JP2001083610A - Negative carrier positioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a negative carrier positioning device capable of accurately positioning a negative carrier in a vertical direction by inclining and providing a roller for positioning a negative carrier. SOLUTION: This negative carrier positioning device performs the positioning of the negative carrier 3 with respect to a carrier attaching base 2 which the negative carrier 3 is freely attached to/detached from. The device is equipped with the roller 42 pivotally supported on a shaft inclined to a front side in the attaching direction of the negative carrier 3 and provided on the carrier attaching base 2 and a 1st guide 33 formed in the negative carrier 3 and abutting on the roller 42 in the case of attaching the negative carrier 3 to the carrier attaching base 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a negative carrier positioning device used for a photographic printing device or the like.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Application Laid-Open No.
As described in JP-A-07334, a permanent negative carrier is provided so as to be movable from a print position to a retracted position, and a detachable second negative carrier is movable from the detachable position to the print position. A carrier switching device is known. In this negative carrier switching device, a rail is installed on the device base, the negative carrier is moved in the front-rear direction along the rail, and the negative carrier is positioned by the rail.

Further, as described in Japanese Utility Model Laid-Open Publication No. 3-51437, a structure in which a negative carrier is attached to a table, a first driving means for moving the table in one direction, and a first driving means for the table are provided. There is known a device having a second driving means for moving the table in a direction perpendicular to the moving direction of the means, and positioning the negative carrier by moving the table by driving each driving means.

Further, as a mechanism for positioning the negative carrier in the photoprinting apparatus, as shown in FIG. 7, a roller C composed of a bearing for positioning is installed near an opening B on a carrier mounting table A, and a negative carrier D is provided. In this case, a rail E is formed at the bottom of the base. Two rollers C are provided at right and left sides of the opening B at a fixed distance in the mounting direction of the negative carrier D. Two rails E are provided facing the mounting direction of the negative carrier D, and are disposed on both sides of the film opening F, respectively. According to this positioning mechanism, when mounting the negative carrier D in the opening B on the carrier mounting base A, the rail E of the negative carrier D comes into contact with the outside of the roller C, and the negative carrier is D is positioned.

[0005]

When a high-magnification lens is used in a photographic printing apparatus, a negative film mounted on a negative carrier D is an APS (Advanced Photo System) film smaller than a conventional 135 film. Therefore, more accurate positioning of the negative carrier D is required. In response to the demand, it is conceivable that when the negative carrier D is mounted on the carrier mounting base A, the rail E of the negative carrier D and the roller C of the carrier mounting base A are fitted tightly to reduce the play. Can be

However, even with such positioning measures, the positioning mechanism shown in FIG. 7 has a problem that the negative carrier D cannot always be accurately positioned. For example, as shown in FIG. 8, when mounting the negative carrier D on the carrier mounting base A, if the negative carrier D is not parallel to the carrier mounting base A but is inclined, the rail E and the roller C are fitted. Due to the tight fit, the negative carrier D is set on the carrier mounting base A in an oblique state (FIG. 9). FIGS. 8 and 9 are views of the mounting portion of the roller C of the carrier mounting base A viewed from the side in the VIII-VIII section of FIG.

When the negative carrier D is set as described above, the positional deviation of the negative carrier D in the horizontal direction is small, but the positional deviation in the vertical direction occurs. This vertical misalignment causes defocus during printing. In this case, to prevent this vertical displacement,
Pressing the negative carrier D downward may be considered. However, if the operation is performed manually, the operation of mounting the negative carrier D becomes complicated.

Accordingly, the present invention has been made to solve such a problem, and provides a negative carrier positioning apparatus capable of accurately positioning a negative carrier in a vertical direction using existing components. The purpose is to do.

[0009]

That is, a negative carrier positioning device according to the present invention is a negative carrier positioning device for positioning a negative carrier with respect to a carrier mounting base on which the negative carrier is detachable. A roller rotatably supported on a shaft that is inclined upward to the front side in the mounting direction of the negative carrier, and a guide formed on the negative carrier and abutting on the roller when the negative carrier is mounted on the carrier mounting base. It is characterized by having.

[0010] The negative carrier positioning device according to the present invention is characterized in that the inclination angle of the shaft is 45 degrees or less. Further, the negative carrier positioning device according to the present invention is characterized in that the inclination angle of the axis is 2 to 10 degrees.

According to these inventions, by inclining the shaft of the roller forward in the mounting direction, the negative carrier is transferred obliquely downward by the rotation of the roller when the negative carrier is mounted. For this reason, the negative carrier is placed in a printing position with an opening in a state of being in close contact with the surface of the carrier mounting base. Thereby, the negative carrier can be accurately positioned in the vertical direction.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In each of the drawings, the same elements are denoted by the same reference numerals, and redundant description will be omitted. Also, the dimensional ratios in the drawings do not always match those described.

FIG. 1 shows a photo printing apparatus using the negative carrier positioning apparatus according to the present embodiment.

As shown in FIG. 1, a photographic printing apparatus 1
Is a device that prints the image of the negative film 10 on photographic paper and develops the photographic paper. The photographic printing unit 11 and the developing unit 1
2 is provided. The photo printing unit 11 houses a paper magazine and prints the image of the negative film 10 on photographic paper drawn from the paper magazine. Developing unit 1
Reference numeral 2 carries in the photographic paper which has been printed in the photographic printing unit 11, and performs the respective processes of development, bleach-fixing, washing and drying.

Above the photo printing unit 11, a carrier mounting table 2 serving as a work table is provided. A keyboard 21 is provided at a left front portion of the carrier mounting base 2. The keyboard 21 is used for the photo printing device 1.
For performing operations such as printing and development. Further, a negative carrier 3 is attached to a central portion of the carrier mounting base 2, and a light source box 22 is installed at a back portion thereof.

The negative carrier 3 is for mounting and positioning a negative film 10 to be printed, and is detachable from the carrier mounting table 2. The light source box 22 accommodates a light source for performing printing, and the negative film 1 mounted on the negative carrier 3.
Light is radiated to 0 from above.

Further, a monitor 23 is provided at the left rear portion of the carrier mounting base 2. The monitor 23 displays an image of the negative film 10 to be printed and displays an operation. A sorter 24 is provided above the developing unit 12. The sorter 24 is for sorting the developed photographic paper.

FIG. 2 is an explanatory view of the negative carrier positioning device, showing a state in which the negative carrier 3 is removed from the carrier mounting base 2.

As shown in FIG. 2, the carrier mounting table 2
Is provided with an opening 41. The opening 41 is for allowing the light transmitted through the negative film 10 to pass through the photographic printing unit 11.

Rollers 42 are provided on both sides of the opening 41 of the carrier mounting base 2. The roller 42 guides the negative carrier 3 when the negative carrier 3 is attached to and detached from the carrier mounting base 2, and is supported by a shaft 43 substantially perpendicular to the carrier mounting base 2. Two rollers 42 are provided at right and left positions of the opening 41, respectively, and are arranged along the mounting / removing direction of the negative carrier 3.

A guide 44 is arranged between the left and right rollers 42,42. The guide 44 is a rod-shaped member, and prevents the negative carrier 3 from being obliquely mounted on the carrier mounting base 2.

An openable / closable cover 31 is attached to the upper surface of the negative carrier 3.
Further, a film opening 32 penetrating vertically through the main body of the negative carrier 3 is provided. Film opening 32
Is a window for irradiating the negative film 10 with light from a light source.

The first guide 3 is provided at the bottom of the negative carrier 3.
The third and second guides 34 are provided. First guide 3
The third and second guides 34 are ridges projecting downward from the bottom of the negative carrier 3. The first guides 33 are provided one by one with the film opening 32 interposed therebetween.
0 is oriented in a direction orthogonal to the mounting direction.

The second guides 34 are provided one by one with the film opening 32 interposed therebetween, and are oriented in a direction parallel to the mounting direction of the negative film 10. The distance between the first guides 33, 33 and the distance between the second guides 34, 34 are set in accordance with the distance between the left and right rollers 42, 42 of the opening 41.

A tapered portion 35 is formed at one end of each of the first guide 33 and each of the second guides 34. The first guide 33 and the second guide 3
4 is formed such that the side portion of one end portion is oblique.
This facilitates attachment of the negative carrier 3.

FIG. 3 is an explanatory view of the roller.

As shown in FIG. 3, the roller 42 is supported by a shaft 43 oriented substantially vertically. This shaft 43 is
The negative carrier 3 is mounted on the carrier mounting base 2 in a state where its upper side is inclined forward from the vertical direction in the mounting direction of the negative carrier 3 (right direction in FIG. 3). For this reason, the roller 42 is installed in an inclined state, and the front part in the mounting direction of the negative carrier 3 is lowered below the rear part.

Assuming that the inclination angle of the shaft 43 of the roller 42 is θ, the inclination angle θ is appropriately set to an angle of 45 degrees or less in consideration of the separation distance between the rollers 42, the outer diameter of the roller 42, and the like. However, in consideration of the operating resistance at the time of mounting the negative carrier 3, it is preferable to set the angle to 2 to 10 degrees. That is, by setting the inclination angle θ to 2 degrees or more, the positioning effect of the negative carrier 3 can be reliably expected.
By setting the inclination angle θ to 10 degrees or less, the first guide 33
Alternatively, it is possible to prevent the sliding between the second guide 34 and the roller 42 from becoming excessive.

Next, the operation of the negative carrier positioning device according to this embodiment will be described.

As shown in FIG. 2, when the negative carrier 3 is mounted on the carrier mounting base 2 so that the negative film 10 can be fed laterally, the negative film 3 is attached to the mounting direction of the negative carrier 3 (the vertical direction in FIG. 2). Orient the negative carrier 3 so that 10 is oriented sideways. Then, the inner surface side of each of the first guides 33 is brought into contact with the outer periphery of the roller 42 so that the negative carrier 3 is attached to the carrier mount 2.
And push it out to the back. Thereby, the negative carrier 3 slides along the carrier mount 2.

At this time, as shown in FIG.
And the shaft 43 is inclined forward in the mounting direction, so that the negative carrier 3 is transferred obliquely downward by the rollers 42. Therefore, as shown in FIG. 5, the negative carrier 3 is placed in a print position with the opening 41 in a state of being in close contact with the surface of the carrier mount 2. Thus, the negative carrier 3 is oriented in a direction orthogonal to the exposure direction (the vertical direction in FIG. 5), and the negative carrier 3 can be accurately positioned in the vertical direction. FIGS. 4 and 5 are side views of the installation part of the roller 42 of the carrier mounting base 2 in the cross section taken along line IV-IV of FIG.

Even if the negative carrier 3 is not parallel to the carrier mounting table 2 when the negative carrier 3 is mounted, the negative carrier 3 is transferred obliquely downward due to the inclination of the roller 42 and the carrier mounting table 2 is moved. The posture of the negative carrier 3 is corrected along the surface of the negative carrier. Therefore, even in this case, the negative carrier 3 can be accurately positioned in the vertical direction.

On the other hand, when the negative carrier 3 is detached from the carrier mounting base 2, as shown in FIG. 5, when the negative carrier 3 is moved to the near side, the negative carrier 3 is inclined obliquely upward due to the inclination of the roller 42. Be transported. Therefore, when the negative carrier 3 is removed, the negative carrier 3 hardly comes into contact with the surface of the carrier mounting base 2, and almost no frictional force is generated between the negative carrier 3 and the carrier mounting base 2, which serves as a take-out resistance. Therefore, the negative carrier 3 can be easily taken out. In addition, the surface of the carrier mounting base 2 is prevented from being worn down by friction, and the use durability can be improved.

When the negative carrier 3 is mounted on the carrier mounting base 2 so that the negative film 10 can be vertically fed, as shown in FIG. 6, the mounting direction of the negative carrier 3 (vertical direction in FIG. 6) is as shown in FIG. Negative film 10
The negative carrier 3 is turned so that is turned vertically. Then, the inner surface side of each of the second guides 34, 34 is brought into contact with the outer periphery of the roller 42, and the negative carrier 3 is pushed out to the rear side of the carrier mount 2. Thereby, the negative carrier 3 slides along the carrier mount 2.

As described above, even when the negative carrier 3 is mounted so that the negative film 10 is vertically fed,
As in the case where the negative film 10 is fed laterally, the negative carrier 3 can be accurately positioned. Further, when the negative film 3 is removed, the negative carrier 3 can be easily taken out as in the case of laterally feeding the negative film 10, and the durability of the carrier mounting base 2 is improved by preventing the surface of the carrier mounting table 2 from being worn down. I can do it.

In this embodiment, the case where the negative carrier positioning device according to the present invention is used in a photographic printing device for performing printing or the like has been described. However, the negative carrier positioning device according to the present invention is applicable to such a device. The present invention is not limited to this, and may be used for a device other than the photo printing apparatus 1 of the present embodiment.

[0037]

As described above, according to the present invention, by inclining the roller shaft forward in the mounting direction,
When the negative carrier is mounted, the rotation of the roller causes the negative carrier to be transferred obliquely downward. For this reason, the negative carrier is placed in a printing position with an opening in a state of being in close contact with the surface of the carrier mounting base. Thus, the negative carrier is oriented in a direction perpendicular to the exposure direction, and the negative carrier can be accurately positioned in the vertical direction.

Further, even when the negative carrier is not parallel to the carrier mounting table when the negative carrier is mounted, the inclination of the rollers causes the negative carrier to be transported obliquely downward and to move along the surface of the carrier mounting table. The attitude of the negative carrier is corrected. Therefore, even in this case, the negative carrier can be accurately positioned.

Further, when removing the negative carrier from the carrier mounting table, when the negative carrier is moved to the near side, the negative carrier is transferred obliquely upward due to the inclination of the rollers. Therefore, when the negative carrier is removed, the negative carrier hardly comes into contact with the surface of the carrier mounting base, and almost no frictional force is generated between the negative carrier and the carrier mounting base. Therefore, the negative carrier can be easily taken out. In addition, the surface of the carrier mounting base is prevented from being worn down due to friction, and the use durability can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a photographic printing device using a negative carrier positioning device according to an embodiment.

FIG. 2 is an explanatory diagram of a negative carrier positioning device according to the embodiment.

FIG. 3 is an explanatory diagram of a roller of the negative carrier positioning device.

FIG. 4 is an explanatory diagram of an operation of the negative carrier positioning device according to the embodiment.

FIG. 5 is an explanatory diagram of an operation of the negative carrier positioning device according to the embodiment.

FIG. 6 is an explanatory diagram of a method of using the negative carrier positioning device according to the embodiment.

FIG. 7 is an explanatory diagram of a positioning technique that is a premise of the present invention.

FIG. 8 is an explanatory diagram of a positioning technique which is a premise of the present invention.

FIG. 9 is an explanatory diagram of a positioning technique that is a premise of the present invention.

[Explanation of symbols]

2 ... Carrier mounting base, 3 ... Negative carrier, 42 ... Roller, 33 ... First guide, 34 ... Second guide.

Claims (3)

[Claims] 1. A negative carrier positioning device for positioning a negative carrier with respect to a carrier mounting base on which the negative carrier is detachable. The negative carrier positioning apparatus is provided on the carrier mounting base, and the upper side is located forward in the mounting direction of the negative carrier. A roller rotatably supported by the inclined shaft; and a guide formed on the negative carrier and abutting on the roller when the negative carrier is mounted on the carrier mounting base. Negative carrier positioning device. 2. The negative carrier positioning device according to claim 1, wherein the inclination angle of the shaft is 45 degrees or less. 3. The negative carrier positioning device according to claim 1, wherein an inclination angle of the shaft is 2 to 10 degrees.