JPH0578962A - Compound needle for knitting machine - Google Patents

Abstract

PURPOSE:To accurately guide a needle hook on the receiving side of stitches to a stitch receiving position by forming slopes for leading the hook on the receiving side of the stitches on a needle body and a slider. CONSTITUTION:Slopes 18 and 19 for leading a hook of a needle on the stitch receiving side are formed on a needle body 2 and a slider 3. In a state of a compound needle advanced to the stitch delivering position and farthest from a tongue of the slider, the respective slopes formed on the needle body and slider form one guide surface in cooperation.

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, and more particularly to a compound needle capable of transferring.

[0002]

2. Description of the Related Art A slider, which is slidably assembled in a groove formed in a needle body, moves back and forth in a relative movement relationship with the needle body, and a tongue of the slider is projected and retracted from the needle body. Japanese Unexamined Patent Publication (Kokai) No. 3-119160 discloses a compound needle for a knitting machine of a type in which a hook of a needle body is opened and closed and provided with an elastic guide piece for transfer.

In the compound needle of the above-mentioned publication, a slider provided on the needle body is slidably fitted into the slider body, and the slider bottom is brought into contact with the head of the slider, and the slider is moved forward and backward with the cam surface as a cam surface. The hook can be opened and closed, and an elastic guide piece for transfer is fixed to the side surface of the needle body, and a notch for guiding the hook of the needle on the stitch receiving side is formed in the needle body.

However, as shown in FIG. 7, the notch 22 formed in the needle body 24 has an elastic guide piece 23 for transfer.
Since it is formed by cutting off only the corner on the outer side of the bottom of the needle body 24 on the side facing the needle body 24, the needle on the delivery side slightly bends toward the needle on the reception side due to, for example, the tension of the knitting yarn. It is difficult to accurately set the positional relationship of the needles facing each other in the front and back when the stitches are transferred in the state where the stitches are transferred or when the knitting machine has a fine gauge. There is a problem that the needle is damaged without being guided to the stitch receiving position and collides with the needle body on the delivery side. Further, in a compound needle having a configuration in which an opening is formed below the slider groove so that fiber dust such as cotton wool does not collect in the slider groove, there is a problem that a hook enters the opening other than the above. .

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a slider fitting groove as described in the above publication is provided up to the vicinity of the sliding surface of the needle body on the bottom of the needle groove. An object of the present invention is to provide a compound needle in which the hook of the needle on the stitch receiving side can be accurately guided to the stitch receiving position even when the formed compound needle is used.

[0006]

In order to solve the above problems, in the compound needle of the present invention, the proximal end portion of the elastic guide piece for transferring to the needle body is fixed and the needle groove bottom portion of the needle body is fixed. The slider, which is slidably assembled in the groove formed to the vicinity of the sliding surface of the slider, moves back and forth in the relative motion relationship with the needle body, and the tongue of the slider appears and disappears from the needle body, In a compound needle for a knitting machine in which a hook is opened and closed, an inclined surface for guiding a knitting needle on a stitch receiving side is formed in a needle body and a slider.

[0007]

In the compound needle having the above construction, when the needle on the stitch passing side is guided to the passing position, the elastic guide piece for transferring the stitch in the area for guiding the hook of the needle on the receiving side is fixed. The slope formed on the needle body and the slope formed on the slider cooperate to form a notched slope that guides the hook of the receiving needle. First, the slanted surface of the slider guides the slanted surface of the needle main body, and further, it is surely guided to a gap formed by the elastic guide piece for transfer and the needle main body to receive the stitch.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment showing 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 body 2 is provided with a hook 5 at the head,
A needle jack 4 is engaged near the opposite end. An elastic guide piece 6 for transfer is fixed to a side portion of the needle body 2. A slider groove 8 for inserting the slider 3 is cut off at the upper edge 7 of the needle body 2. The slider groove 8 has a deep groove portion 9 in the vicinity of the leading portion and a shallow groove portion 10 in other portions along the shape of the slider 3 described later. The deep groove portion 9 is located at the throat portion 11 of the needle body 2, and the deepest portion of the groove is the cam surface 12
And the position near the hook 5 on the cam surface 12 is shallow,
The position far from is deepened. Slider 3 is the top 13
When the slider 3 is inserted into the slider groove 8, when the slider 3 is inserted into the slider groove 8, the tongue 14 is provided in To fit.

A notch 16 for guiding the hook of the needle on the stitch receiving side to the stitch receiving position is formed on the needle body 2 side facing the vicinity of the tip of the elastic guide piece 6 for transferring stitches. In order to form the notch 16, only one side wall 17 of the needle body forming the slider groove 8 is cut out so as to have a slope 18 which is a guide surface of the hook on the receiving side which is expanded outward.

Also on the slider 3 side, in the mutual positional relationship between the needle body 2 and the slider 3 in the stitch passing state, that is, in the positional relationship in which the tongue 14 of the slider 3 is farthest from the hook 5, the above-mentioned needle body 2 is provided.
The inclined surface 19 which is a guide surface is formed by cutting out at least a part of the arc-shaped sliding surface 15 at a position substantially matching the inclined surface 18 formed on the
The inclined surfaces 18 and 19 cooperate to form a guide surface for guiding the hook on the receiving side.

Next, the case of transferring using the compound needle 1 of the present invention will be described.

2, 3, and 5, the compound needle shown in FIG. 1 is advanced to the stitch passing position by the action of the cam of the carriage (not shown), and the slider 3 is moved.
The tongue 14 of FIG. 2 is shown at the farthest position from the hook 5. In this state, the inclined surfaces 18 and 19 formed on the needle body 2 and the slider 3 cooperate to form one guide surface, and the opposite needles face each other. When the needle for receiving the stitches advances from the bed, the hook of the needle first rises along the slope 19 of the slider 3 as shown in FIG. Then, after being guided to the sloped surface 18 of the needle body, it is securely inserted into the gap formed by the elastic guide piece 6 for transfer and the needle body 2 to receive the stitch.
When the hook 5 is guided along the sloped surface 19 of the slider 3, the upper edge 20 of the slider 3 is held in its position by the stopper 21 provided on the needle body 2, so that the sloped surface 19 of the slider 3 secures the hook 5. Can be guided to.

The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and the slider groove is formed up to the vicinity of the sliding surface of the needle groove with the bottom of the needle groove of the needle body. Of course, the present invention can be applied to a compound needle of a type in which a notch for guiding the hook of the receiving needle cannot be sufficiently formed in the needle main body such as a spatula needle. It goes without saying that the present invention can be carried out within a range not deviating from the gist of.

[0015]

As can be seen from the description of the above embodiment, in the compound needle of the present invention, when the needle on the stitch transfer side is guided to the transfer position, the transfer of the area for guiding the hook of the needle on the reception side is transferred. On the side of the needle body on which the elastic guide piece for fixing is fixed, and the slope formed on the slider cooperate to form a notched slope that guides the hook of the needle on the receiving side. When the needle advances, the hook of the needle is sequentially guided to the slant surface of the slider and the slant surface of the needle body, and is reliably guided to the gap formed by the elastic guide piece for transfer and the needle body. Such a problem is eliminated and the needle can be prevented from being damaged.

Further, even in a compound needle in which an opening is provided below the slider groove to prevent fiber dust such as cotton wool from accumulating in the slider groove, the problem that the hook enters the opening can be solved.

[Brief description of drawings]

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

FIG. 2 is an enlarged view of the leading portion of the compound needle in a state where it has advanced to the stitch passing position.

FIG. 3 is a view in which an elastic guide piece is removed from the compound needle shown in FIG.

FIG. 4 is a bottom view of the needle body.

5 is a cross-sectional view taken along line I-I in FIG.

6 is a cross-sectional view taken along the line II-II in FIG.

FIG. 7 is a cross-sectional view of a conventional compound needle corresponding to line II-II in FIG.

[Explanation of symbols]

 1 Compound needle 2,24 Needle body 3 Slider 4 Needle jack 5 Hook 6,23 Elastic guide piece 7 Upper edge of needle body 8 Slider groove 9 Deep groove part 10 Shallow groove part 11 Throat part 12 Cam surface 13 Lead part 14 Tongue 15 Arc shape Sliding edge 16,23 Notch 17 Needle body side wall 18,19 Slope 20 Slider upper edge 21 Stopper

Claims (1)

[Claims] 1. An elastic guide piece for transferring to a needle body is fixed to a base end portion thereof, and is slidably assembled in a groove formed up to near a sliding surface of a needle groove bottom portion of the needle body. In the compound needle for knitting machine of the type in which the slider is moved back and forth in the relative motion relationship with the needle body, and the tongue of the slider is retracted from the needle body to open and close the hook of the needle body, A compound needle for a knitting machine, wherein an inclined surface for guiding the hook of the needle on the stitch receiving side is formed.