JPH07219157A - Production of film unit with lens - Google Patents

Abstract

PURPOSE:To execute the loading operation of film in a light room state. CONSTITUTION:As to a photographic film cartridge 31, all the photographic film is housed inside a cartridge and a film path is closed by a cover member 47. The loading operation is executed by loading the cartridge 31 in a cartridge housing chamber 34 and closing a bottom cover 60. A rotary shaft for a spool 62 rotating the spool 46 of the cartridge 31 by rotating a rotary shaft for opening/closing 63 from the outside and holding the cover member 47 in an open state is operated to be rotated from the outside, so that the photographic film is fed from the cartridge. The leading edge of the fed photographic film is engaged with the take-up shaft of a film housing chamber and then a rotary shaft for take-up 69 is rotated from the outside, thereby the photographic film fed toward the film housing chamber is taken up to the take-up shaft in a roll state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention In the present invention, the photographic film is wound up to the tip inside the main body of the cartridge when it is not used, and the spool provided in the main body of the cartridge is rotated to send the photographic film to the outside of the cartridge. The present invention relates to a method for manufacturing a lens-fitted film unit in which a photographic film cartridge as described above is loaded in a bright room.

[0002]

2. Description of the Related Art Conventionally, a simple photographing mechanism is provided so that anyone can easily enjoy photographing, and the international standard ISO
Applicant has provided a lens-fitted film unit preloaded with a 135 photographic film with a cartridge as defined in US Pat. This lens-fitted photo film unit is designed to store the photo film cartridge in a light-tight manner by the main body and the back cover.
The cartridge and the film storage chambers provided at the base of the main body store the cartridge and the photo film in the form of a roll that is pulled out from the cartridge, and the exposed photo film is rolled into the cartridge for each shooting. There is.

By the way, in the photographic film cartridge,
In addition to the 135 photo film with a patrone specified in the international standard ISO 1007-1979, when not in use, the photo film is rolled up inside the patrone to the tip, and the spool installed inside the patrone is rotated. As a result, the photographic film is sent out from the outlet of the Patrone to the outside. US Pat. No. 48
No. 34306, JP-A-2-124564, and the like.

Generally, in a photographic film cartridge,
A teremp is attached to block the external light that will enter the delivery port. However, in photo film cartridges of the type that delivers the photo film by rotating the spool, the photo film may not be delivered due to the frictional resistance between the photo film and the telemp when the film is delivered.Therefore, instead of the telemp, the film passage is opened and closed. A photographic film cartridge having a light-blocking lid member is proposed in US Pat. No. 4,221,479 and the like.
According to such a photographic film cartridge, the photographic film is surely delivered when the lid member is opened, and by closing the lid member, the inside of the cartridge can be completely shielded from light, which is convenient for handling and storage. Becomes

As described above, a lens-fitted film unit having a built-in photo film cartridge of the type in which the film can be fed out by rotating the spool is described in Japanese Patent Application No.
-278809. With this lens-equipped film unit, rotate the spool in a dark room to pull out all the photo film from the patrone, and then roll out the photo film that has been pulled out. The manufacturing method is such that the rear cover is put on after being stored in the storage chamber and the storage chamber, respectively.

[0006]

However, since the work of loading the photographic film cartridge is performed in the dark room and the rear cover is attached as described above, it is not only a difficult task but also the dark room is not enough. There is a drawback that the cost of the device increases.

The present invention has been made in order to solve such a problem, and provides a lens-fitted film unit in which a photographic film cartridge of a type in which a film can be fed out by rotating a spool can be loaded in a bright room. It is intended to provide a manufacturing method.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has a photographic film which is wound up to the leading end inside a patrone when not in use, and which is provided in a film passage for freely opening and closing light. The lid member is opened and the spool provided inside the cartridge is rotated to send the photograph film out of the cartridge. The photograph film cartridge is loaded into the cartridge storage chamber.
A second step of closing the openable lid that light-tightly closes the opening formed in the bottom of the cartridge storage chamber; and an openable opening for pivoting the lid member, which is rotatably provided on the lid. Third step of opening the lid member by rotating the rotating shaft for the outside from the outside, and rotating the spool from the outside to send the photographic film out of the cartridge, and the tip of the photographic film sent out is wound in the film storage chamber. Engage with the take-up shaft and then rotate the take-up shaft from the outside to wind the photo film around the take-up shaft inside the film storage chamber. It's something that you do.

[0009]

[Function] The lens-fitted film unit is provided with a cartridge storage room for storing the cartridge and a film storage room for storing the photo film drawn from the cartridge in a roll form. If the lid of the cartridge storage room is closed, The inside of the lens-fitted film unit is light-tightly shielded. Further, the photographic film cartridge has a normal state with the lid member closed. Therefore, after loading the photo film cartridge in the cartridge storage room, close the lid,
After that, the lid member is rotated from the outside of the lens-fitted film unit to hold it in an open state, and then the spool of the photographic film cartridge is rotated from the outside.
As a result, the photographic film is delivered to the inside of the lens-fitted film unit that is light-tightly shielded, so that the photographic film can be loaded in the lens-fitted film unit in a bright room state. The spool can be rotated by rotating the spool rotation shaft, which is rotatably provided on the lid, has one end engaged with the spool and the other end exposed to the outside, and a winding knob from the outside. There is a method of rotating in a direction opposite to the winding direction.

The leading end of the photographic film fed into the lens-fitted film unit is engaged with the winding shaft of the film storage chamber. As a method for engaging the leading end of the photographic film with the winding shaft, for example, a slit opening is formed in the winding shaft, the leading end of the photographic film is inserted into the slit opening, and the winding shaft is rotated after the insertion. The remaining photo film is wound onto the take-up shaft, or the photo film with a take-up perforation at the tip is guided toward the take-up shaft by the leaf spring provided in the film storage chamber, and operated externally. There is a method of engaging the pawl provided on the outer circumference of the rotating winding shaft with the perforation for winding and winding the perforation around the winding shaft. In the former case, the take-up shaft is rotated from the outside after the tip of the photographic film is engaged with the take-up shaft. In the latter case, the take-up shaft may be rotated from the outside before the tip of the photographic film reaches the take-up shaft. According to this, the winding time is shortened and the work efficiency is improved. In this way, by rotating the winding shaft from the outside, the photographic film delivered to the film storage chamber can be stored in a roll form.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 2, a lens-fitted photo film unit (hereinafter referred to as "film unit") 11 comprises a unit main body 12 and an outer case 13 accommodating the same. The outer case 13 is printed in beautiful color, and notes for shooting are printed.

The unit body 12 has a taking lens 14, a viewfinder objective window 15, a shutter button 16, and a remaining film display window 1 which are exposed from the opening of the outer case 13.
7 and a winding knob 18 are provided.

As shown in FIGS. 3 and 4, the unit main body 12 includes a main body base 26, a rear cover 27, and an exposure unit 2.
8, a front cover 29, and a strobe unit 30. After assembling these, a photographic film cartridge 31 is loaded in a bright room.

The exposure unit 2 is provided on the front surface of the main body base 26.
8 is detachably attached. The exposure unit 28 is
An exposure applying mechanism having a taking lens 14, a film counter mechanism, a film winding stopping mechanism, and the like are incorporated, and these are integrated. The rear cover 27 is detachably attached to the back of the main body base 26, and
The photo film 32 and the photo film 6 are housed in a light-tight manner. The front cover 29 is detachably attached to the front surface of the main body base 26.

On the main body base 26, a cartridge storage chamber 34 for storing the cartridge 33, and an unexposed photographic film 32 pulled out from the cartridge 33 are wound on a take-up shaft 35.
Is integrally formed with a film storage chamber 36 which is wound around the outer periphery of and is stored in the form of a roll.

The winding knob 18 is used in the cartridge storage chamber 3
4 is rotatably arranged on the upper surface of the rear cover 4 and is partially exposed from the opening 37 of the rear cover 27 so that it can be operated from the outside, and an outer peripheral tooth row 18a is formed. This dentition 18
A check claw 24 made of a leaf spring is engaged with a. The check claw 24 prevents the winding knob 18 from rotating in the clockwise direction (the direction opposite to the film winding direction).

The cartridge storage room 34 and the film storage room 3
A dark box 38 is provided between the box 6 and the box 6. An exposure opening (see FIG. 4) 39 is formed on the back side of the dark box 38. The exposure opening 39 has a length of 30 m in the film feeding direction.
m, the length in the width direction of the film is 16.7 mm. On the front side of the dark box 38, an opening 40 for guiding the subject light transmitted through the taking lens 14 of the exposure unit 28 to the exposure opening 39 is formed.

A finder eyepiece window 41 is integrally provided at the upper right end of the rear cover 27. Between the viewfinder eyepiece window 41 and the viewfinder objective window 15, the viewfinder lens 4 incorporated in the exposure unit 28 is provided.
2,43 are lined up. In addition to the viewfinder objective window 15 and the shutter button 16, the front cover 29 is integrally provided with an opening 25 for pushing a jig or the like from the outside to separate the check claw 24 from the tooth row 18a of the winding knob 18. Has been. A rod 16a, which will be described in detail later, is planted on the lower surface of the shutter button 16.

As shown in FIGS. 5, 6 and 7, the photographic film cartridge 31 is a cartridge 33 including upper and lower cases 44 and 45, a spool 46, a photographic film 32a wound around the spool 46, and a lid member. 47 and each member 44, 45, 4 except the photo film 32.
6 and 47 are resin molded products.

The upper and lower cases 44 and 45 are integrated by ultrasonic welding. A pair of ribs 48 are integrally formed on the inner wall of the upper case 44, and a pair of ribs 49 are also integrally formed on the inner wall of the lower case 45. These ribs 48, 49 suppress the outermost periphery of the photographic film 32 and regulate the photographic film 32 so that the photographic film 32 does not become loose from the spool 46. Since the ribs 48 and 49 are in contact with the photographic film 32 in the width direction of the photographic film 32 outside the exposed frame range, scratches by the ribs 48 and 49 do not adversely affect the photographic image. .

Port portions 44 are provided on the upper and lower cases 44 and 45.
a and 45a are provided, and the exit 50 of the photographic film 32 and the film passage 51 continuous with the exit 50 of the photographic film 32 are provided at the joint between them.
Is formed. A tip separating claw 52 is provided at the back of the port portion 45a of the lower case 45, and scoops the tip of the photographic film 32 when the spool 46 is rotated and the photographic film 32 is rotated together with the spool 46.

The spool 46 is integrally provided with a pair of flanges 46a, and the photographic film 32 has the flanges 46a.
It is wrapped between a and the emulsion surface inside. Both end faces of the spool 46 are exposed from the cartridge 33,
Keys 46b are respectively formed here, and when the spool 46 is rotated from the outside using the keys 46b, the photographic film 32 is sent out from the tip through the sending port 50 to the outside of the cartridge 33. This photo film 32 has a locking hole provided at the rear end thereof locked by a locking claw 46d provided inside the slit opening 46c of the spool 46.

As shown in the figure, the port portion 45a of the lower case 45 is formed with a concave portion 53 which is long in the width direction of the photographic film 32, and the lid member 47 is rotatably fitted in the concave portion 53. The lid member 47 has column portions 47a at both ends thereof that serve as guides during rotation, and a lid portion 47b that closes the film passage is provided between the column portions 47a.
Keys 47c exposed to the outside of the cartridge 33 are formed on both end surfaces of the lid member 47. By using this key 47c to rotate the lid member 47 from the outside,
The lid member 47 rotates between a closed position (see FIG. 6) that closes the film passage 51 and an open position (see FIG. 7) that opens the film passage 51.

A pair of projections 5 are formed on the inner wall of the port portion 44a of the upper case 44 so as to project into the film passage 51.
4 are formed. These protrusions 54 have a shape in which the height gradually increases from the back side toward the delivery port 50,
Abuts when the lid member 47 is rotated toward the closed position,
The lid member 47 is held in the closed position. When the lid member 47 rotates toward the open position, the tip of the lid portion 47b contacts the edge of the lower case 45 forming the delivery port 50, and holds the lid member 47 in the open position. The protrusion 54 is
The distance is such that it is in sliding contact outside the frame range in the width direction of the photographic film 32.

The photographic film 32 has a film width of 26 m.
As shown in FIG. 8, two perforations 57 are discontinuously formed on the expected exposure screen 56. These perforations 57 are provided on one side in the film feeding direction and at both ends of the exposure screen, and the length from the tip of the photographic film 32 to the first perforation 57a is the length of one frame of the film. .

The film unit 11 has a main body base 26, a rear cover 27, an exposure unit 28, and a strobe unit 3.
0 and the front cover 29 are assembled in this order, and finally the photographic film cartridge 31 is loaded. Patrone storage room 3
4 and the bottom of the film storage chamber 36 are openings, and the photographic film cartridge 31 is loaded from the opening of the cartridge storage chamber 34. These openings are closed by pull-top type bottom covers 60 and 61 provided on the rear cover 27 after the photo film cartridge 31 is loaded.

After the photographic film cartridge 31 is loaded, the lid member 47 of the photographic film cartridge 31 is rotated to the open position, and then the spool 46 is rotated to pull out the photographic film 32 from the cartridge 33 and pull out the photographic film 32. It is sent to the storage room 36. In order to perform such work in a bright room, the cartridge storage room 34
On the bottom lid 60 which shields the light tightly, an opening / closing rotary shaft 62 for opening / closing the lid member 47 from the outside and a spool rotary shaft 63 for rotating the spool 46 from the outside are respectively rotatable. It is installed. This bottom lid 60
Is closed after loading the photographic film cartridge 31.

As shown in FIG. 9, at one end side of the opening / closing rotary shaft 62 and the spool rotary shaft 63, the key 46b of the spool 46 and the key 4 of the lid member 47 after the bottom cover 60 is closed.
7c and 7c respectively. The other end surfaces of the spool rotating shaft 62 and the opening / closing rotating shaft 63 are exposed to the outside, and keys 62a and 63a are formed therein, respectively. Further, when the cartridge 33 is loaded, the winding knob 1
8 fork 18b engages the key 46b of the spool 46.

The film unit 11 is submitted to the photo lab after the completion of shooting all frames. At the photo lab, the bottom cover 60
Open and take out the cartridge 33 in which the photographed film 32 having been photographed is stored. When taking out the cartridge 33, it is necessary to surely keep the lid member 60 in the closed position. Therefore, in order to easily perform the closing operation of the lid member 47 from the outside, an indication of "closed" (see FIG. 13) is provided around the key 62a of the opening / closing rotary shaft 62 on the outer surface of the bottom lid 60. It is written.

As shown in FIG. 10, the winding shaft 35 has
Keys 35a are provided on both end faces, and a photo film 32 is provided at the center.
Slit openings 35b into which the tip ends of are inserted. The winding shaft 35 has a pair of fork portions 65 and 66 provided at both ends of the winding shaft 35 so as to project from the rear cover 27.
And a pair of V-grooves 6 provided on the inner wall of the film storage chamber 36.
It is rotatably supported between 7, 68.

In order to wind the fed photo film 32 around the winding shaft 35 in a bright room to make the photo film 32 into a roll form, the bottom lid 61 for light-tightly shielding the film storage chamber 34 includes: A winding rotation shaft 69 for rotating the winding shaft 35 from the outside is rotatably attached. The bottom lid 61 is closed after loading the photographic film cartridge 31. At this time, one end of the winding shaft 69 is engaged with the key 35a of the winding shaft 35. A key 69a is formed on the other end surface of the winding rotary shaft 69,
The key 69a is exposed to the outside with the bottom lid 61 interposed therebetween.

A part of the key 69a of the winding rotary shaft 69 is marked, and if the winding rotary shaft 69 is rotated from the outside so as to align the marking with a predetermined position, the winding The slit opening 35b of the shaft 35 is
The receiving position (see FIG. 4) for surely receiving the leading edge of the photographic film 32 to be sent out is determined. Since the bottom lids 60, 61 are hidden by the outer case 13, the rotating operation of the rotary shafts 62, 63, 69 is not performed by the user.

FIG. 11 schematically shows a shutter mechanism, a film winding stopping mechanism, a film counter mechanism and the like. The shutter mechanism is composed of a rod 16a formed on the lower surface of the shutter button 16, a locking lever 70, a shutter drive lever 71, shutter blades 72, and the like, and a film winding stop mechanism is attached to two belt wheels 73 and 74. The belt 75, the driven shaft 76, the coil spring 77, the cam member 78, the cam 79, the locking lever 70, and the shutter drive lever 71. Further, the film counter mechanism is composed of a one-tooth gear 82 and a number display plate 83. The film winding mechanism is the above-described winding knob 18, and the photographic film 32 is stored inside the cartridge 33 by rotating the winding knob 18 in the film winding direction (the direction of arrow A shown in the figure).

The belt 75 has a length corresponding to 3 frames of film, and the belt 75 has a length of 6 frames in accordance with the arrangement of the perforations 57 provided within the range of 3 frames of film.
Two claws 84 are integrally provided. These claws 84 are engaged with the perforations 57 of the photographic film 32, but the distance between the shafts of the belt wheels 73 and 74 is longer than the length of one frame of the film, for example, about 1.5 times. At least two or more of the claws 57 of the claws 57 project from the long hole openings (see FIG. 3) 85 formed above the dark box 38 and the perforations 57 of the photographic film 32.
Engage with. As a result, the photographic film 32 transferred by the winding operation of the winding knob 18 is driven.

The claws 84 are received in the horizontally elongated recess 87 formed in a part of the film regulating surface 86 of the rear cover 27. Further, in order to reduce the influence of distortion and improve the focus in the peripheral portion of the screen, when the photographic film 32 at the exposure position is curved so as to be convex toward the back side, it is curved in the same manner. The guide is placed inside the belt 75, and the belt 7 on the photographic film side is
Slide 5 along the guide.

A driven shaft 76 is formed integrally with the rotating shaft of the belt wheel 73. The coil spring 7 is attached to the driven shaft 76.
7 and the gear 90 are inserted. The coil spring 77 is
Only the rotation (the counterclockwise rotation of the belt wheel 73) driven by the winding direction of the photo film 32 of the belt 75 (the direction of arrow B shown in FIG. 11) using the tightening force is applied to the gear 9
It acts as a one-way clutch that is transmitted to zero. That is, the belt 75 rotates (belt wheel 73) following the winding direction of the photographic film 32 (the direction of arrow B shown in FIG. 11).
Rotation in the counterclockwise direction), the coil spring 77 is wound tightly, and the rotation of the belt 75 is transmitted to the gear 90. On the contrary, when the belt 75 rotates (follows the rotation of the belt wheel 73 in the clockwise direction) following the feeding direction of the photographic film 32 (the direction opposite to the arrow B shown in FIG. 11), the coil spring 77.
Does not transmit the rotation of the belt 75 to the gear 90,
The belt wheel 73 is free.

The drive of the gear 90 is transmitted to the gear 93 provided on the rotating shaft 92 of the cam member 79 via the intermediate gear 91. At this time, since the gear trains 90, 91, 93 are reduction gear trains, when the belt 75 is moved by the length of one frame of the film, the rotating shaft 92 makes one rotation.

A cam member 78 which rotates integrally with the rotating shaft 92.
The claw 70a of the locking lever 70 abuts on the outer periphery of the. A one-tooth gear 82 is integrally provided on the upper end of the cam member 79, and a tooth row 83 a formed on the outer periphery of the number display plate 83 is provided.
Mesh with. A shutter charging cam 78 is integrally provided below the cam member 79, and the claw 71a of the shutter drive lever 71 abuts on the shutter charging cam 78. Torsion spring 94
Is the spring receiver 7 of the shutter drive lever 71 at one end 94a.
1b and the other end 94b engages with the falling piece 70b of the locking lever 70, the shutter drive lever 71 is rotated counterclockwise about the shaft 95, and the locking lever 70 is rotated clockwise about the shaft 96. Energize each.

A shaft 97 formed in parallel with the optical axis 14a of the taking lens 14 has a crank-shaped shutter blade 7 on a shaft 97.
2 is rotatably attached. Shutter blade 72
Is normally in a position where it abuts against the stopper 101 by the bias of the spring 100 and blocks the shutter opening 102 provided on the optical axis 14a. Between this position and the position where the shutter opening 102 is opened. To rotate about the shaft 97.

The cam member 79 rotates counterclockwise as the photographic film 32 is wound up and transferred. When the cam member 79 makes one rotation, the photographic film 32 is transferred by exactly one frame, and the pawl 70a of the locking lever 70 enters into the notch portion 79a provided on the outer periphery of the cam member 79 to move the cam member 79.
Prohibit the rotation of. As a result, the rotation of the belt 75 that follows the photographic film winding direction is prohibited, and the film winding is stopped. At the same time, the locking lever 70 slightly rotates clockwise around the shaft 96, and the winding stop claw 70c of the locking lever 70 engages with the tooth row 18a provided on the outer circumference of the winding knob 18, The rotation operation of the winding knob 18 in the winding direction is prohibited.

Further, the number display plate 8 is provided by transferring the film.
3 rotates one scale. On the upper surface of the number display plate 83,
A scale for displaying the number of images that can be taken, that is, the remaining number is provided. Since this scale is the number of frames that can be photographed at this point, the number of frames of the film that can be photographed can be confirmed by observing the scale through the number display window 17 of the front cover 29.

On the shutter drive lever 71, an L-shaped bent piece 71d is formed below the falling piece 71c, and the tip of the bent piece 71d faces the shutter blade 72. As described above, the rotation of the cam member 79 causes the cam 78 to rotate.
Also rotates integrally, and the shutter drive lever 71 is rotated clockwise about the shaft 95 against the bias of the spring 94. When the shutter drive lever 71 is rotated clockwise, the rising piece 71e engages with the protrusion 70d of the locking lever 70, and resists the urging of the spring 94, and the claw 72 of the shutter blade 72 is resisted.
It is held at the charge position away from a.

When the shutter button 16 is pressed, the rod 1
6a pushes the falling piece 71b of the locking lever 71, and the locking lever 70 rotates counterclockwise around the shaft 96.
By this rotation, the projection 70d of the locking lever 70 is disengaged from the rising piece 71e of the shutter drive lever 71, and the shutter drive lever 71 is instantly rotated counterclockwise by a predetermined angle by the bias of the spring 94. Bending piece 7 during this rotation
1d kicks off the claw 72a of the shutter blade 72. By kicking the shutter blades 72, the shutter blades 72 rotate about the shaft 97 to open the shutter opening 102. Then, when the bent piece 71d goes over the claw 72a, the shutter blade 72 moves the spring 10
The shutter opening 102 is blocked again by being pulled back by 0.

At the same time, the pawl 70a is released from the cutout portion 79a of the cam member 79 by the counterclockwise rotation of the locking lever 70 to release the rotation prohibition of the cam member 79, and the winding stop pawl 70c is released. The winding knob 18 is disengaged from the tooth row 18a, and the rotation operation of the winding knob 18 in the film winding direction is allowed.

When the finger is released from the shutter button 16, the pressing of the rod 16a is released and the shutter button 16 returns to its original position by its elasticity. As a result, the locking lever 70 is slightly rotated clockwise by the bias of the spring 94 and returns, and the shutter drive lever 71 is held at the charge position by the next film winding operation.

A cam 83b is integrally provided on the lower surface of the number display plate 83. This cam 83b is used for the winding knob 18 after the last frame of the photo film 32 has been photographed.
Abutting against the rising piece 70e of the locking lever 70 in the process of rotating the film in the film winding direction,
Is rotated counterclockwise about the shaft 96. When the locking lever 70 rotates in this manner, the pawl 70a is disengaged from the cutout portion 79a of the cam member 79, the belt 75 becomes free, and even if the winding knob 18 is rotated in this state, the film is not wound. Instead, all of the photographic film 32 can be wound inside the cartridge 33. In this way, if all of the photographic film 32 is wound inside the cartridge 33, it becomes easy to take out the cartridge 33 at the developing station.

Next, the operation of the above embodiment will be described. The film unit 11 is manufactured in the order shown in FIG. That is, the bottom lids 60, 61 of the rear cover 27 are attached to the body base 26.
The rear cover 27 is attached in the opened state. Next, an exposure unit 28, a strobe unit 30,
And the front cover 29 is attached in order. Then, the unit main body 12 assembled in this way is conveyed to the loading step of loading the final photographic film cartridge 31.

The loading step is in a bright room state, and the photographic film cartridge 31 assembled in another step is conveyed to this step. Photo Film Patrone 3
In No. 1, the photographic film 32 is wholly housed inside the cartridge 33, and the lid member 47 is in the closed position.

As shown in FIG. 1, before the loading operation, the bottom cover 61 of the film storage chamber 36 is first closed, and then the photographic film cartridge 31 is opened in the cartridge storage chamber 34.
4a is loaded. This loading is performed along the axial direction of the spool 46 of the photographic film cartridge 31. By this loading, the fork 18b of the winding knob 18 engages with the key 46b of the spool 46. Then, the bottom lid 60 of the cartridge storage chamber 34 is closed. By this closing work, the rotary shaft 62 for opening and closing the bottom lid 60 and the rotary shaft 63 for the spool
And one end sides 62b and 63b are the keys 46 of the spool 46.
b and the key 47c of the lid member 47 are engaged with each other. As a result, the cartridge storage chamber 34 and the film storage chamber 3
6 and 6 are light tightly shielded.

After the bottom cover 60 is closed, the photographic film 32 is
Is taken out from the cartridge 33, and the taken-out photographic film 32 is fed into the film storage chamber 36 in a roll form. This work is carried out movably by an automatic film feeding device.

As shown in FIG. 13, the film feeding automatic device has keys 62a, 63a, 69a of the opening / closing rotary shaft 62, the spool rotary shaft 63, and the winding rotary shaft 69, which are exposed to the outside. Drive shafts 110, 111, and 112 that engage with and rotate the drive shafts are provided, and the film is sent out by rotating these drive shafts 0, 111, and 112.

In the feeding operation, first, the drive shaft 111 is rotated counterclockwise by a predetermined amount and the opening / closing rotary shaft 63 is rotated.
The lid member 47 of the photo film cartridge 31 is rotated to the open position. As a result, the photo film cartridge 31
Is in the state shown in FIG. Then, the drive shaft 110 is rotated counterclockwise to rotate the spool rotation shaft 62,
The spool 46 of the photo film cartridge 31 is rotated in the film feeding direction. At this time, the jig rod 113 is inserted into the opening 25, and the check claw 24 is separated from the tooth row 18 a of the winding knob 18.
It is possible to rotate the spool 46 engaged with 8 in the direction opposite to the film winding direction.

As the spool 46 rotates, the photographic film 32 is scooped by the separating claw 52 and guided to the outside through the film passage 51 and the delivery port 50. The photographic film 32 guided to the outside is sent to the film storage chamber through the exposure opening of the film unit 11. During this transfer, the belt 75 is attached to the perforation 57 of the photographic film 32.
The claws 84 are engaged.

In FIG. 14, the perforation 57 and the claw 8 are shown.
4 shows the process of engagement with 4. The belt 75 is shown in FIG.
The state shown in (A) is the initial state. That is,
Only two claws are located on the side of the film passage. Of these nails, the tip of the photographic film 32 contacts the nail 84a on the side where the photographic film 32 is fed. Since the belt 75 is free to rotate in the direction opposite to the film winding direction of the photographic film 32, the belt 75 follows the feeding of the photographic film 32 without operating the film winding mechanism such as the cam member 79.

Since the distance from the leading edge of the photographic film 32 to the first perforation 57a is the length of one frame of the photographic film 32, when the nail 84a is pushed by the leading edge of the photographic film 32, the belt 75 rotates and the same figure is shown. As shown in (B), the next perforation 57 is the first perforation 57 on the downstream side in the feeding direction of the photographic film 32.
Enter a. As a result, the belt 75 rotates in the clockwise direction following the feeding of the photographic film 32, and the claws 84 are arranged in the same manner as the perforations 57, so that the claws 84 are sequentially engaged with the perforations 57. Go on.

Before the leading edge of the photographic film 32 reaches the film storage chamber 36, the drive shaft 112 rotates the winding rotary shaft 69 to a position where the marking of the rotary shaft 69 is aligned with a predetermined position. As a result, the slit opening 35b of the winding shaft 35 of the film storage chamber 36 stands by in the receiving position (see FIG. 4). Therefore, the leading end of the photographic film 32 to be sent out can be easily opened by the slit opening 35a.
You can get in.

After that, the drive shaft 112 rotates again. This rotation is performed after considering the estimated time, because the time it takes for the leading edge of the photographic film 32 to reach the slit opening 35b after the photographic film 32 is fed out can be predicted in advance. The rotation direction of the drive shaft 112 is such that the winding shaft 35 rotates clockwise as shown in FIG. As a result, the remaining portion of the photographic film 32 of the photographic film 32 is wound around the outer periphery of the winding shaft 35 in a roll form while the leading end of the photographic film 32 is engaged with the slit opening 35b of the winding shaft 35. At this time, the drive shaft 110 is also the spool 4
6 is rotated toward the film feeding direction,
By rotating the drive shaft 112 slower than the drive shaft 112, the photographic film 32 can be wound around the winding shaft 35 while being fastened.

When all the photo films 32 are wound on the winding shaft 35, the drive shaft 112 is loaded because the rear end of the photo film 32 is locked by the spool 46. The rotation of the drive shaft 112 is stopped by detecting this load. Then, the drive shafts 110, 11, 112 are connected to the open / close rotary shaft 62, the spool rotary shaft 63, and the winding rotary shaft 6.
The keys 9 are retracted from the respective keys 62a, 63a, 69a. At this time, the roll of the photographic film 32 wound around the winding shaft 35 is loosened and settles when it comes into contact with the inner wall of the film storage chamber 36, and the perforation 57 of the photographic film 32 engages with the claw 84 of the belt 75. It is in the state of doing. Further, the jig rod 113 is pulled out from the opening 25. As a result, the check claw 24 is engaged with the tooth row 18a of the winding knob 18, and the rotation of the winding knob 18 in the direction opposite to the film winding direction is prevented. The outer case 1 is attached to the unit body 12 assembled in this way.
3 is put on and the film unit 11 is completed. In this way, the drive shafts 110, 111, 112 can all be inserted from the same direction, which facilitates automation.

In the above-mentioned embodiment, the bottom cover 61 for closing the opening of the film storage chamber 36 is provided with the winding rotary shaft 69 for rotating the winding shaft 35 from the outside. Not limited to this, a part of the winding shaft 35 is exposed to the outside from the bottom cover 61, and the exposed winding shaft 35 is exposed.
May be directly rotated from the outside. In this case, the bottom cover 61 does not need to have a pull-top type structure that can be opened and closed, and therefore the rear cover 27 can be attached to the main body base 2.
It is desirable to have a fixed bottom lid that naturally closes the opening of the film storage chamber 36 when it is attached to the film 6.

In the above embodiment, the spool rotary shaft 63 is rotated from the outside when the photographic film is fed out. However, the present invention is not limited to this.
The photographic film 32 may be sent out from the cartridge 33 by rotating the winding knob 18 in the direction opposite to the film winding direction.

FIG. 16 shows an outline of an apparatus for feeding the photographic film by rotating the winding knob 18 in the direction opposite to the film winding direction. The motor 120 is a driver 1
The control unit 122 controls the drive start and stop via 21. The drive of the motor 120 is transmitted to the coupling gear 126 via the motor gear 123, the gear 124, and the gear 125. The coupling gear 126 is a tooth row 18a of the winding knob 18.
, And the winding knob 18 is rotated clockwise.

Before performing the work, the jig rod 11 is inserted into the opening 25.
3 is inserted, and the teeth 1 of the check claw 24 and the winding knob 18 are inserted.
Since the engagement with 8a is released, the winding knob 18
Can be rotated in the direction opposite to the film winding direction. The gear trains 124, 125 and the like are for making the rotation speed of the spool 46 slower than the speed at which the winding rotary shaft 112 rotates the winding shaft 35, and
This is to obtain the required torque when rotating the winding knob 18. After the photographic film is completely pulled out, a load is applied to the winding rotary shaft 112. This load is sent to the control unit 122 as a winding completion signal. Upon receiving the winding completion signal, the control unit 122 stops driving the motor 120. According to this, the bottom lid 6
Since the spool drive shaft 62 provided at 0 can be omitted, the cost can be reduced.

In the above embodiment, the photographic film 32 is used.
The leading end of the photographic film 32 is engaged with the winding shaft 35 by inserting the leading end of the photographic film 32 into the slit opening 35b formed in the winding shaft 35. However, the present invention is not limited to this.
As shown in FIG. 17, three perforations 131 for engaging the photo film 130 with the take-up shaft 132 are formed at the tip of the photo film 130 at a predetermined pitch, and the photo film 130 is formed by using these perforations 131.
May be wound around the winding shaft 132. In this case, as shown in FIG. 18, a leaf spring 133 for guiding the tip of the photographic film 130 to the take-up shaft 131 is provided in the film storage chamber 36, and the perforation 131 is provided on the outer circumference of the take-up shaft 132. A mating claw 134 is formed.

The photographic film 130 sent out is guided to the winding shaft 132 while the leading end thereof is guided by the leaf spring 133, and thereafter, the winding shaft 1 is rotated by an external operation.
By engaging the perforations 131 with the claws 134 of 32, the photographic film 13 is attached to the outer periphery of the winding shaft 132.
0 is wound up. The height of the nails 134 is the photo film 13
If the thickness is substantially equal to or slightly lower than the thickness of 0, the tip of the nail 134 will not come into contact with the photographic film 130 to cause scratches or the like. Further, since the leaf spring 133 is elastic, even if it is wound around the outer circumference of the winding shaft 132 and the photographic film roll has a large diameter, it is elastically deformed in response to this, so there is no problem. Since the leaf spring 133 is guided on the surface opposite to the emulsion surface of the photographic film 130, there is no problem even if it comes into sliding contact with the front surface along the width direction of the photographic film 130, but it comes into sliding contact. Most preferably, the position is outside the range of the exposure screen.

[0065]

As described above in detail, by using the manufacturing method of the present invention, the most troublesome film loading operation in the manufacturing process of the lens-fitted film unit can be easily performed in a bright room condition. Also, automation can be facilitated, the manufacturing cost of the lens-fitted film unit can be suppressed, and an inexpensive and highly reliable product can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a photographic film cartridge is loaded in a cartridge storage chamber.

FIG. 2 is a perspective view showing the outer appearance of a lens-fitted film unit.

FIG. 3 is an exploded perspective view showing a unit main body.

FIG. 4 is a sectional view of a unit main body.

FIG. 5 is an exploded perspective view of a photographic film cartridge.

FIG. 6 is a cross-sectional view of the photographic film cartridge in which the lid member is in the closed position.

FIG. 7 is a cross-sectional view of the photographic film cartridge showing the state in which the lid member is in the open position.

FIG. 8 is a plan view showing a photographic film.

FIG. 9 is a sectional view of a cartridge storage chamber.

FIG. 10 is a sectional view of a film storage chamber.

FIG. 11 is an explanatory diagram showing the outline of a shutter mechanism, a film winding stop mechanism, and the like.

FIG. 12 is a flow chart of a process of drawing out a photo film from a patrone loaded in a patrone storage chamber in a bright room and storing the drawn photo film in the film storage chamber in a roll form.

FIG. 13 is an explanatory view showing an outline of an apparatus for drawing out a photographic film from the cartridge loaded in the cartridge storage room in a bright room and storing the drawn photographic film in the film storage chamber in a roll form.

FIG. 14 is an explanatory view showing a process in which the teeth of the belt are engaged with the perforations of the photographic film during the feeding of the photographic film.

FIG. 15 is an explanatory view showing a process of winding the sent out photographic film on a winding shaft of a film storage chamber.

FIG. 16 is an explanatory view showing an embodiment in which a photographic film is sent out by rotating a winding knob.

FIG. 17 is a plan view showing a photographic film provided with a winding perforation provided at the tip.

FIG. 18 is a cross-sectional view showing an embodiment in which a photographic film is wound around a winding shaft by using a winding perforation provided at the tip of the photographic film.

[Explanation of symbols]

 11 film unit with lens 12 unit body 18 winding knob 31 photo film cartridge 46 spool 47 lid member 57 perforation 62 rotating shaft for opening / closing 63 rotating shaft for spool 69 rotating shaft for winding 110, 111, 112 drive shaft 113 jig bar

Claims (5)

[Claims] 1. When not in use, the photographic film is wound up to the tip inside the cartridge, and the light-blocking lid member provided in the film passage is opened to rotate the spool provided inside the cartridge. It has a built-in photo film patrone that is designed to send the photo film to the outside of the patrone, and has a patrone storage room for loading the patrone and a film storage room for storing the photo film drawn from the patrone in a roll form. In the film unit with a lens, which sequentially stores the exposed photo film inside the film cartridge by rotating the film winding knob in the film film winding direction for each shooting, load the photo film cartridge in the film cassette storage chamber. Of the first step and the cartridge storage room A second step of closing the openable and closable lid for closing an opening formed in the light-tight,
A lid member of the photo film cartridge is opened by externally rotating an opening / closing rotary shaft rotatably provided on the lid.
Steps and rotating the spool from the outside to send the photographic film out of the cartridge, and the tip of the photographic film sent out is engaged with the winding shaft provided in the film storage chamber, and then the winding shaft is moved to the outside. Manufacturing a lens-fitted film unit characterized in that all the steps including the fourth step of winding the photo film around the outer circumference of the winding shaft inside the film storage chamber by rotating Method. 2. In the fourth step, a spool is rotatably provided on the lid, one end of which is engaged with the spool, and the other end of which is exposed to the outside to rotate the spool rotating shaft from the outside so that the photographic film is rotated. The method for manufacturing a lens-fitted film unit according to claim 1, wherein the film unit is sent to the outside. 3. The lens with a lens according to claim 1, wherein in the fourth step, a winding knob is rotated from the outside in a direction opposite to a winding direction of the film to send the photographic film out of the cartridge. A method for manufacturing a film unit. 4. The fourth step is to insert the tip of the photographic film into a slit opening formed in the winding shaft, and thereafter,
2. The method for producing a lens-fitted film unit according to claim 1, wherein the winding shaft is rotated from the outside so that the photographic film is wound around the outer circumference of the winding shaft inside the film storage chamber. 5. A photographic film having a perforation for winding at the leading end is wound up to the leading end inside a patrone when not in use, and a light-blocking cover member provided in the film passage is opened. The photo film patrone, which is designed to send the photo film to the outside of the patrone by rotating the spool installed inside the patrone, has a built-in photo film patrone. In a film unit with a lens, which has a film storage chamber for storing in a roll form, and which sequentially stores the exposed photo films inside the cartridge by rotating the winding knob in the film winding direction for each shooting. The photo film patrone is stored in the patrone. A first step and, the cartridge second step of closing the openable and closable lid for closing the opening formed in the bottom of the housing chamber light-tight loading, the
A lid member of the photo film cartridge is opened by externally rotating an opening / closing rotary shaft rotatably provided on the lid.
The process and the spool is rotated from the outside to send the photographic film out of the cartridge, and the winding shaft is rotated from the outside until the tip of the photographic film reaches the winding shaft provided in the film storage chamber. The tip of the film is guided toward the winding shaft by a leaf spring provided in the film storage chamber, and the perforations for winding are engaged with the pawls provided on the outer periphery of the winding shaft to form the outer periphery of the winding shaft. A method for manufacturing a lens-fitted film unit, wherein all steps including the fourth step of winding the photographic film on the sheet are performed in a bright room.