JP2015074865A - Compound needle for flat knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compound needle for a flat knitting machine capable of appropriately suppressing deflection of a blade in a width direction.SOLUTION: Reinforcement lines 5h and 6h are formed on two blades 5 and 6 included in a slider 3 to appropriately reinforce stiffness in a width direction. As shown in (b), the reinforcement line 5h on the blade 5 is formed on a part which is located above a part in an opening/closing part 5a accommodated in a slider groove 2c, and which shifts to a vicinity of a front edge 5e of an arm 5d. On the rear side of the part, a guide part 5f is also formed. As shown in (c), the reinforcement line 5h is bulged in a side cross section of the blade 5 outward in the width direction and forms a linear part extending in a longitudinal direction as shown in (a) and (b). The reinforcement line 6h of the blade 6 is also formed in the same way. Such linear parts can be easily formed by bending of metal thin plates made into the blades 5 and 6.

Description

  The present invention opens and closes the hook at the front end of the needle body with a tongue that is divided into two blades at the front end of the slider that moves forward and backward with respect to the needle body, and the tongue moves over the hook and moves into the tooth opening. The present invention also relates to a compound needle for a flat knitting machine.

  Conventionally, in a flat knitting machine, a knitting needle is accommodated in a needle groove arranged in parallel with a needle bed, a hook is advanced and retracted to a tooth opening facing the front end side of the needle bed, and a knitted fabric is knitted with a knitting yarn fed to the tooth opening. It is organized. As the knitting needle, a combination needle that opens and closes the hook opening with a slider tongue is used together with a latch needle that opens and closes the hook opening with a latch (see, for example, Patent Document 1).

  In a flat knitting machine, at least a pair of needle beds are provided on both sides of the front and rear sides of the mouth and are opposed to each other. Each needle bed is inclined such that the side of the mouth is higher and lower when it is away from the mouth. In the following description, the direction is determined with reference to the individual needle bed, the front side is the front, the rear side is the rear side, and the direction in which the knitting needle moves within the needle groove is the front-rear direction. Further, the direction in which the needle floats in the needle groove is defined as the upper direction, and the direction in which it sinks is defined as the lower direction. Furthermore, the direction perpendicular to the front-rear direction and the up-down direction in the needle groove is taken as the width direction.

  FIG. 6 shows a schematic configuration of a main part of the compound needle 1 disclosed in Patent Document 2. However, illustrations of the configuration relating to the needle bed and the needle groove are omitted. The compound needle 1 includes a needle body 2 and a slider 3. The slider 3 includes a base 4 and two blades 5 and 6. The two blades 5 and 6 are accommodated in the blade groove 4a in the base 4 so as to overlap in the width direction. The main components of the composite needle 1 are formed by processing a metal plate.

  The needle body 2 has a hook 2a at the front end and a needle stem 2b following the hook 2a. The needle stem 2b is provided with a slider groove 2c in the middle in the width direction. The slider groove 2c is a cam surface 2d having an uneven surface on the front side of the bottom surface. The rear side of the slider groove 2c is a clear portion 2e in which the bottom portion is deleted from below. The blades 5 and 6 have opening and closing portions 5a and 6a as portions accommodated in the slider groove 2c of the needle body 2 at least in the state where the two blades are overlapped. Tongues 5b and 6b are provided at the front ends of the opening and closing parts 5a and 6a.

  Hereinafter, FIG. 6A and FIG. 6B show only the blade 5, but the blade 6 is basically the same. FIG. 6A shows a state in which the hook 2a is closed by the tongue 5b. The stitches are formed by opening and closing the hook of the hook 2a with the tongue 5b. FIG. 6B shows a state where the tongue 5b is advanced forward beyond the hook 2a. In this state, holding the stitch in the state where the shoulder 5c is retracted to the tongue 5b, the tongue 5b advances to the mouth, and passes the stitch to the hook 2a of the needle body 2 that advances from the opposing needle bed. Transfers can be made. FIG. 6C shows a configuration in which the two blades 5 and 6 are viewed from the right side.

  In the upper part of the opening / closing part 5a of the blade 5, the arm 5d extends rearward from a position behind the shoulder part 5c. In the vicinity of the front edge 5e of the arm 5d and the vicinity of the rear end of the connection portion between the opening / closing portion 5a, a guide portion 5f is provided as a recess entering from the rear. When the tongue 5b of the opening / closing part 5a retracts from the hook of the hook 2a and opens the hook of the hook 2a, the guide part 5f is fitted into a pressing part provided behind the illustrated range of the needle body 2. The tongue 5b is submerged in the slider groove 2c. When the tongue 5b is submerged in the slider groove 2c, the arm 5d bends downward. The arm 5d extends rearward so as to pass above the slider groove 2c, leaving room for bending downward, and is connected to the base body 4 in the middle of the extension. On the upper part of the opening / closing part 5a, curved parts 5g, 6g are formed between the shoulder part 5c and the front edge 5e of the arm 5d so that the upper edge is opened outward in the width direction. Is easy to insert.

  In the compound needle disclosed in Japanese Patent Application Laid-Open No. H10-228707, a notch into which portions corresponding to the curved portions 5g and 6g are fitted is provided on the side wall of the slider groove of the needle body. By this fitting, the tongue with the hook opened is sunk in the slider groove. The portion corresponding to the arm extends rearward from the portion corresponding to the opening / closing portion with the lower portion accommodated in the slider groove.

Japanese Patent No. 3577038 JP 2012-112059 A

  In the compound needle 1, as shown in FIG. 6 (b), in the state where the tongues 5b and 6b advance beyond the hook 2a of the needle body 2 while holding the stitch to be transferred near the shoulder 5c, The lower portions of the open / close portions 5a and 6a are only accommodated in the slider groove 2c. When the transfer involves racking for swinging the stitches in the width direction, depending on the conditions such as swinging some stitches in a different direction from the other stitches, the tangs 5b and 6b that hold the stitches in the width direction May be applied. In particular, in a fine gauge flat knitting machine in which the arrangement pitch of the knitting needles is small, the plate thickness of the blades 5 and 6 is thin, and the bending rigidity in the width direction which is the plate thickness direction is insufficient. In the fine gauge, the width of the needle body 2 is also reduced. When a force in the width direction is applied to the stitch, the blades 5 and 6 and the needle body 2 sandwiched between the blades 5 and 6 are bent in the width direction and bent, and the hook 2a of the needle body 2 receives the stitch from the opposing needle bed. However, there is a risk that the blades 5 and 6 cannot be properly entered. In order to prevent such a situation, if the rigidity of the blades 5 and 6 is increased, there is a possibility that the elastic deformation necessary for opening and closing the hook 2a becomes difficult.

  The objective of this invention is providing the compound needle of the flat knitting machine which can suppress appropriately the bending to the width direction of a braid | blade.

In the present invention, the slider that advances and retreats with respect to the needle body is formed by combining two blades provided with a tongue that opens and closes the hook of the needle body at the front end and the base, and the blades are juxtaposed in the width direction. It is possible for the tongue to move over the hook and advance into the mouth,
In the needle body, the needle stem that follows the back of the hook is formed with a slider groove that accommodates the lower part of the opening and closing part including the tongue and the shoulder part behind the tongue,
Each blade extends rearward and is coupled to the base body at a coupling portion provided in the middle of the arm passing above the slider groove.
In the compound needle of flat knitting machine,
Each blade is at least one of the opening and closing part or the vicinity of the front edge of the arm, and a range in which the tongue is behind the hook and forward of the base body in a state where the tongue extends beyond the hook and advances into the mouth for transfer. And, at a position higher than the portion accommodated in the slider groove, a reinforcing line formed by bending outward in the width direction is provided so as to include a component in the front-rear direction.
This is a compound needle of a flat knitting machine.

Further, in the present invention, the reinforcing line is formed as a linear portion that bulges outward in the width direction and extends in the front-rear direction in a side cross section of the blade.
It is characterized by that.

In the present invention, the front edge of the arm is formed to rise while being inclined from the rear of the shoulder portion, and the reinforcing line opens the inclined front edge outward in the width direction. Formed by bending,
It is characterized by that.

  According to the present invention, the reinforcing line is formed by bending outward in the width direction on at least one of the open / close portions of the two blades or the vicinity of the front edge of the arm with the slider. Reinforcing line is formed at a position higher than the part accommodated in the slider groove, behind the hook and in front of the base when the tongue is advanced over the hook into the tooth opening for transfer. Is done. The range in which the reinforcing line is formed is above the portion accommodated in the slider groove, and is not supported by other members when moving beyond the hook for transfer. As the plate thickness of the blade becomes thinner, it becomes easier to bend in the width direction, but the reinforcement line is formed to include components in the front-rear direction, so that the rigidity can be increased. The reinforcement line is formed behind the hook in the state where it has advanced to the mouth for transfer, so the elastic deformation of the front part of the hook is not hindered, and the blade is bent in the width direction. It becomes possible to suppress appropriately.

  Further, according to the present invention, the reinforcing line may be formed as a linear portion that bulges outward in the width direction and extends in the front-rear direction on the side cross section of the blade. Can be formed.

  Further, according to the present invention, the reinforcement line may be formed by bending the front edge of the arm so as to open outward in the width direction, and thus can be easily formed by bending from the periphery of the opening / closing part.

FIG. 1 is a partial plan view, a front view, and a side sectional view showing a schematic configuration of a slider 3 of a compound needle 1 as a first embodiment of the present invention. FIG. 2 is a front view showing the configuration and basic operation of the compound needle 1 including the slider 3 of FIG. FIGS. 3A and 3B are a partial front view and a side view showing a configuration in which the composite needle 1 of FIG. 2 reinforces the rigidity in the width direction. FIG. 4 is a partial front view and a side view showing a configuration for reinforcing the rigidity in the width direction of the slider 3 of the compound needle 1 as the second embodiment of the present invention. FIG. 5 is a partial plan view, a front view, and a diagram showing a bending state of the configuration for reinforcing the rigidity in the width direction of the slider 3 of the compound needle 1 as the third embodiment of the present invention. FIG. 6 is a front view and a right side view showing the configuration and basic operation of the compound needle 1 according to the prior art.

  1, 2, and 3, as a first embodiment of the present invention, a schematic configuration, basic operation, and a configuration that reinforces rigidity in the width direction of the compound needle 1 are shown. 4 and 5 show a configuration for reinforcing the rigidity in the width direction as Example 2 and Example 3 of the present invention. In each embodiment, the present invention is applied to a compound needle disclosed in Patent Document 2, but the present invention is similarly applied to a compound needle disclosed in Patent Document 1. Can do.

  In each drawing, portions corresponding to the portions described above are denoted by the same reference numerals including those in FIG. 6, and redundant description may be omitted. Further, reference numerals that are not attached to the drawings to be described may be referred to and those that are added to the above-described drawings may be referred to.

  FIG. 1 shows a schematic configuration of a front portion of a slider 3 used in a compound needle 1 described later with reference to FIG. 2 as Embodiment 1 of the present invention. FIG. 1 (a) is a plan view, and FIG. Fig. 1 (c) shows a front view, and Fig. 1 (c) shows a side cross-sectional view taken along the section line CC of Fig. 1 (b). In the compound needle 1 of the present embodiment, reinforcement lines 5h and 6h are formed on the two blades 5 and 6 included in the slider 3 to reinforce the rigidity in the width direction. As shown in FIG. 1 (b), the reinforcing line 5h of the blade 5 is located above the portion accommodated in the slider groove 2c in the opening / closing portion 5a and in the vicinity of the front edge 5e that is forward of the base 4 by the arm 5d. Formed at the transitional part. A guide portion 5f is also formed on the rear side of the transition portion.

  As shown in FIG. 1 (c), the reinforcing line 5h bulges outward in the width direction at the side cross section of the blade 5, and as shown in FIGS. 1 (a) and 1 (b), in side view. It becomes a linear part extended in the front-back direction. The reinforcing line 5h is not protruded inward in the width direction. The reinforcing line 6h of the blade 6 is formed in the same manner. Such reinforcing lines 5h and 6h can be easily formed by bending a thin metal plate to be the blades 5 and 6.

  FIG. 2 shows the configuration and basic operation of the compound needle 1 including the slider 3 of FIG. FIG. 2 (a) shows a state in which the slider 3 is retracted to the end with respect to the needle body 2, and the tongue 5b with the hook 2a opened is submerged in the slider groove 2c. The lower part of the opening / closing part 5a of the blade 5 is retreated to the clear part 2e whose bottom is opened by the slider groove 2c, and is guided so that the guide part 5f is fitted to the pressing part 2f provided on the needle body 2. By pressing the guide portion 5f by the pressing portion 2f, the tongue 5b sinks below the upper surface of the needle stem 2b, and the stitches in the hook 2a can smoothly move to the needle stem 2b. The blade 5 is coupled to the base 4 of the slider 3 at a coupling portion 3a provided in the middle of an arm 5d extending rearwardly above the slider groove 2c. The same applies to the blade 6.

  FIG. 2B shows a state in which the slider 3 is moved forward relative to the needle body 2 and the hook 2a is closed with the tongue 5b. The lower part of the opening / closing part 5a rises while being guided by the cam surface 2d, and the tongue 5b can also rise to close the hook 2a. FIG. 2C shows a state in which the tongue 5b is advanced forward beyond the hook 2a to the transfer position where the stitch 7 is locked. The stitch 7 to be transferred is retracted and held up to the shoulder 5c. Since the reinforcing line 5h bent so as to extend in the front-rear direction is provided, the opening / closing portion 5a does not have insufficient rigidity in the width direction and is difficult to bend. However, the reinforcing line 5h is more than the hook 2a. Is also formed rearward, so that the elastic deformation necessary to open and close the hook 2a is possible.

  FIG. 3 shows a configuration in which the rigidity in the width direction is reinforced by the compound needle 1 of FIG. Fig.3 (a) shows the state which has closed the hook of the hook 2a with the tongue 5b shown in FIG.2 (b). FIG. 3B shows a right side view of the two blades 5 and 6. However, in the state where the hook 2a is sandwiched between the blades 5 and 6, the interval between the blades 5 and 6 is increased, but for the sake of convenience of description, it is shown in a closed state. 3 (c), as shown in FIG. 2 (c), the tongue 5b moves over the hook 2a into the mouth, and is transferred to the hook 2a of the needle body 2 that advances into the tooth opening from the opposite needle bed. Indicates possible states. Since the hook 2a is sandwiched between the blades 5 and 6, the interval between the tongues 5b and 6b is widened on the front side, and the hook 2a of the needle body 2 from the opposing needle bed can be inserted.

  As shown in FIG. 3C, a reinforcing line 5h for reinforcing bending rigidity is provided at a position higher than the portion accommodated in the slider groove 2c in the opening / closing portion 5a of the blade 5. The reinforcement line 6h of the blade 6 is also provided in the same manner. The positions where the reinforcing lines 5h and 6h are provided may be provided in the vicinity of the front edge 5e serving as the front end of the arm 5d above the position shown in the figure. The reinforcing lines 5h and 6h are formed in a straight line extending in the front-rear direction, but may be inclined or curved as long as they include a component in the front-rear direction.

  The portion connecting the open / close portions 5a, 6a of the two blades 5, 6 and the upper portions of the open / close portions 5a, 6a and the vicinity of the front edge 5e of the arm 5d with the slider 3 is above the portion accommodated in the slider groove 2c. Thus, when advancing beyond the hook 2a, no support is received from other members. As described above, if the plate thickness of the blades 5 and 6 is reduced with a fine gauge flat knitting machine, it becomes easy to bend in the width direction if a horizontal force is applied during transfer. If the reinforcing lines 5h and 6h for reinforcing the bending rigidity are provided at least in the vicinity of the front edge 5e of the opening / closing part 5a or the arm 5d as in this embodiment, the blades 5 and 6 are bent in the width direction. Can be suppressed. Even if the reinforcing lines 5h and 6h are provided, they are behind the hook 2a at the transfer position, so that there is no hindrance to the elastic deformation required when the blades 5 and 6 open and close the hook 2a.

  FIG. 4 shows a configuration for reinforcing the rigidity in the width direction of the slider 3 of the compound needle 1 as the second embodiment of the present invention. FIG. 4A shows a state in which the tongue 5b has advanced forward beyond the hook 2a up to the transfer position. FIG. 4B shows a state where the two blades 5 and 6 are viewed from the right side. However, as in FIG. 3B, the blades 5 and 6 are shown in a closed state. The front edges 5e and 6e of the present embodiment are formed so as to rise from the rear of the curved portions 5g and 6g and rise while moving backward, and the reinforcement lines 5i and 6i are formed by inclining the front edges 5e and 6e that are inclined. , Bent to open outward in the width direction.

  Although the reinforcement lines 5i and 6i are formed to be inclined with respect to the front-rear direction instead of the front-rear direction, they include the components in the front-rear direction, so that the rigidity in the width direction can be reinforced and enter from the opposite needle bed. You can also guide the incoming needle. Further, the reinforcing lines 5i and 6i may be formed by bending the front edges 5e and 6e of the arm 5d so as to open outward in the width direction, so that they are easily formed by bending from the periphery of the opening / closing portions 5a and 6a. can do. Such reinforcing line portions 5i and 6i are formed at positions different from the reinforcing lines 5h and 6h of the first embodiment. Therefore, both the reinforcing lines 5h and 6h; 5i and 6i are formed to further increase the rigidity. it can.

  FIG. 5 shows a configuration for reinforcing the rigidity in the width direction of the slider 3 of the compound needle as the third embodiment of the present invention. FIG. 5A is a plan view, and FIG. 5B is a front view, showing positions where the reinforcement lines 5j and 6j are formed. The reinforcement lines 5j and 6j are formed in the same manner as the reinforcement lines 5i and 6i of the second embodiment, and are further formed as positions and shapes that continue to the curved portions 5g and 6g. The reinforcement lines 5j and 6j have the same effect as the reinforcement lines 5i and 6i, and are formed continuously between the reinforcement lines 5i and 6i and the curved portions 5g and 6g, so that the rigidity can be improved. it can.

  The blades 5 and 6 are part of the compound needle 1 accommodated in the needle groove, and the compound needle 1 is accommodated in the needle groove and slides in the front-rear direction. Therefore, the width between the front edges 5e and 6e bent outward in the width direction by the reinforcing lines 5j and 6j of the present embodiment and the reinforcing lines 5i and 6i of the second embodiment is also made equal to or smaller than the width of the needle body 2. Is preferred. Similarly, it is preferable that the width between the reinforcing lines 5h and 6h of the first embodiment is equal to or smaller than the width of the needle body 2.

DESCRIPTION OF SYMBOLS 1 Compound needle 2 Needle main body 2a Hook 2b Needle stem 2c Slider groove 3 Slider 4 Base body 5,6 Blade 5a, 6a Opening / closing part 5b, 6b Tongue 5c Shoulder part 5d Arm 5e, 6e Front edge 5h, 6h; , 6j Reinforcement line

Claims (3)

The slider that advances and retreats with respect to the needle body is formed by combining two blades and a base, which are provided with a tongue that opens and closes the hook of the needle body at the front end, the blades are juxtaposed in the width direction, and the tongue is attached to the hook. It is possible to transfer to the mouth of the mouth beyond
In the needle body, the needle stem that follows the back of the hook is formed with a slider groove that accommodates the lower part of the opening and closing part including the tongue and the shoulder part behind the tongue,
Each blade extends rearward and is coupled to the base body at a coupling portion provided in the middle of the arm passing above the slider groove.
In the compound needle of flat knitting machine,
Each blade is at least one of the opening and closing part or the vicinity of the front edge of the arm, and a range in which the tongue is behind the hook and forward of the base body in a state where the tongue extends beyond the hook and advances into the mouth for transfer. And, at a position higher than the portion accommodated in the slider groove, a reinforcing line formed by bending outward in the width direction is provided so as to include a component in the front-rear direction.
A compound needle of a flat knitting machine. The reinforcing line is formed as a linear portion that bulges outward in the width direction and extends in the front-rear direction in a side cross section of the blade.
The compound needle of the flat knitting machine according to claim 1. The front edge of the arm is formed so as to rise while being inclined from the rear of the shoulder, and the reinforcement line is formed by bending the inclined front edge so as to open outward in the width direction. ,
The compound needle of the flat knitting machine according to claim 1 or 2, characterized in that.

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