JP7153990B2 - WIRE LOCKING DEVICE AND WIRE LOCKING METHOD - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire locking device and a wire locking method for locking a wire that can freely bend and bend.

Conventionally, in a wire locking device that is mainly used in a winding device for winding a wire rod that can be freely bent or bent, and used to hold and route the wire rod, the wire rods that are close to each other and between them are used. a pair of gripping pieces for gripping a pair of gripping pieces, a spring for urging the pair of gripping pieces in the direction of approaching each other and closing them, and a driving device for opening the pair of gripping pieces by separating them against the urging force of the spring. A fluid pressure cylinder is known (see, for example, Patent Literature 1).

JP-A-2000-331860

On the other hand, in recent years, winding devices have been developed which perform the winding of the wire to be wound and the processing thereof. Therefore, in a wire locking device used in such a winding device, a wire is held by a pair of holding pieces, movement of the wire relative to the pair of holding pieces is prohibited, and the pair of holding pieces are held together. In addition to moving the wire together with the gripped wire and pulling the gripped wire around, the wire is gripped by a pair of gripping pieces with a relatively weak force to allow the wire to move with respect to the pair of gripping pieces. It has also become necessary to move the pair of gripping pieces while allowing movement, and to extend the wire while sliding the wire gripped by the pair of gripping pieces between the pair of gripping pieces.

However, the pair of gripping pieces are separated and opened by the fluid pressure cylinder, the wire rod is inserted between them, the fluid pressure cylinder is released after that, the spring makes the pair of gripping pieces close to each other, and the pair of gripping pieces is closed. In the conventional wire locking device that grips the wire with the gripping piece, the gripping force for gripping the wire cannot be changed unless the spring with a different spring constant is replaced, which makes it difficult to change and adjust. there were.

It is also conceivable to adjust the pressure of the fluid supplied to and discharged from the fluid pressure cylinder to adjust the gripping force with which the wire is gripped by the pair of gripping pieces. In some cases, when the wire is gripped by a pair of gripping pieces and the wire is allowed to move relative to the pair of gripping pieces, the gripping force must be extremely small in order to avoid disconnection. not.

However, when trying to adjust the pressure of the fluid supplied to and discharged from the fluid pressure cylinder in order to allow the pair of gripping pieces to grip the wire with a relatively weak force, it is necessary to finely adjust the pressure. It has been difficult to make precise adjustments, and it has been impossible to finely adjust the gripping force. Even if it were possible, it would be difficult to adjust the fluid pressure quickly, and it would be impossible to adjust the gripping force quickly.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wire locking device and a wire locking method capable of quickly adjusting the locking force without breaking even a relatively thin wire.

The present invention is an improvement of a wire locking device comprising a fixed piece, a movable piece provided to be movable relative to the fixed piece, and moving means for moving the movable piece relative to the fixed piece. be.

Its characteristic structure is that a plurality of locking pins are arranged in a direction orthogonal to the moving direction of the movable piece on either the fixed piece or the movable piece, and the movable piece moves relative to the fixed piece to form a plurality of locking pins. One or more insertion/removal pins that enter or separate from the pins are provided on either the fixed piece or the movable piece.

When this wire locking device further comprises a rotating body rotatable about an axis parallel to the direction of relative movement of the movable piece with respect to the fixed piece, and a rotating means for rotating the rotating body, the rotating body It is preferable to provide a fixed piece and a movable piece, and an operation shaft for moving the movable piece is provided on the rotating body so as to pass through the central axis of rotation of the rotating body, and the moving means relatively moves the movable piece via the operation shaft. It is further preferable to be configured as follows.

Further, the moving means includes biasing means for biasing the movable piece in one direction with respect to the fixed piece, and a driving device for moving the movable piece in the other direction against the biasing force of the biasing means. Preferably, the driving device in this case can include a cam that can move the movable piece, and a motor that displaces the cam to an arbitrary position.

Another aspect of the present invention is a fixed piece, a movable piece provided so as to be relatively movable with respect to the fixed piece, and one of the fixed piece and the movable piece provided side by side in a direction orthogonal to the moving direction of the movable piece. and one or more insertion/removal pins which are provided on either the fixed piece or the movable piece and are inserted into or separated from the plurality of locking pins by relative movement of the movable piece with respect to the fixed piece. It is a wire locking method using the provided wire locking device.

The feature is that a wire rod is inserted between a locking pin and an insertion/removal pin separated from the locking pin, and the movable piece is moved relative to the fixed piece to move the wire rod between the plurality of locking pins and the plurality of locking pins. One or two or more insertion/removal pins that enter between the locking pins are hooked and locked, and the one or two or more insertion/removal pins that enter between the plurality of locking pins change the degree of advancement of the plurality of locking pins. The point is to change the force with which the wire is locked to the stop pin and one or more insertion/removal pins.

If the wire locking device further includes a cam that allows the movable piece to move relative to the fixed piece, and a motor that displaces the cam to an arbitrary position, the wire locking method displaces the cam by the motor. It is preferable to change the degree of entry of one or more insertion/removal pins that enter between the plurality of locking pins depending on the amount.

In the wire locking device of the present invention, either the fixed piece or the movable piece is provided with the locking pin, and the other is provided with the insertion/removal pin. By inserting a wire rod between them, moving the movable piece relative to the fixed piece, and hooking the wire rod on one or more insertion/removal pins that enter between the plurality of locking pins, By making it difficult to move the wire rod in the longitudinal direction, the wire rod can be locked by the locking pin and the insertion/removal pin.

The force with which the locking pin and the insertion/removal pin lock the wire is the frictional force generated between them, so it varies depending on the degree of contact of the wire with the locking pin or the insertion/removal pin. It will change depending on the angle at which the wire is hung. For this reason, in the wire locking device and the wire locking method of the present invention, by changing the degree of entry of one or more insertion/removal pins that enter between the plurality of locking pins, the plurality of locking pins And it is possible to change the force with which the wire is locked to one or more insertion/removal pins.

Then, by reducing the degree of penetration of the insertion/removal pin entering between the locking pins and reducing the locking force, the wire rod is permitted to move in the longitudinal direction, and the wire rod is hooked on the locking pin and the insertion/removal pin. It is possible to stretch while sliding in a rotated state.

In this way, the present invention changes the degree of entry of the insertion/removal pin that enters between the locking pins without gripping the wire, thereby locking the wire that is hooked between the locking pin and the insertion/removal pin. Since the force is adjusted, the wire locking device and the wire locking method can quickly adjust the locking force of the wire without breaking even a relatively thin wire.

If the insertion/removal pin is inserted between the plurality of locking pins by a cam, and the cam can be displaced to an arbitrary position by the motor, the motor is controlled to change and adjust the displacement amount of the cam. By simply doing so, it is possible to steplessly and easily change the locking force generated between the locking pin and the insertion/removal pin and the wire.

It is a top view which shows the wire locking device of this invention. It is a front view of the wire locking device. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1; FIG. 2 is a cross-sectional view taken along line BB of FIG. 1; FIG. 3 is a cross-sectional view taken along line CC of FIG. 2; 4 is a view corresponding to an enlarged view of FIG. 3 showing a state in which a wire is inserted between the locking pin and the insertion/removal pin; FIG. FIG. 7 is a view corresponding to FIG. 6 showing a state in which the insertion/removal pin slightly enters the locking pin and the wire is locked; FIG. 8 is a view corresponding to FIG. 7 showing a state in which the insertion/removal pin has further advanced into the locking pin and the wire is locked relatively strongly; It is a figure which shows the state which draws around the wire which the wire locking device latched. FIG. 9 is a diagram corresponding to FIG. 8 showing the relationship between another locking pin and an insertion/removal pin; FIG. 9 is a diagram corresponding to FIG. 8 showing the relationship between still another locking pin and an insertion/removal pin;

BEST MODE FOR CARRYING OUT THE INVENTION Next, the best mode for carrying out the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 3, a wire locking device 10 of the present invention locks and holds a wire 9, for example, in a winding device for winding a relatively thin wire 9 (FIG. 1). A mounting plate 11 is provided for mounting to a winding device or the like (not shown). The mounting plate 11 is formed with a plurality of mounting holes 11a (FIG. 3) for mounting to a winding device or the like (not shown).

A block-shaped base 12 is attached to the mounting plate 11 , and a cylindrical rotating body 13 is provided through the base 12 . A cylindrical rotating body 13 is provided on the base 12 via a bearing 14 (FIG. 3) so as to be rotatable about its central axis. A rod-shaped fixed piece 16 is attached at its proximal end so as to be parallel to the central axis of rotation of the rotating body 13 .

Specifically, a fixture 15 surrounding the proximal end of the fixed piece 16 is attached around the end of the rotating body 13 . The fixture 15 in the figure is for detachably attaching the fixed piece 16, and as shown in detail in FIG. It has a fixture body 15a in which a groove 15b is formed, and a cover plate 15c screwed to the fixture body 15a so as to block the groove 15b.

As shown in FIG. 3, the fixture main body 15a is formed with an insertion hole 15d perpendicular to the groove 15b, and a female screw hole 16b is formed in the proximal end of the fixing piece 16 corresponding to the insertion hole 15d. Then, in a state in which the proximal end of the fixing piece 16 enters the groove 15b and faces the female screw hole 16b to the insertion hole 15d, the male screw 15e inserted through the insertion hole 15d is screwed into the female screw hole 16b. The base end of the fixing piece 16 that has entered the groove 15b is fixed to the fixture 15. As shown in FIG. In this manner, a rod-shaped fixed piece 16 is attached to one end of the rotating body 13 through the attachment tool 15 so as to be parallel to the central axis of rotation of the rotating body 13 .

As shown in FIGS. 1 and 4, a rod-shaped movable piece 17 having approximately the same size is superimposed on the fixed piece 16, and the base end of the movable piece 17 is movably inserted into the concave groove 15b. As a result, the movable piece 17 is superimposed on the fixed piece 16 so as to be movable relative to the fixed piece 16 in the longitudinal direction, that is, parallel to the central axis of rotation of the rotor 13 .

As shown in FIGS. 1 to 3, the cylindrical rotating body 13 is provided with an operating shaft 18 penetrating the central axis of rotation thereof. is attached with a locking piece 19 that locks onto the movable piece 17 . The locking piece 19 in this embodiment is a ring-shaped member in which a groove 19a is continuously formed in the circumferential direction. As shown in FIG. A pin 17a is provided.

As shown in detail in FIG. 5, a cover plate 15c of the fixture 15 is formed with an elongated hole 15f through which an engaging pin 17a is inserted, parallel to the operating shaft 18. 18 so as to be movable in the same direction as the longitudinal direction of the movable piece 17, when the engaging pin 17a enters the groove 19a in the locking piece 19 attached to one end of the operating shaft 18, the movable piece 17 moves independently of the operating shaft 18. The movable piece 17 together with the operating shaft 18 is configured to be movable relative to the fixed piece 16 .

Returning to FIG. 1, a support plate 21 is attached to the base 12 on which the rotating body 13 is pivotally supported so as to protrude to the other end of the rotating body 13 and perpendicular to the mounting plate 11 . A pulley 22 is fitted to the rotating body 13 protruding from the other end. A motor 23 for rotating the rotor 13 is provided on the support plate 21 as rotating means. That is, the motor 23 is provided on the support plate 21 so that its rotating shaft 23a is parallel to the rotor 13, and another pulley 24 is provided on the rotating shaft 23a of the motor 23. As shown in FIG. A belt 25 is wound between the pulley 22 of the rotating body 13 and the pulley 24 of the rotating shaft 23a of the motor 23, so that when the motor 23 is driven, the rotating body 13 can be rotated via the belt 25. be.

Further, the support plate 21 is provided with moving means 39 for relatively moving the movable piece 17 with respect to the fixed piece 16 via the operation shaft 18 . The moving means in the figure is a coil spring 26 which is a biasing means for biasing the movable piece 17 in one direction, and a driving device for moving the movable piece 17 in the other direction against the biasing force of the coil spring 26. 40 are shown.

Specifically, as shown in FIG. 3, a rail 27 is provided on the support plate 21 in parallel with the central axis of rotation of the rotor 13, and a movable table 28 moves on the rail 27 via a slide member 28c. mounted as possible. As shown in FIG. 1, the movable table 28 is attached with a connector 29 for connecting the movable table 28 to the other end of the operating shaft 18, and one end of the coil spring 26 is attached to the movable table 28. As shown in FIG.

A pair of coil springs 26 in this embodiment are prepared and provided parallel to the operation shaft 18 on both sides of the movable table 28 . One ends thereof are attached to both sides of the movable table 28 , and the other ends thereof are attached to the support plate 21 in the direction away from the base 12 along the rotor 13 .

That is, first screws 28a are provided on both sides of the movable table 28, and one end of the coil spring 26 is engaged with each of the first screws 28a. A second screw 21 a is attached to 21 . The first and second screws 28a and 21a are installed parallel to the rotation center axis of the rotating body 13 with the coil spring 26 being stretched.

Then, the coil spring 26 pulls back the first screw 28a together with the movable table 28 toward the second screw 21a by the force of the coil spring 26, and biases the movable table 28 away from the base 12 on which the rotating body 13 is provided. configured as In this way, when the movable base 28 is moved, the operating shaft 18 connected to the movable base 28 via the connector 29 also moves, and is locked via the locking piece 19 at one end of the operating shaft 18 . Thus, the movable piece 17 is urged to move in one direction with respect to the fixed piece 16 .

On the other hand, a driving device 40 for moving the movable piece 17 in the other direction against the urging force of the coil spring 26 includes a cam 41 capable of moving the movable table 28 toward the base 12 and a cam 41 which can be moved in any direction. An example with a servomotor 42 for displacing to a position is shown.

The cam 41 in this embodiment is a plate cam 41, and the rotating shaft 42a of the servomotor 42 is mounted at a position offset from the center of the disk-shaped plate cam 41. As shown in FIG. The servomotor 42 has its rotary shaft 42a perpendicular to the direction of movement of the movable table 28, and the outer circumference of the plate cam 41 provided eccentrically to the rotary shaft 42a extends from the other end of the movable table 28, that is, from the base 12. It is attached to the support plate 21 so as to be in contact with the other edge in the direction of separation. A roller 28 b that can roll on the outer circumference of the cam 41 is pivotally supported at the other end of the movable table 28 .

Therefore, the coil spring 26 urges the outer periphery of the plate cam 41 to contact the other edge of the movable table 28 in the direction away from the base 12 , and the servo motor 42 responds to the urging force of the coil spring 26 . By rotating the cam 41 against this, the movable base 28 can be moved toward the base 12 side.

Since the operating shaft 18 is connected to the movable table 28 via the connecting tool 29, the servo motor 42, which is the driving device 40, rotates the cam 41 to move the movable table 28, thereby moving the connecting tool. 29 and the operating shaft 18 , the movable piece 17 locked to the operating shaft 18 is moved relative to the fixed piece 16 .

A notch 17c is formed in one or both of the fixed piece 16 and the movable piece 17 to provide a predetermined gap at the facing positions of the tips of the fixed piece 16 and the movable piece 17 that overlap each other. One of the pieces 17 is provided with a plurality of locking pins 16a, and the other of the fixed piece 16 and the movable piece 17 is provided with one or more insertion/removal pins 17b. As will be described later, the locking pin 16a and the insertion/removal pin 17b have a circular cross-section so that the wire rod 9 can be slid around them, and have no irregularities on the surface that could damage the wire rod 9. is used.

In this embodiment, a notch 17c is formed at the distal end of the movable piece 17 at a position opposed to the fixed piece 16 to provide a predetermined gap between the movable piece 17 and the fixed piece 16, as shown in the enlarged view of FIG. Similarly, at the tip of the fixed piece 16 facing the notch 17c, a plurality of locking pins 16a, in this embodiment, three locking pins 16a are arranged in a direction orthogonal to the moving direction of the movable piece 17, That is, they are arranged in the width direction and erected so as to face the notch 17c.

On the other hand, as shown in FIG. 5, the insertion/removal pin 17b is provided in the cutout 17c of the movable piece 17 toward the fixed piece 16. They are arranged side by side in the width direction. This insertion/removal pin 17b is provided upright in a notch 17c near the tip of the movable piece 17, and as shown by the dashed line in FIG. A locking pin 16a provided on the fixed piece 16 protrudes from the leading edge of the fixing piece 16, and the wire rod 9 can be inserted between the leading edge and the locking pin 16a.

The standing position of the insertion/removal pin 17b in the width direction of the movable piece 17 is determined by the relationship with the locking pin 16a of the fixed piece 16. As shown in FIGS. When moving toward the distal end side, the insertion/removal pin 17b that moves together with the movable piece 17 enters between a plurality of locking pins 16a provided on the fixed piece 16, and if the wire rod 9 were inserted therebetween, the insertion/removal pin 17b moves. , so as to bend the wire 9 into a bellows-like shape, so as to enter with a gap of at least the wire diameter of the wire 9 to be locked between it and the locking pin 16a.

Further, the tip of the fixed piece 16 provided with the locking pin 16a and the tip of the movable piece 17 provided with the insertion/removal pin 17b have a U-shaped cross section, and cover covers these tips from the outside. The bodies 20 are each screwed. As shown in the enlarged view of FIG. 1, these cover bodies 20 are formed such that their opposing surfaces are opposed to each other with a predetermined gap t slightly wider than the outer diameter of the wire rod 9. The wire rod 9 engaged with the insertion/removal pin 17b is sandwiched to prevent the wire rod 9 hooked around the locking pin 16a and the insertion/removal pin 17b from being detached from them.

Next, the wire locking method of the present invention using the wire locking device configured in this way will be described.

Since the wire rod locking method of the present invention uses the wire rod locking device 10 described above, the fixed piece 16, the movable piece 17 provided so as to be relatively movable with respect to the fixed piece 16, and the fixed piece 16 or the movable piece 17 and a plurality of locking pins 16a arranged in a direction orthogonal to the direction of movement of the movable piece 17, and a movable piece provided on the other of the fixed piece 16 and the movable piece 17 for the fixed piece 16. 1 or 2 or more insertion/removal pins 17b that enter or separate from the plurality of locking pins 16a by relative movement of the locking pins 17a.

Then, by changing the degree of entry of one or more insertion/removal pins 17b that enter between the plurality of locking pins 16a, the wire rod 9 is attached to the plurality of locking pins 16a and one or more insertion/removal pins 17b. It is characterized by changing the locking force.

Here, as shown in FIG. 1, the wire rod locking device 10 described above is provided with the servomotor 42 for displacing the cam 41. Therefore, in the wire rod locking method of the present invention, the cam 41 is rotationally displaced by the servomotor 42. However, due to the biasing force of the coil spring 26, the other end of the movable table 28 is always in contact with the outer circumference of the cam 41. As shown in FIG.

Therefore, when the cam 41 is rotationally displaced by the servomotor 42 to move the movable table 28 away from the base 12, the operating shaft 18 moves together with the movable table 28, and the locking piece 19 moves away from the fixed piece 16. As indicated by the dashed line in FIG. 6, the movable piece 17 locked to the locking piece 19 moves toward the rotor 13 and retreats. Then, the locking pin 16a and the insertion/removal pin 17b provided thereon are separated from each other, and the locking pin 16a provided on the fixed piece 16 protrudes from the tip edge of the movable piece 17. .

In this way, the wire rod 9 is inserted into the clearance between the tip edge of the movable piece 17 and the locking pin 16a. The wire 9 can be inserted by moving a nozzle provided in a winding device (not shown) for feeding the wire 9 or by moving the wire locking device 10 itself.

After the wire is inserted into the gap between the tip edge of the movable piece 17 and the locking pin 16a, the cam 41 is again rotated and displaced by the servomotor 42 shown in FIG. By moving against the urging force, the movable piece 17 connected to the movable table 28 via the operation shaft 18 is moved away from the rotating body 13 and advanced.

Then, as shown in FIG. 7, one or more insertion/removal pins 17b enter between the plurality of locking pins 16a. It is alternately hooked around one or more insertion/removal pins 17b that enter between the plurality of locking pins 16a.

The wire 9 hooked around the locking pin 16a and the insertion/removal pin 17b comes into contact with both the locking pin 16a and the insertion/removal pin 17b from both sides. Frictional force is generated in a direction to prevent the wire rod 9 from moving in the longitudinal direction, and the wire rod 9 is locked by the frictional force.

Here, as shown in FIG. 6, the force with which the locking pin 16a and the insertion/removal pin 17b lock the wire rod 9 is the wire rod 9 inserted between the insertion/removal pin 17b and the locking pin 16a. is zero when they are not in contact with them, and becomes zero until the insertion/removal pin 17b approaches the locking pin 16a and they come into contact with the wire rod 9.

As shown in FIG. 7, when the wire rod 9 is sandwiched between the locking pin 16a and the insertion/removal pin 17b, a frictional force is generated when the wire rod 9 tries to move in the longitudinal direction. A locking force acting to keep the wire rod 9 in place without moving is generated by both the locking pin 16a and the insertion/removal pin 17b.

The locking force generated by such friction varies depending on the degree of contact of the wire rod 9 with the locking pin 16a or the insertion/removal pin 17b. That is, the degree of contact varies depending on the angle at which the wire 9 is wound around. The locking force acting to keep it in place will gradually increase.

Therefore, as shown in FIG. 8, when one or more insertion/removal pins 17b entering between the plurality of locking pins 16a are increased in degree of entry, the locking pins 16a or the insertion/removal pins 17b are hooked. The angle of the wire rod 9 that is turned increases, and the locking force thereof increases. Therefore, by routing the wire rod locking device 10, the wire rod 9 locked by the wire rod locking device 10 can be routed along a desired route.

Conversely, as shown in FIG. 7, when the degree of entry of one or more insertion/removal pins 17b entering between the plurality of locking pins 16a is reduced, the plurality of locking pins 16a and one or more The angle of the wire rod 9 wound around the insertion/removal pin 17b is reduced, the frictional force is reduced, and the locking force is lowered. When the locking force is reduced in this way, the wire rod 9 is allowed to move in the longitudinal direction, and the wire rod 9 can be stretched while being slid over the locking pin 16a and the insertion/removal pin 17b. Become.

As described above, in the wire locking device and the wire locking method of the present invention, the wire 9 is hooked around the locking pin 16a and the insertion/removal pin 17b without being gripped, and the frictional force generated between them. The wire rod 9 is locked by the . Then, by changing the degree of entry of the one or more insertion/removal pins 17b that enter between the plurality of locking pins 16a, the wires 9 are attached to the plurality of locking pins 16a and the one or more insertion/removal pins 17b. changes the locking force, the wire rod locking device 10 and the wire rod locking method can quickly adjust the locking force of the wire rod 9 without breaking even a relatively thin wire rod 9.

The degree of entry of the one or more insertion/removal pins 17b between the plurality of locking pins 16a varies depending on the rotational displacement of the cam 41 that moves the movable base 28, and the wire rod locking device of the present invention 10 is configured such that its cam 41 can be displaced to any position by a servomotor 42 .

Therefore, in the wire rod locking device 10 and the wire rod locking method of the present invention, the degree of entry of one or more insertion/removal pins 17b that enter between the plurality of locking pins 16a is irrelevant depending on the amount of displacement of the cam 41. It can be changed step by step. By displacing the cam 41 with the servomotor 42, the amount of displacement of the cam 41 can be adjusted steplessly and easily. The grip force for gripping the wire rod 9 can be easily adjusted steplessly.

Here, since the gap between the locking pin 16a and the insertion/removal pin 17b is at least equal to or greater than the wire diameter of the wire rod 9 to be locked, the wire rods 9 having different outer diameters are engaged. If it is to be stopped, it will be necessary to change the standing intervals of the locking pins 16a and the standing intervals of the insertion/removal pins 17b.

However, since the fixture 15 is attached around the end of the rotating body 13, and the fixed piece 16 and the movable piece 17 are attached to the rotating body 13 via this fixture 15, the standing intervals of the locking pins 16a are different. It becomes relatively easy to replace the fixed piece 16 or another movable piece 17 with a different standing interval between the insertion/removal pins 17b, and it is possible to easily cope with a change in the outer diameter of the wire rod 9.

To give an example of how the wire rod 9 is routed using such a wire rod locking device 10, as shown in FIG. is prohibited, and the locking pin 16a and the insertion/removal pin 17b are moved together with the wire rod 9 locked by them, the wire rod 9 locked thereon is moved, for example, as shown in FIG. 9(a). It is possible to pull it around and wind it around the tying pin 8. - 特許庁

On the other hand, in the wire rod locking device 10 of the present invention, when the degree of entry of one or more insertion/removal pins 17b entering between the plurality of locking pins 16a is reduced, the plurality of locking pins 16a and one or more The locking force of the wire 9 wound around the two or more insertion/removal pins 17b is reduced, and the wire 9 can be moved in the longitudinal direction.

For this reason, for example, after the wire 9 is wound around the binding pin 8, the locking force of the wire 9 wound around the plurality of locking pins 16a and one or more insertion/removal pins 17b is reduced, In this state, when the locking pins 16a and insertion/removal pins 17b are pulled in one direction of the wire rod 9 as shown in FIG. The wire rod 9 that is hung around moves while sliding in the longitudinal direction while being hung around the locking pin 16a and the insertion/removal pin 17b. , the wire rod 9 can be elongated.

After that, as shown in FIG. 9(c), the locking force of the wire rod 9 is increased again to prohibit the movement of the wire rod 9 with respect to the locking pin 16a and the insertion/removal pin 17b. If the pins 17b are moved together with the wire rod 9 that they lock, it is possible to tear off the wire rod 9 in the vicinity of the binding pin 8, for example, while the wire rod 9 is being routed.

In addition, in the embodiment described above, the case where the plate cam 41 is used as the cam 41 has been described. However, as long as the movable piece 17 can move with respect to the fixed piece 16 against the biasing force of the coil spring 26 as biasing means, the cam 41 can be a front cam 41 (groove cam 41) or a three-dimensional cam 41. It can be.

Moreover, in the embodiment described above, the case where the biasing means is the coil spring 26 has been described. However, as long as the movable piece 17 can move relative to the fixed piece 16, the biasing means may be of a type other than the coil spring 26.

Further, in the above-described embodiment, the servo motor 42 is used as the motor for displacing the cam 41 to an arbitrary position. motor.

Further, in the above-described embodiment, the fixed piece 16 and the movable piece 17 are overlapped with each other, and the notch 17c is formed at the opposing position at the distal end thereof to provide a predetermined interval for inserting the wire rod 9. Although the case has been described, if a predetermined space for inserting the wire rod 9 is already formed between the fixed piece 16 and the movable piece 17, the notch 17c need not be formed.

Further, in the above-described embodiment, the fixed piece 16 is provided with three locking pins 16a, and the movable piece 17 is provided with two insertion/removal pins 17b extending between them. However, as long as a desired locking force can be obtained, as shown in FIG. 10, a single insertion/removal pin 17b may be inserted between two locking pins 16a.

Furthermore, in the above-described embodiment, the wire rod 9 is alternately wound around the locking pin 16a and the insertion/removal pin 17b and bent into a bellows shape. 11, a plurality of locking pins 16a are provided on the fixed piece 16 so that the wire rod 9 is continuously wound around one or both of the locking pins 16a and the insertion/removal pins 17b. The movable piece 17 may be provided with two or more insertion/removal pins 17b.

9 wire rod 10 wire locking device 13 rotating body 16 fixed piece 16a locking pin 17 movable piece 17b insertion/removal pin 18 operation shaft 23 motor (rotating means)
26 biasing means (coil spring)
39 moving means 40 driving device 41 cam 42 servo motor (motor)

Claims (7)

a fixed piece (16), a movable piece (17) provided to be movable relative to the fixed piece (16), and a movement for moving the movable piece (17) relative to the fixed piece (16) A wire locking device comprising means (39),
A plurality of locking pins (16a) are arranged on either the fixed piece (16) or the movable piece (17) in a direction orthogonal to the moving direction of the movable piece (17),
One or more insertion/removal pins (17b) that enter or leave between the plurality of locking pins (16a) by relative movement of the movable piece (17) with respect to the fixed piece (16) move the fixed piece (16). 16) or a wire locking device provided on the other of the movable piece (17). a rotor (13) rotatable around an axis parallel to the direction of relative movement of the movable piece (17) with respect to the fixed piece (16); and rotating means (23) for rotating the rotor (13). further comprising
2. A wire locking device according to claim 1, wherein said rotor (13) is provided with a fixed piece (16) and a movable piece (17). An operating shaft (18) for moving the movable piece (17) of the rotating body (13) is inserted through the central axis of rotation of the rotating body (13), and the moving means (39) moves the operating shaft (18). 3. A wire rod locking device according to claim 2, wherein said movable piece (17) is relatively moved through said wire. The moving means (39) includes biasing means (26) for biasing the movable piece (17) in one direction with respect to the fixed piece (16), and resisting the biasing force of the biasing means (26). A wire locking device according to any one of claims 1 to 3, further comprising a driving device (40) for moving said movable piece (17) in the other direction. 5. The wire locking device according to claim 4, wherein the driving device (40) comprises a cam (41) capable of moving the movable piece (17) and a motor (42) displacing the cam (41) to an arbitrary position. Device. a fixed piece (16); a movable piece (17) provided so as to be relatively movable with respect to the fixed piece (16); A plurality of locking pins (16a) arranged in a direction perpendicular to the moving direction of the piece (17), and the fixed piece (16) provided on the other of the fixed piece (16) and the movable piece (17). A wire locking device comprising one or more insertion/removal pins (17b) that enter or leave between the plurality of locking pins (16a) by relative movement of the movable piece (17) with respect to (16). A wire locking method using (10),
inserting a wire (9) between the locking pin (16a) and the insertion/removal pin (17b) separated from the locking pin (16a);
The movable piece (17) is moved relative to the fixed piece (16) to insert the wire rod (9) between the plurality of locking pins (16a) and the plurality of locking pins (16a). Or hook it around two or more insertion/removal pins (17b) to lock it,
By changing the degree of entry of the one or more insertion/removal pins (17b) between the plurality of locking pins (16a), the plurality of locking pins (16a) and one or more of the locking pins (16a) A wire locking method, characterized by changing a force for locking the wire (9) to an insertion/removal pin (17b). The wire locking device (10) comprises a cam (41) capable of moving the movable piece (17) relative to the fixed piece (16), and a motor (42) displacing the cam (41) to an arbitrary position. further comprising
7. The degree of entry of one or more insertion/removal pins (17b) between the plurality of locking pins (16a) is varied according to the amount of displacement of the cam (41) by the motor (42). wire locking method.

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