JP2821862B2 - Film carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projection device for enlarging and projecting an image of a microfilm, for example, and a reader printer having a printing function in addition thereto. The present invention relates to a film carrier of a reader printer capable of performing projection.

[0002]

2. Description of the Related Art There are a projection device for projecting image information recorded on a microfilm onto a screen, and a reader printer having a printing function in addition to a projection function. There are two types of microfilms, namely, a roll-shaped film such as an open reel type, that is, a roll film, and a sheet-shaped film, such as a microfish or an aperture card, that is, a sheet film.

[0003] Usually, the above two types of microfilms are each a dedicated film carrier, that is, a roll film carrier (hereinafter, referred to as a roll carrier) and a sheet film carrier (hereinafter, referred to as a roll carrier).
It is called a sheet carrier. ) Are separately carried.

However, in this case, the roll carrier and the sheet carrier cannot be installed at the same time in the projector, and in order to project different types of microfilms, the work of attaching and detaching and exchanging the film carrier is stronger than that of the projector. It takes time and effort.

To solve this problem, for example, there is a reader printer 101 in which a film carrier 205 capable of disposing both a roll carrier 208 and a sheet carrier 209 as shown in FIG. 9 can be mounted. In the reader printer 101, the light emitted from the illumination lamp 130 travels along the projection optical path L ', projects either the microfilm carried on the roll carrier 208 or the sheet carrier 209, passes through the projection lens 105, and moves the optical member along the broken line. After that, the light is irradiated on the screen 140. Alternatively, the photosensitive member 15 which is a known image forming unit is indicated by a solid line.
It is configured to be capable of irradiating to form an image at 0.
Then, the roll carrier 208 and the sheet carrier 209
Is selectively used by moving and disposing the roll carrier 208 and the sheet carrier 209 on the film carrier 205 in the direction of the arrow attached to the projection optical path L ′.

A roll carrier 208 and a sheet carrier 209 are provided on the film carrier 205 shown in FIG. 10A. When the roll carrier 208 for projecting the image information of the roll film is set at the projection position, the sheet carrier 209 is provided. 209 is moved to a position where the projection optical path L ′ does not interfere with the projection lens 105 on the projection optical path L ′ (FIG. 10).
10B, and when the sheet carrier 209 is placed at the projection position, the roll carrier 208 is moved to the projection optical path L ′ and the projection lens 105 on the projection optical path L ′. Move to a position that does not interfere with
(The back side in (b)).

The projection lens 105 is in each case a transparent plate 210, 211 sandwiching the microfilm.
Is pressed on the projection optical path L ′.

[0008]

However, in the above conventional example, one carrier interferes with the other carrier in order to position the roll carrier 208 and the sheet carrier 209 on the film carrier 205 on the projection optical path L '. It is necessary to move to a position where it does not need to be retracted, and a space for retracting each carrier is required before and after the projection optical path L ′, and the film carrier 205 is inevitably large.

Therefore, as shown in FIG. 11, there has been proposed a film carrier 205 in which the roll carrier 208 and the sheet carrier 209 are overlapped in a positional relationship viewed from the side of the reader printer 101.

With this configuration, the size of the film carrier 205 in the front-rear direction can be made compact, but one of the carriers, the sheet carrier 209 in FIG.
Is retracted from the projection optical path L 'in such a manner as to sink under the roll carrier 208, the following problem occurs.

That is, in a position where the sheet carrier 209 does not maintain the predetermined retracted position, the roll carrier 20
8 is moved so as to be positioned on the projection optical path L ′, it collides with the sheet carrier 209, and each carrier,
The moving rail is damaged or damaged.
Further, the glass plate sandwiching the sheet film in the sheet carrier 209 may be damaged by the impact of the collision again,
If the glass is open for any reason (carelessness of the operator or operation error), the glass will be damaged,
There also arises a problem that the roll carrier 208 and the sheet carrier 209 mesh with each other and become inoperable.

Further, if careless operation is performed on the conventional film carrier 205 shown in FIG. 10, the roll carrier 208 and the sheet carrier 209 will collide greatly, and the same problem as described above may occur. There is.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems with respect to a film carrier, and has an object to solve the above problem only when one carrier is retracted to a predetermined retracted position. By providing locking means so that the carrier can move freely, collision between carriers,
It is an object of the present invention to prevent breakage of a glass plate and other parts and to improve operability by eliminating careless operation of an operator.

[0014]

According to the present invention, there is provided a roll film carrier for supporting a roll film, and a sheet film carrier for supporting a sheet film. When using one of the carriers positioned on the projection optical path and using the other carrier at a predetermined retreat position outside the projection optical path, one of the carriers is projected away from the predetermined retreat position. A lock means is provided so that the other carrier cannot be moved from a predetermined retracted position when it is located near the optical path.

[0015] The locking means may fix one of the carriers at a predetermined retreat position and release the lock only when the other carrier retreats to a predetermined retreat position. is there.

Further, the locking means fixes the roll film carrier at a predetermined retreat position, and retreats the sheet film carrier to the predetermined retreat position to release the lock, thereby moving the roll film carrier from the retreat position onto the projection optical path. It is also preferable to be able to arrange.

A retracting position fixing means for fixing the sheet film carrier at a position where the sheet film carrier is retracted to a predetermined retracting position may be provided.

Further, a regulating member for retracting the sheet film carrier to the retracted position with the transparent plate closed may be provided.

[0019]

In the projection apparatus constructed as described above, when one of the carriers is located near the projection optical path at a distance from the predetermined retreat position by the locking means, the other carrier is moved to the predetermined retreat position. It becomes more immovable.

Further, the locking means fixes one of the carriers at a predetermined retreat position, and releases the lock only when the other carrier retreats to the predetermined retreat position.

Further, the locking means fixes the roll film carrier at a predetermined retreat position, and retreats the sheet film carrier to the predetermined retreat position, thereby releasing the lock, and moving the roll film carrier from the retreat position onto the projection optical path. Can be arranged.

At a position where the sheet film carrier is retracted to a predetermined retracted position, it is fixed by a retracting position fixing means for fixing the sheet film carrier.

The restricting member retracts to the retracted position with the transparent plate of the sheet film carrier closed.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. (First Embodiment) FIG. 1 is an external perspective view showing a projection printer or a reader printer 1 as an image forming apparatus to which a film carrier 5 to which the present invention is applied is detachably mounted.

In FIG. 1, a projection lens 21 is provided above the projection position of the film carrier 5, and a projection image is enlarged and projected on a screen 40.

The film carrier 5 includes two carriers, a roll carrier (roll film carrier) 8 and a sheet carrier (sheet film carrier) 9, and any one of the carriers is used by being selectively positioned in the projection optical path L.

FIG. 2 and FIG. 3 are explanatory views of a main part in a state where the film carrier 5 is mounted on the reader printer 1.
Film carrier 5 is base 6, roll carrier substrate (substrate) 7, roll carrier (roll film carrier)
8, a base 6 composed of a sheet carrier (sheet film carrier) 9 is fixed at a predetermined position of the reader printer 1. The roll carrier 8 includes a transport path for transporting the roll film Fr, and glass G ₁ and G ₂ which are transparent plates for holding the roll film Fr therebetween, and is capable of automatic transport. Further, by operating the handle 14, the roll 14 moves in the front-rear direction with respect to the roll carrier substrate 7. When the roll carrier 8 is pushed beyond the range of movement with the roll carrier substrate 7, the roll carrier substrate 7
The rollers (not shown) provided on the side face move along the rails 11 provided on the base 6 so that the roll carrier substrate 7 moves integrally with the roll carrier 8 in the front-back direction, and the roll carrier moves rearward. When the substrate 7 moves, it is lifted up along the rail 11.

By operating the handle 12, the seat carrier 9 is moved from a left-right moving frame 15 moving in the left-right direction along the rail 13 and a front-rear moving frame 16 moving in the front-rear direction with respect to the left-right moving frame 15. The front and rear moving frame 16 is provided with glasses G ₃ and G ₄ for holding the sheet film Fs.

FIG. 2 is a diagram showing a state when the roll carrier 8 is used. In order to position the roll film Fr on the projection optical path L of the reader printer 1, the sheet carrier 9 is used.
Is brought to a predetermined retreat position at the left end, and the roll carrier 8 is pulled toward the user, whereby the roll carrier substrate 7 comes to the forefront in conjunction with this. In this state, the roll carrier substrate 7
A space for retreating the sheet carrier 9 is provided between the base and the base 6. Here, the position where the roll film Fr is to be projected is adjusted by moving the roll carrier 8 in the front-back direction. Thereafter, the roll film Fr is conveyed in the left-right direction by controlling a roll film conveyance motor as a conveyance means provided in the roll carrier 8 based on a signal from the roll film conveyance operation unit 17 of the roll carrier 8, A piece to be viewed is arranged on the projection optical path L. FIG. 4A is a sectional view taken along the line AA of FIG. 2, and the roll film Fr is arranged on the projection optical path L.

FIG. 3 is a view showing a state in which the sheet carrier 9 is used. When the roll carrier 8 is moved to the back, the roll carrier substrate 7 is moved to the back in conjunction with it and then lifted up to a predetermined retreat position. And position. When the roll carrier substrate 7 and the roll carrier 8 are lifted up, a space is created between the roll carrier substrate 7 and the base 6, and the sheet carrier 9 can freely move left and right, so that the transparent glass G ₃ , The sheet carrier 9 is positioned so that the sheet film Fs sandwiched between G ₄ is positioned on the projection optical path L.
Can be moved back and forth and left and right. FIG. 4 is a sectional view taken along the line BB of FIG.
(B), wherein the sheet film Fs is disposed on the projection optical path L.

As described above, the entire roll carrier 8 including the glasses G ₁ , G ₂ supporting the roll film Fr can be moved, and the glass G ₃ , G supporting the sheet film Fs can be similarly applied to the sheet carrier 9. ₄ , the roll film Fr located on the projection optical path L
Further, the film to be projected can be easily changed without being forced to attach and detach the sheet film Fs.

In particular, in the film carrier 5 having such a configuration, it is necessary to selectively dispose the roll carrier 8 and the sheet carrier 9 on the projection optical path L to project the image information of the film. In order to prevent interference between the carriers, a lock means is provided so that the other carrier is free to move only when one carrier is retracted to a predetermined retract position.

FIG. 5 is a conceptual view of the operation of the lock means 30. FIG. 5A is a top view of the film carrier 5 in which the roll carrier 8 and the sheet carrier 9 are located at respective predetermined retracted positions. It is a diagram showing a state where neither carrier is located on the projection optical path L.

Although a detailed description will be given later in this embodiment, the lock means 30 cannot move the roll carrier 8 as one of the carriers from a predetermined retracted position, and the lock means 30 is in the state shown in FIG. Only when the sheet carrier 9 is retracted to a predetermined retract position.
Is unlocked. Therefore, the roll carrier 8 can be positioned on the projection optical path L as shown in FIG. 5B only from the state of FIG. 5A in which the locking means 30 is released, or similarly. 5 (a), it is possible to position the sheet carrier 9 on the projection optical path L as shown in FIG. 5 (c).

FIG. 5C is a view showing a state where the sheet carrier 9 is positioned on the projection optical path L from a predetermined retracted position.
Since the sheet carrier 9 is not at the predetermined retreat position, the lock means 30 locks the roll carrier 8 and fixes it so as not to move.

6 and 7 are views for explaining the operation of the lock means 30. Reference numeral 31 denotes a lock claw for fixing the roll carrier substrate 7 at a predetermined retracted position.
The roll carrier substrate 7 is fixed by being engaged with a lock groove 38 provided in the base plate. Reference numeral 32 denotes a roller for releasing the lock. The retracting positioning cam 35 for determining the retracted position of the sheet carrier 9 provided on the sheet carrier 9 abuts to rotate the lock claw 31 about the rotational shaft 31a. By releasing the engagement with the lock groove 38, the roll carrier 8 moves in the direction of arrow 39 and can be positioned on the projection optical path L. 33 is an urging means for urging the lock claw 31 in a direction for engaging the lock claw 38. 3
4 is a mounting plate for the lock claw 31. Reference numeral 36 denotes a position where the sheet carrier 9 is retracted to a predetermined retracted position, which is a catch as a retracting position fixing means for fixing the sheet carrier 9. The catch 36 holds the sheet carrier 9 while maintaining a predetermined holding force which is not defeated by the urging means 33. Fix it. The catch 36 may be one using a spring as shown, or one that is fixed using a magnet, and other known fastening members can be used.

The locking means 30 constructed as described above
In FIG. 7A, when the sheet carrier 9 is moved from the predetermined retreat position, the cam 35 is separated from the roller 32, so that the lock claw 31 is engaged with the lock groove 38 of the roll carrier substrate 7 and the roll is rotated. The carrier 8 is fixed at a predetermined retracted position.

FIG. 7B shows the state in which the sheet carrier 9 is located at the predetermined retracted position and is fixed to the retracted position by the catch 36, the cam 35 contacts the roller 32, and the lock claw 31 is attached to the roll carrier substrate 7. Since the roll carrier 8 is separated from the lock groove 38, the roll carrier 8 can be moved onto the projection optical path L away from the predetermined retracted position. In this case, even if the roll carrier 8 and the sheet carrier 9 are simultaneously moved, if the movement of the sheet carrier 9 is slightly faster, the locking means 30
Works to fix the roll carrier 8, and if the roll carrier 8 moves slightly faster, the sheet carrier 9 is
As shown in (a), the sheet is stored in the sheet carrier storage section 7a of the carrier substrate 7 and cannot be moved therefrom.

In this embodiment, the release of the locking means is performed by mechanical connection with the cam 35 of the sheet carrier 9. However, a sensor is provided at a required position and the sheet carrier 9 is moved to a predetermined retracted position. When it is located, the lock means may be released by issuing a lock means release signal.

Also, as shown in FIGS. 9 and 10 as an example of a conventional film carrier, even when each carrier moves back and forth and does not overlap three-dimensionally, it is possible to provide the locking means of the present invention. I can't do anything.

Further, as a precaution for the operator when operating each carrier, a warning label stating that the locking means is unlocked after each carrier is located at the retracted position and the carrier can be moved may be attached to the operator. It is effective in preventing. (Second Embodiment) FIG. 8 is a diagram relating to a second embodiment according to the present invention. In FIG. 8, the roll carrier 8 is fixed at a predetermined retracted position, and the sheet carrier 9 is located near the projection optical path L. In this case, in order to insert the sheet film Fs between the glasses G ₃ , G ₄ holding the sheet film Fs, it is necessary to open the upper glass G ₃ ,
In the sheet carrier 9 of this embodiment, the handle 12 is pulled toward the user to move the frame 12 from the left-right moving frame 15 to the front-rear moving frame 16.
There was moved to the front side, in a state of pulling all the way forward, the upper glass G ₃ employs a mechanism that opens with the movement of the back and forth movement frame 16. (This mechanism is well known in the art and will not be described.) When the above-described mechanism is employed, when the sheet carrier 9 is retracted to a predetermined retreat position, the front / rear moving frame 16 of the sheet carrier 9 is moved. is moved to the front, when it is retractable in a state that the upper glass G ₃ open for holding the sheet film Fs, then roll carrier 8
There may damage the glass G ₃ of the upper when moving. Therefore, by providing the protrusion 41 of the regulating member on a moving path of the front and rear movable frame 16 of the base 6, the retracted position only in a state where the longitudinal movement frame 16 is not open glass G ₃ are not out in front Can not move to. Therefore,
Prevents that the roll carrier 8 remains the upper glass G ₃ open is moved, damage of the upper glass G ₃ is prevented.

[0042]

The present invention has the above-described structure and operation. By providing a lock means for allowing the other carrier to move freely only when one carrier is retracted to a predetermined retracted position. In addition, it is possible to prevent collision between carriers, breakage of a glass plate or other components, and to improve operability by eliminating careless operation by an operator.

Further, the locking means fixes the roll film carrier at a predetermined retracted position, and unlocks the sheet film carrier by retracting the sheet film carrier to the predetermined retracted position, thereby moving the roll film carrier from the retracted position onto the projection optical path. Can be arranged.

At the position where the sheet film carrier is retracted to the predetermined retracted position, it is fixed by a retracting position fixing means for fixing the sheet film carrier.

The regulating member retracts to the retracted position with the transparent plate of the sheet film carrier closed, thereby preventing breakage due to interference between the transparent plate and the roll film carrier.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a state in which a film carrier is mounted on a reader printer as a projection device according to the present invention.

FIG. 2 is an external perspective view showing a state in which a roll carrier in a film carrier is used.

FIG. 3 is an external perspective view showing a state in which a sheet carrier in a film carrier is used.

FIG. 4 is a schematic front view of a film carrier.

FIG. 5 is an operation conceptual diagram of the lock means 30.

FIG. 6 is an explanatory diagram of a lock unit.

FIG. 7 is an explanatory view of the operation of the lock means.

FIG. 8 is a diagram of a second embodiment of the present invention.

FIG. 9 is a diagram of a conventional reader printer.

FIG. 10 is a diagram of a conventional film carrier.

FIG. 11 is a diagram of a conventional reader printer.

[Explanation of symbols]

Fr roll film Fs sheet film _{G 1, G 2, G 3} , G 4 glass (transparent plate) L, L 'projection optical path 1,101 reader printer (projector) 5,205 film carrier 6 base plate 7 roll carrier substrate 8 , 208 Roll carrier (roll film carrier) 9, 209 Sheet carrier (sheet film carrier) 21, 105 Projection lens (holding means) 30 Lock means 31 Lock claw 32 Roller 33 Energizing means 34 Mounting plate 35 Cam 36 Catch (retreat position) Fixing means) 41 protrusion

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 21/11

Claims (5)

(57) [Claims] 1. A roll film carrier, which supports a roll film, and a sheet film carrier, which supports a sheet film. When one of the carriers is used on a projection optical path, the other is used. In the film carrier for retreating a carrier to a predetermined retreat position outside the projection optical path, when one of the carriers is located near the projection optical path away from the predetermined retreat position, the other carrier is moved to a predetermined retreat position. A film carrier provided with a lock means that makes the film carrier more immovable. 2. The apparatus according to claim 1, wherein said locking means fixes one of the carriers at a predetermined retreat position, and releases the lock only when the other carrier retreats to a predetermined retreat position. The film carrier as described. 3. The locking means locks the roll film carrier at a predetermined retreat position and retreats the sheet film carrier to the predetermined retreat position to release the lock, and moves the roll film carrier from the retreat position onto the projection optical path. 3. The film carrier according to claim 1, wherein the film carrier can be arranged. 4. A retracting position fixing means for fixing a sheet film carrier at a position where the sheet film carrier is retracted to a predetermined retracting position.
The film carrier according to 1. 5. The film carrier according to claim 3, further comprising a regulating member for retracting the sheet film carrier to the retracted position with the transparent plate closed.