JPH0323171Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a cloth guide tool that guides cloth bent into a predetermined shape to a sewing section of a sewing machine.

[Conventional technology]

When sewing cloth folded into an S-shape, such as the hem of underwear, it requires considerable skill to guide the cloth by hand, and the work efficiency is low. For this reason, conventionally, in such sewing work, a cloth guide tool has been used to guide the cloth in a folded state to the sewing machine sewing section.

At present, a commonly used cloth guide of this type is shown in FIG. 7.

That is, this cloth guide includes a bent plate A bent in a U-shape, and has an upper plate part A1 and a lower plate part A.
2, the upper bent part W of the cloth W bent into an S-shape
1 is held between them, and the lower bent portion W2 is brought into contact with and guided by the tip of the lower plate portion.

In addition, this cloth guide is detachably attached to a support stand that supports it, and various types with different distances between the upper plate part A1 and the lower plate part A2 are prepared, and the thickness of the cloth to be sewn can be adjusted. Appropriate cloth guides are attached depending on the situation.

Further, as shown in FIG. 8, a flat plate-shaped middle blade D is detachably attached between the upper plate part A1 and the lower plate part A2 via a spacer B with a screw E, and this middle blade D and the lower plate part There is also one in which the upper bent portion W1 of the cloth W is sandwiched between the cloth W and A2. In this case, by attaching spacers B of different thicknesses, it is possible to accommodate various fabric thicknesses.

[Problem that the invention attempts to solve]

However, with any of the fabric guides mentioned above, the work efficiency is low because the bending plate A or the spacer B must be replaced every time the fabric thickness is changed. There was a problem in that many types of bending plates A or spacers B had to be prepared, resulting in high costs.

This invention was made with attention to the above-mentioned problems, and the purpose is to provide a fabric guide tool that is inexpensive and has high work efficiency, and can appropriately accommodate various fabric thicknesses without changing any of its components. do.

[Means for solving problems]

This invention provides a positioning member movable along the upper plate part and lower plate part of the bending plate, and rotatably supports a long screw that is locked in a long hole in the upper plate part on the positioning member. The inner blade is loosely fitted into the support member screwed onto the long screw, and the inner blade is moved up and down together with the support member.

[Effect]

In this invention, the distance between the middle blade that holds the upper bent portion of the cloth and the lower plate portion can be adjusted by rotating the long screw.

[Example of idea]

Embodiments of this invention will be described below with reference to FIGS. 1 to 6.

1 to 3 are diagrams showing a first embodiment of this invention.

In the figure, reference numeral 1 denotes a guide member bent into a U-shape, with an upper plate part 1b and a lower plate part 1a facing each other with a predetermined gap in between. Support member 2 fixed on the cloth mounting table
It is rotatably supported by a shaft 3 in the upper part.
4 is a positioning member having an H-shaped cross section, and its both sides 4
The upper and lower end portions of a and 4b are engaged with both side end portions of the upper plate portion 1b and the lower plate portion 1a so as to be movable in the left-right direction. Reference numeral 5 denotes a long screw loosely inserted into a long hole 1c extending in the left-right direction of the upper plate portion 1b, and a shaft portion 5c is formed below the screw portion 5b, which is rotated by the positioning member 4. It is inserted so as to be movable and is prevented from being removed from the positioning member 4 by the locking pin 6. Further, a rotary operation knob 5a is fixed to the tip of the threaded portion 5b of the long screw 5. A lock nut 7 is screwed onto the threaded portion 5b of the long screw 5, and is located above the upper plate portion 1b. Reference numeral 8 denotes a rectangular support plate screwed onto the screw portion 5b, and its both side edges abut against both sides 4a, 4b of the positioning member 4. Reference numeral 9 denotes a long inner blade formed with a long hole 9a through which the long screw 5 is inserted, and is engaged with the support body 8 so as to be movable in the left-right direction. Also, this middle feather 9
There is a bent part 9 vertically bent upward at the right end part of the
b is inserted into a locking hole 1d formed in the upper plate portion 1b, and movement in the left and right direction is restricted.

When using the cloth guide with the above configuration,
The operator first rotates the lock nut 7 upward to separate it from the upper plate portion 1b, thereby making the positioning member 4 movable. Next, the long screw 5 is rotated using the rotary operation knob 5a to move the middle blade 9 in the vertical direction together with the support plate 2, and the middle blade 9 and the lower plate part 1a are moved together.
The distance between the two is set to an appropriate distance for the thickness of the cloth W to be sewn. After that, the bending width of the cloth W (the distance between the outer surface of the upper bent portion W1 and the inner surface of the lower bent portion W2) and the distance from the right end of the lower plate portion 1a to the right end of the positioning member 4 match. Move the positioning member 4 to the location and rotate the lock nut 7.
The positioning member 4 is lowered and pressed against the upper plate portion 1b to fix the position of the positioning member 4.

Here, the worker bends the cloth W to the required bending width, and folds the upper bent part W1 between the middle blade 9 and the lower plate part 1a.
and the outer surface thereof is brought into contact with the right end portion of the positioning member 4, and the inner surface of the lower bent portion W2 is brought into contact with the end portion of the lower plate portion 1a. This results in
The vertical movement of the cloth W is regulated by the inner blade 9 and the lower plate portion 1a, and the horizontal movement is regulated by the positioning member 4, so that the cloth can be sent out in an appropriately folded state.

In addition, when sewing fabrics of different thicknesses, after rotating and raising the lock nut 7, the rotation operation knob 5a is rotated to raise or lower the inner blade 9, and the inner blade 9 and the lower plate part 1a are sewn together. After setting the distance between the lock nuts 7 and 7 to an appropriate distance for the fabric thickness,
All you have to do is rotate and lower it to fix it.

Furthermore, when the folding width of the cloth W is changed,
After the lock nut 7 is rotated and raised to move the positioning member 4 to the proper position, the lock nut 7 is rotated and lowered to be fixed.

Next, a second embodiment of this invention will be explained based on FIGS. 4 to 7. In addition, in each figure, the first
The same reference numerals are given to the same or corresponding parts as in the embodiment, and detailed explanation thereof will be omitted.

In this second embodiment, in the first embodiment,
While the lock nut 7 was used to stop the rotation of the long screw 5 and fix the positioning member, the lock nut 7 is not used to stop the rotation and fix the positioning member with the following configuration.

That is, 10 is a hexagonal part integrally formed below the rotation operation knob 5a, and 11 is a bifurcated part 1 that engages with two opposing sides of this hexagonal part 10.
1a, the lower end of which is screwed below the positioning member 4. 12
are the bottom surface portion 4c and the lower plate portion 1a of the positioning member 4.
It is a curved plate-shaped leaf spring interposed between and fixed to the bottom surface part 4c by a locking pin 7.

This second embodiment is constructed as described above, and the bifurcated portion 11a of the elastic member 11 is always engaged with the two surfaces of the hexagonal portion 10, and the rotation of the rotation operation knob 5a, that is, the rotation of the long screw 5 is performed. Rotation is prevented.

When adjusting the middle blade 9, press the bifurcated portion 11a in the direction of the arrow shown in FIG. 6 to release the engagement with the hexagonal portion 10, and while maintaining this state, rotate the rotary operation knob 5a. Let's do it. After adjustment, by releasing the pressing force on the bifurcated portion 11a, the bifurcated portion 11a returns to its original position and engages with the hexagonal portion 10.

On the other hand, since the positioning member 4 has increased frictional force with the bottom surface portion 4c by the leaf spring 12,
This makes it possible to prevent inadvertent positional displacement due to vibrations, etc. Note that during adjustment, it is moved by pressing with a force greater than the frictional force.

[Effect of idea]

As explained above, according to this invention, it is possible to easily adapt to various cloth thicknesses without replacing any constituent members, and there is an effect that productivity can be greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the first embodiment of this invention, FIG. 2 is a sectional view taken along line II-II of the device shown in FIG. 1, and FIG. III
4 is a plan view showing a second embodiment of the invention, and FIG. 5 is a cross-sectional view of the second embodiment of the invention.
FIG. 6 is a cross-sectional view taken along the line 4, and FIG. 7 is a side view showing a conventional cloth guide. FIG. 8 is a side view of another conventional cloth guide. DESCRIPTION OF SYMBOLS 1...Bending plate, 1a...Lower plate part, 1b...Upper plate part, 1c...Long hole, 4...Positioning member, 5...
Long screw, 8...Support member, 9...Inner blade.

Claims (1)

[Claims for Utility Model Registration] A bending plate comprising an upper plate part and a lower plate part facing each other vertically with a predetermined interval therebetween; a positioning member movable along the upper plate part and the lower plate part; , a long screw rotatably supported by the positioning member and inserted into a long hole formed in the longitudinal direction of the upper plate; and a long screw that is threadedly engaged with the long screw and moves in the vertical direction along the positioning member. and a middle blade that is loosely fitted into the support member and is movable up and down together with the support member, and that allows the support member to move in the longitudinal direction of the bending plate. Cloth guide.