JP2501310B1 - Drilling method and device - Google Patents

Abstract

An object of the present invention is to eliminate the need for die set replacement work associated with a change in the length of a perforation pattern, and to make the apparatus compact. SOLUTION: A die set 20 for taking 15 pictures and a die set 21 for taking 10 pictures are arranged. When manufacturing a photographic film strip for taking 35 pictures, first, the photographic film 13 for a prescribed length for taking 25 pictures is used.
Is transported. After this conveyance, the die sets 20 and 21 are simultaneously driven to form 25 perforations. Photo film 13 for only 10 perforations
Then, only the die set 10 on the upstream side is driven. Thirty-five perforations are formed within the effective exposure range by carrying the film twice and driving the die set twice.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a perforation method and apparatus used for manufacturing photographic film strips and the like,
More particularly, the present invention relates to a method and apparatus for forming a perforation pattern in which perforations are regularly arranged in a continuous film at predetermined intervals.

[0002]

2. Description of the Related Art In 135 type photographic film cartridges currently on the market, perforations for feeding or measuring are formed on both sides of a photographic film strip at a constant pitch over the entire length. A perforating device for forming perforations at a constant pitch over the entire length of a photographic film strip is disclosed in Japanese Patent Laid-Open No. 61-214999 and Japanese Utility Model Laid-Open No. 4-2800.

US Pat. No. 4,846,418 or the like proposes a photographic film cartridge in which all of the photographic film strips are stored in the cartridge, and a film leader can be sent out from the cartridge by rotating a spool. . A camera using this new type of photographic film cartridge does not require an initial feeding mechanism for conveying the film leader to the take-up spool immediately after the film is loaded.

The photographic film strip used in this new type photographic film cartridge has one or two perforations assigned to one photographic frame only within the effective exposure range in which photography is possible. The film leader and film trailer on both sides of the exposure area are in a format with no perforations. This perforation is optically detected by a sensor arranged in a film passage in the camera, and is used to identify a photographing frame to be photographed within an effective exposure range and correctly position it behind the exposure aperture.

By the way, as a photographic film strip in which a perforation pattern is formed only within the effective exposure range, there is a well-known 110 type. In this 110-type photographic film strip, perforations are formed at a constant pitch along one side so that one perforation is assigned to each frame. In the production of 110 type photographic film strips, one die set is used to form the perforation pattern of one photographic film strip at a time. In this die set, a number of punches and dies that match the number of frames to be photographed are arranged at a predetermined pitch.

[0006]

The photographic film cartridges are classified according to the specified number of photographic film strips stored. The prescribed number of shots includes, for example, 12 shots, 24 shots, and 36 shots, and these have different effective exposure ranges. In the conventional punching device, a die set for taking 12 shots, a die set for taking 24 shots, and a die set for taking 36 shots are prepared in accordance with the type of the prescribed number of shots, and the shooting regulations for the photographic film strip to be manufactured. The die set according to the number of sheets is selected and set in the punching device.

For this reason, in the conventional punching device, it is necessary to prepare the die sets by the number corresponding to the type of the prescribed number of shots, which causes the cost increase of the device.
In addition, when changing the type of photographic film strip to be manufactured, the punching device must be stopped in order to replace the die set, resulting in poor production efficiency. Further, since the die set requires the number of punches and dies corresponding to the number of shots specified, for example, there is a drawback that the die set for taking 24 or 36 sheets is large in size.

It is an object of the present invention to provide a punching method and apparatus which do not require die set replacement work even when the prescribed number of shots is changed, and which reduce the cost and size of the die set.

[0009]

In order to solve the above problems, in the punching device according to the first aspect of the present invention, the continuous film is alternated between a first range having a variable length and a second range having a constant length. In order to form the perforation pattern only within this first range, (a) when the total length of the first range and the second range is the specified carry amount, a continuous film is formed along the carry path. (B) A plurality of punches and a plurality of dies forming each die set are driven simultaneously by simultaneously driving all of the plurality of die sets arranged along the conveyance path of the continuous film. By forming a part of the perforation pattern in the first range, (c) transferring only the rest of the specified transfer amount of the continuous film along the transfer path, (d) a part of a plurality of die sets Together with In the case where the part is a plurality of die sets, these are set to be continuous, and the determined part of the die sets are simultaneously driven to form the rest of the perforation pattern.

In the perforating method according to the present invention, after the perforation pattern is formed in the first range, the perforation pattern is cut in the subsequent second range, and the perforation pattern is not formed on both sides of the first range. The step (E) for separating the film strip having the leader and the film trailer from the continuous film is further performed.

In the perforation method according to the present invention, the continuous film is a continuous photo film in which a plurality of photographed frames can be photographed at a constant pitch L within the first range, and each photographed frame is indexed to identify each photographed frame. For each, at least one perforation is assigned.

In the punching method according to claim 4, the plurality of die sets are at least first and second die sets,
The first die set forms perforations in a length L × A (A is an integer of 2 or more), and the second die set has a length L × A.
A perforation is formed in B (B is an integer of 2 or more), and within the first range of the length L × (2A + B), the first die set is driven twice and the second die set is driven once. The perforation pattern is formed on the.

In the perforating method according to the fifth aspect, a plurality of perforations are formed in a line along at least one side of the continuous photographic film.

In the punching method according to the sixth aspect, two adjacent perforations are assigned to each of the photographed frames.

According to the seventh aspect of the present invention, in the step (e), the film trailer is provided with a special perforation for locking the spool of the cartridge at the same time when the continuous photographic film strip is cut off. .

In the punching method according to the eighth aspect, an effective exposure range having a length corresponding to the type of the prescribed number of images to be photographed and a non-effective exposure range having a constant length are alternately partitioned, and the effective exposure range is set within the effective exposure range. A perforation pattern is formed only within an effective exposure range on at least one side of the continuous photo film so that at least one perforation is assigned to each frame in order to determine each frame to be photographed at a constant pitch. At this time, (a) a first die set forming a perforation in a length L × A (A is an integer of 2 or more) and a second die set forming a perforation in a length L × B (B is an integer of 2 or more). At least preparing a die set, (b) a first type having a first range length L × A, a second type having a first range length L × (A + B), and a first range length Specifies one type from the third type of L × (2A + B), and (c) sums the first range and the second range to 1 in accordance with the type specification in step (b). To determine one of a first transport mode in which the transport is performed once and a second transport mode in which the total of the first range and the second range is divided into the first transport and the second transport; d) When the first type is designated, the first die set is driven after the continuous photo film is transported in the first transport mode. (e) When the second type is designated, the continuous photo in the first transport mode. Driving the first die set and the second die set at the same time after the film is conveyed. (F) When the third type is designated, after the first conveyance in the second conveyance mode, the first die set and the second die set are conveyed. Drive two die sets at the same time, Driving only the first die set after conveying 2nd, (g) until there is a type change step (d), (e)
Alternatively, the step (f) is repeated.

In the perforating method according to the present invention, after the perforation pattern is formed in the first range, the perforation pattern is cut in the subsequent second range, and the perforation pattern is not formed on both sides of the first range. A photographic film strip having a leader and a film trailer is further adapted to perform step (h) for separating from a continuous photographic film.

In the perforating apparatus according to the tenth aspect of the present invention, the continuous film is divided into a first range having a variable length and a second range having a constant length alternately, and only within the first range on at least one side of the continuous film. A plurality of die sets, each of which has a plurality of punches and a plurality of dies, arranged along the conveying path of the continuous film to form a perforation pattern; At least one of a plurality of die sets determined in advance for each divided conveyance, and a film conveyance means for dividing a prescribed conveyance amount, which is the sum of the length of one range and the length of the second range, into a plurality of divided conveyances. And a driving means for driving one to form a perforation pattern within a first range of a length designated by the designating means.

In the punching device according to the eleventh aspect of the present invention, the film transporting means is provided with a first transporting mode and a second transporting mode that are determined according to the length of the designated first range, and in this first transporting mode. In the second transfer mode, the specified transfer amount is divided into two parts, and the plurality of die sets are at least the first and second die sets, and the first die set is the first die set. Length L x A (A is an integer of 2 or more)
To form a perforation, the second die set forms a perforation to a length L × B (B is an integer of 2 or more), and the length designating means has at least a predetermined first type, a second type, Specifies one of the third types, so that when the first type is specified,
In the first transfer mode and only the first die set is driven,
When the second type is designated, the first and second die sets are driven in the first transport mode, and when the third type is designated, the first and second die sets are performed in the first transport in the second transport mode. The die set is driven, and the first die set is driven in the second transport in the second transport mode.

In a perforating method according to a twelfth aspect, the continuous film is divided into a first range having a variable length and a second range having a constant length, and the first range is provided on at least one side of the continuous film.
In order to form the perforation pattern only within the range, (a) prepare a plurality of die sets along the conveyance path of the continuous film, (b) specify the length of the first range, (c) specify Determining the divided conveyance amount at each time in order to divide the prescribed conveyance amount obtained by summing the first range and the second range divided into a plurality of times, and (d) a plurality of dies for each division conveyance. Determining at least one die set so that the ones to be operated in the set are continuous, (e) Each division transfer determined in step (c) so that all of the perforation patterns are formed within the first range. And alternately repeating the operation of at least one die set determined in step (d).

[0021]

In the effective exposure range or the first range in which the length is variable, the predetermined conveyance amount is divided into a plurality of times for divisional conveyance, and all or part of the plurality of die sets is driven for each divisional conveyance. Then, a perforation pattern having a length corresponding to the length is formed. When multiple die sets are driven simultaneously, they are combined so that they are adjacent.

After forming the perforation pattern,
By cutting within the non-effective exposure range or the second range,
Cut into individual or photo film strips. Each film strip or photographic film strip is composed of an effective exposure area or a first area having a perforation pattern, and a perforation-free film leader and a film trailer located on both sides of the effective exposure area or the first area.

In the conventional punching device, the prescribed number of shots is 15
In the case of the three types of single shot, 25 shot, and 35 shot,
A die set for taking 15 shots with 15 punches and die groups, a die set for taking 25 shots with 25 punches and die groups, and a die set for taking 35 shots with 35 punches and die groups are used. . In the present invention, for example, if a die set for taking 15 pictures and a die set for taking 10 pictures are prepared, three or more kinds of photographic film strips can be produced, so that the die set becomes inexpensive and compact. .

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG.
It is composed of a die set unit 10, a fixed-length feeding mechanism 11, and a control section 12 that controls these in a centralized manner, and perforates a belt-shaped continuous photo film (hereinafter, simply referred to as a photo film) 13 that is intermittently conveyed. Then, a perforation for indexing (positioning) the photographed frame is formed. The photo film strip obtained by cutting the strip-shaped photo film 13 at a specified length for one film has three types of the specified number of images, for example, 15, 25, and 35.
As shown in FIG. 2, a perforation pattern is formed on one side within the effective exposure range. Each perforation 14 is one shooting frame 15
Is formed at a pitch of L1 along the length of the film, and is not formed within the non-effective exposure range. In FIG. 2, reference numerals 16 and 17
Are the leading and trailing edges of the film of the photographic film strip, which are shown in phantom lines.

The die set unit 10 is composed of first, second, and third die sets 20, 21, 22 which are sequentially arranged from the downstream side in the film transport direction. The first die set 20 is composed of a punch holder 23, a die holder 24, guide pins 25 and 26, bushes 27 and 28, and the like. Punch holder 2
3, punches 30 are arranged 15 times at a pitch of L1 along the film transport direction, and dies 31 are provided on the die holder 24 along the film transport direction by L1.
15 are arranged at a pitch of. The bushes 27 and 28 provided on the punch holder 23 are fitted to the guide pins 25 and 26 provided on the die holder 24, and the punch holder 23 moves up and down with respect to the die holder 24 between the retracted position and the punching position. Each die 31 at the punching position by performing
Each of the punches 30 is inserted into the punch for punching. The vertical movement of the punch holder 23 is performed by a pneumatic or hydraulic stroke type cylinder 32 connected to the punch holder 30.

The second die set 21 has 10 punches 33 arranged in the film transport direction at a pitch of L1 and 10 punch dies 34 arranged in the film transport direction at a pitch of L1 in the film transport direction. Die holder 36, guide pins 37 and 38, bushes 39 and 40,
And a cylinder 41. The third die set 22 has a punch holder 4 in which ten punches 42 are arranged at a pitch of L1 along the film transport direction.
3, a die holder 45 in which ten dies 44 are arranged at a pitch of L1 along the film transport direction, guide pins 46 and 47, bushes 48 and 49, and a cylinder 50
It consists of These first, second, and third die sets 20, 21, and 22 have all the punches 3 provided with the intervals in the punch holders 23, 34, and 43.
0, 33, and 42 are arranged to have a pitch of L1.

The fixed length feeding mechanism 11 is a motor (not shown).
Suction roller 5 that rotates at a constant speed when driven by
2 and a nip roller 53 that holds the film edge between the suction roller 52 and the suction roller 52. The photographic film 13 is fed at a fixed length for a prescribed length corresponding to the number of prescribed photographing numbers. The suction roller 52 is internally connected to a suction tube, and sucks the photographic film 13 from a large number of items provided on the surface thereof. Instead of the suction roller 52 and the nip roller 53, a pinch roller, a sprocket type roller or the like may be used. In the case of a sprocket type roller, a means such as a cam or a solenoid is provided between a position where the sprockets radially arranged so as to have the same pitch as the perforations 14 are projected from the outer peripheral surface of the roller and a position retracted from the outer peripheral surface at any timing. It can be controlled so that it can be taken in and out freely.

An operation unit 54 is connected to the control unit 12 for the operator to input the type of the prescribed number of shots, and the die sets 20 and 2 are set according to the type of the prescribed number of shots.
1 or 22 is determined to be one downstream of the film feeding direction or a plurality of combinations in order from the downstream side, the cylinders are controlled according to the determined number of die sets, and the number of shots is determined according to the type. A sequence program for controlling the film feed amount of the constant length feed mechanism 11 is stored in advance.

Next, the operation of the above structure will be described with reference to FIG. When the operator inputs the prescribed number of images to be shot on the operation unit 54, for example, 15 images, the control unit 12 controls the fixed-length feed mechanism 11 as shown in FIG. The photographic film 13 is fed by a specified length of minutes, and then the sequence of operating only the cylinder 32 is repeated. As a result, only the first die set 20 is activated, so that 15 perforations 14 are formed at the pitch of L1 only within the effective exposure range.

When the operator inputs the prescribed number of images to be shot on the operation unit 54, for example, 25, as shown in FIG. 5, the control unit 12 controls the fixed-length feeding mechanism 11 to respond to 25 images. Send the photo film 13 for the specified length,
After that, the sequence of simultaneously operating the cylinders 32 and 41 is repeated. As a result, the first and second die sets 20 and 21 operate, so that 25 perforations 14 are formed within the effective exposure range at a pitch of L1.

When the operator inputs the prescribed number of images to be shot on the operation unit 54, for example, 35, as shown in FIG. 6, the control unit 12 controls the fixed-length feeding mechanism 11 to respond to 35 images. Send the photo film 13 for the specified length,
After that, the sequence in which the cylinders 32, 41 and 50 are simultaneously operated is repeated. This activates the first, second, and third die sets, so that 35 perforations 14 are formed within the effective exposure range at a pitch of L1.

In the above embodiment, the perforation pattern is perforated at one end in the film width direction, but the present invention is not limited to this, and may be perforated on both sides in the film width direction. Further, the film feeding speed of the constant length feeding mechanism 11 may be changed according to the type of the prescribed number of images to be photographed. By doing so, even when the effective exposure range is long, the perforation cycle can be shortened and the processing time can be shortened.

Further, in the above embodiment, when the number of types of the prescribed number of photographing is n, the punching is performed by using n die sets. However, the present invention is not limited to this, and a plurality of prescribed number of photographing is required. If there is a die set with the same number of punches among the punch numbers of each die set obtained from, the die set with the same number of punches may be omitted. In this case, the die set determined by the number determining means is operated once or a plurality of times within the specified length for one photographic film.

In the case shown in FIG. 1, the punches 30, 3 of the first, second, and third die sets 20, 21, 22 are respectively.
Since the numbers of 3, 44 are 15, 10, and 10 in order, the third die set 22 is omitted. In this case, it is necessary to change the perforation method when perforating the photographic film so that the specified number of images is 35.

That is, the control unit 12 controls the fixed-length feed mechanism 11
The photo film 13 is fed within a specified length corresponding to the specified number of shots by controlling the cylinders 32, 41.
To simultaneously drive the first and second die sets 20, 21. After that, the fixed length feeding mechanism 11 is activated to
After feeding the photo film 13 by the length corresponding to the punch, the cylinder 41 is operated to drive only the second die set 21, and the perforation of 35 pieces is fixed to the specified length for taking 35 pictures. Form with pitch. In this way, since it is only necessary to arrange the minimum number of die sets according to the type of the prescribed number of images to be photographed, the cost of the apparatus can be improved and the size can be improved.

In the above embodiment, each punch holder 2
Cylinders 32, 41, 50 on 3, 34, 43 respectively
Although the driving means such as the above is provided, the punch holders 23, 34, 43 may be vertically moved by one cylinder. In this case, the punch holders 23, 34,
Since all of 43 move up and down, it is necessary to provide means for keeping the punch holder apart from the die holder other than the one determined by the control unit according to the type of the prescribed number of shots.

In FIG. 7, cams 61, 62 and 63 are provided between the ram 64 connected to the cylinder 60 and the punch holders 23, 34 and 43 so as to be vertically movable and rotatable. There is. Each of the cams 61, 62 and 63 is used to select the punch holder to be punched out of the punch holders 23, 34 and 43. The position of the cam 62 (piercing position) and the position of the cam 63 shown in FIG. The rotation control is performed between the position and the non-drilling position. Each punch holder 23, 34, 43 has a guide pin 25, 26, 37, 3
The urging force of the compression springs 65 inserted into the cams 8, 46, 47 keeps them in contact with the cams 61, 62, 63 at all times.

The control unit 66 controls the rotation of the cams 61, 62, 63 according to the specified number of shots. This control causes the corresponding cam to rotate to the non-punching position for the punch holders that do not want to punch. As a result, the distance between the punch holder and the die holder is increased, and the cylinder 60
The punch and die do not engage with each other even by the operation of. According to the illustrated example, the punches 30 and 33 with the punch holders 23 and 34 are engaged with the dies 31 and 36 with the die holders 24 and 35 by the operation of the cylinder 60,
The punch 42 of the punch holder 43 is the die holder 45.
It does not engage the die 44. Further, as a method of freely engaging the punch holders 23, 34, 43 and the ram 64, in addition to the above-mentioned cams 61, 62, 63,
Spacer blocks, cylinders, etc. can also be used. According to this, since the ram 64 and the cylinder 60 have a common structure for each punch holder 23, 34, 43,
The apparatus can be made compact and simple. The cylinder 60 can be replaced with a cam that rotates or a ram 64 that moves up and down by a crank mechanism.

By the way, when the photographed frames of the photographic film strip are positioned on the exposure aperture on the camera side, a plurality of perforations are detected by a plurality of sensors rather than one perforation by one sensor. Can be done more accurately. As shown in FIG. 8, this type of photographic film strip has a perforation group 6 composed of two adjacent perforations 14.
7 is a format in which the images are arranged in the effective exposure range at the same L1 pitch as that of the shooting frames 15. The pitch of the two perforations 14 is L2.

The punching device shown in FIG. 9 is for forming the perforation pattern of the photographic film 13 shown in FIG. This punching device is provided with punches 30,3.
Punch groups 69, 70, 71 and die group 7 in which 3, 42 and dies 31, 36, 44 are arranged at a pitch of L2.
2,72,74 and each punch holder 2 at the pitch of L1
3, 34, 43 and the die holders 24, 35, 45 are arranged.

In the punching device of the above embodiment, the perforations 14 for positioning the photographing frames are punched in the exposure aperture.
The take-up perforation group 76, the end mark perforation group 77, the perforation means such as the spool locking hole 78, and the leading edge of the film leader and the film trailer provided in the non-effective exposure range shown in FIG. In order to trim the end edges into a predetermined shape, the shape is cut into the shapes shown by reference numerals 16 and 17, and the trimming means etc. for cutting out the hatched portions are provided side by side, and even if these are processed at the same time as perforation. Good. Further, when the number of punches in one die set is large, it may be divided into a plurality of pieces in order to maintain accuracy. In this case, it is necessary to provide each die set with a guide pin or the like for guiding the punch holder and the die holder.

Further, the perforation apparatus of the present invention forms the perforation pattern on the photographic film in a scattered manner. However, in addition to the photographic film, a web-like sheet formed of a resin film, paper or the like material is used. Is also available.
In this case, the portion corresponding to the effective exposure range shown in FIG. 2 is the first range, and the portion corresponding to the non-effective exposure range is the second range.

[0043]

As described in detail above, according to the present invention, the specified length for one line is divided into a plurality of times for divisional conveyance,
The length of the first range or the effective exposure range is changed because all or part of the plurality of die sets is driven for each conveyance to form a perforation pattern having regularity in the first range or the effective exposure range. Even in this case, it is not necessary to replace the die set, so that the production efficiency can be improved.

Further, since a plurality of die sets are used in combination, the number of punches and dies for each die set is small, so that the die set can be made compact and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic view of a punching device of the present invention.

FIG. 2 is an explanatory diagram showing a continuous photographic film in which a perforation pattern is formed so that one perforation is assigned to a photographed frame.

FIG. 3 is a flowchart showing the operation of the punching device.

FIG. 4 is a timing chart of the punching device when the prescribed number of shots is 15.

FIG. 5 is a timing chart of the punching device when the prescribed number of shots is 25.

FIG. 6 is a timing chart of the punching device when the prescribed number of shots is 35.

FIG. 7 is a schematic view showing another example of a punching device.

FIG. 8 is an explanatory diagram showing a continuous photo film in which a perforation pattern is formed so that two perforations are assigned to a photographed frame.

9 is a schematic view of a punching device used to form the perforation pattern shown in FIG.

FIG. 10 is an explanatory view showing a continuous photographic film during the production of photographic film strips having different formats. 10 Die set unit 11 Fixed-length feeding mechanism 12 Control part 13 Continuous photo film 14 Perforation 15 Photographing frame 20 First die set 21 Second die set 22 Third die set 30, 33, 42 Punch 31, 36, 44 Die

Claims (12)

(57) [Claims] 1. A continuous film is alternately divided into a first range having a variable length and a second range having a constant length, and a perforation pattern is formed only within this first range.
A perforating method comprising the steps of: (A) The continuous film is conveyed along the conveying path by a part of the specified conveying amount which is the sum of the lengths of the first range and the second range, and (b) the continuous film is arranged along the conveying path of the continuous film. Driving all of the plurality of die sets at the same time, and forming a part of the perforation pattern within the first range by the plurality of plates and the plurality of dies forming each die set, (c) along the transport path The continuous film is conveyed by the rest of the specified conveying amount, and (d) a part of the plurality of die sets is determined, and when this part is a plurality of die sets, these are made continuous, and Driving some of the determined die sets simultaneously to form the rest of the perforation pattern. 2. The punching method according to claim 1, further comprising the following step (e). (E) A film strip having a film leader and a film trailer having no perforation pattern formed on both sides of the first range after forming a perforation pattern in the first range and then cutting in a second range following the perforation pattern. To disconnect from the continuous film. 3. A continuous film is a continuous photo film in which a plurality of photographed frames can be photographed at a constant pitch L within a first range, and at least one photographed frame is used for indexing each photographed frame. The perforation method according to claim 2, wherein perforations are assigned. 4. The plurality of die sets are at least first and second die sets, and the first die set has a length L × A.
Forming a perforation (where A is an integer of 2 or more),
The second die set forms a perforation in a length L × B (B is an integer of 2 or more), and the length L is set by driving the first die set twice and driving the second die set once.
The perforation method according to claim 3, wherein the perforation pattern is formed within a first range of × (2A + B). 5. A perforating method according to claim 4, wherein a plurality of perforations are formed in a line along at least one side of the continuous photographic film. 6. A perforation which is adjacent to each of the photographed frames is given to each of the photographed frames.
The perforation method described. 7. The punching method according to claim 5, wherein step (e) forms a special perforation on the film trailer for resting on the spool of the cartridge, at the same time when the continuous photographic film strip is cut off. 8. An effective exposure range having a length corresponding to the type of the prescribed number of images to be photographed and a non-effective exposure range having a certain length are mutually divided, and images should be photographed at a constant pitch within this effective exposure range. A perforation method for forming a perforation pattern only within an effective exposure range on at least one side of a continuous photographic film so that at least one perforation is assigned to each photographic frame in order to identify each photographic frame, (a) At least a first die set forming a perforation with a length L × A (A is an integer of 2 or more) and a second die set forming a perforation with a length L × B (B is an integer of 2 or more) are prepared. (B) a first type having a length of the first range L × A, a second type having a length of the first range L × (A + B), and a length of the first range L × ( 2A + B 1 type out of the 3rd type and (c) the 1st range and the 2nd range are conveyed at one time according to the type designation in step (b). Determining one of the transport mode and the second transport mode in which the total of the first range and the second range is divided into the first transport and the second transport, and (d) the first type is When designated, drive the first die set after the continuous photo film is transported in the first transport mode. (E) When the second type is designated, after the continuous photo film is transported in the first transport mode, Driving the first die set and the second die set at the same time, (f) When the third type is designated, the first die set and the second die set are simultaneously driven after the first conveyance in the second conveyance mode. Drive and then after the second transport Driving only one die set, (g) until there is a type change step (d), (e)
Alternatively, the step (f) is repeated, and 9. The punching method according to claim 8, further comprising the following step (h). (H) A photographic film having a perforation pattern formed in the first area, and then cut in the second area following the perforation pattern, and having a film leader and a film trailer on both sides of which the perforation pattern is not formed. To separate the strip from the continuous photo film. 10. A continuous film is alternately divided into a first range having a variable length and a second range having a constant length, and a perforation pattern is formed only in the first range on at least one side of the continuous film. Device, a plurality of die sets each having a plurality of punches and a plurality of dies, arranged along the conveying path of the continuous film, a means for designating the length of the first range, and a length of the first range. And a length of the second range, the film transport means for dividing the specified transport amount into a plurality of divided transports, and at least one of a plurality of predetermined die sets is driven for each divided transport. And a driving means for forming a perforation pattern within a first range of a length designated by the designating means, and a punching device. 11. A film carrying means is provided with a first carrying mode and a second carrying mode which are determined according to a designated length of a first range, and in the first carrying mode, a specified carrying amount is carried once. In the second transfer mode, the specified transfer amount is transferred in two steps, and the plurality of die sets are at least
The second die set, the first die set has a length L × A
Forming a perforation (where A is an integer of 2 or more),
The second die set forms a perforation with a length L × B (B is an integer of 2 or more), and the length designating means has at least a predetermined first type, a second type, and a third type.
One of the types is specified, so that when the first type is specified, only the first die set is driven, and when the second type is specified, the first transfer mode is designated. And the first and second die sets are driven, and the third type is designated, the first and second die sets are driven in the first transport in the second transport mode, and the third die in the second transport mode is driven. 11. The punching device according to claim 10, wherein the first die set is driven in the double transfer. 12. A continuous film is alternately divided into a first range having a variable length and a second range having a constant length, and a perforation pattern is formed only in the first range on at least one side of the continuous film. (A) preparing a plurality of die sets along the transport path of the continuous film, (b) specifying the length of the first range, and (c) the specified first range and the first range. To determine the divided conveyance amount at each time in order to divide the prescribed conveyance amount obtained by adding the two ranges into a plurality of times and divide the conveyance amount, (d) For each divided conveyance, which one of the plurality of die sets should be operated By determining at least one die set so as to be continuous, (e) each of the divided conveyances determined in step (c) and the operation of at least one die set determined in step (d) are alternately repeated. Forming a perforation pattern in a first range, drilling method characterized by comprising the city.