JPH0730976U - Sewing machine different tape guide device - Google Patents

Abstract

(57) [Summary] [Purpose] At least the second of the first and second tapes.
Even if the tape width is variable, the first and second tapes and the cloth can be correspondingly sewn together correspondingly, and the sewing process can be made one process to reduce the cost. It is possible to change the needle drop position with respect to at least the second tape of the first tape and the second tape. [Structure] A first tape guide through passage A that is provided on the front side of the needle drop point and inclines toward the needle drop point side from the upper surface toward the lower surface, and is further perpendicular to the first tape guide through passage A. A second tape guide through passage C provided on the front side and inclined toward the needle drop point side from the upper surface toward the lower surface,
At least a second tape guiding through-path C of the first and second tape guiding through-paths A and C has a width that is movable in the width direction of the through-path C on both sides along the through-path C. The regulation members 2 and 3 are provided respectively.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heterogeneous tape guide device for a sewing machine.

[0002]

[Prior art]

 Conventionally, for example, a non-expansion tape and a bias tape are sewn on an armhole of a dress or a suit so as to prevent the shape from being lost. To sew both tapes to the body, first sew a wide bias tape (second tape) to the body, and then use a stretch-prevention tape (first tape) that is narrower than the bias tape. It is known to sew on the body, that is, to sew the stretch-preventing tape and the bias tape separately, and to sew the stretch-preventing tape and the bias tape on the back body after they have been sewn with a lockstitch sewing machine in advance. The stretch-preventing tape usually has a constant width, and the bias tape has a different width depending on the application, for example, 7 mm to 12 mm.

[0003]

[Problems to be solved by the device]

 However, both of the above methods have the following problems. That is, in both types, it is not possible to sew both tapes to the body at the same time, which requires two sewing steps, resulting in a high cost.

It is known that a member for guiding a bias tape to a needle drop point is provided on a presser foot of a sewing machine so as to facilitate joint sewing. The tape guide width of a tape guide portion of this member is known. Since it is fixed, it is necessary to replace it with a presser foot whose tape guide width has been changed according to the width of the bias tape, which complicates the work and increases the number of parts.

Therefore, according to the present invention, even if the width of at least the second tape of the first and second tapes is variable, the first and second tapes and the material are correspondingly sewn together correspondingly. The sewing machine has a single sewing process to reduce the cost, and at the same time, the needle drop position for at least the second tape of the first tape and the second tape can be changed. A first object is to provide a guide device.

Further, since only one presser foot is required and it is not necessary to replace the presser foot according to the tape width, the number of parts is reduced, and moreover, the first and second tapes and the cloth can be simply structured. A second object of the present invention is to provide a different type tape guide device for a sewing machine that can be sewn with high precision.

[0007]

[Means for Solving the Problems]

 In order to achieve the first object, the sewing machine different type tape guiding device of the first invention is a device for guiding the first and second different type tapes which are sewn together at the same time with the material to the needle drop point. The first tape guide through passage is provided on the vertical front side of the drop point and is inclined from the upper surface to the lower surface toward the needle drop point, and is provided further on the vertical front side of the first tape guide through passage. A second tape guiding through passage that inclines toward the needle drop point side from the upper surface toward the lower surface, and at least a second tape guiding through passage of the first and second tape guiding through passages. A feature of the through passage is that width-regulating members that are movable in the width direction of the through passage are provided on both sides of the through passage.

In order to achieve the first object, the sewing machine different tape guide device of the second invention is, in addition to the first invention, the first tape as a non-stretch tape, and the second tape of the second invention. The feature is that the tape is a bias tape.

In order to achieve the above-mentioned second object, the different type of tape guide device for a sewing machine according to the third aspect of the present invention is, in addition to the above-mentioned first aspect, the guide passages for both guides and the width regulating member are for pushing the sewing machine. It is characterized by being provided on the foot.

[0010]

According to the heterogeneous tape guide device of the sewing machine in the first and second inventions, the first and second tape guide through paths respectively guide the first and second tapes to the needle drop point. Work to stay inside. In addition, the width regulating member functions to properly guide the tape to the needle drop point according to the width of the tape and to change the needle drop position with respect to the tape.

Further, according to the heterogeneous tape guide device of the sewing machine of the third invention, since the first and second tape guide through passages and the width regulating member are provided on the presser foot, the tape width can be changed. Even if there is one, you will be able to do with one presser foot. Also, when the first and second tape guide through-passages and the width regulating member are not provided on the presser foot, they must be provided on a new member on the side of the machine main body, and consideration must be given to their engagement and the like. However, since the first and second tape guide through-passages and the width regulating member are provided on the presser foot, the new member is not required, and there is no need to consider the connection and the like, and highly accurate seam stitching is possible. Will be done.

[0012]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a sewing machine different type tape guide device according to an embodiment of the present invention, and FIG. 2 is a side view of FIG. In FIGS. 1 and 2, reference numeral 5 indicates a presser foot (upper) fixed to a presser bar of a sewing machine (not shown), and the lower part of the presser foot (upper) 5 is the vertical direction in FIG. A through hole 5a is formed along the direction (perpendicular to the paper surface). Below the presser foot (upper) 5, a presser foot (lower) 1 extending toward the needle drop point D side is arranged.

The presser foot (lower) 1 has a tip portion (right side in the drawing) 1A bent upward, and a central portion 1B including a needle drop point D, which is continuous with the tip portion 1A and An end portion (left side in the figure) 1C connected to the central portion 1B is linearly formed parallel to the sewing machine bed.

The end portion 1C of the presser foot (lower) 1 is bifurcated, and the bifurcated portions 1d and 1d have a through hole having the same diameter as the through hole 5a in alignment with the axis of the through hole 5a. 1a and 1a are formed, and a pin 6 is inserted into these through holes 1a, 1a and 5a. That is, the presser foot (lower) 1 is in a state of being rotatably supported by the presser foot (upper) 5 with the pin 6 as a fulcrum. Between the lower part of the presser foot (upper) 5 and the terminal portion 1C of the presser foot (lower) 1, a compression spring 7 whose both ends are locked is arranged, and thus the presser foot (lower) 1 The end portion 1C of 1 is biased downward.

At the position of the needle drop point D on the presser foot (lower) 1, a needle hole 9 having a diameter larger than the needle diameter penetrating in the up-and-down direction is formed, and a vertical front side of the needle drop point D ( On the right side in the drawing, a non-stretch tape guiding through passage A is formed as a first tape which is inclined from the upper surface of the presser foot (lower) 1 toward the lower surface toward the needle drop point D side. The width (length in the up-down direction in FIG. 1) of this non-stretch tape guide through passage A is substantially the same as the width of the non-stretch tape 11 (of course, it is slightly stretched so that the non-stretch tape 11 can pass). The width of the tape 11 is larger than the width of the tape 11) and its height is slightly larger than the thickness of the tape 11.

A tape guide plate 4 is arranged on the lower surface of the bent portion 1A, and the tape guide plate 4 is bent by the guide set screws 8 and 8 screwed from the bent portion 1A side. Is attached to. On the upper surface of the tape guide plate 4, there are formed long grooves that are recessed along the left-right direction in the drawing and open at the left and right ends. Therefore, the lower surface of the bent portion 1A and the upper surface of the tape guide plate 4 are formed. When combined, a through passage C formed by being surrounded by the long groove and the bent portion 1A is generated. In other words, on the further vertical side of the extension guide tape passage A, there is a second tape as a second tape which is inclined from the upper surface of the presser foot (lower) 1 toward the lower surface toward the needle drop point D. The path C is formed. The width (the length in the vertical direction in FIG. 1) of the bias tape guiding through passage C is substantially equal to or larger than the maximum width of the bias tape 12 used, and the height thereof is slightly larger than the thickness of the bias tape 12. It is getting bigger.

On the upper surface of the bent portion 1A, there are formed long grooves 1b which are recessed along a direction perpendicular to the bias tape guiding through passage C and which are open at both ends in the same direction. The long groove 1b is provided at a position including a fool hole formed for the guide set screws 8 and 8, and the lower surface of the long groove 1b and the upper surface of the bias tape guiding through passage C are communicated with each other. It is in the state of being

Guide plates 2 and 3 as width regulating members are loosely fitted on both sides of the long groove 1b in the longitudinal direction (vertical direction in FIG. 1). The tips of the guide plates 2 and 3 (ends on the side opposite to each other) are bent downward, and the lower ends of the bent portions 2b and 3b approximately reach the lower surface of the bias tape guiding through passage C. Has been extended to.

The guide plates 2 and 3 are formed with elongated holes 2a and 3a, respectively, in the longitudinal direction. The shaft portions of the guide set screws 8 and 8 are loosely formed in the elongated holes 2a and 3a. It has been fitted. Therefore, when the guide set screws 8 and 8 are tightened, the guide plates 2 and 3 are fixed in the long groove 1b by the heads of the guide set screws 8 and 8, and the tape guide plate 4 is bent to the bent portion 1A. Fixed. On the other hand, when the guide set screws 8 and 8 are loosened to such an extent that the tape guide plate 4 does not fall off the bent portion 1A, the tightening force of the guide set screws 8 and 8 on the guide plates 2 and 3 is released, The guide plates 2 and 3 can be slid in the long groove 1b.

Next, the operation of the apparatus thus configured will be briefly described below. First, depending on the width of the bias tape 12 to be used, the guide plates 2 and 3 are slid in the long groove 1b, and the distance between the facing end faces of the bent portions 2b and 3b of the guide plates 2 and 3 is set to the bias tape. Approximately 12 widths. At the same time, the needle drop position with respect to the bias tape 12 is set by the movement of the guide plates 2 and 3. That is, for example, when it is desired to make the seam 14 in FIG. 3 upward in the drawing of the bias tape 12, both guide plates 2 and 3 are placed downward while keeping the distance between the guide plates 2 and 3 set. When it is desired to move the stitch 14 to the lower side in FIG. 3 of the bias tape 12 on the other hand, the guide plates 2 and 3 are moved upward by a predetermined amount while keeping the above width.

Next, after the cloth 13 is placed on the bed, the bias tape 12 is inserted through the opening B of the bias tape guiding through-passage C, and the expansion tape 11 is pulled through the expansion tape guiding through-passage A. insert.

Then, the bias tape 12 and the extension tape 11 are guided by the bias tape guiding through passage C and the extension tape guiding through passage A, respectively, and reach the needle drop point D through the opening on the lower surface.

Then, when the presser foot is lowered and sewing is performed, the material 13, the bias tape 12 and the stretch-preventing tape 11 are sewn together at the same time, and an article as shown in FIG. 3 is obtained.

As described above, in this embodiment, the bias tape guiding through-passage C and the non-expansion tape guiding through-passage A guide the bias tape 12 and the non-expansion stop tape 11 to the needle drop point D, respectively, and guide them. Since the plates 2 and 3 guide the bias tape 12 to the needle drop point D according to the width of the bias tape 12, even if the width of the bias tape is changed in accordance with sewing, the bias tape 12 and the stretched tape are stretched correspondingly. The fastening tape 11 and the cloth 13 can be sewn together at the same time. Therefore, it is possible to reduce the cost by reducing the cost from one process that used to require two processes to one process.

Further, since the guide passages A and C and the guide plates 2 and 3 are provided on the presser foot 1, even if the width of the bias tape 12 is variable, only one presser foot is required. Therefore, the work of exchanging the presser foot is not required, and the work can be simplified, and the number of parts can be reduced.

Further, by moving the guide plates 2 and 3, it is possible to change the needle drop position with respect to the bias tape 12.

Furthermore, when the guide passages A and C and the guide plates 2 and 3 are not provided in the presser foot 1, they must be provided in a new member on the sewing machine main body side, and their engagement and the like must be taken into consideration. However, since these are provided on the presser foot 1, the above-mentioned new members are not necessary and it is not necessary to consider the connection and the like. Therefore, both the tapes 11 and 12 and the body 13 can be highly accurately configured with a simple structure. It is possible to sew according to.

Although the invention made by the present inventor has been specifically described based on the embodiments, the invention is not limited to the above-mentioned embodiments, and various modifications can be made without departing from the scope of the invention. Needless to say, for example, in the above embodiment, the bias tape guide through passage C, the expansion tape guide through passage A and the guide plates 2 and 3 are provided on the presser foot 1. May be provided on a new member on the sewing machine side. Even with this structure, simultaneous stitching can be performed, and the needle drop position with respect to the bias tape 12 can be changed by moving the guide plates 2 and 3.

Further, in the above embodiment, only the width of the bias tape guiding through passage C is variable, but the expansion tape guiding through passage A has the same configuration as the bias tape guiding through passage C side and is variable. It is also possible to correspond to the non-stretch tape.

Furthermore, in the above-mentioned embodiment, an application example in which the bias tape 12 and the stretch-preventing tape 11 and the cloth 13 are simultaneously sewn together is described, but the present invention is limited to these conditions. Instead, it can be applied to the case where the first and second different tapes are guided to the needle drop point and these are simultaneously sewn together on the material.

[0031]

[Effect of device]

 As described above, according to the heterogeneous tape guide device for the sewing machine of the first and second inventions, the first taper device is provided on the front side of the needle drop point and inclined toward the needle drop point side from the upper surface toward the lower surface. As the tape of the second tape, for example, a second tape that is provided on the vertical passage side of the extension guide tape guide through passage and the first tape guide passage, and is inclined toward the needle drop point side from the upper surface toward the lower surface. And a bias tape guide through passage, for example, at least on the both sides of the second tape guide through passage of the first and second tape guide through passages in the width direction of the through passage. Since the movable width restricting members are provided respectively, the first and second tape guiding through passages serve to guide the first and second tapes to the needle drop points, respectively, and the width restricting member is also provided. Satisfactorily drops the tape depending on the tape width Even if the width of at least the second tape of the first and second tapes is variable, the first and second tapes and the cloth can be sewn together at the same time correspondingly. Like Therefore, it is possible to reduce the cost by changing from the conventional two steps required to one step.

By moving the width regulating member, the needle drop position on the tape can be changed.

Further, according to the heterogeneous tape guide device of the sewing machine of the third invention, since the guide through passages and the width regulating member are provided on the presser foot of the sewing machine, even if the tape width is variable, the presser foot is Therefore, the work of exchanging the presser foot is not required and the work can be simplified, and the number of parts can be reduced.

If the first and second tape guide through passages and the width regulating member are not provided on the presser foot, they must be provided on a new member on the sewing machine main body side, and the arrangement and the like must be taken into consideration. However, since the first and second tape guide through passages and the width regulating member are provided on the presser foot, the above-mentioned new member becomes unnecessary and it is not necessary to consider the connection and the like. Thus, it is possible to sew the first and second tapes and the cloth with high precision.

[Brief description of drawings]

FIG. 1 is a front view of a heterogeneous tape guide device for a sewing machine according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a view from above of the fabric on which the stitching is completed.

[Explanation of symbols]

 1 Presser foot 2, 3 Width regulation member 11 1st tape 12 2nd tape 13 Fabric A 1st tape guide through-passage C 2nd tape guide through-passage D Needle drop point

Claims (3)

[Scope of utility model registration request] 1. A device for guiding, to a needle drop point, first and second dissimilar tapes that are sewn together with a material at the same time, the device being provided on the front side of the needle drop point, the needle drop from the upper surface toward the lower surface. A first tape guiding through passage inclined to the point side, and a second tape provided on the further vertical front side of the first tape guiding through passage and inclined to the needle drop point side from the upper surface toward the lower surface. A guiding through passage, wherein at least a second tape guiding through passage of the first and second tape guiding through passages is provided on both sides along the through passage. A different type tape guide device for a sewing machine, wherein each of the width regulating members is provided so as to be movable in the width direction. 2. The different tape guide device for a sewing machine according to claim 1, wherein the first tape is a non-expansion tape and the second tape is a bias tape. 3. The guide passages and the width regulating member,
2. The different tape guide device for a sewing machine according to claim 1, wherein the guide device is provided on the presser foot of the sewing machine.