JPH06130568A - Production of film unit with lens - Google Patents

Abstract

PURPOSE:To produce a film unit provided with a lens using a photographic film cartridge even with an unused film rolled into the cartridge main body up to its tip. CONSTITUTION:The unit is provided with a unit main body station 41, a cartridge supply station 42, a film head drawing-out station 43, a winding station 45, a film loading station 46, an after cover fixing station 47 and a product discharge station 48 on a conveyor belt 40 at the respective feed positions. The main body, an after cover and the photographic film cartridge are supplied on a base plate on the belt 40 respectively from the stations 41 and 42. The film tip is rolled into the main body of the photographic film cartridge, however the film tip is sent out of the main body by the station 43.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a lens-fitted film unit using a cartridge in which even the leading end of the film is stored.

[0002]

2. Description of the Related Art A film unit with a lens (hereinafter referred to as a film unit), as known from Japanese Examined Patent Publication No. 2-332615, has a unit main body equipped with a simple photographing mechanism and is an international standard ISO 1007-1979. It has a built-in 135 film with a patrone specified in 1. In this film unit, the film rewinding mechanism is omitted in order to reduce the cost, and the unexposed film is drawn out from the main body of the cartridge in advance, and the exposed film is wound into the cartridge for each photographing. Therefore, at the time of manufacturing the film unit, it is necessary to load the roll-shaped unexposed film and the cartridge body into each of the film roll chamber and the cartridge chamber provided in the unit body. This film loading operation is performed in a dark room using a film loading jig 90 as shown in FIG.

On the other hand, as seen in US Pat. No. 4,834,306, US Pat. No. 4,846,418, etc., even when the film is unused, the tip of the film is wound into the cartridge body, and the spool is rotated during use. A photo film patrone is proposed, which is designed to send out a film. Such photo film patrone (hereinafter referred to as resin patrone)
Then, a rib is formed on the inner wall of the cartridge body and a tip separating claw is formed at one end of the rib, respectively. The rib controls the looseness of the film roll wound on the spool, and the film roll can be rotated together with the spool. , The tip of the film is picked up from the film roll with the tip separation claw, and the separated film tip is sent out of the cartridge body.

[0004]

When manufacturing a film unit using this resin film cartridge, the resin film cartridge is wound in the main body of the film cartridge even in the unused state of the resin film cartridge. As described above, the leading end of the film cannot be locked to the winding shaft 91 of the film loading jig 90 shown in FIG. Therefore, even if the resin cartridge is supplied to the conventional film unit manufacturing process, there is a problem that the film cannot be loaded.

The present invention has been made in consideration of the above problems, and does not significantly change the manufacturing process of a conventional film unit, and a photographic film cartridge in which the leading end of the film is wound in the cartridge main body even in an unused state. It is an object of the present invention to provide a method for manufacturing a film unit in which the film can be loaded into the film unit.

[0006]

In order to achieve the above object, in the invention described in claim 1, in the first step, the resin cartridge is held outside the unit main body, and the spool is rotated in the delivery direction, The tip of the film is sent out from the inside of the cartridge body, the rotation of the spool is stopped by detecting the tip of the film in the second step, and the tip of the film is attached to the winding shaft formed with the film holding portion at the third step. Then, the winding shaft is rotated to wind the film from the cartridge body, and in the fourth step, the roll-shaped film and the cartridge body are set in the film roll chamber and the cartridge chamber, respectively, and the winding film is wound from the roll film. After removing, the rear cover is attached to the rear surface of the unit body to cover both the chambers. Further, in the invention described in claim 2, in the first step, the resin cartridge is held outside the unit main body, and the spool is rotated in the feeding direction to feed the leading end of the film from the inside of the cartridge main body. To stop the rotation of the spool,
After attaching the leading end of the film to the core in the third step, the core is rotated to wind up the film from the cartridge body, and the film wound around the core in the fourth step and the cartridge body are rolled into the film roll. After they are set in the chamber and the cartridge chamber, respectively, a rear cover is attached to the back surface of the unit main body to cover the both chambers.

[0007]

EXAMPLE FIG. 7 shows a photographic film cartridge loaded in a film unit manufactured by the manufacturing method of the present invention. This photographic film cartridge 2 includes resin case bodies 3a and 3b forming the cartridge body 3,
The spool 4 is rotatably accommodated therein, and the film 5 is wound around the spool 4. The film 5 is tightly wound between the flanges 4a and 4b of the spool 4, and by incorporating the film 5 into the cartridge body 3, the outermost circumference of the film 5 has outer peripheral regulating ribs 6, which are integrally provided on the inner walls of the case bodies 3a and 3b. Suppressed by 7,
The film 5 will not be loosened from the spool 4.

Further, the film 5 is provided on the case bodies 3a and 3b.
Port portions 8 and 9 serving as the discharge passages are formed in a protruding manner, and a pair of light-shielding telemps 10 are attached to the inner wall of the discharge passage so as to face each other. The tips of the port portions 8 and 9 serve as the film discharge port 11. Further, a separation claw 12 is provided at the back of the port portion 9 of the case body 3b.

In this photographic film cartridge 2, when the spool 4 is rotated clockwise in the drawing (hereinafter referred to as the feeding direction), the film 5 which is prevented from being loosened is wound on the spool 4.
Together with this, it is rotated in the delivery direction. As a result, when the film tip 5a moves to a position facing the film discharge port 11, the film tip 5a is scooped up by the separating claw 12. When the spool 4 is further rotated, the film tip 5a passes between the telemps 10 and the film discharge port 1
1 is sent out from the cartridge main body 3.

FIG. 6 shows a film unit manufactured by the manufacturing method of the present invention. Film unit 12
Is a unit body 13 made of resin and a paper box 1 for storing the same.
4 and. The unit body 13 has a taking lens 15, a shutter button 16, a winding knob 17, a viewfinder window 18, and a display window 19 for displaying the number of remaining films.
Is provided. Since the film unit 12 is used for photographing while the unit body 13 is housed in the paper box 14, the paper box 14 is provided with a hole for exposing the photographing lens 15 and the like.

FIG. 5 shows a state in which the rear cover is removed from the unit body. To avoid complicating the drawing, the photographic film cartridge 2 is omitted in this drawing. The unit main body 13 includes a main body 20 and a front cover 21 and a rear cover 22 that are attached to the front and rear of the main body 20. The main body 20 is provided with a film roll chamber 24 and a cartridge chamber 25 so as to sandwich the exposure frame 23. A fork 26 that fits into the spool 4 projects from the cartridge chamber 25, and the fork 26 is formed integrally with the winding knob 17.

A sprocket 29 that engages with the perforations and rotates when the film 5 is fed is provided above the exposure frame 23. A sprocket 29 that engages with perforations is provided on the upper side of the exposure frame 23.
9 is rotated when the film 5 is fed. In addition,
Locking projections 30 and 31 are provided on the bottom surface of the main body portion 20, and these locking projections 30 and 31 are used to lock the main body portion 20 and the rear cover 22 after the photographic film cartridge 2 is loaded.

An exposure frame 23 is formed on the inner surface of the rear cover 22.
A similarly curved film regulating surface 34 is formed so as to match the curved line of FIG. Further, on the bottom surface of the rear cover 22, locking openings 32 and 33 into which the locking projections 30 and 31 are fitted, a film roll chamber lid 35 and a cartridge chamber lid 36 which can be opened and closed are provided, respectively. . The film roll chamber lid 35 and the cartridge chamber lid 36 are locked to the main body 20 via locking claws (not shown) to shield the film roll chamber 24 and the cartridge chamber 25 from light. By opening the film roll chamber lid 35 and the cartridge chamber lid 36, the bottom openings of the film roll chamber 24 and the cartridge chamber 25 can be easily exposed even after the rear cover 22 is locked to the main body 20. .

FIG. 2 shows an essential part of the manufacturing process of the film unit of the present invention, that is, the film loading process. In this film loading process, the unit main body supply station 41,
A cartridge feeding station 42, a film cueing station 43, a winding station 45, a film loading station 46, a rear cover fixing station 47, and a product unloading station 48 are provided respectively.
The winding station 45, the film loading station 46, and the rear cover fixing station 47 are installed in a dark room.

In the unit main body supply station 41, the main body portion 20 to which the front cover 21 is fixed and the rear cover 22 after the photographing mechanism is assembled in another manufacturing line are shown in FIG.
The base plate 52 set as shown in FIG. The base plate 52 is provided with a film loading jig 53 and frames 54 and 55 for positioning and holding the main body portion 20 and the rear cover 22 thereon. The film loading jig 53 has a holding portion 56 for adsorbing and holding the cartridge body 3 while freely rotating the spool 4, and a leading end portion of the film pulled out from the cartridge body 3 for winding the film 5. A shaft 57 is provided. A frame 58 is formed on the conveyor belt 40 as shown in FIG. 4, and the frame 58 positions the base plate 52 with respect to the conveyor belt 40.

At the cartridge supply station 42, the photographic film cartridge 2 in which the film tip 5a is wound around the cartridge body 3 is picked up, and this is loaded into the film loading jig 5
3 to the holding unit 56. The holding portion 56 is attracted,
As shown by the one-dot chain line in FIG. 3, the cartridge main body 3 is held. After that, the conveyor belt 40 is driven and the base plate 52 is sent to the position of the film cueing station 43. Since the spool 4 does not project outside the contour of the cartridge body 3, its rotation is not blocked by holding.

The film cue station 43 is shown in FIG.
The film cueing jig 60 as shown in FIG. The film cueing jig 60 includes a main body base 63 slidably provided on a pair of rails 61 and 62, and a cylinder 64 that slides the main body base along the longitudinal direction of the cartridge main body 3. . The body base 6
3, a spool drive shaft 65 for rotating the spool 4,
A motor 67 for driving the spool drive shaft 65 via a belt 66, a micro switch 68 for detecting the film tip 5a fed from the cartridge body 3, and a film tip 5a fed to the outside of the cartridge body 3 for the micro switch. A pair of guide plates 69a and 69b for guiding up to 68 are provided.

In the film cue station 43, when the base plate 52 supplied with the photographic film cartridge is opposed to a predetermined position, the cylinder 64 is actuated and moved in the direction of the arrow in the figure. By this movement, the tip of the spool drive shaft 65 is inserted into the end of the spool 4, and the pair of guide plates 69a and 69b face the front of the film delivery port 11 together with the microswitch 68. After that, when the motor 67 rotates the spool drive shaft 65 via the belt 66, the film 5 causes the spool 4 to rotate.
It is rotated in the sending direction via.

By this rotation, the film front end 5 is sent out from the film delivery port 11 to the outside of the cartridge main body 3, and the groove 57 of the winding shaft 57 is set by the pair of guide plates 69a and 69b.
After being inserted into a, the microswitch 68 is pressed.
As a result, the rotation of the motor 67 is stopped and the feeding of the film 5 is stopped. After that, the cylinder 64 is driven, the main body base 63 is driven in the direction opposite to the arrow direction in the drawing, and the engagement between the spool drive shaft 65 and the spool 4 is released.

In the film cueing jig 60, in order to insert the film tip 5a into the groove 57a of the winding shaft 57,
Although a pair of guide plates 69a and 69b are provided, as shown in FIG. 8, a chucking device 70 for grasping the film tip 5a is provided, and after chucking the film tip 5a with this, the film is slid in the direction of the winding axis 57 to wind the winding axis. The film tip 5a may be inserted into the groove 57a of 57. In addition,
The film cueing jig shown in FIG. 8 uses a photo sensor 71 to detect the leading edge 5 of the film.

At the winding station 45, a drive shaft 57a shown by a two-dot chain line in the drawing is seen from the side of the conveyor belt 40.
Is engaged with the winding shaft 57. After engagement, drive shaft 57a
Is driven, the winding shaft 57 rotates to wind the film 5 from the cartridge main body 3. When the winding is completed and the drive shaft 57a is retracted, the winding shaft 57 moves to the drive shaft 57a.
Is disengaged. Thereafter, the transport belt 40 is driven and the base plate 52 is moved to the position of the next film loading station 46.

At the film loading station 46, FIG.
When the film loading jig 53 is pressed by the projecting rod 53a indicated by the two-dot chain line, the film loading jig 53 slides on the base plate 52 downward in the drawing. As a result, the cartridge body 3 is inserted into the cartridge chamber 25. Thereafter, when the film loading jig 53 is rotated around the axis of the protruding bar 53a and pushed down, the film 5 wound around the winding shaft 57 is set in the film roll chamber 24. By this rotation, the stopper of the winding shaft 57 is released and the spring moves to the inside of the film loading jig 53 by the spring. By this movement, the film 5 wound into a roll remains in the film roll chamber 24. In this state, after the suction of the holding portion 56 is released, when the pressing of the projecting rod 57a is released, the film loading jig 53 slides the base plate 52 upward by the spring, and the film cartridge main body is put in the cartridge chamber 25. 3 remains.

Thereafter, a rear cover mounting arm (not shown) is operated to hold the rear cover 22 positioned on the frame 55 and cover the cartridge main body 3 and the main body 20 containing the film roll. After this, the rear cover 22 is attached to the main body 2
When pressed to 0, the locking protrusions 30 and 31 open the openings 32 and 33.
And the rear cover 22 is locked to the main body portion 20.
At this point, the assembly of the unit main body is completed, and thereafter, the inside of the main body 20 is light-tightly shielded by the rear cover 22. In this state, the conveyor belt 40 is driven and the base plate 52 is moved from the dark room to the position of the product take-out station 48 in the bright room.

The product take-out station 48 takes out the unit main body 13 from the base plate 52 and the base plate 52 from the conveyor belt 40 by using a product take-out arm and a base plate take-out arm (not shown). First, the product take-out arm operates to take out the unit main body 13 from the base plate 52. After that, the base plate take-out arm operates to take out the base plate 52 from the conveyor belt 40. These unit bodies 13,
The base plates 52 are placed on the other conveyor belts and moved to predetermined positions.

9 and 10 show a unit main body and a film loading jig used in the manufacturing method of another invention, respectively. In the unit main body 80 shown in FIG. 9, the film 5 drawn from the photographic film cartridge 2 is wound around the winding core 81 and stored in the film roll chamber 82. For this reason,
A bearing portion 84 that rotatably supports the winding core 81 is integrally formed in the main body portion 83 below the film roll chamber 82. In the film loading jig 85 shown in FIG. 10, the shaft 86 that holds and rotates the winding core 81 has the winding shaft 57 described above.
It is provided instead of.

In the film loading process to the unit main body 80, most of the work is common to the above-mentioned embodiment, and therefore the different work performed by each station described above will be described. At the unit body supply station,
As shown in, the base plate 52 on which the main body portion 83 and the rear cover 22 are set is supplied to the conveyor belt 40. At the next cartridge supply station, the photographic film cartridge 2 and the core 81 are set on the holding portion 56 of the film loading jig 85 and the shaft 86, respectively.

At the film cue station, a spool drive shaft 65 is fitted on the spool 4 and is rotated to send the film tip 5a out of the cartridge body 3. When the leading edge 5a of the film is detected by the micro switch 68, the feeding is stopped. At this time, since the winding core 81 faces the micro switch 68 instead of the winding shaft 57, the film tip 5a is inserted into the notch of the winding core 81.

At the winding station, the conveyor belt 40
Of the drive shaft 57a protruding from the side of the
The winding core 81 is rotated via the shaft 86 to wind the film 5 from the cartridge main body 3. After the film is wound up, at the film loading station, the film loading jig 85 is projected and pressed by the rod 53a, and is slid downward on the base plate 52 in the drawing. As a result, the cartridge body 3 is inserted into the cartridge chamber 25.

After that, when the film loading jig 85 is rotated around the shaft center of the protruding bar 53a and pushed down,
The film 5 wound around the winding core 81 in the film roll chamber 24
Is set. After that, the shaft 86 is removed from the stopper and retracted into the film loading jig 85, and the core 81 around which the film 5 is wound remains in the film roll chamber 24. In this state, the holding portion 56 is attracted and the protruding bar 53a is attached.
When the pressing is sequentially released, the film loading jig 85 slides the base plate 52 upward by the spring.
As a result, the cartridge body 3 remains in the cartridge chamber 25. After that, the rear cover 22 is put on the main body 83, the assembly of the unit main body 80 is completed, and the rear cover 22 is moved to a predetermined position from the transport belt 40 at the next product take-out station.

[0030]

As described above in detail, according to the method of manufacturing the lens-fitted film unit of the present invention, the spool can be rotated in the feeding direction without significantly changing the conventional method of manufacturing the film unit. The photo film cartridge of the type that sends out the leading edge of the film can be loaded in the unit body.

[Brief description of drawings]

FIG. 1 is a view showing a film cueing jig used in a manufacturing method of the present invention.

FIG. 2 is an explanatory view showing a film loading step used in the manufacturing method of the present invention.

FIG. 3 is a view showing a film loading jig used in the manufacturing process of the present invention.

FIG. 4 is a diagram showing a positional relationship between a transport belt and a base plate held by the transport belt in a film loading process.

FIG. 5 is a perspective view showing a state in which a rear cover is removed from the unit main body manufactured by the manufacturing method of the present invention.

FIG. 6 is a perspective view showing an external appearance of a film unit manufactured by the manufacturing method of the present invention.

7 is an exploded perspective view of a photographic film cartridge used in the film unit shown in FIG.

FIG. 8 is a perspective view showing another film cueing jig.

FIG. 9 is a perspective view showing a unit main body used in another manufacturing method of the present invention.

10 is a view showing a film loading jig for loading a film into the unit main body shown in FIG.

FIG. 11 is a view showing a film loading jig used in a conventional manufacturing method.

[Explanation of symbols]

 2 Photo film Patrone 3 Patrone body 4 Spool 5 Film 5a Film tip 13 Unit body 17 Roll-up knob 20 Body 22 Rear cover 24 Film roll chamber 25 Patrone chamber 29 Sprocket 40 Conveyor belt 52 Base plate 53 Film loading jig 57 Roll 60 Extraction jig 64 Cylinder 65 Spool drive shaft 67 Motor 68 Micro switch

Claims (2)

[Claims] 1. A film roll chamber and a cartridge chamber provided in a unit main body, wherein a roll-shaped film and a cartridge cartridge are stored in advance, and the film cassette is rotated by rotating a winding knob to one side after photographing. In a method of manufacturing a lens-fitted film unit in which the spool provided in the spool is rotated in the winding direction to wind the film into the cartridge body, the tip of the film is fed from the cartridge body by rotating the spool in the feeding direction. Photo of the structure While holding the film cartridge outside the unit body, rotating the spool in the feeding direction to feed the leading end of the film from the inside of the cartridge body, and the spool by detecting the fed film tip. Second to stop the rotation of
A step, a third step of attaching the film front end to a winding shaft formed with a film holding portion at the front end, and then rotating the winding shaft to wind the film from the cartridge main body; and the winding shaft and the cartridge main body. It is set in a film roll chamber and a cartridge chamber, respectively, after removing the winding shaft from the roll-shaped film, a rear cover is attached to the rear surface of the unit main body to cover both chambers. A method of manufacturing a film unit with a lens. 2. A patrone chamber and a film roll chamber provided in the unit body are pre-stored in each of the patrone chamber and the film roll chamber, and a winding core around which the film drawn from the patrone body is wound, and the winding knob is turned to one side after photographing. In the method of manufacturing a lens-fitted film unit in which the spool provided in the cartridge body is rotated in the winding direction to wind the film into the cartridge body by moving the spool, the film is rotated by rotating the spool in the delivery direction. Photograph of the structure in which the tip is sent out from the inside of the cartridge body. The film patrone is held outside the unit body, and the spool is rotated in the feeding direction to feed the leading end of the film from inside the cartridge body, and the fed film. Second for detecting the tip and stopping the rotation of the spool
And a third step of winding the film from the cartridge main body by attaching the film tip to the core and then rotating the core, and the film wound around the core and the cartridge main body in the film roll chamber. And a cartridge chamber, and a fourth step of mounting a rear cover on the back surface of the unit main body to cover both chambers.