JP5172840B2 - Needle selection mechanism of flat knitting machine, needle selection mechanism selector of flat knitting machine and spacer for needle selection mechanism of flat knitting machine - Google Patents

Description

  The present invention relates to a needle selection mechanism of a flat knitting machine, a selector for a needle selection mechanism of a flat knitting machine, and a spacer for a needle selection mechanism of a flat knitting machine.

  Conventionally, in a flat knitting machine, a knitting needle that slides in a number of needle grooves arranged in parallel with a needle bed is driven by a knitting cam system mounted on a carriage that reciprocates along the longitudinal direction of the needle bed. Thus, the knitting operation is performed (see, for example, Patent Document 1). There are three basic knitting operations: knit, tack, and miss. The protruding position of the knitting needle toward the mouth is the most advanced position in the case of knit, the intermediate position in the case of tack, and the base position that is retracted to the opposite side of the tooth in the case of mistake.

  These knitting operations are performed by controlling the operation of the knitting needle by the needle selection mechanism. This needle selection mechanism will be described with reference to FIG. The knitting needle K includes a needle body 1, a needle jack 2, a select jack 3, and a selector 4 (FIG. 8A). On the needle bed 10 on which the knitting needles K are arranged, a large number of needle plates 10p are erected at a predetermined interval in a direction perpendicular to the paper surface, and a space between adjacent needle plates 10p becomes a needle groove. One knitting needle K is stored in one needle groove. Further, a spacer 5 is held in parallel with the selector 4 in the needle groove.

  The needle body 1 is a latch needle including a hook 11 and a latch 12 that opens and closes the hook 11, and a needle jack 2 is connected to the base side of the needle body 1.

  The needle jack 2 is a member that moves the needle 1 along the needle groove to perform a knitting operation. The needle jack 2 is provided with a transfer operation bat 21 and a knitting operation bat 22 used during operations such as knitting and stitch receiving. When these bats 21 and 22 are operated by a cam system, which will be described later, the needle jack 2 moves in the direction of the tooth opening g and advances the needle body 1 into the tooth opening g. Moreover, the intermediate part of the needle jack 2 is contact | abutted to the piano wire 10a which penetrates the needle plate 10p. The needle jack 2 has a base side end in contact with the bottom of the needle groove, and is elastically deformed and curved when pressed against the bottom side of the needle groove by the tip of the select jack 3 described below. .

  As will be described later, the select jack 3 is a member that selects whether or not to press the needle jack 2 according to its own position. This select jack 3 has three concave portions corresponding to the knit, tuck, and miss positions of the knitting needle K on the tail portion 32 side, and any of the concave portions engages with the piano wire 10d, thereby positioning in the forward / backward direction. Made. A selection bat 31 is provided at the tip of the select jack 3. When the selection butt 31 is pressed toward the bottom of the needle groove, the tip of the select jack 3 sinks into the needle groove, curving the intermediate portion of the needle jack 2, and the knitting operation bat 22 of the needle jack 2 is Sink into the needle groove. When the knitting butt 22 sinks in the needle groove, the above-described knitting cam system does not act on the knitting bat 22, so that the needle jack 2 is not slid in the direction along the needle groove.

  The selector 4 is a member for changing the position of the select jack 3, and is supported by piano wires 10b and 10c in the needle groove. The selector 4 is provided with a lowering butt 41 that pushes down the selector 4 toward the base side by the action of the knitting cam system, and a lifting butt 42 that pushes up the selector 4 toward the tooth opening g. Further, a needle selection bat 43 is provided between the lowering bat 41 and the raising bat 42. The needle selection bat 43 provided in each selector 4 adjacent on the needle bed is provided so that the position in the length direction of the selector 4 is sequentially different between the bats 41 and 42.

  Further, the selector 4 is positioned in the needle groove longitudinal direction by the piano wire 10b in the needle groove, and is supported so as to be able to swing around the contact point with the piano wire 10b at that position. Specifically, a base point engaging portion 4A that engages with the piano wire 10b is provided on the mouth side of the selector 4, and a concave portion 4B that engages with the piano wire 10c is formed near the lower portion of the lowering bat 41. In a state where the base point engaging portion 4A is engaged with the piano wire 10b, the selector 4 is allowed to swing by the amount of the concave portion 4B.

  The spacer 5 is housed in parallel with the selector 4 in the needle groove, and by making the selector thin (light), the reaction speed of the selector that is slid by the needle selection actuator and the knitting cam system is further increased. It is a member. As shown in FIG. 8 (B), the spacer 5 is disposed in a region substantially overlapping with the operation range of the selector 4 in the needle groove, and is supported by piano wires 10b, 10c, and 10e.

  How such a needle selection mechanism operates when the carriage travels along the needle bed will be described with reference to FIGS. 8B, 9, and 10.

  The needle selection by the needle selection mechanism includes selection of the first stage of selecting a knitting needle K to be missed or a knitting needle K to be knit or tucked, and two stages of selecting a knitting needle K to be tucked or a knitting needle K to be knit. There is eye selection (Patent Document 2 as a document showing a similar mechanism). The carriage includes a pair of cam systems 100 symmetrically with respect to the center line 100c in FIG. 10. For example, when the carriage travels to the left, the left cam system (not shown) ) Is the first needle selection actuator, and the left needle selection actuator 99R of the right cam system 100 is the second needle selection actuator. The arrows in FIG. 10 indicate the transition state of each bat when the cam acts.

  First, the cam system 100 passes the knitting needle K in the arrangement state of the knitting needles K shown in FIG. 8B (hereinafter, the positions of the selector 4 and the select jack 3 in this state are referred to as B positions (base positions)). Then, the first stage of needle selection is performed by the needle selection actuator 99L of FIG. 10 so that the needle selection butt 43 is not submerged in the needle groove. When the knitting needle K is in the non-needle selection state, the needle selection pad 43 and the raising butt 42 are submerged in the needle groove (see FIG. 9A), and the selector 4 includes the raising selector guide cam 88 and selector raising. The cam 89 and the subsequent needle selection actuator 99R are not affected. That is, it is a mistake that the needle jack 2 and the needle body 1 do not advance toward the mouth side.

  On the other hand, when the knitting needle K is selected by the first needle selection actuator 99L, the selector 4 advances to the tooth opening side by the engagement of the raising butt 42 and the raising portion 88a of the raising selector guide cam 88. At this time, the pushing piece 45 advances the select jack 3 toward the tooth opening side, and the arrangement state of FIG. 9B (hereinafter, the position of the selector 4 and the select jack 3 in this state is the H position (intermediate position)). ). Then, by the action of the selector guide cam 87 for lowering, only the selector 4 returns to the B position, and the knitting needle K is selected at the second stage by the needle selection actuator 99R while the select jack 3 is maintained at the H position.

  As for the knitting needle K which is not selected in the second selection, the raising butt 42 is submerged in the needle groove. That is, while the select jack 3 is maintained at the H position, the needle jack 2 is moved to the tooth opening side by the action of the fixed needle raising cam 82, the needle body 1 is advanced to the tooth opening g, and tacking is performed.

  Further, when the knitting needle K is selected by the second stage selection, the raising butt 42 is pushed up by the selector raising cam 89, and the selector 4 and the select jack 3 advance to the tooth opening side, and FIG. ) (Hereinafter, the position of the selector 4 and the select jack 3 in this state is referred to as an A position (advance position)). The selector 4 pushed up by the selector raising cam 89 is immediately returned to the B position by the lowering portion 87 a acting on the lowering butt 41.

  Then, in the A position, the knitting bat 22 advances the needle body 1 by the action of the fixed needle raising cam 82 and the movable needle raising cam 83, and moves the needle body backward by the action of the stitch cam 84 to knit the knit. Let it be done. After the second stage of needle selection is performed, the tail 44 of the selector 4 is pushed up by the return cam 90 so that the needle selection butt 42 protrudes from the needle groove, and the selector 4 is ready for needle selection for the next knitting. become.

Japanese Patent Publication No. 7-33619 JP-A-8-74146 (FIG. 1)

  In recent years, in flat knitting machines, it has been studied to increase the carriage movement speed in order to cope with further increase in the knitting speed. However, in order to increase the moving speed of the carriage, the conventional needle selection mechanism may cause a needle selection error or wear of the constituent members of the needle selection mechanism.

  As described above, the selector 4 is not only slid along the needle groove, but is also swung around the contact point with the piano wire 10b as a fulcrum, and the base side is submerged in the needle groove. The operation of the selector 4 needs to be performed only by the action of the cam system 100 without being affected by gravity or vibration. Therefore, the conventional selector 4 is curved in a bow shape over the entire length, and by making the both ends of the selector 4 contact the needle plate 10p and the intermediate part to the spacer 5, a predetermined sliding with respect to the operation of the selector 4 is achieved. Resistance is generated.

  However, in this selector 4, when the selector 4 is returned from the H position to the B position, the lowering butt 41 positioned above the swing fulcrum is pressed to the base side, so the tail portion 44 side of the selector is at the bottom of the needle groove. Easy to fall to the side. In particular, in the conventional selector 4, it is considered that sliding resistance acts at a position close to the lowering butt 41 as a power point and below (lower side of the needle groove) the lowering butt 41. Therefore, when the selector 4 is returned to the B position due to this sliding resistance, a moment is applied to swing the selector 4 in the direction in which the tail 44 side is submerged in the needle groove. In addition, this moment increases as the speed at which the selector 4 is moved backward is higher. As a result, the selector 4 does not move straight back to the base side, but the tail 44 side swings back to the base side, and the needle selection butt 43 sinks into the needle groove when the selector 4 returns to the B position. It may become. In the above example, the knitting needle K in such a state cannot receive the needle selection of the needle selection actuator 99R, resulting in a needle selection error.

  In the conventional selector, the sliding resistance always acts on both the advance / retreat operation and the swing operation of the selector regardless of the position. When the knitting speed is increased, if the sliding resistance against this forward / backward movement is large, the selector, spacer, needle plate, or movable protrusion of the needle selection actuator may be worn or damaged.

  The present invention has been made in view of the above circumstances, and one of its purposes is a needle selection mechanism in which a needle selection error hardly occurs even when the carriage is moved at a high speed, and a selector used in the needle selection mechanism. And providing a spacer.

  Another object of the present invention is to provide a needle selection mechanism that hardly causes wear or damage to components even when the carriage is moved at a high speed, and a selector and a spacer used in the needle selection mechanism.

As a result of investigations focusing on the following points, the present inventor has found that the selector and the spacer are moved so that the sliding resistance against the advance / retreat operation and the swing operation of the selector acts only at a specific position in the advance / retreat direction of the selector. The invention has been devised to complete the present invention.
(1) For the swinging operation of the selector, basically, sliding resistance only has to act when the selector is in the B position, and sliding resistance does not have to act at other positions.
(2) The sliding resistance with respect to the advance / retreat operation of the selector is preferably small, and this sliding resistance does not have to act at the H position or the A position.
(3) When the sliding resistance acts on the selector at a position away from the lowering bat, which is the power point, it is more effective in suppressing the swing.

  That is, the needle selection mechanism of the flat knitting machine of the present invention includes a spacer held at a predetermined position in a needle groove formed in a needle bed, and a selector that is parallel to the spacer and slidable in the needle groove. The selector is acted upon by the knitting cam system when the carriage on which the knitting cam system, the first needle selection actuator and the second needle selection actuator are mounted is reciprocated along the longitudinal direction of the needle bed. The select jack is positioned in one of three positions and moved forward and backward. The three positions are defined by the base position defined by the non-selected state of the first needle selection actuator, the intermediate position defined by the selection state of the first needle selection actuator, and the selection state of the second needle selection actuator. There are advance positions, and each position sequentially approaches the mouth side. Here, the spacer is a linear long piece along the needle groove, and has a spacer side sliding resistance acting portion formed facing the selector. The selector is a linear long piece along the needle groove, and has a front end disposed on the side of the mouth and a rear end disposed on the side opposite to the mouth. Further, the selector is formed on the distal end side thereof, and engages with an erection part fixed in the needle groove to position the selector at the base position, a selector side sliding resistance acting part, Is provided. The selector side sliding resistance acting part is a spacer side sliding resistance acting part in a state where the rear end side of the selector can swing in the depth direction of the needle groove with the contact point between the installation part and the selector as a fulcrum. When the selector is in the advanced position, it is not in contact with the spacer side sliding resistance acting portion so that the sliding resistance for the advance / retreat operation of the selector is not applied. It is characterized by being formed.

  In this needle selection mechanism, the selector further includes an extruding piece that pushes the select jack in the direction of the mouth according to the selection state of the first needle selection actuator or the second needle selection actuator, and the selector side sliding resistance action It is preferable that the portion is provided on the extruded piece.

  In the needle selection mechanism of the present invention, it is preferable that the selector side sliding resistance acting portion is in contact with the spacer side sliding resistance acting portion only when the selector is in the base position.

  On the other hand, the needle selection mechanism selector of the flat knitting machine of the present invention includes a spacer held at a predetermined position in a needle groove formed in a needle bed, a knitting cam system, a first needle selection actuator, and a second selection needle. This is a selector used for a needle selection mechanism of a flat knitting machine including a select jack that receives the action of a knitting cam system when a carriage on which a needle actuator is mounted is reciprocated along the longitudinal direction of the needle bed. The selector is slidably provided in the needle groove in parallel with the spacer, and the selector jack is positioned at three positions to advance and retract. The three positions are defined by the base position defined by the non-selected state of the first needle selection actuator, the intermediate position defined by the selection state of the first needle selection actuator, and the selection state of the second needle selection actuator. There are advance positions, and each position sequentially approaches the mouth side. This selector is a linear long piece, and has a tip end on the side of the mouth and a rear end opposite to the mouth. In addition, the selector is formed on the distal end side thereof, and engages with an erection part fixed in the needle groove to position the selector at the base position, and a selector side sliding resistance acting part. With. The selector side sliding resistance acting portion is provided on the spacer in a state where the rear end side of the selector can swing in the depth direction of the needle groove with the contact point between the installation portion and the selector as a fulcrum. When the selector is in the advanced position, it comes into non-contact with the spacer side sliding resistance acting part in contact with the spacer side sliding resistance acting part, and slides against the advance / retreat operation of the selector. It is formed so that resistance is not acted on.

  Furthermore, the needle selection mechanism spacer of the flat knitting machine according to the present invention includes a knitting cam system, a first needle selection actuator, and a carriage on which a second needle selection actuator is mounted. Used in a needle selection mechanism of a flat knitting machine comprising a select jack that receives the action of a knitting cam system when reciprocating along a direction, and a selector for positioning the select jack at three positions to advance and retreat It is a spacer. The three positions are defined by the base position defined by the non-selected state of the first needle selection actuator, the intermediate position defined by the selection state of the first needle selection actuator, and the selection state of the second needle selection actuator. There are advance positions, and each position sequentially approaches the mouth side. This selector is a linear long piece, and has a tip end on the side of the mouth and a rear end opposite to the mouth. The selector is formed on the distal end side thereof, and is provided facing a spacer and a base point engaging portion that engages with an erection portion fixed in the needle groove to position the selector at a base position. And a selector side sliding resistance acting portion. On the other hand, the spacer is a linear long piece that is held in a predetermined position in the needle groove in parallel with the selector. The spacer is in contact with the selector-side sliding resistance acting portion in a state in which the rear end side of the selector can swing in the depth direction of the needle groove with the contact point between the installation portion and the selector as a fulcrum. When the selector is in the advanced position, the sliding resistance with respect to the swinging action is applied, so that the sliding resistance with respect to the selector's advancing / retreating operation is not applied due to non-contact with the selector side sliding resistance acting portion. And a spacer side sliding resistance acting portion.

  According to the needle selection mechanism of the flat knitting machine of the present invention, the sliding resistance against the advance / retreat operation and the swing operation of the selector can be applied only at a predetermined position in the advance / retreat direction in the needle groove of the selector. Therefore, when the selector is returned from the H position (intermediate position) to the B position (base position), the rear end side of the selector can be suppressed from sinking into the needle groove, and occurrence of needle selection mistakes can be reduced.

  In addition, by specifying the position of the selector on which the sliding resistance acts, the sliding resistance against the forward / backward movement of the selector is reduced as much as possible, and even when the carriage is driven at high speed, the selector, spacer, needle plate, needle selection actuator It is possible to suppress wear and damage of the movable protrusions.

  Further, since both the selector and the spacer may have a linear shape, it is not necessary to bend the entire selector as in the prior art.

  In addition, in the needle selection mechanism of the present invention, if the selector-side sliding resistance acting portion is provided on the push-out piece of the selector, it is not necessary to provide the selector-side sliding resistance acting portion separately from the pushing piece. Normally, since the extruded piece is located at the rear end (base side) of the select jack, if this extruded piece is used as the selector side sliding resistance acting part, when the selector is returned to the base position, it is separated from the force point to the base side. A sliding resistance can be applied to the location, and the swing of the selector can be effectively suppressed.

  In the needle selection mechanism of the present invention, if the selector side sliding resistance acting part contacts the spacer side sliding resistance acting part only when the selector is at the base position, the sliding resistance only when the selector is at the base position. The sliding resistance due to the contact between the sliding resistance acting portions does not act at other positions. Therefore, especially the sliding resistance with respect to the forward / backward movement of the selector can be greatly reduced, and wear and damage of the movable projections of the selector, the spacer, the needle plate and the needle selection actuator can be suppressed.

  On the other hand, according to the selector or spacer for the needle selection mechanism of the present invention, it can be suitably used to configure the needle selection mechanism of the present invention.

It is a schematic block diagram of the selector of Embodiment 1, (A) is a front view, (B) is a bottom view. It is a schematic block diagram which shows the spacer of Embodiment 1, Comprising: (A) is a front view, (B) is a bottom view, (C) is an enlarged view of the part enclosed with the circle of (B). (A), (B) is a schematic partial cross-sectional view showing a state in which the knitting needle is in the B position in the needle selection mechanism of Embodiment 1, (A) shows a needle selection state, and (B) shows a non-needle selection state. Show. (A) is a schematic partial sectional view showing a state in which the knitting needle is in the H position in the needle selection mechanism of the first embodiment, and (B) is a schematic partial sectional view showing a state in which the knitting needle is in the A position in the needle selection mechanism of the first embodiment. . It is a schematic block diagram of the selector of Embodiment 2, (A) is a front view, (B) is a bottom view, (C) is an enlarged view of the part surrounded by the circle of (B). It is a schematic block diagram of the spacer of Embodiment 2, (A) is a front view, (B) is a bottom view. FIG. 6 is a schematic explanatory view showing a positional relationship between a selector and a spacer in Embodiment 2, wherein (A) is in a needle selection state at the B position, and (B) is in a non-needle selection state at the B position; C) shows when in the H position, and (D) shows when in the A position. (A) is a schematic configuration diagram of the knitting needle and a schematic partial sectional view of the needle bed, (B) is a schematic partial sectional view showing a state in which the knitting needle is housed in the needle bed, and the knitting needle is in the B position. Indicates a certain state. (A)-(C) is a schematic partial sectional view of a conventional needle selection mechanism, (A) is in a non-needle selection state at the B position, (B) is in the H position of the knitting needle. (C) shows a state when there is a state, and a state when the knitting needle is in the A position. It is explanatory drawing which shows the operation state of a needle selection mechanism.

Explanation of symbols

K Knitting needle g Tooth mouth 6, 60 Selector 61 Lowering butt 62 Lifting butt 63 Needle selection bat 64 Tail portion 65, 650 Pushing piece 66 Tip portion 6A Base point engaging portion 6B Recessed portion 7, 70 Spacer 71 Elastic bending portion 72-75 Recess 710 Empty space 750 Protruding piece 7A Horizontal piece 7B L-shaped piece 1 Needle body 11 Hook 12 Latch 2 Needle jack 21 Transfer operation bat 22 Knitting operation bat 3 Select jack 31 Selection butt 32 Tail 4 Selector 41 Lowering bat 42 Lifting butt 43 Needle selection bat 44 Tail 45 Extruded piece 4A Reference point engaging part 4B Recessed part 5 Spacer 10 Needle bed 10p Needle plate 10a to 10e Piano wire 100 Cam system 100c Center line 82 Fixed needle raising cam 83 Movable needle raising cam 84 Stitching 87 Lowering selector guide cam 87a Lowering portion 88 Raising selector guide cam 88a Raising portion 89 Selector raising cam 90 Return cam 99, 99L, 99R Needle selection actuator 99n Movable protrusion

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The needle selection mechanism of the present invention is characterized by the shape of the selector and the spacer among the knitting needles. The configuration other than the selector and the spacer is the needle selection of the conventional flat knitting machine already described with reference to FIGS. It is the same as the mechanism. Further, the needle selection method of the knitting needle, the operation mechanism of the cam system for the knitting needle, the knitting operation of the knitting needle, and the like are the same as those of the conventional flat knitting machine. Therefore, in the following embodiment, it demonstrates centering on difference with the conventional flat knitting machine.

<Embodiment 1>
FIG. 1A is a front view of the selector of the present invention, and FIG. 1B is a bottom view of the selector. 2A is a front view of the spacer of the present invention, FIG. 2B is a bottom view of the spacer, and FIG. 2C is an enlarged view of a circled portion of FIG. 2B.

  The selector 6 is a long piece having a shape viewed from the front and substantially the same as that of a conventional selector. However, when the selector 6 is viewed from the lower surface, unlike the conventional selector, it is not curved in the thickness direction and is straight. This selector 6 has a base point engaging portion 6A at a tip portion 66 on the side of the mouth, and a concave portion 6B is formed in the vicinity of a lower portion of a bat 61 described later. Further, a lowering butt 61 is disposed on the front end portion 66 side of the selector 6, and a raising butt 62 is disposed on the tail portion 64 side (rear end side) disposed on the base side, between the lowering bat 61 and the raising bat 62. A needle selection bat 63 is provided. Any of the bats 61, 62, 63 protrudes above the selector 6. Further, the selector 6 is provided with an extruding piece 65 protruding downward in the vicinity of the raising butt 62 of the selector 6. These parts 6A, 6B, 61 to 65 have the same functions as the parts having the same names in the conventional selector described with reference to FIGS. However, the extruding piece 65 has a function as a selector-side sliding resistance acting portion that comes into contact with the spacer 7 described later and generates a sliding resistance against the forward / backward movement and the swinging movement of the selector 6.

  On the other hand, like the selector 6, the spacer 7 is not curved in the thickness direction when viewed from the lower surface, and is straight. The spacer 7 has an elastic bent portion 71 that has a shape bent in a V shape when the spacer 7 is viewed from the lower surface and protrudes in the thickness direction of the spacer 7. The elastic bending portion 71 is a portion that contacts the pushing piece 65 and biases the selector 6 in the protruding direction of the elastic bending portion 71 when the selector 6 and the spacer 7 are arranged in parallel. It corresponds to. In this example, in order to form the elastic bent portion 71, the spacer 7 is bifurcated in the spacer width direction in the middle of the base side (left side in FIG. 2), one is a horizontal piece 7A, and the other is an L-shaped piece. 7B. The horizontal piece 7A extends to the base side, and its tip is a free end. In the vicinity of the portion where the horizontal piece 7A was formed, the thickness was made thinner than other portions, and the thin piece formed the horizontal piece 7A. On the other hand, the L-shaped piece 7B is positioned parallel to the upper part of the horizontal piece 7A and extends to the base side, and wraps downward from the tip of the narrow part, and is spaced from the free end of the horizontal piece 7A. It consists of a wide end edge that is located open. And the elastic bending part 71 was formed by bending this horizontal piece 7A in V shape. Since the horizontal piece 7A is thinner than portions other than the vicinity thereof, the horizontal piece 7A is suitable for giving a delicate elastic force to the selector 6 when bent in a V shape. As a result of the formation of such an elastic bent portion 71, the region other than the horizontal piece 7A in the spacer 7 is configured substantially on the same plane. In addition, the spacer 7 is provided with recesses 72 to 75 that engage with a piano wire (erection portion) that penetrates the needle plate of the needle bed.

  3 and 4 show a needle selection mechanism in which a knitting needle using the selector 6 and the spacer 7 described above is housed in a needle bed. FIG. 3 shows a schematic configuration of the needle selection mechanism in which the knitting needle is in the B position, FIG. 4 (A) shows a schematic configuration of the needle selection mechanism in which the knitting needle is in the H position, and (B). 3 (B) and FIG. 4, the needle plate is omitted, and in FIG. 4, the needle selection actuator is omitted.

  FIG. 3A shows the state of the knitting needle K in the needle selection state at the so-called B position which is the ground state. The spacer 7 is positioned by the concave portions 72 to 75 (FIG. 2) engaging with the piano wires 10 b to 10 e of the needle bed 10, respectively. The selector 6 is fitted into the needle groove so as to overlap the spacer 7 in the thickness direction. The combined thickness of the selector 6 and the spacer 7 (except for the elastic bent portion 71 and the thin portion in the vicinity thereof) is substantially the same as the width of the needle groove.

  Here, as shown in FIG. 3A, the elastic bent portion 71 of the spacer 7 and the extruded piece 65 of the selector 6 overlap each other in the thickness direction, and the selector 6 has a protruding direction of the elastic bent portion 71. It is energized (in the direction toward the back of the page). At this time, the apex portion of the bending of the elastic bending portion 71 is at a position in contact with the side surface of the extruded piece 65, and the force for biasing the selector 6 is maximized. As a result, the selector 6 is pressed against the side wall of the needle plate 10p, and a sliding resistance is applied so that the raising butt 62 and the needle selecting butt 63 are not submerged in the needle groove with the degree of gravity or vibration.

  Next, FIG. 3B shows a state where the knitting needle K is in the B position and is not selected. At this time, the movable protrusion 99n of the needle selection actuator 99 is driven to a position for pressing the needle selection butt 63 toward the needle groove side. When the needle selection actuator 99 passes over the knitting needle K in this state, the movable protrusion 99n presses the needle selection butt 63, and the raising butt 62 is submerged in the needle groove. At this time, the elastic bent portion 71 of the spacer 7 presses the side surface of the extruded piece 65 in the protruding direction of the elastic bent portion 71 at the apex of the bend. Since this pressing force becomes a sliding resistance against the swinging motion of the selector 6 with the contact point with the piano wire 10b as a fulcrum, the position of the selector 6 does not change due to gravity or vibration.

  When the knitting needle K is at the H position shown in FIG. 4A, the elastic bent portion 71 and the extruded piece 65 are in contact with each other at an inclined portion from the base to the apex of the elastic bent portion 71. That is, the elastic bent portion 71 presses the extruded piece 65 (selector 6) in the thickness direction of the spacer 7 with a looser force than in the B position. Further, when the knitting needle K is in the A position shown in FIG. 4B, the elastic bent portion 71 and the extruded piece 65 face each other at the root portion of the elastic bent portion 71 (horizontal piece 7A). 65 (selector 6) is not substantially biased in the thickness direction. Therefore, the sliding resistance against the forward / backward movement of the selector 6 between the A position and the H position, and between the H position and the B position is greatly reduced as compared with the conventional selector, and the selector 6 can be smoothly advanced and retracted. can do. Accordingly, even when the carriage travels at a high speed, it is possible to suppress wear and damage of the selector 6, the spacer 7, the needle plate 10P (FIG. 3), and the movable projection 99n of the needle selection actuator.

  Note that at the H and A positions, the piano wire 10c and the lower end surface of the selector 6 are in contact with the portion without the recess 6B, and the force with which the selector 6 is pressed in the thickness direction by the elastic bending portion 71 is weak. Even without or without, the raising butt 62 and the needle selection butt 63 of the selector 6 do not sink into the needle groove.

  In the knitting needle of the first embodiment having the configuration as described above, the position of the elastic bending portion 71 where the sliding resistance acts strongly when the selector 6 slides in the needle groove serves as the swing fulcrum of the selector 6. Since the selector 6 is located far away from the line 10b and the lowering bat 61 as the power point, it is difficult to rotate when the selector 6 returns from the H position to the B position. Further, when the selector 6 returns from the H position to the B position, the sliding resistance between the selector 6 and the spacer 7 is increased stepwise, so that the selector 6 is further difficult to rotate. In the present embodiment, since the knitting cam system shown in FIG. 10 is assumed, it is possible to avoid the second stage needle selection mistake as long as the rotation of the selector when moving from the H position to the B position is suppressed. However, in other knitting cam systems, even if the rotation of the selector when moving from the A position to the B position leads to a needle selection error, the rotation of the selector is suppressed in this embodiment or the next embodiment. Thus, the needle selection mistake can be avoided.

<Embodiment 2>
In the second embodiment, unlike the first embodiment, a needle selection mechanism of a flat knitting machine using a knitting needle K in which a portion that is partially bent in the selector is used instead of a spacer will be described. The needle selection mechanism of this embodiment is the same as that of Embodiment 1 except that the shapes of the spacer and the selector are different. Therefore, the difference from the first embodiment will be mainly described.

  5A is a front view of the selector of the present invention, FIG. 5B is a bottom view of the selector, and FIG. 5C is an enlarged view of a circled portion of FIG. 5B. FIG. 6A is a front view of the spacer of the present invention, and FIG. 6B is a bottom view of the spacer.

  The selector 60 of the present embodiment has substantially the same shape as the selector of the first embodiment when viewed from the front. However, when the selector 6 is viewed from the lower surface, the extruded piece 650 protrudes in a V shape in the thickness direction of the selector 60, and the extruded piece 650 becomes a selector side sliding resistance acting portion. In addition, the extruded piece 650 is inclined from the base side toward the distal end side, and has elasticity that biases a member arranged in parallel with the selector 60 in the protruding direction of the extruded piece 650.

  On the other hand, the spacer 70 is not curved in the thickness direction when viewed from the lower surface, is straight, and no portion protruding in the thickness direction is formed. A space 710 is formed in the spacer 70 at a location where the elastic bending portion 71 was provided in the first embodiment. Further, a projecting piece 750 is formed in the vicinity of the concave portion 75 so as to project toward the tip (tooth opening) side (right side in the drawing). The projecting piece 750 serves as a spacer side sliding resistance acting portion.

  Next, an arrangement state when the knitting needle using the selector 60 and the spacer 70 is stored in the needle groove will be described with reference to FIG. FIG. 7 is a diagram showing only the positional relationship between the selector 60 and the spacer 70. (A) is in the needle selection state at the B position, and (B) is in the non-needle selection state at the B position. C) shows when in the H position, and (D) shows when in the A position.

  As shown in FIGS. 7A and 7B, in the knitting needle having the configuration of the present embodiment, the extruded piece 650 of the selector 60 and the protruding piece 750 of the spacer 70 overlap each other at the B position. . Therefore, the extruded piece 650 biases the spacer 70 in the protruding direction of the extruded piece 650. In response to the reaction force against the bias, the selector 60 is pressed against the side wall of the needle groove, so that sliding resistance acts. As a result, the raising butt 62 and the needle selection bat 63 of the selector 60 are not submerged in the needle groove or the position of the selector 6 is changed by vibration or gravity.

  Further, as shown in FIGS. 7C and 7D, in the knitting needle of the present embodiment, the push piece 650 of the selector 60 is in the space 710 at the H position or A position, and the spacer 70 The protrusion 750 is not overlapped. For this reason, the spacer 70 is not urged in the protruding direction of the extruded piece 650 by the extruded piece 650. Therefore, when the selector 60 moves back and forth between the H position and the A position, the sliding resistance acting portions are No sliding resistance due to contact.

  In the knitting needle of the second embodiment having the configuration as described above, when the selector 60 moves between the A position and the H position, the sliding resistance between the selector 60 and the needle groove is substantially constant, and the conventional It is smaller than the sliding resistance in the structure. In this embodiment, when the selector 60 returns from the H position to the B position, the sliding resistance gradually increases. Therefore, even if the selector 6 is moved at high speed from the H position to the B position, the selector 60 is difficult to rotate.

  The needle selection mechanism of the present invention can be suitably used as a constituent member of a flat knitting machine that can increase the knitting speed. In addition, the selector or the spacer of the present invention can be suitably used for a needle selection mechanism corresponding to an increase in knitting speed.

Claims (5)

A knitting cam system, a first needle selection actuator, and a second selection unit are configured by a spacer held at a predetermined position in a needle groove formed on the needle bed and a selector that is parallel to the spacer and slidable in the needle groove. When the carriage on which the needle actuator is mounted is reciprocated along the longitudinal direction of the needle bed, the select jack that receives the action of the knitting cam system is positioned at the base position defined by the non-selected state of the first needle selection actuator. The needle is positioned at any one of three positions approaching the mouth side sequentially, an intermediate position defined by the selection state of the first needle selection actuator and an advance position defined by the selection state of the second needle selection actuator. A needle selection mechanism of a flat knitting machine having a selector for advancing and retreating in a groove,
The spacer is
A linear long piece along the needle groove, having a spacer side sliding resistance acting part formed facing the selector,
The selector is
A linear long piece along the needle groove, having a tip disposed on the side of the mouth and a rear end disposed on the side opposite to the mouth,
A base point engaging portion that is formed on the distal end side, engages with a construction portion fixed in the needle groove, and positions the selector at the base position;
In a state where the rear end side of the selector can swing in the depth direction of the needle groove with the contact point between the erection portion and the selector as a fulcrum, it slides against the swinging operation by contacting the spacer side sliding resistance acting portion. When the selector is in the advanced position, the selector side sliding resistance action is formed so that the sliding resistance against the forward / backward movement of the selector is not in contact with the spacer side sliding resistance action part. A needle selection mechanism for a flat knitting machine. Furthermore, the selector includes an extruding piece that pushes out the select jack in the direction of the mouth according to the selection state of the first needle selection actuator or the second needle selection actuator,
The needle selection mechanism for a flat knitting machine according to claim 1, wherein a selector side sliding resistance acting portion is provided on the extruded piece.   3. The flat knitting according to claim 1 or 2, wherein the selector side sliding resistance acting part is in contact with the spacer side sliding resistance acting part only when the selector is in the base position. Machine needle selection mechanism. A spacer that is held at a predetermined position in a needle groove formed in the needle bed, and a carriage on which the knitting cam system, the first needle selection actuator, and the second needle selection actuator are mounted along the longitudinal direction of the needle bed. This selector is used for the needle selection mechanism of a flat knitting machine that has a select jack that receives the action of the knitting cam system when reciprocating and is provided slidably in the needle groove in parallel with the spacer. The base position defined by the non-selected state of the first needle selection actuator, the intermediate position defined by the selection state of the first needle selection actuator, and the advance position defined by the selection state of the second needle selection actuator A selector for a needle selection mechanism of a flat knitting machine for positioning in any one of the three positions and advancing and retreating in the needle groove so as to gradually approach the mouth side.
This selector
A straight long piece, having a tip disposed on the mouth side and a rear end disposed on the opposite side of the mouth,
A base point engaging portion that is formed on the distal end side, engages with a construction portion fixed in the needle groove, and positions the selector at the base position;
When the rear end side of the selector is swingable in the depth direction of the needle groove with the contact point between the erection portion and the selector as a fulcrum, it contacts the spacer side sliding resistance acting portion provided on the spacer. When the selector is in the advanced position, the sliding resistance against the swinging action is applied, and the sliding resistance acting part of the selector is not in contact with the spacer side sliding resistance acting part so that the sliding resistance against the forward / backward movement of the selector is not applied. A selector for a needle selection mechanism of a flat knitting machine, comprising a selector side sliding resistance acting portion. When the carriage equipped with the knitting cam system, the first needle selection actuator and the second needle selection actuator is reciprocated along the longitudinal direction of the needle bed in which the needle grooves are arranged, the knitting cam system The select jack that is acted upon, the base jack defined by the non-selected state of the first needle selection actuator, the intermediate position defined by the selection state of the first needle selection actuator, and the second needle selection actuator A spacer used in a needle selection mechanism of a flat knitting machine, which includes a selector for positioning in any one of the three advance positions defined by the selected state and moving it forward and backward in the needle groove so as to approach the tooth mouth side sequentially. A spacer for a needle selection mechanism of a flat knitting machine held in a predetermined position in the needle groove in parallel with the selector,
The selector is
A straight long piece, having a tip disposed on the mouth side and a rear end disposed on the opposite side of the mouth,
A base point engaging portion that is formed on the distal end side, engages with a construction portion fixed in the needle groove, and positions the selector at the base position;
A selector side sliding resistance acting portion provided facing the spacer,
The spacer is
A straight long piece,
In a state where the rear end side of the selector can swing in the depth direction of the needle groove with the contact point between the erection part and the selector as a fulcrum, the selector side sliding resistance acting part comes into contact with the swinging action. Spacer-side sliding resistance formed so that sliding resistance is not in contact with the selector-side sliding resistance acting part and sliding resistance against the selector's advance / retreat operation is not applied when the selector is in the advanced position. A spacer for a needle selection mechanism of a flat knitting machine, comprising an action portion .

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