JP5758869B2 - Bead weaving machine - Google Patents

Description

  The present invention relates to a bead weaving machine used for producing a bead fabric in which beads are woven.

  Conventionally, a bead weaving machine for producing a bead fabric in which beads are woven is known (see, for example, Patent Document 1). The bead weaving machine described in Patent Document 1 is a pair of left and right side plates opposed to each other at an interval in the left-right direction and a pair of thread winding rods (first 1 and a second thread fixing shaft) and a pair of spiral spring holding rods (first and second thread support shafts) rotatably connected to both side plates and spaced apart in the front-rear direction. One thread fixing shaft fixes one end of a plurality of warp threads, and the other thread fixing shaft fixes the other end of the plurality of warp threads. One yarn support shaft supports one end side intermediate portion of a plurality of warp yarns in parallel, and the other yarn support shaft supports the other end side intermediate portion of a plurality of warp yarns in parallel. . When the bead weaving machine having such a configuration is used, as shown in FIG. 1 of the same document, wefts inserted through the beads are woven into a plurality of warp yarns each extending in the front-rear direction and arranged in the left-right direction. Thus, a bead fabric can be produced. And as understood from paragraph 0009 of the specification of Patent Document 1, each bead in the bead fabric is sandwiched between adjacent warps.

  When producing a bead fabric having a long overall length of warp, first, the warp is wound around one thread fixing shaft. Next, a weft weaving operation is performed between the first and second yarn support shafts to form a fabric portion (see FIG. 2 of Patent Document 1). Next, while rotating one of the yarn fixing shafts to feed out the warp yarn, the other yarn fixing shaft is rotated to wind up the fabric portion. Then, weft weaving work is carried out on the newly drawn warp. By repeating such operations, a long bead fabric can be produced.

  On the other hand, when producing a bead fabric in which the overall length of the warp is relatively short, as shown in FIG. 1 of Patent Document 1, a thread stop bar for attaching the warp to each thread fixing shaft is attached. By using the thread stopper, the warp thread is hooked so as to extend in the front-rear direction and to be arranged in a plurality on the left and right. According to such a structure, a bead fabric can be produced in the range of the length between both yarn support shafts.

  In the bead weaving machine disclosed in Patent Document 1, a spiral spring is attached to a spiral spring holding rod (yarn support shaft). As shown in FIGS. 1 to 3 of the document, the spiral spring extends along the axial direction of the spiral spring holding rod and is disposed at a position facing the upper side of the spiral spring holding rod. When a plurality of warp yarns are supported by the spiral spring holding rod, as shown in FIGS. 1 and 2 of the same document, the intervals between these warp yarns are determined by entering the inside of the spiral spring. While being supported by the spiral spring holding rod.

  About the bead which comprises bead textiles, the thing of multiple types from which the length (the dimension between the surfaces pinched | interposed into the adjacent warp) differs is prepared. When making a bead fabric, for example, depending on the design of the bead fabric, a bead of any length selected, such as a relatively large bead or a relatively small bead, is used. used.

  However, when producing a bead fabric using the conventional bead weaving machine, the intervals between the warp yarns defined by the helical springs are uniform. For this reason, in the weaving operation, it is difficult to stably sandwich any of a plurality of types of beads having different lengths between the warps. That is, when using beads having a large length, the interval between adjacent warp yarns becomes relatively narrow, and the beads must be forcibly sandwiched between the warp yarns. On the other hand, when beads having a small length are used, the interval between adjacent warp yarns becomes relatively wide, and it may occur that the beads sandwiched between the yarns fall off or cannot be pinched well.

Japanese Utility Model Publication No. 6-6469

  The present invention has been conceived under such circumstances, and provides a bead weaving machine suitable for performing stable weaving work when any of beads having different lengths is used. The challenge is to do.

  In order to solve the above problems, the present invention takes the following technical means.

The bead weaving machine provided by the present invention includes a left side plate and a right side plate facing each other at a predetermined interval in the left-right direction, a first yarn fixing shaft for fixing one end of a plurality of warp yarns, and a plurality of yarns. A second yarn fixing shaft for fixing the other end of the warp yarn, the first yarn fixing shaft located at the front, wherein both ends of the second yarn fixing shaft are rotatably connected to the left side plate and the right side plate; A first and second thread support shafts for supporting, in parallel, a second thread fixing shaft located rearward and one end side intermediate part and the other end side intermediate part of a plurality of warp threads, A first yarn support shaft located at the front and a second yarn support shaft located at the rear, both ends of which are connected to the plate and the right side plate so as to be rotatable. Are arranged at a predetermined pitch in the axial direction And the thread support portion having a groove of the number provided in plurality at different positions in the circumferential direction, and Tsu different pitch of the grooves in each of the plurality of thread support portion to each other, each groove has a V-shaped cross section In addition, the bottom portion is tapered, and the warp thread fitted into the groove portion is configured to be able to contact a pair of convex portions sandwiching the groove portion .

  In a preferred embodiment, each of the thread support shafts has a substantially cylindrical outer peripheral surface, and the plurality of thread support portions protrude outward in the radial direction from the outer peripheral surface of each of the thread support shafts.

  In a preferred embodiment, the yarn support portion has a plurality of through holes formed so as to intersect with the plurality of groove portions from one end side to the other end side of each yarn support shaft.

  In a preferred embodiment, each of the thread support shafts is detachably provided with a thread hooking rod that projects outward in the radial direction and that hooks the warp thread.

  In a preferred embodiment, the thread hook is provided between the thread support portions adjacent to each other in the circumferential direction of the thread support shafts.

  In a preferred embodiment, a threaded shaft that protrudes outside one of the left side plate and the right side plate on one end side of each thread support shaft and rotates together with each thread support shaft; and A first operating portion provided on the other side of the other side of the left side plate and the right side plate and rotating together with the respective thread support shafts; a second operating portion having a screw hole meshing with the screw shaft; The operation means including is provided.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a perspective view which shows an example of the bead weaving machine which concerns on this invention. It is a top view of the bead weaving machine shown in FIG. It is a front view of the bead weaving machine shown in FIG. It is a left view of the bead weaving machine shown in FIG. It is a fragmentary sectional view which follows the VV line of FIG. FIG. 6 is a partial cross-sectional view taken along line VI-VI in FIG. 2. It is sectional drawing which follows the VII-VII line of FIG. It is sectional drawing which follows the VIII-VIII line of FIG. It is sectional drawing which follows the IX-IX line of FIG. It is a fragmentary sectional view which follows the XX line of FIG. It is the fragmentary perspective view which looked at the inner side of the left back side board from diagonally downward. It is a fragmentary sectional view which follows the XII-XII line | wire of FIG. It is sectional drawing similar to FIG. 5 for demonstrating the operation means concerning a thread | yarn fixing shaft. It is sectional drawing similar to FIG. 6 for demonstrating the operation means concerning a thread | yarn support shaft. It is sectional drawing similar to FIG. 12 for demonstrating a length adjustment means. It is a whole top view for demonstrating the usage method of a bead weaving machine. It is principal part sectional drawing for demonstrating the usage method of a bead weaving machine. It is a perspective view for demonstrating the beading procedure of beads. It is a whole top view for demonstrating the usage method of a bead weaving machine. It is sectional drawing which follows the XX-XX line of FIG.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  1 to 4 show an embodiment of a bead weaving machine according to the present invention. As best shown in FIGS. 1 and 2, the bead weaving machine A of this embodiment includes a left front side plate 1C and a right front side plate 1D, a left rear side plate 1A and a right rear side plate 1B, and a thread fixing shaft 2B. , 2A, thread support shafts 3B, 3A, connecting portions 4A, 4B, length adjusting means 5, and operating means 6, 7 are used to produce a bead woven with beads. Is.

  The left front side plate 1C and the right front side plate 1D are opposed to each other at a predetermined interval in the left-right direction. The left rear side plate 1A and the right rear side plate 1B are positioned behind them corresponding to the left front side plate 1C and the right front side plate 1D, respectively, and face each other at a predetermined interval in the left-right direction.

  The yarn fixing shaft 2B fixes one end of a plurality of warp yarns, and both ends are connected to both front side plates 1C and 1D. The yarn fixing shaft 2A fixes the other ends of a plurality of warp yarns, and both ends are connected to both rear side plates 1A and 1B. The thread fixing shaft 2B is positioned forward, and the thread fixing shaft 2A is positioned rearward.

  The yarn support shaft 3B supports one end side intermediate portions of a plurality of warp yarns in parallel, and both end portions are connected to both front side plates 1C and 1D. The yarn support shaft 3A supports the middle portion on the other end side of the plurality of warp yarns in parallel, and both end portions are connected to both rear side plates 1A and 1B. These yarn support shafts 3B and 3A are higher than the yarn fixing shafts 2B and 2A, and are positioned between the yarn fixing shafts 2B and 2A in the front-rear direction.

  The connecting portion 4A connects the left front side plate 1C and the left rear side plate 1A, and the connecting portion 4B connects the right front side plate 1D and the right rear side plate 1B.

  Next, the structure of the thread fixing shaft 2A and the connection structure of the thread fixing shaft 2A to both rear side plates 1A and 1B will be described. Since the structure of the thread fixing shaft 2B and the connection structure of the thread fixing shaft 2B to the front side plates 1C and 1D are the same as those of the thread fixing shaft 2A, the thread fixing shaft 2A will be mainly described. Description of 2B will be omitted as appropriate.

  As shown in FIG. 5, cylindrical rotating shafts 211 and 212 are provided at both ends of the thread fixing shaft 2A. The rotating shafts 211 and 212 are inserted into holes 11 and 11 formed in both rear side plates 1A and 1B. Thereby, the thread fixing shaft 2A is rotatably supported by both the rear side plates 1A and 1B. A shaft end portion 213 is provided on the outer side in the axial direction of the rotation shaft 211 on the left rear side plate 1A side of the thread fixing shaft 2A. The shaft end 213 has a polygonal cross section (for example, a hexagonal shape) (see FIG. 7). In a state where the thread fixing shaft 2A is connected to both the rear side plates 1A and 1B, the shaft end portion 213 protrudes outside the left rear side plate 1A. The yarn fixing shaft 2A has an axial hole 214 that penetrates in the axial direction connecting both ends. A pair of recesses 215 for fixing the warp yarn extending in the axial direction is provided on the outer peripheral surface of the yarn fixing shaft 2A.

  The shaft member 25 is inserted through the shaft hole 214 of the yarn fixing shaft 2A. The shaft member 25 has a round bar shape with a screw shaft 251 provided at the tip. A shaft member end 252 having a polygonal cross section (for example, a hexagonal shape) is provided at the base end of the shaft member 25 (see FIG. 8). As shown in FIG. 5, the operation portion 26 is attached to the shaft member end portion 252. The operation unit 26 is provided outside the left rear side plate 1A. Concave portions 261 and 262 are formed in the operation unit 26. The recess 261 has a cross-sectional shape corresponding to the shaft member end 252, and the shaft member end 251 is fitted in the recess 261. Thereby, the operation part 26 and the shaft member 25 are not relatively rotatable. A shaft end 213 is fitted into the recess 262. Thereby, the operation part 26 and the thread | yarn fixing shaft 2A cannot be rotated relatively. As understood from the above, the yarn fixing shaft 2A, the shaft member 25, and the operation portion 26 are not rotatable relative to each other. Accordingly, when the operation unit 26 is turned, the thread fixing shaft 2A and the shaft member 25 (screw shaft 251) rotate together with the operation unit 26.

  As shown in FIG. 5, the operation unit 27 is attached to the screw shaft 251 of the shaft member 25. A concave portion 271 is formed in the operation portion 27, and a nut 28 having a screw hole 281 is fitted into the concave portion 271. The screw hole 281 is engaged with the screw shaft 251. With such a structure, when the operation portion 27 (nut 28) is turned in the direction in which the screw shaft 251 is tightened, the interval between the operation portions 26 and 27 is narrowed and is sandwiched between the operation portions 26 and 27 via both rear side plates 1A and 1B. The thread fixing shaft 2A thus prevented from rotating. On the other hand, when the operation portion 27 (nut 28) is turned in the direction of loosening the screw shaft 251, the space between the operation portions 26 and 27 is widened as shown in FIG. 13, and the rotation of the thread fixing shaft 2A is allowed. .

  Although detailed illustration explanation is omitted about the thread fixing shaft 2B, the shaft end portion 213 extends outward from the right front side plate 1D, and the operation portion 26 is provided outside the right front side plate 1D. In addition, an operation unit 27 having a screw hole 281 that meshes with the screw shaft 251 is provided outside the left front side plate 1C.

  The yarn fixing shafts 2A and 2B having the above-described configuration are made of synthetic resin such as polyacetal resin, for example, and two members divided in the radial direction are integrally joined.

  The operating means 6 is for rotating the thread fixing shafts 2A and 2B, and includes the shaft member 25 and the operating portions 26 and 27 described above.

  Next, the structure of the yarn support shaft 3A and the connection structure of the yarn support shaft 3A to both rear side plates 1A and 1B will be described. Since the structure of the thread support shaft 3B and the connection structure of the thread support shaft 3B to both the front side plates 1C and 1D are the same as in the case of the thread support shaft 3A, the thread support shaft 3A will be mainly described. Description of 3B will be omitted as appropriate.

  As shown in FIG. 6, cylindrical rotating shafts 311 and 312 are provided at both ends of the yarn support shaft 3A. The rotating shafts 311 and 312 are inserted into holes 12 and 12 formed in both rear side plates 1A and 1B. Thereby, the yarn support shaft 3A is rotatably supported by both the rear side plates 1A and 1B. Further, a shaft end 313 is provided on the outer side in the axial direction of the rotation shaft 311 on the left rear side plate 1A side of the yarn support shaft 3A. The shaft end 313 has a polygonal cross section (for example, a hexagonal shape) as in the case of the yarn fixing shaft 2A. In a state in which the yarn support shaft 3A is connected to both the rear side plates 1A and 1B, the shaft end portion 313 protrudes outside the left rear side plate 1A. The yarn support shaft 3A has an axial hole 314 penetrating in the axial direction connecting both ends.

  A shaft member 35 is inserted through the shaft hole 314 of the yarn support shaft 3A. The shaft member 35 has a round bar shape with a screw shaft 351 provided at the tip. A shaft member end portion 352 having a polygonal cross section (for example, a hexagonal shape) is provided at the base end of the shaft member 35 as in the case of the yarn fixing shaft 2A. An operation unit 36 is attached to the shaft member end 352. The operation unit 36 is provided outside the left rear side plate 1A. Concave portions 361 and 362 are formed in the operation unit 36. The recess 361 has a cross-sectional shape corresponding to the shaft member end 352, and the shaft member end 352 is fitted in the recess 361. Thereby, the operation part 36 and the shaft member 35 cannot be rotated relative to each other. A shaft end 313 is fitted in the recess 362. Thereby, the operation part 36 and the thread | yarn support shaft 3A cannot be rotated relatively. As can be understood from the above, the yarn support shaft 3A, the shaft member 35, and the operation portion 36 cannot rotate relative to each other. Therefore, when the operation unit 36 is turned, the yarn support shaft 3 </ b> A and the shaft member 35 (screw shaft 351) rotate together with the operation unit 36.

  As shown in FIG. 6, the operating portion 37 is attached to the screw shaft 351 of the shaft member 35. A concave portion 371 is formed in the operation portion 37, and a nut 38 having a screw hole 381 is fitted into the concave portion 371. The screw hole 381 meshes with the screw shaft 351. With such a structure, when the operation portion 37 (nut 38) is turned in the direction in which the screw shaft 351 is tightened, the interval between the operation portions 36 and 37 is narrowed and is sandwiched between the operation portions 36 and 37 via both rear side plates 1A and 1B. The thread support shaft 3A thus prevented from rotating. On the other hand, when the operation portion 37 (nut 38) is turned in the direction of loosening the screw shaft 351, the interval between the operation portions 36 and 37 is widened as shown in FIG. 14, and the rotation of the yarn support shaft 3A is allowed. .

  On the outer periphery of the yarn support shaft 3A, a plurality of (two in this embodiment) yarn support portions 32 and 33 for supporting warp yarns are provided. The yarn support portions 32 and 33 are located at different positions in the circumferential direction of the yarn support shaft 3A and are equally arranged in the circumferential direction.

  As shown in FIGS. 1 to 3, the yarn support shaft 3 </ b> A has a substantially cylindrical outer peripheral surface 310, and the yarn support portions 32 and 33 protrude radially outward from the outer peripheral surface 310. Yes. As shown in FIG. 6, the yarn support portion 32 has a comb-like shape in which a plurality of convex portions 321 are arranged in the axial direction of the yarn support shaft 3 </ b> A, and a plurality of groove portions 322 are provided between adjacent convex portions 321. Are formed in parallel. The yarn support portion 33 is also formed in a comb-teeth shape in which a plurality of convex portions 331 are arranged in the axial direction, and a plurality of groove portions 332 are formed in parallel between adjacent convex portions 331. The groove portions 322 and 332 are arranged at a predetermined pitch in the axial direction. The pitch P1 of the groove portion 322 and the pitch P2 of the groove portion 332 are different from each other. In the present embodiment, the pitch P2 is larger than the pitch P1. Pitch P1, P2 is set in the range of about 1-5 mm, for example.

  As shown in FIG. 6, the groove portions 322 and 332 have a V-shaped cross section. In the yarn support portions 32 and 33, through-holes 323 and 333 are formed in the convex portions 321 and 331 so as to penetrate in the axial direction of the yarn support shaft 3A. The plurality of through holes 323 of the yarn support portion 32 intersect with the plurality of groove portions 322 from one end side to the other end side of the yarn support shaft 3A. Similarly, the plurality of through holes 333 of the yarn support portion 33 intersect with the plurality of groove portions 332 from one end side to the other end side of the yarn support shaft 3A.

  As shown in FIG. 3, the outer peripheral surface 310 of the yarn support shaft 3 </ b> A is provided with scales 324 and 334 corresponding to the yarn support portions 32 and 33. The scales 324 and 334 are formed corresponding to the predetermined number of grooves 322 and 332.

  An attachment hole 341 for attaching a thread hook 34 described later is also formed on the outer peripheral surface 310 of the yarn support shaft 3A. The attachment holes 341 are provided at different positions in the circumferential direction of the yarn support shaft 3A. As shown in FIG. 10, a plurality of attachment holes 341 are arranged along the axial direction between the adjacent thread support portions 32 and 33 in the circumferential direction of the thread support shaft 3 </ b> A. Therefore, the thread hook 34 can be detachably provided between the thread support portions 32 and 33 adjacent to each other.

  Although detailed illustration and description of the yarn support shaft 3B is omitted, the shaft end portion 313 extends outward from the right front side plate 1D, and an operation portion 36 is provided outside the right front side plate 1D. In addition, an operation portion 37 having a screw hole 381 that meshes with the screw shaft 351 is provided outside the left front side plate 1C. Similar to the yarn support shaft 3A, the yarn support shaft 3B is provided with yarn support portions 32 and 33, scales 324 and 334, and attachment holes 341. About these elements, the same code | symbol is attached | subjected to drawing and description is abbreviate | omitted.

  The yarn support shafts 3A and 3B having the above-described configuration are made of synthetic resin such as polyacetal resin, and two members divided in the radial direction are integrally joined.

  The operation means 7 is for rotating the yarn support shafts 3A and 3B, and includes the shaft member 35 and the operation portions 36 and 37 described above.

  Next, a connecting structure between the connecting portion 4A and the left rear side plate 1A and the left front side plate 1C and a connecting structure between the connecting portion 4B and the right rear side plate 1B and the right front side plate 1D will be described. The connecting structure between the connecting portion 4A and the left front side plate 1C and the connecting structure between the connecting portion 4B and the right rear side plate 1B and the right front side plate 1D are the same as the connecting structure between the connecting portion 4A and the left rear side plate 1A. Therefore, the connection structure between the connection portion 4A and the left rear side plate 1A will be mainly described, and description of other connection structures will be omitted as appropriate.

  As shown in FIGS. 5, 6, and 11, the left rear side plate 1 </ b> A includes a rail-shaped concave groove 13, a plurality of groove portions 14, and a long hole 15. The concave groove 13 extends in the front-rear direction on the inner side in the left-right direction of the left rear side plate 1A. The plurality of grooves 14 are formed at the bottom of the groove 13, each of which has a V-shaped cross section and is continuous in the front-rear direction. The grooves 14 are arranged at a predetermined pitch P3 in the front-rear direction. An example of the pitch P3 of the groove 14 is about 1 cm. The long hole 15 penetrates in the left-right direction and extends in the front-rear direction, and is partially provided in a region where the plurality of groove portions 14 are formed.

  As shown in FIGS. 1, 2, 5, and 12, the connecting portion 4 </ b> A extends in the front-rear direction and has a flat plate shape with a long rectangular cross section. The connecting portion 4A is accommodated in the concave groove 13 of the left rear side plate 1A, and in this accommodated state, the connecting portion 4A is movable relative to the left rear side plate 1A. A plurality of protrusions 411 are provided at predetermined intervals in the front-rear direction on the outer side of the connecting portion 4A in the left-right direction. The protrusion 411 has a V-shaped cross section and can be fitted into each groove 14 of the left rear side plate 1A.

  The connecting portion 4A is provided with a screw hole 412 that opens to the outside in the left-right direction. In the present embodiment, the screw holes 412 are provided in regions where the protrusions 411 are formed. For example, the connecting portion 4A is formed with a hole 413 penetrating left and right in the center of the protruding portion 411. The screw hole 412 is configured by fitting a nut having the screw hole 412 from the inside of the protruding portion 411. Is done. As shown in FIGS. 5 and 12, the screw hole 412 faces the long hole 15, and the tightening bolt 43 is screwed into the screw hole 412 from the outside in the left-right direction through the long hole 15.

  As clearly shown in FIG. 4, a mark 16 is provided on the outer surface of the left rear side plate 1 </ b> A at a position corresponding to each groove portion 14. The marks 16 are arranged at the same pitch as the pitch P3 of the grooves 14. In addition, as shown in FIGS. 1, 2, and 4, a marked line 414 is formed on the upper surface of the connecting portion 4 </ b> A by a recess with the protrusion 411 as a reference. The marked lines 414 are arranged at the same pitch as the pitch P3 of the grooves 14.

  In the above configuration, when the tightening bolt 43 is loosened from the screw hole 412, the connecting portion 4A is displaced inward in the left-right direction with respect to the left rear side plate 1A. As shown in FIGS. 13 and 15, the fitting between the protrusion 411 of the connecting portion 4A and the groove portion 14 of the left rear side plate 1A is released, and the left rear side plate 1A is front and rear with respect to the connecting portion 4A. It becomes possible to move. Here, as can be understood from FIG. 15, the left rear side plate 1 </ b> A can move back and forth within the range of the longitudinal length of the long hole 15 through which the tightening bolt 43 is passed.

  On the other hand, when the tightening bolt 43 is tightened in the screw hole 412, the protrusion 411 is fitted into the groove portion 14, and the back-and-forth movement between the connecting portion 4A and the left rear side plate 1A is prevented. Here, since the groove portions 14 are continuously arranged at the predetermined pitch P3 in the front and rear, the protrusions 411 are fitted into the respective groove portions 14, so that the relative position between the connecting portion 4A and the left rear side plate 1A is the pitch. It is made to change in steps for every P3. Therefore, as understood from FIGS. 2 and 15, the length from the rear end of the left front side plate 1C to the front end of the left rear side plate 1A can be adjusted stepwise.

  Similar to the left rear side plate 1A, the left front side plate 1C, the right rear side plate 1B, and the right front side plate 1D are each provided with a concave groove 13, a plurality of groove portions 14, a long hole 15, and a mark 16. About these elements, the same code | symbol is attached | subjected to drawing and description is abbreviate | omitted.

  In the connecting portion 4A, as shown in FIG. 4, three projecting portions 411 are provided at the front and rear sides at a predetermined interval. These three protrusions 411 are used for connection with the left front side plate 1C. By changing the projection 411 used for the connection, the relative position between the connection portion 4A and the left front side plate 1C can be changed in multiple stages for each pitch P3.

  Similar to the connecting portion 4A, the connecting portion 4B is provided with a protruding portion 411, a screw hole 412, and a hole 413. About these elements, the same code | symbol is attached | subjected to drawing and description is abbreviate | omitted.

  As can be understood from the above configuration, the relative positions of the connecting portions 4A and 4B and the rear side plates 1A and 1B can be changed stepwise for each pitch P3. Further, the relative positions of the connecting portions 4A, 4B and the front side plates 1C, 1D can also be changed stepwise for each pitch P3. And the length from the rear end of both front side board 1C, 1D to the front end of both rear side board 1A, 1B can be adjusted in steps.

  The protrusions 411 and screw holes 412 provided in the connecting parts 4A and 4B, and the plurality of grooves 14 and long holes 15 provided in the side plates 1A, 1B, 1C and 1D constitute the length adjusting means 5. To do.

  Next, a method of performing a bead weaving operation using the bead weaving machine A will be described with reference to FIGS.

  A case where a bead woven fabric having a relatively short overall warp length will be described. In this case, first, the thread hook 34 is attached to the attachment holes 341 of the thread support shafts 3B and 3A. Next, for example, one end of the yarn is fixed to the yarn hooking rod 34 of the yarn support shaft 3B, and the yarn is fitted into the groove portion 322 of the yarn support shafts 3B and 3A while extending forward and backward. Next, the yarn is wound around the yarn hooking rod 34 of the yarn support shaft 3A, and the yarn is extended in the front-rear direction and fitted in the groove portion 322 adjacent to the groove portion 322 in which the yarn is already fitted. This operation is repeated, and the other end of the warp T1 is fixed to the yarn hooking rod 34. In this way, as shown in FIG. 16, a plurality of warp threads T1 are supported side by side by the thread support shafts 3B and 3A. In the present embodiment, a plurality of thread hooks 34 are arranged along the axial direction (left and right direction) of the thread support shafts 3B and 3A, and the warp thread T1 supported by the thread support shafts 3B and 3A is the thread hook. It is divided into a plurality of areas corresponding to the bars 34.

  Next, as shown in FIG. 17, rod-like stoppers 39 are inserted into all the through holes 323 of the thread support portion 32.

  Next, the weft thread inserted from the needle tip into the bead is woven into the warp thread. Here, as shown in FIG. 18A, first, the weft T2 is lifted from the lower side so as to cross the warp T1, and each bead B is sandwiched between the adjacent warps T1. Next, as shown in FIG. 18B, the weft T2 is folded back with the warp T1 at one end in the left-right direction and passed through the hole of the bead B so as to pass above the warp T1. In this way, two wefts T2 are passed through each bead B, and the warp T1 is sandwiched between the two wefts T2 up and down. Next, the weft thread is inserted into the bead from the needle tip, and the weft thread is folded back again with the warp thread located at the other end in the left-right direction. The weft is then lifted from below so as to cross the warp and each bead is sandwiched between adjacent warps. By repeating such an operation a predetermined number of times, a bead fabric having a predetermined length in the direction (front-rear direction) in which the warp T1 extends is produced.

  Next, the stopper 39 is removed from the through-hole 323, the yarn support shafts 3B and 3A are slightly rotated, the warp yarn T1 is removed from the yarn hooking rod 34, and the bead fabric is removed from the bead weaving machine A. Then, by pulling out both ends of the warp T1, the portion that has been hung around the yarn hooking rod 34 passes through the beads and is in a completed state.

  Next, a case where a bead woven fabric having a long overall length of warp is produced will be described with reference to FIG. In this case, first, one end of a plurality of warps T1 is fixed to the yarn fixing shaft 2B. Here, the warp T1 is arranged so as to straddle the pair of recesses 215 of the yarn fixing shaft 2B. Next, the thread fixing tool 29 is attached to the thread fixing shaft 2B. As shown in FIG. 20, the thread fixing tool 29 has, for example, a substantially semicircular cross section and extends uniformly along the axial direction of the thread fixing shaft 2B. A pair of engaging portions 291 bulging in directions facing each other are provided at both end portions of the thread fixing tool 29. The thread fixing tool 29 is attached by elastically deforming the thread fixing tool 29 so that the dimension between the pair of engaging parts 291 is large, and engaging the engaging part 291 with the recess 215. When the thread fixing tool 29 is attached, the warp thread T1 is fixed by being sandwiched between the thread fixing shaft 2B and the thread fixing tool 29. Next, the yarn fixing shaft 2B is rotated to wind the warp yarn. Next, the warp yarn T1 is fitted in the groove portion 322 of the yarn support shafts 3B and 3A while extending backward. Next, the other end of the warp T1 is fixed to the yarn fixing shaft 2A. The warp yarn T1 is fixed to the yarn fixing shaft 2A in the same manner as the warp yarn T1 is fixed to the yarn fixing shaft 2B. In this way, as shown in FIG. 19, a plurality of warp threads T1 are supported side by side by the thread support shafts 3B, 3A.

  Next, as shown in FIG. 17, rod-like stoppers 29 are inserted into all the through holes 323 of the yarn support portion 32.

  Next, weaving work of the weft thread inserted into the beads is performed. The weaving work here is performed in the same manner as described above with reference to FIG. The weaving operation of the weft is advanced, and a fabric portion is formed between the yarn support shafts 3B and 3A. Next, the yarn fixing shaft 2B is rotated to feed the warp yarn, while the yarn fixing shaft 2A is rotated to wind the fabric portion around the yarn fixing shaft 2A. Then, weft weaving work is carried out on the newly drawn warp. By repeating such operations, a long bead fabric can be produced.

  Next, the operation of the bead loom A will be described.

  In the bead weaving machine A of the present embodiment, the yarn support shafts 3B and 3A are provided with a plurality of yarn support portions 32 and 33 at different positions in the circumferential direction, respectively. The yarn support portion 32 has a plurality of groove portions 322 arranged at a predetermined pitch P1 in the axial direction, and the yarn support portion 33 has a plurality of groove portions 332 arranged at a predetermined pitch P2 in the axial direction. And the pitch P1 of the groove part 322 and the pitch P2 of the groove part 332 differ from each other. According to such a configuration, when producing a bead fabric, any one of the grooves 322 and 332 having a pitch corresponding to the length of the beads B can be selected and used.

  In this embodiment, when weaving beads B having a relatively small length, as described with reference to FIGS. 16, 17, and 19, groove portions 322 having a relatively small pitch P1 are faced upward. Do not use and weave work. On the other hand, when weaving beads B having a relatively large length, the groove portions 332 having a relatively large pitch P2 are used facing upward, and the weaving operation is performed. Here, the interval between the warp T1 fitted in the groove 322 (332) is a dimension corresponding to the pitch P1 (P2) of the groove 322 (332). By using any one of them, the beads B can be appropriately sandwiched between the adjacent warp threads T1. This is suitable for performing a stable weaving operation.

  Further, groove portions 322 and 332 having different pitches P1 and P2 are provided in the respective thread support shafts 3B and 3A. And since these thread | yarn support shafts 3B and 3A can be rotated, switching of the groove parts 322 and 332 to be used can be easily performed by rotating each thread | yarn support shaft 3B and 3A suitably.

  Each groove 322 (332) has a V-shaped cross section. For this reason, as shown in FIG. 17, the warp T1 that fits in the bottom of each of the plurality of grooves 322 is prevented from moving left and right. Accordingly, the intervals between the plurality of warp T1 supported and arranged on the yarn support shafts 3B and 3A are substantially uniform. This is preferable for performing a stable weaving operation.

  The yarn support portion 32 (33) having a plurality of groove portions 322 (332) protrudes radially outward from the substantially cylindrical outer peripheral surface 310 of the yarn support shafts 3B and 3A. According to such a configuration, by using the yarn support portion 32 (33) so as to face above the yarn support shafts 3B and 3A, the warp T1 fitted in the groove portion 322 (332) is used as the yarn support shaft 3B, Contact with the outer peripheral surface 310 of 3A is avoided, and the bottom of the groove 322 (332) is reached. This is preferable for performing a stable weaving operation.

  A plurality of through holes 323 (333) are formed in the yarn support portion 32 (33) so as to intersect with the plurality of groove portions 322 (332) from one end side to the other end side of the yarn support shafts 3B and 3A. According to such a configuration, as described with reference to FIG. 17, the stopper 39 can be inserted into the through hole 323 (333) when performing the bead weaving operation. In the case of producing a bead fabric having a long overall length of the warp, when the warp T1 is fed out by rotating the thread fixing shaft 2B, the warp T1 may be slackened between the thread support shafts 3B and 3A. Then, the warp thread T1 may be lifted between the thread support shafts 3B and 3A. At this time, as can be understood from FIG. 17, the warp T1 is prevented from rising by the stopper 39 inserted in the through hole 323 (333), and the warp T1 does not come out of the groove 322 (332). This is suitable for performing a stable weaving operation.

  As shown in FIG. 16, the yarn support shafts 3B and 3A are detachably provided with a yarn hooking rod 34 for hooking the warp yarn T1. According to such a configuration, when producing a bead fabric in which the yarn support portion 32 and the yarn hooking rod 34 are close to each other and the total length of the warp yarn T1 is short, the length of the yarn wound around the yarn hooking rod 34 is long. Can be shortened. Thereby, the operation | work which supports the multiple warp T1 in parallel can be performed rapidly, and workability | operativity at the time of producing a bead fabric improves. In the present embodiment, a plurality of yarn hanging rods 34 are arranged along the axial direction of the yarn supporting shafts 3B, 3A, and the warp yarn T1 supported by the yarn supporting shafts 3B, 3A is attached to each yarn hanging rod 34. Divided into corresponding areas. This is preferable in order to shorten the length of the yarn wound around the yarn hooking rod 34.

  The thread hook 34 can be detachably provided between the thread support portions 32 and 33 adjacent to each other. For this reason, the thread hook 34 can be provided at an appropriate position corresponding to the one used for the bead weaving work among the plurality of thread support portions 32 and 33.

  In the present embodiment, an operation means 7 for rotating the yarn support shafts 3A and 3B is provided. As described with reference to FIGS. 2 and 6, the operating means 7 includes the screw shaft 351 that rotates together with the thread support shaft 3 </ b> A (3 </ b> B), and the operation unit 36 that rotates together with the thread support shaft 3 </ b> A (3 </ b> B). And an operating portion 37 having a screw hole 381 that meshes with the screw shaft 351. The screw shaft 351 protrudes outside the right rear side plate 1B (left front side plate 1C) at one end of the yarn support shaft 3A (3B). The operation portion 36 is provided outside the left rear side plate 1A (right front side plate 1D) at the other end of the yarn support shaft 3A (3B). The operating portion 37 is provided outside the right rear side plate 1B (left front side plate 1C) at one end of the yarn support shaft 3A (3B). According to such a configuration, when the operation unit 37 is rotated in the direction of loosening the screw shaft 351 from the state where the thread support shaft 3A (3B) is fixed, as described with reference to FIG. The space 37 is widened and the rotation of the yarn support shaft 3A is allowed. Here, when the operation unit 36 is gripped and rotated, the thread support shaft 3 </ b> A (3 </ b> B) rotates together with the operation unit 36. The operation of rotating the yarn support shaft 3A (3B) can be reliably performed only by the rotation operation of the operation unit 36 without touching the yarn support shaft 3A (3B). Therefore, the bead weaving machine A of this embodiment is excellent in workability when rotating the yarn support shaft 3A (3B).

  While specific embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention. The specific shape and material of the bead loom according to the present invention are not limited to the above embodiment.

  In the said embodiment, although the length adjustment means 5 was provided and the case where the length of both the front side plates 1C and 1D and the front back side plates 1A and 1B was adjustable was demonstrated, length adjustment means is provided. It is good also as a structure which does not. When the length adjusting means is not provided, a series of left side plates extending in the front-rear direction may be provided instead of the connection structure including the left front side plate 1C, the left rear side plate 1A, and the connection portion 4A. Moreover, what is necessary is just to provide a series of right side board extended in the front-back direction instead of the connection structure which consists of 1D of right front side plates, the right back side plate 1B, and the connection part 4B.

A Bead weaving machine 1A Left rear side plate 1B Right rear side plate 1C Left front side plate 1D Right front side plate 11, 12 Hole 13 Concave groove 14 Groove portion 15 Long hole 16 Mark 2A (second) thread fixing shaft 2B (first) thread Fixed shaft 211, 212 Rotating shaft 213 Shaft end 214 Shaft hole 25 Shaft member 251 Screw shaft 252 Shaft member end 26 Operation part 261, 262 Recess 27 Operation part 271 Recess 3A (second) thread support shaft 3B (first 1) Thread support shaft 310 Outer peripheral surface 311, 312 Rotating shaft 313 Shaft end 314 Shaft hole 32 Thread support portion 321 Convex portion 322 Groove portion 323 Through hole 324 Scale 33 Thread support portion 331 Convex portion 332 Groove portion 333 Through hole 334 Scale 34 Thread hook 341 Mounting hole 35 Shaft member 351 Screw shaft 352 Shaft member end 36 (first) operation portions 361, 362 recess 37 (second ) Operation part 371 Recess 4A Connection part 4B Connection part 411 Projection part 412 Screw hole 413 Hole 414 Mark line 43 Tightening bolt 5 Length adjustment means 6 Operation means 7 Operation means

Claims (6)

A left side plate and a right side plate facing each other at a predetermined interval in the left-right direction;
A first yarn fixing shaft for fixing one end of a plurality of warp yarns and a second yarn fixing shaft for fixing the other end of the plurality of warp yarns, both ends of the left and right plates A first thread fixing shaft located at the front and a second thread securing shaft located at the rear, the parts of which are rotatably connected;
1st and 2nd thread support shafts for supporting the one end side intermediate part and the other end side intermediate part of a plurality of warp yarns in parallel, and both ends of the left and right side plates are rotated. A first thread support shaft positioned forward and a second thread support shaft positioned rearwardly coupled to each other;
Each of the thread support shafts is provided with a plurality of thread support portions having a plurality of groove portions arranged at a predetermined pitch in the axial direction at different positions in the circumferential direction, and the pitch of the groove portions in each of the plurality of thread support portions is and Tsu different from each other,
Each of the groove portions has a V-shaped cross section and a tapered bottom portion, and is configured so that the warp thread fitted into the groove portion can come into contact with a pair of convex portions sandwiching the groove portion. Features a bead weaving machine. Each of the thread support shafts has a substantially cylindrical outer peripheral surface,
The bead weaving machine according to claim 1 , wherein the plurality of yarn support portions protrude radially outward from an outer peripheral surface of each yarn support shaft. The bead weaving machine according to claim 2 , wherein the yarn support portion has a plurality of through holes formed so as to intersect the plurality of groove portions from one end side to the other end side of each yarn support shaft.   The bead weaving machine according to claim 1, wherein each thread support shaft is detachably provided with a thread hooking rod that protrudes outward in the radial direction and hooks the warp thread. The bead weaving machine according to claim 4 , wherein the yarn hooking rod is provided between a plurality of the yarn support portions adjacent to each other in the circumferential direction of the yarn support shafts. A screw shaft that protrudes outside one of the left side plate and the right side plate on one end side of each of the yarn support shafts and rotates with the respective yarn support shafts, and the left side plate on the other end side of each of the yarn support shafts And a first operation part that is provided on the other outer side of the right side plate and rotates together with each of the thread support shafts, and a second operation part having a screw hole that meshes with the screw shaft. The bead weaving machine according to any one of claims 1 to 5 .

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