JPH0261144A - Knitting needle for knit fabric - Google Patents

Abstract

PURPOSE:To obtain the title knitting needle capable of quickly opening and closing a hook with small stroke with little generation of fluffs or yarn breakage by holding a opening/closing device within a guide gutter provided in the longer direction of the needle backbone so as to enable reciprocative sliding in a loop mode. CONSTITUTION:An opening/closing device (shuttle) 4 is provided with one end 4a along a hook 1 and the other end 4b capable of hooking a loop R. A gutter- or hole-like guide part 6 is also provided along a guide gutter 3 provided in the longer direction of a needle backbone 2 and a rivet 7 fitted on the sidewall of the guide gutter is inserted into the guide part 6 and the shuttle is held within the guide gutter so as to enable reciprocative sliding in a loop mode.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an improvement in stockinette knitting needles equipped with a hook needle and an opening/closing element (hereinafter referred to as shuttle) for opening and closing the hooks of the hook needle. .

[Conventional technology]

Hitherto, stockinette knitting needles that form stitches in knitting machines have been known as launch needles, whisker needles, slide needles, and compound needles.Among them, a latch is swingably attached to a vertical groove formed in the needle stem with a rivet. In order to eliminate the drawbacks of latch needles or whisker needles, which open and close the hook with a latch that rotates around the rivet, a slide that moves toward and away from the hook using a special cam with an opener provided in a guide groove so that it can freely reciprocate. Needles and compound needles began to be used.

[Problem to be solved by the invention]

With this conventional launch needle, the movement of the latch is in a circular arc, so the filament often breaks when the thread is caught between the thin edges.Moreover, when the needle is moved back and forth at high speed, the back and forth rotation of the latch causes severe tilting of the pivot point of the latch. Early damage or latch tip (
The spoon part) collides with the tip of the hook and the course, which often causes problems such as wear and tear on the hook, latch hole and rivet pin, and breakage of the latch.When the loop crosses the latch, there is a lot of resistance in the front and back of the loop due to non-forever clearing. The stretched stitches not only make the stitches unstable, but also tend to cause fuzzing and thread breakage.Furthermore, if a hole is provided in the needle stem to remove fluff, the strength of the needle stem becomes insufficient, and latch production is complicated and reduces productivity. However, it had the disadvantage of being relatively expensive.

In order to solve these drawbacks, slide needles and compound needles, in which the slide piece that opens and closes the hook moves back and forth in a straight line, can open and close the hook with a small stroke and have a better stitch formation function than latch needles, but the stitch formation High precision is required in the shape of the slider to ensure smooth operation, and because the slide piece is only inserted into the guide groove when it is assembled into the needle stem, it is easy to separate (or pop out). This tends to cause trouble and instability of the slide, resulting in problems and making handling more complicated.

The present invention eliminates the conventional drawbacks, especially the problems of latch needles, and provides a good stitch forming function by opening and closing the opening/closing element in a slide needle using a loop, and knits with less reciprocating movement within the needle groove. The object of the present invention is to provide stockinette knitting needles that have significantly improved efficiency and high durability, and are simple in structure, easy to manufacture, and inexpensive.

[Means to solve the problem]

The present invention provides a stockinette knitting needle equipped with a hook at the tip and a guide groove in the longitudinal direction of the needle shaft, and an opening/closing element that is slidably inserted into the guide groove and opens and closes the hook opening of the hook. In the above, the opening/closing element is formed with one end along the hook and the other end on which the loop can be hooked, and a hole-shaped or groove-shaped guide part is provided along the guide groove, and the support is fitted into the guide part. This stockinette knitting needle is characterized in that a rivet is provided on the groove side wall of the guide groove, and the opening/closing element is held in the guide groove so as to be slidable back and forth in a loop.

[For production]

In the process of forming the loop R in the stockinette knitting needle of the present invention, when the needle stem 2 moves backward on the needle bed S while hooking the loop with the hook 1 (FIG. 5 (1)), the loop hanging on the shuttle 4 is R slips out and forms a loop (Fig. 5 (2)), but when it retreats further, the loop R1 hanging on the hook 1 is left behind and the loop R1 is maintained without slipping out from the opening closed by one end 4a of the shuttle 4. 5 (31), when the needle stem 2 moves forward, the new loop R1 is pulled by the loop R, and the shuttle 4 is moved into the guide part 6 through the rivet 77 and moved to the guide groove 3, and the loop R1 will be transferred to the oblique side of the groove side wall (front throat part on the upper side of the needle stem) (Fig. 5+41)
+51). When the needle stem 2 moves further forward, the shuttle 4 is completely retracted into the guide groove 3, and with the hook open, the loop R+ is guided by sliding on the upper side of the shuttle 4, and the shuttle 4 is brought to the end of the guide part 6 by the rivet 7. Since the loop R1 is locked and stopped, the loop R1 is pushed up to the upper side of the shuttle 4 (Figure 5 (al) - Next, with the hook 1 open, the needle stem 2 continues to move forward' and the shuttle Immediately, the loop R1 reaches the other end 4b of the shuttle 4, and the loop R1 smoothly transfers to the upper side of the needle stem 2 without expanding the loop (see Fig. 5 (7)). )), and is further guided to the back of the needle stem 2 (Fig. 5 +
81), when the needle stem 2 is retracted and closed, the loop R1
is attached to the other end 4b of the shuttle 4 (FIG. 5 (9)) to hold the shuttle 4, and only the needle stem 2 moves, leaving the shuttle 4, that is, the rivet 7 moves into the guide part 6. As a result, one end 4a of the shuttle 4 approaches the hook l in sequence (see Figure 5 (11(1)).
11).

Then, when the rivet 7 hits the edge of the guide part 6, the shuttle 4 closes the hook l (Fig. 5 @), and the loop R1 is slid onto the upper side of the shuttle 4 by the backward movement of the needle stem 2 and left behind. Figure 5 (l)), while hooking and pulling the thread on the hook 1, finally pull out the loop R+ from the tip of the hook 1 (Figure 5 (2)), repeating the above steps, and opening and closing the shuttle 4. is done in loop R1 to efficiently form a stitch (in particular, shuttle 4 is continuous with hook 1 when closed, so the yarn is not caught and prevents yarn fuzzing and yarn breakage, and furthermore, the loop is connected to hook 1 and the shuttle 4 and does not fall into the hook l, there is little resistance at the front and back, and the loop does not stretch and the stitch formation is good.
Since no great burden is placed on the needles, sufficiently stable knitting work is possible even at high speeds.

〔Example〕

Embodiments of the present invention will be described with reference to FIGS. 1 to 5.
A hook needle having a hook 1 at the tip and a guide groove 3 in the longitudinal direction on the needle stem 2, and a shuttle 4 as an opening/closing element that is slidably inserted into the guide groove 3 and opens and closes the hook opening of the hook 1. When making a stockinette knitting needle with A thank-you letter guide part 6 is provided, and a supporting rivet 7 that is inserted into the guide part 6 is provided on the groove side walls 3a+3b of the guide groove 3, and the shuttle 4 is held in the guide groove 3 so as to be able to reciprocate in a loop R. This is a stockinette knitting needle.

In this case, the shuttle 4 is fitted into the guide groove 3 and is pushed by the loop R to move back and forth to open and close the hook 1. It is supported by the needle stem 2 at the door.

This shuttle 4 is formed with an elongated guide portion 6 to guide the groove side wall 3a of the needle stem 2.

3b, both ends 4 of the shuttle 4 are attached so that there is no risk of a transfer error or thread breakage when the loop R transfers from the shuttle 4 to the hook 1.
In addition to the shapes of a and 4b, the hook tip shape is also taken into consideration.

Both ends 4a of the shuttle 4 are arranged so that the shuttle 4 closes completely when closing the hook 1, and so that the shuttle 4 can be easily moved back and forth using the loop R.

The shape of the shuttle 4 including 4b can also be made as shown in the examples in FIGS. 6 and 7.

Further, as the guide part 6, the needle stem 2 as shown in the example in FIG.
A concave groove 6. is formed as a guide portion 6 on the inner surface of the guide groove 3. Set the stroke length of the shuttle 4 from the opposite surface of the hook 10, and insert the shuttle 4 into the groove side wall 3a with the shuttle 4 sandwiched in this concave groove 61.
, an extrusion pin 71 that protrudes from the outside of 3b inward by pressing.
The shuttle 4 may be slidably incorporated into the guide groove 3 of the needle stem 2 by fitting the shuttle 4 into the guide groove 3 of the needle stem 2, or as shown in the example in FIG.
Guide portions 6 are provided on both groove side walls 3a and 3b of the guide groove 3 formed in the
A slit-shaped opening 6 □ is provided as a slit-shaped opening 6 □.
Supporting pins 78 that are fitted into the pins f are provided to protrude from both sides of the shuttle 4, and the shuttle 4 is incorporated into the guide groove 3 of the needle stem 2 so as to be movable back and forth, and the shuttle 4 is inserted from the guide groove 3 into the guide groove 3 of the needle stem 2.
It may also be possible to prevent it from popping out.

The shuttle 4 has a longitudinally elongated rectangular cross-section, and its back surface has a dimension that is higher than, equal to, or in the vicinity of the maximum height (vertical dimension) of the groove side walls 3a, 3b, that is, the throat portion 21. However, it is recommended that at least the upper side be formed into a curved surface or a straight surface (if necessary, one end 4a side of the shuttle 4 may be curved or inclined to form a continuous surface that cannot be caught by the hook l). For example, the shuttle 4 of the opening/closing element that slides back and forth in the guide groove 3 formed in the needle stem 2 is provided with a guide part 6 of a long hole along the sliding direction, and a hook is used. One end of the side is a vertical plane, connected to the upper edge surface via a rounded and/or sloped surface without corners, the upper edge surface is higher than the height of the throat part 2 of the needle stem 2, and the other end is a vertical plane. It is also effective to provide a closure for stockinette knitting needles with a bare loop surface, for example a notch, a concave surface or a stepped surface.

The one end 4a may not come into contact with the tip of the hook 1, but may be stopped at a position as close as possible to the tip of the hook 1. However, a concave portion or the like may be formed at the hook tip and the end or the shuttle one end 4a, or the hook It may be shaped like a shuttle so that it overlaps the top, so that even if it overlaps the hook 1 to some extent, it forms a continuous surface. The other end 4b of the shuttle 4 is curved in a streamlined shape so that the shuttle 4 can act on the hook 1 in the closing direction by pulling the loop R, and can also smoothly remove the loop. A concave surface may also be formed. In any case, the bottom surface of the shuttle 4 has a linear bottom surface that slides on the bottom surface of the guide groove 3 of the needle stem 2, so that the shuttle 4 can smoothly open and close the hook 1. In addition, the shuttle 4 has a front end 4a that is gently inclined and runs parallel to the bending hook 1 in order to facilitate the removal of stitches, and the lower part of the tip of the shuttle 4 is connected to the hook 1. It may also be configured to fit into and come into contact with a recess formed in the upper part of the tip and be locked in an overlapping state.

In the example of FIGS. 10 and 11, the hook 1 and one end 4 of the shuttle 4
In one example, the hook 1 has a recess 1 at the tip of the hook 1 and a chamfered part 5 that fits into the recess II. A chamfered portion 5 is provided on the shuttle 4 side, and the hook tip fits only on the shuttle end 4a side if necessary.
may be provided.

〔Effect of the invention〕

In the present invention, the opening/closing element is formed with one end along the hook and the other end on which the loop can be hooked, and a hole-shaped or groove-shaped guide part is provided along the inner groove, and the opening/closer is fitted into the guide part. A support glue bed to be inserted is provided on the groove side wall of the guide groove, and the switch is held in a loop in the guide groove so that it can slide back and forth.
The hook can be opened and closed at high speed with a small stroke, and the stitch forming function is good. Furthermore, since the closure element is pressed by the loop, it is possible to accurately prevent the loop from getting caught between the hook and the closure element, and the stitch formation is also good. It is stabilized, there is no wind lint, and it does not put a big burden on the needle, making it suitable for high-speed operation.The hook opener is properly held on the needle stem, so there is no accident of popping out or any trouble in handling. In addition, problems such as hook breakage, groove cracking, hook wear, and breakage of the switch due to the switch colliding with the hook tip and course are eliminated, and even when the loop crosses the switch, there is less resistance in the front and back, and the loop is not stretched. In addition to stabilizing the stitches, it also reduces the occurrence of fuzz and yarn breakage, making it possible to knit products with high commercial value, greatly improving knitting efficiency, and eliminating the need for a cam or bundt part to operate the opening/closing element. Therefore, the stockinette knitting needle has a simple structure, is easy to manufacture, can be manufactured at low cost with increased productivity, and can perform stable and reliable knitting operations.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partial side view;
Fig. 2 is a side view of the shuttle section, Fig. 3 is a vertical sectional view taken along the line 1-1 in Fig. 1, Fig. 4 is a partially cutaway oblique view showing the separated state, and Fig. 5 ill to J are in the operating state. Explanatory side view, 6th
The figure is a side view of a part of another embodiment, FIG. 7 is a side view of its shuttle part, and FIGS. 8 and 9 are partially cutaway slope views showing a separated state of still another embodiment. FIG. 10 is a perspective view of another embodiment, and FIG. 11 is a plan view thereof. l...Hook, 2...Needle stem, 2. ...Throat part, 3...Guide groove, 3a, 3b...Groove side wall, 4...
shuttle,. 5... Chamfer part, 6... Guide part, 7... Rehesoto,
71...Extrusion pin, R, R,...Loop, S...
needle bed.

Claims (4)

[Claims] (1) A stockinette knitting needle equipped with a hook having a hook at the tip and a guide groove in the longitudinal direction of the needle shaft, and an opening/closing element that is slidably inserted into the guide groove and opens and closes the hook portion of the hook. , the opening/closing element is formed with one end along the hook and the other end on which the loop can be hooked, and a hole-shaped or groove-shaped guide part is provided along the guide groove, and the support is fitted into the guide part. A stockinette knitting needle characterized in that a rivet is provided on the groove side wall of the guide groove, and the opening/closing element is held in the guide groove so as to be slidable back and forth in a loop. (2) The guide part of the concave groove is provided on the needle stem from the opposite surface facing the hook to the stroke length of the opening/closing element, and a press extrusion pin is provided that protrudes inward from the outside of the groove side wall while holding the opening/closing element between them. A stockinette knitting needle characterized by comprising a rivet and inserted into the guide part of the shuttle. (3) A knitted fabric characterized by having slit-shaped openings on both groove side walls of the guide groove formed in the needle stem, and a supporting pin that is fitted into the slit-shaped openings and protrudes from both sides of the switch. knitting needles (4) An opening/closing element that slides back and forth in a guide groove formed on the needle stem,
It has a long hole along the sliding direction, and one end on the hook side is a vertical plane, and it is connected to the upper edge surface through a rounded part without corners, and the upper edge surface is higher than the height of the throat part of the needle stem. And,
A closure for stockinette knitting needles with a loop-retaining support surface formed on the other end.