JP2552956Y2 - Compound needle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compound needle used in a knitting machine.

[0002]

2. Description of the Related Art As shown in FIG. 4, a compound needle 31 has a slider 34 slidably fitted to a needle body 33 having a hook 32 at the tip, and a needle jack 33 engaged with a rear end thereof. The butt 36 of 35 is moved forward and backward by abutting on a cam (not shown). The butt 36 is slidably fitted into a slider groove 38 provided on an upper edge 37 of the needle body 33, and the end is The slider 34 which is pinched and guided by the forked pinching piece 39 provided on the needle jack 35,
The slider butt 40 provided on the slider 34 abuts on a slider operation cam (not shown) provided separately from the cam for moving the needle body 33 forward and backward, thereby sliding the needle butt 40 on the needle body 33, The tongue 41 moves forward and backward with respect to the hook 32, and the hook 32 is closed or opened.

[0003] When knitting a knitted fabric using the compound needle 31, when the needle that has locked the old loop of the knitted fabric attempts to knock over by receiving the yarn supplied to the advance hook, the old loop is lowered. Under the force, the slider is urged in the opening direction, the tongue 41 of the slider separates from the hook 32, the old loop falls into the hook 32, and there is a situation where new thread is supplied there and it becomes a stitch like a tack. Sometimes happened.

[0004]

SUMMARY OF THE INVENTION In view of the above points, the present invention has been made in consideration of the fact that the slider is delusional even if a force is applied to the slider to move it during knitting, other than by a predetermined operation. Not intended to obtain a compound needle.

[0005] slider groove formed in the needle body, in compounding needle comprising slidably fitted a slider, the slider <br/> over upper edge and Sessu away topper an upper position of the slider the inner groove protrudes, advancing sliders in pairs on hooks provided at the front end of two Doru body
And when closing the hook, slide to the stopper and Taii
The upper edge of the slider has a concave fitting part that engages with the stopper .
When the rider closes the hook, the concave fitting and stopper
Mated .

[0006]

When the slider advances to the hook of the needle body and the tongue at the tip of the slider advances to a position where it engages with the hook, the recess provided in the upper edge portion of the slider forms the slider groove of the needle body. Engages with a stopper provided across. Since the depth of the recess is not so large, when the slider butt comes into contact with the slider operation cam, the engagement between the stopper and the recess is easily released, and the slider can slide. When the slider is engaged, the lower edge of the slider comes into contact with the bottom of the slider groove, and the elasticity of the slider causes the upper edge to be pressed against the stopper. It is.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the compound needle of the present invention will be described below with reference to the drawings.

The compound needle 1 of the present invention comprises a needle body 2, a slider 3 and a needle jack 4. The needle main body 2 is provided with a hook 5 at the leading end, and the needle jack 4 is engaged near the opposite end.
Although not shown, the needle body 2 and the needle jack 4 may be integrated. In addition, when the transfer needle is used as a transfer needle, an elastic guide piece 6 for transfer is projected on the side surface. A slider groove 8 into which the slider 3 is inserted is cut in the upper edge 7 of the needle body 2. The slider groove 8 follows the shape of the slider 3 described later,
The vicinity of the top is a deep bottom 9 and the other is a shallow bottom 10.
A stopper 11 is provided across the slider groove 8 in the upper groove of the slider groove 8 at an intermediate position between the deep bottom portion 9 and the shallow bottom portion 10. The stopper 11 has a vertical surface 12 on the shallow bottom 10 side.
Has a horizontal surface 13 at the bottom, but is not necessarily limited to this shape. With the above configuration, the slider 3
Slides while being sandwiched from above and below by the deep bottom portion 9, the shallow bottom portion 10, and the stopper 11.

The deep bottom portion 9 is a throat portion 14 of the needle body 2.
The cam surface 15 is the deepest part of the groove, and the position of the cam surface 15 near the hook 5 is shallow, and the position far from the hook 5 is deep.

The slider 3 is provided with a tongue 17 at the leading end 16, a loop engaging step 18 and a position regulating step 19 at the upper edge of the leading end 16, A part 20 is provided. The lower edge of the leading portion 16 extending rearward from the tongue 17 is an arc-shaped sliding edge 21, and the slider 3 is
When the sliding edge 21 is inserted into the
To fit. 22 is a slider bat.

As shown in FIG. 1, the slider 3 has an end portion of a shank 23 clamped by a U-shaped clamping piece 24 of a needle jack 4 which is locked to the needle body 2, and is guided by the sliding member 24 when sliding. You.

When the compound needle 1 is inserted into the needle groove, the shank 23 of the slider 3 fits into the shallow bottom portion 10 of the slider groove 8 of the needle body 2 and the head portion 16 fits into the deep bottom portion 9. The sliding edge 21 of the leading end 16 is in contact with the cam surface 15 of the deep bottom 9 of the needle body 2.

The slider 3 slides in the slider groove 8 of the needle main body 2 when an operation cam (not shown) abuts on the slider butt 22. In the state of FIG. 3A in which the slider 3 is most lowered in the needle body 2, the tongue 17 of the slider 3 sinks into the deep bottom 9 of the slider groove 8 of the needle body 2, and the loop locking step 18 Is in contact with the horizontal surface 13 of the stopper 11. And
When the slider 3 advances (ups) toward the hook 5 under the action of a slider operation cam (not shown) via the slider butt 22, the sliding edge 21 of the slider head 16 becomes the cam surface of the deep bottom 9 of the slider groove 8. Then, the tongue 17 of the slider 3 gradually emerges from the deep bottom portion 9 of the slider groove 8. That is, assuming that the distance between the lowest part at the head of the deep bottom part 9 and the top part of the tongue 17 is H in the state of FIG. 3A where the tongue 14 is most submerged in the slider groove 8, the slider 3 advances toward the hook 5. (Ascending) FIG. 3B,
As shown in C and D, the intervals become H ′, H ″, and H ″ ″, respectively. Thus, slider 3 is hook 5
Approaching the hook 5 from the inside, the position regulating step 19 provided on the leading end 16 abuts on the vertical surface 12 of the stopper 11, and at that time, the recess 20 engages with the horizontal surface 13 of the stopper 11. Thereby, the slider 3 maintains the engagement state with the needle main body 2 and does not move. Therefore, at the time of knockover, the old loop enters the hook, and there is no situation in which a stitch such as a tack is formed together with the newly supplied yarn, and the slider is operated.

[0014]

As described in detail above, the compound needle of the present invention is provided with a stopper in the upper part of the slider groove, which is provided with a stopper which is slidably provided in the slider groove and which is in contact with the upper edge of the slider. When the slider advances to the hook provided at the tip of the needle body, a concave portion is formed at a position facing the stopper,
When the slider is advanced, the recessed portion will be locked to the stopper, and at the time of knitting, other than by a predetermined operation,
Even if the slider is given the power to move it, the slider does not move. Therefore, at the time of knockover, it is possible to prevent a situation in which the old loop enters the hook and forms a stitch such as a tack stitch together with the new yarn supply.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a compound needle of the present invention.

FIG. 2 is a longitudinal sectional view of a shank portion.

FIG. 3 is a side view of the head showing the movement of the slider sequentially.
A, B, C and D are activated in this order.

FIG. 4 is an overall side view showing a conventional example.

[Explanation of symbols]

 1 Compound needle 2 Needle body 3 Slider 8 Slider groove 11 Stopper 16 Slider top

Claims (1)

(57) [Scope of request for utility model registration] 1. A slider groove provided in a needle body,
In slidably compound needle comprising fitted the slider protrudes a slide <br/> Zehnder upper and Sessu away topper an upper position of the slider the inner groove, provided at the tip of the two Doru body and when the slider closes the advance <br/> out Shi hook against the hook, the scan of the stopper and Taii
Form a concave fitting part to engage with the stopper on the upper edge of the rider ,
When the hook is closed by the slider, the concave fitting part and the stopper
Compound needle with fitting .