WO2004031467A1

WO2004031467A1 - Sewing machine

Info

Publication number: WO2004031467A1
Application number: PCT/JP2003/012724
Authority: WO
Inventors: Ikuo Tajima; Taichi Fukushima
Original assignee: Tokai Kogyo Mishin Kabushiki Kaisha
Priority date: 2002-10-03
Filing date: 2003-10-03
Publication date: 2004-04-15
Also published as: KR20040099289A; CN1685100A; CN100436694C; JP4070214B2; KR100596283B1; JPWO2004031467A1

Abstract

A sewing machine, comprising a holding frame (8) installed rotatably around a shuttle base and linearly movably in an axial direction having a supporting frame part (27) for holding a curved sewed body as a sewed object within a range short of all the periphery of a circumference and a fixing means (28) for fixing the sewed body held on the supporting frame part to the supporting frame part, wherein a plurality of holding members (21a, 21b, 21c) for holding the sewed body by fixing or holding the side edges of the sewed body at specified positions are installed on the supporting frame part (27), and the supporting frame part is opened to a space surrounded by the holding members. The plurality of holding frames (8) may be detachably installed in a multi-head sewing machine.

Description

Specification

Sewing machine technical field

The present invention relates to a sewing machine for performing sewing such as embroidery sewing on a curved eave of a hat, and further relates to a sewing machine suitable for sewing other curved sewing objects. The present invention relates to a holding frame for holding a workpiece, and further relates to a sewing machine using the holding frame. Background art

The eaves of a hat are made by sandwiching a thick core made of urethane or the like, which has almost the same shape, between the front and back fabrics and sewn them. An industrial sewing machine is used for the stitching. As shown in Fig. 23, the front fabric, the back fabric, and the core material are sewn to the body by a simple runninda stitch. The form of the core material may be a flat plate shape or a pre-curved shape in an arc shape, but in any case, the front fabric, the back fabric, and the core material are integrated. Sewing work is performed manually by the sewing machine operator using a special attachment that is held.

By the way, in recent years, various decorations on the upper surface of the eaves of the hat have become popular, and embroidery with excellent design is one of the decoration methods. When embroidering is to be performed, the embroidery data of the embroidery pattern of the specified embroidery pattern is placed in a plane orthogonal to the forward and backward movement directions (up and down directions, up and down directions) of the sewing needle of the sewing machine. It is necessary to control the movement in the X_Y direction based on the However, if the core material is a flat plate, that is, if the structure composed of the front cloth, the back cloth, and the core material is a flat plate, the operation can be performed with an existing embroidery machine. There has been no sewing machine that can perform embroidery in the curved state when the structure made of the front cloth, the back cloth, and the core material is curved.

On the other hand, in order to perform automatic embroidery stitching on the cap portion of the hat and other tubular objects, it is possible to rotate around the hook base (cylinder bed containing the hook) and in the direction of its rotation axis. 2. Description of the Related Art There is known a sewing machine in which a holding frame is mounted on a linearly movable drive ring, and a tubular workpiece is set on the holding frame to perform embroidery sewing. No. 0500—Japanese Unexamined Patent Application Publication No. 2000-3505567). However, such a conventional holding frame is suitable for setting a cap portion of a hat or other cylindrical objects because the sewing object is covered with a slippery cloth, but other shapes are not available. That is, it cannot be applied to a curved shape that is less than the entire circumference.

For eaves of cap hats such as baseball caps, users can use a flat eave by hand. As for the bending type, the evening which is previously bent into an ideal curved shape at the manufacturing stage is more expensive and preferable. In addition, those with arbitrary embroidery on the eaves are preferred by users as more luxury goods. However, in the case where the eaves are formed into an ideal curved shape in advance at the manufacturing stage, as described above, conventionally, embroidery can only be performed manually, which is troublesome, and requires a lot of manufacturing cost. There was a problem that the strike became expensive. Disclosure of the invention

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sewing machine in which sewing such as embroidery sewing can be easily performed on a curved eaves of a hat. It is intended to provide a suitable holding frame for holding the body. Furthermore, it is intended to provide a holding frame suitable for holding other curved sewn objects without being limited to a hat eaves, and a sewing machine using the same.

A holding frame according to the present invention is a holding frame for holding a sewn body so as to be rotatable around a hook base of a sewing machine and linearly movable in the direction of the rotation axis thereof. A receiving frame for holding a curved sewing object to be sewn within a range less than the circumference, and fixing means for fixing the sewing object held by the receiving frame to the receiving frame. And characterized in that: Further, the sewing machine according to the present invention is provided with such a holding frame.

According to the present invention, the receiving frame portion of the holding frame is configured to hold a curved workpiece to be sewn within a range less than the entire circumference. Thereby, the curved sewn object to be sewn is adapted to a non-cylindrical object, and the sewn object can be securely held. And, by providing a fixing means for fixing the workpiece to be held held in the receiving frame to the receiving frame, the sewing to be held held in the receiving frame is fixed. The holding frame can be moved without any inconvenience during the sewing operation.

In a preferred embodiment, the receiving frame portion has a plurality of holding members that hold the sewn body by fitting or gripping the edges of the sewn body at predetermined positions, and each holding member includes The receiving frame is opened in the enclosed space. Thus, since the receiving frame portion is opened in a space surrounded by the holding members, a wide embroidery range is secured. That is, embroidery can be performed up to the periphery of the sewing object.

The curved sewn object to be sewn is, as a typical example, a structure of the eaves of the cap hat, and is composed of a front fabric, a back fabric, and a core material curved in a predetermined curve sandwiched therebetween. By performing the sewing operation while the holding frame is driven in two axes (linear drive and rotary drive) based on the embroidery data, desired embroidery sewing is performed on the curved eaves structure held by the holding frame. be able to. This eavesdropping movement is eavesdropping If the components are temporarily sewn or temporarily fixed with an adhesive or the like, the sewing work for integrating the components of the eaves and the decoration work (embroidery sewing, decorative sewing using special thread, etc.) can be performed. Etc.) can be performed simultaneously. Therefore, the process can be simplified. Of course, the embroidery sewing on the curved eaves can be automated, so that the process can be simplified in this respect.

As one embodiment, the arrangement position of the holding member in the receiving frame portion can be adjusted according to the shape of the sewing object. This makes it possible to accommodate large and different eaves.

In one embodiment, the fixing means includes a lock member for locking the sewn body to the receiving frame portion, and the lock member is configured to be locked and unlocked in response to driving of the actuator. It is selectively controlled to one of the positions. This allows the eaves held in the holding frame to be locked so that they do not come off, and to release (unlock) this lock automatically by driving the actuator without human intervention. Is up.

In one embodiment, the sewing machine has a drive ring rotatable around the hook base and linearly movable in the rotation axis direction, and the holding frame is detachably attached to the drive ring. The holding frame is detachable from the sewing machine by performing the operation. For example, at least two holding frames are prepared, and one holding frame is set on the sewing machine. While performing embroidery sewing on the eaves, the eaves for the next embroidery sewing operation can be attached to the other holding frame removed from the sewing machine, and when the embroidery sewing is completed, remove the holding frame from the sewing machine. Since the eaves for the next embroidery sewing operation have already been installed, another holding frame can be attached to the sewing machine, and the next embroidery sewing operation can be performed immediately, increasing the efficiency. This is particularly effective for a multi-head sewing machine equipped with a plurality of sewing heads and hook bases (cylinder beds). When the holding frame is detachable as described above, if it is difficult to separate the holding frame from the actuator, which controls the locking member, the locking member is manually opened without using the actuator. It is better to lock or unlock.

As one embodiment, the fixing means includes a lock member for locking the sewn body to the receiving frame portion, and a biasing member for urging the lock member in a direction for releasing the fixing of the sewn body to the receiving frame portion. When the locking member locks the structure to the receiving frame, the lock is released by the urging force of the urging means, and the lock is released. In this case, the hook member is moved in a direction of releasing the fixing of the sewing object by the urging of the urging means. As a result, when the lock by the lock member is released, the lock member is moved by the urging means in a direction to release the fixing of the workpiece, so that the trouble of manually operating the hook member can be eliminated, and the sewing can be performed. The body can be easily fixed to and removed from the receiving frame with a single touch. As one embodiment, the fixing means includes a clamp member attached to the receiving frame portion, and the clamp member is configured to hold an edge of the workpiece set in the receiving frame portion. And the position to release the grip.

In one embodiment, the sewn body is an eave structure for a hat eave. In this case, the holding frame may be configured so that the eaves front portion of the eaves structure can face backward so that the eaves structure can be set in the receiving frame portion. You may comprise so that the eaves front part of a structure may be made forward and the said eaves structure may be set to the said receiving frame part. In the latter case, the receiving frame portion includes a holding member that holds at least one portion of a front edge of the set eaves structure, and holds both ends of a rear edge of the set eaves structure. It is preferable to further provide a pair of stoppers for locking each. In this way, by stopping both ends of the rear edge of the eaves structure with the stopper, it is possible to hold at least one portion of the front part of the eaves structure set by the holding member. It is possible to stably support the eaves constituting member set forward. BRIEF DESCRIPTION OF THE FIGURES

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a first embodiment of the present invention applied to a one-needle single-head embroidery sewing machine,

FIG. 2 is an enlarged plan view showing a portion of the holding frame in FIG. 1,

FIG. 3 is an enlarged front view showing a portion of the holding frame in FIG. 1,

FIG. 4 is a cross-sectional view taken along the line A—A of FIG.

FIG. 5 is a sectional view taken along the line BB of FIG. 2, that is, a sectional view of the holding frame.

FIG. 6 is a perspective view of a portion of the holding frame in FIG. 1,

FIGS. 7A and 7B are a plan view showing the structure of the hat's eaves, FIG. 7B is a perspective view of the structure, and FIG. Partial sectional view,

FIG. 8 is a plan view of a holding frame showing a second embodiment of the present invention in which lock / unlock control of a lock member is manually performed,

FIG. 9 is a side view of the second embodiment,

FIG. 10 is a partial cross-sectional view illustrating a locked / unlocked state in the second embodiment.

FIG. 11 is a plan view showing a third embodiment of the present invention in which a receiving plate curved in an arc shape is inserted and arranged in a substantially cylindrical space surrounded by a holding frame. Front view of the third embodiment,

FIG. 13 is a plan view showing a configuration related to the receiving plate in the third embodiment. Area view,

Fig. 14 is a front view showing a configuration related to the receiving plate.

FIG. 15 is a plan view showing an example in which the present invention is applied to a multi-head sewing machine, an example in which a holding frame is detachably attached, and an example in which a drive frame body can be replaced.

FIG. 16 is a cross-sectional view taken along the line C-C in FIG.

FIG. 17 is a plan view showing a state in which the frame drive unit in FIG. 15 has been removed from the sewing machine and holding frames have been removed from each drive ring of the frame drive unit. FIG. 18 is a hat eaves structure A plan view showing one embodiment of a holding frame configured to set

FIG. 19 is a front view of the embodiment of FIG. 18;

FIG. 20 is a partial front view for explaining an operation state,

FIG. 21 is a side view showing the operating state of the embodiment of FIG. 18;

FIG. 22 is a side view showing another embodiment of the embodiment of FIG. 18;

FIG. 23 is a diagram showing a conventionally known structure of a hat eave comprising a front cloth, a back cloth, and a core material. BEST MODE FOR CARRYING OUT THE INVENTION

First, an embodiment in which the present invention is applied to a 1 釙 single-head embroidery sewing machine will be described with reference to FIGS.

FIG. 1 is a perspective view of the entire one-needle single-head embroidery sewing machine. The sewing machine arm 2 is installed on the upper surface of the sewing machine table 1. The front part of the sewing machine table 1 is divided, and the front table 1a is lowered by a predetermined height. A cylinder bed (hook base) 4 whose upper surface is set to be substantially the same as the height of the upper surface of the sewing machine table 1 is installed below the sewing machine arm 2. A rotary hook that performs lockstitching in cooperation with a needle bar is stored inside the tip of the cylinder bed (hook base) 4, and the upper surface of the rotary hook is covered with a needle plate 9. The hole 1b, which is long in the center of the front table 1a, is used to allow the cylinder bed (hook base) 4 to escape when the front table 1a is set at the same height as the sewing machine table 1. belongs to. One needle bar is supported on the sewing machine head 3 provided at the front end of the sewing machine arm 2 so as to be vertically movable.

Below the sewing machine arm 2, a Y-direction driver 5 is provided on the table 1. The left and right ends of the Y-direction drive unit 5 are coupled to carriers of a Y-direction drive unit (not shown) installed on the lower surface of the sewing machine table 1, respectively. Direction). An X-direction drive unit is incorporated inside the Y-direction drive body 5, and an X-direction drive plate 6 (see FIG. 2) supported inside the Y-direction drive body 5 so as to be movable in the X-direction. The X-direction drive module fixed to the right end It is driven to move in the X direction by driving 7 overnight. A holding frame 8 for holding a curved workpiece to be sewn is attached to a substantially central lower surface of the Y-direction driving body 5. In the present embodiment, the curved sewn object to be sewn is a hat eave structure V as shown in FIGS. 7 (a) and 7 (b). As described above, this eave structure V has a core material curved in a predetermined curve in advance, and the core material is sandwiched between a front fabric and a back fabric, and is a perspective view of FIG. 7 (b). As shown in the figure, the whole is curved in advance into a predetermined curve. In addition, for example, the top material and the back material are overlapped, and the edges excluding the rear edge of the eaves (the portion sewn to the hat) are sewn together, and the curved core is put in a bag-shaped material. The eave structure V is configured.

FIG. 2 is an enlarged plan view showing the holding frame 8 and FIG. 3 is a front view thereof. FIG. 4 is a cross-sectional view of the holding frame 8 taken along the line A—A of FIG. 2, that is, a side view of the holding frame 8, and FIG. 5 is a cross-sectional view of the holding frame 8 shown in FIG. It is shown. FIG. 6 is a perspective view of the holding frame 8.

As shown in Figs. 2 to 5, a pair of mounting plates 11 located on both sides of the cylinder bed (hook base) 4 are mounted on the lower surface of the Y-direction driver 5, and together with the Y-direction driver 5, Move in Y direction. A support plate 12 is fixed to a front end of the mounting plate 11, and a drive ring 10 is rotatably supported on a front surface of the support plate 12. A linear guide 14 is fixed to the rear surface of the support plate 12, and the linear guide 14 is slidingly fitted to a linear rail 16 fixed to the lower surface of the cylinder bed 4. As a result, the support plate 12 (and the drive ring 10) stably moves back and forth in the Y direction, but does not move in the X direction.

As shown in FIG. 3, three rollers 15 are rotatably mounted on the front surface of the support plate 12 in a predetermined arrangement along the inner peripheral surface of the drive ring 10. The inner peripheral surface of the drive ring 10 is rotatably supported by the three rollers 15. Specifically, a ridge 15a is provided around the outer periphery of each roller 15 and this is fitted into a groove 10a provided around the inner periphery of the drive ring 10 to form the drive ring 1a. 0 is rotatable along the circumference of the ring. A wire 17 is wound around the outer periphery of the drive ring 10, and both ends thereof are connected to the X-direction drive plate 6 of the X-direction drive unit via a pair of fixing members 18. Therefore, when the X-direction drive plate 6 is moved in the X direction by the drive of the X-direction drive motor 7, the drive ring 10 is driven to rotate via the wire 17 in response. The holding frame 8 of the present embodiment is attached to the front end of the drive ring 10 by a plurality of ports 20. Accordingly, the holding frame 8 rotates and linearly moves in the Y direction with the rotational movement of the drive ring 10 in accordance with the X direction drive and the linear movement along the rotation axis in accordance with the Y direction drive. .

The holding frame 8 is composed of a receiving frame part 27 having a cylindrical shape as a whole and holding members 21 a, 21 b, 21 c attached to the receiving frame part 27. Element 2 8 (ie, lock member). That is, the main part of the holding frame 8 is constituted by a receiving frame 27, and the receiving frame 27 is attached to the drive ring 10 by a plurality of ports 20 to drive the holding frame 8. It is attached to ring 10. Although the receiving frame 27 has a cylindrical shape as a whole, it is not a perfect cylinder, and a part of the side peripheral surface of the cylinder is relatively largely removed to form an opening. The component V to be sewn is set on the receiving frame 27 so as to cover the opening, and holding members 2 provided at three places of the receiving frame 27 as described below. 1a, 21 and 21c are fitted and held. This opening allows passage of the needle fed out from the sewing machine head 2 toward the shuttle in the cylinder bed 4 with respect to the structure V to be sewn set in the receiving frame 27. It is for. Accordingly, the extent of the opening defines the embroidery possible range for the sewing structure V set in the receiving frame 27. Therefore, if this opening has a shape substantially conforming to the shape of the workpiece V held by the receiving frame portion 27, that is, the shape of the eaves, the embroidery possible range can be widened, and This is preferable because embroidery can be performed as widely as possible.

In the receiving frame 27, three holding members 21a, 21b, 21c are provided on the periphery of the opening. The mounting position of these holding members 21a, 21b, 21c with respect to the receiving frame 27 can be adjusted as will be described later. At the center of the front end of the opening, the other two holding members 2 lb and 21 c are arranged at symmetrical positions of the opening.

As shown in FIG. 6 or FIG. 2, etc., each of the holding members 21 a to 21 c is a pair of a substrate 22 to be attached to the receiving frame 27 and a pair attached to sandwich the substrate 22 from both sides. And a guide plate 23. The groove formed between the pair of guide plates 23 becomes a fitting groove 125 for fitting and holding the edge of the eaves constituting member V.

FIG. 7 (a) is a plan view of an eave structure V composed of a top cloth, a back cloth, and a core material. As shown in the figure, when the curved eaves structure V is set in the receiving frame 27, the front edge of the eave fits into the fitting groove 1 25 of the holding member 21a at the front edge. The left and right edges of the eave are fitted into the fitting grooves 125 of the left and right holding members 21b and 21c, respectively. The edge of the substrate 22 forms the bottom of the fitting groove 125. The eaves constituting body V fitted in the fitting groove 125 is formed in three directions by a pair of guide plates 23 forming both side walls of the groove 125 and the edge of the substrate 22 forming the bottom. Is locked so that it cannot be moved by the receiving frame portion 27.

In each of the pair of left and right holding members 21b and 21c, two holes H (see Figs. 4 to 6) for mounting a port are formed in the substrate 22 at the two positions. The holding members 21b and 21c are attached to the frame 27 by screwing the port 24 passing through the hole H into the screw hole of the frame 27. Then, the holding members 21 b and 21 c are appropriately moved along the elongated hole H while the port 24 is loosened, thereby disposing the holding members 21 b and 21 c with respect to the receiving frame 27. The position (mounting position) can be adjusted. The length direction of the elongated hole H is along the circumferential direction of the drive ring 10, that is, the rotating direction of the receiving frame 27, and the two holding members 21 b and 21 c are positioned with respect to the receiving frame 27. The respective positions can be adjusted in the circumferential direction of the lever. As a result, the arrangement of the pair of left and right holding members 21b and 21c is adjusted so as to conform to the lateral size (X in Fig. 7 (a)) of the eave structure V to be sewn. The structure V can be securely held in the receiving frame 27. In this embodiment, the arrangement of the holding member 21a for holding the front edge of the eaves constituting body V is fixed at a predetermined position and cannot be adjusted. This is because the front edge of the eaves structure V is set in a state where the front edge is fitted into the fitting groove 125 of the holding member 21a and pressed against the bottom thereof, and then the edge is held down by the holding arm 25. By pressing and locking with the pressing member 28 (locking member) at the tip of the eaves, it is possible to prevent rattling in front and rear of the eaves structure V. However, without being limited to this, the arrangement of the holding member 21 a holding the front edge with respect to the receiving frame 27 may be adjusted as necessary. 21a to 21c, the movement of the sewing component V set in the receiving frame 27 in the left-right rotation direction is performed by a pair of left and right holding members 21b and 21c. It is held firmly so that it does not move, and for one movement in the linear direction along the rotation axis (movement toward the rear of the table 1), the holding member 21a holding the front edge of the structure V is used. Locked and securely held. Further, with respect to the vertical movement perpendicular to the surface of the sewing component V, the holding members 21a to 21c are firmly held by the holding members 21a to 21c so as not to rattle.

Further, a holding arm 25 is pivotally supported by a shaft 26 in the receiving frame 27 so as to be swingable. The holding arm 25 and the holding member 28 attached to the distal end thereof function as fixing means for fixing the sewing structure V held by the receiving frame 27 to the receiving frame 27. I do. In the receiving frame portion 27, a bearing surface 27a is formed at a position facing the holding member 21a at the front edge, and a holding portion of the tip of the holding arm 25 is provided above the bearing surface 27a. Member 2 8 (that is, the lock member) is located. The holding member 28 is attached so as to be capable of adjusting the position in the front-rear direction (axial direction of the receiving frame portion 27) by a slot provided in the holding arm 25. The mechanism of the position adjustment may be the same as the mechanism of the position adjustment of the holding members 2 lb and 21 described above, and thus the detailed description is omitted. Thereby, the arrangement of the pressing member 28 is adjusted so as to conform to the size of the eaves structure V to be sewn in the front-rear direction (y in FIG. 7A), and the structure V It can be held tightly in part 27.

As shown in FIGS. 4 and 5, the outer side of the receiving frame 27 is An actuator 31 such as a key cylinder is arranged, and its base end is swingably connected to the drive ring 10. The tip of the drive rod 32 of the actuator 31 is pivotally supported by a drive arm portion 30 integrally connected to the presser arm 25. For example, the air cylinder, which is an actuator, is connected to an air pressure source (not shown) through a direction switching valve (not shown), and every time a foot switch (not shown) installed at the foot of the sewing machine operator is pressed. The protruding movement and retreating of rod 32 of Actuyue 31 operate alternately. When the rod 32 is protruded, the drive arm portion 30 of the holding arm 25 rotates clockwise in FIG. 4 around the axis 26, and accordingly, the tip of the holding arm 25 is held down. The member 28 moves downward in the direction of the bearing surface 27a, and the presser arm 25 as a whole assumes the posture shown by the solid line in FIG. As a result, the eaves structure V in which the holding member 28 is held by the receiving frame 27 is pressed from above at the bearing surface 27a, and the holding member 28 and the bearing surface 27a are Tuck in between and fix (mouth). On the other hand, when the rod 32 retreats, the drive arm portion 30 of the presser arm 25 rotates counterclockwise in FIG. 4 around the axis 26, and the presser arm 25 becomes an imaginary line in FIG. And the lock of the eaves constituting body V is released.

When setting the eaves structure V to be sewn on the receiving frame 27, the center of the front edge of the eaves structure V is fitted into the fitting groove 125 of the holding member 21a, and The 緣 portions are fitted into the fitting grooves 125 of the holding members 21b and 21c, respectively. Then, when the foot switch is turned on, the holding arm 25 is rotated clockwise in FIG. 4, and the holding member 28 at the tip presses the concave center portion of the rear edge of the eave structure V. As shown in FIG. 5, details of the holding member 28 are abutment piece 28 a for holding the eaves structure V held in the receiving frame 27 from above, and a guide slightly projecting from the tip edge. The eaves structure V held by the receiving frame 27 is fixed (locked) mainly by pressing with the abutting pieces 28a. In this way, the eaves structure V held in the receiving frame 27 is securely held and mounted on the receiving frame 27 so as not to flutter. FIG. 7 (c) shows an example of a state in which an eaves structure V having a core material Vc between a front cloth Va and a back cloth Vb is pressed and locked by a pressing member 28. The following enlarged sectional view is shown. As shown in the figure, the trailing edges of the front fabric Va and the back fabric Vb are appropriately longer than the trailing edges of the core material Vc sandwiched therebetween, and the abutting pieces 28 of the pressing member 28 are provided. In a, a portion consisting of only the front fabric Va and the back fabric Vb is pressed from above so as to lock the trailing edge of the core material Vc. Therefore, the abutting piece 28a of the pressing member 28 has a thickness substantially corresponding to the thickness of the core material Vc. Of course, the portion including the core material Vc can be appropriately pressed from above by the guide piece 28b slightly projecting from the abutment piece 28a.

As described above, when the eaves constituting member V is held in the receiving frame portion 27, the holding members 21a to 21c and the pressing member 28 (lock member) are used to hold the eaves constituting member V around the periphery. Since only a very small part needs to be retained, all other parts of the eave structure V can be subjected to embroidery sewing. That is, as described above, the opening other than the holding members 21 a to 21 c and the holding member 28 in the receiving frame 27 can be formed as wide as possible so that the opening is as open as possible. A wide embroidery area can be secured.

When performing embroidery sewing or other sewing operations, the X-direction drive unit and the Y-direction drive unit are driven in synchronization with the vertical movement of the needle and in accordance with the desired paper opening. By rotating the holding frame 8 and moving the holding frame 8 linearly in the axial direction, the desired sewing pattern can be sewn on the eaves structure V held by the holding frame 8.

The pressing member 28 is not limited to the example in which the lock-unlock control is performed by the actuator 31, and the lock Z unlock control may be manually performed. An embodiment in that case will be described with reference to FIGS.

As shown in the plan view of FIG. 8 and the side view of FIG. 9, the slider 41 is supported by the guide member 40 fixed to the upper surface of the receiving frame 27 so as to be able to slide in the front-rear direction. A holding member 28 is fixed to the tip. The slider 41 is urged in the forward direction (in the direction away from the holding member 21a) by the repulsive force of the coil panel 43 mounted between the slider 41 and the end face of the guide member 40. A ratchet gear 41 a is formed on the upper surface of the slider 41. The ratchet lever 44 pivotally supported above is urged by a torsion spring (not shown) in a direction in which the claw 44a at the tip thereof engages the ratchet gear 41a. As described above, in the second embodiment shown in FIGS. 8 to 10, the fixing means for fixing the sewn component V held by the receiving frame 27 includes the pressing member 28. It comprises a slider 41 for manual operation, a ratchet mechanism, a coil spring 43 and the like.

When locking the eaves structure V, the operating part 4 1b at the end of the slider 41 is pushed to slide until the holding member 28 comes into contact with the structure V, and the ratchet gear 4 is moved at that position. When the claw 44a is engaged with 1a, the lock is completed at that position (FIG. 10 (b)). When releasing the lock, the ratchet is released by pressing the pressing portion 4 4 b of the ratchet lever 44, and the slider 41 slides forward by the repelling force of the coil panel 43, and the lock is released (FIG. 1). 0 (a)). In this way, when releasing the lip, the slider 41 is immediately brought forward by the extension restoring force of the coil panel 43, which has been in a compressed state, simply by performing a one-touch operation of pressing the ratchet tray hopper 44. The pressing member 28 is automatically slid in the unlocking direction. Therefore, the manual operation of lock / unlock can be performed easily and quickly with one touch.

FIGS. 11 to 14 show an embodiment in which a receiving plate 201 curved in an arc is inserted and arranged in a substantially cylindrical space surrounded by a holding frame 8, and FIG. 11 is a plan view. Fig. 12 is a front view. FIG. 13 and FIG. 14 are a plan view and a front view, respectively, showing a configuration related to the receiving plate 201 extracted. Except for the configuration related to the receiving plate 201, the configuration is the same as that in FIGS. 8 to 10, and therefore only the configuration related to the receiving plate 201 will be described.

As shown in FIGS. 13 and 14, two stays 200 are attached to the front surface of the support plate 12, and a receiver plate 201 curved in a semi-cylindrical shape is provided on the upper end of the stay 200. Installed. The receiving plate 200 is provided with a mounting hole 204, which is screwed into the mounting hole 204 through the screw 202 to the upper surface of the tip of the stay 200 so that the receiving plate 201 is formed. Has been fixed. At the center of the receiving plate 201, a long and narrow through hole 203 is formed in front and rear. The through hole 203 corresponds to the position of the shuttle provided in the cylinder bed 4 (hook base), and the sewing machine that enters and exits the needle hole 205 of the needle plate 9 from the upper sewing head 3. It allows the needle to pass.

As seen in FIGS. 11 and 12, the receiving plate 201 is inserted into a substantially cylindrical space in the receiving frame portion 27 of the holding frame 8, and as described above, the supporting plate 1 2 Therefore, it can move linearly with the holding frame 8, that is, the receiving frame 27, but does not rotate together. The upper surface of the receiving plate 201 hardly comes into contact with the eaves structure V set in the receiving frame 27, and a part of the eaves structure V touches when a needle is inserted. If so, it is not intended to support eaves configuration V. Rather, by covering the opening of the receiving frame 27 with the receiving plate 201 downward, the eaves constituting member V is set from the relatively large opening when the eaves constituting member V is set on the holding frame 8. It prevents the V from falling off and plays a role in facilitating the work of mounting the eaves structure V.

In each of the above embodiments, the holding frame 8 is fixed to the drive ring 10 via a plurality of ports 20 so as not to be easily detached. However, the present invention is not limited to this. You may make it attach to. Further, the present invention may be applied to a multi-head sewing machine having a plurality of sewing heads 3. In addition, the drive frame for attaching and moving the workpiece to be sewn is not limited to the case where it is configured as a sewing machine dedicated to embroidery (sewing) on the curved eave structure V. The present invention can be applied to a general-purpose sewing machine that can be arbitrarily replaced with any one of them. The embodiment shown in FIGS. 15 to 17 is one in which such various modifications are applied, that is, an example in which the present invention is applied to a multi-head sewing machine, and in which the holding frame 8 is detachably attached. Fig. 15 is a plan view, and Fig. 16 is a cross-sectional view taken along the line C-C of Fig. 15. The embodiments shown in FIGS. 15 to 17 show examples in which these modifications are implemented together. However, the present invention is not limited to this, and these modifications are selectively used as appropriate. Of course, you may do so. Fig. 15 shows four cylinder beds (hook base) 104 installed at predetermined intervals in the X direction corresponding to each of a plurality (four) of sewing heads (not shown). In the head embroidery sewing machine, the frame drive unit 100 according to the embodiment of the present invention is mounted, and the four drive rings 107 mounted on the frame drive unit 100 are respectively provided with holding frames 111. This shows a state where 8 is set.

A long Y-direction driver 105 extends in a direction crossing each cylinder bed 10.4, and this extends in the Y-direction on the machine table 101 similarly to the Y-direction driver 5 described above. It is driven linearly (back and forth). Further, as shown in FIG. 16, an X-direction slide body 106 is provided inside the Y-direction drive body 105 and is driven to slide in the X-direction.

As shown in FIG. 16, a support plate 108 similar to the above-described support plate 12 is provided for each cylinder pad 104, and each support plate 108 is provided with the aforementioned drive ring 1 A drive ring 107 similar to 0 is rotatably mounted in the same manner as described above. Each support plate 108 is mounted on a pair of mounting plates 111 in the same manner as the support plate 12 described above is mounted on a pair of mounting plates 11. The pair of mounting plates 111 for each of the support plates 108, that is, for each drive ring 107 are connected to one connecting plate 110 which is long in the X direction. One drive plate 112, which is also long in the X direction, is engaged with the upper surface of the connecting plate 110 so as to be slidable in the X direction. Then, similarly to the above-mentioned wire 17, both ends of the wire wound around each drive ring 107 are connected to the front edge of the drive plate 112, respectively. Each drive ring 107 is rotated in accordance with the linear movement. Similarly to the holding frame 8, a holding frame 118 for holding the sewn body, that is, the eave structure V, is configured to be detachably attached to each drive ring 107. Then, the connecting plate 110 is fixed to the base of the Y-direction driving body 105 by tightening screws 115, and the driving plate 112 is connected to the X-direction sliding body 106 with the screws 116. It is fixed by tightening. Therefore, when the X-direction slide body 106 moves linearly in the X direction, the connecting plate 110 and the support plates 108 fixed thereto do not move, and the driving plate 112 moves linearly in the X direction. Each of the driving rings 107 and the holding frames 118 attached thereto are rotated accordingly. When the Y-direction driver 105 moves linearly in the Y-direction, the elements (the drive ring 107 and the holding frame 1) shown in FIGS. (Including 18) moves linearly in the Y direction.

In each of the drive rings 107, two locking mechanisms 1 21 are provided at two upper portions thereof, and the corresponding holding frames 1 18 are connected via the two locking mechanisms 1 2 1. Installing. A retainer portion 120 is fixedly formed at the base of the holding frame 118, and when the holding frame 118 is mounted on the drive ring 107, the retainer portion 120 is grasped manually. And pushes it into the drive ring 107, the lock member (not shown) provided on the base of the holding frame 118 or the retainer 120 is attached to the lock mechanism 122. The holding frame 1 18 is fixed to the drive ring 107 by being engaged and locked. When removing the holding frame 1 18 from the drive ring 107, release the lock by pressing down the release levers 1 2 2 of the lock mechanisms 1 2 1 on both sides, and release the lock by the elasticity of the panel member 1 2 3 The holding frame 1 18 is pushed forward with the bon so that it can be easily removed. The lock mechanism 122 itself may use a known lock mechanism of this type, and a detailed description thereof will be omitted.

The structure of each holding frame 1 18 may be substantially the same as that of the holding frame 8 described above.However, in the case of a multi-head type, the overall weight increases, so that the load applied to the drive source increases. For this purpose, as shown in FIG. 16, it is preferable that the opposite side (that is, the lower side) of the opening of the receiving frame portion 127 constituting the holding frame 118 be notched largely. Of course, such a large notch on the opposite side (that is, the lower side) may be provided in the receiving frame portion 27 in the above-described embodiment. A holding member 28 (locking member) for locking the eaves structure V held by the receiving frame portion 127 is urged by a panel similarly to the embodiment shown in FIGS. It is preferable to use a manually operated type comprising a slider 41, a ratchet mechanism, a ratchet treper 44, and the like. This is because the use of Actuyue 31 will complicate the attachment / detachment structure of the holding frame 118. In the example shown in Fig. 16, the holding members (21b, 21c in Fig. 2 and others) provided on the left and right edges of the opening of the receiving frame part 127 hold two The members 21b1 and 21b2 are provided. The use of the holding members 2 1 b 1 and 21 b 2 divided into two per side in this manner has an advantage that the shape of the sewn body, that is, the eaves constituting body V can be easily changed.

FIG. 17 shows a connecting plate 110 in which four driving rings 107 are connected via the support plate 108 and the mounting plate 111, and a driving plate 111 slidingly engaged with the connecting plate 110. 2 shows a state in which the frame drive unit 100 made of two is removed from the sewing machine main body, and shows a state in which the holding frame 118 is removed from each drive ring 107. When attaching / detaching the frame drive unit 100 to / from the sewing machine, it is a common practice to remove the holding frame 118 from all the drive rings 107 as shown in Fig. 17 and perform the attachment / detachment work. easy. When attaching the unit 100 to the sewing machine, the connecting plate 110 is placed on the cylinder bed 104 so that the cylinder ring 104 is fitted into each drive ring 107. And fix it to the lower surface of the Y-direction driver 105 by tightening the screws 115 (see Fig. 16). Next, the upper drive plate 112 is fixed to the X-direction slide body 106 of the Y-direction drive body 105 by tightening the screw 116 (see FIG. 16). Then, a holding frame 118 in which a sewn body, that is, an eaves constituting body V is set in advance, is fitted into each drive ring 107, and is fixed via a lock mechanism 121.

As described above, since the holding frame 118 is detachable from the drive ring 107, efficient work can be performed as follows. While performing embroidery sewing on the eaves structure V held by the holding frame 1 18 set in each drive ring 107, The eaves structure V to be embroidered next is attached to the holding frame 1 1 8 of the above. When the embroidery is completed, each holding frame 1 18 is removed from the driving ring 107, and the other holding frame 118 on which the eaves structure V is already mounted is set on the driving ring 107. The next embroidery sewing work is immediately performed on the eaves structure V held by the holding frame 118 set in the drive ring 107. While this embroidery is being performed, remove the embroidered eaves structure V held by the holding frame 1 18 removed from the drive ring 107 earlier, and Replace it. By replacing the holding frame 118 in this way, the embroidery work can be performed extremely efficiently.

When using the sewing machine for other purposes such as normal flat embroidery or embroidery on a cylinder such as a hat or bag, remove each holding frame 1 18 from each drive ring 107, and Remove the screws 115, 116, and connect the drive ring 107 to the connecting plate 110, which is connected via the supporting plate 108 and the mounting plate 111, and slide-engage it. The frame drive unit 100 composed of the drive plate 1 1 and 2 that is attached is removed from the sewing machine. Instead, a frame unit for the desired function, such as a frame unit for normal flat embroidery or a tubular embroidery frame unit such as a hat or bag, is attached to the sewing machine. Tighten and fix via 5, 1 16 etc. In other words, the frame unit of various functions is exchangeable because it is fastened and fixed at the same place via the above-mentioned screws 115, 116 and the like.

In each embodiment, the bottoms of the fitting grooves 1 25 of the holding members 21 a, 21 b, 21 c, 21 bl, 21 b 2 provided on the receiving frame portions 27, 127 are provided. It is good to always be able to protrude by spring bias. Then, even if the size of the sewing component V fitted in the fitting groove 125 is slightly changed, the bottom of the fitting groove 125 is brought into contact with the edge of the sewing component V by the panel bias. It is automatically adjusted so that it always comes into contact, which is convenient.

In addition, the present invention is not limited to the hat eaves, but has a curved shape in advance and has a size less than the entire circumference of the circumference of the holding frame 8 or 118 attached to the driving ring. It can also be applied to embroidery sewing, decorative sewing, and other sewing operations on various other sewn objects. In this case, the sewn body does not necessarily have to be composed of a plurality of fabrics or cores, but may be composed of a single material.

The structure or configuration of the holding members 21a, 21c, 21c, 21b1, 21b2 and the lock member 28 provided in the receiving frame portions 27, 127 are the same as those in the above embodiment. The present invention is not limited to the above-described one, and the point is that any structure or configuration can be used as long as the structure to be sewn can be held and fixed to the frame portion.

For example, in the above embodiment, the holding members 21a, 21b, 21c, 21b1, 21b2 and the lock member 28 provided on the receiving frame portions 27, 127 have different structures. However, these may have substantially the same structure. For example, the lock member 28 has the same structure as the holding member 21b or 21c. Or a member forming the movable fitting groove 125. In this case, the movable range of the movable holding member (fitting groove forming member) corresponding to the hook member 28 may be set relatively large. When setting the sewn structure V in the receiving frame 27, the movable holding member (fitting groove forming member) corresponding to the lock member 28 is set back relatively large, and The front edge portion and the left and right side edge portions of the sewing component V are fitted into the fitting grooves 1 25 of the holding members 21 a to 21 c so that the sewing component V is received by the frame portion 27. Finally, the movable holding member (fitting groove forming member) corresponding to the lock member 28 is advanced toward the sewing structure V, and the edge of the sewing structure V is inserted into the fitting groove. The movable holding member (fitting groove forming member) may be fixed by screwing. In this case, the operation is somewhat troublesome, and the fixing force is not always exerted sufficiently. However, since it functions as a fixing means, it is included in the scope of the present invention.

In each of the above embodiments, the holding frame (8, 118) is set so that the eaves of the hat, which is the sewing object V, is set backward in the holding frame (8, 118). Part (27, 1 27), holding member (21 a to 21 c), holding member (28), etc. The configuration of the receiving frame portion and the like of the holding frame (8, 118) may be changed so that the eaves are set forward. An embodiment of the holding frame 8A configured so that the eaves of the hat (eaves structure V) are set forward will be described with reference to FIGS. 18 to 22. FIG. FIG. 18 is a plan view showing one configuration example of such a holding frame 8A, FIG. 19 is a front view thereof, and FIG. 20 is a partial front view similar to FIG. FIG. FIGS. 21 and 22 show side views of the holding frame 8A with respect to different operation states.

As shown in FIG. 18, a receiving frame portion 301 constituting a main portion of the holding frame 8A is attached to the drive ring 10 (or 107) in the same manner as in each of the above embodiments. When the holding frame 8A is configured to be easily attached to and detached from the drive ring 10 (or 107), for example, the mounting structure is the same as that of the embodiment of FIG. 16 described above. Points are not shown in FIGS. 18 to 22. However, such a design change of the examples of FIGS. 18 to 22 may be easily implemented from the items already described with reference to FIG. 16 and the like. Further, similarly to the above embodiments, the drive ring 10 (or 107) is attached to the support plate 12 (or 108) provided with the attachment plate 11 (or 111). Since the structure for driving the holding frame 8A by the support plate 12 (or 108) is the same as that of each of the embodiments described above, it is shown in FIGS. 18 to 22. Is omitted.

As shown in FIGS. 18, 19, 21 and 22, the receiving frame portion 301 is cylindrical and its tip is formed obliquely. The receiving frame portion 301 has an opening at an upper portion and a lighter hole at a lower portion. A holding member 302 is fixed to a central portion on the back side of the opening of the receiving frame portion 301. Holder The material 302 presses the central part of the base (rear part) of the eave structure V set with the front part of the eave facing forward with respect to the receiving frame part 301 at the part extending to the opening. This prevents the set eaves structure V from rising.

On both sides of the receiving frame portion 301, two clamping mechanisms 303a and 303b are respectively provided to hold the side portions of the eave structure V at two places. You. Since the clamp mechanisms 303a and 303b for each side have the same configuration, the same reference numerals are used for convenience, and only the clamp mechanisms 303a and 303b provided on one side are provided. explain. Further, since the clamp mechanisms 303a and 303b provided on one side have substantially the same configuration even though the specific shape is slightly different, for convenience, the clamp mechanism 303a closer to the near side is used. Only will be described in detail. The clamping mechanism 303a has a substrate 304a fixed to the receiving frame part 301 so as to be position-adjustable, and a guide plate 304a is provided at the tip of the substrate 304a. It is fixed. The support member 304a is fixed to the substrate 304a. The supporting member 300a is provided with a clamping member 310a provided with a clamping piece 300a that clamps the side portion of the eave structure V with the guide plate 300a. It is rotatably supported by 9a. The shaft 309a is provided with a torsion panel 310a, and the clamp member 308a is urged in a rotating direction in which the holding piece 307a contacts the guide plate 305a. ing. One end of a wire 312 is connected to the clamp member 3108a, and when the wire 312 is moved by the operation of a lock lever 316 described later, the clamp member 3108a is turned into a torsion spring. The holding piece 307a is rotated in a direction away from the guide plate 30.5a against the urging force of 310a. The forward clamping mechanism 303 a corresponds to the shape of the eaves constituting body V (the shape of the front part of the eaves), so that the substrate 304 a, the guide plate 300 a, and the holding piece 30. The tip of 7a is slanted. In addition, stoppers 311 are provided on the guide plate 3 05 b of the rear clamp mechanism 303 b to determine (or guide) the positions of both ends of the root of the eave structure V. is there.

The other ends of the wires 3 12 (total of 4 wires) provided for each of the clamp mechanisms 3 0 3 a and 3 0 3 b are connected to the sliding members 3 1 3 provided below the receiving frame 3 0 1. Connected to the arm. A rod 314 is fitted in the sliding member 313, and the sliding member 313 can slide along the rod 314. The rod 314 is provided on the receiving frame portion 301 via a fixing member 315. A lock lever 3 16 is provided on the fixing member 3 15 in a snap-lock manner so as to be switchable between two positions. The link arm 316a of the lock lever 316 engages with the engaging recess of the engaging member 317 fixed to the sliding member 313. As a result, as shown in FIG. 21, when the lock lever 3 16 is raised to the rear side, the sliding member 3 13 is located at the rear side, and the clamp mechanisms 303 a, 303 b The clamp members 310a and 310b of Fig. 19 are urged by the torsion panel 310a and 310b as shown in Fig. 19. As shown in the figure, the holding pieces 300 a and 300 b are located at the position where the eaves structure V is held by the guide plates 300 a and 310 b, that is, at the clamp position. On the other hand, as shown in Fig. 22, when the lock lever 3 16 is laid down toward the user, the slide member 3 13 is pulled forward by the link arm 3 16 a of the lock lever. The wires 312 are pulled against the urging force of the display panels 3110a and 310b, and the clamp members 310a and 310b are rotated to the state shown in FIG. The clamp is released (it becomes the unclamping position). In this state, even if a force is applied in the direction of returning the wire 312 by the urging force of the display panel 310a, 31Ob, the lock lever 131 is not moved in that direction. Since 6 is locked, it does not move and the unclamping position is maintained. On the other hand, if the lock levers 3 16 are manually turned to the rear side as described above, the lock is easily released and the clamp position can be switched to the above-described clamp position. A slider 319 is provided on the upper surface of the receiving frame portion 301 so as to be slidable in the front-rear direction by a guide member 318, and a holding arm 322 is provided at the tip of the slider 319. Is fixed. The slider 319 is urged forward by a coil panel 321 provided between the slider 319 and the end of the guide member 318. A ratchet gear 3222 is provided on the upper surface of the slider 3119, and the tip of a ratchet lever 323 that is supported above the ratchet gear 3222 engages with the ratchet gear 3222. The panel member 324 fixed to the upper surface of the guide member 318 is for urging the tip of the ratchet torebar 323 in the direction of engagement with the ratchet gear 322. Pins 3 and 2 5 are set up near the left and right ends of the holding arm 3 20, respectively, and a holding plate 3 2 6 is provided on the pin 3 and 2 so as to be vertically movable. The presser plate 3 2 6 holds the tip of the eaves structure V (the front end of the eaves) between the guide portion 3 20 a of the presser arm 3 20 and the presser plate 3 2 6. It is urged downward by Yipane. FIG. 22 shows a state in which the presser arm 320 is located nearer to the front, while FIG. 21 shows a state in which the presser arm 320 is located further behind. To hold the holding arm 3 220 from the position shown in FIG. 22 to the position shown in FIG. 21 in order to hold the eaves structure V set in the receiving frame 301, both pins 3 2 5 Press the upper part of the back with your finger. As a result, the holding arm 3220 slides together with the slider 319 while shifting the engagement position between the ratchet gear 3222 and the tip of the ratchet lever 3233. On the other hand, when returning the presser arm 320 from the position shown in Fig. 21 to the position shown in Fig. 22, rotate the ratchet lever 3 23 to release the engagement between its tip and the ratchet gear 3 22. Let it. As a result, the slider 3 19 is pulled by the coil panel 3 21 and returns to the position shown in FIG. 22 together with the presser arm 3 220.

In order to set the eaves constituting body V on the receiving frame portion 301 of the holding frame 8A shown in FIGS. 18 to 22, the following procedure may be performed. First, as shown in Fig. 22, lock lever Lay 3 16 forward and set it to the unclamping position, and set the clamp members 3 08 a and 3 08 b of each clamping mechanism 3 0 3 a and 3 0 b to the open position (the state shown in Fig. 20). At the same time, rotate the ratchet lever 3 2 3 to return the presser arm 320 to the front. Next, the eave structure V is set in the opening of the frame portion 301. At this time, the central portion of the base of the eaves structure V is inserted under the holding member 302, and both ends of the base of the eaves structure V are connected to the stoppers 3 1 1 of the rear clamping mechanism 303 b. Set it in contact. As described above, by contacting the both ends of the base portion of the eaves structure V with the stoppers 311 on both sides, the eaves structure V set forward can be set without inclination. Next, slide the presser arm 320 toward the back, and pinch the tip of the eave structure V between the guide portion 320 a of the presser arm 320 and the presser plate 326. So that Then, raise the lock lever 3 16 to the back side to set the clamp position, and rotate the clamp members 3 08 a and 3 08 b of the clamp mechanisms 3 0 3 a and 3 0 The both side portions of the eave structure V are sandwiched between the holding pieces 300 a and 310 b of the 08 a and 310 b and the guide plates 300 a and 300 b. As a result, as shown in FIG. 21, the eaves constituting body V is firmly held by the holding frame 8A.

As described above, according to the embodiment shown in FIGS. 18 to 22, both ends of the base portion of the eaves structure V are positioned with the direction in which the eaves structure V including the hat eaves is set to the front. Since the stoppers 311 are provided, the both ends of the base of the eaves structure V are set in contact with the stoppers 311 so that the eaves structure V set forward can be easily tilted. It can be set. Further, when the holding arm 3200 is slid to hold the front end of the eaves structure V, the force in the direction in which both ends of the root of the eaves structure V abut the stopper 311 is also applied. There is an advantage that the eaves structure V does not inadvertently tilt due to the addition.

In the embodiment shown in FIGS. 18 to 22, the sliding member 3 13 for rotating the clamp members 310 a and 310 b is moved by manual operation of the lock lever 3 16. However, a driving source such as an air cylinder may be provided to automatically drive the sliding members 3 13. Similarly, the slide of the presser arm 3200 (slider 3119) may be automatically driven by a drive source such as an air cylinder.

By the way, in the embodiment shown in FIGS. 18 to 22, three rollers 15a to 15c (FIG. 19) supporting the inner peripheral surface of the drive ring 10 are connected to the ports shown in FIGS. In this embodiment, the upper two rollers 15a and 15b are different from the rollers 15 shown in FIG. 3 and the like. It has an elongated shape, and the inner peripheral surface of the receiving frame 301 is supported by rollers near its tip to guide the rotation of the receiving frame 301 (see FIG. 18). ). As a result, the rotation of the receiving frame portion 301 becomes more stable. The advantage is that

The holding frame 8A constructed in accordance with the embodiment shown in FIGS. 18 to 22 or modified as appropriate based on the embodiment is applied to the eave structure V composed of a hat eave. The present invention is not limited to this, and it is needless to say that the present invention can be appropriately applied to other appropriate structures V.

As described above, according to the present invention, the receiving frame portion of the holding frame is configured to hold the curved workpiece to be sewn within a range less than the entire circumference. Even if the curved sewn body is not a perfect cylindrical object, the sewn body can be reliably held in conformity with the shape. Further, by providing a lock member for fixing the sewn body held in the receiving frame portion to the receiving frame portion, the sewn body held in the receiving frame portion is locked, and a sewing operation is performed. The holding frame can be moved without any inconvenience. In addition, the sewing operation process can be simplified or made more efficient. Further, according to the present invention and / or embodiments, there are various advantages as described above.

Claims

The scope of the claims

1. A holding frame for holding an object to be sewn so as to be rotatable around a hook base of the sewing machine and linearly movable in the direction of the rotation axis thereof.

A receiving frame portion for holding a curved sewn object to be sewn within a range less than the entire circumference;

Fixing means for fixing the sewn body held by the receiving frame portion to the receiving frame portion.

2. The receiving frame portion has a plurality of holding members that hold the sewn body by fitting or gripping the edges of the sewn body at predetermined positions, and a space surrounded by the holding members. The holding frame according to claim 1, wherein the receiving frame portion is open.

3. The holding frame according to claim 2, wherein an arrangement position of the holding member in the receiving frame portion is adjustable according to a shape of the sewing object.

4. The fixing means includes a lock member for locking the sewn body to the receiving frame portion, and the lock member is selected to one of a lock position and an unlock position in accordance with driving of the actuator. 2. The holding frame according to claim 1, wherein the holding frame is dynamically controlled.

5. The fixing means includes: a locking member for locking the sewn body to the receiving frame portion; and a urging member for urging the hook member in a direction to release the fixing of the sewn body to the receiving frame portion. A lock member that locks the object to be sewn to the receiving frame by the lock member against the urging force of the urging means, and releases the lock. 2. The holding frame according to claim 1, wherein the lock member is moved in a direction in which the fixing of the sewing object is released by the urging of the urging means.

6. The sewing machine has a drive ring rotatable around the hook base and linearly movable in the rotation axis direction, and the holding frame is detachably attached to the drive ring. The holding frame according to claim 1, wherein the holding frame is detachable from the sewing machine by means of a button.

7: The apparatus further comprises a receiving plate inserted into the substantially cylindrical space surrounded by the holding frame and arranged so as not to rotate together with the holding frame. 2. The holding frame according to claim 1, wherein a through hole is provided corresponding to a position of the shuttle provided in the sewing machine to allow a sewing needle to pass therethrough.

8. The fixing means includes a clamp member attached to the receiving frame portion, and the clamp member releases a position where the edge of the sewing body set on the receiving frame portion is gripped and the grip is released. The holding frame according to claim 1, wherein the holding frame can be switched to any one of the holding positions.

9. The holding frame according to claim 1, wherein the sewn body is an eave structure for a hat eave.

10. In the holding frame, the eaves constituting body is set to the receiving frame part with the eaves front part of the eaves constituting body facing forward,

The receiving frame portion includes a holding member that holds at least one portion of a front edge portion of the set eaves structure,

10. The holding frame according to claim 9, further comprising a pair of stoppers for locking both ends of a rear edge of the set eaves structure.

11. The holding frame according to claim 10, wherein the fixing means includes a gripping member that grips a side edge of the eaves structure set in the receiving frame.

12. A sewing machine provided with the holding frame according to claim 1.

13. The sewing machine according to claim 12, wherein the sewing machine is a multi-head sewing machine provided with a plurality of hook bases, and the holding frame is provided on each of the hook bases.

14. The sewn body is formed of a sewn body of a hat eave, and the sewn body is held in the receiving frame portion of the holding frame and fixed via the fixing means, and is held as described above. 13. The sewing machine according to claim 12, wherein the desired embroidery pattern sewing on the eaves can be performed by moving the frame to perform a desired embroidery pattern sewing operation.