EP2065495A2

EP2065495A2 - Multiple yarn interlacing device

Info

Publication number: EP2065495A2
Application number: EP08013762A
Authority: EP
Inventors: Takefumi Sasagawa; Kinzo Hashimoto
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2007-11-29
Filing date: 2008-07-31
Publication date: 2009-06-03
Also published as: TW200932970A; JP2009133018A; CN101445980A; EP2065495A3

Abstract

The present invention provides a multiple yarn interlacing device that interlaces a plurality of yarns and which requires a reduced number of components and allows the pitch of yarn paths to be reduced, the device further having a simple configuration. The multiple yarn interlacing device 100 includes a first member 2 having a plurality of yarn traveling spaces 1 formed as spaces through which respective multifilament yarns Y travel and a second member 4 having a plurality of fluid injecting holes 3 through which a fluid to be injected into the respective yarn traveling spaces 1 flows.

Description

Field of the Invention

The present invention relates to a multiple yarn interlacing device that interlaces a plurality of multifilament yarns.

Background of the Invention

As a technique of this kind, the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 9-250043 discloses a multiple yarn fluid processing device. The multiple yarn fluid processing device comprises a plurality of yarn path members arranged at intervals in a row. The adjacent yarn path members constitute a fluid processing section.
However, with the configuration in the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 9-250043 , the number of yarn path members needs to be increased consistently with the number of yarns to be subjected to fluid processing. Owing to the large number of components required, those skilled in the art tend to avoid the use of this configuration. Furthermore, in this configuration, the yarn path members are arranged in a row. The complicatedness of the configuration makes a reduction in the pitch of the yarn paths difficult.

Summary of the Invention

The present invention has been made in view of these circumstances. A main object of the present invention is to provide a multiple yarn interlacing device that interlaces a plurality of yarns and which requires a reduced number of components and allows the pitch of the yarn paths to be reduced, the device further having a simple configuration.
The problems to be solved by the present invention have been described. A description will be given of means for solving the problems and effects of the means.
According to an aspect of the present invention, a multiple yarn interlacing device that interlaces a plurality of yarns is configured as follows. That is, the device comprises a first member having a plurality of yarn traveling spaces at least partly formed therein as spaces through which the respective yarns travel, and a second member having a plurality of fluid channels formed therein through which a fluid to be injected into the respective yarn traveling spaces flows. With this configuration, the device interlacing the plurality of yarns requires a reduced number of components and can thus be inexpensively provided. Furthermore, compared to the configuration in the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 9-250043 , the present configuration enables a reduction in the pitch of the yarn paths of the plurality of yarns.
The above-described multiple yarn interlacing device is further configured as follows. That is, each of the yarn traveling spaces comprises a combination of a groove formed in the first member and a surface formed on the second member. This configuration enables a reduction in processing costs compared to an configuration in which each of the yarn traveling spaces comprises a combination of grooves.
The above-described multiple yarn interlacing device is further configured as follows. That is, each of the yarn traveling spaces extends inward in a direction of flow of the fluid injected into the traveling space. This configuration allows a whirling current of the fluid to be efficiently formed in the yarn traveling space.
The above-described multiple yarn interlacing device is further configured as follows. That is, each of the yarn traveling spaces is line-symmetric with respect to the direction of the flow of the fluid injected into the yarn traveling space. With this configuration, the state of the flow of the fluid injected into the yarn traveling space is line-symmetric.
The above-described multiple yarn interlacing device is further configured as follows. That is, the first member and the second member are fixed to each other across a yarn inserting gap into which each of the yarns can be inserted. The yarn is inserted into the corresponding yarn traveling space via the yarn inserting gap. With this configuration, a configuration enabling each of the yarns to be inserted into the corresponding yarn traveling space can be provided without a movable portion.
The above-described multiple yarn interlacing device is further configured as follows. That is, the first member and the second member are configured to be able to abut against and move away from each other. With this configuration, (a) the first member and the second member abut against each other to make it possible to prevent the fluid injected into each of the yarn traveling spaces from being blown out from between the first member and the second member, and to prevent the yarn from jumping out. Furthermore, (b) the first member and the second member move away from each other to facilitate an operation of inserting each of the yarns into the corresponding yarn traveling space.
The above-described multiple yarn interlacing device is further configured as follows. That is, the first member is fixed relative to yarn paths of the plurality of yarns. The second member is movable relative to the first member. With this configuration, even when the first member and the second member abut against or move away from each other, the relative positional relationship between the yarn paths of the yarns and the respective yarn traveling spaces remains unchanged. Thus, in this sense, degradation of the quality of the yarns can be avoided.
The above-described multiple yarn interlacing device is further configured as follows. That is, the second member is pivotably provided on the first member. This configuration allows the first member and the second member to abut against and move away from each other using a simple configuration.
The above-described multiple yarn interlacing device is further configured as follows. That is, the second member is slidable relative to the first member. This configuration allows the first member and the second member to abut against and move away from each other using a simple configuration. Other features, elements, processes, steps, characteristics and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the present invention with reference to the attached drawings.

Brief Description of the Drawings

Figure 1 is a front view of a multiple yarn interlacing device according to a first embodiment of the present invention.
Figure 2 is a front sectional view of the multiple yarn interlacing device according to the first embodiment of the present invention.
Figure 3 is a front view of the multiple yarn interlacing device according to the first embodiment of the present invention, a front portion of the device being enlarged in the view.
Figure 4 is a diagram which is similar to Figure 3 and which relates to a first variation of the first embodiment of the present invention.
Figure 5 is a diagram which is similar to Figure 3 and which relates to a second variation of the first embodiment of the present invention.
Figure 6 is a front view of a multiple yarn interlacing device according to a second embodiment of the present invention.
Figure 7 is a front view of the multiple yarn interlacing device according to the second embodiment of the present invention.
Figure 8 is a front view of a multiple yarn interlacing device according to a third embodiment of the present invention.
Figure 9 is a front view of a multiple yarn interlacing device according to a fourth embodiment of the present invention.

Detailed Description of the Preferred Embodiments

A first embodiment of the present invention will be described with reference to the drawings. Figure 1 is a front view of a multiple yarn interlacing device according to a first embodiment of the present invention. Figure 2 is a front sectional view of the multiple yarn interlacing device according to the first embodiment of the present invention. Figure 3 is a front view of the multiple yarn interlacing device according to the first embodiment of the present invention, a front portion of the device being enlarged in the view.
A multiple yarn interlacing device 100 according to the present embodiment interlaces a plurality of multifilament yarns Y. As shown in Figures 1 and 2, the multiple yarn interlacing device 100 comprises a first member 2 having yarn traveling spaces 1 formed therein as spaces through which the respective multifilament yarns Y travel, and a second member 4 having fluid injecting holes 3 formed therein through which a fluid to be injected into the respective yarn traveling spaces 1 flows. The first member 2 and the second member 4 are fixed to each other across a yarn inserting gap 5 through which the multifilament yarns Y can be inserted. As shown in Figures 1 and 2, a plurality of the yarn traveling spaces 1 are juxtaposed at predetermined intervals.
A simple expression "juxtaposition direction" hereinafter refers to a direction in which the yarn traveling spaces 1 are juxtaposed. Similarly, a simple expression "opposite direction" hereinafter refers to a direction in which the first member 2 and the second member 4 are arranged opposite each other. A direction orthogonal to both the juxtaposition direction and the opposite direction is defined as a "yarn traveling direction". The yarn traveling direction is perpendicular to the sheet of Figure 1 and is the same as a direction in which the yarn traveling spaces 1 extend. Moreover, the yarn traveling direction is the same as a direction in which the multifilament yarn Y travels through the respective yarn traveling space 1.
The first member 2 and the second member 4 are fixed together by a third member 6 provided opposite the second member 4 across the first member 2 to support the first member 2 and a fourth member 7 provided opposite the first member 2 across the second member 4 to support the second member 4. The third member 6 extends along and like the first member 2, extending in the juxtaposition direction. The fourth member 7 is composed of a support portion 7a extending along the second member 4, extending in the juxtaposition direction, and a coupling portion 7b extending perpendicularly from one end of the support portion 7a toward the third member 6. The third member 6 is fixed to the coupling portion 7b of the fourth member 7 by a fixing means, for example, bolt tightening. Fixing the third member 6 and the fourth member 7 to each other allows the first member 2 and the third member 4 to be fixed to each other as described below.
In this configuration, the plurality of multifilament yarns Y are moved along the juxtaposition direction as shown by a thick arrow in Figure 1 and inserted into the respective yarn traveling spaced 1 via the yarn inserting gap 5, formed between the first member 2 and the second member 4. In short, each of the multifilament yarns Y is inserted into the corresponding yarn traveling space 1 from the second member 4 side. To facilitate the inserting operation, the first member 2 and the second member 4 have slightly tapered surfaces along which the multifilament yarn Y is guided to the yarn inserting gap 5.
Figure 2 is a front sectional view of Figure 1 as described above. Specifically, Figure 2 is taken by cutting the multifilament yarn interlacing device 100 perpendicularly to the yarn traveling direction at the center thereof in the yarn traveling direction. As shown in Figure 2, the fluid injecting holes 3 are formed in the second member 4 at a central portion thereof in the yarn traveling direction so as to lie in the juxtaposition direction. A first fluid channel 8 communicating with all the fluid injecting holes 3 is formed inside the second member 4 to uniformly supply a fluid to the plurality of fluid injecting holes 3. A second fluid channel 9 communicating with the exterior of the device is formed in the support portion 7a. In this configuration, a compressor (not shown in the drawings) is connected to the second fluid channel 9. A fluid, for example, compressed air, is supplied to the second fluid channel 9. Then, a predetermined amount of the fluid is supplied to each of the yarn traveling spaces 1 via the first fluid channel 8 and a corresponding one of the fluid injecting holes 3 in this order. Then, the fluid supplied to the yarn traveling space 1 is divergently divided into two fractions and flows through the yarn traveling space 1 along the extending direction of the yarn traveling space 1. The fluid is then blown out from the opposite ends of the yarn traveling space 1.
Now, the shape of the yarn traveling space 1 will be described in detail. Figure 3A corresponds to a partly enlarged view of Figure 2. Figure 3B shows another cross section in which a cut surface does not contain the fluid injecting hole 3.
As shown in Figure 3B, the yarn inserting gap 5 is formed between a first surface 10 formed as a surface of the first member 2 which lies opposite the second member 4 and a second surface 11 formed as a surface of the second member 4 which lies opposite the first member 2; the yarn inserting gap 5 is small enough to allow the multifilament yarns Y to be barely inserted through the gap 5. Grooves 12 extending along the yarn traveling direction are formed in the first surface 10 of the first member 2. The yarn traveling space 1 is composed of a combination of the groove 12, formed in the first member 2, and the second surface 11 of the second member 4. Furthermore, as shown in Figure 3A, the yarn traveling space 1 is formed to extend inward along line C showing the direction of the flow of the fluid injected into the yarn traveling space 1. The yarn traveling space 1 is also formed line-symmetrically with respect to the line C.
In the present embodiment, the sectional contour of the groove 12 is composed of a linear portion (a) extending perpendicularly from the first surface 10 and away from the second surface 11, a circular portion (b) connected to the tip of the linear portion (a) and bulging away from the line C in a semicircle, a bottom portion (c) connected to the tip of the circular portion (b) and extending in a direction perpendicular to the line C and longer than the diameter of the fluid injecting hole 3, having a circular cross section, a circular portion (d) connected to the tip of the bottom portion (c) and forming a semicircle such that the semicircle, and the circular portion are line-symmetric with respect to the line C, and a linear portion (e) connected to both the tip of the circular portion (d) and the first surface 10, and which is line-symmetric with respect to the linear portion (a) and the line C. Thus, the sectional shape of the groove 12 corresponds to the coupling of a rectangle wider than the diameter of the fluid injecting hole 3 in the juxtaposition direction and an oval which is wider than the rectangle and which is composed of a combination of a circular arc and a straight line; the sectional shape of the groove 12 is thus said to extend inward.
In the above-described configuration, interlacing of the plurality of multifilament yarns Y is started.

(1) First, the plurality of multifilament yarns Y are inserted into the yarn inserting gap 5 at a time in a direction shown by a thick arrow in Figure 1 using what is called a suction gun (not shown in the drawings) that sucks and catches the plurality of multifilament yarns Y with predetermined intervals maintained among the yarns Y.
(2) Then, an operator checks whether or not the multifilament yarns Y inserted into the yarn inserting gap 5 lie opposite the openings of the respective grooves 12, formed in the first member 2. The suction gun is then used to simultaneously set the plurality of multifilament yarns Y on a guide roller provided on a downstream side of the multiple yarn interlacing device 100. The positions, relative to the multiple yarn interlacing device 100, of guide rollers arranged on the upstream side and downstream side, respectively, of the multiple yarn interlacing device 100 are pre-adjusted such that after the yarn setting, each of the set multifilament yarns Y travels through the center of the corresponding yarn traveling space 1 in Figure 3A.
(3) Then, the compressor described above is used to guide compressed air into the second fluid channel 9 shown in Figure 2. Thus, as shown in Figure 3A, injection of the fluid into the yarn traveling space 1 through the fluid injecting hole 3 is started. Consequently, the interlacing of the multifilament yarns Y is started.

Now, the flow of the fluid injected into the yarn traveling space 1 as described above will be described in detail with reference to Figures 3A and 3B. That is, as shown in Figure 3A, the fluid injected into the yarn traveling space 1 through the fluid injecting hole 3 flows along the line C and collides against a groove bottom 13 of the groove 12, denoted by reference numeral (c). The flow is then divergently divided into two fractions in the juxtaposition direction. The fractions of the fluid diverged in the juxtaposition direction flow, in a circular arc, along a curved surface 14 the contour of which is shown by reference numerals (b) and (d). Then, as shown in Figure 3B, the fractions of the fluid diverged in the juxtaposition direction mostly form a whirling current flowing in a spiral along the curved surface 14. The whirling current is then blown out from the opposite ends of the groove 12. In Figure 3, the yarn inserting gap 5 is drawn to be thicker than the actual one for easy understanding of the structure of the multiple yarn interlacing device 100. However, the function of the yarn inserting gap 5 is only to introduce the multifilament yarn Y from the exterior into the yarn traveling space 1. Thus, the thickness of the yarn inserting gap 5 is set to a very small value, for example, about 0.1 mm. Consequently, most of the fluid injected into the yarn traveling space 1 can be blown out from the opposite ends of the groove 12 without being blown out to the exterior via the yarn inserting gap 5. Moreover, since in this configuration, the plurality of yarn traveling spaces 1 are arranged adjacent to one another, there is almost no difference in pressure between the adjacent yarn traveling spaces 1. Thus, almost no flow of the fluid is generated which moves forward and backward through the yarn inserting gap 5 between the adjacent yarn traveling spaces 1. Also in this sense, it can be said that the fluid injected into the yarn traveling space 1 can be blown out from the opposite ends of the groove 12 without being blown out to the exterior via the yarn inserting gap 5.
As described above, in the present embodiment, the multiple yarn interlacing device 100, which interlaces the plurality of multifilament yarns Y, is configured as follows. The multiple yarn interlacing device 100 comprises the first member 2 having the plurality of yarn traveling spaces 1 formed therein as spaces trough which the respective multifilament yarns Y travel, and the second member 4 having the plurality of fluid injecting holes 3 through which the fluid to be injected into the respective yarn traveling spaces 1 flows. With the above-described configuration, the device interlacing the plurality of multifilament yarns Y can be inexpensively provided using a reduced number of components. Furthermore, compared to the configuration in the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 9-250043 , the configuration according to the present embodiment enables a reduction in the pitch of the yarn paths of the plurality of multifilament yarns Y.
The above-described multiple yarn interlacing device 100 is further configured as described below. That is, each of the yarn traveling spaces 1 is composed of the groove 12, formed in the first member 2, and the second surface 11, formed on the second member 4. This configuration enables a reduction in processing costs compared to a configuration in which each of the yarn traveling spaces 1 comprises a combination of grooves.
The above-described multiple yarn interlacing device 100 is further configured as follows. That is, each of the yarn traveling spaces 1 extends inward in the direction of the flow of the fluid injected into the traveling space 1. This configuration allows a whirling current of the fluid to be efficiently formed in the yarn traveling space 1. The present inventors believe that the whirling current contributes significantly to interlacing the multifilament yarns Y.
The above-described multiple yarn interlacing device 100 is further configured as follows. That is, each of the yarn traveling spaces 1 is I ine-symmetric with respect to the direction of the flow of the fluid injected into the yarn traveling space 1. With this configuration, the state of the flow of the fluid injected into the yarn traveling space 1 is line-symmetric. The present inventors believe that the line symmetry contributes significantly to interlacing the multifilament yarns Y.
The above-described multiple yarn interlacing device 100 is further configured as follows. That is, the first member 2 and the second member 4 are fixed to each other across the yarn inserting gap 5 into which each the multifilament yarns Y can be inserted. Each of the multifilament yarns Y is inserted into the yarn traveling space 1 via the yarn inserting gap 5. With this configuration, a configuration enabling each of the multifilament yarns Y to be inserted into the corresponding yarn traveling space 1 can be provided without a movable portion.
The preferred embodiment of the present invention has been described. However, the above-described embodiment can be varied as follows.

First, a first variation of the above-described embodiment will be described with reference to Figure 4. Duplicate descriptions of the first embodiment are omitted as required. Figure 4 is a diagram which is similar to Figure 3 and which relates to a first variation of the first embodiment of the present invention. The multiple yarn interlacing device 100 according to the present variation is configured as follows. That is, grooves 15a each having a semicircular cross section are formed in the first surface 10 of the first member 2. Grooves 15b each also having a semicircular cross section are formed in the second surface 11 of the second member 4 opposite the respective grooves 15a. Each of the grooves 15a is located opposite the corresponding groove 15b to form the yarn traveling space 1 with a substantially circular cross section. In other words, the first variation is of a type in which only a part of the yarn traveling space 1 is formed in the first member 2.

Now, a second variation of the above-described embodiment will be described with reference to Figure 5. Duplicate descriptions of the above-described first embodiment are omitted as required. Figure 5 is a diagram which is similar to Figure 3 and which relates to a second variation of the first embodiment of the present invention. The multiple yarn interlacing device 100 according to the present variation is configured as follows. That is, cylindrical through-holes 16 that do not cross the first surface 10 are drilled in the first member 2. Slits 17 are formed which allow the through-holes 16 to communicate with the first surface 10. Each of the slits 17 allows the multifilament yarn Y to be introduced from the exterior into the corresponding through-hole 16 from a direction perpendicular to the yarn traveling direction. Thus, the thickness of the slit 17 is set to a very small value, for example, 0.1 mm. The through-holes 16 correspond to the yarn traveling spaces 1 according to the first embodiment. On the other hand, a part of the fluid injecting hole 3, through which the fluid flows, is drilled in the first member 2 as shown at reference numeral 18. In other words, the second variation is of a type in which only a part of the fluid injecting hole 3 is formed in the second member 4.
Now, a second embodiment of the present invention will be described with reference to the drawings. Figure 6 is a front view of a multiple yarn interlacing device according to the second embodiment of the present invention. Figure 7 is a plan view of the multiple yarn interlacing device 100 according to the second embodiment of the present invention. In Figure 6, for smooth understanding of the characteristics of the present embodiment, the relative positional relationship between the combination of the first member 2 and the third member 6, and the combination of the second member 4 and the fourth member 7 is turned upside down in the sheet of the figure. Duplicate descriptions of the above-described first embodiment are omitted as required.
The multiple yarn interlacing device 100 according to the present embodiment has no gap corresponding to the yarn inserting gap 5, shown in Figure 3. The first surface 10 of the first member 2 abuts substantially air-tightly against the second surface 11 of the second member 4. The first member 2 and the fourth member 4 are configured so as to switchably abut against and move away from each other. Specifically, the first member 2 is fixed relative to the yarn paths of the plurality of multifilament yarns Y shown in Figure 7. On the other hand, the second member 4 is movable relative to the first member 2. The fourth member 7 (second member 4) is pivotably provided on the third member 6 (first member 2) via a shaft 18 provided at one end of the third member 6 in the juxtaposition direction and extending in the opposite direction.
As shown in Figure 7, a small protrusion 19 is formed at an end of the first member 2 which is located opposite the shaft 18 across the yarn traveling space

1. A recess 20 is formed in the second member 4 so as to be engageable with the protrusion 19. In this configuration, the fourth member 7 (second member 4) is caused to pivot clockwise in the figure around the shaft 18 to engage the protrusion 19 with the recess 20. This limits further pivoting of the fourth member 7. The operator can easily disengage the protrusion 19 from the recess 20.

With the above-described configuration, interlacing of the plurality of multifilament yarns Y is started.

(1) First, the fourth member 7 is caused to pivot around the shaft 18 through at least 90 degrees from a state in which the first member 2 and the second member 4 abut against each other as shown in Figure 6, that is, a closed state, to a state in which the first member 2 and the second member 4 are away from each other as shown in Figure 7, an open state. Thus, the plurality of yarn traveling spaces 1 are significantly exposed to the exterior.
(2) Then, the plurality of multifilament yarns Y are inserted into the respective yarn traveling spaces 1 at a time using the suction gun (not shown in the drawings) sucking and catching the plurality of multifilament yarns Y with predetermined intervals maintained among the yarns Y. Then, the operator checks whether or not the traveling multifilament yarns Y accommodated in the respective yarn traveling spaces 1 are traveling correctly. The multifilament yarns Y are simultaneously set on the guide roller (not shown in the drawings) on the downstream side of the multiple yarn interlacing device 100.
(3) The fourth member 7 is caused to pivot again around the shaft 18 through at least 90 degrees from the open state shown in Figure 7 to the closed state shown in Figure 6 to engage the recess 20 with the protrusion 19. In this case, the operator has already confirmed in (2) state, described above, that the multifilament yarns Y are accommodated in the yarn traveling spaces 1. This prevents the multifilament yarns Y from being disadvantageously sandwiched between the second member 4 and the first member 2 when the fourth member 7 is caused to pivot to the closed state shown in Figure 7. With the above-described operations, the engagement between the protrusion 19 and the recess 20 limits the pivoting of the second member 4 with respect to the first member 2 and enables the second member 4 to abut substantially air-tightly against the first member 2.
(4) Then, the compressor (not shown in the drawings) is connected to the second fluid channe 19. A fluid, for example, compressed air, is supplied to the second fluid channe 19.

As described above, the multiple yarn interlacing device 100 according to the present embodiment is configured as follows. That is, the first member 2 and the second member 4 are configured so as to be able to abut against and move away from each other. According to this configuration, (a) the first member 2 and the second member 4 abut against each other to make it possible to prevent the fluid injected into each of the yarn traveling spaces 1 from being blown out from between the first member 2 and the second member 4, and to prevent each of the multifilament yarns Y from jumping out. Furthermore, (b) the first member 2 and the second member 4 move away from each other to facilitate the operation of insert the multifilament yarn Y into the corresponding yarn traveling space 1. Moreover, the multifilament yarn Y can be prevented from jumping out from the yarn traveling space 1.
The above-described multiple yarn interlacing device 100 is further configured as follows. That is, the first member 2 is fixed relative to the yarn paths of the plurality of multifilament yarns Y. The second member 4 is movable relative to the first member 2. With this configuration, even when the first member 2 and the second member 4 abut against or move away from each other, the relative positional relationship between the yarn paths of the multifilament yarns Y and the respective yarn traveling spaces remains unchanged. Thus, in this sense, degradation of the quality of the multifilament yarns Y can be avoided.
The above-described multiple yarn interlacing device 100 is further configured as follows. That is, the second member 4 is pivotably provided on the first member 2. This configuration allows the first member 2 and the second member 4 to abut against and move away from each other using a simple configuration.
A third embodiment of the present invention will be described with reference to the drawings. Figure 8 is a front view of a multiple yarn interlacing device according to the third embodiment of the present invention. Duplicate descriptions of the second embodiment are omitted as required.
In the multiple yarn interlacing device 100 according to the present embodiment, the above-described shaft 18 extends in the yarn traveling direction unlike in the case of the second embodiment. The fourth member 7 (second member 4) is pivotably provided on the third member 6 (first member 2) via the shaft 18, extending in the yarn traveling direction. Furthermore, a schematically shown permanent magnet 21 is buried in an area corresponding to the area where the above-described protrusion 19 formed. Similarly, a schematically shown permanent magnet 22 is buried in an area corresponding to the area where the above-described recess 20 is formed. The multiple yarn interlacing device 100 is configured such that the permanent magnet 21 and the permanent magnet 22 act magnetically on each other to enable the first member 2 and the second member 4 to abut substantially air-tightly against each other and such that this abutment state can be canceled as required.
A fourth embodiment of the present invention will be described with reference to the drawings. Figure 9 is a front view of a multiple yarn interlacing device 100 according to the fourth embodiment of the present invention. Duplicate descriptions of the second embodiment are omitted as required.
As shown in Figure 9, the third member 6 according to the present embodiment extends long in the juxtaposition direction. The extension length of the third member 6 is double that of the first member 2. An extension portion 6a of the third member 6 which does not overlap the first member 2 has a guide rail 23 that slidably holds a coupling portion 7c extending perpendicularly from one end of the fourth member 7 in the juxtaposition direction toward the extension portion 6a. The present embodiment is configured such that the guide rail 23 couples the third member 6 and the fourth member 7 together so that the fourth member 7 is movable relative to the third member 6 in the juxtaposition direction. A possible configuration for reliably switching between the open state shown by a solid line and the closed state shown by an alternate long and two short dashes line is the combination of the protrusion 19 and the recess 20 shown in Figure 7 or the combination of the permanent magnet 21 and the permanent magnet 22 shown in Figure 8, the combination being similarly applied to the third member 6 and fourth member 7 shown Figure 9.
As described above, the multiple yarn interlacing device 100 is further configured as follows. That is, the second member 4 is slidable relative to the first member 2. This configuration allows the first member 2 and the second member 4 to abut against and move away from each other using a simple configuration.
The preferred second to fourth embodiments of the present invention have been described. However, the above-described embodiments can be varied as follows. That is, for example, a possible configuration is the second member 4 that is simply removable from the first member 2. The removable configuration can be provided utilizing, for example, a mechanical coupling force exerted using bolt tightening or the like, or a magnetic coupling force exerted using permanent magnets or the like.
While the present invention has been described with respect to preferred embodiments thereof, it will be apparent to those skilled in the art that the disclosed invention may be modified in numerous ways and may assume many embodiments other than those specifically set out and described above. Accordingly, it is intented by the appended claims to cover all modifications of the present invention that fall within the true spirit and scope of the invention.

Claims

A multiple yarn interlacing device that interlaces a plurality of yarns, the device being characterized by comprising:
a first member having a plurality of yarn traveling spaces at least partly formed therein as spaces through which the respective yarns travel; and

a second member having a plurality of fluid channels at least partly formed therein through which a fluid to be injected into the respective yarn traveling spaces flows.
A multiple yarn interlacing device according to Claim 1, characterized in that each of the yarn traveling spaces comprises a combination of a groove formed in the first member and a surface formed on the second member.
A multiple yarn interlacing device according to Claim 1 or Claim 2,
characterized in that each of the yarn traveling spaces extends inward in a direction of flow of the fluid injected into the traveling space.
A multiple yarn interlacing device according to any one of Claim 1 to Claim 3, characterized in that each of the yarn traveling spaces is line-symmetric with respect to the direction of the flow of the fluid injected into the yarn traveling space.
A multiple yarn interlacing device according to any one of Claim 1 to Claim 4, characterized in that the first member and the second member are fixed to each other across a yarn inserting gap into which each of the yarns can be inserted, and each of the yarns is inserted into the yarn traveling space via the yarn inserting gap.
A multiple yarn interlacing device according to any one of Claim 1 to Claim 4, characterized in that the first member and the second member are configured to be able to abut against and move away from each other.
A multiple yarn interlacing device according to Claim 6, characterized in that the first member is fixed relative to yarn paths of the plurality of yarns, and the second member is movable relative to the first member.
A multiple yarn interlacing device according to Claim 6 or Claim 7, characterized in that the second member is pivotably provided on the first member.
A multiple yarn interlacing device according to Claim 6 or Claim 7, characterized in that the second member is slidable relative to the first member.