JPH0915829A - Film punching device - Google Patents

Abstract

PURPOSE: To provide a punching device in which a plurality of engaging holes used for the connection of a reader or the winding core connection of a film cartridge can be efficiently formed with high precision. CONSTITUTION: A film guide 4 is mounted on a base 1, and a lower edge 8 is provided between a pair of guide pieces 6 formed on the film guide 4. A film insert groove is formed between both sides of the upper surface of the lower edge 8 and presser pieces 7 provided on the inside of the guide pieces 6. An upper edge holder is supported in such a manner as to be capable of rising and falling by an upper edge guide frame 14 provided on the film guide 4, and an upper edge and a plurality of first punching pin capable of being inserted to the pin holes 12 of the lower edge 8 are provided on its lower surface. A handle 27 for raising and lowering the upper edge holder is mounted on the base plate 1 in such a manner as to be rockable. The top end part of a film F is inserted to the film insert groove, the upper edge holder is lowered by pressing down the handle 27 to laterally cut the top end part of the film F by the lower edge 8 and the upper edge, and a plurality of engaging holes are also formed by the first punching pins inserted to the pin holes 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film punching apparatus for punching a leading end of a film into a required shape.

[0002]

2. Description of the Related Art In general, when a film is processed by an automatic film processing apparatus, the leading end of the film is connected to a flexible leader, and the film is transferred to a film developing section by the leading of the leader. I try to make it.

For connecting the leader and the film, a method of applying a splice tape across both members is known, but the splicing tape, which is unreliable in connection and expensive, can be reused. There is an economic problem because it cannot be done.

[0004] In order to solve such a problem, the present applicant has already proposed a connecting method in which a protruding piece is provided at the rear end of the reader in the transport direction and the front end of the film is disengaged from the protruding piece. doing.

In this case, it is necessary to provide an engaging hole at the leading end of the film with which the above-mentioned projecting piece can be engaged.
In this case, since there is a possibility that the leader and the film may be relatively inclined, it is necessary to form a plurality of engagement holes and to accurately drill the holes in accordance with the positions of the protruding pieces provided on the leader.

[0006] In printing a photograph, the film is taken up by a spool 51 incorporated in a film cartridge 50 shown in FIG. 11, and when the image density of the film is detected by a scanner unit, or when a color image of the film is detected. When printing on a photographic photosensitive material, a printing method has been adopted in which a film F is drawn from the film cartridge 50, and after each processing, the film F is rewound into the film cartridge 50.

[0007] In the adoption of the above-described printing process,
In order to wind and rewind the film, it is necessary to accurately form a plurality of engagement holes 36 at the end of the film which can be engaged with the plurality of projections 52 provided on the spool 51.

When the film F is pulled out from the film cartridge 50 in the developing or printing process of the film, if the film F is pulled out while being in contact with the inner surface of the film cartridge 50, the film F may be damaged. .

In order to solve such a problem and to facilitate the drawing of the film, Japanese Patent Application Laid-Open No. 2-27253 has been proposed.
In the film cassette described in JP-A-9, a pair of flanges are provided on a spool provided in the cassette shell, and an annular lip provided on the outer periphery of the flange suppresses expansion of the film roll wound on the spool. However, the film is prevented from contacting the inner surface of the cassette shell.

A notch 64 shown in FIG. 10 is formed at one end of the outermost winding portion of the film roll, and a tip portion 65 is provided in front of the notch 64. The notch 64 is engaged with the annular lip. The tip part is released from the outer peripheral surface of the film roll, and when the spool rotates in the film unwinding direction, the chip part is guided to the film path by the film peeling guide provided on the inner surface of the cassette shell, so that the film can be easily pulled out. It is trying to make it.

When the film after development processing is wound up using the above-described film cassette (film cartridge), if the notch is torn due to damage of the developed film, the notch is removed. Since it cannot be engaged with the annular lip, it is not possible to create a state in which the film wound on the spool can be easily pulled out, and it is necessary to recreate the notch.

[0012]

SUMMARY OF THE INVENTION It is a first object of the present invention to provide a film punching device capable of easily forming a plurality of engaging holes at an end of a film with high precision.

A second object of the present invention is to provide a film punching device which can easily form a notch in a side edge of a film.

[0014]

In order to solve the above-mentioned first problem, in the first invention, a positioning piece for positioning the leading end of a film on a base plate, and a film is inserted toward the positioning piece. A film guide having a pair of guide pieces for guiding both sides of the film to be mounted is attached, and a lower blade for forming a film insertion groove between the guide pieces and a pressing piece provided inside the guide piece is provided, An upper blade that vertically mounts the upper blade holder on the upper blade guide frame provided on the positioning piece of the film guide, and cuts the leading end of the film in the width direction with the lower blade on the lower surface of the upper blade holder; A plurality of first punching pins for punching an engagement hole at a leading end of a film with a pin hole formed in a lower blade, and a handle for vertically moving an upper blade holder is swingably mounted on the base. Has adopted .

Here, even in the case of a rolled film, the rear end of the film pressing member is placed on one guide piece of the film guide so that the engaging hole can be accurately formed in the film. It is preferable that the film holding member is mounted so as to be swingable, and the elasticity of the elastic member is applied to the film holding member so that the leading end of the film holding member comes into contact with the upper surface of the lower blade.

Further, in order to solve the second problem, a second
According to the invention, a film guide having a positioning piece for positioning the leading end of the film and a pair of guide pieces for guiding both sides of the film inserted toward the positioning piece is mounted on the base plate, The lower blade which forms a film insertion groove between the pressing piece provided inside the guide piece is provided, and the upper blade holder is mounted on the upper blade guide frame provided on the positioning piece of the film guide so as to be vertically movable,
At the same time as cutting the tip of the film in the width direction with the lower blade on the lower surface of the upper blade holder, an upper blade that forms a notch on the side edge of the film is provided, and the upper blade holder is moved up and down on the base. Uses a structure that allows the handle to swing freely.

[0017]

In the film punching apparatus according to the first aspect of the present invention, the handle is pushed down while the leading end of the film is inserted into the film insertion groove and the leading end of the film is brought into contact with the positioning piece of the film guide. Is lowered, and the leading end of the film is cut in the width direction by the upper blade and the lower blade attached to the upper blade holder, and at the same time, an engaging hole is formed by the first punching pin and the pin hole.

In the second invention, the leading end of the film is cut in the width direction by lowering the holder, and a notch is formed on one side of the leading end of the film.

[0019]

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

As shown in FIGS. 1 and 2, the base plate 1
Has a waste storage space 2 opening at the lower surface, and a lower opening of the waste storage space 2 is closed by a cover 3 detachably attached to the lower surface of the base plate 1.

A film guide 4 is mounted on the upper surface of the base plate 1. The film guide 4 has a configuration in which a pair of guide pieces 6 are provided at both ends of a positioning piece 5. The distance between the inner surfaces of the pair of guide pieces 6 is the film F shown in FIG.
A pressing piece 7 for preventing the film F from floating is provided at the inner rear portion of each guide piece 6.

A lower blade 8 is provided between the pair of guide pieces 6 of the film guide 4. The lower blade 8 is fixed to the base plate 1, and a film insertion groove 9 is provided between an upper surface thereof and the pressing piece 7.
Are formed.

As shown in FIG. 5, the lower blade 8 has a protruding piece 10 tapered on both sides at its distal end, and the outer peripheral edge of the upper surface of the protruding piece 10 is a cutting blade 11. Also, the protruding piece 1
0 has two pin holes 12 on the left and right. Further, a pin hole 13 is formed at one rear side of the lower blade 8.

As shown in FIGS. 1, 2 and 5, the upper blade guide frame 14 mounted on the film guide 4 has a pair of side plates 15, and two flat plate portions 16 are provided between the side plates 15. 1
7 are provided above and below. The lower flat plate portion 17 extends rearward, and a rectangular tube portion 18 is provided at a rear end thereof.

The upper and lower flat plate portions 16, 17 of the upper blade guide frame 14
Are provided on the left and right with pin insertion holes 19 facing up and down,
Guide pins 21 provided on the upper surface of the upper blade holder 20 are slidably inserted into the respective pin insertion holes 19.

The guide pin 21 is formed with a pin hole 22 penetrating in the radial direction, and the pin 2 inserted into each pin hole 22.
Both ends of 3 are slidably inserted into vertically long slots 24 formed in the side plate 15 of the upper blade guide frame 14.

An arm 25 is provided on one side of the upper blade guide frame 14. An elongated hole 26 extending in the longitudinal direction of the arm 25 is provided in the middle of the arm 25, and the pin 23 is slidably inserted into the elongated hole 26.

Both ends of the pin 23 are slidably inserted into long holes 29 formed in both side plates 28 of the handle 27 to prevent them from falling off.

Here, the handle 27 has a pair of support pieces 30 provided such that the tip of the side plate 28 is provided at the tip of the upper surface of the base plate 1.
Is swingably supported via a shaft 31. The arm 25 has its tip end pivotally supported about the shaft 31.

An elastic member 32 composed of a kick spring is supported on the shaft 31, and the elastic member 32 is
Is pressed upward.

For this reason, when the handle 27 is depressed,
While the arm 25 swings in the same direction as the handle 27,
The upper blade holder 20 descends.

As shown in FIGS. 3 and 5, on the lower surface of the upper blade holder 20, the film F is cut in the width direction with the lower blade 8, and the both ends of the film F are tapered at both ends. An upper blade 34 forming a part 33 (see FIG. 6B) is attached. Further, two first punching pins 35 are fixed to the lower surface of the upper blade holder 20. First punching pin 3
5 is inserted into the pin hole 12 of the lower blade 8 when the upper blade holder 20 is lowered, and the pin hole 12 forms an engaging hole 36 at the leading end of the film F.

As shown in FIGS. 1, 4 and 5, a pin hole 37 is provided in the upper cylindrical portion 18 of the upper blade guide frame 14 so as to face vertically. A second punching pin 38 is slidably inserted into the pin hole 37, and the second punching pin 3
The pin 4 is inserted into the radially penetrating insertion hole 39 formed in
0 is inserted. The pins 40 are inserted into vertically long slots 41 formed on both sides of the rectangular tube portion 18. Further, the end portion of the pin 40 is slidably inserted into a long hole 42 formed at the rear end portion of the arm 25 to prevent it from coming off.

The second punching pin 38 is moved up and down by the swing of the arm 25, and is inserted into the pin hole 13 thereunder when descending, and the detection hole 43 is inserted into the film F with the pin hole 13.
(See FIG. 6B).

As shown in FIGS. 2 and 4, one guide piece 6 of the film guide 4 is provided with a pair of projecting pieces 44, and the projecting piece 44 is provided with a pin 45 behind the film pressing member 46. The end is rotatably supported. The rear end of the film holding member 46 is pressed upward by an elastic member 47 formed of a kick spring supported by a pin 45, and the front end is pressed against the upper surface of the lower blade 8.

Now, the leading end of the film F is inserted into the film insertion groove 9, the leading end of which is in contact with the positioning piece 5 of the film guide 4 for positioning.
When the handle 27 is pressed down in a state where the film F is pressed in step 6, the upper blade holder 20 is lowered, and the upper blade 34 and the lower blade 8 fixed to the lower surface of the upper blade holder 20 move the leading end of the film F in the width direction. The film F is cut, and a tongue portion 33 tapered on both sides is formed at the leading end of the film F.

When the upper blade holder 20 is lowered, the first punching pin 35 provided on the lower surface thereof is inserted into the pin hole 12, and the engaging hole 36 is formed at the leading end of the film F, and the handle 27 is pushed down. As a result, the arm 25 swings in the same direction as the handle 27, so that the second punching pin 38
Is lowered and inserted into the pin hole 13, and a detection hole 43 is formed at one end of the film F.

It is to be noted that the scraps of the film F are prevented from entering the waste storage space 2 from the respective discharge holes 48 formed in the base plate 1 and scattering to the surroundings.

In the punching of the film F as described above, both sides of the film F are inserted into the film insertion grooves 9 and are pressed by the film pressing members 46.
Even if the film F is strongly wound, the tongue portion 33 can be reliably formed, and the two engagement holes 36 and the detection holes 43 can be reliably and accurately formed.

The detection hole 43 is used for detecting the rear end of the film F wound around the core 51 of the film cartridge 50 shown in FIG.
When the film F is sent out from the printer, the detection hole 43 is detected and the feeding of the film F is stopped.

FIGS. 7 to 10 show a second embodiment of the present invention. In this embodiment, the arm 2 for raising and lowering the second punching pin 38 by operating the first punching pin 35, the second punching pin 38, and the handle 27 described above.
The lifting mechanism such as 5 is removed.

The lower blade 60 mounted on the base plate 1
A V-shaped notch 61 is provided on one side of the upper blade holder 20.
A V-shaped protrusion 63 facing the cutout 61 is provided on one side of the inner periphery of the U-shaped upper blade 62 attached to the lower surface of the U-shaped.

Since the other structure is the same as that of the above-described embodiment shown in FIGS. 1 to 5, the same components are denoted by the same reference numerals and description thereof is omitted.

In the punching apparatus having the above-described structure, the film F is inserted into the film insertion groove 9 and the upper blade holder 20 is lowered by pushing down the handle 27 so that the lower blade 60 and the upper blade 62 form the film F. Can be cut in the width direction and the film F
A notch 64 as shown in FIG.

[0045]

The present invention is configured as described above.
The following effects are obtained.

In the film punching device according to the first aspect of the present invention, a simple operation of inserting the leading end of the film into the film insertion groove and pushing down the handle with the leading end of the film in contact with the positioning piece is performed. A plurality of engagement holes can be formed at the same time as the tip portion can be cut in the width direction, and the drilling operation can be performed extremely efficiently.

Further, since both sides of the film are supported by the film insertion grooves, a plurality of engagement holes can be formed with extremely high precision.

In the film punching device according to the second aspect, since the film is pressed by the film presser, the engaging hole can be formed with high accuracy even if the film is strongly wound.

In the film punching apparatus according to the third aspect, the film guide is provided with a punching pin which moves up and down by operating a handle, and the lower blade is provided with a pin hole for inserting the punching pin, thereby forming an engaging hole. At the same time, a detection hole can be formed.

In the film punching device according to the fourth aspect, the notch can be easily formed in the side edge of the film, and the film can be easily drawn out from the film cartridge.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of a punching device according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is an exploded perspective view of the above.

FIG. 6 (a) is a front view showing the film before punching, and (b) is a front view showing the film after punching.

FIG. 7 is a longitudinal sectional front view showing another embodiment of the punching device according to the present invention.

8 is a sectional view taken along the line IIX-IIX in FIG. 7;

FIG. 9 is a perspective view showing a lower blade and an upper blade of the above.

FIG. 10 is a front view showing a part of the film.

FIG. 11 is a partially cutaway perspective view showing a film cartridge.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base plate 4 Film guide 5 Positioning piece 6 Guide piece 7 Pressing piece 8 Lower blade 9 Film insertion groove 12 Pin hole 13 Pin hole 14 Upper blade guide frame 20 Upper blade holder 27 Handle 34 Upper blade 35 First punching pin 38 Second Punching pin 46 Film holding member 47 Elastic member 60 Lower blade 62 Upper blade

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G03C 3/00 555 G03C 3/00 555D

Claims (4)

[Claims] 1. A film guide having a positioning piece for positioning the leading end of a film and a pair of guide pieces for guiding both sides of the film inserted toward the positioning piece is mounted on a base plate. The lower blade which forms a film insertion groove between the pressing piece provided inside the guide piece is provided, and the upper blade holder is mounted on the upper blade guide frame provided on the positioning piece of the film guide so as to be vertically movable, On the lower surface of the upper blade holder, an upper blade for cutting the leading end of the film in the width direction with the lower blade, and a plurality of punching holes for engaging the leading end of the film with a pin hole formed in the lower blade. A film punching device provided with a first punching pin, and a handle for vertically moving the upper blade holder is swingably mounted on the base. 2. A rear end portion of a film pressing member is swingably mounted on one of the guide pieces of the film guide, and the elasticity of an elastic member is applied to the film pressing member so that a distal end portion of the film pressing member is a lower blade. The film punching device according to claim 1, wherein the film punching device is in contact with an upper surface of the film. 3. A second punching pin, which is moved up and down by a handle operation, is attached to the film guide so as to be able to move up and down.
3. A pin hole for forming a detection hole on one side of the leading end of the film with the second punching pin on the lower blade.
3. The film punching apparatus according to 1. 4. A film guide having a positioning piece for positioning the leading end of the film and a pair of guide pieces for guiding both sides of the film inserted toward the positioning piece is mounted on the base plate, The lower blade which forms a film insertion groove between the pressing piece provided inside the guide piece is provided, and the upper blade holder is mounted on the upper blade guide frame provided on the positioning piece of the film guide so as to be vertically movable, At the same time, the lower edge of the upper blade holder and the lower blade are cut in the width direction with the lower blade, and at the same time, an upper blade that forms a notch on a side edge of the film is provided, and the upper blade holder is moved up and down on the base. A film punching device with a handle that is swingably mounted.