JPS6358445A - Film supply guide leader - Google Patents

Abstract

PURPOSE:To prevent an erroneous setting by putting a mark for discrimination at the tip of a film supply guide leader for confirmation at the time of arrangement at fixed intervals. CONSTITUTION:An adhesive tape 20 is used for joining of a film and a leader 10, and the discrimination line 22 of small width is coated at an end of the leader 10 over whole area in axial direction as a discrimination mark. L-shaped holding projections 40 project upward on vertical walls 28, 30, and the end of the leader 10 can be inserted to it. The holding projections 40 are spaced equally with projections 38 and used for positioning in case of fitting the leader 10. Accordingly, plural leaders 10 are housed in the holding projections 40, and by inserting an opening 16 in the projection 38, the leaders 10 are placed on vertical walls 28, 30 at fixed intervals, and the discrimination line 22 at the tip are exposed at fixed intervals. Thereby, an operator can detect the state of fitting of plural leaders 10 accurately, and erroneous setting can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a film supply guide leader for feeding film after photographing to a developing device.

[Background Art] A photographed film is stored in a cartridge, and it is necessary to pull it out from the cartridge and send it to a developing device.

For this reason, conventionally, one end of the film protrudes from the tip of the cartridge, a leader is attached to this tip, the leader is sent into the developing device, the leader pulls the film into the developing device, and the developing device performs development while being guided. is used.

In addition, by storing a large number of films in a cartridge with this leader attached in a magazine, having the leaders protrude from the magazine at regular intervals, and connecting this magazine to a developing device, the leader guides the films one by one to the developing device. An automatic feeding device has also been proposed (patent application 1986-
No. 90382), it is possible to automatically supply films by simply storing a large number of films in a magazine and setting them in a developing device.

However, when attaching a film with a leader to this magazine, since the leader is thin, a plurality of leaders may be mistakenly placed one on top of the other, and detection in this case is also difficult.

The present invention has been made in consideration of the above facts, and an object of the present invention is to obtain a film supply guide leader that can reliably arrange the leading ends of the leaders at regular intervals in the magazine even when a large number of leaders are set in the magazine. be.

[Summary and operation of the invention] The present invention is a film supply guide leader attached to the leading end of a film protruding from a cartridge housed in a magazine at regular intervals to guide the film to a developing device. A distinctive feature is that an identification mark is placed on the tip for confirmation when arranging them at regular intervals.

Therefore, in the present invention, when the leaders each having a film attached thereto are set in the magazine, the overlapping state and storage state of the leaders can be clearly seen by confirming that the identification marks on the tips are arranged at regular intervals. The set is canceled.

[Embodiment of the Invention] In FIG.
The state in which it is attached to the tip of the film 14 protruding from is shown. The base end of the film 14 is the cartridge 12
It is locked to the inner winding core 12A. The leader 10 is made of a thin sheet material such as synthetic resin, and has a plurality of openings 16 formed along its longitudinal direction.

The film 14 and the reader IO are bonded using adhesive tape 2.
0 is used. Further, on the other end of the reader 10, a narrow identification line 22 as an identification mark is applied over the entire width direction.

FIG. 2 shows the reader 10 and film 14 housed in a magazine 24. As shown in FIG.

This magazine 24 is box-shaped, and when the M2S, which can be opened and closed at the upper end, is closed, the inside becomes light-shielded.

Inside the magazine 24, there is a pair of vertical walls 28.3 at the center in the width direction.
0 is formed over the entire longitudinal direction. The space between these vertical walls 28, 30 and the magazine side walls 32, 34 is a space for accommodating the cartridge 12, respectively.

An endless belt 36 is wound between the vertical walls 28 and 30, and projections 38 protruding from the outer periphery of the endless belt 36 at regular intervals engage with the opening 16 of the leader 10, and the leader 1
0 can be sent out from the magazine 24. The spacing between these protrusions 38 is three times the spacing between the openings 16, so that when the third opening 16 from the end of the leader 10 is inserted into this protrusion 38, the protrusions 38
One reader 10 is attached at every interval.

An L-shaped locking projection 40 projects upward from the vertical wall 28, 30, into which the end of the leader 10 can be inserted. The spacing between the locking protrusions 40 is the same as the spacing between the protrusions 38, and is used for positioning when the reader 10 is attached.

Therefore, as shown in FIG.
are respectively accommodated in the locking protrusions 40, and the openings 16
If the leader 10 is inserted into the protrusion 38, the leader 10 will move against the vertical wall 2 at regular intervals.
8 and 30, and the identification lines 22 at the tip are exposed at regular intervals, allowing the operator to accurately detect the state in which a plurality of readers 10 are attached.

A rotating shaft 44 is fixed to a sprocket foil (not shown) around which a portion of the endless belt 36 is wound. A pinion 46 is fixed to the end of this rotating shaft 44, and a rank 4
It corresponds to 8. This rack 48 is a bush rod 5
connected to 0. This bushing rod 50 corresponds to a drive lever 54 when the magazine 24 is connected to the developing device 52 as shown in FIG.

This drive lever 54 has one end pivotally supported by a pin 56, and is reciprocated by the rotation of a cam 58, thereby reciprocating the rack 48 and reciprocating the pinion 46 by a constant rotation. A one-way rotation clutch (not shown) is interposed between the rotating shaft 44 and a sprocket foil around which the endless belt 36 is wound so that this reciprocating rotation acts as a fixed amount of feeding force in one direction to the endless belt 36. ing.

The magazine 24 has an opening/closing lid 60 attached to one end in the longitudinal direction, and is normally closed by the biasing force of a spring 62, but when the cartridge 12 is taken out from the magazine 24, the inside of the magazine 24 is opened. It looks like this.

As shown in FIG. 4, in the developing device M52, an endless belt 64 is wound around the leading end of the leader 10 that is fed. This endless belt 64 has protrusions 66 protruding at regular intervals to engage with the openings 16 of the leader lO. Therefore, when the leader 10 is inserted into the developing device 52,
The rotating endless belt 64 engages with the opening 16 through a protrusion 66 so that the leader 10 can be fed into the developer tank 68.

A movable plate 69 is disposed adjacent to the endless belt 64, and serves as a contact when the cartridge 12 is pulled out from the magazine 24 due to an increase in the tension of the film 14. The movable plate 69 is biased leftward in FIG. 4 by an unillustrated elastic body biasing force, but when the cartridge 12 comes into contact with it and moves to the right, this is detected by the limit switch 70 and the cutter 72 is activated. The end of the film 14 is cut.

The film supply function using this embodiment will be explained.

As shown in FIG. 3, a plurality of leaders 10 connected to the film 14 with tape 20 are prepared in advance, and these are attached to the magazine 24 at regular intervals. In this case reader 1
0, it is only necessary to sequentially contact the left end thereof with the locking protrusion 40 starting from the frontmost part (right direction in FIG. If they are placed at different intervals or at different intervals, this can be quickly detected and corrected.

If the distance between the locking protrusion 40 and the top surface of the standing wall 28 is set to a size that allows only one leader lO to fit therein, it is possible to reliably prevent two leaders 10 from stacking up.

When the magazine 24 with the lid 26 closed is connected to the developing device M52, the drive lever 54 of the developing device 52 is reciprocated, and the endless belt 36 inside the magazine 24 sends out all the leaders IO by a certain amount toward the developing device 52. , this is the developing device! The endless belt 64 of 52 draws the foremost leader 10 into the developing device 52 through its opening 16, whereby the film 14 following the leader IO is immersed into the developing tank 68 and the developing operation proceeds.

When all the films 14 in the frontmost cartridge 12 are pulled out, the tail of the film 14 is connected to the core 12A of the cartridge 12, so the cartridge 12 is pulled out from the magazine 24 by the tension of the film 14. As a result, the moving plate 69 moves, and the developing device! Limit switch 70 in film 152 detects this, and cutter 72 cuts the end of film 14. For this reason Patrone 12
is discharged by falling naturally.

At this point, when the drive lever 54 rotates the pinion 46 again, the next leader lO at the front is pushed out and the developing device is moved in the same way as last time! The developer tank 68 is guided by an endless belt 64 within the developer tank 152 .

In this way, from the front reader 10 to the developing device 52
All films 14 are automatically developed.

In the above embodiment, the identification &
Reference numeral 122 is a straight line formed across the entire width of the reader 10, but this identification mark does not necessarily have to be linear, and may be formed intermittently, such as in dots, or provided in a part of the width. There may be.

[Effects of the Invention] As explained above, the present invention provides a film supply guide leader that is attached to the tip of a film protruding from a cartridge stored in a magazine at regular intervals to guide the film to a developing device. This feature is characterized in that an identification mark is provided on the leading end for confirmation when the readers are arranged at regular intervals, and therefore has an excellent effect of being able to reliably arrange the leaders at regular intervals within the magazine.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of a reader to which the present invention is applied, Fig. 2 is a perspective view showing a state in which the reader is attached to a magazine, and Fig. 3 is a perspective view showing a state in which a plurality of readers are attached one on top of the other. FIG. 4 is a perspective view showing the state, and FIG. 4 is a sectional side view showing the state in which the magazine is connected to the developing device. 10--Reader, 12... Patrone, 14... Film. 16...Opening. 22...φ identification line, 24... Magazine, 52... Developing device.

Claims (1)

[Claims] (1) A film supply guide leader that is attached to the leading edge of the film that protrudes from the cartridge stored in the magazine at regular intervals to guide the film to the developing device, and has an identification mark on the leading edge. Reader for film supply guide used to confirm when arranging film at regular intervals.