TW200837242A - Presser foot of sewing machine - Google Patents

Abstract

The present invention provides a presser foot of sewing machine. The left and right presser feet extended before the stitch position are allocated in such a way: an auxiliary guiding element in the guiding channel between the two presser feet is installed on one of the presser feet holding the upper layer of cloth between the presser feet and the stitch plate. Adjust the channel width between the other presser foot and the auxiliary guiding element, so that the upper layer of cloth and the lower layer of cloth can maintain a good state of elevation, and are sent into the allocated positions of the fixed knife and the movable knife for trimming the edge. By using this structure, bad sewing due to the defect trimming can be avoided.

Description

200837242 IX. INSTRUCTIONS ··· [Technical Field] The present invention relates to a presser for a sewing machine which can be used to join two seams of the end edges and stitch them together. [Prior Art] The sewing method is a sewing method in which a pair of pants and shorts are worn, and a sewing method for a part is performed using a sewing machine having a cylindrical car σ having a small radius. The sewing machine includes a needle plate (st丨tch Plate) provided on the upper end portion of the cylindrical table, and a presser member (presser F) which is located above the needle plate and can be lifted by manual or automatic means. The above-mentioned sewing seam is carried out in the step of superimposing two pieces of fabric in the up and down direction across the predetermined width from the end edges of the two, and feeding them into the pressing piece which is clamped on the lower side: Fan Yuyu + dry spear joint suture. In order to obtain a good quality sewing product by the sewing of the needles at the lower needle position, it is important to make the fabric of the needle position a proper choice. The overlap width of the fabric - in general, the position of the presser is adjusted by the operator's manual work, +, and the problem of skillful adjustment is required.曰^ In order to eliminate this problem, Shi Gongzhao 59-3 tearing bulletin (Examined

Japanese UtUity Model Publ ication No. 59-34457 (1984) discloses a seam rush machine that includes a special (four) cloth piece and does not require an operator to adjust the coincidence width. The repeating piece of the seam cutting machine includes the trimming edge of the fabric to be sewn.

2098-9255-PF 5 200837242 The cutter and the guide element that guides the trimmed fabric and causes it to overlap in the up and down direction. Fig. 1 is a perspective view of the sewing machine in which a conventional presser having a cutting blade and a guiding member is placed near the lower needle position. As shown, the press member j includes a pusher body 11 and two presser feet 12, 13. The pressing body 11 is attached to the lower end of the pressing rod 1 支持 supported by the tip end of the slitting machine cantilever 2, and the two pressing legs 12, 13 are disposed in parallel with each other and extended forwardly before the pressing body 丨丨°卩 on the left and right sides. The presser member 1 descends as the pusher bar 10 moves downward, and is pushed by the needle plate 4 on the sewing machine table 3. The left and right presser feet 12, 13 form a guide passage 15 that opens to the front end. In the middle of the guide passage 15, there is disposed a fixed cutter (2), a fixed cutter 16 and a movable cutter 17 which is movable in the left-right direction and attached to the presser foot 13. At the rear position of the fixed cutter 16 and the movable cutter 17, an upper guide is provided; u, which spans between the upper and lower pressers 12, 13 and the upper guide 18 10 The lower position 'is provided with a lower guide 1 9 which extends along the lower surface of the presser foot 1 2 into the guide passage 丨 5 (refer to FIGS. 2B and 2C). As shown in Fig. 1, the lower layer fabric KL and the upper fabric KU are ascended in the guide passage 丨5 in a state where the respective end edges overlap each other, and the two are sandwiched between the left and right presser legs 12, 13 The manner between the needle plate 4 and the needle plate 4 is fixed. In this state, the lower layer fabric KL and the upper fabric sheet are fed into the lower portion of the pressing body 11 except for being pushed in the direction indicated by the reverse white arrow in Fig. 1, by descending to the approximate center of the pressing body 11. Seam below the needle position 14

2098-9255-PF 6 200837242 Needle 5, 5... to suture. The lower edge of the lower layer of fabric KL and the upper layer of fabric is supported by a fixed cutter 6 and a movable cutter at the middle of the guide channel 15! The action of 7 is trimmed, and the edge of the lower layer fabric KL and the upper fabric layer after the trimming is superposed by the upper guiding device and the lower guiding device 19, and is sent to the lower needle position 14. Fig. 2 to Fig. 2 are explanatory views of the action of the pressing member, which is approximately the same as the cross section of the fish lower layer fabric KL and the upper layer fabric. Fig. 2 is a view showing the vicinity of the front end portion of the presser member, and Fig. 2 is a cross section showing the trimming position of the fixed cutter 16 and the movable cutter 17, and Fig. 2C and Fig. 2D show the position between the trimming position and the lower needle position 14. Section, Figure 2 shows the section of the lower needle position 14. As shown in Figures 2C and 2D, the upper guide 18 has an undercut that is curved to the side of the presser foot 12 and lower on the side of the presser foot 13 in a manner that is thickened toward the rear. And extending from the position before the lower needle position 14 to the lower side of the pressing body 11. The lower guiding device 19 is a flat plate fixed to the lower surface of the presser foot 12, as shown in FIG. 2 and FIG. 2C, extending from the rear side of the fixed cutting blade 16 and the movable cutting blade 17 to the guiding channel. Within the crucible 5, includes a leading edge that increases in length toward the rear. As shown in Fig. 2A, the lower layer fabric KL and the upper layer fabric KU are appropriately loaded from the respective edge edges. The overlapping portion is introduced into the guide passage 15 in a state where the needle plate 4 is raised. In order to make this introduction easy, the auxiliary plate p may be used as shown in the chain line of Fig. 2A, and it stands on the upper surface of the needle plate 4 to keep the overlapping portion of the lower layer fabric KL and the upper layer fabric KU at Ascending state 0 2098-9255-PF 7 200837242 In this way, the lower layer fabric KL and the upper fabric κ are introduced as shown in Fig. 2B to the position where the fixed cutter 16 and the movable cutter 1 7 are disposed, and the respective edges thereof. After being trimmed, it was sent to the rear. During this pushing, the lower layer fabric KL held by the left presser foot 12 is as shown in FIGS. 2C and 2D, and protrudes from the left side to the leading edge of the lower guiding device 丨9 in the guiding passage 15. Push it and pour it over the needle plate 4. The upper fabric κυ held by the right presser foot 13 is guided by the guiding means 18 bent to the upper of the arch, and is lowered to the lower lower guiding guide 19, after reaching the lower guiding device 19 Thereafter, it is superposed to the upper portion of the lower layer fabric KL on the needle plate 4. The lower layer fabric after the overlap and the upper fabric KU are fed to the lower needle position 14 as shown in Fig. 2E, and are stitched by the stitches 5, 5... which are lowered to the lower needle position 14. ·

In this way, the lower layer fabric KL and the upper layer fabric KU can be trimmed by the action of the fixed cutter 16 and the movable cutter blade 17, and the overlap is obtained by the action of the upper guiding device 和^ and the lower 引衣衣1, And is sent to the lower needle position 14, the shell is now overlapped and the width is approximately fixed below the layer of fabric KL and the seam of the upper layer of fabric. At this time, the worker only needs to properly overlap the vicinity of the edge of the lower layer fabric KL and the upper layer fabric, and it is not required to be skilled in the state in which the needle board 4 is lifted into the presser member 1'. In order to allow the sewing as described above to proceed well, the edges of the lower fabric and the upper fabric must be properly trimmed by the action of the fixed (four) knife 16 and the movable cutter. The fixed cutter 16 and the movable cutting tube act on the upper side of the needle plate 4; the upper edge of the KL and the upper layer KU of the 邛 邛 , , , , , , , , , , , ^ ^ ^ ^ ^ ^ ^ ^ ^ Edge ' fe疋 lower layer fabric KL and upper layer

The rising state of the cloth KU is very important. 2098-9255-PF 8 200837242 The ascending state of the lower layer fabric KL and the upper layer fabric KU on the needle plate 4 is maintained by the action of the inner side of the dust feet 1 2, 1 3 (the opposing faces of the guide passages 15). Therefore, in order to maintain a stable rising state, it is necessary to correct the channel width f of the guide passage 15 between the presser feet 12, 13 where the fixed cutter 16 and the movable cutter 17 are located (refer to Fig. 2). However, the correction value of the channel width ^ of the guide channel 15 varies depending on the thickness of the underlying fabric KL and the upper fabric 欲, so if the channel width W is used, it is suitable for the thicker underlying fabric KL and the upper fabric 压. In the case of the thinner underlying fabric KL and the upper fabric 〇, especially the thin and soft underlying fabric KL and the upper fabric ,, the lower fabric and the upper fabric 扭曲 will be twisted in the guide channel 15 with a wide correction width. , the wrinkle is caused by the fixed cutting blade "and the action of the movable cutter 17 to trim the end edge, as shown in the fourth (") may result in the IU learning part Α remaining in the edge of the upper fabric 的, the opposite side The use of the channel width w is suitable for the thinner underlying fabric u and the upper fabric KU of the press fabric 1 , and the edge fabric is made at the edge of the seam, and the fabric KL and the upper fabric are smaller than the corrected width. Pushing the lower layer of fabric KL and the upper layer of fabric will be hindered, which may hinder the sewing process. In this case, in the past, depending on the thickness of the fabric to be sewn, the fabric 1 was replaced as the opposite, Tianqi ¥, # k In the case of thin cloth and thick cloth mixed in 1 now %' f to replace the pressure of the pressing piece u efficiency. "There is work, and when the sewing process is in progress, the replacement of the bunk can not be taken Piece=degree will produce a change in the cloth, so it is difficult to get excellent

2098-9255-PF 9 200837242 m Sewing products. SUMMARY OF THE INVENTION This meal is an invention produced in the light of such a situation, and is intended to be a press-fitting material of a sew-and-scratch machine which can be well trimmed in the case of a different type of fabric by adding simple components. Upper fabric and lower fabric: the end is effective to prevent poor sewing due to poor trimming function

The press fabric of the slitting machine of the present invention comprises two presser legs which are located on the left and right sides of the lower needle position and extend to the front in a state of approximately parallel to each other, and are formed between the two presser legs. a cutting blade disposed on a middle portion of the guiding passage, wherein the upper pressing fabric and the lower fabric sandwiched between the two pressing legs and the needle plate are raised at the respective end portions on the needle plate The guide passage 'repairs the end edge by the above-mentioned cutting blade so as to be superposed in the up-and-down direction and is fed into the lower needle position', characterized in that it includes a cutter blade attached to the presser foot holding the upper layer fabric. An auxiliary guiding element that is positioned and extends to the inside of the guiding channel. In the press fabric of the sewing machine according to the second aspect of the invention, the auxiliary guide member of the invention is attached so as to be adjustable in the left-right direction so as to be able to change the amount of extension extending into the guide passage. In the presser for a sewing machine according to a third aspect of the invention, the auxiliary guide member according to the second aspect of the invention is mounted by a set screw that can be operated above the presser foot. In the press fabric of the sewing machine according to the fourth invention of the present invention, the invention is in any one of the inventions of the invention, wherein the auxiliary guide member in the factory fabric of the slitting machine of the invention is a bindable The structure of the elastic displacement in the width direction of the guiding channel on the way. ^ The purpose and new features of these inventions can be more fully understood by reading the following detailed description with reference to additional drawings. [Embodiment] # Hereinafter, the present invention will be described in detail based on the drawings showing the best mode of implementation. Fig. 4 is an exploded perspective view showing the pressing member of the sewing machine of the present invention. The pressing member 1 of the present invention includes a pressing body u having a lower needle position 14 disposed at a substantially central portion, and two pressing legs 12 extending to the front in a state in which the front portion j of the pressing body u is parallel to each other. 13. The pressing body 丨丨 has a supporting leg 11a that rises at the rear portion, and the insertion hole lib having an opening at the upper end of the supporting leg Ua is inserted and fixed to the lower end of the pressing bar 1 所示 shown by the chain of the second point of FIG. It is the same as the conventional press fabric 丨, as shown in the figure, supported by the lower end of the sewing machine cantilever 2. The presser member 1 is as shown in Fig. 1, and is used in the same manner as the push bar worker to be lowered on the sewing machine table 3, and is pushed against the needle plate 4 across the sewing machine table 3. The body u and the left and right presser feet 12, 13. Below the respective pressers 12, 13, sliding plates 123, 13a are mounted. The sliding plate 12&, 13& is a plate spring bent into a sled shape, and the engaging portion provided by bending the front and rear ends hooks the front edge of the presser foot 12, 13 and the rear edge of the pressing body 11, by the stopper screw 12b 13b is fixed to the front edge of the presser foot 12, 13 and is installed along the entire length of the presser foot 12, 13 and the push body 11. On the rear side of the pusher body 11 at the lower needle position 14, there is an auxiliary 2098-9255-PF 11 200837242 which is placed between the sliding plates 12a, i 3a. The auxiliary pressing device g connects the v-retaining support cylinder 90 from below to the support leg

Mounting holes (not shown) on the Ua are biased downward by the coil springs 91 held inside the support cylinder 90. The pushing of the needle plate 4 for pressing the main body u and the left and right presser feet 12, 13 is actually produced by the auxiliary pressing device 9 and the sliding plates 12 & 13, a. In the middle of the presser foot 12, 13, a support hole having a rectangular cross section is provided, which passes through the width direction. On one side (left side) of the support leg 12 of the presser foot 12, a plate-shaped fixed cutter 16 is fixed, and on the support hole of the presser leg 13 of the other side (right side), the cutter 17 can be moved to the left and right. The way the direction moves is supported. As shown in Figs. 5 and 6, the fixed cutter 16 protrudes to the guide passage 15 between the right and the right presser leg 13 at an appropriate length, where the projecting end has a blade face. The movable cutter has the same condition and protrudes into the guide passage 15 at an appropriate length, where the projection has a blade surface which is heavy with the blade surface of the fixed cutter. • Support hole for the presser foot 13 of the movable cutter 17 is supported. Extending to the front, an auxiliary guiding element 6 is mounted in the support groove 6〇 placed in the extension. As shown in Fig. 4, the auxiliary guiding element 6 is an element having an arcuate curved shape, bent On the opposite side of the face, a rectangular fixing block 61 which can be inserted into the support groove 60 is extended. The auxiliary guiding member 6 is inserted into the support groove 6 from the inner side of the presser foot 13 as indicated by the arrow in FIG. 〇, the circular hole that opens from the upper surface of the presser foot passes through the set screw 62, passes through the long hole 63 provided in the fixed block ,, and the screw hole name provided on the bottom surface of the support groove 6〇 is tightened to obtain a solid

2098-9255-PF 12 200837242 Fixed 0 The long hole 63 of the fixing block 61 is extended in the left-right direction as shown in Fig. 4, and the fixing position of the auxiliary guiding member 6 can be released in the long hole 63 by loosening the locking screw 62. Adjust in the left and right direction within the length range. The set screw 62 can be operated from above through a circular hole in the upper side of the presser foot 13, and the position of the auxiliary guide member 6 can be easily adjusted in the state in which the press member is attached to the lower end of the push rod 10. Further, below the presser foot 13, a concave portion 7 is provided which is inserted into the concave portion 7 = == flat plate-like engaging member 7 at a position rearward of the support hole of the movable cutter blade with an appropriate length. In the upper portion of the recessed portion 7〇, a recessed groove Ή is provided, which is opened on the upper surface and the outer side surface of the leg 13, and a plurality of pieces 7 are arranged in the left-right direction as shown by the arrow in FIG. 4, and the above-mentioned position is lost from the lower position. The recess 7. The retaining screw 贯通 that passes through the long hole provided in the bottom surface of the groove 71 is locked to the screw hole provided in the engaging member 7, thereby being fixed.

The long hole of the bottom surface of the groove 71 is as shown in Fig. 4, and the fixed position of the 7L member 7 extending in the left-right direction can be adjusted by the left and right directions in the range of the length of the pine and the ding. Operation 'coupling element======================================================================================== ...1 channel 15 side, such as

2098-9255-PF 13 200837242 Further, a plate spring 8 is attached below the presser foot 12. As shown in Fig. 4, the plate spring 8 is connected to the inner side of the rectangular fixing piece 81 which is overlapped with the lower guiding means 19, and has a rise from the connecting set edge in an approximately vertical state and rises therefrom in the left-right direction. The curved shape in which the upper end of the portion is lowered toward the other side has a curved shape that gradually decreases from the front to the rear in the post-rain direction. The plate spring 8 having such a shape is formed by a spring-loaded stainless steel plate (SUS3G4-CSP:; (8) and other elastic metal material sheets, including the fixing piece 8 body, as shown in Fig. 4, in the lower guiding device The upper portion is overlapped with the fixing piece 81, and is fixed to the lower surface of the presser foot 13 together with the lower guiding device 19 by locking the above-mentioned set screw 8A. Fig. 5 is a plan view of the presser foot 1 of the present invention (from above) Fig. 6 is a bottom view of the presser foot of the present invention (a plan view from below) "As described above", the auxiliary guide member 6, the engaging member 7, and the plate-like magazine are mounted. The positional relationship of the plane of 8 is shown together with the fixed cut _ knife 16 and the movable cutter 17 shown in the figure. The movable cutter 传动 is driven by the drive mechanism shown in Fig. 5 And the manner of the reverse white arrow in Fig. 6 advances and retreats in the left-right direction. With this advancement and retreat action, the blade surface of the movable cutter 17 is slidably coupled to the blade surface of the fixed cutting core, as will be described later. The beauty of the guide, ίί V into the upper fabric in the channel 15 The rising edge of the lower layer fabric KL. The auxiliary guiding member 6 is mounted on the inner side of the front portion of the presser foot 13 on the right side so that the side to be curved into the arcuate shape faces inward. The curved surface of the auxiliary guide bow element 6 is from the presser foot 13 The front end portion is disposed to the fixed cutter 16 and the movable cutter 17

Between 2098-9255-PF 14 200837242, it protrudes into the guide channel 15 between the presser foot 12. The auxiliary guiding member 6 can be adjusted in the left-right direction, and by this adjustment, the amount of protrusion protruding to the inner side of the guiding passage 15 can be changed. The engaging member 7 mounted under the presser foot 13 is shown between Fig. 6 between the fixed cutter 16 and the movable cutter 17 and the needle position 14 disposed below the pusher body. The edge of the engaging member 7 on the inner side of the presser foot 13 projects into the inner side of the guide passage i 5 between the presser foot 12 and is located forward of the lower needle position. The lower guide 19, which is fixed to the lower side of the presser foot 12 on the left side, as described above, includes a guide edge projecting to the inside of the guide passage 15 between the presser foot 13. As shown in Fig. 6, the projecting edge has a projecting length which increases from the lower position of the fixed joint of the fixed cutter 16 and the movable cutter 17 toward the rear (below the figure). The underarm V-inducing device 19 is a plate spring 8 fixed to the presser foot 〖2, as shown in Fig. 6, and the front end thereof is located at the blade surface of the cutting blade 16 and the movable cutter 1? Upper position. The rear end of the plate-like bullet 8 having the aforementioned curved shape and extending to the rear is located directly in front of the needle position 14 below the pressing body 11. - as shown in Fig. 5, 'on the rear side of the sliding joint portion of the fixed cutter 16 and the movable cutter blade 17 on the upper portion of the press fabric i, the upper guide device 8 is provided, which is horizontal; the work [foot 12, 13 between. As previously mentioned, the upper portion of the leaf spring 1 mounted on the foot 12 is covered by the upper guide 18. At the upper guiding device 18 彳 < A edge to the oblique rear, a guiding groove continuous on the outer side of the pressing body 11 (the side of the presser foot 12) is formed. The guiding groove 18a is fixedly cut

2098-9255-PF 15 200837242 f and movable (four) knife 17, "(4) is discharged to the left side for guiding action. The end of the fabric L includes the sewing machine of the presser foot 1 constructed as described above. The way of carrying out is the same as in the past, so that the end of the car that is under the sewing of =L: is attached to the guide channel 15 between the presser legs 12, 13 of the right side in the standing position, and the movable cutting is fixed at the cutting position. The sliding joint of the blade is trimmed at the edge; and the lower needle is placed at position 14. /, the upper and lower sides are heavy,

Fig. 7A to Fig. 7E are motion diagrams of the pressing member of the slitting machine of the present invention. This picture and Xi Zhi Xi no female 乍口兄

The operation description of the cloth (Fig. 2A to Fig. 2E) is the same, and the cross section of the press fabric 1 is roughly shown in the direction perpendicular to the conveyance direction of the lower fabric „L and the upper fabric 。. What is the seventh diagram? Cloth! Section 7B of the end shows a close section of the cutting position of the fixed cutting blade 16 and the movable cutting blade (7), and the 7th and the second shows the position between the cutting position and the lower needle position 14. The section 'the first part shows the lower needle position 14

As shown in FIGS. 7C and 7D, the lower surface of the upper guiding device 18 has a lower arch on the side of the presser foot 12 that grips the lower layer fabric KL and a lower side on the side of the presser foot 13 that holds the upper layer fabric π. The curved shape is thicker toward the rear and below, and the position before the position 14 is continuous. The aforementioned curved shape of the plate spring 8 mounted on the presser foot 12 corresponds to the shape of the lower surface of the upper guiding device 18, which is shown below the upper guiding device 18 as shown in Figs. 7C and 7D. 'Separate the appropriate gap and position it in a facing manner. Sewing together the lower layer fabric KL and the upper layer fabric KU as shown in Figure 7

2098-9255-PF 16 200837242 The vicinity of the respective end portions are clamped to the left and right presser foots 2, and the gap between the 丨3 and the needle plate 4 'overlaps the predetermined width from the end edge, and the overlapping portion stands on the needle plate 4 It is introduced into the guide channel 15. The p in Fig. 7A is an auxiliary plate provided to maintain the overlapping portion of the lower layer fabric KL and the upper layer fabric KU in a standing posture. In the press member 1 of the present invention, the auxiliary guiding member 6 mounted on the presser foot 3 holding the upper fabric κ is extended to the front end of the guide passage 15. The auxiliary guiding member 6 is opposed to the upper fabric 从 from the needle plate 4, and the lower fabric KL and the upper fabric KU are held on the needle plate 4 by the opposite side and lower fabric KL to the other presser foot 12 Stable standing state. As described above, the amount of protrusion of the auxiliary guide 7L member 6 can be increased or decreased by the position in the left and right direction. By this adjustment, the guide passage into which the lower layer fabric KL and the upper layer fabric κυ are introduced can be appropriately changed. 15 channel width w. Therefore, the appropriate passage width W can be set according to the type of the cloth to be sewn, whereby the lower fabric KL and the upper fabric 保持 can maintain a stable standing posture irrespective of their respective thicknesses, hardnesses and hardnesses.

The auxiliary guiding member 6 can be adjusted by the operation of the stopper screw 62 from the upper portion of the presser foot 13 and can also quickly cooperate with various different underlayer fabrics KL and upper fabric KU during the process. χ, it is also possible to estimate the thickness change by setting the thickness change to the position of the guide member 6 during the processing to eliminate the obstacle when the thick portion passes and to stabilize the standing of the other parts. posture. ^ 70 guides 6 can be used as a plate spring with elasticity in the left-hand direction to become the width of the guide channel 15, and the 4th secret, the U-plated displacement is configured to "process the aforementioned" Changing the thickness in the direction of sewing

2098-9255-PF 17 200837242 In the case of a fabric, the thickness variation can be absorbed by the deflection of the leaf spring in the portion where the thickness is changed, so that the standing posture of the lower fabric and the upper fabric KU can be more effectively maintained. The lower fabric KL and the upper fabric KU introduced into the guide passage 15 in this manner are as shown in Fig. 7B, and reach the position where the fixed cutter 16 and the movable cutter 17 are disposed, and the upper end edge thereof is trimmed. The auxiliary guiding member 6 is extended in front of the fixed cutting blade 16 and the movable cutter 17, so that the lower layer fabric R and the upper edge of the upper layer fabric KU are kept in a stable standing posture. Therefore, the third figure #' of T can prevent the occurrence of a defective sewing pattern which is sewn to the lower layer fabric KL under the condition that the end portion of the upper fabric κ is still left. As described above, the front end of the plate spring 8 is located at the upper portion after the fixed cutter 16 and the movable cutter 17, and the lower portion of the lower guide 19 is located at the lower portion, and the fixed cutter 16 and the movable cutter are fixed! The lower portion of the 7-cut lower layer fabric KL is engaged with the leading edge of the lower guiding device 19, and the upper portion of the upper layer of the fabric is joined with the plate spring 8. Further, the cloth cut by the fixed cutter 16 and the movable cutter 17 is placed on the upper guide 18, guided and discharged to the guide groove 18a provided in the foregoing manner. The lower layer fabric KL and the upper fabric KU which are fixed by the fixed cutter 16 and the movable cutter 17 are further transported, as shown in the % and 7d figures, to the vicinity of the lower needle position 14. During this time, the τ layer fabric KL is subjected to a guide bow of the lower guide means 19 which projects to the extension length in the guide passage 15; the edge is pushed from the left side and is poured onto the lower needle plate 4. Further, the upper fabric KU is pushed to the lower side by the plate spring 8 that is joined to the upper portion. The plate spring 8 has a lower side of the presser foot 13 that grips the upper layer of fabric κυ and faces

2098-9255-PF 18 200837242 The downwardly curved shape, the upper fabric KU is pushed to the lower right side by the action of the plate spring 8, and is poured onto the lower guiding device 19, and the V-leading is super-shifted in the 7D image. The transport position at the rear end of the stack 1 is superimposed on the upper layer of the lower fabric. The lower fabric KL and the upper fabric are transported further, as shown in Fig. 7e, to the position before the lower needle position 14. The guide garment 19 is not present in this position, and the upper fabric directly coincides with the upper fabric r above the lower needle position 14, and the engaging member 7 attached to the lower surface of the presser foot 13 protrudes. The projecting end of the engaging member 7 is as shown in Fig. 7D, and is superposed on the upper layer of the lower layer fabric KL without being loosely folded, thereby reaching the lower needle position 14 and squeezing the person. Hunting by the needle at the lower needle position 14 5,5··· From the above detailed description, the machine of the rhinoceros I Du Shizhen jujube ^ Ming Zhiyi invented the sewing Γ: set = in the middle of the factory holding the upper fabric The auxiliary guiding element that protrudes to the guiding and squatting position in front of the cutting blade, 16 and the movable cutting blade 17) is installed on the sturdy foot, and is output to the 诵 诵 音 音 音 音 — — — — — — — — — I degree with the guiding channel between the other presser foot, the upper fabric κ, ^ m ^ ^ Ding standing position can not be 4, I person hard and other types of cloth to keep the setting for the cutting edge of the cutting knife Therefore, "the sewing can be caused by good energy. There is a cut in the position of the second machine (4) in the second invention, and the position can be changed to the left and right side. The guiding element, the way of the amount of protrusion in k, can change the channel according to the type of fabric

2098-9255-PF 19 200837242 Width, so it can be more stable, good to enter # and the underlying fabric's standing position. The cutting edge of the cutting knife is trimmed. In the press fabric of the sewing machine of the first invention, the auxiliary 娄& $杜之屮屮拉拉 I |丁T 助导兀兀摅右祖曰AA is changed from the above operation, so The type of fabric is corrected for the channel width. In the press fabric of the sewing machine of the fourth invention, the auxiliary d-piece can be elastically displaced in the direction of the visibility of the guide channel, so that the thickness is free. In the case of sewing, the fabric can be smashed and smashed, and the shovel can be prevented by the auxiliary guide element. The resulting sewing problem.乜The above is in the details of the invention ^ Λ Τ /V ΡΒ , ^ The implementation form described in the member is, after all, is written to disclose the technical brother of the present invention. However, the present invention is not limited by this specific embodiment. Narrow F and this

The invention explained by JdL is a succinct month in the spirit of the present invention. Various changes can be made in the dry circumference

[Simple description of the drawing] The figure is a perspective view of the conventional pressing device. The sewing machine is in the vicinity of the lower needle position. Figs. 2A to 2E are conventional press members. Fig. 3 is a view showing the state of using a conventional press cloth. Description of the action. Fig. 4 is a perspective view of an exploded perspective view of the sewing machine of the sewing machine of the present invention.

2098-9255-PF 20 200837242 Figure 6 is a bottom view of the presser of the sewing machine of the present invention. 3D is the operation of the pressing device of the sewing machine of the present invention. [Main component symbol description] 1 Pressing cloth 2 Sewing machine cantilever 3 Sewing machine table 4 Needle plate 5 Needle 6 Auxiliary guiding member 60 Supporting groove 61 fixing Block 62 Stop screw 63 Long hole 7 Engagement element 70 Recessed part 71 Groove 72 Stop screw 8 Plate spring 8 〇 Stop screw 81 Rectangular fixing piece 9 Auxiliary pressing device 9 〇 Supporting tube

2098-9255-PF 21 200837242 91 Coil spring 10 push rod 11 pushes the body 11 a support leg 11 b insertion hole 12 presser foot 12a slide plate 12b stop screw 13 presser foot 13a slide plate 1 3 b stop screw 14 Needle position 15 guide channel 16 fixed cutting blade 17 movable cutter 18 upper guiding device 18a guiding groove 19 lower guiding device A enemy part KL lower layer cloth KU upper layer cloth 22

2098-9255-PF

Claims (1)

200837242 X. Patent application scope: The sewing cloth of the sewing machine, the sewing machine and the blade machine, including two presser feet which are located on the left and right sides of the lower needle position and extended to the front in a state of approximately -C ςη ^ and 2 The cutting knives are arranged between the presser feet, and the cutting knives disposed on the middle section of the V-introduction of the wind, /, the sticking of the above-mentioned two dust feet and the upper layer of the cloth And the respective ends of the lower layer of fabric are introduced into the above-mentioned guide plate in a state of standing on the needle plate; the sound is cut by the cutting blade, and the upper edge is overlapped and fed to the lower needle position. The utility model is characterized in that: the auxiliary guiding element is mounted on the IJ side of the cutting blade which clamps the presser foot of the upper layer fabric and extends to the inner side of the guiding channel. 2. The cloth pressing member of the sewing machine according to the scope of the patent application, wherein the auxiliary guiding member is installed by means of positional adjustment in the left-right direction so as to be changeable to extend in the guiding passage. 3. The press fabric of the sewing machine of claim 2, wherein the auxiliary guide member is mounted by a stop screw ^ operable by the upper portion of the presser foot. 4. The seam rushing machine according to any one of claims 1 to 3, wherein the auxiliary guiding member is configured to perform elastic displacement of the guiding direction of the guiding bow. See 2098-9255-PF 23