JPH0638867U - Sewing machine presser foot - Google Patents

Abstract

(57) [Abstract] [Purpose] To replace the rubber cord in the narrow bag-shaped part when forming the annular narrow bag-shaped part for loading the rubber cord on the edge of the cloth sewn in a tubular shape. Make sure that the size of the opening is always the same and that the sewing work is easy. [Structure] A mounting plate 20 is attached to one side of the presser foot 12 of the presser foot 10 of the sewing machine, and the mounting plate 20 is attached to the lower end of the front side of the mounting plate in the cloth feed direction so as to be orthogonal to the cloth feed direction. A cloth feed restricting piece (22) is integrally provided so as to be parallel to the tip side of the cloth pressing portion and spaced from the bottom surface of the cloth pressing portion. The cloth feed restricting piece is inserted between the folded cloth 1 and the cloth piece, and the folded portion is sewn.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is an opening for replacing a rubber cord when sewing clothes with a rubber cord attached to a tubular edge portion such as a cuff, a hem and a waist of pants, with a sewing machine. Concerning a presser foot that is convenient for forming.

[0002]

[Prior art]

 For clothing such as nightwear in which elastic cords are inserted into the tubular edges such as cuffs, hem openings, and waists of pants, an annular narrow bag in which the elastic cords are inserted is usually used. An opening for replacing the rubber cord is provided in the shaped portion. This opening uses a two-needle lockstitch sewing machine, etc., folds the edge of the tubular cloth, and folds the overlapped portion with two parallel seams along the edge of the cloth. By forming a small distance between the sewing start position and the sewing end position when forming an annular narrow bag-shaped part for inserting a rubber cord sandwiched by two seams. To be done. That is, when the folded portion of the tubular cloth edge is sewn along the edge of the cloth, the sewn portion is left for a short distance without forming a continuous seam in an annular shape, and the folded cloth piece is sewn. An opening for replacing the rubber cord is formed from the side of the edge into the annular narrow bag-shaped portion.

[0003]

[Problems to be solved by the device]

 By the way, in the case of forming an annular narrow bag-shaped part for rubber band insertion at the tubular edge of the sewn product, in order to leave an opening for rubber band replacement, to leave unsewn a short distance, Conventionally, sewing is performed while feeding the cloth, and when the cloth sewing start position approaches the sewing position (needle position), the sewing manufacturer visually confirms the cloth sewing start position, and the sewing start position The sewing machine is supposed to finish the sewing when it comes to the front side in the cloth feeding direction by a predetermined distance from the sewing position. However, if the cloth to be sewn is a thick flexible material such as pile fabric or velvet or a raised material, it is difficult to see the seams and it is extremely difficult to check the starting position of the cloth while sewing. is there. For this reason, there has been a problem in that the sizes of the openings for replacing the rubber cord are not uniform, and re-sewing often occurs.

The present invention has been made in view of the above circumstances, and it is easy and constant to perform a sewing operation without the difficult work of a sewing manufacturer visually checking the seams. A technical problem is to provide a presser foot for a sewing machine that can form an opening for replacing a rubber string of a size.

[0005]

[Means for Solving the Problems]

 In this invention, the presser foot of the sewing machine is improved, and a mounting plate part attached to one side surface of the cloth pressing part so as to project to the front side in the cloth feeding direction along the side surface, and this mounting plate part. Of the upper part of the front side of the cloth feed direction, which is parallel to the tip side of the cloth presser part and is orthogonal to the cloth feed direction, and is projected integrally with the bottom surface of the cloth presser part. An auxiliary part consisting of a piece and is added. In this case, it is advisable to attach the mounting plate to the cloth retainer along the side surface of the cloth so as to be movable and adjustable in the cloth feeding direction.

[0006]

[Action]

 Using a presser foot with the above-mentioned configuration attached to the sewing machine arm, for example, using a two-needle lockstitch machine, fold back the fabric edge sewn in a tubular shape, and fold the folded portion into two folded sheets. When the cloth feed restricting piece of the presser foot is sandwiched by the cloth piece part of the presser foot, it is sent to the lower position of the cloth presser part, and when the main stitches are sewn in parallel to each other along the edge of the cloth, it is sewn in an annular shape. When the sewing start position comes close to the sewing position again, the cloth joining point at the sewing start position comes into contact with and engages with the front end side of the cloth feed regulating piece, so that the cloth cannot be fed further forward. Sewing will not proceed. As a result, between the start position and the end position of sewing, there is an unsewn portion of a certain size corresponding to the distance between the front edge of the presser foot cloth feed restricting piece and the vertical movement position of the sewing machine needle. An opening for replacing the rubber cord, which is always a constant size, is formed, which leads to the annular narrow bag-shaped portion for charging the rubber cord. When the mounting plate is attached to the cloth retainer along the side surface of the cloth so that it can be adjusted in the cloth feed direction, the mounting plate, and therefore the cloth feed restricting piece, must be moved back and forth in the cloth feed direction. Thus, the size of the opening for replacing the rubber cord can be adjusted appropriately.

[0007]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a presser foot of a sewing machine showing one embodiment of the present invention. The presser foot 10 has two needle holes 14 formed in the cloth presser portion 12 in parallel with each other. Then, the auxiliary component 18 is attached to the fixing plate 16 fixed to one side surface side of the cloth pressing portion 12. The auxiliary component 18 includes a mounting plate portion 20 that is locked to the fixing plate 16 so as to project to the front side in the cloth feeding direction along one side surface of the cloth pressing portion 12, and the cloth feeding portion of the mounting plate portion 20. At the lower part of the front end in the direction, a cloth feed restricting piece 22 is provided which is provided so as to be orthogonal to the cloth feeding direction and is parallel to the tip side of the cloth pressing portion 12, and these are integrally formed. The cloth feed restricting piece 22 is formed in a thin thin plate shape that is substantially flush with the bottom surface of the cloth pressing portion 12, and between the cloth feed restricting piece 22 and the bottom surface of the cloth pressing portion 12 is sewn. An interval 24 is provided for passing the cloth piece portion of the cloth from the upper surface side of the cloth feed restricting piece 22 to the bottom surface side of the cloth pressing portion 12.

Further, a long groove 26 is formed in the mounting plate portion 20 of the auxiliary component 18 along the longitudinal direction thereof, and the screw shaft portions of the pair of fixing screws 28, 28 are connected to the long groove 26 of the mounting plate portion 20. Each of the fixing screws 28, and the tip of the screw shaft portion of each fixing screw 28 is screwed into each screw hole (not shown) screwed into the fixing plate 16, and the head of each fixing screw 28 and the fixing plate 16 are screwed. By sandwiching the mounting plate portion 20 with and, the auxiliary component 18 can be attached to the cloth pressing portion 12. Then, with the fixing screw 28 loosened, the mounting plate portion 20 is moved back and forth along the fixing plate 16, and the fixing screw 28 is tightened at an appropriate position, whereby the cloth feed regulating piece 22 for the cloth pressing portion 12 is It is structured so that the position of can be adjusted.

Next, the presser foot 10 configured as described above is attached to the arm of a two-needle lockstitch sewing machine, and the sewing machine is used to insert a rubber cord into the edge of the cloth sewn in a tubular shape. The operation of forming the annular narrow bag-shaped portion for use in the following will be described with reference to FIGS. 2 and 3.

First, the edge portion of the cloth 1 sewn into a tubular shape is folded back inward (Note that FIG. 2 is a diagram showing the edge portion of the cloth 1 in a developed manner. In FIG. 2, the edge portion of the cloth 1 is shown. Is drawn so as to be folded back to the upper side) so that the cloth feed restricting piece 22 of the presser foot 10 is inserted between the folded strip-shaped cloth piece portion 2 and the base portion of the cloth 1. The front side of the folded-over portion of is laid below the presser foot portion 12, and the folded-over portion of the cloth 1 is pressed by the presser foot portion 12.

When the above preparation is completed, the sewing machine is driven to sequentially feed the folded portion of the cloth 1 to the position below the cloth pressing portion 12, and the folded portion of the cloth 1 is edged by two sewing machine needles 3. Sew along. As a result, in the folded portion of the edge portion of the cloth 1, an annular narrow bag-like portion 5 for rubber band insertion is formed, which is sandwiched by two parallel seams 4 and 4 along the edge portion. To go. Then, the folded portion of the cloth 1 is sewn in an annular shape, and the sewing start position S approaches again to the sewing position where the sewing machine needle 3 moves up and down through the needle hole 14, and finally the perspective view is shown in FIG. As shown in the longitudinal sectional views in FIG. 3, the cloth joining portion at the sewing start position S comes into contact with and engages with the front end side of the cloth feed restricting piece 22. In this case, the cloth 1 cannot be fed further forward, and the sewing operation is finished at this point. As a result, between the sewing start position S and the sewing end position E, a constant dimension corresponding to the distance L between the front end side of the cloth feed regulation piece 22 of the presser foot 10 and the vertical movement position of the sewing machine needle 3 is obtained. The unsewn part is formed, and the rubber string is replaced between the strip-shaped cloth piece part 2 and the base part of the cloth 1 in the unsewn part, which leads into the annular narrow bag-shaped part 5 for rubber band insertion. The opening 6 is formed. Reference numeral 7 in FIG. 2 denotes an overedging provided on the edge of the cloth 1 in advance.

To change the size of the opening 6 for replacing the rubber cord in the presser foot 10, loosen the fixing screw 28 and then move the mounting plate portion 20 back and forth along the fixing plate 16 in that state. Then, after setting the distance L between the front end side of the cloth feed regulation piece 22 and the vertical movement position of the sewing machine needle 3 to a desired value, the fixing screw 28 may be tightened.

The above description is for the presser foot used in the two-needle lockstitch sewing machine, but the present invention can also be applied to the presser foot used in the one-needle lockstitch sewing machine. . That is, for example, a three-winding wrapper device is attached to the upper surface of the sewing machine bed of a single-needle lockstitch sewing machine, and the three-winding wrapper device is used to triple-fold the edge portion of the cloth while pressing the folded portion. The presser foot used for forming an annular narrow bag-like part for rubber band insertion by sending it to the lower position of the gold and sewing the part where the cloth is folded in three with a sewing machine needle. It is also possible to apply this device to.

[0015]

[Effect of device]

 Since the present invention is constructed and operates as described above, the presser foot according to the present invention is used, and an annular narrow bag-like portion for inserting a rubber cord is attached to the edge portion of the cloth sewn in a tubular shape. When the ridge is formed, the size of the opening for replacing the rubber cord can be always made constant, and the sewing work for that purpose is simple and does not require special skill.

[Brief description of drawings]

FIG. 1 is a perspective view of a presser foot of a sewing machine showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the presser foot is used to form an annular narrow bag-shaped portion for inserting a rubber cord on an edge portion of a cloth sewn in a tubular shape, It is the figure which expanded and represented the edge part.

FIG. 3 is likewise a vertical sectional view.

[Explanation of symbols]

 10 Presser foot 12 Cloth presser section 14 Needle hole 16 Fixing plate 18 Auxiliary component 20 Mounting plate section 22 Cloth feed regulating piece 26 Long groove 28 Fixing screw

Claims (2)

[Scope of utility model registration request] 1. A mounting plate portion is attached to one side surface of the cloth pressing portion so as to project toward the front side in the cloth feeding direction along the side surface, and the front end of the mounting plate portion in the cloth feeding direction is located on the front side. A presser foot for a sewing machine characterized in that a cloth feed restricting piece is integrally provided on the lower portion so as to be orthogonal to the cloth feed direction, parallel to the leading edge of the cloth presser section, and spaced from the bottom surface of the cloth presser section. . 2. The mounting plate portion is attached to the cloth retainer portion along the side surface thereof so as to be movable and adjustable in the cloth feed direction.
The presser foot of the sewing machine shown.