JP2888682B2 - Method of manufacturing film unit with lens - Google Patents

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 film unit with a lens using a patrone in which even the leading end of the film is stored.

[0002]

2. Description of the Related Art In order to easily take a photograph at any time, a film unit with a lens, which can be said to be a kind of camera with a built-in film in the unit body incorporating a simple photographing mechanism, is called "Sharan Run Hi" (product name). Are manufactured and sold by the present applicant and widely used. This film unit with a lens (hereinafter referred to as "film unit") has a very simple structure as disclosed in, for example, Japanese Patent Publication No. 2-3615, and after photographing, each film unit is similar to a conventional photographic film. DPE can be requested.

A film which has been used for a film unit is composed of a 110 cartridge and a cartridge with a cartridge.
Although it was 35 films, 110 cartridges were already stretched between two axes, and only the entire cartridge was loaded into the film unit. 13
When using 5 films, the film unit does not have a film rewind mechanism to reduce costs.
An unexposed film is drawn out of the photographic film cartridge in advance, and the exposed film is wound into the cartridge. For this reason, it was necessary to draw out the film from the patrone in a dark room or the like, make a film roll, and then load the film unit.
The 35 film was easy to wind up because the leading end of the film protruded outside the cartridge.

In these film units, the main body for storing the film and the back cover are of an adhesive or fitted type, and the unexposed film drawn out of the patrone is used between the roll film storage room and the patrone storage room. Between the exposure positions. When the unexposed film, which has been drawn out in advance in the film unit and stored in a roll shape, is exposed, the film is taken up in the patrone every time a picture is taken, and when all the frames have been taken, the film is put in the patrone. Can be completely stored.
At the photo lab, the patrone containing the film that has been photographed in the light room is taken out of the collected film unit and development is performed.

On the other hand, as shown in US Pat. No. 4,834,306 and US Pat. No. 4,846,418, when the film is not used, the leading end of the photographic film is wound into the cartridge body, and when used, the spool is rotated. Has been proposed in which a photographic film is sent out. In the patrone body of such a photographic film patrone, a spool shaft around which the photographic film is wound in a roll shape is rotatably housed, and a rib for regulating the loosening of the photographic film roll is provided on the inner wall of the patrone body. Are located. Further, a tip separation claw is formed integrally with the inner wall of the patrone main body so as to be in contact with the outermost peripheral surface of the photographic film roll at the back of the photographic film feed port. When the spool shaft is rotated in the direction in which the photo film is fed out by the mechanism on the camera side, the photo film roll also rotates together with the spool shaft. When the leading edge of the photographic film reaches the position facing the photographic film outlet, the leading edge of the photographic film is separated from the photographic film roll by the separating claw, and the photographic film passes between the light shielding members attached to the inner side of the outlet and is sent out. It is.

[0006]

From such a background, it is conceivable to manufacture a film unit using the photographic film cartridge described in the above publication. However,
The photo film patrone described in the above-mentioned publication has the tip of the photographic film rolled into the patrone main body when not in use, and when producing a film roll, the film tip protruding from the patrone like a 135 film is wound up. I can't go. It is also necessary to take care not to damage the end of the film when producing the film roll. The present invention has been made in consideration of the above problems, and provides a method of manufacturing a film unit with a lens using a photographic film cartridge that is wound into the patrone main body even in the unused state even in the unused state. It is another object of the present invention to provide a method for producing a film roll from a photographic film cartridge without damaging the front end of the film.

[0007]

According to the present invention, in order to achieve the above object, in a first step, a photographic film cartridge having a structure in which a spool is rotated in a delivery direction to feed out the leading end of the film from the inside of the cartridge body. The film is loaded into a patrone chamber provided in the main body, and a reel having a means for catching the leading end of the film is inserted into the film roll chamber. In the second step, a rear cover is attached to the back of the unit main body to cover the patrone chamber and the film roll chamber, and in the third step, the reverse of the film winding knob for film winding is prevented. Release the pawls and the file after shooting
The shutter is rotated by one of
The sprocket for charging is rotatable on the other side . In the fourth step, the spool is rotated in the sending direction, the leading end of the film is sent out from the cartridge body and sent to the film roll chamber, and the winding shaft is rotated at a speed higher than the film sending speed, so that the film is wound on the winding shaft. Is wound in a roll. After the film roll is formed in the film roll chamber in this manner, the winding shaft may be extracted from the film roll, or the winding shaft may be separated from its drive mechanism and left in the film roll chamber.

[0008] In yet another aspect of the invention, in its first step, holding the photographic film cassette of the structure for feeding the leading end of the film from the patrone body by rotating in the feed direction of the spool in the unit body outside, and the cartridge present
Set the reel at a position away from the film outlet formed on the body.
While facing each other, between the film discharge port and the reel
A guide member for forming a film passage is set on the film .
In the following second step, the spool is driven in the film sending direction to move the leading end of the film from the cartridge body to the guide.
Then, the film is sent out toward the winding shaft via a loading member , and in a third step, the leading end of the film is captured by the winding shaft and the winding shaft is driven to wind the film into a roll. And the fourth
In the process, the winding shaft around which the film is wound in a roll shape and the cartridge body are set in the film roll chamber and the cartridge chamber of the unit body, respectively, and then a rear cover is attached to the back of the unit body to cover both chambers. I did it. Before the fourth step, a step of adjusting the distance between the patrone main body and the winding shaft to match the distance between the patrone chamber and the film roll chamber may be inserted.

[0009]

EXAMPLE A photographic film cartridge shown in FIG. 12, for example, is used for a film unit produced by the manufacturing method of the present invention. The photographic film patrone 2 is composed of resin case members 3a and 3b constituting the patrone body 3.
And a spool 4 rotatably housed therein, and a film 5 wound around the spool 4. The film 5 is tightly wound between the flanges 4a and 4b of the spool 4, and the outermost periphery of the film 5 is incorporated into the cartridge body 3 so that the outermost regulating ribs 6 provided integrally on the inner walls of the case bodies 3a and 3b. 7, the film 5 is not loosened from the spool 4. When the photo film cartridge 2 is assembled, the end 4c of the spool 4 coincides with the outer surfaces of the case bodies 3a and 3b and does not at least protrude. Ports 8 and 9 serving as discharge passages for the film 5 are formed in the case bodies 3a and 3b so as to protrude, and light-shielding telemps 10 are attached to the respective inner walls so as to face each other. The ends of the ports 8 and 9 serve as the film discharge ports 11. Further, a distal end separation claw 12 is provided at the back of the port portion 9 of the case body 3b.

When the spool 4 is driven clockwise using a key provided at the end 4c of the spool 4, the film 5 is tightly wound on the spool 4 and the film 5 rotates together with the spool 4. I do. When the film leading end 5a moves to a position facing the discharge port 11, the film leading end 5a is scooped up by the leading end separating claw 12, and the spool 4 is continuously driven, whereby the film leading end 5a is moved.
Is discharged from the outlet 11 through the space between the telemps 10.

In FIG. 2 showing the appearance of a film unit produced by the manufacturing method of the present invention, a unit main body 13 is mainly formed of plastic and is entirely covered by a paper box 14. The paper box 14 has a taking lens 15, a shutter button 16, a winding knob 17, a finder window 18,
Holes are provided for exposing a display window 19 through which the number of remaining films can be checked.
It can be observed. In FIG. 1 showing the unit main body 13 disassembled into a main body 20 (the front cover 21 is fixed) and a rear cover 22, an opening 20a is formed in the main body 20 from the back surface to the bottom surface.
The shape of the rear cover 22 is determined so as to shield light from light.

In the main body 20, a film roll chamber 24 and a cartridge chamber 25 are provided so as to sandwich the exposure frame 23 therebetween. A film winding fork 26 integrally formed below the winding knob 17 protrudes from the upper wall of the patrone chamber 25. Film rails 27 and 28 are provided above and below the exposure frame 23, and support the upper and lower portions of the film 5 so that the exposure range of the film 5 is not damaged. As shown, the film rails 27 and 28 have a middle portion protruding toward the rear cover 22, and a sprocket 29 projects upward.

In the unit body 13 composed of the main body portion 20 and the front cover 21 and the rear cover 22, the above-mentioned photographic film cartridge 2 for storing the film 5 in a light-shielded state at the time of assembling thereof, and this photographic film cartridge 2 2
And the film 5 pulled out of the patrone chamber 2
5. The film is loaded into the film roll chamber 24, respectively. The rear end of the film 5 is fixed to a spool 4 provided in the photo film cartridge 2. Although the loading operation will be described in detail later, at least after the photographic film cartridge 2 is loaded, the rear cover 22 is covered so as to shield the opening 20a from light, and the locking projections 30 and 31 provided on the bottom surface of the main body 20 are provided. Are engaged with locking holes 32 and 33 provided in the rear cover 22 and are fixed.

On the inner surface of the rear cover 22, there is formed a film regulating surface 34 having the same curvature as that of the film rails 27 and 28 on the main body 20 side. Position. A concave portion for receiving the projecting portion of the sprocket 29 is provided in a part of the film regulating surface 34. Rear cover 22
Are provided with a film roll chamber lid 50 and a patrone chamber lid 51, respectively. Even after the body cover 20 is covered with the rear cover 22, by opening the film roll chamber lid 50 and the patrone chamber lid 51, the film roll chamber 24,
The bottom opening of the patrone chamber 25 can be exposed.
Therefore, if the patrone chamber lid 51 is opened after the photographing is completed, the photographic film patrone 2 containing the exposed film can be easily taken out. Of course, when the film roll chamber lid 50 and the patrone chamber lid 51 are closed, the light shielding of the unit body 13 is completely maintained.

In FIG. 6 showing the main body 20 and the front cover 21 disassembled, an exposure mechanism for exposing the film 5 to light is provided between the film roll chamber 24 and the cartridge chamber 25 of the main body 20. I have. The film 5 is provided with a well-known perforation 5b. The sprocket 29 is engaged with the perforation 5b, and the film 5 is fed by exactly one frame in one rotation. A cam 35 having a notch 35a formed on the outer periphery is provided coaxially with the sprocket 29, and a claw of a locking lever 36 abuts the outer periphery. The locking lever 36 is rotatable about a shaft 37, and is urged clockwise by a spring 38 whose one end is locked to a bent piece 36a. Further, the locking lever 36 is provided with a locking claw 36b which engages with a tooth row portion 17a formed on the outer periphery of the winding knob 17 and prevents the rotation of the winding knob 17. A check pawl 17b made of a leaf spring is engaged with the tooth row 17a of the winding knob 17, and prevents rotation in the film feeding direction.

When the film 5 is wound into the photographic film cartridge 2, the cam 3 is moved together with the sprocket 29.
5 also rotates counterclockwise in the figure. The sprocket 29 is further provided with a one-tooth gear 39 coaxially, and meshes with a row of teeth formed on the outer periphery of the number display plate 40. Therefore, when the sprocket 29 makes one rotation, the one-tooth gear 39 also makes one rotation, and rotates the number indicating plate 40 by one division. A shutter drive lever 42 is provided below the number display plate 40 so as to be rotatable about a shaft 41. The shutter drive lever 42 is urged in the counterclockwise direction by the spring 38, and when the locking lever 36 is unlocked, the shutter cover 4
The claw 44 provided at the end of the shutter blade projecting from 3 is kicked open and closed. The pawl 42 a of the shutter drive lever is in contact with a shutter charging cam formed integrally with the cam 35, and the shutter is charged by one rotation of the sprocket 29.

Below the shutter button 16 provided on the upper surface of the front cover 21, a bent piece 36a of the locking lever 36 is provided.
A rod 16a extending rearward so as to abut against is integrally formed. Therefore, when the shutter button 16 is pressed down, the locking lever 36 is rotated counterclockwise through the rod 16a against the bias of the spring 38, and the locking of the shutter driving lever 42 is released. Also, on the front of the front cover 21,
In addition to the finder window 18, an opening 4 is provided at a position located in front of the winding knob 17 and the rod 16 a.
6, 47 are provided.

3 to 5, which show a film loading production line, FIG. 4 shows an overall arrangement of the production line, and FIG. The positional relationship with the station 49 is shown. As shown in FIG. 3 and FIG.
Frames 48a and 48b are provided on 8, and an automatic loading device 53 is provided at a position facing the frame 48a. The base plate 48 is used by attaching a plurality of units to the transport belt 54. Conveyor belt 54
Is stepped rightward in FIG. 4 by a well-known drive mechanism, and passes through the dark room 55 on the way. The film unit supply step 56, the cartridge / winding shaft supply step 57, the rear cover fixing step 58, and the dark room operation step 6 correspond to the feed position of the conveyor belt 54, respectively.
3. The product take-out step 62 is determined. The dark room operation step 63 is further separated from a check pawl release step 59, a film feeding / rewinding step 60, and a reel removing step 61.

In FIG. 7 conceptually illustrating the structure of the automatic loading device 53, a holding claw 64 is engaged with the end of the spool 4 housed in the photo film cartridge 2 to transmit the rotation of the motor and to hold the motor. And the photographic film cartridge 2 can be held. The holding claws 64 are provided on the arms 6 projecting from the front surface of the main body 65 of the automatic loading device 53.
6 and is synchronized with the rotation of a gear 67 provided at the rear. A connecting arm 6 is provided on the left side surface of the main body 65 in the figure.
8 is mounted so that it can move up and down.
At the other end of the connecting arm 68, a film take-up shaft drive section 69 is provided, and a rotating shaft 71 having a film take-up shaft 70 at the tip is driven in synchronization with the rotation of the rear gear 72.

The driving gear 73 on the loading station 49 side
Are engaged with the gears 67 and 72 and
The rotation of the motor provided on the 9 side is transmitted. Also,
The release of the holding of the photo film cartridge 2 and the restriction and release of the reverse rotation of the film take-up shaft 70 are performed by using predetermined switches provided in the automatic loading device 53 when the core rods 74 and 75 protrude from the loading station 49 side. Manipulate. The winding shaft 70 has a plurality of projection claws 70a around the shaft, the pitch of which is the same as the pitch of the take-up perforation of the film tip 5a, and captures the film tip 5a without bending or damaging it. be able to.

A method of loading the photographic film cartridge 2 into the film unit by the film loading manufacturing line configured as described above will be described. First, in the unit supply step 56 shown in FIG. 4, the main body 20 (the front cover 21 is fixed) and the rear part are positioned at predetermined positions of the frames 48a and 48b on the empty base plate 48 as shown in FIG. The cover 22 is supplied manually. In the patrone / winding shaft supply step 57, the loading station 4
The photographic film cartridge 2 in a state where the photographic film cartridge 2 is wound and stored in the patrone main body 3 up to the film tip 5a of the unexposed film 5 in the patrone chamber 25 of the main body 20 supplied in the unit supplying step 56 by using the unit 9. I do. Also,
The film take-up shaft 70 is inserted into the film roll chamber 24 of the main body 20.

For this reason, a loading station 49 is provided during the patrone / winding shaft supply step 57,
The main body 65 of the automatic loading device 53 is pushed out by a constant stroke. A holding claw 64 at the tip of an arm 66 provided on the front surface of the main body 65 is engaged with and held in advance with the end of the spool 4 in the photo film cartridge 2, and the photo film cartridge 2 is in contact with the holding claw 64. It is housed in the patrone chamber 25 while maintaining the engagement. At the same time, the film take-up shaft 70 held by the rotating shaft 71 on the front surface of the film take-up shaft driving section 69 also moves the film roll chamber 24.
Get inside. At this time, the position of the winding shaft 70 is previously set to an appropriate position by the connecting arm 68.

Subsequently, when the base plate 48 moves to the rear cover fixing step 58, the rear cover 22, which is supplied at a fixed position on the base plate 48 by, for example, a robot hand, opens the film roll chamber lid 50 and the patrone chamber lid 51. Then, it is moved and placed so as to cover the back surface of the main body 20. Further, a fixed pressure is applied and fixed so that the locking projections 30 and 31 provided on the bottom surface of the main body 20 and the locking holes 33 and 32 provided on the bottom surface of the rear cover 22 are locked. The rear cover 22 is fixed with the arm 66 from the patrone chamber 25 and the rotating shaft 71 from the film roll chamber 24 projecting by opening the film roll chamber lid 50 and the patrone chamber lid 51, respectively.

When the conveyor belt 54 is stepped and the automatic loading device 53 is moved together with the base plate 48 to the dark room operation step 63, first, a check pawl releasing step 59 is performed by a mechanism provided in the base plate 48. First, when the main body 20 is previously loaded on the base plate 48, a projection provided on the frame 48a pushes the shutter button 16 to the shutter release position, and a rod integrally formed below the shutter button 16 is formed. 16a presses the bent piece 36a of the locking lever 36,
The locking lever 36 is rotated counterclockwise in FIG. By this rotation, a locking claw 36b for preventing rotation of the winding knob 17 provided on the locking lever 36 is moved to the tooth row portion 17a.
Then, the locking of the hoisting knob 17 is released. At the same time, the pawl in contact with the cam 35 is also retracted, so that the locking of the cam 35 by the locking lever 36 is released.

In the check pawl releasing step 59, a mechanism provided in the base plate 48 causes the check pawl 17b, which is a leaf spring engaged with the toothed portion 17a of the hoisting knob 17, to engage with the check pawl 17b.
The engagement with the pulling teeth portion 17a is released toward the base plate 48 through the opening 46 provided in the front cover 21. Further, the claw 42 a of the shutter drive lever 42 is in contact with a shutter charging cam formed integrally with the cam 35, thereby restricting the rotation of the sprocket 29. Then, the shutter driving lever 42 is rotated clockwise in FIG. 6 through an opening 47 provided in the front cover 21 by a mechanism provided in the base plate
The claw 42a is retracted from Step 5. As described above, the shutter button 16 is pushed in by the projection provided on the frame 48a, and the mechanism provided in the base plate 48 is provided with the check pawl 17b.
And the shutter drive lever 42 is rotated to allow the hoisting knob 17 and the sprocket 29 to freely rotate.

When the check pawl is released, the base plate 4
8 is again step-fed by the conveyor belt 54 and moves to a film feeding / winding step 60. When the base plate 48 comes to a predetermined position and stops, the driving gear 73 protrudes from the loading station 49 and meshes with the gear 67 and the gear 72 of the automatic loading device 53. As shown in FIG. 7, when the drive gear 73 rotates in the X direction, the gear 67 meshing with the drive gear 73 rotates in the Y direction, and rotates the spool 4 via the holding claws 64 in the film feeding direction.
At this time, a film winding fork 26 formed integrally with the end 4c of the spool 4 and the lower portion of the winding knob 17 is provided.
Is engaged, and the film is rotated in the film feeding direction with the winding knob 17. However, since the rotation restriction is released in the check pawl releasing step 59, there is no problem. Since the photo film cartridge 2 winds the film 5 around the spool 4 without loosening, the film 5 also rotates as the spool 4 rotates. When the film tip 5a moves to a position facing the discharge port 11, it is scooped up by the tip separation claw 12, and the spool 4 is driven continuously.
The film tip 5a is fed out of the outlet 11 through the space between the telemps 10.

The front end portion 5a of the film sent out of the cartridge body 3 has a film between the film rails 27 and 28 provided on the body portion 20 of the film unit and the film regulating surface 34 provided on the rear cover 22. The paper is sent to the film roll chamber 24 through the passage. A sprocket 29 protruding above the film rail 27 is provided with a perforation 5b of the film 5 moving in the film path.
And the film 5 is rotated with the movement of the film 5. However, since the restriction of the rotation is released in the check pawl releasing step 59, there is no problem. Due to the rotation of the driving gear 73 in the X direction in the loading station 49, the gear 72 also rotates in the Z direction at the same time as the gear 67, and the film take-up shaft 70 rotates in the film take-up direction in the film roll chamber 24. . Film tip 5 that has moved to film roll chamber 24
a, the perforations 5b are captured by a plurality of projection claws 70a provided around the axis of the winding shaft 70,
The film 5 is wound around a film winding shaft 70.

In order to ensure that the film leading end 5a of the film winding shaft 70 is captured, the film winding shaft 7
It is desirable that the rotation speed of 0 is at least twice the running speed of the film 5. Therefore, the gear 67 and the gear 7 of the automatic loading device 53 rotated simultaneously by one drive gear 73
By setting the ratio of the number of teeth of 2 to 2: 1, the rotational linear velocity of the film take-up shaft 70 was doubled the traveling speed of the film 5. The drive gear 73 is driven by a motor provided in the loading station 49. A slip mechanism is also provided in the drive system, and the drive gear 73 is rotated with a predetermined torque. When the film take-up shaft 70 catches the film tip 5a,
The holding claws 64 rotate at the same rotation speed as the film winding shaft 70. For this reason, a difference occurs in the rotation speed between the gear 67 and the holding claws 64, but the difference is absorbed by the clutch mechanism provided in the arm 66.

The rotation of the film take-up shaft 70 causes the film 5 to be wound into the film roll chamber 24, and when the film 5 is completely wound, the loading station 49.
Detects the torque of the drive gear 73 and stops the motor.
Even during film winding, slight back tension is applied to the film 5 to rotate the spool 4 and the like, so that the film 5 is wound around the film winding shaft 70 without loosening. The motor stops and the driving gear 73
When the rotation stops, the film 5 in the photo film cartridge 2 is all pulled out to the film take-up shaft 70, and a film roll is formed in the film roll chamber 24.

When the driving gear 73 stops, it retreats from between the gears 67 and 72, and the base plate 48 is again step-fed by the conveyor belt 54, and moves to the reel removing step 61. Since the film take-up shaft 70 is provided with a reverse rotation regulating mechanism, the film roll does not become loose due to the elasticity of the film 5 during the transfer by the transport belt 54. The core rod 7 from the loading station 49 side
4 and 75 are projected, and the photo film cartridge 2 of the holding claw 64 provided at a predetermined position of the automatic loading device 53 is provided.
Is released by operating the switch for releasing the holding of the film and the restriction of the reverse rotation of the film take-up shaft 70. After that, the drive gear 73 protrudes from the loading station 49 side,
It meshes with the gear 67 and the gear 72 of the automatic loading device 53, and slightly rotates in the direction opposite to the above-mentioned film feeding and winding step 60 to retreat. At this time, the film winding shaft 70
Only the arm 66 rotates, and the arm 66 does not rotate by the clutch mechanism.

By this reverse rotation, the film winding shaft 70
The engagement between the projection claw 70a and the perforation 5b is released to loosen the film roll, and a gap is formed between the film take-up shaft 70 and the innermost circumference of the film roll. Automatic loading device 53 by loading station 49
When the main body 65 is retracted by a predetermined stroke, the holding claws 64 retreat from the spool end 4c, and at the same time, a gap is formed between the film winding shaft 70 and the innermost periphery of the film roll. Leave 24.
The film roll chamber lid 50 and the patrone chamber lid 51 that have been released are moved to a closed position by a robot hand or the like, pressed, and fixed in a fitting manner. The photo film cartridge 2 and the film roll are light-tightly sealed in the unit body 13.

At this point, the film unit with lens is completed as a product. The completed film unit is sent from the dark room 55 to the bright room by the next step feed of the conveyor belt 54. Then, the product is taken out of the base plate 48 in the product take-out step 62 and subjected to an inspection or the like, and then packed in the paper box 14. On the empty base plate 48, a new main body 20 and a rear cover 22 are manually supplied and assembled in the next unit supply step 56. In the product take-out step 62, products are successively fed every step feed. Will be sent out.

Further, a film unit can be assembled by a film loading production line as shown in FIG. As in the previous embodiment, the unit supply step 76
5, the main body 20 (the front cover 21 is fixed) and the rear cover 22 are manually supplied to predetermined positions of the empty frames 48a and 48b on the base plate 48. The base plate 48 supplied with the unit is sent to the dark room 55 by the next step feed of the conveyor belt 54. Film feeding and winding process 7
In 7, the patrone holding arm (not shown) of the automatic loading device 53 previously shown in FIG. 9 holds the photographic film patrone 2 wound up and stored in the patrone main body 3 even to the film tip 5a, and holds the holding claw. 64 is engaged with the end of the spool 4.

A connecting arm 68 connecting the main body 65 of the automatic loading device 53 and the film winding shaft driving section 69 has a film winding shaft driving mechanism so that the distance between the two can be freely changed within a predetermined range. The part 69 is supported. In the film feeding / winding step 77, first, the length of the connecting arm 68 is set so that the film winding shaft 70 is located immediately before the film discharge port 11 of the photo film cartridge 2. Drive gears 90 and 91 provided in the loading station 49 are sent out and mesh with gears 67 and 72 provided in the automatic loading device, respectively.
When the gear 67 is rotated by the drive gear 90, the photographic film cartridge 2 held by the cartridge holding arm is rotated.
Is rotated in the film 5 feeding direction via the holding claws 64. By the rotation of the spool 4, the film 5 is scooped up by the tip separation claw 12 provided on the cartridge body 3 as described above, and is sent out from the film discharge port 11.

At the front of the film discharge port 11, the film take-up shaft 70 rotates the drive gear 91 via the gear 72 and the rotary shaft 71 at a rotational linear speed twice as high as the film traveling speed. The film tip 5a sent out from the film discharge port 11 is guided by a guide member 83 protruding from the loading station 49 and moves so as to abut the film winding shaft 70, and moves around the film winding shaft 70. The perforations 5b are captured by the plurality of projection claws 70a provided. When the film take-up shaft 70 catches the film tip 5a,
4 rotates at the same rotation speed as the film winding shaft 70, but the rotation speed with the gear 67 is absorbed by the clutch mechanism provided in the arm 66 described above. When the loading station 49 detects a change in the torque of the drive gear 91, the core rod 92 protrudes, and the holding claws 64 release the holding of the spool 4. Continue film winding shaft 7
As 0 rolls up the film 5, the connecting arm 68 extends, and the distance between the main body 65 and the film take-up shaft driving section 69 gradually increases.

When all of the unexposed film 5 stored in the photographic film cartridge 2 is pulled out and the film roll is formed around the film take-up shaft 70, the drive gear 93 stops rotating. The distance between the main body 65 and the film take-up shaft drive unit 69 is determined by the photographic film cartridge 2 and the film roll formed around the film take-up shaft 70.
5 and the film roll chamber 24 is expanded to a position facing the opening provided on the bottom surface of the film roll chamber 24, and the extension of the connecting arm 68 stops. When the film winding is completed, the core rod 93 provided on the loading station 49 side protrudes, and operates the switch for restricting the reverse rotation of the rotating shaft 71 and retreats. Thereafter, the driving gears 90 and 91 are connected to the gear 6 of the automatic loading device 53.
It retreats from the meshing position with 7,72. The finished film roll 5c does not loosen because the reverse rotation of the rotating shaft 71 is restricted.

The base plate 48 is transported again to the transport belt 54.
And the process moves to the cartridge / winding shaft supply step 78. The film 5 stretched between the photo film cartridge 2 and the film take-up shaft 70 as shown in FIG.
Are loaded into the patrone chamber 25 and the film roll chamber 24 from the opening at the bottom. However, since the film rails 27 and 28 provided above and below the exposure frame 23 are curved in the rear cover direction, the vicinity of the center of the film 5 where the film support member 94 protrudes from the loading station 49 and extends. Lift to the top. Patrone holding arm,
The photographic film cartridge 2 and the film roll 5c held by the rotating shaft 71 and the film support member 94 are loaded at predetermined positions of the main body 20 by moving the automatic loading device 53 in the axial direction of the photographic film cartridge 2. You. After loading, the patrone holding arm and the film support member 94 are retracted from their respective positions.

When the base plate 48 is moved to the rear cover fixing step 79 by the step feed of the conveyor belt 54, the base plate 4 is moved by, for example, a robot hand.
The rear cover 22, which is supplied at a fixed position on the top 8, is moved and placed so as to cover the rear surface of the main body 20 while opening the film roll chamber cover 50. Further, fixed pressure is applied and fixed so that the locking projections 30 and 31 provided on the bottom surface of the main body 20 and the locking holes 33 and 32 provided on the bottom surface of the rear cover 22 are locked. The rear cover 22 is fixed with the rotating shaft 71 protruding from the film roll chamber 24 with the film roll chamber lid 50 opened. In the subsequent steps, as in the first embodiment, the film loading to the film unit is completed through the winding shaft removing step 80 and the product removing step 81. In the manufacturing line shown in FIG. 8, the steps from the film feeding / rewinding step 77 to the reel removing step 80 are performed in a dark room operation step 82.
Thus, the operation is performed in the dark room 55.

Further, a film unit can be assembled by a film loading production line as shown in FIG. To briefly explain this flow. As in the case of the two types of production lines described above, the unit supply step 95
, The main body 20 and the rear cover 22 are manually supplied to the base plate 48. In the film sending / capturing step 96, the unexposed film 5 is transferred from the photographic film cartridge 2 by the automatic loading device 53 shown in FIG.
The spool 4 is rotated and sent out, and the film discharge port 11 is
The film take-up shaft 70 rotating on the front side of the camera catches.
When the film take-up shaft 70 catches the film leading end 5a, the drive gears 90 and 91 are stopped once, and the rotating shaft 7 is stopped.
After the reverse rotation of 1 is restricted, it retracts from the meshing position with gears 67 and 72.

When the step is fed to the cartridge / winding shaft supply step 97, the connecting arm 68 moves to a position where the film winding shaft 70 is loaded into the film roll chamber 24. While the film 5 extended between the photo film cartridge 2 and the take-up shaft 70 is slightly lifted up by a film support member 94 provided in the loading station 49, the automatic loading device 53 is operated by the automatic loading device 53. Film take-up shaft 7 which moves in the direction of FIG.
0 is loaded into a predetermined position of the film unit. In the rear cover fixing step 98, the robot 66 and the like move the arm 66 from the patrone chamber 25, the rotating shaft 71 from the film roll chamber 24, and open and project the film roll chamber lid 50 and the patrone chamber lid 51, respectively. Cover 2
2 is fixed.

In the check nail releasing step 98, the hoisting knob 17 and the sprocket 29 can be freely rotated by the mechanism described in the description of the production line in FIG. In the next film winding step 100, the film winding shaft 70 completely winds the film 5 in the photographic film cartridge 2 to form a film roll 5c in the film roll chamber 24. After that, the film loading into the film unit is completed through the winding shaft removing step 101 and the product removing step 102 in the same manner as in the above two types of production lines. In the production line shown in FIG. 11, the process from the film feeding / capturing process 96 to the reel removal process 101 is a darkroom operation process 103, which is an operation in the darkroom 55.

In the three types of production lines where the method for producing a film unit with a lens according to the present invention was carried out,
After forming the film roll, the reel removal process 6
Although the film take-up shaft 70 has been pulled out at 1, 80, and 101, the film take-up shaft 70 can be left inside the unit body 13 while the film roll is wound, and only the rotating shaft 71 can be retracted.

[0043]

As described above, according to the method of manufacturing a film unit with a lens of the present invention, the structure of a conventional film unit is changed from a photographic film cartridge in which a spool is rotated in a film feeding direction and a film is fed. The film roll can be easily produced without any damage to the leading end of the film from the photographic film patrone in which the leading end of the film is wound into the patrone body.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a film unit according to the present invention.

FIG. 2 is an external perspective view of a film unit according to the present invention.

FIG. 3 is a plan view illustrating a part of a production line according to the present invention.

FIG. 4 is a side view illustrating an overall arrangement of a production line according to the present invention.

FIG. 5 is a perspective view of a main part of a base plate on a production line according to the present invention.

6 is an exploded perspective view of another portion of the film unit shown in FIG.

FIG. 7 is an explanatory diagram of an automatic loading device provided in the production line shown in FIG.

8 is a side view illustrating the overall arrangement of a production line different from the production line shown in FIG.

9 is an explanatory diagram of an automatic loading device provided in the production line shown in FIG.

FIG. 10 is an explanatory diagram illustrating a part of an operation in the manufacturing line illustrated in FIG. 8;

11 is a side view illustrating an overall arrangement of a production line different from the production line shown in FIGS. 4 and 8.

FIG. 12 is an exploded perspective view of the photographic film cartridge according to the present invention.

[Explanation of symbols]

 2 Photo Film Patrone 4 Spool 5 Film 5c Film Roll 13 Unit Body 16 Shutter Button 16a Rod 17 Winding Knob 17b Non-return Claw 20 Main Body 22 Rear Cover 24 Film Roll Room 25 Patrone Room 29 Sprocket 35 Cam 36 Locking Lever 48 Base Plate 49 Loading station 50 Film roll chamber lid 51 Patrone chamber lid 53 Automatic loading device 54 Conveyor belt 55 Dark chamber 64 Clamping claw 70 Film winding shaft 73 Drive gear

Continuation of the front page (56) References JP-A-64-544 (JP, A) JP-A-3-237454 (JP, A) JP-A-2-301735 (JP, A) JP-A-3-6634 (JP) , U) Japanese Utility Model 148137 (JP, U) Japanese Utility Model 3-54924 (JP, U) Japanese Utility Model 63-113148 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB Name) G03C 3/00

Claims (6)

(57) [Claims] 1. A roll-shaped film and a patrone main body are stored in advance in a film roll chamber and a patrone chamber provided in a unit main body, and after taking a photograph, the winding knob is turned to one side to thereby rotate the patrone. In a method of manufacturing a film unit with a lens in which a spool provided in a main body is rotated in a winding direction so as to wind a film into a patrone main body, the tip of the film is moved from the inside of the patrone main body by rotating the spool in a feeding direction. A first step of loading a photographic film cartridge having a structure to be fed into the patrone chamber, inserting a reel having a means for catching the leading end of the film into the film roll chamber, and attaching a rear cover to the back surface of the unit body; Second covering the room and the film roll room
Step and release the check pawl that is preventing the winding knob from turning to the other side, and make the winding knob turn freely to the other side.
Both rotate to one side following the film feed after shooting.
The sprocket that charges the shutter
A third step of allowing the other side to freely rotate, and rotating the spool in the delivery direction, sending out the leading end of the film from the cartridge body and sending it to the film roll chamber, and rotating the winding shaft faster than the film sending speed. And a fourth step of catching the leading end of the film by the catching means and winding the film around a winding shaft in a roll shape. 2. The method according to claim 1, further comprising a fifth step of extracting the winding shaft after winding the film into a roll. 3. The lens-equipped lens according to claim 1, wherein after winding the film into a roll, the winding shaft is separated from an external drive mechanism and is left in the film roll chamber together with the roll-shaped film. A method for manufacturing a film unit. 4. A film roll and a patrone main body provided in the unit main body are respectively preliminarily stored with a rolled film and a patrone main body, and after taking an image, a winding knob is turned to one side to thereby rotate the patrone. In a method of manufacturing a film unit with a lens in which a spool provided in a main body is rotated in a winding direction so as to wind a film into a patrone main body, the tip of the film is moved from the inside of the patrone main body by rotating the spool in a feeding direction. the structure of photographic film cassette for feeding held by the unit body outside, and the cartridge present
Set the reel at a position away from the film outlet formed on the body.
While facing each other, between the film discharge port and the reel
A first step of setting a guide member that forms a film passage in the film, and a second step of driving the spool in the film sending direction to feed the leading end of the film from the cartridge body toward the winding shaft via the guide member. A third step of capturing the leading end of the film with the winding shaft, driving the winding shaft and winding the film in a roll shape, and a film roll of the unit main body including the winding shaft in which the film is wound in a roll shape and the cartridge body. A fourth step of setting each of the chamber and the patrone chamber and then attaching a rear cover to the back of the unit body to cover both chambers. 5. The method according to claim 4, further comprising, before the fourth step, adjusting a distance between the cartridge body and the winding shaft so as to match a distance between the cartridge chamber and the film roll chamber. Of manufacturing a film unit with a lens. 6. The method for manufacturing a film unit with a lens according to claim 4, wherein the winding shaft is separated from an external driving mechanism and is left in a film roll chamber together with a rolled film.