TW446780B - Full-rotary crocheting device - Google Patents

Abstract

A fully rotatable shuttle comprising a large shuttle (2) and a medium shuttle (3), having a point (10) for trapping a needle thread (9), which is installed rotatably in the large shuttle (2), wherein the medium shuttle (3) is pressed by a driver (4) so as to rotate continuously in the direction of rotation (B) in synchronous with the vertical movement of a needle (8), a bobbin case (5) in which a bobbin thread (12) wound on a bobbin (6) is stored is installed in the medium shuttle (3), whereby seams can be formed by, with the bobbin thread (12) pulled out from the bobbin case (5), rotating the medium shuttle (3), trapping the needle thread (9) by the point (10), expanding the loop of the needle thread (9) along the outer surface of the medium shuttle (3), and passing the medium shuttle (3) and bobbin case (5) through the loop of the needle thread (9) and winding the needle thread (9) on the bobbin thread (12) so that the medium shuttle (3) and the bobbin case (5) are passed through the loop of the needle thread (9).

Description

446780 A7 49 I 9pl f.doc / 006 __B7 V. Description of the Invention (/) The present invention is a full-turn hook-threading device for financial and industrial sewing machines and industrial sewing machines. Typical conventional vertical = full-swing hook thread device includes: the drive path of the private IH Hai slewing shaft and the bur driven by the up and down and back and forth drive around the rotary shaft straight; and the device installed in the outer shuttle Inner bobbin, bobbin case that can be freely disengaged in the inner bobbin, and bobbin that can be rolled up into the bobbin case. The outer shuttle includes a tip that is inserted into the upper thread of the needle, a side wall with a groove in the inner wall portion and a bottom wall connected to one end in the axial direction of the side wall, and protruding from the bottom wall in the opposite direction to the side wall. It is integrated and fixed to the hub of the lower shaft of the sewing machine in the circumferential direction. The side wall of the outer shuttle has a circumferential direction, in order to avoid the lack of α when the needle is inserted; the above-mentioned tip is formed at one end of the side wall downstream of the top of the outer shuttle in the direction of rotation. The inner bobbin includes a side wall forming the rail on the outer wall portion and a bottom portion connected perpendicularly to one end in the axis direction of the side wall, and a flange connected to the outer side in the radial direction from the other end in the axis direction of the side wall axis, and perpendicularly set in the bottom center toward Stud in the direction of the opening. The rail has a gap in the circumferential direction to allow the needle to be inserted into the area to successfully complete the following crossover operation; the flange has a recess for fixing the shuttle. The inner shuttle is installed on the outer shuttle by combining the bottom with the bottom wall of the outer shuttle. The rail can be freely rotated on the outer shuttle because the rails are embedded in the grooves of the outer shuttle. It is embedded and fixed in the recess of the fixed shuttle. The sewing machine's bobbin holder prevents the inner bobbin from turning in the same direction as the outer bobbin is turned. The bobbin case includes a side wall 'with a bobbin thread adjusting spring and a vertical connection to 4

In in I n 1 n If I., .- (Please read the notes on the back before filling out this page) Order _ Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs This paper is printed in accordance with China National Standard (CMS) A4 specifications ( 210X297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 446780 49! 9pif.doc / 006 ^ B7 V. Description of the invention (of) An end wall with a spring latch device at one end in the axial direction of the side wall. The bobbin case is wound in the state of being taken up from the lower line, and is fixed to the inner bobbin pin by a spring latch device. The lower thread contained in the bobbin case is led out by the bobbin, inserted between the side wall of the bobbin case and the bobbin thread adjusting spring, and guided upward through the open end of the inner bobbin. The vertical full-hook hook thread device works by first rotating the outer shuttle around the above-mentioned axis of rotation, and capturing by the tip the upper thread on the bur which is driven back and forth in synchronization with the swing of the outer shuttle to make the upper thread The ring expands along the outer surface of the inner shuttle to bypass the surrounding area, and then the upper thread is looped around the inner shuttle to cross the thread. The receiver then hangs the upper thread on the lower thread from the spool. In this state, there is no icon. The ascending action of the scale will pull the upper line upward to achieve the operation of sewing the object to be sewn on the platform. A typical conventional semi-swivel hook-and-thread device includes a large shuttle fixed on the body of the sewing machine, and a middle shuttle installed in the large shuttle, and a drive shaft driven around the axis of rotation by shaking, the axis and the The axis of the sewing needle driven up and down is vertical, and the bobbin case can be freely disengaged in the middle shuttle, and the bobbin can be rolled up into the bobbin case. A groove is formed on the inner wall of the large shuttle in the circumferential direction. The middle shuttle includes a side wall extending along a semi-circular arc, a bottom wall connected to one end in the axial direction of the side wall, and a stud positioned on the bottom wall and facing the other end in the axial direction of the side wall. The middle shuttle track is inserted into the groove of the large shuttle to form a freely rotatable mesh in the large shuttle. The drive shaft includes a drive shaft body extending along a semi-circular arc, and is integrated with the drive shaft body and fixed. A hub provided on the circumferential direction of the lower shaft of the sewing machine. The drive shaft body is arranged in the large shuttle and it is staggered about 180 degrees from the middle shuttle (please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 (210X297 mm) ) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 446 7 8 ϋ 4i) l9pi1'.doc / 006 A7 _____B7_ V. Description of the invention (3) Positions on both sides of the drive shaft body in the circumferential direction can press against the side wall of the middle shuttle State at both ends in the circumferential direction. The bobbin case includes a side wall provided with a bobbin thread adjusting coil spring, and an end wall vertically connected to one end in the axial direction of the side wall and provided with a spring latch device. When the bobbin case is rolled up and taken into the storage state, the bobbin case is fixed on the plunger of the center disk by a spring latch device, so that the bobbin case can rotate freely in the center disk. The lower thread contained in the bobbin case is led out by the bobbin, inserted between the side wall of the bobbin case and the bobbin thread adjustment spring, and guided upward through the other end of the bobbin axis direction. The working method of the semi-slewing hook thread device is that the transmission shaft is driven and shaken like a half-turn around the rotation axis, and the middle shuttle is pressed by the transmission shaft. The tip is shaken and driven back and forth to the preset upper and lower positions. , The upper thread on the bur which is driven back and forth in synchronization with the middle shuttle's shaking is captured by the tip, so that the upper loop is expanded along the outer surface of the middle shuttle to bypass the surroundings, and then the upper loop is passed around the bobbin case. Cross the thread, and then hang the upper thread ± the lower thread drawn from the spool. In this state, the upper thread is pulled up by the lifting action of the scale (not shown) to achieve the operation of sewing the object to be sewn on the platform. . The conventional technique of the vertical full-hook hooking device is to form a bobbin outside the tip to surround the upper thread around the inner bobbin provided with the bobbin case, and then the inner bobbin to cross the thread. When the upper thread is caught and the upper loop is moved outside the bobbin, it is fixed to the lower shaft of the sewing machine and cannot pass through the upper loop. The upper thread loop is wound on the line dividing part that becomes the upstream end of the shuttle rotation direction outside the rail, and the upper and lower thread portions of the upper thread loop are respectively divided into the bottom of the inner shuttle and the open end, and cross the thread across the inner shuttle. . 6 This paper is applicable to Chinese National Su _ (CNS) Α4 · _ (2) ^ x297 gram) ~ (Please read the precautions on the back before filling this page)

446780 4yi9pir.doc / 006 A 7 B7 V. Description of the invention (4) (Please read the precautions on the back before filling this page) When the lower end of the upper thread loop bypasses the lower end of the inner bobbin, it will self-form after being captured by the tip. The open end of the outer part of the tip extends upwards at the upper loop line, and extends toward the bottom of the inner hook. After being captured by the tip, it extends upward from the bottom of the shuttle beyond the portion forming the tip, crossing the line across the inner Shuttle. It is impossible to make the above-mentioned moving outer bobbin pass the vertical full-hook hook device inside the bobbin. When the inner bobbin crosses, the bobbin ring is staggered above the inner bobbin, and it is easy to produce the twist of the bobbin. The conventional technique of the semi-revolving hook threading device is to make the bobbin case cross the thread by forming a bobbin in the tip to wind the bobbin case. The bobbin ′, which catches the upper thread and moves the upper loop, is not connected to the drive shaft fixed to the lower shaft of the sewing machine, so it can pass through the upper loop. The upper thread loop is a two-wire part extending up and down from the upper thread loop, which is divided into the bottom and the open end of the middle shuttle to form a cross thread. The cross thread passes through the upper loop of the middle shuttle, and the bobbin case also passes through the upper loop. When the consumer ’s cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed the above-mentioned semi-turn hook-and-thread device, the lower end of the loop passed around the lower end of the bobbin case. The loop line portion extends toward the open end of the middle shuttle, and after being captured by the tip, the upper loop line portion extends upward from the bottom of the shuttle in the portion forming the tip, and extends toward the open end of the middle shuttle. Therefore, the upper thread loop does not stagger in the central part and expands into a slightly U-shape, crossing the thread across the bobbin and bobbin case. It is formed so that the bobbin can move through the semi-rotary hooking device in the upper loop while the upper thread is moving. Because the vertical full-return hooking device and the upper loop are not staggered as described above, it is not twisted with the upper thread. In the semi-rotary container that can solve the problem of the vertical full-turn hooking device, the transmission shaft of the shuttle is driven by the semi-rotation. Therefore, the transmission shaft is at 1 7 This paper is in accordance with China National Standard (CNS) A4 (210X297 Gongchu :) 44678u 4iJI9pir.d〇c / a〇6 A7 ___ B7____ printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (j :) The rotation of the cycle must be suspended for 2 degrees, which cannot improve the overall Turning speed. The object of the present invention is to provide an all-slewing hooking device, which can hang an upper thread on a lower thread without twisting, and can increase the rotation speed. According to the above and other objects of the present invention, for example, the scope of patent application item 1. proposes an all-round hook-and-thread device including a large shuttle fixed to a sewing machine body and forming a groove along a circumferential direction of an inner wall portion; The tip of the upper thread on the bur driven back and forth, and a rail is formed along the peripheral direction of the outer wall, and the rail is embedded in the groove to allow it to freely rotate in the shuttle of the large shuttle; ... up and down with the bur The movement synchronization is continuously driven by rotation along a predetermined rotation direction, and the transmission shaft is pressed against the middle shuttle and the middle shuttle is rotated by the rotation; and a bobbin case which is installed on the middle shuttle and is freely disengageable is accommodated in the lower line. In the full-swing hook thread device of the present invention, the tip is captured in the middle of the bobbin, which is mounted on the big bobbin and is in a freely rotatable state. It is pressed by the transmission shaft and synchronized with the vertical movement of the bur to rotate along a predetermined rotation. The direction is continuously rotated, and a bobbin case for accommodating the lower thread is provided in the middle shuttle. The middle bobbin is turned under the state that the bobbin case is pulled out from the bobbin case, and the upper line is captured by the tip. The upper ring expands along the outer surface of the middle bobbin, so that the bobbin case can be bypassed by the upper bobbin, and the bobbin can be threaded across the bobbin case. 'Hang the upper thread around the lower thread to form a seam. Capture the line and expand the line while moving the bobbin on the line while looping. Due to the rotation of the individually formed drive shaft, the bobbin can also be passed over the bobbin when the line crosses the bobbin. Therefore, the upper loop will not be staggered in the middle. It can be expanded into a slightly U-shape, and can be wound on the lower loop without twisting the upper thread. The driving shaft is continuously driven and driven in the predetermined direction of rotation, and the middle shuttle disc is continuously rotated accordingly. Because the driving shaft and the middle shuttle 3, the paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 cm) (谙(Read the notes on the back before filling out this page)

4 4β doc / 006 ^ B7 发明. Description of the Invention (g) The disc will not stop in the middle of any cycle, so it can keep the full-circle hooking device running at high speed. According to the above and other purposes of the present invention, for example, according to the second item of the scope of patent application, the middle shuttle is provided with a reed fixed near the base, and the transmission shaft can press the free end or free of the reed. Near the end. Regarding the rotation of the shuttle in the present invention, the transmission shaft is pressed against the free end or near the free end of the reed of the middle shuttle, and the revolving force of the transmission shaft is transmitted to the middle shuttle by the reed. Therefore, when the drive shaft is continuously rotated and driven, the reed periodically repeats the cyclic elastic deformation movement and recovers the elastic deformation movement, so that the drive shaft and the reed free end or near the free end are in periodic contact and separation. When the upper thread crosses the middle shuttle, and the transmission shaft is separated from the free end or the free end of the reed, the upper thread can bypass the clearance between the transmission shaft and the free end or the free end of the reed. Therefore, the upper loop can be prevented from being caught by the middle shuttle and the drive shaft when the upper loop is crossed, so that the upper loop can smoothly cross the thread. In case the upper thread is clamped by the middle shuttle or the drive shaft, the upper thread will deform the reed spring and pass between the drive shaft and the reed. Therefore, the online will not be disconnected. According to the above and other objects of the present invention, if the third item of the scope of patent application is constituted according to the first item of scope of patent application, the rotation axis of the transmission shaft is eccentric to the rotation axis of the center shuttle. In the present invention, due to the eccentricity of the transmission shaft and the rotation axis of the middle shuttle, the position of the transmission shaft against the middle shuttle is changed in the direction of the radius of the middle shuttle, and the rotation torque transmitted from the transmission shaft to the middle shuttle also changes periodically. . The lower thread loop can bypass the drive shaft and the middle shuttle when the turning torque is small. 9 The size of this paper is appropriate. Use China National Standards (CNS) Α4 size (2Ι0 × 297 mm) (read the note on the back and read this page before filling in this page) -Ύ, order Printed by the Intellectual Property Bureau Employees Consumer Cooperatives

4 4 6 7 8 U 4mPif'dw A7 B7 V. Description of the invention (^) (Please read the notes on the back before filling this page) According to the above and other purposes of the invention, such as the 4th scope of the patent application, according to the patent application In the structure of the first item of the range, the large shuttle faces the groove in the axial direction to form a protruding convex portion. The convex part of the middle shuttle rail is protruded in the axial direction of the middle shuttle, and is fixed to the convex part of the large shuttle from the outer side in the radial direction of the middle shuttle. The convex portion formed on the groove facing the large shuttle is fixed to the convex portion formed on the rail of the middle shuttle, and the middle shuttle is guided in the circumferential direction. It can avoid the radial vibration when the middle shuttle is rotating, and keep the rotation stable. According to the above and other purposes of the present invention, if the fifth item in the patent application scope is formed according to any one of the first patent application scope to the fourth patent application scope, the side rails of the middle shuttle are provided with, formed in The bobbin has a side wall forming a rail in the needle drop groove in the insertion area of the needle. When the wire loop is guided to the side wall when it is captured by the tip, it moves around the middle bobbin while being enlarged to make the middle bobbin and the bobbin case. Can easily cross the line. Needle drop grooves that can be inserted into the bur are formed on the side wall to avoid interference between the bur and the center shuttle. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs to make the above and other objects, features, and advantages of the present invention more comprehensible, the preferred embodiments are described below in detail with the accompanying drawings, as follows: Brief description of the drawings: FIG. 1 is a schematic cross-sectional view of the full-return hook-and-thread device 1 according to an embodiment of the present invention. FIG. 2 is a front view of the full-swing hook-and-thread device 1. FIG. 3 is a front view of the middle shuttle 3. This paper is scaled to the Chinese National Standard (CMS) A4 specification (2I0X297 mm) 446780 I 9pi1 '. (Ioc / 0i) 6 A7 B7 V. Description of the invention (y) Figure 4 shows the middle shuttle disk 3 Side view. FIG. 5 is a plan view of the middle shuttle 3. (Please read the precautions on the back before filling this page) Figure 6 shows the rear view of the middle shuttle 3. Figure 7 shows a simplified horizontal sectional view of the large shuttle 2 and the middle shuttle 3. Fig. 8 shows a pattern related to the contact and separation of the transmission shaft 4 and the reed 35. 9 is not an enlarged cross-sectional view of the part I X in FIG. 7. FIG. 10 shows a simplified cross-sectional view of the full-return hook device 1a, the large shuttle 2a, and the middle shuttle 3a according to another embodiment of the present invention. Description of the drawing marks: 1: Full-turn hook threading device 2: Big bobbin 3: Middle bobbin 4: Transmission shaft 5: Bobbin case 6: Spool printed by the staff consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 7: Groove 8: Needle 9: On-line 10: Tip 11. Rail 12: Off-line This paper size is applicable to China National Standard (CNS) A4 (210X297 mm) ^ 46780 I 9pi1 \ doc / 006 A7 B7 V. Description of the invention (7) 14 15 17 18 19 20 21 22 25 26 28 29 32 35 36 37 38

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs '40;-, 42, 43, 44 44 45 46 in the main body of the shuttle body One side of the side wall of the hook is near the opening, and one of the side walls of the needle-groove groove forms a tip. The inner wall part of the outer wall part is fixed to the groove spring reed. The fixed end reed is one of the free end side walls. The recess is pressed against the drive shaft. Drive shaft base 12 (Please read the precautions on the back before filling this page)

This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 44 ^ 7 8 Ο ^^ I9pir.doc / 0f) 6 V. Description of the invention (/ 〇) 47 : Bobbin side wall 48: spring latch device 49-one.: Bobbin case 1¾ 50, 50 • 'spring latch 51' · operating piece 52: bobbin case arm tip 53: bobbin case bottom end 55: insertion hole 60: shuttle Disk side wall 61: shuttle bottom wall 62: through hole 70: movement path 72: convex portion 73: convex portion 74: recess 75: outer side 76: recess 77 〃 inner side 80: imaginary line A: arrow B: Arrow L1: Axis L2: Axis L3: Axis (please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 446 7 8 0 4 ^ 19pii, d oc / 006 A7 ___B7 S 1 Area S 2 Area S3 Area S4 Area S 5 Area S 6 Area S 7 Area T 1 Gap T2 Space T3 Space Θ 1 Angle Θ2 Angle IX Part la Full-turn hook line installation 2 3 Large shuttle 3a, shuttle 7a, groove 11a, rails 5. Description of the invention (/ / ) (Please read the notes on the back before filling in this page)

1T Ψ Economy. Printed by Xing Intellectual Property Bureau Employee Consumption Cooperatives. Example hereinafter Please refer to the illustration and the description of the preferred embodiment of the present invention. Please refer to Figure 1 and Figure 2. FIG. 丨 shows a cross-sectional view of an all-sleeve hook-and-thread device according to an embodiment of the present invention, and FIG. 2 shows a front view of the all-sleeve hook-and-thread device according to FIG. 1 on the left. The reversing hook thread device 1 is equipped with a large bobbin 2, a middle bobbin 3, a transmission shaft 4, a bobbin case 5, and a bobbin. The paper size is applicable to the Chinese National Cricket (CNS) M specification (210 × 297). A7 B7 Wisdom of the Ministry of Economic Affairs Printed by the Consumer Cooperative of the Property Bureau, 4467 8 〇4g 1 ^ pif ', doc / 006 V. Description of the Invention (fZ) 6, The full-return hook-and-thread device 1 is arranged under the press plate of the sewing machine platform (not shown). The large shuttle 2 is fixed to the body of the sewing machine, and a groove 7 is formed in the circumferential direction of the inner wall portion. The middle shuttle 3 has a tip 10 ′ that captures the upper thread 9 on the bur 8 driven up and down, and forms a rail 11 in the circumferential direction of the outer wall.于 大 shuttle 2. The transmission shaft 4 'is continuously rotated in a predetermined rotation direction A in synchronization with the vertical movement of the bur 8 and simultaneously presses the middle shuttle 3 to rotate. The bobbin 6 is wound into the bobbin case 5 with the lower thread 12 wound therein, so that the lower thread 12 is received in the bobbin case 5. The axis L1 of the large shuttle 2 is perpendicular to the axis L2 of the moving path of the vertical bur 8 and is fixedly arranged in a horizontal state. The groove 7 extends in the circumferential direction around the axis L1 and opens inward in the radial direction. The large shuttle 2 includes a large shuttle body 14 and a middle shuttle fixing piece i5 fixed in the large shuttle body 14 so as to be freely disengageable. The middle shuttle fixing piece 15 can be removed by removing the middle shuttle fixing piece 15 from the large shuttle body 14. The groove 7 is opened toward one end of the square line of the axis. Please refer to Figures 3 to 6. FIG. 3 shows a front view of the shuttle 3 according to the present invention, FIG. 4 shows a side view of the shuttle 3 according to the right side of FIG. 3, and FIG. 5 shows a top view according to FIG. 3 Seen in plan view, FIG. 6 shows the back view as seen from the back of FIG. 3. Please refer to Figure 1 and Figure 2 at the same time, the middle shuttle 3 is aligned with the axis L 1 of the large shuttle 2 (hereinafter, the axis of the middle shuttle 3 is also represented by the symbol L 1) and installed on the large shuttle The disk 2 and the rail 11 extend around the axis L 1 in the circumferential direction and protrude outward in the radial direction. The middle shuttle 3 includes a side wall 17 forming a rail 11 along the outer wall portion, and a bottom wall 18 formed integrally along an imaginary plane perpendicular to the axis L 1 and connected to one end in the axial direction of the side wall 17. (Please read the notes on the back before filling out this page)

This paper size applies to China National Standard (CNS) A4 (210X297 mm)

4 4 6 7 8 0 AV I 9pif, doc / 006 B7 V. Description of the invention (3) The center of the bottom wall 18 is along the axis L1 toward the other end of the side wall 17 in the direction of the axis 19, and the opening is in the bottom wall. The other end. The side wall 17 extends in the circumferential direction to the entire circumference, and includes a side wall portion 20 from the center of the square line of the axis to the bottom wall 18, and a wall portion 21 from the center of the line of the axis to the open end. The side wall of the middle shuttle is adjacent to the bottom wall portion 20 and is connected to the bottom wall 18. Middle. The bottom wall portion 20 of the side wall of the shuttle is formed in a cylindrical shape in the vicinity of the tip 1Q. The areas S 1 and S 2 are cylindrical. Larger and truncated cone. In the area S 1 extending along the side of the bottom wall portion 20 of the side wall of the shuttle disk toward the sides in the circumferential direction, the outer wall of the bottom wall portion 18 forms a truncated cone outer wall with areas other than S 1 and S 2 The same outer wall, as seen from the back of shuttle 3 in area S 1, is located in the counterclockwise direction B upstream of side wall bottom wall portion 20 area S 1 and is connected to side wall bottom wall portion 20 and area S 2 to form a bottom wall adjacent to area S 1 The outer wall of part 18 is the same as the frustum of the cone, and it is close to the outer wall of the open end of the middle shuttle 3. As the direction shown by the arrow B above is closer to the upstream part, the closer it is to the outer wall of the truncated cone in areas other than S 1, S 2. The cylindrical areas SI and S2 are centered in the circumferential direction from the position where the tip 10 is formed toward a position offset from the upstream of the arrow B, in a range of about 60 degrees. For example, at least the bottom wall portion 20 of the above-mentioned side wall bottom portion 20 extends smoothly in the circumferential direction to the entire circumference. The farther the outer side is from the open end, the closer to the bottom wall 18, the smaller the radius becomes a truncated cone. The center shuttle side wall is closer to the opening portion 21 on the opposite side to the bottom wall portion 20 of the center shuttle side wall bottom portion 20, and the farther away from the bottom wall 18 in the axial direction approaches the open end, the smaller the radius becomes a truncated cone. Regarding the circumferential direction, the size of the sharp paper is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling out this page) Order printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Consumer Cooperatives A 7 4 6 7 8 〇I * · &ρ; ρ i Γ.doc / {JO6 B7 V. Description of the invention (zY) (Please read the precautions on the back before filling this page) End 10 is the area S 3 extending to both sides in the circumferential direction Among them, the needle drop groove 22 penetrating in the radial direction is formed near the side wall and the bottom wall portion 20. The area S 3 forming the needle drop groove 22 seen from the front is about 220 degrees from the center in the circumferential direction from the position where the tip 10 is formed to the position where the middle shuttle 3 is staggered along the clockwise arrow B downstream. For example, at least the opening portion of the side wall near the opening portion 21 smoothly extends to the entire circumference in the circumferential direction, and the farther the outer side surface is away from the bottom wall 18, the more the radius of the opening portion decreases into a truncated cone. The side wall 17 has a shape such that each of the side wall portions 20 and 21 protrudes outward in the radial direction from the central portion in the axial direction. A region S4 near the position where the tip 10 is formed in the circumferential direction of the rail 11 is notched, and extends continuously from the remaining regions S5 to S7 in the circumferential direction. The notch region S4 of the rail 11 is about 30 degrees around the position where the tip 10 is formed in the circumferential direction. The consumer property cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints the rails 11. The cross-section shape is slightly rectangular when cut on an imaginary plane including the axis L1. The opening of the shuttle 3 protrudes. The width of the outer wall portion 29 in the axial direction is that the widths of the regions S 5 and S 6 near the two ends in the circumferential direction are smaller than the widths of the peripheral middle regions S 7 between the aforementioned regions S 5 and S 6. The protruding amount of the inner wall portion 28 is smaller than the protruding amount of the region S 7. The notch regions S 4 including the rails and the smaller regions S 5 and S 6 of the outer wall portion 29 are almost the same as the region S 3 where the needle drop groove 22 is formed in the circumferential direction. The outer surface of the outer wall portion 29 forming the outer surface of the rail 11 has a cylindrical surface, and the portions 28, 29 forming the bottom wall 18 of the rail 11 have a bottom wall side surface that is perpendicular to the axis L1. The paper that constitutes the opening of the inner shuttle 3 of the rail L1 is also applicable to the Chinese national standard (CNS > A4 specification (210X297 mm) Α7 Β7 44678 Ο 4 QIV ρ ί Γ. Cl ο ο / 0 U 6 V. Invention Note (/ S) The inner wall portion 28 of the inner shuttle is opened 3 mouths, and the sides S5, S6 are inclined at the ends of S7, and the areas other than this end are formed perpendicular to the axis L1. The middle hook side wall is adjacent to the opening portion 21 and the needle-receiving groove 22 faces one of the side walls 18-and is formed on the same surface as the side of the opening of the hook in each area s 5 and S 6 of the outer wall portion 29 of the rail 11. The side wall of the notch area s 4 of the strip 11 is formed into a cylindrical shape by the opening part 21 and the bottom wall 18. Therefore, in the notch area S 4 of the rail 11, the outer sides of the peripheral walls 20 and 21 of the middle portion at both ends of the square line of the axis are formed on the axis L. 1 is on the same cylindrical surface. On the side wall 17, a circumferential end 25 of the rail 11 forming the downstream end in the direction of arrow B protrudes in the direction of arrow B, and is integrated with the portion 26 forming the tip, and the tip 10 is formed at the forming tip Part 26. The tip forming part 26 also has the function of a rail. On the tip portion 26, a thin tip is formed in the direction of the arrow B and the axis direction of the middle shuttle 3 from the bottom wall 18 toward the open end of the middle shuttle. The outer side of the tip forming portion 26 and the outer side of the rail 11 are formed on The same cylindrical surface; the inner wall portion of the plane at one end of the opening portion of the middle shuttle 3 and the inner wall portion 28 of the rail U are formed on the same plane; the outer wall portion is in the region S 5 and S 6 near the end portion and the outer wall portion 29 of the rail 11 Formed on the same plane, the front end is formed on the same plane as the outer wall portion 29 of the rail 11 in the region S 7; the plane at the bottom end is formed on the same plane at the end and one end of the bottom wall of the rail 11, and at the front As the part approaches the direction of the arrow B, it is inclined from the bottom wall 18 to the opening of the middle shuttle. The tip 10 is formed at the end of the tip forming part 26, and the tip 10 is located in the area S 7 containing the outer wall part 29 of the rail 11. The plain paper size at the end of the opening of the shuttle is applicable to the national standard (CNS) Α4 (210X297 mm) (please read the note on the back before filling in this page). Member of Intellectual Property Bureau Printed by X Consumer Cooperatives 44 6 7 8 〇I y pi rd〇 (; / iJ0 6 _____B7____ V. Description of the invention (/ ip) on the circle of intersection with the cylindrical surface containing the outer side of the rail 11. On the middle shuttle 3 is provided with a reed 35, which is provided in a circumferentially notched rail 丨 1 a recess 40 between the two ends 25 and 38 in the circumferential direction. The reed 35 is a slightly L-shaped 'reed fixed end 36 is circumferentially It is arranged in the direction of direction and is fixed by screws or the like. It is formed in the outer wall portion of the cylindrical side wall Π of the rail cutout area S4, and the free end 37 of the ring piece is disposed across the gap T1. The side wall recess 40 and the upstream end 5 in the direction of the arrow B opposite to the direction of the arrow B, therefore, the spring 35 can be deformed in the direction of the arrow B. According to the arrangement method of the reeds 35, when the middle shuttle 3 rotates around the axis L1, it can be prevented from protruding from the rail moving path outside the axis direction or the radial direction. The bottom wall 18 is a circular plate, and is connected to the side wall and the bottom wall portion 20 as a whole in the circumferential direction. The peg 19 is connected to the bottom wall 18 as a whole, and stands vertically with the bottom wall 18. The stud 19 is a substantially cylindrical body, and a fixing groove 32 is provided at the end portion along the circumferential direction. The side wall 17 of the middle shuttle 3, the bottom wall 18, and the stud 19 are connected to form a whole. The reed 35 is formed of reed steel or the like. Please refer to FIG. 7, which shows a simplified horizontal sectional view of the large shuttle 2 and the middle shuttle 3 according to the present invention. The large shuttle 2 includes a large shuttle body 14, a side wall 60, and a bottom wall 61 connected to one end in the axial direction of the side wall 60. A through hole 62 is formed in the bottom portion 61 of the large shuttle through the axial direction. The middle shuttle fixing piece 15 is ring-shaped, and is mounted on the side wall 60 of the main shuttle body 15 by screws or the like, and can be freely clutched. The large bobbin 2 is opened in a direction opposite to the bottom 61. The method of fitting the middle shuttle 3 and the second shuttle 2 is to remove the middle shuttle fixing piece 15 from the main shuttle body Η so that the opening portion of the main shuttle of the groove 7 is opened in the axial direction, and then the rails are opened. 1 丨 Insert groove 7, and then fix the middle shuttle disk. The paper size is applicable to China National Standards (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)

A7 B7 446780 ^ 9iypii'.doc / 006 V. Description of the invention (q) 15 is installed on the large shuttle body 14. After the bottom wall 18 ′ of the middle shuttle 3 is disposed near the bottom 61 of the large shuttle body 14, the rail 11 is guided to the portion facing the groove 7, and is free to rotate around the axis L1. Please refer to FIG. 1, FIG. 2 and FIG. 7 at the same time, the transmission shaft 4 is provided. The transmission shaft 4 is provided in the large shuttle 2 and has a transmission shaft body 43 having a pressing portion 42 against the middle shuttle 3, and It is integral with the transmission shaft and is fixed to the cylindrical hub 45 in the circumferential direction of the lower shaft 44 of the sewing machine. The hub 45 is arranged on the back of the middle shuttle 3, and is fixed to the lower shaft 44 which is inserted into the large shuttle main body U through-hole 62 and extends to the vicinity of the middle shuttle 3. The transmission shaft body 43 is provided in a slightly L-shape, with the hub 45 near the center of the shuttle 3-the end facing outward in the radial direction, the base 46 extending along the bottom wall 18 of the center of the shuttle 3, and the outer end of the center 46 toward the center shuttle The open end of the disk 3 is curved and extends to the pressing portion 42 in the axial direction of the open end of the middle shuttle disk 3. The end portion of the pressing portion 42 is fitted into the concave portion 40 of the middle shuttle 3. The drive shaft body 43 abuts the pressing portion 42 between the cylindrical side wall 17 of the middle shuttle 3 and between the base 43 and the bottom wall 18 of the middle shuttle 3, and between the hub 45 and the bottom wall 18 of the middle shuttle 3. Both are formed at intervals D2 and T3 which are thicker than the upper line 9 (outer diameter). The transmission shaft 4 is continuously rotated in the same direction A around the same axis L3 because the lower shaft 45 of the sewing machine is continuously rotated around the axis L3 in the clockwise direction of the arrow A seen from the front. When the propeller shaft 4 is driven in rotation, the end of the abutment portion 42 of the propeller shaft 43 is also pressed in the direction of the arrow A of the reed 35 of the center shuttle 3, so that the center shuttle 3 is almost in the same direction as the direction A of the pivot of the propeller 4 turn around. The bobbin case 5 has an opening in a direction opposite to the bottom wall 49, and is provided with a side wall 47 provided with an unillustrated wire shell wire adjusting spring, and a square line with the axis 47 of the side wall 20. This paper applies Chinese National Standard (CNS) 8-4 Specifications (2l0X29? Mm > (Please read the precautions on the back before filling in this page)

I Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 446780 4 9 I 9p i i '. Doc / 00 6 A7 B7 V. Description of the invention (/?) One end is vertically connected to the bottom wall 49 provided with a spring flash device 48. The spring flashing device 48 can move freely in a linear direction with a diameter, and a spring is attached to one end in the linear direction of the diameter, and is provided with a spring latch 50 that can be displaced by counteracting the spring force with the operation piece 5 丨. A part of 50 is inserted into the fixing groove 32 of the bolt 19, and the spring bolt 50 can be fixed on the bolt 19. Align the axis of the bobbin case 5 with the axis L1 of the middle bobbin 3, and arrange the bottom wall 49 at the open end of the middle bobbin, so that the bobbin case 5 can be installed in the middle bobbin 3 and can freely rotate on the axis L of the middle bobbin 3 丨around. The bobbin case 5 extends along the plane from the end wall 49 to the end wall 49, and the tip portion 52 is outside the side wall π of the middle bobbin 3, and the fixed end 53 bent toward the open end of the bobbin case 5 is integrated. The method for determining the position of the bobbin case 5 is to insert the fixed end 53 into the large bobbin under the shape of the middle of the bobbin 3, and the non-illustrated anti-rotation recess of the bobbin fixing piece 15 prevents the With the rotation of the middle shuttle 3 around the axis L1, the fixed end 53 extends upward. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) The bobbin case 5 can be accommodated 'installed in the bobbin 6 and can be rolled down by the bobbin 6 and the bobbin case 5 When the bobbin 6 is installed and the lower line 12 is accommodated, the middle bobbin 3 is installed. The lower line 12 is accommodated in the bobbin case 5 and is led out by the bobbin 6 and inserted between the bobbin case side wall 47 and the adjusting spring wall. The other end in the axial direction of the middle shuttle 3 is inserted through the insertion hole 55 formed at the tip 52 of the fixed end 53 of the bobbin case wall, and guided through the pin hole formed in the pressing plate. When starting the sewing operation, the transmission shaft 4 is lowered. The rotation of the shaft 44 is driven to rotate in the direction of arrow A around the axis L3, while the middle shuttle 3 is rotated in the direction of arrow B around the axis L1, because the paper dimensions linked to the lower shaft 44 are in accordance with Chinese national standards (CNS ) A4 size (210X2.97 mm) 446 7 8 0 11 ^) pi r.dnc / 〇〇〇A7 B7 V. Description of the invention (α) The rotation of the upper shaft is shown in the figure, so that the bur 8 and the middle shuttle 3 The synchronous rotation is driven back and forth along the axis L 2. The bur 8 has an insertion hole 66 through which the upper thread 9 can be inserted. Therefore, when the bur 8 driven up and down is arranged near the lowermost position, the upper thread 9 is taken to the moving path of the tip 10. The middle shuttle 3 and the bur 8 are 'when the bur 8 moves slightly upward after passing the bottom, it passes through a predetermined position near the movement path of the tip 10, and then the upper line 9 of the bur 8 is captured by the tip at this time. . The upper line 9 'captured by the tip 10 is guided to the center B along the turning direction B of the middle shuttle 3 to form an upper line loop, and then the ring of the upper line 9 is guided to the side wall 17 of the middle shuttle 3, and moves toward the center while expanding. Around the bobbin 3, the second thread portion of the upper loop is extended up and down to bypass the bottom of the middle shuttle 3 and the open end of the middle shuttle 3, respectively. From the front, when the tip 10 reaches the vicinity of the lowest point, the upper line 9 passes through the right side of the sharp imaginary plane including the axes L1 and L2, and slides across the outer surface of the middle shuttle 3 from the portion 26 forming the tip. Below. Seen from the front, when the tip 10 reaches the vicinity of the lowest point, the upper line 9 is directed upward by the left side of the vertical imaginary plane including the axes L 1 and L 2 by a scale without an illustration. As mentioned above, the loop of the upper thread 9 is formed by crossing the bobbin case 3 with the bobbin case 5 installed in the middle bobbin 3, and the upper thread 9 is wound on the lower thread 12 drawn from the bobbin case 5 to form a loop. seam. When the middle shuttle 3 is turned to the vicinity of the movement path of the bur 8, the upper thread 9 will be lifted again by the bur 8 to repeat the above-mentioned actions to form a continuous seam, thereby achieving the operation of sewing the object to be sewn on the platform. . In the slewing hook device 1 of the present invention, 'captures the upper thread 9 and moves the upper thread 9 while moving the middle shuttle 3', because it is formed by the individual 22. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 public money) (Please read the notes on the back before filling out this page) -a Printed by the Consumers and Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 446780! 9pir.d〇c / lH) 6 A7 B7 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by Consumer Cooperatives V. Invention Description (). ） The moving shaft 4 rotates ’so that when the upper thread 9 crosses the bobbin case 5, the middle shuttle 3 can also cross the thread. Therefore, the loop of the upper line 9 will not be staggered on the way. It can be expanded into a slightly ^^ shape to cross the bobbin case 5 and hang the upper line 9 on the lower line 2 without twisting. The drive shaft 4 is continuously driven and driven in a predetermined turning direction a, and the middle shuttle 3 is also connected | Buy for rotation, because the drive shaft 4 and the middle shuttle 3 will not stop in any period, so it can make full rotation The thread hooking device 1 maintains high-speed operation and improves the sewing speed. The full-return threading device 1 'forms a needle drop groove 22 on the side wall 17 against the opening 21' Because the upper thread 9 is brought to the vicinity of the movement path of the tip 10, so that the needle 8 and the middle shuttle are avoided when the needle is moved downward The interference of the side wall 17 of the disc 3. A detailed description of the embodiment of the present invention is that when the bur 8 moves slightly upward after passing the bottom, the tip 10 also passes near the movement path of the bur 8 at the same time because the end of the bur 8 passes through the imaginary line as shown in FIG. The moving path 70 shown with respect to the middle shuttle 3, and the needle drop groove 22 is formed as described in S 3 above, so that the movement path 70 is not staggered with the side portion of the middle shuttle near the opening □ 21, so the middle shuttle can be avoided. The 3 and the bur 8 are mutually dry. And because the bur 8 moves up and down adjacent to the rail 11, in the area S 4 to S 6 that is almost the same as the area S3 where the needle drop groove 22 is formed, the non-rail 11 has a gap, that is, the outer wall portion 29 of the rail. The narrow width prevents interference between the middle shuttle 3 and the bur 8. Although the open end of the shuttle in the outer wall end portion 'of the tip-forming portion 26 protrudes toward the open end like S7, the tip-forming portion 26 does not interact with the bur 8 because it is formed in the recess of the bur 8. put one's oar in. In the embodiment of the present invention, the side wall 17 of the shuttle 3 is an axis 23 and the paper size is appropriate. Use Chinese National Standard (CNS) M specification (210 > < 297 mm) (Please read the precautions on the back before (Fill in this page)

A7 B7 4 4 6 7 8 β V. Description of the invention U /) The center part protrudes outside the radial direction than the remaining part, and it has a truncated cone with the radius decreasing as it moves away from the center part of the axis direction toward the ends in the axis direction. Each of the middle shuttle side wall is closer to the bottom wall portion 20 and the middle shuttle side wall is closer to the opening portion 21, and the closer to the two ends in the axial direction, the smaller the radius is, and the outer wall surface is a truncated cone. And the tip-forming portion 26 formed by the tip 10 that captures the upper line 9 is formed at the central portion of the axis protruding outward in the radial direction, and is captured by the tip 10 to the ring of the upper line 9. The second thread section is smoothly led to the bottom wall 18 and the open end of the middle shuttle to be enlarged. Therefore, the loop of the upper thread 9 can smoothly pass the thread across the middle shuttle 3. And each middle shuttle side wall is close to the bottom wall part 20, and the middle shuttle side wall is close to the opening part 21 at least at the two ends of the side wall 17 in the axial direction, and extends continuously in the circumferential direction. Avoid hooking when the loop of the upper thread 9 crosses the middle shuttle 3. And with respect to the axis L1, it is formed at the bottom wall portion 20 of the middle shuttle side wall and the opening portion 21 of the middle shuttle side wall. The outer wall surface of the truncated cone has an angle of θι and Θ2 degrees, for example, about 45 degrees to 48. At the same angle, the bottom line portion 20 of the middle shuttle disk side and the opening portion 21 of the middle shuttle disk side guide the upper f-line portion of the upper line 9 relative to the middle shuttle 3 axis bottom position on the middle shuttle. The open end position can be bypassed at almost the same time to complete the crossover. The full-swing hooking device 1 is because the transmission shaft 4 presses the free end 37 of the spring 35 and rotates the middle shuttle 3. Therefore, when the transmission shaft 4 is driven back continuously to drive the middle shuttle 3 to turn, the reed 35 will also repeat the turning elastic deformation movement and restore the elastic deformation movement, so that the transmission shaft 4 and the spring% free end 37 are as shown in FIG. 8. As shown, make a full-circle hook-and-thread device 丨 Cycle ^ This paper size is suitable for financial use '5 ^ Turn (CNS) ~ Secret (2 Shu 297 Gong ^^---- (Please read the precautions on the back before filling this page ) .X. Order printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 44678 0 1 I ^ pi t'.d〇c / {) 06 A7 B7 V. Description of the invention (1 of) t 1 When the movement, have a separation time of At the contact time t 2, periodic contact and separation occur. When the loop of the upper thread 9 crosses the middle shuttle 3 and the transmission shaft 4 is separated from the free end 37 of the reed 35, the loop of the upper thread 9 can pass through the gap formed between the transmission shaft 4 and the free end 37 of the reed 35. Therefore, it can be avoided that when the loop of the upper thread 9 crosses the middle shuttle 3, the upper thread 9 is sandwiched by the middle shuttle 3 and the transmission shaft 4 ', so that the loop of the upper thread 9 smoothly crosses the thread. Therefore, when the upper thread 9 is clamped by the middle shuttle 3 or the transmission shaft 4, the upper thread 9 will deform the spring leaf 35 and pass the transmission shaft 4 to the middle of the spring leaf 35. Therefore, the upper line 9 will not be disconnected. And by selecting the spring constant of the reed 35, the time t 2 at which the end portion of the pressing portion 42 of the transmission shaft 4 contacts the free end 37 of the reed 35 is indirectly selected. The rotation axis L 3 of the transmission shaft 4 in the full-swing hook thread device 1 is eccentric to the rotation axis L 1 of the middle shuttle 3. In the embodiment of the present invention, the axis L3 seen from the front is only slightly eccentric to the diagonally lower right side of the axis L1. Due to the eccentricity of the above-mentioned axes L 1 and L 3, the position of the transmission shaft 4 against the middle shuttle 3 is also changed in the radial direction of the middle shuttle 3, and the rotation torque of the transmission shaft 4 to the middle shuttle 3 also occurs. Change periodically. Therefore, when the rotation torque is small, the ring can be passed through the transmission shaft to the middle of the middle shuttle. Furthermore, by selecting the eccentric direction and eccentricity of each axis L1, L3, and indirectly selecting the full-revolution thread-enclosing device 1 in a 1-cycle motion, the drive shaft 4 pressing portion 42 and the free end 37 of the middle shuttle 3 Moment of separation. Therefore, when the upper wire 9 is pulled up by the balance to pass between the transmission shaft 4 and the reed 35, the transmission shaft 4 pressing portion 42 and the free end 37 of the reed 35 can be surely separated. Because the shuttle 3 in the full-turn hook threading device 1 has a peripheral wall forming the rail 11 and is captured by the tip 10 and the ring of the upper line 9 is guided by the side wall 25 ^ Zhang scale applies to Chinese national standards (CNS ^ A4 specifications ( 210X297mm > — '' (Please read the note on the back before filling in this page) Order printed by the Intellectual Property Bureau's Consumer Cooperatives 44 6 7yeji〇d 〇c / 0 0 6 Α7 Β7 V. Description of the invention (≫ 3 ») (Please read the precautions on the back before filling in this page) And move around the middle shuttle 3 while expanding, making it easier for the middle shuttle 3 and the bobbin case 5 to cross the line. Formed on this side wall The needle drop groove 22 of the bur 8 can be inserted to avoid interference between the bur 8 and the middle shuttle 3. Please refer to FIG. 9 for an enlarged sectional view according to part IX shown in FIG. 7. Full rotation The hook 3 of the thread hooking device 1 is driven and rotated by the transmission shaft 4 formed separately as described above. Since the middle shuttle 3 is fixed to the lower shaft of the sewing machine and the like, it is easier to be perpendicular to the axis L1 in the large shuttle 2 The radial direction shifts. Therefore, when the middle shuttle 3 is driven to rotate by the transmission shaft 4, it will vibrate in the radial direction. A notch for needle drop is formed on the rail 11 to make it easier to vibrate. In order to avoid the above-mentioned vibration, convex parts 72 and 73 are formed on the large shuttle 2 and the middle shuttle 3 of the full-return hook device 1 respectively. A convex portion 72 is formed on the shuttle fixing piece 15 of the large shuttle 2 printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The convex portion 72 protrudes in the axial direction of the large shuttle body from the inner portion of the groove 7 in the radial direction. 14bottom 61. The convex portion 72 extends in the circumferential direction. Therefore, the groove 7 includes a concave portion 74 extending in the radial direction outward from the convex portion 72. The groove 7 on the large bobbin 2 is formed to face the open end. One of the faces of the groove 7 of the middle shuttle fixing piece 5 is that the inner side in the radial direction projects from the bottom 61 of the big shuttle 2 than the outer side in the radial direction and is a plane perpendicular to the axis L 1. The radius of the convex portion 72 The outer surface 75 in the direction is formed on a cylindrical surface around the axis L 1. The groove 7 faces the inner surface of the large shuttle body 14 outside in the radial direction to form a cylindrical surface. The groove 7 faces the bottom 61 of the large shuttle 2. Yes' is a plane perpendicular to the axis L 1. The rail 11 of the middle shuttle 3 is provided as described above. Wall portion 28 and outer wall portion 29 'The outer wall portion 29 protrudes toward the open end of the middle shuttle than the inner wall portion 28' 26 This paper size applies to the Chinese National Standard (CNS) Α4 size (210X297 mm) A? B7 4 4 6 7 81 V. Description of the invention (groan) Therefore, the rail U of the middle shuttle 3 is formed with a convex portion 73 on the outer side in the radial direction. The convex portion 73 protrudes toward the open end of the middle shuttle in the axial direction of the middle shuttle 3. The convex portion 73 is along the It extends in the circumferential direction, and therefore, a recessed portion 76 is formed on the rail 11 along the inner side in the radial direction of the convex portion 73. The radial inner side surface 77 of the convex portion 73 is formed on a cylindrical surface around the axis L1. The rail 11 is embedded in the groove 7 in a state where the convex portion 73 is embedded in the concave portion 74 and the concave portion 72 is embedded in the convex portion 76. As described above, when the rail 11 is inserted into the groove 7, and the middle shuttle 3 is mounted on the large shuttle 2, and the middle shuttle 3 is driven by the drive shaft 4 to rotate, the inner side 77 of the convex portion 73 of the middle shuttle 3 is large shuttle. The outer surface 75 of the 2 convex portion 72 is supported, and the middle shuttle 3 convex portion 73 is fixed to the large shuttle 2 convex portion 72 from the outer side in the radial direction of the middle shuttle 3. The outer diameter of the outer surface 75 of the convex portion 72 is slightly smaller than the inner diameter of the inner surface 77 of the convex portion 73. When the shuttle 3 is mounted on the large shuttle 2, the interval between the surfaces 75 and 77 is only about 2/100 to 3 / 100mm, so the middle shuttle 3 can be smoothly guided in the circumferential direction when it is prevented from shifting in the radial direction. Therefore, it can avoid the vibration in the radial direction when the middle shuttle 3 rotates, so that it can stably rotate around the axis L1, and avoid making a huge sound. At the same time, the upper line 9 is fixed in each cycle of the full-turn hooking device 丨Action 'and can form a uniform seam. Please refer to FIG. 10, which illustrates a simplified cross-sectional view of an all-revolving fishing line device 1a, a large shuttle 2a, and a middle shuttle 3a according to another embodiment of the present invention. In the embodiment of the present invention, the full-slewing hook-and-thread device 1 a has a full-sleeve hook-and-thread device similar to the above-mentioned figures i to 9 丨. The mark table does not omit its description, and only explains a part of the structure. Full swing hook _: __ 27 This paper size is applicable to Chinese countries ^^ ⑽) A4 threat (2 KK) X '---- ~~~~ (Please read the precautions on the back before filling this page) Order economy Printed by the Ministry of Intellectual Property Bureau employee consumer cooperatives Printed by the Ministry of Economics Intellectual Property Bureau employee consumer cooperatives 4 4 5 7 lyPtf'.iirtc / 0〇6 A7 --------- B7 V. Description of the invention '~~~ ----- The thread 1 is formed with a convex portion 72 on the large shuttle 2 and a convex portion 73 on the middle shuttle 3. However, in the full-turn hooking device la, the groove 7a of the large shuttle 2a is cut by 7 The cross-sectional shape of the plane of the axis L1 is rectangular, and the cross-section of the plane including the axis L1 of the middle shuttle 3 and the rail jl a is also truncated. That is, the 'full swing hook device 1a' is not formed in the projections 72 and 73 of the full swing hook device 1. Except that the full-circle hook device 丨 a cannot achieve the effects of the convex portions M and 73 of the full-circle full thread device 1, the other functions are the same. * a The above-mentioned full-return hook-and-thread threading device 丨 can achieve its purpose only by closing the known half-turn hook-and-thread threading device and the sewing machine with a few changes. The improvement method of the full-turn hook threading device 丨 is to form a g part 72 on the fixed plate of the conventional large shuttle, and replace the conventional shuttle and the transmission shaft with the intermediate shuttle 3 and the transmission shaft 4 described above. It is known that the driving body of the lower shaft of the sewing machine is removed, and the device is turned to a semi-rotation state. Although the present invention has been disclosed in the preferred embodiment as above, it is only an embodiment of the present invention, and other changes such as the movement axis 12 of the needle 8 and the middle shuttle 3 can also be made within the scope of the patent application of the present invention. The rotation axis L1 is not vertical and does not have any influence. The leaf spring can also be replaced by other springs such as compression coil springs, coil tension springs, and shell springs, or instead of using individual springs, the same can be achieved by forming the spring using other parts such as the parts that form the spring. effect. The convex portions 72, 73 formed on the large shuttle 2 and the middle shuttle 3 can also be formed on the bottom wall 8 of the shuttle 3, which can be the bottom of the large shuttle 2, or can be formed on both ends in the axial direction. Achieve the same effect. The rotation axis L · 1 of the middle shuttle 3 can be connected to the rotation axis l 3 of the transmission shaft 4 and 28 paper sizes. It is used as a national towel (CNS) _from class f 2 丨 〇χ 297 公 Chu ** (Please (Read the notes on the back before filling out this page)

4467 Thief l '. ≪ 10c / 006 A7 B7 V. Description of the Invention (Qin) Same configuration. The inclination angle m2 of each of the side walls 20 and 21 of the middle shuttle 3 is different. As for the rail U in which the side wall 17 is located at the center of the axial direction is formed in an asymmetrical state, it passes up and down through the loop of the upper line 9. The timings at which the respective thread portions are extended may be different in the openings 18 and the middle shuttle 3. The side wall Π of the middle shuttle 3 can be made slightly cylindrical as shown by the imaginary line 80 in FIG. 4 'to form a blind arc at both ends in the axial direction, without increasing the overall outer diameter of the middle shuttle 3'. Increase the size of the bobbin case 5 within the range, or increase the capacity of the lower 12 lines. Even if the side wall 17 is slightly cylindrical, because the two ends in the axial direction are slightly arced, the upper thread 9 can be guided to the bottom wall] and the open end of the middle shuttle, and the cross-line operation can be smoothly completed. The full swing hook thread device 1 and 1 a can be appropriately changed as described above. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and retouches without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be determined by the scope of the attached patent application. Any deformation or change within the same scope as the scope of patent application is within the scope of patent application of the present invention. According to item 1 of the scope of patent application of the present invention, the upper and lower loops are captured and moved while the upper loop is expanded. Due to the rotation of the individually formed drive shaft, the upper thread can also cross the middle when the upper thread crosses the bobbin case. Shuttle. Therefore, the upper loop will not be staggered in the middle, it can be expanded into a slightly U-shape, and it can be wound on the lower thread without twisting the upper thread. The driving shaft is continuously driven and driven in the predetermined direction of rotation, and the middle shuttle is continuously rotated accordingly. 'Because the driving shaft and the middle shuttle will not stop in the middle of any cycle,' it can make full rotation 29 ----- ----------— ~ ™ ~ This paper uses China National Standard (CNS) Standard 8 (2IOX297 mm) (Please read the precautions on the back before filling this page) Order _ Economy Printed by the Consumers ’Cooperative of the Ministry of Intellectual Property Bureau 4 46 7 84Q ρϊ t '. Dnc / 0 0 6 Printed by the Consumers’ Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (> ^ /) Hook-up device maintains high speed operation . According to item 2 of the scope of patent application of the present invention, when the transmission shaft is continuously rotated and driven, the repetitive periodic elastic deformation movement and restoration of the elastic deformation movement are repeated by the reed, so that the free end of the transmission shaft and the reed or near the free end produces Periodic contact and separation. When the upper thread crosses the middle shuttle and the drive shaft is separated from the free end or the free end of the reed, the upper thread can bypass the clearance between the drive shaft and the free end or the free end of the reed. Therefore, the upper loop is prevented from being caught by the middle shuttle and the drive shaft when the upper loop is crossed, so that the upper loop can smoothly cross the thread. In case the upper thread is caught by the middle shuttle or the drive shaft, the upper thread will deform the reed spring and pass between the drive shaft and the reed. Therefore, the online will not be disconnected. According to item 3 of the scope of patent application of the present invention, the position of the transmission shaft against the middle shuttle is changed in the radial direction of the middle shuttle, and the rotation torque transmitted from the transmission shaft to the middle shuttle also changes periodically. Therefore, the rotation speed of the middle shuttle can be changed periodically, and the passing timing of the tip in the circumferential direction can be changed. According to item 4 of the scope of patent application of the present invention, the convex portion formed facing the large shuttle groove and the convex portion formed on the middle shuttle rail are fixed to guide the middle shuttle circumferentially. Therefore, the radial vibration generated during the rotation of the middle shuttle can be avoided, and the stability of the rotation can be maintained. According to item 5 of the scope of patent application of the present invention, the middle shuttle is provided with a side wall forming a rail. When the wire loop is guided to the side wall by being captured by the tip, it moves around the middle shuttle while being enlarged, so that the middle shuttle and the shuttle The shell can be easily completed across the line. A needle drop groove inserted into the bur is formed on the side wall to avoid interference between the bur and the center shuttle. (Please read the precautions on the back before filling out this page) 30 This paper size applies to Chinese national standards (CNS > A4 size (2I0X: 297 mm)

Claims (1)

6 一 -1 ------- I_ 4 Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, 4 A8 Η, Sichuan 'Heart " Coffee BS D8, scope of patent application 1. An all-slewing hook line device, including A large shuttle that is fixed to the sewing machine body and has grooves that extend in the circumferential direction of the inner wall; a middle shuttle that holds the upper thread of the needle that is driven up and down and back and forth A tip is formed along the circumferential direction of the outer wall portion, and the rail is embedded in the groove to allow it to freely rotate on the large shuttle; a drive shaft, which is synchronized with the needle movement up and down in a predetermined rotation direction continuously Driven by the rotation, the middle shuttle is pressed against the middle shuttle and the middle shuttle is rotated; and a bobbin case, the bobbin case accommodates the lower line, is installed on the middle shuttle and can be freely disengaged. 2. The full-swing hooking device as described in item 1 of the scope of patent application, wherein the middle shuttle is provided with a reed fixed near the base, and the transmission shaft can press against the free end of the yellow piece or near the free end. 3. The full-swing hooking device described in item 1 of the scope of patent application, wherein the rotation axis of the transmission shaft is eccentric to the rotation axis of the middle shuttle. 4. The full-return hooking device according to item 1 of the scope of patent application, wherein the large shuttle disc faces the groove in the axial direction to form a protruding convex portion, and the convex portion provided in the middle shuttle rail , The protrusion is in the axial direction of the middle shuttle, and is fixed to the convex portion of the large shuttle from the outside in the radial direction of the middle shuttle. 5. The full-circle hook-hook device according to any one of claims 1 to 4, wherein the side wall forming the rail on the middle shuttle is provided with the side wall formed in the area where the needle is inserted. Needle drop groove. (Please read the precautions on the back before filling out this page) This paper uses the Chinese National Standard (CNS) Α4 size (210X297 mm)