WO2006070761A1

WO2006070761A1 - Weft knitting machine with movable sinker

Info

Publication number: WO2006070761A1
Application number: PCT/JP2005/023816
Authority: WO
Inventors: Toshinori Nakamori
Original assignee: Shima Seiki Manufacturing Limited
Priority date: 2004-12-27
Filing date: 2005-12-26
Publication date: 2006-07-06
Also published as: JP4348290B2; JP2006183181A

Abstract

A weft knitting machine with a movable sinker. A needle bed distal end edge (7a) is formed on the tooth mouth (4) side at the needle bed distal end (7), and tooth mouth dimension d is defined by the interval between the end edge and a needle bed distal end edge on the opposing needle bed (3) side. A protrusion (8b) is also formed on the tooth mouth (4) side of a needle bed substrate (8) and fitted to a recess (7b) formed at the needle bed distal end (7). Since the protrusion and recess structure is formed such that the needle bed distal end (7) can make sliding displacement with respect to the needle bed body (6) in the advancing/retracting direction to/from the tooth mouth (4) but displacement in the other directions is regulated, the needle bed distal end (7) is supported by the needle bed body (6) and the tooth mouth dimension d can be altered by sliding displacement in the advancing/retracting direction to/from the tooth mouth (4).

Description

Specification

Flat knitting machine with movable thin force

Technical field

[0001] The present invention relates to a flat knitting machine having a movable thin force capable of moving back and forth in the tooth opening at the tip of the needle bed on the tooth opening side.

Background art

[0002] Conventionally, a flat knitting machine having a movable thin force capable of moving back and forth with respect to the tooth mouth is used so as to push down the knitted fabric being knitted below the tooth mouth (for example, Japanese Patent Publication No. 5). — See publication No. 83657.) This movable thin force is arranged 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 thin force of the flat knitting machine, including such a movable thin force, has the basic function of forming a thin force loop between the knitting needles, where the tip protrudes from the needle bed more than the tip of the needle bed and draws the knitting yarn. To do. When the knitting needle pulls the knitting yarn, the previously formed stitch loop is knocked over. In order for the 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. A technique is also known 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, Japanese Patent No. 2694626).

In flat knitting machines where the front and back needle beds are facing each other across the mouth, the position of the tip of the needle bed defines the size of the mouth. Depending on the properties 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. There is also known a technique that allows the tip of the needle bed to be moved back and forth with respect to the needle bed so that the size of the mouth can be adjusted (for example, refer to the pamphlet of International Publication No. 2002Z046508).

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, it will be in a range that can be handled with a constant tooth size. However, in addition to the total needle knitting, the needle knitting knitting that uses the knitting needles for knitting only at a fixed number in the knitting needle array is also used. In a knitted fabric that is used, 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 performed by driving a cam mechanism mounted on a carriage that moves along the direction in which the knitting needles are arranged side by side. Changing the position of the floor is difficult because of the carriage. At least, it is impossible to change the position of the front and back needle beds during knitting.

The technology of Japanese Patent No. 2694626 can adjust the knockover timing at the position of the knitting needle to perform the knitting operation by operating the knockover plate together with the knitting needle with a cam mounted on the carriage. Tooth size cannot be changed according to the ground. The technology of WO 2002Z046508 pamphlet also moves the thin force provided at the needle bed tip. However, this thin force does not have a function to push down the knitted fabric that is not movable thin force.

If the technology of WO 2002Z046508 pamphlet is also applied to movable thin force as disclosed in Japanese Patent Publication No. 5-83657, the position of action of the movable thin force at the mouth will change as the size of the tooth mouth changes. . It is desirable that the action position does not change so that the movable thin force acts appropriately on the knitting yarn supplied with reference to the center of the mouth.

Disclosure of the invention

An object of the present invention is to provide a flat knitting machine equipped with a movable thin force 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 rear 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. The tip of the mouth side of the mouth is equipped with a movable thin force, and the movable thin force has a knitting yarn holding part at the tip part protruding from the needle bed tip edge to the tooth mouth, and can swing forward and backward in the tooth mouth. In flat knitting machines with movable thin force,

Each needle bed

A needle bed body which is fixed to the mouth and supports the movable thin force so as to be swingable and displaceable;

A needle bed tip which is provided on the side of the mouth of the needle bed and includes a portion serving as a needle bed tip edge and capable of displacement in the retracting direction with respect to the tooth mouth; It is a flat knitting machine provided with a movable thin force characterized by having.

Further, in the present invention, the needle bed main body and the needle bed tip have a concave and convex structure that fits each other,

The concavo-convex structure is formed so that the tip of the needle bed is capable of sliding displacement in the retracting direction with respect to the tooth opening with respect to the needle bed main body and restricts displacement in a direction other than the retracting direction. It is characterized by that.

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 that penetrates the assembly in the juxtaposition direction. The plate arranged with a gap is provided with a drive projection for driving displacement in the retracting direction with respect to the tooth opening, which protrudes from the lower surface of the plate.

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 retracting direction with respect to the tooth opening. Brief Description of Drawings

Objects, features and advantages of the present invention will become more apparent from the following detailed description and drawings.

FIG. 1 is a side cross-sectional view schematically showing a configuration of a main part of a flat knitting machine 1 which is an embodiment of the present invention.

FIG. 2 is a side cross-sectional view showing a state in which the needle bed tip 7 is in the wide tooth opening position where the needle bed tip 7 is most retracted from the tooth opening 4 in the flat knitting machine 1 shown in FIG.

FIG. 3 is an exploded cross-sectional view showing the shapes of the main components constituting the part shown in FIGS.

FIG. 4 is a plan view showing a partial configuration of the connecting plate 17 shown in FIGS. 1 and 2 in a simplified manner.

FIG. 5 is a plan view showing a simplified configuration of the upper surface side of the needle bed 2 of FIG.

FIG. 6 is a side cross-sectional view schematically showing a configuration of a main part of a flat knitting machine 31 which is another embodiment of the present invention. FIG. 7 is a side cross-sectional view showing a state in which the needle bed tip 37 is in the wide-toothed position where it is most retracted from the tooth-mouth 34 in the flat knitting machine 31 of FIG.

FIG. 8 is an exploded cross-sectional view showing the shapes of the main components constituting the part shown in FIGS.

BEST MODE FOR CARRYING OUT THE INVENTION

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

FIG. 1 schematically shows a configuration of main parts of a flat knitting machine 1 according to an embodiment of the present invention. The flat knitting machine 1 is arranged such that at least a pair of front and back needle beds 2 and 3 are opposed to each other with the tooth opening 4 interposed therebetween. The mouth 4 is inclined so that the center line 4a is vertical, and the needle beds 2 and 3 are inclined so that the side of the tooth 4 is high and the side away from the tooth 4 is low. Then, write one needle bed 2 horizontally. Since the direction of gravity is along the center line 4a, the knitted fabric is pulled down in the direction of the inclined center line 4a in the figure. Also, since one needle bed 2 and the other needle bed 3 are almost symmetrical across the center line 4a, the description of the other needle bed 3 is even simpler than the description of the one † bed 2. Shown in the form. 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, one needle bed 2 will be described, but 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 flat 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 can be used, such as a compound needle that opens and closes a hook with a slider that slides and displaces relative to the needle body.

The needle bed 2 is configured by combining a needle bed body 6 and a needle bed tip 7. The needle bed body 6 is configured by combining a needle bed substrate 8 and a needle plate 9. A needle bed tip edge 7a is formed on the side of the tooth opening 4 at the needle bed tip 7, and the tooth size d is defined by the distance between the needle bed tip edge on the opposite needle bed 3 side. Grooves 8a are formed in the needle bed substrate 8 at intervals corresponding to the parallel pitch of the knitting needles 5, and the lower part 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 tooth opening 4 side of the needle bed substrate 8, and is fitted with a concave portion 7 b formed at the needle bed tip 7. Ie needle bed The main body 6 and the needle bed tip 7 have a concavo-convex structure in which the concave portion 7b and the convex portion 8b are fitted to each other. This concavo-convex structure is formed so that the needle bed tip 7 is slidable in the protruding and retracting direction with respect to the tooth opening 4 with respect to the needle bed main body 6 and restricts the displacement in the direction other than the protruding and retracting direction. Therefore, the needle bed tip 7 is supported by the needle bed body 6 and the tooth gap dimension d can be changed by the sliding displacement in the retracting direction with respect to the tooth opening 4.

A movable thin force 11 is provided at the tip of the needle bed 2 on the side of the mouth 4. The movable thin force 11 has a knitting yarn holding portion 11a at the tip protruding from the needle bed tip edge 7a to the tooth opening 4, and can move forward and backward in the tooth opening 4. The oscillating displacement of the movable thin force 11 is made while being supported by the oscillating support portion l ib. The portion of the movable thin force 11 on the needle bed 2 is accommodated in a thin portion 9a (see FIG. 3) formed on the needle plate 9. A bearing recess 9b into which the swing support portion l ib of the movable thin force 11 is fitted is formed in the lower portion of the thin portion 9a. The movable thin force 11 is obtained by fitting the swinging support portion l ib into the support recess 9b so that the knitting yarn holding portion 11a follows the arcuate track near the center line 4a of the tooth mouth 4. It is possible to swing back and forth with respect to the tooth opening 4. In this forward / backward swing, the tangent of the trajectory of the movable thin force knitting yarn holder 11a is substantially parallel to the center line 4a. A wire spring 12 is attached to the upper part of the swing support portion l ib of the movable thin force 11. The wire spring 12 urges the movable thin force 11 so that the knitting yarn holding portion 11 a is brought close to the needle bed tip 7 by the swinging displacement of the movable thin force 11.

The upper part of the movable thin force 11 is pressed so as to remain in the thin 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 part of the wire spring 12 is received by a step formed at the upper end of the needle plate 9 and closer to the tooth opening 4 than the band 13. A spacer 14 is disposed above the knitting needle 5 on the side of the movable sink 11 that remains on the thin-walled portion 9 a of the needle plate 9. The upper part of the spacer 14 is also held down 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-walled portion 9a of the needle plate 9 is removed, and the movable thin force 11 is accommodated. That is, the needle plate 9 is formed with a thin portion 9a only on the other side. If each knitting needle 5 is used as a reference, both sides of the knitting needle 5 in the juxtaposed direction are sandwiched between needle plates 9. The one side faces the back side of the thin portion 9a of the needle plate 9, and the other side faces the thin portion 9a. A transfer blade 16 is provided on one side of the knitting needle 5 so that the knitting needle can be advanced to the tooth opening 4 and passed from the opposing needle bed 3 to the knitting needle.

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 in which the needle bed tip 7 is most advanced to the tooth opening 4 and becomes the narrow tooth opening position. At the narrow mouth position, the tooth gap dimension d between the facing needle bed 3 is the smallest. This tooth dimension d is equivalent to a flat knitting machine of the same gauge that does not have a function to change the tooth dimension d, and the narrow tooth position is the 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 tooth 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 a connecting plate 17 for example. As shown in FIG. 4 to be described later, a guide groove 17b with which the connection pin 18 engages is formed in the connection plate 17 in the direction from the front to the back of the page, and a guide groove 17a with which the fixing pin 19 engages is formed. It is formed so as to include a portion that changes from the front to the back of the paper and also in the horizontal direction of the paper. That is, the connecting plate 17 is formed with a guide groove 17b that engages with the connecting pin 18 along the longitudinal direction thereof. The connecting plate 17 is formed with a guide groove 17a that extends in the longitudinal direction and is spaced apart from the guide groove 17b and that engages with the fixing pin 19. The guide groove 17a is formed such that the other end in the longitudinal direction is further away from the guide groove 17b than the one end in the longitudinal direction. If the connecting plate 17 is slid in the direction of force from the front to the back of the paper, that is, from the other end in the longitudinal direction to the one end, the lower end is guided to the connecting plate 17 and the upper end is fixed to the needle bed substrate 8. The fixed pin 19 is guided to the guide groove 17a, and the connecting pin 18 fixed to the needle bed tip 7 is guided to the guide groove 17b, so that the distance between the fixed pin 19 and the connecting pin 18 is further increased. Thus, the connecting plate 17 can be driven in the horizontal direction of the paper surface, that is, the tooth mouth 4 side, and therefore, the needle bed tip 7 can be driven in the direction to advance to the tooth mouth 4 via the connecting pin 18. . 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. In the figure, cover plate 20 is long and one Although shown as a bar, a short board can be divided into a plurality of parts.

FIG. 3 shows the shapes of the main parts constituting the part shown in FIGS. The wire spring 12, the movable thin force 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 side by side. The needle bed tip 7 and the needle bed substrate 8 have a length exceeding the range in which the knitting needles 5 are juxtaposed as the length necessary in the juxtaposition direction of the knitting needles 5, which is 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 the connecting pins 18 and the fixing pins 19 may be provided in the longitudinal direction of the connecting plate 17 with a gap larger than the parallel pitch of the knitting needles 5.

FIG. 4 shows a configuration of the connecting plate 17 provided on the lower surface side of the needle bed 2 shown in FIGS. The connecting plate 17 is supported by, for example, link mechanisms provided at both ends of the needle bed substrate 8 in the longitudinal direction, and reciprocates and slides 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. is there. 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 connection pin 18. A mechanism as shown in FIG. 7 of WO 2002/046508 pamphlet can also be used to convert the driving force in the longitudinal direction into the driving force in the forward and backward direction toward the mouth 4.

FIG. 5 shows a simplified configuration of the upper surface side of the needle bed 2 in FIG. The movable thin force 11 is adjacent on one side of the knitting needle 5 with the needle plate 9 interposed, and is directly adjacent on the other side. In the portion of the movable thin force 11 that protrudes toward the tooth opening 4 side, 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 thin force 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 with the movable thin force 11 can press the thin force loop S at the center of the adjacent knitting needles 5 when the knitting needles 5 form the stitches.

Since the movable thin force 1 1 is supported on the side of the gold declining body 6 fixed to the mouth 4, the needle bed tip 7 moves backward from the mouth 4 as shown in FIG. Even if the needle bed tip edge 7a moves to the wide mouth position as shown by the broken line, the position relative to the tooth mouth 4 can be prevented from changing. 6 and 7 schematically show the configuration of the main part of a flat knitting machine 31 which is another embodiment of the present invention. 6 and 7, parts corresponding to the flat knitting machine 1 shown in FIG. 1 are given the same reference numerals, and redundant description is omitted. Figure 6 shows the narrow mouth position similar to Figure 1, and Figure 7 shows the wide mouth position similar to Figure 2. Also in the flat knitting machine 31, the front and back needle beds 32, 33 are opposed to each other with the mouth 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 end 37 is not directly engaged with the needle bed board 38 and is arranged on the side of the tooth mouth 34 of the needle bed board 38. A needle plate 39 is erected on the needle bed base plate 38 in the direction in which the plurality of knitting needles 5 are arranged at the same pitch as the arrangement pitch between the knitting needles 5, and the needle that accommodates the knitting needles 5 between the needle plates 39. A groove 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 thin force 11 on the side of the mouth 34 in the same manner as the needle plate 9 in FIG. The needle bed tip 37 is formed as an aggregate 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 assembly 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 passes through this assembly in the direction in which the plates 48 are arranged in parallel. It is formed. A control butt 48a as a drive protrusion for driving the displacement in the retracting direction with respect to the tooth mouth 4 protrudes from a part of the plate 48 arranged at intervals in the parallel direction, that is, the lower surface of the plate 48. To do. By the sliding displacement of the needle bed tip 37 with respect to the tooth opening 34 in the retracting direction, the force S can be changed by changing the tooth gap dimension d, which is the distance between the needle bed tip edges 37a facing each other at the tooth mouth 34. The needle bed tip 37 is formed by the band 43 penetrating through an assembly of a plurality of plates 48, so that it is easy to process and can be reduced in weight. If the control butt 48a as a driving projection is engaged with the cam groove of the plate cam, 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 near 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. Wire spring 1 2. The movable thin force 11, the band 13, the spacer 14 and the knitting needle 5 are the same as those shown in FIG. The needle plate 39 is also provided with a through-hole 39c through which the band 43 passes, in addition to the thin portion 39a and the 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 37b formed in the plate 48 serving as the needle bed distal end 37 is formed in the thickness direction and the width direction of the band 43 with substantially the same dimensions as the thickness and width of the band 43. Although the thickness of the through hole 39c provided in the needle plate 39 is almost the same as that of the strap 43, the width direction is made larger than that of the strap 43, and the needle bed tip 37 is formed to allow forward and backward displacement 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 projection 48 that engages with 7a is driven in the direction to advance and retract to the needle bed 34. The drive mechanism of the cam plate 47 may be driven in the longitudinal direction by a mechanism as described in FIG. 7 of WO 2002/046508 pamphlet. For example, a rack may be provided on the extension of the cam plate 47 and driven by being engaged with a pinion attached to the output shaft of the motor. Similarly to FIG. 4 of the present application, it is also possible to drive directly in the direction of advancement and retraction to the tooth opening 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 divided into a plurality of plates that may be fixed to the needle bed substrate 48 by a plurality of bolts 21 as long bars.

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 mouths 4 and 34 and support the movable thin force 11 so as to be swingable and displaceable. The needle bed tips 7 and 37 are provided on the side of the teeth 4 and 34 with respect to the needle bed main bodies 6 and 36 and include portions that become the needle bed tips 7a and 37a. Displacement is possible. It is defined between the needle bed tip edges of the needle bed tip of the opposite needle bed by displacing the needle bed tip ends 7 and 37 that can be displaced in the withdrawal direction with respect to the teeth 4, 34 Tooth size d can be changed. The movable thin force 11 is supported by the needle bed main bodies 6 and 36 so as to be swingable and displaceable, and the needle bed main bodies 6 and 36 are fixed to the tooth openings 4 and 34 so that the needle bed tips 7 and 37 are displaced. Even if the tooth mouth dimension d is changed, the operating position of the movable thin force 11 does not change. In addition, a drive mechanism is provided on the lower surface of the needle bed main body 6, 36 to drive the needle bed tip 7, 37 force S tooth opening 4, 34 to move in the retracted direction, so that the needle beds 2, 3; Tooth size d can be changed independently of the knitting operation by a carriage or the like provided on the upper surfaces of 32 and 33. The change in the tooth gap dimension d may be performed in more stages or in larger dimensions than just the two stages of the narrow mouth position and the wide mouth position. Furthermore, the needle bed tip edge 7, 37a may be formed by penetrating a mouth wire such as a piano wire.

The present invention can be implemented in various other forms without departing from the spirit or main features thereof. Therefore, the above-described embodiment is merely an example in all respects, and the scope of the present invention is shown in the scope of claims, and is not limited to the text of the specification. Further, all modifications and changes belonging to the scope of claims are within the scope of the present invention.

Industrial applicability

According to the present invention, at least the pair of front and rear needle beds arranged so as to face each other with the flat knitting machine facing each other is provided with a movable thin force at the front end of the needle bed rather than the front edge of the needle bed. It has a knitting yarn holder at the tip that protrudes into the mouth, and can swing back and forth in the mouth. Each needle bed is fixed to the mouth and is provided on the tooth bed side with respect to the needle bed main body and the needle bed main body for supporting the movable thin force so as to be swingable and displaceable. It has a needle bed tip that includes an edge portion and can be displaced in and out of the mouth. By displacing the tip of the needle bed in the retracting direction, the size of the tooth opening 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 thin force is supported by the needle bed main body so that it can swing and displace, and the needle bed main body is fixed to the tooth opening, so even if the tip of the needle bed is displaced and the tooth opening size is changed, it can move. The acting position of the thin force can be prevented from changing.

Further, according to the present invention, the needle bed main body and the needle bed tip have an uneven structure that fits together. With this concavo-convex structure, 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 is supported so as to restrict displacement in directions other than the retracting 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 protrusion is engaged with the cam groove of the plate cam, etc., the force S can be changed by driving the tooth mouth in the retracting direction.

Further, according to the present invention, the driving mechanism is provided on the lower surface of the gold declining body so as to drive the tip of the gold declining so as to be displaced in the retracting direction with respect to the tooth opening. With the drive mechanism, the size of the mouth can be changed independently of the knitting operation by the carriage etc. provided on the upper surface side of the needle bed.

Claims

The scope of the claims

[1] At least a pair of front and rear needle beds are arranged so as to face each other across the mouth, and a plurality of knitting needles are juxtaposed on the upper surface of each needle bed so as to be able to move in and out of the mouth. Movable thin force is provided at the tip of the tooth mouth side. The movable thin force has a knitting yarn holding part at the tip part protruding from the needle bed tip edge to the tooth mouth, and can move forward and backward in the tooth mouth. In a flat knitting machine equipped with force, each needle bed

A needle bed tip which is provided on the side of the mouth of the needle bed and includes a portion serving as a needle bed tip edge and capable of displacement in the retracting direction with respect to the tooth mouth;

A flat knitting machine provided with a movable thin force characterized by having.

[2] The needle bed main body and the needle bed tip have a concavo-convex structure that fits to each other, and the concavo-convex structure has a needle bed tip with respect to the needle bed main body, and a direction in which the needle bed moves in and out. 2. The flat knitting machine having a movable thin force according to claim 1, wherein the flat knitting machine is configured to be capable of sliding displacement and to regulate displacement in a direction other than the retracting direction.

[3] The tip of the needle bed 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 that penetrates the assembly in the juxtaposition direction,

The plate arranged at an interval in the juxtaposed direction is provided with a drive projection for driving displacement in the retracting direction with respect to the tooth opening, protruding from the lower surface thereof. A flat knitting machine comprising the movable thin force according to Item 1.

[4] The force according to any one of claims 1 to 3, wherein a 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 a retracted direction relative to the tooth opening. A flat knitting machine with the movable thin force described in 4.