JPS597817B2 - Ratsuchiboug - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to latch armor, including but not limited to:
In particular, it relates to a latch guard for use in circular knitting machines producing terry fabrics or fabrics with a terry loop pattern.

According to the present invention, first, a latch guard is provided that defines a pair of passages for guiding yarn to knitting needles of a knitting machine.
At least one of said passageways is defined by a groove in the latch armor, allowing thread to be introduced into or withdrawn from the groove and the latch armor.

The other passageway may be defined by an elongated passageway or a hole, but is preferably a separate groove.

Preferably, the two passages are defined by grooves in the latch guard and extend from between the two grooves rearwardly at the rear end of the latch guard, i.e. at the end opposite the front end where the yarn is fed to the needles of the knitting machine. A separation member is provided which extends to the knitting machine and which serves to guide the individual yarns from the yarn feeding mechanism of the knitting machine to the appropriate groove.

Preferably, the separating member is in the form of a hook extending longitudinally rearwardly from the groove, and the ends of the member are sloped upwardly so as to be located between the individual thread-feeding members of the thread-feeding mechanism.

The latch protector has a pair of latch protection surfaces that are angled with respect to each other, and a pair of grooves are formed in one of the surfaces;
The first groove extends into the other surface, and the second groove branches laterally from the first groove and optionally also extends vertically at a distance.

The position of the second groove may be within the other surface, but is preferably located on another surface between the two surfaces.

The second groove can thus feed the yarn without being engaged by the set of knitting needles.

This set of knitting needles is arranged at right angles to the other set of knitting needles, which cannot be fed yarn from the second groove.

The first groove can supply yarn to both sets of knitting needles.

Such a groove arrangement can be used, for example, in knitting terry fabrics as described below with reference to the accompanying drawings.

These grooves can supply yarn to or withdraw yarn from the latch armor and hold the yarn in an inoperative position away from the knitting needles.

Advantageously, the latch guard comprises a pair of orthogonally arranged flat plate members defining said two latch protective surfaces or sides, and a block defining said two grooves, and The hook member projects from the rear surface of the block and extends into the space between the pair of plate members.

This latch guard can be used with a striper device having a thread feed member that can be moved in and out of the space.

The striper device may be equipped with a thread cutting and catching device located close to the block capable of acting on threads passing through either groove.

A suitable type of striper device is described in British Patent Specification No. 821.
It is described in No. 151.

The latch protector of the present invention can be used in a circular knitting machine having a cylinder and a dial, preferably in a knitting machine in which the cylinder and dial are fixed.

The present invention provides a plurality of garment fabric sections having terry loops made of terry yarn, leno yarn, and ground knitting yarn, and ribbed edge fabric sections that do not include leno yarn and are knitted alternately with these fabric sections. It makes it possible to make textiles consisting of.

The invention is particularly advantageous for application to textiles in which the ribbed structure is adjacent to each other, for example with a pair or three ribbed fabrics.

The present invention will be described in detail with reference to the accompanying drawings.

The latch guard 2 has one side 4 shaped to act as a latch guard for the second set of needles or cylinder needles 38 and at right angles thereto and acts as a latch guard for the first set of needles or dial needles 36. It has the other side 6.

The sides 4 and 6 include a vertical plate or flat member 8, a horizontal flat member or plate 10, and a block 12, here illustrated for convenience of explanation as being in front of the plates 8 and 10.
formed by.

On the rear side of the block 12, on the side of the plate 8 and above the plate 10, there is a recess 14 for receiving the thread feeding device of the striper device.

A groove 16 extending to the outlet 20 of the side part 4 is formed on the lower surface of the block 12, and the groove 16 gradually branches laterally toward the needles 36 and 38 as it goes forward.
An exit 20 that opens to the front of the block 12 above the exit 20
A further groove 18 is provided which extends up to .

Projecting from the rear of the block is a separation hook 24 extending horizontally rearward from between grooves 16 and 18 and then upwardly.

The hook 24 has a pointed end 28.

The latch guard 2 is removably fixed by means of a bracket 32 to a cam support in the form of a rotary dial plate 34 of a knitting machine.

The knitting machines 36, 38 are operated by cams carried on the dial plate 34.

Latch armor 2 is used in conjunction with a striper device.

Here, only the device cooperating with the latch armor 2 is shown as a striper device.

That is, the striper device has four yarn feed tubes 40,
The tubes can be moved between an active position in the recess 14 (shown in solid lines) and an inactive position below the sides of the latch guard 2 (shown in dotted lines).

The yarn is guided either from the feed tube 40 into the grooves 16 and 18 or to a yarn catcher 44 equipped with a cutter located near the block 12.

The fabric with terry loops is knitted as follows (see Figures 1 and 2).

The two thread feed tubes 40 are placed in their respective operating positions.

That is, the first yarn feeding tube 40 (the left yarn feeding tube in FIG. 2) is placed above the hook 24, and the second yarn feeding tube 40 is placed behind the hook 24.

The thin leno yarn LY is fed through the first yarn feed tube 40 to the groove 18 in front of the hook 24.

The thick fabric thread TY is supplied to the groove 16 through the second feed pipe 40.

Dial needles 36 capture the fabric yarn TY, and likewise certain selected cylinder needles 38 capture the fabric yarn TY.

On the other hand, the leno thread LY is supported under tension and passes without being engaged by the latch of the cylinder needle 38, which closes after capturing the terry thread TY.

Therefore, the thread LY is captured only by the dial needle 36.

The knock-over (lowering) of the dial needle 36 is delayed after the knock-over of the cylinder needle 38, thus allowing the thread LY to pass through the cylinder needle 38 without touching it.

Of the cylinder needles 38, the cylinder needles that do not form a terry loop are not raised to the height necessary to capture the thread TY.

In the next station, in the so-called double-bed fabric knitting process, the knitting yarn is fed to all non-uniform terry cylinder needles and to all dial needles.

In the single-bed terry knitting method, the fabric yarn is knitted only with dial needles.

Following the knitting of the knitted fabric yarn, the same selection of cylinder needles as was carried out in the latch armor 2 is repeated.

The dial needles 36 remain at the inactive height while the selected cylinder needles 38 are pushed aside to release the TY loops, which are then freed by either of the woven structures formed on the dial needles 36. Only held on the side.

Next, the ribbed fabric not containing yarn LY is knitted without interruption as follows.

That is, the first (left) yarn feed tube 40 is retracted to the inoperative position (the position shown in dotted lines in FIG. 2).

The thread LT is thus pulled out of the groove 18, captured by the device 44 and cut.

The dial needle and cylinder needle are equipped with a high butt needle and a low butt needle, and the high butt needle has a suitable ridge pattern (IXI, 2
X2, etc.).

The knitting then proceeds only on the high batt needles, and the low batt needles remain at their inactive height.

This is how ribbed fabrics are made. Complete the ridge,
After adding the hemline and pulling the thread, knitting of the patterned terry loop fabric may be continued.

For this purpose, the first yarn feed tube 40 is returned to its working position.

When the yarn is lifted up by the raising of the working position of the first yarn feed tube 40, it is guided by the hook 24 into the groove 18 and
It doesn't fit in.

Yarn placement device associated with the first yarn feed tube (not shown)
advances to place the thread across and between the dial needles 36.

In this way, the thread LY is re-engaged by the needle 36,
You can start knitting terry cloth.

Equipped with the latch guard of the present invention, the thread LY can be fed through a standard striper device, cut and captured using a mechanism provided on the striper device, and the thread LY can be moved into the working position or out of position. It can be selectively moved to an operative position.

Moreover, the thread LY is fed in a reliable manner at a different angle and position than the thread TY.

Misplacement of the thread in the groove or interlacing of the two threads is prevented by the hook 24 extending upwardly to a position between the first thread feed tube 40 and the second thread feed tube 40.

Further, by catching and cutting the yarn LY, it is possible to knit a ribbed hemline that does not include a leno yarn.

If the thread LY remains held (e.g. from a feeding mechanism added to the striper device)
is fed and without a separate cutting and capture mechanism) it is not possible to prevent the yarn LY from continuing to the ridge edge, thus resulting in the formation of an inferior quality ridge edge.

If it is desired to knit a fabric without terry loops, the latch armor 2 of the invention may be replaced by a latch armor without hooks 24 and additional grooves 18, and the selection of different yarns can be carried out in the usual manner with a striper device. You can make it happen.

[Brief explanation of drawings]

FIG. 1 is a partial perspective view of the latch armor according to the present invention showing the process of knitting the terry yarn and leno yarn, FIG. 2 is the latch armor of FIG.
FIG. 4 is a bottom view of the latch protector shown in the figure, and FIG. 4 is a front view of FIG. 1. In these figures, 2 is a latch guard, 4 is one side of the latch guard, 6 is the other side, 8 is a flat plate member, 10 is a horizontal flat plate, 12 is a block, 14 is a recess, 16 18 is a groove, 20 is an outlet, 22 is an outlet, 24 is a hook, 28 is a tip, 32 is a bracket, 34 is a rotating dial, 36 is a dial needle, 38 is a cylinder needle, 40 is a thread feed tube, 44 is a Yarn catching device.

Claims (1)

[Scope of Claims] 1. A latch protector for use in a circular knitting machine, which is fixed to a cam support 34 and includes a pair of feeding members 40 of a yarn feeding mechanism to a first set and a second set of the knitting machine. The needles 36, 36 are angled relative to each other in the same plane to guide the yarn forward to the cam actuated knitting needles 36, 38.
. The yarn feeding member 40 is inserted between the pair of grooves at the rear end of the attachment member 12 so as to be guided into the groove.
a separation hook 24 that protrudes rearward toward the mounting member;
a first latch guard extending from near the rear end of the pair of grooves to at least the pair of yarn feeding members in a plane substantially coplanar with the plane of the pair of grooves; a second latch-protecting flat member 8 extending substantially perpendicularly to the first latch-protecting flat member 10 to serve as a latch protector for the second set of knitting needles 38; Becomes,
A latch protector characterized in that the pair of grooves 16 and 18 are housed within the first latch protective flat member 10 so as to enable the pair of thread feeding members 40 to be retracted to the inoperative position. .