JPH02271339A - Film carrier - Google Patents

Abstract

PURPOSE:To prevent the damage and tear of a film edge by arranging the shaft of a pair of notch detecting pins in the direction of film thickness, energizing the pins in a direction to approach each other, and hemispherically forming the head of these pins. CONSTITUTION:The notch detecting pin 162 is provided on the downstream side of a printing optical axis so as to correspond with the both edges of a negative film F in its width direction. The pin 162 is cylindrical, and its end is hemispherically formed; the pin is rotatably inserted in a supporting pin 164. When an arm 14 is caused to approach a pedestal 12, a hook 114 engages with a pressure stand 48, therefore the film F is permitted to be inserted. Since the top of the pin 162 is covered with a thin wall part 18B at the time of inserting the film F, it can be smoothly inserted without the pin 162 interfering with the movement of the edge surface of the film F in the width direction. Even if the pressing stand 48 is closed with the pin 162 running on the edge surface of the film F, the running-on condition can be eliminated by pushing down the pressing stand 48. Therefore, troubles such as damage and tear of the film F do not occur.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film carrier provided with a detection pin for detecting a notch formed at an end in the film width direction.

[Conventional technology]

In photographic negative film, in order to display the image position, a semicircular notch is formed at the edge of the film in the width direction, corresponding to the center of the image. Therefore, the image position can be detected by inserting a detection pin provided on the film carrier into this notch.

This detection pin is generally cylindrical in shape, and is pressed against the edge of the film in the width direction by a biasing force.

However, the axial end of this detection pin or the film width direction end on the circumferential surface may ride on the film, and when the press plate presses the film in the thickness direction during baking, the film width direction end that rode on the detection pin may ride on the press plate. If it gets caught between the pin and the detection pin, it may bend and cause scratches or tears.

[Problem to be solved by the invention]

In consideration of the above-mentioned fact, the present invention aims to provide a film carrier that does not cause scratches or deformation of the film edge even when the film edge rides on the detection pin for detecting a notch.

[Means to solve the problem]

The present invention is a film carrier provided with a detection pin for detecting a notch formed at an end in the film width direction, in which the axial direction of a pair of detection pins arranged corresponding to both ends in the film width direction is These pins are characterized in that they are arranged in the thickness direction and biased toward each other, and that the heads of these pins are hemispherical.

[Effect]

Therefore, in the film carrier of the present invention, the detection pin is pressed against the edge of the film in the width direction and enters the notch to detect the image position. However, when the edge of the film in the width direction rides on the detection pin, the detection pin is Since the portion is hemispherical, the edge of the film slides against the hemispherical portion, and the situation where the film rides on the film is eliminated. This ensures that the film becomes flat during printing, and the edges of the film will not be pinched between the pressing plate and the detection pin and will not be damaged or torn.

[Embodiments of the invention]

Figure 1.2 shows a film carrier 1 to which the present invention is applied.
0 is shown. In this film carrier 10, an arm 14 is attached to a pedestal 12 that is fixedly installed in a printing device.
rotates and feeds the negative film F along the film transport path S toward the printing optical axis P in the direction of the arrow A indicating its longitudinal force.
Each image frame can be printed in sequence.

Further, the negative film F can be moved in the film width direction (direction of arrow B) and fed into the film transport path S if necessary.

The configuration of each component will be explained below.

The pedestal 12 is mounted and fixed on a printing device (not shown), and the operator faces the film carrier 10 in the direction of arrow B and performs the printing work. For this reason, a plurality of operation buttons 16 are provided on the pedestal 12 on the side closer to the operator.

A guide stand 18 is fixed to the upper surface of the central portion of the pedestal 12, and a recess 22 formed on the top surface of the guide stand 18 constitutes the main part of the film transport path S.

On the other hand, the arm 14 is pivotally supported on the pedestal 12 by a shaft 24, and when an opening 26A formed in a bracket 26 fixed to the tip engages with a latch 28 provided on the pedestal 12, as shown in FIG. The recess 22 is in a closed state. A compression coil spring 32 is provided on the base 12 in a direction that moves the arm 14 away from the base 12. When the arm 14 is in the closed state, the guide surface 48A of the press base 48 is pressed against the top surface 18A of the guide base I8, and the guide protrusion 64 of the press base 48 enters into the recess 22, causing the negative film F
The vicinity of both ends of the recess 22 is guided between the running surface and the running surface of the recess 22 .

As shown in FIG. 5, the latch 28 is pivotally supported on the pedestal 12 by a shaft 34. When the release button 36, which is partially exposed on the front surface of the pedestal 12, is pushed toward the burning optical axis P, the latch 28 is released. The opening 26A resists the biasing force of the return spring 38.
This allows the arm 14 to be opened (in the direction of arrow C). The release button 36 is fixed to one end of the slide plate 42, and is movable along the base 12 by passing a screw 44 into a long hole 42A formed in the slide plate 42.
is screwed onto the base 12. Since one end of this slide plate 42 corresponds to the launch 28, the release button 36
The operating force applied to the latch 28 is transmitted to the latch 28.

A press plate 46 is coaxially supported on the arm 14 .

This pressing plate 46 is sized to fit into the arm 14. This pressing plate 46 is biased upwardly by the compression coil spring 54 provided on the top surface of the pedestal 12, that is, in the direction of entering into the arm 14.

Further, a solenoid 56 is fixed to the suppressing plate 46, and one end of a movable shaft 58 passing through the solenoid 56 is fixed to the arm 14. The other end of the movable shaft 58 has a suction plate 62, and when the solenoid 56 is energized, the suction plate 62 is attracted to the solenoid 56.

Therefore, the solenoid 56 moves together with the pressure plate 46 from the state shown in FIG. 5 to the state shown in FIG.
It is urged in the direction of moving away from the arm 14 and approaching the pedestal 12 against the urging force of.

A printing opening 12A is formed in the pedestal 12 with the printing optical axis P as the axis, and a similar printing opening 48B is formed in the pressing base 48, the pressing plate 4G, and the arm 14. A pair of pressing plates 66 are attached to the pressing table 48 in correspondence with the printing opening 48B in order to press both widthwise ends of the negative film F toward the bottom surface of the recess 22 during printing. These pressing plates 6
6 are connected to each other by connecting pieces 66A as shown in FIG. When the press base 48 is in the closed state, both ends of the negative film F in the width direction are held against the bottom surface of the recess 22 with a weak force by the biasing force of the compression coil spring 67. It is supposed to be done.

Further, four pins 69 are passed through the tip of the press plate 46, and the tip of the compression coil spring 70 is biased in a direction to be pressed against the press plate 66.

These pins 69 transmit the biasing force of the compression coil spring 70 to the suppression plate 66 when the pressure plate 66 is lowered as shown in FIG.
2 to fix both ends of the negative film F in the width direction.

Rectangular openings 22A and 22B are formed in the bottom surface of the recess 22 in the pedestal 12, corresponding to the upstream and downstream sides of the baking opening 12A, and the feed roller 68.7 is pivotally supported inside the guide table 18.
2 protrudes into the film transport path S through these. These feed rollers 68, 72 are adapted to protrude into the recess 22 by an amount that is equal to or slightly larger than the bottom surface of the recess 22.

On the other hand, pressure rollers 78.82 are also pivotally supported within the pressure base 48, and when the arm 14 is closed, the feed rollers 68.72
It is pressed against the outer periphery of the These pressing rollers 78, 82 are pressed against the feed rollers 68, 72 by receiving the urging force of a compression coil spring 86 (not shown), and generate an urging force that clamps both ends of the negative film F in the width direction. .

Similarly, on the upstream side of the feed roller 72, rectangular openings 22C are provided near both ends of the film in the width direction, and the feed roller 88 is exposed. Similarly, a pressure roller 92 that is pressed against these feed rollers 88 is pivotally supported on the pressure base 48 . Further, these feed rollers 68, 72, and 88 are configured to rotate within the pedestal 12 by receiving the driving force of a motor (not shown).

Between the feed roller 68 and the feed roller 88, a protective glass 93 and a light source 94 (see FIG. 3) are installed in the width direction of the negative film F in correspondence with the barcode lines displayed near both ends of the negative film F in the width direction. It is embedded into the bottom surface of the recess 22 corresponding to the vicinity of both ends. A pair of sensors 96 for detecting the barcode B with a negative film F sandwiched between them and the light source 94 are fixed to the suppression table 48 at a distance WS. Further, on the upstream and downstream sides of these sensors 96, there are guide blocks 98 and 102 that are first guide parts.
are arranged so as to correspond to both ends of the negative film F in the width direction. That is, the distance between the pairs of guide blocks 98 and the distance 1 between the guide blocks 102; fkWG is set to be slightly smaller than the width WF of the negative film F, as shown in FIG. 3(A). Thus, when the negative film F is being conveyed, the negative film F is curled in the width direction such that the cross section in the width direction is bent.

In addition, in order to prevent the widthwise central part of the negative film F that has curled in the width direction from coming into contact with the recess 22 and the press base 48, the recess 22 and the press base 48 have a cutout relief part 1045 corresponding to the center of the film. 106 are provided.

Furthermore, the bottom surface of the recess 22 and the tip surface of the guide protrusion 64 are inclined at an angle θ with respect to a plane perpendicular to the optical axis P, as shown in FIG. The inclined surfaces 104A and 10 are parallel to each other when the arm 14 is closed so as to guide both ends of the negative film F.
6A and constitutes the second guide portion.

As a result, the negative film F is forcibly curled in the width direction as shown in FIG. 3, and the image forming surface, which is the middle part in the width direction, is not in contact with the guide surface, causing scratches on the image surface. Never. Furthermore, the photosensor 96A of the sensor 96 and the light source 94 for reading the barcode B can reliably correspond to the barcode B. That is, the barcode B is formed in advance at an accurate predetermined position from the widthwise end surface of the negative film F, and the sensor 96 is not made to follow the film width edge, but the film width edge is made to follow the guide block 98.102. and guide the light source 94 and sensor 96 to the block 98.10.
By arranging the bar code B at a predetermined relative position to the opposing surface of the bar code B, the bar code B can be read accurately.

FIG. 4 shows the arrangement of guide blocks 98, 102 at precise intervals and the sensor 96 and guide blocks 98, 102.
A configuration for appropriately arranging the relative position with the is shown.

A positioning block 114 is fixed to the suppressing table 48 with mounting screws 112.

Guide blocks 98 and 102, which are integrally connected in advance to both sides 114A of the positioning block 114 via a connecting portion 116, are fixed with screws 118, and a sensor 98 and a sensor 98 are fixed to the recess 114B formed in the positioning block 114. is fixed with screws 122.

Therefore, the distance between the side surfaces 114A and the recess 114B is
Pre-forming the spacing accurately in the WS ensures that the sensor 96, guide blocks 98 and 102 are simply fixed with screws, and that they are mounted at the correct spacing.

Incidentally, the guide blocks 98, 102 are formed with circular arc portions 98A1102A for accurately guiding the edges of the negative film F, so that the negative film F, which does not curl in the width direction near the upstream end of the film transport path S, can be narrowed. The guide blocks 98 and 102 can be smoothly guided to easily cause curling in the width direction.

As an example, the width dimension is 35 mm and the dimensional tolerance is +Q+nm.

When transporting a 35mm film at -0.1m+,
The gap @WG can be set to 34.7 mm±0.1 stroke.

If this dimension WG is 34.5 m or less, it will not be possible to transport the negative film F if its width is substantially increased by the splice SP for connecting multiple negative films F as shown in FIG. becomes.

As shown in FIG. 1, deep grooves 124 are formed in the recess 22 on the upstream and downstream sides of the light source 94, into which the tips of the guide blocks 98 and 102 enter when the arm 14 is closed.

Further, a pair of positioning plates 134 are fixed to the top surface 18A of the guide table with screws 132.

Circular holes 13 formed in these positioning plates 134
Reference numeral 6 is for inserting a device fixing pin 138 constituted by a press base 48.

These positioning plates 134 and positioning pins 138
is provided for accurately attaching the press base 48 to the guide base 18 at a predetermined relative position. That is, since the press base 48 is pivotally supported on the base 12 via the press plate 46 and the support shaft 24, it is difficult to accurately position the press base 48 with the recess 22 of the guide base 180. The relative position may shift due to opening and closing, which may make it impossible to convey the negative film F accurately or make it impossible for the sensor 96 to detect the barcode B. For this reason, when assembling, the press base 48 is temporarily fixed to the press plate 46 by lightly screwing the screw 52 into the press plate 46, and the press base 48 is moved into the recess of the guide base 18 as shown in FIGS. 5 and 7. 22, the guide protrusion 64 of the press base 48 and the recess 22 are made to correspond accurately, and then the arm 14 is opened as shown in FIG. 1, and the screw 52 is firmly screwed into the positioning plate. 134 is fixed with screws 132. Through this positioning operation, the pressing table 48 is accurately positioned and fixed to the guide table 18, and even if the supporting position of the pressing table 48 is slightly distorted due to deformation of each part due to multiple uses, the fifth.
When the arm 14 and the press base 48 are aligned with the guide base 18 as shown in FIG.
By inserting it inside, reliable positioning is possible.

Note that when the arm 14 is released to the state shown in FIG. 8 by operating the release button 36, the hook 144 pivotally supported by the pin 142 on the base 12 engages with the side surface of the press base 48 by the biasing force of the compression coil spring 146. to limit the opening angle of the suppression table 48.

Therefore, if the operator grasps the tip of the hook 144 and rotates it clockwise in FIG.
6 and arm 14 can be opened wide as shown in FIG. 1.10. The middle portion of the hook 144 is inserted into a rectangular opening 46A formed in the pressing plate 46 and a rectangular opening 14A formed in the arm 14.

Further, the tip of the intermediate portion of the compression coil spring 32 is brought into contact with the arm 14 through a circular hole 46B formed in the pressing plate 46.

As shown in FIGS. 2, 5, and 6, a pair of notch detection pins 162 are provided slightly upstream of the optical axis P, corresponding to both ends of the negative film F in the width direction. This notch detection pin 162 has a substantially cylindrical shape as shown in FIG. 6, and the end portion is formed in a hemispherical shape. Also, the support pin 164
is inserted into the notch detection pin 162 from the large diameter end, allowing the notch detection pin 162 to freely rotate around the support pin 164. The notch detection pin 162 has its large diameter end supported by the enlarged diameter II 64A of the support pin 164. The support pin 164 has a base 164B that is connected to the swing plate 16.
6 is pivotally supported at the longitudinally intermediate portion of the shaft.

A pin 168 protruding from one end of the rocking plate 166 is pivotally supported on the guide stand 18, and a limit switch 1 is attached to the tip.
72 is compatible. Further, these swing plates 166 are configured such that the notch detection pin 162 is pressed in the direction of the negative film F by a torsion coil spring 174.

The guide stand 18 has a notch 22D on the side and bottom of the recess 22.
By forming the notch detection pin 162, the notch detection pin 162 protrudes into the film transport path S and is pressed against the side surface of the negative film F.

As shown in FIG. 9, the notch portion 22D forms a thin wall portion 18B in the guide table 18, and the notch detection pin 162
The notch detection pin 162 covers the upper part of the support pin 164.
I try not to pull it out. Therefore, even when the negative film F is inserted into the film transport path S in the direction of arrow B in FIG. It can be brought inside.

Further, in the state shown in FIG. 8, insert the negative film F into the recess 22 in the direction of arrow B, and move the press base 48 to the state shown in FIG.
2, both ends of the negative film F in the width direction run onto the notch detection pin 162 or the circumferential surface of the notch detection pin 162, and the negative film F remains slanted as shown in FIG. Also, since the upper end of the notch detection pin 162 is formed into a spherical shape, the negative film F that has been pressed by the pressing table 48 easily twists the notch detection pin 162 against the biasing force of the coil spring 174. The negative film F can be moved in a direction away from the widthwise end of the negative film F, and there is no problem of bending the negative film F by sandwiching the widthwise end between the pressing table 48 and the notch detection pin 162.

Since these notch detection pins 162 are arranged slightly upstream of the optical axis P, they detect the image plane by entering the notch NT formed at the center of the image plane of the negative film F, This image plane can be accurately stopped at the optical axis P.

As shown in FIG. 2, a widened portion 182 is formed in a portion slightly downstream of the notch detection pin 162, in which the distance between the opposing surfaces of the recessed portion 22 is widened. This widened part 182
is formed over a length range toward the downstream side of the film transport path S, and can easily transport the negative film F even when splice tape SP is provided at the connection part of the negative film F. It is now possible to do so. In other words, when the splice tape NT is located within this range, there will be a large resistance to the operation of finely adjusting the image plane in the transport direction to accurately position it on the optical axis P, but the provision of the widening section 182 reduces the resistance. Smaller size makes fine adjustment easier.

In addition, a pressing plate 66 corresponds to both ends in the width direction of the negative film F disposed on the optical axis P, and presses the negative film F into the recess 22.
Since the negative film F is pressed against the bottom surface, the curl of the negative film F is eliminated, and the leading end of the negative film F is pressed against the printing opening 12A.
Although it does not get caught on the end surface, it is further widened! 1181
Since the width dimension of the recessed portion 22 is expanded by 82, curling of the negative film F can be eliminated even if there is a connection portion of the negative film F by the splice tape SP.

In this widened portion 182, the thickness of the splice tape SP is 0.
Since it is 1 mm or less, it is preferable that one side of the film is expanded by 0.2 mm or more more than other parts.

If it is 0.1 mm, the amount of width expansion is insufficient and the resistance to conveying the negative film F is large. Further, the length of the range in which this widened portion 182 is formed is such that the upstream end is downstream from the center of the notch detection pin 162, and the downstream end is located at the burning opening 1.
2A and the feed roller 72 is preferable. That is, if the downstream end of the widened portion 182 is upstream of the end of the printing opening 12A, the leading edge of the negative film F may interfere with the edge of the printing opening 12A, and if it is downstream of the feeding roller 72, the leading edge of the negative film F may interfere with the edge of the printing opening 12A. At 72.82, the posture of the negative film is unstable under the driving force, and meandering tends to occur in the film.

A film carrier 188 is attached to a position on the downstream side of the film withdrawal path S, which does not correspond to the pressing table 48. This film carrier 188 has an optical axis P in the direction of the arrow.
The negative film F conveyed past is reversed and turned over, and the negative film F is conveyed in a direction approximately 45 degrees from the direction of arrow A in the flat state shown in FIG. It is designed to send it back towards the direction.

As shown in FIGS. 11 to 13 (this film carrier 188 is designed so that the rectangular mounting portion 202 is latched to the guide stand 18 by a pair of screws 192 and 194 protruding from the bottom surface of the guide stand 18 on the downstream side). This mounting part 20
2, a lower guide plate 196 and an upper guide plate 198 disposed in the recess 22 of the guide stand 18 are extended. A notch 204 is formed in a side surface 202A of the mounting portion 202 to receive the screw 192, and a notch 206 is formed in a side surface 202B adjacent to this side surface 202A to receive the screw 192.
It is designed to accept 94 people. The entrance of the notch 204 is located at the entrance of the screw 19 when the mounting portion 202 is rotated around the screw 194.
2 is wide enough to be pulled out from the notch 204, and a semicircular recess 204A for locking the screw 192 is further formed in a part of the notch 204. This recess 204
The portion where A is formed is easily deformed elastically by the slit 204B, and this elasticity causes the screw 1 of the guide table 18 to
The mounting portion 202 is locked to the mounting portion 92.

The mounting portion 202 has a thick wall near the side surface 202C opposite to the side surface 202A, and a lower guide plate 196 is integrally protruded. This lower guide plate 196 is the upper guide plate 1
A guide portion 208 is formed on one side in the width direction of the negative film F, which is arranged parallel to the downstream side of the guide plate 98 and has a groove shape therebetween, and the lower guide plate 196 and the upper guide plate 1980 are connected at the width direction ends. The portions 212 are connected to each other to prevent the ends of the negative film F in the width direction from being removed.

In the guide portion 208, the opening side of the lower guide plate 196 and the upper guide plate 198 is a widened portion 208A, and the groove bottom is a narrow portion 208B.
It is said that Therefore, the narrow portion 208B is the negative film F.
A gap is provided between the widened portion 208A and the center portion in the width direction of the negative film F, thereby preventing damage to the image.

The upper guide plate 198 extends upstream in the conveyance direction of the negative film F and enters into the recess 22 , forming a guide portion 214 between it and the bottom surface of the recess 22 . Similar to the guide section 208, this guide section 214 also has a width dimension of approximately 1 of the negative film width dimension so as to correspond to only one side of the negative film F.
/2. Furthermore, a slope 198A is formed at the upstream end of the upper guide plate 198, and corresponds to a slope 64A formed at the downstream end of the guide protrusion 64.
As shown in FIG. 12, the upper guide plate 198 moves the guide protrusion 6 from the bottom of the recess 22 while the negative film F is being conveyed.
4, the negative film F being conveyed in the six directions of the arrows can be smoothly guided between the upper guide plate 198 and the recess 22.

As shown in FIG. 12.13, the guide portion 208 has a narrow width portion 2
08B communicates with the pedestal recess 22 to smoothly receive the negative film F from the recess 22.

In this way, the film carrier 188 of this embodiment is
Even if the negative film F that is conveyed past the optical axis P in the direction is curled in the longitudinal direction, the negative film F
The film can be reliably sent out in the direction of arrow C toward the operator, and the curled negative film F can be unintentionally moved toward the optical axis P.
There is no need to move in any direction. Moreover, since this film carrier 188 is compatible with only one side of the negative film F, the work is not limited to inserting the negative film F in the direction of arrow A, but also the work of loading the negative film F in the direction of arrow B toward the optical axis P. There is no hindrance.

In addition to feeding out the negative film F in the direction indicated by the arrow, this film carrier 188 also feeds out the negative film F in the direction indicated by the arrow.
It may also be one that sends it out in a range of 0°. In addition, this film carrier 188 can be easily removed by rotating the attachment part 202 around the screw 194, so it is easy to remove it when it interferes with the work, such as when continuously feeding out a long film. can be removed.

In this embodiment, the upper guide plate 1 of the film carrier 188
98 is approximately 1/2 of the film width, but in the present invention, it is preferably 1/3 or less of the film width. Further, the lower guide plate 196 may be extended to cover the entire area of the negative film F by extending the widening extension portion 19'6A, as shown by imaginary lines in FIG. 11.13.

Next, the operation of this embodiment will be explained.

When the operator approaches the arm 14 from the state shown in FIG. 1 to the base 12, the hook 144 engages with the pressing base 48, resulting in the state shown in FIG. 8. In this state, the negative film F is
It can be inserted in the direction of arrow B in the figure. The negative film F inserted in the direction of arrow B is accommodated in the recess 22, but since the upper part of the notch detection pin 162 is covered by the thin part 18B at the time of insertion, the end face in the width direction of the negative film F is Movement is not hindered by the notch detection pin 162 and can be inserted smoothly.

Further, even when the press base 48 is closed with the end surface of the negative film F riding on the notch detection pin 162 exposed to the recess 22 through the notch 22D, the upper end surface of the notch detection pin 162 remains spherical. Since the pressure base 4
8, the negative film F separates the notch detection pins 162 from each other and the riding state is eliminated, so that the negative film F does not suffer from defects such as scratches or bends. Also film carrier 1
Since the upper guide plate 198 is disposed only on the back side of the film transport path S far from the operator, the negative film F can be easily inserted into the film transport path S. In this state, the guide blocks 98 and 102 are not inserted into the deep groove 124 of the pedestal 18, so the negative film F is in the recess 22 wider than its width and is not curled in the width direction.

When the press base 48 is further pushed down from the state shown in FIG. 8, it becomes the state shown in FIG. 5, and the latch 28 engages with the opening 26A. In this state, the upper part of the recess 22 is closed by the suppression table 48, so the next negative film F is not transferred from the direction of arrow B, but from the first
It can be inserted into the film transport path S from the direction indicated by the arrow in the figure. Near the printing optical axis P, the pressing plate 66 is lightly pressed against the bottom surface of the recess 22 by the biasing force of the compression coil spring 67, but this biasing force is weak and does not prevent the negative film F from being fed in the direction of arrow A. There isn't.

Also, in this state, the guide blocks 98 and 102 are inserted into the deep groove 124 of the pedestal 18, so the recess 22 is inserted in the direction of arrow B.
The negative film F stored in the guide block 98
．． 102 into the deep groove 124, the circular arc portion 98
A and 102A apply a compressive force in the width direction to the negative film F so that the width end of the film is accurately inserted between the guide blocks 98 and 102, thereby causing a width direction curl as shown in FIG. 3(A). Further, when the negative film F is inserted in the six directions of arrows after the guide protrusion 64 is inserted into the recess 22 as shown in FIG.
Guided by 8A and 102A, guide block 98.102
It is inserted between the edges and curls in the width direction in the same way.

By the rotation of the feed rollers 68, 72, 88, the negative film F is conveyed by an arbitrary amount and a desired image frame is placed on the optical axis P. In this case, by reading the barcode B of the negative film F, it is possible to stop any image frame on the optical axis P or to modify the printing conditions for the image frame stopped on the optical axis P. Here, the negative film F is forced to curl in the width direction by the guide blocks 98 and 102 in a direction in which both ends of the width direction approach each other, and as shown in FIG. Since the front and back surfaces of the barcode are held between the inclined surfaces 104A and 106A, the barcode B reliably corresponds to the light source 94 and the sensor 96, and is accurately read by the sensor 9B. Further, since the image area located at the middle part in the width direction of the negative film F while being conveyed is in a non-contact state with the guide surface due to the notch relief parts 104 and 106, the image will not be damaged.

Furthermore, as shown in FIG. 2, the notch detection pin 162 is biased in the direction of entering into the notch NT of the negative film F by the biasing force of the torsion coil spring 174, so that the notch detection pin 162 is biased in the direction of entering into the notch NT of the negative film F by the biasing force of the torsion coil spring 174. , the film notch NT is detected by the limit switch 172, and the subsequent feed roller 68.
By controlling the feed amount of 72.88, the image plane is reliably aligned and stopped on the optical axis P.

In particular, since the widened portion 182 is formed on the downstream side of the optical axis P, it is possible to accurately stop the negative film F at the optical axis P position or when correcting the amount of movement by manually feeding the negative film F. Positioning is possible. That is, negative film F
If the splice tape SP is present at the connection part of the splice tape SP, the frictional force between the splice tape SP and the side surface of the recess 22 will increase when stopping the image frame immediately after the splice tape SP has been attached onto the optical axis P. Although this will hinder fine adjustment of conveyance, this widened portion 182
The image can be reliably stopped on the optical axis P since it smoothly guides even the portion where the width dimension substantially increases due to P.

At the time of seizure, the adsorption plate 62 is attracted by the excitation of the solenoid 56, so that the pressing plate 46 is pressed into the recess 22 as shown in FIG.
Both widthwise ends of the negative film F located on the optical axis P are pressed against the bottom surface of the recess 22 with a strong urging force. Here, the image is printed onto photographic paper (not shown) using printing light from a light source (not shown).

When the press plate 46 is pressed down during printing, the negative film F is already placed flat on the bottom surface of the recess 22, so that the negative film F will not be damaged or bent.

When the burning is completed, the energization of the solenoid 56 is stopped, and
The pressing plate 46 rises to the state shown in FIG. 5, and the pressing blade by the pressing plate 66 becomes weaker, so that the negative film F is again sent out in the six directions of the arrows by the driving force of the feeding rollers 68 and 72. Therefore, negative film F is film carrier 18
8, lower guide plate 196, upper guide plate 19
8, the film is reversed, the direction is changed, and the negative film F is sent out towards the operator's hand in the direction of the arrow, so that the negative film F does not inadvertently return to the vicinity of the optical axis P due to longitudinal curling. The operator can quickly take out the negative film F and prevent it from being scratched. This film carrier 188
Even when the negative film F passes through the guide section 208
Since the narrow portion 208B contacts the film edge, the intermediate portion in the width direction of the film is separated from the widened portion 208A, thereby preventing the image forming surface of the negative film F from being scratched.

Although the above embodiment shows a configuration in which the notches NT are formed at both ends of the negative film F in the width direction, it is also applicable even if the notches NT are provided only at the ends of the negative film F in the width direction. be.

〔Effect of the invention〕

Since the present invention has the above structure, it has an excellent effect of preventing the film edge from being pinched between the detection pin and the suppression plate and causing scratches or deformation.

[Brief explanation of drawings]

Figure 1 is a perspective view showing the open state of the film carrier to which the present invention is applied, Figure 2 is a plan view showing the main parts of Figure 1, and Figures 3 (A) and (B) are the same as Figure 2. ] - ■ Cross-sectional view of the film clamping state and open state corresponding to the cross section, Figure 4 is an exploded perspective view showing the mounting state of the sensor and guide block, Figure 5 is equivalent to the V-V line cross section of Figure 2 6 is an exploded perspective view showing the mounting state of the notch detection pin, FIGS. 7 and 8 are operation diagrams of FIG. 5, FIG. 9 is a partially enlarged view of FIG. 8, and FIG. The figure is the operating diagram of Fig. 5, Fig. 11 is a perspective view showing the film carrier, and Fig. 12 is the same as Fig. 2 xn-x.
(2) A front view of the film carrier seen from the line direction; FIG. 13 is a left side view of the film carrier in FIG. 12; F... Negative film, 10... Film carrier, NT... Notch, 162... Notch detection pin, 164... Support pin, 172... Limit switch, 174... Torsion coil spring.

Claims (1)

[Claims] (1) A film carrier equipped with detection pins for detecting notches formed at the ends in the film width direction, where the axial direction of the pair of detection pins arranged corresponding to both ends in the film width direction is the thickness of the film. A film carrier characterized in that these pins are arranged in a direction and biased toward each other, and the heads of these pins are semispherical.