JPS62293232A - Film carrying device - Google Patents

Abstract

PURPOSE:To surely lead out a film by projecting a rocking arm in the pressing direction against the film so that the leading end part of the oscillation arm is always positioned on the outside of a winding storing part at the time of leasing out the film. CONSTITUTION:The rocking arm 25 is moved in the arrow A direction to press a carrying belt 24 against the microfilm F. Even if the winding diameter of the microfilm F is small and the arm 25 is largely rotated in the arrow A direction, the leading-out end part 25b is positioned on the outside of the winding storing part 1a by a projected part 25a of the arm 25 without being entered into the storing part 1a. Since the carrying belt 24 is rotated in the arrow C direction by a pulley 24, the leading end part of the microfilm F is carried to a separation gear 27 without forming a bag part. The leading end of the microfilm F is taken out by the tip of the gear 27 and the film F is held and carried by a carrying pulley 30 and a pinch roller 2.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a film conveyance device that automatically takes out and conveys a film such as a roll-shaped microfilm stored in a cartridge. .

(Prior Art) Conventionally, as a microfilm lead-out section of this type of film transport device, there have been some as shown in FIGS. 3 and 4. In such a conventional example, the microfilm F wound around the reel core 103 is rotatably attached to the cartridge 101. Transport belt lO4 is pulley 1
06, the swinging arm 105 rotates in the directions of arrows A and B to bring the conveyor bell () 104 into pressure contact with the microfilm F and away from it. Further, the conveyance pulley 110 is rotationally driven in the direction of the arrow mark, and rotates the separation gear 107 in the direction of the arrow mark E via the belt 108. Then, the pinch roller 109
．． 0 and the microfilm F is sandwiched and conveyed.

In the above configuration, the microfilm F is taken out and conveyed as follows. 1. Swing arm 105
is moved in the direction of arrow A, and in movement 5, the rotating conveyor belt 104 is brought into pressure contact with the microfilm F by the pulley 106, and the microfilm F is conveyed by the frictional force of the conveyor belt 104. Then, the leading end of the microfilm F that has been transported to the separation gear 107 is taken out by the leading end of the separation gear IQ7 and fed between the pinch roller 109 and the transport pulley 110. Pinch roller 109 and transport'
Microfilm F sandwiched between feed pulley 110
is carried by both of them and advances into the guide. Furthermore, when the microfilm F is finished being removed, the swinging arm 105 moves in the direction of arrow B, and the conveyor belt 104
is separated from the microfilm F.

(Problems to be Solved by the Invention) However, in such a conventional example, when the microfilm F is taken out, the swinging arm 105 moves around the shaft 106a until the conveyor belt 104 comes into pressure contact with the microfilm F. Therefore, the rotation angle of the swing arm 105 in the direction of arrow A changes depending on the microfilm winding diameter. 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, the rotation angle of the swing arm 105 is small as shown in FIG. The rotation angle of the swing arm 105 is large, so that the tip (leading-out end) of the swing arm 105 enters the winding storage section 101 a in the cartridge 101 .

As a result, the cartridge 1 is
A bag portion 111 is formed between 01 and the swinging arm 105, and the tip of the microfilm is connected to the separation gear 107 and the conveyor bell)
If the microfilm F is transported while being located between the microfilm F and the bag 104, there is a problem in that the leading end of the microfilm F enters the bag portion 111, making transport impossible.

SUMMARY OF THE INVENTION The present invention has been devised to solve the above-mentioned problems of the prior art, and its object is to provide a film conveying device that can reliably lead out the leading edge of a rolled film.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a roll-shaped film stored in a winding storage section in a cartridge, which is wound around a swinging arm. In a film conveyance device that presses and rotates a belt to convey the film to an outlet, the swinging arm is made to protrude in the direction of pressure contact with the film, and when the film is led out, the lead-out end of the swinging arm is always portion is located outside the winding storage portion.

(Function) In the present invention having the above-mentioned configuration, a belt wound around a swinging arm is pressed against and rotated a roll-shaped film stored in a winding storage part in a cartridge, and the film is delivered to an outlet. When transporting the film, the swinging arm is made to protrude to the lead-out end so that the lead-out end of the swing arm is always located outside the winding storage section, thereby ensuring that the leading edge of the film is led out.

(Examples) The present invention will now be described based on illustrated examples. Second
The figure is a perspective view showing the main parts of a microfilm reader to which an embodiment of the '74 film conveying device according to the present invention is applied. 2 is a pinch roller for feeding out the microfilm F in the cartridge 1; Ml is a motor that drives the pinch roller 2; M2 is a roll core 2 in the cartridge 1;
3 (shown in the first diagram); 5OLI is a solenoid that brings the pinch roller 2 into contact with the microfilm F via the support arm 3; 4 is the support arm 3;
Spring 5OL2 that moves the plunger 3a/pinch roller 2 to separate it from the microfilm F.
is a brake solenoid for the film rewinding motor M2. When this brake solenoid 5OL2 is not activated, the motor M2 is rotatable, and when the brake solenoid 5QL2 is activated (turned on), it attracts the brake plate 5 fixed to the motor shaft. to prevent the motor from rotating.

6.7 is a film guide roller, 8 is a take-up reel, M3
5OL3 is a film winding motor for rotating the take-up reel 8, and a brake solenoid for the motor M3. Also, although not shown, the cartridge 1
A guide plate is provided for guiding the film 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 onto a screen (not shown); 17 is a lens for each frame of the microfilm F; This is a known mark detector that detects counting marks m provided on the sides.

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, thereby emitting a mark detection signal, and this mark detection signal is used as a count of the search device. It is counted with a machine.

FIG. 1 is a cross-sectional view of a film lead-out section in an embodiment of the film transport device according to the present invention. In the figure, the microfilm F wound around the reel core 23 is placed in the winding storage section la in the cartridge l. It is rotatably stored. The conveyor belt 24 is rotated by a pulley 26 in the direction of arrow C, and the swing arm 25 is rotated in the directions of arrows A and B, thereby bringing the conveyor belt 24 into pressure contact with the microfilm F and separating it from it. The conveyance pulley 30 is rotationally driven in the direction indicated by the arrow, and rotates the separation gear 27 in the direction indicated by the arrow E via the belt 28. Pinch roller 2 is conveyor pulley 30
At the same time, the microfilm F is held and conveyed.

Further, the swing arm 25 is formed in a substantially triangular shape,
The pressure contact side with the microfilm F is formed protrudingly,
A pulley 33 is attached to this protrusion 25a.

The pulley 26 is driven by a 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 attached to the lead-out end 25b of the microfilm F. A pulley 35 is attached.

In the above configuration, the microfilm F is taken out and conveyed as follows. First, the swinging arm 25 moves in the direction of arrow A and presses the conveyor belt 24 against the microfilm F. At this time, even if the winding diameter of the microfilm F is small and the swinging arm 25 is rotating largely in the direction of arrow A, the protrusion 25a of the swinging arm 25 prevents the lead-out end 25b from entering the winding storage section 1a. Therefore, it is located outside the winding storage section 1a.

Therefore, unlike the conventional example, a bag portion is not formed, and the leading edge of the microfilm F is placed between the conveyor belt 24 and the pulley 2.
Since it is rotating in the direction of arrow C by 6, it is conveyed to the separation gear 27. Then, the tip of the microfilm F is taken out by the teeth of the separation gear 27 rotating in the direction of arrow E, and the microfilm F is pinched and transported by the transport pulley 30 and the pinch roller 2.

Thus, in the embodiment described above, the tip of the microfilm F is not caught in the lead-out end 25b of the swinging arm 25 without forming a bag in the winding storage part 1a in the cartridge l as in the conventional example. disappears.

(Effects of the Invention) The film conveying device according to the present invention has the above-described configuration and operation, and the swinging arm protrudes in the direction of pressure contact with the film. Since it is located outside the winding storage section, the film can be reliably taken out, and it is possible to provide a film conveying device with greatly improved reliability.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a film lead-out section in an embodiment of a film conveying device according to the present invention, FIG. 2 is a perspective view showing the main parts of a microfilm reader to which the same embodiment is applied, and FIG. 3 is a conventional FIG. 4 is a cross-sectional view showing the lead-out portion of the film transport device, 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. Explanation of symbols

Claims (1)

[Claims] In a film conveying device that conveys the film to an outlet by press-contacting and rotating a belt wound around a swinging arm to a roll-shaped film stored in a winding storage section in a cartridge, the swinging arm is rotated. A film conveying device, characterized in that the swinging arm protrudes in the direction of pressure contact with the film, and the leading end of the swinging arm is always located outside the winding storage section when the film is being led out.