JP2000154445A - Reed for loom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reed for a loom having a small passing resistance even on passing knots formed on one straight line in transverse direction of a row of warp yarns, passing the knots smoothly between dents of the reed and not generating a yarn cut. SOLUTION: This reed for a loom is constituted by keeping an interval h between adjacent dents of the reed as an approximately same interval in the central part of the dents of the reed and having larger intervals k1, k2 between the dents of the reed in the top end part or a bottom end part thereof than the interval h of central part, and the preferable style of the dents of the reed is provided by arranging a vertical dent 1 and the deformed dent 2 alternately.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a reed for a loom,
More specifically, the present invention relates to improvement of reed resistance to warp knots.

[0002]

2. Description of the Related Art A reed is a tool in which a plurality of reeds made of a metal sheet or a round bar are arranged in parallel at equal intervals, and the upper end and the lower end are fixed to parallel bars. It is used when a woven fabric is formed by passing a warp between reeds and holding a weft passed from the lateral direction. In the case where the density of the warp yarns is dense, for example, 20 yarns / inch or more, the interval between the reeds becomes narrow. In particular, in the case of a monofilament, a single yarn can easily pass. Even so,
When a knot is formed, the width of the knot is about three times as large as a single yarn, so that the passage resistance increases when the knot passes through the reed. In such a case, the knot pushes the reed wings to both sides and the reed wings are slightly distorted, so that escape occurs and the knot easily passes.

[0003] By the way, in the case of warp splicing in a loom,
The old warp is cut straight along the warp running direction between the warp beam and the warp threading member such as a heddle and a reed, and is spliced along the straight line with a corresponding new warp by a warp splicing machine. The cloth is passed through the reed and guided to the weaving device to start weaving. However, in the case of warp splicing,
If the knots of the old and new warp yarns formed along the horizontal line of the warp row enter the reed wings at the same time, it is difficult for one knot and the next knot to interfere with each other and to form a relief due to the distortion of the reed wings. Therefore, there is a problem that the knot is caught between the reed wings, making it difficult to pass or leading to thread breakage.

In order to solve such a problem, for example, Japanese Patent Application Laid-Open No. 3-59148 discloses a warp splicing method in which a warp splicing position is set to be shifted to a plurality of warp advance positions. However, this method requires complicated operations and poor workability, and further improvement has been demanded.

[0005]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has low passing resistance between reed wings even when knots formed in a horizontal straight line of a warp row pass at the same time, and the knot smoothly moves between reed wings. The purpose of the present invention is to provide a loom reed that does not cause warp breakage after passing through.

[0006]

According to the present invention, as a means for technically solving the above-mentioned problems, the spacing between adjacent reeds at the center of the reed is kept substantially equal, A reed for a loom characterized in that the interval between the reeds at the upper end or the lower end of the loom is larger than the interval at the center. It is preferable that the reed wings are formed by alternately arranging vertical wings and deformed wings.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a reed for a loom according to the present invention will be described in detail based on one embodiment. FIG. 1 is a partially enlarged view of a reed for a loom according to one embodiment of the present invention. In FIG. 1, 1 is a vertical wing, 2 is a deformed wing, and each upper end 1
1, 21 and lower ends 12, 22 are fixed to the upper cross bar 3 and the lower cross bar 4, respectively. The deformed wing 2 has a configuration having two bent portions 23 and 24, and forms a vertical parallel portion 25. The vertical wing 1 and the deformed wing 2 are fixed to the crosspiece 3 such that the upper end 11a of the vertical wing 1a and the upper end 21a of the deformed wing 2a are adjacent to each other, and the deformed wing is adjacent to the lower end 12a of the vertical wing 1a. The lower end 22b of the 2b is fixed to the crosspiece 4 adjacent thereto. Hereinafter, similarly, the vertical wings 1 and the deformed wings 2 are alternately arranged and fixed between the crossbars 3 and 4 to form a reed.

With such a configuration, in the center of the reed wing, the deformed wing 2b forms a vertical state at the parallel portion 25b, and the parallel portion 25b is substantially the same as the vertical wings 1a and 1b adjacent to the left and right. The regular interval h is maintained. At the upper end of the reed wing, there is a distance k1 between the upper end 11a of the vertical wing 1a and the upper end 21b of the deformed wing 2b.
> H. At the lower end of the reed, the vertical wing 1
b has a distance k2 between the lower end 12b of the deformed wing 2b and k2> h. In this case, k1, k
2 are substantially equal and have a width approximately twice as large as h.

When weaving is performed using the reed, the warp passes between the vertical wing 1 and the deformed wing 2 substantially at the center of the reed as shown in FIG. Then, the warp is spliced on the loom, and the knots of the old and new warp yarns formed along the horizontal line of the warp row enter the reed wings at the same time.
Due to the distortion of the reed feathers, the knot escapes in the wide direction, and FIG.
As shown in (1), the knot passes through a wide space at the upper end or the lower end. Since the wide interval portion has a width approximately twice as large as the central portion, even if the thickness of the knot in the case of a monofilament is approximately three times the thickness of the monofilament, it can easily pass.

In the present invention, the shape and arrangement of the reed fins are not limited to the present embodiment, and various embodiments can be adopted within the scope of the claims.

FIG. 2 is the same as the above embodiment in that the deformed wing 2 has two bent portions, but the vertical wing 1 and the upper and lower ends of the deformed wing 2 are adjacent to each other, Instead of being fixed to 4, they are fixed to the crossbars 3 and 4 at a slight interval. With this configuration, the interval between the wide portions is smaller than twice the interval between the central portions, but the object of the present invention can be sufficiently achieved.

FIG. 3 shows a configuration in which the vertical wings 1 and the deformed wings 2 are arranged alternately and the deformed wings 2 are straight. The upper and lower ends of the wing 1 and the deformed wing 2 are fixed to the crosspiece adjacent to the upper and lower ends of the adjacent vertical wing 1 and the deformed wing 2, respectively.

FIG. 4 shows the upper and lower ends of the vertical wing 1 and the deformed wing 2 in which the vertical wing 1 and the deformed wing 2 are used, respectively. Instead of being fixed to the crossbars 3 and 4 adjacent to the end, they are fixed to the crossbars 3 and 4 at a slight interval.

FIG. 5 shows a case where the deformed wing 2 has a curved shape, and the upper and lower ends of the vertical wing 1 and the deformed wing 2 are adjacent to each other. This is a case where they are fixed to the crossbars 3 and 4 adjacent to each other.

FIG. 6 shows an alternate combination of deformed wings 2 having two bent portions in opposite directions instead of using the vertical wings 1. FIG. 7 shows a straight wing arranged at a bevel. Deformed feather 2
Are alternately combined in the opposite direction.

The configuration of the reed dent is not limited to the above, and various embodiments can be employed within the scope of design change.

[0017]

As described above, in the reed for a loom of the present invention, the interval between adjacent reeds at the center of the reed is kept substantially equal, and the upper end or lower end of the reed. The warp splicing is performed on the loom, and the knots of the old and new warp yarns formed in line with the warp row are simultaneously reeded. Even if it enters between the wings, the knot will pass through the upper end portion or the wide end portion at the lower end portion, and a stable operation without a risk of thread breakage becomes possible.

[Brief description of the drawings]

FIG. 1 is a partially enlarged view of a reed wing according to an embodiment of the present invention.

FIG. 2 is a partially enlarged view of a reed wing according to another embodiment.

FIG. 3 is a partially enlarged view of a reed wing according to another embodiment.

FIG. 4 is a partially enlarged view of a reed wing according to another embodiment.

FIG. 5 is a partially enlarged view of a reed wing according to another embodiment.

FIG. 6 is a partially enlarged view of a reed wing according to another embodiment.

FIG. 7 is a partially enlarged view of a reed wing according to another embodiment.

FIG. 8 is an explanatory view showing a state in which a warp is passed using the reed shown in FIG. 1;

FIG. 9 is an explanatory diagram showing a state where a knot is passed through using the reed wing shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vertical wing 2 Deformed wing 3 Upper rung 4 Lower rung

Claims (2)

[Claims] An interval between adjacent reeds at a central portion of the reed is kept substantially equal, and an interval between reeds at an upper end or a lower end of the reed is larger than an interval at the central portion. A reed for a loom, characterized by comprising: 2. The reed for a loom according to claim 1, wherein said reed wings are arranged such that vertical wings and deformed wings are alternately arranged.