JPH10325048A - Bias yarn feeding apparatus of three-dimensional loom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bias yarn feeding apparatus effective for reducing the size of a bias yarn guide block, simplifying the traveling motion of the guide block and accurately and surely performing the feeding of a bias yarn. SOLUTION: This bias yarn feeding apparatus of a three-dimensional loom is composed of 2N guide blocks 13 each having a narrow part, a guide block supporting means 18 to form lower and upper guide block arranging spaces S1 , S2 capable of holding N guide blocks 13 parallelly arranged adjacent to each other, a space-forming means 22 for forming a space Sp for one block by entering into the narrow part of the adjacent guide block 18 of the upper or lower stage and horizontally shifting the adjacent guide block 13 by one pitch of the block to allow the entering of the guide block 13 of the other stage into the formed space Sp, a beam-exchanging means 26 to exchange the beam of a guide block 13 protruded from a side of the block row, and a pushing means 27 to horizontally push the exchanged guide block 13 sideways into the block row by one pitch of the block.

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 woven fabric), and in particular, feeds a set of two layers of bias yarn. And a bias yarn feeder for the same.

[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 bias yarn feeder in a three-dimensional loom as described above, in which a long yarn can be continuously woven by a compact device. The bias yarn guide block for yarn feeding is reduced in size, and the movement of the guide block is 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]

According to the present invention, in order to achieve the above object, specifically, 2N guide blocks each having a small-diameter portion and N guide blocks are arranged adjacent to each other in parallel. Guide block receiving means for forming lower and upper guide block arrangement spaces that can be arranged in a row, and a guide block that enters the narrow diameter portion of the adjacent guide block in one of the stages and horizontally moves the adjacent guide block by one block Moving in the direction to form an airspace for one block, and an airspace forming means for allowing the guide block of the other stage to enter into the airspace; digit changing means for changing the digit of the guide block protruding to the side; A bias yarn feeder in a three-dimensional loom comprising push-in means for pushing one block in the horizontal direction from the side of the digit-changed guide block. It is intended.

Further, in the present invention, the air space forming means comprises a pair of claw members which are driven alternately left and right, and enters the narrow portion of the adjacent guide block to move the adjacent guide block by one block. The bias yarn feeder in the three-dimensional loom constructed as described above.

Further, the present invention has 2N guide blocks each having a plurality of threading pipes, which are pivotally connected to each other in a chain by the threading pipes, and each of which has a hook groove. Guide block receiving means for forming lower and upper guide block arrangement spaces in which a plurality of guide blocks can be arranged adjacent to each other in parallel with each other; and A bias yarn feeder in a three-dimensional loom, comprising: an air space for one block which is alternately moved in the horizontal direction by one block each time to form an air space for one block, and an air space forming means for allowing the guide block of the other stage to enter the air space. It constitutes the device.

[0009]

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.

FIGS. 1 and 2 show a specific example of a three-dimensional loom for weaving a five-axis three-dimensional fabric W, which 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. FIGS. 4, 5, and 6 show a basic configuration of the bias yarn orientation device 6 of the two-stage block type and a specific embodiment 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. The bias yarn guide block 13 includes a pair of block bases 14 and 14 having a rectangular cross section having a width dimension w and a height dimension h and a length dimension L,
A bias thread insertion hole 15 that penetrates in the length direction of the block bases 14 and 14 and that allows the bias thread B to be inserted along the length direction is formed to extend outward from both ends in the length direction of the block base 14. And a pipe member 17 forming an extension 16, 16 extending toward it.

The bias yarn guide block 13 can be arranged in a state where adjacent ones are in contact with each other in the form of a matrix in the right, left, up and down directions by means of both side surfaces 14a, 14a and upper and lower surfaces 14b, 14b of the block bases 14, 14. It is. The width dimension w of the block bases 14, 14 in the bias yarn guide block 13 corresponds to the weave feed pitch in the three-dimensional loom, and in the case of a weave feed pitch of 4 mm, the width dimension w = 4 mm and the height h of the block bases 14, 14
Is designed in accordance with a guide block arrangement space for two stages, a lower stage and an upper stage, which will be described later. In a specific embodiment, the height dimension is about h = 5 mm.

On the other hand, the bias yarn orientation device 6 has guide block support means 18. The guide block support means 18 includes a lower guide rail member 20 and an upper guide rail member 21 attached to the body frame 19.
It consists of what contains. Upper surface 20a of lower guide rail member 20 and lower surface 2 of upper guide rail member 21
1a face each other in parallel with each other, and form the guide block arrangement spaces S1 and S2 for the lower stage and the upper stage in a state where the bias yarn guide blocks 13 are stacked in the height direction.

Further, the bias yarn orientation device 6 includes an air space forming means 22. The airspace forming means 22
Is composed of a pair of claw members 23 and 24 that are driven alternately left and right, enter the small-diameter portion of the adjacent guide block, move the adjacent guide block by one block in the horizontal direction, and move one block of air space. Is formed, and the guide block of the other stage can enter into this airspace. The space forming means 22 is provided with a pair of claw members 23 and 24, and is provided with a reciprocating drive mechanism 25 for reciprocating them in the horizontal direction.

Furthermore, the bias yarn orientation device 6
Is a digit changing means 26 for changing the digit of the guide block 13 which protrudes to the side by the air space forming means 22, and a pushing means 27 for pushing the digit changed guide block by one block in the horizontal direction from the side. Have.

In the embodiment shown in the figure, the digit changing means 26 pushes the guide block 13 arranged in the lower guide block arrangement space S1 by one block in the horizontal direction by the air space forming means 22. , To lift the guide block 13 protruding to the side into the upper guide block arrangement space S2. The digit changing means 26 includes a cylinder device 28 as shown in FIG.
Up and down drive member 29 which can move up and down.

In the embodiment shown in FIG. 4, the pushing means 27 is the guide block 1 lifted by the digit changing means 26 into the upper guide block arrangement space S2.
The first to push 3 by one pitch from right to left
, And a second pusher 31 for pushing in by one pitch from left to right. The first pusher 30 and the second pusher 31 are mechanically connected to cylinder devices 32 and 33, for example, as shown in FIG.

In the present invention, the air space forming means 22 and the digit changing means 26 are not limited to the above embodiment, and the air space forming means 22 is provided on the upper side.
An air space is formed between the guide blocks 13 arranged on the upper guide block arrangement space S2 side, and the lower guide block 13 enters the upper air space, and the digit changing means 26 has a step-down structure. It may be configured.

As described above, in the bias yarn orienting device 6, the air space forming means 22 causes the weaving feed pitch to be 4 mm.
By moving the guide block 13 of each stage by 4 mm at a pitch of 1 mm along each stage, the bias yarn B ₁
Can be inserted as a + 45 ° bias yarn with respect to the warp X, and the bias yarn B ₂ can be inserted at −45 ° with respect to the warp X.
Can be inserted as a bias thread.

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

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. FIG. 6 shows the airspace forming means 2
2 forms an air space between the guide blocks 13 arranged on the lower guide block arrangement space S1 side, the upper guide block 13 enters into the lower air space, and the digit changing means 26 is raised. It is what was constituted. still,
In FIG. 6, the number of the bias yarn guide blocks 13 is set to 12 for the purpose of simplifying the description, but the actual number of the bias yarn guide blocks 13 is 2N, and N is the weave width at a pitch of 4 mm. When weaving a 3 m three-dimensional fabric, the number is 750.

First, in FIG. 6Ao, the 4th to 1st are arranged from left to right in the upper guide block arrangement space S2, and the 10th to 9th guide blocks 13 are arranged at the upper guide. The blocks are fully arranged in the block arrangement space S2 from right to left, the fifth to eighth are arranged in the lower guide block arrangement space S1 from left to right, and the eleventh to twelfth are arranged. The numbered guide block 13 is fully arranged in the lower guide block arrangement space S1 from right to left.

In this state, the pair of claw members 23 and 24 in the air space forming means 22 are moved into the small-diameter portion space between the eighth guide block and the twelfth guide block in the lower guide block arrangement space S1. The claw member 23
Arrow on the twelfth guide block by one pitch
6A, the air space Sp is formed as shown in FIG. 6A, and the eleventh guide block at the right end protrudes rightward.

In FIG. 6B, the ninth guide block in the upper guide block arrangement space S2 enters the air space Sp formed in the lower guide block arrangement space S1 by free fall. On the other hand, the eleventh guide block protruding to the right end is carried by the digit changing means 26 to the upper guide block arrangement space S2 along the arrow (b).

The eleventh guide block is pushed by the first pusher 30 in the direction of the arrow (C) by one pitch. By this pushing, the upper guide block arrangement space S2 and the lower guide block arrangement space S1 are filled with one pitch advanced, and FIG. 6Ao
State.

In this state, the pair of claw members 23 and 24 of the air space forming means 22 are moved into the small diameter space between the ninth and twelfth guide blocks in the lower guide block arrangement space S1. The claw member 24
To move the ninth guide block by one arrow (d)
6D, an air space Sp is formed as shown in FIG. 6D, and the fifth guide block at the left end is protruded to the left.

In FIG. 6E, the tenth guide block in the upper guide block arrangement space S2 enters the air space Sp formed in the lower guide block arrangement space S1 by free fall. On the other hand, the fifth guide block protruding to the left end is carried by the digit changing means 26 to the upper guide block arrangement space S2 along the arrow (e).

The carried fifth guide block is pushed by the second pusher 31 in the direction of the arrow (f) by one pitch. By this pushing, the upper guide block arrangement space S2 and the lower guide block arrangement space S1 are filled with the space advanced by one pitch, and are in the state of FIG. 6Ao.

In this embodiment, the above (a) to (c) and
The moving operation from (d) to (f) is one cycle of the guide block moving mode. By repeating this cycle, the guide block can be moved to a desired mode. In the embodiment shown in FIG. 6, as shown in FIG. 6L,
At the stage when the airspace forming means 22 reaches the right end, (d) to (f)
And (a) to (c), and
The air space forming means 22 is operated in the opposite direction by the reciprocating drive mechanism 25.

Next, an example of the structure of the two-stage chain system according to the present invention will be described with reference to FIGS. FIG. 7 is a schematic plan view showing a bias feeding device in a three-dimensional loom according to a specific embodiment based on a two-stage chain system according to the present invention. 8A is a schematic front view corresponding to FIG. 7, and FIG. 8A is a schematic front view taken in the direction of the arrow along line 8A-8A in FIG. 7, and FIG.
FIG. 8C is a schematic front view taken in the direction of the arrow along the line 8B-8B in FIG. 7, and FIG.
It is the schematic front view seen in the arrow direction along the line.

In the present invention, the bias thread guide block 43 for guiding the bias thread comprises a plurality of threading pipes 44 and a plurality of block bases 45 pivotally connected in a chain by the threading pipes. .
Hook grooves 46 and 47 are provided on one surface 45a and the other surface 45b of the block base 45. These hook grooves 46 and 47 are so-called one-way grooves,
Regarding the advancing direction of the feeding claw, which will be described later, for example, with respect to the guide block 43 arranged in the lower stage in FIG. 8A, the hooks 46A and 47A where the feeding claw is hooked when the feeding claw advances rightward; Have non-trapping portions 46B and 47B which are not trapped.

The guide blocks 43 form guide block receiving means 4 which form lower and upper guide block arrangement spaces S1 and S2 which can be arranged in parallel with each other.
8 are movably supported along the lower and upper guide block arrangement spaces S1 and S2.

Further, the bias yarn orientation device 6 is provided with an air space forming means 49. The air space forming means 49
Is composed of two pairs of feed claw slide bar members 50A, 50B, 51A, 51B, which are driven in a left-right and alternately driving manner. In the embodiment shown in FIGS. 8A and 8C, the feed claw slide bar member 50A has a plurality of guide blocks arranged in the lower guide block arrangement space S1 oriented in a direction suitable for feeding from left to right. The feed claw slide bar member 5 is provided.
OB includes a plurality of feed claws 53 oriented in a direction suitable for feeding the guide blocks arranged in the upper guide block arrangement space S2 from right to left. The feed claw slide bar member 51A has Is provided with a plurality of feed claws 54 oriented in a direction suitable for feeding the guide blocks arranged in the lower guide block arrangement space S1 from right to left, and the feed claw slide bar member 51B includes: A plurality of feed claws 55 are provided in a direction suitable for feeding the guide blocks arranged in the upper guide block arrangement space S2 from left to right.

The two pairs of upper and lower feed pawl slide bar members 50A, 50B, 51A, 51B are provided with driving means 56, 57, 58, 59, and are provided with the feed pawl slide bar members 50A, 50B, 51A. , 51B can be alternately driven rightward or leftward.

In the embodiment shown in FIGS. 7 and 8B,
A pair of upper and lower feed claw slide bar members 50
A pair of upper and lower positioning slide bar members 60A, 60B are provided between A, 50B, 51A, 51B. Each of the positioning slide bar members 60A and 60B has a hook groove 4 in the guide block.
A plurality of positioning claws 61 are provided so as to resiliently fit into the members 6 and 47.

As described above, in the bias yarn orienting device 6, the air space forming means 49 moves the guide block 43 of each stage at a pitch of 4 mm along each stage with respect to the weave feed pitch of 4 mm. can be inserted bias yarns B ₁ as a bias yarn + 45 ° relative to the warps X, the bias yarns B ₂ with respect to the warps X -
It can be inserted as a 45 ° bias thread.

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.

Next, the manner of movement of the bias thread guide block 43 in the bias thread orientation device 6 will be described with reference to FIG. In FIG. 9, the number of bias thread guides is set to 20 for the sake of simplicity, but the actual number of bias thread guide blocks is 2N.
N is 750 when weaving a three-dimensional woven fabric having a weave width of 3 m at a pitch of 4 mm.

First, in FIG. 9A, the first to sixth bias yarn guides are arranged from the middle of the upper guide block arrangement space S2 to the left, and the seventh to twelfth bias yarn guides are arranged. The thirteenth to sixteenth bias yarn guides are arranged from the middle to the right of the upper guide block arrangement space S2 from the left end to the middle of the lower guide block arrangement space S2. The twentieth bias yarn guide is arranged from the right end of the lower guide block arrangement space S1 toward the middle.

In this state, by driving the feed claw slide bar member 50A in the air space forming means 22 rightward, the twentieth to seventeenth bias yarn guides located in the lower guide block arrangement space S1 are driven. Is pushed rightward by one pitch in the direction of the arrow (A) to form an air space Sp as shown in FIG. 9B, and the 17th bias thread guide at the right end is protruded to the right.

Next, by driving the feed claw slide bar members 51A and 51B in the air space forming means 22 to the left, the 16th to 13th bias yarn guides located in the upper guide block arrangement space S2. To the right, and move the twelfth to seventh bias yarn guides located in the lower guide block arrangement space S1 to the left by one.
By pushing in the direction of the arrow (B) by the pitch, an air space Sp is formed as shown in FIG. 9C, and the seventh bias yarn guide at the left end protrudes leftward.

Subsequently, by driving the feed claw slide bar member 50B in the air space forming means 22 rightward, the sixth to first bias yarn guides located in the upper guide block arrangement space S2 are moved. 1 to the right
By pushing in the direction of arrow (C) by the pitch, the seventh bias thread guide is drawn into the upper guide block arrangement space S2.

In this configuration, the moving operation from (A) to (C) is one cycle of the moving mode of the bias thread guide. By repeating this cycle, the moving operation of the bias thread guide to the desired mode is performed. it can.

[0049]

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. In addition, the point that the bias yarn guide block is downsized, the movement of the bias yarn guide block is prevented from becoming complicated, and a three-dimensional fabric having a wide weave width can be reliably woven by a compact device. It can be said that it works very effectively.

Furthermore, the block 2 according to the present invention is used.
In the step method, since a pair of claw members enter the small diameter portion to form an air space, a small guide block can realize a reliable snake motion. In addition, in the two-stage chain method, since a plurality of guide blocks are connected, it can be said that the present invention is extremely effective in that a reliable snake motion can be realized without changing the order of the guide blocks.

[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 is a schematic diagram showing a basic configuration of a bias yarn orienting device according to a specific embodiment of the present invention based on a block two-stage system for a bias feeding device in a three-dimensional loom; It is a front view.

FIG. 5 is a schematic perspective view showing a specific example of a bias thread guide block.

FIG. 6 is a schematic front view schematically showing a guide block as a block for describing a movement mode of the guide block.

FIG. 7 is a schematic plan view showing a bias feeding device in a three-dimensional loom according to a specific embodiment of the present invention based on a two-stage chain system, partially broken away. .

8 is a view corresponding to FIG. 7 as viewed from the front side, and FIG. 8A is a schematic front view as viewed in the direction of arrows along the line 8A-8A in FIG. 8B is a schematic front view taken along the line 8B-8B in FIG. 7, and FIG. 8C is a schematic front view taken along the line 8C-8C in FIG. It is.

FIG. 9 is a schematic front view for explaining a moving mode of a chain type guide block in a two-stage chain type.

FIG. 10 is a schematic side sectional view showing a specific embodiment of a driving means in a two-stage chain system.

[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 Upper Guide Block Arrangement Space 22 , 49 Air space forming means 26 Digit changing means 27 Pushing means 30 First pusher 31 Second pusher 43 Bias thread guide block 48 Guide block support means 50A, 50B, 51A, 51B Feeding pawl slide bar members 52, 53, 54 , 55 feed claw

 ──────────────────────────────────────────────────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-shi, 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 Prefecture 10 Nagoya Aerospace System Works, Mitsubishi Heavy Industries, Ltd.

Claims (3)

[Claims] 1. A guide block receiving means for forming 2N guide blocks each having a small diameter portion and lower and upper guide block arrangement spaces in which N guide blocks can be arranged adjacent to each other in parallel. In one of the stages, the adjacent guide blocks enter the small-diameter portion of the adjacent guide block and are moved horizontally by one block to form an air space for one block, and the air space of the other stage is formed in the air space. Air space forming means for allowing the guide block to enter, digit changing means for changing the digit of the guide block protruding to the side, and pushing means for pushing the digit-changed guide block horizontally by one block from the side. And a bias yarn feeder in a three-dimensional loom. 2. The air space forming means comprises a pair of claw members which are driven alternately left and right, so as to enter a narrow portion of an adjacent guide block and move the adjacent guide block by one block. The bias yarn feeding device in the three-dimensional loom according to claim 1, wherein: 3. A method comprising: a plurality of threading pipes, 2N guide blocks each pivotally connected to each other in a chain by said threading pipes, and each having a hook groove; and N guide blocks each. Guide block receiving means for forming lower and upper guide block arrangement spaces which can be arranged adjacent to each other in parallel, and the guide blocks are engaged with the hooking grooves of the guide blocks so that one block is alternately provided for each stage. And a space forming means for moving the guide block of the other stage into the space by moving the block in the horizontal direction by one minute to form a space for one block. apparatus.