JPH04257855A - Negative film feeder - Google Patents

Abstract

PURPOSE:To provide a negative film feeder for successively feeding plural negative films, which have finished development, to a printer. CONSTITUTION:The negative films F are stacked in a storage device 13, where the tip end part of each negative film is inserted into a holder 12. In a holder 12 in the lowest part, the protruding front end of the negative film F is held therebetween by carrying rollers 32 and 33, and the film is fed to the printer 14. After the negative film F in the lowest part is fed, the ejection arm 68 of an ejecting device 62 pushes the holder 12 in the lowest part out of the storage device 13. When the following holder 12 reaches the lowest part the carrying rollers 32 and 33 holds again the negative film F therebetween to send it to the printer 14.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a negative film feeding device for sequentially feeding a plurality of negative films to a printing device.

0002

[Prior Art] When printing a developed negative film onto photographic paper, etc., the negative film is set one by one onto a negative carrier, and the printing light from the light source is applied by operating the print operation key. It is designed to expose photographic paper etc. through negative film. Therefore, when printing a plurality of negative films in sequence, the operator is required to set the negative films and operate the print operation key each time.

In addition, when printing a large amount of negative film continuously, the negative films are connected in series with adhesive tape or the like and wound onto a reel, and this reel is loaded into a printing device to automatically print all the negative films. In some cases, negative film is printed. However, after printing, it is necessary to cut each piece of connected film separately and compare it with the printed print, which also causes damage to the negative film.

0004

[Problems to be Solved by the Invention] The present invention takes the above-mentioned facts into account, and allows a plurality of negative films to be set at once, and after being set, the plurality of negative films are automatically sequentially supplied to a printing device. The purpose is to obtain a negative film supplying device that can be used.

[0005]

[Means for Solving the Problems] The invention according to claim 1 of the present application is a negative film supply device that sequentially supplies a plurality of negative films to a printing device, the negative film being movable in the longitudinal direction. A large number of negative film holding members to be held, a storage means for storing these negative film holding members in a stacked state, and a feeder for pulling out the negative films in the longitudinal direction from the negative film holding members in the storage means and sending them to a printing device. It is characterized by having means.

The invention according to claim 2 of the present application is a negative film supplying device that sequentially supplies a plurality of negative films to a printing device, the device comprising a plurality of negative films that hold the negative films so as to be movable in the longitudinal direction. a holding member; a storage means for stacking and storing these negative film holding members;
The storage means includes a feeding means for longitudinally pulling out the negative film from the negative film holding member at the lowermost stage and feeding it to the printing device, and a feeding means for ejecting the negative film holding member at the lowermost stage from the storage means after the negative film has been pulled out. ejecting means for moving the next negative film holding means to the lowest stage by its own weight;
It is characterized by having the following.

[0007]

In the present invention, a plurality of negative films are each held by a negative film holding member after being developed. A large number of negative film holding members are stored in a stacked state or stacked in a storage means. The negative film holding member within the storage means is fed out from the holding member to the printing device by the feeding means at a specific position. Since the holding member allows the negative film to be moved in the longitudinal direction, the feeding means draws out the negative film along the longitudinal extension line and sends it out to the printing device.

In a structure in which the storage means stacks and stores negative film holding members, and within this storage means, other holding members can fall to the lowest negative film holding member by the weight of the negative film holding member. The feeding means longitudinally pulls out the negative film from the lowermost negative film holding member and sends it out to the printing device. The discharge means discharges the negative film holding member from the storage means after the lowest negative film has been fed out. As a result, the next negative film holding means is moved by its own weight to the lowest stage to correspond with the feeding means. In this way, a large number of negative film holding members are sequentially moved to the lowest stage, and the negative film is supplied to the printing device.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 3 show a negative film supplying apparatus 10 to which an embodiment of the present invention is applied.

The negative film F after the development process is inserted in the direction of arrow A into a holder 12 which is a negative film holding member shown in FIGS. The lowermost holder 1
2 in the direction of arrow B, which is an extension of the direction of arrow A, and supplied to the printing device 14.

The holder 12 has a rectangular block shape as shown in FIGS. 4 to 6, and has a slit 16 formed therethrough in the direction of arrow A into which a negative film F is inserted. At the insertion entrance of the negative film F, the width and spacing of the slits 16 are gradually widened to form an introduction part 16A for guiding the negative film F. The interval between the slits 16 is considerably larger than the thickness of the negative film F. Further, the central part in the width direction of the slit 16 is a notch 16B formed with wide intervals, and the negative film F inserted therein is cut out.
Slit 1 is only near perforation P at both ends of
The image forming portion at the center in the width direction is prevented from contacting the image by the notch portion 16B.

A plurality of (five in this embodiment) triangular projections 18 protrude from the bottom surface of the slit 16, as shown in detail in FIGS. 5 and 6. As shown in FIG. 6, these protrusions 18 are projected at the same intervals as the intervals at which the perforations P of the negative film F are formed, so that the vicinity of their tips are inserted into the perforations P. Further, this protrusion 18 has a small upright angle on the entrance side where the leading end of the negative film F comes into contact when inserted in the direction of arrow A, and comes into contact with it when the negative film F is moved in the opposite direction to the direction of arrow A. The slope is set at a steep angle. Therefore, this protrusion 18 moves the negative film F along the arrow A.
A position/direction guide means is formed that allows movement only in this direction and does not allow withdrawal in the opposite direction.

In order to ensure this one-way guiding action, semicircular protrusions 22 protrude from the ceiling of the slit 16 toward the bottom of the slit 16, corresponding to the portions between the plurality of protrusions 18. The tips of these protrusions 22 are the protrusions 18.
It has the role of preventing the negative film F from moving in the direction opposite to the direction of arrow A by entering the same position as between the tips of the protrusions 18 or slightly further between the tips of the protrusions 18.

The storage device 13 into which the holder 12 thus formed is inserted is mounted on a support base 2 as shown in FIGS. 1 to 3.
Four pillars 26, 27, 28, and 29 are erected above 4, and a large number of holders 12 are accommodated in a stacked state between them. These columns have a U-shaped horizontal cross section corresponding to the corner portion of the holder 12, but the distance between the columns 26 and 28 is equal to the front end surface 12A of the holder 12.
It has a size that allows it to pass through without coming into contact with both ends in the width direction of the negative film F being pulled out. Further, the spacing between the columns 27 and 29 is such that the leading end of the negative film F protruding from the rear end surface 12B of the holder 12 can freely pass through. Furthermore, notches 26A and 27A are formed in the lower ends of the columns 26 and 27, and the lowermost holder 12 in contact with the support base 24 is cut out in a direction perpendicular to the arrow A direction (arrow C
direction) from between the supports 26 and 27. The ejected lowermost holder 12 is stored in the storage box 31.

A discharge device 62 is provided on the opposite side of the storage device 13 from the storage box 31. In this discharge device 62, a timing belt 66 is wound around a pair of pulleys 64 and 65, and the base of a discharge arm 68 is fixed to the outer periphery of this timing belt 66. As the pulley 64 is reciprocated by the driving force of the motor 69, the discharge arm 6
The tip of 8 enters into the storage device 13 between the pillars 28 and 29, sends out the lowest holder 12 in the direction of arrow C and accommodates it in the storage box 31, and returns to the illustrated position by reverse rotation. The next holder 12 is dropped to the lowest position.

A holder rear end surface 12 is provided on the rear side of the storage device 13.
A stopper 34 is fixedly arranged corresponding to B. This stopper 34 corresponds to a holder other than the holder 12 located at the lowest stage in the storage device 13, and comes into contact with the tip of the negative film F projected from the holder 12 to keep the amount of negative film projected from the holder 12 at a constant value. It is designed to be restricted.

Conveying rollers 32 and 33 are arranged on the printing device 14 side of the storage device 13, and constitute a feeding means. These conveyance rollers 32 and 33 are designed to sandwich the negative film F protruding from the holder 12 at the lowest stage and send it to the printing device 14.

The conveyance roller 33 is disposed below the trajectory of the negative film F being conveyed in the direction of arrow B, and is rotated by the driving force of a motor 36. Further, the transport roller 32 disposed above the movement trajectory of the negative film F is pivotally supported by a roller holder 38, and as the roller holder 38 rotates together with a support shaft 42, it can come into contact with and separate from the transport roller 33. ing. That is, with the roller holder 38 standing approximately vertically and the conveying roller 32 separated from the conveying roller 33 by the driving force of the solenoid 44, the negative film F is inserted between the conveying roller 32 and the conveying roller 33. When the excitation force of the solenoid 44 is released, the roller holder 38 clamps the leading end of the negative film F between the roller holder 38 and the returned conveyance roller 33 by the biasing force of the elastic body.

The solenoid 44 is detected by a sensor (not shown) when the holder 12 reaches the lowest position of the storage device 13, which is the take-out position, and the solenoid 44 is actuated so that the leading edge of the negative film F can be held. It has become.

A leading edge sensor 52 is disposed downstream of the conveying rollers 32 and 33, and detects the leading and trailing edges of the negative film F to start and stop the printing device 14, and detects the leading edge and trailing edge of the negative film F, and detects the leading edge and trailing edge of the negative film F to start and stop the printing device 14. 54 and 55 and are arranged downstream of the tip sensor 52.
The printing device 14 creates a speed difference between the conveyance speed of
A loop portion 58 is formed in order to absorb the difference between the conveyance speed at the conveyance speed and the conveyance speed at the conveyance rollers 32 and 33. Further, this tip sensor 52 is also capable of detecting the screen of the negative film F and detecting the amount of movement of the negative film F.

In FIG. 1, the nipping conveyance roller 57 receives the driving force of the motor 36 via the endless belt 62, but the nipping conveyance roller 57 is driven by a drive source separate from the conveyance roller 33. You can also do this. Note that a box 61 may be provided to accommodate the lower end of the negative film F suspended from each holder 12.

Next, the operation of this embodiment will be explained. The leading ends of the plurality of negative films F, which have been developed, are each inserted into the slit 16 from the front end surface 12A of the holder 12 in the direction of arrow A. The holder 12 into which the negative films F have been inserted is housed in a stacked state in the storage device 13, and the protruding tips of the negative films F are brought into contact with the stopper 34. Either of the insertion work of the negative film F and the work of stacking the holder 12 into the storage device 13 can be performed first. As shown in FIG.
8 and 22, insertion in the direction of arrow A is possible, but reversal is impossible. Further, since the negative films F stored in the holder 12 are sequentially taken out from the holder 12 located at the lowest stage, the negative films stored in the storage device 13 first are sent out to the printing device 14 in order. The printing order of the film can be freely selected.

When the printing start button is operated after setting a plurality of holders 12 in the storage device 13 as shown in FIG. The leading end of the negative film F in the lowermost holder 12 is held between them. When the motor 36 is driven here, the conveyance roller 32,
33 pulls out the leading end of the negative film F at the bottom from the holder 12 and sends it out to the leading end sensor 52. When the negative film F passes the tip sensor 52, the printing device 14 is activated, so that the negative film F is sent into the printing device 14 and a printing operation is performed.

After all of the first negative film F has been sent into the printing device 14, the tip sensor 52 detects this, and the solenoid 44 again rotates the roller holder 38 to the upright position, and the motor 69 starts the timing. belt 6
6 in the clockwise direction in FIG. When the discharge arm 68 returns to the state shown in FIGS. 1 and 3 due to the reverse rotation of the motor 69, the next holder 12 falls to the lowest position due to its own weight. As a result, the leading end of the negative film F protruding from the holder 12 that has fallen to the lowest position is placed on the conveyance roller 33, so that when the solenoid 44 is driven, the roller holder 38 moves between the conveyance roller 32 and the conveyance roller 33. The leading end of the negative film F is held between the two. So motor 36
is driven and the same operation as above is repeated. In this way, when the negative films F are sequentially sent to the printing device 14, a separate holder 12 into which the negative films F are further inserted is provided.
can be sequentially inserted onto the storage device 13.

In the above embodiment, the holders 12 are sequentially dropped by their own weight in the storage device 13, but the holders 12 stacked in the storage device 13 are
The mounting position may be fixed, and by moving the storage device 13 up and down by a driving means, the negative films F may be sequentially moved from a plurality of holders 12 in the storage device 13 to the take-out position. In this case, which holder 1
It is possible to arbitrarily decide whether to take out the second negative film F first, and since the holder 12 from which the negative film F has been ejected does not need to be ejected from the storage device 13, the ejecting device 62 is unnecessary.

Next, FIG. 7 shows a holder 70 used in a second embodiment of the present invention. This holder 70 has a parallel leg portion 71A of a main body 71 bent in a U-shape by a thin plate material.
, 71B hold the ends of the negative film F in the width direction. These parallel leg portions 71A and 71B are in a parallel state or in an inclined state with their tips slightly approaching each other, and a holding tape 72 is adhered to each opposing surface. This holding tape 72 has a number of protrusions 73 erected on its opposing surface, and the negative film F is held between these protrusions.
The ends are held in place. These protrusions 7
3 is a configuration in which both ends of a U-shaped thin synthetic resin wire are fixed to the holding tape 72, or the tip of the thin wire whose base end is fixed to the holding tape 72 is bent into a hook shape or has an expanded diameter. can be adopted. Specifically, Velcro (trade name) can be used for the holding tape 72 and the projections 73.

The other end of the negative film F, whose both ends are held between the parallel leg portions 71A and 71B, may be allowed to hang down freely as in the embodiment described above; Preferably, it is accommodated within 74. This saucer 7
4 has a U-shape and one end is connected to the end of the main body 71, and the end of the negative film F is wound up into a roll and stored therein.

This holder 70 can store negative films F by stacking them in the storage device 13 in the same manner as in the previous embodiment.

The present invention can be applied to various holders other than the above configuration. It is also possible to hang the lower end of the negative film F hanging down from the holder 12 in the first embodiment at an appropriate position.

[0030]

Since the present invention has the above structure, it has an excellent effect of being able to reliably supply the negative film F to the printing device one after another.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a negative film supply device to which the present invention is applied.

FIG. 2 is a front view of the negative film supply device of FIG. 1;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a front view of the holder used in this example.

5 is a perspective view of the holder taken along line V-V in FIG. 4. FIG.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 4;

FIG. 7 is a perspective view showing a holder according to a second embodiment.

[Explanation of symbols]

F Negative film 10 Negative film supply device 12
Holder 13 Storage device 14 Baking device 26 Post 27 Post 28 Post 29 Post 32 Conveyance roller 33 Conveyance roller 70 Holder

Claims (2)

[Claims] 1. A negative film supply device that sequentially supplies a plurality of negative films to a printing device, the device comprising a number of negative film holding members that hold the negative films so as to be movable in the longitudinal direction, and a number of negative film holding members that hold the negative films in a longitudinally movable manner. A negative film supply device comprising: a storage means for storing members in a stacked state; and a feeding means for drawing out the negative film in the longitudinal direction from a negative film holding member in the storage means and sending it to a printing device. 2. A negative film supply device that sequentially supplies a plurality of negative films to a printing device, the device comprising a number of negative film holding members that hold the negative films so as to be movable in the longitudinal direction, and the negative film holding members. a storage means for stacking and storing the members; a feeding means for pulling out the negative film in the longitudinal direction from the negative film holding member at the lowest stage of the storage means and sending it to the printing device; 1. A negative film supplying device comprising: a discharge means for discharging a negative film holding member from a storage means and moving the next negative film holding member to the lowest stage by its own weight.