JP3023619B2 - Sleeve caulking device for filament - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filament sleeve caulking device for crimping high-melting-point metal such as molybdenum metal sleeves at both ends of a high-melting-point metal coil such as tungsten used for filling.

[0002]

2. Description of the Related Art Conventionally, when manufacturing an incandescent lamp or the like, there is a step of caulking a sleeve made of molybdenum (hereinafter referred to as Mo sleeve) to a lamp filament coil. In this process, the operator positions with a pair of tweezers, etc. on a small jig that has a groove corresponding to the coil outer diameter and has a sleeve guide positioned on both sides at right angles to the coil.
Further, after the Mo sleeve is inserted into one side of the coil, it is crimped by a solenoid with a weight.

[0003]

However, when caulking is performed manually by an operator in this way, the angle and cutting of the coil leg vary, and the jig also has a tolerance in accordance with the coil outer diameter tolerance. Due to the dimensional difference, it is difficult to determine the crimping position of the Mo sleeve. In the case of crimping, not only the Mo sleeve part but also the coil part etc. may be crimped. there were. As described above, the crimping strength of the Mo sleeve is determined by the operation using the jig and the solenoid with the weight. However, this operation has individual differences among the workers, and the quality of the manufactured product varies. Further, since the shape of the sleeve is not always constant, the variation in the crimping strength in the above-mentioned work is promoted.

Accordingly, one technical object of the present invention is to provide a Mo sleeve caulking device for a lamp coil capable of reducing variation between coils and stabilizing quality.

Another object of the present invention is to provide a sleeve caulking device for a filament which automates the operation of the sleeve, thereby saving labor and enabling unmanned operation.

[0006]

According to the present invention, there is provided a coil transfer means for sequentially supplying, transporting, and unloading a filament coil having linear ends, and directing the supplied filament coil in a predetermined direction. Chuck coil fixing means for fixing in a state where the sleeve is fixed, sleeve mounting means for automatically inserting sleeves from both ends of the fixed filament coil from the predetermined direction, and sleeve mounting means
A sleeve supply means for supplying the sleeve, and a pressurizing means for pressurizing the sleeve loaded into the filament coil ends provided in the coil fixing means, said filler
And a filament coil.
At each axial end of the coil, the filament coil is
By narrowing the spacing along the axial direction, the filler
Chuck that corrects both ends of the ment coil in the predetermined direction
And the coil mounting means is provided on the sleeve.
Inverted trapezoidal cross section that guides insertion of both ends of filament coil
Shaped guide groove, and the pressing means is provided in the guide groove.
The sleeve mounted on both ends of the filament coil
To obtain a sleeve crimping device for a filament. Further, according to the present invention, the Fi
In the sleeve caulking device for a lament,
The setting means includes a filament coil housed in the chuck.
And a clamp for holding the filament. Further
According to the present invention, any one of the filament
In the leave caulking device, the guide groove is
Guides on both sides of the rack
The pressing means is opposed to the pair of guide tables.
And a pusher for pressurizing the sleeve.
Filament sleeve crimping device is obtained, characterized in that that.

[0007]

In the present invention, the coil transfer means sequentially supplies, transports, and unloads filament coils having linear ends. The coil fixing means fixes the supplied coil. The sleeve mounting means inserts sleeves at both ends of the fixed coil. The pressurizing means presses the sleeves loaded at both ends of the coil, thereby inserting the sleeves at both ends of the filament coil and pressurizing them to perform caulking.

[0008]

Embodiments of the present invention will be described below. FIG. 1 is a view showing a sleeve caulking device for a filament according to an embodiment of the present invention. In FIG. 1, a sleeve caulking device for a filament includes a coil transfer section 10, a sleeve supply section 20, a sleeve mounting section 30, and a coil fixing section 4.
0 and a pressing unit 50. Coil transfer unit 10
Has a disc 11, a straight feeder 12, and a ball feeder 13. At the bottom of the disk 11, this disk 11
Are provided with a motor 15 composed of a step motor for turning the motor around a central axis (not shown) and a cylinder 16. The cylinder 16 raises and lowers the entire disk 11 together with the central axis. A linear feeder 12 adjacent to the disk 11 and a ball feeder 13 adjacent to the linear feeder 12
Supplies the coils separated and aligned. The sleeve supply unit 20 has twin feeders 21 and 22 provided adjacent to the disk 11 and opposed to the support table 100, respectively, and supplies and separates and aligns the coils. The twin feeders 21 and 22 operate according to a transport signal from a control unit (not shown). Further, a sleeve mounting portion 30 is provided below the twin feeders 21 and 22. The sleeve mounting portion 30 is a cylinder 31 and 32 provided opposite to each other on the support table 100 and an insertion cylinder after the sleeves mounted on both ends of the coil are conveyed. It has been processed. The coil fixing section 40 has a chuck 41 arranged to insert a coil between the cylinders 31 and 32. The chuck 41 corrects the variation of the coil and performs the prescribed positioning. The pressurizing section 50 is located above the chuck 41 and supports 10.
A guide 51 and a guide 52 are attached to the support plate 101 on the upper side, and a clamp 45 is disposed behind the chuck 41. Solenoids 53 and 54 are provided corresponding to the guides 51 and the guide 52. , Clamp 45
Clamps the coil, and a mold bar to be described later is driven vertically by the solenoids 53 and 54. These guides 51 and 52 serve as an attach guide for guiding the swaging position of the sleeve and for holding the caulking mold bar 55. Also, the solenoid 53
And 54 drive the caulking mold to generate and supply a caulking force.

FIG. 2 is a perspective view mainly showing the leading end portion of the linear feeder 12 of the apparatus shown in FIG. In FIG. 2, the ball feeder 13 and the straight feeder 1 following the ball feeder 13
The coil made of a high melting point metal such as a tungsten wire separated and aligned by the step 2 is attracted to the stopper plate 12a by the stopper plate 12a and the positioning vacuum nozzle 12b, and thus is placed at the tip of the linear feeder 12. The state is shown. Above the tip of the linear feeder 12, a suction nozzle 14 for sucking the coil 1 is provided.
Is located. The suction nozzle 14 operates in response to a discharge signal from a control unit (not shown). During operation, the suction nozzle 14 is located immediately above the coil 1 in the distal end of the linear feeder 12. Reference numeral 12c in the figure is a bolt having a hexagonal hole at an end.

Returning to FIG. 1, the coils supplied from the ball feeder 13 to the linear feeder 12 are provided with suction nozzles (in FIG. 1, three suction nozzles 14a, 14b, and 14c are provided) for eliminating coil loading, unloading, and operation errors. ). At that time, nozzle 1
4a descends as the disk 11 descends, and the linear feeder 1
2 suck up the coil above. The sucked coil is
As the disk 11 rises and rotates, it rises while being sucked by the suction nozzle, and is rotated by 60 °.
0 is supplied to the chuck 41. Further, the disk 11 is raised and rotated by 60 °, and the suction nozzle 14a enters a standby state. After the sleeve supplied to the coil fixing unit 40 is subjected to sleeve processing for mounting and caulking the sleeve, the operation proceeds to the operation of discharging the processed coil. First, disk 1
1 rises, rotates 60 °, descends, stops above the coil fixing portion, descends, is sucked up by the second suction nozzle 14b, and further rotates and descends the disk 11 by 60 °. Further, similarly to the discharging operation, another coil different from the above-described coil is sucked up by the third suction nozzle 14c, and the disk 11 is raised and rotated by 60 ° as described above, and the same operation is repeated and performed. . The nozzle 14
a and 14b can also be used to remove these in the event of an operation error, depending on the coil or sleeve or the like.

FIG. 3 shows the sleeve supply unit 20 shown in FIG.
It is a perspective view which shows in detail. In FIG. 3, the suction port 25a 'of the suction nozzle 25a is located above the tip of the twin feeder 21. The feeder 21 supplies sleeves mounted on both ends of the coil instead of the coil by a mechanism similar to that of the above-described straight-ahead feeder 12. This feeder 1
The suction nozzle 25a sucks the sleeve at the end of the nozzle 2 and supplies it to the sleeve mounting section 30 described later. The suction nozzle 25a is attached to one end of a positioning shaft 25b extending at right angles to the suction nozzle 25a via a disk-shaped attachment member 25c. The upper end of the positioning shaft 25b penetrates the arm plate 27 and is supported by the arm plate 27 by a support member 27a. In addition, 27b,
27c is a bolt for fixing the arm plate. The shaft 25b is extendable and contractible in the vertical direction. Therefore, a coil spring 25d is inserted around the shaft 25b to urge the shaft in the vertical direction. Support part 29
Is a support plate 29a, a cylinder 29b fixed to the support plate and extending in the horizontal direction, and a support column 2 inserted into the support plate 29a and fixed by bolts 29c and 29d.
9e, and the support column 29e is fixed by a support end 29f so as to stand upright on the support table. Reference numeral 29g is a bolt for fixing.

FIG. 4 shows the sleeve mounting section 30.
The Mo sleeve 2 conveyed from the sleeve supply unit 20 is placed in the inverted trapezoidal groove 33a of the guide table 33,
An insertion tool 34 is arranged at the rear. The guide base 33 is mounted on a mounting base 35 on the support base 100 (see FIG. 1), and the rectilinear guide 36 passes through the upper end 37a of the inverted L-shaped fixing member 37 and is fixed with a nut 37b. Are attached to another support member 35a fixed to the bolts 35b, 35b on the mounting base 35, and bolts 37c, 37c
It is fixed at. Behind the insertion tool 34, a rectilinear guide 36 and an air cylinder 3 for driving the rectilinear guide 36 are provided.
1 is located. The rectilinear guide 36 is provided with a ball bearing bearing 38 on the side, and the ball bearing bearing 38 is disposed inside a U-shaped vertical steady rest 39. Thereby, the straightness of the straight guide 36 is ensured. The reference numeral 31a denotes the air cylinder 31.
An air hose for supplying compressed air to the air hose. The sensor 60 is provided to confirm the failure of the mounting operation, that is, the detachment of the sleeve. When the sleeve is mounted, the sensor 60 supplies a confirmation signal for shifting to the next process to a control unit (not shown). I do.

FIG. 5 is an enlarged view of the distal end of the sleeve 2 and the insertion tool 34 shown in FIG. A guide groove 33a of a guide table 33 on which the sleeve 2 is placed (see FIG. 4).
And a plate-shaped protrusion 34a which is separated from the upper end by 1 and protrudes by a half of the length of the sleeve 2.

FIG. 6 is a perspective view showing a main part of the caulking device shown in FIG. 1, and shows a part of each of the coil fixing portion 40, the sleeve mounting portion 30, and the pressing portion 50, and a mechanism for removing the sleeve. 6, the guide table 3 shown in FIG.
The three tips are opposed to each other via a chuck 41. A die bar 55 provided with a blow nozzle 57 connected to a blow device 56 is provided above the guide table 33.
Are provided in such a manner that the molds 55a face each other.
The sleeve removal mechanism prevents the sleeve from being completely inserted,
If left in the groove, it interferes with the next individual operation, and is provided to eliminate the sleeve that has not been inserted. The elimination operation of the sleeve elimination mechanism is performed on the remaining sleeves which are not inserted into both ends of the coil in the guide table 33 located on the left and right sides of the chuck 41 with the chuck 41 as a center. In this case, referring to FIG.
As described above, when the insertion confirmation signal, which is another function of the sensor 60 (see FIG. 4), is not output within the set time, the blow unit 56 is controlled by the drive signal from the control unit.
Is driven, compressed air is blown out from the blow nozzle 57, and the sleeve and coil that have been incorrectly mounted are blown off from the guide table 33. The mold bar 55 located above the coil chuck 41 is connected to the guides 51 and 52 (FIG. 1) via the shafts 55b and 55c.

FIG. 7 is a perspective view (a) and a partially enlarged view of a main part of the caulking device according to the embodiment of the present invention, and FIG. 8 is a schematic front view of the caulking device shown in FIG. 7A and 8, the coil 1 is fixed on the chuck 41,
Both ends 1a of the coil 1 are arranged on guide stands 33 located on both sides. After each sleeve is inserted into both ends 1a, it is swaged by the upper left mold 55a and the upper right mold 55a. When inserting the coil, the legs forming both ends 1a of the coil 1 must be at the center of the sleeve,
At the time of caulking, the leg of the coil 1 must be in contact with the lower part inside the inner diameter of the sleeve, so that the entire elevating table 70 fixing the guide table 33 must be raised.
As shown in FIG. 8, the raising and lowering mechanism of the lifting table 70 comes into contact with the sliding block 73, the lifting table 70 having a linear bearing 75 on the table, and the lower slope 73 a of the sliding block 73. A wedge block 72 having an inclined surface 72a, and a rod 71a
And a cylinder driven via the On the other hand, the swaging mechanism moves up and down in the direction indicated by the arrow 55b. Here, the raising and lowering operation of the elevator 70 is shown in FIG.
This will be described with reference to FIG. When the coil 1 is fixed on the chuck 41,
The driven wedge block 72 advances through the rod 71a, that is, in FIG. 8, the wedge blocks 72 on both sides advance so as to reduce the interval, and the inclined surface 72a of the wedge block 72a
With the inclined surface 73a having the same inclination,
The elevator 70 is pushed up along the arrow 74. At this time, the linear bearing 75 accurately sets the ascending position. The amount of rise is indicated by the arrow 72 of the wedge block 72.
The position is determined by the reciprocation in the direction along b, and the position is determined by the stopper block 76. The lifting table 70
As shown in FIG. 7 (a), projecting portions 70b which protrude outward and are continuous in the vertical direction are provided at both ends of the. The protrusion 70b is inserted into the guide groove 102a of the fixing member 102 fixed to the support member 103, and is guided in the vertical direction.

FIGS. 9A and 9B are electron micrographs showing the sleeve metal structure used in the embodiment of the present invention. Here, the shape of the sleeve before swaging is shown. In these figures, the sleeves before crimping are cylindrical in shape with cuts along the length direction. These sleeves are automatically mounted on both ends of the coil by the above-mentioned device, and are triangular, trapezoidal and elliptical by caulking. It is transformed into a sleeve having a desired outer shape such as a shape.

FIG. 10 shows the positional relationship between the clamp 45, the adjusting part 42 of the coil fixing part 40, and the coil 1 shown in FIG. In FIG. 10, the chuck 41 includes a pair of chuck bodies 44 provided on the support table 43 so as to face each other. The chuck body 44 is provided with the chuck 41, an adjusting portion 42 provided at both ends of the chuck 41 and configured to adjust the movement in the approaching / separating direction 68, and other fixing members 46,
47 and 48 are provided. The adjusting section 42 has a fine movement screw 42a having a hexagonal hole. Chuck 41
, A chuck groove 41c is formed by an opposing plate member 41a and a plate member 41b provided at one end of the plate member 41a. Incidentally, reference numerals 41d, 46a, 47a and 48a in the figure denote bolts for fixing. In addition, coil chuck 4
The upper clamp 45 is movable in a vertical direction indicated by an arrow 67 in the figure.

FIG. 11 shows the coil chuck 41 of FIG.
FIG. 4 is a plan view showing an operation pattern of a caulking mechanism of the coil 1 of FIG. As shown in FIG. 11A, the transferred coil 1
Is loaded in the chuck groove 41c of the chuck 41. At this time, both ends 1a of the coil 1 extend in a direction intersecting the center axis of the coil 1 and in mutually opposite directions. next,
As shown in FIG. 11B, the chuck 41 operates so as to reduce the interval from both sides, and the chuck groove 41c is formed.
And both ends 1a of the coil 1
Is corrected in a direction orthogonal to the central axis of the coil 1. Next, the sleeve 2 is inserted and fixed from the end of the coil 2 indicated by the arrow 81 in the figure. Further, as shown in FIG. 11 (c), the mold 55a is lowered, and both ends of the coil on which the sleeve 2 is mounted are caulked, and then the chuck 41 is opened. FIG. 11D is a cross-sectional view taken along the line AA of the tip of the coil in FIG. 11C. Then, as shown in FIG. 11E, the caulking mechanism such as the mold 55 is released, and the caulking process is completed. FIG. 11 (f) is the same as FIG. 11 (d).
FIG. 3B is a cross-sectional view taken along the line BB of the coil tip portion which has been crimped in the same manner as in FIG.

FIG. 12 is a front view showing an operation pattern of the caulking mechanism shown in FIG. In FIG. 12A, the guide groove 33c is inserted into the chuck groove 41c, and both ends 1a thereof are
a. Next, the clamp 45 facing the chuck 41 is lowered in the direction shown by the arrow 81 in the figure,
While holding down the coil 1, the sleeve 2 is supplied to the position where both ends of the coil extend in the guide groove 33a as shown by an arrow 82 (FIG. 12B). Subsequently, the insertion tool 34 moves in the approaching direction 84, and the sleeves 2 are inserted into the coil ends 1a, respectively (FIG. 12C). Further, the mold 55a descends as shown by the arrow 85, and the sleeve 2 is fixed to both ends of the coil (FIG. 12D). Next, the clamp 45 is raised, and subsequently, the guide base 87 is raised, the coil having the sleeves 2 at both ends is taken out from the chuck groove 41c of the chuck 41, and the guide base 87 and the mold 55a are pressed. The sleeve 2 inserted into both ends 1a of the coil 1 is pressurized by 88 (FIG. 12 (e)).
Finally, as shown in FIG.
The guide table 33 descends until it is accommodated in the groove, is taken out in the direction indicated by the arrow 89, and the caulking process is completed. The caulking pressure is applied in an extremely free state so as not to apply excessive stress to the material.

Next, the overall operation of the sleeve caulking device according to the embodiment of the present invention will be schematically described. In FIG. 1, the lamp filament coil put into the parts feeder of the coil supply unit 10 is tooled, separated and aligned, and arranged on the linear feeder 12. The coil 1 is picked up by the suction nozzles 14a, b, c and the disk 11 having a contact area of 80% of the coil outer diameter and is compressed from both sides to a predetermined position by the coil fixing part 40, and at the same time, The clamp 45 with the smoother surface facing the coil descends, corrects the lifting of the coil 1, and positions both ends of the coil. The sleeves are separated and aligned by the part feeders 21 and 22 of the sleeve supply unit, and are simultaneously conveyed to inverted trapezoidal grooves located on both sides of the coil chuck 41 by means having a suction nozzle similar to the coil, and are transferred to the coil clamp 45. In response to the completion signal, the sleeves are inserted into both ends of the coil at the same time on both sides, and the weighted solenoid and the weighted solenoid are actuated by the signal that the insertion tool of the sleeve mounting portion 30 returns to its original state, and both sleeves are caulked. After the caulking is completed, the clamp is raised, the chuck 41 is opened, and the sheet is discharged from the coil fixing section 41 by the same unloading means as the coil supply.

[0021]

As described above, according to the present invention,
It is possible to provide a filament caulking device for a filament, which is space-saving, small-sized, and in which the mechanisms are piled up as much as possible, and is integrated. According to the present invention,
To deal with the processing of the product, use the degree of freedom of the coil,
In addition, by taking care and planning so that unreasonable processing stress does not remain, it is possible to provide a filament sleeve caulking device that can be improved in quality as compared with the conventional prime mover. Further, according to the present invention, it is equipped with a mechanism for automatic loading and unloading including products and an elimination mechanism.
It is possible to provide a sleeve caulking device that enables unmanned operation and contributes to labor saving and improvement in productivity. Furthermore, according to the present invention, it is possible to provide a filament sleeve caulking device having a mechanism that is simple and almost maintenance-free. According to the present invention,
It is possible to provide a filament caulking device for a filament which leads to a reduction in cost of a filament coil.

[Brief description of the drawings]

FIG. 1 is a view showing a sleeve caulking device for a filament according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a distal end of the straight feeder 5 shown in FIG.

FIG. 3 is a diagram showing a feeder 21 and a suction nozzle 25a of a sleeve supply unit 20 shown in FIG.

FIG. 4 shows a sleeve mounting section 30;

FIG. 5 shows the Mo sleeve 2 and the insert 34 shown in FIG.
It is a front-end | tip part enlarged view.

FIG. 6 is a perspective view showing a main part of the device.

FIGS. 7A and 7B are a perspective view and a partially enlarged view of a main part of a caulking device according to an embodiment of the present invention.

FIG. 8 is a schematic front view of the caulking device shown in FIG. 7;

FIGS. 9A and 9B are used in an embodiment of the present invention.
3 is an electron micrograph showing each of the sleeve metal structures .

FIG. 10 is an enlarged perspective view showing a mechanism of a coil loading unit 40 and a clamp 35.

11 is a plan view showing an operation pattern of a caulking mechanism of the coil 1 of the coil chuck section 41 of FIG.

12 is a diagram showing an operation pattern of the caulking mechanism shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coil 1a End part 2 Mo sleeve 10 Coil transfer part 11 Disk 12 Linear feeder 12a Stopper plate 12b Vacuum nozzle 12c Bolt 13 Ball feeder 14 Suction nozzle 14a Suction nozzle 14b Suction nozzle 14c Suction nozzle 15 Motor 16 Cylinder 20 Sleeve supply part 21 Feeder 22 Feeder 25a Suction nozzle 25a 'Suction port 25b Positioning shaft 25c Mounting member 25d Coil spring 25e Arrow indicating movement direction 25f Arrow indicating movement direction 25i Support base 27a Support member 27b Bolt 27c Support member 27 Arm plate 28 Moving shaft 28b Shaft 28b Shaft 28c Stopper 28d Shaft 28e Shaft 28g Stopper 28h Bolt 28i Adjusting bolt 29 Supporting part 29a Support plate 29b D 29c Bolt 29d Bolt 29e Supporting column 29g Bolt 30 Sleeve mounting part 31 Cylinder 31a Air hose 32 Cylinder 33 Guide base 33a Guide groove 34 Insertion tool 34a Projection 35 Mounting base 35b Bolt 35a Support member 36 Straight guide 37 Fixing member 37a Upper end 37b 37c Bolt 38 Ball Bearing Bearing 39 Vertical Sway 40 Coil Fixing Part 41 Chuck 41a Plate 41b Plate 41c Chuck Groove 41d Bolt 42a Fine Screw 42 Adjustment Part 43 Supporting Base 44 Chuck Body 45 Clamp 46 Fixing Member 46a Bolt 47 Fixing Member 47a Bolt Fixing member 48a Bolt 50 Pressing part 51 Guide 52 Guide 53 Solenoid 54 Solenoid 55 Mold bar 55a Mold 55b Arrow 56B -Device 57 Blow nozzle 60 Sensor 68 Arrow indicating movement direction 70 Elevating table 70b Projection 71 Cylinder 71a Rod 72 Wedge block 72a Slope 73a Inclined surface 73 Sliding block 74 Arrow 75 Linear bearing 76 Stopper block 81 Arrow 82 Arrow 84 Proximity Arrow indicating the direction of movement 85 arrow indicating the descending direction 87 guide base 88 arrow indicating the pressing direction 89 arrow 100 support base 101 support plate 102 fixing member 102a guide groove 103 support member

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideo Moriguchi 6-40-1, Aoto, Katsushika-ku, Tokyo Tokyo Tungsten Co., Ltd. Tokyo Works (72) Inventor Koji Nagasaka 6-40-1, Aoto, Katsushika-ku, Tokyo Tokyo Tungsten Co., Ltd. Tokyo Works (56) References JP-A-61-45560 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01K 3/04

Claims (3)

(57) [Claims] 1. A coil transfer means for sequentially supplying, transporting and unloading a filament coil having linear ends, and a chuck coil fixing means for fixing the supplied filament coil with both ends oriented in predetermined directions. Sleeve mounting means for automatically inserting sleeves from both ends of the fixed filament coil from the predetermined direction;
Three for supplying the sleeve to the sleeve mounting means
And a pressurizing means for pressurizing the sleeves loaded at both ends of the filament coil , wherein the coil fixing means accommodates the filament coil.
And both ends of the filament coil in the axial direction.
At intervals of the filament coils along the axial direction.
By narrowing both ends of the filament coil
A chuck for straightening the sleeve in the predetermined direction;
Guide with an inverted trapezoidal cross section that guides the insertion of
And the pressurizing means is provided with the filament coil in the guide groove.
A sleeve caulking device for a filament, wherein the sleeve is pressurized at both ends thereof. 2. A filament sleeve according to claim 1.
In the caulking device, the coil fixing means is provided with a filter accommodated in the chuck.
A filament caulking device for a filament , further comprising a clamp for holding a lament coil . 3. A filament for filament according to claim 1 or 2.
In the leave caulking device, the guide groove is
Guides on both sides of the rack
The pressing means is opposed to the pair of guide tables.
And a pusher for pressurizing the sleeve.
Filament sleeve caulking and wherein the that.