JPH05188483A - Negative film supplying device and housing unit - Google Patents

Abstract

PURPOSE:To improve workability for stocking negative films in a laminated state in advance, and simultaneously, to easily charge the negative films in the stocked and laminated state to the existing printer. CONSTITUTION:A negative film supplying device 10 is provided with a table 20 covered with a vertical wall 18 in a part of the periphery of the table 20. On the table 20, a housing recessed part 21 sank, against a main table 22, is formed, and spreading by the stiffness of the negative film 12 is restrained by the vertical wall 18, to surely house the laminated negative films 12. The table 20 can be attached/detached to/from the main table 22. The large number of the negative films 12 after being developed, are made into a laminated and bent state, in another place, that is, unitized so as to place the negative films 12 on the housing recessed part 21 of the table 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a negative film supply device for supplying a plurality of negative films in sequence to a printing device and a negative film accommodation unit.

[0002]

2. Description of the Related Art When printing a photographic printing paper or the like using a negative film after development, set the negative film on the negative carrier one by one and operate the print operation key to control the printing light from the light source. It is designed to be exposed on photographic paper through a negative film. Therefore, when sequentially printing a plurality of negative films, the operator needs to operate the set of negative films and the print operation key each time.

When a large number of negative films are continuously printed, the negative films are connected in series with an adhesive tape or the like and wound on a reel, and the reel is loaded into a printing apparatus to automatically perform all printing. The negative film may be printed. However, after printing, it is necessary to cut the connected negative films separately and compare them with the printing, or it may cause damage to the negative film.

Therefore, it is considered that a plurality of negative films are laminated and held, the driving roller is brought into contact with the negative film of the outermost layer, and the negative films are sequentially conveyed by the driving force of the driving rollers. ing. As a result, the negative films can be automatically sent out sequentially to the printing apparatus without connecting them in series, and the above problems can be solved.

By the way, although the leading end portions of the laminated negative films are held, it is not necessary to hold the middle portion and the rear end portion in particular, so that a plurality of guide rollers and the like are provided on the main table of the printing apparatus. The guide roller prevents the variation in the wound state.

[0006]

However, in the case of the above structure, all the work such as the work of laminating the negative film and the work of holding the leading end of the negative film are performed on the printing apparatus. Therefore, the negative film cannot be laminated in advance and the workability is poor.

Further, it is necessary to provide a guide roller and the like on the main table of the printing apparatus, and the existing printing apparatus must be improved. Further, this guide roller becomes an obstacle when printing the negative films one by one.

In consideration of the above facts, the present invention makes it possible to stock negative films in a laminated state in advance so that workability can be improved, and at the same time, the stock negative films in the laminated state can be stored in an existing printing apparatus. It is an object to obtain a negative film supply device and a storage unit that can be easily loaded into.

[0009]

According to a first aspect of the present invention, there is provided a negative film supply device for sequentially supplying a plurality of negative films to a printing device, wherein the rear portions of the plurality of negative films are laminated. A table formed with an accommodating recess for accommodating, a holding member for holding at least the vicinity of the tip of the negative film, and a negative member by applying a tensile force in the longitudinal direction to the tip of the outermost layer of the negative film held by the holding member. And a feeding means for sequentially feeding the film to the printing apparatus along the guide path.

The invention according to claim 2 is characterized in that an inclined surface for ascending the negative film is formed from the accommodation recess to the guide path.

According to a third aspect of the present invention, a negative film for use in a negative film supply device is provided in which a plurality of negative films are laminated and the vicinity of the leading end of the film is held and sequentially supplied to the printing device from the outermost layer side. The accommodation unit of
A storage recess is formed to store a middle portion and a rear end portion of a plurality of negative films in a stacked state, and the storage recess can be carried in the storage state of the negative films and can be attached to and detached from a predetermined position of the printing apparatus. I am trying.

[0012]

According to the first aspect of the invention, since the table is formed with the accommodating recess for accommodating the negative film, the laminated negative film can be accommodated and held without being broken. A holding member is arranged at a position continuous with the accommodating recess, and the leading end of the negative film is held in a state of being laminated on the holding member. The negative film held by the holding member is sequentially sent to the printing apparatus from the outermost layer by the sending-out means, and the baking process is performed, so that a plurality of negative films can be continuously processed and workability is improved. Good.

In this case, since the intermediate portion and the rear end portion of the negative film are securely held in the accommodating concave portion, there will be no displacement.

According to the second aspect of the invention, a step is formed between the accommodating recess and the negative film guide path. The transport path from the bottom of the accommodating recess to the holding member is an inclined surface so that the transport of the negative film is not hindered by this step. As a result, the negative film can be smoothly delivered to the holding member.

According to the third aspect of the invention, the accommodating unit is provided with the accommodating recess, and the negative films can be accommodated in a laminated state. Further, since the concave portion for accommodating the negative film is unitized, the negative film can be continuously conveyed only by mounting the accommodating unit without improving the existing printing apparatus.

[0016]

【Example】

[First Embodiment] FIG. 1 shows a negative film supply device 10 to which an embodiment of the present invention is applied.

The negative film supply device 10 is provided adjacent to a printing device 14 which transmits an image recorded on the negative film 12 and prints it on photographic paper. The printing apparatus 14 is provided with a negative film guide path 16, and the negative film 12 is conveyed in the guide path 16 onto the printing optical axis L.

The negative film supply device 10 is mounted so as to be continuous with the upstream end of the guide path 16.

The negative film supply device 10 is provided with a table 20 in which a part of the peripheral edge is covered with a vertical wall 18 and an accommodating recess 21 is formed. The bottom surface of the accommodating concave portion 21 is positioned lower than the main table 22 on which the printing device 14 is placed, and the vertical wall 18 prevents the negative film 12 from expanding due to the strength of the waist. Twelve can be accommodated. Although not shown, an openable / closable lid may be attached to the opening of the accommodation recess 21.

The table 20 of the negative film supplying apparatus 10 includes a main table 22 together with a holder 24 described later.
The table 20 is attached to the side of the main table 22 so that the leading end of the negative film 12 held by the holder 24 is located on the most upstream side of the guide path 16. There is.

That is, this negative film supply device 10
Can be attached to the existing printing apparatus 14, and may be attached and detached as necessary.

The negative film 12 is arranged on the accommodating recess 21 so that the width direction thereof is vertical. In order to maintain the curved state of the negative film 12 and to maintain the standing state thereof, the guide roller 26 is axially supported at an appropriate position on the accommodating recess 21 so as to be freely rotatable. There is.

An inclined surface 28 is formed on the bottom surface of the accommodating recess 21 from the front side to the rear side in FIG. 1, and the negative film 12 in the table 20 is guided by the guide rollers 26.
The inclined surface 28 rises to the same height as the main table 22 and is conveyed to the guide path 16. The direction in which the negative film 12 is conveyed by the inclined surface 28 and the direction in which the negative film 12 is conveyed by the guide path 16 are perpendicular to each other. Therefore, when the negative film 12 climbs up the inclined surface 28, the transport direction is changed to a substantially right angle direction.

A holder 24, which is a holding member for holding the leading end of the negative film 12, is disposed at the upstream end of the guide path 16.

As shown in FIG. 2, the holder 24 includes a base portion 30 corresponding to one end surface of the negative film 12 and guide portions 32 and 34 extending from both widthwise ends of the base portion 30 in the negative film thickness direction. It is composed of and, and has a roughly U-shape as a whole.

As shown in FIG. 3, this holder 24 is
A pin 36 erected from the intermediate portion on the back surface side of the base portion 30 penetrates the rotating arm 38, and a stopper 40 is fixed to the tip portion. A compression coil spring 42 is interposed around the pin 36 to urge the holder 24 in a direction of separating from the rotating arm 38. As shown in FIG. 3, one end of the rotating arm 38 is fixed to a rotary shaft 44 having an axis parallel to the longitudinal direction of the negative film 12 (the direction perpendicular to the plane of FIG. 3).

The rotating shaft 44 is connected to a motor 48 via an endless belt 46 to receive a rotational driving force, and as shown in FIG. 3, the base 30 is positioned at a vertical position with respect to the guide path 16 which is a retracted position. Can be rotated in the direction of arrow A from the position parallel to the guide path 16 which is the guide position.

As shown in FIG. 2, the width W of the negative film 12 in the width direction of the base portion 30 is narrowed at a predetermined ratio with respect to the width direction size of the negative film 12 (35 mm as an example) (30 mm as an example). ).

The guide portion 34, which is the lower side when the base portion 30 of the holder 24 is in the vertical position, is the base portion 30.
The included angle is 80 degrees. In other words, the guide portion 34 is inclined inward at an angle θ ₁ of 10 degrees from the right angle position of the base portion 30.

The guide portion 32, which is on the upper side when the base portion 30 of the holder 24 is in the vertical position, is the base portion 30.
And the included angle is 75 degrees (the angle θ ₂ from the position perpendicular to the base 30 is inclined 15 degrees inward).

The base portion 3 of the holder 24 configured as described above
At 0, the negative film 12 is held in a laminated state. Here, since the maximum spacing between the guide portions 32 and 34 is narrower than the width dimension of the negative film 12, the negative film 12 is sandwiched between the guide portions 32 and 34, and the width direction intermediate portion is included. Are separated from the base portion 30, and the intermediate portions in the width direction are held in an arc state in which they are separated from each other.

At this time, the bending radius of the negative film 12 to be laminated gradually decreases from the first layer to the final layer due to the inclination of the guide portions 32 and 34, so that the perforations of the adjacent negative films 12 are also separated. Will be. That is, generally, there is a burr at the time of perforation at the peripheral edge of the perforation, and in this embodiment, the burr is prevented from interfering with the perforation of the adjacent negative film 12.

In the work of holding the negative film 12 in a curved state between the guide portions 32 and 34 of the holder 24, first, apply one end portion in the width direction of the negative film 12 to the lower guide portion 34, and then the guide portion. The other end portion in the width direction of the negative film 12 is made to enter the inside of the guide portion 32 in a state where the negative film 12 is pushed inwardly and then curved. In this case, since the negative film on the side that has entered later has a large inclination angle of the guide portion 32, the negative film can be guided by the guide portion 32 and enter the depth of the guide portion 32. As described above, when the negative film 12 is loaded, the widthwise both ends of the negative film 12 are guided by the guide portions 3.
Since it is possible to enter the inner part of the second and the second parts 34, the centers of the laminated negative films 12 can be aligned in a plan view.

When the holder 24 is in the parallel position, as shown in FIG. 1, the negative film 12 is three-dimensionally bent in the middle portion of the holder 24, and the vicinity of the leading end is parallel to the guide path 16.

In this parallel position, the leading end of the negative film 12 of the outermost layer can be pressed against the feeding roller 54 arranged at the upstream end of the guide path 16. As shown in FIG. 4, the feeding roller 54 is provided with the endless belt 5.
The negative film 12 on the outermost layer side is sent to the printing device 14 in the direction of arrow B by the driving force of the motor 58.

At this time, since the perforations of the adjacent negative films 12 are separated from each other, the negative film 12 of the outermost layer and the negative film of the negative films 12 of the two sheets do not interfere with each other and are fed in duplicate.

As shown in FIG. 5, the delivery roller 54
The nipping and conveying rollers 60 and 62 are arranged on the upper and lower sides of the conveying path of the negative film 12 on the downstream side of the nip film 12, and the nipping and conveying roller 62 is connected to the motor 58 through the endless belt 56 to nip the negative film 12. Driving force can be applied. In addition, these nip transport rollers 60,
A sensor 64 is arranged on the downstream side of 62 to detect the leading end and the trailing end of the negative film 12 and drive and control the printing apparatus 14. The sensor 64 also has a role of detecting the image of the negative film 12 and controlling the feed amount to the printing device 14.

As shown in FIG. 6, the base 3 of the holder 24 is
A first guide piece 66 is provided at the upstream end portion of 0. As shown in FIG. 7, the first guide piece 66 is continuous with the base portion 30 and is inclined so that the front end portion (upstream direction) gradually approaches the negative film 12 direction to be laminated (about 15 degrees). The first guide piece 66 remains in the holder 24 due to agitation when the outermost negative film 12 is detached from the holder 24 and conveyed to the printing apparatus 14 when the holder 24 is rotationally moved from the parallel position to the vertical position. The negative film 12 is pressed to prevent the tip of the negative film 12 from falling off. That is, the movement of the negative film 12 in the thickness direction is restricted by the first guide piece 66.

The negative film 12 is likely to come off when the number of the negative films 12 laminated on the holder 24 is small, and particularly the first guide piece 66.
Prevents the negative film 12 on the surface layer side from pressing and dropping the final negative film 12 when the remaining two negative films 12 are left. A flexible plate 67 made of rubber or synthetic resin is attached to the surface of the first guide piece 66 facing the negative film 12 to prevent the negative film 12 from being scratched.

On the other hand, as shown in FIGS. 6 and 8, a second guide piece 68 is provided at the downstream end of the support surface of the holder 24. This second guide piece 68 is
A pair of slant pieces 68A and 68B are formed to extend linearly from the base portion 30 and both ends of the extending portion in the width direction of the negative film 12 are inclined in the laminating direction of the negative film 12. ing.

As shown in FIG. 8, the oblique piece portions 68A, 68
B is inclined such that the polygonal lines 68C and 68D gradually approach each other as the polygonal lines 68C and 68D move away from the base 30.

Here, as for the negative film 12 held by the holder 24, the negative film 12 in the next layer may be double-fed when the negative film 12 on the surface side is conveyed. That is, as shown in FIG. 2, the perforation portions are separated from each other by the inclination of the guide portions 32 and 34, but since the widthwise end portions are in contact with each other, the negative film 12 of the next layer is a negative layer due to frictional force. The film 12 will be subjected to the double-fed force. Here, the diagonal pieces 68A and 68B contact the negative film 12 on the outermost surface side conveyed to the printing device 14 and the head of the negative film 12 of the next layer (or other negative film 12), but the outermost surface side Negative film 12
Is conveyed by the roller 54,
It is moved regardless of the movement restriction by the oblique sides 68A and 68B. However, since the conveying force is not applied to the negative film 12 of the next layer, the conveying is blocked by the oblique sides 68A and 68B.

The operation of the first embodiment will be described below. The table 20 of the negative film supply apparatus 10 is loaded on the side of the main table 22 of the printing apparatus 14 of this embodiment. By this loading, the holder 24 is positioned on the most upstream side of the guide path 16. That is, since the table 20 is unitized so that it can be loaded into the existing printing apparatus 14, it can be mounted when necessary and workability is improved.

The plurality of negative films 14 which have been subjected to the development processing are laminated and the latter half portion is accommodated in the accommodation concave portion 21 on the table 20. Since the periphery of the table 20 is covered by the vertical wall 18 and has a concave shape, the table 20 does not spread due to the strength of the waist of the negative film 12 and can be reliably accommodated.

The negative film 12 has its intermediate portion guided by the guide roller 26, climbs up from the bottom surface of the table 20 along the inclined surface 28, is bent at a substantially right angle, and reaches the holder 24.

One side in the width direction of the tip portion of the negative film 12 corresponding to the holder 24 is attached to the guide portion 3 below the holder 24.
4 is pushed in to the inner side of the guide portion 34 to bend the negative film 12, and then the other side in the width direction is inserted into the lower surface side of the upper guide 32. As a result, the laminated negative film 12 is sandwiched and held by the guide portions 32 and 34.

When the negative film 12 was inserted into the guide portion 32 side, there were cases where the negative film 12 could not be pushed all the way into the guide portion 32. However, in this embodiment, since the inclination angle of the guide portion 32 is increased, the end portion of the negative film 12 on the width direction guide portion 32 side can be fed to the inner side of the guide portion 32 by being guided by this inclination. In this way, the widthwise ends of the negative film 12 are pushed into the guide portions 32 and 34, respectively.
The respective center positions of are matched in a plan view.

In the holding state of the holder 24, the base portion 3
Since the width dimension of 0 is smaller than the width dimension of the negative film 12, the negative film 12 has a base portion 30 in the width direction middle portion.
It will be held in a state of being bent in a convex shape in a direction away from. Further, since the guide portions 32 and 34 are inclined in a direction in which they approach each other, the negative film 1 to be laminated is
The bending radius of 2 becomes gradually smaller (becomes largely bent) toward the surface layer side (right side of FIG. 2), and the adjacent negative film 1
The two image surfaces do not come into contact with each other, and the images are not damaged.

Further, burrs at the time of perforation perforation formed at both ends of the negative film 12 in the width direction are
It also does not engage the perforations of adjacent negative films 12.

When the printing start button is operated, the motor 48 turns the rotary arm 38 together with the holder 24 from the vertical position in FIG. 3 to the parallel position. Therefore, as shown in FIG. 1, only the tip portion of the negative film 12 is rotated 90 degrees about an axis parallel to the longitudinal direction, and the negative film 1 of the outermost layer is formed.
2 is pressed against the delivery roller 54.

When the holder 24 is set in the parallel position and the negative film 12 on the outermost surface is brought into contact with the feeding roller 54,
The feed roller 54 is rotated by the motor 58, and the leading end of the negative film 12 on the outermost layer is fed to the printing device 14 in the direction of the arrow B through the nipping and feeding rollers 60 and 62.

Here, when the negative film 12 on the surface layer side is sent out by the sending roller 54, the negative film 12 on the next layer may be double-fed. However, in this embodiment, since the second guide piece 68 is provided at the downstream end of the support surface and the inclined piece portions 68A and 68B are formed on the second guide piece 68, the final negative film 12 is The movement of the diagonal pieces 68A and 68B is blocked, and only the negative film 12 on the surface layer side can be conveyed to the printing apparatus 14.

After the leading end of the negative film 12 of the outermost layer is nipped by the nip transport rollers 60 and 62, the motor 48 is again provided.
Is reversely rotated to raise the holder 24 to the standby state.
This makes the sending of the negative film 12 smoother.

When the end of the negative film 12 on the outermost layer is confirmed by the sensor 64, the motor 48 is rotated again, the holder 24 is rotated from the vertical position to the parallel position, and the second negative film 12 is fed to the feeding roller 54. When pressed, it receives a longitudinal driving force and is sent to the printing device 14. In this manner, the negative film 12 on the surface layer side is sequentially sent to the printing device 14.

Here, the negative film 12 to the holder 24
When the number of the laminated negative films is reduced, especially when the remaining negative film 12 becomes two, the negative film 12 on the surface layer side is driven by the feeding roller 54 and nipped by the rollers 60 and 62, and the holder 24 is moved from the parallel position by the rotation of the motor 48. When the negative film 12 on the surface layer side, which is fed by the rollers 60 and 62 on the upstream side of the base portion 30, comes off the guide portions 32 and 34 when returning to the vertical position, the holder 2
4 presses the negative film 12 of the final layer at a portion deviated from the upstream end of the film 4, and the negative film 12 of the final layer is held by the holder 24.
The force to disengage from (acts in the direction of arrow P in FIG. 7). However, in this embodiment, since the first guide piece 66 is provided at the upstream end of the base portion 30, the negative film 12 of the final layer is not moved by the above-mentioned force, and the negative film 12 can be prevented from falling off. it can.

[Second Embodiment] A second embodiment of the present invention will be described below. The same components as those in the first embodiment are designated by the same reference numerals, and the description of the components will be omitted.

As shown in FIG. 9, the feature of the second embodiment is that the upper guide portion 32 can be opened and closed when the holder 24 is in the vertical position.

The guide portion 32 of this embodiment is rotatably connected to the base portion 30 via a shaft 50 like a so-called hinge. Here, in the rotation range of the guide portion 32, the included angle with the base portion 30 is 75 degrees from the open position (see reference numeral 32A) where the end face in the width direction of the base portion 30 serves as a stopper and is substantially in the same plane as the base portion 30. Limited to the closed position.
That is, the guide portion 32 rotates the base portion 30 when rotating in the closing direction.
And the angle theta ₂ from the position which is perpendicular will be rotated to a position which is inclined 15 degrees to the inside.

A torsion coil spring 52 as a maintaining means is attached to the outer periphery of the shaft 50, and urges the guide portion 32 to rotate in the closing direction. This prevents the negative film from being rotated in the opening direction against the urging force of the torsion coil spring due to the waist strength of the negative film.

The operation of the second embodiment will be described below. The holder 24 is in a vertical state, and the upper guide portion 32 is in an open state. In this open state, the guide portion 32 supports one end of the negative film 12 in the width direction of the negative film 12 against the guide portion 34 below the holder 24 while holding it against the biasing force of the torsion coil spring 52, and the base portion 30 The upper guide portion 32 is rotated in the closing direction against the biasing force of the torsion coil spring 52 in this state.
Here, the biasing force of the torsion coil spring 52 is reversed at the intermediate rotation position, and the upper guide portion 32 is held at the closed position by the biasing force. Thereby, the laminated negative film 12
Is sandwiched by the guide portions 32 and 34, and is supported and held by the base portion 30.

As described above, by making the guide portion 32 openable and closable, the work for loading the leading end portion of the negative film 12 into the holder 24 becomes easy.

The guide portion 32 is always urged in the closing direction by the torsion coil spring 52 as in this embodiment, and the tension coil spring applies a rotational urging force to the guide portion 32. The axis may be swung in response to opening / closing of the guide portion 32 and may be arranged so as to cross the axis of the shaft 50, and the biasing direction may be reversed at the intermediate portion of the opening / closing operation of the guide portion 32 (snap action mechanism). . Further, a modified example such as providing an engaging means that is engaged at the closed position of the guide portion 32 can be applied.

In this embodiment, the negative film supply device 10 is unitized so that it can be attached to and detached from the existing printing device 14, but the table 2 of the negative film supply device 10 can be detached.
Alternatively, only 0 may be removable, and the negative film 12 may be loaded in another place in advance.

That is, the negative film 12 after the development processing is placed on the accommodation recess 21 of the table 20 at a different place, with a large number of the negative films 12 being laminated and curved. After the negative film 12 is thus loaded, the table 20 may be loaded on the side of the main table 22 and then the leading end of the negative film 12 may be held in the holder 24.

[0065] Further, in the present embodiment, the angle theta ₁ of the guide portion 34 was set to 10 degrees, may be within the range of 0 ° <θ ₁ <15 °. It should be noted that the negative film 12 may fall off when the holder 24 is rotated if it is close to 0 degrees, and the center may shift when the negative film is sent out if it is close to 15 degrees. There was no angle, θ ₁ = 10 degrees.

[0066]

INDUSTRIAL APPLICABILITY As described above, the negative film supply device and the accommodating unit according to the present invention are capable of stocking negative films in a laminated state in advance, improving the workability, and stocking them. It has an excellent effect that a negative film in a laminated state can be easily loaded into an existing printing apparatus.

[Brief description of drawings]

FIG. 1 is a perspective view of a printing apparatus equipped with a negative film supply apparatus according to this embodiment.

FIG. 2 is a side view of a holder.

FIG. 3 is a side view showing the drive mechanism of the holder as seen from the upstream side of the guide path.

FIG. 4 is a plan view of a holder and its periphery.

FIG. 5 is a side view of the holder and the feeding mechanism as viewed in the direction of the arrow in FIG. 4V.

FIG. 6 is a plan view of a holder.

FIG. 7 is a side view corresponding to FIG. 5 when the holder is in a position parallel to the guide path.

FIG. 8 is a perspective view showing the vicinity of the downstream end of the holder.

FIG. 9 is a side view corresponding to FIG. 2 when the guide portion of the holder according to the second embodiment is openable / closable.

[Explanation of symbols]

 10 Negative Film Supply Device 12 Negative Film 14 Printing Device 18 Vertical Wall 20 Table 24 Holder (Holding Member) 54 Feeding Roller (Feeding Means) 58 Motor (Feeding Means)

Claims (3)

[Claims] 1. A negative film supply device for sequentially supplying a plurality of negative films to a printing device, the table having a storage recess for storing the rear parts of the plurality of negative films in a laminated state, and the negative film. A holding member which holds at least the vicinity of the leading end of the film and a leading end of the outermost layer of the negative film held by the holding member are applied with a longitudinal tensile force to sequentially feed the negative film to the printing apparatus along the guide path. Negative film supply device having a feeding means for performing. 2. The negative film supply device according to claim 1, wherein an inclined surface for ascending the negative film is formed from the accommodation recess to the guide path. 3. A negative film accommodating unit used in a negative film supply device for stacking a plurality of negative films and sequentially supplying the negative film from the outermost layer side to the printing device while holding the vicinity of the leading end portion thereof. A storage recess is formed to store a middle portion and a rear end portion of a plurality of negative films in a stacked state, and the storage recess can be carried in the storage state of the negative films and can be attached to and detached from a predetermined position of the printing apparatus. Negative film accommodating unit.