JPH0241730B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photographic printing processing apparatus, and more particularly, the present invention relates to a photographic printing processing apparatus, and more specifically, a printing section prints a photographic image from a negative film or the like onto a strip of photographic paper, and the photographic paper is delivered in the strip-like form to a developing processing section. The present invention relates to a photographic printing processing apparatus.

In a photographic printing processing device, in order to directly perform the intermittent printing of prints on strip-shaped photographic paper and the continuous development processing (hereinafter simply referred to as "processing"), the speed of both is increased. Various efforts have been made to achieve harmony. These methods can be broadly divided into two methods: one is to cut the strip-shaped photographic paper after print printing into sheets into individual image frames, and deliver these sheets to the processing section, and the other is to deliver the strip-shaped paper to the processing section without cutting each image frame. It can be divided into methods.

The former sheet-forming method has no problems in terms of harmonizing the speed of print printing and processing, but it does require a large number of rollers in the processing section to transport the photographic paper cut into small pieces. The drawback is that it is complicated and the equipment is expensive.

On the other hand, in the latter method of processing the paper as it is in a strip, the leading edge of the strip of photographic paper is engaged with a leader or a leading member such as a photographic paper guide clip (hereinafter simply referred to as a "clip") that is conveyed in a chain. This has the advantage of simplifying the mechanism, but it may be necessary to separate the strip of photographic paper from the unprinted portion in order to balance the printing and processing speeds. In order to prepare for such a case, this type of photographic printing processing apparatus may have means for cutting the strip of photographic paper, and at the same time, means for engaging the aforementioned leading member with the leading end of the cut strip of photographic paper. desirable.

As a photographic printing processing apparatus having such a means, the present applicant has disclosed Japanese Patent Application No. 56-49197 (Japanese Unexamined Patent Publication No. 57-491).
-163227 or Special Publication No. 1-26049)
There is a photo printing processing device proposed in . This device is a photographic printing processing device consisting of a printing section for strip-shaped photographic paper, a processing section, and a guide section that communicates between these sections. A hole puncher for punching a locking hole near the tip; a clip attaching means for locking the locking hole to a clip; a reservoir for temporarily storing a trailing portion of the strip of photographic paper locked to the clip; This apparatus is provided with a delivery means for delivering a clip holding the leading end of a strip of photographic paper to a processing section.

The present invention relates to an improvement of the above-mentioned photographic printing processing apparatus, and its purpose is to provide a rational photographic printer that allows the same perforation means and the same clip to be used for strips of photographic paper of different paper widths. An object of the present invention is to provide a printing processing device.

The above-mentioned object of the present invention is to provide a photographic printing apparatus having a printing section for strip-shaped photographic paper, a processing section, and a delivery section communicating between these sections, including a cutter for cutting the strip-shaped photographic paper passed through the printing section; Near the tip of the strip of photographic paper cut by the cutter,
A hole puncher that punches locking holes at constant intervals based on the smallest paper width of the strip of photographic paper at constant positions regardless of the paper width; and a hole puncher that locks the locking holes to a photographic paper guide clip. a reservoir for bending and temporarily accommodating a trailing portion of the strip-shaped photographic paper held by the photographic paper guide clip; This is achieved by a photographic printing processing apparatus characterized in that the guide clip is delivered to the processing section.

The key point of the present invention is that the locking holes drilled near the leading edge of the photographic paper strip are constant and are independent of changes in the width of the photographic paper strip. The advantage is that there is no need for position adjustment, etc. In carrying out the present invention, a first support rod having a locking pawl that engages with the certain locking hole, and a first support rod on both outer sides thereof that serve to prevent deformation of the strip-shaped photographic paper are used. It is important to use a clip with two bearing rods.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view showing the main parts of a photographic printing processing apparatus showing an embodiment of the present invention.

Band-shaped photographic paper (hereinafter simply referred to as "photographic paper") 1
is transported through the light-shielded space in the order of printing section 2, delivery section 3, and processing section 4. The photographic paper 1 supplied to the spool 5 is transferred to a printing table 7 via a tension roller 6.
and is guided between the double press roller 8 and the feed roller 9. A sensor 10 is provided on the downstream side of the photographic paper traveling side of the feed roller 9 (hereinafter simply referred to as "downstream side"), and detects the leading edge of the photographic paper 1 to stop conveyance of the photographic paper.

Below the printing table 7 is a printing optical system and a light source 11.
is provided. Furthermore, a hole puncher 12 and a cutter 13 are provided downstream of the sensor 10. The hole puncher 12 has a locking hole formed near the leading edge of the photographic paper for engaging the clip, and is characterized in that the locking hole is formed as follows. be. That is, the same locking hole is provided for all widths of photographic paper handled by this apparatus. Therefore, its dimensions may be determined based on the smallest width photographic paper that can be handled by this apparatus. Generally, the so-called service size photographic paper is the photographic paper with the smallest width, so the width can be determined based on this.

By configuring the hole puncher 12 in this way, the same hole puncher 12 can be used even if the width of the photographic paper changes, which has the advantage of simplifying the structure and maintenance of the device. Further, the hole puncher 12 has a function of simultaneously forming a check hole for checking the progress of the photographic paper in addition to the above-mentioned locking hole.

The cutter 13 cuts the photographic paper at a position a predetermined distance away from the locking hole formed as described above. Further, when printing is completed, if there is unprinted photographic paper on the spool 5, the cutter 13 cuts between the printed portion and the unprinted portion, and transfers only the printed portion to the processing section 4 on the downstream side. It is also used to send to. In this case, the unprinted portion of the photographic paper is
It is desirable to prevent waste of photographic paper by pulling it back toward the printing section and using it for printing the photographic paper using the method proposed in the above publication.

A sensor 15 is provided near the downstream side of the cutter 13 to detect a check hole punched on the photographic paper 1 by the hole puncher 12 at the same time as the locking hole. This check hole is for confirming the engagement between the locking claw of the clip and the locking hole of the photographic paper, which will be described later.

A paper guide 16 is provided downstream of the sensor 15.
is axially supported. The paper guide 16 is normally located at the position indicated by the broken line and forms the transport surface for the photographic paper 1, but after it is detected that the leading edge of the photographic paper 1 has engaged with the clip 14, the paper guide 16 is located at the position indicated by the broken line and forms the transport surface for the photographic paper 1. A loop 18 of printed photographic paper is moved to a position where
formation in the reservoir 17 provided below the paper guide 16. A plurality of sensors 19, 20, 21 are provided within the reservoir 17 to detect the loop amount. A plurality of clips 14 are loaded in a clip case 22, and are guided into separate conveyance paths one by one. FIG. 2 is a perspective view of the clip 14 used in this embodiment. The clip 14
A rigid rod-shaped portion 23 and a locking portion 24 made of an elastic material such as resin are integrated, and both ends of the rod-shaped portion 23 are set in grooves 26 of a pair of opposing chains 25. It's summery.

The locking portion 24 includes a first support rod 27 having a locking pawl in a direction opposite to the conveyance direction (indicated by arrow A), and a diversion portion on both outer sides of the first support rod. A second bearing rod, an auxiliary bearing rod 30, is provided, which has an annular portion 28 and an anversion portion 29. Two of the first supporting rods 27 having the locking claws are formed with an interval determined based on the minimum width photographic paper size handled by this apparatus.

The leading edge of the photographic paper 1 also shown in FIG.
A locking hole 31 and a check hole 32 formed by the hole puncher 12 are provided, and as the photographic paper 1 advances in the conveying direction, it is inserted between the upside-down portion 28 and the downside-up portion 29. The locking hole 31 engages with the locking pawl of the first support rod 27, and the clip 14 is firmly supported by the auxiliary support rod 30 from above. Photographic paper 1 wider than the minimum width of photographic paper corresponding to the interval between the two first support rods 27
is locked near the center by the first support rod having the locking pawl, and both outer portions are locked by the diversion part 28.
It is supported by a second support rod having an inferior part 29 and transported stably.

The clip case 22 is connected to a clip guiding means 33, and among the plurality of clips 14 in the clip case 22, the clip 1 at the lowest position is connected to the clip guiding means 33.
4 to the engagement position with the photographic paper 1.

The guide means 33 is provided with a sensor 34, and the check hole 3 formed at the leading end of the photographic paper 1 is connected to the guide means 33.
Detect 2. This detection is performed using the locking hole 3 of the photographic paper 1.
1 is engaged with the locking pawl of the first support rod 27 of the clip 14, and the detection signal confirms that the photographic paper 1 and the clip 14 are securely engaged. be done. Further, a sensor 35 is provided at the lowest position of the clip case 22, and a sensor 35 is provided at the lowest position of the clip case 22.
A sensor 36 is provided at the clip standby position guided into the conveyance path, and detects whether the clip 14 is in the standby position.

The chain conveyance section has two sprockets 37, 3.
The clip 14 is guided by the action of the groove 26 of the pair of chains 25 extending between the two chains 8 and a guide member (not shown) provided below the chain 25. A sensor 39 is provided in the chain conveyance path, and when the photographic paper 1 is sent to the processing section 4 and its end passes through the sensor 39, a detection signal is generated, and the photographic paper is supplied to the processing section 4. This is to inform you whether or not it is possible.

The operation of the apparatus of this embodiment will be explained below.

In the following description, the distances between the respective components of the apparatus shown in FIG. 3 will be used as appropriate.

It is supplied from spool 5, and its tip is connected to sensor 1.
The photographic paper 1 is conveyed until it is detected by
It is conveyed a distance L ₆ downstream from the feed roller 9 to a position a and then stopped. In this state, the hole puncher 12 and cutter 13 operate to form the above-mentioned pair of locking holes 31 and check holes 32, and also to hold the leading edge of the photographic paper 1 at right angles to its longitudinal direction. Then, the cutting is performed at a position a certain distance (L ₇ ) from the locking hole 31. The photographic paper 1, which has been perforated and cut, is transported back toward the printing table by a length _L2 , and stopped when the leading end returns to a position where it is held between the feed roller 9 and the press roller 8 on the downstream side. The preparation for printing the print is now complete.

When printing progresses and printing from a series of negative films is completed, the printing paper 1 is cut at the part where printing has been completed, but in this case, the clip is engaged with the beginning of the next printing part. Since it is necessary to provide a margin for printing, a predetermined amount of blank feeding is performed here, and the next series of negative films is printed. When the blank area reaches the position of the cutter 13 during the printing process, the hole puncher 12 and the cutter 13 are operated, and the first part of the photographic paper 1 that has been printed is separated from the second part of the photographic paper 1. The locking hole 31 and the check hole 32 are formed at the top of the second portion. The separated first portion is sent to the processing section via the delivery section 3. Also, the second part is the following clip 14
The device is in a standby state for engagement with the device.

On the other hand, when the leading end of the first portion of the photographic paper 1 that is intermittently conveyed in synchronization with the print printing reaches the position of the sensor 15, the sensor 15 detects a check hole 32 formed in the leading end. is detected.
This detection signal causes the clip 14 located at the lowest position in the clip case 22 to move to the clip guiding means 3.
3, it is sent to the standby position (the position where the clip 14 is drawn in FIG. 1). The leading edge of the first portion of the photographic paper 1 is conveyed over a paper guide 16 (located in the position indicated by the dashed line in FIG. 1) and engages with a clip catch 24. The quality of the engagement is determined by the sensor 34 provided within the clip guiding means 33. The transfer of the clip 14 to the standby position is similarly detected by the sensor 36 in the clip guide means 33, and it is determined whether the clip is in the standby position or not. Also, sensor 3
Reference numeral 5 detects the presence or absence of clips 14 in the clip case 22 and prepares for subsequent replenishment of clips.

When the engagement between the photographic paper 1 and the clip 14 is completed, the paper guide 16 moves to the position shown by the solid line in FIG. I will accommodate it. When a certain amount of photographic paper 1 is stored in the reservoir 17, the clip 14 engaged with the tip of the photographic paper 1 is released.
is transferred to the chain transport section and sent to the processing section 4 by the chain 25.

The looped photographic paper 1 in the reservoir 17 is sent to the processing section one after another, and when the amount of photographic paper in the reservoir 17 gradually decreases and reaches the topmost sensor 19, the cutter 13 is activated. Cut the photographic paper 1. However, if the photographic paper loop gradually decreases and rises within the reservoir 17 and printing is to be performed in the printing section 2 before the lowest loop position Y reaches the sensor 19, the photographic paper 1 will not be cut.

When the rear end of the photographic paper 1 that has been cut and sent to the processing section passes a sensor 39 provided in the chain conveyance section, it is confirmed that the supply of the photographic paper 1 to the processing section 4 is complete.

Similar processing is performed for the second and subsequent parts of the photographic paper 1. However, if as a result of printing a series of prints from a series of negative films, the length L of the photographic paper 1 at the part where printing has been completed is L<L ₄ +L ₅ -L ₈ , then the next series When printing a print from a negative film, there is no need to provide the margin. As for the clip guiding means 33 and the chain conveying section, it is preferable to use those proposed in the above-mentioned Japanese Patent Application No. 56-49197.

4A to 4C show situations in which photographic paper 1 of various widths are engaged with the clip 14, and A shows the case where photographic paper 1 of the smallest width handled by the apparatus of this embodiment is used. , B, and C show the case where a wider photographic paper 1 is used. As is clear from FIGS. 4A to 4C, the device of this embodiment is provided with a hole puncher that punches holes for locking at constant intervals regardless of changes in the paper width of the photographic paper 1 to be handled, and also has a The clip 14 also includes a first support rod with locking claws spaced apart at regular intervals corresponding to the locking holes spaced at constant intervals, and a second support rod located on both outer sides of the rod and supporting the photographic paper 1 from both the upper and lower sides. By using a structure having a support rod, the photographic paper 1 can be stably conveyed without performing any special operations in response to changes in the paper width of the photographic paper 1.

It goes without saying that the number of locking holes provided in the photographic paper 1 is not limited to two, and may be one or three or more. Moreover, the size and shape can be selected freely to some extent. In either case, the clip 1 has a first support rod with a locking claw that corresponds to the locking hole, and second support rods that are located on both sides of the first support rod and support the photographic paper 1 from above and below. If different types are prepared, it is possible to stably transport photographic paper 1 of all paper widths.

As described above, according to the present invention, in a photographic printing apparatus having a printing section for strip-shaped photographic paper, a processing section, and a delivery section communicating between these sections, the strip-shaped photographic paper that has passed through the printing section is cut. A cutter and a hole punch for punching holes near the tip of the strip of photographic paper that is cut by the cutter at regular intervals based on the smallest paper width of the strip of photographic paper at fixed positions regardless of the paper width. clipping means for locking the locking hole to the photographic paper guide clip; and a reservoir for temporarily storing the trailing portion of the strip of photographic paper which is secured to the photographic paper guide clip by bending the trailing portion thereof; Since the transfer section is configured to transfer the photographic paper guide clip that holds the leading end of the strip of photographic paper to the processing section, the same perforation means and the same clip can be used for photographic paper of different paper widths. This has the remarkable effect that it is possible to realize a photographic printing processing apparatus that has a simple structure and is easy to operate.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the main parts of a photographic printing processing apparatus which is an embodiment of the present invention, FIG. 2 is a perspective view of a clip, and FIG. 3 is a diagram showing the distance between each component of the embodiment of the apparatus. , FIG. 4 is a diagram showing the state of engagement between the clip and the photographic paper. 1: Photographic paper, 2: Printing section, 3: Delivery section, 4:
Processing section, 5: Spool, 6: Tension roller,
7: Printing table, 8: Press roller, 9: Feed roller, 10, 15: Sensor, 11: Light source, 12:
Hole puncher, 13: cutter, 14: clip, 16: paper guide, 17: reservoir, 22: clip case, 25: chain.

Claims (1)

[Claims] 1. In a photographic printing processing apparatus having a printing section for strip-shaped photographic paper, a processing section, and a delivery section that communicates between these sections, a cutter for cutting the strip-shaped photographic paper that has passed through the printing section, and a cutter for cutting the strip-shaped photographic paper that has passed through the printing section; Near the tip of the cutting part, a hole puncher for punching locking holes at constant intervals regardless of the paper width, based on the smallest paper width of the strip-shaped photographic paper; A clipping means that locks on the photographic paper guide clip, and a reservoir that curves and temporarily stores the trailing portion of the strip of photographic paper that is clipped on the photographic paper guide clip, and the transfer section allows the strip of photographic paper to be 1. A photographic printing processing apparatus, characterized in that a photographic paper guide clip with its leading end latched is delivered to the processing section.