JP2000075379A - Production of film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely assemble a film unit with a lens in a cartridge in which Brownie film is housed by pulling out the leader part of the Brownie film in a 1st cartridge, engaging and fitting it to the engaging and fitting member of a 2nd cartridge and taking it up to a take-out shaft. SOLUTION: In a 1st turntable mechanism 20, and 2nd cartridge C2 and the 1st cartridge C1 are supplied and set in a clamping member 24 in a 1st station 20a and in a 2nd station 20b, respectively. The leading edge of film is connected to the engaging and fitting member and wound by a specified amount in a 3rd station 20c. In a 2nd turntable mechanism 30; the 1st cartridge C1 and the 2nd cartridge C2 are loaded in an unexposed film chamber and in an exposed film chamber, respectively, in a state where the film leader parts of the 1st and the 2nd cartridges C1 and C2 are connected to the engaging and fitting member in a 2nd station 30b. A back cover 13 is loaded in a 3rd station 30c.

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, and more particularly, to a method for manufacturing a film unit with a lens using a cartridge for storing a brownie film in a manufacturing process at least in an exposed film chamber. About the method.

[0002]

2. Description of the Related Art An ordinary camera uses 135 film, but it is desirable to use a brownie film having a larger screen size than 135 film in order to obtain still higher quality pictures. Therefore, professional photographers and advanced amateurs use brownie films to obtain 6 × 4.
Intermediate cameras that form screen sizes such as 5, 6, 6, 6, 7 and 9 cm are often used. However, 1
In reality, the penetration rate of cameras using brownie films is much lower than that of cameras using 35 films.

One of the reasons is the difficulty in handling brownie films. A typical brownie film is a film referred to as J120 in JIS, and the entire base surface side of the brownie film is closely attached to a light-shielding backing paper and wound around a winding shaft.

FIG. 1 shows a conventional brownie film loaded in a camera. At the time of film loading, the brownie film wound around the first winding shaft S1 together with the light-shielding backing paper is loaded into the unexposed film chamber 51b of the unit main body 51, and the first winding is carried out into the exposed film chamber 51c. A second take-up shaft S2 having the same shape as the shaft S1 is loaded, and the end Ba of the light-shielding backing paper B is inserted into a slit S2a on the side surface of the second take-up shaft S2 as a leader paper. The take-up shaft S2 is rotated to move the brownie film from the first take-up shaft S1 to the second take-up shaft S.
Take up to 2. After the photographing is completed, the user takes out the camera with the brownie film wound around the second winding shaft S2 and requests development. Then, in the next photographing, the first winding shaft S1 remaining as a single product is loaded into the exposed film chamber 51c as the second winding shaft S2.

[0005] There is also a film called J220, but it has a leader paper at the front end and a trailer paper at the rear end, and the point that a double-length film is wound bare. Except for this, it is the same as J120.

As described above, the brownie film is only wound around the take-up shaft together with the light-shielding backing paper, and is not housed in the patrone like the 135 film. May be caused.

As described above, in order to make it possible to use a brownie film which is difficult to handle as easily as a 135 film, it is desirable to store the brownie film in a cartridge (patrone). And, even if it is made into a cartridge, it is necessary to be compatible with a conventional camera loaded with a brownie film.

[0008] The film taken out of the cartridge and photographed is rewound into the cartridge again like 135 film, and the advantage of the brownie film that does not require rewinding is lost. For this reason, it is desirable to arrange a cartridge without a film in the exposed film chamber and wind the brownie film into the cartridge.

[0009]

However, in order to wind a film around a take-up shaft arranged inside the cartridge, the cartridge needs to be provided only with the take-up shaft used for the current brownie film. Because it is covered with, the slit portion of the winding shaft is not visible,
It is very difficult to attach the leader paper to the winding shaft.

Accordingly, the present applicant has already filed an application for a lens-fitted film unit using a cartridge which can easily engage with a leader portion of a brownie film and can be wound around a winding shaft.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a manufacturing method capable of easily and reliably assembling a film unit with a lens in a cartridge containing a brownie film.

[0012]

The above object can be attained by one of the following.

(1) An end of the brownie film is engaged with a first winding shaft in a first cartridge, and
Winding the brownie film around the first take-up shaft by rotating the take-up shaft, and storing the brownie film in the first cartridge; and loading the brownie film in the second cartridge having substantially the same shape as the cartridge. Projecting the tip of an engaging member attached to the second take-up shaft from the second cartridge; pulling out a leader portion of the brownie film in the first cartridge; Engaging the engaging member and rotating the second winding shaft to wind the leader portion around the second winding shaft; and wherein the first cartridge and the second cartridge In a state where the first cartridge is connected to the unexposed film chamber of the unit main body and the second cartridge is exposed to the exposed state of the unit main body in a state of being connected by the leader unit. A step of respectively loading the Irumu chamber method for producing a lens-fitted film unit, characterized in that it and a step of attaching the back cover of the light-tight state the Brownie film to said unit body.

(2) The end of the brownie film is engaged with a first winding shaft in a first cartridge, and
Winding the brownie film around the first take-up shaft by rotating the take-up shaft, and storing the brownie film in the first cartridge; and loading the brownie film in the second cartridge having substantially the same shape as the cartridge. Projecting the tip of an engaging member attached to the second take-up shaft from the second cartridge; and placing the first cartridge in the unexposed film chamber of the unit body. Loading each of the exposed film chambers of the unit main body, and pulling out a leader portion of the brownie film in the first cartridge loaded in the unexposed film chamber, and loading the leader portion in the exposed film chamber. And the second cartridge is engaged with the engaging member of the second cartridge.
Rotating the take-up shaft to wind the leader portion around the second take-up shaft; and attaching a back cover to the unit body to make the brownie film light-tight. A method for producing a lens-fitted film unit.

(3) An end portion of the brownie film is engaged with the first winding shaft, and the brownie film is wound around the first winding shaft by rotating the first winding shaft. The step of forming an exposure film roll, and the tip of an engaging member attached to a second winding shaft in a cartridge whose axial length is substantially the same as the length of the first winding shaft. Projecting the cartridge from the cartridge, pulling out the leader portion of the brownie film from the unexposed film roll, engaging the engaging member of the cartridge, and rotating the second winding shaft to bring the leader portion into the second Winding the unexposed film roll around the take-up shaft, and connecting the unexposed film roll to the cartridge with the cartridge being connected by the leader unit. In the unexposed film chamber, a step of loading the cartridge into the exposed film chamber of the unit main body, and a step of attaching a back cover to the unit main body to make the brownie film light-tight are provided. A method for manufacturing a film unit with a lens.

(4) An end portion of the brownie film is engaged with the first winding shaft, and the brownie film is wound around the first winding shaft by rotating the first winding shaft. A step of forming an exposure film roll, and the tip of an engaging member attached to a second winding shaft in a cartridge having an axial length substantially equal to the first winding shaft. Projecting the cartridge from the cartridge, loading the unexposed film roll into the unexposed film chamber of the unit main body, and loading the cartridge into the exposed film chamber of the unit main body, and loading the unexposed film roll into the unexposed film chamber. Withdrawing the leader portion of the brownie film from the unexposed film roll, engaging the engaging member of the cartridge loaded in the exposed film chamber, Rotating the take-up shaft to wind the leader portion around the second take-up shaft; and attaching a back cover to the unit body to bring the brownie film into a light-tight state. A method for producing a lens-fitted film unit.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to the description of the first and second embodiments of the method for manufacturing a film unit with a lens according to the present invention, a film unit with a lens manufactured by this manufacturing method will be described first.

FIG. 2 is a perspective view of the camera viewed from the back with the back cover and film removed, and FIGS. 3 and 4 are views of another form of the engaging member and the winding shaft. In FIG. 2, reference numeral 11 denotes a unit body on which various photographing mechanisms are mounted.
2 and the back cover 13 are light-tightly covered. The subject light that has passed through the photographic lens, shutter, and aperture (not shown) is focused on the image frame portion 11a of the unit body 11, and
Expose the film located at a. C1 is a first cartridge containing an unexposed brownie film,
A second cartridge C2, which is loaded in the unexposed film chamber 11b of the unit body 11 and has the same shape as the first cartridge C1 and does not contain a brownie film, is loaded in the exposed film chamber 11c.

Here, the first cartridge C1 and the second cartridge C2 are made of an outer diameter d _{1 of} a flange of a conventional winding shaft shown in FIG. 1 in consideration of compatibility with a conventional camera for a brownie film. And cartridge outer diameter D ₁
It was substantially the same, set of conventional winding axis length d ₂ and the cartridge length D ₂ to be substantially the same.

The brownie film used in the present invention may have the same shape as the conventional J120 or J220, or may have a slightly different shape.

The cartridge comprises an exterior member 1a and a cap 1b for covering both sides of the winding shaft 2. The winding shaft 2 is inserted therein as shown in FIG. One end of each of the engaging members 3 and 4 overlaps and is attached to the winding shaft 2. The other ends of the engaging members 3 and 4 are separated into two sheets, and a brownie film is sandwiched between the inner surfaces of the two engaging members 3 and 4 facing each other, and the entrance / exit of the cartridge to which the telemp is attached. 1c
Has a coefficient of friction sufficient to pull the brownie film into the cartridge via the, so that the leader portion L (tip) of the brownie film is inserted and wound up, thereby securely holding and holding the brownie film. In this way, the brownie film is attached to the fastening members 3 and 4.
And wound around the take-up shaft 2, and the leader portion L
The first cartridge C1 shown in FIG. When the lower ends of the two engaging members 3 and 4 are connected to each other as shown in FIG. It is less likely to get caught at the doorway.

On the other hand, the second cartridge C2 is a cartridge in which no brownie film is stored in the first cartridge C1, and the tips of the engaging members 3, 4 protrude from the cartridge C2. The leader portion L is pulled out and inserted between the engaging members 3 and 4, and the exposed film chamber 1 is exposed.
A winding shaft (not shown) provided at the upper end of the winding shaft 1c is engaged with the concave portion 2c of the winding shaft 2, and the winding knob 14 is rotated. Then, the leader portion L is sandwiched between the engagement members 3 and 4, and is wound around the winding shaft 2 in the second cartridge C2. Thereafter, the take-up shaft 2 is rotated by a predetermined amount by an external operation, and the release button 15 is pressed in a state where the first frame appears so as to take a picture. Reference numeral 16 denotes a finder.

When the take-up shaft 2 in the second cartridge C2 is further rotated after all frames on the film are exposed and photographing is completed, the tips of the engaging members 3 and 4 hold the brownie film. In this state, the first cartridge C1 is pulled out of the first cartridge C1, whereby the holding state of the engagement members 3, 4 is released, and the end of the brownie film is disengaged from the engagement members 3, 4 in the first cartridge C1. And the brownie film are all wound into the second cartridge C2. Thereafter, the second cartridge C2 is taken out for film development.

(First Embodiment) Next, a method for manufacturing a film unit with a lens will be described. FIG. 5 is a schematic configuration diagram of a manufacturing apparatus for a film unit with a lens.

First, the steps of the cartridge will be described with reference to FIGS. As a process of the first cartridge C1, the end of the brownie film is attached to the first cartridge C1.
1, the brownie film is wound around the first take-up shaft 2 by rotating the first take-up shaft 2 by rotating the first take-up shaft 2, and is inserted into the first cartridge C <b> 1. To store.

In the process of the second cartridge C2, the engaging members 3 attached to the second winding shaft 2 in the second cartridge C2, which is a cartridge not containing the brownie film, are used. 4 is made to protrude from the second cartridge C2.

Next, the manufacturing apparatus and process of the film unit with the lens will be described with reference to FIG. 5. The first turntable mechanism 20 rotates the shaft 22 by the rotation of the motor 23, and turns the shaft fixed to the shaft 22. The table 21 rotates. The turntable 21 is provided with a gripping member 24,
There are two stations. At the first station 20a, the second cartridge C2 is supplied and set on the gripping member 24. At the second station 20b, the first cartridge C1 is supplied and set on the gripping member 24. Further, in the third station 20c, the leading end of the film is sucked by a suction plate (not shown), connected to the engaging members 3 and 4 (see FIG. 4), and wound up by a predetermined amount. Further, the fourth station 2
In the case of 0d, the second end of the
It is supplied to the turntable mechanism 30.

Next, in the second turntable mechanism 30, the shaft 32 is rotated by the rotation of the motor 33, and the turntable 31 fixed to the shaft 32 is rotated. Turntable 31
Is provided with a gripping member 34 and has five stations. At the first station 30a, the unit main body 11 in which the exposure mechanism and the film winding mechanism are already incorporated is supplied and set on the gripping member. At the second station 30b, the first cartridge C1 is placed in the unexposed film chamber while the first cartridge C1 and the second cartridge C2 connect the film leader L to the engaging members 3 and 4. The cartridges C2 are respectively loaded into the exposed film chambers. Further, the third station 30c
Then, the back cover 13 is attached, the inspection after completion of the assembly is performed in the fourth station 30d, and the lens-equipped film unit whose assembly inspection is completed is taken out in the fifth station 30e. As described above, a film unit with a lens can be easily manufactured.

(Second Embodiment) Another manufacturing method of a film unit with a lens will be described. FIG. 6 is a schematic configuration diagram of another manufacturing apparatus of a film unit with a lens. In FIG. 6, the shaft 42 of the turntable mechanism 40 is rotated by the rotation of the motor 43, and the turntable 41 fixed to the shaft 42 is rotated. The turntable 41 is provided with a gripping member 44 and has eight stations. In the first station 40a, a unit body in which an exposure mechanism, a film winding mechanism, and the like are incorporated is supplied and set on the gripping member 44. In the second station 40b, the second cartridge C2 is loaded, and in the third station 40c, the first cartridge C1 is loaded. At the fourth station 40d, the film leader L is engaged with the engaging members 3 and 4.
The fifth station 40e winds the film by a predetermined amount.
At the sixth station 40f, the back cover 13 is attached. At the seventh station 40g, the assembled product is inspected. From the eighth station 40h, the inspected film unit with lens is taken out. As described above, a film unit with a lens can be easily manufactured.

Next, prior to the description of the third and fourth embodiments of the method of manufacturing another film unit with a lens of the present invention, the film unit with a lens manufactured by this manufacturing method will be described first. 2 and 3 are denoted by the same reference numerals and description thereof is omitted.

FIG. 7 is a perspective view of the camera viewed from the back with the back cover and the film removed. In FIG. 7, R denotes an unexposed film roll wound with an unexposed brownie film. A cartridge C loaded in the unexposed film chamber 11b of the unit body 11 and containing no brownie film is exposed in the exposed film chamber 11c. To be loaded.

The cartridge C has an outer diameter d ₁ of the flange of the conventional winding shaft and an outer diameter D _{1 of the} cartridge shown in FIG. 1 in consideration of compatibility with a conventional camera for a brownie film. It was substantially the same, set of conventional winding axis length d ₂ and the cartridge length D ₂ to be substantially the same.

The unexposed film roll R reliably holds the brownie film by inserting the leading end of the brownie film into the slit of the winding shaft S1 shown in FIG. If a light-shielding paper is used for the leader portion L of the film, it can be handled in a bright room.

On the other hand, the cartridge C is the same as the second cartridge C2 shown in FIG. 2 and does not contain a brownie film.

Thereafter, the take-up shaft 2 is rotated by a predetermined amount by an external operation so that the first frame appears so as to press the release button 15 to take a picture. Reference numeral 16 denotes a finder.

When the take-up shaft 2 in the cartridge C is further rotated after all frames on the film are exposed and photographing is completed, the film comes out of the slit and all the brownie films are taken up in the cartridge C. Can be Thereafter, the cartridge C is taken out for film development.

(Third Embodiment) Another method of manufacturing a film unit with a lens will be described. FIG. 8 is a partial configuration diagram of a manufacturing apparatus of a film unit with a lens. The first cartridge C1 shown in FIG. 2 is replaced with the unexposed film roll R. Parts different from the manufacturing apparatus of FIG. 5 will be described.

First, the steps of an unexposed film roll and a cartridge will be described with reference to FIGS. In the process of the unexposed film roll R, the end of the brownie film is engaged with the first winding shaft S1, and the first winding shaft S
1 to rotate the brownie film
The film is wound around a take-up shaft S1 to form an unexposed film roll.

In the cartridge C step, the tips of the engaging members 3 and 4 attached to the second winding shaft 2 in the cartridge C in which no brownie film is stored are projected from the cartridge C. .

Next, in FIGS. 7 and 8, the cartridge C is set on the holding member 24, and then the unexposed film roll R is set on the holding member 24. Thereafter, the film leader L is connected to the engaging members 3 and 4 of the cartridge C. The subsequent steps are the same as those of the third station 20c and thereafter in FIG.

(Fourth Embodiment) Another method of manufacturing a film unit with a lens will be described. FIG. 9 is a partial configuration diagram of an apparatus for manufacturing a film unit with a lens. The first cartridge C1 shown in FIG. 2 is replaced with the unexposed film roll R, and different points from FIG. 6 will be described.

Next, referring to FIGS. 7 and 9, the cartridge C is loaded into the unit body 11 at the second station 40b of the turntable 41, and the third station 40c is set.
Then, the unexposed film roll R is loaded into the unit main body 11. Thereafter, the film leader L is connected to the engaging members 3 and 4 of the cartridge C. Subsequent steps are the same as in the fourth station 40d and thereafter shown in FIG.

[0043]

As described above, the following effects can be obtained. According to the method of manufacturing a film unit with a lens using the two cartridges according to the first and second aspects, it is possible to easily assemble, manufacture quickly and reliably, and furthermore, manufacture in a bright room.

According to the method of manufacturing a film unit with a lens using an unexposed film roll and a cartridge according to the third and fourth aspects, the assembly can be easily performed, and the manufacturing can be performed quickly and reliably.

[Brief description of the drawings]

FIG. 1 is a view showing a conventional brownie film loaded in a camera.

FIG. 2 is a perspective view of the camera viewed from the back with a back cover and a film removed.

FIG. 3 is a view of another embodiment of an engaging member and a winding shaft.

FIG. 4 is a view of another embodiment of an engaging member and a winding shaft.

FIG. 5 is a schematic configuration diagram of an apparatus for manufacturing a film unit with a lens.

FIG. 6 is a schematic configuration diagram of another manufacturing apparatus of a film unit with a lens.

FIG. 7 is a perspective view of the camera viewed from the back with a back cover and a film removed.

FIG. 8 is a partial configuration diagram of an apparatus for manufacturing a film unit with a lens.

FIG. 9 is a partial configuration diagram of another manufacturing apparatus of the film unit with a lens.

[Explanation of symbols]

 Reference Signs List 1a exterior member 1b cap 1c doorway 2 take-up shaft 3,4 engaging member 11 unit main body 11a image frame portion 11b unexposed film room 11c exposed film room 13 back cover 20 first turntable mechanism 21 turntable 30 second turn Table mechanism 31 Turntable 40 Turntable mechanism 41 Turntable C1 First cartridge C2 Second cartridge C Cartridge L Leader R Unexposed film roll

Claims (4)

[Claims] 1. An end of a brownie film is engaged with a first winding shaft in a first cartridge, and the first winding shaft is rotated to wind the brownie film into the first winding shaft. Wound around a shaft and housed in the first cartridge, and the tip of an engaging member fastened to a second winding shaft in a second cartridge having substantially the same shape as the cartridge. Projecting the second cartridge from the second cartridge, pulling out the leader portion of the brownie film in the first cartridge, engaging with the engaging member of the second cartridge, and rotating the second winding shaft; Winding the leader portion around the second winding shaft with the first cartridge and the second cartridge.
Loading the first cartridge into the unexposed film chamber of the unit body and the second cartridge into the exposed film chamber of the unit body, with the cartridges connected by the leader unit; Attaching a back cover for bringing the brownie film into a light-tight state on the unit main body. 2. An end of a brownie film is engaged with a first winding shaft in a first cartridge, and the first winding shaft is rotated to wind the brownie film into the first winding shaft. Wound around a shaft and housed in the first cartridge, and the tip of an engaging member fastened to a second winding shaft in a second cartridge having substantially the same shape as the cartridge. Protruding from the second cartridge, loading the first cartridge into an unexposed film chamber of the unit body, and loading the second cartridge into the exposed film chamber of the unit body, The leader portion of the brownie film in the first cartridge loaded in the film chamber is pulled out, and the second cartridge loaded in the exposed film chamber is pulled out. And rotating the second take-up shaft to take up the leader portion around the second take-up shaft, and bringing the brownie film into a light-tight state on the unit body. A method of manufacturing a film unit with a lens, comprising: attaching a back cover. 3. An endless portion of the brownie film is engaged with a first winding shaft, and the first winding shaft is rotated to wind the brownie film around the first winding shaft so as not to be exposed. A step of forming a film roll, and attaching the leading end of an engaging member attached to a second winding shaft in a cartridge having an axial length substantially equal to the first winding shaft to the cartridge And withdrawing the leader portion from the unexposed film roll,
Engaging the engaging member of the cartridge, rotating the second winding shaft to wind the leader portion around the second winding shaft, and the unexposed film roll and the cartridge A step of loading the unexposed film roll into the unexposed film chamber of the unit body, and loading the cartridge into the exposed film chamber of the unit body, while being connected by the leader unit; and A method of manufacturing a film unit with a lens, comprising: attaching a back cover to make a light-tight state. 4. An endless portion of the brownie film is engaged with a first winding shaft, and the first winding shaft is rotated to wind the brownie film around the first winding shaft so as to be unexposed. A step of forming a film roll, and attaching the leading end of an engaging member attached to a second winding shaft in a cartridge having an axial length substantially equal to the first winding shaft to the cartridge Projecting the unexposed film roll into the unexposed film chamber of the unit body, loading the cartridge into the exposed film chamber of the unit body, and loading the unexposed film roll into the unexposed film chamber of the unit body. The leader portion of the brownie film is pulled out from the exposure film roll, and is engaged with the engagement member of the cartridge loaded in the exposed film chamber. A step of rotating a take-up shaft to wind the leader portion around the second take-up shaft; and attaching a back cover to the unit main body to bring the brownie film into a light-tight state. A method for manufacturing a film unit with a lens.