JPS6321588Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a warp control mechanism for a hand loom, particularly one that controls warp threads for pattern weaving.

<Prior art> In handlooms, every other warp yarn is restrained with heddles,
The weft is formed by passing the weft between the constrained warp and the unconstrained warp while alternately moving the constrained warp upward and downward by operating the heddles.

In this case, if every other warp thread is restrained regularly, a uniform texture in which every other warp thread and weft thread intersect vertically, a so-called plain weave, is formed.

On the other hand, if the warp threads are restrained in an irregular shape, for example, if three warp threads are restrained in a row, then one warp thread is restrained, and then several warp threads are restrained in succession, the weft threads will skip over multiple warp threads, resulting in a plain weave. A different texture is formed. As a result, a unique pattern can be formed on the woven fabric by appropriately changing the arrangement pattern of the constrained warp yarns and the unconstrained warp yarns.

However, in order to perform such pattern weaving, a warp control mechanism is needed that allows the warp to be freely selected between constrained and non-constrained, and also allows the combination of constrained and non-constrained to be arbitrarily changed during the weaving process. Is required.

As this warp control mechanism, a multiple cam type and a comb tooth type are conventionally known.

The former multiple cam type is Utility Model No. 58-95899.
It is described in the above publication, and a number of cams corresponding to the number of warp threads are held in a stacked manner by two through bolts. Each cam is formed with a cam portion that pushes the warp threads. Further, each cam has a plurality of bolt through holes arranged in a circle. Thereby, by individually selecting the through holes through which the through bolts are inserted for each cam, it is possible to freely and variably set the combination pattern of warp yarn restraint and non-restriction, that is, the warp yarn control pattern.

In addition, the latter comb-teeth type is one in which a comb-like member integrally formed with teeth for pushing the warp threads in a predetermined arrangement pattern is screwed to the heald, and there are multiple types with different patterns in advance. If this is prepared, the arrangement pattern of bound warp yarns and non-constrained warp yarns, that is, the control pattern of the warp yarns, can be changed simply by replacing the warp yarns.

<Problems to be solved by the invention> However, with the warp control mechanism using the former method, every time the warp control pattern is changed, all the cams must be removed from the thread bolts, disassembled and reassembled. The problem was that it was extremely troublesome and complicated.

In addition, the warp control mechanism based on the latter method has the problem that the types of warp control patterns are limited and a large number of comb-like members must be prepared in order to weave a variety of patterns. Ta. Furthermore, since the comb-like member is screwed, it is troublesome to attach and detach it.

<Means for solving the problem> The purpose of this invention is to solve the above-mentioned problems, and as a means to achieve this purpose, it is a support that is attached to the heald of a handloom in the width direction. It has a shaft and a large number of tooth members attached to the support shaft in a comb shape to restrict the movement of the warp threads from one direction, and the attachment state of each tooth member to the support shaft is configured to be variable. It is characterized by the presence of

<Function> By means of the above means, the warp control pattern for pattern weaving can be easily changed with a simple operation, which allows pattern weaving to be performed efficiently and allows for a large number of combinations of control patterns. This allows you to freely weave a wide variety of patterns.

<Example> Hereinafter, a preferred example of this invention will be described based on the drawings.

In each figure, the same reference numerals indicate the same or corresponding parts.

First, FIG. 1 schematically shows a warp control mechanism for a handloom according to an embodiment of this invention.

In FIG. 1, a hand loom equipped with a warp control mechanism is composed of a heddle 4, a distaff 5, a cloth winding rod 6, and the like.

A large number of warp threads 1 and 2 are arranged between the thread winding pin 5 and the cloth winding pin 6.
They are also strung up in a state where they are lined up at regular intervals. Among the large number of warp threads 1 and 2, every other warp thread 2 is restrained by the heddles 4. That is, the constrained warp yarns 2 and the non-constrained warp yarns 1 are arranged alternately.

A texture is formed by passing the weft thread 3 while manually moving the heddles 4 in the vertical direction (in the direction of arrow A). This weave is pushed toward the cloth wrapping rod 6 side by a reed (not shown), and as a result, the cloth 30
is formed.

Here, a warp control mechanism 7 is attached to the heald 4. This warp control mechanism 7 moves together with the heddles 4 to selectively restrain the unconstrained warp 1. The warp yarns 1 restrained by the warp control mechanism 7 are pushed down together with the restrained warp yarns 2 when the healds 4 move downward. As a result, the warp control pattern changes from a plain weave pattern to a patterned weave pattern, making it possible to form a unique weave pattern on the woven cloth 30.

FIG. 2 shows the warp control mechanism 7 and its installed state.

First, the heald 4 to which the warp control mechanism 7 is attached has thread passing holes 12 for restraining every other warp thread, and slits 11 for releasing unrestrained warp threads.
are formed alternately.

Next, the warp control mechanism 7 includes a support shaft 8, a large number of tooth members 10, a knob 9, and the like.
The support shaft 8 is pressed by a leaf spring 13 to the boss portions at both ends of the heald 4 and is detachably fixed thereto.

The plate spring 13 is attached to a screw 14 as shown in FIG.
The free end side holds down the support shaft 8 so as to embrace it. As shown in FIG. 4, the part where the support shaft 8 is pressed by the spring 13 has
Cutout surfaces 81 are formed on two opposing surfaces. As shown in FIG. 3, the support shaft 8 is stably positioned and fixed at a position where the cutout surface 81 matches the elastic surface of the leaf spring 13.

As shown in FIG. 2, the support shaft 8 can be moved in the axial direction (direction of arrow B) and rotational direction while resisting the elastic force of the leaf spring 13 by operating the knobs 9 at both ends thereof. I can do it. Further, it is also possible to easily attach and detach the leaf spring 13 in the direction of arrow C while pushing up the plate spring 13.

The tooth members 10 are each attached to the support shaft 8 in a comb shape. Each tooth member 10 is
The shape is such that the warp yarn passing through the slit 11 can be positioned from above.
The attachment state of each tooth member 10 to the support shaft 8 is configured to be variable. Thus, any of the tooth members 10 may be placed in the opposite inactive position, as shown in FIG. 2, for example.

Here, FIGS. 5, 6, and 9 show how the support shaft 8 and the tooth member 10 are attached. Also,
7 and 8 show a part of the support shaft 8. FIG. Furthermore, FIGS. 10 and 11 show the tooth member 10 described above.

As shown in FIGS. 7 and 8, the support shaft 8 has cutout surfaces 8a and protrusions 8b alternately formed. The cutout surfaces 8a are formed on four surfaces around the support shaft 8.

On the other hand, as shown in FIGS. 10 and 11, the tooth member 10 has a pair of curved grip portions 10a, 10a integrally formed at its base.
The gripping portions 10a, 10a each have elasticity, and are adapted to be elastically pushed apart in the direction of arrow D by an expanding force from inside. Further, a groove portion 10b is formed between the pair of grip portions 10a, 10a.

As shown in FIGS. 5, 6, and 9, the tooth member 10 is attached to the support shaft 8 in a comb-like manner by a pair of gripping portions 10a, 10a. At this time, the rotational position of the tooth member 10 relative to the support shaft 8 is determined by the notch surface 8a as shown in FIGS. 6 and 9.
Positioned by. In addition, in the axial direction of the support shaft 8, as shown in FIG.
b.

Furthermore, due to the elasticity of the gripping parts 10a, 10a, the mounting angle of the tooth member 10 with respect to the support shaft 8 is as follows.
As shown in FIG. 9, it can be varied stepwise. In this case, the stable position of the installation angle is
The cutout surface 8a allows the cutout to be obtained every 90 degrees. In other words, the angle at which the tooth member 10 is attached to the support shaft 8 can be varied in steps of 90 degrees. As a result, each tooth member 10 is in a first state in which it is tilted downward with respect to the surface of the heald, a second state in which it is upright in a vertical direction,
and a third state in which it falls upward. And the first
Even in this state, the warp threads are regulated from above. Furthermore, in the second state, the protrusion 8b can slip through the groove 10b, thereby allowing the tooth member 10 to move in the axial direction of the support shaft 8. Furthermore, in the third state, the tooth member 10 moves away from the position regulating the warp threads,
This makes it possible to selectively release the warp from being restrained by the tooth members 10. That is, the tooth member 1
0 can be left inactive.

As described above, the attachment state of each tooth member 10 to the support shaft 8 can be individually varied. Further, rotating the support shaft 8 itself and removing and attaching the support shaft 8 from the heald can be easily performed by a single operation.

12 and 13 show an example of the operation of the warp control mechanism 7 described above.

First, an arbitrary warp control pattern is set by selectively operating the attachment state of the tooth member 10 to the support shaft 8 for each tooth member. This operation can be performed either with the support shaft 8 attached to the heald 4 or with it removed from the heald 4.

Here, as shown in FIG. 12, when the heald 4 is lifted upward (in the direction of arrow A) relative to the machine frame 20, only the restrained warp 2 passing through the threading hole 12 of the heald 4 is lifted upward along with the heald 4. be pushed up. Even in this state, the warp threads are divided into two groups (upper and lower) (2 and 1
A weft thread (not shown) is inserted between a and 1a).

In addition, as shown in Fig. 13, the heald 4 is attached to the machine frame 2.
When pushed down relative to 0, the warp threads 1a at positions corresponding to the tooth members 10 that have been pushed down are pushed down together with the warp threads 2 restrained by the healds 4. As a result, the warp threads 1a, 1b, 2 are vertically divided irregularly or asymmetrically. In the illustrated example, it is divided into a group of warp threads 2 and 1a and a group of warp threads 1b. Weft threads (not shown) are inserted between these two warp thread groups 2, 1a and 1b.

By repeating the above operations, irregularly shaped textures different from plain weave are formed. moreover,
When forming the irregular weave, the spindle 8 is moved in the axial direction (width direction of the heald 4) using the knob 9, for example.
By adding operations such as moving it to , or attaching and detaching the support shaft 8, it becomes possible to arbitrarily change the formation state of the weave and form a wide variety of weaving patterns.

As described above, it is possible to arbitrarily form a wide variety of textures by changing the control pattern of the warp threads.What should be noted here is that the control pattern of the warp threads by the mechanism 7 is By individually variably setting the attachment state of the member 10 to the support shaft 8, an almost infinite variety of combinations can be obtained. Furthermore, each control pattern can be set extremely easily by simply rotating and moving the tooth member 10. This makes it possible to easily weave cloth with various weave patterns.

Furthermore, as shown in FIGS. 14 and 15, the control mechanism 7 can be easily activated or deactivated simply by rotating the support shaft 8.

That is, the warp control state as shown in FIG. 14 and the warp control release state as shown in FIG. 15 can be alternated as appropriate. This makes it extremely easy to mix patterned weave and plain weave as appropriate.

<Effects of the invention> As is clear from the description of the embodiments above, the warp control mechanism for a handloom according to this invention can easily and variously vary the warp control pattern even with a relatively simple configuration. This brings about the effect that a wide variety of textures can be efficiently formed.

Although the warp control mechanism of the above embodiment is applied to a horizontal hand loom, similar effects can be obtained when applied to other types of hand looms, such as vertical hand looms.

[Brief explanation of the drawing]

FIG. 1 is an abbreviated side view showing an outline of a handloom to which a warp control mechanism according to this invention is applied, and FIG. 2 is a front view showing an example of a heald to which a warp control mechanism according to an embodiment of this invention is installed. FIG. 3 is a sectional view showing the part where the control mechanism is attached to the heald, FIG. 4 is a sectional view showing the part where the support shaft, which is part of the mechanism, is attached to the heald, and FIG. 6 is a sectional view of the - portion of FIG. 5, FIG. 7 is a front view of a part of the support shaft, and FIG. 8 is a sectional view of the - part of FIG. 7. FIG. 9 is a sectional view showing how the tooth member is attached to the support shaft; FIG. 10 is a side view of the tooth member; FIG. 11 is a front view of the tooth member; 13 are front views for explaining an example of the operation of the warp control mechanism, and FIGS. 14 and 15 are front views for explaining another example of the operation of the warp control mechanism. 1... warp (unrestrained warp), 2... warp (restricted warp), 1a... warp controlled and constrained by the warp control mechanism, 1b... warp not controlled and constrained by the warp control mechanism, 3... Weft, 4... Heald, 5... Distaff, 6... Cloth winding rod, 30... Woven cloth, 7... Warp control mechanism, 8... Support shaft, 81...
Notch surface, 8a... Notch surface, 8b... Projection, 9...
...knob, 10... is member, 10a... gripping part, 1
0b...Groove, 11...Slit for letting the warp threads escape,
12... Threading hole of the heald 4, 13... Leaf spring supporting the spindle 8, 14... Screw, 20... Machine frame.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a warp control mechanism that controls the movement of warp threads in conjunction with the heddles of a handloom in order to perform pattern weaving, a thread passing hole that restrains the warp threads and a mechanism for releasing the unrestrained warp threads. Healds with alternating slits,
It has a support shaft attached to the heald in its width direction, and a large number of tooth members attached to the support shaft in a comb shape to restrict movement of the warp from one direction, and the support shaft of each tooth member. A warp control mechanism for a handloom loom, characterized in that the attachment state to each of the threads is variable. (2) The warp control mechanism for a hand loom according to claim 1, wherein the support shaft is mounted so as to be movable in both the axial direction and the rotational direction.