JP2006136484A - Pushing device for embroidery string - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pushing device for an embroidery string capable of being mounted to an existing sewing machine body with a simple operation and capable of embroidery sewing with a simple operation and which has a simple structure and is advantageous in economical view. <P>SOLUTION: A longitudinal piece section 4 is arranged detachably relative to a supporting rod 3 arranged parallel to a needle rod H of the sewing machine body. A lateral piece section 5 has a longitudinal hole section 5a formed in the longitudinal piece section 4 allowing the lower end portion of the needle rod H to pass through the same and a lateral hole section 5b in communication with the longitudinal hole section 5a and passing the embroidery string 6 through it. The embroidery string 6 can be easily and quickly sewing into a sewing cloth W by forming a clearance spaced apart a predetermined distance from the embroidery cloth W by the lateral piece section 5, and by the needle rod H moving and displacing relative to the embroidery string 6 sent from the lateral hole section 5b and arranged above the embroidery cloth W when the lateral piece 4 is mounted to the supporting rod 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a presser device for an embroidery string that is detachably attached to a sewing machine body and that sews an embroidery string into a sewing cloth by a needle movement.

In the embroidery sewing machine, a cord is arranged as an embroidery string so as to pass through a loop holder through a balance hole and a guide hole and draw a loop on the work cloth. At this time, the sewing needle passes the loop holder from the presser foot to sew the cord into the work cloth. The needle, the cloth presser foot, and the loop holder are displaced up and down at a predetermined timing, so that the looped cord forms a predetermined three-dimensional pattern on the work cloth (for example, see Patent Document 1). .
JP 2004-308082 A

  However, in the embroidery sewing machine of Patent Document 1, a loop mechanism composed of parts such as a needle, a presser foot and a loop holder is incorporated as a dedicated machine in the sewing machine body, and the overall structure is complicated and the cost may increase. There is. Moreover, since it is a dedicated machine for embroidery sewing, there is a lack of convenience in response to various needs such as performing embroidery sewing only when necessary in addition to normal sewing. Furthermore, because the structure has a structure in which the sewing needle is inserted into both holes while the hole of the presser foot and the hole of the loop holder are vertically aligned, high accuracy of the components is required. Therefore, there is a disadvantage that the cost is expected to rise.

  The present invention has been made in view of the above circumstances, and its purpose is that when embroidery sewing is required, it can be attached to an existing sewing machine body with a simple operation, and embroidery sewing can be performed with a simple operation, and the structure is An object of the present invention is to provide a presser device for an embroidery string which is simple and cost-effective.

(About claim 1)
The vertical piece of the presser device for the embroidery string is detachably attached to a support bar provided in parallel with the needle bar of the sewing machine body. The horizontal piece portion has a vertical hole portion formed in the vertical piece portion and allowing the lower end portion of the needle bar to be inserted therethrough and a horizontal hole portion communicating with the vertical hole portion and through which the embroidery string is inserted.
The vertical hole portion is eccentric with respect to the central axis of the horizontal piece portion so that the embroidery string is spaced from the side where the embroidery string is inserted into the horizontal hole portion, and is tapered so that the inner peripheral surface is narrowed downward. It is formed in a shape.
When the vertical piece is attached to the support bar, the horizontal piece is separated from the sewing cloth by a predetermined distance to form a clearance, and the needle bar moves with respect to the embroidery string sent from the horizontal hole and arranged on the sewing cloth. By doing so, the embroidery string is sewn into the sewing cloth.
Since the vertical piece is detachably attached to the support bar, simply attaching the embroidery string presser to the existing sewing machine when necessary and sending the embroidery string to the horizontal hole of the horizontal piece With simple operation, embroidery can be sewn on the sewing cloth. In addition, the presser device for the embroidery string has a simple structure with the vertical piece portion and the horizontal piece portion, and is advantageous in terms of cost.
In addition, the vertical hole portion is eccentric so that the embroidery string is separated from the side where the embroidery string is inserted into the horizontal hole portion. Therefore, when the embroidery string is inserted into the horizontal hole portion, the embroidery string is bent and becomes bent. In addition, there is an advantage that it is difficult to interfere with the needle bar from the upper surface portion of the horizontal piece portion.
Further, since the vertical hole portion is formed in a tapered shape whose inner peripheral surface is narrowed downward, there is an advantage that it is easy to guide the lower end portion of the needle bar while preventing interference with the needle bar.
Further, since the horizontal piece portion forms a clearance at a predetermined distance from the sewing cloth, when the embroidery string is arranged from the horizontal hole portion to the sewing cloth through the vertical hole portion, the embroidery string is separated from the horizontal piece portion or the sewing cloth. The embroidery string can be smoothly pulled out from the vertical hole without receiving unnecessary friction.

(About claim 2)
The vertical piece is provided so as to be adjustable in the vertical direction with respect to the support rod, and the vertical width of the clearance is variable. For this reason, the horizontal piece portion as well as the vertical piece portion can be adjusted in the vertical direction, and can correspond to embroidery strings having different thicknesses passing between the horizontal piece portion and the sewing cloth.

(Claim 3)
The vertical piece portion is formed with a vertical groove portion that is slidably fitted to the support rod so that the vertical piece portion is fixed to the support rod by a screw at a predetermined height position. In this case, the vertical adjustment of the vertical piece is realized with a simple structure in which a vertical groove is formed in the vertical piece and a screw is provided, which is advantageous in terms of cost.

(About claim 4)
The lower peripheral edge of the vertical hole is surrounded by a curved surface that protrudes downward. In this case, when the embroidery string is pulled out from the vertical hole portion to the sewing cloth, the sliding area of the embroidery string with respect to the outer peripheral edge at the lower end of the vertical hole portion is reduced, so that the sliding friction is reduced and the embroidery string is smoothly pulled out. The operation can be continued.

(Claim 5)
Due to the eccentricity of the vertical hole portion with respect to the central axis of the horizontal piece portion, the width from the outer side portion of the horizontal piece portion to the opening end portion of the vertical hole portion is set wide. For this reason, when the embroidery string is inserted into the horizontal hole portion, even if the embroidery string is redundant and bent as in the first aspect, it is difficult to interfere with the needle bar from the upper surface portion of the horizontal piece portion.

  The vertical piece of the presser device for the embroidery string is detachably attached to a support bar that is provided in parallel with the needle bar of the sewing machine body. The horizontal piece portion has a vertical hole portion formed in the vertical piece portion and allowing the lower end portion of the needle bar to be inserted therethrough and a horizontal hole portion communicating with the vertical hole portion and through which the embroidery string is inserted. When the vertical piece is attached to the support bar, the horizontal piece is separated from the sewing cloth by a predetermined distance to form a clearance, and the needle bar moves with respect to the embroidery string sent from the horizontal hole and arranged on the sewing cloth. By doing so, the embroidery string is sewn into the sewing cloth.

  1 to 3 show a first embodiment of the present invention. As shown in FIG. 1, the presser device 1 for an embroidery string is detachably mounted on a support bar 3 provided in a suspended state from the sewing machine body 2 and in parallel with the needle bar H. The presser device 1 is formed in a substantially L shape from a vertical piece portion 4 and a horizontal piece portion 5 that are detachably attached to the support rod 3.

  As shown in FIG. 2, the horizontal piece portion 5 has a vertical hole portion 5 a that allows the lower end portion of the needle bar H to be inserted, and a horizontal hole portion 5 b that communicates with the vertical hole portion 5 a and allows the embroidery string 6 to be inserted. The vertical hole portion 5a is eccentric with respect to the central axis S of the horizontal piece portion 5 in a direction away from the side where the embroidery string 6 is inserted into the horizontal hole portion 5b as indicated by an arrow A in FIG. . Due to the eccentricity of the vertical hole portion 5a with respect to the central axis S of the horizontal piece portion 5, the region from the outer side portion of the horizontal piece portion 5 to the opening end portion of the vertical hole portion 5a is set wide. Further, the inner peripheral surface of the vertical hole portion 5a is formed in a tapered shape that narrows downward. When the vertical piece 4 is attached to the support bar 3, the horizontal piece 5 is separated from the sewing cloth W by a predetermined distance to form a clearance C as shown in FIG.

At this time, the vertical piece 4 forms a vertical groove 4a that fits to the support rod 3 shown in FIG. 2 so as to be vertically slidable. The width is variable. By fastening the screw 7 to the vertical piece 4, the vertical piece 4, that is, the presser device 1 can be fixed to the support bar 3 at a predetermined height position.
Further, as shown in FIG. 3B, the outer peripheral edge at the lower end of the vertical hole portion 5a is surrounded by a curved surface portion 5A that protrudes downward, and the embroidery string 6 is connected to the sewing cloth W from the vertical hole portion 5a. On the other hand, when the embroidery string 6 is pulled out, the sliding area of the embroidery string 6 with respect to the outer peripheral edge at the lower end of the vertical hole 5a is reduced.

  In the above configuration, the sewing machine body 2 is operated in a state where the sewing thread h is passed through the needle bar H, and the sewing cloth W is sent from the horizontal hole portion 5b while being displaced along the predetermined design pattern. The needle bar H is moved with respect to the embroidery string 6 arranged on the cloth W. Thereby, the lower end portion of the needle bar H passes through the vertical hole portion 5a up and down, and the sewing thread h sews the embroidery string 6 into the sewing cloth W. As a result, a rich decorative pattern can be finished on the sewing cloth W in an artistic and elegant manner. As the embroidery string 6, design garments, quilts, bags, bags, bags, bags, bags, Bed covers, wall hangings, decorative letters or rugs can be created easily and quickly.

As described above, since the vertical piece 4 is detachably attached to the support bar 3, the embroidery string 6 is attached to the existing sewing machine body 2 when necessary and the embroidery string 6 is attached to the horizontal piece. The embroidery stitching can be performed on the sewing cloth W by a simple operation by simply sending it to the horizontal hole 5b. Moreover, the presser device 1 for the embroidery string has a simple structure with the vertical piece portion 4 and the horizontal piece portion 5 and is advantageous in terms of cost. Further, since the vertical hole portion 5a is eccentric so that the embroidery string 6 is separated from the side where the embroidery string 6 is inserted into the horizontal hole portion 5b, the embroidery string 6 is redundant when the embroidery string 6 is inserted into the horizontal hole portion 5b. Even if it is bent, the advantage that it is difficult to interfere with the needle bar H from the upper surface portion of the lateral piece 5 is obtained.
Further, since the inner peripheral surface of the vertical hole portion 5a is formed in a tapered shape that narrows downward, there is an advantage that it is easy to guide the lower end portion of the needle bar H while preventing interference with the needle bar H.
Further, since the horizontal piece 5 is separated from the sewing cloth W by a predetermined distance to form a clearance C, when the embroidery string 6 is arranged on the sewing cloth W from the horizontal hole 5b through the vertical hole 5a, the embroidery string 6 is disposed. However, the embroidery string 6 can be smoothly pulled out from the vertical hole 5a without receiving unnecessary friction from the horizontal piece 5 or the sewing cloth W.

  In addition, the hole diameter dimension of the horizontal hole part 5b in the horizontal piece part 5 can be changed as desired according to the thickness of the embroidery string 6. Since the horizontal hole portion 5b penetrates left and right, the embroidery string 6 can be inserted into the horizontal hole portion 5b from either the left or right direction, but it has a bottom that communicates with the vertical hole portion 5a even if it does not penetrate. Any hole may be used. Further, the hole diameter of the penetrating horizontal hole portion 5b may be set to different dimensions on the left and right sides so as to be able to cope with the embroidery strings 6 having different thicknesses.

  When embroidery sewing becomes necessary, it can be attached to the existing sewing machine body with a simple operation, embroidery sewing can be performed with a simple operation, and the structure has a simple and cost effective embroidery presser device. It is expected to be used at home, and can be widely applied to the sewing machine manufacturing industry in which sewing is performed using an embroidery string.

(Example 1) which is a side view which shows the principal part of a sewing machine main body. (Example 1) which is an expansion perspective view of the pressing device for embroidery strings. (A) is a side view of a presser device for an embroidery string (Example 1), and (b) is a longitudinal sectional view of a horizontal piece (Example 1).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Presser device for embroidery string 2 Sewing machine body 3 Support bar 4 Vertical piece part 4a Vertical groove part 5 Horizontal piece part 5a Vertical hole part 5b Horizontal hole part 5A Curved part 6 Embroidery string 7 Screw H Needle bar h Sewing thread W Sewing cloth

Claims (5)

A vertical piece provided detachably with respect to a support bar provided in parallel with the needle bar of the sewing machine body;
It consists of a vertical piece that is formed in this vertical piece and has a vertical hole that allows the lower end of the needle bar to be inserted, and a horizontal piece that communicates with the vertical hole and allows the embroidery string to be inserted.
The vertical hole portion is eccentric with respect to the central axis of the horizontal piece portion so that the embroidery string is spaced from the side where the embroidery string is inserted into the horizontal hole portion, and the inner peripheral surface faces downward. It is formed in a tapered shape that
When the vertical piece portion is attached to the support bar, the horizontal piece portion is separated from the sewing cloth by a predetermined distance to form a clearance, and is sent from the horizontal hole portion to the embroidery string arranged on the sewing cloth. The embroidery string presser device is characterized in that the needle bar is displaced by moving the needle bar so that the embroidery string is sewn into the sewing cloth.   2. The presser device for an embroidery string according to claim 1, wherein the vertical piece is provided so as to be adjustable in the vertical direction with respect to the support bar, and the vertical width of the clearance is variable.   3. The vertical piece portion is formed with a vertical groove portion that is slidably fitted to the support rod so as to be vertically slidable, and the vertical piece portion is fixed to the support rod by a screw at a predetermined height position. The presser device for the embroidery string described in 1.   The presser device for an embroidery string according to any one of claims 1 to 3, wherein the outer peripheral edge portion of the lower end of the vertical hole portion is surrounded by a curved surface portion that protrudes downward. The width from the outer side of the horizontal piece to the opening end of the vertical hole is set wide by the eccentricity of the vertical hole with respect to the central axis of the horizontal piece. The presser device for the embroidery string described in 1.

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