JPS5938226Y2 - Pin tuck device in pin tuck sewing machine - Google Patents

Description

[Detailed description of the invention] The present invention is based on the pintuck sewing machine that folds the sewing fabric into pleats at appropriate intervals in the width direction with respect to the traveling direction of the sewing fabric before sewing the sewing machine. Regarding equipment.

Generally, this type of pintuck device obtains pleated folds by passing the sewing material through a gap formed by a pair of guide plates.

By arranging a required number of the pair of guide plates at appropriate intervals in the direction of movement of the sewing material, pleat-like folded portions at appropriate intervals are formed.

Conventional pintuck devices include those in which the pair of guide plates are fixed integrally to the upper and lower bases by welding or the like;
It is known that integrated guide plates are removably engaged with engagement grooves on the upper and lower bases.

However, when a pair of guide plates are fixed integrally to the upper and lower bases by welding or the like, the intervals between the pleats of the sewing fabric to be sewn are uniform. If it is desired to change the guide plate, it is necessary to replace the entire base, and therefore it is necessary to prepare bases of various sizes, which is not economical.

Furthermore, since the guide plate and the base are integrated, if you want to change the folding interval of the sewing fabric without replacing the base, you can change the sewing machine needle to the desired value without changing the pleated folding interval. This is done by arranging the fabric according to the spacing between the sewing machines, and as a result, creases are formed in the fabric after the sewing process is completed without being sewn by the machine, and a post-process is required to erase these creases. Yes, it wasn't very practical.

In addition, in the case where a pair of guide plates are removably engaged with the engagement grooves of the upper and lower bases, if you want to change the interval between folds of the sewing fabric, one guide plate can be attached to the engagement grooves of the upper and lower bases. All you have to do is pull them out to make the same distance, but on the other hand, it takes time to attach and remove the guide plates, and the metal or synthetic resin base must have a special engagement groove that matches the shape of the guide plates. Moreover, forming a large number of sheets requires special tools and labor, which is expensive and not economical.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to enable the guide plate to be easily assembled to the base, and to form pleated folds with various spacing dimensions. The present invention provides an economical pin-tuck device for a pin-tuck sewing machine by reducing the labor required for machining the base.

An embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, a lower base 1 and this lower base are used in a pin tuck device that forms a folded part A' of a folded sewing fabric A to be sewn in a sewing part (not shown) of a pin tuck sewing machine. The present invention is applied to the first guide plate 2 attached to the first guide plate 1.

In the figure, reference numeral 1 denotes a lower base, and the lower base 1 is, for example, a thick metal member having a trapezoidal planar surface.

The surface of the lower base 1 on the proximal edge 1a side has this proximal edge 1a.
Parallel to
... is provided.

Also, the tip edge 1b side of the lower base 1, that is, the engagement hole 3
A recess 24 having a predetermined width and a predetermined angle is provided on the rear surface of the recess.

A plurality of guide plates 2 are placed upright on the lower base 1 along the surface of the lower base 1.

These guide plates 2... are the proximal edge 1 of the lower base 1.
Parallel plate portions 5 arranged in parallel at predetermined intervals on the b side, and a tip edge 1b of the lower base 1 that is continuously formed on the parallel plate portion 5.
It consists of a radiation plate part 6 extending toward the side at a predetermined angle, and the continuous upper edge of the parallel plate part 5 and the radiation plate part 6 forms a first fabric bending guide edge 7. There is.

In addition, on the parallel plate portion 5 of the guide plate 2, an engagement pin 8 to be fitted into the engagement hole 3 of the lower base 1 is integrally provided by welding (or brazing) to protrude. It is provided.

Further, a clamping piece 9 extending to the four parts 4 of the lower base 1 is integrally formed at the tip of the radiation plate 6 of the guide plate 2.

In addition, a pair of magnet pieces 10° 11 of a predetermined thickness corresponding to the shape of the four parts 4 are provided on the four parts 4 of the lower base 1 so as to be clamped and fixed on the upper and lower surfaces of the clamping pieces 9. ing.

Note that the magnet piece 11 buried in the bottom surface 4a of the recess 4 is fixed, for example, with an adhesive (or a fixing device such as a bolt).

By making such a tank bottom, as shown in FIG. 4, with respect to the first guide plate 2 of the lower base 1,
The second guide plates 13 of the upper base 12 are normally assembled as a pair, and the first guide plates 2...
By feeding the sewing material A into the gap formed by the second guide plate 13 and the second guide plate 13 in its traveling direction X, that is, toward the pin tuck sewing machine (not shown),
First and second guide plate 2...13...
The first and second fabric folding guide edges 7,
The folded portion A' is formed by forming continuous folds at 14 and folded into pleats by the folds formed by the first and second fabric folding guide edges 7 and 14.
can be formed.

Also, if you want to change the interval between the folds, please use the first
The guide plates 2 can be freely changed, for example, by simply removing every other guide plate 2 to provide a desired spacing (FIG. 5).

That is, from this lower base 1 to the first guide plate 2...
To remove the clamping pieces 9 of the first guide plate 2, remove the magnet pieces 10 on the upper surface of the clamping pieces 9 from the recess 4, and then remove the clamping pieces 9 of the first guide plate 2 from the magnets. By simply removing the pieces 11, the first guide plates 2 can be spaced at a desired distance.

In addition, an appropriate number of engagement holes 3 for engaging the engagement pins 8 and recesses 4 in which the magnet pieces 10 and 11 are embedded may be formed in the lower base 1. Engagement hole 3...
... and the recess 4 may have a simple shape, and therefore can be manufactured relatively easily.

In addition, in the above embodiment, the first guide plate 2...
The pair of magnet pieces 10 and 11 that hold the clamping pieces 9 do not need to both be magnet pieces, and one of them may be a magnet piece and the other one may be an iron plate.

Further, in the above embodiment, the first guide plate 2...
Although the extending length of the radiation plate portions 6 of ... is shown as being equal, the present invention is not limited to this, and the extending length can be freely changed to adjust the sewing position with the sewing machine needle of the pintuck sewing machine. In other words, the position of the knob may be changed.

Furthermore, in the above embodiment, the first
Although the present invention is applied to a device to which the second guide plate 2 is attached, the present invention is not limited to this, and the second guide plate 13 is attached to the upper base 12.・
It may also be applied to items that are equipped with..., in which case,
As shown in FIG. 6, since the folding direction of the folding portion A' can be freely changed, the combination with the first guide plate 2 of the lower base 1 can be freely changed. By changing the material, a variety of pleat-like folded parts can be formed.

As explained above, the present invention provides a required number of engaging holes that are drilled at predetermined intervals in the width direction with respect to the traveling direction of the sewing fabric, and a hole that is located behind these engaging holes. A base having a recess facing the mating hole, a parallel plate portion protruding from an engaging pin that fits into the engaging hole of the base, and a parallel plate portion extending from the parallel plate portion to the recess at a predetermined angle. a radiation plate portion, a required number of guide plates having clamping pieces integrally formed at the tip of the radiation plate portion and buried in the recess of the base; Since the clamping piece is provided with a magnet piece that attracts and fixes the clamping piece to the base, the clamping piece of the guide plate can form the desired fold on the sewing fabric simply by releasing the attraction of the magnet piece. The guide plate can be removed or attached, and the folding interval of the sewing fabric can be varied.

In addition, with conventional models in which the guide plate is integrally fixed to the base or in which the guide plate is provided in the engagement groove of the base, there is a problem in that it takes time and effort to replace the guide plate. This problem is solved by allowing the guide plate to be easily attached to the base using an engaging pin and a magnet piece.

Furthermore, the production of conventional bases was laborious and time-consuming, and the cost was high.In contrast, the present invention has an appropriate number of simple-shaped engagement holes and simple-shaped recesses in the base. It is only necessary to form the wafer, so it is easy to manufacture, reduces processing time and costs, and has an economical advantage.

[Brief explanation of the drawing]

1 to 4 show an embodiment to which the present invention is applied, in which FIG. 1 is a partially cutaway perspective view, FIG. 2 is a plan view,
Figure 3 is a side sectional view taken along line Y-Y' in Figure 2;
The figure is a side sectional view showing the assembled state, and Figures 5 and 6 are Figure 4 z-z' showing a part of an example of application of the guide plate of the present invention.
It is a simplified front view seen along the line. A... Sewing fabric, 1... Base, 2...
...Guide, 3...Engagement hole, 4...
- Concave portion, 5... Parallel plate portion, 6... Radiation plate portion, 8... Engagement pin, 9... Clipping piece, 10, 11 ...Magnet piece.

Claims (1)

[Scope of utility model registration request] A required number of engagement holes are drilled at predetermined intervals in the width direction in the direction of movement of the sewing fabric, and a recess is provided behind these engagement holes and facing the engagement holes. a base, a parallel plate portion protruding from a bottle that fits into an engagement hole of the base, a radiation plate portion extending from the parallel plate portion at a predetermined angle to the recess, and a tip of the radiation plate portion. a required number of guide plates having clamping pieces that are integrally formed with the base and embedded in the recesses of the base; and the clamping pieces of the guide plates that are embedded in the recesses of the base and are fixed to the base by suction. A pin tuck device for a pin tuck sewing machine, characterized in that it is equipped with a magnetic piece that is