DE501494C - Lock for flat knitting machines - Google Patents

Description

Lock for flat knitting machines The invention relates to a lock for flat knitting machines, which enables original patterned knitting at will and perform sample work on the machine.

There are locks known that solve the same task. With these With locks, the countersink is divided into a fixed and a rotatable part. The rotatable part rests under spring pressure on the fixed part and on the outside The needle countersink assembled in this way has a catch slot; no. in the purpose Creation of pattern work raised needles run in between the fixed and the get rotatable lock part and both parts against the pressure of those holding them together Spread the spring apart so that the noses of the raised needles are in the ordinary Enter the lock canal and return to the starting position through the lock can.

Such locks were already used to reduce and expand the needles lifted out of the area of action of the lock back into the area of action attributed to the castle. With this work it is sufficient, if necessary, to use the movable ones To press the lock part under spring pressure against the fixed lock part and the needle nose If necessary, leave the moving lock part to be pressed, because the needle noses only relatively seldom between those compressed by the spring Lock parts have to go through. For pattern work, however, the needle noses must pass continuously between the lock parts compressed under spring pressure and the lock parts have to keep spreading apart the spring pressure. As a result, there is a risk of the needles getting stuck and, apart from der Schloßab: use, be bent and otherwise the work process is disturbed.

The lock according to the invention is characterized in that the two items formed from a fixed and rotatable part of the Na @ delseak! Ers from the position for original sample work so adjusted to each other can be that their opposing edges have a constantly open Form guide channel through which the needles for pattern work in the upper part of the ordinary guide channel can occur.

According to the invention, the lock part is rotatable by a spring in the Preserved position for pattern work in which the guide channel for the needles is open is while held by a blinker in the position for patterned work becomes, with the two individual parts to the shape of an ordinary, one-piece Add needle countersink. The two needle countersink parts are in themselves for the common ones one-piece countersink in a known manner on the lock plate.

According to the invention, the two needle parts are shared by one Slider held; that moves both at the same time.

Other features of the invention will appear from the following description.

The drawings show exemplary embodiments of the subject matter of the invention shown. Fig. I shows a diagrammatic representation of the device.

Fig.2 shows a front view of the carriage, partly in section.

Fig. 3 shows a diagrammatic representation of the machine's carriage with the device according to the invention.

Fig. 4 shows a normal lock design, an ordinary one Machine.

Fig.5 shows one shape. the lock training according to the invention in, the position for signed work.

Fig. 6 shows the same shape in the position for pattern work.

Fig. 7 shows a second form of the lock according to the invention in fig the setting for patterned work.

Fig.8 shows the shape according to Fig.7 in the setting for pattern work.

Fig.9 shows the needle guide with a normal lock design.

Fig.io shows the needle guide in the first form of the lock in the setting for patterned work.

Fig. I i shows the needle guide in the first form of the lock in the setting for pattern work, being a part. the needles is lifted and a. Part sch iui of the rest position is located.

On the lock plate marked with i (Fig. 4), in the well-known Way the windows 2 are cut out, the lock parts 3, 4, 5, 6 and 7 are attached, wherein the needles are captured by the lock parts 3 protruding below and Ei the high position to be brought.

In the device according to the invention (Fig. 5), the lock parts remain 4 and 7 and the upper middle triangle 5 unchanged, while the countersink 6 removed and replaced by the parts according to the invention. These consist of a fixed Schloßtei.l 16, which takes the place of the upper part of the plate i occupies and is provided with an arm 17, one rotatably mounted on the arm 17 Pawl 18, de by a resilient, knurled knob i9 with a ratchet 2o (Fig. I), which engages in one of the two holes 201, 20 °, held in their positions becomes, and from a second resiliently rotatable lock part121.

In the position shown in Fig. I and 5, the rotatable lock part 2i locked by the pawl 18 and complemented together with the part 16 and the pawl 18 for the shape of the usual one-piece countersink 6.

The device described can be attached to the slide, without having to be released from the machine. Suffice it to use the sled to lead to the end of the stroke and remove the normal lock part6, whereupon the new Parts izi dien guide slot 13 can be used.

To replace the usual one-pound countersink 6 against. the parts 16, 1 8; 2 i a sliding piece 2 2 (Fig. I) is provided which fits into the slot 13 for moving the countersink 6 (Fig. 4). In this slot, the slide with the parts forming the lock according to the invention is held by a bolt 24 connected to a nut 23 (Fig. 2). The nut 23 cooperates with a sleeve 26 which is supported on the carriage 25 carrying the lock plate i. A spring 27 is supported on the one hand on the nut 23 and on the other hand on the bottom of the sleeve 26 and thereby holds the bolt 24, which is connected to the nut and supports the slider 22, in the slot 13. By means of an inserted into the nut 23. Pin 28 eats the nut connected to sleeve 26 for rotation. The pin engages in diametrically opposite slots 28 ′ in the sleeve 26. If the nut 23 on the bolt 24 is loosened, the bearing 22 can slide in the slot 13. When the nut 23 is removed, either the usual single-paste countersink 6 or the parts 16 to 21 can be easily removed.

The operation of the device described is as follows: In the position shown in Fig. 5, the pawl 18 presses the lock part 21 against the fixed lock part 16 , whereby, as usual, the channel 9 and a profile is formed as in a conventional one-piece countersink. In the position according to Fig.6, the pawl 18 rests on the arm 17 of the fixed lock part 16, wherein; the rotatable Schloßtei1.21 lies against your middle lock part 33, 4 under the action of its spring. This creates a new channel 9, 29 through which the needles raised with the aid of a tool or by hand: are grasped and used for work.

In Figs. 7 and 8 there is a second form of lock according to the invention shown, which while maintaining the main features of the castle, in particular the middle. upper triangle 5, requires a small modification to the slide, and although the attachment of two bores, a pawl i i and a rotatable curve piece 15 'to be able to arrange. According to this amendment, at; of the lock parts 4 and 7 remain unchanged, the usual one-piece countersink 6 is replaced by the piece 15 'and a piece 8 replaced on which -the upper piece of the one-piece countersink 6 is missing so that the point 8 'lower than the highest reachable by the needles Position comes to rest. The triangle 5 (Fig. ¢ bis 6) is divided by a half triangle 5 and a pawl i i replaced, whose pin reaching through the slide 12 is provided with a return spring and a standing handle.

In the position shown in Figure 7 is the profile of the channel 9 is the same as that of Fig. 4 and the piece 15 'folded down so that the machine carries out unpatterned work when the lock parts 3 protrude, or when the Lock parts 3 are withdrawn, the needles are returned to the rest position or remain in it.

If patterned goods are to be produced with the help of this second form, so the piece 15 'is folded up and the piece 8 in the slot 13 for so long guided down until the pawl i i snaps into the position illustrated in Fig. 8. Then the piece 8 is brought back to the beginning sstellwrig. The ones in your window 2 lying lock parts 3 remain in the retracted position, so that all are in the rest position sensible needles not: are grasped while all needles that are higher than that Tip 8 'of the piece 8, slide on this and enter the channel, after which they are returned to the rest position.

Claims (6)

PATE.NI # TA.NTSPRÜCHR: i. Lock for flat knitting machines with one fixed and own rotatable individual part formed countersink, characterized in, that the two items (16, 21 and 8, 11) of the countersink from the position for unpatterned work can be adjusted to each other so that theirs opposite edges form a continuously open guide channel (29) through the needles for pattern work in the upper part of the usual guide channel (9) can occur. 2. Lock nasch claim i, characterized in that the rotatable lock part (21) is obtained by a spring in the position for pattern work in which the channel (29) is open while it is in the position by a pawl (i 8) is held for patterned work, the countersink parts (16, a 1) and the pawl (18) complement each other to form an ordinary one-piece countersink (6). 3. Lock according to claim i and 2, characterized in that the needles. core parts (16, 21, 18) by means of a common sliding piece that carries them (22) on the lock plate (i) in a known manner in the direction of the descending Branches of the guide channel (9) are displaceable. 4. Lock according to claim i to 3, characterized in that the lower needle countersink part (8) is displaceable but non-rotatable is arranged and the upper needle countersink part (i i) consists of a pawl which capable of patterned work through the lower countersink part. locked while in the position for pattern work it can be unfolded so that them between. and the needle countersink part (8) the open insertion channel for releases the needle feet. 5. Lock according to claim 4, characterized by a hinged one Curved piece (15 ') which can be rotated next to the countersink part (8) that there is a curve to be introduced randomly together with this when the work is patterned raised needles in the rest position. 6. Lock according to claim i to 5, characterized characterized in that the countersink parts (16, 21, 18 or 8) in the slot (13) of the lock plate (i) for holding the ordinary one-piece countersink (6) by means of a flexible (spring 27) clamping piece (23, 26) are held on the lock plate (i).