JPH01205140A - Photograph printing device - Google Patents

Abstract

PURPOSE:To obtain a photographic paper guiding width regulation mechanism which is reliable in actuation and whose occupied space is small by constituting said mechanism by combining a cam edges where plural regulating edge parts are formed with a follower in contact with the cam edge. CONSTITUTION:A pair of followers 80 and 80 are suppressed in a direction where they are separated from each other by means of pulling springs 77 and 77 and the separation space is regulated with the widths of the respective regulating edge parts E1-E4 of a cam plate 81. By moving the cam plate 81 in a longitudinal direction through a follower roller 79 and selecting the regulating edge parts E1-E4 of the cam plate 81 on a position where the followers 80 and 80 contact with them, the separation space (d) between guiding plates 75 and 75 can be altered stepwise. Then, the separation space between the guiding members which guide both edges of the conveyed photographic paper can be set with a simple constitution. Thus, the guiding width regulation mechanism which is reliable in actuation and whose occupied space is small can be obtained.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a photographic printing device.

[Background of the invention]

Generally, when forming a photograph, it is necessary to print the image on photographic paper using a photographed and developed negative film, and a photographic printing apparatus is used for this purpose. The photographic paper from this photographic printing device is then developed by a photographic processing device to form a photograph.

FIG. 3 is an explanatory diagram showing the outline of an automatic photo processing system, where l is a photo printing device, 2 is a developing processing section, 3 is a drying section, and 4 is a part of a cutter. A lamp L and a reflecting mirror R are provided, and the optical image of the negative film N formed by the light source lamp L is reflected by the reflecting mirror R, thereby conveying the photographic paper roll from the photographic paper roll storage section 5 and positioning it in the print area. The image of the negative film N is exposed to light on the photographic paper P and printed.

This printed photographic paper P is then conveyed to pass through a development processing tank 6, a bleach-fixing processing tank 7, and a stabilization processing tank 8 of three types, which constitute the development processing section 2 of the photographic processing apparatus, in this order. Development processing is performed. The photographic paper P that has been developed in this way is then sent to the drying section 3 and dried by, for example, hot air.
is cut to form a photograph.

[Problem to be solved by the invention]

In the photo printing device of the automatic photo processing system as described above, it is necessary to be able to stably transport photographic paper of various width dimensions so that the required printing processing is performed on the photographic paper of the selected width dimension. Therefore, guide members for guiding both side edges of the photographic paper used are provided so as to be separated from each other by a guide width regulating mechanism that regulates the spacing thereof, that is, the guide width.

Conventionally, various structures have been known as guide width regulating mechanisms, but all of them have complicated structures, do not necessarily have sufficient operational reliability, and require a relatively large dedicated space. There are problems.

[Purpose of the invention]

The present invention has been made based on the above-mentioned circumstances, and uses an extremely simple structure to adjust the spacing between guide members that guide both side edges of photographic paper in accordance with the width of the photographic paper being conveyed. It is an object of the present invention to provide a photographic printing device having a guide width regulating mechanism that can be set, has sufficiently high operational reliability, and occupies a small space.

[Means for solving problems]

The photographic printing apparatus of the present invention includes a pair of guide members that are provided to move toward and away from each other in order to guide both side edges of photographic paper being conveyed, and a guide that regulates the spacing between the pair of guide members. a width regulating mechanism, the guide width regulating mechanism includes a spring that suppresses the pair of guide members in a direction in which they move toward and away from each other; It consists of a pair of opposing members facing each other in the width direction, and a spacing regulating member interposed between the pair of opposing members to regulate the spacing against the spring, and the opposing members and the spacing regulating member are arranged in the width direction. It is characterized by a combination of a cam edge in which a plurality of regulating edges located at different levels are sequentially formed in the length direction, and a follower that is relatively opposed to the cam edge. shall be.

〔effect〕

According to such a configuration, the cam edge constituting one of the opposing member and the spacing regulating member can be formed as a cam plate made of a plate material very easily and accurately, and the cam edge and the follower can be connected to each other by a spring. Since it is only necessary to configure them so that they face each other, the overall configuration is simple and easy to assemble, the operation is highly reliable, and the space occupied is small.

〔Example〕

Examples of the present invention will be described below.

FIG. 1 is an explanatory diagram showing the configuration of a photographic printing apparatus according to an embodiment of the present invention, in which 10 is an outer box, L is a light source lamp, R is a reflecting mirror, 11 is a color filter, 12 is a mirror tunnel, 13 is a negative carrier, 14 is a lens, and 15 is a dark shutter, in which the light image of the negative film N is projected onto the photographic paper P moving along the path shown by the chain line in the print area, as shown by the arrow A, and exposed. be exposed. T is an operation table.

In the photographic paper roll storage section 5 provided at the bottom of the device, 20 is a mounting cavity, 21 is a magazine table, and 22
denotes a photographic paper magazine, 23 denotes a photographic paper roll, and the magazine table 21 has a first
The magazine table 21 is supported so as to be freely movable in a direction perpendicular to the plane of the drawing, so that the magazine table 21 is received within the mounting cavity 20 so as to be horizontally removable. A photographic paper magazine 22 is removably supported on this magazine table 21, and inside this photographic paper magazine 22, a photographic paper roll 23 is arranged such that its rotation axis is in the running direction of the magazine table 21 (in the paper plane of FIG. 1). (direction perpendicular to).

Further, above the loading cavity 20, there is provided a photographic paper pull-out mechanism 28 having a pair of pull-out rollers 30, 31 for pulling out the photographic paper P from the photographic paper roll 23 loaded as described above. It is being Reference numeral 44 denotes a loop forming guide plate, and this loop forming guide plate 44 has guide positions indicated by solid lines located along a photographic paper path extending vertically, and a loop l of photographic paper P in a loop forming space 45. It is movable between an open position shown by a chain line in which it opens upward to allow the formation of a .

55 is a photographic paper drawer drive motor, which allows for
The feed roller 56 is driven along the axis of the photographic paper roll 23 in the photographic paper magazine 22, and one of the pull-out rollers 30, 31 connected to the feed roller 56 is driven.

60 is an upstream drive roller for driving photographic paper, and 61 is a downstream drive roller, which are driven by a common drive motor 6.
Timing bell to be driven by 3) 70.7
1 and boo! They are connected via J-72 and 73.

A sub-exposure unit (character imprinting mechanism) 65 is disposed at a position upstream of the print area so as to be movable in the length direction, and a back printer 66 is disposed at a position downstream of the downstream drive roller 61. A cutter 67 is arranged downstream of the back printer 66. 68 is a guide plate for forming an akinem loop, IA is an accumulation loop of photographic paper P, and 69 is a discharge roller. Further, 51 to S4 are photographic paper detection sensors, and Sl is a drawing roller 30.
．． 31, S2 and S3 are located upstream and downstream of the upstream drive roller 60, and S4 is located downstream of the cutter 67, respectively. S5 is a sensor for detecting the loop 1 in the loop forming space 45.

FIG. 2 shows the provision of equipment for guiding both edges of the photographic paper P being conveyed in the photographic paper conveyance path from the photographic paper roll storage section 5 to the print area and the photographic paper conveyance path following the print area. 7 is a front view showing an example of the configuration of a guide width regulating mechanism, in which a pair of guide plates 75.7
5 are provided movably in the width direction by rails 76 provided on the wall of the outer case 10 and extending in the width direction (the width direction of the photographic paper P, the left-right direction in the figure), and a pair of guide plates 75, 75. Tension springs 77, 77 are installed between each of the guide plates 75, 75 and the wall of the outer casing 10 adjacent thereto to restrain the pair of guide plates 75, 75 in a direction away from each other. A pair of followers 80, 80 each having a driven roller 79 at the tip of a tongue piece 78 is fixed to the pair of guide plates 75, 75 so as to protrude further inward and face each other closely. It is provided. A cam plate 81 that regulates the distance between the pair of followers 80 and 80 is disposed so as to be movable in the length direction (up and down direction in the figure). The cam plate 81 has protruding cam edges formed on both sides thereof, and the driven roller 79 is in contact with each inner surface of the cam plate 81. The planar shape of each cam edge corresponds to the width of the photographic paper used. A plurality of regulating edges E1 to E4 (in the example shown in the figure, four) located at different levels in the width direction are sequentially formed in the length direction depending on the size of the regulating edges E1 to E4, and a slope is formed between each regulating edge E1 to E4. It is considered F. 8
2 is an operating rod for moving the cam plate 81.

In the above configuration, the photographic paper P is pulled out by the pull-out rollers 30 and 31 from the photographic paper roll 23 in the photographic paper magazine 22 installed in the photographic paper roll storage section 5, and then transferred to the feed roller 56 and the feed roller 56. The photographic paper is transported along the photographic paper path by the pressure roller 57, and is transported by the upstream drive roller 60.
Further, by the action of the loop-forming guide plate 44, a loop L of the photographic paper is formed in the loop-forming space 45, and the leading end of the photographic paper P is pressed against the downstream drive roller 61.
The paper is conveyed and mounted until it is pressed by the paper, and the preparation for continuous printing is completed.

Then, by driving the drive motor 63 intermittently, the photographic paper P is conveyed by a length corresponding to the specified frame size, and the intended printing process is performed on the portion of the photographic paper located in the print area. When one print process is completed, the drive motor 63 is driven to further transport the photographic paper P by one frame, and the next print process is performed.

At the same time as this printing process, sub-exposure of, for example, commemorative letters, etc., to be displayed on the surface of the photograph to be printed in the printing area is applied to the photographic paper portion corresponding to the frame that follows the frame located in the printing area. The image is printed by the sub-exposure unit 65.

If necessary, appropriate numbers or letters are written by the back printer 66 on the back side of the photographic paper portion corresponding to the frame preceding the frame positioned in the print area at the same time as the printing process.

According to the above configuration, the pair of followers 80.
80 are restrained in the direction of separation from each other by the tension springs 77, 77, and the distance between them is regulated by the width of each of the regulating edges E1 to E4 of the cam plate 81.
The cam plate 81 is moved in the length direction via the driven roller 79, and the cam plate 8 is moved to a position where the driven elements 80 and 80 are in contact with each other.
By selecting one of the regulating edges E1 to E4, the spacing d of the guide plates 75, 75 can be changed stepwise. Therefore, each regulating edge E1 to E on the cam plate 81
4 is set in advance according to the protruding distance of the follower 80, 80 and the width of the photographic paper to be used, and the regulating edges E1 to E1 are set in advance according to the width of the photographic paper to be used.
By selecting E4, the guide plates 75, 75 can be moved symmetrically so that the guide width matches the width dimension of the photographic paper. Thus, in this example, the followers 80, 80 are the opposing members, and the cam plate 81 is the spacing regulating member.

Further, the cam plate 81 can be easily manufactured with an accurate shape, and does not require a complicated configuration, so that assembly is simple and operation reliability is sufficient. Moreover, the cam plate 81 is simple, and the tension spring 77 is
, 77 and followers 80, 80, no large dedicated space is required.

FIG. 3 shows a guide width regulating mechanism according to another embodiment of the present invention. In this example, similarly to FIG. Tension springs 77, 77 are installed between each of the pair of guide plates 75, 75 and the wall of the outer casing 10 adjacent thereto. are suppressed in the direction of moving away from each other. The pair of guide plates 75 and 75 include cam plates 85 and 85 that protrude inward and face each other.
85 is fixedly provided, and this cam plate 85.85
A protruding cam edge is formed on the mutually opposing inner edges of the two.

An insertion member 87 for regulating the spacing between the cam plates 85, 85 is inserted so as to be movable in the length direction by guide rails 88, 88 extending in the length direction.

86, 86 are rollers fixedly provided on both sides of the insertion member 87, and are opposed to the outside of each cam edge by the action of tension springs 77, 77. The shape of the cam edge on the inner edge of the cam plate 85.85 has a plurality of restricting edges E5 located at different levels in the width direction depending on the width of the photographic paper used, four in the illustrated example. ~E
8 are formed sequentially in the length direction, and each regulating edge E5 to E8
The space between them is designated as slope F.

According to such a configuration, the pair of cam plates 85.85 are restrained in the direction of separating from each other by the tension springs 77, 77, and the distance between them is equal to that of the interposed member 87 and each regulating edge 1aE5 of the cam plate 85.85. ~E8, so the insertion member 87 is moved in the length direction via the rollers 86 and 86, and the roller 86
．． By selecting the restricting edges E5 to E8 of the cam plate 85.85 at the position where the guide plates 86 are in contact with each other, the distance d between the guide plates 75.75 can be changed stepwise as in the case of FIG. As a result, the same effects as those of the previously described embodiments can be obtained. In this example, the cam plate 85.8
5 is a facing member, and an interposed member 87 is a spacing regulating member.

As described above, according to the present invention, the cam edge constituting one of the opposing member and the spacing regulating member can be formed very easily and accurately as a cam plate made of a plate material, and the cam edge and the follower can be formed very easily and accurately. The overall structure is simple and easy to assemble, since all that is required is to make them face each other with springs. Therefore, with an extremely simple structure, both edges of the photographic paper can be adjusted according to the width of the photographic paper being conveyed. It is possible to provide a photographic printing device having a guide width regulating mechanism that allows setting the spacing between guiding guide members, has sufficiently high operational reliability, and occupies a small space.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the configuration of a photo printing device according to an embodiment of the present invention, FIG. 2 is an explanatory front view showing an example of a guide width regulating mechanism used in the present invention, and FIG. An explanatory front view showing another example of the guide width regulating mechanism used in the invention, and FIG. 4 is an explanatory diagram showing an outline of an automatic photo processing system. 1...Photo printing device 2...Development processing section 3...Drying section 4...Cutter part 5...Photographic paper roll storage section L...Light source lamp R...Reflector N. ...Negative film P...Photographic paper 6...Development processing tank
7...Bleach-fixing treatment tank 8...Stabilization treatment tank
10...Outer box 11...Color filter 12
...Mirror tunnel 13...Negative carrier 1
4... Lens 15... Dark shutter T...
Operation table 20... Mounting cavity 21...
Magazine table 22... Photographic paper magazine 23.
...Photographic paper roll 28...Photographic paper drawer mechanism 30.
31... Pull-out roller 44... Guide plate for loop formation 45... Space for loop formation β... Loop 55...
- Photographic paper drawer drive motor 56... Feed roller 57... Feed pressure roller 60... Upstream drive roller 61... Downstream drive roller 61A, 61B... Roller 61C...
-Pinching part 63...Drive motor 65...Character imprinting mechanism 66...Back printer 67...Cutter 68...Accumulation loop forming guide plate pA
...Accumulation loop 69...Discharge roller S1-S5...Sensor 70.71...Timing belt 72, 73...Pulley 75...Guide plate 76...Rail 77...Tension spring 78... Tongue piece 79... Followed roller 80... Follower 81... Cam plate 82.
...Operating rod 85...Cam plate 86...Roller 87...Insert member 88...Guide rail E1-E8...Restriction edge F...Slope + 1 Figure

Claims (1)

[Claims] 1) A pair of guide members that are provided to move toward and away from each other in order to guide both side edges of the photographic paper being conveyed, and a guide that regulates the spacing between the pair of guide members. a width regulating mechanism, the guide width regulating mechanism includes a spring that suppresses the pair of guide members in a direction in which they move toward and away from each other; It consists of a pair of opposing members facing each other in the width direction, and a spacing regulating member interposed between the pair of opposing members to regulate the spacing against the spring, and the opposing members and the spacing regulating member are arranged in the width direction. It is characterized by a combination of a cam edge in which a plurality of regulating edges located at different levels are sequentially formed in the length direction, and a follower that is relatively opposed to the cam edge. Photo printing device.