JPS6034073Y2 - Carriage for hand knitting machine - Google Patents

Description

[Detailed description of the invention] The present invention is a carriage for a hand knitting machine, in particular, a needle selection device is provided on both sides of the carriage base plate, and a needle selection cam is provided on the outer side of the carriage, and a needle selection cam is provided on the outer side of the carriage, and a knitting needle butt is arranged to act on the needle selection device. A carriage cam plate, which is pivotably supported to be freely displaceable between a needle selection action position where the needle is introduced and a needle selection non-action position where the needle is introduced without acting, and on which various cams such as a knitting cam are mounted, is mounted on the carriage base plate. The present invention relates to a carriage for a hand knitting machine which is pivotally supported to be freely displaceable between a knitting action position where a cam acts on the knitting needle butt and a knitting non-action position where the cam does not act on the knitting needle butt.

Conventionally, when knitting patterns such as knitting using the above-mentioned carriage, the needle handling cam is moved to the operating position, the knitting needle butt is made to act on the needle selection device, and the knitting needle butt is moved back and forth in accordance with the required needle selection signal. Although needles are selected in the second position, the carriage may become unable to slide for some reason, such as when the desired knitting cannot be performed due to poor needle selection or the like, so one stitch is knitted back, or for some other reason.

In this case, a so-called empty running operation is performed in which the carriage cam plate is displaced to the knitting inactive position and slid to the desired position, but at this time, the needle handling cam 1 is in the needle selection active position as shown in Fig. 1. Therefore, for example, the knitting needle butts 2 aligned at the knitting standby position are sorted into two positions, front and rear, by the needle selection device 3.

Therefore, it is necessary to carry out the labor-intensive work of returning the knitting needle bats that have been sorted forward to the knitting standby position each time before knitting is started again.

There was a drawback that the efficiency of organizing work was reduced.

However, if the needle sorting cam is manually moved and locked in the needle selection inactive position before the needle threading operation, and then released from the lock after the operation and returned to the needle selection action position, the above-mentioned problem can be achieved. Such inconveniences can be resolved.

However, it is time-consuming and troublesome to move the needle-handling cam to the non-selecting position and lock it, or to release the lock and return it to its original position, each time the needle selection operation is performed. However, if the knitting machine is re-knitted by mistake without returning the needle-handling cam to its original position, the knitting needle butts will not be selected by the needle selection device and the pattern will not be knitted.

Further, the above-mentioned inconvenience can be avoided by retracting the needle selection device to a position where it does not act on the knitting needle bat during the above-mentioned air passing operation, but the needle selection device and the device that gives the needle selection signal to it Since the mutual relationship with the needle and knitting needle bat is temporarily cut off, the memory of the needle selection signal is likely to be modulated, and if the pattern is re-knitted while being modulated, the pattern may be different. Furthermore, there are drawbacks such as requiring complicated and difficult operations to match the above-mentioned mutual relationships.

Therefore, the present invention has been proposed in order to eliminate the above-mentioned conventional drawbacks all at once.

In other words, it is possible to carry out the dry threading operation without manually displacing the needle sorting cam to the needle selection non-active position and returning it to the original position each time during the dry threading operation, or retracting the needle selection device to a position where it does not affect the knitting needle butt. By automatically displacing the needle sorting cam to the needle selection non-working position in conjunction with displacing the carriage cam plate to the knitting non-working position, unnecessary sorting of the knitting needle butts can be prevented, and the dry threading operation can be improved. By automatically returning the needle sorting cam to the needle selection action position in conjunction with returning the carriage cam plate to its original position afterwards, the knitting needle butt can be sorted according to a predetermined needle selection signal when knitting is restarted. The present invention aims to provide a carriage for knitting machines.

The illustrated embodiment will be described below.

A is a carriage base plate, which has a substantially horizontally long rectangular opening 4 in the center, and has needle selection devices 3, 3 on the left and right outer sides.
It is further provided with needle handling cams 1, 1 on the outside thereof.

The needle sorting cams 1, 1 have their base ends rotatably supported further outwardly than the needle selection devices 3, 3 at both ends of the lower surface of the carriage base plate a, and their free ends protrude outward from the carriage base plate a. I'm letting you do it,
A front introduction passage (i) for introducing the knitting needle butt 2 to act on the needle selection devices 3, 3 is provided between the opposing portion of the guide cams 5, 5 disposed opposite to each other in front thereof, or a knitting needle butt 2 is provided at the rear side for needle selection. Rear side introduction passage openings are respectively formed to introduce the devices 3 and 3 without acting on them.

Then, the needle selection operation position (dash line in Fig. 2, Fig. 3) always opens the front introduction passage A and closes the rear introduction passage opening.
However, against this bias, the front introduction passage A is closed and the rear introduction passage opening is opened. , 5).

The needle selection devices 3, 3 rotate as the carriage base plate a slides, and move the knitting needle butts 2 guided thereto by the needle handling cams 1, 1 in accordance with needle selection signals constituting a required unit pattern. This is a known method that mechanically sorts into two positions, front and rear.

7 is a cam (
Only one of them is shown in the figure), the knitting needle batts 2 which have been sorted forward and backward by the needle selection device 3°3 are further distributed and guided forward and backward.

Reference numeral 8 denotes a carriage cam plate on which various cams (not shown) such as a knitting cam are mounted symmetrically on the lower surface. A knitting operation position (Figs. 2 and 3) in which the cams are rotatably supported on support shafts 9, 9 installed on the base plate a, and the cams are exposed downward from the opening 4, and the knitting needle butt 2 is applied to the cams. , the front side can be slightly lifted to a knitting non-working position (FIG. 4) in which the knitting needle butt 2 does not act on the various cams, and is normally biased by a push-up spring 10 to move to the knitting non-working position.

Reference numeral 11 denotes an operation plate horizontally suspended above the front side of the carriage cam plate 8, which has a pair of elongated holes 12, 12 fitted into pins 13 and 13 formed on the carriage cam plate 8.
, 12 so as to be movable left and right (Fig. 2), and the slot 1 opened inside the long hole 12.
A pair of through holes 14.14 are arranged to face a pair of locking pins 15.15 formed in the carriage base plate a, and the carriage base plate a is always
Each through hole 14.14 is opened by a tension spring 16 stretched between
A groove 17 whose opening edge is formed in the head of the locking pin 15.15.
It is biased to engage with.

18 is the eldest child provided on the right front side of the operation panel 11 (FIG. 2).

Thus, the carriage cam plate 8 is assembled against the bias of the push-up spring 10 by engaging the opening edges of the respective through holes 14, 14 of the operation plate 11 with the grooves 17 of the respective locking pins 15. It can be locked in the operating position (FIGS. 2 and 3), and when the operation plate 11 is moved by the eldest child 18 against the tension spring 16 to release the engagement, the push-up spring 10 is released. It is set so that it is automatically displaced to a non-composing position (Fig. 4) depending on the force.

Reference numeral 19 denotes a cam operating body which is rotatably fitted to a column 20 established in the center of the carriage cam plate a.The rear semicircular part has continuous cam surfaces 21a and 21b, and the carriage cam A pair of operating arms 23.23 are rotatably supported on pins 22.22 established on the rear side of plate a and arranged in a figure eight shape.
The inner ends 23a, 23a of the cam surfaces 21a, 21b are brought into contact with either of the cam surfaces 21a, 21b.

The actuating arm 23.23 is connected to the needle handling cams 1, 1 via a continuous member 24.24 and a pushing member 25.25 arranged on the carriage base plate a.

That is, the connecting member 24 has an abbreviated bent portion rotatably supported on the carriage base plate a, and a tension spring 26 is provided between the free end of the long side portion 24a and the outer end 23b of the operating arm 23. The short side portion 24b has teeth 27 at its tip.

Further, the pushing member 25 has its base end rotatably supported on the carriage base plate a, teeth 28 formed on the base end mesh with the teeth 27 of the connecting member 24, and the carriage base plate a A pushing rod 29 protruding from the lower surface of the roadside projecting outwardly is engaged with the rear side of the roadside of the needle handling cam 1.

The operating arm 23.23 is always given a turning force by a spring (not shown) so as to press the inner end 23a against any of the cam surfaces 21a*21b. When knitting a pattern such as knitting, the inner end 23a is in a predetermined position (second chain line) in contact with the cam surface 21b,
The connecting member 24 and the pushing member 25 are also in predetermined positions (dashed line in the figure).
, the push rod 29 allows the needle sorting cam 1 to wait at the needle selection operation position, and the knitting needle butt 2 is guided to the needle selection device 3 by the needle sorting cam 1 in accordance with a required needle selection signal. The needles are selected and the desired pattern is knitted.

In addition, when knitting such as flat knitting without using the needle selection device 3, the cam operating body 19 is rotated in a predetermined direction, and the cam surface 21a is rotated.
When the inner end 23a of the actuating arm 23 is brought into contact with the
is rotated against the biasing force of the spring and displaced to a required position (solid line in Figure 2), and in conjunction with this, the connecting member 24 and pushing member 25 are also rotated and displaced in a prescribed direction (solid line in Figure 2). .

As a result, the needle sorting cam 1 is pushed by the push rod 29, rotates against the bias of the spring 6, and is displaced to the needle selection non-active position.
While maintained in this position, the knitting needle butt 2 is introduced without being affected by the needle selection device 3, and knitting such as flat knitting is performed.

Reference numerals 30 and 30 denote actuating members provided on the front left and right sides of the carriage cam plate 8, with inner ends fixed to the carriage cam plate 8 and outer ends facing the long side portion 24a of the connecting member 24.

31. 31 is the connecting member 24 on the carriage base plate a.
It is an actuating member provided between the long side parts 24a, 24a and the actuating member 30.30, which is an abbreviated-shaped support piece 32 established on the carriage base plate a, with a bent part attached by a pin 33. The front side part 31a is rotatably supported and faces above the activation member 30, and a tension spring 35 is stretched between the rear side part 31b and a pin 34 protruding from the central lower surface of the long side part 24a. It is connected to the connecting member 24 and is biased so as to press the tip of the front side portion 31a into contact with the activation member 30.

These starting members 30, 30 and operating members 31.
31, the carriage cam plate 8 is connected to the connecting member 24.24.
The carriage cam plate 8 is connected to the needle handling cams 1, 1 through push members 25 and 25, and when the carriage cam plate 8 moves upward under the bias of the spring 10 and is displaced to the knitting non-active position, the upward movement accompanies the movement. The activation member 30 moves upward, and the front part 31
The actuating member 31 that engages the tip of a rotates in a predetermined direction and pulls the tension spring 35.

As a result, the connecting member 24 and the pushing member 25 are connected to the actuating arm 23.
When the needle handling cam 1 rotates in a predetermined direction regardless of the
It is pushed by the push rod 29 and rotated against the bias of the spring 6, and is automatically displaced to the needle selection non-active position.

Further, when the carriage cam plate 8 is returned to the knitting operation position, the starting member 30 and the operating member 31 are also returned to their original positions, and thereby the connecting member 24 and the pushing member 25 are rotated in a predetermined direction, so that the needle handling cam 1 is rotated by the bias of the spring 6 and automatically returns to the knitting operation position.

Therefore, in knitting patterns such as knitting using the needle selection device 3, when the cam operating member 19 is set at a predetermined position, the operating arm 23, the connecting member 24, and the pushing member 25 are set at the predetermined positions. The needle handling cam 1 is in the needle selection operation position (FIGS. 2 and 3), and the knitting needle butt 2 is guided by the needle selection device 3 and selected according to the required needle selection signal, and the desired pattern is knitted. During this process, when performing a so-called dry run operation due to poor needle selection or the carriage not being able to slide, first move the operating plate 11 using the eldest child 18 against the bias of the spring 16 to select the carriage cam plate 8. Displace the needle to the non-active position.

Along with this displacement of the carriage cam plate 8, the starting member 30
, the actuating member 31 is actuated, and thereby the connecting member 24 and the pushing member 25 are actuated independently of the cam operating member 19 and the actuating arm 23, and the needle sorting cam 1 is pushed by the pushing rod 29 and selected. Automatically displaced to and maintained in a needle inactive position.

Then, when the carriage is slid in the required direction for air passing, as shown in FIG. Therefore, the needles are not selected to the front and rear two positions, but are led out to the knitting standby position again from the other rear passage opening.

When the carriage cam plate 8 is returned to the knitting operation position after the above-mentioned emptying operation is completed, the starting member 30, the operating member 31, the connecting member 24, and the pushing member 25 are activated, and the needle sorting cam 1 is activated. After automatically returning to the needle working position, the knitting needle butt 2 is guided by the needle handling cam 1 to the needle selection device 3 by the sliding movement of the carriage to select the needles and knit a pattern.

Further, the operating arm 23 and the connecting member 24 are connected by a tension spring 26.
The tension springs 26 Since it is bent, the operation of the carriage cam plate 8, the connecting member 24, etc. is not hindered.

In addition, in the above embodiment, a case has been described in which a needle selection device that mechanically sorts knitting needle batts is provided, but this needle selection device may also be one that electrically sorts knitting needle batts by, for example, whether or not an electromagnet is excited. It's good.

As is clear from the above, according to the present invention,
In the middle of knitting a pattern such as knitting, when performing a so-called dry threading operation due to poor needle selection or the carriage being unable to slide, the carriage cam plate is displaced to the knitting non-active position, and the activation member and the operating The member is actuated, and the actuating member automatically displaces the needle picking cam to a needle picking inactive position by displacement of the carriage cam plate.

Therefore, when the carriage is slid in the required direction to perform the dry threading operation, the knitting needle butt is introduced by the displaced needle handling cam without being affected by the needle selection device, so the knitting needle butt is unnecessary during the dry threading operation. The needles are not sorted into two positions, the front and the back, by the needle selection action of the knitting cam.Therefore, there is no need for the troublesome operation of returning carelessly selected knitting needle butts to the knitting standby position one by one. Since the displacement to the needle selection non-active position is automatically performed in conjunction with the displacement of the carriage cam plate to the knitting non-active position, there is no burden on the knitting worker, and the efficiency of knitting work can be improved.

In addition, we have adopted a simple configuration in which an actuating member is activated by an actuating member provided on the carriage cam plate to displace the needle picking cam to a non-activating position for needle selection, so that, for example, the needle picking device can be attached to the knitting needle vat during the air threading operation. This is easier to design and manufacture than retracting to a position where needle selection does not occur, and since the mutual relationship between the needle selection device, the device that gives the needle selection signal to it, and the knitting needle bat is temporarily interrupted, the needle selection signal is not affected. It has the advantage that it does not have the disadvantage of being prone to modulation.

[Brief explanation of the drawing]

Figure 1 is a back view of a conventional carriage showing the state of so-called emptying operation, Figures 2 to 5 show an embodiment of the present invention, Figure 2 is a plan view, and Figure 3 shows a carriage cam plate. FIG. 4 is a perspective view of the main parts showing the state in which the carriage cam plate is locked in the knitting action position, FIG. FIG. 3 is a back view of the main parts of the carriage shown in FIG. a... Carriage base plate, 3, 3... Needle selection device, 1.1... Needle sorting cam, 8...
Carriage cam plate, 11... Operating member, 30...
... Starting member, 31... Actuation member.

Claims (1)

[Scope of utility model registration request] Needle selection devices are provided on both sides of the carriage base plate, and further outside the needle selection device, the knitting needle butt is displaced into a needle selection action position where it is introduced to act on the needle selection device and a needle selection non-action position where it is introduced without acting on the needle selection device. A carriage cam plate, which is equipped with a needle handling cam which is freely pivoted and is always biased to maintain the needle selection operating position, and which has various cams such as an eccentric cam mounted on the carriage base plate, is mounted on the carriage base plate. In a hand knitting machine carriage which is pivotally supported to be freely displaceable between a knitting action position where the knitting cam plate acts on the knitting needle butt and a knitting non-action position where the knitting cam plate does not act on the knitting needle butt, the carriage cam plate is always biased to be displaced to the knitting action position and the The carriage cam plate is provided with an operating member that locks the carriage cam plate in the knitting action position against the bias, and a starting member, and the carriage base plate is provided with an actuating member that engages with the starting member to prevent the carriage cam plate from forming. A carriage for a hand knitting machine, characterized in that an actuating member is provided to maintain the displacement of the needle sorting cam in a non-needling position as the needle sorting cam is displaced to the working position.