JPH09230572A - Light shielding magazine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily pull out the tongue of film before developing the film by using a darkroom box inside which a film cartridge is loaded and which has a cover. SOLUTION: In a state where the cartridge 100 is loaded in the darkroom box 1, the cover 3 is closed to shield the darkroom box 1 from light. By rotating a door opening/closing lever 19 by a specified angle, a door gage 18 is rotated by the specified angle, as a result, the light shielding door 103 of the cartridge 100 is opened, so that the leading edge(tongue) of the film is ready to be extended. Thereafter, by rotating a knob 9, a 1st spool gage 5 is rotated through 1st to 3rd gears 12 to 14. As a result, the key-like spool gage 5 is fit in the key groove of a spool, the spool of the cartridge 100 is kept rotating, and the tongue of the film is ejected from the door 103. Even when the leading edge of the film is pulled out from the cartridge, the light shielding performance in the cartridge is not lost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding magazine applied to a novel film cartridge.

[0002]

2. Description of the Related Art Recently, a new film cartridge has been proposed as shown in FIG. This cartridge 1
00 is thinner than the conventional film cartridge, and the tongue portion of the film is completely stored in the shell 101 without going out. Such a cartridge 10
At the center of 0, there is a spool 102 capable of unwinding and winding the film, and at the end of the cartridge 100, the door shaft 1 capable of taking in and out the film in the shell 101.
A shading door 103 having 04 is provided. Furthermore,
A magnetic material is applied to one side surface of the film so that magnetic information can be recorded. Examples of this cartridge 100 are disclosed in Japanese Patent Laid-Open No. 7-199329, Japanese Patent Laid-Open No. 7-219024, and the like.

[0003]

In such a cartridge 100, the light-shielding door 10 is used for feeding the film.
When 3 is opened, the light shielding property inside the cartridge 100 is lost from there, and the film inside is exposed. Therefore, there is an inconvenience that the light-shielding door 103 has to be opened in the dark room and the tongue of the film has to be exposed. Further, the cartridge itself cannot be moved to the developing place or the developing device while the tongue of the film is taken out from the cartridge 100.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a light-shielding magazine which makes it easy to release the tongue before developing the film.

[0005]

In order to achieve the above-mentioned object, the invention of claim 1 accommodates a film cartridge in a light-shielding magazine for pulling out the leading end of the film from a light-shielding door provided in the film cartridge and stores the film cartridge. A dark room box with a lid for loading inside, and a pair of spool gauges that are provided in the dark room box and that fit into a spool provided in the film cartridge to hold the film cartridge,
It is installed in the dark room box, and is installed in the spool operation part that rotates the spool gauge, and in the dark room box, and at the position corresponding to the position of the light shielding door when the film cartridge is held by the spool gauge. A film delivery roller for ejecting the film out of the box, a dark mechanism box, a synchronization mechanism for synchronizing the rotation of the spool gauge and the rotation axis of the film delivery roller, a dark mechanism box, and a film cartridge. A door gauge fitted to the door shaft of the light-shielding door and a door operation unit provided in the darkroom box and rotating the door gauge are provided.

According to the above construction, when the film cartridge is loaded into the light-shielding magazine, after opening the lid of the darkroom box, the film cartridge is sandwiched by the pair of left and right spool gauges, and each spool gauge is fitted onto the spool of the film cartridge. To combine. After that, with the film cartridge loaded in the dark room box,
Close the lid to shield the dark box from light.

In this state, by rotating the door operation part, the door gauge in the darkroom box rotates, and as a result,
The light-shielding door of the film cartridge opens, and the front end of the film (velo) is ready for feeding. After that, by rotating the spool operating portion, the key groove provided on the spool of the film cartridge and the spool gauge are fitted, and the spool continues to rotate, so that the tongue of the film is ejected from the light shielding door. At this time, since the film feeding roller also rotates in synchronization with the spool gauge, the tongue of the film is pinched by the film feeding roller,
It is forcibly discharged outside the darkroom box. In this way, the state in which the tongue of the film is ejected from the film cartridge can be maintained, and the film is not exposed even in a place where there is light.

In this case, it is preferable to urge one of the pair of spool gauges with a spring.

According to the above construction, when the film cartridge is loaded in the dark room box, the spool gauges can be pushed open by the spring, so that the film cartridge can be loaded easily. Since the film cartridge can be reliably sandwiched between the spool gauges, the spool gauge and the spool of the film cartridge can be securely fitted, and the film cartridge can be reliably held in the darkroom box.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the light-shielding magazine of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a front view showing the internal structure of the light-shielding magazine, FIG. 2 is a left side view of FIG. 1, FIG. 3 is a plan view of FIG.
FIG. 2 is a right side view of FIG. As shown in these drawings, the light-shielding magazine of the present invention is provided with a dark room box 1 for blocking light from the outside, and a lid 3 rotatably supported by a shaft pin 2 is provided above the dark room box 1. Have Then, in the dark room box 1, a door-stop portion where the lid 3 hits is provided with a light-shielding seal (not shown). Therefore, by closing the lid 2, the inside of the dark room box 1 can be completely darkened. Although not shown, the darkroom box 1 is provided with a mechanism for locking the closure of the lid 3.

Furthermore, in the dark room box 1, the film cartridge shown in FIG.
A frame portion 4 for holding 100 is provided, and the frame portion 4 is fixed to the inner wall surface of the darkroom box 1. Further, a key-shaped first spool gauge 5 to be inserted from one side of the spool 102 of the cartridge 100 is rotatably mounted on one side wall of the frame portion 4. The first spool gauge 5 is formed in an elongated plate shape so as to fit in the key groove 105 of the spool 102.

A lower end of a plate spring 7 is fixed to the other side wall of the frame portion 4, and a plate-shaped cartridge set lever 6 is fixed to an upper end of the plate spring 7. On the inner wall surface of this cartridge set lever 6, the spool 1
The second spool gauge 8 to be inserted from the other side of 02 is fixed. Therefore, by pushing the upper end of the cartridge set lever 6 outward with a finger, the space between the spool gauges 5 and 8 can be pushed open via the leaf spring 7. In this way, since the leaf spring 7 can be used to push open between the spool gauges 5 and 8, the film cartridge 100 can be extremely easily loaded. Furthermore, since the film cartridge 100 can be reliably sandwiched between the spool gauges 5 and 8, the spool gauges 5 and 8 and the spool 102 of the cartridge 100 can be securely fitted to each other, and the cartridge 100 can be stored in the dark room box 1. It can be held securely.

The dark room box 1 described above is provided with a knob 9 as a spool operating portion which projects to the outside.
The rotary shaft 10 of the knob 9 penetrates the dark room box 1 and is axially supported by the frame portion 4 or the dark room box 1 at the same time. In addition, the rotary shaft 11 of the first spool gauge 5 is
The rotation shaft 10 of the knob 9 is pivotally supported by the frame portion 4.
Are arranged parallel to and close to.

A first gear 12 is fixed to the rotary shaft 10 of the knob 9, and the rotary shaft 11 of the first spool gauge 5 is fixed.
The second gear 13 is fixed to the first gear 12 and the second gear 13.
A third gear 14 is provided between the third gear 14 and the gear 13. Then, by turning the knob 9 with a finger, the first to third
The first spool gauge 5 can be rotated via the gear train of the gears 12, 13, and 14.

Further, the third gear 14 has a frame portion 4
A rotary shaft 15 is formed that is longer than the entire length of the rotary shaft 15 and extends from one end to the other end in the darkroom box 1. A third gear 14 is fixed to one end of the rotary shaft 15 and the other end thereof is provided. A fourth gear 16 is fixed to the. Therefore, the third gear 14 is rotated by turning the knob 9, and the rotational force of the knob 9 can be transmitted to the fourth gear 16 via the rotation shaft 15 of the third gear 14. Further, the fourth gear 16 has a film feeding roller 21 which will be described later.
The fifth gear 17 for rotating the rotary shaft 22 of is meshed with.

Here, the frame portion 4 is provided with a door gauge 18 which is projected inward for fitting with the door shaft 104 of the cartridge 100. A lower end of a door opening / closing lever 19 as a door operating portion protruding outward from the lid 3 is fixed to the door gauge 18. The upper end of the door opening / closing lever 19 projects to the outside through a slit opening 20 formed in the lid 3. Therefore, the door gauge 18 can be rotated (swinged) by a predetermined angle by rotating (swinging) the door opening / closing lever 19 by a predetermined angle with the lid 3 closed. Therefore, after the door gauge 18 is fitted to the door shaft 104 of the cartridge 100, the light-shielding door 103 of the cartridge 100 can be opened and closed by rotating the door lever 19 by a predetermined angle.

The opening edge of the slit opening 20 is
By operating the door opening / closing lever 19, the dark room box 1
Light-shielding sticker (not shown) to prevent light from entering inside
Is given. Although not shown, the door gauge 18
When the rotary shaft of No. 1 is extended to the outside of the darkroom box 1 and the lower end of the door opening / closing lever 19 is fixed to the tip of this rotary shaft, the slit opening 20 described above is not necessary.

Further, in the dark room box 1, the tip (velo) A of the film in the cartridge 100 is placed in the dark room box 1.
Film feeding roller 2 for forcibly discharging to the outside
1 is fixed. This film feeding roller 21
Is composed of a pair of upper and lower rollers and is provided at a position corresponding to the position of the light shielding door 103 when the film cartridge 100 is held by the spool gauges 5 and 8.

The lower roller 21a of the film feeding roller 21 is provided with a rotary shaft 22 pivotally supported by the dark room box 1, and the upper roller 21b is a free roller. Then, at one end of the rotary shaft 22, the fourth
A fifth gear 17 meshing with the gear 16 of is fixed. Therefore, by rotating the knob 9, the lower roller 21a can be rotated through the synchronization mechanism portion 23 including the gear train of the first to fifth gears 12 to 14 and 16, 17. Further, the dark room box 1 has a slit-shaped film discharge port 2 facing the film feeding roller 21.
4 are formed.

A light-shielding seal (not shown) is provided at the opening edge of the film discharge port 24 so as to prevent light from entering the dark room box 1 due to discharge of the tip (velo) A of the film (not shown). Has been applied. Although not shown, the film feeding roller 21 may be arranged at the position of the film discharge port 24. In this case, it goes without saying that a light-shielding seal (not shown) is provided.

Next, the operation of the light-shielding magazine will be described based on the structure of the light-shielding magazine.

First, the light-shielding magazine is loaded with the cartridge 100.
When loading the cartridge, the lid 3 of the darkroom box 1 is opened, and then the upper end of the cartridge set lever 6 is pushed outward with a finger against the spring force of the leaf spring 7 to pull the spool gauges 5, 8
The spool gauges 5 and 8 are fitted onto the spool 102 of the cartridge 100 while pushing open the spaces. afterwards,
With the cartridge 100 still loaded in the dark room box 1, the lid 3 is closed to shield the dark room box 1 from light.

In this state, by rotating (swinging) the door opening / closing lever 19 by a predetermined angle, the door gauge 18
Rotates (swings) by a predetermined angle, and as a result, the light-shielding door 103 of the cartridge 100 opens, and the film front end (velo) A is ready for feeding. After that, by rotating the knob 9, the first spool gauge 5 rotates via the first to third gears 12 to 14. As a result, the key-shaped first spool gauge 5 is fitted into the key groove 105 of the spool 102, so that the spool 102 of the cartridge 100 continues to rotate and the velor A of the film is discharged from the light shielding door 103.

At this time, since the fourth and fifth gears 16 and 17 also continue to rotate, the film feeding roller 21 also continues to rotate. As a result, the tongue A of the film discharged from the light shielding door 103 is forcibly discharged from the dark room box 1 through the film discharge port 24 while being sandwiched by the film feeding roller 21. Then, when the tongue A of the film is ejected from the film discharge port 24 by about 2 cm, the rotation operation of the knob 9 is stopped and the film ejection operation is finished. In this way, the state in which the tongue A of the film is ejected from the cartridge 100 can be maintained, and the film is not exposed even in a place where there is light.

[0026]

Since the light-shielding magazine according to the present invention is constructed as described above, the following effects can be obtained.

That is, a dark room box having a lid for accommodating a film cartridge and loading the film cartridge therein, a pair of spool gauges fitted to the spool of the film cartridge to hold the film cartridge, and a spool gauge are rotated. Provided on the film cartridge, a spool operating section for controlling, a film feeding roller for discharging the leading edge of the film from the light-shielding door to the outside of the darkroom box, a synchronizing mechanism section for synchronizing the rotation of the spool gauge and the rotation axis of the film feeding roller. By providing a door gauge that fits the door shaft of the light-shielding door and a door operation unit that rotates the door gauge, even when the leading edge of the film is taken out of the cartridge with the light-shielding door of the cartridge open, Does not lose its light blocking effect , Never inside a film is sensitive. Further, the cartridge itself can be moved to the developing place or the developing device while the tongue of the film is taken out from the cartridge. Then, the work of projecting the tongue before developing the film becomes extremely easy.

[Brief description of drawings]

FIG. 1 is a front view showing the internal structure of an embodiment of a light-shielding magazine of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is a right side view of FIG.

FIG. 5 is a perspective view showing the appearance of an APS film cartridge.

[Explanation of symbols]

1 ... Dark room box, 3 ... Lid, 5, 8 ... Spool gauge,
7 ... Leaf spring (spring), 9 ... Spool operating portion (knob), 1
8 ... Door gauge, 19 ... Door operating part (door opening / closing lever), 21 ... Film feeding roller, 22 ... Rotating shaft, 2
3 ... Synchronous mechanism part, 100 ... Film cartridge, 10
2 ... spool, 103 ... shading door, 104 ... door shaft.

Claims (2)

[Claims] 1. A light-shielding magazine for pulling out a front end of a film from a light-shielding door provided in a film cartridge, a dark room box having a lid for accommodating the film cartridge and loading the film cartridge therein, and the dark room. A pair of spool gauges provided in the box and fitted to a spool provided in the film cartridge to hold the film cartridge; and a spool operation unit provided in the dark room box and rotating the spool gauge. Provided in the dark room box, provided at a position corresponding to the position of the light-shielding door when holding the film cartridge by the spool gauge, a film delivery roller for discharging the film out of the dark room box, Before A synchronization mechanism unit provided in the dark room box and for synchronizing the rotation of the spool gauge and the rotation axis of the film feeding roller, and a door of the light shielding door provided in the dark room box and provided in the film cartridge. A light-shielding magazine, comprising: a door gauge fitted to a shaft; and a door operation unit provided in the darkroom box and rotating the door gauge. 2. The light-shielding magazine according to claim 1, wherein one of the pair of spool gauges is biased by a spring.