JPS5822700Y2 - Presser foot with thread presser piece for sewing machine - Google Patents

Description

[Detailed description of the invention] This invention is mainly based on a thread presser piece that is elastically attached to a known presser foot for a sewing machine that sews the bottom end of a thick bag such as a polypropylene rice bag. This is intended to eliminate the fraying of the sewing thread ends and efficiently and continuously finish a complete sewing bag with good appearance.

In the drawing, reference numeral 1 is a well-known part that is widely used as a presser foot for sewing machines that sew heavy-weight bags.The presser foot alone operates the sewing machine to sew the bottom edge of the first bag, and then cuts the sewing thread. When sewing the bottom end of the second bag, the end of the cut sewing thread moves freely and frays, so it does not hang properly on the needle, resulting in incomplete sewing of the second bag. be.

Therefore, it is self-evident that sewing can ideally be completed if the free end of the cut sewing thread can be firmly held even temporarily. The thread presser is attached with a thread presser piece that elastically presses the thread presser foot.Its structure is such that almost parallel elastic pieces 2゜2 are attached from the tip of the presser foot 1, extending from the upper left and right sides of the presser foot 1 toward the rear end. gold 1
A horizontal presser piece 3 is attached to the bullet pieces 2 at the rear of the shell.

With the above configuration, the thread presser piece 3 can also be used for the existing presser foot 1.
can be easily attached, and without interfering with the original operation of the presser foot 1 or the needle, the end of the sewing thread is elastically pressed and continuous sewing is performed effectively without delay, and the presser foot 3 Since the presser foot 1 is elastically movable up and down, it does not interfere with the movement of the presser foot 1.

[Brief explanation of the drawing]

The drawings show the entire presser foot with thread presser piece of the proposed sewing machine in actual size. Figure 1 is a side view, Figure 2 is a plan view, and Figure 3 is a view from the left side of Figure 1. Viewed edge, surface view,
FIG. 4 is an end view of FIG. 1 as viewed from the right side.

Claims (1)

[Scope of utility model registration request] Attach almost parallel bullet pieces 2, 2 from the tip of the presser foot 1 of the sewing machine to the upper left and right sides of the presser foot 1 toward the rear end. Presser foot with thread presser piece for sewing machine with presser foot piece 3 attached.