JPH0256913B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a pin tuck device for a pin tuck sewing machine, and more specifically, the present invention relates to a pin tuck device in a pin tuck sewing machine, and more specifically, the upper base plate can be divided at a position parallel to the direction of entry of the sewing fabric on the center side. The present invention relates to a pin tuck device in a pin tuck sewing machine.

(Prior Art and its Problems) Generally, this type of pintuck device forms pleated pintucks by passing the sewing fabric through the gap formed by a pair of upper and lower bases. A plurality of cloth guide plates are fixed to each of the upper and lower bases. An upper cloth guide plate is provided on the lower surface of the upper base so as to have a comb-shaped cross section in the front-rear direction, and a lower cloth guide plate is fixed on the upper surface of the lower base so as to enter between the upper cloth guide plates. has been done. For this reason, the sewing fabric is fed through the interval formed by the upper and lower fabric guide plates while forming pleats.

The above upper and lower cloth guide plates expand radially in the front,
It is formed so that the sewing fabric gradually gathers in the center. This is a structure adopted to reduce the resistance to feeding the sewing fabric.

However, if the sewing material is wide and cannot be pleated all at once, the pleating must be done in several steps, and the seam edge of the sewing material that has already been pleated will be at the beginning of the next sewing. becomes. For this reason,
In the conventional pintuck device, as mentioned above, the upper and lower fabric guide plates collect the sewing fabric evenly from the left and right sides.
It is difficult to match the sewing end with the sewing start.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a pin tuck device in which one side edge of the upper base is formed parallel to the stitching of the sewing material.

(Means for Solving the Problems) The present invention has the following configuration for solving the above problems.

That is, the required number of bases are arranged so that the opposing surfaces of a pair of bases arranged parallel to each other have a comb-like cross section, and the interval on the sewing fabric entry side is wide, and the interval on the sewing fabric exit side is narrow. The fabric guide plates are arranged so that the overall planar arrangement is approximately fan-shaped, the fabric guide plates on one base are positioned between the fabric guide plates on the other base, and the sewing fabric is passed between the fabric guide plates. In a pin-tuck device for a pin-tuck sewing machine that forms pin-tucks in a sewing material by using a sewing machine, one of the bases is provided so as to be splittable at a cloth guide plate position located parallel to the direction in which the sewing material enters the sewing material, and one of the divided bases is divided into two parts. The present invention is characterized in that the cloth guide plate of the other base corresponding to the cloth guide plate is detachably provided.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is an explanatory diagram of a state in which sewing material is inserted into the pin tuck device.

10 is an upper base, and 12 is a lower base. The upper base plate 10 and the lower base plate 12 are located opposite to each other.

FIG. 2 is a plan view of the pin tuck device, and FIG. 3 is a plan view of the upper base plate.

FIG. 4 is a plan view of the lower base, FIG. 5 is a central sectional view of the lower base, and FIG. 6 is a side view of the lower cloth guide plate. Moreover, FIG. 9 shows a side view of the upper cloth guide plate.

A plurality of lower cloth guide plates 16 are provided on the lower base 12. This group of lower cloth guide plates 16 has rear end straight portions 16b formed at equal intervals, followed by guide portions 16a that extend radially forward. Therefore, the shapes of the lower cloth guide plates 16 differ depending on the position where the lower base plate 12 is disposed.

Here, the lower cloth guide plate 16 shows an example of the shape of the lower cloth guide plate 16 to be installed on the lower base plate 12. A front leg 17a and a rear leg 17b extend from the lower end of the lower cloth guide plate 16. In order to attach the front legs 17a and rear legs 17b of the lower cloth guide plate 16 to the lower base 12, front grooves 18a and rear grooves 18b are provided at corresponding positions of the front legs 17a and rear legs 17b. Further, the rear groove 18b is formed in the shape of a hole so as to penetrate through the back side. The rear leg 17b is attached to this rear groove 18b, and the protruding rear leg 17b is prevented from coming off.

Furthermore, as shown in FIGS. 7 and 8, the structure for attaching the lower fabric guide plate 16 to the lower base plate 12 may be formed as follows. A support groove 19 consisting of a straight groove 19b and a guide groove 19a corresponding to the straight part 16b and guide part 16a of the lower guide plate 16 is carved in the lower base 12, and a part of this support groove 19 is formed on the back side of the plate base 12. The legs 16c provided on the lower cloth guide plate 16 may be attached to the lower cloth guide plate 16 by making a hole therethrough.

On the other hand, the upper base plate 10 is divided into two parts.
(10a, 10b). Upper cloth guide plates 14 are attached to the upper base plate 10 so as to be positioned at intervals between the lower cloth guide plates 16 provided on the lower base plate 12. That is, the upper cloth guide plate 14 attached to the upper base plate 10 has rear end straight portions 16b of the lower cloth guide plate 16 formed at equal intervals, followed by guide portions 16a that spread radially forward. Similarly, as shown in FIG.
and a guide portion 14a, which are disposed on the upper base plate 10 so as to have a fan-like planar arrangement. Further, the upper base plate 10 is formed with front grooves and rear grooves for mounting front legs 15a and rear legs 15b extending from the upper edge of the upper cloth guide plate 14. The front groove and rear groove for attaching the upper cloth guide plate 14 to the upper base plate 10 are also formed in the same manner as the front groove 18a and the rear groove 18b of the lower base plate 12.

Further, the upper base plate 10 is composed of two divided base plates 10a and 10b.
b is obtained by dividing the upper base 10 at a position parallel to the direction of entry of the sewing fabric on the center side. One divided base 10a is fixed to a support arm 24, and the other divided base 10b is fixed to a support arm 25. Further, the divided bases 10a and 10b are connected by a support plate 26 for integrally connecting them.

On the other hand, at the rear ends of the lower cloth guide plate 16 and the upper cloth guide plate 14, folding guides 16c and 14c are provided for folding the pleats formed in the sewing cloth sideways.

Furthermore, in this embodiment, the upper base 10 is divided at the center to form divided bases 10a and 10b, so that the dividing edges are formed parallel to the direction in which the sewing material enters. Therefore, when one divided base 10a is used, the sewing fabric is not collected from the divided edge side, but is collected only from the other end side. In this case, the lower cloth guide plate 16 of the lower base plate 12 on the side of the divided base plate 10b is removed. Therefore, when forming pleats in a wide sewing material by dividing it into multiple sections, pin-tucks can be accurately performed using the dividing edge as a reference. In addition, two divided bases 10
When using a and 10b, it can be used as a pin tuck device similar to the conventional one.

Further, in this embodiment, since the height positions of the divided bases 10a and 10b constituting the upper base 10 can be changed, each of the divided bases 10a and 10b
Upper and lower cloth guide plates 14, 1 with different heights on a and 10b
6 can be attached to perform pin tats of different heights at the same time.

In the above embodiment, the upper board 10 is divided into two parts, but these two divided parts 10a,
10b may be further divided into a plurality of parts as necessary.

(Effects of the Invention) As described above regarding the present invention, since the base can be divided at a position parallel to the direction of entry of the sewing fabric on the center side, one divided base is used and the dividing edge of this divided base is used as a reference. As a result, wide sewing fabric can be pin-tucked accurately in multiple steps. Furthermore, when combined, it can be used as a normal pin tuck device, and has great versatility.

Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the state in which sewing fabric is inserted into the pin tuck device, Fig. 2 is a plan view of the pin tuck device, Fig. 3 is a plan view of the upper base, Fig. 4 is a plan view of the lower base, and Fig. 4 is a plan view of the lower base. Figure 5 is a longitudinal sectional view of the lower base, Figure 6 is a side view of the lower cloth guide plate, Figure 7 is a side view showing the shape of another lower cloth guide plate, and Figure 8 is the lower guide plate of Figure 7. FIG. 9 is a side view of the upper cloth guide plate. 10... upper base, 10a, 10b, 10c...
Divided base, 12...Lower base, 14...Upper fabric guide plate, 16...Lower fabric guide plate, 18...Support groove, 2
2... Spacer, 24, 25... Support arm, 26...
...Support plate.

Claims (1)

[Scope of Claims] 1. The opposing surfaces of a pair of bases disposed parallel to each other have a comb-like cross section, and the gap on the sewing fabric entry side is wide and the spacing on the sewing fabric exit side is narrow. The required number of cloth guide plates are installed so that the overall planar arrangement is approximately fan-shaped, and the cloth guide plates on one base are inserted between the cloth guide plates on the other base, and the sewing fabric is placed between the cloth guide plates. In a pin tuck device for a pin tuck sewing machine that forms pin tucks in sewing material by passing the needle through the sewing material, the one base is provided so as to be divisible at the position of a cloth guide plate located in the center, parallel to the direction in which the sewing material enters. 1. A pin tuck device for a pin tuck sewing machine, characterized in that a cloth guide plate on one base of the divided base corresponds to a cloth guide plate on the other base, which is detachably provided.