JPH0751176B2 - Decorative tape manufacturing folder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a folder for folding and supplying a bias tape used for efficiently manufacturing a decorative tape used for a duvet cover, an edge of clothes, a collar, and the like (folding). Ingredient).

[Conventional technology]

Decorative tape (piping cloth) wrapping the core (thick thread) is often sewn onto the collar of the duvet cover. In this decorative tape, the bias tape 2 is folded in two, the core 1 is wrapped around the folded back portion, and the core 1 is fixed by straight stitching along the core 1 (single type, FIG. 5 (A)). , Which is folded in two and wrapped around the core 1 is attached to the lower side of the bias tape 3 which is different in color, and the two bias tapes 3 and 4 are sewn straight along the core 1 (double Type, FIG. 5 (B), etc.

Conventionally, these decorative tapes have been manufactured continuously by a sewing machine using a folder in which a bias tape is folded in two and a core is sent to the folded portion.

[Problems to be Solved by the Invention]

According to the above-mentioned conventional decorative tape manufacturing method, only one machine can be manufactured by one sewing machine, and the bobbin case of the bobbin thread has to be frequently replaced, resulting in high manufacturing efficiency. This is not good, and since one worker must be attached to one sewing machine, the manufacturing cost must be high.

Therefore, it is an object of the present invention to provide a decorative tape manufacturing folder which has extremely high manufacturing efficiency as compared with the conventional method and which enables manufacturing of the decorative tape at low cost without labor. And

[Means for Solving the Problems]

The present invention is a folder used for sewing two decorative tapes of the same kind or different kinds at the same time by using a two-needle double chain stitch sewing machine, which has a vertically long bias tape insertion port, and has a tip end. Tape guides that are folded inward outward and flattened in the lateral direction are connected to each other, and the pipe-shaped core guides whose tip openings face the tip openings of the tape guides. A decorative tape manufacturing folder, which is fixed to one or both of the tape guides, and a sub-tape guide having the same shape as those of the tape guides is fixed so that its tip end portion overlaps with the tip end lower side of the tape guide. The above problem was solved.

[Action]

Since a two-needle double chain stitch sewing machine is used and a bobbin thread is supplied from the bobbin and different decorative tapes are finished by the two needles, the manufacturing efficiency is double that of the conventional one.

Prior to sewing, the bias tape is folded in half by passing through the tape guide, and holds the core supplied from the core guide at the folded-back portion, if necessary. Further, if necessary, the bias tape supplied by being folded in two from the sub tape guide is overlapped.

〔Example〕

 A preferred embodiment of the present invention will be described with reference to the drawings.

Reference numeral 11 in the drawing denotes a folder according to the present invention, which is provided with tape guides 12 and 13 on both sides. The tape guides 12 and 13 each have vertically long tape insertion openings 14 and 15 at their rear ends, and gradually fold outward toward the front as they go forward, and their tip openings are flattened. . The bias tapes 2 and 3 are inserted into the spaces of the tape guides 12 and 13, respectively. The tape guides 12 and 13 are joined at their intermediate portions and tip portions via a joining plate 16. Folder 11 is usually
It is fixed on the table of the sewing machine via the connecting plate 16.

17 and 18 are core guides, and each tip is a tape guide.
The tape guides 12 and 13 are fixed so as to face the tips of the tapes 12 and 13. The core guides 17 and 18 are pipe-shaped, and the core 1 is inserted therein. Reference numeral 19 is a sub-tape guide having the same shape as the tape guides 12 and 13, and in the example shown in the drawing, the tape guide
Although it is installed on the 13 side, it may be installed on the tape guide 12 side or on both sides. The tip portion of the sub tape guide 19 is fixed below the tip portion of the tape guide 13, and the tip opening portion of the sub tape guide 19 has the tape guide portion 13.
It is preferable to be integrated with the front end opening (see FIG. 3). The bias tape 4 sewn on the lower side of the bias tape 3 is inserted into the sub tape guide 19.

20 is a presser foot for a two-needle, double chainstitch sewing machine, and a groove 21 is provided on the back of the presser foot to allow the core-corresponding portion of the decorative tape to escape.
Are formed in two rows (see FIG. 4). 22 is a needle hole.

In using the folder 11 having the above structure, the bias tapes 2 to 4 are inserted into the tape guides 12, 13 and 19, and the core 1 is inserted into the core guides 17 and 18. By doing so, the bias tapes 2 to 4 are gradually folded along the shape of the tape guides 12, 13, and 19 as they go to the tip, and the bias tapes 2 and 3 are guided to the core guides 17 and 18, respectively. The cores 1 guided by the above are supplied to their folded portions. Then, when each tape is pulled out from the tip opening of each guide, each tape is completely folded in two, the bias tapes 2 and 3 hold the core 1 at the folded portion, and the bias tape 4 is the bias tape. It is in a state of being applied to the lower side of 3.

In that state, each tape is pulled out to the bottom of the presser foot 20, and the presser foot 20 is lowered so that the core corresponding part fits in the groove 21, and the sewing machine is operated. Since a two-needle double chain stitch sewing machine is used as the sewing machine, different types of decorative tapes are manufactured at the same time on the bias tape 2 side and the bias tape 3 side. In other words, the present invention has twice as much production capacity as the conventional production method. Moreover,
Since the lower thread can be supplied from the bobbin like the upper thread without using the bobbin case, it is possible to continuously and efficiently manufacture a large amount of decorative tape without the trouble of replacing the lower thread.

Two decorative tapes of the same type can be manufactured at the same time without using the auxiliary tape guide 19 or by installing the auxiliary tape guides 19 on both the tape guides 12 and 13. Also, when not using the piping ground, the core guide 17,
No wick 1 needs to be fed to 18.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY As described above, the present invention has an effect that the same or different kinds of decorative tapes can be manufactured extremely efficiently at the same time, the labor cost can be significantly reduced, and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a folder according to the present invention, FIG. 2 is a longitudinal sectional view of an intermediate portion of the folder, and FIG.
FIG. 4 is a vertical sectional view of the tip of the folder, FIG. 4 is a view showing the back surface of the presser foot, and FIGS. 5 (A) and 5 (B) are views showing an example of a decorative tape. Explanation of code 1 …… Core, 2-4 …… Bias tape 11 …… Folder, 12,13 …… Tape guide 14,15 …… Tape slot 16 …… Coupling plate, 17,18 …… Core guide 19 …… Secondary tape guide, 20 …… Presser foot 21 …… Groove, 22 …… Needle hole

Claims (1)

[Claims] 1. A folder used for sewing two decorative tapes of the same kind or different kinds at the same time by using a two-needle double chain stitch sewing machine, having a vertically long bias tape insertion port, Tape guides that are folded in two outwardly toward the tip end and are flattened in the lateral direction are connected in pairs, and a pipe-shaped core guide whose tip opening faces the tip opening of each tape guide. A decorative tape manufacturing folder, which is fixed to a guide, and one or both of the tape guides and a sub-tape guide having the same shape as those of the tape guides are fixed so that their tip ends overlap with the lower side of the tip end of the tape guide.