JPH0642624Y2 - Attachment for stitch sewing on sewing machine - Google Patents

Description

[Detailed Description of the Invention] "Industrial field of application" The present invention relates to an attachment for stitch sewing in a sewing machine capable of guiding and regulating the end face of a fabric when performing stitch sewing.

"Prior art" As shown in Japanese Utility Model Publication No. 62-4308, the attachment for stitch sewing in the conventional sewing machine has the mounting rod horizontally projected from the bracket attached to the presser foot mounting rod in the direction orthogonal to the cloth feeding direction. , The base of a stitch ruler that regulates the end surface of the cloth is attached to the attachment rod so as to be movable in the axial direction through a receiving metal fitting, and a leaf spring is attached and fixed to the attachment rod between the attachment pieces of the stitch ruler. A lever having a stopper for fixing the stitch ruler to the lower position against the leaf spring is pivotally supported between the upper rear part of the receiving metal via a support shaft.

"Problems to be solved by the present invention" The attachment for stitch sewing in the conventional sewing machine is set by moving the receiving metal fitting with reference to the scale formed on the mounting rod when setting the stitch size, or by using the ruler to set the sewing needle. The receiving metal fitting must be moved and set so that the distance between the stitch ruler and the stitch ruler becomes the required dimension, and the work is troublesome, and there is a drawback that the operator causes a dimensional error.

In view of the above-mentioned conventional drawbacks, the present invention has an object to provide a stitch sewing attachment for a sewing machine which can be set to the same stitch size regardless of who sets it, and which is easy to handle.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the present invention provides a mounting bracket to be mounted on a presser foot mounting rod or a holder of the presser foot, and this mounting bracket in a direction perpendicular to the side surface of the presser foot. An attachment for stitch sewing in a sewing machine, which comprises a mounting rod fixed so as to project and a stitch ruler slidably and rotatably mounted on the mounting rod, in front of the mounting rod and with the mounting rod. A guide shaft fixed to the fitting so as to be parallel to each other, a plurality of ring-shaped size rings having a predetermined thickness and inserted into the guide shaft, and at least one or more of the plurality of size rings. A ring-shaped positioning ring having an outer diameter smaller than that of at least one dimension ring interposed at an arbitrary position, and attached to the tip of the guide shaft. A fixture for removably fixing the attached large number of dimension rings and positioning rings, and a recess formed by the positioning rings when the stitch ruler is positioned so as to be able to guide the end of the cloth for sewing. A stitch size setting mechanism including a locking piece formed on the stitch ruler inserted into the sewing machine constitutes a stitch sewing attachment in the sewing machine.

[Operation] In the stitch sewing attachment in the sewing machine configured as described above, the stitch size can be set by locking the locking piece of the stitch ruler in the recess of the positioning ring portion.

Further, the positioning ring can be inserted at an arbitrary position of a large number of dimension rings to set an arbitrary stitch size.

"Embodiment of the Invention" Hereinafter, the invention will be described in detail with reference to an embodiment shown in the drawings.

In the embodiment shown in FIGS. 1 to 6, reference numeral 1 denotes a stitch sewing attachment in a sewing machine of the present invention which is attached by a mounting screw 4 for attaching a presser foot 3 to a presser foot mounting rod 2. The stitch sewing attachment 1 in this sewing machine is shown in FIG. Is a crank-shaped mounting member 6 having an insertion groove 5 for the mounting screw 4 formed at its tip, and a rear end portion of the mounting member 6 is caulked so as to project in a direction perpendicular to the side surface of the presser foot 3 or A mounting rod 7 having a polygonal columnar shape fixed by welding or the like, a hexagonal column in this embodiment, and a stitch ruler slidably and rotatably mounted on the mounting rod 7 and capable of guiding the end of the cloth to be sewn. 8 and
The stitch ruler 8 attached to the attachment rod 7 comprises a stitch size setting mechanism 9 capable of easily and reliably setting the stitch size to a preset size.

The stitch ruler 8 includes a support member 10 slidably and rotatably attached to the attachment rod 7, a stitch ruler body 11 having a rear end fixed to the support member 10, and a stitch ruler body 11 A guide piece 12 that can guide the end of the cloth to be sewn formed at the tip of the sewing machine, a locking piece 13 that is formed to project downward at substantially the center of the stitch ruler body 11, and the support member 10. Support piece mounting hole formed in
14, a spherical pressing pressure piece 15 for urging the mounting rod 7 housed in the supporting piece mounting hole 14 with a predetermined pressing pressure, and an urging spring 16, and an outer end portion of the supporting piece mounting hole 14. It is composed of a closing body 18 that is screwed into the screw hole 17 formed in the above and closes the portion.

As shown in FIG. 6, the stitch size setting mechanism 9 has a guide shaft 19 fixed to the mounting member 6 at a portion near the lower front portion of the mounting rod 7 so as to be parallel to the mounting rod 7.
And a predetermined thickness dimension to be inserted into this guide shaft 19, for example 1 m
A large number of ring-shaped dimension rings 20 of m and arbitrary positions of the plurality of dimension rings 20, for example, every other one, every two, three ... The ring-shaped positioning ring 21 having an outer diameter smaller than the outer diameter of the dimension ring 20 and a threaded portion 22 formed at the tip of the guide shaft 19 are screwed together to form the large number of dimension rings 20. And a fixture 23 capable of detachably pressing and fixing the positioning ring 21.

The stitch sewing attachment 1 in the sewing machine having the above structure is fixed to the presser foot 3 by a mounting screw 4 for attaching the presser foot 3 to the presser foot mounting rod 2.

When using, the stitch ruler body 11 is pivoted upward and supported as shown in FIG. 5, the support member 10 is slid along the attachment rod 7, and the preset positioning ring 21 is used. By rotating the stitch ruler body 11 in the recess 24 formed by interposing, the locking piece 13 is locked as shown in FIG. 4, a cloth to be sewn with a preset stitch size can be formed. The end can be set so that it can be guided by the guide piece 12.

This guideable state is held in a stable state by the pushing pressure piece 15 urged by the urging spring 16 attached to the supporting member 10 on the flat portion of the attachment rod 7 as shown in FIG.

Further, even when the stitch ruler body 11 is rotated upward, as shown in FIG. 5, the flat portion of the attachment rod 7 is urged by the urging spring 16 attached to the support member 10 to push the pressing piece 15.
Held in a stable state by.

[Different Embodiments of the Present Invention] Next, different embodiments of the present invention shown in FIGS. 7 to 16 will be described. In the description of these examples,
The same components as those of the embodiment of the present invention are designated by the same reference numerals, and duplicate description will be omitted.

In the embodiment of FIGS. 7 to 9, the main difference from the embodiment of the present invention is the mounting rod 7A, which is cylindrical and is flat so that the stitch ruler 8 can be held at the set position and the free position. The parts 25 and 26 are formed. Even with the stitch sewing attachment 1A in the sewing machine using the mounting rod 7A thus formed, the same operation and effect as those of the embodiment of the present invention can be obtained.

In the embodiment shown in FIGS. 10 to 12, the main difference from the embodiment of the present invention is the stitch size setting mechanism 9A, which has a U-shaped size ring 20A. , The U-shaped positioning ring 21A is used, and the stitch size setting mechanism 9A configured as described above is used to form the stitch sewing attachment 1B in the sewing machine, so that the stitch size can be easily changed. be able to.

In this embodiment, a ring-shaped positioning ring 21 may be used as shown in FIG.

Further, as shown in FIG. 14, a guide shaft 19A formed by cutting both ends to form an elliptical shape may be used.

Further, as shown in FIG. 15, a stitch size setting mechanism 9B is configured by using a size ring 20B in which a plurality of recesses 24 are formed in a predetermined size portion of the outer peripheral portion, and the stitch size setting mechanism is formed.
It may be an attachment for stitch sewing using 9B.

Further, as shown in FIG. 16, the stitch size setting mechanism 9C is configured by using the size rings 20C and 20D in which a plurality of recesses 24 are formed at predetermined size portions of the outer peripheral portion.
It may be an attachment for stitch sewing using 9C.

In the embodiment of the present invention, the attachment 1 for stitch sewing in the sewing machine is fixed to the presser foot 3 with the attaching screw 4 for attaching the presser foot 3 to the presser foot attaching rod 2. However, the present invention is not limited to this. However, the present invention is not limited to this, and may be attached to a presser foot attaching rod or a presser foot holder.

"Effects of the Present Invention" As is apparent from the above description, the following effects can be obtained in the present invention.

(1) Presser foot mounting rod, a mounting bracket to be mounted on a holder of the presser bar, a mounting rod fixed to the mounting bracket so as to project in a direction perpendicular to the side surface of the presser bar, and slidable to this mounting rod. And a stitch ruler that is rotatably attached to the sewing machine, the guide shaft fixed to the attachment fitting in front of the attachment rod and parallel to the attachment rod. A plurality of ring-shaped dimension rings having a predetermined thickness dimension to be inserted into the guide shaft, and at least one or more dimension rings interposed at at least one arbitrary position of the plurality of dimension rings. Ring-shaped positioning ring with a small outer diameter, and the large number of size rings and positioning rings attached to the tip of the guide shaft. A fixing device capable of fixing, and a locking piece formed on the stitch ruler, which is inserted into a recess formed by the positioning ring when the stitch ruler is positioned so as to be able to guide a portion of the cloth to be sewn. With the stitch size setting mechanism consisting of, the positioning ring is inserted at an arbitrary position of a large number of size rings so that the locking piece of the stitch ruler can be inserted between the size rings where the positioning rings are located. Thus, the stitch ruler can be set to the preset stitch size. Therefore, it is easy to set the stitch size,
It can be done reliably.

(2) According to the above (1), even if each of the plurality of sewing machines is stitch-sewn into one piece of clothes, each piece having a certain stitch size can be sewn.

(3) According to the above (1), the stitch size can be easily changed to an arbitrary size only by changing the portion of the positioning ring interposed in the multiple size rings.

(4) According to the above (1), since the positioning ring can be set in advance so that it can be set and used in a frequently used stitch size, different stitch sizes can be easily selected and used. .

(5) According to the above (1), since the structure is simple, it is easy to handle and can be implemented easily.

(6) According to claims 2 and 3, the same effects as the above (1) to (4) can be obtained.

[Brief description of drawings]

1 to 3 are front views showing an embodiment of the present invention,
A side view, a plan view, FIG. 4 is a partially broken sectional view with the stitch ruler in a set state, FIG. 5 is a partially broken sectional view with the stitch ruler in a free state, and FIG. 6 is an explanation of the stitch size setting mechanism. Figures 7, 7-9, 10-12,
FIG. 13, FIG. 14, FIG. 15, and FIG. 16 are explanatory views showing different embodiments of the present invention. 1, 1A, 1B: Attachment for stitch sewing, 2: Presser foot mounting rod, 3: Presser foot, 4: Mounting screw, 5: Insertion groove, 6: Mounting bracket, 7, 7A: Mounting rod, 8: Stitch ruler, 9, 9A, 9B, 9CA: Stitch dimension setting mechanism, 10: Support member, 11: Stitch ruler body, 12: Guide piece, 13: Locking piece, 14: Support piece mounting hole, 15: Pushing piece, 16: Biasing spring, 17: Screw hole, 18: Block, 19, 19A: Guide shaft, 20, 20A, 20B, 20C, 20D: Dimension ring, 21, 21A: Positioning ring, 22: Threaded part, 23: Fixture , 24: concave part, 25: flat part, 26: flat part.

Claims (3)

[Scope of utility model registration request] Claims: 1. A presser foot mounting rod or a mounting bracket to be mounted on a holder of the presser bar, a mounting rod fixed to the mounting bracket so as to project in a direction perpendicular to a side surface of the presser bar, and the mounting rod. An attachment for stitch sewing in a sewing machine, comprising a stitch ruler that is slidably and rotatably attached, and a guide shaft fixed to the attachment fitting in front of the attachment rod and parallel to the attachment rod. A plurality of ring-shaped dimension rings having a predetermined thickness dimension inserted into the guide shaft, and at least one or more dimension dimensioned at at least one or more arbitrary positions of the multiple dimension rings. A ring-shaped positioning ring having an outer diameter smaller than that of the ring, and the large number of dimension rings and positioning rings attached to the tip of the guide shaft And a fastener formed on the stitch ruler that is inserted into the recess formed by the positioning ring when the stitch ruler is positioned so as to guide the end of the cloth for sewing. An attachment for stitch sewing in a sewing machine, which is provided with a stitch size setting mechanism including a stop piece. 2. A presser foot mounting rod or a mounting bracket to be mounted on a holder of the presser bar, a mounting rod fixed to the mounting bracket so as to project in a direction perpendicular to a side surface of the presser bar, and the mounting rod. An attachment for stitch sewing in a sewing machine, comprising a stitch ruler that is slidably and rotatably attached, and a guide shaft fixed to the attachment fitting in front of the attachment rod and parallel to the attachment rod. A plurality of U-shaped dimension rings having a predetermined thickness dimension inserted into the guide shaft, and at least one or more of the plurality of dimension rings interposed at any one or more arbitrary positions. A U-shaped or ring-shaped positioning ring having an outer diameter smaller than that of the dimension ring, the plurality of dimension rings attached to the tip end portion of the guide shaft, and A fixing tool for tightening and fixing the positioning ring, and the stitch ruler inserted into the recess formed by the positioning ring when the stitch ruler is positioned so as to be able to guide the end of the cloth for sewing. An attachment for stitch sewing in a sewing machine, which is provided with a stitch size setting mechanism including a locking piece. 3. A presser foot mounting rod or a mounting bracket to be mounted on a holder of the presser bar, a mounting rod fixed to the mounting bracket so as to project in a direction perpendicular to a side surface of the presser bar, and this mounting rod. An attachment for stitch sewing in a sewing machine, comprising a stitch ruler that is slidably and rotatably attached, and a guide shaft fixed to the attachment fitting in front of the attachment rod and parallel to the attachment rod. A dimension ring in which at least one recess is formed in a predetermined dimension portion of an outer peripheral portion to be inserted into the guide shaft, and a fixture for tightening and fixing the dimension ring attached to the tip end portion of the guide shaft, The stitch ruler is inserted into the recess of the dimension ring when the stitch ruler is positioned to guide the end of the fabric to be sewn. Stitches sewing attachment in sewing machines, characterized in that it comprises a stitch size setting mechanism comprising a locking piece.