JPH0362811B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Technical Field> The present invention relates to a structure for attaching a heald used as a shedding device of a loom to a heald frame.

<Prior Art> In a loom, one heddle that controls the shedding movement of warp threads is provided for each warp thread, and each heald that performs the same movement is attached to the same heald frame.

As a conventional structure for attaching healds to a heald frame for the purpose of weight reduction and noise reduction, for example, Japanese Patent Application Laid-open No. 58-
There is one shown in Publication No. 36235.

To explain this in detail with reference to Figures 1 to 3, the heald 1 is made of aluminum and consists of upper and lower cross beams 2 and left and right side frames 3, and the upper and lower cross beams 2 have tapered locks on the opposing surfaces. A groove 4 is formed. The locking groove 4 has a fitting hole 5 with a rectangular cross section extending in the longitudinal direction of the cross beam 2;
A slit 6 connected to this and opened on the opposing surface
, and both sides of the slit 6 are locking portions 7a, 7.
It becomes b.

In the vicinity of the ends of the upper and lower cross beams 2, a notched groove 8 is formed which is cut out from the opposing surface side, penetrates in the front-rear direction, and crosses the locking groove 4.
The notched groove 8 is closed by the tip of a substantially Z-shaped closing piece 10 fixed to one side frame 3 with a screw 9.

The heald 11 has a mail hole 12 for inserting the warp threads in the middle part of a plate-shaped metal member made of stainless steel or the like, and plastic or hard rubber is integrally molded at both ends (holes are formed to prevent slippage). A substantially rectangular mounting portion 13 is formed for fitting into the fitting hole 5 of the locking groove 4.

Therefore, when attaching the heald 11 to the heald frame 1, with the closing piece 10 removed, the mounting portion 13 of the heald 11 is inserted into the cutout groove 8 of the cross beam 2, and the locking groove 4 is fitted. When it matches the matching hole 5, shift it in the longitudinal direction of the cross beam 2 and install it. When all the fittings are completed, the tip of the closing piece 10 is inserted into the cutout groove 8 to close it, and the screw 9 is secured.

With this mounting structure, the number of parts is reduced and the weight is reduced, and when the mounting portion 13 of the heald 11 comes into contact with the inner surface of the locking groove 4, especially the locking portions 7a and 7b, the mounting portion made of a cushioning material is removed. No. 13's buffering effect suppresses the generation of sound and reduces noise. Incidentally, it is preferable that the cushioning material portion of the mounting portion 13 be extended to the slit 6 to eliminate metal-to-metal contact even at the slit 6 in order to reduce noise.

Also, when the density of the heald 11 is small, the heald 11
In order to prevent the heald 11 from rotating about its axis and falling out of the slit 6, the slit 6 of the fitting hole 5 of the locking groove 4 of the cross beam 2 is arranged to restrict the rotation of the heald 11 about its axis. A protrusion 14 is formed in the longitudinal direction on the opposite side, while a groove 15 that fits into the protrusion 14 is formed in a part of the mounting portion 13 of the heald 11. Therefore, the rotation of the heald 11 around the axis is restricted by the groove 15 of the mounting portion 13 fitting into the protrusion 14.

However, when the heald 11 is forcibly shifted to the side to repair a warp break, it may be subjected to a strong twist. When the mounting part 13 is twisted in this way, if it is made of plastic with a thickness of about 1 mm, it will bend and rotate due to the protrusion 15, become parallel to the slit 6, and rarely fall off. It was hot.

<Object of the Invention> In view of such conventional problems, an object of the present invention is to more reliably prevent the healds from falling off.

<Structure of the Invention> For this reason, the present invention provides that the locking walls of at least one of the locking portions on both sides of the slit of the locking groove are adjusted so that as the locking wall approaches the slit, the surface of the locking groove on the side opposite to the slit is The heald is formed into an inclined surface facing toward the slanted surface, and a portion of the heald mounting portion opposite to the slanted surface is formed into a similar slanted surface.

<Example> Examples will be described below.

4 and 5 show one embodiment, and the same parts as in FIGS. 2 and 3 are given the same reference numerals.

To explain the different parts, the locking part 7a,
The locking walls 16a, 16b of
The inclined surface 16a, 1 approaches the surface opposite to the
6b. The mounting portion 13 also has portions facing the inclined surfaces 16a, 16b formed into inclined surfaces 17a, 17b parallel to these.

According to this configuration, when the heald 11 and therefore the attachment part 13 rotate, it rotates along the inclined surfaces 16a and 16b, so that the end surface of the attachment part 13 is opposite to the slit 6 of the fitting hole 5. Press against the side surface. This restricts the rotation of the attachment part 13, and since it is restricted by the surface, it becomes difficult to deform. Therefore, further deformation can be prevented and the heald 11 can be prevented from falling off.

FIG. 6 shows another embodiment.

This embodiment has ridges 14 and grooves 15, as well as inclined surfaces 16a, 16b, 17a, 17.
b is provided, and this is more preferable.

Incidentally, an inclined surface is formed on either one of the left and right locking portions 7a, 7b, and the mounting portion 13 facing this
A similar effect can be obtained even if a part of the surface is made into an inclined surface.

<Effects of the Invention> As explained above, according to the present invention, it is possible to more reliably restrict the rotation of the heald around the axis, prevent the heald from falling off, and suppress deformation of the heald, thereby improving durability. do.

[Brief explanation of drawings]

Fig. 1 is a front view showing a conventional example of a heald mounting structure on a heald frame, Fig. 2 is a sectional view taken from the side shown in Fig. 1, Fig. 3 is a sectional view taken from the side shown in Fig. 2, and Fig. 4 is a sectional view according to the present invention. FIG. 5 is a sectional view showing one embodiment of FIG.
Cross-sectional view, FIG. 6 is a cross-sectional view showing another embodiment. 1... Heald frame, 2... Cross beam, 4... Locking groove,
5... Fitting hole, 6... Slit, 7a, 7b...
Locking part, 11... Heald, 13... Mounting part, 14...
...Protrusion, 15...Groove, 16a, 16b, 17a,
17b...Slope surface.

Claims (1)

[Claims] 1 Attachment parts 1 made of cushioning material at both ends of the heald 11
3, and the mounting portions 13 are fitted into locking grooves 4 formed narrowly in the upper and lower cross beams 2 of the heald frame 1 through slits 6 to lock them.
In the structure for attaching the heald 11 to the heald 11, the locking wall of at least one of the locking portions 7a, 7b on both sides of the slit 6 of the locking groove 4 is moved closer to the slit 6, and The heald is characterized in that slopes 16a and 16b are formed facing the opposite side, and similar slopes 17a and 17b are formed at portions of the mounting portion 13 that face the slopes 16a and 16b. Mounting structure of healds on frame 1.