JPH09192369A - Device for forming bent edge incorporating core - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily and accurately form a bent edge incorporating a core by providing a fixed bending spatula properly spaced on a sewing machine table and at the same time, also providing a bending spatula on the sliding vertical side for forming a bent edge on a cloth between the fixed bending spatula and the bending spatula on the sliding vertical side. SOLUTION: When stitching a bent edge incorporating a core, first a transfer means is actuated to set bending spatulas 5, 6 on the sliding vertical side to forward limits. Next, a core cloth B is sandwiched between the guide members 21, 22 of a fixed bending spatula 2. After that, the bent line A1 of a cloth A is stacked on the core cloth B, then the bent edge A1 and the core cloth B are held down. Further, the spatulas 5, 6 on the sliding vertical side positioned at the forward limits by the transfer means are moved backward to the receding limits. In addition, the bent edge A1 of the cloth A is bent in such a state that the fixed bending spatula 2 is held between the spatulas 5, 6 on the sliding vertical side. Finally, the sewing machine is operated to stitch the edge area A2 of the bent edge A1 and cut off a stitched edge piece A3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cored bent edge forming apparatus.

[0002]

2. Description of the Related Art Conventionally, a method of forming a bent edge with a core and sewing the bent edge with a core is usually performed in three steps. That is, after the core is sewn to the edge of the fabric, the free end side of the interlining (inward direction of the fabric) is bent so as to be overlaid on the fabric, and then the edge portion of the bent edge is sewn. . So-called interlining, formation of bent edges, or sewing of edge portions of bent edges is a three-step process. Therefore, there are problems such as requiring labor and poor workability.

As prior art similar to the present invention, (1)
There is a fold-folding device for a cloth disclosed in JP-A-4-71591.
In this invention, the pressing member is positioned above the stacking member on the support plate, the cloth is inserted between the stacking member and the pressing member, and the pressing member is lowered to press down the cloth, and then the stacking member The cloth which overlaps the presser member and the stacking member is lowered by the presser foot of the sewing machine to press it down so that the cloth is overlapped with the presser member and the stacking member. It is designed to be stitched together after being retracted, and is intended to automate folds and balance the fold width. (2) There is a method of sewing a tack on a cloth as disclosed in JP-A-5-123474. According to the present invention, the inner and outer tack forming pieces are provided, and first, the cloth is applied to the three inner tack forming pieces, and one of the two outer tack forming pieces is passed between each inner tack forming piece to form the tuck. The adjuster is inserted inside the base end of the tuck, and then the adjuster and the base end of the tuck are sewn together.Tuck and the adjuster are sewn at the same time, and the tuck sewing time is shortened. It is characterized by doing.
(3) There is a 3-folding device such as Japanese Patent Publication No. 6-9638 for curtain material. This invention is provided with a large number of spatula-shaped plate members for forming folds, and has a structure in which folds are formed by the plate members, and has substantially the same purpose as the above-mentioned (2).

[0004]

Each of the above-mentioned inventions is suitable for forming a fold in the central portion of the cloth or the edge of the cloth in a direction orthogonal to the edge. However, it is unsuitable for producing a fold in the direction parallel to the edge of the cloth (which is a kind of fold in which the folded edge is formed by bending in the width direction intended by the present invention). Is. Therefore, each of the above-described inventions has a different content and structure from the present invention even if the same folds are generated.

Further, in the conventional invention, the interlining and the cloth are not integrally sewn together, which is troublesome.
Also, there are problems such as poor workability.

[0006]

In view of the above, the present invention can easily and accurately form a bent edge with a core, or can sew a bent edge with a core with high efficiency without requiring labor. With the intention of adopting the following configuration.

The cored bent edge forming device of the present invention is a fixed bending spatula provided at an appropriate interval on the sewing machine table, and the fixed bending spatula provided above and below the fixed bending spatula. A sliding upper and lower folding spatula that forms a bent edge on the fabric with a spatula, a moving means that slides the sliding upper and lower folding spatula, and the folding device that is located above the fixed folding spatula. A presser foot for pressing the edge portion of a curved edge, a sewing needle provided on the sewing table for sewing the edge portion, and a sewing table for cutting the sewing edge piece sewn with the sewing needle And a cutting part.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention is shown in FIGS.
2 will be described. First, as shown in FIG. 4, the moving means is operated to position the sliding upper and lower folding spatula at the forward limit. Then, as shown in FIG. 5, the interlining B is attached to the guide member of the fixed folding spatula.
Set in place by pinching or stopping. When the bending edge A1 of the cloth A is superimposed on the interlining material B set in this way as shown in FIG. 6, the interlining material B and the bending edge A1 of the cloth material A are placed on the fixed folding spatula. (Hereinafter referred to as two parties) is set. Then, subsequently, the operation of pressing the two persons set by using the pressing tool is performed. For example, as shown in FIG. 7, the edge portion A2 of the two persons is pressed. When the two are pressed in this way, the sliding upper and lower folding spatula located at the forward limit is retracted by using the moving means to reach the backward limit, as shown in FIG. 8B. The fixed folding spatula is held by the sliding upper and lower folding spatulas, and the folding edge A1 is bent by utilizing the overlapping state of the three. Using this state, as shown in FIG. 9, the bent edge A of the cloth A is
1 Make the whole bent state. That is, the bent edge A1
The entire width direction L indicated by the arrow is a bent tubular shape.

Since the bending work of the bending edge A1 of the fabric A is completed by the operations and procedures described above, sewing is started. That is, as shown in FIG. 10, the sewing machine is operated to sew the edge portion A2 of the bent edge A1 with the sewing machine needle. Then, as shown in FIG. 12, the sewing edge piece A3 is cut almost simultaneously with this sewing using a cutting portion (cutter).
By repeating the above-described operations and procedures such as sewing and cutting, as shown in FIGS.
4 is sewn. In addition, the figure (a) shows the state at the end of sewing,
The same figure (b) shows a state in which the bent edge A4 with the core is expanded after the sewing is completed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a sewing machine table, and a fixed folding spatula 2 is provided on the sewing machine table 1 at an appropriate interval H. In this example, a mounting base 3 provided on the sewing machine table 1 is used. A fixed folding spatula 2 is provided on the sewing machine table 1 with a space H. Further, the mounting base 3 is provided with a control section 41 of a moving means 4 having a built-in cylinder (an example).
A sliding upper and lower folding spatula, which will be described later, is provided through the telescopic arm 42 provided at the. Reference numeral 43 in the figure denotes a stopper provided on the expandable arm 42. That is, the sliding upper and lower folding spatula is in the forward limit when the telescopic arm 42 is at the extension end, and the sliding upper and lower folding spatula is in the backward limit when the stopper 43 is stopped by the control portion 41. It is a configuration. Of course, there may be a case where a shock absorbing means is provided for the stop. The sliding upper and lower folding spatulas 5 and 6 are provided via a mounting plate 7 provided on the free end 42a of the telescopic arm 42, and the sliding upper folding spatula 5 is located above the fixed folding spatula 2. Also, this sliding lower bent spatula 6
Are located below the fixed folding spatula 2, respectively,
These three (fixed folding spatula 2 and sliding upper and lower folding spatula 5,
Say six. The folded state of the bent edge A1 is formed by the superposition of). Therefore, there is a gap between the three members (see FIG. 8B). In the figure, 21 and 22 are fixed folding spatula 2
The guide member which stops the interlining material B provided in FIG. It is to be noted that the three materials are ideally transparent materials such as transparent and semi-transparent materials that allow the fabric A and the like to be visually recognized, but the materials are not limited thereto.

Numeral 8 in the figure is a holding tool provided above the base end of the fixed folding spatula 2 and is a bending edge A1 formed between the three members.
The edge portion A2 is pressed down. Reference numeral 81 is a handle of the presser foot 8.

Reference numeral 9 in the figure denotes a movable means for moving the fixed folding spatula 2, the sliding upper and lower folding spatulas 5, 6 and the moving means 4 and the holding tool 8 with respect to the sewing machine table 1. Then, a mounting plate 91 provided on the sewing machine table 1, a pair of support plates 92 and 93 provided on the sewing machine table 1 and the mounting plate 91, and an adjusting screw shaft 94 provided on the pair of support plates 92 and 93. And a set screw 95 for fixing the sewing machine table 1 and the mounting plate 91,
The support plate 92 (or 9) is inserted through the screw-in and screw-back of the screw shaft 94.
3) is moved, and the mounting base 3 is moved forward and backward by the movement of the support plate 92 (or 93). Of course, since the movable means 9 is an example, the fixed folding spatula 2, the sliding upper and lower folding spatulas 5, 6 and the moving means 4 and the presser 8 can be moved with respect to the sewing machine table 1. , Other configurations may be used.

In the figure, 10 is a sewing needle, 11 is a cutting portion, and 12
Shows the guide tool of the cloth A which can be changed, respectively.

[0015]

As described above, according to the present invention, the sewing machine table is provided with the fixed folding spatula, the sliding upper and lower folding spatulas, the moving means, and the retainer, and the cloth and interlining provided on the fixed folding spatula are provided. After pressing with a presser, a folding edge is formed through sliding of the sliding upper and lower folding spatula and lamination and superposition on the fixed folding spatula, and then sewing and sewing of the edge portion of this folding edge. The sewing edge piece is cut and the bent edge with the core is sewn. Therefore, it has the following effects.

(1) The bent edge with a core can be sewn with high efficiency and without any trouble.

(2) The bent edge with a core can be sewn easily and accurately. And the finish is beautiful.

(3) In particular, sewing and cutting can be performed in one step, which is useful for improving efficiency and simplifying work.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a relationship between a fixed folding spatula provided on a sewing machine table, a sliding upper and lower folding spatula, a moving unit, and a holding tool.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view illustrating a relationship between a fixed folding spatula provided on a sewing machine table, a sewing needle, and a cutting portion.

FIG. 4 is a plan view illustrating a state in which a sliding upper and lower folding spatula is in a forward limit with respect to a fixed folding spatula.

FIG. 5 is a plan view illustrating a state in which an interlining is provided on a fixed folding spatula.

FIG. 6 is a plan view illustrating a state in which an interlining is provided on a fixed folding spatula and a fabric is provided on the interlining.

FIG. 7 is a plan view illustrating a state in which an interlining material and a cloth material are provided on a fixed folding spatula and a pressing tool is operated.

FIG. 8A is a plan view illustrating a state in which a sliding upper and lower folding spatula is retracted to form a bent edge, and FIG. 8B is a side view illustrating a state of the bent edge.

FIG. 9 is a plan view illustrating a state in which a bent edge is provided on the entire fabric.

FIG. 10 is a plan view illustrating a state in which a bent edge is sewn on.

FIG. 11 is a plan view illustrating a cutting state of the sewing edge piece.

FIG. 12A is a perspective view illustrating a sewing state of a bent edge with a core, and FIG. 12B is a perspective view illustrating a state in which the bent edge is sewn.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sewing machine table 2 Fixed folding spatula 21 Guide member 22 Guide member 3 Mounting base 4 Moving means 41 Control part 42 Telescopic arm 42a Free end 43 Stopper 5 Sliding upper side folding spatula 6 Sliding lower side folding spatula 7 Mounting plate 8 Holding device 81 Handle 9 Moving means 91 Mounting plate 92 Support plate 93 Support plate 94 Screw shaft 95 Set screw 10 Sewing machine needle 11 Cutting part 12 Guide tool A Fabric A1 Folding edge A2 Edge part A3 Sewing edge piece A4 Core bending Edge B Interlining H Interval L Width direction

Claims (2)

[Claims] 1. A fold edge is formed on a cloth between a fixed folding spatula provided on a sewing machine table at an appropriate interval and the fixed folding spatula provided above and below the fixed folding spatula. A sliding upper and lower bending spatula to be formed, a moving means for sliding the sliding upper and lower bending spatula, and a retainer for pressing an edge portion of the bent edge located above the fixed bending spatula, A core including a sewing needle provided on the sewing table for sewing the edge portion and a cutting portion provided on the sewing table for cutting a sewing edge piece sewn by the sewing needle. Forming device for bent edge. 2. The device for forming a cored bent edge according to claim 1, wherein the fixed bending spatula, the sliding upper and lower bending spatula, the moving means, and the pressing tool are configured to be movable on the sewing machine table.