JP4405073B2 - Cloth holding device for sewing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cloth pressing device of a sewing apparatus, and more particularly to a cloth pressing device of a sewing apparatus suitable for butt sewing of a thick fabric.
[0002]
[Prior art]
When a fabric such as a brassiere that has a thickness such as a non-woven fabric and is cushioned and is butt-stitched, the fabric feed section facing the fabric sandwiching the presser foot of the sewing device Since it acts only on the lower surface (the cloth feed portion side portion), there is a problem that the positional relationship between the upper surface of the fabric (the presser foot side) and the lower surface is shifted. In addition, even when there is a thickness and the hardness of the fabric on the upper surface side and the lower surface side of the fabric is different, there is a problem that the positional relationship between the upper surface and the lower surface of the fabric is shifted and the fabric is picked.
[0003]
Conventionally, in order to prevent such a positional shift between the upper surface and the lower surface of the fabric, in the case of a thick fabric, the stitching is performed after a step of sewing the edge portion of the stitched portion in advance.
[0004]
If the process of sewing the edge part of the stitched part in advance is performed, the number of processes will increase, the manufacturing process will become complicated, and it will also affect the feel of the cloth of the stitched part. There is also a method of placing a roller that is pressed against the upper surface of the fabric, but since the pressure is applied across both fabrics that one roller abuts, the pressure is not applied evenly in the case of fabrics with different thicknesses. There are also problems such as pressure not being applied to the fabric and excessive pressing, and there is also a problem that it is difficult to sew when curving.
[0005]
[Problems to be solved by the invention]
The present invention is a case where the fabric is thick and cushioned without being sewed, and the fabric is thick and the upper and lower fabrics have different hardnesses. In addition, there is no deviation in the positional relationship between the upper surface and the lower surface of the fabric at the time of stitching, and it is possible to apply pressure evenly to each fabric to be stitched, and the cloth presser of the sewing device that can easily perform curved stitching An object is to provide an apparatus.
[0006]
[Means for Solving the Problems]
The cloth presser device of the sewing device according to claim 1 of the present invention comprises a mounting portion to the sewing device main body and a presser portion that holds down the fabric during sewing, and the rear end of the presser portion in the cloth feed direction according to the thickness of the fabric A presser foot that can move up and down, and a roller that is disposed behind the pressering portion in the cloth feed direction and that presses against the upper surface of the cloth, and the roller is divided into two parts on the sewing line. Each roller member has a roller member moving mechanism capable of moving the roller member up and down separately according to the thickness of the fabric.
[0007]
By providing a roller that presses the upper surface of the cloth in front of the pressing portion in the cloth feeding direction, the cloth has a thickness and a cushioning property, and there is a thickness and the hardness of the cloth on the upper surface side and the lower surface side is different. When the fabrics are sewed together and stitched, the positional relationship between the upper and lower surfaces of the fabric does not shift at the time of stitching, and the roller is composed of two roller members divided into two on the sewing line. By being able to move up and down separately according to the thickness, it is possible to apply pressure evenly to each fabric to be sewn, and it is also possible to easily perform curvilinear stitching.
[0008]
Further, the cloth presser device of the sewing device according to the present invention includes a holding portion that the roller member rotatably holds each roller member, and is attached to the side portion of the pressing portion so as to be rotatable around the shaft portion. The holding part is formed by a holding member including an overhanging part that protrudes above the pressing part at the tip part in the cloth feeding direction of the part, and an inclined surface is formed on the upper surface of the tip part in the cloth feeding direction of the pressing part, and the bottom surface of the protruding part And the inclined surface can be formed, and the roller member can move up and down separately from the pressing portion.
[0009]
By attaching the roller member to the pressing portion with the above-described configuration, the pressure by the roller member is finely adjusted and becomes more uniform.
[0010]
The cloth presser of the sewing apparatus according to claim 2 of the present invention is the cloth presser of the sewing apparatus according to claim 1, wherein the presser portion is composed of two presser members divided into two on the sewing line, and the thickness of the cloth is increased. Accordingly, it is possible to raise and lower the rear end of each pressing member in the cloth feeding direction.
[0011]
Furthermore, the presser part is also composed of two presser members divided into two on the sewing line, and if the rear end part in the cloth feeding direction can be moved up and down separately according to the thickness of the cloth, fabrics having different thicknesses are particularly preferable. In the case of butting and sewing, there is no problem that the pressing portion cannot press one fabric or the pressing portion is excessively pressed, and curved stitching is easier.
[0012]
According to a third aspect of the present invention, there is provided the cloth presser of the sewing apparatus according to the second aspect, wherein the roller members are respectively attached to the presser members.
[0013]
The roller member is attached to each of the two pressing members that are divided into two on the sewing line and can be moved up and down separately according to the thickness of the cloth. Each can be moved up and down.
[0014]
A cloth presser device for a sewing apparatus according to a fourth aspect of the present invention is the cloth presser apparatus for a sewing apparatus according to any one of the first to third aspects, wherein the presser portion is in a downward direction at the rear end in the cloth feed direction. There is a restriction means for restricting the movement of the cloth and making the rear end portion in the cloth feeding direction floated from the front end portion.
[0015]
By restricting the downward movement of the front end of the cloth feed direction of the pressing portion by the regulating means, and by setting the rear end of the cloth feed direction to the state of floating from the front end, when sewing a particularly thick fabric, The pressing portion can prevent the fabric from being excessively pressed.
[0016]
The cloth presser of the sewing device according to claim 5 of the present invention is the cloth presser of the sewing device according to any one of claims 1 to 4, wherein a tape is inserted between the presser portion and the roller member. A tape feeding mechanism is provided.
[0017]
By providing a tape feeding mechanism that inserts the tape between the pressing portion and the roller member, the tape is sewn to the stitching portion at the same time during suturing, and the gap portion generated in the stitching portion when the fabric is stitched by butting is covered, The strength of the stitched portion can be improved.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings, but the present invention is not limited thereto. FIG. 1 is a perspective view of a cloth presser device of a sewing apparatus as an example of an embodiment of the present invention, and FIG. 2 is a perspective view showing a configuration of the cloth presser device of the sewing apparatus of FIG. The cloth presser 1 in FIGS. 1 and 2 includes an unillustrated attaching part 2 to the sewing apparatus main body and a presser 3 that holds down the cloth during sewing, and the presser 3 is fed in the direction of feeding (see FIG. 1) according to the thickness of the cloth. 1) (in the direction of arrow in FIG. 1) A presser foot that can move the rear end portion up and down is provided, and a roller 4 that presses the upper surface of the fabric is provided behind the presser portion 3 in the presser foot in the cloth feeding direction. The roller 4 is composed of two roller members 41 and 41 divided into two on the sewing line A, and each roller member 41 is held by a holding portion 51 of a holding member 5 described later so as to be rotatable around a shaft portion 54. And is attached to the side of the pressing portion 3 in the presser foot. A mesh pattern is formed on the surface of each roller member 41 for the purpose of preventing slippage.
[0019]
The attachment portion is attached to the sewing apparatus main body using a fixing tool such as a screw in the attachment hole 21, and the lower surface portion is formed in a curved shape.
[0020]
The pressing portion 3 includes two pressing members 31 and 31 that are divided into two on the sewing line A. As shown in FIG. 2, each pressing member 31 has an inclined surface whose thickness decreases as the lower surface of the rear end portion in the cloth feeding direction of the main body portion 32 that presses the fabric goes to the rear end portion. 32 has a guide portion 33 on the outer side of the rear end portion in the cloth feeding direction. The front end portion in the cloth feeding direction of each pressing member 31 has a large thickness, and is combined with the attachment portion 2 as a shape (34 in the drawing) in which the suture line A side is cut out. The uniting with the attachment part 2 is performed by penetrating a shaft part (not shown) through the through hole 37 formed in each pressing member 31 and the through hole 23 formed in the attachment part. Since the lower surface of the attachment portion 2 is formed in a curved surface, each pressing member 31 can be slightly rotated about the shaft portion as a rotation shaft, and the rear end portion in the cloth feeding direction can be moved up and down according to the thickness of the fabric. It is. The screw member 6 is inserted into the through hole 22 provided in the attachment portion 2, protrudes from the lower surface of the attachment portion 2 by rotation, and is combined with the attachment portion 2 of the pressing member 31. The upper surface portion (34 in the figure) is pressed to restrict the downward movement of the rear end portion of each pressing member 31 in the cloth feed direction, so that the rear end portion in the cloth feed direction is lifted from the front end portion (regulating means). ). A spring member 7 is sandwiched between the top of the screw member 6 and the upper surface of the mounting portion 2 so that fine adjustment is possible when the screw member 6 is operated. In addition, what is necessary is just to adjust the state which floated the cloth feed direction rear end part from the front-end | tip part suitably according to the thickness of the cloth. If the fabric is lifted too much, the effect of pressing the fabric by the roller 4 is lost. However, if the fabric is not lifted depending on the thickness of the fabric, the positional relationship between the upper surface and the lower surface of the fabric is liable to occur during stitching due to excessive pressing. It's hard to be done.
[0021]
The outer side of each pressing member 31 in the cloth feeding direction has a large thickness, but the upper surface has an inclined surface 35 so that the thickness decreases toward the leading end at the leading end. A gap can be formed between the holding member 52, that is, the holding member can be slightly rotated about the shaft portion for attachment to the holding portion as a rotation shaft, so that the roller member can be moved up and down separately from the holding member 31. . The spring member 8 is inserted between the inclined surface 35 and the lower surface of the overhanging portion 52 described later to prevent the roller member from being raised too much and the effect of pressing the cloth by the roller is lost. Recesses 36 and 55 are formed in the inclined surface 35 and the lower surface of the projecting portion 52 described later, respectively, to hold the spring member 8.
[0022]
The holding member 5 that holds each roller member 41 includes a holding portion 51 that holds the roller member 41 and an overhanging portion 52 that protrudes above the pressing portion at the front end portion in the cloth feeding direction of the holding portion. The holding portion 51 holds the shaft portion of the roller member at one end portion, and a through hole 53 is provided at the other end portion, and is used for combining the mounting portion 2 and each pressing member 31 described above. By inserting a shaft portion (not shown) through the through hole 53, the shaft portion is combined with the outer side portion of the pressing member 31 in the pressing portion 3. As described above, since the gap can be formed between the inclined surface 35 formed at the front end portion of the pressing member 31 in the cloth feeding direction and the lower surface of the protruding portion 52 of the holding member 5, the holding member has the above-described shaft portion. The roller member 41 can move up and down separately from the pressing member 31 and can finely adjust the pressing state of the fabric. Further, by having the spring member 8 disposed between the inclined surface 35 and the lower surface of the overhanging portion 52 of the holding member 5, the roller member can be prevented from floating too much. As described above, the roller member movable mechanism is constituted by the rotation member 31 and the holding member 5 that can move the roller member 41 in the vertical direction.
[0023]
Moreover, the cloth pressing device of the sewing device of the present invention may include a tape feeding mechanism as shown in FIG. 3 has the same configuration as the cloth presser 1 shown in FIG. 1 except that it has a tape guide 9 as a tape feeding mechanism. The tape guide 9 in the cloth presser 1 ′ is a tape that is folded so that both end portions in the width direction face each other when the tape inserted from the upper tape insertion port 91 is fed out from the lower portion. A gap for guiding is formed. The lower portion of the tape guide 9 is fixed to the guide portion (33 in FIG. 2) of one pressing member of the pressing portion, and the tape is fed onto the suture line as the tape folded at the time of sewing is sewn on the fabric. To do.
[0024]
Next, the sewing state when using the cloth pressing device of the sewing device of the present invention will be described. FIG. 4 is a diagram showing a state in which the cloth presser of the sewing apparatus in FIG. When two cloths 10a and 10b having a large thickness and different thicknesses are brought into contact with each other and the presser foot of the cloth pressing device is arranged along the stitching line, the cloth feed of each pressing member 31 is first performed according to the thickness of each cloth. The rear end of the direction floats upward, and the cloth is pressed and not pressed too much. At this time, if an appropriate pressing state cannot be obtained only by the rotation of the pressing member 31, the rotation of the screw member 6 changes the lifting state of the rear end portion of the pressing member 31 (indicated by an arrow in FIG. 4). Regulate or remove regulation and adjust. When the stitching is started, each roller member 41 moves upward separately from the pressing member 31 in accordance with a change in the thickness of the fabric, a curved surface state, a curved state of the stitching line, and the like, and finely adjusts the pressing state of the fabric. The fabrics 10a and 10b pressed in this manner are sutured using the suture thread 13 by the needle 12 only in the abutted state without sewing the ends of the butted portions (14 in the figure). The tape 11 is supplied under the needle 12 (stitched portion) with the tape guide 9 being folded back so that both end portions in the width direction meet at the center, so as to cover the butted portions of the fabrics 10a and 10b. It can be sewn at the same time.
[0025]
The constituent material of each member constituting the cloth presser of the sewing device of the present invention is not particularly limited, and is usually formed from a material generally used for a presser foot or the like. It is preferable to form it from a material excellent in resistance.
[0026]
If the surface of the roller member can be fed in accordance with the cloth feed by the cloth feed portion of the sewing device, the surface of the roller member has a pattern even if it has a mesh-like pattern as in the above embodiment. There may be no curved surface, and it may be roughened. Further, the shape of the pattern as described above is not particularly limited.
[0027]
The cloth pressing device of the sewing device of the present invention may have other configurations as long as the operation of the present invention is not hindered.
[0028]
The cloth presser device of the sewing device of the present invention has a thickness of a nonwoven fabric or the like that forms a cup portion such as a brassiere, and further has a cushioning property, and has a thickness on the upper surface side and the lower surface side of the fabric. It can be suitably used when the fabrics having different hardnesses are butted and stitched together. Further, by using the cloth pressing device of the sewing device of the present invention, even when sewing in a curved shape, the pressure applied to the fabric changes on the right and left sides of the suture line, respectively, so that the sewing can be easily performed.
[0029]
【The invention's effect】
The cloth presser of the sewing device according to claim 1 of the present invention is a fabric having a thickness and cushioning properties, and a fabric having a thickness and having different hardness on the upper surface side and the lower surface side of the fabric. When sewing, there is no deviation in the positional relationship between the upper and lower surfaces of the fabric at the time of sewing, and it is possible to apply pressure evenly to each fabric to be stitched, and it is also easy to perform curved stitching it can.
[0030]
The cloth presser of the sewing apparatus according to claim 2 of the present invention is the cloth presser of the sewing apparatus according to claim 1, particularly when the presser part presses one of the cloths when the cloths having different thicknesses are butted together. The problem of not being able to be pressed or being over-pressed does not occur, and curved stitches are easier.
[0031]
The cloth presser of the sewing device according to claim 3 of the present invention is the cloth presser of the sewing device according to claim 2, wherein the roller members can be moved up and down with a simple configuration.
[0032]
The cloth presser of the sewing device according to claim 4 of the present invention is the cloth presser of the sewing device according to any one of claims 1 to 3, particularly when a thick fabric is sutured, the fabric is excessively large. Can be prevented.
[0033]
The cloth presser of the sewing device according to claim 5 of the present invention is the cloth presser of the sewing device according to any one of claims 1 to 4, wherein the pressure by the roller member is finely adjusted to make it more even. Become.
[0034]
The cloth presser of the sewing device according to claim 6 of the present invention is the cloth presser of the sewing device according to any one of claims 1 to 5, wherein the tape is sewn to the stitching portion at the same time as stitching, and the fabrics are butted together. Thus, it is possible to cover a void portion generated in the stitched portion when stitched, and to improve the strength of the stitched portion.
[Brief description of the drawings]
FIG. 1 is a perspective view of a cloth presser device of a sewing device as an example of an embodiment of the present invention.
FIG. 2 is a perspective view showing a configuration of a cloth presser device of the sewing device of FIG. 1;
FIG. 3 is a perspective view of a cloth presser device of a sewing device which is another example of the embodiment of the present invention.
4 is a diagram showing a use state of the cloth presser device of the sewing device of FIG. 3. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cloth pressing device 2 of sewing device Attachment part 3 Holding part 4 Roller 5 Holding member 6 Screw member 7 Spring member 21 Attachment hole 31 Holding member 41 Roller member A Suture line

Claims (5)

 A presser foot that is capable of moving the rear end of the presser in the cloth feeding direction according to the thickness of the fabric, A cloth presser device of a sewing apparatus, which is provided behind a cloth feeding direction and includes a roller that presses against the upper surface of the cloth, wherein the roller includes two roller members divided into two on a sewing line, and each roller member is Each has a roller member movable mechanism capable of separately moving the roller member up and down in accordance with the thickness of the fabric, the roller member rotatably holding each roller member, and a shaft portion on the side of the pressing portion. The holding portion is held by the holding portion by a holding member that is rotatably attached to the center, and an overhanging portion that protrudes above the holding portion at the front end portion in the cloth feeding direction of the holding portion. An inclined surface is formed on the upper surface of the front end portion in the cloth feeding direction, a gap can be formed between the lower surface of the overhanging portion and the inclined surface, and the roller member is movable up and down separately from the pressing portion. A cloth presser device of a sewing device as a feature.  The pressing portion is composed of two pressing members divided into two on a sewing line, and the rear end portion in the cloth feeding direction of each pressing member can be moved up and down separately according to the thickness of the fabric. Item 2. A cloth presser device for a sewing device according to Item 1.  The cloth pressing device of the sewing device according to claim 2, wherein the roller members are respectively attached to the pressing members.  4. The apparatus according to claim 1, further comprising a regulating unit that regulates the downward movement of the rear end portion of the pressing portion in the cloth feeding direction, and allows the rear end portion of the cloth feeding direction to float from the tip portion. A cloth presser device for a sewing device according to claim 1.  The cloth pressing device for a sewing apparatus according to any one of claims 1 to 4, further comprising a tape feeding mechanism for inserting a tape between the pressing portion and the roller member.

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