JP4348290B2 - Flat knitting machine with movable sinker - Google Patents

Description

  The present invention relates to a flat knitting machine provided with a movable sinker capable of moving back and forth in the tooth opening at the tip of the needle bed on the tooth opening side.

  Conventionally, a flat knitting machine including a movable sinker that can be moved back and forth with respect to the tooth opening is used so as to push down the knitted fabric being knitted below the tooth opening (see, for example, Patent Document 1). The movable sinker is disposed at a position near the tip of the needle bed, a knitting yarn receiving portion is formed at the tip, and is urged by a spring so as to press the knitting yarn between the knitting needles at the knitting yarn receiving portion.

  The sinker of the flat knitting machine, including such a movable sinker, has a basic function of forming a sinker loop between the knitting needles in which the tip protrudes from the tip of the needle bed more than the tip of the needle bed and draws the knitting yarn. When the knitting needle pulls the knitting yarn, the previously formed stitch loop is knocked over. In order for knockover to be performed smoothly, the position of the tip of the needle bed needs to be suitable for characteristics such as the thickness and tension of the knitting yarn. There is also known a technique in which a knockover plate is advanced from the tip of the needle bed to the mouth and the timing of knockover can be adjusted by changing the advancement amount (see, for example, Patent Document 2).

In flat knitting machines where the front and back needle beds are facing each other across the mouth, the tip position of the needle bed is
Define the size of the mouth. Depending on the nature of the knitted fabric to be knitted, the proper size of the mouth is also different. However, it is generally fixed at standard tooth size. A technique is also known in which the tip of the needle bed can be moved back and forth with respect to the needle bed so that the size of the mouth can be adjusted (see, for example, Patent Document 3).

Japanese Patent Publication No. 5-83657 No. 2694626 International Publication WO2002 / 046508 Pamphlet

  In a flat knitting machine, knitting needles are arranged on a needle bed at a constant pitch in units of gauges. As long as the knitted fabric is knitted with the total needle knitting that uses each knitting needle for knitting, even if there is a change in the thickness of the knitting yarn or the thickness of the knitted fabric, the range can be handled with a constant tooth size. However, in a knitted fabric that uses a needle knitting that uses only a fixed number of knitting needles for knitting in addition to the total needle knitting, it is difficult to cope with a constant tooth size. However, the knitting operation of the knitting needles arranged side by side on the front and back needle beds is generally driven by a cam mechanism mounted on a carriage that moves along the direction in which the knitting needles are arranged side by side. It is difficult to change because of the carriage. At least, it is impossible to change the positions of the front and back needle beds during knitting of the knitted fabric.

  The technique of Patent Document 2 can adjust the knockover timing at the position of the knitting needle to perform the knitting operation by operating the knitting needle and a cam mounted on the carriage together with the knitting needle. It is not possible to change the size of the mouth. In the technique of Patent Document 3, the sinker provided at the needle bed tip also moves. However, this sinker is not a movable sinker and does not have a function of pushing down the knitted fabric.

  If the technique of patent document 3 is applied also to a movable sinker like patent document 1, the action position of the movable sinker in a tooth opening will also change with a change of a tooth-mouth dimension. It is desirable that the operating position of the movable sinker does not change so that the movable sinker appropriately operates with respect to the knitting yarn supplied on the basis of the center of the mouth.

  An object of the present invention is to provide a flat knitting machine provided with a movable sinker that can change the size of the tooth tip even during knitting of the knitted fabric and does not change the operation position even if the size of the tooth tip is changed.

In the present invention, at least a pair of front and back needle beds are arranged so as to face each other with a tooth gap interposed therebetween, and a plurality of knitting needles are arranged in parallel on the upper surface of each needle bed so as to be able to move out of the tooth mouth. A movable sinker is provided at the tip of the mouth of the mouth, and the movable sinker has a knitting yarn holding portion at the tip protruding from the tip edge of the needle bed to the mouth, and a movable sinker capable of moving forward and backward at the mouth. In the provided flat knitting machine,
Each needle bed
A needle bed main body fixed to the tooth opening and supporting the movable sinker so as to be able to swing and displace;
A needle bed tip which is provided on the side of the mouth of the needle bed and includes a needle bed tip edge, and is capable of displacement in the retracting direction with respect to the mouth;
It is a flat knitting machine provided with a movable sinker characterized by having.

Further, in the present invention, the needle bed main body and the needle bed tip have irregularities to be fitted to each other,
The concave and convex portions are formed such that the tip of the needle bed is slidable in the retracting direction with respect to the tooth opening with respect to the needle bed main body, and the displacement in the other direction is restricted.

Further, in the present invention, the needle bed tip is formed by an assembly of a plurality of plates arranged in parallel in the juxtaposition direction of the knitting needles, and a continuous member penetrating the assembly in the juxtaposition direction,
A drive projection for driving displacement in the retracting direction with respect to the tooth opening is provided below the needle bed from a plate arranged at an interval in the juxtaposed direction.

  According to the present invention, a drive mechanism is provided on the lower surface of the needle bed main body so as to drive the needle bed tip so as to be displaced in the retracted direction with respect to the tooth opening.

  According to the present invention, at least the pair of front and back needle beds arranged so as to face each other with a flat knitting machine facing each other is provided with a movable sinker, and the mouth mouth is located more than the needle bed tip edge. A knitting yarn holding part is provided at the tip part protruding to the front and back, and can be swung forward and backward. Each needle bed is provided fixed to the tooth opening, and a needle bed main body that supports the movable sinker so as to be able to swing and displace, and is provided on the tooth opening side with respect to the needle bed main body and serves as a needle bed tip edge. A needle bed tip including a portion and capable of displacement in a retracting direction with respect to the mouth. By displacing the needle bed tip in the withdrawal and withdrawal direction, the size of the tooth cuff defined between the needle bed tip edges of the needle bed tips of the opposite needle beds can be changed even during knitting of the knitted fabric. The movable sinker is supported by the needle bed main body so as to be swingable and displaceable, and the needle bed main body is fixed to the tooth opening, so even if the needle bed tip is displaced to change the tooth opening size, It is possible to prevent the action position from changing.

  Further, according to the present invention, the needle bed main body and the needle bed tip have irregularities that fit together. By this unevenness, the tip of the needle bed is supported with respect to the needle bed main body so as to be slidable and displaceable in the retreating direction with respect to the tooth opening and to regulate the displacement in the other direction. Tooth size can be changed by sliding displacement of the needle bed tip with respect to the mouth.

  Further, according to the present invention, the needle bed tip is formed by the continuous member penetrating through an assembly of a plurality of plates, so that the processing is easy and the weight can be reduced. If the drive projection is engaged with the cam groove of the plate cam or the like, the tooth mouth dimension can be changed by driving the tooth mouth in the retracting direction.

  According to the invention, the driving mechanism is provided on the lower surface of the needle bed main body so as to drive the needle bed tip so as to be displaced in the retracting direction with respect to the tooth opening. With the driving mechanism, the size of the tooth opening can be changed independently of the knitting operation by the carriage or the like provided on the upper surface side of the needle bed.

  FIG. 1 schematically shows a configuration of main parts of a flat knitting machine 1 according to an embodiment of the present invention. In the flat knitting machine 1, at least a pair of front and back needle beds 2 and 3 are arranged so as to face each other with the tooth mouth 4 interposed therebetween. The tooth opening 4 is inclined so that the center line 4a is in the vertical direction and the needle beds 2 and 3 are inclined so that the side of the tooth opening 4 is high and the side away from the tooth opening 4 is low. The needle bed 2 is written horizontally. Since the direction of gravity is the direction along the center line 4a, the knitted fabric is pulled down in the direction of the inclined center line 4a in the figure. In addition, since the one needle bed 2 and the other needle bed 3 are substantially symmetrical across the center line 4a, the description of the other needle bed 3 is further simplified than the description of the one needle bed 2. Show.

  A plurality of knitting needles 5 are juxtaposed on the upper surface of one needle bed 2 in FIG. The same applies to the other needle bed 3. Hereinafter, although one needle bed 2 will be described, the same applies to the other needle bed 3 that is symmetric with respect to the center line 4a as described above. The knitting needle 5 is a latch needle, and the hook 5a at the tip can be opened and closed by opening and closing the latch 5b. As the knitting needle, other types of knitting needles such as a compound needle that opens and closes a hook with a slider that slides and displaces with respect to the needle body can be used.

  The needle bed 2 is configured by combining a needle bed body 6 and a needle bed tip 7. The needle bed main body 6 is configured by combining a needle bed substrate 8 and a needle plate 9. A needle bed tip edge 7 a is formed on the side of the tooth root 4 at the needle bed tip 7, and a tooth gap dimension d is defined by an interval between the needle bed tip edge on the side of the needle bed 3 facing the needle bed tip 7. Grooves 8a are formed in the needle bed substrate 8 at intervals corresponding to the pitch of the knitting needles 5 and the lower portion of the needle plate 9 is fitted and erected. A needle groove for accommodating the knitting needle 5 is formed between the upper parts of the adjacent needle plates 9. Each needle plate 9 is positioned with respect to the needle bed substrate 8 by a plate clamping wire 10. A convex portion 8 b is also formed on the side of the tooth base 4 of the needle bed substrate 8, and engages with a concave portion 7 b formed at the needle bed tip 7. That is, the needle bed main body 6 and the needle bed tip 7 have irregularities that fit into the convex portions such as the concave portion 7b and the convex portion 8b. The unevenness is formed so that the needle bed tip 7 can slide and retract in the direction toward and away from the tooth opening 4 with respect to the needle bed body 6 and regulate the displacement in the other direction. The tip 7 is supported by the needle bed main body 6, and the tooth opening dimension d can be changed by sliding displacement in the retracting direction with respect to the tooth opening 4.

  A movable sinker 11 is provided at the tip of the needle bed 2 on the side of the mouth 4. The movable sinker 11 has a knitting yarn holding portion 11a at a tip portion protruding from the needle bed tip edge 7a to the tooth opening 4 and can swing back and forth in the tooth mouth 4. The swing displacement of the movable sinker 11 is supported by the swing support portion 11b. A portion of the movable sinker 11 on the needle bed 2 is accommodated in a thin portion 9 a formed on the needle plate 9. A supporting recess 9b into which the swing support portion 11b of the movable sinker 11 is fitted is formed in the lower portion of the thin portion 9a. The movable sinker 11 has a tooth mouth 4 such that the knitting yarn holding portion 11a follows an arcuate track near the center line 4a of the tooth mouth 4 by fitting the swing support portion 11b into the support recess 9b. Can be moved forward and backward. In this forward / backward swing, the tangent direction of the knitting yarn holding portion 11a of the movable sinker is substantially parallel to the direction of the center line 4a. A wire spring 12 is attached to the upper portion of the swing support portion 11 b of the movable sinker 11. The wire spring 12 biases the knitting yarn holding portion 11a so as to be displaced in an arc shape with the lower side of the center line 4a of the tooth opening 4 as a tangential direction by the swinging displacement of the movable sinker 11.

  The upper part of the movable sinker 11 is pressed so as to remain on the thin wall portion 9a of the needle plate 9 by a band 13 provided in parallel with the plate clamping wire 10, that is, in a direction penetrating the paper surface. The upper portion of the wire spring 12 is received by a step portion formed on the upper end of the needle plate 9 on the side of the tooth opening 4 with respect to the band 13. A spacer 14 is disposed above the knitting needle 5 on the side of the movable sinker 11 that remains on the thin portion 9 a of the needle plate 9. The upper part of the spacer 14 is also pressed by the band 13. The lower surface of the spacer 14 is pressed so that the knitting needle 5 does not leave the needle groove between the needle plates 9. Each spacer 14 is attached to the needle plate 9 with reference to the position of the spacer positioning wire 15.

  One side of the thin portion 9 a of the needle plate 9 is removed to accommodate the movable sinker 11. When each knitting needle 5 is used as a reference, both sides of the knitting needles 5 in the side-by-side direction are sandwiched by the needle plate 9, facing the back side of the thin portion 9 a of the needle plate 9 on one side, and the thin portion 9 a on the other side. Will face. A transfer blade 16 is provided on one side of the knitting needle 5 so as to advance to the tooth opening 4 and pass the stitch to the knitting needle that advances from the opposing needle bed 3.

  On the lower surface side of the needle bed 2, a connecting plate 17, a connecting pin 18, a fixing pin 19, a cover plate 20, a bolt 21, and the like are provided as a drive mechanism for advancing and retracting the needle bed tip 7 toward the tooth opening 4. FIG. 1 shows a state where the needle bed tip 7 is a narrow tooth opening position where the needle bed 7 is most advanced to the tooth opening 4. At the narrow mouth position, the tooth opening dimension d between the facing needle bed 3 is minimum. This tooth opening dimension d is equivalent to a flat knitting machine of the same gauge that does not have a function of changing the tooth opening dimension d, and the narrow tooth opening position is set as a reference position.

  FIG. 2 shows a state in which the needle bed tip 7 is at the wide mouth position where it is most retracted from the mouth 4. Tooth size d between the opposite needle bed 3 is the maximum. The movement of the needle bed tip 7 between the narrow mouth position as shown in FIG. 1 and the wide mouth position as shown in FIG. 2 can be driven by, for example, the connecting plate 17. In the connecting plate 17, a guide groove that engages with the connecting pin 18 is formed in the direction from the front to the back of the paper, and a guide groove that engages the fixing pin 19 in the direction from the front to the back of the paper, and on the paper. Are formed so as to include a portion that also changes in the horizontal direction. When the connecting plate 17 is slid from the front side to the back side of the paper surface, the guide plate 17 is moved in the lateral direction of the paper surface via a fixing pin 19 whose lower end side is guided by the connecting plate 17 and whose upper end side is fixed to the needle bed substrate 8. The needle bed tip 7 can be driven in the direction of advancing and retracting to the tooth opening 4 via the connecting pin 18 fixed to the needle bed tip 7. The cover plate 20 is pressed from below so that the connecting plate 17 does not fall off the needle bed 2. The cover plate 20 is fixed to the lower surface of the needle bed substrate 8 with a plurality of bolts 21 arranged along the direction in which the knitting needles 5 are arranged side by side. Although the cover plate 20 is shown as one long bar in the figure, a short plate can be divided into a plurality of pieces.

  FIG. 3 shows the shapes of the main parts constituting the part shown in FIGS. 1 and 2. The wire spring 12, the movable sinker 11, the spacer 14, the needle plate 9 and the knitting needle 5 have a thickness equal to or less than the pitch at which the knitting needles 5 are arranged in parallel. The needle bed tip 7 and the needle bed substrate 8 have a length exceeding the range in which the knitting needles 5 are arranged side by side as the length necessary for the direction in which the knitting needles 5 are arranged in the longitudinal direction of the needle bed 2. However, the needle bed tip 7 becomes unnecessary when it exceeds the range where the knitting needles 5 are arranged side by side. The connecting plate 17 and the cover plate 20 may be approximately the same length as the needle bed substrate 8. A plurality of connecting pins 18 and fixing pins 19 may be provided in the longitudinal direction of the connecting plate 17 with an interval larger than the parallel pitch of the knitting needles 5.

  FIG. 4 shows the configuration of the connecting plate 17 provided on the lower surface side of the needle bed 2 shown in FIGS. 1 and 2. The connecting plate 17 is supported by, for example, link mechanisms provided at both ends in the longitudinal direction of the needle bed substrate 8, reciprocates in the longitudinal direction of the needle bed substrate 8, and can also be displaced in the forward and backward direction toward the tooth opening 4. . The connecting plate 17 is provided with a guide groove 17 a that engages with the lower end of the fixing pin 19 and a guide groove 17 b that engages with the connecting pin 18. The mechanism as described in FIG. 7 of Patent Document 3 can also convert the driving force in the longitudinal direction into the driving force in the advancing and retracting direction toward the tooth mouth 4.

  FIG. 5 shows a simplified configuration of the upper surface side of the needle bed 2 of FIG. The movable sinker 11 is adjacent to one side of the knitting needle 5 with a needle plate 9 interposed therebetween, and is directly adjacent to the other side. The portion of the movable sinker 11 that protrudes toward the tooth opening 4 is such that the knitting needle 5 side is deleted, and the knitting yarn holding portion 11 a is spaced from the tip of the knitting needle 5. Since the other side of the movable sinker 11 is adjacent to the knitting needle 5 with the needle plate 9 in between, the knitting yarn holding portion 11a and the knitting needle 5 are spaced apart. With such a configuration, the knitting yarn holding portion 11a of the movable sinker 11 can press the sinker loop at the center of the adjacent knitting needles 5 when the stitches are formed by the knitting needles 5.

  Since the movable sinker 11 is supported on the side of the needle bed main body 6 fixed to the mouth opening 4, the needle bed tip 7 recedes from the tooth mouth 4 as shown in FIG. Even if 7a moves to the wide mouth position as indicated by a broken line, the position relative to the tooth mouth 4 can be prevented from changing.

  6 and 7 schematically show the structure of the main part of a flat knitting machine 31 which is another embodiment of the present invention. Parts corresponding to the flat knitting machine 1 shown in FIG. 1 are denoted by the same reference numerals, and redundant description is omitted. FIG. 6 shows a narrow mouth position similar to FIG. 1, and FIG. 7 shows a wide mouth position similar to FIG. Also in the flat knitting machine 31, the front and back needle beds 32, 33 are opposed to each other with the tooth opening 34 interposed therebetween. The configurations of the front and back needle beds 32 and 33 are basically symmetrical with respect to the center line 34a of the tooth mouth 34, and one needle bed 32 will be described in the same manner as the flat knitting machine 1 in FIG. The needle bed 32 is formed by combining a needle bed body 36 and a needle bed tip 37. The needle bed tip 37 is not directly engaged with the needle bed board 38 and is disposed on the side of the tooth opening 34 of the needle bed board 38. A needle plate 39 is erected on the needle bed substrate 38 in the direction in which the plurality of knitting needles 5 are arranged at the same pitch as that between the knitting needles 5. Is formed. The needle plate 39 is positioned with respect to the needle bed substrate 38 by the plate clamping wire 10.

  The needle plate 39 supports the movable sinker 11 on the tooth opening 34 side in the same manner as the needle plate 9 of FIG. The needle bed tip 37 is formed as an assembly of a plurality of plates 48 having a needle bed tip edge 37a, and a band 43 is inserted through the elongated hole 37b and integrated.

  That is, the needle bed tip 37 is formed by an aggregate of a plurality of plates 48 arranged in parallel in the direction in which the knitting needles 5 are arranged, and a band 43 as a continuous member that penetrates the aggregate in the direction in which the plates 48 are arranged in parallel. It is formed. A control butt 48a as a driving projection for driving displacement in the retracting direction with respect to the tooth opening 4 protrudes from a part of the plate 48 arranged at intervals in the juxtaposed direction below the needle bed 32. By the sliding displacement of the needle bed tip 37 with respect to the tooth opening 34 in the retracting direction, the tooth mouth dimension d, which is the interval between the needle bed tip edges 37a facing each other at the tooth mouth 34, can be changed. The needle bed tip 37 is formed by the band 43 penetrating through an assembly of a plurality of plates 48, so that the processing is easy and the weight can be reduced. If the control butt 48a serving as a drive projection is engaged with a cam groove of a plate cam or the like, the tooth mouth dimension d can be changed by driving the tooth mouth 4 in the retracting direction. The portion of the plate 48 that is in the vicinity of the needle bed tip edge 37a has a large thickness. Both sides are thick, and the cross-sectional shape in the vicinity of the needle bed tip edge 37a of the plate 48 is T-shaped.

  FIG. 8 shows the shapes of the main parts constituting the part shown in FIGS. The wire spring 12, the movable sinker 11, the band 13, the spacer 14, and the knitting needle 5 are common to the components shown in FIG. The needle plate 39 is also provided with a through-hole 39c through which the band 43 passes, together with a thin portion 39a and a swing support portion 39b similar to the thin portion 9a and the swing support portion 9b of the needle plate 9, respectively. The band 43 is supported by the needle plate 39. The long hole 37 b formed in the plate 48 serving as the needle bed tip 37 is formed in substantially the same dimension as the thickness and width of the band 43 in the thickness direction and width direction of the band 43. Although the thickness of the through hole 39c provided in the needle plate 39 is substantially the same as that of the band 43, the width direction is made larger than that of the band 43 so as to allow the forward and backward displacement of the needle bed tip 37 to the tooth opening 34. Is done.

  The cam plate 47 has a cam groove 47a that engages with a control butt 48a that projects downward from the needle bed tip 37, and is reciprocated in the longitudinal direction of the needle bed 33, that is, the direction perpendicular to the paper surface. The guide protrusion 48 that engages with the needle bed 34 is driven in a direction to advance and retreat. The drive mechanism for the cam plate 47 may be driven in the longitudinal direction by a mechanism as shown in FIG. For example, a rack may be provided on the extension of the cam plate 47 and engaged with a pinion attached to the output shaft of the motor. Similarly to FIG. 4 of the present application, it can also be driven directly in the direction of advancement and retreat to the mouth 34. The cover plate 50 is pressed from below so that the cam plate 47 does not separate from the lower surface of the needle bed substrate 48. The cover plate 50 may be fixed to the needle bed substrate 48 by a plurality of bolts 21 as a long bar, or may be divided into a plurality of plates.

  As described above, each needle bed 2, 3; 32, 33 has a needle bed body 6, 36 and a needle bed tip 7, 37. The needle bed main bodies 6 and 36 are fixed to the tooth openings 4 and 34 and support the movable sinker 11 so as to be able to swing and displace. The needle bed tips 7 and 37 are provided on the side of the tooth opening 4 and 34 with respect to the needle bed main bodies 6 and 36 and include portions that become the needle bed tip edges 7a and 37a. Displacement is possible. The teeth defined between the needle bed tip edges of the needle bed tips of the opposite needle beds by displacing the needle bed tips 7 and 37 that can be displaced in the withdrawing direction with respect to the tooth openings 4 and 34 in the withdrawing direction. The mouth dimension d can be changed. The movable sinker 11 is supported by the needle bed main bodies 6 and 36 so as to be swingable and displaceable. Since the needle bed main bodies 6 and 36 are fixed to the tooth openings 4 and 34, the needle bed tips 7 and 37 are displaced. Thus, even if the mouth opening dimension d is changed, the operating position of the movable sinker 11 can be prevented from changing.

  In addition, a drive mechanism is provided on the lower surface of the needle bed main bodies 6 and 36 so as to drive the needle bed tips 7 and 37 so that the needle bed tips 7 and 37 are displaced in the retracted direction with respect to the tooth mouths 4 and 34. , 33 can change the tooth size d independently of the knitting operation by the carriage provided on the upper surface side. The change in the mouth dimension d is not limited to the two stages of the narrow mouth position and the wide mouth position, but may be performed at more stages or at a larger dimension. Further, the needle bed tip edges 7 and 37a may be formed by penetrating a mouth wire such as a piano wire.

It is side surface sectional drawing which shows schematically the structure of the principal part of the flat knitting machine 1 which is one Embodiment of this invention. FIG. 2 is a side cross-sectional view showing a state in which the needle bed tip 7 is in a wide tooth position where the needle bed tip 7 is most retracted from the tooth opening 4 in the flat knitting machine 1 of FIG. 1. It is a figure which shows the shape of the main components which comprise the part shown in FIG. 1 and FIG. It is a top view which simplifies and shows the partial structure of the connection board 17 shown in FIG. 1 and FIG. It is a top view which simplifies and shows the structure of the upper surface side of the needle bed 2 of FIG. It is side surface sectional drawing which shows schematically the structure of the principal part of the flat knitting machine 31 which is the other form of implementation of this invention. FIG. 7 is a side cross-sectional view showing a state in which the needle bed tip 37 is at a wide tooth position where the needle bed tip 37 is most retracted from the tooth opening 34 in the flat knitting machine 31 of FIG. 6. It is a figure which shows the shape of the main components which comprise the part shown in FIG. 6 and FIG.

Explanation of symbols

1,31 Weft knitting machine 2,3; 32,33 Needle bed 4,34 Tooth mouth 5 Knitting needle 6,36 Needle bed main body 7,37 Needle bed tip 7b Recess 7a, 37a Needle bed tip edge 8,38 Needle bed substrate 8b Convex portions 9, 39 Needle plate 11 Movable sinker 11a Knitting yarn holding portion 17 Connection plate 18 Connection pin 19 Guide pin 22, 23 Drive source 47 Cam plate 48 Plate 48a Control butt

Claims (4)

At least a pair of front and back needle beds are arranged so as to face each other across the tooth opening, and a plurality of knitting needles are juxtaposed on the upper surface of each needle bed so as to be able to enter and leave the tooth opening. A flat knitting machine is provided with a movable sinker at the tip, and the movable sinker has a knitting yarn holding portion at the tip protruding from the tip edge of the needle bed to the tooth opening, and a movable sinker that can swing forward and backward at the tooth opening. In
Each needle bed
A needle bed main body fixed to the tooth opening and supporting the movable sinker so as to be able to swing and displace;
A needle bed tip which is provided on the side of the mouth of the needle bed and includes a needle bed tip edge, and is capable of displacement in the retracting direction with respect to the mouth;
A flat knitting machine provided with a movable sinker characterized by comprising: The needle bed main body and the needle bed tip have irregularities that fit together,
The concave and convex portions are formed such that the tip of the needle bed is slidable in the retracting direction relative to the tooth opening with respect to the needle bed main body, and the displacement in the other direction is restricted. A flat knitting machine comprising the movable sinker according to Item 1. The needle bed tip is formed by an assembly of a plurality of plates arranged side by side in the direction in which the knitting needles are arranged, and a continuous member penetrating the assembly in the direction of arrangement,
2. A drive projection for driving displacement in the retracting direction with respect to the tooth opening is provided below the needle bed from a plate arranged at intervals in the juxtaposed direction. A flat knitting machine comprising the movable sinker described.   The drive mechanism which drives so that the needle bed front-end | tip may be displaced in the withdrawing / retracting direction with respect to the tooth opening on the lower surface of the needle bed main body is provided. Flat knitting machine with a movable sinker.

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