JPS6214146Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a thread knitting device for a hand knitting machine.

Conventionally, as the above-mentioned devices, there are known devices in which a thread opening is provided on the arm of the carriage so as to be movable left and right, or devices in which thread hooks for the thread are provided at the left and right ends of the arm. However, in both cases, every time the sliding direction of the carriage changes, the thread for the thread is moved to the front side in the direction of movement of the carriage, and the knitting yarn is transferred to the thread hook for the thread, which is also on the front side in the direction of movement. This not only significantly lowers work efficiency but also makes it easy to make mistakes in knitting operations.

In view of the above-mentioned conventional drawbacks, the present invention aims to provide a thread knitting device for a hand knitting machine that can automatically lock thread weft yarns to a locking protrusion on the front side in the direction of carriage movement as the carriage moves. It is something to do.

The illustrated embodiment will be described below.

Reference numeral 1 denotes a carriage mounted on a needle bed 2 so as to be able to move left and right, and an arm 3 is detachably attached to the front side.

The arm 3 has a generally U-shaped side surface, has a horizontally long rectangular upper plate 4 with a horizontally elongated window hole 5 open to the center front side, has a lower plate 6 fitted with a pair of pressers 7, and has a thread opening body. 8 is mounted so as to face the center of the window hole 5, circular brushes 9 for thread knitting are rotatably screwed to the left and right sides thereof, and a movable body 10 is mounted along the rear edge of the window hole 5. ing.

The movable body 10 has an L-shaped cross section and a long and narrow plate shape, and a carriage 1 is attached to the back surface of the upper plate 4 by shafts 13 inserted into four long holes 12 formed at the left, right and center of the horizontal portion 11. The vertical portion 14 is supported movably in the same direction (left and right) as the movement direction, and the vertical portion 14 is connected to the window hole 5.
It protrudes slightly forward from the rear edge 5'.

Approximately rectangular plate-shaped locking protrusions 15 and 15' are provided on the left and right lower edges of the vertical portion 14 to project horizontally forward and downward to the window hole 5. The part between the protrusions 15 and 15' is the guiding part 1
4'.

The locking protrusions 15, 15' are cut out diagonally at the inner corner, and the outer edge is the locking edge 1 of the weft for threading.
6,16'.

Further, a knob 17 is provided on the upper surface of the central portion of the horizontal portion 11, and a mounting plate 18 is provided extending downward from the rear edge of the central portion.

19, 19' are substrates 20, 20 bent into an L shape.
It is a guide member in the shape of a substantially triangular plate extending on one side.
The other side is screwed and arranged so as to overlap in parallel with the locking projections 15, 15' at a position close to the bottom within the movement range of the locking projections 15, 15'.

Reference numerals 21 and 22 denote activation members placed on the needle bed 2, which engage switching members 23 and 24 provided on the mounting plate 18 to move the moving member 10 rearward in the traveling direction of the carriage 1.

That is, the activation members 21 and 22 have a substantially rectangular parallelepiped shape, and are provided with a through hole 26 for inserting the sinker needle 25 in a row on the front side, and a cutout step 27 is formed on the rear side of the activation member 21. An inclined cam surface 28 is formed in the portion.

Further, the activation member 22 has a groove 29 formed in the center portion of the upper surface, and an inclined cam surface 30 formed in the left side portion.

Thus, the activation member 21 is placed on the outside of the leftmost knitting needle 31a among the knitting needles 31 involved in knitting, and the activation member 22 is placed on the outside of the rightmost knitting needle 31b. It is removably placed and fixed on top.

Moreover, the switching members 23 and 24 are substantially horizontally long rectangular plates and have engaging oblique edges 32 and 33 formed at their tips.
The base end is rotatably supported on the mounting plate 18 by shafts 34 and 35, and the switching member 23 is placed forward and the switching member 2 is
4 to the rear and facing each other in parallel, and the axis 3
Springs 36 and 37 wound around 4 and 35 are biased to maintain the required height position.

Then, the engaging bevel 32 of the switching member 23 engages with the inclined cam surface 28 of the starting member 21, but passes through the groove 29 without engaging the starting member 22, and the engaging bevel 32 of the switching member 24 The engagement bevel 33 engages with the inclined cam surface 30 of the activation member 22, but is set in a relationship such that it passes through the notch step 27 without engaging with the activation member 21.

However, the knitted fabric 40 is now formed by the ground yarn 38 which is stretched over a known yarn take-up spring (not shown) and fed to the yarn feeder body 8, and the thread weft 39 which is fed through the window hole 5. (Fig. 1), and starting members 21,
22 is set, the weft 39 faces the locking edge 16 at the left end of the window hole 5, and the locking protrusion 15 is in the locking position where the locking edge 16 is on the left outside of the guide member 19. It is assumed that the locking protrusion 15' is located in the non-locking position where the locking edge 16' overlaps above the guide portion 19'.

When the carriage 1 is moved from the position shown in Fig. 1 to the left (see Fig. 1), the weft thread 39 is stopped by the locking edge 16 of the locking protrusion 15 at the front in the direction of movement (Fig. 11). The organization takes place.

That is, when the carriage 1 passes the starting member 22 , the switching member 23 passes through the groove 29 , while the switching member 24 has its engagement bevel 33 engaged with the upper surface of the starting member 22 and is biased by the spring 37 . The locking protrusion 15 continues to be located at the locking position by rotating clockwise (FIG. 9A) against the movement.

Thus, when the carriage 1 moves to the left to perform thread knitting and then passes the starting member 21, the switching member 24 passes through the cutout step 27, while the engagement bevel 32 of the switching member 23 is inclined. After the movable body 10 moves to the right (dotted line in FIG. 10, FIG. 12) by the engagement of the cam surface 28 (FIG. 9b), the switching member 23 moves against the bias of the spring 36. It rotates counterclockwise (FIG. 9B), engages the engagement bevel 32 with the upper surface of the activation member 21, and passes through.

When the movable body 10 moves to the right as described above, the locking protrusion 15 is moved to the non-locking position and the locking protrusion 15' is moved to the locking position, and the thread take-up spring moves to the right. The weft yarn 39, which is being pulled as shown in FIG. 12, comes off the locking edge 16 and is guided by the guide member 19 to the guiding part 14', and guided to the right (as shown in the figure) by this guiding part 14'. It passes over the member 19' and the locking protrusion 15' and is automatically displaced to the right end of the window hole 5 to face the locking edge 16'.

Next, when the carriage 1 is moved from the position shown in FIG. 12 to the right (see the same figure), the weft yarn 39 is locked to the locking edge 16' of the locking protrusion 15' in front of the carriage 1 in the direction of movement, and thread knitting is performed. be exposed. That is, when the carriage 1 passes the starting member 21, the switching member 24 passes the switching step 27, and the switching member 23 has its engagement bevel 32 engaged with the upper surface of the starting member 21 and the spring 36 It passes by rotating in a predetermined direction against the bias, and the locking protrusion 15' remains in the locking position.

Thus, when the carriage 1 moves to the right to perform thread knitting and then passes the starting member 22, the switching member 23 passes through the groove 29, while the engagement bevel 33 of the switching member 24 is aligned with the inclined cam surface. After the movable body 10 moves to the left by engaging with the switching member 30, the switching member 24 rotates in a predetermined direction against the bias of the spring 37, and the engaging bevel 33 touches the upper surface of the activation member 22. Engage and pass.

When the movable body 10 moves to the left as described above, the locking protrusion 15' is displaced to the non-locking position, and the locking protrusion 15 is displaced to the locking position, thereby causing the carriage 1 to move to the left. In the same manner, the weft thread 39 comes off the locking edge 16' and is automatically displaced to the left end of the window hole 5 to face the locking edge 16.

As is clear from the above, according to the present invention, in connection with the sliding movement of the carriage, the switching member and the starting member attached to the needle bed work together to move the weft thread for the thread forward in the carriage traveling direction. In order to lock the locking protrusions, one of the locking protrusions is displaced to the non-locking position, and the other locking protrusion is automatically displaced to the locking position and the weft is locked there. Therefore, there is no need to perform complicated manual operations such as switching the weft yarn to the thread hook in the forward direction of travel each time the sliding direction of the carriage changes, which is prone to errors, and allows thread knitting to be performed quickly and reliably. be able to.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with Fig. 1 being a plan view showing the knitting state, Fig. 2 being a rear view, Fig. 3 being a bottom view, and Figs. 4 to 6 showing the state in which the activation member is attached. 7 and 8 are side views of the main parts showing the relationship between the cutting member and the switching member, and Figs. 10 is a plan view of the main parts, FIG. 11 is a plan view showing the knitting state in which the carriage moves leftward from the position shown in FIG. FIG. 12 is a plan view showing the knitted state after moving further to the left from the position shown in FIG. 11 and passing through the starting member on the left side. 3... Arm, 1... Carriage, 10... Moving member, 15, 15'... Locking protrusion, 14'... Guide part, 39... Weft, 19... Guide member, 2... Needle bed , 21, 22... Starting member, 23, 24... Switching member.

Claims (1)

[Scope of utility model registration request] A movable member attached to the arm so as to be movable in the direction of movement of the carriage is provided with locking protrusions for locking the weft for threading at both ends thereof, and a guide for guiding the weft between these locking protrusions. In addition, the arm is provided with a protruding guide member that overlaps each of the locking protrusions and guides the weft to the guide part, and the movable member is provided with a guide member that is detachably attached to the front part of the needle bed. The locking protrusion at the rear in the direction of carriage travels to the locking position where the weft is locked, and the front locking protrusion overlaps the guide member to lock the weft. 1. A thread knitting device for a hand knitting machine, characterized in that a switching member is provided for moving the movable member to a non-locking position where the thread is released.