaped press string 31 has a first inner side 32 and a second inner side 33 which are perpendicular to each other. The first inner side 32 has a first notch 321 opposite to the needle threading hole 11. The second inner side 33 has a second notch 331.

[0035] As such, the first notch 321 allows the sewing needle to be disposed. An inner side of the L-shaped press string 31 and the second notch 331 allow the binding tape to be disposed. A through hole formed at an inner side of the L-shaped press string 31 communicates with the first notch 321 and the second notch 331. Compared to single hole provided by the related-art design, the first notch 321 of the present disclosure provides more space to make the sewing needle be disposed; if the through hole at the inner side of the L-shaped press string 31 is not enough to make the binding tape be disposed, the binding tape moves towards the second notch 331, and thus a situation of the sewing stitches of the binding tape being burst is avoided.

[0036] According to the present disclosure, the multidirectional adjustable hemming device 2 is provided with effects of adjusting dimensions, such as the stitching length and the thickness, of the inward hemmed binding tape; the multidirectional adjustable hemming device 2 is operated in a manner of working the inward hemming edges, having different dimensions, of the binding tape; and a situation of the sewing stitches of the binding tape being burst is avoided via the presser foot 3. As such, the edge binding device used for sewing 10 provided by the present disclosure has following advantages. An effect of increasing the multidirectional adjusting capability is provided; a function of making the binding tape with various thicknesses and curved angles be slightly adjusted in the stitching length and the direction; and the sewing stitches are unified and closely matched with the sewing route design. A limitation of one machine only for one sewing purpose is improved, meanwhile the sewing precision and efficiency are increased. The requirements of an automated production line are satisfied, and the sewing precision and the quality of the finished product are ensured.

[0037] While this disclosure has been described by means of specific embodiments, numerous modifications and variations may be made thereto by those skilled in the art without departing from the scope and spirit of this disclosure set forth in the claims.

Examples

Embodiment Construction

[0016]The technical contents of this disclosure will become apparent with the detailed description of embodiments accompanied with the illustration of related drawings as follows. It is intended that the embodiments and drawings disclosed herein are to be considered illustrative rather than restrictive.

[0017]Please refer to FIG. 1 to FIG. 6; the present disclosure provides an edge binding device used for sewing and a multidirectional adjustable hemming device thereof. The edge binding device used for sewing 10 mainly includes a fasten seat 1 and a multidirectional adjustable hemming device 2. The multidirectional adjustable hemming device 2 mainly includes a hemming body 21, an upper adjustable hemming member 22 and a lower adjustable hemming member 23.

[0018]As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 6, the fasten seat 1 is integrally disposed on a sewing platform (not shown in figures) as one piece to make the fasten seat 1 be a part of the sewing platform or fastened with...

BACKGROUND OF THE DISCLOSURETECHNICAL FIELD

[0001] The present disclosure relates to an edge binding device used for sewing, especially to an edge binding device used for sewing and a multidirectional adjustable hemming device thereof.DESCRIPTION OF RELATED ART

[0002] A related-art edge binding technique is often required when a textile product, such as a cloth, a bedding product or an accessory, is fabricated. The edge binding technique may adopt a hemming device for assistance, and thus a binding tape may be smoothly sewed at an edge of the textile product, such as the cloth, the bedding product or the accessory via the hemming device. As such, the edge binding efficiency of the binding tape is greatly increased.

[0003] However, an edge binding performance is hard to control when the related-art hemming device is applied at a bent area or an area having a great curvature. A feeding direction of the binding tape is easily affected by a thickness of a fabric or a radius of the curvature, and thus the feeding direction is frequently adjusted during the sewing process and risks of making mistakes may be increased. The binding tape may be accumulated because the hemming device is disposed too close to a presser foot, and thus the sewing stitches may be ununified or even broken.

[0004] Moreover, a higher sewing precision is especially required at an area having a great curvature or at a curved area with a small radius; the constant changes at the bending directions require the sewing equipment to rapidly adjust the direction of the sewing stitches to make sure the sewing stitches are unified and closely matched with the designed route. As such, how to develop a hemming device having a function of precisely adjusting the location of the binding tape in a multidirectional manner shall be improved.

[0005] Accordingly, the applicant of the present disclosure has devoted himself to improve the mentioned issues.SUMMARY OF THE DISCLOSURE

[0006] An objective of the present disclosure is to provide an edge binding device used for sewing and a multidirectional adjustable hemming device thereof, in which an upper adjustable hemming member and a lower adjustable hemming member have a function of adjusting an inward hemmed dimension, such as a stitching length and a thickness, of a binding tape, and thus the operation convenience of the multidirectional adjustable hemming device is facilitated.

[0007] In order to achieve the above objective, the present disclosure provides an edge binding device used for sewing, which includes: a fasten seat including a needle threading hole, and a multidirectional adjustable hemming device including a hemming body adjustably fastened on the fasten seat and having a hemming guide slot and a distal port disposed at a distal end of the hemming guide slot and located corresponding to the needle threading hole; an upper adjustable hemming member disposed in an upper segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port; and a lower adjustable hemming member disposed in a lower segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port.

[0008] In order to achieve the above objective, the present disclosure provides a multidirectional adjustable hemming device, which is applied on a fasten seat and includes: a hemming body adjustably fastened on the fasten seat and having a hemming guide slot and a distal port disposed at a distal end of the hemming guide slot; an upper adjustable hemming member disposed in an upper segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port; and a lower adjustable hemming member disposed in a lower segment of the hemming guide slot and fastened with the hemming body in a manner of a location thereof relative to the distal port being adjustable to be closer to or farther from the distal port.

[0009] Based on what has been disclosed above, the present disclosure has following advantages. The upper adjustable hemming member is disposed in a manner of the location thereof relative to the distal port being adjustable to be closer to or farther from the distal port, and thus a caliber of a through hole defined by being surrounded by the upper adjustable hemming member, the hemming guide slot and the distal port controls a size and a thickness of a top edge of a binding tape to be inwardly hemmed. The lower adjustable hemming member is disposed in a manner of the location thereof relative to the distal port being adjustable to be closer to or farther from the distal port, and thus a caliber of a through hole defined by being surrounded by the lower adjustable hemming member, the hemming guide slot and the distal port controls a size and a thickness of a bottom edge of the binding tape to be inwardly hemmed, and thus the multidirectional adjustable hemming device is provided with effects of adjusting dimensions, such as the stitching length and the thickness, of the binding tape being inwardly hemmed, and the operation convenience of the multidirectional adjustable hemming device is facilitated, and a situation of a different inward hemming dimension of the binding tape requiring a placement of a different hemming device is avoided.BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG. 1 is a perspective view showing the assembly of the edge binding device used for sewing according to the present disclosure;

[0011] FIG. 2 is a perspective exploded view showing the edge binding device used for sewing according to the present disclosure;

[0012] FIG. 3 is a front view showing the assembly of the edge binding device used for sewing according to the present disclosure;

[0013] FIG. 4 is a top view showing the assembly of the edge binding device used for sewing according to the present disclosure;

[0014] FIG. 5 is a perspective view showing the presser foot according to the present disclosure; and

[0015] FIG. 6 is another perspective view showing the assembly of the edge binding device used for sewing according to the present disclosure.DETAILED DESCRIPTION OF THE DISCLOSURE

[0016] The technical contents of this disclosure will become apparent with the detailed description of embodiments accompanied with the illustration of related drawings as follows. It is intended that the embodiments and drawings disclosed herein are to be considered illustrative rather than restrictive.

[0017] Please refer to FIG. 1 to FIG. 6; the present disclosure provides an edge binding device used for sewing and a multidirectional adjustable hemming device thereof. The edge binding device used for sewing 10 mainly includes a fasten seat 1 and a multidirectional adjustable hemming device 2. The multidirectional adjustable hemming device 2 mainly includes a hemming body 21, an upper adjustable hemming member 22 and a lower adjustable hemming member 23.

[0018] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 6, the fasten seat 1 is integrally disposed on a sewing platform (not shown in figures) as one piece to make the fasten seat 1 be a part of the sewing platform or fastened with the sewing platform. The fasten seat 1 has a needle threading hole 11, one or a plurality of first positioning holes 12 and one or a plurality of second positioning holes 13. The needle threading hole 11 allows a sewing needle (not shown in figures) of a sewer to pass through.

[0019] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 6, the hemming body 21 is adjustably fastened on the fasten seat 1. The hemming body 21 has a hemming guide slot 211 and a distal port 212 disposed at a distal end of the hemming guide slot 211 and located corresponding to the needle threading hole 11. A binding tape (not shown in figures) is introduced into the hemming guide slot 211 and guided by a configuration of the hemming guide slot 211; and the binding tape is in a hemmed status after being protruded from the distal port 212 to be sewed by the sewing needle in a later stage. The hemming body 21 has one or a plurality of first locking holes 213 and one or a plurality of second locking holes 214.

[0020] Details are provided as follows. The hemming guide slot 211 has a reversed C-shaped inner wall 215. The hemming body 21 has an opening 216 disposed at a front side thereof and communicating with the hemming guide slot 211 and the distal port 212. The hemming body 21 has a convex piece 217 extended from an inner circumference of the opening 216 and opposite to a middle segment of the reversed C-shaped inner wall 215, and the first locking hole 213 and the second locking hole 214 are formed on the convex piece 217.

[0021] As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 6, the upper adjustable hemming member 22 is disposed in an upper segment of the hemming guide slot 211 and fastened with the hemming body 21 in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212; and the lower adjustable hemming member 23 is disposed in a lower segment of the hemming guide slot 211 and fastened with the hemming body 21 in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212.

[0022] Details are provided as follows. The upper adjustable hemming member 22 includes a reversed L-shaped upper hemming piece 221 and one or a plurality of first fastening members 222, and an amount of the first fastening member 222 is the same as an amount of the first locking hole 213. The reversed L-shaped upper hemming piece 221 is disposed in the upper segment of the hemming guide slot 211, and the reversed L-shaped upper hemming piece 221 has a first elongated hole L1. The lower adjustable hemming member 23 includes a reversed L-shaped lower hemming piece 231 and one or a plurality of second fastening members 232, and an amount of the second fastening member 232 is the same as an amount of the second locking hole 214. The reversed L-shaped lower hemming piece 231 is disposed in the lower segment of the hemming guide slot 211, and the reversed L-shaped lower hemming piece 231 has a second elongated hole L2.

[0023] According to one embodiment of the present disclosure, the amount of the first locking hole 213 is two and the amount of the second locking hole 214 is two; herein is not intended to be limiting. When the amount of the first locking hole 213, the amount of the second locking hole 214, the amount of the first fastening member 222 and the amount of the second fastening member 232 are two, each of the first fastening members 222 penetrates the first elongated hole L1 to be locked in each of the first locking holes 213, and each of the second fastening members 232 penetrates the second elongated hole L2 to be locked in each of the second locking holes 214, and thus a position of the reversed L-shaped upper hemming piece 221 and a location of the reversed L-shaped lower hemming piece 231 are stably locked via two locking points, and a situation of the reversed L-shaped upper hemming piece 221 and the reversed L-shaped lower hemming piece 231 only having single locking point is prevented, and rotations of the reversed L-shaped upper hemming piece 221 and rotations of the reversed L-shaped lower hemming piece 231 are avoided.

[0024] One end of the reversed L-shaped upper hemming piece 221 is disposed with the first elongated hole L1 and opposite to the convex piece 217, and another end of the reversed L-shaped upper hemming piece 221 is extended with an upper inclined wing segment 223 protruding into the opening 216, opposite to an upper segment of the reversed C-shaped inner wall 215 and gradually inclined towards the distal port 212. One end of the reversed L-shaped lower hemming piece 231 is disposed with the second elongated hole L2 and opposite to the convex piece 217, and another end of the reversed L-shaped lower hemming piece 231 is extended with a lower inclined wing segment 233 protruding into the opening 216, opposite to a lower segment of the reversed C-shaped inner wall 215 and gradually inclined towards the distal port 212.

[0025] Accordingly, the upper inclined wing segment 223 is disposed in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212, and thus a caliber of a through hole defined by being surrounded by the upper inclined wing segment 223, the reversed C-shaped inner wall 215 and the distal port 212 controls a size and a thickness of a top edge of the binding tape to be inwardly hemmed. The lower inclined wing segment 233 is disposed in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212, and thus a caliber of a through hole defined by being surrounded by the lower inclined wing segment 233, the reversed C-shaped inner wall 215 and the distal port 212 controls a size and a thickness of a bottom edge of the binding tape to be inwardly hemmed, and thus the multidirectional adjustable hemming device 2 is provided with effects of adjusting dimensions, such as the stitching length and the thickness, of the binding tape being inwardly hemmed, and the operation convenience of the multidirectional adjustable hemming device 2 is facilitated, and a situation of a different inward hemming dimension of the binding tape requiring a placement of a different hemming device is avoided.

[0026] The multidirectional adjustable hemming device 2 further includes an upper stopping member 24 and a lower stopping member 25. The upper stopping member 24 is disposed at an outer side defined in an upper segment of the distal port 212 and fastened with the hemming body 21 in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212. The lower stopping member 25 is disposed at an outer side defined in a lower segment of the distal port 212 and fastened with the hemming body 21 in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212.

[0027] Details are provided as follows. The upper stopping member 24 includes an upper stopping piece 241 and a third fastening member 242. One of the hemming body 21 and the upper stopping piece 241 has a third locking hole 243 and the other has a third elongated hole L3. The third fastening member 242 penetrates the third elongated hole L3 to be locked in the third locking hole 243. The lower stopping member 25 includes a lower stopping piece 251 and a fourth fastening member 252. One of the hemming body 21 and the lower stopping piece 251 has a fourth locking hole 253 and the other has a fourth elongated hole L4. The fourth fastening member 252 penetrates the fourth elongated hole L4 to be locked in the fourth locking hole 253.

[0028] According to one embodiment of the present disclosure, the third elongated hole L3 and the fourth elongated hole L4 are formed from the hemming body 21, the third locking hole 243 is formed on the upper stopping piece 241, and the fourth locking hole 253 is formed on the lower stopping piece 251; herein is not intended to be limiting. The third locking hole 243 and the fourth locking hole 253 may be formed from the hemming body 21, the third elongated hole L3 may be formed on the upper stopping piece 241, and the fourth elongated hole L4 may be formed on the lower stopping piece 251.

[0029] As such, the upper stopping piece 241 is disposed in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212, and a gap between the upper stopping piece 241 and the distal port 212 is adjusted to suitably accommodate the top inward hemming edge of the binding tape; and the lower stopping piece 251 is disposed in a manner of a location thereof relative to the distal port 212 being adjustable to be closer to or farther from the distal port 212, and a gap between the lower stopping piece 251 and the distal port 212 is adjusted to suitably accommodate the bottom inward hemming edge of the binding tape. Accordingly, the multidirectional adjustable hemming device 2 is operated in a manner of working with the inward hemming edges, having different dimensions, of the binding tape, and the operation convenience of the multidirectional adjustable hemming device 2 is facilitated, and a situation of a different inward hemming dimension of the binding tape requiring a placement of a different hemming device is avoided.

[0030] The upper adjustable hemming member 22, the lower adjustable hemming member 23, the upper stopping member 24, and the lower stopping member 25 are individually adjustable relative to the distal port 212; the top inward hemming edge and the bottom inward hemming edge of the binding tape may be hemmed to be in the same dimension or different dimensions according to hemming requirements. As such, compared to the top inward hemming edge and the bottom inward hemming edge of the related-art binding tape only being hemmed in a fixed dimension, the multidirectional adjustable hemming device 2 provided by the present disclosure has an advantage of hemming the top inward hemming edge and the bottom inward hemming edge of the binding tape in different dimensions.

[0031] As shown in FIG. 1, FIG. 2, FIG. 4 and FIG. 6, the hemming body 21 has a positioning piece 218 extended from a rear side thereof and stacked on the fasten seat 1. The positioning piece 218 has a fifth elongated hole L5. The multidirectional adjustable hemming device 2 further includes one or a plurality of fifth fastening members 26. An amount of the fifth fastening member 26 is the same as an amount of the first positioning hole 12. According to one embodiment of the present disclosure, the amount of the fifth fastening member 26 is two and the amount of the first positioning hole 12 is two; herein is not intended to be limiting. Each of the fifth fastening members 26 penetrates the fifth elongated hole L5 to be locked in each of the first positioning holes 12, and thus a position of the positioning piece 218 is stably locked via two locking points, and a situation of the positioning piece 218 only having single locking point is prevented, and rotations of the positioning piece 218 are avoided.

[0032] As shown in FIG. 1, FIG. 2, FIG. 4 and FIG. 6, the multidirectional adjustable hemming device 2 further includes an angle limiting rack 27 and a sixth fastening member 28. The angle limiting rack 27 is stacked on the fasten seat 1, and a shape defined at an inner side of the angle limiting rack 27 is the same as a shape defined at an outer side of the positioning piece 218, and thus the angle limiting rack 27 is adjacently arranged at the outer side of the positioning piece 218. The angle limiting rack 27 has a first round hole 271 and a second round hole 272 communicating with each other. A caliber of the second round hole 272 is greater than a caliber of the first round hole 271, and the sixth fastening member 28 selectively penetrates the first round hole 271 or the second round hole 272 to be positioned in the second positioning hole 13.

[0033] As such, an elongated hole is formed through the first round hole 271 communicating with the second round hole 272, and thus the angle limiting rack 27 rotates and displaces with a greater level relative to the fasten seat 1, meanwhile the positioning piece 218 rotates and displaces with a slight level relative to the fasten seat 1, and the multidirectional adjustable hemming device 2 is disposed in a manner of a position thereof relative to the needle threading hole 11 and the sewing needle being adjustable to be closer to or farther from the needle threading hole 11 and the sewing needle, a stitching length formed through the binding tape being sewed is adjustable, thereby facilitating the operation convenience of the multidirectional adjustable hemming device 2.

[0034] Please refer to FIG. 5 and FIG. 6; the edge binding device used for sewing 10 further includes a presser foot 3. The presser foot 3 is disposed on the fasten seat 1. The presser foot 3 has an L-shaped press string 31 extended from a distal end thereof and disposed corresponding to the distal port 212. The L-shaped press string 31 has a first inner side 32 and a second inner side 33 which are perpendicular to each other. The first inner side 32 has a first notch 321 opposite to the needle threading hole 11. The second inner side 33 has a second notch 331.

[0035] As such, the first notch 321 allows the sewing needle to be disposed. An inner side of the L-shaped press string 31 and the second notch 331 allow the binding tape to be disposed. A through hole formed at an inner side of the L-shaped press string 31 communicates with the first notch 321 and the second notch 331. Compared to single hole provided by the related-art design, the first notch 321 of the present disclosure provides more space to make the sewing needle be disposed; if the through hole at the inner side of the L-shaped press string 31 is not enough to make the binding tape be disposed, the binding tape moves towards the second notch 331, and thus a situation of the sewing stitches of the binding tape being burst is avoided.

[0036] According to the present disclosure, the multidirectional adjustable hemming device 2 is provided with effects of adjusting dimensions, such as the stitching length and the thickness, of the inward hemmed binding tape; the multidirectional adjustable hemming device 2 is operated in a manner of working the inward hemming edges, having different dimensions, of the binding tape; and a situation of the sewing stitches of the binding tape being burst is avoided via the presser foot 3. As such, the edge binding device used for sewing 10 provided by the present disclosure has following advantages. An effect of increasing the multidirectional adjusting capability is provided; a function of making the binding tape with various thicknesses and curved angles be slightly adjusted in the stitching length and the direction; and the sewing stitches are unified and closely matched with the sewing route design. A limitation of one machine only for one sewing purpose is improved, meanwhile the sewing precision and efficiency are increased. The requirements of an automated production line are satisfied, and the sewing precision and the quality of the finished product are ensured.

[0037] While this disclosure has been described by means of specific embodiments, numerous modifications and variations may be made thereto by those skilled in the art without departing from the scope and spirit of this disclosure set forth in the claims.

Examples

Embodiment Construction

[0016]The technical contents of this disclosure will become apparent with the detailed description of embodiments accompanied with the illustration of related drawings as follows. It is intended that the embodiments and drawings disclosed herein are to be considered illustrative rather than restrictive.

[0017]Please refer to FIG. 1 to FIG. 6; the present disclosure provides an edge binding device used for sewing and a multidirectional adjustable hemming device thereof. The edge binding device used for sewing 10 mainly includes a fasten seat 1 and a multidirectional adjustable hemming device 2. The multidirectional adjustable hemming device 2 mainly includes a hemming body 21, an upper adjustable hemming member 22 and a lower adjustable hemming member 23.

[0018]As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 6, the fasten seat 1 is integrally disposed on a sewing platform (not shown in figures) as one piece to make the fasten seat 1 be a part of the sewing platform or fastened with...

Claims

1. An edge binding device used for sewing, comprising:a fasten seat, comprising a needle threading hole; anda multidirectional adjustable hemming device, comprisinga hemming body, adjustably fastened on the fasten seat and comprising a hemming guide slot and a distal port disposed at a distal end of the hemming guide slot and located corresponding to the needle threading hole;an upper adjustable hemming member disposed in an upper segment of the hemming guide slot and fastened with the hemming body in a manner of a location of the upper adjustable hemming member relative to the distal port being adjustable to be closer to or farther from the distal port; anda lower adjustable hemming member disposed in a lower segment of the hemming guide slot and fastened with the hemming body in a manner of a location of the lower adjustable hemming member relative to the distal port being adjustable to be closer to or farther from the distal port.

2. The edge binding device used for sewing according to claim 1, wherein the hemming body comprises at least one first locking hole and at least one second locking hole, the upper adjustable hemming member comprises a reversed L-shaped upper hemming piece and at least one first fastening member, the reversed L-shaped upper hemming piece is disposed in the upper segment of the hemming guide slot, the reversed L-shaped upper hemming piece comprises a first elongated hole, and the at least one first fastening member penetrates the first elongated hole to be locked in the at least one first locking hole; the lower adjustable hemming member comprises a reversed L-shaped lower hemming piece and at least one second fastening member, the reversed L-shaped lower hemming piece is disposed in the lower segment of the hemming guide slot, the reversed L-shaped lower hemming piece comprises a second elongated hole, and the at least one second fastening member penetrates the second elongated hole to be locked in the at least one second locking hole.

3. The edge binding device used for sewing according to claim 2, wherein the hemming guide slot comprises a reversed C-shaped inner wall, the hemming body comprises an opening disposed at a front side of the hemming body and communicating with the hemming guide slot and the distal port, the hemming body comprises a convex piece extended from an inner circumference of the opening and disposed opposite to a middle segment of the reversed C-shaped inner wall, and the at least one first locking hole and the at least one second locking hole are formed on the convex piece.

4. The edge binding device used for sewing according to claim 3, wherein one end of the reversed L-shaped upper hemming piece is disposed with the first elongated hole and arranged opposite to the convex piece, and another end of the reversed L-shaped upper hemming piece is extended with an upper inclined wing segment protruding into the opening, disposed opposite to an upper segment of the reversed C-shaped inner wall and gradually inclined towards the distal port; one end of the reversed L-shaped lower hemming piece is disposed with the second elongated hole and arranged opposite to the convex piece, and another end of the reversed L-shaped lower hemming piece is extended with a lower inclined wing segment protruding into the opening, disposed opposite to a lower segment of the reversed C-shaped inner wall and gradually inclined towards the distal port.

5. The edge binding device used for sewing according to claim 1, wherein the multidirectional adjustable hemming device further comprises an upper stopping member and a lower stopping member, and the upper stopping member is disposed at an outer side defined in an upper segment of the distal port and fastened with the hemming body in a manner of a location of the upper stopping member relative to the distal port being adjustable to be closer to or farther from the distal port; the lower stopping member is disposed at an outer side defined in a lower segment of the distal port and fastened with the hemming body in a manner of a location of the lower stopping member relative to the distal port being adjustable to be closer to or farther from the distal port.

6. The edge binding device used for sewing according to claim 5, wherein the upper stopping member comprises an upper stopping piece and a third fastening member, one of the hemming body and the upper stopping piece comprises a third locking hole and the other comprises a third elongated hole, and the third fastening member penetrates the third elongated hole to be locked in the third locking hole; the lower stopping member comprises a lower stopping piece and a fourth fastening member, one of the hemming body and the lower stopping piece comprises a fourth locking hole and the other comprises a fourth elongated hole, and the fourth fastening member penetrates the fourth elongated hole to be locked in the fourth locking hole.

7. The edge binding device used for sewing according to claim 1, wherein the fasten seat comprises at least one first positioning hole, the hemming body comprises a positioning piece extended from a rear side of the hemming body and stacked on the fasten seat, the positioning piece comprises a fifth elongated hole, the multidirectional adjustable hemming device further comprises at least one fifth fastening member, and the at least one fifth fastening member penetrates the fifth elongated hole to be locked in the at least one first positioning hole.

8. The edge binding device used for sewing according to claim 7, wherein the fasten seat comprises a second positioning hole, the multidirectional adjustable hemming device further comprises an angle limiting rack and a sixth fastening member, the angle limiting rack is stacked on the fasten seat and adjacently arranged at an outer side of the positioning piece, the angle limiting rack comprises a first round hole and a second round hole communicating with each other, a caliber of the second round hole is greater than a caliber of the first round hole, and the sixth fastening member penetrates the first round hole or the second round hole to be positioned in the second positioning hole.

9. The edge binding device used for sewing according to claim 1, further comprising a presser foot, the presser foot is disposed on the fasten seat, the presser foot comprises a L-shaped press string extended from a distal end of the presser foot and disposed corresponding to the distal port, the L-shaped press string comprises a first inner side and a second inner side which are perpendicular to each other, the first inner side comprises a first notch opposite to the needle threading hole, and the second inner side comprises a second notch.

10. A multidirectional adjustable hemming device, applied on a fasten seat and comprising:a hemming body, adjustably fastened on the fasten seat and comprising a hemming guide slot and a distal port disposed at a distal end of the hemming guide slot;an upper adjustable hemming member, disposed in an upper segment of the hemming guide slot and fastened with the hemming body in a manner of a location of the upper adjustable hemming member relative to the distal port being adjustable to be closer to or farther from the distal port; anda lower adjustable hemming member, disposed in a lower segment of the hemming guide slot and fastened with the hemming body in a manner of a location of the lower adjustable hemming member relative to the distal port being adjustable to be closer to or farther from the distal port.

11. The multidirectional adjustable hemming device according to claim 10, wherein the hemming body comprises at least one first locking hole and at least one second locking hole, the upper adjustable hemming member comprises a reversed L-shaped upper hemming piece and at least one first fastening member, the reversed L-shaped upper hemming piece is disposed in the upper segment of the hemming guide slot, the reversed L-shaped upper hemming piece comprises a first elongated hole, and the at least one first fastening member penetrates the first elongated hole to be locked in the at least one first locking hole; the lower adjustable hemming member comprises a reversed L-shaped lower hemming piece and at least one second fastening member, the reversed L-shaped lower hemming piece is disposed in the lower segment of the hemming guide slot, the reversed L-shaped lower hemming piece comprises a second elongated hole, and the at least one second fastening member penetrates the second elongated hole to be locked in the at least one second locking hole.

12. The multidirectional adjustable hemming device according to claim 11, wherein the hemming guide slot comprises a reversed C-shaped inner wall, the hemming body comprises an opening disposed at a front side of the hemming body and communicating with the hemming guide slot and the distal port, the hemming body comprises a convex piece extended from an inner circumference of the opening and disposed opposite to a middle segment of the reversed C-shaped inner wall, and the at least one first locking hole and the at least one second locking hole are formed on the convex piece.

13. The multidirectional adjustable hemming device according to claim 12, wherein one end of the reversed L-shaped upper hemming piece is disposed with the first elongated hole and arranged opposite to the convex piece, and another end of the reversed L-shaped upper hemming piece is extended with an upper inclined wing segment protruding into the opening, disposed opposite to an upper segment of the reversed C-shaped inner wall and gradually inclined towards the distal port; one end of the reversed L-shaped lower hemming piece is disposed with the second elongated hole and arranged opposite to the convex piece, and another end of the reversed L-shaped lower hemming piece is extended with a lower inclined wing segment protruding into the opening, disposed opposite to a lower segment of the reversed C-shaped inner wall and gradually inclined towards the distal port.

14. The multidirectional adjustable hemming device according to claim 10, further comprising an upper stopping member and a lower stopping member, the upper stopping member is disposed at an outer side defined in an upper segment of the distal port and fastened with the hemming body in a manner of a location of the upper stopping member relative to the distal port being adjustable to be closer to or farther from the distal port, and the lower stopping member is disposed at an outer side defined in a lower segment of the distal port and fastened with the hemming body in a manner of a location of the lower stopping member relative to the distal port being adjustable to be closer to or farther from the distal port.

15. The multidirectional adjustable hemming device according to claim 14, wherein the upper stopping member comprises an upper stopping piece and a third fastening member, one of the hemming body and the upper stopping piece comprises a third locking hole and the other comprises a third elongated hole, and the third fastening member penetrates the third elongated hole to be locked in the third locking hole; the lower stopping member comprises a lower stopping piece and a fourth fastening member, one of the hemming body and the lower stopping piece comprises a fourth locking hole and the other comprises a fourth elongated hole, and the fourth fastening member penetrates the fourth elongated hole to be locked in the fourth locking hole.

16. The multidirectional adjustable hemming device according to claim 10, wherein the fasten seat comprises at least one first positioning hole, the hemming body comprises a positioning piece extended from a rear side of the hemming body and stacked on the fasten seat, the positioning piece comprises a fifth elongated hole, the multidirectional adjustable hemming device further comprises at least one fifth fastening member, and the at least one fifth fastening member penetrates the fifth elongated hole to be locked in the at least one first positioning hole.

17. The multidirectional adjustable hemming device according to claim 16, further comprising an angle limiting rack and a sixth fastening member, the fasten seat comprises a second positioning hole, the angle limiting rack is stacked on the fasten seat and adjacently arranged at an outer side of the positioning piece, the angle limiting rack comprises a first round hole and a second round hole communicating with each other, a caliber of the second round hole is greater than a caliber of the first round hole, and the sixth fastening member penetrates the first round hole or the second round hole to be positioned in the second positioning hole.

Images