JPH026437Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a film carrier in which a film cartridge containing a wound roll film is mounted and the roll film is loaded in a projectable state.

BACKGROUND ART Conventionally, readers and reader printers have generally been equipped with a film carrier to which a film cartridge having a roll film wound thereon can be attached.

However, with conventional film carriers, loading is started by operating a switch after the film cartridge is installed, so it takes a long time from the time the cartridge is installed until the film can be searched, resulting in poor operability. It was bad. In addition, the state in which the film cartridge is installed is not stable, and if the outer frame of the cartridge is touched while searching for film, problems such as the reel touching the outer frame or the film touching the outer frame may occur. , there was a risk of damage to the film cartridge and film.

Purpose The present invention was developed in view of the above points. Loading starts at the same time as the film cartridge is installed, the outer frame of the film cartridge is locked, and the film cartridge starts loading at the same time as the film winding is completed. The purpose is to provide a film carrier from which the carrier can be removed.

Embodiment FIG. 1 shows a schematic configuration of a film carrier according to the present invention in a state in which a film cartridge is attached. Reference numeral 1 designates a main body frame, and at one end of the horizontal surface 1a, a rail 3 for holding a film cartridge 2 is provided. It is formed. Reference numeral 4 denotes a lever lever for fixing the film cartridge 2;
It is rotatably supported by a torsion spring 6 and biased clockwise by a torsion spring 6.
This torsion spring 6 is latched to a first latching pin 7 provided on the foot lever 4 and a second latching pin 8 provided on the horizontal surface 1a of the frame 1. A locking pawl 9 that fits into a hole 2d formed in the outer frame 2a of the film cartridge 2 and a notch 10 for locking a set pin 18, which will be described later, are formed on one side of the support shaft 5 of the lever 4. A release lever 12 connected to the first solenoid 11 is connected to the other end by a shaft 13. Further, as a means for detecting the position of the foot lever 4, a micro switch 14 is provided on the horizontal surface 1a near the end thereof.

On the other hand, a set lever 17 is provided on the vertical surface 1b of the main body frame 1 and is movable in the horizontal direction by means of a guide pin 15 and a guide hole 16.
The set lever 17 has a set pin 18 that fits into a notch 10 formed in the foot lever 4.
, and a protrusion 19 formed at one end.
A coil spring 21 is provided between the pin 20 and the vertical surface 1b, and is biased toward the left in the figure, that is, toward the film cartridge 2.

A drive shaft 22 for driving the reel 2b of the film cartridge 2 is connected to a second solenoid 23 and also to a drive source (not shown). Further, 24 is a loading roller, which is connected to a drive source (not shown) via a drive shaft 25.

The film carrier according to the present invention has the above-mentioned structure, and when the film cartridge 2 is installed as shown by the solid line in FIG.
The coil spring 21
It is reliably hooked by the force of the set lever 17, which is biased by the set lever 17, to push it back in the direction of the arrow. In addition, a drive shaft 2 is provided in the shaft hole 2c of the reel 2b.
2 is inserted. Therefore, at this time, the outer frame 2a
Even if the outer frame 2a and reel 2
It does not come into contact with b or the wound roll film.

When removing the film cartridge 2 from the above-mentioned installed state, turn off the second solenoid 23, pull out the drive shaft 22 from the shaft hole 2c of the film cartridge 2, and then turn on the first solenoid 11 to move the foot lever 4 into the supporting shaft. 5 in a counterclockwise direction to release the locking of the film cartridge by the locking pawl 9. Along with this release operation, the set pin 18 that had been fitted into the notch 10
is released, and the set lever 17, which is biased by the coil spring 21, moves in the direction of the arrow while being guided by the guide pin 15 provided in the guide hole 16, and the film cartridge 2
is pushed out along the rail 3 of the film carrier in the direction of the arrow, and the film cartridge 2 and the film carrier are in the state shown by the two-dot chain line in the figure.

The film carrier is controlled according to the control block diagram shown in FIG. Specifically, in the state shown by the two-dot chain line in FIG. 1 when the film cartridge 2 is not attached, the micro switch 14 is turned off by the lever 4. When the film cartridge 2 is inserted from this state along the rail 3 in the direction opposite to the direction of the arrow, the outer frame 2a of the film cartridge 2 comes into contact with one end of the set lever 17 and resists the bias of the coil spring 21. When pushed in further, the lock pin 18 fits into the notch 10 of the hook lever 4. Along with this, the foot lever 4 rotates clockwise around the support shaft 5 due to the bias of the torsion spring 6, and the engaging pawl 9 locks the outer frame 2a of the film cartridge 2. micro switch 14
Turn on.

When the micro switch 14 is turned on, a trigger pulse is emitted from the one-shot multivibrator (O/S ₁ ) in the control block diagram, the flip-flop (F/F) is set, and the second solenoid 23 is turned on to turn on the drive shaft. 22 is fitted into the shaft hole 2c of the film cartridge 2, and at the same time, the drive shaft 22 and the drive shaft 25 of the loading roller 24 are inserted into the shaft hole 2c of the film cartridge 2.
is driven, and the roll film in the film cartridge 2 is autoloaded, making it ready for projection.

On the other hand, when a film winding end signal is input by a switch means (not shown), a trigger pulse is emitted from the one-shot multivibrator (O/S ₂ ), the flip-flop (F/F) is reset, and the second solenoid 23 is turned off, the drive shaft 22 is pulled out from the shaft hole 2c of the film cartridge 2, and at the same time, the first solenoid 11 is turned off.
When turned ON, the lock lever 4 is rotated to release the locking by the locking pawl 9, and the set lever 17 pushes the film cartridge 2 out of the film carrier along the rail 3 in the direction of the arrow.

Effects As described above, in the film carrier according to the present invention, loading is started at the same time as the film cartridge is attached, the outer frame of the film cartridge is locked, and the film cartridge is removed at the same time as the film winding is completed. As a result, the operations from attaching the film cartridge to loading the film cartridge for retrieval, and from winding to removing the film cartridge, are extremely simplified and quick. Even if the cartridge comes into contact with the outer frame when the cartridge is installed, the outer frame does not come into contact with the reel or the film, and the film and the film cartridge are not damaged.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a state in which a film cartridge is attached to a film carrier according to the present invention;
FIG. 2 is a control block diagram showing the control of the film carrier. 2... Film cartridge, 4... Foot lever, 6... Torsion spring, 9... Locking claw, 10... Notch, 11... First solenoid, 14... Micro switch, 17... Set lever, 18... Set pin, 21... Coil spring, 22... Drive shaft, 23... Second solenoid.

Claims (1)

[Scope of Claim for Utility Model Registration] A film carrier that holds a film cartridge containing a rolled film in a ready state for loading, which comprises: a biasing means that constantly biases the film cartridge in the direction of removal; a lever that is movable between a locking position that locks the outer frame and a locking release position when the outer frame is locked, and that is always biased toward the locking position; and that this lever moves to the locking position. a detection means for detecting attachment of the film cartridge by detecting the attachment of the film cartridge; a drive means for loading the roll film when attachment of the film cartridge is detected by the detection means; and a drive means for moving the lever to a locking position. What is claimed is: 1. A film carrier comprising: a release means for moving the film carrier from the latching position to a release position; and a signal generation means for generating a signal for activating the release means.