flat knitting machine

Abstract

A knitting machine capable of automatically switching timing of oscillation of a knitting member is provided. The knitting machine includes a needle bed, a yarn feeder, a cam carriage, a knitting member, and a sub-cam system. The sub-cam system advances and retracts the knitting member toward a tooth gap and oscillates the knitting member in a direction intersecting with the advancing and retracting direction of the knitting member. The sub-cam system includes a fixed cam, a movable cam, a displacement mechanism, and a plurality of pressing portions each pressing the knitting member with a different width, at least one of the plurality of pressing portions being formed on the movable cam. The knitting member includes a piece butt for the fixed cam to act on and a pressure receiving portion for any one of the plurality of pressing portions to act on. The pressing portion acting on the pressure receiving portion is switched by displacement of the movable cam by the displacement mechanism.

Description

Technical Field

[0001] This invention relates to a flat knitting machine with knitting components that assist in knitting fabrics. Background Technology

[0002] A flat knitting machine includes a needle bed, a yarn feeder, and a cam carriage. The needle bed supports multiple knitting needles, allowing them to move freely forward and backward. The yarn feeder moves along the length of the needle bed, supplying knitting yarn to it. The cam carriage has a main cam system that acts on the knitting needles to perform knitting movements. Patent Documents 1 and 2 disclose flat knitting machines that, in addition to the needle bed, yarn feeder, and cam carriage, also include a knitting member and a secondary cam system. The knitting member is a rod-shaped component that assists in the knitting of the fabric. In Patent Document 1, the knitting member is referred to as a pressing member. In Patent Document 2, the knitting member is referred to as an actuating member. The secondary cam system causes the knitting member to move forward and backward toward the needle teeth and oscillates the knitting member in a direction intersecting the forward and backward movement of the knitting member. The secondary cam system is mounted on the cam carriage.

[0003] In Patent Document 1, a padding knit is implemented. Padding knit involves weaving a padding yarn that extends along the knit width direction of the fabric into the fabric. In the flat knitting machine of Patent Document 1, a knitting member assists in weaving the padding yarn into the fabric. The knitting member contacts the padding yarn from above and oscillates to press the padding yarn downward toward the teeth.

[0004] Patent Document 2 describes a flat knitting machine capable of switching between normal yarn-padded knitting and reverse yarn-padded knitting. Normal yarn-padded knitting is a knitting method in which the main yarn and the filler yarn are overlapped to knit a fabric. The main yarn is positioned on the right side of the fabric. Reverse yarn-padded knitting is a knitting method in which the filler yarn is positioned on the right side of the fabric, utilizing both the main yarn and the filler yarn. In the flat knitting machine of Patent Document 2, the switching between normal yarn-padded knitting and reverse yarn-padded knitting is achieved by the knitting member acting on the main yarn and the filler yarn. The knitting member advances towards a lower position relative to the main yarn and the filler yarn, contacting them from below. Furthermore, although not described in Patent Document 2, it is also possible to advance the knitting member towards a lower position than the main yarn and the filler yarn by oscillating the knitting member.

[0005] [Existing technical documents]

[0006] [Patent Literature]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 8-13293

[0008] [Patent Document 2] International Publication No. 2018 / 186499 Summary of the Invention

[0009] [The problem the invention aims to solve]

[0010] In Patent Document 1 and Patent Document 2, the timing of the knitting member's oscillation is different. That is, the shapes of the sub-triangle systems that cause the knitting member to oscillate are different in Patent Document 1 and Patent Document 2. Therefore, in conventional flat knitting machines, if the timing of the knitting member's oscillation is to be changed, the sub-triangle system needs to be replaced each time.

[0011] In view of the above, one of the objectives of the present invention is to provide a timing flat knitting machine that automatically switches the swing of the knitting components.

[0012] [Methods used to solve problems]

[0013] <1> The flat knitting machine of the present invention comprises:

[0014] The needle bed supports the knitting needles, allowing them to move freely forward and backward.

[0015] The yarn guide supplies knitting yarn to the needle bed;

[0016] The tripod carriage has a main tripod system that enables the knitting needles to perform knitting actions.

[0017] Knitting components, assisting in the knitting of the fabric on the needle bed; and

[0018] The secondary delta system is mounted in the delta carriage at a position higher than the primary delta system.

[0019] The secondary triangular system causes the braiding member to move forward and backward toward the toothed edge, and also causes the braiding member to swing in a direction intersecting the forward and backward direction of the braiding member.

[0020] in,

[0021] The secondary triangular system has the following features:

[0022] The fixed triangle is configured to remain stationary relative to the triangle seat slide.

[0023] The movable triangle is configured to slide freely toward the toothed opening;

[0024] The displacement mechanism changes the position of the movable triangle relative to the fixed triangle; and

[0025] Multiple pressing parts press the braiding member in a direction intersecting the forward and backward direction of the braiding member.

[0026] The plurality of pressing parts each press on a different width of the woven component.

[0027] At least one of the plurality of pressing parts is formed in the movable triangle.

[0028] The woven component includes:

[0029] Plate heel, the fixed triangle acting on the plate heel; and

[0030] The pressure receiving part is where any one of the plurality of pressing parts acts on the pressure receiving part.

[0031] The pressing part acting on the pressure part is switched by the displacement of the movable triangle.

[0032] <2> As mentioned above <1> One possible method for using the aforementioned flat knitting machine is...

[0033] The plurality of pressing parts include a first pressing part and a second pressing part, wherein the width of the second pressing part is larger than that of the first pressing part.

[0034] The knitting member, which oscillates due to the first pressing part, contacts the knitted yarn from a position above the knitted yarn.

[0035] The knitting member, which oscillates via the second pressing portion, contacts the knitting yarn from a position lower than the knitting yarn.

[0036] <3> As mentioned above <2> One possible method for using the aforementioned flat knitting machine is...

[0037] The first pressing part and the second pressing part are formed on the movable triangle.

[0038] <4> As mentioned above <1> to <3> One possible method for using the aforementioned flat knitting machine is...

[0039] The at least one pressing part is configured to be freely detachable.

[0040] <5> As mentioned above <1> to <4> One possible method for using the aforementioned flat knitting machine is...

[0041] The pressure-bearing portion is positioned in the braided member closer to the tooth than the heel.

[0042] [Invention Effects]

[0043] In the flat knitting machine described in <1> above, at least two pressing parts can be switched by means of a movable triangle configured to slide freely in the forward and backward direction of the knitting member. Therefore, according to this flat knitting machine, the timing of the oscillation of the knitting member can be changed by displacing the movable triangle. In this flat knitting machine, when it is desired to change the timing of the oscillation of the knitting member, it is not necessary to replace the secondary triangle system each time.

[0044] In the flat knitting machine described in <2> above, it is possible to switch between the action of the knitting member contacting the knitting yarn from above and the action of the knitting member contacting the knitting yarn from below. The action of the knitting member contacting the knitting yarn from above is used, for example, for padding knitting or float knitting. The action of the knitting member contacting the knitting yarn from below is used, for example, for switching from padding knitting to reverse padding knitting.

[0045] In the flat knitting machine described in <3> above, the first pressing part and the second pressing part can be switched simply by arranging the first pressing part and the second pressing part in the sliding direction of the movable triangle. Therefore, the structure of the sub-triangle system can be simplified.

[0046] In the flat knitting machine described in <4> above, the pressing part formed in the movable triangle is designed to be freely detachable, so that the timing of the swing of the knitting component can be changed simply by replacing the pressing part.

[0047] In the flat knitting machine described in <5> above, the front end of the knitting member swings around the heel as a fulcrum. If a pressure-bearing part is formed closer to the toothed edge than the heel, the front end of the knitting member can swing significantly even if the protrusion of the pressure-bearing part is small. Therefore, it is not necessary to increase the protrusion of the pressure part, and the sub-triangle system is difficult to scale up. Attached Figure Description

[0048] Figure 1 This is a schematic structural diagram of the area near the toothed edge of the flat knitting machine in the embodiment of the invention.

[0049] Figure 2 yes Figure 1 A rough side view of the displacement mechanism and movable triangle of the flat knitting machine.

[0050] Figure 3 This is an explanatory diagram showing the positional relationship between the movable triangle positioned in the first position and the displacement mechanism.

[0051] Figure 4 (A) is an explanatory diagram showing the positional relationship between the movable triangle positioned in the first position and the coil pressure plate. Figure 4 (B) is observed along the direction of B. Figure 4 A schematic diagram of the movable triangle shown in (A).

[0052] Figure 5 This is an explanatory diagram showing the positional relationship between the movable triangle positioned in the second position and the displacement mechanism.

[0053] Figure 6 This is an explanatory diagram showing the positional relationship between the movable triangle positioned in the second position and the coil pressure plate.

[0054] Figure 7This is an explanatory diagram showing the correspondence of all triangles when using a movable triangle positioned in the first position for weaving.

[0055] Figure 8 It means Figure 7 A schematic diagram of the positional relationship between the knitting needle and the coil pressure plate of timing A.

[0056] Figure 9 It means Figure 7 A schematic diagram of the positional relationship between the knitting needle and the coil pressure plate of timer B.

[0057] Figure 10 It means Figure 7 A schematic diagram of the positional relationship between the knitting needle and the coil pressure plate of the timing C.

[0058] Figure 11 This is an explanatory diagram showing the correspondence of all triangles when the movable triangle in the second position is used for reverse yarn addition.

[0059] Figure 12 It means Figure 11 A schematic diagram of the positional relationship between the knitting needle and the coil pressure plate of the timing D.

[0060] Figure 13 It means Figure 11 A schematic diagram of the positional relationship between the knitting needle and the coil pressure plate of the timing E.

[0061] Figure 14 It means Figure 11 A schematic diagram of the positional relationship between the knitting needle and the coil pressure plate of the timing F.

[0062] Figure 15 This is a schematic structural diagram of the movable triangle in the modified example.

[0063] Figure 16 (A) is a schematic diagram of a structural example in which a first pressing part is formed on a fixed triangle. Figure 16 (B) is with Figure 16 (A) A schematic diagram of different structural examples.

[0064] [Explanation of reference numerals in the attached figures]

[0065] 1. Flat knitting machine

[0066] 1B Needle Bed, 1F Needle Bed, 1G Toothed Grip, 1U Auxiliary Needle Bed

[0067] 10 Triangular Seat Carriage

[0068] 10B bracket section, 10P secondary triangle plate

[0069] 10H Protruding part

[0070] 11, 12 Yarn feeders, Y1, Y2 knitting yarn

[0071] 15 Adsorption section

[0072] 19 knitting needles, 19F crochet hook

[0073] 2. Woven components

[0074] 2P front end, 2M armature

[0075] 20 Main body, 21 Heel plate, 22 Pressure-bearing part, 25 Spring plate part

[0076] 3. Sub-triangle system

[0077] 30 Pressing section

[0078] 31 First pressing part, 32 Second pressing part, 32L, 32R Dividing pieces

[0079] 310, 320 Mountain section; 311, 312, 321, 322 Sloping section

[0080] 4. Fixed triangle

[0081] 40 Groove, 45 Recess, 46 Protrusion

[0082] 5 movable triangles

[0083] 5P sales

[0084] 50 plate-shaped main body, 52 disassembly and assembly holes, 56 snap-fit ​​holes

[0085] 6. Displacement Mechanism

[0086] 60 solenoid, 60P plunger

[0087] 61 rod, 61A rotating shaft, 61B first arm, 61C second arm

[0088] 62 Switching triangle, 62C Engaging shaft section, 62G Triangular groove

[0089] 621 First step section, 622 Second step section, 623 Inclined section

[0090] 63 Springs

[0091] 65 recess

[0092] 9. Main Triangle System

[0093] 90 Knitting triangle, 91 Cast-on triangle, 92 Curved triangle

[0094] 94 Yarn Pressing Triangle Detailed Implementation

[0095] <Implementation Method 1>

[0096] Hereinafter, an example of an embodiment of the flat knitting machine of the present invention will be described based on the accompanying drawings. The same reference numerals in the drawings denote the same or equivalent parts.

[0097] [Overall Structure]

[0098] Figure 1 The flat knitting machine 1 shown in this example is a two-needle bed flat knitting machine. Unlike this example, the structure of the present invention can also be applied to a four-needle bed flat knitting machine. The flat knitting machine 1 in this example includes needle beds 1F and 1B, a yarn feeder 11, a cam carriage 10, a knitting component 2, and a secondary cam system 3. One feature of the flat knitting machine 1 in this example is the structure of the secondary cam system 3. The various structures of the flat knitting machine will be described in detail below.

[0099]

Needle Bed

[0100] exist Figure 1 Only a portion of the structure of needle beds 1F and 1B is shown. Needle beds 1F and 1B each have multiple knitting needles 19 for knitting fabrics. Needle beds 1F and 1B are fixed to the frame of the flat knitting machine 1 (not shown). Needle beds 1F and 1B are arranged in a V-shape with the front ends of the knitting needles 19 facing each other. A toothed joint 1G is formed between the upper ends of needle beds 1F and 1B. The knitting needles 19 of needle beds 1F and 1B can be latch needles or composite needles with guide plates. An auxiliary needle bed 1U with multiple knitting components is arranged above needle beds 1F and 1B.

[0101] Yarn feeder

[0102] The yarn feeder 11 is positioned above the toothed nozzle 1G, supplying knitting yarn Y1 to the toothed nozzle 1G. Figure 1 The diagram shows a single yarn feeder 11, but the flat knitting machine 1 has multiple yarn feeders 11. The knitting yarn Y1 supplied to the toothed 1G is hooked onto the hook of the needle 19 and is pulled into the needle bed 1F or needle bed 1B to form a loop.

[0103] The yarn feeder 11 is configured to be able to feed yarn in the length direction of the needle beds 1F and 1B ( Figure 1 It moves along the paper depth direction. The yarn feeder 11 can be self-propelled or connected to the triangular carriage 10.

[0104]

Triangle-shaped slide

[0105] The triangular seat carriage 10 is a component that reciprocates along the length of the needle beds 1F and 1B. Figure 1Only a very small portion of the cam carriage 10 is shown. The cam carriage 10 has a main cam system 9 that acts on the knitting needle 19. The main cam system 9 is a known structure, for example, as described in Japanese Patent Publication No. 7-33619. Figure 7 As shown, the main cam system 9 includes a knitting cam 90 that enables the knitting needle 19 to perform knitting operations. The knitting cam 90 includes a starting cam 91 that advances the knitting needle 19 towards the toothed edge 1G and a yarn-bending cam 92 that retracts the knitting needle 19 from the toothed edge 1G. Although in Figure 7 The details are omitted, but the main cam system 9 has a loop-shifting cam that acts on the needle 19 when the loop moves.

[0106] like Figure 1 As shown, a secondary triangle plate 10P equipped with a secondary triangle system 3 is mounted on the triangle carriage 10. A protrusion 10H is formed on the secondary triangle plate 10P. An adsorption mechanism including multiple adsorption parts 15 is provided on the portion of the protrusion 10H opposite to the knitting member 2. The multiple adsorption parts 15 are arranged at intervals along the length direction of the needle beds 1F and 1B.

[0107]

Woven Components

[0108] The flat knitting machine 1 has multiple knitting components 2. Each knitting component 2 is a long strip of board that assists in knitting the fabric. Functionally, each knitting component 2 is configured in a one-to-one correspondence with each knitting needle 19. In this example, the number of knitting components 2 is the same as the number of knitting needles 19. However, unlike this example, the number of knitting components 2 may also be less than the number of knitting needles 19.

[0109] In this example, the knitting component 2 is a loop presser. A loop presser is, for example, a component that acts on the knitting yarn Y1 extending from the yarn feeder 11 to assist in the formation of loops. The loop presser assists in the formation of loops on needles 19 located opposite each other across the tooth 1G. For example, a loop presser positioned above the needle bed 1F assists in the formation of loops on needles 19 of the needle bed 1B. Unlike this example, the knitting component 2 could also be, for example, a yarn guide, a loop transfer foot, or a movable sinker.

[0110] As described in Patent Document 1, the coil pressure plate in this example assists in positioning the padding yarn at the desired position during padding knitting, or, as described in Patent Document 2, assists in switching from normal padding knitting to reverse padding knitting. The coil pressure plate is positioned on the auxiliary needle bed 1U. The coil pressure plate is freely positioned towards the toothed edge 1G. Furthermore, the front end 2P of the coil pressure plate facing the toothed edge 1G is positioned in a direction intersecting the forward and backward direction (see reference). Figure 1 The arrows at both ends swing freely.

[0111] In this example, the knitting member 2, which serves as a coil pressure plate positioned above the needle bed 1F, will be described. Therefore, the directions in the accompanying drawings are defined based on the knitting member 2 positioned above the needle bed 1F. First, the direction along the length of the knitting member 2 towards the toothed edge 1G is defined as the F direction, and the opposite direction of the F direction is defined as the B direction. The F direction is the approach direction of the knitting member 2, and the B direction is the retraction direction of the knitting member 2. That is, the approach and retraction directions of the knitting member 2 are the FB direction, which includes both the F and B directions. Next, the direction perpendicular to the plane where the flat knitting machine 1 is set is defined as the U direction, and the opposite direction of the U direction is defined as the L direction. The UL direction, which includes both the U and L directions, is orthogonal to the FB direction. In this example, the swing direction of the front end 2P of the knitting member 2 is the UL direction. The direction orthogonal to both the approach and retraction directions and the swing direction of the knitting member 2 is consistent with the length direction of the needle bed 1F. The swing direction of the front end 2P of the knitting member 2 is not limited to the UL direction, as long as it intersects the FB direction within the plane that includes both the FB and UL directions.

[0112] For details regarding braided component 2, please refer to... Figure 4 (A) Figure 4 Figure (A) shows the correspondence between the braided component 2 and the sub-triangle system 3, which will be described later. In this figure, to facilitate understanding of the correspondence between the braided component 2 and the sub-triangle system 3, the braided component 2 is shown as a side view with a different orientation than the actual orientation. In the braided component 2, the left direction on the paper is the U direction, and the right direction is the L direction.

[0113] The knitting component 2 includes a main body 20 and a spring sheet portion 25 branching from the main body 20. The front end 2P of the main body 20 is the portion that acts on the knitting yarn Y1. An armature 2M is disposed at the rear end of the main body 20. Figure 1 As shown, the armature 2M is arranged opposite to the adsorption part 15.

[0114] The spring plate portion 25 is a rod-shaped piece that is cantilevered and connected to the main body portion 20. The end of the spring plate portion 25 is connected to the auxiliary needle bed 1U (…). Figure 1 Contact. Through the elastic force of the spring plate 25, the main body 20 is pushed towards the secondary triangle plate 10P.

[0115] The main body 20 has a heel 21 and a pressure-receiving portion 22 protruding in the U direction (leftward direction on the paper). The heel 21 is a structure for advancing and retreating the knitting member 2. The pressure-receiving portion 22 is positioned on the F-direction side relative to the heel 21. The pressure-receiving portion 22 is a structure for swinging the front end 2P of the knitting member 2. In this example, the pressure-receiving portion 22 is a protrusion with the same shape as the heel 21. The specific advancing and retreating movements and swinging movements of the knitting member 2 will be described later. Unlike this example, the positions of the heel 21 and the pressure-receiving portion 22 may also be reversed.

[0116] Secondary Triangle System

[0117] The secondary delta system 3 is mounted on the secondary delta plate 10P. The description of the secondary delta system 3 mainly refers to... Figures 2 to 4 . Figure 3 Viewed from the L direction Figure 2 A diagram showing a portion of the sub-triangular system 3. Figure 4 (A) is a diagram showing the correspondence between the fixed triangle 4 and the movable triangle 5 as viewed along the U direction and the woven component 2. Figure 4 (B) is a diagram of the movable triangle 5 as viewed from the direction of B.

[0118] like Figure 2 As shown, the secondary triangle system 3 includes: a fixed triangle 4, fixed to the secondary triangle plate 10P; a movable triangle 5, configured to slide freely toward the toothed jaw 1G; and a displacement mechanism 6, which changes the position of the movable triangle 5 relative to the fixed triangle 4. The secondary triangle plate 10P is mounted on the triangle seat carriage 10 via a bracket portion 10B. Figure 1 The secondary triangular system 3 also has multiple pressing parts 30 ( Figure 4 Each pressing part 30 is a structure for causing the braiding member 2 to swing in a direction that intersects with the forward and backward direction of the braiding member 2.

[0119] Fixed triangle 4 is used to move the braided component 2 forward and backward. For example... Figure 4 As shown, the fixed triangle 4 in this example has a groove 40 that meanders in the F and B directions. Figure 4 The left and right directions are the reciprocating directions of the triangular carriage 10. The heel 21 of the braided member 2 is embedded in the groove 40. With the reciprocating motion of the triangular carriage 10, the heel 21 is guided by the groove 40, thereby causing the braided member 2 to enter in the F direction or retract in the B direction. In this example, the groove 40 forms a single route without branches. Unlike this example, the groove 40 may also have branches for forming multiple paths. For example, the groove 40 may also be a route that branches into multiple routes midway, and then merges the branched routes into a single route.

[0120] The quadrilateral shown by the double-dotted line overlapping a portion of the groove 40 indicates the position where the adsorption part 15 is disposed. The structure of the adsorption part 15 can utilize a known structure. When the heel 21 is disposed in the position corresponding to the adsorption part 15, the armature 2M of the braided member 2 is adsorbed by the adsorption part 15, and the heel 21 disengages from the groove 40. In this way, the braided member 2 will not move forward or backward. When the adsorption surface of the magnetic pole of the adsorption part 15 is demagnetized, the armature 2M leaves the adsorption surface. That is, the presence or absence of the forward and backward movement of the braided member 2 can be controlled by the ON / OFF (start / stop) of the adsorption part 15.

[0121] Furthermore, the fixed triangle 4 includes a recess 45 for mounting the movable triangle 5 (described later) and a protrusion 46. The recess 45 is a depression formed on the surface facing the U direction at the F-direction end of the fixed triangle 4. The protrusion 46 extends in the F-direction relative to the rest of the fixed triangle 4. This protrusion 46 further extends in the U-direction.

[0122] The movable triangle 5 is composed of a plate-shaped main body 50 that is freely mounted on the secondary triangle 10P. The movable triangle 5 is positioned in the recess 45 of the fixed triangle 4 and is held between the secondary triangle 10P and the fixed triangle 4 (see reference). Figure 2 The movable triangle 5 has a locking hole 56 at its center. The locking hole 56 extends through the thickness direction of the plate-shaped body 50. The protrusion 46 of the fixed triangle 4 is inserted into the locking hole 56. Therefore, the movable triangle 5, held by the sub-triangle 10P and the fixed triangle 4, is kept from falling off the sub-triangle 10P.

[0123] In this example, the movable triangle 5 is configured to slide along the recess 45 of the fixed triangle 4 in the B or F direction. The sliding direction of the movable triangle 5 is parallel to the forward and backward direction of the braided member 2. Figure 4 In (A), the movable triangle 5 is positioned at a first position near the edge of the recess 45 in the B direction. (As will be described later...) Figure 6 The image shows the movable triangle 5 sliding in the F direction and positioned in a second position away from the edge of the recess 45 in the B direction. Unlike this example, the movable triangle 5 could also be configured to slide in the F direction... Figure 4 The sliding direction is either right-hand or left-hand. The tilting direction is between the forward and backward direction of the braiding member 2 and the moving direction of the triangular seat slide 10, which is orthogonal to the forward and backward direction. In this case, the movable triangle 5 also slides at least in the forward and backward direction of the braiding member 2.

[0124] The movable triangle 5 has two first pressing portions 31 that clamp the engaging holes 56 in the reciprocating direction of the triangle base slide 10, and two second pressing portions 32 that clamp the engaging holes 56 in the reciprocating direction of the triangle base slide 10. The second pressing portions 32 are positioned on the B-direction side relative to the first pressing portions 31. Both the first pressing portions 31 and the second pressing portions 32 are types of pressing portions 30 that act on the pressure-bearing portion 22 of the braided member 2, causing the front end 2P of the braided member 2 to swing. The width of the second pressing portion 32 (its length along the reciprocating direction of the triangle base slide 10) is greater than the width of the first pressing portion 31. Figure 4 In the diagram, a double-dotted line represents the movement trajectory of the pressure-bearing part 22. This movement trajectory coincides with the meandering trajectory of the groove 40 of the fixed triangle 4. Figure 4In the current state, the first pressing part 31 is positioned on the movement trajectory of the pressing part 22 and acts on the pressing part 22. If the movable triangle 5 is displaced by the displacement mechanism 6 described later, the second pressing part 32 is positioned on the movement trajectory of the pressing part 22 and acts on the pressing part 22. Unlike this example, the second pressing part 32 may also be positioned on the F-direction side relative to the first pressing part 31.

[0125] The first pressing part 31 protrudes in the L direction, corresponding to the lower part of the flat knitting machine 1. The L direction is aligned with the thickness direction of the sub-triangle system 3. By pressing the pressure receiving part 22 in the L direction through the first pressing part 31, the front end 2P of the knitting member 2 descends toward the tooth 1G. Through this first pressing part 31, the knitting member 2 oscillates in a manner that presses down on the knitting yarn Y1 from above. This will be explained in detail in the knitting example 1 described later.

[0126] The first pressing part 31 has a mountain-shaped portion 310 parallel to one side of the plate-shaped main body 50 and inclined portions 311 and 312 sandwiching the mountain-shaped portion 310. Unlike this example, the mountain-shaped portion 310 may also be a curved surface. For example... Figure 4 As shown in (B), the outlines of the inclined portions 311 and 312, when viewed in the direction of B, are formed as a straight line from one side of the plate-shaped main body 50 toward the mountain portion 310. This outline can also be formed as a curve.

[0127] The second pressing part 32 differs from the first pressing part 31 only in width. That is, the second pressing part 32 protrudes in the L direction and has a ridge 320 and inclined portions 321 and 322. Unlike this example, the protrusion height of the ridge 320 may also differ from the protrusion height of the ridge 310 of the first pressing part 31. The width of the pressing part 30 is its length along the reciprocating direction of the triangular seat slide 10. The width of the second pressing part 32 is greater than the width of the first pressing part 31. Furthermore, the width of the ridge 320 of the second pressing part 32 is greater than the width of the ridge 310 of the first pressing part 31. That is, the second pressing part 32 begins to be pressed by the pressing part 22 earlier and ends pressing later than the first pressing part 31. Therefore, through the second pressing part 32, the knitting member 2 oscillates in a manner that enters below the knitting yarn Y1. This will be explained in detail in the knitting example 2 described later.

[0128] In this example, the second pressing part 32 is configured to be freely detachable from the plate-shaped main body 50. In this example, a plate with the second pressing part 32 is inserted into the detachment hole 52 formed in the plate-shaped main body 50. In this structure, the timing of the oscillation of the braided member 2 generated by the second pressing part 32 can be changed simply by changing the plate inserted into the detachment hole 52 to another plate with a different width than the second pressing part 32. Unlike this example, the second pressing part 32 may also be integrally formed with the plate-shaped main body 50.

[0129] The first pressing part 31 and the second pressing part 32 are independent of each other in the FB direction. The FB direction is the direction along the F and B directions. That is, a clear boundary line is formed between the first pressing part 31 and the second pressing part 32 arranged along the FB direction, and the first pressing part 31 and the second pressing part 32 switch in stages. Therefore, even if the movable triangle 5 slides slightly due to vibration, the switching of the pressing part 30 acting on the pressed part 22 can be suppressed. Therefore, the swinging motion of the braided member 2 generated by the first pressing part 31 and the second pressing part 32 is stable.

[0130] In this example, there are two pressing parts 30 with different widths, but there can also be three or more. For example, the first pressing part 31 and the second pressing part 32 can also have a third pressing part with a different width.

[0131] like Figure 2 As shown, the displacement mechanism 6 in this example is mounted on the bracket part 10B. The displacement mechanism 6 includes a solenoid 60, a rod 61, a switching triangle 62, and a spring 63. The displacement mechanism 6 is not limited to the structure in this example, as long as it can change the position of the movable triangle 5 relative to the fixed triangle 4.

[0132] The solenoid 60 is fixed to the U-direction side of the bracket portion 10B. For example... Figure 3 As shown, the plunger 60P of the solenoid 60 is opposite to the first arm 61B of the lever 61. The lever 61 is a generally Y-shaped member, having a rotating shaft 61A, a first arm 61B, and a second arm 61C. The lever 61 is configured to rotate about the rotating shaft 61A. The second arm 61C engages with a locking shaft 62C extending in the U direction from the switching triangle 62.

[0133] The switching triangle 62 is embedded in the recess 65 formed by the U-direction surface of the secondary triangle 10P (see reference). Figure 2 The switching triangle 62 can slide in the reciprocating direction of the triangular seat slide 10. The switching triangle 62 has two triangular grooves 62G. Each triangular groove 62G has a first step portion 621 parallel to the reciprocating direction of the triangular seat slide 10, a second step portion 622 further F than the first step portion 621, and an inclined portion 623 connecting the first step portion 621 and the second step portion 622. A pin 5P extending from the movable triangle 5 in the U direction is embedded in the triangular groove 62G.

[0134] Spring 63 connects the middle part of the second arm 61C to the bracket part 10B. The second arm 61C is stretched counterclockwise by spring 63. The second arm 61C causes the engaging shaft part 62C to... Figure 3 The movement is to the right. Furthermore, a pin 5P is configured at the first step 621 of the triangular slot 62G of the switching triangle 62. As a result, as... Figure 4As shown, the first pressing part 31 of the movable triangle 5 is arranged on the movement trajectory of the pressing part 22 of the braided member 2.

[0135] When the plunger 60P of the solenoid 60 advances toward the first arm 61B of the rod 61, as Figure 5 As shown, the first arm 61B is pressed by the plunger 60P, causing the rod 61 to rotate clockwise. Then, the switching triangle 62 is directed... Figure 5 The leftward movement of the pin 5P is configured in the second step 622 of the triangular groove 62G. The result is as follows: Figure 6 As shown, the second pressing part 32 of the movable triangle 5 is positioned on the movement trajectory of the pressing part 22 of the braided member 2. If the plunger 60P retracts from the first arm 61B, the movable triangle 5 returns. Figure 3 and Figure 4 The state.

[0136]

Knitting Example 1

[0137] based on Figures 7 to 10 This describes a weaving example using weaving component 2 in the padding yarn weaving. Figure 7 In the diagram, the braided triangle 90 of the main triangular system 9 and the secondary triangular system 3 are arranged vertically. Additionally, in... Figure 7 The image shows the triangular carriage 10 ( Figure 1 The position of the yarn feeder 11 is also shown. The double-dotted line indicating the position of the secondary cam system 3 represents the movement trajectory of the heel 21 and the pressure part 22 of the knitting member 2. The double-dotted line indicating the position of the knitting cam 90 represents the knitting needle 19. Figure 1 The movement trajectory of the heel plate (not shown) is present in this knitting example 1. Figure 7 In the left region, the woven component 2 is adsorbed by the part 15 ( Figure 1 Adsorption, thus avoiding the use of the left side of the secondary triangular system 3. The vertical lines with capital letters in the diagram indicate key points in the weaving process. Figures 8 to 10 Only the yarn feeder 11, the needle bed 1B including knitting needles 19, and the knitting component 2 are shown. The knitting yarn Y1 supplied from the yarn feeder 11 is a padding yarn. Figures 8 to 10 In the middle, the yarn feeder 11 is positioned on the side closer to the paper surface than the knitting needle 19, and the knitting yarn Y1 supplied from the yarn feeder 11 toward the tooth 1G extends toward the front side of the paper surface.

[0138] In the padding weaving, the movable triangle 5 is positioned in the first position. Figure 7 At timing A, the knitting needle 19 enters the toothed section 1G via the starting triangle 91. The knitting member 2 retracts from the toothed section 1G. The first pressing part 31 does not act on the knitting member 2. Figure 8As shown, the hook 19F of the knitting needle 19 is positioned higher than the knitting yarn Y1. The knitting component 2 is positioned furthest from the tooth 1G and does not act on the knitting yarn Y1 at all.

[0139] Figure 7 Timing B is the timing at which the oscillation of the knitting member 2 begins. At timing B, the knitting needle 19 is pulled down via the yarn bending cam 92. The knitting member 2 enters the toothed opening 1G, but does not oscillate downwards towards the toothed opening 1G. Figure 9 As shown, at time B, the knitting yarn Y1 passes under the front end 2P of the knitting member 2.

[0140] exist Figure 7 Timing C, via the yarn bending cam 92, further pulls down the knitting needle 19. The knitting component 2 swings downwards toward the toothed edge 1G. (As shown) Figure 10 As shown, the front end 2P of the knitting member 2 contacts the knitting yarn Y1 from above, pulling the knitting yarn Y1 downwards. As a result, the knitting yarn Y1 hooks onto hook 19F and is woven into the fabric.

[0141] The knitting of the above-described knitting example 1 can also be used during normal knitting after float knitting, in order to reliably hook the knitting yarn Y1 onto hook 19F.

[0142] Unlike this example, without weaving the padding yarn into the knitted fabric, the method utilizes the prior... Figure 7 The yarn feeder 11 shown is not illustrated, and the first pressing part 31 on the left side of the movable triangle 5 is also shown. In this case, it is possible to... Figure 7 Before starting the knitting of the 90 loop of the knitting triangle, the knitting yarn Y1 is pulled down to a position lower than hook 19F. As a result, the knitting yarn Y1, which serves as a backing yarn, is not woven into the fabric but is positioned on the reverse side of the fabric.

[0143]

Knitting Example 2

[0144] based on Figures 11 to 14 This describes a knitting example using knitting component 2 when switching from normal yarn-adding knitting to reverse yarn-adding knitting. Figure 11 Observation methods and Figure 7 same. Figures 12 to 14 Only yarn feeders 11 and 12, the needle bed 1B including knitting needles 19, and the knitting component 2 are shown. The knitting yarn Y1 supplied from yarn feeder 11 is the main yarn. The knitting yarn Y2 supplied from yarn feeder 12 is the feed yarn. Yarn feeder 11 is positioned on the paper depth side compared to yarn feeder 12. That is, yarn feeder 11 moves first in the knitting direction, and yarn feeder 12 moves later.

[0145] In this knitting example, the movable triangle 5 is positioned in the second position. Figure 11At time D, the knitting needle 19 enters the toothed section 1G via the starting triangle 91. The knitting member 2 retracts from the toothed section 1G. The first pressing part 31 does not act on the knitting member 2. Figure 12 As shown, the hook 19F of the knitting needle 19 is positioned higher than the knitting yarns Y1 and Y2. The knitting member 2 is positioned furthest from the tooth 1G and does not affect the knitting yarns Y1 and Y2 at all. The knitting yarn Y1, which is the main yarn, is positioned lower than the knitting yarn Y2, which is the supplementary yarn.

[0146] Figure 11 Timing E is the timing at which the oscillation of the knitting member 2 begins. At this timing E, the pull-down of the needle 19, located above the starting cam 91 and based on the presser cam 94, ends. The knitting member 2 enters the toothed area 1G, but does not oscillate downwards towards the toothed area 1G. Figure 13 As shown, at time E, the front end 2P of the braided component 2 crosses the lower part of the hook 19F.

[0147] exist Figure 11 The timing F, via the yarn bending cam 92, further pulls down the knitting needle 19. The knitting member 2, at a timing earlier than in knitting example 1, swings downwards toward the toothed edge 1G, operating to enter beneath the knitting yarns Y1 and Y2. Therefore, as... Figure 14 As shown, the front end 2P of the knitting component 2 is positioned below the knitting yarns Y1 and Y2. If knitting continues from this position, the knitting needle 19 retracts from the toothed edge 1G and is pulled downwards by the hook 19F while the knitting yarns Y1 and Y2 are resting on the upper part of the front end 2P. At this time, the knitting yarns Y1 and Y2 are swapped, thus switching from normal yarn-adding knitting to reverse yarn-adding knitting.

[0148] As described above, according to the embodiment of the flat knitting machine 1, the use of the knitting member 2 can be changed without replacing the secondary triangle system 3 by means of the movable triangle 5 having multiple pressing parts 30.

[0149] The flat knitting machine 1 of the embodiment also exhibits excellent knitting efficiency. Unlike the embodiment, for example, in a flat knitting machine equipped with multiple main cam systems, if a secondary cam system with a first pressing part is configured relative to the first main cam system, and a secondary cam system with a second pressing part is configured relative to the second main cam system, the purpose of the knitting member can be changed without replacing the secondary cam system. However, in this structure, in order to change the purpose of the knitting member, it is sometimes necessary to make extra travel of the cam carriage. For example, when the cam carriage travels in a manner where the first main cam system moves first and knitting using the second pressing part is performed, the cam carriage must make extra travel in a manner that allows knitting by the second main cam system. In the flat knitting machine 1 of the embodiment, such extra travel is not required. The flat knitting machine 1 of the embodiment can knit fabrics efficiently, corresponding to the absence of extra travel of the cam carriage 10.

[0150] <Variation Example>

[0151] based on Figure 15 , Figure 16 This section describes a variation of the above-mentioned flat knitting machine 1. Figure 15 , Figure 16 The size and shape of the components shown are for illustrative purposes only and do not necessarily represent the actual dimensions and shapes.

[0152] Figure 15 The movable triangle 5 has a first pressing part 31 and a second pressing part 32 that are continuous in the FB direction without a boundary line. In this structure, the lower part of a pressing part 30 functions as the first pressing part 31, and the upper part functions as the second pressing part 32. In this structure, the movable triangle 5 slides along the FB direction, thereby switching between the first pressing part 31 and the second pressing part 32.

[0153] Next, based on Figure 16 An example of a structure in which the first pressing part 31 is formed on the fixed triangle 4 will be described. Figure 16 The first pressing portion 31 of the fixed triangle 4 shown in (A) has two inclined portions 311, 312 and a mountain portion 310, similar to that in Embodiment 1. On the other hand, a second pressing portion 32 is formed on the movable triangle 5. This second pressing portion 32 also has two inclined portions 321, 322 and a mountain portion 320. The second pressing portion 32 is formed in a bridge shape, and a gap for receiving the first pressing portion 31 is formed on the reverse side (the depth side of the paper surface) of the second pressing portion 32. In this structure, when the movable triangle 5 slides in the direction of the thick arrow, i.e., direction B, the first pressing portion 31 is inserted into the gap on the depth side of the second pressing portion 32. The second pressing portion 32 overlaps with the first pressing portion 31, thereby switching from the first pressing portion 31 to the second pressing portion 32.

[0154] Figure 16 The first pressing part 31 shown in (B) has a... Figure 16The structure is the same as the first pressing part 31 shown in (A). On the other hand, two segmented pieces 32L and 32R, which constitute part of the second pressing part 32, are formed in the movable triangle 5. The segmented piece 32L, which is arranged on the left side of the figure, is composed of a part of the left side of the mountain 320 and an inclined part 321. A gap with a shape corresponding to the inclined part 311 of the first pressing part 31 is formed in the area to the right of the dashed line on the reverse side of the segmented piece 32L. The segmented piece 32R, which is arranged on the right side of the figure, is composed of a part of the right side of the mountain 320 and an inclined part 322. A gap with a shape corresponding to the inclined part 312 of the first pressing part 31 is formed in the area to the left of the dashed line on the reverse side of the segmented piece 32R. In this structure, when the movable triangle 5 slides in the direction of the thick arrow, i.e., in the direction B, the inclined part 311 and the inclined part 312 are respectively inserted into the gaps on the depth side of the segmented piece 32L and the gaps on the depth side of the segmented piece 32R. As a result, the first pressing part 31 is switched to the second pressing part 32. In this structure, the portion constituting the mountain part 320 in the segmented piece 32L, the mountain part 310 in the first pressing part 31, and the portion constituting the mountain part 320 in the segmented piece 32R are connected in a series and function as a mountain part 320.

Claims

1. A flat knitting machine (1), comprising: The needle bed (1F, 1B) supports the knitting needles (19) so that they can move freely forward and backward; The yarn guide (11) supplies knitting yarn (Y1) to the needle bed (1F, 1B). The triangular carriage (10) has a main triangular system (9) that enables the knitting needles (19) to perform knitting actions; Knitting component (2), assisting in the knitting of the fabric on the needle bed (1F, 1B); and The secondary triangular system (3) is mounted in the triangular seat carriage (10) at a position higher than the primary triangular system (9). The secondary triangular system (3) causes the knitting member (2) to move forward and backward toward the toothed edge (1G), and causes the knitting member (2) to swing in a direction that intersects the forward and backward direction of the knitting member (2) in a plane that includes the forward and backward direction of the knitting member (2) and the direction perpendicular to the plane on which the flat knitting machine (1) is set. in, The sub-triangle system (3) has the following features: The fixed triangle (4) is configured to remain stationary relative to the triangle seat slide (10); The movable triangle (5) is configured to slide freely toward the toothed opening (1G); The displacement mechanism (6) changes the position of the movable triangle (5) relative to the fixed triangle (4); as well as Multiple pressing parts (30) press the knitting member (2) in a direction that intersects the knitting member (2)'s forward and backward direction in a plane that includes the forward and backward direction of the knitting member (2) and a direction perpendicular to the plane on which the flat knitting machine (1) is set. The plurality of pressing parts (30) each press the braided component (2) with different widths. At least one of the plurality of pressing parts (30) is formed on the movable triangle (5). The woven component (2) comprises: Plate heel (21), the fixed triangle (4) acting on the plate heel (21); and The pressure receiving part (22) is subjected to any one of the plurality of pressing parts (30). The pressing part (30) acting on the pressing part (22) is switched by the displacement of the movable triangle (5).

2. The flat knitting machine (1) according to claim 1, wherein, The plurality of pressing parts (30) include a first pressing part (31) and a second pressing part (32), wherein the width of the second pressing part (32) is greater than that of the first pressing part (31). The knitting member (2), which oscillates through the first pressing part (31), contacts the knitting yarn (Y1) from a position above it. The braiding member (2), which is oscillating through the second pressing part (32), contacts the knitting yarn (Y1) from a position lower than the knitting yarn (Y1).

3. The flat knitting machine (1) according to claim 2, wherein, The first pressing part (31) and the second pressing part (32) are formed on the movable triangle (5).

4. The flat knitting machine (1) according to claim 1 or 2, wherein, The at least one pressing part is configured to be freely detachable.

5. The flat knitting machine (1) according to claim 1 or 2, wherein, The pressure-bearing part (22) is located in the braided member (2) closer to the tooth (1G) than the heel (21).

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