JPS6135187Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a pleat cloth guide device in a sewing machine that guides two pieces of pleated cloth to the sewing machine sewing section so that they are overlapped vertically and sewn along the pleat lines. Regarding the opening/closing mechanism.

Conventionally, when sewing pleated skirts, etc., it was necessary to sew two pieces of cloth with pleats and overlap them vertically while aligning the pleat lines. Jitsugan Showa 56
104772 (specification and drawings) is known, and as shown in FIG. 1, this device is installed on the sewing machine bed surface ( A base plate (lower cloth guide) 1 fixed to a base plate (not shown), a lower cloth guide provided on one side edge of the base plate 1 and formed in a V-shaped groove opening upward along the cloth feed line passing through the sewing machine seam part 2. A first frame 3 whose proximal end is supported on the base plate 1 so as to be rotatable about an axis along the cloth feeding direction; a lower end supported on the free end of the first frame 3 and placed within the V-groove of the lower cloth guide 2; a plate 4 whose edges can be fitted;
A second frame 5 is disposed above the first frame 3 and has its proximal end supported on the base plate 1 so as to be rotatable about an axis along the cloth feeding direction; The lower cloth guide 2 has an upper cloth guide 6 formed in the shape of an inverted V-shaped groove opening downward along the cloth feed line so as to fit the upper edge.
By inserting and arranging the pleat lines of the upper and lower fabrics so that they match between the plate 4 and the plate 4 and between the plate 4 and the upper fabric guide 6, the pleat lines are formed by interlocking the lower fabric guide 2, plate 4, and upper fabric guide 6. The upper and lower fabrics are held together and guided to the sewing machine seam so that they remain aligned. However, in such a conventional method, when placing the upper and lower cloths on the upper and lower sides of the plate 4, the first
The plate 4 is rotated by hand to rotate the second frames 3 and 5.
I had to open and close the top and bottom.

The purpose of this invention is to improve the opening and closing of the first and second frames with ease.

An embodiment of this invention will be described with reference to the drawings, and constituent parts similar to those of the prior art will be denoted by the same numbers and explanations will be omitted.

Reference numeral 7 designates an engaging portion that protrudes from the first frame (partition body) 3 toward the front side of the cloth feed, and 8 designates a second frame (upper This is an engaging portion that protrudes from the cloth guide 5 toward the front in the cloth feeding direction. Control bodies 9 and 10 are separately supported on the sewing machine bed so as to be horizontally movable along the direction intersecting the cloth feeding direction.
is opposite to the lower end of the engaging part 7, and on its upper surface,
A lower part 9a that holds the first frame 3 so that the lower edge of the plate 4 is in a lower position (lowered position) that fits into the groove of the lower cloth guide 2, and a plate 4 provided ahead of the lower part 9a.
The other control body 10 forms a high part 9b that rotates and holds the first frame 3 upward so that it is at an upper position (raised position) spaced apart above the groove of the lower cloth guide 2, and the other control body 10 forms an engaging part. 8, and on its upper surface there is a plate 4 when the first frame 3 is in the downward position.
A lower part 10 that holds the second frame 5 in a lower position where the groove of the upper cloth guide 6 fits into the upper edge.
a, a lower part 10a provided ahead of it and holding the second frame 5 so that the groove of the upper cloth guide 6 is in a lower position separated above the upper edge of the plate 4 when the first frame 3 is in the upper position; A high part 10b is provided ahead of the second frame 5 and rotatably holds the second frame 5 so that the groove of the upper cloth guide 6 is in an upper position above the upper edge of the plate 4 when the first frame 3 is in the upper position. form. A guide plate portion 4a is fixed to the front end of the plate 4 on the front side in the cloth feeding direction, protruding between the guides 2 and 6 from an intermediate portion in the vertical direction and parallel to the cloth feeding surface. As shown in FIG. 6, when the plate part 4a is not present, the pleat fold _l2 of the upper fabric _W2 becomes L-shaped, and the fold lines _l1 and _l2 of the upper and lower fabrics are shifted from the needle drop point, and the plate part 4a is to prevent this, so that the folds l ₁ and l ₂ of the pleats of the upper and lower fabrics W ₁ and W ₂ enter along the grooves of the upper and lower fabric guides 2 and 6, that is,
Guide so that the lower cloth W ₁ forms a V-shape and the upper cloth W ₂ forms an inverted V-shape (Fig. 7).

11 and 12 are electromagnets, and connecting rods 13 and 14
are connected to the control bodies 9 and 10 separately through the energizing means, and when each is energized, the connecting rods 13 and 14 are pulled to move the control bodies 9 and 10 to the right in FIG. The engaging portions 7 and 8 are engaged with each other. The first and second frames 3 and 5 each have a leaf spring 15 that engages with the upper end surface and applies elastic force to the lower position.
15 (only one is shown).

In FIG. 5, the electromagnets 11 and 12 can be independently energized and deenergized by separate manual switches SW ₁ and SW ₂ (for example, operable by pedals, knees, etc.). In particular, when the electromagnet 11 that operates the first frame 3 is energized, the diode D is connected so that the other electromagnet 12 is also energized at the same time.

This invention has the above-described configuration, and when both the electromagnets 11 and 12 are de-energized, the control bodies 9 and 1
0, the engaging parts 7 and 8 are located at the lower part 9 as shown in FIG. 4A.
a, 10a, the first and second frames 3, 5 are in the downward position as shown in FIG. 3A, and in this case, the circuit state shown in FIG. 5 is achieved. When switches SW ₁ and SW ₂ are switched to side a to insert the cloth, both electromagnets 11 and 12 are energized, and both control bodies 9 and 10 are pulled to the right in FIG. , 8 engage with the upper portions 9b, 10b of each control body 9, 10, the first,
The second frames 3, 5 are rotated to the upper position. After arranging the pleat lines to face each other between the lower fabric guide 2 and the plate 4, when the switch SW ₁ is switched to the b side, the electromagnet 11 is deenergized, the control body 9 returns, and the engaging portion 7 is engaged with the lower part 9a (FIG. 4B), and only the first frame 3 is in the downward position (FIG. 3B), and the lower cloth is held between the V groove of the lower cloth guide 2 and the plate 4. be done. Place the upper cloth on the lowered plate 4 of the first frame 3 with the pleat lines aligned, and turn the switch.
By switching SW ₂ to the b side, the electromagnet 12 is deenergized and the control body 10 is returned to its original position (FIG. 4A), and the second frame 5 is placed in the lower position, and the plate 4 and the upper cloth guide 6
Clamp the upper fabric between the inverted V-groove. The leaf springs 15, 15, which are respectively engaged with the upper end surfaces of both sides, prevent vibration when the first and second frames 3, 5 rotate (open and close) due to the extinguishing force of the electromagnets 11, 12, and also This ensures that the upper and lower cloths are held in the lower positions of the frames 3 and 5.

Further, when the sewing machine is driven and the upper and lower cloths are sewn and sent forward in the cloth feeding direction, when the upper and lower cloths enter between this guide device, as shown in FIG. 7, the plate portion 4a
The folds l 1 and l 2 are guided outward by the folds l ₃ , l' ₃ , l ₄ , and l' ₄ of the pleats, and the folds l ₁ and l ₂ are opposed to the upper and lower edges of the plate 4 .

Note that in this embodiment, both electromagnets 11 and 12
In this circuit, in connection with the operation of the manual switch that controls the electromagnet for moving the presser foot up and down, both frames 3 and 5 are connected when lifting the presser foot. A circuit is added to control the electromagnets 11 and 12 so that they are in the upper position and in the lower position when the presser foot is lowered, and both switches are set to the lower position.
It is also possible to configure SW ₁ and SW ₂ to have priority over the presser foot lifting switch.

Furthermore, in this embodiment, the controllers 9 and 10 are moved along the direction intersecting the cloth feeding direction, but
The control bodies 9 and 10 may be formed into circular shapes, with high and low portions formed along the circumferential direction, and the rotation may be controlled by a rotary solenoid or the like.

Further, in this embodiment, the control body 9,
10 is shown in which the movement is controlled, but it may also be moved by hand.

As described above, according to this invention, the separate engaging bodies 7 and 8 protrude separately from the intermediate portions of the upper cloth guide and the partition along the cloth feeding direction, and engage with the lower surface of the engaging body of the partition. The upper surface is provided with a low part 9a that serves as a partition plate and rotatably holds the lower edge of the plate in a laid down position where it fits into the V-shaped groove, and a high part 9b that rotatably holds the plate in a raised position separated above the V-shaped groove. A first control body 9 is formed and movable so as to be displaced relative to the engaging body of the partition body, and an upper cloth guide is formed on the upper surface that engages with the lower surface of the engaging body of the upper cloth guide to form an inverted V-shaped groove. A low part 10a that is rotatably held in a lower position that fits into the upper edge of the plate part in the upper position, and a higher part 10 that is rotatably held in an upper position that is located above the upper edge of the plate part in the raised position.
b, and a second control body 10 that is movable so as to be displaced relative to the engaging body of the upper cloth guide. Since the upper cloth guide and the partition can be opened and closed separately by operation, the work can be done easily and quickly with a simple device, and the efficiency can be significantly improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional pleat sewing cloth guide device, Fig. 2 is an opening/closing mechanism of this embodiment, and Figs. 3 A to C.
is an explanatory diagram showing the opening and closing states of the first and second frames 3 and 5, FIGS. 4A to 4C are explanatory diagrams of the operation of both control bodies 9 and 10 corresponding to FIGS. The circuit diagram, FIG. 6 is an explanatory diagram showing the folds of the pleats of the upper and lower cloths when the plate part 4a is not provided, and FIG. 7 is an explanatory diagram showing the folds of the pleats of the upper and lower cloths when the plate part 4a is provided. be.

Claims (1)

[Scope of Claim for Utility Model Registration] A lower cloth guide 1 disposed close to the front side of the sewing machine seam in the cloth feed direction and having a V-shaped groove 2 along the cloth feed line passing through the seam, and disposed above the lower cloth guide, The upper fabric guide 5 has an inverted V-shaped groove 6 facing upwardly facing the V-shaped groove at its tip, and the base end is supported on the machine frame so as to be rotatable about an axis along the fabric feeding direction, the lower fabric guide and the upper fabric guide. A plate part 4 is disposed between the cloth guide and the upper and lower edges thereof are fitted to the grooves of the upper and lower cloth guides, and the plate part 4 stands up. A pleat cloth guide device for a sewing machine having a partition body 3 rotatably supported on a machine frame, each engaging body 7 protruding from each intermediate portion of the upper fabric guide and the partition body along the cloth feeding direction. , 8, and a lower part 9 that has a partition plate on its upper surface that engages with the lower surface of the engaging body of the partition body and rotates and holds the lower edge of the plate in a laid down position that fits into the V-shaped groove, and a lower part 9 that is placed above the V-shaped groove. A first control body 9 is formed with a high portion 9b that is rotatably held in a raised position that is separated from the partition body, and is movable so as to be displaced relative to the engaging body of the partition body; and an upper surface that engages with the lower surface of the engaging body of the upper cloth guide. Then, the upper cloth guides the inverted V-shaped groove to rotate and hold it in the lower position where it fits into the upper edge of the plate part in the laid down position, and to the upper position located above the upper edge of the plate part in the raised position. An opening/closing mechanism for a pleat cloth guide device in a sewing machine, comprising: a second control body 10 that forms a high position 10b for rotational holding and is movable so as to be displaced relative to an engaging body of an upper cloth guide.