JP2814895B2 - Photo printing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic printing apparatus for solid printing a negative film in close contact with a long printing paper.

[0002]

2. Description of the Related Art In a printing apparatus for printing a negative image of a negative film on a long photographic printing paper fed onto an exposure stage, as shown in FIG. A paper mask 31 comprising a pair of lengthwise masks 31a movably supported in the width direction and a pair of widthwise masks 31b movably supported in the length direction of the printing paper P is provided. , 31b, the printing of the bordered print and the borderless print is performed, and the screen size of the print is changed.

When the negative image of the negative film F is solid-printed on the photographic paper P by using the above-described photographic printing apparatus, the film setting recess 33 provided on the plate-shaped negative mask 32 is used.
The negative mask 32 is inserted into the mask insertion hole provided in the outer case of the printing apparatus, and the bottom surface of the film setting recess 33 of the negative mask 32 is brought into close contact with the printing paper P on the exposure stage 30. Is performed.

By the way, if the negative mask 32 is simply inserted from the mask insertion hole, the tip of the negative mask 32 is inserted into the lengthwise mask 3 when the negative mask 32 is inserted.
1a, and the negative mask 32 cannot be inserted.

Therefore, conventionally, before solid printing, the paper mask 31 is replaced with a mask guide dedicated to solid printing, and a negative mask is inserted along the mask guide.

[0006]

The photographic printing apparatus using a mask guide needs to replace the paper mask 31 with the mask guide each time the solid printing process is performed, so that it takes much time and effort. It is necessary to rewind the photographic paper every time the printer is replaced, so that there is a problem that it takes time to prepare.

In addition, it is necessary to avoid contact between the negative mask and the photographic paper when taking the negative mask in and out. Conventionally, the negative mask is lifted together with the mask guide, so that the mechanism becomes complicated, and the space for incorporating the mechanism is increased. There is also a problem of increasing the size because it must be secured.

SUMMARY OF THE INVENTION An object of the present invention is to provide a photographic printing apparatus having a very simple structure capable of shortening a preparation time in a solid printing process.

[0009]

In order to solve the above-mentioned problems, according to the present invention, a lower surface of a film setting recess in which a negative film of a negative mask is set on a long printing paper fed onto an exposure stage. In a photo printing apparatus for printing in close contact, a mask insertion hole and a guide groove for guiding the movement of both sides of the negative mask into an insertion path of the negative mask inserted on the exposure stage from a direction crossing the feeding direction of the photographic paper. And a pair of guide rollers that guide the movement of both sides of the lower surface of the negative mask and rotate at a fixed position, and are swingable in the direction in which the mask guide frame moves up and down. And a spring for deflecting the mask guide frame in a direction in which the upper surface of the guide groove comes into contact with the upper outer periphery of the guide roller. The mask employs a configuration in which the film set portion is the guide roller in a position facing onto the exposure stage is provided with a notch to be fitted.

[0010]

With the above construction, when a negative mask on which a negative film is set is inserted into the mask insertion hole of the mask guide frame, when the negative mask is guided by guide rollers on both sides of the lower surface, the negative mask is used. The guide frame is pushed upward and swings in the direction in which the tip moves upward, so that the mask guide frame is inclined. The negative mask moves while being guided by the mask guide frame held in an inclined state, and when the notch formed in the negative mask faces the guide roller, the notch fits into the outer peripheral upper portion of the guide roller, and the negative mask and the mask The leading end of the guide frame is lowered, and the bottom surface of the film setting recess of the negative mask is in close contact with the upper surface of the photographic paper on the exposure stage.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, a long printing paper P is pulled out onto an exposure stage 2 provided in an outer case 1 of a photographic printing apparatus.

A light source 3 is provided below one side of the exposure stage 2. The light from the light source 3 includes a plurality of filters 4,
The photographic paper P on the exposure stage 2 is irradiated via the first mirror 5 and the second mirror 6.

A pair of brackets 7 are provided on both sides of an incident optical path from the light source 3 to the first mirror 5, and a mask guide frame 9 for guiding insertion and removal of the negative mask 8 is provided between the pair of brackets 7.

Here, the negative mask 8 has a plate shape, and a plurality of film setting recesses 10 for setting the negative film F are formed in one row at one end thereof, and the bottom plate 11 of each film setting recess 10 is a transparent plate. Is formed from.

A concave portion 12 is provided on the lower surface of the corner portion at one end of the negative mask 8. Further, a window 13 is formed at the other end of the negative mask 8, and a pair of cutouts 14 are formed on both sides of the window 13. The window 13 is arranged on an incident optical path from the light source 3 when the negative mask 8 is set with the bottom plate 11 of the film setting concave portion 10 supported on the upper surface of the exposure stage 2, and is illuminated from the light source 3 to the first mirror 5. It is designed not to block the light.

The window 13 is required only when the negative mask 8 set in the photographic printing apparatus is positioned on the light source 3, and is provided on the other side of the exposure stage 2 or on the upper side. This is not required in a photoprinting apparatus provided with.

The mask guide frame 9 includes a light-shielding box 15
A pair of mask guides 16 is provided on both sides of the front face of the mask. A mask insertion hole 17 for inserting and removing the negative mask 8 is formed in the light-shielding box 15.
Reference numeral 7 denotes a light-shielding cloth 18 lined and held in a light-shielding state.

A guide groove 1 for guiding the movement of both sides of the negative mask 8 is provided on the inner surfaces of the pair of mask guides 16 facing each other.
9 are formed, and a notch 20 is provided in the bottom wall of each guide groove 19.

The mask guide frame 9 is rotatably supported on the bracket 7 by pins 21 in the middle of both side surfaces, and can swing in a direction in which it can move up and down.

A guide roller 22 for guiding the movement of both sides of the lower surface of the negative mask 8 is provided on the bracket 7 with a pin 23.
It is rotatably supported via. Guide roller 22
Is provided at a position facing the notch 20 of the mask guide frame 9, and a guide groove 1
A spring 24 for pressing the mask guide 16 in a direction in which the upper surface of the mask 9 comes into contact is provided below the light-shielding box 15.

In FIG. 2, reference numeral 31 denotes a paper mask provided on the exposure stage 2.

The photographic printing apparatus shown in the embodiment has the above-described structure. When the negative film F is solid-printed, the negative film F is set in the film setting concave portion 10 of the negative mask 8 and the film setting concave portion of the negative mask 8 is set. The end in which 10 is formed is inserted into the mask insertion hole 17 of the mask guide frame 9 first.

When the negative mask 8 is inserted into the mask insertion hole 17 and the tip of the negative mask 8 moves to a position where it is guided by the outer periphery of the guide roller 22, as shown in FIG. Mask guide frame 9
Is pushed up.

For this reason, the mask guide frame 9 swings around the pin 21 in the direction in which the tip moves upward, and as shown in FIG. 4 (II), the mask guide frame 9 is held in an inclined state. You.

When the negative mask 8 is further inserted, the negative mask 8 moves in an inclined state. When the negative mask 8 is inserted to a position where the notch 14 formed in the negative mask 8 faces the guide roller 22, the distal end of the negative mask 8 is lowered by the weight of the distal end of the negative mask 8 and the elasticity of the spring 24, and FIG. As shown in (III), the guide roller 22 fits into the cutout 14, the bottom plate 11 of the film setting recess 10 comes into close contact with the upper surface of the photographic paper P pulled out on the exposure stage 2, and the negative film F is solid printed. It can be processed.

When taking out the negative mask 8 after the solid printing of the negative film F, the end of the negative mask 8 which faces the outside through the mask insertion hole 17 is pressed down.
When the negative mask 8 is inclined such that the lower surface of the leading end of the negative mask 8 is lifted from the photographic paper P, the negative mask 8 is inserted into the mask insertion hole 17.
Pull out from.

In the embodiment, the notch 20 into which the outer peripheral upper portion of the guide roller 22 is fitted is provided in the bottom wall of the guide groove 19, but the width of the bottom wall is made shorter than the width of the upper wall of the guide groove 19, By disposing the guide roller 22 inside the bottom wall, the upper outer periphery of the guide roller 22 can be brought into contact with the upper surface of the guide groove, so that the notch 20 can be omitted.

[0029]

As described above, in the photographic printing apparatus according to the present invention, when the negative mask is inserted into the mask insertion hole of the film guide frame, the negative mask is inclined by the guide roller so that the front end is located upward. It moves in the inclined state, and when the notch faces the guide roller, the leading end swings in a downward direction and adheres closely to the upper surface of the photographic paper on the exposure stage, so in a state where the paper mask exists on the exposure stage, Moreover, the paper mask can be maintained in a solid printing state without damaging the printing paper.

Therefore, unlike the related art, there is no need to replace the dedicated mask guide with the paper mask, and the preparation time for the solid baking operation can be greatly reduced.

Also, since the mask guide frame and the guide roller are provided in a simple manner on the moving path of the negative mask, the assembly is easy and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a photographic printing apparatus according to the present invention.

FIG. 2 is a longitudinal sectional front view showing a setting state of a negative mask of the above apparatus.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIGS. 4 (I), (II) and (III) are diagrams showing stepwise setting states of a negative mask.

FIG. 5 is a perspective view showing a conventional photographic printing apparatus.

[Explanation of symbols]

 2 Exposure stage 8 Negative mask 9 Mask guide frame 10 Film set recess 14 Notch 17 Mask insertion hole 19 Guide groove 22 Guide roller 24 Spring

Claims (1)

(57) [Claims] 1. A photographic printing apparatus in which a lower surface of a film setting recess in which a negative film of a negative mask is set is brought into close contact with a long printing paper fed onto an exposure stage and printing is performed. In the insertion path of the negative mask inserted on the exposure stage from the cross direction, a mask guide frame having a mask insertion hole and a guide groove for guiding the movement of both sides of the negative mask, and guide the movement of both sides of the lower surface of the negative mask, A pair of guide rollers rotating at a fixed position are provided, and the mask guide frame is swingably supported in a direction in which the front and rear move up and down, and the upper surface of the guide groove contacts the outer peripheral upper portion of the guide roller. A spring for deflecting the mask guide frame toward the direction, wherein the negative mask is provided with a film set portion facing forward on the exposure stage. A photo printing device provided with a notch for fitting the guide roller.