JP2001235841A - Method for manufacturing film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain the linked state of a winding knob with a light shielding cover closing mechanism by preventing the erroneous rotation of the winding knob in the midst of assembly. SOLUTION: In a 1st stage, a shutter mechanism, a film winding check mechanism and the light shielding cover closing mechanism are attached to a main body base part. The film winding check mechanism prevents the rotation of the winding knob when a shutter is charged in the shutter mechanism and allows the rotation thereof after completing the release. The light shielding cover closing mechanism closes the light shielding cover of a cartridge in response to the detection of the rotational amount of the winding knob obtained in the case of winding all the exposed photographic film. In a 2nd stage, the winding knob is attached to the main body base part and the rotating position of the winding knob is set to a position where the winding knob is engaged with a spool in a film loading stage and the initial position of the rotational amount detected in the light shielding cover closing mechanism. In a 3rd stage, the shutter is charged in the shutter mechanism so as to prevent the rotation of the winding knob. In a period from the 3rd stage to the film loading stage succeeding to the 3rd stage, the winding knob is smoothly engaged with the spool by carrying the film unit in a state where the rotation of the winding knob is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a film unit with a lens.

[0002]

2. Description of the Related Art A film unit with a lens having a built-in photographic film has been provided by the present applicant so that a photograph can be easily taken at any time. This film unit with a lens has a main body base in which a photographic film cartridge is loaded, a front cover attached to the front of the main body base, and a rear cover attached to the back of the main body base. An exposure applying mechanism such as a shutter mechanism, a film winding mechanism, a winding knob, a photographing lens, and a strobe unit is incorporated in the main body base. When the photographing of all the photo frames on the photo film is completed, the frames are submitted to a photo lab. At the developing station, the cartridge containing the exposed photographic film is taken out by opening the bottom cover of the rear cover, and processing such as development and printing is performed using the current developing processing system. The user is returned with the printed photo and the developed photo film. Used film units with lenses are returned to the factory, disassembled, separated into recycled parts and reused parts, and recycled.

[0003] Incidentally, there is a type of a film unit with a lens in which an IX240 film cartridge having a light-shielding lid provided at a film delivery port is incorporated. The film unit with the lens is in a state where an unexposed photographic film is pulled out of a cartridge at the time of purchase, and winds up a photographic film that has been photographed around the cartridge for each photographing. After the photographing of the last photographing frame is completed, the film winding stopping mechanism does not operate, and thus all the photo films are stored in the cartridge by the film winding operation. At this time, if the light-shielding lid of the cartridge is closed, the operation of taking out the cartridge at the developing station can be performed in a bright room, which is simplified.

Japanese Patent Application Laid-Open No. 11-202451 discloses a lens having a light-shielding cover shielding mechanism for closing a light-shielding cover of a cartridge when the entire photographic film up to the film tip is stored in the cartridge. Film units have been proposed. The light-shielding lid shielding mechanism is
It comprises a mechanism for detecting the amount of rotation of the winding knob until the entire photo film is stored in the cartridge, and a mechanism for closing the light-shielding lid of the cartridge when the amount is detected.

When the light-shielding cover shielding mechanism is employed, it is necessary to mount the winding knob at a predetermined rotation position during assembly. Also, when a photo film cartridge is loaded into the unit at a factory, the amount of rotation of the take-up knob and the amount of retraction of the photo film are one-to-one, so as proposed in Japanese Patent Application Laid-Open No. 7-219156. It is necessary to control the amount of unexposed photographic film drawn out to a constant amount.

[0006]

Incidentally, in assembling the film unit with the lens, the photographic film is loaded after the step of attaching the winding knob. If the rotation position of the take-up knob is deviated due to vibration or impact during transportation during this time, the spool and the fork of the take-up knob will not be engaged at the same rotational position in the loading process of the photographic film, and the light shielding cover shielding mechanism will occur. There is a drawback that the operation timing of is shifted.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and provides a method of manufacturing a film unit with a lens in which the rotation position of a winding knob is not shifted until a photographic film is loaded. The purpose is to provide.

[0008]

In order to achieve the above object, in a method of manufacturing a film unit with a lens according to the present invention, a first step of attaching a shutter mechanism and a film winding-stop mechanism to a main body base, and a first step. A second step of attaching the winding knob to the base of the main body and thereafter setting the rotation position of the winding knob to a position where the winding knob is engaged with the spool in the film loading step; and a second step of performing the second step;
A third step of moving the shutter drive lever to the charging position to charge the shutter mechanism with the shutter, and transporting the film in a state where the rotation of the winding knob is prevented from the third step to the film loading step after that step. It is something to do.

According to a second aspect of the present invention, in the method for manufacturing a film unit with a lens, the light shielding cover of the cartridge is opened in response to detecting the amount of rotation of a winding knob for winding all of the photographed film on the film unit with the lens. A closing light-shielding lid closing mechanism is provided. In the second step, the rotation position of the winding knob is set to a position where the winding knob is engaged with the spool in the film loading step and to an initial position of the rotation amount detected by the light-shielding lid closing mechanism. It is something to do.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a film unit with a lens according to this embodiment will be described. As shown in FIG. 1, the lens-fitted film unit 10 includes a unit body 11 and an exterior body 12 that covers the outer periphery of the unit body.

A photographing lens 13 and a light-collecting plate 1 which are arranged so as to be exposed outside the front of the unit body 11 from the exterior body 12 are provided.
4. Date imprint switch 15, objective lens 16, strobe light emitting unit 17, strobe charge switch 18, shutter button 19 exposed on top, remaining film number display window 20, charge completion display unit 21, and back Knob 22 and eyepiece 2 exposed to
3 are each exposed.

The unit body 11 is, as shown in FIG.
Main body base 25, photo film cartridge 26, rear cover 27, shutter mechanism 28, film unwinding mechanism 2
9, film counter mechanism 30, strobe unit 3
1, receiving plate 32, date module 33, strobe switch plate 34, shielding member 35, date imprint switch plate 36, light collector 37, harmful light shielding frame 38, and front cover 3
9 and so on.

The photographic film cartridge 26 has a mechanism for sending out a photographic film 42 into the cartridge 40 by rotation of a spool 41, and has a light-shielding cover 43 which can be opened and closed at a film feeding port. The light-shielding lid 43 has an end exposed together with the spool 41 from the side surface of the cartridge 40.

The main body base 25 has a cartridge chamber 44 for accommodating the cartridge 40 and a cartridge 40.
A film chamber 45 for accommodating the unexposed photographic film 42 drawn out from the film roll in the form of a film roll 42a is integrally formed. The rear end of the photo film 42 is locked to the spool 41.

The front cover 39 is formed with a shutter button 19 having a cutaway upper surface to provide elasticity. The shutter button 19 is formed with a pressing rod 19a linked to a shutter mechanism. Also, the front cover 39
On the front of the camera, a photographing lens 13, a light collector 14, a date imprint switch 15, an objective lens 16, and a strobe light emitting unit 1
7. Strobe charge switch 18, Film remaining number display window 2
0 and an opening for exposing the charging completion display section 21 to the outside are formed. The front cover 39 is detachably attached to the front surface of the main body 25 by nail coupling.

The rear cover 27 has an opening for exposing the eyepiece 23 and a part of the winding knob 13 to the outside. The rear cover 27 is detachably attached to the back of the main body base 25 by nail coupling.
Then, the photographic film cartridge 26 is stored in a light-tight manner. The bottoms of the cartridge chamber 44 and the film chamber 45 are open. After the photo film cartridge 26 is loaded, a pull-top type bottom cover 27 provided on the rear cover 27 is provided.
a and 27b respectively. Of these, the bottom lid 27a that closes the bottom of the cartridge chamber 44 is a lid that is opened when the cartridge is taken out from the developing station.

As shown in FIG. 3, a frame 46b for holding the objective lens 16 and the eyepiece 23 is integrally formed on the dark box 46. The frame 46b is open at the top to insert the objective and the eyepieces 16 and 23.

A bearing hole 53 is formed in the center of the upper surface of the cartridge chamber 44. Inner cylinder part 5 around bearing hole
3a is provided so as to protrude. The hoisting knob 22 is rotatably disposed on the inner cylindrical portion 53a. Hoisting knob 2
Reference numeral 2 denotes a dial-shaped operation unit 22a, a fork 22c formed to project from the lower surface of the operation unit 22a, and a fork 2
An outer cylinder portion 22b protrudes from the lower surface of the operation portion 22a so as to surround the operation portion 2c. The fork 22c is connected to the spool 4 inside the cartridge chamber 44 through the bearing hole 53.
1 is axially coupled with the engagement in the rotation direction. Operation unit 22
a is partially exposed from the opening of the rear cover 27.
The outer periphery of the outer tube portion 22b slidably contacts the outer periphery of the inner tube portion 53a. The one-tooth gear 2 is provided on the outer circumference of the outer cylindrical portion 22b.
2d is formed. A pressing plate 54 is formed on the inner wall of the upper surface of the front cover 39 in order to prevent the hoisting knob 22 from coming out of the bearing hole 53 upward.

A row of teeth 22e is formed on the outer periphery of the operation section 22a. A check pawl 55 provided on the main body base 25 is engaged with the tooth row 22e. The check pawl 55 prevents the winding knob 22 from rotating in the reverse direction. Also, when the photo film is wound up by one frame length on the tooth row 22e,
The locking claw 56a of the locking lever 56 that constitutes the film unwinding mechanism is engaged. The locking claw 56a is provided by the winding knob 2
2 and engages with the tooth row 22e from the direction intersecting the rotation axis, and holds the rotation position of the hoisting knob 22 when engaged.

A dark box 46 is formed between the cartridge chamber 44 and the film chamber 45. On the front surface of the dark box 46, a shutter opening 47 is formed, and a shutter blade 48 constituting a shutter mechanism is swingably attached. The shutter blade 48 has an opening / closing portion 48 a that opens and closes the shutter opening 47, and is closed by a shutter cover 49. The shutter cover 49 has a lens receiving cylinder 4
9a are formed. The taking lens 13 and the stopper ring 50 are sequentially inserted into the lens receiving cylinder 49a. On the back side of the dark box 46, an exposure opening 51 (see FIG. 5)
Are formed. The dark box 46 keeps the space from the taking lens 13 to the exposure opening 51 light-tight.

On the upper surface of the dark box 56, a shutter driving lever 60, a spring 61, a number display plate 62, a spring 63, a locking lever 56, and a cam member 65, which constitute a shutter mechanism, a film winding mechanism, a film counter mechanism, and the like. And the like, and a sprocket 66 is incorporated on the back surface through the shaft 65a of the cam member 65. These components are held on the main body base 25 together with the objective and the eyepieces 16 and 23 by a top plate 57 incorporated in the upper part of the dark box 56. The cam member 65 is integrally provided with a one-tooth gear 65b for stepping up the display panel, a stop cam 65c, and a shutter charge cam 65d in order from the top.

When the winding knob 22 is rotated in the film winding direction, the spool 41 rotates to wind the photographed photo film 42 into the cartridge 40. The transfer of the photographic film 42 causes the cam member 65 to rotate together with the sprocket 66 engaging with the perforation. The claw portion 56b of the locking lever 56 slides on the winding stop cam 65c. The stop cam 65c rotates the locking lever 56 from the stop position to the stop position against the urging of the spring 63 in conjunction with the winding of the film. When the photo film 42 is transported by the length of one frame, the stop cam 65c rotates by a predetermined amount,
A groove 65e provided in the winding stop cam 65c faces the claw portion 56b. At this time, the claw portion 56b enters the groove 65e,
The locking lever 56 rotates to the winding stop position by the bias of the spring 63. Thereby, rotation of the sprocket 66 is prevented. At the same time, the locking claw 56a of the locking lever 56 meshes with the tooth row 22e to prevent the winding knob 22 from rotating. The one-tooth gear 65b advances the number display plate 87 by one step by the rotation of the cam member 65 corresponding to one frame.

The projection 60a of the shutter drive lever 60 slides on the shutter charge cam 65d. The shutter drive lever 60 is rotated by the rotation of the cam member 65 so that the projection 60a is pressed by the shutter charge cam 65d, and rotates from the travel completion position toward the charge position against the urging force of the spring 61. Then, the engaged protrusion 60b protruding upward from the shutter drive lever 60 engages with the engaging protrusion 56c protruding downward from the locking lever 56, and the locking lever 56 at the locking position is engaged. Thereby, the shutter drive lever 60 is held at the charge position.

The pressing rod 19a of the shutter button 19
Presses the locking lever 56 at the winding stop position toward the winding stop releasing position against the bias of the spring 63 by the release operation. By this pressing, the locking lever 56 releases the holding of the shutter drive lever 60 at the charge position. As a result, the shutter drive lever 60 is
With the urging, the shutter blade 48 is instantaneously rotated toward the travel completion position, and one end of the shutter blade 48 is kicked off during the rotation. The shutter blade 48 rotates so that the opening / closing part 48 a crosses the photographing optical axis, and opens the shutter opening 47. When the kicking of the shutter drive lever 60 is completed, the shutter blade 48 is returned by the bias of the pullback spring 67 and closes the shutter opening 47.

After the completion of the exposure, the locking lever 56 is held at the anti-winding position by the shutter drive lever 60 at the traveling completion position. Thereby, the winding knob 22
The rotation lock between the cam and the cam member 65 is released, and the next film winding operation is allowed.

On the lower surface of the number display plate 62, a protrusion 62a for preventing winding is formed. Anti-winding protrusion 6
2a, when the number indicating plate 62 is in the rotational position when the photographing of the last frame is completed, the number of reference marks 2a enters the rotation locus of the rising protrusion 56d provided on the locking lever 56, and stops the locking lever 56. Hold in the release position. In this way, the shutter drive lever 60 is also held at the travel completion position by the locking lever 56, so that the film winding stop mechanism does not operate and the subsequent film winding operation is allowed to continue, and the photographing up to the end of the film is completed. Can be stored in the cartridge 40.

On the lower surface of the winding knob 13, a one-tooth gear 22 is provided.
A light-shielding lid closing mechanism 69 including d is provided. The light-shielding lid closing mechanism 69 includes a detection mechanism that detects the rotation amount of the winding knob 22 for storing all of the photographed photo film 42 in the cartridge 40, and a light-shielding lid 43 of the cartridge 40 when the rotation amount is detected. And a lid closing mechanism for closing the gears. These mechanisms, together with the one-tooth gear 22d described above, include a reduction gear 70, a counter gear 71, a timing lever 72, a lid closing member 73, a leaf spring 74, and a torsion spring 75. It is composed of

The reduction gear 7 is provided on the upper surface of the cartridge chamber 26.
0 and the counter gear 71 are rotatably mounted.
The reduction gear 70 is a two-stage gear, one of which meshes with the one-tooth gear 22d and the other with the counter gear 71, respectively. The count gear 71 rotates between an initial position in which the winding operation is not performed once and a winding completion position which is a rotation position when all the photographic films 42 up to the leading end of the film are stored in the cartridge 40. Note that the reduction gear 70 is for reducing the rotation amount of the count gear 71 within one rotation.

The counter gear 71 is provided with a cam disk 76 which rotates together. A notch 76a is formed on the outer peripheral surface of the cam disk 76. The leaf spring 74 is
By contacting the reduction gear 70 and the counter gear 71, erroneous rotation due to vibration or impact is prevented.

A hole 77 is formed in the upper surface of the cartridge chamber 44 at a position facing the light shielding cover 43 of the cartridge. A lid closing member 73 is rotatably attached to the bearing hole 77. The lid closing member 73 has a bearing hole 77
An engaging shaft 73a that engages with the end of the light-shielding lid 43, and a fan-shaped rotating portion 73b that holds the engaging shaft 73a and is exposed on the upper surface of the cartridge chamber 44. The lid closing member 73 is rotated between a closed position for closing the light-shielding lid 43 and an open position for opening, and is urged toward the closed position by a torsion spring 75. A locking claw 73 is provided on the rotating portion 73b.
d is formed. The lid closing member 73 is held at the open position by the timing lever 72 by engaging the engaging claw 72a formed at one end of the timing lever 72 with the locking claw 73d.

The timing lever 72 is rotatably supported on the upper surface of the cartridge chamber 44 between one end where the engaging claw 72a is provided and the other end.
It rotates between the holding position engaged with 3d and the release position where the engagement is released. At the other end of the timing lever 72, a detection projection 72b is formed. The timing lever 72 is urged toward the release position by urging the lid closing member 73 to the closed position by the torsion spring 75. Therefore, the detection projection 72b slides on the peripheral surface of the cam disk 76. The cam disk 76 holds the timing lever 72 at the holding position on the peripheral surface of the peripheral surface other than the notch 76a, and causes the notch 76a to face the detection projection 72b when the counter gear 71 rotates to the winding completion position. .
As a result, the detection projection 72b enters the notch 76a,
The timing lever 72 rotates to the release position. Therefore,
The lid closing member 73 rotates toward the closed position by the urging of the spring 75, and the light shielding lid 43 of the cartridge 40 closes.

Since the counter gear 71 is for measuring the amount of rotation of the hoisting knob, the position of engagement with the reduction gear 70 is determined in advance during assembly. When the photo film cartridge 26 is loaded, the amount by which the photo film 42 is pulled out from the cartridge 40 is predetermined. The amount of drawing out is such that the first photographing frame on the rear end side of the film is drawn out by the amount set in the exposure opening 51 and then further drawn out by the length of one frame. As a result, the rotational position of the spool 41 is determined.
The rotation position 2 is also predetermined.

As shown in FIG. 4, the strobe unit 31 is inserted into the space between the dark box 46 and the film chamber 45 and the space above the film chamber 45 in the main body 25.
Can be detachably attached by nail coupling. On the front surface of the strobe board of the strobe unit 31, a receiving plate 32 is arranged. On the receiving plate 32, a strobe switch plate 34 and a date module 33 are arranged side by side. Receiving plate 32
Supports the strobe switch plate 34 movably. The flash switch plate 34 starts charging the flash unit 31 by operating the flash charging switch 18.

On the front of the date module 33, a date imprint switch member 36 and a light collector 37 are arranged. The light collector 37 makes external light or strobe light incident on the liquid crystal display 33 a of the date module 33. The date imprint switch member 36 transmits the light incident from the light collector 37 by the operation of the date imprint switch 15 to the liquid crystal display unit 33.
It moves between the date OFF position to be shielded on the front side of a and the date ON position to be opened.

The date module 33 includes a module substrate and a module for integrating a crystal oscillator, a clock circuit, an LCD driver, a date initial setting switch, and the like, in addition to a liquid crystal display section 33a for generating characters of a transmission type. It comprises a power supply battery 80 and a battery contact piece 81. The battery contact piece 81 is for connecting the terminal of the power supply battery 80 facing the front cover 39 to the date module 33, and is attached to the inner wall of the front cover 22.

The clock circuit stores a calendar for several years in the future, corrects a built-in reference pulse generator by a crystal oscillator, obtains an accurate time pulse, and obtains the year, month, and date. The association is accurately displayed on the liquid crystal display unit 33a. The date initial setting switch is for performing date initial setting. The display of the date module 33 is set in advance based on the date of production at the factory, and
It cannot be changed from outside 0. The power supply battery 80 is of a button type and is attached so that it can be easily replaced when the data module 33 is removed.

As shown in FIG. 5, the shutter blade 48 is integrally formed with a date light shielding portion 48b that shields the date light opening 83 when it is in the closed position that shields the shutter opening 47. The date light shielding portion 48b is arranged so that the photographing light shielding portion 4
8a. For this reason, even if the shutter blade 48 swings to the extent that the shielding portion 48 a does not open the shutter opening 47 due to vibration or the like, the shielding portion 48 b for date light may expose the opening 83.

Therefore, a shielding member 35 dedicated to date light is provided on the front surface of the liquid crystal display section 33a. This shielding member 33 is formed in a thin plate with an elastic member.
The shutter button 19 is pressed down in conjunction with the pressing operation, and the liquid crystal display unit 33a is exposed by utilizing elastic deformation when the shutter button 19 is pressed down. The date light transmitted through the liquid crystal display unit 33a enters the dark box 46 through an opening 83 provided at a position different from the shutter opening 47.

The date light guided into the dark box 46 is guided to the exposure aperture 51 along the optical axis of the imaging lens 84, and forms an image on the photographic film 42 set therein from the emulsion surface side. The imaging lens 84 is attached to the harmful light shielding frame member 38 so as to be located outside the photographic light beam passing through the dark box 46. The harmful light shielding frame member 38 is mounted in the dark box 46 from the rear side through the exposure opening 51, and has a frame for cutting harmful light.

The operation of the lens-fitted film unit 10 constructed as described above will be described with reference to FIG. At the factory, first, as described with reference to FIG.
3, locking lever 56, sprocket 66, cam member 6
5. The objective lens 56, the eyepiece 16, and the number display plate 62 are sequentially assembled. These are incorporated in a state where the film stopping mechanism is not operated, that is, in a state where the shutter is not charged.

Next, a lid closing member 73, a reduction gear 70, a leaf spring 74, a timing lever 72, a counter gear 71, and a torsion spring 75 constituting a light shielding lid chain-making mechanism are sequentially mounted. After that, the top plate 57 is attached. Top plate 57
By attaching the above, the above-mentioned parts are prevented from coming off. This completes the mounting of the film stopping mechanism and the film counter mechanism. Thereafter, a winding knob 22 constituting a film winding mechanism is attached. These mounting directions are one direction from above.

Next, the shutter blades 4
8. Attach the pullback spring 67, the shutter cover 49, the taking lens 13, and the stopper ring 50. The stopper ring 50 prevents the photographing lens 13 from falling off. After that, the strobe unit 31, the receiving plate 32,
Strobe switch plate 34, date module 33, shielding member 35, date imprint switch member 36, light collector 3
7, and the front cover 39 are sequentially assembled from the front.
The strobe unit 31 is attached to the main body base 25 by nail coupling. On the other hand, the receiving plate 32, the strobe switch plate 34, the date module 33, the shielding member 35, the date imprint switch member 36, and the light collector 37 are sandwiched between the main body base 25 and the front cover 39.

Next, the operation of the shutter mechanism, the film counter mechanism, and the light-shielding cover closing mechanism is checked, and then the winding knob 22 and the counter gear 71 are set to predetermined rotation positions. Thereafter, the shutter mechanism is charged. In this operation, the jig is inserted from the back side, the tip of the jig is hooked on a part of the shutter driving lever 60, and the jig is rotated to forcibly rotate the shutter driving lever 60 to the charging position. By doing so, the locking lever 56 rotates to the winding stop position, the locking lever 56 holds the shutter drive lever 60 at the charging position, and the locking claw 56a meshes with the tooth row 22e as shown in FIG. Then, the rotation of the winding knob 22 is locked. Thus, the rotational position of the winding knob 22 does not change. Also, the tooth row 22e
Is engaged with the check pawl 55. The check claw 55 is engaged with the locking claw 56a from a direction facing the locking claw 56a. Therefore, the winding knob 22 is connected to these two members 55 and 56.
a, it does not rotate erroneously, and does not come off because it is pressed by the pressing plate 54 of the front cover 22.

The film loading step is at a different place from the step of performing the shutter charge. Therefore, the film is transported or transported in this state in the film loading step. During this time, even if vibration or shock occurs, the shutter is charged, so that the rotational position of the hoist knob 22 does not change.

In the film loading step, the photographic film cartridge 26 is supplied. This cartridge 40
Draw out the photo film 42 from. In this drawer, the first photographing frame on the rear end side of the film is pulled out by the amount set at the position facing the exposure opening 51, and thereafter, it is further pulled out by the length of one frame. The unexposed unexposed photographic film 42 is rolled into a film roll 42.
a. By controlling the amount of pulling out the photo film 42 in this manner, the amount of rotation of the winding knob 22 for winding up the entire photo film 42 into the cartridge 40 can be kept constant.

The roll film 42a is loaded in the film chamber 45, and the cartridge 40 is loaded in the cartridge chamber 44.
Is loaded from the axial direction of the spool 41. At this time, since the rotation position of the winding knob 22 is not shifted, the spool 41 is smoothly engaged with the fork 22c of the winding knob 22. The rotating position of the hoisting knob 22 is held by the engagement of the spool 41 with the fork 22c. After the film is loaded, the rear cover 27 is attached, and the two bottom lids 27a and 27b are closed, so that the photographic film cartridge 26 is light-tightly incorporated. Thereby, the unit main body 11 is completed.

The unit body 11 is transported from the film loading step to the final inspection step in the light room. In the final inspection process, the inspection of the date module 33 and the unit body 1
Perform the visual inspection of 1. The inspection of the date module 33 is performed by connecting a jig to the contact of the date module 33 through an inspection opening provided in the front cover 39. After that, the date imprint switch 18 is set to the date OFF position and the photographing lens 13 is covered from the outside, and then the shutter release button 19 is pressed to perform shutter release.
At this time, nothing is shown on the unexposed photographic film 42 and the unexposed photographic film 42 is pulled out by one frame, so that there is no problem even if one frame is photographed empty. As a result, the charged state of the shutter mechanism is released, so that the film winding operation is started after shipment. Then, after the date imprint switch 15 is set to the date ON position, it is transported to the exterior body mounting step.

In the exterior body mounting step, the exterior body 12 is mounted, and the jig insertion opening and the like are hidden. Exterior body 1
The film unit with lens 10 to which the lens unit 2 is attached is conveyed to a packaging process, where it is stored in a storage case and then shipped.

In the above embodiment, the shutter charge is performed with the front cover 39 attached, and the winding knob 22
The rotation position of the front cover 39 is not shifted.
Before attaching the front cover 39, the shutter charge is performed to prevent the winding knob 22 from rotating.
And then transported to the film loading step. Further, the step of attaching the winding knob and the step of setting the rotation position of the winding knob to the initial position may be performed in the same step, or may be performed in the same step up to the shutter charge.

Further, in the above-described embodiment, since the IX240 type photo film cartridge having the light shielding cover at the film outlet of the cartridge is used, the light shielding cover closing mechanism is built in. There is a film cartridge. In the case of a type incorporating this type, the light-shielding lid closing mechanism is omitted.

In addition to or in place of the light-shielding lid closing mechanism, a winding-up lock mechanism that locks a winding-up knob when the entire photographed film is wound into the cartridge may be provided. This wind-up lock mechanism includes a detection mechanism for detecting the amount of rotation of a wind-up knob for winding up a photographed photo film, and a mechanism for locking the rotation of the wind-up knob in response to the detection of the detection mechanism. I just need. When a wind-up no-lock mechanism is employed in addition to the light-shielding lid closing mechanism, the detection mechanism can also be used. Even if a wind-up blocker mechanism is used, if the shutter is charged after the wind-up blocker mechanism and the wind-up knob are attached, the rotation position of the wind-up knob is set to the initial position, and then the wind-up lock is reached until the film loading process is reached. The relative positional relationship between the blocking mechanism and the hoist knob can be maintained.

[0052]

As described above, in the method for manufacturing a film unit with a lens according to the present invention, the rotation position of the winding knob is set to a position where it engages with the spool in the film loading step, and then the shutter drive lever is charged. Since the third step of moving the shutter mechanism to the position and charging the shutter mechanism with the shutter is provided, the rotation of the wind-up knob is locked from the third step to the film loading step after that step. As a result, the rotational position of the winding knob does not shift, so that the spool can be smoothly engaged with the winding knob in the film loading step. Further, since the function of preventing the winding knob from coming off is also achieved, it is possible to reliably prevent the problem that the winding knob comes off during conveyance. Further, in the method of manufacturing the film unit with the lens according to the third aspect, the relative positional relationship between the light-shielding lid closing mechanism and the winding knob can be maintained, so that the operation of the light-shielding lid closing mechanism is assured. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a film unit with a lens embodying the present invention.

FIG. 2 is an exploded perspective view of a unit main body.

FIG. 3 is an exploded perspective view showing a shutter mechanism, a film winding mechanism, a film winding stopping mechanism, a film counter mechanism, and the like.

FIG. 4 is an exploded perspective view showing a main part of the date light imprinting mechanism.

FIG. 5 is a perspective view schematically showing an image forming optical system of a date light and a photographing optical path.

FIG. 6 is a flowchart showing a procedure for assembling the film unit with a lens.

FIG. 7 is an explanatory view showing a winding knob in a shutter charged state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Film unit with a lens 11 Unit main body 12 Exterior body 13 Photographing lens 22 Winding knob 28 Shutter mechanism 29 Film unwinding mechanism 30 Film counter mechanism 69 Light shielding lid closing mechanism

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Mitsuhiro Moriya 210 Nakanakanuma, Minamiashigara-shi, Kanagawa Prefecture Fuji Photo Film Co., Ltd. F-term (reference) 2H020 AA05 2H101 AA09

Claims (3)

[Claims] A shutter mechanism for moving a shutter drive lever to a charging position by rotation of a wind-up knob in a film wind-up direction, a shutter mechanism for charging the shutter, and preventing rotation of the wind-up knob when the shutter mechanism is shutter-charged; A film winding stop mechanism that permits rotation of the winding knob after the release is completed, and a spool in which one end of the unexposed photographic film is locked after attaching the winding knob, the shutter mechanism, and the film winding stop mechanism to the main body base. And a photo film in which the other end of the photo film is pulled out by a predetermined amount from the cartridge is conveyed to a film loading step of loading the base of the main body, where the spool is axially coupled to the winding knob in the rotational direction by engagement. In the method of manufacturing a film unit with a lens, A first step of attaching a shutter mechanism and a film winding mechanism to the body base; and a step performed after the first step, wherein the winding knob is attached to the body base and the rotation position of the winding knob is changed by a spool in the film loading step. A second step of setting the shutter mechanism to a position where the shutter mechanism is engaged, and a third step performed after the second step, wherein the shutter drive lever is moved to the charging position to charge the shutter mechanism.
And a step of transporting the film in a state where the winding knob is prevented from rotating from the third step to the film loading step after the third step. . 2. A shutter mechanism for moving a shutter drive lever to a charging position by rotation of a wind-up knob in a film wind-up direction, and a shutter mechanism for shutter charging when the shutter mechanism is shutter-charged; A film lock mechanism that allows the rotation of the wind-up knob after the release is completed, and a light-shielding lid closing mechanism that closes the light-shielding lid of the cartridge in response to detecting the amount of rotation of the winding knob for winding up all of the photographed photo film. A winding knob, a shutter mechanism,
After attaching the film winding-stopping mechanism and the light-shielding lid closing mechanism to the base of the main body, a cartridge with a spool in which one end of the unexposed photographic film is locked, and the other end of the photographic film drawn out of the cartridge by a predetermined amount. A film loading step of loading the film into the main body base, wherein the spool is engaged with the winding knob in the rotational direction and is axially coupled with the lens, wherein the shutter mechanism, the film winding stopping mechanism, A first step of attaching the light-shielding lid closing mechanism to the main body base; and a step performed after the first step, wherein the winding knob is attached to the main body base and the rotational position of the winding knob is engaged with the spool in the film loading step. Position and an initial position of the amount of rotation detected by the light-shielding lid closing mechanism. And a third step, which is performed after the second step and moves the shutter drive lever to the charging position to charge the shutter mechanism. The film loading step is performed after the third step. A method of manufacturing a film unit with a lens, wherein the film is conveyed while rotation of the winding knob is prevented. 3. A non-return claw for preventing rotation in a direction opposite to a film winding direction by being attached to a main body base of the winding knob. A manufacturing method of the film unit with a lens according to the above.