JPS63291047A - Negative carrier packaging device - Google Patents

Abstract

PURPOSE:To attain the accurate locating and the optional movement of negative carrier by making the negative carrier and an engaging means appear on a base plate. CONSTITUTION:In case of printing work, a negative film is held between a lower mask plate 96 and an upper mask plate 98 and the negative carrier 16 is mounted on the base plate 14. In this case, by moving the negative carrier 16 in a direction shown with an arrow A locating projections 68 and 70 which project above the base plate 14 are mounted by making the inner opposite parts correspond to the outer peripheries of the locating projections with the energizing force of a compressing coil spring 82. In case of executing a trimming printing, as soon as picture information is detected, a solenoid 90 is actuated and an ascendent and descendent plate 66 becomes in an descending state, so that the locating projections 68 and 70 move downward and there are no projections on the base plate 14. Thus, the negative carrier can be accurately located and it can be moved to an optional position in need.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a negative carrier mounting device for mounting a negative carrier loaded with negative film onto a base plate, which is used in a photographic printing device capable of changing the printing magnification. .

[Background Art] In a printing device that loads negative film into a negative carrier and attaches the negative carrier onto a base plate for printing, it is necessary to devise a method for attaching the negative carrier to a predetermined position on the base plate. become. That is, by accurately arranging the negative film coaxially with the printing optical axis and automatically measuring the density of the negative film using an optical system and an image sensor, efficient printing work becomes possible. For this purpose, it is preferable to provide an engaging means between the negative carrier and the base plate for accurately positioning the negative carrier.

However, this holding means hinders the free movement of the negative film during trimming printing in which a portion of the negative film is printed at high magnification.

The present invention takes the above facts into consideration, and provides a negative carrier loading device that can accurately position a negative carrier at a specific position on a base plate, and can also move the negative carrier arbitrarily on the base plate when necessary. or purpose.

[Summary and operation of the invention] The first invention of the present application is a negative carrier mounting device for mounting a negative carrier loaded with a negative film onto a base plate and performing printing, the base plate having a negative carrier and a negative carrier. It is characterized by the fact that the securing means can appear and disappear.

A second invention of the present application is a negative carrier mounting device for mounting a negative carrier loaded with a negative film onto a base plate-1- for printing, the base plate having a means for engaging with the negative carrier and It is characterized in that the negative carrier type detection means has an appearance +if function.

Therefore, in the present invention, if the negative carrier loaded with negative film is mounted on the base plate with the holding means protruding from the base plate, the negative carrier can be accurately held by the holding state between the negative carrier and the holding means. It can be quickly installed in the mounting position and ready for use. Therefore, the density of the image can be automatically measured through the negative film in the negative carrier.

Further, in the case of trimming baking, etc., the retaining means is inserted into the base plate so that the negative carrier is not engaged with this engaging means. As a result, the negative carrier can be freely moved to any arbitrary position on the base film 1, and it is possible to perform rimming and burning at any arbitrary position on the negative film I.

[Embodiment of the Invention] FIG. 2 shows an upright photographic printing apparatus 10 to which an embodiment of the invention is applied. A negative carrier 16 can be mounted on a base plate 14-) of the housing 12, and a negative film 18 is loaded into the negative carrier 16.

Inside the housing 12, a light source 20, an MMC filter 21, a mirror 21A, and a light diffusing cylinder 22 are provided coaxially with the negative carrier 16, and the printing light is sent to the photographic paper 28 through a lens 24 for printing material and a shutter 26. ing. This housing 12 is attached to a part of a belt 34 that is passed around pulleys 30 and 32, and is movable in the vertical direction in FIG. 2 by receiving the driving force of the pulleys 30 and 32 or a motor (not shown).

The printing lens 24 is attached to a turret 38, and the turret 38 is attached to the housing 12 by a screw shaft 36.
It is mounted on a lifting platform 40 that is pivotally supported. The turret 3 is driven by a motor 41 attached to this lifting platform 40.
By rotating the lens by 8 degrees, other printing lenses can be placed on the optical axis. Further, the lifting table 40 is prevented from rotating, and when the screw shaft 36 is rotated by the driving force of a motor (not shown), it moves downward together with the turret 38, so that the conjugate length of the printing lens 24 can be changed. There is.

A reflecting mirror 42 is disposed within the housing 12 and is slidable in the horizontal direction. A portion of the mirror 42 is also attached to a belt 44. The belt 44 is wound around pulleys 46 and 48, and by receiving the rotational force of these pulleys 46 and 48 or a motor (not shown), the mirror 42 moves in the left-right direction in FIG. (It has become a Noh performance.

This mirror 42 reflects the printing light from the light source 20 and sends it to two image sensors 56 and 58 via a zoom lens 52 and a beam splitter 54. A negative image of a size corresponding to the negative size is formed by the zoom lens 52 on the image sensors 56 and 58, and each point of this negative image is scanned and photometered.

Base plate 1 as shown in FIG. 1 and FIGS. 3 and 4.
4 has a rectangular opening 60 formed coaxially with the printing optical axis. A pair of through holes 62 and 64 are formed corresponding to the square portions of the rectangular opening 60. The long through hole 62 has an L-shape bent at a corner corresponding to the corner of the rectangular opening 60 .

Lifting plate 6 located below the base plate 14
A pair of positioning protrusions 68, 70 corresponding to the elongated through holes 62, 64 are fixed to each of the holes 62, 64, respectively. These positioning protrusions 68,70 project upwardly through the through holes 62,64 through the elongated through holes 62,64 when the elevating plate 66 is in the raised state, and enter downwardly from the surface of the base plate 14 when it is in the lowered state.

The elevating plate 66 has a rectangular opening 6 in the base plate 14.
An inter-rectangular lower 2 corresponding to 0 is formed. Further, a block 74 is protruded from the vicinity of both measuring portions of this inter-rectangular lower lower 2, and a guide rod 76 protruding downward from the base plate 14 passes through this block 74. Therefore, the elevating plate 66 can move up and down below the base plate 14 along this guide rod 76.

A compression coil spring 82 is interposed between the lower end of the guide rod 76 protruding from the block 74 and a bracket 80 protruding from the housing 12.
6 is urged to rise toward the base plate 14.

A connecting plate 86 which is pivotally supported by screws 84 on the side surface of the elevating plate 66 is pivotally supported by an actuator 92 of a solenoid 90 via a pin 88 .

This actuator 92 is attached to the housing 12, and an excitation force is generated by energization from a control device (not shown), and the actuator 92 is pulled downward together with the lifting plate 66 against the biasing force of the compression coil spring 82. There is.

Therefore, when the actuator 92 is operated, the elevating plate 66 is in a lowered state.

As shown in FIGS. 5 and 6, the negative carrier 16 has a lower mask plate 96 and an upper mask plate 98 connected to each other by a hinge too, 102 at one end. The rectangular openings 104 formed in the lower mask plate 96 and the upper mask plate 98 form a mask for the negative film 18 which is held between the lower mask plate 96 and the upper mask plate 98.

A positioning projection 106 whose longitudinal axis is arranged in a rectangular shape projects from the lower mask plate 96 .

Two corners 106A, 10 of this positioning protrusion 106
6B corresponds to a pair of corners 68A and 68B of the positioning protrusion 68 of the elevating plate 66. Therefore, when the negative carrier 16 is slid on the base plate 14 in the direction of arrow A, the positioning protrusion 106 (7) and the corner 106
A and 106B correspond to the corners 68A and 68B of the positioning protrusion 68 projecting onto the base plate 14, so that the negative film 18 can be accurately positioned on the optical axis. In this case, both sides of the positioning protrusion 106 come into contact with the opposing surface of the positioning protrusion 70 to restrict movement in the direction perpendicular to the arrow A direction.

Further, the positioning protrusion 106 has a vertical dimension H equal to a horizontal dimension, and is square as seen from the optical axis as shown in FIG. Therefore, when this negative carrier 16 is rotated 90 degrees around the optical axis and mounted on the base plate 14 in the direction of arrow B, the corner 106C and the corner 106
A, or the corner 106B and the corner 106D are the corner 68
A and 68B are positioned so that an image rotated by 9 degrees can be printed onto the photographic paper 28.

Sensors 110 and 112 for detecting the type and insertion direction of the negative carrier 16 are attached to the elevating plate 66. As shown in FIGS. 1 and 7.8, L-shaped brackets 114 and 116 are provided on the lower surface of the lifting plate 66.
are fixed to the lower surface of the lifting plate 66, and three light reflection sensors 118A, 118B, and 118C are attached to these, respectively.
and light reflection sensors 120A, 120B, and 120C are installed horizontally in line.

Further, three rocker arms 126A, 126B, 126C and three rocker arms 128A, 128B, 128C are pivotally supported on the lower surface of the elevating plate 66 by a pair of rhombic brackets 122, 124 and a bin 125, respectively. The tips of these rocker arms protrude upward through the openings 134 of the elevating plate 66 due to the biasing force of leaf springs 132 attached to the L-shaped brackets 122 and 124, and when the elevating plate 66 is in the raised state, one of the elongated through holes 62 of the base plate 14 The negative carrier 16 is inserted into the negative carrier 16 in the direction of the arrow A, and comes into contact with the positioning projection 106 of the negative carrier 16 inserted in the direction of the arrow A. Each rocker arm can rotate counterclockwise in FIG. 7 by contact with the positioning protrusion 106, and the reflective element 13
6 is attached.

Here, the negative carrier 16 is connected to the rocker arms 126B, 12
6c and one of the rocker arms 128B, 128C, the type of the negative carrier 16 can be displayed by cutting out a part of the positioning protrusion 106 corresponding to either the rocker arm 128B or 128C. Therefore, when the negative carrier 16 with this indication is attached to the base plate 14'' in the direction of the arrow or in the direction of the arrow B, the rocker arms 126B, 126C, 128B, 1
28C, when one of them rotates, the light reflection sensor detects these and can determine the type of negative carrier 16. Therefore, the notch of the positioning protrusion 106 should be formed according to the size of the negative film to be mounted. For example, the photo printing apparatus 10 can detect the type of negative film loaded.

Note that the negative carrier 16 is inserted into the rocker arm 126A until the stopper is inserted, and the negative film is correctly aligned with the optical axis.
It is designed to detect that it has been placed. Further, the rocker arm 128A is provided to detect whether the negative carrier 16 is loaded in the direction of arrow B or in the direction of arrow B. Therefore, the positioning protrusion 106 detects whether the negative carrier 16 is loaded in the direction of arrow A. A notch 106E is formed to rotate the rocker arm 128A when it is mounted in the direction of arrow B without being actuated.

Note that the guide pin 140 protrudes from the lower mask plate 96 and enters the opening 98A of the upper mask plate 98, so that the lower mask plates 96 and -1-mask plates 1 to 98 are maintained in close contact with each other. It has become.

Further, the negative carrier 16 is connected to a pressure plate 15 as shown in FIG.
0 and the old force of the compression coil spring 152 are pressed against the base plate 14.

Next, the operation of this embodiment will be explained.

During the printing operation, the negative film 18 is held between the lower mask plate 96 and the lower mask plate 98, and the negative carrier 16 is mounted on the base plate 14.

In this case, when the negative carrier 16 is moved in the direction of arrow A or arrow B, the biasing force of the compression coil spring 82 causes the positioning protrusions 68 and 70 protruding onto the base plate 1-14 to move.
Since the inner facing portion corresponds to the outer periphery of the positioning protrusion 106, the negative carrier 16 can be mounted accurately. When the insertion amount of the positioning protrusion 106 is limited by the positioning protrusion 68, the negative film 18 is placed on the optical axis 1-.

When a photometry button (not shown) is pressed, image information of the negative film 18 is detected. That is, as shown in FIG. 2, the mirror 42 is placed on the optical axis -1- by driving the belt 44, and the turret 38 is rotated by driving the turret 41, and the openings 39 provided in the turrets 1 to 38 are opened. It corresponds to this optical axis.

The printing light emitted from the light source 20 is diffused by the light diffusion tube 22 and illuminates the negative film 18. The light transmitted through the negative film 18 passes through the opening of the turret 38 and is laterally reflected by the mirror 42. Further, the reflected light passes through a zoom lens 52, is split by a beam splitter 54, and enters image sensors 56 and 58, respectively. A negative image of a size corresponding to the negative size is formed on these image sensors 56 and 58 by the zoom lens 52, and each point of this negative image is subjected to scanning photometry.

The density of each point of the negative image is measured by the image sensors 56 and 58, and the printing exposure amount is calculated based on the obtained purulence value. In this case, all the light reflection sensors 1lBB, 11
8c and light reflection sensors 120B and 120C, the type of negative carrier 16 is determined, so if a negative film of a specific size is loaded into a specific negative carrier in advance, the size of the negative film will be determined and accurate printing will be possible.
1 exposure fee is calculated.

During printing, the turret 38 is rotated by the drive of the motor 41, and the printing lens 24 corresponding to the printing magnification is inserted on the optical axis. At the same time, the mirror 42 moves rightward in FIG. 2 and is retracted from the printing optical axis. Here, the shutter 26 is opened for a period of time corresponding to the printing exposure amount, and the image on the negative film is printed onto the photographic paper 28.

When changing the burning magnification, a burning magnification designation key (not shown) is operated. The screw shaft 36 is rotated in accordance with the specified printing magnification and the turret 38 is moved downward, and the belt 34 is driven to move the housing 12 up and down by a predetermined amount to connect the negative film 18 and the printing lens 24. As the position changes, the conjugate length of the printing optical path also changes.

Further, when the printing magnification cannot be changed by the vertical movement of the printing lens 24, for example, when trimming printing is performed, a different printing lens on the turret 38 is arranged on the optical axis. In this case, the solenoid 90 is activated when image information is detected, and the elevating plate 66 is in a lowered state, so that the positioning protrusions 68 and 70 are aligned with the base plate 14.
Move from top to bottom. For this reason, the base plate 141
There are no protrusions and the negative carrier 16 can be moved freely. Therefore, the operator can move the negative carrier 16 to any desired position and perform trimming printing of any desired image portion.

In addition, in the operation mentioned above, when the rocker arm 126A detects that the negative carrier 16 is correctly loaded onto the optical axis, the image information may be automatically detected. When finished, the positioning projections 68, 70 may be automatically lowered.

[Effects of the Invention] As explained above, the present invention is a negative carrier mounting device for mounting a negative carrier loaded with a negative film onto a base plate and performing printing, and the base plate has a means for securing the negative carrier to the base plate. Since the negative carrier is characterized in that it can be retracted and retracted, it has the excellent effect of accurately positioning the negative carrier and being able to move it to any position as required.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a negative carrier mounting device to which the present invention is applied, Fig. 2 is a longitudinal sectional view of a printing device to which the present invention is applied, and Fig. 3 is a plan view of the base plate viewed in the optical axis direction. , Fig. 4 is a bottom view of Fig. 3, Fig. 5 is a front view showing the negative carrier, Fig. 6 is a right side view of Fig. 5, Fig. 7 is a sectional view taken along the line ■-■ of Fig. 3, FIG. 8 is a bottom view of FIG. 7. DESCRIPTION OF SYMBOLS 10...Photographic printing device, 14...Base plate, 16...Negative carrier, 18...Negative film, 28...Photographic paper, 62.64...Through hole, 66...Elevating plate. 68.70... Positioning protrusion, 92... Actuator, 96... Lower mask plate, 98... Upper mask plate, 106... Positioning protrusion,

Claims (2)

[Claims] (1) A negative carrier mounting device for mounting a negative carrier loaded with negative film onto a base plate for printing, characterized in that a means for engaging with the negative carrier is retractable from the base plate. Negative carrier mounting device. (2) A negative carrier mounting device for mounting a negative carrier loaded with negative film onto a base plate and performing printing, wherein a means for engaging with the negative carrier and a means for detecting the type of negative carrier are retractable from the base plate. A negative carrier mounting device characterized by: