JPH0681477U - Overlock sewing machine tape guide device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is capable of properly feeding a tape fed from a supply source to a sutured portion, and an operation that does not interfere with work at the sutured portion such as needle replacement. An object of the present invention is to provide a tape guide device having excellent properties. A tape guide device for an overlock sewing machine according to the present invention is connected to a side surface of a side cover M1 that covers the head of the overlock sewing machine so as to be vertically rotatable and has a predetermined raised position and a lowered position. And a guide member 13 that is held at one end of the rotating arm and that rotates together with the rotating arm. Two plate members 14 and 15 axially attached to each other are formed so as to be bendable and extendable, and tape insertion portions 14A and 15A for inserting a tape supplied from a tape supply source are formed at the other end of each plate member. It has been done.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tape guide device which guides a tape to be sewn to an edge portion of cloth to a stitched portion of an overlock sewing machine.

[0002]

[Prior art]

 Generally, in a conventional overlock sewing machine, as shown in FIG. 3, a face plate cover 2 is pivotally mounted on a front surface of a side cover 1 that covers the head of the sewing machine body so as to be vertically rotatable by a fulcrum shaft 3. Further, a tape guide member 4 for guiding a tape fed from a tape supply source (not shown) is fixed to the face plate cover 2. The tape guide member 4 is formed by bending both upper and lower ends of a single plate-like member and inserting the tape T into the bent portions (hereinafter, referred to as tape insertion portions) 4A and 4B. The holes 4a and 4b are formed (see FIG. 4).

When performing a sewing operation, as shown by the solid line in FIG. 3, the face plate cover 2 is lowered to cover the sutured portion so as to ensure work safety. That is, when the face plate cover 2 is lowered, it is possible that the broken sewing needle may be scattered to the operator side when a needle break occurs, or the hand may be accidentally pushed out to the sewing portion during sewing. You can prevent it.

Further, when the face plate cover 2 is lowered, one tape insertion portion 4A of the tape guide member 4 is located above the side cover 1, and the other tape insertion portion 4B is a sewing cloth provided on the sewing machine bed. It is located near the surface of the table 5. Then, the tape T fed out from the tape supply source is fed to the sutured portion through the tape insertion holes 4a and 4b. For this reason, the tape T is pushed and spread by the both tape insertion holes 4a and 4b into a flat state, and is held at two places to prevent kinking and the like, and is fed to the suture portion in an appropriate state. It Further, when performing threading, needle replacement, etc., the face plate cover 2 and the tape guide member 4 are rotated upward as shown by the alternate long and short dash line in FIG. 3 to expose the sewing section of the sewing machine. Done in. NR is a needle bar, N is a sewing needle, and 6 is a presser foot.

[0005]

[Problems to be solved by the device]

 As described above, in the conventional overlock sewing machine, since the face plate cover 2 and the tape guide member 4 are integrally fixed, it is possible to move both members 2 and 4 in one operation. On the other hand, on the other hand, when the face plate cover 2 is rotated upward, the tape insertion portion 4A of the tape guide member 4 abuts on the upper surface of the side face cover 1 and the face plate cover 2 and the tape guide member 4 are provided. Since the rotation of the suture was restricted, the suture could not be fully exposed. Therefore, the conventional overlock machine has a problem in that it is difficult for the operator to insert his / her hand into the suture portion during the work such as needle replacement, and the work cannot be performed smoothly.

The present invention has been made in view of the above-mentioned problems of the prior art. The tape fed from the supply source can be properly fed to the suture portion, and the suture portion such as needle exchange can be performed. It is an object of the present invention to provide a tape guide device having excellent operability that does not hinder the work in the.

[0007]

[Means for Solving the Problems]

 A tape guide device for an overlock sewing machine according to the present invention is connected to a side surface of a main body portion of the overlock sewing machine so as to be vertically rotatable, and is rotatable so as to be set in a predetermined ascending position and a descending position. An arm and a guide member that is held at one end of the rotating arm and that rotates together with the rotating arm are provided. The guide members are two plate members whose one ends are axially attached to each other. The tape insertion part is formed at the other end of each plate so that the tape supplied from the tape supply source is inserted.

[0008]

[Action]

 In this invention, at the time of sewing operation, the two plate bodies constituting the guide member are vertically extended, and the tape insertion portions formed on the two plates are respectively placed at two positions above and below each other with a predetermined space therebetween. The tape fed from the tape supply source by the section is fed to the suture section. When performing needle replacement or the like, the upper plate of the guide member is rotated downward to make the guide member bent, and then the rotating arm is rotated to the raised position. As a result, the guide member is held above without contacting the upper surface of the main body, and the sutured portion can be completely exposed.

[0009]

【Example】

 An embodiment of this invention will be described with reference to FIGS. In the figure, M1 is a side cover that covers the head of the sewing machine main body, and M2 is a sewing machine bed having a cloth table M3 on the upper surface. A needle bar NR is housed inside the side cover M1, and a sewing needle N fixed to the lower end thereof penetrates a needle plate M5 mounted on the sewing machine bed M2. In addition, M4 is a cloth pressing member for pressing the vicinity of the needle drop position of the cloth.

Reference numeral 10 denotes a rotating arm having one end attached to the side surface of the side cover M1 by a shaft 11, which is rotatable about the shaft 11 in the vertical direction. The range is from a lower position (shown by the solid line in FIG. 2) where the other end 10a of the rotating arm 10 abuts on the front surface M1a of the side cover M1 to an upper position (a figure where it contacts the upper surface M1b of the side cover M1). 2) (shown by the alternate long and short dash line). The reference numeral 10a1 is a protrusion provided on the other end 10a of the rotating arm 10 so as to come into contact with the front surface M1a of the side cover M1 when the rotating arm 10 descends. Reference numeral 12 is a plate-shaped eye protection cover whose upper side is fixed to the other end of the rotating arm 10. The eye protection cover 12 is interposed between the vicinity of the ascending / descending path of the sewing needle (sewn portion) and the operator side when the rotating arm 10 is in the lowered position. In this embodiment, the eye protection cover 12 is made of a transparent material such as plastic.

Reference numeral 13 is a guide member attached to the other end of the rotating arm 10 via the eye protection cover 12. The guide member 13 has an upper end portion of a lower guide plate 14 (plate body) and a lower end portion of an upper guide plate (plate body) 15 rotatably connected to each other by a shaft 16. As a whole, the shaft 16 can be bent and extended around the shaft 16. Then, tape insertion portions 14A and 15A having tape insertion holes 14a and 15a are formed at the lower end of the lower guide plate 14 and the upper end of the upper guide plate 15, respectively. A mounting portion 14B is formed at the upper end of the lower guide plate 14 by bending, and the mounting portion 14B is fixed to the front surface of the upper end portion of the eye protection cover 12 by a screw 17. The insertion hole 14B1 of the screw 17 formed in the mounting portion 14B is a long hole extending in the left-right direction, and the mounting position of the lower guide plate 14 can be adjusted within the range of this long hole. Has become.

In the tape guide device configured as described above, during the sewing operation, the rotating arm 10 is held at the lowered position shown by the solid line in FIG. 2, while the upper guide plate 15 of the guide member 13 is rotated by the shaft 16 Rotate upward around the center to hold it. When the rotating arm 10 descends, the eye protection cover 12 covers the front part of the vicinity of the ascending / descending path (sewn part) of the sutured part, which causes broken needles to scatter to the operator side or the sewing side. It is possible to prevent hands from being accidentally put out at the joint. In this state, the tape insertion portion 15A of the upper guide plate 1 is held above the side surface cover M1, and the tape insertion portion 14A of the lower guide plate 15 is held near the cloth table M3. Since the tape fed out from the tape supply source (not shown) is sequentially guided by the tape insertion portions 15A and 14A arranged at the two upper and lower positions, the suture portion is not bent or twisted in an appropriate state. Be sent to.

In addition, when performing threading work on a sewing needle or needle replacement work, first, the upper guide plate 15 is rotated about the shaft 16 to a position where it overlaps with the lower guide plate 14, The guide member 13 is bent as a whole. Next, the pivot arm 10 is pivoted upward about the shaft 11, and the eye protection cover 12 and the guide member 13 are also moved upward. At this time, since the guide member 13 is in the bent state as described above, it does not interfere with the side cover M1 and the like, and does not hinder the rotation of the rotating arm 10. That is, the rotating arm 10 can be reliably rotated to the raised position. Then, in the raised position, the eye protection cover 12 and the guide member 13 are also held above the side cover M1 as shown by the alternate long and short dash line in FIG. 2, and the stitched portion is completely exposed. For this reason, the operator can easily insert his / her hand into the sutured portion and can smoothly perform work such as needle replacement.

Although the guide member 13 is attached to the rotating arm 10 via the eye protection cover 12 in the above embodiment, the guide member 13 may be directly attached to the rotating arm 10. Well, this invention is not particularly limited to the above embodiment.

[0015]

[Effect of device]

 As described above, the tape guide device for an overlock sewing machine according to the present invention has a guide member configured to be bendable and extendable by two plate bodies having one end pivotally mounted, and an overlock sewing machine via a rotating arm. During the sewing operation, the guide member is extended so that the tape can be inserted into the tape insertion portion formed at the other end of each plate body so that it can be attached to the side surface of the main body of the plate so as to be vertically rotatable. The tape fed out from the tape supply source can be properly fed to the sutured portion while being guided at two points, and the plate bodies should be overlapped with each other when replacing the sewing needle. By bending the guide member together with the rotating arm, the guide member can be completely retracted from the vicinity of the stitched portion, so that the operator can easily insert his / her hand into the stitched portion. Can be, can be carried out smoothly the work.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an explanatory side view showing the operation of what is shown in FIG.

FIG. 3 is a schematic side view showing a conventional overlock sewing machine, a tape guide member, and the like.

4 is a perspective view showing the tape guide member shown in FIG. 3. FIG.

[Explanation of symbols]

 10 Rotating Arm 13 Guide Member 14 Lower Guide Plate (Plate) 14A Tape Insertion Part 15 Upper Guide Plate (Plate) 15A Tape Insertion Part M1 Side Cover T Tape

Claims (1)

[Scope of utility model registration request] 1. The two are arranged above and below with a predetermined interval.
A tape guide device having individual tape insertion portions, and by guiding the tapes supplied from the tape supply source through the both tape insertion portions, the tape from the tape supply source to the suture portion of the overlock sewing machine is guided. A rotating arm which is connected to the side surface of the main body of the overlock sewing machine so as to be rotatable in the vertical direction and which can be set in a predetermined raised position and lowered position; and one end portion of the rotating arm. And a guide member having the tape insertion portion, and the guide member is configured to be bendable and extendable by two plate members having one end portions axially attached to each other, and each plate member. A tape guide device for an overlock sewing machine, characterized in that a tape insertion part is formed at the other end of the tape.