JPH07239366A - Auto handler for tab - Google Patents

Abstract

PURPOSE:To provide an auto handler for TAB which needs a short index time and can easily change width of a TAB. CONSTITUTION:Guides 5A, 5B are set on both sides of sprockets 7A, 7B to fix a rotary center. Pulleys 4A, 4B are set on both sides of the guides 5A, 5B to fix the rotary center. Moreover, sprockets 3A, 3B are arranged on both sides of the pulleys 4A, 4B. An XY stage starts to correct a TAB 1 simultaneously in X and Y directions. Pushers 9, 10 start to ascend/descend at the same time. When the pushers 9, 10 move down and a punch unit 11 operates, the TAB 1 is measured by cameras 15A, 15B or an image of the TAB before and after a punch hole is detected. A guide width for the TAB 1 is changed by the sprockets 3A, 3B, pulleys 4A, 4B, guides 5A, 5B on the rotary axis.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TAB auto handler. The TAB auto handler is connected to an IC tester to measure and classify the electrical characteristics of the TAB. The TAB includes, for example, an LCD (liquid crystal display) driving IC.

[0002]

2. Description of the Related Art A TAB auto handler automatically sequentially conveys TAB wound on a reel to a measurement position, and
This is a device that selects based on the test results of the tester.
The tension mechanism of the TAB roller wound on the reel is described in Japanese Patent Application No. 2-41356. Also, T
The precise positioning mechanism for the AB and the electrode is described in Japanese Utility Model Laid-Open No. 64-34576, Japanese Utility Model Laid-Open No. 1-163335, Japanese Patent Application No. 2-106251.

Next, the structure of a conventional TAB auto handler will be described with reference to FIG. 8 in FIG. 8 is TAB,
2A is a supply reel, 2B is a storage reel, 4C and 4D are pulleys, 5C and 5D are tension pulleys, 6C and 6D are guides, 7A and 7B are sprockets, 8 is a tape clamp, and 9 and 10 are pushers.

In FIG. 8, the TA wound around the supply reel 2A
The accommodation reel 2B winds B1 up. Sprockets 7A and 7B are arranged on both wings of the pusher 9,
A and the sprocket 7B rotate synchronously to drive the TAB1. A tape clamp 8 is arranged on the lower surface of the pusher 9, and the TAB 1 travels between the pusher 9 and the tape clamp 8. The pusher 10 raises and lowers the pusher 9, and the TAB 1 held by the tape clamp 8 and the pusher 9 is lowered, and the TAB 1 is brought into contact with the probe card 12 for testing.

The probe card 12 shown in FIG. 8 is held by the apparatus so as to face the pusher 9. The probe card 12 and the attachment unit 13 are mechanically or electrically separably connected. The attachment unit 13 is arranged on the upper part of the test head 14 of the IC tester. TAB is placed between the probe card 12 and the attachment unit 13.
An image recognition camera 17 for picking up an image 1 is arranged.

In FIG. 8, TAB1 is a sprocket 7A.
When 7B rotates in synchronization, it is fed by the pitch of TAB, and moves from the supply reel 2A to the tension pulley 5C, the sprockets 7A and 7B, the tension pulley 5D, and the accommodation reel 2B in this order.

The pulley 4C is arranged between the supply reel 2A and the tension pulley 5C, and the pulley 4D is contained reel 2B.
And the tension pulley 5D. Pulley 4C
In 4DD, the center of rotation is fixed, the circumferential surface rolls, and TAB
Guide 1 The center of rotation of the tension pulleys 5C and 5D freely moves in the horizontal direction. The guide 6C is arranged between the tension pulley 5C and the sprocket 7A,
D is arranged between the tension pulley 5D and the sprocket 7B. The guides 6C and 6D are arranged so as to face the sprockets 7A and 7B with the TAB 1 interposed, and the upper surfaces of the guides 6C and 6D are formed in an arc shape to guide the TAB 1.

In FIG. 8, a certain amount of tension is applied to TAB1 in order to prevent bending and waviness of TAB1. That is, the tension pulley 5C is given a force to move it to the left side in FIG. Similarly, the tension pulley 5D is given a force to move it to the right side in FIG.

Next, the tension mechanism of the tension pulleys 5C and 5D will be described with reference to FIG. The TAB in FIG.
The auto-handler for is symmetrical, and the tension mechanism described above is also symmetrical. Therefore, in FIG. 9, a partial enlarged view of the tension pulley 5C will be described as an example.

In FIG. 9, a pulley 52C is arranged in the moving direction of the TAB 1 fed by the sprocket 7A, and one end of a rope 53C is connected to the central axis of the tension pulley 5C moving by the pulley guide 51C. The rope 53C is hung on the pulley 52C, and the weight 54 is attached to the other end of the rope 53C.
Hanging C. The gravity applied to the weight 54C is applied to the rope 5
The tension pulley 5C is pulled to the left along the pulley guide 51C by transmitting the tension pulley 5C to the tension pulley 5C via the pulley 3C and the pulley 52C. In FIG. 9, TAB1 is given a constant tension by the gravity of the weight 54C regardless of the position of the tension pulley 5C.

Next, the operation of the tension pulley 5C adopting the tension mechanism shown in FIG. 9 will be described with reference to FIGS. In FIG. 10, 55C is a detection plate attached to the tension pulley 5C, and 56C to 58C are sensors. In FIG. 10, when the tension pulley 5C moves to the right,
The detection plate 55C is detected by the sensor 56C. At this time,
The supply reel 2A rotates in a direction in which the TAB1 is fed out at a speed higher than the feeding speed of the TAB1.

FIG. 11 is a state diagram in which the tension pulley 5C is moving leftward from the state of FIG. When the supply reel 2A rotates from the state of FIG. 10, the tension pulley 5C moves leftward regardless of the feeding of the TAB 1.

FIG. 12 is a state diagram in which the tension pulley 5C is moved further leftward from the state of FIG. Figure 11
When the state of (3) continues, the tension pulley 5C comes to the position shown in FIG. In FIG. 12, the detection plate 55C is detected by the sensor 57C, and the supply reel 2A is stopped regardless of the feeding of the TAB1. By sending out TAB1 from the state of FIG. 12, the tension pulley 5C moves to the right until the state of FIG. 10 is reached.

As shown in FIGS. 10 to 12, the tension pulley 5C moves left and right, but the tension applied to the TAB 1 is constant. When the TAB1 is cut off, the tension pulley 5C moves to the left and the detection plate 55C is detected by the sensor 58C. Since the device is stopped by the detection of the sensor 58C, the TAB1 can be protected.

FIG. 13 is a block diagram of the vicinity of a tension pulley 5D which employs the tension mechanism of FIG. FIG.
Then, when the tension pulley 5D moves to the right, the detection plate 55D is detected by the sensor 57D. At this time, the accommodation reel 2B starts rotating at a speed higher than the feeding speed of the TAB1 in the direction of winding the TAB1. From the state of FIG.
When the accommodation reel 2B rotates, the tension pulley 5D moves leftward regardless of the feeding of the TAB1. The tension pulley 5D moves, and the detection plate 55D moves to the sensor 56.
When detected in D, the accommodation reel 2B stops regardless of the feeding of TAB1. Next, by sending out TAB1, the tension pulley 5D moves to the right until the state shown in FIG. 13 is reached. When TAB1 is cut off, the tension pulley 5D moves to the left, and the detection plate 55D causes the sensor 5 to move.
Detected in 8D. The device is stopped by the detection of the sensor 58D.

Returning to FIG. 8, the operation will be described. The TAB 1 positioned by the sprockets 7A and 7B is fixed by the tape clamp 8 and the pusher 9. Next, the pusher 10 integrates the tape clamp 8 and the pusher 9 into a TA.
B1 is lowered to bring TAB1 into contact with the probe 12A of the probe card 12. With the TAB1 in contact with the probe 12A, the camera 17 captures the image data of the TAB1 and calculates the correction amount of the position of the TAB1. After capturing the image data, TAB1 is raised once, the position of TAB1 is corrected, and then TAB1 is lowered again. Next, TAB1
Sends a test start request signal from the auto-handler to the IC tester side while the probe is in contact with the probe 12A. When the test is completed, the pushers 9 and 10 rise, the sprockets 7A and 7B rotate, and the next TAB1 is sent.

In FIG. 8, the sprocket 7A and 7B rotate counterclockwise in synchronization with each other, so that the TAB 1 is moved to the position shown in FIG.
From the left side to the right side. In FIG. 8, since the TAB1 is not applied with an excessive force, the pusher 9
However, TAB1 is bending before the descent. In order to measure the deflection of TAB1, the sprocket 7B is shown in FIG.
And the sprocket 7A is rotated counterclockwise.

The flexure removing mechanism at the time of the above-mentioned TAB measurement is
This applicant discloses in Japanese Patent Application No. 1-131293. By adopting this bending mechanism in the auto handler,
The test pad of the TAB1 and the probe 12A of the probe card 12 ensure the alignment accuracy of ± 60 μm. T
In order to align the AB1 with the probe 12A with high accuracy of ± 60 μm or more, an alignment function described later is required.

Next, a method of positioning the TAB 1 and the probe 12A will be described. FIG. 14 is a partially enlarged pattern diagram of TAB1, and a reference mark 1A for positioning is provided at one corner of the pattern diagram. An IC chip 1B is mounted in the central portion, and test pads 1C connected to the IC chip 1B in a pattern are arranged on both sides of the IC chip 1B. TAB1
The pattern diagram of FIG. 14 is continuously formed at equal intervals, and the unit of the pattern of FIG. 14 is called a device.

The TAB 1 shown in FIG. 14 is prepositioned and adjusted before the apparatus is put into operation. This positioning adjustment will be referred to as initial setting. After the initial setting, the TAB1 is automatically adjusted when the apparatus is operated. This automatic adjustment is called an alignment function.

Next, the procedure of initial setting of TAB1 is shown in FIG.
Will be described. FIG. 15 is an enlarged cross-sectional view of the main part of FIG. 7C and 7D in FIG. 15 are sprockets 7A, respectively.
It is a roller that rolls to 7B and guides TAB1. Further, 17A is an image processing apparatus connected to the camera 17, and 17B is a television monitor connected to the camera 17 and displaying an image captured by the camera 17. The movable parts shown in FIG. 15 can be individually operated by switching buttons or switches.

In FIG. 15, the TAB 1 is fixed by the tape clamp 8 and the pusher 9. Next, pusher 10 TAB
1 is lowered to bring TAB1 into contact with the probe 12A.
Next, the camera 17 is moved to check the contact state between the test pad 1C and the probe 12A on the television monitor 17B. While checking on the TV monitor 17B, the probe 12
Finely move the probe card 12 so that the contact end of A is located in the center of the test pad 1C or the sprocket 7A.
・ Slightly rotate 7B to correct the position. In addition, when moving TAB1, be careful not to damage the probe 12A.
Increase B1.

When the alignment between the test pad 1C and the probe 12A is completed, the reference mark 1 is then read by the camera 17.
A is imaged and the imaged data is stored in the device as reference imaged data. The reference imaging data serves as a reference for the position where the TAB 1 and the probe card 12 come into contact with each other, and the initial setting is completed.

Next, the structure for realizing the alignment function will be described with reference to FIGS. Figure 16 shows pusher 9
10 is an enlarged perspective view of FIG. 10, and FIG. 17 is a sectional view of FIG. 16. 9A and 10A in FIG. 16 are motors, and 1A in FIG.
6A is an X table, 16B is a Y table, 16X and 16
Y is a motor.

In FIG. 16, the motor 7E is the sprocket 7
A rotates, and the motor 7F rotates the sprocket 7B. The sprocket 7A is held by an arm 7G, and the arm 7G is attached to the first side surface of the block 9B. The sprocket 7B is held by the arm 7H, and the arm 7H is attached to the second side surface of the block 9B opposite to the first side surface.

In FIG. 17, the motor 9A is mounted on the upper surface of the block 9B, the rotating shaft of the motor 9A is connected to the ball screw 9D, and the ball screw 9D is connected to the ball nut held by the pusher 9. When the motor 9A rotates,
The pusher 9 is guided by the guide 9C to move up and down.

The motor 10A is mounted on the upper surface of the front stage of the X-table 16A, the rotating shaft of the motor 10A is connected to the ball screw 10D, and the ball screw 10D is connected to the ball nut held by the block 9B. When the motor 10A rotates, the block 9B moves up and down under the guidance of the guide 10C. That is, the pusher 10 has the sprocket 7A
7B, the tape clamp 8 and the pusher 9 are integrally lifted. In FIG. 17, the vertical movement position of the TAB1 is roughly adjusted by the motor 10A, and the vertical movement position of the TAB1 by the pusher 9 is finely adjusted by the motor 9A.

Next, the structure of the XY stage 16 will be described. The XY stage 16 is composed of an X table and a Y table. The motor 16X is connected to the subsequent stage of the X table 16A. When the motor 16X rotates, the X table 16
A slightly moves in parallel with the traveling direction of TAB1. That is, the motor 16X includes the TAB1 and the sprockets 7A and 7B.
And pushers 9 and 10 are moved together in the X direction. The motor 16Y is connected to the lower stage of the Y table 16B to which the motor 16X is attached. When the motor 16Y rotates, the Y table 16B slightly moves in parallel to the direction orthogonal to the traveling direction of TAB1. That is, the motor 16Y moves the TAB1 in the Y direction.

Next, the alignment function will be described. When the device operates, the camera 17 captures the fiducial mark 1A,
The reference image data stored in the initial setting is compared. Next, a correction value is calculated from the comparison value, and the XY stage 16 is moved by the correction value, so that the TAB test pad 1C and the probe 12A can be aligned. By adopting this alignment function, TAB1 and probe card 1
2 can be aligned with high accuracy within ± 10 μm.

The tape width W of TAB1 in FIG.
For example, there are multiple types such as 35mm, 48mm, and 70mm. The TAB auto-handler in FIG. 8 can handle a plurality of types of TAB both mechanically and electrically. Figure 8
Then, the sprockets 7A and 7B and the sprocket guide 7
C. 7D, guides 6C and 6D, and tape clamp 8 are replaced according to the tape width W. On the other hand, pulley 4C / 4
D and the tension pulleys 5C and 5D can be shared without changing even if the tape width W changes. FIG. 18 shows an example of a pulley 4C which is such a shared pulley. In FIG. 18, a step is provided corresponding to the tape width W on the outer diameter of the rotating shaft that is the guide surface of the TAB. Since the pulleys 4C and 4D and the tension pulleys 5C and 5D have the structure shown in FIG. 18, they need not be replaced when the tape width is changed.

The detector groups 19 and 20 in FIG. 8 are for reading information such as the presence or absence of the IC chip 1B on the TAB 1. In FIG. 8, the detector group 19 is composed of three detectors and is arranged in front of the sprocket 7A. The detector group 20 includes three detectors, and the punch unit 11
It is placed in the latter stage. In addition, the detector group 19 and the detector group 2
0 has the same configuration.

FIG. 19 is a block diagram of one detector in the detector group 20. The detection body 20A is formed in a U-shape, and the detection body 2
A light projector 20B is attached to the first end of the front end of 0A, and the light projector 20 is attached to the second end opposite to the first end.
A light receiver 2C for receiving the light output of B is attached.

In FIG. 19, TAB1 is placed in the groove of the detector 20A.
Runs and detects TAB. The detection body 20A is the moving body 2
It is held at 0D and can move forward and backward across the traveling direction of TAB1. The moving body 20D uses the detection body 20A as the TAB.
1 can be moved and held in parallel with the traveling direction. Detector group 19
All 20 detectors have the configuration shown in FIG.
Prior to the operation of the device, the TAB detection position is adjusted.

FIG. 20 is a layout diagram of the detector group 20 on the TAB 1. In FIG. 20, the detector K1 is moved and adjusted to a position where the detection light shields the test pad 1C. Detector K2
Is moved and adjusted to a position where the detection light shields the IC chip 1B. The detector K3 is moved and adjusted to a position where the detection light shields the punch hole 1D.

In FIG. 20, the detector K1 confirms whether TAB1 is a leader tape or a TAB to be measured by the presence or absence of detection light.
The detector K2 confirms the presence / absence of the IC chip 1B based on the presence / absence of detection light, and determines whether or not the TAB1 can be measured. The detector K3 confirms the presence or absence of the punch hole 1D by the presence or absence of the detection light, and the TAB1
Determine if is already measured and classified. In FIG. 20, the above-described function is performed, and since the TAB tape width W is plural, the position of the detector is adjusted by the mechanism of FIG. 19 and 20 are technically the same as FIGS. 5 and 6 described in Japanese Patent Application No. 5-254806.

The punched holes 1D on the TAB shown in FIG. 20 are related to the various inspection steps of the TAB.
There are various cases, such as retesting a TAB having D punched, or providing a punch hole 1D with the punch unit 11 as a hole for identifying a good product or a defective product after the test. Further, the punch unit 11 may punch a punch hole or may punch the TAB IC chip 1B determined to be defective.

FIG. 21 shows the various T as described above.
It is an external view of the punch unit 11 corresponding to the type of AB and the punching method. In FIG. 21, the drive source 11A and the frame 11
B and base 11C as the first unit, punch 11D
Since the punch guide 11E, the punch holder 11F, and the punch die 11G are used as the second unit, the above-mentioned various measures can be achieved by exchanging the second unit for the first unit. Note that FIG. 21 is the same as FIG. 3 of the specification of Japanese Utility Model Application No. 04-26012.

Next, the operation of FIG. 8 will be described with reference to the flowchart of FIG. In step 201 of FIG. 22, the sprockets 7A and 7B rotate synchronously and TAB for one device.
Send 1. In step 202, the pusher 9 is lowered,
The TAB 1 is clamped and fixed in the tape clamp 8. In step 203, the pusher 10 is lowered, and the TAB 1 is lowered to the contact position with the probe card 12. At this time,
The TAB1 is positioned with an accuracy of ± 60 μm by the flexure removing mechanism described above.

At step 204, the reference mark 1A is captured by the camera 17 and the correction value of the XY stage 16 is calculated. In step 205, the pusher 10 is raised.
In step 206, the X table 1 is calculated based on the correction value.
6A is slightly moved. In step 207, the Y table 16B is slightly moved based on the correction value.

In step 208, the pusher 10 is lowered to bring the TAB 1 into contact with the probe card 12. In step 209, TAB1 is measured. Step 210
Then, the pusher 10 is lifted to release the contact between the TAB 1 and the probe card 12. In step 211, the pusher 9 is raised to release the TAB 1 from the tape clamp 8. In step 212, the punch unit 11 is driven, TAB1 is read by the detector group 20, and one index is completed.

FIG. 23 is a time chart showing the flowchart of FIG. When the synchronous rotation of the sprockets 7A and 7B is completed in FIG. 23A, the pusher 9 is lowered in FIG. When the pusher 9 stops descending,
The pusher 10 descends after 3 c. When the pusher 10 stops descending, the image of TAB1 is read in FIG.
Calculate the correction value. When the above calculation is completed, next, as shown in FIG.
When the pusher 10 is completely lifted in 3c, the X table 16A moves in FIG. X table 16A in FIG.
Is completed, the Y table 16B moves in FIG.

When the Y table 16B is completely moved in FIG. 23C, the pusher 10 is raised in FIG. 23C. Pusher 1
When the value of 0 is completed, a test start request signal is sent from the auto handler to the IC tester side. When the measurement is completed in FIG. 23C, the pusher 10 rises in FIG. 23C. When the pusher 10 is completely lifted, the pusher 9 moves up in FIG. When the pusher 9 is completely lifted, the punch unit 11 is driven in FIG. 23 and the TAB 1 is confirmed by the detector group 20. When TAB1 is confirmed in FIG. 23A, the sprockets 7A and 7B rotate to instruct to send the next TAB1. In FIG. 23A, the time TINDEX from the start of driving the sprockets 7A and 7B to the next driving is 1 of this device.
It will be index time.

[0043]

FIG. 24 is a partial configuration diagram centering on the punch unit 11. When the pushers 9 and 10 lower the TAB 1 from the state of FIG. 24A, the tension pulley 5D moves to the left to the state of FIG. In the state of FIG. 24A, TAB1 has moved several millimeters at the positions of the punch unit 11 and the detector group 20. In the state of FIG. 24A, the punch hole position accuracy and device detection cannot be compensated. Therefore, in the prior art, after the measurement is completed, the punch unit 11 is driven or the device is detected by the detector group 20 while the pushers 9 and 10 are raised. Therefore, the index time T shown in FIG.
There is a problem that INDEX takes about 4 seconds. In addition, as shown in FIG. 23, the drive time of the X table 16A and the Y table 16B, and the pushers 9 and 10 are individually controlled, which is a factor that lengthens the index time.

When the rotation speed of the sprockets 7A and 7B is increased in order to shorten the index time, the tension mechanism shown in FIG. 10 must make the rotation speed of the supply reel 2A faster than the feed speed of the sprockets 7A and 7B. . However, since the following ability of the tension pulley 5C is also limited, the TAB1 is impacted. This situation is the same on the accommodation reel 2B side, and a tension mechanism for shortening the index time is required.

Further, in FIG. 8, when changing the tape width of the TAB 1, the sprockets 7A and 7B, the sprocket guides 7C and 7D, the guides 6C and 6D, and the tape clamp 8 are replaced. Tension pulley 5C / 5D and pulley 4C / 4
D does not require replacement as shown in FIG. 18, but TA
The running height changes depending on the width of B1. Therefore, in the same situation as in FIG. 24, there is a problem in that the positional accuracy of punch holes and the device detection are not stable.

It is an object of the first invention to provide an TAB autohandler having a structure in which a punch hole is formed in the TAB during measurement of the TAB. 2nd and 3rd invention provides the method of shortening an index time in 1st invention.
4th and 5th invention provides the winding mechanism which does not give an impact force to TAB in 1st invention. A sixth to a ninth invention are, in the first invention, an object of the present invention to provide a guide structure for easily switching the tape width of the TAB.

[0047]

In order to achieve these objects, the first invention is a TAB wound around a supply reel 2A.
The reel 2B is wound up, the sprocket 7A and the sprocket 7B rotate synchronously and travels on the TAB 1, and the tape clamp 8 and the pusher 9 are arranged between the sprocket 7A and the sprocket 7B, and are held by the tape clamp 8 and the pusher 9. In the TAB auto-handler in which the pushed TAB1 is lowered by the pusher 10 and the TAB1 is brought into contact with the probe card 12, the TAB1 sent from the supply reel 2A is moved to the pusher 9 side and the sprocket 3A is moved to the accommodation reel 2B side. Sprocket 3B traveling on TAB1, pulley 4A interposed between sprocket 3A and sprocket 7A to fix the center of rotation, pulley 4B interposed between sprocket 7B and sprocket 3B to fix the center of rotation, pulley 4A and sprocket 4A Placed between 7A, TAB A tension pulley 6A to press the rising direction, the tension pulley 6 is arranged between the sprockets 7B and the pulley 4B, pressed against the upward direction TAB1
B, between the pulley 4A and the tension pulley 6A,
A guide 5A for fixing the rotation center and guiding the TAB 1,
It is arranged between the tension pulley 6B and the pulley 4B, the rotation center is fixed, and the guide 5B for guiding the TAB1 and the guide 5B and the pulley 4B are arranged.
And a punch unit 11 for punching holes, hold the rotation of the sprocket 3B, and punch holes while measuring TAB1.

A second aspect of the present invention is a sprocket 7A, a sprocket 7B, a tape clamp 8, a pusher 9,
The pusher 10 is integrally arranged on the XY stage 16, and the X table 16A is TAB1 on the XY stage 16.
Is slightly moved in the traveling direction, the TAB1 on the XY stage 16 is slightly moved in the direction orthogonal to the traveling direction, the camera 15 for image processing refers to the reference mark 1A of the TAB1, and the XY stage 16 is moved to the XY stage 16. TAB retained
When the position 1 is corrected, the X table 16A and the Y table 16B start moving at the same time.

A third aspect of the invention is a pusher 9 and a pusher 10.
Start descent at the same time or start rising at the same time.

In the fourth aspect of the invention, the sprocket 3A is arranged below the supply reel 2A, the tilt guide 21 guides the TAB 1 hanging from the supply reel 2A by its own weight, and the sensors 23 and 24 are the tilt guide 21 and the sprocket. 3A
If the sensor 23 and the sensor 24 do not detect TAB1, the supply reel 2A
Sends TAB1 and sensor 23 and sensor 24
When B1 is detected, the supply reel 2A stops rotating.

In the fifth aspect of the invention, a sprocket 3B is arranged below and outside the accommodation reel 2B, the inclined guide 22 guides the TAB 1 hanging from the accommodation reel 2B by its own weight, and the sensors 25 and 26 are inclined guides 22 and the sprocket. 3B
If the sensor 25 and the sensor 26 do not detect TAB1 when the presence or absence of TAB1 hanging between them is detected, the accommodation reel 2B
Stops its rotation, and when the sensors 25 and 26 detect TAB1, the accommodation reel 2B winds TAB1.

In the sixth invention, the sprocket 3A comprises a stepped sprocket 31, a stepped sprocket 32 and a rotary shaft 3.
3 and the sprocket 3B is a stepped sprocket 3
4 and the stepped sprocket 35 and the rotary shaft 36, the rotary shaft 33 and the rotary shaft 36 are formed with a plurality of grooves V corresponding to TABs having different widths on the circumference, and the stepped sprocket 31 and the stepped sprocket 32 are formed. A ball B that enters the groove V is provided on the stepped portion of the stepped sprocket 34 and the stepped sprocket 35, and the ball B
A compression coil spring S for pressing is built in the stepped portion to accommodate TABs having different widths.

In the seventh invention, the pulley 4A comprises a stepped pulley 41, a stepped pulley 42 and a rotary shaft 43, and the pulley 4B has a stepped pulley 44, a stepped pulley 45 and a rotary shaft 4.
TAB with different widths for the rotary shaft 43 and the rotary shaft 46.
To form a plurality of grooves V corresponding to
1, a stepped pulley 42, a stepped pulley 44, and a stepped pulley 45 are provided with a ball B that enters the groove V, and a compression coil spring S for pressing the ball B is built in the stepped portion.
The step portion of 1 and the step portion of the stepped pulley 42 are arranged to face each other,
The stepped portion of the stepped pulley 44 and the stepped portion of the stepped pulley 45 are arranged so as to face each other, and the TAB having a different width is guided by the stepped portion.

In the eighth invention, the guide 5A comprises a stepped guide 51, a stepped guide 52 and a rotary shaft 53, and the guide 5B has a stepped guide 54, a stepped guide 55 and a rotary shaft 5.
TAB with different widths for the rotary shaft 53 and the rotary shaft 56.
A plurality of grooves V corresponding to the
1, a stepped guide 52, a stepped guide 54, and a stepped guide 55 are provided with a ball B that enters the groove V, and a compression coil spring S for pressing the ball B is built in the stepped portion.
The step portion of 1 and the step portion of the stepped guide 52 are arranged to face each other,
The stepped portion of the stepped guide 54 and the stepped portion of the stepped guide 55 are arranged so as to face each other, and the TAB having a different width is guided by the stepped portion.

In the ninth invention, the tension pulley 6A comprises a stepped circular arc block 61, a stepped circular arc block 62 and a swing plate 63, and the tension pulley 6B swings between a stepped circular arc block 64 and a stepped circular arc block 65. The swing plate 63 and the swing plate 66 are provided with a plurality of holes H corresponding to TABs having different widths, and the stepped arc block 61, the stepped arc block 62, the stepped arc block 64, and the step. Project the pin P into the hole H on the bottom of the attached circular arc block 65,
The circular arc step portion of the stepped circular arc block 61 and the circular arc step portion of the stepped circular arc block 62 are arranged to face each other, and the circular arc step portion of the stepped circular arc block 64 and the circular arc step portion of the stepped circular arc block 65 are arranged to face each other. Then, the TAB having a different width is guided at the circular arc step portion.

[0056]

According to the structure of the first invention, guides 5A and 5B for fixing the center of rotation are arranged on both wings of the sprockets 7A and 7B which rotate the TAB 1 synchronously. Guide 5A
Pulleys 4A and 4B that fix the center of rotation of the TAB 1 are arranged on both wings of the 5B so that the traveling of the TAB 1 is parallel. Pulley 4A
Sprockets 3A and 3B for pitch-feeding TAB1 are arranged on both wings of 4B. When the pushers 9 and 10 and the sprockets 7A and 7B are united to move the TAB 1 up and down, the sprocket 3B stops rotating.
B1 does not run to the pusher 9/10 side. Therefore,
The punch unit 11 can be driven regardless of the operation of the pushers 9 and 10, and the TAB after the punch unit 11 is driven.
The state 1 can be detected stably.

In the second aspect of the invention, the X table 16A for correcting the minute movement of the TAB1 in the traveling direction and the Y table 16B for correcting the minute movement of the TAB1 in the direction orthogonal to the traveling direction start to move at the same time. Index time can be shortened.

In the third invention, the first pusher 9 and the second pusher 9
Since the pusher 10 starts descent or rises at the same time, the indexing time can be shortened as compared with the conventional control method.

In the fourth invention, the supply reel 2A always supplies the TAB1 to the sprocket 3A with a margin, so that the index feeding speed of the sprockets 7A and 7B can be increased. Moreover, since the TAB falls by its own weight, no impact force is applied.

In the fifth aspect of the invention, since the accommodation reel 2B always accommodates the TAB1 fed from the sprocket 3B with a margin, the index feeding speed of the sprockets 7A and 7B can be increased. Moreover, since the TAB falls by its own weight, no impact force is applied.

In the sixth to eighth inventions, a plurality of grooves V are formed on the circumference of the rotary shaft corresponding to the tape width of the TAB 1, and the drive wheel or the guide wheel has the holding position on the rotary shaft at the groove V. The position of the drive wheel or the guide wheel opposed to each other is easily changed by being pressed by.

In the ninth aspect of the invention, the oscillating plate has TAs of different widths.
A plurality of holes H corresponding to B are formed, and a pin P that fits into the hole H is formed in the stepped arc block, so that the interval between the opposed stepped arc blocks can be easily changed on the oscillating plate.

[0063]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the structure of the TAB auto handler according to the present invention will be described with reference to the embodiment of FIG. In FIG. 1, 3A and 3B are sprockets, 4A and 4B are pulleys, 5A and 5B.
Is a guide, 6A and 6B are tension pulleys, 15A and 1
5B is a camera for image processing, and others are the same as those in FIG.

In FIG. 1, the sprocket 3A causes the TAB 1 sent by the supply reel 2A to travel to the pusher 9 side. The sprocket 3B has a TAB1 on the accommodation reel 2B side.
Run. The pulley 4A fixes the center of rotation and is disposed between the sprocket 3A and the sprocket 7A. The pulley 4B fixes the center of rotation, and the sprocket 7B
And the sprocket 3B.

The tension pulley 6A is arranged between the pulley 4A and the sprocket 7A and presses the TAB 1 in the upward direction. The tension pulley 6B is arranged between the sprocket 7B and the pulley 4B and presses the TAB 1 in the upward direction. The guide 5A fixes the center of rotation, is arranged between the pulley 4A and the tension pulley 6A, and guides the TAB 1.
The guide 5B fixes the center of rotation, and the tension pulley 6B
And the pulley 4B, and guides the TAB1. The punch unit 11 is arranged between the guide 5B and the pulley 4B.

Reference numerals 21 and 22 in FIG.
3 to 26 are light reflection type sensors. In FIG. 1, a sprocket 3A is arranged on the lower outside of the supply reel 2A, and the inclined guide 21 hangs from the supply reel 2A by its own weight.
It is arranged to guide B1. Sensor 23 and sensor 2
4 is a T that hangs between the tilt guide 21 and the sprocket 3A.
The presence or absence of AB1 is detected. A sprocket 3B is arranged on the outer side below the accommodation reel 2B, and the inclined guide 22 is arranged so as to guide the TAB 1 hanging from the accommodation reel 2B by its own weight. The sensor 25 and the sensor 26 detect the presence or absence of the TAB 1 that hangs between the tilt guide 22 and the sprocket 3B.

The camera 15A is arranged between the pulley 4A and the guide 5A, and the camera 15B is arranged between the punch unit 11 and the pulley 4B. The cameras 15A and 15B are connected to the image processing device 15C. The camera 15A images the TAB1 before measurement, and the captured data is used as the image processing device 15C.
Send to. The camera 15B images the TAB 1 and compares it with the image data from the camera 15A or compares it with the punching command of the punch unit 11. Camera 15A
In FIG. 15B, the detector groups 19 and 20 in FIG. 8 are replaced with image processing.

The camera 15 is arranged below the test head 14 and passes through the central hollow hole of the test head 14 to
The image of B1 is recognized. The camera 15 is the image processing device 15.
It is connected to C and corrects the contact position of TAB1.

Next, the operation of the sensors 23 to 26 shown in FIG. 1 will be described. When the sensors 23 and 24 do not detect TAB1, the supply reel 2A rotates and sends out TAB1. When the sensor 23 and the sensor 24 detect TAB1, the supply reel 2A stops rotating and the sprocket 3A is stopped.
Rotates and sends TAB1. When the sensor 25 and the sensor 26 do not detect TAB1, the accommodation reel 2B stops rotating, and the sprocket 3B rotates to send TAB1.
When the sensor 25 and the sensor 26 detect TAB1,
The sprocket 3B stops rotating, and the storage reel 2B moves to the T
Take up AB1. Thus, in FIG. 1, TAB1 is always supplied and accommodated with a margin.

Next, the operation of FIG. 1 will be described with reference to the flowchart of FIG. In step 101 of FIG. 2, the sprockets 7A and 7B rotate synchronously and the sprocket 3
A and 3B rotate and send TAB1 for one device. In step 102, the pushers 9 and 10 are driven simultaneously, and T
Hold AB1 in the tape clamp 8 and fix it
B1 is lowered to the contact position with the probe card 12. At this time, TAB1 is ± 60μ due to the bending mechanism.
Positioned with an accuracy of m.

In step 103, the camera 15 captures the reference mark 1A and calculates the correction value of the XY stage 16. In step 104, the pusher 10 is raised.
In step 105, the X table 1 is calculated based on the correction value.
6A and Y table 16B are simultaneously minutely moved.

In step 106, the pusher 10 is lowered to bring the TAB 1 into contact with the probe card 12. In step 107, a test start request signal is sent to the IC tester and TAB1 is measured. At the same time, the punch unit 11 is driven, the images of TAB1 are read by the cameras 15A and 15B, and the image data are compared.

When the measurement is completed in step 107, the pushers 9 and 10 are simultaneously raised in step 108,
The contact between the TAB1 and the probe card 12 is released, the TAB1 is released from the tape clamp 8, and one index is completed.

FIG. 3 is a time chart showing the flowchart of FIG. Sprocket 7A in Figure 3a
・ When 7B and sprockets 3A and 3B have finished running TAB1 for one index, pusher 9.1
0 starts descending at the same time. In FIG. 3D, the image of TAB1 is read and the correction value is calculated. When the above calculation is completed,
Next, the pusher 10 rises in FIG.

When the pusher 10 is completely lifted, the operation shown in FIG.
X table 16A and Y table 16 as shown by
B moves at the same time. When the pusher 10 is completely lowered in FIG. 3C, the measurement is started in FIG. 3C, and at the same time, the punch unit 11 is driven in FIG. 3C and the TAB 1 is confirmed by the cameras 15A and 15B.

When the measurement is completed in FIG. 3C, the pushers 9 and 10 simultaneously start to rise in FIGS. Pusher 9
When 10 has been raised, the next TAB1 is commanded to be sent in FIG. In FIG. 3, the pushers 9 and 10 start driving at the same time. Further, the X table 16A and the Y table 16B are simultaneously driven. Since the measurement start operation, punch drive operation, and image reading of TAB1 are started in parallel, the index time TINDEX is shortened.

Next, a guide structure for easily switching the tape width of the TAB according to the present invention will be described. 4A is a side view of the sprocket 3A, and FIG. 4A is a side view of the sprocket 3B. In FIG. 3, the sprocket 3A includes a stepped sprocket 31, a stepped sprocket 32, and a rotating shaft 33. Similarly, the sprocket 3B has a stepped sprocket 34
And a stepped sprocket 35 and a rotary shaft 36.
Three grooves V corresponding to TABs having different widths are circumferentially formed on the rotary shaft 33 and the rotary shaft 36. Stepped sprocket 31
The stepped sprocket 32, the stepped sprocket 34, and the stepped sprocket 35 are provided with a ball B entering the groove V, and a compression coil spring S for pressing the ball B is built in the stepped portion. In FIG. 4, since the TABs having different widths are supported, the interval W1 of the stepped sprockets facing each other can be easily switched on the rotation axis.

FIG. 5A is a side view of the pulley 4A, and FIG. 5A is a side view of the pulley 4B. In FIG. 4, the pulley 4A includes a stepped pulley 41, a stepped pulley 42, and a rotating shaft 43. Pulley 4B is stepped pulley 44 and stepped pulley 4
5 and a rotary shaft 46. Rotating shaft 43 and rotating shaft 46
In the stepped pulley 41, the stepped pulley 42, the stepped pulley 44, and the stepped pulley 45 that form a plurality of grooves V corresponding to TABs having different widths on the circumference, a ball B that enters the groove V is provided. A compression coil spring S for pressing the ball B is built in the step portion. In FIG. 5, the stepped portion of the stepped pulley 41 and the stepped portion of the stepped pulley 42 are arranged to face each other, and the stepped portion of the stepped pulley 44 and the stepped portion of the stepped pulley 45 are arranged to face each other. Will guide you through TABs with different widths. That is, the interval W in FIG.
2 can be easily switched on the axis of rotation.

FIG. 6A is a side view of the guide 5A, and FIG. 6A is a side view of the guide 5B. In FIG. 6, the guide 5A includes a stepped guide 51, a stepped guide 52, and a rotary shaft 53. The guide 5B is a stepped guide 54 and a stepped guide 5.
5 and a rotary shaft 56. Rotating shaft 53 and rotating shaft 56
A plurality of grooves V corresponding to TABs having different widths are formed on the circumference. The stepped guide 51, the stepped guide 52, the stepped guide 54, and the stepped guide 55 are provided with a ball B entering the groove V, and a compression coil spring S for pressing the ball B is built in the stepped part. The step portion of the step guide 51 and the step portion of the step guide 52 are arranged to face each other, the step portion of the step guide 54 and the step portion of the step guide 55 are arranged to face each other, and the tape width of the TAB1 is set to W3. Guide TABs with different widths by changing.

FIG. 7 is a detailed view of the tension pulley 6B. Since the tension pulley 6A and the tension pulley 6B are arranged line-symmetrically in FIG. 1, a detailed view of the tension pulley 6A is omitted in FIG. Note that, in FIG. 7, reference numerals in parentheses indicate components of the tension pulley 6A.

FIG. 7A is a front view, FIG. 7A is a side view, and FIG. 7C is a plan view. In FIG. 7, the tension pulley 6B includes a stepped circular arc block 64, a stepped circular arc block 65, and a swing plate 66. The swing plate 66 has a plurality of holes H corresponding to TABs having different widths. A pin P that enters the hole H projects from the bottom surfaces of the circular arc block 64 and the stepped circular arc block 65. Arrange the circular arc step portion of the stepped circular arc block 64 and the circular arc step portion of the stepped circular arc block 65 so as to face each other.
The width W4 between the stepped circular arc blocks 64 and 65 can be easily changed corresponding to the width W of 1.

In FIG. 7, the oscillating plate 66 oscillates around the rotation axis 66A. One end of the wire rope 67 is connected to the edge of the rotation axis 66A. The wire rope 67 is hung on a pulley 68, and a weight 69 is hung on the other end of the wire rope 67. Gravity on the weight 69 causes TAB1
Is always pressed with a constant force in the ascending direction.

The tension pulley 6A comprises a stepped circular arc block 61, a stepped circular arc block 62, and a swing plate 63. The swing plate 63 has a plurality of holes H corresponding to TABs having different widths. A pin P that enters the hole H projects from the bottom surface of the arc block 61 and the stepped arc block 62. Stepped arc block 61 and stepped arc block 6
By arranging two arcuate step portions so as to face each other, the width W4 between the stepped arc blocks 61 and 62 can be easily changed corresponding to the width W of the TAB 1.

The swing plate 63 swings around the rotation axis 63A. One end of the wire rope 67 is connected to the edge of the rotation axis 63A. The wire rope 67 is hung on a pulley 68, and a weight 69 is hung on the other end of the wire rope 67. Due to the gravity applied to the weight 69, the TAB 1 is constantly pressed in the upward direction with a constant force.

[0085]

According to the first aspect of the present invention, the first guide and the second guide for fixing the center of rotation are arranged on both blades of the first sprocket and the second sprocket that rotate the TAB synchronously. A first pulley and a second pulley that fix the center of rotation by making the traveling of the TAB parallel to both wings of the first guide and the second guide.
Place the pulley. A third sprocket and a fourth sprocket for pitch-feeding the TAB are arranged on both blades of the first pulley and the second pulley. The first pusher, the second pusher, the first sprocket and the second sprocket
The sprocket stops rotating, so the TAB does not travel to the pusher side. Therefore, the punch unit can be driven regardless of the operation of the pusher, and the TAB state can be stably detected during the driving of the punch unit.

According to the second aspect of the present invention, the X table for correcting the slight movement of the TAB in the traveling direction and the Y table for correcting the small movement of the TAB in the direction orthogonal to the traveling direction are simultaneously started to move, so that the index table can be used as compared with the conventional control method. You can save time.

In the third aspect of the invention, the first pusher and the second pusher for raising and lowering the TAB simultaneously start to descend or simultaneously rise, so that the index time can be shortened as compared with the conventional control method.

In the fourth aspect of the invention, the supply reel always supplies TAB to the third sprocket with a margin, so
The index feed speed of the sprocket and the second sprocket can be increased. Moreover, since the TAB falls by its own weight, no impact force is applied.

According to the fifth aspect of the invention, the accommodation reel always accommodates the TAB fed from the fourth sprocket with a margin, so that the index feeding speed of the first sprocket and the second sprocket can be increased. Moreover, since the TAB falls by its own weight, no impact force is applied.

In the sixth to eighth inventions, a plurality of grooves V are formed on the circumference of the rotating shaft in correspondence with the tape width of the TAB, and the drive wheel or the guide wheel has the holding position on the rotating shaft at the groove V. The positions of the driving wheels or the guide wheels facing each other can be easily changed by pressing the button.

The ninth aspect of the invention is that the swing plate has a TAB with a different width.
Is formed in the stepped circular arc block, and a pin inserted into the hole is formed in the stepped circular arc block, and the interval between the opposed stepped circular arc blocks can be easily changed on the rocking plate. In addition, the first tension pulley and the second tension pulley are TA at a constant pressure.
Push B up.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a TAB auto handler according to the present invention.

FIG. 2 is a flowchart illustrating the operation of FIG.

FIG. 3 is a time chart of FIG.

FIG. 4 is a side view of the sprockets 3A and 3B of FIG.

5 is a side view of pulleys 4A and 4B of FIG. 1. FIG.

6 is a side view of the guides 5A and 5B of FIG. 1. FIG.

FIG. 7 is a detailed view of a tension pulley 6B.

FIG. 8 is a configuration diagram of a conventional TAB auto handler.

9 is a partially enlarged view of the tension pulley 5C of FIG.

FIG. 10 is a state change diagram of FIG. 9;

11 is a state change diagram of FIG.

FIG. 12 is a state change diagram of FIG. 11.

13 is a configuration diagram of the vicinity of a tension pulley 5D of FIG.

FIG. 14 is a partially enlarged view of TAB1.

15 is an enlarged cross-sectional view of the main parts of FIG.

16 is an enlarged perspective view of pushers 9 and 10. FIG.

FIG. 17 is a sectional view of FIG.

FIG. 18 is a diagram showing an example of a pulley 4C that is a shared pulley.

19 is a configuration diagram of one detector in the detector group 20. FIG.

20 is a layout diagram of a detector group 20 on the TAB 1. FIG.

FIG. 21 is an external view of the punch unit 11.

FIG. 22 is a flowchart illustrating the operation of FIG.

FIG. 23 is a time chart of FIG. 22.

FIG. 24 is a partial configuration diagram centering on the punch unit 11.

[Explanation of symbols]

 1 TAB 1A fiducial mark 2A supply reel 2B accommodation reel 3A sprocket 3B sprocket 4A pulley 4B pulley 5A guide 5B guide 6A tension pulley 6B tension pulley 7A pulley 7B pulley 8 tape clamp 9 pusher 10 pusher 11 punch unit 13 probe 12 Test head 15 Camera 16 XY stage 16A X table 16B Y table 21 Tilt guide 22 Tilt guide 23 Sensor 24 Sensor 25 Sensor 26 Sensor 31 Stepped sprocket 32 Stepped sprocket 33 Rotation shaft 34 Stepped sprocket 35 Stepped sprocket 36 Rotation axis 41 Step Pulley 42 Step Pulley 43 Rotation Shaft 44 Step Pulley 45 Step Pulley 46 Rotating shaft 51 Stepped guide 52 Stepped guide 53 Rotating shaft 54 Stepped guide 55 Stepped guide 56 Rotating shaft 61 Stepped arc block 62 Stepped arc block 63 Oscillating plate 64 Stepped arc block 65 Stepped arc block 66 Swing Moving plate B Ball H Hole P Pin S Compression coil spring V Groove

Claims (9)

[Claims] 1. The accommodation reel (2B) winds up the TAB (1) wound around the supply reel (2A), and the first sprocket (7A) and the second sprocket (7B) rotate in synchronization with each other. 1) and drive the first sprocket (7A) and the second sprocket (7A)
The tape clamp (8) and the first pusher (9) are arranged between the tape clamp (8) and the TAB (1) held by the tape clamp (8) and the first pusher (9), and the second pusher (10). ) Is lowered and the TAB (1) sent from the supply reel (2A) is moved to the first pusher in the TAB autohandler for contacting and testing the TAB (1) with the probe card (12).
The third sprocket (3A) traveling to the (9) side, the fourth sprocket (3B) traveling the TAB (1) to the accommodation reel (2B) side, the third sprocket (3A) and the first sprocket (3A). The first pulley (4A) which is interposed between the sprockets (7A) and fixes the center of rotation, and the second pulley (4A) which is interposed between the second sprocket (7B) and the fourth sprocket (3B) and fixes the center of rotation. The pulley (4B), the first pulley (4A) and the first sprocket (7A), the first tension pulley (6A) that presses the TAB (1) in the upward direction, and the second pulley (4A). The second tension pulley (6B), which is arranged between the sprocket (7B) and the second pulley (4B) and presses the TAB (1) upward, the first pulley (4A) and the first tension pulley. It is placed between (6A), the center of rotation is fixed, and it is placed between the first guide (5A) that guides the TAB (1) and the second tension pulley (6B) and the second pulley (4B). , Times The center is fixed and it is placed between the second guide (5B) that guides the TAB (1) and the second guide (5B) and the second pulley (4B), and punched on the TAB (1) according to the test result. An auto-handler for TAB, comprising a punch unit (11) for making holes, holding rotation of a fourth sprocket (3B) and punching holes while measuring TAB (1). 2. The first sprocket (7A), the second sprocket (7B), the tape clamp (8), the first pusher (9), and the second pusher (10) are integrally formed. It is placed on the XY stage (16) and the X table (16A) is placed on the XY stage (1
6) Move the upper TAB (1) slightly in the traveling direction, and
(16B) moves the TAB (1) on the XY stage (16) slightly in a direction orthogonal to the traveling direction, and the camera (15) for image processing
Refer to the TAB (1) reference mark (1A) in
When correcting the position of TAB (1) held in (16), X
The TAB auto-handler according to claim 1, wherein the table (16A) and the Y table (16B) start moving at the same time. 3. A first pusher (9) and a second pusher (1).
The automatic handler for TAB according to claim 1, wherein 0) starts descent at the same time or simultaneously starts ascending. 4. A third sprocket (3A) is arranged below and outside the supply reel (2A), and a first inclined guide (21) guides a TAB (1) hanging from the supply reel (2A) by its own weight. And first
Sensor (23) and second sensor (24) of the first tilt guide (2
Supply if TAB (1) hanging between 1) and 3rd sprocket (3A) is detected, and if 1st sensor (23) and 2nd sensor (24) do not detect TAB (1) Reel (2A) is TAB
Sending out (1), the first sensor (23) and the second sensor (24)
2. The automatic handler for TAB according to claim 1, wherein the supply reel (2A) stops rotating when the TAB (1) is detected by. 5. A fourth sprocket (3B) is arranged on the lower outside of the accommodation reel (2B), and a second inclined guide (22) guides the TAB (1) hanging from the accommodation reel (2B) by its own weight. And then the third
Sensor (25) and fourth sensor (26) of the second tilt guide (2
2) and 4th sprocket (3B) hanging TAB (1) is detected, if the 3rd sensor (25) and 4th sensor (26) does not detect TAB (1) The reel (2B) stops rotating, and the third sensor (25) and the fourth sensor (26) move to TAB.
2. The automatic handler for TAB according to claim 1, wherein when the (1) is detected, the accommodation reel (2B) takes up the TAB (1). 6. The third sprocket (3A) comprises a first stepped sprocket (31), a second stepped sprocket (32) and a first rotary shaft (33), and a fourth sprocket (3). 3B) comprises a third stepped sprocket (34), a fourth stepped sprocket (35) and a second rotating shaft (36), and a first rotating shaft (33)
And a plurality of grooves (V) corresponding to TABs having different widths are formed on the circumference of the second rotation shaft (36), and the first stepped sprocket (31) is formed.
And grooves on the steps of the second step sprocket (32), the third step sprocket (34) and the fourth step sprocket (35).
The sphere (B) that enters the (V) is provided, and the compression coil spring (S) that presses the sphere (B) is built in the step portion to accommodate TABs having different widths. Third sprocket and fourth sprocket. 7. The first pulley (4A) is a first stepped pulley.
(41), the second stepped pulley (42) and the third rotating shaft (43), and the second pulley (4B) is the third stepped pulley (44) and the fourth stepped pulley. It is composed of (45) and the 4th rotation shaft (46), and the 3rd rotation shaft (43) and the 4th rotation shaft (46) are surrounded by a plurality of grooves (V) corresponding to TABs having different widths. The first stepped pulley (41), the second stepped pulley (42), the third stepped pulley (44), and the fourth stepped pulley (45) at the stepped portion (V ) Is provided, and the compression coil spring (S) that presses the ball (B) is built in the stepped portion, and the stepped portion of the first stepped pulley (41) and the second stepped pulley (41) are provided. The step portions of (42) are arranged to face each other, and the step portion of the third stepped pulley (44) and the step portion of the fourth stepped pulley (45) are arranged to face each other, and the step portion has a width The first pulley and the second pulley according to claim 1, which guide different TABs. 8. The first guide (5A) is a first stepped guide.
(51), the second step guide (52) and the fifth rotating shaft (53), the second guide (5B) is the third step guide (54) and the fourth step guide. (55) and the 6th rotating shaft (56), the 5th rotating shaft (53) and the 6th rotating shaft (56) are surrounded by a plurality of grooves (V) corresponding to different TAB widths. To form a groove (V) in the step portion of the first step guide (51), the second step guide (52), the third step guide (54) and the fourth step guide (55). ) Is provided, and the compression coil spring (S) that presses the ball (B) is built in the step portion, and the step portion of the first step guide (51) and the second step guide are provided. The step portions of (52) are arranged so as to face each other, and the step portion of the third stepped guide (54) and the step portion of the fourth stepped guide (55) are arranged so as to face each other, and the width at the step portion is set. The first guide and the second guide according to claim 1, characterized in that they guide different TABs. 9. The first tension pulley (6A) comprises a first stepped arc block (61) and a second stepped arc block (62).
And the first swing plate (63), the second tension pulley
(6B) is composed of a third stepped circular arc block (64), a fourth stepped circular arc block (65) and a second rocking plate (66), and a first rocking plate (63) and a first rocking plate (63). A plurality of holes (H) corresponding to TABs having different widths are made in the second swing plate (66) to form the first stepped arc block (61).
And holes on the bottom of the second stepped arc block (62), the third stepped arc block (64) and the fourth stepped arc block (65)
The pin (P) that goes into (H) is projected, and the circular arc step portion of the first stepped circular arc block (61) and the circular arc stepped portion of the second stepped circular arc block (62) are arranged so as to face each other. Stepped arc block (6
2. The arc step portion of 4) and the arc step portion of the fourth stepped arc block (65) are arranged so as to face each other, and TABs having different widths are guided by the arc step portion. A first tension pulley and a second tension pulley.