JP2000157771A - Fabric folding guide for sewing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a sewing work efficiency by providing a fabric folding section to guide a fabric in the width direction, on a folding guide which fold-guides the band-shape fabric into a state wherein the edge sections of the fabric body are covered, and providing a preventing means which prevents the side edge sections of the fabric from being folded in the width direction, on the fabric folding section. SOLUTION: When a band-shape fabric B is cover-sewn along the edge section of the fabric body while folding the fabric B by a fabric folding guide 1, first, the folding guide 1 is variably adjusted in a manner to become approx. rectangular to the edge section of the fabric body which is fed to a sewing location D. Also, a fixing screw 25 is loosened, a protuberance 24b of a width contracting member 24 is removed from a guide hole 23a of a cylindrical flat path which is formed on a fabric developing section 19. In addition, a protuberance 35b of a regulating member 35 is removed from a guide hole 31c of a side passage which is formed on a fabric folding section 20. Then, the fabric B is developed in the width direction, and stretched on a stretching section 37b of a fabric guide, and the edge section is folded inward by inserting the edge section in the cylindrical flat path of the fabric developing section 19, and the edge section is sewn by a sewing machine C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth folding guide for a sewing machine which is used for guiding a band-shaped cloth into a state in which an edge of a cloth main body is covered, for example, when sewing with a sewing machine.

[0002]

2. Description of the Related Art Conventionally, when a fold guide such as that described above is guided into an arbitrary fold state in which the edge of the fabric body is covered, for example, fold guides dedicated to two-fold, three-fold, and four-fold are provided. After fixing to the side of the sewing position of the needle plate constituting the sewing machine, the band-shaped cloth is developed in the width direction and inserted into the folding guide.

[0003] A fabric folding guide for folding one side edge or both side edges of the fabric inserted in the folding guide inward and covering the fabric along the edge of the fabric body supplied to the sewing position is provided. It is already commercially available.

[0004]

However, the above-mentioned fabric folding guide must be replaced with a folding guide exclusively for two-fold, three-fold, or four-fold each time the way of folding the fabric is changed. , Not only the replacement work takes time and effort, but also until the replacement work is completed.
Since the sewing operation is temporarily interrupted, there is a problem that as the number of replacements of the folding guide increases, the number of sewn objects to be sewn per unit time decreases, and the working efficiency deteriorates.

In addition, a plurality of folding guides must be manufactured or prepared in advance depending on how the fabric is folded, which makes handling and management of the folding guides cumbersome. When the type and number of folding guides used at the time of folding the fabric are increased, there is also a problem that the sewing cost increases.

SUMMARY OF THE INVENTION In view of the above problems, according to the present invention, the fold prevention means provided at the fold portion of the fabric prevents the edge of the fabric from being folded or cancels the prevention of the folding, so that the fabric is folded into an arbitrary folded state. It is an object of the present invention to provide a fabric folding guide for a sewing machine capable of improving the efficiency of sewing work and reducing sewing cost.

[0007]

According to the first aspect of the present invention,
A cloth folding guide for a sewing machine that guides a band-shaped cloth into a state in which an edge of a cloth main body is covered during sewing by a sewing machine, and includes a cloth folding part that guides the cloth in a width direction. In addition, the present invention is a fabric folding guide for a sewing machine provided with a folding preventing means for preventing one side edge or both side edges of the fabric from being folded in the width direction at the fabric folding portion.

According to a second aspect of the present invention, in addition to the structure of the first aspect, the cloth is developed and supplied to the end of the cloth fold in the width direction with respect to the cloth fold. A fabric folding guide for a sewing machine, wherein a developing portion is continuously provided, and the fabric folding portion and / or a folding width varying means for varying a folding width of the fabric is provided in the fabric developing portion.

According to a third aspect of the present invention, in addition to the configuration of the first aspect, the folding preventing means is provided with a regulating member facing the edge of the fabric supplied to the fabric folding portion. The regulating member is a cloth folding guide for a sewing machine, which is provided so as to be in contact with an edge of the cloth and to be movable to a position where the contact is avoided.

According to a fourth aspect of the present invention, in addition to the configuration of the second aspect, the folding width changing means is provided with a width shifting member facing the edge of the fabric supplied to the fabric developing section. Further, it is a fabric folding guide for a sewing machine, wherein the width shifting member is provided so as to be able to abut on an edge of the fabric and to be movable to a position where the abutment is avoided.

The invention according to claim 5 is the invention according to claims 1 and 2.
Or, in addition to the configuration described in 3, the fabric folding section is a fabric folding guide for a sewing machine provided so as to be movable in a horizontal direction and / or a vertical direction.

[0012] The invention according to claim 6 is the invention according to claim 1,
In addition to the configuration described in 2, 3, or 5, the fabric folding section is a fabric folding guide for a sewing machine provided so as to be rotatable in vertical and / or horizontal directions.

[0013]

According to the first aspect of the present invention, the folding guide for sewing machine prevents one side edge or both side edges of the fabric from being folded in the width direction by the folding preventing means, or cancels the folding prevention. Therefore, the fabric supplied to the fabric folding section can be folded into an arbitrary folded state (for example, a two-fold state, a three-fold state, or a four-fold state).

According to the second aspect of the present invention, in addition to the operation of the first aspect, since the entire width of the cloth is adjusted by the folding width varying means, the folded side edge of the cloth is wide or wide. It can be folded narrow and the edge of the fabric can be folded to any width.

According to the third aspect of the present invention, in addition to the function of the first aspect, the fabric folding guide for the sewing machine abuts one side edge of the fabric against the regulating member to prevent the fabric from being folded, thereby avoiding the abutment. Since the other side edge is folded, one side edge or both side edges of the fabric can be folded or the folded state can be changed.

According to the fourth aspect of the present invention, in addition to the operation of the second aspect, the edge of the fabric is brought into contact with the width adjusting member to adjust the width of the entire fabric. The folding side edge is folded to an arbitrary width, and the folding width of the fabric can be varied only by moving the width shifting member to an arbitrary position.

According to a fifth aspect of the present invention, in addition to the operation of the first, second, or third aspect, the fabric folding guide moves the fabric folding section in a horizontal direction (for example, left, right, front and rear), or vertically. Since the height and the position of the cloth are variably adjusted by moving in a direction (for example, up and down), the work of coating the cloth can be performed smoothly.

According to a sixth aspect of the present invention, in addition to the operation of the first, second, third, or fifth aspect of the present invention, the fabric folding guide rotates the fabric folding section in the vertical direction or the horizontal direction. By moving, for example, it is variably adjusted to any angle suitable for covering the fabric, the work of covering the fabric can be performed smoothly.

[0019]

According to the present invention, the fold-inhibiting means prevents the edge of the fabric from being folded in or released, so that the fabric can be folded into an arbitrary folded state. The finishing condition is good, the sewing can be performed neatly, and the work of sewing in a state where the edge of the fabric main body is covered can be performed stably and smoothly.

Moreover, since the fabric can be folded into an arbitrary folded state by one fabric folding guide, there is no need to manufacture or prepare a plurality of folding guides as in the conventional example, and the folding guides can be folded. Since the labor and work for replacement can be omitted, the work time when changing to an arbitrary folded state can be shortened, and the efficiency of sewing work can be increased and sewing cost can be reduced.

Further, since the whole fabric is brought closer to the width by the folding width changing means and the folded side edge of the fabric is widened or narrowed, the folded side edge of the fabric can be folded to an arbitrary width. It can be sewn to the desired folded state.

Furthermore, since the regulating member is moved to a position where it comes into contact with or avoids contact with the edge of the fabric, the edge of the fabric is prevented from being folded or allowed to be folded.
By simply moving the regulating member to an arbitrary position, the operation of folding one side edge or both side edges of the fabric or changing the folded state can be easily performed.

Still further, the width-adjusting member is moved to a position where it abuts or is prevented from contacting the folded-side edge of the cloth, and the entire cloth is shifted. It can be folded to an arbitrary width, and by simply moving the width-shifting member to an arbitrary position, the operation of folding the edge of the fabric to an arbitrary width and changing the folding width can be easily performed.

Furthermore, the fabric folding section is moved in the horizontal and / or vertical directions, and is rotated in the vertical and / or horizontal directions, for example, so as to have any height and position suitable for covering the fabric. , The angle can be variably adjusted, so that the operation of folding the fabric into an arbitrary folded state and the operation of covering the edge of the fabric main body can be performed smoothly.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawing shows a cloth folding guide for a sewing machine which is used to guide a band-shaped cloth into a state in which the edge of the cloth main body is covered during sewing by the sewing machine. FIG. Fabric folding guide 1
The edge A of the cloth body A supplied to the sewing position D set on the needle plate Ca is attached to the edge of the needle plate Ca constituting the sewing machine C.
a is attached almost perpendicularly to a and has an arbitrary width (for example, about 18 mm,
The band-shaped cloth B formed to a length of about 24 mm and about 28 mm) is guided in a state of being covered with the edge Aa of the cloth main body A supplied to the sewing position D while being folded in the width direction.

The fabric body A and the fabric B are made of a single material such as chemical fiber or natural fiber or a composite material.

In the above-described fabric folding guide 1, as shown in FIGS. 2 and 3, the mounting plate 3 and the guide body 4 are integrally connected by a support shaft 2 formed in a substantially L-shape.

One end of the support shaft 2 is supported by the bearing member 7 so as to be freely rotatable and movable left and right. The bearing member 7 is mounted to be vertically movable with respect to the front side of the support portion 3 a erected on the rear end side of the mounting plate 3.

A fixing screw 8 screwed onto the upper surface of the bearing member 7
Is radially abutted against the shaft peripheral surface on one end side of the support shaft 2, and the abutting force fixes the one end side of the support shaft 2 so as not to rotate and not to move.

The fixing by the fixing screw 8 is released, and the guide body 4 is turned up and down at an arbitrary angle about one end of the support shaft 2, and the edge Aa of the cloth body A supplied to the sewing position D is provided. Move horizontally in the direction parallel to.

A fixing screw 9 screwed to the rear side of the bearing member 7
Is vertically movably engaged with the guide hole 3b formed in the support portion 3a, and fixes the bearing member 7 so as not to be vertically movable with respect to the front side of the support portion 3a.

The fixing by the fixing screw 9 is released, and the guide body 4 is moved up and down to an arbitrary height along the guide hole 3b of the support portion 3a.

On the other hand, the other end of the support shaft 2 is
The bearing member 12 is freely rotatable and movable back and forth with respect to a bearing member 12 fixed to a central portion on the back side of the vehicle.

The fixing screw 13 screwed onto the upper surface of the bearing member 12 is radially abutted against the shaft peripheral surface on the other end side of the support shaft 2, and the abutting force causes the fixing screw 13 to be connected to the other end side of the support shaft 2. Is fixed so that it cannot rotate and cannot move.

The fixing by the fixing screw 13 is released, and the guide main body 4 is rotated left and right at an arbitrary angle about the axis at the other end of the support shaft 2, or the guide of the cloth main body A supplied to the sewing position D is provided. It moves back and forth in the direction facing the edge Aa.

The above-mentioned mounting plate 3 is mounted so as to be movable back and forth and horizontally rotatable with respect to the edge of the needle plate Ca constituting the sewing machine C. Note that the mounting plate 3 may be directly fixed to the sewing machine table Ce constituting the sewing machine C.

A fixing screw 14 is movably engaged with a substantially cross-shaped guide hole 3c formed on the front end side of the mounting plate 3 via a guide member 16 described later in an arbitrary direction. A fixing screw 15 is movably engaged with an arbitrary direction in the formed substantially T-shaped guide hole 3d.

The fixing screws 14 and 15 are provided in the guide holes 3c and 3
d, and is screwed to the edge of the needle plate Ca,
Is immovably fixed to the needle plate Ca.

The fixing by the fixing screws 14 and 15 is released, and the fabric folding guide 1 is moved back and forth in the direction facing the edge Aa of the fabric main body A supplied to the sewing position D,
It is horizontally rotated at an angle orthogonal or intersecting with the edge Aa to fix the band-shaped cloth B at an optimum angle and position to cover the edge Aa of the cloth main body A.

The fixing screw 14 described above is
The guide member 16 is released so as to be movable back and forth with respect to the guide hole 16a formed at the sewing position D, and the guide member 16 is moved to the sewing position D.
To guide the fabric B so as to be covered with the edge Aa of the fabric main body A.

As shown in FIGS. 4, 5 and 6, the guide body 4 has a cloth developing portion 19 for developing the band-shaped cloth B in the width direction, and the developed cloth B is folded in an arbitrary manner. A fabric folding section 20 that folds into a state (for example, a two-fold state, a three-fold state, or a four-fold state) is provided in front and back.

The cloth deploying portion 19 has a substantially flat cross section from the base end to the distal end, and is formed in a tubular flat shape in which the fabric B is developed in the width direction.

The cylindrical flat path 2 formed in the cloth developing section 19
The front and rear inner wall surfaces 3 are set at intervals at which the developed state of the fabric B is maintained, and the upper and lower inner wall surfaces are set at intervals wider than the developed width of the fabric B.

At the rear upper and lower end portions of the fabric development section 19, a width shifting member 24 is attached movably back and forth along a tubular flat path 23.

A fixing screw 25 screwed to the rear surface of the cloth spreading portion 19 is movably engaged with a guide hole 24a formed on the base end side of the width shifting member 24,
Is immovably fixed to the rear side of the cloth deploying portion 19.

Projection 2 formed on the tip side of width shifting member 24
4b is bent and formed to have a size and an angle (substantially right angle) to come into contact with the edge Ba of the fabric B inserted into the tubular flat path 23.

The projection 24b is engaged with a guide hole 23a formed in a rear surface portion on the distal end side of the cylindrical flat path 23 so as to be able to protrude and retract and to move back and forth. It guides to a state where the width is shifted to the lower side.

The fixing by the fixing screw 25 is released, the width shifting member 24 is moved back and forth, and the projection 25b is
The fabric B is moved back and forth along the direction 3a, and is fixed at a position where the edge Ba of the fabric B is shifted to the width, or is pulled out from the guide hole 23a.

The above-described fabric folding portion 20 is formed in a shape that gradually tapers from the base end to the tip end.

The base end side opening of the folding passage 31 formed in the fabric folding part 20 is formed so that the edges Ba and Ba of the fabric B are folded inward, and the tip side opening is formed on the tip side. When viewed from above, the fabric B is formed into a shape that is folded in a substantially horizontal W shape.

The main passage 31a formed at the center of the folding passage 31 is formed into a curved shape in which the center of the fabric B is bent substantially in a mountain shape when viewed from the front end side.
Are formed at an angle and a shape that allows the edge Ba of the fabric B to be bent with respect to the direction facing the center when viewed from the front end side, and the passages 31a and 31b are formed as follows. The amount of bending and the amount of bending are formed so as to gradually increase from the base end toward the distal end.

The folding member 33 and the regulating member 35 are mounted on the rear side of the fabric folding section 20 along the side passage 31b of the folding passage 31 so as to be movable back and forth.

The fixing screw 33 screwed to the rear side of the fabric folding section 20 has a guide hole 32a formed on the base end side of the folding member 32 and a guide hole 35a formed on the base end side of the regulating member 35. Movably engaged with the folding member 32
And the regulating member 35 is immovably fixed to the rear side of the folded-in section 20.

The folding piece 32b formed at the tip of the folding member 32 is bent substantially at a right angle to the edge Ba of the fabric B fed out from the side passage 31b.

The folded piece 32b is engaged with the projecting side end of the guide portion 34 formed at the center of the front end of the fabric folded portion 20, and the edge B of the fabric B fed out from the side passage 31b.
a is guided substantially at right angles to a direction parallel to the fabric feeding direction.

The guide portion 34 is formed in a curved shape with a smooth concave surface in the fabric feeding direction, and guides the fabric B fed from the folding passage 31 in a substantially horizontal U-shape.

The protrusion 35 formed on the tip side of the regulating member 35
“b” is bent and formed to have a size and an angle (substantially right angle) in contact with the edge Ba of the fabric B inserted into the side passage 31b.

The protrusion 35b is engaged with the guide hole 31c formed in the rear surface on the front end side of the side passage 31b so as to be able to protrude and retract and to move back and forth, so that the edge Ba of the fabric B is regulated to the main passage 31a side. Guide to the state.

The projections 24b of the width shifting member 24 and the projections 35b of the regulating member 35 are of a plate thickness that allows for a retracting operation and a longitudinal movement, and have a smooth curved surface shape (for example, a triangle, Trapezoidal, semicircular, elliptical, etc.).

After the fixing by the fixing screw 33 is released, the folding member 32 and / or the regulating member 35 are moved back and forth so that the folding piece 32b of the folding member 32 faces the edge Ba of the fabric B fed from the side passage 31b. The cloth B is fixed in a position where the folded state of the cloth B is maintained and the edge Aa of the cloth main body A is covered.

The protrusion 35b of the regulating member 35 is moved back and forth along the guide hole 31c of the side passage 31b,
The edge Ba of the fabric B is fixed at a position regulated by the main passage 31a, or is pulled out from the guide hole 31c of the side passage 31b.

The folding member 32 and the regulating member 35 described above may be variably adjusted to any fixed positions according to, for example, the thickness of the fabric B, the material, the knitting state, and the folding state.

The cloth guide 37 fixed to the center of the mounting plate 3 has a size and shape for guiding the cloth B into the cloth developing section 19.

A fixing screw 38 engaged with the base end 37a of the fabric guide 37 is screwed to the center of the mounting plate 3 to fix the fabric guide 37 in a state where it is horizontally rotated at an arbitrary angle.

The stretching portion 37b formed on the free end side is formed in a meandering shape in the vertical direction, and guides the fabric B in a state where it is spread in the width direction.

The base end 37a of the fabric guide 37 is
For example, it may be fixed to the rear surface side of the guide body 4, and the stretched portion 37b on the free end side may be formed in an arbitrary shape such as a wave shape or a ring shape. Further, instead of the cloth guide 37, the cloth B may be unfolded and guided using, for example, a plate-shaped guide.

The illustrated embodiment is constructed as described above. Hereinafter, when sewing with the sewing machine C, the fabric body A
A method of covering and sewing along the edge Aa of the first embodiment will be described. First, when a fabric B (for example, width = about 28 mm) is sewn in a four-fold state, the fabric folding guide 1 is moved to the fabric body A supplied to the sewing position D as shown in FIGS. Variably adjusted so as to intersect approximately orthogonally or at an arbitrary angle with the edge Aa of the, and set the height, angle, and inclination to be optimal for covering the fabric B, and then release the fixation by the fixing screw 25. , A tubular flat path 23 formed in the cloth deployment section 19
The protrusion 24b of the width shifting member 24 is extracted from the guide hole 23a.

The fixing by the fixing screw 33 is released, and the guide hole 3 of the side passage 31 b formed in the folded-in portion 20 is formed.
The protrusion 35b of the regulating member 35 is extracted from 1c. Also,
The protrusion 35b may be inserted into one guide hole 31c, or the width shifting member 24 and the regulating member 35 may be removed.

Next, the fabric B is spread in the width direction, stretched over the stretched portion 37b of the fabric guide 27, inserted into the tubular flat path 23 of the fabric spreading portion 19, and the fabric B is spread. In this state, it is inserted into the folding passage 31 of the fabric folding section 20.

The cloth B is inserted into the main passage 3 of the folding passage 31.
1a and the side passage 31b, the central portion of the fabric B inserted into the main passage 31a is bent in a substantially mountain shape, and the edge Ba of the fabric B inserted into the side passage 31b is folded in a direction facing the central portion. Bending and feeding the fabric B continuously in the length direction while folding the entire length of the fabric B so as to be substantially W-shaped when viewed from the front end side.

At the time of folding, the protrusion 35b of the regulating member 35 is removed from the guide hole 31c of the side passage 31b.
5b, it is folded inward along the side passage 31b.

Next, as shown in FIGS. 7 and 10, the edges Ba and Ba of the fabric B fed from the folding passage 31 are folded inward, and the fabric B is substantially perpendicular to the guide body 4. In the feeding direction (fabric feeding direction), and
Insert In addition, the edge portion Aa of the fabric body A is
4 is supplied to a substantially central portion.

The cloth B is inserted into the folding piece 32 of the folding member 32.
a, and is folded along the edge Aa of the fabric main body A while being folded in four when viewed from the front end side.

On the other hand, as shown in FIG. 2, the cloth B folded in a four-fold state is supplied to the sewing position D on the needle plate Ca constituting the sewing machine C while covering the edge Aa of the cloth main body A. Then, the fabric B is sandwiched between the presser foot Cb and the feed dog Cc while covering the edge Aa of the fabric main body A.

The sewing machine C is driven to move the presser foot Cb up and down and the feed dog Cc to move the cloth B in a folded state in a state where the four-folded cloth B is covered on the edge Aa of the cloth main body A. (In the direction of the arrow). The sewing machine needle Cd is moved up and down in conjunction with the feed operation, and the cloth B is moved to the cloth main body A.
Is sewn along the edge Aa.

Next, the cloth B (for example, width = about 24 mm) is
When sewing in a three-fold state, as shown in FIGS.
b, the projection 35b of the lower regulating member 35 is inserted into the guide hole 31c.
And the lower edge Ba of the fabric B is prevented from being folded by the projection 35 b of the regulating member 35.

On the other hand, the guide hole 3 of the upper side passage 31b
1c, the protrusion 35b of the upper regulating member 35 is pulled out, and the upper edge Ba of the fabric B is folded inward along the side passage 31b, so that the fabric B is folded in three in the same manner as described above. A can be sewn along the edge Aa.

When the projection 35b of the upper regulating member 35 is inserted into the guide hole 31c of the upper side passage 31b, the upper edge Ba of the fabric B is prevented from being folded by the projection 35b, and the lower edge Ba of the fabric B is moved inward. Can be folded into

At the time of four-folding and three-folding, as shown in FIG. 4, the upper guide member 23 is inserted into the upper guide hole 23a of the tubular flat path 23 formed in the cloth spreading portion 19.
4 is inserted, the upper edge Ba of the fabric B is brought into contact with the projection 24b of the width shifting member 24, and the entire fabric B is folded toward the lower side passage 31b, so that the upper edge of the fabric B is folded. The folded width of the portion Ba can be reduced.

In the lower guide hole 23a of the cylindrical flat path 23,
When the projection 24b of the lower width shifting member 24 is inserted, the entire cloth B is shifted to the upper side passage 31b, and the cloth B
Of the lower edge Ba can be narrowed. Conversely, when the protrusion 24b is removed, the folding width can be increased.

Next, the cloth B (for example, width = about 24 mm) is
When sewn in a folded state, as shown in FIGS. 9 and 12, the upper and lower side passages 31 formed in the fabric folding portion 20 are formed.
b of the upper and lower regulating member 35 in the guide hole 31c of FIG.
And the edges Ba, Ba of the fabric B are
Since the folding is prevented by the protrusions 35b of the fifth fabric, it is possible to sew the fabric B in a state where the edge Aa of the fabric main body A is covered while folding the fabric B into two folded states.

As described above, the protrusion 35b of the regulating member 35
Appearing in the guide holes 31c of the side passages 31b formed in the fabric folding portion 20 to prevent or release the edge Ba of the fabric B, so that the fabric B is folded into an arbitrary folded state. And the finished condition after sewing is good and the sewing can be performed neatly.
Can be stably and smoothly performed in a state where the edge portion Aa is covered.

Further, the fabric B can be folded into an arbitrary folded state by one fabric folding guide 1.
There is no need to manufacture or prepare a dedicated folding guide as in the conventional example, and the labor and work of replacing the folding guide can be omitted, so that the working time when changing to an arbitrary folding state is shortened. In addition, the efficiency of the sewing operation can be increased and the sewing cost can be reduced.

Further, the protrusion 24b of the width shifting member 24 is
Guide hole 2 of cylindrical flat path 23 formed in cloth development section 17
3a, the fabric B contacting the projection 24b of the width-shifting member 24 is shifted upward or downward, so that the edge Ba of the fabric B can be folded to an arbitrary width or the folded width can be changed. The work can be performed reliably and easily, and the desired folded state can be sewn and finished.

Furthermore, the guide body 4 can be moved in a horizontal direction and / or a vertical direction, or rotated in a vertical direction and / or a horizontal direction, for example, to have an arbitrary height suitable for covering the fabric B, Since the position and the angle are variably adjusted, the operation of folding the fabric B into an arbitrary folded state and the operation of covering the edge Aa of the fabric main body A can be performed smoothly.

In the correspondence between the structure of the present invention and the above-described embodiment, the fold preventing means of the present invention corresponds to the regulating member 35 of the embodiment.
The present invention is not limited only to the configuration of the above-described embodiment, although it corresponds to the width shifting member 24.

The above-mentioned fixing screws 8, 9, 13, 1
Instead of 4, 15, 33, for example, fixing members such as screws, bolts, and pins may be used.

[Brief description of the drawings]

FIG. 1 is a rear view showing an attached state of a fabric folding guide.

FIG. 2 is a plan view showing an attached state of a fabric folding guide.

FIG. 3 is a side view showing a state in which the fabric folding guide is viewed from the front end side.

FIG. 4 is a vertical sectional side view showing the internal structure of the cloth deployment unit.

FIG. 5 is a vertical sectional side view showing the internal structure of the fabric folding section.

FIG. 6 is a front view showing a state where the guide main body is separated.

FIG. 7 is an essential part front view showing an operation of covering the fabric in a four-fold state.

FIG. 8 is an essential part front view showing an operation of covering the fabric in a three-fold state.

FIG. 9 is an essential part front view showing the operation of covering the fabric in a folded state.

FIG. 10 is an essential part cross-sectional view showing an example in which the cloth is covered in a four-fold state.

FIG. 11 is an essential part cross-sectional view showing an example in which a fabric is covered in a three-fold state.

FIG. 12 is an essential part cross-sectional view showing an example in which the fabric is covered in a folded state.

[Explanation of symbols]

 A: Fabric body B: Fabric Aa, Ba ... Edge C: Sewing machine D: Sewing position 1: ... Fabric folding guide 2: Support shaft 3: Mounting plate 4: Guide body 19: Fabric unfolding part 20: Fabric folding part 23: Tube Flat path 23a Guide hole 24 Width-adjusting member 24b Projection 31 Folding passage 31a Main passage 31b Side passage 31c Guide hole 32 Folding member 35 Regulatory member 35b Projection

Claims (6)

[Claims] 1. A fabric folding guide for a sewing machine, which guides a band-shaped fabric into a state in which an edge of a fabric body is covered during sewing by a sewing machine, and guides the fabric in a width direction. A fabric folding guide for a sewing machine, comprising a fabric folding portion and a folding preventing means for preventing one side edge or both side edges of the fabric from being folded in the width direction at the fabric folding portion. 2. A fabric developing section, which is provided at an end of the fabric folding section and which unfolds and supplies the fabric in the width direction with respect to the fabric folding section, and the fabric folding section and / or the fabric developing section. 2. A fabric folding guide for a sewing machine according to claim 1, further comprising a folding width varying means for varying a folding width of the fabric. 3. A folding member is provided with a regulating member facing the edge of the fabric supplied to the fabric folding portion, and the regulating member is brought into contact with the edge of the fabric and the regulating member contacts the edge of the fabric. 2. The fabric folding guide according to claim 1, wherein the guide is movably provided at a position where contact is avoided. 4. A fold width varying means is provided with a width shifting member facing an edge of the fabric supplied to the fabric spreading section, and the width shifting member is brought into contact with the edge of the fabric. The fabric folding guide for a sewing machine according to claim 2, wherein the guide is movably provided at a position where the contact and the contact are avoided. 5. A fabric folding guide for a sewing machine according to claim 1, wherein the fabric folding portion is provided so as to be movable in a horizontal direction and / or a vertical direction. 6. A fabric folding guide for a sewing machine according to claim 1, wherein said fabric folding portion is provided so as to be rotatable in vertical and / or horizontal directions.