JPS6135186Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stitching attachment for a sewing machine that guides and restricts the end surface of a fabric when stitching is performed.

Conventionally, when stitching a thick material on top of a certain material, a stitch ruler attached to the presser foot is used to regulate the guidance, but as shown in Figure 1, When moving from the parallel straight section A to the corner section B leading to the other side, the stitch ruler gets caught on the upper fabric, so the presser foot 5 must be raised each time to release the pressure on the fabric at one end, which is extremely inconvenient. It was hot.

In view of these drawbacks, the present invention has a presser foot mounting rod with a presser foot attached to its lower end, and a support fitting with a stitch ruler attached to its lower end that is inserted into the presser foot in such a way that it is pressed downward by a spring, and the support fitting is used for stitching. A sewing machine in which the ruler is parallel to the presser foot and the guide piece is used to freely slide up and down a predetermined stroke to restrict the guide, and at the raised position where the slide restriction is released, the upper end of the guide piece is held in the raised position by rotation. An embodiment of the present invention will be described below based on the drawings. 1 is a stitch sewing attachment mainly attached to a high-speed lockstitch integrated feed sewing machine. This is an attachment for sewing, and a split groove 3 is formed at the lower end of the presser foot mounting rod 2, and the upper end of the presser foot 4 is inserted into the split groove 3 and fixed with a screw 5. The upper end of the presser foot attachment rod 2 is made to project forward and backward from the presser foot attachment rod 2, and a guide piece 6 is integrally formed therein.

Reference numeral 7 denotes a support fitting, which is rotatably and slidably inserted into the presser foot mounting rod 2 at a base 9 through which an insertion hole 8 through which the presser foot mounting rod 2 is inserted is inserted, and an arm rod 10 is inserted from one end. A stitch ruler 1 has a slide groove 11 formed in the lateral direction on the lower front surface of the arm rod 10, and has a square bar-shaped guide piece 12 parallel to the presser foot 4.
3 is provided separately, and a slide guide 15 that fits into the slide groove 11 of the arm bar 10 is provided protruding from the back surface of the mounting piece 14 that stands up from the rear end of the stitch ruler 13, so that the stitch ruler 13 A long hole 1 that is slidably fitted and penetrated by the mounting piece 14
6 and can be fixed at a predetermined position with a screw 17.

Further, a guide groove 18 corresponding to the guide piece 6 of the presser foot 4 is cut out in the lower surface of the base 9 of the support fitting 7, and the support fitting 7 is connected to the guide piece 1 of the stitch ruler 13.
2 is parallel to the presser foot 4, and from a position slightly lower than the presser foot 4, the guide piece 6 allows the guide piece 6 to freely slide up and down a predetermined stroke, and the support fitting 7 is moved to an elevated position where the slide restriction is released. By rotating the guide piece 6, it can be placed on the upper end surface of the guide piece 6 and held in the raised position.

Reference numeral 19 denotes a spring presser inserted through the presser foot mounting rod 2. The spring presser 19 is fixed to the presser foot mounting rod 2 with a set screw 20 so that its position can be adjusted freely, and the spring presser 19 and the upper surface of the support fitting 7 are A spring 21 is press-fitted between them so that the stitch ruler 13 is pressed downward via the support fitting 7.

Next, to explain the function of the stitch sewing attachment in the sewing machine according to the present invention, the first
As shown in the figure, the end surface of the thick cloth 22 to be stitched is
When sewing is started while regulating the guide at , a stitch stitch 23 is formed at an arbitrary width position according to the slide position of the guide piece 12, and sewing is continued in this state to create a straight line parallel to the fabric 22. When moving from part A to the other corner part B, as shown in FIG. The guide restriction state is released, and the corner portion B is sewn in this state.

In short, the present invention consists of a presser foot mounting rod 2 with a presser foot 4 attached to its lower end, and a stitch ruler 1 attached to its lower end.
3 attached thereto is inserted through the support fitting 7 while being pressed downward by the spring 21, so that the stitching ruler 13 can be elastically brought into contact with the feeding surface of the fabric 22, so that the stitching ruler 13 can be inserted into the fabric while being sewn. 22 is completely prevented from slipping under the stitching ruler 13, and the end surface of the fabric 22 can be guided and regulated accurately and reliably, and the support fitting 7 can be guided with the stitching ruler 13 parallel to the presser foot 4. Since the piece 6 is configured to guide and restrict the guide so that it can freely slide up and down a predetermined stroke, and at the raised position where the slide restriction is released, the upper end of the guide piece 6 is held in the raised position by rotation, so that the stitch ruler 13 is not moved during sewing. When the sewing machine is released from use, only the stitch ruler 13 can be released with a single touch while leaving the presser foot 4 as it is, making it extremely convenient as an attachment for stitching, and has great practical effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of a stitching attachment in a sewing machine according to the present invention, and FIG. 2 is a perspective view showing the stitch ruler in a released state. 2...Presser foot installation rod, 4...Presser foot, 6...
...Guide piece, 7... Support metal fittings, 13... Stitch ruler, 21... Spring.

Claims (1)

[Scope of utility model registration request] A support fitting with a stitch ruler attached to the lower end is inserted into the presser foot mounting rod with a presser foot attached to the lower end while being pressed downward by a spring, and the support fitting is in a state where the stitch ruler is parallel to the presser foot. Stitch sewing in a sewing machine, characterized in that the guide piece is configured to freely slide up and down a predetermined stroke and guide and restrict the guide, and at the raised position where the slide restriction is released, the upper end of the guide piece is held in the raised position by rotation. Attachment for.