JPH10325041A - Three-dimensional weaving machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional weaving machine for miniaturizing bias yarn guide blocks, simplifying the movement of the guide blocks and accurately and surely carrying out feed of a bias yarn. SOLUTION: This three-dimensional weaving machine is equipped with 2N guide blocks 13 having a bias yarn insertion hole 15 in the length direction, a guide block supporting means 18 for forming guide block arrangement spaces S1, S2 and S3 of three stages of lower, middle and upper stages capable of adjoining N guide blocks among the 2N guide blocks in parallel and arranging the guide blocks 13, a guide block moving means 22 for moving the adjoining stages mutually in the opposite directions along each stage, and a stage changing means for changing, by one operation, the guide blocks of one stage of the guide blocks 13 of two stages which are moved and arranged in the guide block arrangement space of adjoining two stages among the guide block arrangement spaces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional loom for weaving a three-dimensional multiaxial fiber structure (three-dimensional multiaxial fabric), and more particularly to an improved bias yarn feeder. The present invention relates to a three-dimensional loom provided as a unit.

[0002]

2. Description of the Related Art Conventionally, as a three-dimensional loom for weaving a five-axis three-dimensional fabric comprising a warp, a weft, a bias yarn and a vertical yarn, for example, Japanese Patent Application Laid-Open Nos. 4-11043 and 5-106140, and the like. Has been proposed. In the three-dimensional looms described in these publications, the warp and the bias yarn are guided before weaving in the loom, a plurality of warp layers are constituted by the warp yarns, and a pair of bias yarn layers are constituted by the bias yarns. A bias yarn layer is disposed between the warp layers. As for a pair of bias yarn layers, the bias yarn of one layer is inclined at a fixed angle with respect to the warp, and the bias yarn of the other layer is inclined at the same angle in the opposite direction. Further, the weft is inserted between the warp layers and the bias yarn layers, and in the thickness direction of the warp layer and the bias yarn layer, the vertical yarn is inserted between the warps and the bias yarns of each layer. As a result, the five-axis three-dimensional fabric is woven, and the warp, the weft, and the bias yarn are connected and organized by the vertical yarn.

In a three-dimensional loom for weaving a five-axis three-dimensional woven fabric comprising a warp yarn X, a weft yarn Y, bias yarns B ₁ and B ₂ and a vertical yarn Z, one continuous yarn is converted into a large number of yarns. It is extremely difficult to mechanize the insertion of the bias yarn, which is inserted by slanting at a fixed angle to the arrangement direction of the fiber yarns in the longitudinal direction and the lateral direction in order to insert between the yarn guide members. There is a demand for the development of a rational mechanism.

[0004]

Conventionally, in a three-dimensional loom for weaving a five-axis three-dimensional fabric, a mechanism for feeding a bias yarn is disclosed in, for example, JP-A-4-11043 and JP-A-5-106140. According to the description, there is known a configuration in which the bias yarn is rotated and moved along an annular trajectory to be fed. However, when the bias yarn is rotated along an annular orbit like this, the supply side of the bias yarn also needs to be similarly rotated to prevent yarn entanglement. Could not be woven.

In view of the above, the present invention provides a three-dimensional loom having a bias yarn feeder which enables continuous weaving of long yarns by a compact device in the three-dimensional loom as described above. The bias yarn guide block for bias yarn feed can be downsized, and the movement of the guide block can be prevented from becoming complicated, so that the bias yarn can be fed accurately and reliably. Wide (for example, weave width 3
m) It is an object of the present invention to provide a three-dimensional loom capable of reliably weaving a three-dimensional fabric.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention specifically provides 2N guide blocks each having a bias thread insertion hole and N guide blocks each being parallel to each other. A guide block receiving means for forming a guide block arrangement space for three stages of lower, middle and upper stages which can be arranged adjacent to each other; A guide block moving means for moving in the opposite direction, and two stages of guide blocks that are moved and arranged in two adjacent stages of guide block arrangement space in the guide block arrangement space are collectively changed by one stage. This constitutes a three-dimensional loom including a step changing means.

Further, in the present invention, the guide block moving means includes horizontal moving means for pushing the guide blocks of each stage from the side and sending the guide blocks in the horizontal direction, and carry-up means for lifting the guide blocks protruding to the side. The step changing means constitutes a three-dimensional loom comprising step-down means for lowering the guide blocks for two steps, which are moved and arranged in the middle step and the upper step, collectively by one step.

Further, according to the present invention, the guide block moving means comprises a horizontal moving means for pushing the guide blocks of each stage from the side and sending the guide blocks in the horizontal direction, and a gear lowering means for lowering the guide blocks protruding to the side. Wherein the step changing means constitutes a three-dimensional loom comprising a step-up means for assembling the guide blocks for the two stages which are moved and arranged in the middle and lower stages together by one stage.

Further, according to the present invention, a three-dimensional loom is constructed in which the step changing means includes a holding member for changing one step each while simultaneously holding two stages of guide blocks from above and below. It is also a thing.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a bias yarn feeder in a three-dimensional loom according to the present invention will be described in detail based on a specific embodiment shown in the drawings. FIG. 1 is a schematic perspective view showing a specific embodiment of a three-dimensional loom to which a bias yarn feeder is applied according to the present invention, and FIG. 2 is a schematic view of the entirety of the three-dimensional loom. FIG. 3 is a schematic perspective view showing a specific structure of a three-dimensional woven fabric woven by the three-dimensional loom.

In FIGS. 1 and 2, this is a specific example of a three-dimensional loom for weaving a five-axis three-dimensional fabric W, and has a yarn supply device 1 constituted by a plurality of beams 2. Each beam 2 in the yarn supply device 1
, A warp yarn X, bias yarns B ₁ and B ₂ and a vertical yarn Z are wound up. Then, the warp yarn X, the bias yarn B ₁ ,
B ₂ and the vertical yarn Z are supplied from each beam 2 and pass through the dancer roller 3 and the split guide 4 to the frame 5.
It is led to.

Further, in the frame 5, FIG.
As shown in the figure, the warp yarn X and the bias yarns B ₁ and B ₂ pass through the bias yarn orientation device 6 and are led to the weaving front portion 7 where the warp yarn X
Bias yarns B ₁ a plurality of the warp layers X _L is formed by,
B ₂ by two layers a pair of bias thread layers B _1L, B _2L is constituted, the bias yarn layers B _1L, B _2L are arranged between the warp layer X _L. 2-layer pair of bias thread layers B _1L, for B _2L, bias yarns B _1, B by the bias thread orienting device 6
₂ is operated, the bias yarn B _{1 of one} layer is inserted at a fixed angle (for example, + 45 °) with respect to the warp X, and the bias yarn B ₂ of the other layer is inserted at the same angle in the opposite direction to the warp X. (For example, -45 °).

Furthermore, the weft Y is operated by the weft insertion device 8, which are inserted the warp layer X _L and between the two layers a pair of bias thread layers B _1L, on the outside of the B _2L.

Further, the vertical thread Z is inserted by the vertical thread insertion device 9. The vertical yarn insertion device 9 has an upper vertical yarn insertion member 9A and a lower vertical yarn insertion member 9B. Between the bias yarn orientation device 6 and the weaving front portion 7, the upper vertical yarn insertion member 9A Thread B ₁ ,
Insert the vertical yarns Z from above the B _2, are configured to lower vertical yarn insertion members 9B inserts the vertical yarns Z from below the warps X and the bias yarns B _1, B _2.

A pressing means 1 is provided downstream of the weaving front 7.
0 is disposed, and the woven three-dimensional fabric W passes through the woven fabric holding unit 11 that stabilizes the woven shape, and is wound by the woven fabric winding unit 12.

Next, the bias yarn orientation device 6 for feeding the bias yarns B ₁ and B ₂ , which is a main part of the three-dimensional loom of the present invention, will be described in detail. 4A to 4C show a basic configuration of the bias yarn orientation device 6 and a specific example of the bias yarn guide block for guiding the bias yarn in the present invention.

First, a specific embodiment of the bias thread guide block 13, which is the most important component in the present invention, will be described with reference to FIG. 4C. The bias thread guide block 13 includes a block base 14 having a rectangular cross-section having a width dimension w and a height dimension h and a length dimension L, penetrating in the length direction of the block base 14, and extending along the length direction. Pipe member 17 for forming bias yarn insertion holes 15 for allowing the insertion of the bias yarn B to form extensions 16 extending outward from both ends in the longitudinal direction of the block base 14.
And that which includes.

The bias yarn guide block 13 is provided on both side surfaces 14a, 14a of the block base 14 and the upper and lower surfaces 1a.
By 4b and 14b, it is possible to arrange the adjacent components in a state of abutting on the left, right, up and down in a matrix.
The width dimension w of the block base 14 in the bias yarn guide block 13 corresponds to the weave feed pitch in the three-dimensional loom. In the case of the weave feed pitch of 4 mm, the width dimension w = 4 mm. Designed
The height h of the block base 14 is designed in accordance with the guide block arrangement space for the lower, middle, and upper stages described below, and in a specific embodiment, the height is h. h = about 5 mm.

On the other hand, the bias yarn orientation device 6 includes guide block support means 18. The guide block support means 18 includes a lower guide rail member 20 attached to the body frame 19 and an upper guide rail member 2.
1 is included. The upper surface 20a of the lower guide rail member 20 and the lower surface 21a of the upper guide rail member 21 face each other in parallel with each other, and the lower, middle, and upper bias yarn guide blocks 13 are stacked in the height direction. The upper three guide block arrangement spaces S1, S2 and S3 are formed.

Further, the bias yarn orienting device 6 moves the guide block 13 into the guide block arrangement space S
With a certain regularity within 1, S2 and S3,
Guide block moving means 22 for moving adjacent steps along the respective steps in the respective steps in opposite directions.
It has. The guide block moving means 22 includes a horizontal moving means 23 for pushing the guide blocks of each stage from the side and sending the guide blocks in the horizontal direction, and a carry means 24 for lifting the guide blocks protruding to the side.

The horizontal moving means 23 in the guide block moving means 22 moves the guide blocks 13 arranged in the lower guide block arrangement space S1 in FIG. 4A.
Lower first slider 25 for intermittently pushing from pitch to pitch from middle and right to left, and lower second slider 26 for pushing intermittently every pitch from left to right.
An upper first slider 27 for intermittently pushing the guide blocks 13 arranged in the upper guide block arrangement space S3 from right to left at every one pitch,
An upper second slider 28 for intermittently pushing in every pitch from left to right, and a guide block 13 arranged in the middle guide block arrangement space S2 for one pitch from right to left. It comprises a middle first pusher 29 and a middle second pusher 30 for pushing in one pitch from left to right.

According to a specific embodiment, the horizontal moving means 23 in the guide block moving means 22 is, as shown in FIGS. 4A, 6 and 7, with respect to each of the sliders 25 and 26. In FIG. 4A, rack gears 25G and 26G are provided on the front side, and rack gears 27G and 28G are provided on the rear side for each of the sliders 27 and 28. Each of the rack gears 25
G, 26G, 27G, respectively the motor M _1A for 28G, M _2A, M _3A, the pinion gear 31, 32, 33 and 34 to rotate by M _4A meshes.

The middle first pusher 29 and the middle second pusher 30, for example, as shown in FIG.
A vertical drive member 36 connected to the cylinder device 35,
It is configured to be able to advance and retreat by 4 mm in the horizontal direction via a rotation connecting member 38 that can rotate around the pivot point 37. The middle-stage guide block arrangement space S2
, A separator member 39 that enters between the pipe members 17 in each guide block 13 is applied to the end of the guide block 13 in the horizontal direction. The separator member 3
Numeral 9 is configured to be vertically movable by a cylinder device 40, and acts on a detent of the guide block 13.

On the other hand, the carry means 24 of the guide block moving means 22 in the embodiment shown in FIG. 1 is used to move the guide blocks 13 arranged in the lower guide block arrangement space S1 or the middle guide block arrangement space S2. When the guide block 13 is pushed in the horizontal direction by the horizontal moving means 23, the guide block 13 protruding to the side is lifted to the guide block arrangement space S2 in the middle stage or the guide block arrangement space S3 in the upper stage.

As shown in FIG. 8, the carry means 24 includes a vertical drive member 42 which can be moved up and down by a cylinder device 41. The vertical drive member 42 has a locking portion 43 that engages with the pipe member 17 of the guide block 13 and supports the guide block 13.

The guide block moving means 22 described above
The guide block 13 is sequentially moved from the lower guide block arrangement space S1 to the middle guide block arrangement space S2 by the horizontal movement means 24 and the carry means 25,
The guide block 13 is sequentially moved from the middle guide block array space S2 to the upper guide block array space S3, and adopts a movement form such as a so-called snake motion. As a whole, the guide block 13 includes the upper guide block array space S3 and the middle guide block array. When the space S2 is full, the steps are lowered at once by the step changing means 44 described later.

In the present invention, the guide block moving means 2
2 is not limited to the above-described embodiment, and the guide block 13 is moved from the upper guide block arrangement space S3 to the middle guide block arrangement space S2.
Are sequentially moved from the middle guide block arrangement space S2 to the lower guide block arrangement space S1, so that the guide blocks 13 as a whole are completely filled in the middle guide block arrangement space S2 and the lower guide block arrangement space S1. At this stage, a step-up operation is simultaneously performed by the step-changing means 44 described later. In this case, the carry means 25 of the guide block moving means 22 becomes a carry-down means, and the step change means becomes a simultaneous carry-up means.

Next, of the guide block arrangement space, two stages of guide blocks which are moved and arranged in the adjacent two stages of guide block arrangement spaces are collectively changed by one stage. A typical embodiment will be described with reference to FIGS. As described above, the step changing means 44 includes step lowering means for collectively lowering the two-stage guide blocks arranged in the middle and upper stages by one stage, and two steps moving and arranged in the middle and lower stages. And a step-up means for raising one minute guide block at a time by one step.

In the embodiment shown in FIGS. 10 and 11, the step changing means 44 includes a cam member 46 which can be reciprocated right and left by, for example, a cylinder device 45 or the like. The cam member 46 has a horizontal cam surface 4.
7, an inclined cam surface 48 which is continuous with the horizontal cam surface 47. The step changing means 44 includes a holding member 49 for holding the guide blocks for two steps collectively from above and below, and for changing the steps one step at a time.

When the guide block 13 is filled with, for example, the upper guide block arrangement space S3 and the middle guide block arrangement space S2, the sandwiching member 49 raises and lowers the two stages of guide blocks 13 up and down. And a holding bar member 51 provided with a urethane resin layer 50 on a surface applied to a portion of the pipe member 17 in each of the guide blocks 13.
And a plurality of rod members 52 that are attached to the holding bar member 51 and whose tips contact the cam surface of the cam member 46.

As described above, in the bias yarn orientation device 6, the guide blocks 13 of each stage are moved in the opposite directions along the respective stages with respect to the weaving feed pitch of 4 mm by the horizontal moving means 23 of the guide block moving means 22. by moving one pitch 4mm increments, the bias yarns B ₁ can be inserted as a bias yarns + 45 ° relative to the warps X, inserting the biasing yarns B ₂ as the bias yarns of -45 ° relative to the warps X be able to. Step change means 4
After the step change by step 4, the bias direction is reversed.

The above description relates to the bias yarn orientation device 6.
Although a single configuration has been described for the purpose of describing its basic configuration, in practice, not only two pairs of bias yarn layers are formed by the bias yarns B ₁ and B ₂ , but also two layers In general, a plurality of bias yarn layers are provided.

FIG. 6 shows an embodiment of the bias yarn orientation device 6 for forming two sets of bias yarn layers in four stages. According to the embodiment shown in FIG.
The bias yarn orientation device 6 in the above description is
A, 7B, 7C and 7D are combined in four stages.
A horizontal moving means 23 in the guide block moving means 22 is provided for each of the devices 7A, 7B, 7C and 7D in each stage. According to the specific embodiment, rack gears 25G and 26G are provided on the front side of the sliders 25 and 26, and rack gears 25G and 26G are provided on the rear side of the sliders 27 and 28. Gears 27G and 28G are provided.

Each rack gear 25G, 2
For 6G, 27G, and 28G, the motor M _1A ,
Pinion gear 3 rotated by M _2A , M _3A , M _4A
1, 32, 33, and 34 are engaged with each other, and a pinion gear 31 rotated by motors M _1B , M _2B , M _3B , and M _4B for each of the rack gears 25G, 26G, 27G, and 28G of the device 7B. , 32, 33, and 34 mesh with each other, and each rack gear 25G, 26
G, 27G, and 28G for motors M _1C and M
_2C , M _3C , pinion gear 31 rotated by M _4C ,
32, 33, and 34 are engaged with each other, and pinion gears 31, 32 that are rotated by motors M _1D , M _2D , M _3D , and M _4D for the rack gears 25G, 26G, 27G, and 28G of the device 7D, respectively. , 33, 34 are in mesh. In this way, by configuring the drive source of each horizontal movement unit 23 with an individual motor, the horizontal movement timing of the guide block for each stage can be individually controlled. When the bias yarn is fed by a three-stage feeder, 2
In one set of bias yarn layers, -45 ° bias yarns are arranged above and below the + 45 ° bias yarns.
By shifting the feed phase of the bias yarn for each stage,
The boundary position between the −45 ° bias yarn located above the 45 ° bias yarn and the −45 ° bias yarn located below can be shifted for each stage, forming a more uniform fabric in the thickness direction. can do.

Next, the manner of movement of the bias thread guide block 13 in the bias thread orientation device 6 will be described with reference to FIG. In FIG. 12, the guide block moving means 22 pushes the guide block 13 of each stage from the side and sends it horizontally, and the carry means 24 which lifts the guide block protruding to the side.
And the step changing means 44 collectively arranges the two stages of the guide blocks 13 which are moved and arranged in the middle stage and the upper stage, respectively.
It is constituted by step lowering means for lowering by steps. In FIG. 12, the number of the bias yarn guide blocks 13 is set to 10 for the purpose of simplifying the description, but the actual number of the bias yarn guide blocks 13 is
There are 2N pieces, and N is 750 pieces when weaving a three-dimensional woven fabric with a weave width of 3 m at a pitch of 4 mm.

First, in FIG. 12A, the first to fifth guide blocks 13 correspond to the middle guide block arrangement space S
2 are fully arranged from right to left, from No. 6
In this state, the tenth guide block 13 is fully arranged in the lower guide block arrangement space S1 from left to right.

In this state, the guide blocks arranged in the lower guide block arrangement space S1 are pushed in the direction of the arrow (a) by one pitch by the motor _M1A of the horizontal moving means 23. Of the guide blocks arranged in the lower guide block arrangement space S1, the sixth guide block at the left end protrudes leftward. The protruding sixth guide block is carried by the carry means to the middle guide block arrangement space S2 along the arrow (b).

The carried sixth guide block is pushed in the direction of the arrow (C) by one pitch by the middle second pusher 30. By this pushing, the first rightmost guide block of the guide blocks arranged in the middle guide block arrangement space S2 protrudes rightward. The protruding first guide block is moved along the arrow (d) by the carry means to the upper guide block arrangement space S.
Carry to three.

The carried first guide block is pushed one pitch in the direction of the arrow (e) by the motor M _3A of the horizontal moving means 23. This moving operation from (a) to (e) is one cycle of the first half (before the step change) by the guide block moving means 22. By repeating this cycle five times, as shown in FIG. Turn ~
The fifth guide block is fully arranged from left to right in the upper guide block arrangement space S3, and the sixth to fifth guide blocks are arranged.
The tenth guide block is fully arranged in the middle guide block arrangement space S2 from right to left.

In this state, the step changing means 44 is operated to move the first to fifth guide blocks arranged in the upper guide block arrangement space S3 into the middle guide block arrangement space S2, and into the middle guide block arrangement space S2. Guide block array space S
The 6th to 10th guide blocks arranged in No. 2 are lowered into the lower guide block arrangement space S1 in the same order as they are. FIG. 12A and FIG.
Although the guide blocks are filled in the lower guide block arrangement space S1 and the middle guide block arrangement space S2, the arrangement order is different as is apparent from the drawing.

[0041] After the Dankae operation, the lower the motor M _3A in the horizontal moving means 23 guide block arrangement spaces S1
Arrow on the guide block
(f) Push in the direction. Lower guide block arrangement space S
Among the guide blocks arranged in 1, the sixth guide block at the right end protrudes rightward. The sixth that protruded
The numbered guide block is carried by the carry means to the middle guide block arrangement space S2 along the arrow (g).

The carried sixth guide block is pushed in the direction of the arrow (h) by one pitch by the middle first pusher 29. By this pressing, the first guide block on the left end of the guide blocks arranged in the guide block arrangement space S2 in the middle stage protrudes leftward. The protruding first guide block is moved along the arrow (i) by the carry means to the upper guide block arrangement space S.
Carry to three.

The raised first guide block is pushed in the direction of the arrow (j) by one pitch by the motor M _4A of the horizontal moving means 23. This movement operation from (f) to (j) is one cycle of the latter half (after the step change) by the guide block moving means 22, and this cycle is repeated five times to perform the step change operation, as shown in FIG. 12A. Returns to the first array order.

[0044]

According to the three-dimensional loom of the present invention having the above-described structure, the bias yarn orienting device which is the most difficult component of the three-dimensional loom to support and orient the bias yarn is inserted. The bias yarn guide block is moved by so-called snake motion, instead of being rotated along an annular track as in the conventional one, so that it is no longer necessary to rotate the bias yarn supply side. Furthermore, the downsizing of the bias thread guide block is realized, and the operation of digging the upper guide block into the gap between the lower guide blocks is unnecessary, so that the movement of the bias thread guide block is prevented from becoming complicated, and the compact structure is realized. Excellent in that we can reliably weave three-dimensional fabrics with a wide weave width using the device Effectively it can be said that the act.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a specific embodiment of a three-dimensional loom to which a bias yarn feeder is applied according to the present invention.

FIG. 2 is a side view schematically showing the entirety of the three-dimensional loom.

FIG. 3 is a schematic perspective view showing a specific structure of a three-dimensional fabric woven by the three-dimensional loom.

FIG. 4 shows a basic configuration of a bias yarn orientation device according to the present invention and a specific embodiment of a bias yarn guide block for guiding a bias yarn. FIG. 4A shows a bias yarn orientation device. 4B is a schematic front view showing the basic configuration of FIG. 4B. FIG. 4B is a schematic plan view showing the relationship between the guide block and the slider member.
FIG. 4 is a schematic perspective view showing a specific example of a bias thread guide block.

5 is a right side view of the bias yarn orientation device in FIG. 4A as viewed from the right side. FIG. 5A shows guide blocks arranged in a lower guide block arrangement space S1 and a middle guide block arrangement space S2. FIG. 5B is a schematic side view of a state where the guide blocks are arranged in the middle guide block arrangement space S2 and the upper guide block arrangement space S3.

FIG. 6 is a schematic perspective view showing a specific embodiment in which the bias yarn orientation device as shown in FIG. 4A is configured in four stages.

FIG. 7 shows the relationship between the guide block and the guide block horizontal moving means. FIG. 7A is a schematic plan view, and FIG. 7B is a schematic front view. .

FIG. 8 is a schematic front view showing a specific embodiment of a carry means of the guide block.

FIG. 9 is a schematic side cross-sectional view showing a part related to the orientation of the bias yarn and the orientation of the warp yarn.

FIG. 10 is a schematic side sectional view showing a specific embodiment of a step changing means of a guide block.

FIG. 11 is a schematic front view showing a specific example of a step changing means of the guide block, as viewed from the left side of FIG. 10;

FIGS. 12A to 12T are schematic front views schematically showing a guide block for explaining a moving mode of the guide block.

[Explanation of symbols]

X Warp B ₁ , B ₂ Bias Y Y Weft Z Vertical Yarn 6 Bias Yarn Orienting Device 13 Bias Yarn Guide Block 15 Bias Yarn Insertion Hole 18 Guide Block Supporting Means S1 Lower Guide Block Arrangement Space S2 Middle Guide Block Arrangement Space S3 Upper guide block arrangement space 22 Guide block moving means 23 Horizontal moving means 24 Carrying means 44 Step changing means

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroki Takashima 136 Takeda Mukodai-cho, Fushimi-ku, Kyoto-shi, Kyoto Prefecture Inside Murata Machinery Co., Ltd. (72) Inventor Ootoshima Hirao Takeda, Fushimi-ku, Kyoto, Kyoto 136 Mukodaicho, Murata Machinery Co., Ltd. (72) Inventor Shigeru Nishiyama 10 Oecho, Minato-ku, Nagoya City, Aichi Prefecture Mitsubishi Heavy Industries, Ltd.Nagoya Aerospace Systems Works (72) Inventor Masahiro Shinya Nagoya, Aichi Nagoya Aerospace System Works, Mitsubishi Heavy Industries, Ltd. (72) Inventor Tetsuya Yamamoto 10 Nagoya Aerospace Systems Works, Minato-ku, Aichi, Japan

Claims (4)

[Claims] 1. A 2N guide block having a bias thread insertion hole, and a guide block arrangement space for three stages of a lower stage, a middle stage, and an upper stage in which N guide blocks can be arranged adjacent to each other in parallel. A guide block supporting means to be formed, a guide block moving means for moving the guide block in each of the adjacent steps along the respective steps in opposite directions, and a guide block arrangement space, The guide blocks for two stages which are moved and arranged in the adjacent two-stage guide block arrangement space are collectively referred to as one.
3. A three-dimensional loom comprising: a step changing means for changing a step by step. 2. The guide block moving means includes a horizontal moving means for pushing a guide block of each stage from a side and sending the guide block in a horizontal direction, and a carry means for lifting a guide block protruding to the side, The three-dimensional loom according to claim 1, wherein the step changing means comprises step-down means for lowering the two-stage guide blocks arranged and moved in the middle step and the upper step by one step. 3. The guide block moving means includes a horizontal moving means for pushing a guide block of each stage from the side and sending the guide block in a horizontal direction, and a carry-down means for lowering a guide block protruding to the side. 3. The three-dimensional loom according to claim 1, wherein the step changing means comprises a step-up means for raising the two stages of guide blocks, which are moved and arranged in the middle stage and the lower stage, by one stage. 4. The step changing means comprises a holding member for holding a guide block for two steps collectively from above and below, and for changing a step for one step each. Item 3. The three-dimensional loom according to any one of Items 3.