JPH05303175A - Disassembling jig for film unit with lens - Google Patents

Abstract

PURPOSE:To obtain a jig which can safely and efficiently execute disassembling work. CONSTITUTION:A front cover 10 and a back cover 13 are coupled by the engagement of a catch 16 and a locking hole 18. A pressing part 31a and a regulation part 31b are integrally provided on the jig for disassembling 31. The catch 16 is pressed by inserting the pressing part 31a in the hole 18. The length of the inserting direction of the pressing part 31a is set equal to or above the depth of the hole 18. The inserting amount of the pressing part 31a is regulated by making the regulation part 31b abut on the outside wall of the cover 10 so as to prevent the pawl 18 from being broken or damaged when it is excessively bent.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig used when disassembling parts joined in a lens-fitted film unit.

[0002]

2. Description of the Related Art A film unit with a lens "Sharprun" (trade name) manufactured by the applicant of the present invention, which has a built-in film in advance, has a built-in film unit so that a photograph can be taken easily at any time. Sold and widely used. This film unit with lens
If this is roughly divided, for example, as shown in FIG.
0, a main body base 12, and a rear cover 13. A shutter device, a film winding mechanism, and the like are incorporated in the main body base 12. An unexposed film with a cartridge is housed on the back surface of the main body base 12 and sealed by a rear cover 13. Then, by assembling the front cover 10 to these front surfaces, the assembly of the lens-fitted film unit is completed.

In the method of fixing these plural parts,
There is also a method of firmly fixing using an ultrasonic welding machine, but in terms of cost and work efficiency, a fixing method using a removable claw stopper is often used. For example, in order to fix the rear cover 13 and the front cover 10 to each other via the main body base 12, the locking claws 16 provided on both sides of the rear cover 13 are provided with the locking holes 18 provided in the front cover 10. Is performed by engaging with.

By the way, from the background of resource reuse and the like, the reuse of the lens-fitted film unit is being actively promoted. This is because when a user takes a film unit with a lens that contains a film that has already been taken to a photofinishing shop, these are further collected at the photo lab, where the lid for taking out the film is opened and only the film is taken out. This is because the lens-fitted film unit after the film has been taken out after being subjected to film development and print processing has been taken out. Therefore, an attempt has been made by the manufacturer to collect and reuse the lens-fitted film unit after taking out the film.

In consideration of such a background, it is necessary to disassemble the recovered lens-fitted photo film unit for each component once and sort it by material. When disassembling it, the components must be uncoupled. Conventionally,
The uncoupling of each component is done manually. For example, when the engagement between the rear cover 16 and the front cover 10 is released, as shown in FIG. 3, a jig inserted through the locking hole 18 is used. This jig is in the shape of an elongated rod that fits into the locking hole 18. By inserting the rod 30, the locking claw 16 is bent in the direction of releasing the engagement between the locking claw 16 and the locking hole 18. These parts were separated from each other.

[0006]

However, in the jig 30 as described above, depending on the amount of insertion, the locking claw 18 is formed.
May be damaged or damaged. When the rear cover 13 is broken or damaged, it cannot be reused as it is. Therefore, the disassembling work must be performed while paying attention to the insertion amount of the jig 30 one by one, and the workability was extremely poor.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to provide a disassembling jig which can disassemble a lens-fitted film unit safely and efficiently.

[0008]

In order to achieve the above object, the locking claw is pressed by being inserted into the locking hole, and
A pressing portion whose length in the insertion direction is equal to or greater than the depth of the locking hole,
A regulating portion that regulates the insertion amount of the pressing portion is integrally provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. The jig 31 is integrally provided with a pressing portion 31a and a regulating portion 31b. The pressing portion 31a has a locking hole 18
The locking claw 16 is pressed by the insertion into. This pressing portion 31
The length a in the insertion direction is slightly longer than the depth b of the locking hole 18 in the insertion direction. The pressing portion 31a
The protrusion amount of is, for example, about 0.1 mm from the depth b of the locking hole 18.
The degree is good. Further, the cross-sectional shape of the pressing portion 31a may be rectangular or circular, and any shape that can be inserted into the locking hole 18 may be used.

In the restricting portion 31b, the pressing portion 31a has the locking hole 1
When it is inserted in 8, it contacts the outer wall of the front cover 10,
The insertion amount of the pressing portion 31a is regulated. This contact is performed when the pressing portion 31a presses the locking claw 16 to a position where the engagement between the locking claw 16 and the locking hole 18 is released. In addition,
The cross-sectional shape of the restriction portion 31a is preferably rectangular or circular because it is easy to hold by hand.

The operation of the lens-fitted film unit constructed as described above will be described. The photographer operates the roll-up knob and shutter button to finish shooting all the frames of the unexposed film, as well as the normal film unit with lens. Submit to a store. At a developing shop, a pull-top type lid 1 provided on the rear cover 13
Pry open 3a (see FIG. 2) with a screwdriver or the like, and take out the cartridge containing the photographed film. The photographer receives the print photograph, the negative film, and the like from the developing dealer, and the lens-equipped film unit from which the film is taken out is collected by the manufacturer.

The recovered lens-fitted film unit is first conveyed to the disassembling process. Of the disassembly process,
For example, in the process of removing the front cover 10 from the rear cover 13, the front cover 10 is directed upward and the rear cover 13 is removed.
Only the clamp is clamped on the pallet, and in this state, the jig 31 shown in FIG. 1 is inserted into the locking hole 18 from the pressing portion 31a in order and the front cover 10 is removed.

From the pressing portion 31a of the jig 31 to the locking hole 1
When it is inserted into 8, the pressing portion 31a comes into contact with the locking claw 16 in a state of being engaged with the locking hole 18. When the jig 31 is further inserted, the pressing portion 31a engages the locking claw 16 with the locking hole 18a.
It is pushed and bent in the direction in which the engagement with is released. After that, when the engagement between the locking claw 16 and the locking hole 18 is released, the restricting portion 31b comes into contact with the outer wall of the front cover 10, and the insertion of the pressing portion 31a is restricted.

In the case where such disassembling work is carried out automatically, the four jigs 31 are simultaneously inserted into the locking holes 18, and the front cover 10 is moved in the removing direction as it is, so that it can be easily removed. be able to. When such an automatic device is taken into consideration, a highly accurate positioning mechanism for regulating the insertion amount of the jig 31 is not required, and the load can be performed by detecting the load due to the contact of the regulating portion 31b. Can be planned.

In the above-mentioned embodiment, the unlocking of the front cover 10 and the rear cover 13 has been described. However, the jig of the present invention locks the other parts of the lens-fitted film unit. It can be used for release.

[0016]

As described above, according to the disassembling jig for the lens-fitted photo film unit of the present invention, since the regulating portion for regulating the insertion amount of the pressing portion is integrally provided, care should be taken to the insertion of the pressing portion. Since the disassembling work can be performed without doing so, the work efficiency can be improved and the quality of the disassembled parts is not deteriorated.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of essential parts showing a state in which components are removed using a jig or the like.

FIG. 2 is an exploded perspective view showing a configuration of a lens-fitted film unit described in the related art.

FIG. 3 is an enlarged cross-sectional view of an essential part showing a state where components are removed using a jig or the like described in the related art.

[Explanation of symbols]

 10 Front Cover 12 Main Body Base 13 Rear Cover 16 Locking Claw 18 Locking Hole 30, 31 Jig 31a Pressing Section 31b Restricting Section

Claims (1)

[Claims] 1. A disassembling jig for a lens-fitted film unit in which parts are combined by engagement of a locking hole and a locking claw that engages with an edge of the locking hole, and is inserted into the locking hole. By pressing the locking claw by means of, the pressing portion whose length in the insertion direction is equal to or greater than the depth of the locking hole, and the restriction portion for restricting the insertion amount of the pressing portion are integrally provided. A jig for disassembling the lens-fitted film unit.