JPS5845497B2 - Teamikinobunsenshinsouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is provided with a needle height image support mechanism for supporting knitting needles arranged in rows on a needle bed in two high and low positions in a mold in which a desired needle selection mode is repeated in plural sets, A needle folding lower member lowers the knitting needle pad onto a carriage sliding on the needle bed, and a cooperative action between the needle folding lower member and the needle height image support mechanism causes the knitting needles placed at either the high or low position to be moved forward or backward. This invention relates to a hand knitting machine equipped with a sorting cam formed with a low-walled opening that allows low-position needles to pass under it in order to sort them, and prevents high-position needles from passing through.

The purpose of this is a partial needle selection device for a hand knitting machine that can perform partial needle selection, which is capable of selectively selecting only a desired set of needle selection modes from among multiple sets of needle selection modes arranged at either two high or low positions, i.e., partial needle selection. Our goal is to provide the following.

A specific example thereof will be explained below based on the drawings.

Reference numeral 1 denotes a needle bed in which a large number of knitting needles 2 are movable back and forth, up and down, and are always resiliently held in an upward position by springs 3. A rear needle support plate 4 fixed to the rear of the needle bed has a width of the knitting needles 2. A needle insertion hole 4a having a width twice or more than that of the knitting needle 2 is formed, and a needle guide plate 5 having a groove approximately the same width as the knitting needle 2 approximately in the middle between the front and back and regulating the movement of the knitting needle 2 in the left-right direction is fixed.

Therefore, only the rear part 2a of the knitting needle 2 can move in the left-right direction against its own elastic force, and when it moves, it generates a return force to its original position.

Reference numeral 6 denotes a locking member fixed to the rear needle support plate 4, and a protrusion 6a is provided on the upper part of the locking member within the vertical movement locus of the normal position of the knitting needle 2.
is formed by the knitting needle 2, and when the knitting needle 2 is lowered against the elasticity of the spring 3, the lower position needle prevents the knitting needle 2 from rising and holds it in the lowered position until after the downward force is released. Produce 21.

Reference numeral 7 denotes a plurality of needle selection plates in which needle selection protrusions 7a are formed at positions spaced apart by a certain distance, each of which has an operating position (third It is provided movably between the radiation dose shown in the figure) and the inactive position (shown by the two-dot chain line in Fig. 3) where the lowering is not obstructed.

Next, a needle selection plate centering mechanism that is provided at the rear of the needle bed and moves the needle selection plate 7 to an active position or a non-active position will be explained.

8 is a needle selection card equipped with a needle selection signal, 9 is a drum that holds the needle selection card 8 and retracts, and 10 is set to an upper position (actual dose in Figure 2) or a lower position (second position) according to the needle selection signal. The end portion is inserted into and secured to the needle selection plate 7 by the needle selection plate operating rod that is moved to the point shown by the dashed line in the drawing.

A leaf spring 2 11 always urges the needle selection plate operating rod 10 upward at each location moves only the needle selection plate operating rod 10 in the lower position in the left-right direction (longitudinal direction of the needle bed), and the needle selection plate This is a moving member that moves the needle selection plate 7, into which the operating rod 10 is inserted and engaged, to an active position (or non-active position).

Reference numeral 13 denotes a fixing member that holds the needle selection plate operating rod 10 in the upper position so as not to move.

14 is connected to the carriage 17 by the swinging rod 27 of the carriage 17.
When the sliding direction of the needle bed changes, the rearward position (shown by the dotted chain line in Figure 2)
A driving member 15 is swung by the driving member 14 to move the moving member 12 and the needle selection plate actuating rod 10.
This is an activation board that operates the alignment of the needles to the lower position and the transmission of the needle selection card 8.

The needle selection plate centering mechanism, the locking member 6, and the needle selection plate 7 constitute a needle height support mechanism.

Reference numeral 16 denotes a needle-up valve member having a front inclined surface 16a that engages with the rear part 2a of the low-position needle 2 and rises.

Reference numeral 17 denotes a carriage that slides on the needle bed 1 and is provided with various gums for knitting, and provided with various cams for needle selection on the outside thereof.

To explain the needle selection cams, 18 is a forward cam that engages with all the knitting needles 2 that have been retracted to the knitting time position (B position) and advances to the needle selection position (C position), 19 is a rear guide wall, 20 The butts of all knitting needles 2 at the needle selection position are connected to the spring 3.
This is a needle folding lower member that is pressed down one after another against the elastic force of the needle.

Reference numeral 21 denotes a front guide wall 21a, a low wall opening 21b that allows the low position needle 21 to pass downward while maintaining its position, and prevents the high position needle 2b from passing through, and a low wall opening 21b that allows the high position needle 2h to pass through the lower part while maintaining its position, and the high position needle 2h to the knitting time position. This is a selection cam formed with a backward cam portion 21c that guides the low-position needle 21 to the needle selection position (position B) and a forward cam portion 21d that advances the low-position needle 21 again to the needle selection position (position C).

22 forcibly retreats the low position needle 21 that has passed below the low wall opening 21b, and forcibly rises in cooperation with the front inclined surface 16a of the needle upper valve member 16, and the locking member This is a return cam that disengages the protrusion 6a of 6 and returns it to the high position.

23 hangs down in contact with the low wall opening 21b of the sorting cam 21, blocks the low wall opening 21b, and is at the same height as the retreating cam part 21c, so that both the high position needle 2h and the low position needle 21 can pass through. It swings up and down about the pin 24 to take an active position where it blocks and retreats, and an inactive position where it releases the low wall opening 21b and allows the low position needle 21 to pass underneath. This is a possible cut-off cam.

Reference numeral 25 denotes a partial needle selection operation plate pivotally connected to the carriage 17, one end of which is bent upward to secure an engagement pin 25a that engages with a cam portion 23a formed on the cutoff cam 23; It extends upward and protrudes from a cover or the like so that the swinging position of the partial needle selection actuation plate 25 can be manually operated, forming a manual operation part 25b, and the other end is fixed to an actuation pin 25c that protrudes downward from the carriage 17. The spring 26 is stretched between the carriage 17 so that the operating pin 25c is at each position in the front and back, and the engaging pin 25a is elastically at each position in the left and right direction.

Therefore, when the actuation pin 25c is in the forward position (the solid dose position in Figs. 6 and 7), the engagement pin 25a is in the left position in Fig. 7 (the right position in Fig. 8), and the cutoff When the cam 23 is placed in the operating position (FIG. 8 solid dose, ninth illustration) and the operating pin 25c moves to the rear position (FIGS. 6 and 7, indicated by chain lines), the retaining pin 25a is the right position in Figure 7 (left position in Figure 8)
, and the cutoff cam 23 is raised to the inactive position (eighth position).
It is placed as shown by the dotted chain line in the drawing and shown in Fig. 9A).

2B, 28? Also, the left and right signal members have engagement grooves 28a, 2 on the upper surface in which the operating pin 25c of the partial needle selection operating plate 25 can engage.
8'a, and the lower front part G forms insertion protrusions 28b, 28'b which are inserted into the rear end of the needle groove 1a of the needle bed 1.

First relationship between the actuation pin 25c and the engagement grooves 28a and 28'a
The left signal member will be explained with reference to FIG. 0 (the right signal member is formed bilaterally symmetrically with the left signal member).

When the actuating pin 25c passes from the left, it is moved back to the rear position by the backward inclined portion 28c, and when it passes from the right, it is advanced to the forward position by the forward inclined portion 28d.

Note that the stepped portion 28e. 28'e is this step part 28e, 28e
This serves to indicate that only the innermost knitting needles 2 will be selected.

Therefore, the needle groove 1a where the knitting needle 2 is at the knitting time position (position B)
The insertion protrusions 28b and 28'b are inserted only into the stepped portion 28.
e, outward from 28'e, retreating from the rear body needle position (A position) and forming retreating parts 28f, 28'f.

The operation will be explained in the above explanation.

First, a desired needle selection plate T is placed in an active position that prevents the knitting needles 2 from descending by the needle selection plate extracting mechanism, and the signal members 28, 28'
If the manual operation part 25b is operated without setting the needle on the needle bed 1, and the carriage 17 is slid with the operating pin 5c in the rear position, all the knitting needles 2 that have been retracted to the knitting time position (position B) by the knitting cam is the needle selection position (C position) by the forward cam 18.
The lower needle folding member 20 pushes down the needle against the elastic force of the spring 3.

At this time, the rear part 2a of the knitting needle 2, which was prevented from descending by the needle selection plate 7, could not descend beyond the protrusion 6a of the locking member 6 as shown in the third figure, and the descending force of the lower needle folding member 20 was released. Later, the elastic force of the spring 3 returns to the solid line hanging position to become the high position needle 2h, and the rear part 2a of the knitting needle 2, which is not prevented from descending by the needle selection plate 7, engages with the protrusion 6a and the lower needle folding member 2
Even after the zero downward force is released, the needle 21 is prevented from rising and is held in the downward position, resulting in the low position needle 21.

Next, the low-position needle 21 reaches the low-wall opening 21b of the sorting cam 21, passes under it, is once retracted by the return cam 22, returns to the high position, and then reaches the needle selection position (C position) by the forward cam 21d. The high position needle 2h is moved forward and the low wall opening 2
1b and cannot pass below it, and is retreated to the knitting time position (position B) by the retreating cam portion 21c.

In this way, all the knitting needles 2 involved in knitting are sorted back and forth into patterns in which a plurality of sets of desired needle selection modes are repeated according to the needle selection signal of the needle selection card 8.

Next, when performing partial needle selection, for example, if you want to select only the knitting needles 2 in the S section in FIG. , 2T.

Insert the insertion protrusions 28b and 28'b into the rear end of the needle groove 1a of the needle bed 1 so that the signal member 28.2
Install 8.

Then, when the manual operation part 25b is operated to set the operating pin 25c to the forward position, the blocking cam 23 is moved to the sorting cam 21 by the engagement between the engaging pin 25a and the cam portion 23a of the blocking cam 23.
This is the operating position for blocking the low wall opening 21b.

If the carriage 17 is slid in this state, the knitting needles 2 in areas other than the S section will pass through the position of the lower needle folding member 20 and become the high position needle 2h and the low position needle 21, and the needles will be moved to the cutoff cam 23. They are prevented from passing through the low wall opening 21b, are moved backward together, and are further moved to the knitting time position (B) by the backward cam portion 21c.
position).

Therefore, knitting needles 2 other than those between S are not selected. On the other hand, regarding the knitting needle 2 in the S section, when the actuating pin 25c passes the position of the left signal member 28, the backward inclined portion 28c of the engagement groove 28a moves from the front position to the rear position (as shown by the two-dot chain line in Figs. 6 and 7). (This movement occurs after the knitting needle 2T is retracted by the cutoff cam 23.)
The low wall opening 21b of the sorting cam 21 is released, and the low position needle 21 passes under it,
The needles are selected back and forth according to the needle selection signal on the needle selection card 8.

Next, when the actuating pin 25c passes the position of the right signal member 28', the forward slope portion 28'd moves the actuating pin 25c to the forward position (Figs. 6 and 7).
This movement is performed after the knitting needle 2'S has passed under the low wall opening 21b or has retreated but before the knitting needle 2T reaches the low wall opening 21b) the cutoff cam 23 is activated. The needle will not be selected after that, and only partial needle selection will be performed.

As is clear from the above explanation, the device of the present invention has the cutoff cam at the operating position and allows the needle height image support mechanism and the needle folding lower member to work together to select the desired needles from the knitting needles arranged in a row on the needle bed. By repeating multiple sets of patterns, both needles of knitting needles supported at either two high or low positions can be moved back to align on the same line without having to be sorted back and forth, and the signal member can be placed on the needle bed. By doing so, the cutoff cam can be placed in the inactive position only in the section where the signal member is placed on the needle bed, and only in that section the high-position needles among the knitting needles supported at the two high and low positions are placed in the selection cam. The low position needle can be passed through the low wall opening of the sorting cam to sort both needles back and forth.

Therefore, only the knitting corresponding to the section in which the signal member is set so that the cut-off cam is in the inactive position is sorted back and forth, and then the pattern is knitted by the knitting needle cam, and a partial pattern can be knitted by partial needle selection.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of the device of the present invention, Fig. 2 is a side view of the needle height image support mechanism, Figs. Figure 7 is a top view of the same, Figure 8
9 is a side view of the cut-off cam, FIG. 9 is an explanatory diagram of the action of the cut-off cam, FIG. 10 is a top view of the needle bed, and FIG. 11 is a front view of the signal member. 6 to 15: Needle height image support mechanism, 20: Needle folding lower member, 21:
Sorting cam 21b: Low part between walls, 23: Shutoff cam.

Claims (1)

[Scope of Claims] 1. A needle height image support mechanism for supporting the knitting needles arranged in rows on the needle bed in one of two high and low positions using a mold that repeats a desired needle selection mode in plural sets, and slides the knitting needles on the needle bed. A needle folding lower member lowers the knitting needle butt on a moving carriage, and the needle folding lower member and the needle height image support mechanism work together to sort knitting needles arranged at either a high or low position back and forth. In a hand knitting machine equipped with a sorting cam formed with a low-wall opening that allows the low-position needles to pass directly below it and prevents the passage of the high-position needles, the low-wall opening of the sorting cam is blocked. It is movable between an active position where the low wall opening is opened and the low wall opening is opened and the low position needle Q) is allowed to pass thereunder. 1. A partial needle selection device for a hand-knitting machine, characterized in that a cut-off cam is provided on a carriage, and a signal member is installed on the needle bed for placing the cut-off cam in the inactive position.