JPH0733618B2 - Needlebed for flat knitting machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a flat knitting machine characterized by supporting means for a selector used in a knitting machine.

[Prior Art] When selecting a knitting needle when knitting a knitted fabric, as shown in FIG. 4, an actuator 51, a selector 52, a select jack 5
3, jack 54, selector push-up cam 55, etc. are used,
The knitting needle is operated via the movement of the actuator 51. That is, in order to select a knitting needle according to a knitting structure, a pattern, etc., it is usually performed as follows. The selector 52 corresponding to a desired needle is selected by the operation of the actuator 51, and the selector 52 is raised by the selector push-up cam 55, thereby moving the select jack 53 to a predetermined position, and at that position, the select jack pressure cam. Push it down into the groove by 56. The select jack 53 is always urged by a U-shaped spring 64 in a direction in which the butt 63 is projected outside the needle groove 62. Above spring
Inserting 64 into the needle groove 62 requires that the wires 66 be inserted into the needle head 65 in a direction intersecting the needle groove while being locked to the wires 66 in the needle groove 62 one by one. Needed. By pushing down the select jack 53, the jack 54 is pushed down, the height of the jack butt 57 is changed, and the jack bat 57 is selected by the predetermined cam 58 accordingly, and the needle 59 integrated with the jack 54 is selected.

Since the selection of the selector 52 by the actuator 51 is performed during the high-speed knitting, the contact between the protrusion 60 of the actuator 51 and the bat 61 of the selector 52 is made in an extremely short time. . And
In the meantime, since the predetermined selector 52 has to be pushed into the needle groove 62, an extremely strong impact is applied between the protrusion 60 of the actuator and the butt 61 of the selector, and the selector 52 pushed into the needle groove has inertia. The force was exerted, and sometimes the reaction caused the needle to go out of the needle groove 62 again, and the needle was selected incorrectly.

In order to prevent this, it was considered to make the selector 52 thin in order to reduce the inertial force of the selector 52. However, when such a selector is used, the width of the needle groove in the portion where the selector is fitted must be reduced, and a needle bed having a needle groove for inserting the needle 59,
Two types of needle beds had to be used, one with a needle groove to insert the selector 52. Also, selector 52
Since it is troublesome to unintentionally move inside the groove when it is inserted into the needle groove 62, in order to add sliding resistance to the needle groove, slightly bend in a V shape in the middle part, and both ends and the middle part Although the groove walls are elastically contacted, the sliding resistance changes depending on the degree of bending, but it is difficult to keep the resistance value constant.

[Problems to be Solved by the Invention] In view of the above points, the present invention reduces the thickness of the selector to reduce the repulsive force due to the inertia of the selector during the needle selection operation, and the thickness of the selector. By eliminating the movement of the spacer to be inserted for the purpose of thinning the needle in the needle groove and making the spacer also serve as a spring for urging the select jack butt to project out of the needle groove, It is an object of the present invention to obtain a needle bed for a flat knitting machine, which can eliminate the need and can insert the needle and the selector with a needle bed having one kind of needle groove width.

[Means for Solving the Problems] In a needle bed for a flat knitting machine in which a selector operated by an actuator is inserted into a needle groove, the wire is locked to a pair of wires inserted in the needle bed in a direction intersecting the needle groove. Thin plate spacers having hooks on the head and tail of the base portion were attached to the side surface of the selector in a laminated state and inserted into the needle groove.

In addition, the thin plate-shaped spacer is inserted into the needle groove along with the side surface of the selector in a laminated state, and the middle portion of the separator is bent to have elasticity in the needle groove width direction, and sliding resistance to the needle groove. To cause.

[Operation] The selector and the separator are inserted in the needle groove in a laminated state, and the selector is attached to the needle groove together with the selector because the hooks of the head and tail are locked and fixed to the wire of the needle bed. When the selector is inserted and slides in the needle groove, it prevents delusions such as rising in the needle groove as it moves, and its both ends and the middle bend are pressed in the groove width direction. Exert. Further, since the spacer is thin plate-shaped, it is easy to make the degree of bending uniform, so that a uniform sliding resistance can be generated for each selector of each needle groove.

Also, even if the needle groove width of the portion where the spacer is inserted is the same as the needle groove portion where the needle is inserted, the thickness of the selector will be reduced by the amount of interposing the spacer.
This reduces the weight of the selector and reduces the inertial force generated when the selector operates.

Embodiment An embodiment of the needle bed of the present invention will be described below with reference to the drawings.

The needle 3, jack 4, select jack 5, and selector 6 are inserted into the needle groove 2 of the needle bed 1. Since the relationship among the needle 3, the jack 4, the select jack 5, and the selector 6 is the same as in the conventional example, detailed description thereof will be omitted.

The selector 6 has a hook 7 provided at the tip thereof in the width direction of the needle bed 1 (direction orthogonal to the paper surface in FIG. 1).
The tail portion 9 is swingable by being locked to the wire 8 extending to the bottom, and the butt 10, 11 and 12 are provided on the upper edge and the hanging pieces 13 are provided on the lower portion, respectively. The tail 9 comes into contact with the selector return cam 14, the butt 11 comes into contact with the oscillating member 16 of the actuator 15, and the butt 12 comes into contact with a selector pull-down cam (not shown).

On the side surface of the selector 6, a thin plate-shaped spacer 20 is inserted into the needle groove 2 in a laminated body and slidably between the two, both the selector 6 and the spacer 20. The selector 6 and / or the spacer 20 is made to have elasticity in the width direction of the needle groove 2 by bending the middle portion into a dogleg shape. As described above, the spacer 20 has a thin plate shape and has hooks 21 and 22 at the head and tail, respectively, and the elastic support arm 24 extends from the base portion 23 extending in the longitudinal direction of the needle groove 2. Elastic support arm 24 is second
In the embodiment shown in the drawing, it extends in a U-shape from the vicinity of the hook 21 provided on the head toward the hook 22 provided on the tail, and is biased so as to repel in the depth direction of the needle groove. The tip of the elastic support arm 24 is a wire that serves as a fulcrum for swinging the select jack 5.
It contacts the upper edge of the select jack 5 at a position closer to the tail than 25 and acts to push the butt 26 of the select jack 5 out of the needle groove 2.

In the above device, the needle selection action is now performed and the oscillating element 16 of the actuator 15 is activated, and the bat 11 of the selector 6 is activated.
Suppose that it touches. As a result, the selector 6 is pushed into the needle groove, but because the spacer 20 is provided along with the selector 6 in a stacked state, the selector 6 is thin and the weight thereof is small.
When the separator is pushed in, it repels from the inside of the groove due to inertia and operates without trying to move to the outside of the groove. At this time, since the spacer is fixed to the wire of the needle bed by the hook of the tail and the head, even if the selector that is in contact with the spacer moves in the needle groove, it is not possible for the spacer to move due to the movement. However, it is in a stationary state, and the tail portion of the select jack is pushed down by the elastic supporting arm provided at the lower portion thereof to urge the select jack butt in the direction of rising. The selector has sliding resistance due to elasticity due to the spacer bending in the groove width direction in a V shape, and does not move in the needle groove 2.

[Effects of the Invention] In the needle bed of the present invention, thin plate spacers are attached to the side surface of the selector in a laminated state and inserted into the needle groove. Even if the width of the needle groove is the same, the thickness of the selector can be reduced by the thickness of the spacer to reduce the weight, and the repulsion due to inertia during the operation of the selector can be reduced accordingly. You can Further, the spacer has a hook on the tail and the head, and is fixed to the wire of the needle bed by the hook, so that even if the selector that is in contact with the spacer moves in the needle groove, the spacer that moves is moved There is no delusion and it is not necessary to perform repair work such as correction of the position by moving the spacer. Further, since the spacer presses the tail portion of the select jack by the elastic support arm and urges the select butt upward, it is not necessary to use a conventional U-shaped spring for the select jack.

Further, in the case where the middle part of the separator is bent so as to have elasticity in the needle groove width direction so as to generate sliding resistance with respect to the needle groove, the above-mentioned inertia delusion causes friction between the spacer and the selector. Will also be suppressed by. Furthermore, since the frictional resistance between the selector and the needle groove wall obtained by bending the conventional selector can be converted into the frictional resistance by bending the spacer, bending the spacer is more effective than bending the selector. The bending angle can be accurately obtained because of the small thickness, and the obtained friction coefficient can be made uniform.

[Brief description of drawings]

FIGS. 1 to 3 show the present invention. FIG. 1 is a vertical side view of the entire needle bed, FIG. 2 is a side view of a spacer, FIG. 3 is a side view of a selector, and FIG. It is a vertical side view of an example. 1 …… Needle bed, 2 …… Needle groove, 5 …… Select jack, 6 …… Selector, 8,8 ′ …… Wire, 20 …… Spacer, 21,22 …… Hook, 23 …… Base part, 24 ... Elastic support arms,

Claims (2)

[Claims] 1. In a needle bed for a flat knitting machine, wherein a selector operated by an actuator is inserted into a needle groove, and a hook for locking a pair of wires inserted in the needle bed in a direction intersecting the needle groove is a base portion. A needle bed for a flat knitting machine, characterized in that thin plate-shaped spacers having a head and a tail are attached to a side surface of the selector in a laminated state and inserted into a needle groove. 2. A needle bed for a flat knitting machine, wherein a selector operated by an actuator is inserted into a needle groove, and a hook for locking a pair of wires inserted in the needle bed in a direction intersecting with the needle groove is a base portion. Insert the thin plate spacers on the head and tail of the needle into the needle groove along with the side of the selector in a stacked state, and bend the middle part of the separator to give elasticity in the needle groove width direction, and to the needle groove. A needle bed for a flat knitting machine, which is configured to generate sliding resistance.