JP5205175B2 - Embroidery sewing machine presser foot - Google Patents

Description

  The present invention relates to an embroidery sewing machine in which a string-like embroidery material such as a tape or a cord is supplied in a staggered manner to the left and right in the sewing advance direction with respect to a needle base position and sewn onto a sewing object such as a cloth. The present invention relates to a structure of a presser foot that moves up and down in conjunction with the up and down motion and presses a workpiece to be sewn.

Conventionally, as shown in Patent Documents 1 and 2, so-called zigzag stitching is possible, in which string-like embroidery materials such as tapes and cords are supplied in a zigzag manner with respect to the needle base and can be sewn to a sewing object such as fabric. An embroidery sewing machine having a simple sewing head is known. The sewing head disclosed in Patent Documents 1 and 2 includes a needle bar having a sewing needle attached to the lower end thereof and driven up and down, a presser foot that moves up and down in conjunction with the vertical movement of the needle bar, and a needle It is assembled to the outer periphery of the bar concentrically with the needle bar, and it is attached to a rotating body that can freely rotate around its axis, and is swingably attached to this rotating body by a lever pin. And a guide lever for guiding the embroidery material.
Japanese Unexamined Patent Publication No. 08-299639 JP 2007-000501 A

  In an embroidery sewing machine having such a sewing head, the sewing advance direction for the workpiece is calculated based on predetermined sewing data, and the lever pin is always positioned in front of the sewing advance direction according to the sewing advance direction. The sewing operation is performed while the direction of the rotating body is controlled. At that time, by swinging the guide lever back and forth around the lever pin, the embroidery material is fed in a predetermined pattern with respect to the needle base of the sewing needle in a staggered direction to the left and right with respect to the sewing advance direction. The embroidery material is sewn on the sewing product by driving up and down and performing main sewing.

  By the way, in the conventional embroidery sewing machine, the presser foot that constitutes a part of the sewing head has a presser foot portion that presses the work to be sewn at the lower end thereof, and when the embroidery material is sewn on the work to be sewn. In this fabric presser, the work to be sewn around the needle drop position is pressed down. A through hole or a recess allowing the sewing needle to pass therethrough is formed in the presser foot, and the tip of the presser foot is formed longer than the needle drop position. In other words, the through hole is arranged or the recess is formed deeply so that the needle drop position is located on the back side with respect to the distal end side of the presser foot. In the sewing head disclosed in Patent Document 1, the presser body is provided on the same side as the guide lever, and in the sewing head disclosed in Patent Document 2, the presser body is provided on the side facing the guide lever. It is. The presser foot is rotated together with the guide lever based on the direction control of the rotating body.

  Here, FIG. 7 shows a schematic plan view showing a state in which the guide lever swings to the left in the sewing advance direction when staggered stitching is performed in the conventional embroidery sewing machine. In FIG. 7, G is a guide lever, T is a string-like embroidery material, P is a needle drop position (stitch position) of a sewing needle, and Pa is a previous stitch position. As is apparent from this figure, the tip of the guide lever G guiding the embroidery material T is at the position indicated by the solid line (the position far from the needle drop position P), and the imaginary line (two-dot chain line). In the case where the position is closer to the needle drop position P than the position indicated by the solid line, the case where the position is indicated by the imaginary line is closer to the previous stitch position Pa and is the position indicated by the solid line. The swing angle of the embroidery material T around the previous stitch position Pa is larger. That is, the swing angle of the embroidery material T is larger at the tip portion of the guide lever G closer to the needle drop position P, which can reliably prevent contact between the embroidery material T and the sewing needle. Staggered stitching can be performed stably.

  However, in the sewing machine head disclosed in Patent Document 1, since the cloth presser body is provided on the same side as the guide lever, when the tip part of the guide lever is brought close to the needle drop position, the tip part of the guide lever is the cloth head. It can only be brought close to a position where it does not interfere with the back of the presser. On the other hand, in the sewing head disclosed in Patent Document 2, since the cloth presser body is provided so as to face the guide lever, the tip portion of the guide lever is more needle drop than the sewing head disclosed in Patent Document 1. The tip of the presser foot of the presser foot is longer than the needle drop position, as described above, but the guide lever's front end does not interfere with the end of the presser foot. It can only approach. Thus, in the past, when trying to bring the tip of the guide lever closer to the needle drop position, the tip of the guide lever can be brought closer to a position slightly away from the needle drop position so as not to interfere with the presser foot. It was impossible to make the tip of the guide lever closer to the needle drop position.

  As described above, the presser foot of the presser foot has a through hole or a recess that allows the sewing needle to pass therethrough. The through hole or the recess has a needle thread extending from the sewing needle to the sewing product. It also serves as a guide to the vicinity of the falling position. However, as disclosed in the above-mentioned Patent Document 2, when the portion allowing the needle to penetrate is a recess, the front end portion is open, so that when the embroidery frame is moved greatly, the recess is removed from the recess. The upper thread may come off, and the upper thread extending from the sewing needle to the workpiece may be inclined. When the upper lever is tilted and the guide lever and the presser foot, which are provided facing each other, are rotationally controlled, the tilted upper thread is hooked on the guide lever and the presser foot and the thread breaks or the needle breaks. There was a bug that occurred.

The present invention has been made in view of the above points, and the tip portion of the guide lever (guide device ) is made closer to the needle drop position than in the prior art to increase the swing angle of the embroidery material, thereby further staggering the embroidery material. An object of the present invention is to provide an embroidery sewing machine that can be stably performed.
In addition, an embroidery sewing machine that can guide the upper thread to the vicinity of the needle drop position while allowing the tip of the guide lever (guide device ) to be closer to the needle drop position than before is provided. To do.

The presser foot according to the present invention is a presser foot of an embroidery sewing machine that performs zigzag stitching, and the presser foot is supported by a presser foot that is driven up and down in synchronization with the up and down drive of a needle bar to which a sewing needle is attached. The embroidery sewing machine is provided with a guide device for guiding the string-like embroidery material to the needle drop position, and a horizontal cloth presser part for pressing the sewing product, It extends upward from a portion near the end of the presser foot to a height that does not interfere with the embroidery outlet port of the guide device, forms a curved portion above it , and allows the insertion of a sewing needle inside the curved portion. it comprises a guide member for guiding the upper thread passed through to the sewing needle so as not to leave from the needle drop position, placing the front Symbol ends of the presser foot portion in close proximity to the needle location Features.

The presser foot according to the present invention is attached to the lower end of a presser foot support that is driven up and down in synchronization with the up-and-down driving of the needle bar. And a guide member that extends upward from a portion near the end of the presser portion and guides the upper thread passed through the sewing needle so as not to leave the needle drop position. Thus, extending the needle thread guide to the guide member so as not to leave from the needle drop position, upwardly from the site of the end side of the horizontal fabric presser to the embroidery material outlet height that does not interfere the guide device, a curved portion formed in said upper, by providing the upper thread passed through the sewing needle as well as permit the insertion of the needle inside the said curved portion so that to guide so as not to leave from the needle drop position, the fabric The end portion of the presser portion can be arranged close to the needle drop position. That is, it is not necessary to form so that the front-end | tip part of the cloth presser part may be extended longer than the needle drop position like the past. In this way, the end of the presser foot can be arranged close to the needle drop position, so that the tip portion (embroidery material outlet) of the guide device for guiding the embroidery material is closer to the needle drop position than in the past. It becomes possible to arrange them, and the swing angle of the embroidery material can be increased so that the staggered stitching of the embroidery material can be performed more stably. That is, since the end of the presser foot can be arranged close to the needle drop position, the leading end portion (embroidery material outlet) of the guide device is brought to the needle drop position without being interfered with the end of the presser foot. This is because they can be arranged close to each other. Moreover, extending the needle thread guide to the guide member so as not to leave from the needle drop position, upwardly from the site of the end portion side of the cloth pressing portion to a height that does not interfere with the embroidery material outlet of the guide device, curved in said upper form part, by providing a so that to permit the insertion of the needle inside the said curved portion, the tip portion (embroidery material outlet) of the guide device close to the needle drop position and the guide member and that interfere Since there is no thread, it is possible to bring the tip of the guide device that reciprocates (embroidery material outlet) closer to the needle drop position, but the upper thread so that it is not caught by the rotation-controlled guide device or the presser foot Can be reliably guided in the vicinity of the needle entry position.

According to one preferred embodiment of the present invention, the guide member is a wire-like, said at a height that does not interfere with the embroidery material outlet of the guide device, on which is passed through the sewing needle as well as permit the insertion of the needle It is formed in a shape having a semicircular part through which the thread is passed, and when the sewing needle is raised, the upper thread connected from the sewing needle to the workpiece is positioned in the semicircular part, and the upper thread is moved from the needle drop position. It is characterized by guiding so as not to leave. In this way, the tip of the guide device can be provided with a simple configuration such that the wire-like guide member extends upward from the tip of the presser foot and does not interfere with the embroidery outlet port of the guide device . The portion (embroidery material outlet) can be brought closer to the needle drop position, and the upper thread can be prevented from being caught by the rotation-controlled guide portion or the presser foot.

According to the present invention, in the presser foot having a horizontal presser foot that presses the work to be sewn, the guide member for guiding the upper thread passed through the sewing needle so as not to leave the needle drop position is provided on the presser foot. extending upwardly from the site of the end closer to the embroidery material outlet height that does not interfere the guide device, a curved portion formed in said upper, provided so that to permit the insertion of the needle inside the said curved portion As a result, the end of the presser foot can be placed close to the needle drop position, so that the tip of the guide device for guiding the embroidery material (embroidery material outlet) is located at the needle drop position compared to the prior art. It becomes possible to arrange them close to each other, the swing angle of the embroidery material guided by the guide device can be increased, and zigzag stitching can be performed more stably.
In addition, by providing a guide member that guides the upper thread so as not to leave the vicinity of the needle drop position, it is provided above the end of the presser foot so that the tip portion of the guide device is substantially at the needle drop position compared to the conventional case. It is possible to prevent the needle thread from being caught by a guide part or a presser body that is rotationally controlled by reliably guiding the upper thread to the vicinity of the needle drop position, while allowing the needle thread to be closer to the position aligned with the needle. .

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  1 and 2 show so-called zigzag stitching in which a string-like embroidery material such as a tape or a cord is supplied while being staggered to the left and right in the sewing advance direction with respect to the needle drop position, and is sewn to a workpiece such as a fabric. FIG. 1 is a front view of a sewing head H of a possible embroidery sewing machine, FIG. 2 is a partially cutaway side view thereof, and FIG. The sewing machine head H is provided with a needle bar 2 arranged so that its axial direction extends in the vertical direction (vertical direction). The needle bar 2 is driven to reciprocate in the vertical direction by the rotation of the sewing machine main shaft 1. A sewing needle 3 is attached to the lower end of the needle bar 2. A support cylinder 4 is attached to the outer periphery of the needle bar 2. The support cylinder 4 is guided by the inner peripheral surface of the fixed sleeve 5 fixed to the lower part of the sewing head H, and can move up and down relative to the needle bar 2 and rotate around the axis of the needle bar 2. ing. An engagement ring 6 is fixed to the outer periphery of the upper end portion of the support cylinder 4, and a drive arm 8 that moves up and down by driving a motor 7 is engaged with the engagement ring 6. On the other hand, a presser foot support 9 is fixed to the lower end of the support cylinder 4. The presser foot support 9 is formed in a shape with a bifurcated lower end, and a keyway 9a extending in the vertical direction in the longitudinal direction is formed on the outer surface of one leg, and the other leg A presser foot 10 is attached to the lower end.

  At the lower end of the presser foot 10, a presser foot 10 a that presses the workpiece to be sewn at the time of sewing is formed so as to protrude toward the guide lever 20, and the end of the presser foot 10 a is substantially needle-dropped. It is set to the length aligned with the position. And the recessed part 10b (penetration part) which accept | permits the insertion of the sewing needle 3 is formed in the front-end | tip part of the work clamp part 10a, and it was formed in the shape which has a semicircle part above the front-end | tip part of the work clamp part 10a. A wire-shaped yarn guide 10c (guide member) is fixed (see FIG. 4 described later in detail). The yarn guide 10c is fixed so that the semicircular portion formed is arranged at a position facing the recess 10b when viewed from above the sewing machine.

  A rotating cylinder 11 is attached to the outer periphery of the fixed sleeve 5. The rotating cylinder 11 is mounted concentrically with the needle bar 2 and can only rotate around the axis of the needle bar 2. A timing pulley portion 12 is formed on the outer periphery of the upper end portion of the rotating cylinder 11, and a timing belt 15 is suspended between the timing pulley portion 12 and a driving pulley 14 fixed to the rotating shaft 13 a of the motor 13. . As a result, when the motor 13 is driven and the drive pulley 14 rotates, the rotation is transmitted through the timing belt 15 and the timing pulley portion 12 so that the rotating cylinder 11 rotates. On the other hand, a key member 16 that is engaged with the key groove 9 a of the presser foot support 9 is fixed to the lower end of the rotary cylinder 11. Accordingly, the presser foot 10 moves up and down as the support cylinder 4 moves up and down, and rotates around the axis of the needle bar 2 as the rotary cylinder 11 rotates.

An interlocking member 17 is installed on the outer periphery of the rotating cylinder 11 so as to be movable up and down and rotatable. A connecting piece 18 is fixed to the interlocking member 17, and the connecting piece 18 is engaged with an engaging groove 11 a formed on the outer periphery of the rotating cylinder 11. As a result, the interlocking member 17 rotates integrally with the rotating cylinder 11 as the rotating cylinder 11 rotates. A guide lever 20 (guide device ) is attached to the rotary cylinder 11 via a bracket 19. The guide lever 20 is swingably attached to the left and right in the axial direction of the needle bar 2 with respect to the rotary cylinder 11 with a lever pin 21 attached to the outer surface of the bracket 19 as a fulcrum.

  The guide lever 20 includes a base member 22 having one arm portion 22a extending laterally from the position of the lever pin 21 and the other arm portion 22b extending downward, and an arm of the base member 22. The guide arm 23 is connected to the lower end of the portion 22b. A guide cylinder 24 for supplying the string-like embroidery material T to the needle drop position (needle base position) of the sewing needle 3 is attached to the lower end of the guide arm 23. The lower end of the guide tube 24 is an embroidery material outlet 24a through which the embroidery material T is derived. The arrangement position of the guide lever 20 is set so that the guide cylinder 24 faces the presser body 10. As described above, the tip of the presser foot 10a of the presser foot 10 is set to a length that is substantially aligned with the needle drop position, and the guide cylinder 24 has its embroidery outlet 24a as close to the needle drop position as possible. Close and fixed. The semicircular part formed by the thread guide 10c above the tip of the presser foot part 10a is guided by the embroidery material of the guide cylinder 24 that is reciprocally swung in the horizontal direction (horizontal direction) during zigzag stitching as will be described later. The height is set so as not to interfere with the outlet 24a (the height that does not hinder the reciprocating operation of the embroidery material outlet 24a).

  On the other hand, a roller 25 is attached to the tip of the arm portion 22 a of the base member 22, and the roller 25 is engaged with the connecting groove 18 a of the connecting piece 18. A bobbin bracket 26 is fixed to the outer periphery of the rotating cylinder 11, and a bobbin 27 around which a string-like embroidery material T is wound is rotatably supported on the bobbin bracket 26.

  As shown in FIG. 1, a guide shaft 28 is disposed at a position adjacent to the needle bar 2 so that its axial direction extends in the vertical direction (vertical direction). An elevating member 29 is attached to the guide shaft 28. The elevating member 29 is moved up and down (moved up and down) along the axial direction while being guided by the guide shaft 28 by transmitting a driving force generated by the rotation of the staggered swing motor 30 via a drive transmission mechanism (not shown). It has become. The elevating member 29 is formed with a fork portion 29 a that protrudes substantially horizontally toward the needle bar 2, and this fork portion 29 a is engaged with a groove portion 17 a formed on the outer periphery of the interlocking member 17. Therefore, the interlocking member 17 and the connecting piece 18 move up and down by the up-and-down movement of the elevating member 29, and the up-and-down movement of the connecting piece 18 is converted into the swing of the guide lever 20 through the linkage groove 18a and the roller 25. Thus, the guide cylinder 24 fixed to the lower end portion of the guide lever 20 is linearly moved left and right with respect to the sewing advance direction with the lever pin 21 as a fulcrum by the action of the swing mechanism from the staggered motor 30 to the guide arm 23. It swings back and forth.

  FIG. 1 shows a state in which the elevating member 29 is at the upper limit position and the guide lever 20 is fully swung on the left side. On the other hand, FIG. 3 is a partial view of the lower part of the sewing head H as seen from the front, and shows the state where the elevating member 29 is at the lower limit position and the guide lever 20 is swung to the right. The guide cylinder 24 of the guide lever 20 reciprocally swings left and right in synchronization with the reciprocating movement of the needle bar 2 between the position shown in FIG. 1 and the position shown in FIG. As a result, the embroidery material T coming out from the embroidery material outlet 24a provided at the tip of the guide cylinder 24 is supplied to the needle drop position while being swung in a predetermined pattern to the left and right with respect to the sewing advance direction. It can be sewn on the sewing product. In each of the above drawings, 31 is a known throat plate.

  Here, the operation of sewing the embroidery material T onto the workpiece by the main sewing in the sewing head H having the above configuration will be described. First, the bobbin 27 around which the embroidery material T is wound is set on the bobbin bracket 26, and the embroidery material T is fed out from the bobbin 27 and passed through the guide tube 24, and is guided from the embroidery material outlet 24a to the needle drop position of the sewing needle 3. In this state, the embroidery frame (that is, the workpiece to be sewn) is controlled to move in the X and Y directions based on predetermined embroidery data, and the needle bar 2 is driven up and down to make a known book by the function of the sewing needle 3 and a hook (not shown). Perform sewing. At this time, by driving the motor 7, the presser foot 10 is moved up and down at a predetermined timing with respect to the vertical drive of the needle bar 2, and the presser foot 10 a provided at the lower end of the presser foot 10 is moved. It is designed to function as a presser foot that presses the work to be sewn.

  The guide lever 20 is reciprocally swung left and right at a predetermined timing between the position shown in FIG. 1 and the position shown in FIG. With this operation, the embroidery material T guided to the needle drop position of the sewing needle 3 by the guide cylinder 24 is swung to the left and right of the needle drop position, for example, every time the needle bar 2 is reciprocated (every stitch). . As a result, the embroidery material T is sequentially sewn onto the workpiece by zigzag stitching. At this time, the rotary cylinder 11 is rotated by driving the motor 13, and the lever pin 21 is controlled so as to be positioned on the front surface in the relative traveling direction of the sewing head H based on the movement of the sewing product.

  FIG. 4 is for explaining the staggered operation at the time of the staggered stitch, and shows a schematic plan view of the guide lever 20 swinging to the left (corresponding to FIG. 1) as seen from above. In FIG. 4, the position of the embroidery material outlet 24 a ′ that is similarly swung to the left side in a known embroidery sewing machine is indicated by a one-dot chain line. In the sewing head H of the embroidery sewing machine according to the present invention, the presser foot 10 and the guide lever 20 are respectively arranged at positions facing each other, and the presser foot portion 10a is set to a length in which the tip thereof is aligned with the substantially needle drop position. Therefore, as is clear from this figure, the guide cylinder 24 can be disposed close to the presser foot 10 so that the embroidery material outlet port 24a is substantially close to the needle drop position P. .

  In this way, when the embroidery material outlet 24a is brought closer to the needle drop position P, the embroidery material outlet 24a is also brought closer to the previous stitch position Pa. The swing angle of the embroidery material T around Pa is larger than the swing angle of the embroidery material T ′ fed out from the embroidery material outlet 24a ′ arranged at the conventional position. Accordingly, since the embroidery material T is further away from the needle drop position P, the contact between the embroidery material T and the sewing needle 3 can be reliably prevented, and the staggered stitching of the embroidery material T is more stable than before. Can be done.

  FIG. 5 is an enlarged side view showing the lower part of the sewing head H. U is an upper thread and S is a sewing product. When the needle bar 2 (sewing needle 3) is lowered by the first stitch of zigzag stitching, the upper thread U passed through the sewing needle 3 is moved together with the sewing needle 3 between the semicircular portion of the thread guide 10c of the presser foot 10 and the concave portion 10b. Passed through. When the stitch of the first needle is formed and the needle bar 2 is raised, as shown in FIG. 5, the upper thread U connected from the sewing needle 3 to the sewing product S is formed between the semicircular portion of the yarn guide 10c and the concave portion 10b. In this state, the upper thread U is guided by the thread guide 10c and the recess 10b without leaving the vicinity of the needle drop position. Thus, even when the embroidery frame (not shown) holding the embroidery object S is moved greatly, the upper thread U does not come off from the thread guide 10c even if it comes off from the recess 10b. The upper thread U is surely guided near the needle drop position. Therefore, the upper thread U is not caught on the guide lever 20 and the cloth presser body 10 whose rotation is controlled as in the case of a conventional embroidery sewing machine, and there is no occurrence of thread breakage or needle breakage. Further, since the semicircular portion formed by the thread guide 10c is provided above the presser foot portion 10b, the embroidery of the guide tube 24 arranged at a position close to the needle drop position P until it is substantially aligned with the needle drop position P. Even if the material outlet port 24a is reciprocally swung linearly, the embroidery material outlet port 24a does not interfere with the presser foot 10 including the thread guide 10c.

  FIG. 6 is a schematic view showing another embodiment of a presser foot constituting a part of the sewing head H of the embroidery sewing machine according to the present invention, wherein (a) is a side view and (b) is a plan view. It is. The presser foot 32 is formed by bending a plate-like member, 32a being a presser foot portion, 32b being a recess (penetrating portion), and 32c being a thread guide (guide member). The tip portion of the presser foot 32a is bent upward at a substantially needle drop position and formed in a crank shape. As shown in FIG. 6, the yarn guide 32c may be integrally formed with the presser foot 32a.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims, the specification, and the drawings. Is possible. It should be noted that any shape, structure, and material not directly described in the specification and drawings are within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited. For example, in the above-described embodiment, a cord or tape is taken as an example of the embroidery material T, but other embroidery materials such as bead strings may be used besides the cord and tape.

1 is a front view showing an embodiment of a sewing head H of an embroidery sewing machine capable of zigzag stitching according to the present invention. It is a partially broken side view showing an embodiment of a sewing head H of an embroidery sewing machine capable of staggered stitching according to the present invention. FIG. 6 is a partial view of the lower part of the sewing head H as seen from the front, and is a view showing a state in which the elevating member 29 is at the lower limit position and the guide lever 20 is swung to the right. FIG. 6 is a schematic plan view for explaining the staggered movement during zigzag stitching, and shows a state in which the guide lever 20 is swung to the left. 3 is an enlarged side view showing a lower part of the sewing head H. FIG. It is the schematic which shows another Example of the cloth clamp body 32, (a) is a side view, (b) is a top view. FIG. 10 is a schematic plan view showing a state where the guide lever G swings to the left in the sewing advance direction when staggered stitching is performed in a conventional embroidery sewing machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Sewing machine spindle 2 ... Needle bar 3 ... Sewing needle 4 ... Supporting cylinder 5 ... Fixed sleeve 6 ... Engagement ring 7 (13, 30) ... Motor 8 ... Drive arm 9 ... Work clamp support 10 (32) ... Work presser 10a (32a) ... cloth presser 10b (32b) ... recess 10c (32c) ... thread guide 11 ... rotary cylinder 12 ... timing pulley 13a ... rotating shaft 14 ... driving pulley 15 ... timing belt 16 ... key member 17 ... interlocking member 17a ... groove 18 ... connecting piece 18a ... linkage groove 19 ... bracket 20 (G) ... guide lever 21 ... lever pin 22 ... base member 22a (22b) ... arm 23 ... guide arm 24 ... guide cylinder 24a (24a ') ... embroidery Material outlet 25 ... Roller 26 ... Bobbin bracket 27 ... Bobbin 28 ... Guide shaft 29 ... Lifting member 29a ... Fork part 30 ... Staggered motor H ... Sewing head T (T ') ... Embroidery material P ... Needle entry position (stitch position)
Pa ... Previous stitch position U ... Upper thread S ... Sewing product

Claims (4)

A presser foot (10) of an embroidery sewing machine that performs zigzag stitching, and the presser foot (10) is a presser foot support (9) that is driven up and down in synchronization with the up and down drive of a needle bar on which a sewing needle is mounted. ), And the embroidery sewing machine includes a guide device (20) for guiding the string-like embroidery material to the needle drop position,
A horizontal presser foot (10a) for pressing the workpiece,
It extends upward from a portion near the end of the presser foot (10a) to a height that does not interfere with the embroidery outlet port of the guide device, forms a curved portion above, and inserts a sewing needle inside the curved portion. guide member the upper thread passed through to the needle guide so as not to leave from the needle drop position together with the acceptable and (10c),
Comprising
Presser foot of the embroidery sewing machine, characterized in that arranging the front Symbol ends brought close to the needle drop position of the cloth pressing portion (10a). The guide member has a wire shape, and the curved portion is formed in a shape having a semicircular portion,
2. The upper thread connected from the sewing needle to the workpiece to be sewn when the sewing needle is raised is positioned in the semicircular portion, and the upper thread is guided so as not to leave the needle drop position. The presser foot of the described embroidery sewing machine.   The embroidery sewing machine according to claim 1 or 2, wherein the presser foot is a plate-like member, and the presser foot and the guide member are integrally formed by bending the plate-like member. Cloth presser body. The cloth presser support is driven up and down in synchronization with the up and down drive of the needle bar on which the sewing needle is attached, and the guide device for guiding the string-like embroidery material to be sewn to the sewing object to the needle drop position is reciprocated. An embroidery sewing machine of a type that performs staggered stitching by controlling the direction of the presser foot support and the guide device around the axis of the needle bar,
Comprising a presser foot attached to the lower end of the presser foot support;
The presser foot is
A horizontal presser foot for pressing the workpiece,
It extends upward from a portion near the end of the presser foot to a height that does not interfere with the embroidery outlet port of the guide device, forms a curved portion above it , and allows the insertion of a sewing needle inside the curved portion. it comprises a guide member for guiding the upper thread passed through to the sewing needle so as not to leave the needle location,
Embroidery sewing machine, characterized by arranging the front Symbol ends of the presser foot portion in close proximity to the needle location.

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