JPH02208655A - Photographic film cleaner - Google Patents

Abstract

PURPOSE:To easily and securely remove sticking matter from a film by passing a photographic film between two cohesive rollers. CONSTITUTION:One end of a negative film 38 is inserted into between the cohesive rollers 10 and 12 and while grip parts 42 and 44 are gripped lightly, the film 46 is drawn out slowly in the opposite direction. At this time, the cohesive rollers 10 and 12 clamp the negative film 46 while held invariably parallel without reference to the thickness by the elastic deformation of a plate spring 32e and 34e. Then when the negative film 46 is pulled, sticking matter 48 such as dust sticking on the top and reverse surfaces of the negative film 46 sticks on the surfaces of cohesive tapes 14 and 16. Consequently, the sticking matter on the film 46 is easily and securely removed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film cleaner for removing deposits from photographic film.

[Conventional technology]

Photographic printing is performed by enlarging and projecting an image recorded on a photographic film onto a photosensitive material such as photographic paper.

For this reason, it is required that the photographic film be free of dirt, dust, etc. during printing.

[Problem to be solved by the invention]

However, in the past, there was no equipment or device for removing dust and the like adhering to photographic film, so there was a problem in that the adhering matter on photographic film was printed onto the photosensitive material as it was, leading to a deterioration in the quality of prints.

[Purpose of the invention]

The present invention has been made in view of these points, and an object of the present invention is to provide a film cleaner that can easily and reliably remove deposits from photographic film.

[Means to solve the problem]

In order to achieve the above object, the present invention comprises two rollers having adhesive outer peripheral surfaces, and a support means for supporting these two rollers in a substantially parallel and rotatable manner.
The photographic film is sandwiched between the rollers of the book and sent out.

[Effect]

By sandwiching photographic film between two adhesive rollers and pulling the end of the film by hand, the photographic film will pass between the two rollers. At this time, dirt, dust, and other substances adhering to both the front and back surfaces of the photographic film are transferred to the surface of the adhesive roller, so that the photographic film becomes clean.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 shows the structure of the film cleaner according to this embodiment. The adhesive roller 10.12 has a structure in which a plurality of adhesive tapes 14.16 with the adhesive side facing outward are wound around cores 18, 20. This adhesive tape 14.1
6, single-sided tape is used, and notches (perforations) 22 are formed at every fixed length, so that when the adhesive strength decreases, at least one roll can be cut off to maintain adhesive strength. The surface can be used.

In the roller holder 30, two arms 32 and 34 are overlapped so that they intersect, and a shaft 36 is inserted through the intersection.

One end of each arm 32.34 is a shaft portion 32a having a slightly smaller diameter than the winding core 18.20.

34a, and threaded portions 32b are provided on both sides thereof.

34b and a collar 3 for regulating the position of the adhesive rollers 10 and 12.
2c and 34c are formed. Shaft portions 32a, 34a
The cores 1B and 20 of the adhesive rollers 10 and 12 are rotatably inserted through the threaded portions 32b and 32 so as not to come out.
4b are screwed with flanged cap nuts 38 and 40, respectively.

Further, a part of the arm 32.34 near the axis 36 is formed by temporary springs 32e and 34e, so that when the adhesive rollers 10.12 are brought into contact, these rollers can always maintain parallel contact. It has become. Note that reference numerals 42 and 44 indicate grip portions.

Next, the operation of the film cleaner constructed as described above will be explained with reference to FIG. 1.

When installing the adhesive rollers 10 and 12, the core 18
, 20 are fitted onto the shaft portions 32a, 34a of the roller holder 30, respectively, and then the flanged cap nuts 38, 40 are screwed onto the threaded portions 32b, 34b. The cores 1B and 20 of each adhesive roller 10 and 12 have a slightly larger diameter than the shaft portions 32a and 34a, so that the shaft portions 32a and 20 can rotate freely without wobbling.
34a, and its position is regulated between the brim bag nut (38.40) and the brim 32c, 34c.

The adhesive rollers 10 and 12 will be attached later on to the negative film 3.
8 is inserted between the adhesive rollers 10 and 12.Next, while lightly grasping the grip portions 42 and 44, slowly pull out the negative film 46 from the opposite direction.At this time, the elasticity of the leaf springs 32e and 34e Due to deformation, the adhesive roller 10
．． 12 always holds the negative film 46 in a parallel state regardless of its thickness. Thereafter, when the negative film 46 is pulled, the adhesive rollers 10 and 12 rotate in opposite directions, and the deposits 48 such as dust attached to the front and back of the negative film 46 are removed from the adhesive tape 14.
Sticks to the surface of 16. As a result, the negative film 46
After it is completely pulled out, it will be in a clean state with no deposits.

With use, the surface of the adhesive tape 14, 16 becomes dirty and its adhesive strength decreases, but in this case, the dirty part can be cut out from the notch 22 to reveal a new adhesive surface.

Further, in the above embodiment, the adhesive roller is simply fitted into the shaft, but instead of this, the shaft may be used as a rotating shaft, and the adhesive roller may be tightly fitted into this rotating shaft. It is also possible to incorporate a motor to feed the film continuously.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and as shown in FIG. The roller 50 and the adhesive roller 52 may be configured to be always urged in the contact direction by the compression spring 54. The Teflon roller 50 is biased downward by springs 53 and 55 so that it can grip the negative film with a predetermined pressure. This configuration has the advantage that contact between the adhesive rollers can be avoided. Note that, according to this configuration, since it is possible to remove deposits only from one side of the film, it is necessary to pass the film between the rollers 50 and 52 twice in order to clean both sides.

It is also possible to use an adhesive roller in place of the Teflon roller 50 shown in FIG. However, in the case of this configuration, for example, the compression spring 54 is connected to the shaft 56 and the grip portion 58 so that both adhesive rollers do not come into contact with each other when not in use.
It is desirable to provide the roller between the two rollers so that both rollers are always biased in the direction of separation.

Furthermore, in order to facilitate the attachment and detachment of the adhesive roller to and from the support member 60, it is preferable that the shaft 62 supporting the adhesive roller 61 is configured to be freely expandable and retractable in the axial direction, as shown in FIG.

In the above embodiments, a single-sided tape is used as the adhesive tape, but a double-sided tape may also be used. Furthermore, adhesive material such as rubber may be provided on the surface of the roller.

〔Effect of the invention〕

In the present invention, since the photographic film is passed between two adhesive rollers, there is an effect that deposits on the film can be easily and reliably removed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of an embodiment of the present invention. FIG. 2 is a perspective view showing the usage state of the embodiment. FIG. 3 is a perspective view showing the configuration of another embodiment of the present invention. FIG. 4 is a perspective view (partially in section) showing essential parts of the embodiment of FIG. 3. 10.12... Adhesive roller 14.16... Adhesive tape 18.20... Winding core 30... Holder 32.34... Arm 38.40... Flammed bag nut 46... - Negative film 48... Adhesive matter.

Claims (1)

[Claims] It consists of two rollers with adhesive outer peripheral surfaces and a support means that rotatably supports these two rollers and allows them to be freely displaced toward or away from each other;
A photographic film cleaner characterized by feeding out photographic film by sandwiching it between book rollers.