JPH0482112A - Woven flat cable and manufacturing device therefor - Google Patents

Abstract

PURPOSE:To eliminate a unraveling work for both ends of a woven flat cable in treating the ends by alternately providing an arbitrary length of woven section having wefts woven into wires and warps at arbitrary pitches, and an arbitrary length of non-woven section without weaving the wefts into the wires and warps, respectively in a lengthwise direction, and forming a dense woven portion at both ends of each woven section. CONSTITUTION:A distribution guide device 12 for guiding wires 6 and warps 7 for preventing the entanglement and entwinement thereof is arranged on the downstream side of a warp feed device 11. Also, a weaving machine 13 for weaving wefts 8 into the wires 6 and warps 7 whenever necessary for making a woven flat cable 1, is provided on the downstream side of the distribution guide device 12. In this case, the woven flat cable 1 comprises an arbitrary length of woven section 2 having the wefts 8 woven into the wires 6 and warps 7 at arbitrary pitches, and an arbitrary length of non-woven section without weaving the wefts 8 into the wires 6 and warps 7, alternately in a lengthwise direction. In addition, both ends of each woven section 2 are provided with a dense woven portion 4 having the wefts 8 woven into the wires 6 and warps 7 by a plurality of times in the same position.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a woven flat cable in which an arbitrary number of core wires and an arbitrary number of warp yarns are arranged side by side in an arbitrary arrangement, and weft yarns are woven into these; The present invention relates to its manufacturing equipment.

[Prior Art] In conventional woven flat cables, weft threads are woven into core wires and warp threads at a predetermined pitch over the entire length of the cable (for example, Japanese Patent Publication No. 55-38768, Japanese Patent Publication No. 55
(Refer to Publication No.-38787).

Therefore, conventional weaving flat cable manufacturing apparatuses have the same structure as textile looms.

[Problems to be Solved by the Invention] In the above-mentioned conventional woven flat cable, when it is cut to a desired length and used, it is necessary to unravel the weft threads at both ends, making terminal treatment troublesome.

Further, the conventional weaving flat cable production apparatus described above can only produce a weaving flat cable in which the weft is woven over the entire length.

[Means for Solving the Problems] In order to solve the above problems, the woven flat cable of the present invention has a flat cable in which an arbitrary number of core wires and an arbitrary number of warp yarns are arranged side by side in an arbitrary arrangement. Weaving sections of arbitrary length in which weft threads are woven into warp threads at arbitrary pitches and non-woven sections of arbitrary length in which weft threads are not woven into core wires and warp threads are provided alternately in the length direction, and each weaving section At both ends, a densely woven part is provided in which the weft is woven into the core and the warp at the same position multiple times.

Further, the weaving flat cable manufacturing apparatus of the present invention includes a weaving device that arranges a predetermined number of core wires and a predetermined number of warp threads in a predetermined arrangement and weaves weft threads thereto, and a weaving device that takes over the core wires and warp threads from this weaving device. By providing a take-off device and a control device that controls these weaving devices and take-off devices, and driving the weaving device and take-off device in synchronization, weaving is possible in which weft yarns are woven into core wires and warp yarns at a predetermined pitch. By forming a woven section and driving a take-off device without driving a weaving device, a non-woven section is formed in which no weft is woven into the core and warp yarns, and the weaving device is driven without driving a take-off device. This structure forms a densely woven part in which the weft is woven into the core and the warp at the same position multiple times.

[Function] The woven flat cable of the present invention has a woven portion of any length in which the weft is woven into the core and the warp at an arbitrary pitch, and a non-woven portion of any length in which the weft is not woven into the core and the warp. are provided alternately in the length direction, and a densely woven part is provided at both ends of each woven part in which the weft is woven into the core and the warp at the same position multiple times, so it can be cut at the non-woven part. By using this method, there is no need to unravel the weft threads at both ends during terminal processing, and the terminal processing can be carried out quickly. Further, since the densely woven portion is provided, fraying of the weft threads at both ends of the woven portion can be effectively prevented.

Further, the weaving flat cable manufacturing apparatus of the present invention includes a weaving device that arranges a predetermined number of core wires and a predetermined number of warp threads in a predetermined arrangement and weaves weft threads thereto, and a weaving device that takes over the core wires and warp threads from this weaving device. By providing a take-off device and a control device that controls these weaving devices and take-off devices, and driving the weaving device and take-off device in synchronization, weaving is possible in which weft yarns are woven into core wires and warp yarns at a predetermined pitch. By forming a woven section and driving a take-off device without driving a weaving device, a non-woven section is formed in which no weft is woven into the core and warp yarns, and the weaving device is driven without driving a take-off device. As a result, a densely woven part is formed in which the weft is woven into the core wire and the warp at the same position a plurality of times, so that a woven flat cable having a woven part, a non-woven part, and a tightly woven part can be manufactured satisfactorily. Moreover, since the woven flat cable can be taken off faster when forming the non-woven part than when forming the woven part, the manufacturing time of the woven flat cable can be shortened overall.

[Example 1] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 9.

Fig. 1 is a schematic plan view of a woven flat cable according to an embodiment of the present invention, and Fig. 2 is a cross-sectional view along the width direction of the woven part of the woven flat cable. Weaving sections 3 are provided alternately in the length direction, and densely woven sections 4 are provided at both ends of each weaving section 2. The width of the woven flat cable 1 is 122
It is about ~200w. The length of the weaving section 2 is, for example, 400 mm.
The length of the non-woven part 3 is, for example, 1000+n.
It is about n+. The woven flat cable 1 has a predetermined number of core wires 6 and a predetermined number of warp threads 7 arranged in parallel in a predetermined arrangement, and in the weaving section 2, weft threads 8 are arranged in a predetermined pattern on the core wires 6 and the warp threads 7. It is large and woven at a predetermined pitch. In the non-woven part 3, the weft thread 8 is not woven,
In the densely woven portion 4, the weft threads 8 are placed at the same position, for example, from 4 to
It has been incorporated 5 times.

The core wire 6 includes a conductor 6a and a coating 6b that covers the outer periphery of the conductor 6a.
It is composed of. For example, the outer diameter of the core wire 6 is 1.7
~3.73+am, plural types or the same type of core wires 6 are arranged in parallel with or without sandwiching the warp threads 7, and the number of the threads is, for example, 48, 49, 53,
There are about 56 or 80 pieces. The covering 6b is made of synthetic resin such as polyvinyl chloride.

The warp threads 7 and the weft threads 8 are made of synthetic resin such as aromatic polyamide, and have a thickness of, for example, about 200 denier.

The pitch of the weft threads 8 in the weaving section 2 is such that, for example, 10 to 14 weft threads 8 are present at equal intervals for a length of 25.4 mm (1 inch) of the weaving flat cable 1.

FIG. 3 is a plan view of a weaving flat cable manufacturing apparatus according to an embodiment of the present invention, and FIG. The lower side in the supply direction (left side in Figures 3 and 4)
A warp supply device 11 for supplying a predetermined number of warp threads 7 is disposed at.

A distribution guide device 12 is disposed downstream of the warp supply device 11 to guide the core wires 6 and warp yarns 7 to prevent stitching and tangling. A weaving machine 13 is arranged to weave the woven flat cable 1 by suitably weaving the weft threads 8 into the wires 6 and the warp threads 7. A spark tester 14 for performing an insulation test on the woven flat cable 1 is arranged downstream of the weaving machine 13, and a winder for winding the woven flat cable 1 at a predetermined tension is located downstream of the spark tester 14. Machine 15 is located.

Figure 5 is a partially cutaway front view of the guide device 12;
The figure is a cutaway side view of the same part, and a pair of columns 18 having a U-shaped cross section are erected on the pedestal 17 at a predetermined interval. An upper positioning plate 19 is fixed by a plurality of bolts 20 at predetermined intervals in the vertical direction. The upper positioning plate 19 has a substantially flat plate shape and has protrusions 19a that protrude downward from both lengthwise ends, and the bolts 20 are screwed into threaded holes in the protrusions 19a. Flat plate-like lower positioning plates 21 are each fixed on the upper positioning plate 19 with bolts not shown, and the upper positioning plate 1 of the lowermost stage is disposed between the columns 18 and 18.
A flat support plate 22 is fixed below the support plate 9 with a plurality of bolts 23 . In the upper positioning plate 19, a large number of through holes 24 are formed at a predetermined pitch in the center in the depth direction, except for the upper positioning plate 19 of the lowermost stage, and in the lower positioning plate 21, the lowermost positioning plate 19 of the lowermost stage Except for the side positioning plate 21, a large number of through holes 25 are formed at a predetermined pitch in the center in the depth direction. The through holes 24 formed in the middle upper positioning plate 19 and the through holes 25 formed in the middle lower positioning plate 21 are arranged alternately without overlapping each other. The through hole 24 formed in the upper positioning plate 19 of the uppermost stage is located directly above the through hole 25 formed in the lower positioning plate 21 of the middle stage. The through hole 25 is located directly below the through hole 24 formed in the middle upper positioning plate 19. A large number of rolls 2 are provided between the lower positioning plate 21 of the middle stage and the upper positioning plate 19 of the top stage, and between the lower positioning plate 21 of the lowest stage and the upper positioning plate 19 of the middle stage.
6 is arranged so as to be rotatable around a vertical axis. The upper roll 26 has a lower end loosely fitted into a through hole 25 formed in the lower positioning plate 21 of the middle stage, and an upper end loosely fitted into the through hole 24 formed in the upper positioning plate 19 of the uppermost stage. are doing. The lower roll 26 has its lower end loosely fitted into a through hole 25 formed in the lower positioning plate 21 of the lowest stage, and its upper end loosely fitted into the through hole 25 formed in the upper positioning plate 19 of the middle stage.
It is loosely fitted to 4. That is, the upper roll 26 is supported by the middle upper positioning plate 19, and the lower roll 26 is supported by the lowermost upper positioning plate 19. Round guide rods 27 are arranged near the upstream side and near the downstream side of each upper positioning plate 19, respectively, and these guide rods 27 are rotatably supported by brackets 28 at both ends. That is, on both sides of each support column 18 in the depth direction (in the feeding direction of the core wire 6 and the warp yarn 7), L-shaped brackets 28 are fixed in three stages in the vertical direction with a plurality of bolts 29, and are fixed to both ends of the guide rod 27. The formed small diameter portion 27a is loosely fitted into the hole of the bracket 28. A large number of holes are formed in the support plate 22 in two rows, upper and lower, at a predetermined pitch in a staggered manner, and the number holes include through holes 31.
A guide member 31 made of ceramics having a diameter a is fitted and fixed.

The core wires 6 supplied by the core wire supply device 10 are separated horizontally by passing between the upper or lower rolls 26, 26 one by one, and are separated by guide rods 27 on the upstream and downstream sides of the rolls 26. , 27, it is handled in the vertical direction. The warp yarns 7 supplied by the warp yarn supply device 11 pass through the through-holes 31a of the guide member 31 one by one, and are handled in the horizontal direction and the vertical direction.

FIG. 7 is an explanatory diagram of the operating principle of the weaving machine 13, in which the weaving machine 13 is a weaving device 33 that appropriately weaves the weft threads 8 into the core wires 6 and the warp threads 7.
and a take-off device 34 that takes over the woven flat cable 1. The operating principle of the weaving device 33 is similar to that of a well-known textile loom, and the weaving device 33 is
A receiver for receiving the core wire 6 and the warp yarn 7 is a roll 35 and a receiver for receiving the core wire 6 and the warp yarn 7.
By dividing the warp threads 7 into groups and raising and lowering them alternately, openings 36 are formed between the groups of the core wires 6 and the warp threads 7.
A belt 37 that forms a belt 37, a reed 38 that arranges the core wires 6 and warp threads 7 in one row in a predetermined order and narrows the weft threads 8 to a predetermined pitch, a shuttle lace 39 that is integrated with the reed 38, and a shuttle lace. A shuttle 40 weaves the weft yarns 8 into the core wires 6 and the warp yarns 7 by reciprocating through the opening 36 along the upper surface of the shuttle 39, and a shuttle 40 which reciprocates at a predetermined angle around its lower end and has a reed 38 and a shuttle lace at its upper end. 39 is attached to the slay 41. Although two belts 37 are shown in FIG. 7 to make the drawing easier to understand, four belts 37 are actually provided in this embodiment. That is, the two belts 37 divide the core wires 6 into two groups and move them up and down alternately, and the remaining two belts 37 divide the warp threads 7 into two groups and move them up and down alternately. The take-up device 34 is composed of an upper presser roll 43 and a lower presser roll 44 that sandwich the woven woven flat cable 1, and a guide roll 45 that guides the woven flat cable 1.
The outer periphery of the lower pressing roll 44 is provided with a rubber lining.

The upper presser roll 43 is a spring 4 made of a coil spring.
6, a predetermined pressing force is applied to the lower pressing roll 44.

FIG. 8 is a schematic diagram of the drive mechanism of the weaving machine 13, in which a pulley 49 is fitted and fixed to the output 1llI48 of the first electric motor 47. A pulley 51 is fitted and fixed to the middle part of a shaft 50 that is rotatably supported around the shaft axis parallel to the output shaft 48, and an endless belt 52 is hung between the pulleys 49 and 51. It has been passed. An electromagnetic brake device 53 is attached to one end of the shaft 50.
A pulley 54 is fitted and fixed to the other end. axis 50
A pulley 56 is fitted and fixed to one end of a first crankshaft 55 that is rotatably supported in parallel with the first crankshaft 55 around its axis.
7 is passed. The upper end of the sleigh 41 (FIG. 7) is connected to the bent portion of the first crankshaft 55 via a pair of connecting rods 41a.
A gear 58 is fitted and fixed to the other end. A gear 6° is fitted and fixed to one end of a second crankshaft 59 which is supported rotatably around the shaft axis parallel to the first crankshaft 55, and the gear 60 and the gear 58 are connected to each other. They mesh with each other. The belts 37 are connected to the bent portions of the second crankshaft 59 via a pair of connecting rods 37a, and a pair of shuttle drive devices are provided for reciprocating the shuttle 40 (FIG. 7). 61 are connected via a pair of connecting rods 61a. That is, a pair of shuttle holders 62 that hold the shuttles 40 are installed on the upper surface of the shuttle race 39 so as to be movable in the length direction of the shuttle race 39, and one shuttle drive device 61 is movable in the width direction of the shuttle race 39. As a result, one shuttle holder 62 is pushed by the shuttle drive device 61 and moves in the length direction of the shuttle race 39, and the shuttle 40 is thrown off from one shuttle holder 62 due to inertia and moves on the shuttle race 39 in the longitudinal direction. Move to
The receiver is stopped by the other shuttle holder 62. The movement of the shuttle 40 from the other shuttle holder 62 to one shuttle holder 62 is also realized by the same operating principle.

The input side of a tooth-shaped electromagnetic clutch device 66 is fitted and fixed to the output shaft 65 of the second electric motor 64, and a pulley 67 is attached to the output side of the tooth-shaped electromagnetic clutch device 66.

A pulley 69 is fitted and fixed to the middle part of a shaft 68 that is rotatably supported parallel to the output shaft 65.
An endless belt 70 is passed between the pulley 7 and the pulley 69. A gear 71 is fitted and fixed to an intermediate portion of the shaft 68, and a gear 73 is fitted and fixed to one end of a shaft 72 that is rotatably supported parallel to the shaft 68. Gear 73 and gear 71 mesh with each other. A gear 74 is fitted and fixed to the other end of the shaft 72, and a gear 76 is fitted to one end of the shaft 75 of the lower presser roll 44, which is supported parallel to the shaft 72 and rotatable around the axis. Fitted and fixed. Gear 76 and gear 74 mesh with each other.

A ratchet wheel 77 is fitted and fixed to one end of the shaft 68, and a pawl 78 is connected to a bent portion of the first crankshaft 55 via a power transmission mechanism 78a. claw 78
is engaged with the teeth of the ratchet wheel 77, and the first
The ratchet wheel 77 is driven by the crankshaft 55 via the power transmission mechanism 78a to rotate the ratchet wheel 77 intermittently at a predetermined pitch. An electromagnetic actuator 79 is disposed near the pawl 78, and when the actuator 79 operates, the pawl 78 and the ratchet wheel 77 are forcibly disengaged, and even if the pawl 78 is driven, the ratchet wheel 77 does not rotate. A rotary encoder 80 is attached to the other end of the shaft 68 to detect the number of revolutions of the shaft 68 in order to calculate the take-up length of the woven flat cable 1. The shaft of the roll 35 is connected to the vibration generating device 81 via a connecting rod 81a. The first electric motor 47, the electromagnetic brake device 53, the second electric motor 64, the tooth-shaped electromagnetic clutch device 66, the actuator 79, and the vibration device 81 are controlled by a control device 82 comprising, for example, a microcomputer. Further, the output signal of the rotary encoder 80 is input to the control device 82.

Figure 9 is an enlarged longitudinal sectional front view of the main part of the shuttle race 39.
A recess 84 is formed in the upper surface of the shuttle race 39. In the recess 84, the distance in the length direction of the shuttle race 39 is approximately equal to the distance in the width direction of the woven flat cable 1, and the depth is approximately equal to the diameter of the core wire 6 having the largest diameter among the core wires 6. Specifically, for example, 220■■X6
The size is about +n. The recess 84 is the shuttle race 3
It is formed over the entire length in the direction orthogonal to the length direction of 9, that is, the depth. The length of the shuttle 40 is the length of the recess 8
4 and the distance between the core wires 6 and the distance between the core wires 6. For example, the maximum distance between the end wall of the recess 84 and the core wire 6 and the distance between the core wires 6 is the same as that between the end wall 84a of the four parts 84 and the ninth
Assuming that the distance from the leftmost core wire 6 in the figure is L1, the length L2 of the shuttle 40 is set to satisfy the relationship L2≧2L1. In addition, in FIG. 9, illustration of the warp threads 7 and the weft threads 8 is omitted.

Although not shown, the lead 38 has a large number of steel partition plates in the vertical direction, and the core wires 6 and warp threads 7 are
The woven flat cables 1 are aligned in accordance with the actual arrangement and pass between adjacent partition plates one by one. The distance between each adjacent partition plate is set to be approximately equal to the diameter of the core wire 6 or the warp yarn 7 passing therethrough.

That is, the large number of partition plates are arranged in parallel at irregular pitches depending on the diameters and arrangement of the core wires 6 and the warp yarns 7.

Next, the operation will be explained. A large number of cords 6 supplied by a cord supply device 10 and a large number of warp yarns 7 supplied by a warp supply device 11 are guided by a guide device 12 and distributed between belts 37 and reeds 38 of a weaving machine 13. and is guided between the lower presser roll 43 and the lower presser roll 44. Assuming that the weaving machine 13 forms the weaving section 2, the control device 82 puts the electromagnetic brake device 53 in the brake non-operating state, the tooth-shaped electromagnetic clutch device 66 in the disconnected state, and the second electric motor 64 The actuator 79 and the oscillating device 81 are inactivated, and the first electric motor 47 is activated. The rotational force of the output shaft 48 of the first electric motor 47 is generated between the pulley 49, the belt 52, the pulley 51, and the shaft 5.
0 is transmitted to the first crankshaft 55 via the pulley 54, V-belt 57, and pulley 56, and the first crankshaft 5
5 rotates around the axis. As a result, the connecting rod 41a
makes a reciprocating linear motion at a predetermined period, and the slay 41 reciprocates at a predetermined angle around the lower end, and the power transmission mechanism 7
The pawl 78 or the ratchet wheel 77 is intermittently rotated by a predetermined angle via 8a. The rotational force of the first crankshaft 55 is transferred to the second crankshaft 59 via the gear 58 and the gear 60.
, and the second crankshaft 59 rotates around its axis. The number of teeth on the gear 60 is twice the number of teeth on the gear 58, and the second crankshaft 59 rotates once while the first crankshaft 55 rotates twice. As a result, the connecting rod 37a makes a reciprocating linear movement at a predetermined period, the belt 37 moves up and down alternately, and the connecting rod 61a makes a reciprocating linear movement at a predetermined period, thereby driving the shuttle drive device 61 or the shuttle holder 62. The shuttle 40 is driven to make a reciprocating linear movement along the shuttle race 39. That is, one of the two belts 37 for the core wire 6 and the two belts 37 for the warp yarn 7 are driven.
One of the belts 37 is raised, the other belt 37 is lowered, and the sley 41 is swung toward the belt 37.
The shuttle 40 is thrown out from one shuttle holder 62 and received by the other shuttle holder 62, so that the shuttle 40 crosses the opening 36 in a direction perpendicular to the core wires 6 and the warp yarns 7, and is housed in the shuttle 40. The weft threads 8 are woven into the core threads 6 and the warp threads 7. The rotational force of the ratchet wheel 77 is transmitted to the lower presser roll 44 via the shaft 68, the gear 7], the gear 73, the shaft 72, the gear 74, the gear 76, and the shaft 75.
is rotated by a predetermined angle around its axis. As a result, the weaving flat cable 1 sandwiched between the lower presser roll 43 and the lower presser roll 44 is pulled off for a predetermined length. Also, the other of the two belts 37 for the core wire 6 and the other of the two belts 37 for the warp 7 are raised, and each one of the belts 37 is lowered. In the state of swinging to the side, the shuttle 40 is attached to the other shuttle holder 6.
2 and is stopped by one shuttle holder 62, the shuttle 40 crosses the opening 36 in a direction perpendicular to the core wires 6 and the warp yarns 7, and the shuttle 40
The weft threads 8 accommodated in o are woven into the core wires 6 and the warp threads 7.

Then, the woven flat cable 1 sandwiched between the lower presser roll 43 and the lower presser roll 44 is taken off for a predetermined length. Note that when the slay 41 swings toward the side opposite to the belt 37 side, the weft yarn 8 is narrowed to a predetermined pitch by the lead 38. Thereafter, similar operations are repeated to form the weaving section 2.

On the other hand, the rotational speed of the shaft 68 is detected by a rotary encoder 80, and an output signal of the rotary encoder 8° is supplied to a control device 82. As a result, the control device 82
The length of the weaving flat cable 1 taken up by the lower press roll 43 and the lower press roll 44 is calculated, and when the weaving section 2 has been formed to a predetermined length, the actuator 79 is activated.

As a result, the engagement between the ratchet wheel 77 and the pawl 78 is released, and the lower presser roll 44 no longer rotates. Therefore, the weft threads 8 are woven into the core wires 6 and the warp threads 7 at the same position, forming the densely woven portion 4.

After operating the actuator 79 for a predetermined period of time, the control device 82 causes the first electric motor 47 to be inactivated and at the same time the electromagnetic brake device 53 to be activated, and the second electric motor 64 to be activated and the tooth profile electromagnetic brake to be activated. The clutch device 66 is connected, and the actuator 79 and the vibration device 81 are activated. As a result, the rotational force of the output shaft 65 of the second electric motor 64 is transferred to the toothed electromagnetic clutch device 66, the pulley 67, the belt 70, the pulley 69, and the shaft 68.
is transmitted to the lower presser roll 44 via the gear 71, the gear 73, the shaft 72, the gear 74, the gear 76, and the shaft 75, and the lower presser roll 44 continuously rotates to rotate the upper presser roll 4.
The woven flat cable 1 sandwiched between the weaving flat cable 1 and the lower pressing roll 44 is continuously pulled off. At this time, the first
Since the crankshaft 55 and the second crankshaft 59 do not rotate and the weaving device 33 does not operate, the weft yarn 8 is not woven into the core wire 6 and the warp yarn 7, and the non-woven portion 3 is formed. . Also, at this time, since the core wire 6 is continuously taken up while the belt 37 is stopped, a large frictional force acts on the belt 37 and there is a risk of damage to the core wire 6 and the belt 37. As a result of the operation, the connecting rod 81a and the receiver apply vibration to the core wire 6 via the roll 35, so that the frictional force is reduced and damage to the core wire 6 and the belt 37 is effectively prevented. On the other hand, the rotation speed of the shaft 68 is detected by the rotary encoder 80.
An output signal of is supplied to the control device 82. As a result, the control device 82 controls the upper presser roll 43 and the lower presser roll 4.
4, and when the non-woven part 3 has been formed to a predetermined length, the second electric motor 64 is put into a non-operating state, and the tooth-shaped electromagnetic clutch device 66 is put into a non-connected state. Then, the first electric motor 47 is activated, the electromagnetic brake device 53 is activated, and the oscillation device 81 is roughly activated. As a result, a densely woven portion 4 is formed.

Thereafter, similar operations are repeated, and a woven flat cable 1 having alternately woven portions 2 and non-woven portions 3 and densely woven portions 4 at both ends of the woven portion 2 is woven.

When using the woven flat cable 1, the woven flat cable 1 is cut at the non-woven part 3 to obtain the woven flat cable 1 of the desired length, and the connectors are connected by applying adhesive to both ends. do.

In this way, the above-mentioned woven flat cable 1 has a weaving part 2 of an arbitrary length in which the weft threads 8 are woven into the core wires 6 and the warp threads 7 at an arbitrary pitch, and a weaving part 2 in which the weft threads 8 are not woven into the core wires 6 and the warp threads 7 at an arbitrary pitch. Long non-woven parts 3 are provided alternately in the length direction, and densely woven parts 4 are provided at both ends of each woven part 2, in which the core wire 6 and the warp threads 7 are woven with the weft threads 8 at the same position multiple times. Therefore, by cutting and using the non-woven portion 3, there is no need to unravel the weft threads 8 at both ends during terminal processing, and the terminal processing can be performed quickly. Further, since the densely woven portion 4 is provided, fraying of the weft threads 8 at both ends of the woven portion 2 can be effectively prevented.

The weaving flat cable manufacturing apparatus includes a weaving device 33 for arranging a predetermined number of core wires 6 and a predetermined number of warp threads 7 in a predetermined arrangement and weaving weft threads 8 thereon, A take-up device 34 that takes over the warp threads 7, and a control device 82 that controls the weaving device 33 and the take-up device 34.
By driving the weaving device 33 and the take-up device 34 in synchronization, a weaving section 2 is formed in which the weft yarns 8 are woven into the core wires 6 and the warp yarns 7 at a predetermined pitch, and the weaving device 33
By driving the take-off device 34 without driving the take-off device 34, the non-woven portion 3 in which the weft yarn 8 is not woven into the core wire 6 and the warp yarn 7 is formed, and the weaving device 33 is driven without driving the take-off device 34. As a result, the densely woven portion 4 is formed by weaving the weft 8 into the core 6 and the warp 7 at the same position multiple times, so that a woven flat having a woven portion 2, a non-woven portion 3, and a tightly woven portion 4 is formed. The cable 1 can be manufactured well. Further, since the woven flat cable 1 can be pulled off faster when forming the non-woven part 3 than when forming the woven part 2, the manufacturing time of the woven flat cable 1 can be shortened as a whole.

Further, as in this embodiment, the distribution does not use bearings to support the rolls 26 of the guide device 12, and the upper rolls 26 and the lower rolls 26 are arranged alternately to position the rolls 26 in the upper position. If it is supported by the plate 19,
Distribution can simplify the structure of the guide device 12 and reduce manufacturing costs, and since distribution can reduce the width of the guide device 12, the distribution can be performed from both ends of the guide device 12 in the width direction to the belt 37 of the weaving machine 13. The bending angle of the core wire 6 as it progresses can be reduced, and damage to the core wire 6 can therefore be effectively prevented. Moreover, since the roll 26 is rotatable, damage to the core wire 6 can be reduced compared to a case where the roll 26 is fixed. Further, the diameter of the cord 6 is much larger than that of the warp 7, and the height of the supply of the cord 6 from the cord supply device 10 is higher than the supply height of the warp 7 from the warp supply device 11 (although the roll 26 are arranged above the guide member 31, so the core wires 6 and the warp threads 7 do not intersect on the upstream side of the belt 37, thereby preventing entanglement or interference between the core wires 6 and the warp threads 7. Can be effectively prevented.

Further, as in this embodiment, if the vibration generating device 81 is provided to vibrate the core wire 6 when forming the non-woven portion 3, the frictional force between the belt 37 and the core wire 6 can be reduced, and the core wire 6 and the heald 37 can be effectively prevented from being damaged.

Further, as in the present embodiment, a recess 84 is formed on the upper surface of the shuttle race 39, and the length L2 of the shuttle 40 is set in the recess 84.
If the distance between the end wall and the center wire 6 or the distance between the center wires 6 is at least twice the maximum distance 1,1, the center of gravity of the shuttle 40 or one end wall 84a as shown in FIG. When the tip of the shuttle 40 reaches the center line 6, the tip of the shuttle 40 is necessarily on the center line 6, so it is possible to prevent the tip of the shuttle 40 from colliding with the center line 6 and causing the shuttle 40 to stop or deviate from the predetermined course of movement. can be prevented.

Furthermore, as in this embodiment, if the interval between adjacent partition plates of the lead 38 is made almost the same as the core wire 6 or the warp thread 7 passing therethrough, the width of the woven flat cable 1 can be accurately formed to a predetermined dimension. .

[Another Example] In the above example, an example was described in which no weft yarn 8 is woven into the non-woven portion 3. However, the present invention is not limited to such a configuration; for example, the non-woven portion 3 The weft threads 8 may be woven into two locations near the center in the length direction in the same manner as the woven portion 2 or the densely woven portion 4, and the two woven portions may be cut at the center during use. In this way, the core wires 6 and the warp yarns 7 of the non-woven portion 3 will not be separated even if they are cut, making handling easier.

Further, in the above embodiment, a belt-type weaving machine 13 was used, but the woven flat cable manufacturing apparatus of the present invention is not limited to such a configuration, and a needle-type weaving machine 13 may be used. May be used.

Further, in the above embodiment, the weaving machine 13 is provided with a ratchet wheel 77 and a pawl 78, and the pawl 78 is provided when the weaving section 2 is formed.
Although the ratchet wheel 77 is rotated by the ratchet wheel 77, the weaving flat cable manufacturing apparatus of the present invention is not limited to such a configuration. Alternatively, the second electric motor 64 may be operated intermittently at predetermined timings by the control device 82.

Further, in the above embodiment, the lower presser roll 43 is pressed against the lower presser roll 44 by the spring 46, but the present invention is not limited to such a configuration.
For example, a cylinder device may be used instead of the spring 46.

[Effects of the Invention] As explained above, according to the woven flat cable of the present invention, in a flat cable in which an arbitrary number of core wires and an arbitrary number of warp threads are arranged side by side in an arbitrary arrangement, the weft threads are attached to the core wires and the warp threads. A woven part of an arbitrary length in which the weft is woven at an arbitrary pitch, and a non-woven part of an arbitrary length in which the weft is not woven into the core and warp are provided alternately in the length direction, and at both ends of each woven part. Since we have created a densely woven part where weft threads are woven into the core and warp threads multiple times at the same position, by cutting and using the non-woven part, there is no need to unravel the weft threads at both ends when processing the ends. , and terminal processing can be performed quickly. Further, since the densely woven portion is provided, fraying of the weft threads at both ends of the woven portion can be effectively prevented.

Furthermore, according to the woven flat cable manufacturing apparatus of the present invention,
A weaving device that arranges a predetermined number of core wires and a predetermined number of warp yarns in a predetermined arrangement and weaves weft threads thereon, a take-up device that takes over the core wires and warp threads from this weaving device, and these weaving devices and take-up devices. By driving the weaving device and the take-up device in synchronization, a weaving section is formed in which the weft is woven into the core and the warp at a predetermined pitch, without driving the weaving device. By driving the take-up device, a non-woven part is formed in which the weft is not woven into the cord and warp, and by driving the weaving device without driving the take-up device, the weft is woven into the core and warp at the same position. Since the structure is such that a densely woven portion is formed by weaving a plurality of times, a woven flat cable having a woven portion, a non-woven portion, and a densely woven portion can be manufactured satisfactorily. Furthermore, since the woven flat cable can be pulled off faster when forming the non-woven part than when forming the woven part, the manufacturing time of the woven flat cable can be shortened as a whole.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view of a woven flat cable according to an embodiment of the present invention, Fig. 2 is a cross-sectional view in the width direction of the weaving portion of the woven flat cable, and Fig. 3 is a woven flat cable according to an embodiment of the present invention. A plan view of the cable manufacturing device, Figure 4 is a side view of the same, Figure 5 is a partially cutaway front view of the guide device, Figure 6 is a partially cutaway side view of the same, and Figure 7 is the operating principle of the weaving machine. FIG. 8 is a schematic diagram of the drive mechanism of the weaving machine, and FIG. 9 is an enlarged longitudinal sectional front view of the main part of the shuttle lace. 2... Woven part, 3... Non-woven part, 4... Tightly woven part, 6... Cord wire, 7... Warp thread, 8... Weft thread, 33.
...Weaving device, 34...Take-up device, 82...Control device Patent applicant Mitsubishi Cable Industries, Ltd. Figure 1 '7 Figure 4 Tight weaving unit Figure 2 Figure 9 Figure 7 - Warp a-・Weft thread 4a

Claims (1)

[Scope of Claims] 1. A flat cable in which an arbitrary number of core wires and an arbitrary number of warp yarns are arranged in parallel in an arbitrary arrangement, with arbitrary lengths in which weft yarns are woven into the core wires and the warp yarns at an arbitrary pitch. and non-woven parts of arbitrary length in which the weft is not woven into the cord and the warp are provided alternately in the length direction, and the cord and the warp are provided at both ends of each woven part A woven flat cable characterized in that a densely woven part is provided in which the weft is woven multiple times at the same position. 2. A weaving device that arranges a predetermined number of core wires and a predetermined number of warp yarns in a predetermined arrangement and weaves weft threads thereon, a take-up device that takes over the core wires and the warp yarns from this weaving device, and these weaving devices and a control device for controlling the weaving device and the take-off device, and by driving the weaving device and the take-off device in synchronization, the weaving unit weaves the weft yarns into the core wires and the warp yarns at a predetermined pitch. forming a non-woven part in which the weft is not woven into the core wire and the warp by driving the take-off device without driving the weaving device;
Weaving characterized in that a densely woven part is formed by driving the weaving device without driving the take-up device to form a densely woven portion in which the weft is woven into the core wire and the warp at the same position a plurality of times. Flat cable manufacturing equipment.