JPH0111182Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) In the present invention, the main body of the shirring machine is attached to the sewing machine body with predetermined members attached, and each of the members is synchronized with the vertical movement of the needle bar of the sewing machine. This invention relates to an improvement to a shirring machine for household sewing machines that can be operated with ease.

(Conventional technology and problems) The conventional shirring machine of this type of household sewing machine is
Since it was a special shirring machine that matched the sewing position, it depends on the type of sewing machine.
There was something that could not be used.

In other words, the conventional shirring machines for home sewing machines were initially of the so-called low yank type with a short mounting section, but as shown in Figure 7, the mounting surface of the presser bar B on the sewing machine body was used as a reference for the sewing position. This was used exclusively for sewing machines in which the middle base line n was on the outside of k, but later on, as sewing machines became more diverse, the standard for the sewing position became inconsistent.For example, as shown in Fig. 8, A type of sewing machine has appeared in which the middle base line n is on the inside with respect to the mounting surface k, and it is not possible to use the crimping machine of the low shank type household sewing machine with this type of sewing machine. The combination had to be prepared as a special shirring machine and fixed to the main body of the shirring machine.

In other words, there have been many cases where it has not been possible to easily adapt the shirring machine of a conventional household sewing machine to various sewing machines. Note that in FIGS. 7 and 8, l is the left base line and γ is the right base line.

(Purpose and structure of the invention) The present invention was made in order to solve the above problems, and it is a new shirring machine for home sewing machines that can easily adjust the sewing position. In order to achieve this purpose, in the shirring machine for a household sewing machine of the present invention, the main body of the shirring machine is attached to the sewing machine body by attaching predetermined members, and each of the members is attached to the sewing machine body. A shirring machine for a household sewing machine that operates in synchronization with the vertical movement of a needle bar, the main body of the shirring machine is configured to be separable so that it can be slid left and right with respect to its mounting member, Furthermore, it is characterized in that the mounting member can be replaced even in a wide variety of models.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In Fig. 1, A is a shirring machine for a household sewing machine, which includes the shirring machine main body a, a ratchet gear b, a cloth feeding piece c, a lever piece d, and a clutch e for preventing the ratchet gear from returning (see Fig. 2). ), etc.

As shown in Fig. 2, the shirring machine main body a has:
At the bottom, a lower cloth guide f, an upper cloth guide g, and a presser foot h for overlapping stitching are installed, and on the upper part,
A ratchet gear b, a cloth feed splicing piece c, and a lever piece d are pivoted.

The mounting member i of the shirring machine main body a is separable, and the mounting member i of the shirring machine main body a
can be slid left and right with respect to the mounting member i, so that the sewing position can be arbitrarily determined.

Reference numeral 1 denotes a fitting piece that projects laterally of the shirring machine main body a, and a screw hole 11 is provided in the center of the fitting piece 1. Reference numeral 2 denotes a fitting part on the mounting member i side that fits with the fitting piece 1, and has a channel-like shape in vertical section, and has a long hole 22 in the vertical side 21 communicating with the screw hole 11. is long in the left-right direction, and horizontal sides 23 and 24 protruding upward and downward from the vertical side 21 serve as guide rails for sliding the fitting piece 1 left and right along the left-right horizontal direction. ing. Reference numeral 3 denotes an attachment main body formed continuously on one end of the vertical side 21, and is a portion attached to the presser bar B of the sewing machine main body. The form of the attachment main body 3 is not constant as will be described later (Fig. 6B, Fig. 6).
Figure C) A suitable one is prepared for each model of sewing machine. 4 is a screw for fixing the fitting piece 1 and the fitting part 2, 5 is a spring for preventing the screw 4 from loosening, and 6 is a needle hole (FIG. 3).

The mounting member i includes the channel-shaped fitting portion 2 and the mounting main body 3 as described above, and the mounting main body 3 has the fitting portion 2 as shown in FIGS. 5A and 6A. There is a so-called low shank type that is located at the same height as the fitting part 2, a so-called high shank type that is located higher than the fitting part 2 as shown in FIGS. 5B and 6B, and As shown in Figure 6C, there are some that are located higher than the fitting part 2 and are inclined, and each is adapted to fit a specific model of sewing machine.

In addition, these shirring machine main body a and mounting member i
are manufactured by either press molding or die-casting, and their material is often iron plate, but is not limited thereto.

Next, the operation of the shirring machine A of the household sewing machine constructed as described above will be explained.

First, the mounting member i of the shirring machine A of a household sewing machine corresponding to the target model of sewing machine is attached to the shirring machine main body a in a loosely assembled state (Fig. 3) or in a separated state (Fig. 4). ), attach it to the presser bar B of the sewing machine body. If mounting member i is attached to presser bar B in a separated state, then
The fitting piece 1 of the shirring machine main body a is fitted into the fitting part 2 of the mounting member i, a spring 5 is interposed, and the screw 4 is loosely fastened.

Next, align the desired sewing position reference lines.

When aligning with the left baseline l (Figures 7 and 8),
In FIG. 3, after sliding the fitting piece 1 of the shirring machine main body a to the left with respect to the fitting part 2 of the mounting member i and adjusting the needle hole 6 to be located on the left base line l, Tighten screw 4 firmly. At this time,
The relative position of the mounting body 3 of the mounting member i with respect to the shirring machine body a is as indicated by the chain line A in FIG.

In addition, when aligning with the middle base line n (Figures 7 and 8), adjust the axis 41 of the screw 4 to be located approximately in the center of the long hole 22 in Figure 3, and then tighten the screw 4 firmly. . At this time, the relative position of the attachment main body 3 to the shirring machine main body a is as shown by the solid line B in FIG.

Furthermore, when aligning the right base line γ (FIGS. 7 and 8), slide the fitting piece 1 of the shirring machine main body a to the right with respect to the fitting part 2 of the mounting member i in FIG. After adjusting the pit hole 6 so that it is located on the right base line γ, the screw 4 is firmly tightened. At this time, the relative position of the attachment main body 3 to the shirring machine main body a is as indicated by the chain line C in FIG. 3.

(Effects of the invention) As described above, the shirring machine for a household sewing machine according to the invention is configured so that the main body of the shirring machine can be separated so that it can be slid left and right with respect to the mounting member for the presser bar. Therefore, the mounting member can be easily replaced even for multiple models, and the creater of a single household sewing machine can be used regardless of changes in the standard sewing position due to the diversification of sewing machines.
It is flexible and economical.

Furthermore, when the main body of the shirring machine and the mounting member are manufactured by die-casting, strength and precision can be increased, quality can be stabilized, and the reliability of sewing work can be improved.

[Brief explanation of the drawing]

Fig. 1 is a side view of the shirring machine of the household sewing machine of the present invention, Fig. 2 is an exploded perspective view of the shirring machine of the above household sewing machine, and Fig. 3 is a plan view of the shirring machine of the above household sewing machine. , Fig. 4 is an exploded plan view of essential parts of the shirring machine of the domestic sewing machine as above, Fig. 5 is a plan view of the main body side of the shirring machine of the above domestic sewing machine with the mounting member separated, and Fig. 5A is the same as above. Figure 5B is a plan view of a low shank type mounting member among the separated mounting members, Figure 5C is a plan view of a high shank type mounting member among the separated mounting members same as above, and Figure 5C is a plan view of a high shank type mounting member among the separated mounting members same as above. A plan view of the member, FIG. 6 is a side view of the main body side shown in FIG. 5, FIG. 6A is a side view of the low shank molding member shown in FIG. 5A,
Fig. 6B is a side view of the high shank type mounting member shown in Fig. 5B, Fig. 6C is a side view of the high shank slant type mounting member shown in Fig. 5C, and Fig. 7 is the sewing position standard of the first sewing machine. FIG. 8 is a schematic diagram of the sewing position reference of another sewing machine. A: shirring machine for a household sewing machine, B: presser bar, a: shirring machine main body, i: mounting member, 1
...Fitting piece of a, 11...screw hole, 2...fitting part of i, 21...vertical side, 22...long hole, 23,2
4...Horizontal side, 3...Mounting body, 4...Screw, 5
...Spring, 6...Needle hole.

Claims (1)

[Scope of utility model registration request] The shirring machine main body is attached to the main body of the sewing machine by attaching predetermined parts, and each part of the shirring machine operates in synchronization with the vertical movement of the needle bar of the sewing machine. A household sewing machine characterized in that the main body is separable so that it can be slid left and right with respect to a mounting member for a presser bar, and that the mounting member can be replaced even in a wide variety of models. Crimp machine.