JP2013064207A - Needle selection system of flat knitting machine, selector, and flat knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a needle selection system of a flat knitting machine capable of more stably performing needle selection than a conventional needle selection system.SOLUTION: A needle selection system 1 includes a selector 4 constituting a part of a knitting needle 200 and a needle selection device 2 provided in a carriage 300 reciprocating in the longitudinal direction of a needle bed 100. The selector 4 includes an armature 43 and an elastic leg piece 44 extending toward a tail end side opposite to a needle bed gap side. The needle selection device 2 includes a needle selection actuator 10 and an interposition cam 20. The interposition cam 20 is provided so as to protrude to a position facing the needle selection actuator 10. The interposition cam 20 interposes between the armature 43 and the elastic leg piece 44 of the selector 4 to spread the space between the armature 43 and the elastic leg piece 44 when the carriage 300 travels on the needle bed 100. As a result, the selector 4 is supported by the carriage 300 in which the interposition cam 20 is provided.

Description

  The present invention relates to a needle selection system for a flat knitting machine that is less likely to cause a needle selection error than the conventional configuration, a flat knitting machine using the needle selection system, and a selector that constitutes a part of the needle selection system.

  The flat knitting machine has at least a pair of front and back needle beds, a knitting needle disposed in each of a large number of needle grooves arranged in parallel with each needle bed, and a longitudinal direction of the needle bed (a direction orthogonal to the extending direction of the needle grooves). And a carriage that reciprocates along. A knitting cam is mounted on the carriage, and this knitting cam causes the knitting needles to perform knitting operations (knit, tack, miss, and delivery of stitches between the front and back needle beds). What kind of knitting operation is to be performed by each knitting needle is determined by selecting the knitting needle by the needle selection system. As such a needle selection system, one adopting an electromagnetic needle selection system is known (see, for example, Patent Document 1).

  FIG. 7 is an explanatory diagram for explaining a conventional electromagnetic needle selection type needle selection system, and shows the vicinity of the selector in the cross section of the needle bed. In FIG. 7, the carriage 300 reciprocates in the depth direction of the paper. When the carriage 300 reciprocates, the knitting needle 201 arranged in the needle groove 101 of the needle bed 100 is selected, and the knitting needle 201 moves in the extending direction of the needle groove 101 (left and right direction on the paper surface) based on the needle selection result. And organize. The needle selection system in FIG. 7 includes a selector 9 provided in each knitting needle 201 and a needle selection device 2T provided in the carriage 300.

  The knitting needle 201 includes a needle body (not shown) having a hook, a needle jack 7 for moving the needle body back and forth in the extending direction of the needle groove 101, a select jack 8 for controlling whether or not the needle jack 7 is advanced and retracted, and a needle And a selector 9 that changes the position of the select jack 8 in the extending direction of the groove 101. Depending on the position of the select jack 8, the operating state of the knitting cam 30 with respect to the knitting bat 71 provided in the needle jack 7 and the driving bat (not shown) provided in the slider changes, and the knitting operation of the knitting needle 201 also changes.

  The select jack 8 can take the following three positions (B, H, A) in the extending direction of the needle groove 101 (there may be two depending on the flat knitting machine). For example, the B position corresponds to a miss organization. The H position is a position closer to the tooth opening side (right side of the drawing) than the B position, and corresponds to tack knitting or transfer. The A position is a position closer to the mouth than the H position, and corresponds to knit knitting or transfer. These positions are maintained by a bifurcated position holding portion 82 on the tail end side (the side opposite to the mouth side) of the select jack 8. Three recesses are formed in the position holding portion 82, and the select jack 8 is positioned by engaging the wire 8w extending in the longitudinal direction (the depth direction of the paper surface) of the needle bed 100 with each recess.

  The selector 9 that changes the position of the select jack 8 includes a base 91, a tip 92 provided on the mouth side of the base 91, an armature 93 provided on the tail end of the base 91, and the tail end side from the base 91. And an elastic leg piece 94 extending in the direction. Further, a raising butt 95 is provided on the upper end side of the armature 93 (upper side of the paper surface and on the surface side of the needle bed 101), and a lowering bat 96 is provided on the upper end side of the base 91. The selector 9 moves to the tooth opening side when a needle selection cam 39 (described later) acts on the lifting bat 95, and pushes the butt 81 of the select jack 8 toward the tooth opening side at its tip 92 to select the select jack 8. Is moved from B position to H position or A position. Thereafter, the selector 9 is quickly returned to the B position to prepare for the next needle selection. The selector 9 is normally in the B position, and the raising butt 95 of the selector 9 is in a state of protruding from the needle groove 101.

  On the other hand, the needle selection device 2T includes a needle selection cam 39 that faces the bats 95 and 96 of the selector 9 and a needle selection actuator 10 that faces the lower end surface (suction end surface 93s) of the armature 93 of the selector 9. Prepare. The needle selection actuator 10 is provided with an attracting surface 10s from which the permanent magnet is exposed, and the armature 93 (the attracted end surface 93s) of the selector 9 can be attracted to the attracting surface 10s. Here, two separation areas are set in the suction surface 10s in the width direction (the depth direction on the paper). In the separation area, permanent action is generated by the action of electromagnetic force generated by energizing the needle selection actuator 10. The magnetic force by the magnet is weakened.

  When knitting with a flat knitting machine having the above configuration, when the carriage travels on the needle bed 100 and the needle selection actuator 10 approaches the selector 9, the suction surface 10 s of the needle selection actuator 10 causes the armature 93 of the selector 9 to move. Adsorbing (the state before being adsorbed is shown in FIG. 7), the raising bat 95 is submerged in the needle groove 101. This state is a so-called non-needle selection state. If the needle selection actuator 10 is not energized, the needle selection cam 39 cannot act on the raising butt 95, and the selector 9 is maintained at the B position without moving to the mouth side.

  On the other hand, when the carriage travels with the armature 93 of the selector 9 being attracted and the armature 93 reaches the separation area of the attracting surface 93s, the energization of the needle selection actuator 10 is performed. The pole 93 is separated from the adsorption surface 10s. Then, the raising butt 95 is lifted from the needle groove 101 by the elastic force of the elastic leg piece 94 that contacts the upper end surface of the position holding portion 82 of the select jack 8, and the needle selection cam 39 can act on the raising butt 95. The needle is selected. When the needle selection cam 39 acts on the lifting butt 95 of the selector 9, the selector 9 moves to the tooth opening side, and the tip end portion 92 of the selector 9 pushes the lifting butt 81 of the select jack 8 to the tooth opening side, The position of select jack 8 is also changed. Note that the position of the selector 9 (select jack 8) changes depending on which of the two disengagement areas the armature 93 is disengaged from the attracting surface 10s.

Japanese Patent No. 3449514

  In recent years, further improvement in knitting efficiency in flat knitting machines has been desired, and it has been considered to review existing needle selection systems.

  In the needle selection device of FIG. 7, when the knitting speed is increased, the armature 93 is attracted to and detached from the attracting surface 10 s due to minute fluctuations in the distance between the carriage 300 and the needle bed 100 as the carriage 300 travels. There is a risk of needle selection mistakes. This is because the selector 9 is supported by both the needle bed 100 and the carriage 300 when the armature 93 of the selector 9 is attracted to the attracting surface 10s. Here, the spring fulcrum 94b that generates the elastic force of the elastic leg piece 94 is located on the upper surface of the position holding portion 82 of the select jack 8 with which the elastic leg piece 94 of the selector 9 abuts. Along with this, the elastic force of the elastic leg piece 94 acting in the direction of floating the armature 93 from the needle groove 101 fluctuates little by little, and the above-mentioned adsorption and separation become unstable.

  In the illustrated configuration, the position of the spring fulcrum 94b and the position of the attracted end surface 93s of the armature 93 are displaced in the longitudinal direction of the needle groove 101, so that a large moment tends to occur around the spring fulcrum 94b. This is also a factor that the adsorption and detachment of the armature 93 with respect to the adsorption surface 10s are not stable.

  In addition, when the flat knitting machine is made into a fine gauge, the width of the armature 93 of the selector 9 is reduced, and the area of the attracted end face 93s is reduced. Also in that case, the adsorption and detachment of the armature 93 with respect to the adsorption surface 10s become unstable.

  The present invention has been made in view of the above circumstances, and one of the purposes thereof is used in a needle selection system of a flat knitting machine that can perform needle selection more stably than in the past, and the needle selection system thereof. It is to provide a selector that can be used. Another object of the present invention is to provide a flat knitting machine to which the needle selection system of the flat knitting machine is applied.

  The needle selection system of the flat knitting machine of the present invention includes a selector that constitutes a part of a knitting needle disposed in each of a plurality of needle grooves arranged in parallel in the longitudinal direction of the needle bed of the flat knitting machine, and the longitudinal direction of the needle bed And a needle selection device that changes the knitting operation to be performed by the knitting needle by changing the position of the selector along the extending direction of the needle groove. The needle selection device is configured to allow the selector in the depth direction of the needle groove depending on whether the part of the selector is kept attracted to or separated from the attracting surface that attracts a part of the selector by magnetic force. It has a needle selection actuator that selects the knitting needle by changing the position. The selector of the needle selection system according to the present invention includes a base, a tip portion provided on the side of the needle bed of the needle bed, and a tail end side of the base opposite to the side of the mouth. And an armature disposed opposite to the suction surface of the needle selection actuator and an elastic leg piece connected to the tip and extending toward the tail end. In addition to the needle selection actuator, the needle selection device of the needle selection system of the present invention is provided so as to protrude to a position facing the needle selection actuator, and when the carriage travels on the needle bed, An interrupting cam is provided which is inserted between the pole and the elastic leg piece so as to widen the gap between the pole and the elastic leg piece and attracts the armature to the attracting surface of the needle selection actuator. In the needle selection system of the flat knitting machine of the present invention having the above-described configuration, the elastic leg piece of the selector contacts the interrupt cam while the interrupt cam passes through the selector, and the selector causes the interrupt to be interrupted. Supported by a cam.

  As one form of the needle selection system of the flat knitting machine of the present invention, the contact portion provided on the elastic leg piece of the selector is preferably disposed within the formation range of the armature in the extending direction of the needle groove. . Here, the contact portion is a portion of the elastic leg piece of the selector that is in contact with the interrupt cam, and a spring fulcrum that generates a resilient force that biases the armature in a direction approaching the elastic leg piece. It is the part that becomes.

  As one form of the needle selection system of the flat knitting machine of the present invention, the needle selection actuator is preferably provided on the carriage so as to face the armature of the selector from the upper surface side of the needle bed.

  As one form of the needle selection system of the flat knitting machine of the present invention, a raising bat is formed on the side opposite to the attracted end face attracted by the needle selection actuator among the armatures of the selector, and the interrupt Preferably, the cam is formed with a guide that acts on the lifting bat to advance the selector toward the mouth side.

  On the other hand, the selector of the present invention is a member constituting a part of the knitting needles arranged in each of the needle grooves arranged in parallel in the longitudinal direction of the needle bed of the flat knitting machine, and depends on the position along the extending direction of the needle grooves. A member for determining a knitting operation performed by the knitting needle. The selector of the present invention includes a base, a tip provided on one end in the longitudinal direction of the base, an armature provided on the other end in the longitudinal direction of the base, and the tip connected to the other end. Elastic leg pieces extending toward the front. The elastic leg piece of the selector contacts the member when the member fixed to the carriage of the flat knitting machine is interposed between the armature and the elastic leg piece, and the armature is attached to the elastic leg piece. It has an abutting portion that serves as a spring fulcrum for generating a resilient force that biases in a direction approaching the piece.

  The flat knitting machine of the present invention is a flat knitting machine that includes at least a pair of front and back needle beds and performs knitting with knitting needles provided in each of a plurality of needle grooves arranged in parallel to the needle beds. It is provided with a needle system.

  According to the needle knitting system and the flat knitting machine of the present invention, it is possible to stabilize the adsorption and detachment of the selector armature with respect to the adsorption surface of the needle selection actuator as compared with the conventional configuration. This is because the influence of the minute fluctuation between the carriage and the needle bed can be reduced because the selector is supported on the carriage side by the interrupt cam provided on the carriage.

  In the needle knitting system and the flat knitting machine of the present invention, the spring fulcrum (contact portion) of the elastic leg piece is disposed within the range of the armature in the longitudinal direction of the selector, thereby attracting the needle selection actuator. Adsorption and separation of the armature by the surface can be made more stable. This is because there is a spring fulcrum directly below the armature, so that a moment around the spring fulcrum hardly acts on the armature.

  In the needle selection system and flat knitting machine of the present invention, the needle selection system can be made compact by adopting a configuration in which the needle selection actuator faces the armature from the upper side of the needle bed. This is because the carriage on which the needle selection actuator is mounted is disposed on the upper surface side of the needle bed.

  In the flat knitting machine and flat knitting machine of the present invention, by providing the interrupt cam with a guide for guiding the bat for raising the selector, the interrupt cam can also function as a needle selection cam for changing the selector position. Can do.

  Further, according to the selector of the present invention, a needle selection system for the flat knitting machine of the present invention can be constructed.

It is a schematic explanatory drawing which shows the correspondence of the knitting needle, the knitting cam, and the needle selection device in the flat knitting machine described in the embodiment. It is the schematic of the selector with which the knitting needle of the flat knitting machine described in embodiment is equipped. (A) is a front view of the needle selection device, (B) is a left side view of the needle selection device, (C) is a bottom view of the needle selection actuator, and (D) is a top view of the interrupt cam. It is the schematic which shows the positional relationship of the knitting needle arrange | positioned at a needle bed, and a needle selection system. FIGS. 5A and 5B are partially enlarged views in the vicinity of the selector in FIG. 4, in which FIG. 4A is a diagram illustrating a state where the armature of the selector is attracted to the attracting surface of the needle selection actuator, and FIG. It is a figure which shows the state isolate | separated. FIG. 5 is a partially enlarged view of the vicinity of the selector in FIG. 4, showing a state in which the selector has advanced to the A position. It is explanatory drawing explaining the needle selection system of the conventional electromagnetic needle selection system.

  Hereinafter, a flat knitting machine to which the needle selection system of the flat knitting machine of the present invention is applied will be described with reference to the drawings.

<Overall configuration>
The flat knitting machine of the present embodiment includes at least a pair of front and rear needle beds, a plurality of knitting needles arranged in parallel to each needle bed, and a carriage that reciprocates on the needle beds, and a knitting cam mounted on the carriage. A machine for knitting a knitted fabric by operating each knitting needle. A feature of the flat knitting machine described in this embodiment is a needle selection system for changing the knitting operation of the knitting needles. As will be described later, this needle selection system includes a needle selection device including a needle selection actuator and an interruption cam, and a selector that constitutes a part of the knitting needle, both of which have a configuration different from the conventional one. Hereinafter, first, the knitting operation of the flat knitting machine of this embodiment will be briefly described with reference to FIG. 1, and then the needle selection system for making the knitting operation performed by the knitting needles different with reference to FIGS. Details about.

  A knitting needle 200 of the present embodiment shown in FIG. 1 is a composite needle including a needle body 5, a slider 6, a needle jack 7, a select jack 8, and a selector 4. The needle body 5 has a hook for locking the knitting yarn. The slider 6 opens and closes the hook of the needle body 5. The needle jack 7 advances and retracts the needle body 5 in the extending direction of the needle groove (up and down direction on the paper surface). The select jack 8 controls whether or not the needle jack 7 is advanced or retracted depending on its own position in the extending direction of the needle groove. The selector 4 changes the position of the select jack 8 in the needle groove extending direction (the selector 4 constituting the needle selection system 1 will be described later). The members 6, 7, 8, and 4 are provided with one or a plurality of bats. When the knitting cam 30 described below and the needle selection device 2 described later act on these bats, the members 6, 7, 8, and 4 advance and retract in the extending direction of the needle groove. The knitting needle used in the flat knitting machine of the present embodiment may be a latch needle.

  On the other hand, a knitting cam 30 having a plurality of cams 31 to 36 is attached to the carriage 300 of the flat knitting machine, and the knitting operation is performed by the knitting cam 30 acting on each bat of the knitting needle 200. Of course, a plurality of knitting cams 30 may be mounted on the carriage 300. Here, in FIG. 1, the slider guide cam which acts on the drive bat 61 of the slider 6 is omitted, and the direction of the knitting needle 200 is shown in a state different from the actual direction.

  Next, the knitting operation of the knitting needle 200 will be described based on the trajectories of the bats 71, 83, 45, 46 provided on the knitting needle 200 indicated by broken lines in FIG. Here, the trajectories of the bats 71, 83, 45, and 46 are divided into three, and are trajectories at the B position, the H position, and the A position, respectively, in order from the lower side of the drawing.

  First, when the carriage 300 travels, if the selector 4 is maintained at the B position in the needle selection device 2 described later, the pressing butt 83 of the select jack 8 is depressed into the needle groove by the fixed presser 33. Accordingly, the knitting bat 71 of the needle jack 7 is also submerged in the needle groove. In this case, the knitting butt 71 is not affected by the needle raising cam 31 and does not move to the tooth opening side (upward in the drawing) of the needle groove extending direction. As a result, the knitting operation becomes a miss knitting.

  Second, when the selector 4 is moved to the H position by the needle selection device 2 described later, the select jack 8 is also in the H position. In that case, the knitting butt 71 moves to the mouth side under the action of the needle raising cam 31. Here, the movable presser 34 is disposed at a position overlapping the locus of the pressing bat 83 in the H position. Therefore, the pressing butt 83 is sunk into the needle groove by the movable presser 34, and the knitting butt 71 is also sunk into the needle groove accordingly. The knitting butt 71 is an intermediate portion of the needle raising cam 31 on the lower side of the drawing. It passes through the protrusion without being affected by the protrusion on the surface. Thereafter, the knitting bat 71 is pulled down to the side opposite to the tooth opening by the mountain cam 32 on the left side of the drawing. As a result, the knitting operation is tack knitting. The pressing butt 83 in the H position is lowered to the B position by the select jack lowering cam 36 on the left side of the paper, and the lowering butt 46 in the H position is lowered to the B position by the selector lowering cam 35 on the right side of the paper. .

  Third, when the selector 4 is moved to the A position by the needle selection device 2 described later, the pressing butt 83 is also in the A position. In that case, the knitting butt 71 is pushed up to the mouth side under the action of the needle raising cam 31 and then pulled down to the side opposite to the tooth mouth under the action of the degree cam 32. As a result, the knitting operation is knit knitting. Note that the pressing bat 83 and the lowering bat 46 in the A position are pulled down to the B position by the cams 36 and 35, respectively.

<Needle selection system>
As described above, the position of the selector 4 of the knitting needle 200 defines the knitting operation of the knitting needle 200. The selector 4 and the needle selection device 2 that changes the position of the selector 4 constitute the needle selection system 1 of the present embodiment.

≪Selector≫
As shown in FIGS. 2 and 4, the selector 4 is a plate-like member having a generally hairpin shape, and includes a base body 41, a distal end portion 42, an armature 43, elastic leg pieces 44, a lifting butt 45, and a lowering butt 46. Is provided.

  The base body 41 is a bar-shaped portion that extends along the longitudinal direction of the needle groove 101 when the selector 4 is disposed in the needle groove 101.

  The distal end portion 42 is a generally L-shaped portion that is disposed on the tooth mouth side of the needle bed 100 when the selector 4 is disposed in the needle groove 101, and the lifting butt 81 of the select jack 8 is connected to the tail end. It is a part for extruding from the side to the mouth side. A lowering butt 46 that protrudes upward from the needle bed 101 is formed at the distal end portion 42. The lowering butt 46 always protrudes from the needle groove 101 regardless of the position of the selector 4, and is the portion on which the selector lowering cam 35 acts as already described with reference to FIG.

  The armature 43 is a plate-like portion that is disposed on the opposite side (tail end side) from the tooth opening when the selector 4 is disposed in the needle groove 101. The upper end surface of the armature 43 is an attracted end surface 43s that is attracted to an attracting surface 10s of the needle selection actuator 10 described later. Further, the lifting bat 45 is provided so as to protrude from the lower end surface of the armature 43 toward the bottom of the needle groove 101 (below the needle bed 100). The raising bat 45 is a part that receives the action of the interrupt cam 20 described later.

  One end of the elastic leg piece 44 is connected to the tip end portion 42, and the other end is a free end rod-like portion. The elastic leg piece 44 is arranged in parallel with the base body 41 with a space between the elastic leg piece 44 and the base body 41. The other end of the elastic leg piece 44 extends to a position facing the armature 43 in the longitudinal direction of the selector 4 (that is, the extending direction of the needle groove 101). Of the other end of the elastic leg piece 44, the side facing the armature 43 abuts on an interrupt cam 20 described later, and generates a resilient force that urges the armature 43 toward the bottom of the needle groove 101. A contact portion 44b serving as a spring fulcrum is provided. Further, an engaging portion 44 h bent in a semicircular arc shape is formed at the intermediate portion of the elastic leg piece 44. As shown in FIG. 4, the engaging portion 44 h engages with the wires 4 w and 5 w extending in the longitudinal direction of the needle bed 100 when the selector 4 is disposed in the needle groove 101, and Determine the position.

≪Needle selection device≫
As shown in FIGS. 3A and 3B, the needle selection device 2 includes a needle selection actuator 10 and an interrupt cam 20. Among these, the needle selection actuator 10 has the same basic configuration as the conventional one except that the needle selection actuator 10 has an engaging portion to which the interrupt cam 20 can be attached. Specifically, the needle selection actuator 10 includes a suction surface 10s that is a surface from which the plurality of permanent magnets 11 are exposed and that attracts the armature 43 of the selector 4 (see particularly FIG. 3C). On the attracting surface 10s, separation regions 12a and 12b are provided between the permanent magnets 11 and 11 arranged in the width direction of the needle selection actuator 10 (same as the carriage traveling direction). When the electromagnetic coil built in the needle selection actuator 10 is energized, the magnetic force in the separation regions 12a and 12b is weakened.

  As shown in FIG. 4, the needle selection actuator 10 is arranged on the carriage 300 so that the suction surface 10 s faces the upper surface of the needle bed 100. Therefore, when the carriage 300 is moved in the depth direction of the paper and the needle selection actuator 10 approaches the selector 4, the attracting surface 10 s faces the attracted end surface 43 s that is the upper end surface of the armature 43 (FIG. 2) of the selector 4. In addition, the needle selection device 2 in FIG.

  On the other hand, as shown in FIGS. 3A, 3B, and 3D, the interrupt cam 20 constituting the needle selection device 2 is attached to the needle selection actuator 10 and is at a position facing the needle selection actuator 10. It is a member that approaches. The role of the interrupt cam 20 is inserted between the armature 43 of the selector 4 and the elastic leg piece 44 to widen the distance between the two armatures 43 and 44 so that the armature 43 is attracted to the attracting surface 10 s of the needle selection actuator 10. (Refer to FIG. 5 described later and the description thereof). Further, the interrupt cam 20 also has a role of supporting the contact portion 44b of the elastic leg piece 44 provided in the selector 4 so that the selector 4 is not supported by the needle bed 100 (see FIG. 5 described later and the description thereof). reference). Further, the interrupt cam 20 of the present embodiment also has a role of a needle selection cam 39 having a conventional configuration shown in FIG.

  An inclined surface 21, an upper step surface 22, a middle step surface 23, and a lower step surface 24 are formed on the interrupt cam 20 on the side facing the suction surface 10 s of the needle selection actuator 10. The inclined surface 21 of the interrupt cam 20 rises from the widthwise end of the interrupt cam 20 toward the intermediate portion and communicates with the upper surface 22. The upper surface 22 is a flat surface having an approximately M shape. The middle stage surface 23 is a substantially M-shaped flat surface that bends toward the tail end side (upper side in the drawing in FIG. 3D) from the widthwise end portion of the interrupt cam 20 toward the intermediate portion. The lower step surface 24 is a substantially mountain-shaped flat surface. A wall portion 20b is formed between the middle step surface 23 and the lower step surface 24 in addition to the step formed by the difference in height between the two steps 23 and 24. The wall portion 20b is formed only before the intermediate portion in the width direction of the interrupt cam 20, and therefore, a route is formed from the middle step surface 23 to the lower step surface 24. The height of the wall portion 20b is substantially equal to the height of the upper step surface 22 (see FIGS. 3A and 3B).

  As described above, a plurality of surfaces 21 to 24 having different heights are formed on the upper surface of the interrupt cam 20. Steps between these surfaces 21 to 24 form three guide routes B, H, and A (indicated by a two-dot chain line in FIG. 3 (D) and a square box alphabet) for guiding the raising bat 45 of the selector 4. Is done. Each guide route B, H, A corresponds to the B, H, A position of the selector 4, respectively. That is, the interrupt cam 20 of the present embodiment also serves as a needle selection cam that pushes the raising butt 45 of the selector 4 toward the tooth opening side.

  How the needle selection of the knitting needle 200 is performed by the needle selection system 1 having the above-described configuration will be specifically described.

  First, when the carriage 300 is moved from the state of FIG. 4 and the needle selection device 2 approaches the knitting needle 200, the end in the width direction of the interrupt cam 20 of the needle selection device 2 is connected to the armature 43 of the selector 4 (FIG. 2). And the elastic leg piece 44. When the carriage 300 further advances, as shown in FIG. 5A, the inclined surface 21 of the interrupt cam 20 is moved to the raising butt 45 at the lower end of the armature 43, and the lower end surface 29 of the interrupt cam 20 (FIG. 3B )) Comes into contact with the contact portion 44b on the upper end surface of the elastic leg piece 44, and the space between the armature 43 and the elastic leg piece 44 is expanded. Then, the raising bat 45 reaches the upper stage surface 22 of the interrupt cam 20, and the armature 43 is adsorbed by the adsorption surface 10 s of the needle selection actuator 10. At this time, the elastic leg piece 44 of the selector 4 contacts the interrupt cam 20 at the position of the contact portion 44b, and the selector 4 is supported by the carriage 300. Therefore, as the carriage 300 travels, the needle bed 100 and the carriage 300 Even if the interval fluctuates minutely, the adsorption of the selector 4 by the adsorption surface 10s is hardly affected by the fluctuation. At this time, it is preferable that the selector 4 is completely separated from the wires 4w and 5w so that the selector 4 does not depend on the needle bed 100. The raising bat 45 and the upper surface 22 are slightly separated from each other.

  Here, even when the selector 4 is not supported by the needle bed 100, the moment acts on the attracted end face 43s of the armature 43 due to the vibration of the carriage 300 as the carriage 300 travels, and the armature 43 of the selector 4 is attracted. There is also a risk of leaving the surface 10s. On the other hand, in the present embodiment, of the elastic leg piece 44, the contact portion 44b that contacts the interrupt cam 20 serves as a spring fulcrum for urging the armature 43 toward the needle groove 101. Since the spring fulcrum (contact portion 44b) is in a position overlapping the formation range of the attracted end face 43s of the armature 43 in the extending direction of the needle groove 101, a moment around the spring fulcrum 44b is unlikely to occur. Therefore, in order to detach the armature 43 from the attracting surface 10s without using the electromagnetic force of the needle selection actuator 10, it is necessary to apply a considerable force, and the contact with the vibration of the carriage 300 as the carriage 300 travels. The pole element 43 hardly leaves the adsorption surface 10s.

  As described above, when the armature 43 is attracted to the attracting surface 10s and is not detached, the lifting butt 45 is lifted from the upper stage surface 22 of the interrupt cam 20, and the guide route B shown in FIG. Are not affected by the interrupt cam 20. As a result, the selector 4 maintains the B position without being moved in the extending direction of the needle groove 101. In that case, the knitting operation of the knitting needle 200 is a miss knitting.

  On the other hand, when the armature 43 is detached in the first separation region 12a of the needle selection actuator 10 shown in FIG. 3 (D), the raising butt 45 moves along the guide route A. Specifically, as shown in FIG. 5 (B), the lifting bat 45 detached in the separation region 12a is in a needle groove by the elastic force of the elastic leg piece 44 supported by the lower end surface 29 of the interrupt cam 20. It is urged toward the bottom of 101 and falls to the position of the middle step surface 23 of the interrupt cam 20. When the carriage 300 further travels, as shown in FIG. 3D, the lifting butt 45 is pushed toward the tooth opening side along the guide g1 formed by the step between the upper step surface 22 and the middle step surface 23, and the lower step Fall to surface 24. The raising bat 45 that has fallen on the lower step surface 24 is further pushed toward the mouth side along the guide g2 formed by the step between the middle step surface 23 and the lower step surface 24. As a result, the selector 4 is shown in FIG. It becomes A position like this. Here, since the wall portion 20b is formed between the lower step surface 24 and the middle step surface 23, the lifting butt 45 does not get over the guide g2 and get on the guide route H due to vibration of the carriage 300 or the like.

  Next, as shown in FIG. 3D, when the armature 43 passes through the first separation region 12a of the needle selection actuator 10 and is separated at the second separation region 12b, the lifting butt 45 Moves along the guide route H. Specifically, the lifting bat 45 falls on the middle step surface 23 on the right side of the interrupt cam 20 and is pushed toward the mouth side along the guide g3 formed by the step between the upper step surface 22 and the middle step surface 23. As a result, the selector 4 is in the H position. Here, due to the wall portion 20b provided in the interrupt cam 20, the raising bat 45 does not move too much toward the mouth side and does not get on the guide route A.

  In addition, this invention is not necessarily limited to embodiment mentioned above, In the range which does not deviate from the summary of this invention, it can change suitably and can implement. For example, the needle selection actuator 10 may face the selector 4 from the bottom surface side of the needle bed 100 and sink the selector 4 into the needle groove 101 so that the needle selection state is not set. In this case, the interrupt cam 20 is preferably arranged on the upper surface side of the needle bed 100 with respect to the suction surface 10 s of the needle selection actuator 10. Further, the abutting portion 44 b with which the interrupt cam 20 abuts in the selector 4 may be located outside the formation range of the attracted end face 43 s of the armature 43 in the extending direction of the needle groove 101. In addition, the interrupt cam 20 of the present embodiment has the guides g1 to g3, thereby also serving as a needle selection cam that changes the position of the selector 4, but may be an interrupt cam that does not have the role of the needle selection cam. . In that case, it is necessary to prepare a needle selection cam separately.

DESCRIPTION OF SYMBOLS 1 Needle selection system 2, 2T Needle selection apparatus 10 Needle selection actuator 10s Adsorption surface 11 Permanent magnet 12a, 12b Separation area | region 20 Interrupting cam 21 Inclination surface 22 Upper stage surface 23 Middle stage surface 24 Lower stage surface 20b Wall part 29 Lower end surface g1-g3 Guide 4 selector 41 base body 42 tip portion 43 armature 43s attracted end surface 44 elastic leg piece 45 raising butt 46 lowering butt 44h engaging portion 44b abutting portion 100 needle bed 101 needle groove 4w, 5w, 8w wire 200, 201 knitting needle 5 Needle body 6 Slider 61 Driving butt 7 Needle jack 71 Knitting bat 8 Select jack 81 Lifting butt 82 Position holding part 83 Pressing butt 9 Selector 91 Base body 92 Tip part 93 Armature 93s Adsorbed end face 94 Elastic leg piece 94b Spring Support point 95 Lifting bat 96 Lowering Butt 300 Carriage 30 Knitting cam 31 Needle raising cam 32 Degree cam 33 Fixed presser 34 Movable presser 35 Selector lowering cam 36 Select jack lowering cam 39 Needle selecting cam

Claims (6)

A selector constituting a part of a knitting needle disposed in each of a plurality of needle grooves arranged in parallel in the longitudinal direction of the needle bed of the flat knitting machine;
A needle selection device that is provided on a carriage that reciprocates in the longitudinal direction of the needle bed and changes a knitting operation to be performed by the knitting needle by changing the position of the selector along the extending direction of the needle groove;
The needle selection device may be configured so that the needle groove in the depth direction of the needle groove depends on whether the part of the selector is kept attracted to or separated from the attracting surface that attracts the part of the selector by magnetic force. In the needle selection system of a flat knitting machine having a needle selection actuator that selects the knitting needle by changing the position of the selector,
The selector is
A substrate;
Of the base body, a tip provided on the mouth side of the needle bed,
An armature provided on the tail end side opposite to the mouth side of the base body and disposed opposite to the suction surface of the needle selection actuator,
An elastic leg piece connected to the tip and extending toward the tail end;
With
The needle selector is
Protruding to a position facing the needle selection actuator, and when the carriage travels on the needle bed, the gap between the armature of the selector and the elastic leg piece is increased to increase the distance between the armature and the armature. An interruption cam for adsorbing the needle selection actuator to the adsorption surface of the needle selection actuator,
While the interrupt cam passes through the selector, the elastic leg piece of the selector contacts the interrupt cam, and the selector is supported by the interrupt cam by the contact. system.   Of the elastic leg pieces of the selector, the abutting portion that is a portion that abuts the interrupt cam and serves as a spring fulcrum that generates a resilient force that urges the armature in a direction approaching the elastic leg piece, 2. The needle selection system for a flat knitting machine according to claim 1, wherein the needle selection system is disposed within a formation range of the armature in the extending direction of the groove.   The needle selection system for a flat knitting machine according to claim 1 or 2, wherein the needle selection actuator is provided on the carriage so as to face the armature of the selector from the upper surface side of the needle bed. Among the armatures of the selector, a lifting bat is formed on the opposite side to the attracted end surface attracted by the needle selection actuator,
4. The guide according to claim 1, wherein the interrupt cam is formed with a guide that acts on the raising bat to advance the selector toward the mouth side. 5. Needle selection system for flat knitting machines. A knitting operation performed by the knitting needle according to a position along the extending direction of the needle groove, which is a member constituting a part of the knitting needle disposed in each of the needle grooves arranged in parallel in the longitudinal direction of the needle bed of the flat knitting machine In the selector that determines
A substrate;
A tip provided on one end of the base in the longitudinal direction;
An armature provided on the other end side in the longitudinal direction of the substrate;
An elastic leg piece connected to the tip portion and extending toward the other end side,
The elastic leg piece is in contact with the member when the member fixed to the carriage of the flat knitting machine is interposed between the armature and the elastic leg piece, and the armature approaches the elastic leg piece. A selector having a contact portion serving as a spring fulcrum for generating a resilient force to be urged to the spring. In a flat knitting machine that includes at least a pair of front and back needle beds, and performs knitting with a knitting needle provided in each of a plurality of needle grooves arranged in parallel to the needle beds,
A flat knitting machine comprising the needle selection system for a flat knitting machine according to any one of claims 1 to 4.

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