JPS62238843A - Fabric like heat generator, and method and loom for weaving the same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention involves weaving temperature detection lines in a stroke-like manner into a textile-like heating element woven by a loom with a normal configuration, or by weaving a thread-like heating element into a fabric. This invention relates to a woven fabric whose body is woven in a single stroke pattern, a weaving method thereof, and a loom.

[Prior art]

The objects to which the present invention is applied include planar heating elements such as electric blankets and electric carpets. As is well known, these heating elements are required to be flexible, and various types of heating elements have been used heretofore.

For example, a heating wire made by winding an extremely thin resistance wire spirally around a flexible synthetic resin filament as a core is sewn onto a blanket in a meandering manner, or carbon particles are attached to a resin binder on cloth, sheets, etc. There are some that are fixed in place. However, these planar heating elements have the drawback of poor mechanical performance such as flexibility, bending resistance, and abrasion resistance.

In this regard, progress is being made in the development of thread-like heating elements in which carbon particles are fixed to threads with a flexible resin binder, but this material is extremely flexible and has excellent mechanical properties as described above. Therefore, a sheet heating element woven into a fabric using this thread-like heating element is suitable for electric blankets and other heating devices, and many applications are expected to be developed in the future.

By the way, the conventional method for controlling the temperature of such a fabric-like planar heating element is to mold a resin such as nylon 12 whose resistance value changes depending on the temperature into a filament around the electrode wire, and then attach a metal wire around the outer periphery of the resin. A temperature detection line (hereinafter, a temperature detection line with this configuration is referred to as a thermistor line) was sewn into a predetermined location. For this reason, a step of sewing the thermistor wire is added to the step of manufacturing the cloth-like planar heating element, resulting in an increase in the number of manufacturing steps. If this thermistor wire could be woven into the fabric at the same time as the fabric-like sheet heating element, it would greatly contribute to improving productivity, and other fields of application can be considered. There were no looms.

[Purpose of the invention]

The present invention was made to solve the above problems, and includes a novel fabric-like heating element in which a temperature detection line for temperature detection is woven into the heating surface of the fabric-like sheet heating element. The object of the present invention is to provide a weaving method and a loom for the weaving.

[Structure of the invention]

The structure of the woven heating element of the present invention for achieving the above object is such that, in a woven woven fabric made of warps and wefts, a woven heating element and a temperature sensor are installed at predetermined positions of the woven fabric. A type of filament selected from the line intersects with the weft, and its weaving position is at an arbitrary position in the weft direction, and in the warp direction, it is woven into the weft one or more stitches ahead in the weaving direction. It is characterized by the fact that

When the present invention is applied to a woven heating element in which temperature detection lines are woven, the warp and weft may be provided with thin nichrome wires, filamentous heating elements, or other appropriate heating lines at predetermined positions, or as needed. The method is carried out using a cloth-like material with electrode wires arranged thereon.

Further, the structure of the invention of the method for manufacturing the novel textile-like heating element is such that, in the weaving process of the warp and weft, (a) a kind of filament body selected from the filament-like heating element and the temperature detection wire is placed at the weaving start position; (c) a step of bending the filament body in a U-turn around the position where the shuttle passes and inserting the filament body from between one of the two warp sheets having two open warp sheets; After the shuttle has passed, the step of pulling up the third thread, intersecting it with the weft, and weaving it into the fabric body being woven; The method is characterized in that the steps of bending and inserting in a U-turn and weaving the third thread into the woven fabric body are repeated, and this step is then repeated one after another.

Further, the configuration of the apparatus of the present invention for carrying out the above manufacturing method includes a device for weaving into a fabric shape and a device for weaving the filamentous bodies; (1) The filament leave insertion device comprises an insertion device for the filament and a feeding device for moving the insertion device in the weaving width direction; When the device reaches the weaving position of the filament body, the device guides the third yarn in a shape such that it passes through one of the two open warp sheets and makes a U-turn around the shuttle passing position. , and is characterized in that after passing the shuttle, it returns to its original position and pulls up the third thread.

When carrying out the method and apparatus of the present invention, the third thread may be formed into a U-turn shape in advance and inserted between the open warp sheets as the means for guiding it into the U-turn shape. , it may be inserted and then expanded to surround the shuttle passage position.

〔Example〕

The present invention will be specifically described below using examples in which the woven fabric of the present invention is implemented by weaving a thermistor wire into a fabric-like sheet heating element.

Now, FIG. 1 is a diagram showing an outline of the fabric-like heating element 1 obtained in this example, and details of the warp and weft are omitted to simplify the diagram. In the figure, the warp uses thread 2 made of polyester fiber and electrode wires 3 placed at both ends of the cloth, and the weft uses:
A heating wire (not clearly shown) and a yarn made of polyester for adjusting the heating value were used.

The heating wire used was a filament in which a thread made of polyester fiber was used as a core thread, and a carbon particle layer in which carbon particles were dispersed in a synthetic resin was provided thereon.

In addition, the above-mentioned thermistor wire was used as the thermostat used in this example.

As shown in FIG. 2, the thermistor wire 4 is interwoven with the weft, and as shown in FIG. The woven heating element is brought close to the woven heating element so as to be easily connected to the woven heating element, and extends outward from the woven heating element to form a free end. In this embodiment, a thermistor wire for temperature detection is woven into the fabric of the sheet heating element on the opposite side for each unit heating element planned in advance, so that it can be cut and used separately when used for electric blankets or other purposes. It is configured.

As is clear from FIG. 1, the characteristic of the weaving shape of the thermistor wire 4 is that in the weft direction, the weaving position can be taken freely within the range permitted by the flexibility of each thread used, but in the warp direction, It must be woven into the weft at a position where the weft has progressed one stitch or more.

The details of the weaving state will be explained with reference to FIG. FIG. 2 is an enlarged view of the part indicated by symbol A in FIG.
A heating wire 6 and a non-conductive yarn 7 intersect with the non-conductive warp 2
are woven in a predetermined weaving order. In this state, the thermistor wire 4 intersects with the weft, and the weaving is carried out sequentially at positions a and b.
, c, and then to the left, and then at position d, it becomes parallel to the warp and is woven into the weft. Therefore, at the weaving position, the warp threads 2 are woven in such a manner that they are interposed between the warp threads 2 adjacent to each other.

Although the figure of the thermistor wire 4 in FIG. 1 depicts a geometric shape, the novel textile heating element 1 of the present invention is not limited to this and can be woven into any shape.

Further, a fabric structure other than plain weave can be used as required.

Method of weaving the thermistor wire> A method of weaving the thermistor wire into the fabric heating element 1 of this embodiment will be described with reference to FIG.

As mentioned above, specific warp threads and weft threads are used, but in the following explanation, these threads will not be distinguished unless necessary and will be expressed as warp threads and weft threads.

Now, when the weaving progresses to the weft Y1 in front of the weaving position a in Fig. 2, (1) The thermistor wire 4 is made into a U-turn shape.
It is inserted between the warp threads T1 and T2 so as to pass through one of the two open warp sheets, and guided to a position where the shuttle can pass through the thermistor wire 4 arranged in the U-turn shape. do.

(2) Next, the thermistor wire 4 is passed through the shuttle.
is pulled up and crossed with the weft Y2.

(3) Next, weaving of the weft yarn Y2 at the weaving position a is completed by the weft operation and the alternating movement of the weft up and down. By applying a predetermined tension when pulling up the thermistor wire 4, it is possible to form a straight line between weaving positions as shown in the weaving pattern shown in FIG.

In this example, since the thermistor wire 4 is made of two strips, there is no problem since the thermistor wire 4 is supported by two bobbins. When tensioning, it is necessary to grasp the end of the thermistor wire 4 to prevent it from coming off.

(4) Next, to the next weaving position in the weaving direction,
By holding the thermistor wire 4 as it is and repeating the operations (1) to (3) at the next position, the thermistor wire can be woven into a predetermined figure.

As is clear from the above explanation, the thermistor wire weaving method of the present invention has no restrictions on the weaving position other than the principle that the thermistor wire is always woven into the weft yarn that has advanced one stitch or more in the weaving direction of the warp yarns. However, the shape that the thermistor wire 4 can draw is naturally limited due to the mechanical properties such as flexibility, thickness, and strength of each thread actually used, but this is a limitation caused by the material used and is not covered by the present invention. It should be noted that this is not an essential matter.

Loom> Fig. 3 shows an outline of the loom of this example. The loom of the present invention comprises a weaving device 10 for the thermistor wire 4 and a weaving device not specifically shown in the figure.

In the figure, only the part of the fabric-like heating element 1 that has already been woven and the part where the warp threads 2 are opened, which are not clearly shown, are shown, and the weaving device includes a shuttle, a reed, and a weaving device.
All descriptions of the yarn beam, cross beam, and other members installed on the ground loom are omitted. Although the weaving device of this embodiment uses a rapier arm shuttle,
The loom of the present invention is not limited to this, and any suitable shuttle can be used.

The thermistor wire 4 weaving device 10 shown in the figure includes a pair of loop arms 121 and 122 housing a mechanism for weaving the thermistor wire 4, and the loop arms 12+ and 12.
2 separately in the weaving width direction.
It consists of two bobbins for winding the thermistor wire, a normal bobbin 14 and a reverse bobbin 15, and a bobbin drive device 16 for storing these ancillary devices (only the bobbin and housing are shown in the figure and the others are omitted). .

The loop arms 12□ and 122 are provided with a yarn feeding device driven by a drive system, as will be explained later, and a needle 17. and 172, and a needle feeding device (not shown). The needle feeding device is a mechanism that moves the needles 171 and 172 up and down, and is constituted by an eccentric mechanism (a mechanism that strokes the guide device up and down).

The needle 17 (hereinafter referred to as such when there is no need to distinguish that there is a pair; the same applies to other members) and its attached members are constructed as shown in FIGS. 4 and 5.

The needle 17 is attached to the loop arm 12 and moves up and down along with the loop arm 12.

It has an elongated shape and has a needle hole 18'' near the tip through which the thermistor wire 4 is passed.This needle hole 18 is made by cutting out the needle 17, and the thermistor wire 4 is passed through this needle hole. Holding plate 1 that can be attached and detached after being placed in the
9 prevents the thermistor wire 4 from coming off.

On the other hand, the ejecting lever 20 for arranging the thermistor wire 4 in a U-turn shape surrounding the weft arranged in the warp sheet 2 by the shuttle has an elongated shape with the same width as the needle 17, and has a tip end. A needle hole 21 similar to the needle 17 is provided nearby, and like the needle 17, a presser plate 24 that is detachable is provided.

The ejection lever 20 is linked to the needle 17 by links 22 and 23, and the needle 17 is connected to the link 22.
The pivot point in this example is connected to a lever 26 that is pivoted by a guide pin 25, and the guide pin 25 is guided by a guide 27 so that it can slide freely. Eject lever 2 by moving
0 is taken in and out of the needle 17.

The arm 231 of the link 23 is urged to return to the needle 17 side by a spring (not shown), and is formed by bending a part of the arm 231 as shown in FIG. The arms 231 and 232 are arranged in a straight line by a presser pin 29 provided on the link 22 from above the presser plate 28, and the needle 17 and the ejecting lever 20 are
The links are supported in parallel, and each arm of the link is arranged above the shuttle passing position 30.

The thermistor wire 4 is connected to the bobbin 14 or 15 according to the movement of the loop arm 12, needle 17 and ejection lever 20.
Also, when the warp sheet 2 is moved in and out of the opening, the warp sheet 2 is pulled out and pulled in. These are driven by drive wheels 31 arranged at various locations from the bobbin 14 or 15 to the needle 17.

The drive wheel 31 shown in FIG. 4 is rotatably supported by the loop arm 12, and is driven by a drive system 32 driven by a motor (not shown) that rotates in both forward and reverse directions. Thermistor wire 4 with driving wheel 33
is held in place and driven in a predetermined direction and speed. As described above, the drive wheels 31 arranged at various locations are connected to one drive system 3.
Since the thermistor wires 2 and 2 are driven simultaneously, the tension on the thermistor wire 4 is maintained uniformly. The tension at this time is managed by a tension controller (not shown).

When inserting the needle 17 into the warp sheet 2, the warp is pushed open using a guide shaped like a sheath so that the needle 17 does not get caught on the warp.

Next, with reference to FIGS. 4 and 5, a description will be given of how the thermistor wire 4 and the shuttle path, and thus the weft, are crossed by the needle 17 and the ejection lever 20.

First, the normal bobbin 14 on which the thermistor wire 4 has been wound is set in the device, and the required length of half of one unit figure in FIG. 1 is wound onto the reverse bobbin 15. Next, the presser plates 19 and 24 of the needle 17 and the ejecting lever 20 are removed, the thermistor wires 4 are passed through the respective needle holes 20 and 21, and the loop arms are returned to their original positions in the weft direction. 12. and 122 to complete the preparation for weaving the thermistor wire 4.

The polyester threads 2 and electrode wires 3 that serve as the warp of the planar heating element 1 are arranged on yarn beams, sheaths, reeds, and cross beams (not shown), and the heating wires and polyester threads that serve as the wefts are shuttled, respectively. and weave it in the same way as when weaving a normal cloth, and when we realize that we need to start weaving the thermistor wire 4 in the weaving direction, we activate the eccentric mechanism and weave the needle 17 (hereinafter we will not distinguish between the pair of devices). ) and the ejection lever 20 are operated. Insert the needle 17 and the ejection lever 20 into the warp sheet 8 in a folded state, and after the ejection lever 21 reaches the opening postal phase, push down the drive lever 26 to eject the ejection lever 20 to the shuttle passing position 30.
After arranging the thermistor wire 4 in a U-turn so as to surround it, passing the shuttle and arranging the weft yarn, that is, the polyester yarn or heating wire according to a predetermined design, the lever 26 is pulled up and the ejecting lever 20 is returned to its original position. After returning to the position, the needle 17 is pulled up and the thermistor wire 4 is crossed over the weft, and then the weft is crossed, and the warp is crossed by a weft to complete the weaving. This operation is sequentially repeated for each predetermined weaving position to complete the weaving.

Modifications of the needle 17 will be explained with reference to FIGS. 6 to 8. In addition, FIG. 7 is a side view of FIG. 6, and the view of the tip thereof is a side view of the needle 17 with the ejecting lever 20 removed, and FIG. 8 is a cross section taken along the line x-X in FIG. It is a diagram.

This example differs from the previous example in that both the needle 17 and the ejecting lever 20 are U-shaped, facing each other as shown in FIG. Two points are that the needles are configured so that they do not come into direct contact, and that the panda graph 31 is provided above the needle 17 so that it is not inserted into the opening 8 of the warp sheet.

The needle holes 18 and 21 in this example are constituted by a partition wall 30 and an outer wall. In this example, the operation for ejecting the ejecting lever is performed by opening the panda graph 31 when the drive lever 26 hits a fixed pin (not shown) when the needle 17 is lowered, and when the needle 17 is rising, The panda graph 31 is configured to be closed by a return spring (not shown).

In addition, when returning to the original position, the top of the guide 31 provided on the ejector lever 2° is designed to enter deeply into the needle 17, and a force may be applied that causes the tips to become misaligned during operation. is also configured to return accurately.

Furthermore, the device of the present invention allows the needle to be inserted into and removed from the warp opening with the needle ejecting lever initially in the protruding shape, and the ejecting lever is not operated by a link but by another drive. For example, the structure can be modified as appropriate, such as a structure in which it is pushed out using a bar.

〔Effect of the invention〕

The woven fabric, the weaving method thereof, and the loom of the present invention can have the following effects.

(1) The woven body of the present invention has the weft of a normal woven fabric crossed with a temperature detection line different from the threads constituting the woven body, and the filament body selected from the filament heating element, and in the weaving direction. By having a structure in which the weft threads intersect one stitch or more ahead, it is possible to provide a new product in which the temperature detection line, which was conventionally obtained by sewing, is integrally woven into the fabric-like sheet heating element.

(2) When producing the above-mentioned woven body of the present invention, a configuration in which the filament is inserted into an open warp sheet and intersected with the weft so as to surround the position where the shuttle passes in a normal weaving process. Therefore, by simply adding the additional means to the conventional weaving means, it is possible to provide, for example, a fibrous sheet heating element in which temperature detection lines are woven.

(3) Since the method for manufacturing the woven fabric of the present invention is as described above, the device for manufacturing the woven fabric of the present invention can move the filament so as to intersect with the weft arranged in the warp opening by the shuttle. It is only necessary to add a device for guiding the loom to a conventional loom, which is greatly advantageous in terms of device manufacturing, worker training, etc.

[Brief explanation of drawings]

FIG. 1 is a plan view for explaining the outline of a textile heating element according to an embodiment of the present invention, FIG. 2 is a partially detailed view of FIG. 1,
FIG. 3 is a perspective view for explaining the outline of a loom according to an embodiment of the novel woven heating element of the present invention, and FIG. 4 is a perspective view for explaining the thermistor wire weaving needle used in the loom of FIG. 3. FIG. 5 is a side view of FIG. 4, and FIGS. 6 to 8 are explanatory diagrams of a needle having a different configuration from FIG. 4. 1... Planar heating element, 4.41.42... Thermistor wire (striated body), 10... Third thread weaving device, 12
, 12+, 122... loop arm, 20...
Ejection lever, 30...Shuttle passing position.

Claims (6)

[Claims] (1) In a cloth-like woven body woven with warp and weft, a kind of striated body selected from a filamentous heating element and a temperature detection wire is crossed with the weft at a predetermined position of the woven body. , the weaving position is any position with respect to the weft direction,
A textile-like heating element characterized in that the weft threads are sequentially woven into the weft threads one stitch or more ahead in the weaving direction with respect to the warp direction. (2) An intermediate position of a kind of linear body selected from one filamentous heating element and a temperature detection line is woven at a weaving start position, and two strips are woven from the weaving start position. A textile heating element according to claim 1. (3) In the weaving process of the warp and weft, (a) the warp sheet opens into two pieces when a type of filament selected from filamentous heating elements and temperature detection lines reaches the weaving start position; (c) After the shuttle has passed, the step of bending the filamentous body in a U-turn from between one of the warp sheets and inserting the filamentous body to a position where the shuttle can pass; (d) At the next weaving position, the step of bending the filamentous body in a U-turn and inserting it; 1. A method for weaving a novel woven heating element, characterized by repeating the step of weaving the filament into a woven material, and then repeating this step in sequence. (4) After weaving an intermediate position of a type of filament selected from a filamentous heating element and a temperature sensing line to a weaving start position, the temperature sensing line is woven into two meandering strips in the weaving width direction. A method for weaving a textile heating element according to claim 3. (5) It consists of a device for weaving into a fabric and a device for weaving a type of filament selected from thread-like heating elements and temperature detection wires; [2] The weaving device for the striated bodies comprises an insertion device for the temperature detection wire and a feeding device for moving the insertion device in the weaving width direction, and the When the weaving position of the filament body is reached, the weaving device guides the filament body through one of the two warp sheets into the opening, and then moves the filament body to the shuttle passing position. A loom for a woven heating element, characterized in that the threaded body is guided so as to make a U-turn surrounding the threaded body, and after passing the shuttle, the threaded body is returned to its original position and pulled up. (6) Equipped with a pair of weaving devices, after weaving a filamentous heating element and a type of filament selected from temperature detection wires into the weaving start position, the filament is meandered in the weaving width direction. A loom for a textile heating element according to claim 5, characterized in that it is constructed so as to be woven into strips.