JPH0664294B2 - Film transport device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a film transport device for automatically drawing out and transporting a film such as a roll-shaped microfilm contained in a cartridge.

(Prior Art) Conventionally, as a microfilm lead-out section of this type of film transport apparatus, there is one as shown in FIG. 3 and FIG. In such a conventional example, the microfilm F wound around the reel core 103 is rotatably attached to the cartridge 101. The conveyor belt 104 is the pulley 10.
6 rotates in the direction of arrow C, and the swing arm 105 rotates in the directions of arrows A and B to press the conveyor belt 104 against the microfilm F or separate it. Further, the conveyor pulley 110 is driven to rotate in the direction of arrow D, and the belt 1
The separation gear 107 is rotated in the direction of arrow E via 08. Then, the pinch roller 109 is the conveyance pulley 110.
At the same time, the microfilm F is nipped and conveyed.

In the above configuration, the microfilm F is led out and conveyed as follows. That is, the swing arm 105 is moved in the direction of arrow A, the conveyor belt 104 rotating by the pulley 106 is pressed against the microfilm F, and the microfilm F is conveyed by the frictional force of the conveyor belt 104. Then, the tip of the microfilm F conveyed to the separation gear 107 is taken out by the tip of the separation gear 107 and is fed between the pinch roller 109 and the conveyance pulley 110. Pinch roller 109 and transport pulley 11
The microfilm F sandwiched between 0 and 0 advances into the guide conveyed by both of them. When the microfilm F has been drawn out, the swing arm 1
05 moves in the direction of the arrow B to separate the conveyor belt 104 from the microfilm F.

(Problems to be Solved by the Invention) However, in such a conventional example, when the microfilm is pulled out, the swing arm 105 moves around the shaft 106a until the conveying belt 104 is pressed against the microfilm F. The rotation angle of the swing arm in the direction of arrow A changes depending on the winding diameter of the microfilm. That is, when the winding diameter of the microfilm F is large, the rotation angle of the swing arm 105 is small as shown in FIG. 3, but when the winding diameter of the microfilm F is small, as shown in FIG. Has a large rotation angle, and therefore the swing arm 105
The leading end (lead-out end portion) of the cartridge enters the winding storage portion 101a in the cartridge 101.

As a result, the bag portion 111 is formed between the peripheral wall 151 of the winding storage portion 101a and the swing arm 105, and the microfilm F is placed in a state in which the tip of the microfilm is located between the separation gear 107 and the transport belt 104. When carrying,
There is a problem that the leading edge of the microfilm enters the bag portion 111, making it impossible to carry it.

Therefore, the present invention has been made to solve the above-mentioned problems of the conventional example, and its purpose is to form the bag portion by the pulley closest to the outlet and the peripheral wall of the winding storage portion. It is an object of the present invention to provide a film transporting device capable of reliably transporting the leading end of the film to the separating portion without any problem.

(Means for Solving the Problems) In order to achieve the above object, in the present invention, a cartridge that rotatably accommodates a roll-shaped film in a wound state, and a roll-shaped film accommodated in the cartridge And a lead-out means for separating the leading end of the roll-shaped film fed by the feeding means and leading it out of the cartridge, wherein the cartridge is surrounded by a peripheral wall. A winding storage part for storing the wound state, a lead-out port for leading out a film from the winding storage part to the outside of the cartridge, and a winding position located downstream of the outlet in the film rotation direction. And a transfer means inlet / outlet opening in the peripheral wall so as to connect the rotary storage section and the outside of the cartridge to each other. The transfer means includes a plurality of support means supported by a swing arm. A conveyor belt is wound around a pulley and is configured to be pressed in and out of the stored roll-shaped film that is taken in and out from the carrying means taking-out port, and the pulling-out means is put in from the leading-out port and stored. In a film transport device having a separation unit that presses the roll-shaped film to separate the leading end of the film, when the transport belt is pressed to the roll-shaped film to transport the film front end, the pulley closest to the outlet is It is characterized in that it is always located outside the peripheral wall of the winding storage section.

(Operation) In the present invention having the above-described structure, first, the swing arm moves to press the transport belt against the film. The leading edge of the film is conveyed toward the outlet by the rotation of the conveyor belt.
Then, the leading end of the film is led out by the separating unit.

On the other hand, even when the winding diameter of the film is small, the swinging arm is largely rotated into the winding storage section, and the leading edge of the film is located between the separating section and the transport belt, Since the pulley closest to is always located outside the peripheral wall, the bag portion is not formed by the pulley and the peripheral wall. Therefore, the leading edge of the film is guided toward the conveying means abutted against the peripheral wall, and then accurately conveyed to the outlet by the conveying belt while passing inside the pulley. After that, it is led out of the cartridge in the same manner as described above.

(Example) Below, this invention is demonstrated based on the Example shown in figure. Second
FIG. 1 is a perspective view showing a main part of a microfilm reader to which an embodiment of a film transport apparatus according to the present invention is applied. In FIG. 1, 1 is a supply film for storing a microfilm F as a roll-shaped film. Cartridge, 2
Is a pinch roller for feeding out the microfilm F in the cartridge 1, M1 is a motor for driving the pinch roller 2, and M2 is a reel core 23 in the cartridge 1 (first
A film rewinding motor for rotating (shown), SO
L1 is a solenoid that brings the pinch roller 2 into contact with the microfilm F via the support arm 3, and 4 is a spring that moves the support arm 3, the plunger 3a, and the pinch roller 2 to separate the pinch roller 2 from the microfilm F, and SOL2 is a film winding film. A brake solenoid for the return motor M2. When the brake solenoid SOL2 does not operate, the motor M2 is rotatable and the brake solenoid SOL2
When is activated (turned on), the braking plate 5 fixed to the motor shaft is attracted to prevent rotation of the motor.

6, 7 are film guide rollers, 8 is a take-up reel, M3
Is a film winding motor for rotating the winding reel 8, and SOL3 is a brake solenoid for the motor M3. Also, although not shown, the cartridge 1
A guide plate for guiding the film is provided along the film feeding path between the take-up reel 8 and the take-up reel 8.

14 is a lamp for illuminating the microfilm F, 15 is a condenser lens, 16 is a projection lens for enlarging and projecting the image of the film F illuminated by the lamp 14 on a screen (not shown), and 17 is each frame of the microfilm F. This is a known mark detector for detecting the counting mark m provided on the side.

The mark detector 17 has a photoelectric conversion element, and when the film F is fed, the light beam from the lamp 14 is interrupted by the mark m to generate a mark detection signal, and this mark detection signal is counted by the retrieval device. It is counted with a container.

FIG. 1 is a cross-sectional view of a film lead-out portion in an embodiment of the film transport apparatus according to the present invention. In FIG. 1, the microfilm F wound around the reel core 23 is placed in the winding storage portion 1a in the cartridge 1. It is stored rotatably. The conveyor belt 24 rotates in the direction of arrow C by the pulley 26, and the swing arm 25 rotates in the directions of arrows A and B, so that the conveyor belt 24 is pressed against the microfilm F or separated therefrom. Further, on one side surface side of the cartridge 1, there is formed a lead-out port 50 that communicates the winding storage portion 1 a with the outside of the cartridge 1. The transport pulley 30 is indicated by an arrow D.
It is driven to rotate in the direction, and the separation gear 27 as a separation unit is rotated in the arrow E direction via the belt 28.
The separation gear 27 is located at the winding storage portion 1a and faces the outlet 50. The pinch roller 2 sandwiches and conveys the microfilm F together with the conveyance pulley 30. The separating means 27, the conveying pulley 30, the belt 28, and the pinch roller 2 constitute the deriving means 40.

The swing arm 25 is formed in a substantially triangular shape,
The pressure contact side with the microfilm F is formed to project,
A pulley 33 is attached to the protruding portion 25a.
The pulley 26 is driven by the drive shaft 31 that is the center of rotation of the swing arm 25 and is attached to one end of the swing arm 25, and the other end of the swing arm 25 is connected to the lead-out end 25b of the microfilm F. A pulley 35 is attached. The pulley 35 is located closest to the outlet 50 as compared with the other pulleys 33 and 26. Further, the pulley 35 is
Even when the swing arm 25 swings in the direction of arrow A, the swing arm 25 is always positioned outside the peripheral wall 51 of the winding storage portion 1a. The swing arm 25, the pulleys 35, 33, 2
6, a drive shaft 31, a conveyor belt 24, and a conveyor means 41.
Is configured. Further, it is located on the downstream side in the film rotation direction from the outlet 50, and the winding storage portion 1a and the cartridge 1 are provided.
The cartridge 1 is provided with a transfer means inlet / outlet opening 52 opened in the peripheral wall 51 so as to communicate with the outside.

In the above configuration, the microfilm F is led out and conveyed as follows. First, the swing arm 25 moves in the direction of arrow A, and the transport belt 24 is pressed against the microfilm F. The leading edge of the microfilm F is conveyed toward the outlet 50 by the rotation of the conveyor belt 24 in the direction of arrow C. Then, the tip of the microfilm F is taken out by the addendum of the separation gear 27 rotating in the direction of the arrow E, and the microfilm F is nipped and conveyed by the conveyance pulley 30 and the pinch roller 2.

On the other hand, the winding diameter of the microfilm F is small, the swing arm 25 is largely rotating in the direction of the arrow A, and the tip of the microfilm F has the separation gear 27 and the transport belt 24.
Even if the pulley 35 is located between and, the pulley 35 is always located outside the peripheral wall 51, and thus the bag portion is not formed by the pulley 35 and the peripheral wall 51. Therefore, the leading end of the microfilm F is abutted against the peripheral wall 51 and guided toward the conveying means 41, and is accurately conveyed to the outlet 50 by the conveying belt 24 while passing inside the pulley 35. After that, it is led out of the cartridge 1 in the same manner as described above.

Thus, in the above-described embodiment, unlike the conventional example, the leading end of the microfilm F is caught on the lead-out end 25b of the swing arm 25 without forming a bag in the winding storage portion 1a in the cartridge 1. Disappears.

(Effect of the Invention) As described above, according to the present invention, the film winding diameter is small, the swing arm is largely rotated into the winding storage portion, and the leading end of the film is formed between the separation portion and the transport belt. Even if it is located between the pulleys, the pulley closest to the outlet is always located outside the peripheral wall, so that the pulley and the peripheral wall do not form a bag portion. Therefore, the leading edge of the film is abutted against the peripheral wall and guided toward the conveying means, and then is accurately conveyed to the outlet by the conveying belt while passing inside the pulley.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a film lead-out section in an embodiment of a film transport apparatus according to the present invention, FIG. 2 is a perspective view showing a main part of a microfilm reader to which the same embodiment is applied, and FIG. FIG. 4 is a cross-sectional view showing a lead-out portion of the film transporting device and showing a state where the film winding diameter is large, and FIG. 4 is a cross-sectional view showing a state where the film winding diameter is small in the conventional example. DESCRIPTION OF SYMBOLS 1 ... Cartridge 1a ... Winding storage unit 50 ... Outlet port 51 ... Peripheral wall 52 ... Conveying means inlet / outlet port 40 ... Outgoing unit 27 ... Separation gear (separating unit) 41 ... Conveying unit 35 ... Pulley 25 closest to the outlet port ... rocking arm 24 ... conveyor belt F ... roll-shaped film (film)

Claims (1)

[Claims] 1. A cartridge for rotatably storing a rolled film in a wound state, a conveying means for feeding the leading end of the rolled film accommodated in the cartridge in a rotating direction, and a conveying means for conveying the rolled film. A lead-out means for separating the leading end of the roll-shaped film and leading it out of the cartridge, wherein the cartridge is surrounded by a peripheral wall and stores the roll-shaped film in a wound state; From the cartridge to the outside of the cartridge, and a film outlet, which is located on the downstream side in the film rotation direction from the outlet, and is opened in the peripheral wall so as to connect the winding storage portion and the outside of the cartridge. Transporting means entrance and exit,
The transfer means is configured such that a transfer belt is wound around a plurality of pulleys supported by a swinging arm, and the transfer belt is pressed into and out of the rolled film stored in and out of the transfer means loading / unloading port. In the film transporting device, the delivery means has a separating portion that presses the roll-shaped film that is inserted through the outlet and presses the stored roll-shaped film to separate the leading end of the film. The film transporting device, wherein the pulley closest to the outlet is always positioned outside the peripheral wall of the winding storage section when the film is transported in pressure contact with the leading edge of the film.