JP3241271B2 - Loom heald frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heald frame for a loom, and more particularly to an improvement in a technique for attaching a heald to a heald frame.

[0002]

2. Description of the Related Art A heald frame includes upper and lower staves, heald support members such as a carrier rod, and left and right side frames. Two upper and lower heald support members are mounted between the side frames. A number of healds are supported side by side on the heald frame with the upper and lower ends engaged with the heald support member.

[0003]

As described above, the heald is engaged with the heald support member at the upper and lower ends, but is not necessarily fixed. Therefore, the heald is supported by the heald frame with a freedom of movement.

[0004] In such a supporting state having a degree of freedom of movement, when the heald frame moves up and down in the weaving operation, the heald tends to roll. Such hedging of the heald often damages the warp or induces breakage of the warp.

In particular, as the loom speed increases, as in recent times, the movement of the heald frame and, consequently, the speed of the heald, the acceleration and deceleration of the heald also increase. It becomes something.

[0006] In view of the state of the prior art, an object of the present invention is to reduce warp damage and warp breakage due to hedging of a heald.

[0007]

Therefore, in the present invention, a gap exists between the heald and the heald in a state where the heald is in contact with the upper end of the upper heald support member, and the heald is moved within one cycle of the vertical movement of the heald frame. The gist is that a restraining member formed to contact the heald at least once is attached to the surface of the upper steve of the heald frame facing the heald.

[0008]

According to the vertical movement of the heald supported by the heald support member accompanying the vertical movement of the heald frame, the restraining member intrudes between the adjacent healds at least once in one cycle, thereby suppressing the heald from rolling. Suppress.

[0009]

FIG. 1 shows an example of a heald frame according to the present invention, in which an upper steve 11 is provided with a restraining member 3 made of a brush. That is, the heald frame 1 is composed of a pair of upper and lower steaves and a pair of left and right side frames 13, and a pair of upper and lower heald support members 15 laid between the side frames 13 is provided between the steve 11. Installed. A large number of healds 2 are engaged with these heald support members 15 at the upper and lower ends, and are supported side by side so as to be movable up and down.

FIG. 2 shows a case of a rod-type heald frame, in which a restraining member 3 made of a brush is mounted in a recess at the lower end of the upper steve 11 so as to face the upper end surface of the heald 2.

The length of the restraining member 3 is set so that when the heald 2 rises most, it enters the adjacent heald 2. Further, as shown in FIG. 3, when the heald 2 is in contact with the upper end of the heald support member 15, it is preferable to set the gap G between the tip of the suppressing member 3 and the opposing heald 2. . This is because when the warp breaks, the warp repair operation is easier if the restraining member 3 does not enter between the healds 2. That is, since the heald 2 and the suppressing member 3 do not come into contact with each other, the suppressing member 3 does not become an obstacle when separating the heald 2 in the warp repair work, and when the work is completed, the heald 2 returns to the substantially uniform state. Because.

The restraining member 3 needs to be capable of restricting the hedging of the heald when the heald enters the space between the healds 2. In addition, flexibility that does not damage the heald is required. Any flexible material that satisfies these conditions may be used. For example, a brush, a moquette, a loop-shaped tex, a coil spring, or the like can be used.

FIG. 4 shows an application of the present invention to a riderless type heald frame. The mounting mode is the same as that of the rod type shown in FIG.

[0014]

According to the present invention, the heddle during weaving is suppressed, so that warp damage and warp breakage can be effectively reduced even under high speed conditions.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of a heald frame according to the present invention.

FIG. 2 is an enlarged side view of the same.

FIG. 3 is a partial cross-sectional side view showing a dimensional relationship between the heald and the suppression member.

FIG. 4 is a partially sectional side view showing another example of the heald frame of the present invention.

[Explanation of symbols]

 1: heald frame 11: steve 15: heald support member 2: heald 3: restraining member

Claims (2)

(57) [Claims] 1. A pair of upper and lower steaves, a pair of left and right side frames, and a pair of upper and lower heald support members that are erected between the side frames and support the healds so that they can freely move up and down. in heddle frames, the upper heddle facing surfaces of stevensite are attached suppressing member having a flexibility, the suppressing member includes a tip in a state in which the heald is in contact with the upper end of the upper heddle support member A heald frame for a loom, characterized in that a gap is present between the upper end of the heald and the heald, and the heald frame is formed so as to contact the heald at least once in one cycle of vertical movement of the heald frame. 2. The heald frame for a loom according to claim 1, wherein said restraining member is a brush extending downward and having a heald penetrating therethrough.