JPS5924410B2 - Method and device for drawing out film from a patrone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is particularly directed to a method for pulling out a film that has been caught up in the front end of an exposed film, etc. in a batrone, to the film outlet of the cartridge again. The purpose of this improvement is to remove the back end of the film that has been rewound into the cassette cartridge very easily and quickly without causing any damage to the cassette. To provide a method and device for pulling out a film from a cartridge which can be pulled out to a drawer opening and which not only has excellent workability but also has a significant influence on the organization and maintenance of the workplace environment.

When rewinding a film using a 35 millimeter camera, we often end up rewinding the front end of the film back into the cartridge.

When developing such a film, the cartridge cap on the side of the cartridge is removed, the front part is pulled back to the film outlet of the cartridge, and the film is exposed through the film outlet. After restoring the cartridge to its original state, you can start the developing process, or you can remove one cartridge cap from the batrone and take out the exposed film from the batrone and process it, or you can process two sheets. Insert the thin film holding plate and the piece with claws that fit into the perforation of the film from the film outlet of the Barone [Rotate the spool,
Relying on one's senses, the tongue part was held in place, or the perforation was hooked with a fingernail, and the front part was pulled out and sent to the next stage of processing. Therefore, no matter which method is used, the operation is extremely complicated, takes a relatively long time, and is not only a work surface, but also requires cleaning up if the cartridge is damaged. There are quite a few problems, and improvement of these problems has become an urgent need in this type of industry due to the increasing demand for photographic film and the recent rise in labor costs. In view of the above-mentioned current situation, the present invention has been made to
As a result of this improvement, we used a thin guide plate to guide the front edge of the film and used compressed gas to move the front edge of the film that had been rewound into the cartridge into the cartridge. We have now developed a method and device that can be pulled out to the outlet extremely easily and quickly and fully meet the needs of this type of industry.

In the following, the invention will be explained in detail with reference to a film from a cartridge as shown in the drawings, in particular a machine for drawing out the sides of the film, in which the method of the invention has been carried out. In the figure, first P
is a publicly known cartridge, which mainly consists of a cartridge body 1 having a film outlet 5 formed therein, cartridge caps 2, 2' on both sides thereof, and a spool 6, and 3 and y are the cartridge body 1. and the engaging parts 4, 4' of the cartridge caps 2, 7, and the cartridge caps 2, 7,
7 is a spool bearing part, 7 and 7' are flanges provided on the spool 6, and 8 is a part provided on one shaft end of the spool 6 that engages with the winding shaft on the camera side. These are the parts to which power is transmitted, F is the film whose inner end is fixed to the spool 6, F' is the front part thereof, and G is the thin film guide plate inserted into the film outlet 5. It is. Next, B is a machine base, and on this machine base B, the cartridge P is held between both sides, and gas such as compressed air is supplied to the spool bearing portions 4, 4' of both cartridge caps 2, 2' of the cartridge P. Patrone clamping bodies A and A' are arranged opposite to each other for press-fitting the cartridge through a small gap between the cartridge and the spool 6. In this embodiment, one cartridge clamping machine A is fixed, and the other cartridge clamping machine A' is guided by the guide groove 21 provided in the machine base B. A
When the cartridge P is securely held, it can be held at a predetermined position by a click stop device 22. The opposing surfaces of the machine frames 10 and 10', which form the main bodies of both cartridge holding bodies A and A', have concentric recesses 11 and 1V into which the end of the spool 6 of the cartridge P is inserted; Backing 1 in airtight contact with cartridge caps 2 and 2' of cartridge P
4, 14', and a concentric annular projecting wall 12 for guiding the inner peripheral surface of the engaging portions 3, 3' in the cartridge P.
12' is formed in the upper wall part, and the recessed part 11,
In order to send compressed air into 1V, compressed gas transfer pipe 1
Compressed gas introduction holes 15, 15' are provided with attachment tools 16, 16' attached to them. Spool rotation shaft 18 with a handle 20 with matching shaft center
is attached, and the spool 6 is rotated by its tip shaft portion 19. When drawing out the front part F' of the film F from the cartridge configured as described above, in particular, the front part F' of the film F using the film front part drawer, first, one of the cartridge holding machines A is The other cartridge clamping machine A' is moved along the guide groove 21 provided on the machine base B, and the cartridge is moved away from the machine A' by the spool rotating shaft 18 with a handle 20 on the side of the cartridge clamping machine A. By rotatably pressing the spool 6 of P, the other cartridge holding device A' is moved in the opposite direction to the previous one and fixed, and the cartridge caps 2, 2' are fixed.
The backing 14 allows compressed gas to be introduced through a slight gap between the spool bearings 4, 4' and the spool 6.
14' is brought into airtight contact with the cartridge caps 2, 2', and the cartridge P is clamped and supported as shown in FIG.

Next, as shown in FIG. 2a, a thin film guide plate G is inserted into the cartridge P through the film outlet 5, and as shown in FIG. 2b, the compressed gas introduction hole 1
5, 15' into the recesses 11, 1V, and while blowing the compressed gas into the cartridge P, the second
After rotating the spool 6 in the direction of winding the film F using the spool rotation shaft 18 with handle 20 as shown in C of the figure, the handle 2 is rotated as shown in D of FIG.
Rotate the zero-attached spool rotation shaft 18 in the opposite direction.

Then, as the spool 6 rotates, the leading edge of the film F, whose degree of winding has been reduced by blowing compressed gas into the cartridge P, moves along the back surface of the film guide plate G to the film outlet. 5, the film F can be pulled out by gently pulling out the film guide plate G.

At this time, if the surface of the film guide plate G that the tip of the bevel part F' comes into contact with has a large coefficient of friction,
The bottom part can be easily pulled out. As is clear from the above description, the method of drawing out a film from a cartridge according to the present invention skillfully utilizes the slight gap between the spool 6 in the cartridge P and the bearings of the cartridge caps 2 and 2'. By blowing gas such as compressed air into the cartridge P, and rotating the spool 6 in the direction in which the film F is wound, and then in the opposite direction, the front end portion F' of the film F is wound as much as possible. It is moved away from the inner part and along the inner peripheral surface of the cartridge P so that it can be easily moved and guided along the thin plate guide plate that was previously inserted into the cartridge P through the film outlet 5. By making it easier to remove the film from the film drawer port 5, the film F can be removed very easily and quickly without requiring a great deal of skill and without causing any damage to the cartridge P itself. The front portion P is exposed to the film outlet 5 of the cartridge P, and can be directly developed, which greatly simplifies the organization and maintenance of the work environment. In addition, in the case of a drawing machine that carries out the above-mentioned film drawing method and brings out the film F1, especially its front part F', to the film drawing port 5 of the cartridge P,
Patrone P can be clamped by a simple operation of simply moving either cartridge clamping machine A or cartridge clamping machine A' towards and away from the other machine, and the clamping can be carried out inside the cartridge P. Since the highly elastic backings 14 and 14' are used to maintain airtightness when exposed to compressed gas, the cartridge P will not be damaged in any way, and after the cartridge P is attached in this way, Since it is sufficient to simply switch the valve and rotate the spool rotation shaft 18 with the handle 20 using the handle 20 at any desired rotation speed, the method of drawing out the film from the cartridge according to the present invention is carried out. It can be said that it is the best device for this purpose.

Therefore, the method of drawing out film from a cartridge according to the present invention and the film drawing machine from a cartridge that implements this film drawing method are a cartridge that can fully meet the urgent needs of this type of photography industry. This can be said to have provided a method and device for pulling out film from a .

[Brief explanation of the drawing]

In order to explain the method and apparatus for drawing out a film from a cartridge according to the present invention, the drawings show a drawing showing a front portion of the film, especially a front portion of the film, from a cartridge according to the present invention for carrying out the method for pulling out a film from a cartridge according to the present invention. Fig. 1 is a front view with some of the necessary parts cut away to show the structure of the machine, and Fig. 2 is a schematic diagram showing the sequence of drawing out the front part. P: Patrone, 1... Patrone main body, 2
,2'-...Patrone cap,3,3'-...
...Attachment part, 4,4'-...Spool bearing part, 5...Film outlet, 6...Spool, 7,7t... Flange, 8...Engaging part, F-...Film, F'-...Beginning part, G: Film guide plate, B: Machine base, A, A': Patrone clamping machine, 10,10t...machine frame, 1
1,1V... recessed part, 12,12'-...
・Annular projecting wall, 13, 13t...Annular projecting wall, 14,
14'-...Backing, 15,15ζ...
・Compressed gas introduction hole, 16, 16t... Mounting device with compressed gas transfer pipes 17, 17', 18... Spool rotation shaft with handle 20, 19... Tip shaft Department.

Claims (1)

[Claims] 1. A thin film guide plate is inserted into the cartridge through the film outlet of the cartridge, which has been rewound even to the tongue portion, and a slight gap is formed between the cartridge spool and the bearing part of the cartridge cap. From a cartridge characterized in that the spool is rotated several times in the film winding direction while blowing gas through the film, and then rotated in the opposite direction, the tongue portion of the film is placed against a guide plate, and the film is pulled out together with the guide plate from the film outlet. How to pull out the film. 2. On the machine base, on the opposing sides of the machine frame, there is a recessed part into which the shaft end of the cartridge spool enters, and a packing that contacts the cartridge cap and serves for airtightness and cartridge support, which are installed concentrically. and a pressurized gas inlet opened in the recessed portion, each cartridge holding body is placed in pairs, and one of the cartridge holding bodies is slid on the machine base. In addition to making it possible to hold the cartridge as much as possible, the frame of one of the cartridge holding machines is made to be concentric with the recessed part made in the machine frame, so that the tip end is attached to the spool of the cartridge. A film drawing machine from a cartridge, characterized in that a spool rotating shaft with a handle is attached to the rear end so that the spool can be rotated by engaging with the spool, and the rear end is provided with a rotating handle.