JPH0318519Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a connecting ring that connects a spring arrow and a heald in an automatic loom.

(Prior art and its problems) This type of connecting ring was first developed by the applicant in the Showa era.
The proposals proposed as Utility Model Registration Application No. 55114 of 1961 and Utility Model Registration Application No. 51219 of 1988 are known.

The former connecting ring has a hook portion bent in an inverted U shape from the circumferential upper end of a cylindrical body that can be inserted into the cylindrical shape of the spring arrow, as shown in Fig. 5. There is a tongue piece that protrudes inwardly at the tip of the bent hanging part of the hook part, and a protrusion piece that protrudes towards the tongue piece at a slightly upper part opposite to the tongue piece at the rising part of the hook part. ing. However, with this configuration, despite having the tongue piece and the protruding piece, there is a risk that the hook part may come out of the hole in the heald during the vertical movement, and the tension required for the vertical movement is also limited to the rising side of the hook part. Since the hook hangs on books, there were concerns that the hook could break due to fatigue.

As shown in Fig. 6, the latter connecting ring has a configuration in which inverted U-shaped hook rods are erected from opposite directions on the body. The cut end surface was reduced to less than 1/2, which also left a problem in durability.

(Technical Problem) The object of the present invention is to firmly connect the healds via a hook in a connecting ring between the spring arrow 9 and the heald 10.

(Technical means) The technical means for solving this technical problem are: (a) a body part 2 with a ring-shaped locking part 1 formed on the surface of a cylindrical body; and a hook 4 formed by drilling a through hole 3 in the center, (c) vertically dividing either the left or right peripheral wall of the hook 4, and (d) dividing edges 5 and 6 that are in mutually abutting contact with each other. The notches 7 and 8, which have approximately half the thickness, are formed at opposite positions on the upper and lower sides.

(Effect of technical means) Since the body part 2 is formed in a cylindrical shape, when the body part 2 is inserted into the inside of the spring arrow 9 by turning it, etc., the diameter of the spring gradually increases. The barrel 2 can be inserted into the spring arrow 9.

When the force applied to the spring arrow 9 is released at this stage, the arrow 9 tries to shrink to its original diameter, but because the ring-shaped locking part 1 is formed on the surface of the body 2, , spring arrow 9 and body part 2
They are engaged to such an extent that they do not easily separate.

The locking portion 1 of the trunk is formed by providing several band-shaped unevenness in the shape of a headband, or by arranging a plurality of appropriately shaped protrusions in the circumferential direction.

Next, the heald 10 and the hook 4 are connected using the ring-shaped hole 11 formed at the lower end. Since notches 7 and 8, which have approximately half the thickness of the edges 5 and 6, are formed at opposite positions on the upper and lower sides, the annular hole 11 of the heald facing the notches 7 and 8 is , until it comes into contact with one dividing edge of the hook 4.

When the hook 4 is twisted at the point where the ring-shaped hole 11 of the heald 10 touches either of the dividing edges 5 and 6, the dividing edges 5 and 6 are slightly separated, creating a gap. , the heald 10 can be inserted into the hole 3 and the two can be firmly connected.

In addition, the notches 7 and 8 of the dividing edges 5 and 6 of the hook
In addition to being formed by being displaced on the front and back sides of the hook 4, they can also be formed by being displaced inward and outward.

(Effects of the present invention) The hook and heald can be firmly connected,
Furthermore, since there is no gap unless an external force is applied to the hook, there is no worry that the heald will come off the connecting ring while the loom is in operation.

Further, since the hook can be configured to have the same thickness around the through hole 3, it has the advantage that it remains strong at all parts and can withstand continuous use for a long period of time.

In addition, by twisting the hook, a gap is created at the dividing edge, so even if the spring arrow or heald breaks, it can be replaced in a short time, and furthermore, This has the advantage that healds can be easily added and removed.

[Brief explanation of drawings]

The drawings are for explaining specific examples of the above-mentioned technical means, and FIG. 1 is a front view of the connecting ring, FIG. 2 is a right side view of the connecting ring, FIG. 3 is a perspective view of the connecting ring, and FIG. 4 is a vertical sectional view taken along the line A-A in FIG. 1, FIGS. 5 and 6 are perspective views of a known connecting ring, FIG. 7 is an enlarged perspective view of the connecting ring showing a state of use, and FIG. 8 is a state of use. FIG. 2 is a perspective view of main parts of a loom. 1...Locking part, 2...Body part, 3...Through hole, 4
... Hook, 5, 6 ... Separated edge, 7, 8 ... Notch, 9 ... Spring arrow, 10 ... Heald, 1
1... Ring-shaped hole.

Claims (1)

[Scope of utility model registration request] It consists of a body with a ring-shaped locking part formed on the surface of the cylindrical body, and a hook that is fixed upright on the top of the body and has a through hole in the center. A connecting ring between a spring arrow and a heald, which is divided into upper and lower halves, and has notches approximately half the thickness of the halves of the halves that come into contact with each other at opposite positions in the upper and lower halves.