JPH0138585Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a shot leader for a developing machine.
In particular, the present invention relates to a device for facilitating the connection between a developing film and a shot leader.

Conventional technology Conventionally, when feeding photographed film into a developing machine to develop it, a shot leader, which is slightly thicker and wider than the film, is used to attach to the leading edge of the film, and this shot leader is used as a guide to feed the film into the developing machine. The developed film is taken out from the machine.

Problems to be Solved by the Invention However, in order to connect the tip of the film to the shot leader, place the tip of the film 2 on the shot leader 1 as shown in Figures 2a and b and use adhesive or adhesive. Paste it on the front and back sides using adhesive tapes 3 and 4, and attach it to the spout hole 1a of the shot leader 1 as a unit.
It is fitted into the feed gear inside the developing machine and fed into the development process, but since it is handled in a darkroom, if the wrong side is turned upside down, it will cause problems with the emulsion, etc., so check each time and make sure that the peeling is consistent. Attaching tape to the front and back sides of the film each time is time-consuming, and in order to feed the film in parallel without bending, a jig such as a spry die must be constantly used, making it difficult to maintain the film. Even if you use a tool, it is difficult to maintain parallelism because it is a dark room work, and it requires skill, and if you bend it too much, the adhesive tape will peel off or the parallelism will meander around and the film will break midway, resulting in a defective product. I feel relaxed.

Means to Solve the Problem Taking these points into consideration, this invention provides a number of slits the width of the film in the shot leader, depending on the type and size of the film, and pulls out the leading edge of the film to be developed into the slit. By passing the film through the film several times, it is possible to maintain parallelism at all times, and if necessary, by pasting the film at the point where it has been passed through, the film and shot leader can be firmly connected.

Function: As described above, this invention allows the film to move in parallel by arranging a large number of slits perpendicular to the direction of travel into which several different widths of film can be inserted.
Further, by providing a mark such as a circle mark to distinguish between the front and the back of the shot leader, which is offset from the center in one direction, it is possible to easily detect the front and back of the shot leader in the dark room.

Embodiment A perspective view and a side sectional view of the shot leader of this invention will be explained with reference to FIGS. 1a and 1b. 1 is a shot leader with a slit 5 wide enough for the film 2 to be inserted, and the slit 5 has a width that can be inserted according to the type of film such as Brawny 135, 110, 126, etc. Well then
The slits are arranged in two rows so that two different or the same types of film, such as 35mm and 126 or 110, can be used at the same time. 1a is the feed hole of shot leader 5, and when it is put into the developing machine,
The film is smoothly fed together with the film by the feed gear inside, and is subjected to predetermined processing.
Also, 6 is a slightly large round hole that serves as a marker on the right side if it is off to the right side of the shot leader's central axis Pass it through the slit 5 at a location, pass it through the previous slit 5, then return, pass through the slit that was not passed through first, return to the first slit, and pass through this. By fixing the tip of the film to the shot leader 1 with an adhesive tape 4, the shot leader and the film can be firmly connected and can be prevented from bending.

Furthermore, adhesive tape can also be used on the lower side.

Effects of the invention As described above, this invention has several (2 to 3) slits perpendicular to the direction of travel into which films of several different widths can be inserted, making it possible to use a common short leader for different films. By using the tip of the film to pass through the slit two or three times, the adhesive tape will help ensure that the short leader and film are firmly connected and will not bend, and a round hole marker is provided. Therefore, there is no need to worry about the short reader or the film being turned over inside the darkroom.

[Brief explanation of the drawing]

1A and 1B are a perspective view and a sectional side view of the shot leader of this invention, and FIGS. 2A and 2B are a front view and a side view of a conventional shot leader. In the figure, 1 is shot leader, 2 is film, and 4 is
is adhesive tape, 5 is a slit, and 6 is a sign.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A shot leader for a developing machine comprising a number of slits arranged perpendicular to the direction of travel into which films of several different widths can be inserted. (2) A short reader for a developing machine according to claim 1 of the utility model registration claim, in which a mark such as a round hole is attached to the central axis in order to recognize the direction of the short leader. .