JPS60262743A - Film feeder for film image read device - Google Patents

Abstract

PURPOSE:To facilitate read out of films of many different sorts each in small amount as well as interrupt with films of foreign sort by furnishing a film feed mechanism at its film inlet with a mechanism to feed film automatically and a mechanism to make manual feed of film. CONSTITUTION:This film feed mechanism is furnished at its film inlet, i.e. contact part of a pair of rollers 12, 12', with a suction pad 19 coupled with a vacuum pump, a transport mechanism for this pad 19 and a supply magazine 10, constituting a mechanism for automatically feeding a film 17 loaded in the magazine 10. A window k to put in and out magazine 10 is formed in the exterior wall 20 of the casing of the device, and another window l of a size to allow insertion of a max. standard film 17' is formed over this window k. A lid 21 for the window l is mounted with a hinge 22, and a mechanism for manual feed of max. standard film 17' is provided at the contact part of the above-mentioned rollers 12, 12'.

Description

Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to a film feeding device for a film image reading device for feeding a film to a film image reading device that reads an image of a developed film by optical means. It is something.

[Background of the invention]

Conventionally, this type of device has only been equipped with an automatic feeding mechanism that automatically feeds a large number of films in sequence as a mechanism for feeding the film to the film inlet portion of the film feeding mechanism for feeding the film to the reading location. There wasn't.

Such a conventional device is suitable for reading a large number of films of the same type, especially of the same size, but
Even when reading a small amount of film of various sizes or interrupt reading of films of different sizes, the same procedure as loading a large amount of film into a supply magazine must be followed each time. It was a hassle.

[Purpose of the invention]

The present invention has been made to solve the above-mentioned problems, and provides a film supply for a film image reading device that can easily read a small amount of film of various sizes and interrupt processing of films of different sizes. The purpose is to provide equipment.

[Summary of the invention]

The film feeding device for a film image reading device of the present invention includes:
An automatic feeding mechanism that automatically sequentially supplies a plurality of films to a film inlet portion of a film feeding mechanism for feeding the film to a reading location, and a manual feeding mechanism that can manually feed films directly to the film inlet portion. The film can be supplied either automatically or manually.

[Embodiments of the invention]

The present invention will be described in detail below with reference to FIGS. 1 to 4. 1 and 2 are diagrams schematically showing the optical system and film feeding mechanical system of a film image reading device to which the device of the present invention is applied.

In Fig. 1, 1 is a He Ne laser, and this laser 1
The laser beam a generated from the laser beam a passes through the beam expander 2 to expand the beam diameter and reaches the vibrating mirror 3. Since the vibrating mirror 3 repeats high-speed reciprocating rotation within b0, the reflected beam a also reciprocates within the angle of bo, and is therefore focused by the Fθ lens 4 on the surface of the developed film 5. In this state, scanning is repeated in the left and right C directions. At this time, since the film 5 moves at a slow speed in the d direction, the beam a scans the entire surface of the film 5.

The light beam a transmitted through the film 5 is reflected by a rectangular concave mirror 6, further changed in direction by a plane mirror 7, and concentratedly reaches a detector 9 via a condensing lens 8.
This detector 9 continuously reads changes in image density on the film 5.

In this case, the axis passing through the spherical center of the concave mirror 6 is e - e in the figure.
', then by setting the concave surface fi6 at an angle of β0 with respect to the incident light and the axis e-e', the angle between the incident light and the reflected light becomes 2β0, and interference between the incident light and the reflected light can be avoided. It is being

On the other hand, in FIG. 2, 10 is a supply magazine, and this magazine 10 contains a developed film 17 to be read.
are loaded in multiple layers. Among them, the topmost film 17 is suctioned by a suction pad 19 connected to a vacuum pump (not shown). The suction pad 19 is moved from the position f to the guide plate 11 by its transfer mechanism (not shown).
When transferred to the upper position f', the attracted film 17
follows and moves, and its tip is the roll 12.12',
It comes into contact with the contact portion of the rolls 12 and 12', which is the film inlet part of the film feeding mechanism, which is mainly composed of 13.13', 15.15' and a roll drive device (not shown). The rolls 12, 12', together with the rolls 13° 13', are each shown in the above-mentioned drive device and are rotated synchronously in the direction of force h', so that the film 17, which has moved to position f',
．． It is sandwiched between 12'. At the same time, the inside of the pad 19 is returned to atmospheric pressure, and the film 17 is separated from the pad 19 and transferred to the h' side in the direction of rotation of the rolls 12, 12'. As a result, the film 17 passes through the upper side of the guide plate 14, ie the image reading point, reaches the roll 13, 13' and continues its transport until it reaches the rollers 15, 15'. The rollers 15 and 15' are also rotated in the h' force direction by the above-mentioned drive device, so the film 17 continues to be transported while tilting its traveling direction slightly downward, enters the storage magazine 16, falls, and is read. The film 18 is stacked and stored, and the same operation is repeated thereafter.

In Fig. 2, the beam a emitted from the laser 1 and passed through the Fθ lens 4 enters from the i side, passes through the film 17 (film 5 in Fig. 1) at the g part, and passes through the guide plate. 14 and reaches the rectangular concave mirror 6.

3 and 4 are side sectional views showing an embodiment of a film feeding device for a film image reading device according to the present invention, respectively.
FIG. 3 shows the film automatically fed, and FIG. 4 shows the film manually fed. In both figures, the same reference numerals as in FIG. 2 indicate the same or corresponding parts. In this case, a vacuum pump (not shown), a suction pad 19 connected thereto, a suction pad transfer mechanism (not shown), a supply magazine 10, etc., make contact with the film inlet portion of the film feeding mechanism, here rollers 12 and 12'. An automatic feeding mechanism is configured to automatically feed the films 17 in the magazine 0 one after another.

Incidentally, the magazine 10 can be attached or detached from the window k of the outer wall 20 of the reader housing to the illustrated position by grasping the nondle 10a.

The upper part of the window portion of the outer wall 20 of the casing is provided with appropriate dimensions.
For example, at least a fist can be freely inserted and removed, and a window portion is formed that is large enough to allow insertion of a maximum standard film. And this window! , Peke, the lid plate 21 is hinged 22 so that it can be opened and closed freely.
The film 17' is attached to the film feed mechanism and constitutes a manual feeding mechanism that manually feeds the film 17' directly to the contact portion of the rollers 12, 12', which is the film inlet portion of the film feeding mechanism.

In the apparatus of the present invention described above, when reading a large number of films 17 of the same size one after another, first, grasp the nondle 10a of the supply magazine lO and pull it out of the reader housing through the window k, and then read the films 17. After stacking and loading, they are inserted through the window as shown in FIG. 3. When a reading operation is started in this state, the films 17 are automatically fed one by one to the film feeding mechanism, and are fed and read as shown in FIG. 2. At this time, the cover plate 21
is closed off as shown in Figure 3.

Second, when reading a small amount of films 17' of various sizes, when reading a film 17' of a large size that cannot fit into the magazine 10, or during the sequential reading process of a large amount of films 17 of the same size as described above. , when reading a film 17' of a different size, as shown in FIG.
is inserted into the reader housing by opening the lid plate 21, and inserting the leading edge of the film 17' directly into the contact area of the rollers 12 and 12'.
After feeding by hand, the lid plate 21 is closed by pulling the hand. Thereby, the film 17' is fed to the film transport mechanism and is fed and read as shown in FIG. At this time, the suction pad 19 is retracted to a position f' as shown in FIG. 4 so as not to interfere with such manual film feeding.

Here, as shown in FIG. 1, in a film image reading device that performs a reading operation using optical means, the light beam a is
(17, 17') must be blocked from external light while being read. For this reason, the housing of the reading device is usually a dark box, but there is no problem even if outside light enters during the reading process. The device of the present invention has a cover plate 21 on the outer wall 20 of such a reader housing.
Since this is provided, outside light enters the housing when it is opened, but
At this time, the film 17' is being manually fed and reading is not being performed, so after feeding the film 17',
Immediately closing the lid 21 does not cause any inconvenience.

[Effects of the Invention] As described above, the present invention has an automatic feeding mechanism that automatically sequentially supplies a plurality of films to the film inlet portion of a film transport mechanism, and a mechanism that can manually feed films directly to the film inlet portion. Since it is equipped with a manual feeding mechanism, it is possible to read a small amount of film of various sizes, an interrupt reading process of films of different sizes, and a reading process of a large size film that cannot fit into the supply magazine. This has the advantage that it can be easily accomplished using a supply mechanism.

[Brief explanation of the drawing]

1 and 2 are diagrams showing an overview of the optical system and film feeding mechanical system of a film image reading device to which the device of the present invention is applied, and FIG. 3 and 4 are diagrams showing a film for a film image reading device according to the present invention. FIG. 3 is a side cross-sectional view showing one embodiment of the supply device in different usage states. 1- He Ne laser, 5, 17.17 < 18.
・Developed 7 (lum, 9...detector, 10...
・Supply magazine, 12° 12-13, 13', 15.1
5'...roller, 16...storage magazine, 19...
・Suction pad, 20...Reader housing outer wall, 21・
... Lid plate, 22... Hinge, a... Laser beam light, k... Window portion, λ... Window. Patent Applicant Hitachi Medeico Co., Ltd. Agent Patent Attorney Tadashi Akimoto Figure 1! Figure 2

Claims (1)

[Claims] In a film feeding device of a film image reading device that reads developed film images by optical means, a plurality of films are automatically fed to the film entrance portion of the film feeding mechanism for passing the film through the reading location. A film supply device for a film image reading device, comprising a supply mechanism and a manual supply mechanism capable of manually supplying film directly to the film inlet portion.