JPH0623584Y2 - Intermediate support member for heald frame of loom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an intermediate support member used for suppressing flexural deformation of a heald frame of a loom during operation.

<Prior Art> When the heald frame is reciprocally moved up and down along with the operation of the loom, the heald frame is largely and flexibly deformed. This flexural deformation occurs in all parts of the heald frame, and the main deformation therein is that the upper and lower frame staves are curved to form a convex shape as shown in FIG. 13 (a), or as shown in FIG. 13 (b). It is a repetitive deformation that repeats such a concave shape. Generally, this deformation is greater for longer weave widths and higher speeds. Then, when this deformation becomes large, an excessive tensile force acts on the healds stretched between the carrier rods of the upper and lower frame staves, and the healds are broken. Therefore, conventionally, an intermediate stay is used for a long heald frame having a length of 280 cm or more, and a measure for connecting the above frame staves with the intermediate stay to suppress deformation of the frame stave is generally adopted. There is. This conventional intermediate stay usually has a structure as shown in FIG. 12, and the material of the intermediate stay 30 is usually made of metal such as aluminum alloy or stainless steel. Also, this intermediate stay 3
As shown in the drawing, a cutout 31 is formed at 0 for passing the carrier rod.

<Problems to be Solved by the Invention> However, since the conventional intermediate stay 30 is made of metal,
Since it is poor in flexibility, if it is repeatedly subjected to tension and compression, metal fatigue accumulates and finally breaks at the notch 31 to cause a breakage accident. Also, this breakage is more likely to occur when a compressive force is applied than when a tensile force is applied,
That is, the intermediate stay 30 is broken due to the buckling deformation received by the intermediate stay 30. This is not only the magnitude of the compressive force, but the heald frame is deformed in a complicated manner during operation, so the compression directions of the upper and lower frame staves often differ from each other, which is likely to cause buckling. There is. As described above, the conventional metal intermediate stay 30 is prone to breakage accidents, and is particularly prominent in a heald frame having a large deformation such as a long weaving width or high speed operation.

In view of the above, the present invention provides an intermediate support member that does not cause a breakage accident even when used in a high speed loom or a long width loom.

<Means for Solving the Problems> The technical means of the intermediate support member of the present invention is not stretched in the pulling direction and has flexibility, and is stretched between the frame staves of the heald frame or between the carrier rods. It is to be attached and used.

It is also possible to connect and fix both ends of the intermediate supporting member to the frame stave or the carrier rod by using end fixing tools.

<Operation> The intermediate support member of the present invention is mounted so as to be bridged between the upper and lower frame staves of the heald frame or between the upper and lower carrier rods. Since the intermediate support member does not extend in the pulling direction, the heald frame is prevented from being deformed as shown in FIG. 13 (a). Also, (a)
As a result of being prevented from being deformed to (b), the deformation to (b) caused by the reaction is significantly suppressed. Further, since the intermediate support member has flexibility, even if the intermediate support member is deformed in the (b) direction, the intermediate support member does not buckle and is absorbed by the flexibility of the material. The support member does not break. As described above, by using the intermediate support member of the present invention, it is possible to suppress the deformation of the heald frame during operation, prevent the heald from breaking, and prevent the heald frame from shaking or vibrating. Further, the intermediate support member of the present invention can be used not only for a long one having a weaving width of 280 cm or more, but also for a high-speed one having a weaving width of about 200 cm to obtain excellent effects.

<Embodiment> An embodiment of the intermediate support member of the present invention will be described with reference to the drawings. The heald frame 1 is composed of a frame stave 2 constituting upper and lower frames and side stays 3 constituting left and right frames.
The carrier rod 4 is attached to the upper and lower frame staves 2 by a carrier rod support 5. 6 is a heald, which is hung between the upper and lower carrier rods 4.
Reference numeral 7 is a guide plate attached to the frame stave 2.

Reference numeral 10 denotes an intermediate support member, which is attached so as to be bridged between the upper and lower frame staves 2. Reference numeral 11 is an end fixing tool. One intermediate support member 10 is attached to the central portion of the heald frame 1, or a plurality of intermediate support members 10 are attached at appropriate intervals, if necessary. Further, when the intermediate support member 10 is attached, it can also be provided in a laterally asymmetrical position, with the role of suppressing vibration (resonance) of the heald frame 1 as well as deviating from the center.

The intermediate support member 10 needs to act only on the force in the pulling direction, and does not have to act on the force in the compressing direction. Therefore, the material has no elongation and is a flexible material, for example,
Reinforced rope with Kevlar, rubber or synthetic resin fine rod with carbon fiber, and flexible metal wire are suitable. This intermediate support member 10 is used for the upper and lower frame staves 2.
Since it can be stretched so as to withstand a tensile force, the means for connecting and fixing the end of the member and the frame stave 2 and the like are free, and various means can be adopted. Typical examples of the connecting and fixing means are shown below.

Shown in FIGS. 2 and 3 is an example of connecting and fixing means for a normal open type heald frame.
This is a method in which a loop 12 is formed at an end of the intermediate support member 10 and a support pin 13 is inserted into and fixed to the loop 12. The support pin 13 can be inserted into and removed from the end fixture body 14, and a force is applied to the support pin 13 in the insertion direction by the action of the spring 15. The end fixture main body 14 is fixed to the frame stave 2 with bolts 16. 17
Is a nut member inserted in the frame stave 2. Reference numeral 18 denotes an attachment auxiliary member fitted into the attachment edge portion of the frame stave 2.

Shown in FIGS. 4 and 5 is an example of connecting and fixing means for a riderless type heald frame. The type of the end fixing device is almost the same as that of FIG. 2, but the axis of the bolt 16 is inclined so that it is convenient for tightening work.

The type shown in FIGS. 6 and 7 is a type in which the end of the intermediate support member 10 is wound around and fixed to the notch 20 of the end fixture body 14 without using the detachable support pin system.
Therefore, both members are inseparable and the end fixture body 1
The intermediate support member 10 is attached and detached by attaching and detaching 4 to and from the frame stave 2.

The method of treating the end portion of the intermediate support member 10 is arbitrary. For example, a method of forming the loop 12 and stopping with a string 21 or an adhesive as shown in FIG. 8 or a pin hole 23 as shown in FIG. It is possible to freely adopt a method of attaching the metal fitting 22 having a to the end.

FIG. 10 shows an intermediate support member 10 bridged between the carrier rods 4. In this case, the deformation prevention force cannot be increased, but for objects with a relatively low operating speed or short weaving width, the object can be sufficiently achieved by loading between such carrier rods. is there. FIG. 11 shows an example of a method of connecting to the carrier rod 4, and here, a method of hooking the carrier rod 4 by a hook 24 is adopted.

Further, when attaching the intermediate support member 10, it is possible to use the carrier rod support tool 5 as an end fixing tool. That is, the carrier rod support 5 (also referred to as a middle hook hanger) usually has a two-piece structure including a hook portion for inserting and holding the carrier rod and a base portion attached to the frame stave, and both of them are detachable. Has become.
Therefore, using this base as it is, the intermediate support member 10
A connecting tool having the same shape as the connecting portion of the hook portion is attached to the end of, and this is joined to the base portion. Therefore, in this case, the end fixture 11 is not necessary, which is convenient in practice.

The results of the deformation test during operation of the heald frame equipped with the intermediate support member of the present invention and the heald frame without the intermediate support member were as follows. In addition, the measurement was performed by measuring the magnitude of the shake of the central portion when deformed as shown in FIGS. 13 (a) and 13 (b). The operating speed was 800 RPM.

With no intermediate support member attached: (a) runout +5 mm (b) runout -3 mm Intermediate support member installed: (a) almost no runout (b) runout -1 mm Also from this test result As can be seen, by preventing the deformation to (a), the deformation to (b) can be significantly suppressed. Usually, it is possible to reduce the deformation to (b) to 1/3 to 1/4.

In the present invention, the material and the shape of the intermediate support member 10 are free, and the attachment means to the frame stave can be freely adopted, and the intermediate support member 10 can be hung between the carrier rods. Is.

<Effect of the Invention> By using the intermediate support member of the present invention, it is possible to prevent deformation of the heald frame during operation, prevent the heald from breaking, and prevent vibration of the entire heald frame. Also,
The intermediate support member of the present invention is lighter in weight than the conventional intermediate stem, has good handling operability, and is highly durable with no risk of seat bending loss, which is excellent for increasing the speed of the loom. To do.

Further, by using the end fixing device, the attaching / detaching operation of the intermediate supporting member becomes easy.

[Brief description of drawings]

An embodiment of the intermediate support member of the present invention is shown in the drawings, FIG. 1 is a front view in a state of being attached to a heald frame, FIG. 2 is an enlarged view of a partial cross section of an end connecting portion, and FIG. III-I in the figure
II line sectional view, FIG. 4 is an enlarged view of a partial cross section of an end connecting portion of another embodiment, FIG. 5 is a VV line sectional view of FIG.
FIG. 7 is an enlarged view of an end connecting portion of still another embodiment, FIG. 7 is a sectional view taken along line VII-VII of FIG. 6, and FIGS. 8 and 9 are embodiments of an end processing means of an intermediate support member. FIG. 10 is a front view of an embodiment hung between carrier rods, FIG. 11 is a perspective view of a partial cross section showing a connecting means with the carrier rod, and FIG. 12 is a side view of a conventional intermediate stay. FIGS. 13 (a) and 13 (b) are front views showing a deformed state of the heald frame during operation. 1 ... Held frame, 2 ... Frame stave, 3 ...
... side stays, 4 ... carrier rod, 5 ... carrier rod support, 6 ... heald, 10 intermediate support member, 1
1 ... End fixture, 12 ... End loop, 13 ... Support pin, 14 ... End fixture body, 15 ... Spring, 16
...... Bolts, 17 ...... Nut members, 18 ...... Mounting auxiliary materials, 20 ...... Cuts, 21 ...... Strings, 22 ...... Metal fittings, 2
3 ... pin hole, 24 ... hook.

Claims (2)

[Scope of utility model registration request] 1. An intermediate support member for a heald frame of a loom, which is not stretched in a pulling direction and is flexible and is mounted so as to be hung between frame staves of a heald frame or between carrier rods. . 2. The intermediate support member for a heald frame of a loom according to claim 1, wherein both ends of the intermediate support member are connected and fixed to a frame stave or a carrier rod by end fixing members.