JPH02278235A - Microfilm leader - Google Patents

Abstract

PURPOSE:To cope with which the leading part of a microfilm is curled and caught at a guide, etc., by changing a microfilm feeding speed after returning the microfilm onto a cassette reel side when microfilm feeding can't be confirmed, and feeding it on a take-up reel side. CONSTITUTION:When the microfilm 28 is fed onto the side of the take-up reel 30, it is detected whether the microfilm 28 is fed or not by a control means 156 during the operation. When the feeding operation for the microfilm 28 is not confirmed, a conveying means is controlled by the control means 156, and the microfilm 28 is fed onto the side of the take-up reel 30 at a feeding speed different from a previous feeding speed after the microfilm is fed back onto the side of the cassette reel 26. Thus, even if the leading part of the micro film 28 is curled, caught inside a cartridge and not fed onto the side of the take-up reel 30, the curled microfilm can be fed onto the side of the take-up reel 30 by changing the feeding speed without being caught.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a microfilm reader that searches and displays microfilm wound on a cassette reel.

[Conventional technology] In a microfilm reader, a cassette reel is loaded while being fitted onto the reel shaft, and after the cassette reel is loaded, the tip of the microfilm wound on the cassette reel is unwound while being pulled out from the cassette reel. It is designed to be sent out to the take-up reel side and wound on the take-up reel. After winding the tip of the microfilm onto the take-up reel, the take-up reel is rotated in the winding direction to pull out the microfilm from the cassette reel, and the reel shaft is rotated in the winding direction to remove the microfilm. By repeatedly winding the microfilm onto a cassette reel, a desired image frame on the microfilm is retrieved and displayed.

However, if the leading edge of the film is bent in the longitudinal direction due to changes in humidity, or curled, the leading edge of the microfilm may not be fed out to the take-up reel after loading the cassette reel. In some cases, the leading edge of the microfilm could get caught inside the cartridge, causing film jams.

[Problem to be solved by the invention]

In consideration of the above facts, the present invention has been designed to remove curled microfilm even if the tip of the microfilm curls and gets caught inside the IJ joint when feeding it to the take-up reel after loading the cassette reel. The object is to obtain a microfilm leader that can feed the microfilm to the take-up reel without getting caught.

[Means to solve the problem]

In the present invention, a cassette reel is loaded in a state where it is fitted to a reel shaft, and after the cassette reel is loaded, the tip of the microfilm wound on the cassette reel is cassetted.
- a microfilm leader that pulls out the microfilm from the cassette reel and sends it out to the take-up reel and winds it around the take-up reel; cassette) After loading the reel, detect whether or not the microfilm is being fed to the take-up reel side, and if feeding of the microfilm to the take-up reel side is not confirmed, after feeding the microfilm back to the -H cassette reel side. The present invention is characterized by comprising a control means for controlling the conveyance means so as to change the feed speed and send out the microfilm to the take-up reel side.

[Effect]

In the present invention having the above configuration, after loading the cassette reel,
The leading end of the microfilm is pulled out from the cassette reel by the conveying means and sent out to the take-up reel,
This causes the leading end of the microfilm to be wound around the take-up reel.

Here, when the microfilm is being fed out to the take-up reel side, the control means detects whether or not the microfilm is being fed out. If the feeding of the microfilm cannot be confirmed, the conveying means is controlled by the control means. With this control, the microfilm is sent back to the -H cassette reel and then sent out to the take-up reel at different feed speeds. For this reason,
Even if the leading edge of the microfilm curls and gets caught inside the cartridge and is not fed out to the take-up reel, changing the microfilm feed speed will prevent the curled microfilm from getting caught and the take-up reel It can be sent to the side.

〔Example〕

(Structure of the entire device) FIG. 1 shows a microfilm reader 20 to which the present invention is applied.

In the microfilm reader 20, a cartridge loading section 22 is provided on the front side of the device (right side in FIG. 1), and a cartridge 24 is loaded into the cartridge loading section 22 from the front side of the device.

As shown in FIG. 2, the cartridge loading section 22 is provided with a reel shaft 25, and when the cartridge 24 is loaded, the cassette reel 26 of the cartridge 24 is fitted onto the reel shaft 25. .

In the cartridge 24, a microfilm 28 is pre-wound on a cassette reel 26, and
After loading the IJudge loading section 22, the microfilm 2 is transferred from the outer periphery of the microfilm winding section to the cassette reel 26.
While the tip of No. 8 is being pulled out, the device is moved towards the back of the device (towards the left in Figure 1).
It is adapted to be wound around a take-up reel 30. After winding the leading end of the microfilm onto the take-up reel 30, the take-up reel 30 is rotated in the winding direction (clockwise in FIG. 1) to pull out the microfilm 28 from the cassette reel 26, or vice versa. By rotating the shaft 25 in the winding direction (counterclockwise in FIG. 1) and winding the microfilm 28 onto the cassette reel 26, the microfilm 2 is placed between the reel shaft 25 and the winding reel 30.
8 (see FIG. 2).

A light source 32 is provided between the reel shaft 25 and the take-up reel 30, facing the transport path of the microfilm 28, and the light source 32 irradiates the microfilm 28 with light to record information on the microfilm 28. Each image can be projected onto a screen 38 through an optical system composed of a lens 34 and a plurality of reflecting mirrors 36. Further, each image recorded on the microfilm 28 can be projected onto a copying device 42 using a mirror 40 and copied, if necessary. Note that the mirror 40 is made of microfilm 28.
When projecting the image recorded on the screen 38 onto the screen 38, it is arranged as shown by the solid line in FIG.
The image recorded on the microfilm 28 is transferred to the copying device 42
When projecting onto the light beam, the light beam enters the optical path in the arrangement shown by the two-dot chain line in FIG.

(Cartridge structure) In this microfilm reader 20, the cartridge 2
4, the drive system for the microfilm 28 is constructed so that the two types of cartridges 24A and 24B shown in FIGS. 3 and 4 can be used in common.

As shown in FIG. 3, in the cartridge 24A, a cassette reel 26 is rotatably stored inside a substantially box-shaped case 44, and a microfilm 28 is wound around the cassette reel 26 inside the case 44, and the microfilm 28 is formed on the case 44. The leading end of the microfilm 28 (7) can be pulled out from the cart tF'/IJ-rule 26 through the opening 46 provided therein. In this cartridge 24A, a metal disc 56 is attached to the axial center of the cassette reel 26, and four small diameter holes 54 are formed around the axial center at approximately equal intervals and parallel to the axis. The small diameter hole 54 is for fitting with the reel shaft 25. Note that this type of cartridge includes one manufactured by 3M Company.

On the other hand, in the cartridge 24B, a cassette reel 26 is rotatably stored inside a case 50 as shown in FIG. It is similar to the cartridge 24A in that the leading end of the microfilm 28 can be pulled out from the cassette reel 26 through the opening 52. However, the cassette reel 26 is partitioned around the axis by a partition plate 47.
The case 50 is formed with a number of bottomed semicircular holes 48.
It differs from the cartridge 24A in that a large slit 58 (see FIG. 8) is formed in the side wall of the cartridge. The semicircular hole 48 is for fitting with the reel shaft 25, and the slit 58 is for driving the microfilm 28. Incidentally, this type of cartridge includes one conforming to the ANSI standard.

To explain in detail the drive system of the microfilm 28, the drive system of the microfilm 28 includes the drive system shown in FIGS.
In addition to the reel shaft 25 and take-up reel 30 shown in the figure, a fifth
As shown in FIG. 6, a drive roller 80 and a peeling claw 82
, an auxiliary drive roller 84 are provided.

(Reel shaft drive structure) At the tip of the reel shaft 25, two small diameter shafts 74 protrude parallel to the axis in correspondence with the small diameter hole 54 of the cartridge 24A, and a permanent magnet 76 is embedded. .

As a result, the reel shaft 25 is fitted to the cassette reel 26 of the cartridge 24A by attraction of the permanent magnet 76 to the disk 56 of the cartridge 24A and insertion of the small diameter shaft 74 into the small diameter hole 54 of the cartridge 24A, and the reel shaft 25 is fitted to the cassette reel 26 of the cartridge 24A. By inserting the small diameter shaft 74 into the semicircular hole 48, the reel shaft 25 is also fitted to the cassette reel 26 of the cartridge 24B. Therefore, the reel shaft 25 can be fitted to the cassette reel 26 of either the cartridge 24A or 24B.

The small diameter shaft 74 is urged by a biasing means (not shown) to protrude from the tip of the reel shaft 25, and moves in the axial direction against the biasing force of the biasing means to be embedded in the reel shaft 25. It is designed to be.

The reel shaft 25 is connected via a joint 60 to a drive shaft 62 which is rotated by the drive force of a supply motor 64 via a drive force transmission mechanism (not shown), and is rotated by the drive force of the supply motor 64. The joint 60 is connected to the reel shaft 25
, and is movable in the axial direction with respect to the drive shaft 62.

A pair of flanges 66 are formed on the outer periphery of the joint 60, and a roller 68 is fitted between the flanges 66. The roller 68 is attached to an arm 70 and connected to the output shaft of a solenoid 71 via the arm 70, and the driving force of the solenoid 71 moves the joint 60 in the axial direction to move the reel shaft 25 inside the cartridge loading section 22. It is designed to appear in.

(Drive structure of take-up reel 30) As shown in FIG. 2, the take-up reel 30 has the outer periphery of an endless belt 140 in contact with a part of the outer periphery of the microfilm winding section, and the microfilm 28 is in contact with the endless belt 140. can be wound up. The endless belt 140 is wound around a drive roller 144 that is rotated by the drive force of the take-up motor 142 via a drive force transmission mechanism (not shown), and the take-up reel 30 is rotated by the drive force of the take-up motor 142. ing.

(Drive structure of drive roller 80) The drive roller 80 is attached to the other end of an L-shaped drive arm 86 whose one end is rotatably supported by an upright base brake 81 via a fixed bin 85. The rotation of the drive arm 86 around the bin 85 causes the cartridge loading section 22 to
When the cartridge 24A is inserted into the cartridge loading section 22, the opening 4 of the cartridge 24A is inserted into the cartridge loading section 22.
6 and is brought into contact with the outer periphery of the microfilm winding portion of the cassette reel 26. On the other hand, when the cartridge 24B is inserted into the cartridge loading section 22, the rotation of the drive arm 86 around the fixing pin 85 causes the cartridge 24B to pass through the opening 52 of the cartridge 24B and come into contact with the outer periphery of the microfilm winding section of the cassette reel 26. It has become. Therefore, regardless of whether the cartridge 24A or 124B is inserted into the cartridge loading section 22, the drive roller 80 is brought into contact with the outer periphery of the microfilm winding section on the cassette reel 26 by rotation of the drive arm 860. (See Figures 8 and 9).

A torsion coil spring 98 (shown in FIG. 6) is attached to the drive arm 86 around the fixed bottle 85, and the biasing force of the torsion coil spring 98 causes the cartridge loading portion 2 to
Direction of entry into the inside of 2 (direction of arrow C in Figures 5 and 6)
is energized by A rotary ring 90 is connected to the drive arm 86 via a link 88 at an intermediate portion thereof, and is rotated around the fixing pin 85 by rotation of the rotary ring 90. One end of the link 88 is rotatably supported by a rotary wheel 90, the other end is rotatably supported by a fixed pin 92, and the intermediate part of the drive arm 86 is connected to the intermediate part via a connecting pin 94. When the rotary wheel 90 rotates, it is rotated around the fixed bin 92. rotating wheel 90
is rotated by the driving force of a motor (not shown) to rotate the link 88 around the fixed pin 92, thereby causing the connecting pin 94 to rotate.
Twisting the drive arm 86 through the coil spring 98
The direction in which the drive roller 80 is moved out from inside the cartridge loading section 22 against the urging force of (arrow C in FIGS. 5 and 6)
direction).

Further, a pulley 102 is rotatably supported on the drive arm 86 adjacent to the drive roller 80, and a pulley 102 is rotatably supported on the drive arm 86.
Pulley 1 is located at a predetermined distance from 2 in the longitudinal direction of the arm.
04 is pivotally supported, and a belt 106 is wound around each of these pulleys 102 and 104.

The pulley 102 connects to the drive roller 80 via a gear (not shown).
The drive roller 80 is connected to the drive roller 80 and rotated together with the drive roller 80. Belt 106 is connected to Boo'J102 and pulley 1
04 and is wound around the drive pulley 105.

The drive boo 'J105 is fixed to a drive shaft 108 that is rotatably supported on the base plate 81, and this drive shaft 108 is rotated by the driving force of a motor (not shown) to drive the drive roller 80 via a belt 106 and pulleys 102 and 104. It can be rotated.

The drive shaft 108 has a drive pulley 1 as shown in FIG.
A pair of transport rollers 96 are rotatably supported on both sides of the transport roller 05. The conveyance roller 96 is provided on the conveyance path of the microfilm 28, and when the microfilm 28 is conveyed, the conveyance roller 96 is
As shown in Figure 0 (C), the microfilm 28 is wrapped around the outer circumferential path 1/4 of the circumference.
8 is changed from the direction of arrow X in FIG. 10(C) to the direction of arrow Y in FIG. 10(C).

These conveyor rollers 96 include the conveyor roller 1 with a long shaft length.
12 are arranged facing each other, and the microfilm 28 can be sandwiched and transported between the transport rollers 96 and 112.

The conveyance roller 112 is attached to a rotating shaft 103 that is supported by the base plate 81 . The rotating shaft 103 is connected to a drive shaft 108 via gears 110 and 111, and is rotated by receiving the driving force of the drive shaft 108.

This allows the transport roller 96 to sandwich and transport the microfilm 28 with the transport roller 112.

Note that in this embodiment, the conveyance roller 96 and the conveyance roller 11
1.7 of the feeding speed of the microfilm 28 between
The conveyance roller 112 is rotated at double the circumferential speed.

The conveyance roller 112 is provided with a small diameter portion in the axially intermediate portion, and an endless belt 124 is wound around the belt 12.
4 and is rotated together with the rotating roller 126. The belt 124 is rotated by the driving force of the drive shaft 108 via the conveyance roller 112, and
When winding the microfilm 28 around the microfilm 28, as shown in FIG.
6 and the conveyance roller 112.

This conveyance roller 112 has a rotating shaft 103 connected to the conveyance arm 11.
4 and is capable of coming into contact with and separating from the conveyance roller 96. The transport arm 114 has one end rotatably supported on the base plate 81 via a fixing pin 116 and supports a rotating shaft 103 in the middle, and rotates around the fixed bin 116 to move the transport roller 112 against the transport roller 96. It is designed so that it can be brought into contact with and separated from it. This transfer arm 114 has a torsion coil spring 118 (
6) is attached, and the output shaft of a solenoid 122 is connected via a connecting pin 120 to the side opposite to the shaft supporting side to the fixing pin 116. The torsion coil spring 118 connects the conveying roller 112 to the conveying roller 9.
The transfer arm 114 is urged in the direction of bringing the transfer arm 114 closer to the object 6 (in the direction of the arrow in FIGS. 5 and 6).

The solenoid 122 is energized to rotate the conveyance arm 114 against the biasing force of the torsion coil spring 118, thereby separating the conveyance roller 112 from the conveyance roller 96.

(Driving structure of auxiliary drive roller 84) The auxiliary drive roller 84 is pivotally supported at the tip of an auxiliary arm 130 shown in FIG. 5.6. This auxiliary arm 130
The base is rotatably supported by a drive shaft 128 which is supported by a base plate 81, and is biased in the direction of arrow E in FIG. 5.6 by a tension coil spring 134. This biasing force rotates the auxiliary arm 130 around the drive shaft 128, causing the auxiliary drive roller 84 to protrude inside the cartridge loading section 22, thereby loading the cartridge 2 into the cartridge loading section 22.
In the inserted state of the cartridge 4B, as shown in FIG. 8, the cartridge 24B is brought into contact with the outer periphery of the microfilm winding portion of the cassette reel 26 through the slit 58. On the other hand, when the cartridge 24A is inserted into the cartridge loading section 22, the auxiliary arm 130 comes into contact with the outside of the case 44 of the cartridge 24A, as shown in FIG. This prevents the auxiliary drive roller 84 from coming into contact with the outer layer of the wound part of the microfilm 28 on the cassette reel 26, and also prevents the auxiliary drive roller 84 from sliding against the case 44 of the cartridge 24A. ing.

The drive shaft 128 has a drive boo! J131 is attached, and a part of the endless belt 132 is wrapped around it. The other part of the endless belt 132 is wound around a groove formed in the axially intermediate portion of the auxiliary drive roller 84.

This drive shaft 128 is rotated by the driving force of a motor (not shown). Therefore, the auxiliary drive roller 8
4 is rotated by the driving force of a motor (not shown) via a drive shaft 128, and the microfilm winding portion on the cassette reel 26 is rotated by a driving roller at a position where it contacts the outer periphery of the microfilm winding portion on the cassette reel 26. It is designed to be able to rotate with 80.

The belt 132 is connected to the auxiliary drive roller 8 as shown in FIG.
4 is in contact with the outer periphery of the microfilm winding portion of the cassette reel 26, and the cassette reel 26 is
The microfilm winding part extends toward the outer periphery of the microfilm winding part (from the tangent line 160 toward the unwinding direction of the microfilm winding part to the IJ-ru 26), and extends in the cartridge 24 in an inclined state. It is used for guiding the tip of the microfilm 28.

An output shaft of a solenoid 138 is connected to the auxiliary arm 130 via a pin 136. The solenoid 138 is energized and moves the auxiliary arm 130 against the biasing force of the tension coil spring 134 in a direction to move the auxiliary drive roller 84 out of the inside of the cartridge loading section 22 (in the opposite direction of arrow E in FIGS. 5 and 6). With this rotation, the auxiliary drive roller 84 is released from the position where it contacts the cassette reel 26 in the outer circumferential direction of the microfilm winding portion to the non-contact position.

(Drive structure of peeling claw 82) The peeling claw 82 is rotatably supported by a drive arm 86 via a fixing pin 140. A torsion coil spring 142 is attached to this peeling claw 82 around the fixed bin 140, and the tip of the peeling claw 82 is twisted by the biasing force of the coil spring 142 at the position where the drive roller 80 comes into contact with the outer periphery of the microfilm winding portion on the cassette reel 26. Kasetsu) IJ-
The microfilm 28 is pressed onto the roll 26 outside the winding section. Therefore, when the cassette reel 26 rotates in the unwinding direction, the tip of the microfilm 28 is peeled off from the microfilm winding portion of the cassette reel 26 while being buckled, as shown in FIG. Note that the center of rotation of the peeling claw 82 is the rotation center of the peeling claw 82, regardless of the size of the winding diameter of the winding portion of the microfilm 28 on the cassette reel 26.
The normal line of the microfilm 28 is set to remain approximately constant at the position where it contacts the winding portion of the microfilm 28.

Further, as shown in FIG. 10, the peeling claw 82 separates the belt 106 and the belt 12 from the microfilm winding section to the cassette reel 26 after peeling off the tip end of the microfilm 28.
It is now possible to guide you between 4 and 4. That is, as shown in FIG.
A part of the guide surface, which is the surface facing the belt 124, overlaps with the guide surface, so that the leading end of the film is smoothly guided from the peeling claw 82 to the belt 106.

As shown in FIG. 11, this peeling claw 82 has a peeling part 82A that comes into contact with the outer periphery of the microfilm winding part on the cassette reel 26 and peels off the tip of the microfilm 28, and a belt 106 after peeling off the tip of the microfilm 28. and the guide portion 82B that guides between the belt 124 and the belt 124, and the width of the peeling portion 82A is narrower than the guide portion 82B.
is 2 mm, and the width W2 of the guide portion 82B is 5 mm. Further, as shown in FIG. 12, the peeling portion 82A of the peeling claw 82 has a tip that is 1/1/2 the thickness T of the microfilm 28.
The tip of the microfilm 28 is formed into an arc with a curvature of 2 or less, and in this embodiment, the tip of the microfilm 28 is formed into an arc with a curvature of 30 μm for a thickness of 60 μm.

(Control device and related configuration) In the drive system for the microfilm 28 configured as described above, passage of the microfilm 28 between the transport roller 96 and the light source 32 is detected as shown in FIGS. 2 and 10. A first detection switch 150 (shown in FIG. 2) connects the microfilm 28 between the light source 32 and the winding wheel 30.
A second detection switch 152 (shown in FIG. 2) is provided for detecting the passage of. In addition, the cassette reel 26
A third detection switch 154 (
10) is provided near the peeling claw 82. Furthermore, a control device 156 (shown in FIG. 2) that receives signals from these detection switches is provided, so that the operation of each member is controlled as shown in FIG. 13. Note that the third detection switch 154 may be, for example, a limit switch.

Next, the operation of this embodiment will be explained.

In the microfilm reader 20, a cartridge 24 is inserted into a cartridge loading section 22.

After the cartridge 24 is inserted into the cartridge loading section 22, the reel shaft 25 is connected to the solenoid 71 after a predetermined period of time has elapsed.
The drive arm 86 is projected into the inside of the cartridge loading section 22 by the driving force of the supply motor 64 and then rotated in the direction of arrow A for a predetermined period of time by the driving force of the supply motor 64. and arrow C
The driving roller 80 and the peeling claw 82 are brought into contact with the outer periphery of the winding portion of the microfilm 28 onto the cassette reel 26. Note that when the cartridge 24B is used, the drive roller 80 and the peeling claw 82 are connected to the cassette reel 26.
In addition to being in contact with the outer periphery of the winding portion of the microfilm 28, the auxiliary drive arm 130 is connected to a tension coil spring 134.
The auxiliary drive roller 84 is rotated in the direction of arrow E by the urging force of
is brought into contact with the outer periphery of the winding portion of the microfilm 28 on the cassette reel 26 in a rotating state.

Here, the reel shaft 25 is rotated at low speed during the initial stage, and then at high speed. In this example, the initial speed is about 1100 rpm, 10 m5°, and then about 200 rpm.
pm, 200m5. Thereby, the reel shaft 25 is reliably fitted to the cassette reel 26, and then the winding portion of the microfilm 28 is wound onto the cassette reel 26. That is, the small diameter shaft 74 of the reel shaft 25 is inserted into the semicircular hole 48 of the cartridge 24B or the small diameter hole 54 of the cartridge 24A by the protrusion of the reel shaft 25 inside the cartridge loading section 22.
Even if the small diameter shaft 74 of the reel shaft 25 does not align with the semicircular hole 48 of the cartridge 24B or the small diameter hole 54 of the cartridge 24A, the rotation of the reel shaft 25 causes the small diameter shaft 74 of the reel shaft 25 to align with the semicircular hole 48 of the cartridge 24B or the small diameter hole 54 of the cartridge 24B. It is inserted into the hole 48 or the small diameter hole 54 of the cartridge 24A.

Moreover, since the initial rotation speed of the reel shaft 25 is low,
When the reel shaft 250 rotates, the small diameter shaft 74 of the reel shaft 25 does not pass through the semicircular hole 48 of the cartridge 24B or the small diameter hole 54 of the cartridge 24A, and the small diameter shaft 74 of the reel shaft 25 is reliably connected to the cartridge 24B. The reel shaft 25 is inserted into the semicircular hole 48 or the small diameter hole 54 of the cartridge 24A, so that the reel shaft 25 is inserted into the cartridge 24A.
It is securely fitted into the cassette reel 26 of No. 4. and,
After that, the microfilm 28 is transferred to the cassette reel 26.
At least a drive roller 80 and a peeling claw 82 are provided on the outer periphery of the winding part.
The reel shaft 25 is rotated at high speed in the winding direction of the microfilm 28 in a state in which the microfilm 28 is brought into contact with the cassette reel 26, thereby rapidly winding the winding portion of the microfilm 28 onto the cassette reel 26.

Therefore, even if the winding portion of the microfilm 28 on the cassette reel 26 has loosened, this can be quickly eliminated when the cartridge 24 is loaded into the cartridge loading portion 22.

After the reel shaft 25 is fitted to the cassette reel 26, the rotation of the reel shaft 25 is stopped by stopping the operation of the supply motor 64, and at the same time, the transfer arm 114 is rotated in the direction of the arrow by the biasing force of the torsion coil spring 118. The conveying roller 112 comes into contact with the conveying roller 96, and in this state, the gears 110 and 111 mesh with each other, and the conveying roller 11
2.96 is rotated. Further, when the rotation of the reel shaft 25 is stopped, the microfilm winding section on the cassette reel 26 receives a driving force from the drive roller 80 and rotates in the direction of unwinding the microfilm 280. The tip is brought into contact with the peeling claw 82 .

Here, when the cartridge 24B is used, the microfilm winding portion to the cassette reel 26 is rotated in the microfilm unwinding direction by the driving force of the auxiliary driving roller 84 in addition to the driving force of the driving roller 80. Therefore, due to variations in the position of the tip of the microfilm 28, the microfilm 28 is disposed between the peeling claw 82 and the drive roller 80.
Even if the leading end of the microfilm 28 is positioned, due to the rotation of the microfilm winding unit to the cassette reel 26, the leading end of the microfilm 28 will come into contact with the auxiliary driving roller 84 after passing through the driving roller 80 and before reaching the peeling claw 82. It is held down so that it does not fall apart. In addition, since the auxiliary drive roller 84 is rotated at a peripheral speed 2 to 3% faster than the drive roller 80, after the tip of the microfilm 28 reaches the auxiliary drive roller 84, there is a gap between the auxiliary drive roller 84 and the drive roller 80. It doesn't sag. After the leading edge of the microfilm 28 reaches the auxiliary drive roller 84, the belt 132 moves the leading edge of the microfilm 28 to the cassette reel 26.
The microfilm 28 is guided in a direction closer to the outer periphery of the microfilm winding part of the cassette reel 26 than the tangent line 160 (shown in FIG. 8) thereof in the unwinding direction of the winding part of the microfilm 28. The leading end of the film 28 is guided toward the peeling claw 82 without being caught on the inner periphery of the case of the cartridge 24B (see FIG. 8).

Microfilm 28 guided toward the peeling claw 82 side
The tip of the peeling nail 82 touches the peeling nail 82, and the peeling nail 82
As shown in Figures 10 (A), (B), and (C), it is peeled off while being buckled. After that, microfilm 2
8 is guided by the peeling claw 82 and sent out between the belt 106 and the belt 124.

Here, a peeling claw 82 is attached to the tip of the microfilm 28.
A narrow peeling part 82A (shown in FIG. 11) contacts the microfilm 28, and the tip of the microfilm 28 is peeled off from the outer periphery of the winding part of the microfilm 28 onto the cassette reel 26 by the peeling part 82A.

After that, the peeling claw 82 comes into contact with the wide guide portion 82B (shown in FIG. 11), and the peeling claw 82 comes into contact with the guide 1182B.
is guided between the belts 106 and 124.

Therefore, the tip of the microfilm 28 and the peeling claw 82
Since the contact area with
Microfilm 2 to cassette reel 26 by 8
The leading end of the microfilm 28 can be reliably peeled off from the outer periphery of the winding section 8.

Furthermore, after the tip of the microfilm 28 is peeled off, the microfilm 28 is guided by the guide 182B, ensuring a wide contact area, and the tip of the microfilm 28 is placed between the belt 106 and the belt 124 by the peeling claw 82. I can definitely guide you.

On the other hand, when peeling off the tip of the microfilm 28, the third
microfilm 280 by the detection switch 154
When the amount of buckling is detected and the amount of buckling of the microfilm 280 exceeds a predetermined value, the drive arm 86 is rotated in the direction of arrow B by the driving force of a motor (not shown), and the peeling claw 82 is temporarily attached to the cassette reel 26. The microfilm 28 is separated from the position where it contacts the outer periphery of the winding portion of the microfilm 28 to the non-contact position.

Therefore, when the tip of the microfilm 28 is in close contact with the outer periphery of the winding portion of the cassette reel 26 due to static electricity, the amount of buckling of the microfilm 2'8 is as shown in FIG.
It increases as shown by the two-dot chain line in A),
In such a case, the peeling claw 82 is temporarily released from the position where it contacts the outer periphery of the winding portion of the microfilm 28 on the cassette reel 26 to the position where it does not contact the outer periphery of the microfilm 28 . cassette reel 2
An elastic force acts to peel off the microfilm 28 from the outer periphery of the microfilm winding section 6.
The leading end of the cassette reel 26 is reliably separated from the outer periphery of the winding portion.

When feeding the leading end of the microfilm 28 between the bell) 106 and the bell) 124, the outer periphery of the winding portion of the microfilm 28 onto the cassette reel 26 is moved by the driving roller 80.
and the microfilm 2 under the driving force of the reel shaft 25.
80 in the unwinding direction, and this rotation sends out the leading end of the microfilm 28 between the belt 106 and the belt 124. That is, the supply motor 640 operation control causes the reel shaft 25 to rotate for a predetermined period of time when the reel shaft 25 is fitted to the cassette reel 26, or after that, the reel shaft 25 is rotated again after a predetermined period of time has elapsed after the rotation of the reel shaft 25 has stopped. 25 is rotated in the direction opposite to the arrow, and this rotation also rotates the microfilm winding section onto the cassette reel 26 in the microfilm unwinding direction. In addition,
When the cartridge 24B is used, the reel shaft 25,
The winding portion of the microfilm 28 onto the cassette reel 26 is rotated in the microfilm unwinding direction by receiving the driving force of the auxiliary drive roller 84 in addition to the driving force of the drive roller 80 .

The leading end of the microfilm 28 sent out between the belt 106 and the belt 124 is connected to the belt 106 and the belt 12.
4 and sent out between the conveyance roller 96 and the conveyance roller 112, and then sent out to the take-up reel 30 side through between the conveyance roller 96 and the conveyance roller 112. At this time, the tip of the microfilm 28 is connected to the outer peripheral path 1 of the conveyance roller 96
It is wound over a /4 circumference, and by this winding, the feeding direction is changed and fed out to the take-up reel 30 side.

Here, the conveyance roller 112 is rotated by receiving the driving force of the drive shaft 108 through meshing of gears 110 and 111.
On the other hand, the conveyance roller 96 is rotated following the conveyance roller 112.

Therefore, the leading end of the microfilm 28 can be held and transported by the transport rollers 112.96 with a large clamping force, and the microfilm 28 can be sent out to the take-up reel 30 side with a large driving force. Note that in this embodiment, the conveyance roller 96 and the conveyance roller 112
Since the transport roller 112 is rotated at a circumferential speed that is 1.7 times the transport speed of the microfilm 28 between the transport roller 96 and the transport roller 112, the microfilm 28 sag closer to the peeling claw 82 than between the transport roller 96 and the transport roller 112. Never.

When feeding the microfilm 28 to the take-up reel 30 side, passage of the microfilm 28 is detected by the first detection switch 150 and the second detection switch 152 midway through the feeding, and the first detection switch 150 detects the passing of the microfilm 28 . When the passage of
The driving roller 80 and the auxiliary driving roller 8
4 is removed from the position where it contacts the outer periphery of the winding portion of the microfilm 28 on the cassette reel 26 to the non-contact position.

At the same time, the take-up reel 30 is rotated by the driving force of the take-up motor 142. On the other hand, when the passage of the microfilm 28 is confirmed by the second detection switch 152, the rotation of the reel shaft 250 is stopped by stopping the operation of the supply motor 64 after a predetermined period of time has elapsed after the passage of the microfilm 28 is confirmed, and at the same time the rotation of the reel shaft 250 is stopped. Arm 1
14 is rotated in the opposite direction by the driving force of the solenoid 122, and the rotation of the conveyance roller 96 is also stopped. Also, the second
After the passage of the microfilm 28 is confirmed by the detection switch 152 of the reel shaft 25,
After the conveyance roller 96 stops rotating, the take-up motor 142
The rotation of the take-up reel 30 is stopped by stopping the operation of the take-up reel 30, and the microfilm 28 is wound around the take-up reel 30 during this time.

Here, if the passage of the microfilm 28 cannot be confirmed by the first detection switch 150 and the second detection switch 152, the reel shaft 25, the drive roller 80, the auxiliary drive roller 84, and the conveyance roller 96 are reversely rotated to remove the microfilm 28. is temporarily sent back to the cassette reel 26 side, and then the feeding speed of the microfilm 28 is changed to repeatedly feed the microfilm 28 to the take-up reel 30 side. If the passage of the microfilm 28 cannot be confirmed by the first detection switch 150 and the second detection switch 152 even after repeating this, the same operation is repeated. When this is repeated, the feeding speed of the microfilm 28 is changed each time. With this change, the microfilm 28 is 400m long for the first time.
It is sent out at m/secC, but in the second and third times it is sent out at 500mm/sec and 300mm/sec, respectively. Therefore, even if the leading end of the microfilm 28 is curled due to changes in humidity or the like and is caught inside the cartridge 24 and is not fed out to the take-up reel 30, changing the feeding speed of the microfilm 28 The leading end of the microfilm 28 can be sent out to the take-up reel 30 side without the curled microfilm 28 being caught. That is, the feeding speed of the microfilm 28 is 600 mm/s eC
This is effective when the tip of the microfilm 28 is curled in the longitudinal direction of the film along the winding locus to the cassette reel 26, and the microfilm 28 is
When the feed speed in step 8 is 300 mm/sec, the leading edge of the microfilm 28 is recessed in the longitudinal direction of the film)
This is effective when the microfilm 28 is curled in the opposite direction to the winding trajectory toward the +J-ru 26, and thereby the curled microfilm 28 is prevented from being caught.

After winding the tip of the microfilm 28 around the take-up reel 30, the take-up reel 30 is rotated by the driving force of the take-up motor 142 to pull out the micro-film 28 from the cassette reel 26, and the reel shaft 25 is moved to the supply motor 64. By rotating the microfilm 28 with the driving force of the cassette reel 26, the desired image frame is searched for, stopped on the optical axis, projected onto the screen 38 through the optical system, and thereby recorded on the microfilm 28. The resulting image is displayed on the screen 38.

Further, the image recorded on the microfilm 28 can be projected onto the copying device 42 and copied if necessary.

Note that the present invention is of course applicable to the copying device 42, that is, a microfilm reader without a printer.

〔Effect of the invention〕

As explained above, in the microfilm reader according to the present invention, after loading the cassette reel, the control means controls the conveying means for sending out the leading end of the microfilm wound on the cassette reel to the take-up reel. When the microfilm cannot be confirmed to be feeding out to the side, the microfilm is sent back to the -H cassette reel side, and then the feeding speed is changed to send the microfilm to the take-up reel side. Even if the cassette reel curls and gets caught on a guide or the like when being fed out to the take-up reel after loading the cassette reel, it has an excellent effect of being able to deal with this.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of the microfilm reader to which the present invention is applied, FIG. 2 is a schematic perspective view showing the microfilm drive section of FIG. 1, and FIGS. 3 and 4 are the reader of FIG. 1. A perspective view of a cartridge used in a printer,
FIG. 5 is an exploded perspective view of the main parts of the microfilm drive section shown in FIG. 1, FIG. 6 is a side view of the main parts of the microfilm drive section shown in FIG. is a sectional view taken along the line ■-■ in Fig. 6, and Figs.
FIG. 6 is a side view of the main part showing the operation of the drive arm and auxiliary drive arm when the cartridge shown in the figure is used, FIG. 10 is a side view of the main part showing the action of the peeling claw of FIG. 6, and FIG. FIG. 6 is a perspective view of the peeling claw, FIG. 12 is an enlarged side view of the main parts showing the structure of the peeling claw in FIG. 6, and FIG. 13 is a timing chart showing the operation control of the main parts of the microfilm drive section. . 20... Micro film reader, 25... Reel shaft, 26... Cassette reel, 28... Micro film, 80... Drive roller, 82... Peeling claw, 84... Auxiliary drive roller , 156...control device. Figure 3 / Figure 4 Figure +12 1-9 Figure Figure 2 A Figure (A) Figure (C) 10-- Year 6 Gany 2 Day 1, Case Indication Flat Bottom 1 Year Patent Application No. 100801 2, Title of Invention My Roll Film IJ
-Ta 3,? 4. Name of address related to the case of the person making the correction 4. Agent

Claims (1)

[Claims] (1) The cassette reel is loaded while it is fitted to the reel shaft, and after the cassette reel is loaded, the tip of the microfilm wound on the cassette reel is pulled out from the cassette reel and sent out to the take-up reel. A microfilm leader for winding the microfilm around the cassette reel, the transport means for pulling out the leading end of the microfilm from the cassette reel and feeding it to the take-up reel side after loading the cassette reel, and feeding the microfilm to the take-up reel side after loading the cassette reel. If feeding of the microfilm to the take-up reel is not confirmed by detecting the presence or absence of the microfilm, the microfilm is sent back to the cassette reel and then the feeding speed is changed to send the microfilm to the take-up reel. A microfilm reader comprising: a control means for controlling a conveyance means.