JP3135092B2 - Disassembly method of 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 for disassembling a film unit with a lens, and more particularly to a method for automatically performing a disassembling operation at the time of recycling.

[0002]

2. Description of the Related Art A film unit with a lens (hereinafter, referred to as a "film unit") has been proposed in Japanese Patent Publication No. 2-32615 and the like, which is described in International Standard ISO 1007-1979. A prescribed 135 type film with a patrone is pre-loaded at the factory. The film unit includes a main body in which a film with a patrone is loaded, a front cover mounted on the front of the main body, and a rear cover mounted on the back of the main body. A mechanism, a lens, a strobe device, and the like are incorporated. Such a film unit is submitted to a photo lab as it is when all frames of the negative film of the film with a patrone are completed. At the photo lab, the cartridge containing the exposed film is taken out and subjected to processing such as development and printing using the current development processing system, and the user is returned with a print photograph and a film negative.

[0003] By the way, industrial products are recycled for environmental protection and reduction of industrial waste. Generally, this recycling includes the conversion of parts into raw materials and the reuse of parts as they are for new industrial parts. Regarding film units, in the early stages of sales, empty film units were disposed of, but recently,
The main body, front cover, and rear cover are melted to form resin pellets. Further, a strobe device unitized by mounting circuit elements, a flash discharge tube, a synchro switch, and the like on a printed board is reused by loading a new battery.

In order to increase the number of reusable parts, a film unit in which a counter mechanism and a shutter mechanism are separated from a main body as an exposure unit is disclosed in Japanese Patent Application No. 3-200.
No. 050. In this film unit, the exposure unit (counter mechanism, shutter mechanism), lens, and strobe device can be easily removed without damage or damage, so that they can be reused. In order to easily take out such a reusable part, it is desirable to connect the parts of the film unit with each other by detachable locking means. As the locking means, Japanese Patent Application No. Hei 3-167741 and Japanese Patent Application No. Hei 3-33215 are disclosed.
As proposed in No. 2, etc., an elastic locking claw provided on one component and a locking portion, a locking hole or a locking provided on the other component and locked by the locking claw. Coupled by engagement with the pawl.

[0005]

At present, reduction of recycling costs has been proposed. When investigating the breakdown of costs, we found that most were personnel costs. The most difficult task in recycling is the task of uncoupling the locking means, which was done manually to prevent re-use parts from being damaged or damaged. . Japanese Patent Application Nos. 3-332156 and 3-332156 have changed the shape of the locking claw in order to allow a reusable part to be safely taken out by inserting a dedicated jig or the like without being damaged or damaged. 4-89
No. 029, Japanese Patent Application No. 4-95488, Japanese Patent Application No. 4-107
No. 034 and Japanese Patent Application Laid-Open No. 4-110225, etc. However, even if such a jig is used, the cost of personnel has not been reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above background, and has as its object to provide a disassembling method of a lens-equipped film unit for automatically disassembling and disassembling parts connected by a locking means. Aim.

[0007]

According to a first aspect of the present invention, there is provided a method for disassembling a film unit with a lens, the method comprising: transporting the film unit with a lens to a disassembly position; While such flexing the locking pawl to release the engagement between et locked portion by inserting each a plurality of release pawl to the engaging portion between the engaging pawl and the engaged portion, further pre
At least one of the plurality of release claws facing each other;
Move one of the pair of release claws toward the other
After holding one of the parts , the pair of release claws
Is moved in a direction different from the insertion direction to separate one part from the other part.

In the method for disassembling the film unit with the lens according to the second aspect, the film unit with the lens is transported to the disassembly position and positioned in a fixed posture, and then the engaging portion between the locking claw and the locked portion is engaged. releasing the pawl to move to deflect the locking pawl to release the engagement between the engaged portion, the holding means one of the parts of the two parts allowed to the release pawl to this state After holding, the holding means and the release claw are moved in a direction different from the moving direction so that the one part is moved to the other part.
It is intended to be separated from the product .

[0009]

[0010]

FIG. 2 shows the appearance of a film unit according to the present invention. The film unit 2 is composed of a unit main body 3 having a photographing mechanism and an outer case 4 for housing the same. Photographing is performed while the film unit 2 is kept in the outer case 4. The outer case 4 is used to make the appearance of the film unit 2 beautiful, and a paper box or a plastic sheet having an outer surface printed thereon is used. The outer case 4 is provided with a photographic lens 5, a finder window 6, a release button 7, a number-of-photographs display plate 8, a winding knob 9, and a hole for exposing a light emitting unit 10. The photographing is performed while pressing the cut portion 11 of No. 4.

In FIG. 3 and FIG.
Is a main body 13 into which a film with a patrone (see FIG. 4) 12 is loaded. The rear cover 1 is attached to the back of the main body 13 and stores the film between the main body 13 in a light-tight manner.
4, a front cover 15, which is attached in front of the main body 13, an exposure unit 16, and a strobe device 17.
The exposure unit 16 includes a counter mechanism, a shutter mechanism, a film wrapping mechanism, the lens 5, and the like. The lens 5 is sandwiched between the front cover 15 and the aperture 16a of the exposure unit 16.

The strobe device 17 is a unit formed by mounting circuit elements, a flash discharge tube, a synchro switch 19, a battery 20, electrode plates 21 and 22 for the battery 20, a main capacitor 23, etc. on a printed circuit board 18. is there. The electrode plate 21 is an electrode for an anode, and is provided with an opening 21 a into which a projection 20 a on the anode of the battery 20 is fitted. At the time of flash photography, the contact piece 25 is cut through the notch 24 of the front cover 15 by pressing the notch 11.
Is pressed, and the electric charge supplied from the battery 20 is accumulated in the main capacitor 23. This electric charge is discharged in the flash discharge tube by operating the synchro switch 19 in conjunction with the shutter raise. The contact piece 25 is sandwiched between the concave portion 26 of the main body 13 and the front cover 15.

The main body 13 is provided with a patrone chamber 27 in which a patrone is loaded, and an unexposed film storage chamber 28 which is drawn out of the patrone and stored in a roll shape. These bottoms are open and the rear cover 1
4 are closed by pull-top type bottom lids 29 and 30. The bottom cover 30 of the unexposed film storage room 28 is a cover for inserting a jig or the like for winding the unexposed film into a roll from the patrone when loading the film, and the bottom cover 29 of the patrone room 27 is It is a lid for taking out the patrone containing the film after shooting.

An exposure unit 16 is provided in the main body 13.
In this case, after the positioning pins 33 and 34 provided on the diagonal line of the exposure opening 32 are positioned, the locking claws 3 provided on both sides of the main body 13 with the exposure opening 32 interposed therebetween.
5,36. When the strobe device 17 is incorporated in the main body 13, the strobe device 17 is positioned by the positioning pins 37 and 38 provided on the main body 13 and the exposure unit 16, and then connected by the locking claw 39 provided on the main body 13. . Further, when the front cover 15 is incorporated in the main body 13, the guide walls 40 provided on both side surfaces of the main body 13 are provided.
And the main body 13 is positioned by the positioning pins 41.
Are connected by locking claws 42, 43, 44, 45. Assembling directions of the exposure unit 16, the strobe device 17, and the front cover 15 are as follows.
It is inserted from the front of the body 13.

The front cover 15 has a guide wall 47 and a positioning hole 48 which are fitted to the guide wall 40 and the positioning pin 41 of the main body 13, and a locking claw which is engaged with the locking claws 42 and 43 of the main body 13. 49, 50 and locking claws 44,
Engagement holes 51 and 52 are provided for engagement with the hole 45.
The locking claws 49 and 50 are formed so that the hook surfaces for hooking the locking claws 42 and 43 are located at the edges of the openings 53 and 54 at positions facing the openings 53 and 54. . In the exposure unit 16, positioning holes 55, 56 that fit into the positioning pins 33, 34 of the main body 13 are provided.
And locking portions 57 and 58 to which the locking claws 35 and 36 are locked. Further, the strobe device 17 has a locking hole 59 for engaging with the locking claw 39, a positioning hole 60 for fitting the positioning pin 38 of the exposure unit 16, and a positioning opening for fitting the positioning pin 37 of the main body 13. 61
Are provided. The positioning opening 61 is also used as an opening for penetrating the locking claw 42 of the main body 13.

An apparatus for disassembling such a film unit 2 will be described. At the factory, the film unit 2
Is collected from the developing station and transported to a decomposition step. In this disassembling step, the film unit 2 is automatically conveyed to the first to sixth steps, and the outer case 4, the front cover 15, the battery 20,
The strobe device 17 and the exposure unit 16 are sequentially removed. The transport between the processes uses an assembly pallet on which the film unit 2 is placed. When the disassembly step is configured in a linear manner, for example, the assembled pallet is transported by a roller chain conveyor, a belt conveyor, or the like. When the disassembling step is configured as a rotary type, the assembling pallets are arranged on the index rotary table or the like at a constant pitch along the circumferential direction thereof, and are conveyed by rotating the index rotary table.

The assembling pallet has the film unit 2 fixed thereto with its front cover 15 facing upward.
Positioning is performed with high accuracy by positioning means provided in each step. In the first step, an automatic device for removing the outer case 4 from the film unit 2 is provided. When the outer case 4 is a paper box, the automatic device tears it off with a cutter or the like.
Here, the unit body 3 from which the outer case 4 has been removed is transported to the second step.

In the second step, as shown in FIGS. 1 and 5, an automatic device for removing the front cover 15 from the main body 13 is provided. This automatic device releases the connection between the locking claws 42 and 43 of the main body 13 and the locking claws 49 and 50 of the front cover, and also includes a release holding mechanism 66 that holds the front cover 15 as it is, It comprises release mechanisms 67, 68 for releasing the engagement between the locking claws 44, 45 and the locking holes 51, 52 of the front cover, and these are operated synchronously.

The release holding mechanism 66 has two release claws 69, 70 arranged at the same interval as the engaging portion between the locking claws 42, 43 and the locking claws 49, 50; 7
Two holders 71, 7 for holding the vertical direction 0
2, holding members 75 and 76 having shafts 73 and 74 for rotatably holding the holders 71 and 72, and a straight moving cylinder (not shown) for moving these holding members 75 and 76 in the vertical direction. And two holding members 7
And a rotation cylinder 77 for evenly rotating the rotation rollers 5 and 76. In addition, the release mechanisms 67 and 68 move the release claws 79 and 80 linearly by the respective cylinders (not shown).

In the third step, as shown in FIGS. 6 and 7, a device for automatically taking out the battery 20 of the strobe device 17 is provided. This device is provided with an opening 2 of the electrode plate 21.
A release claw 81 for releasing the engagement between the battery 1 and the convex portion 20a of the battery 20, a removal plate 82 for removing the battery 20 to the outside from between the two electrode plates 21 and 22, and a release claw 81 The take-out plate 82 includes a straight-moving cylinder 83 that moves the take-out plate 82 in the direction of arrow A shown in the drawing, and a turning cylinder 85 that turns the take-out plate 82 about a shaft 84.

In the fourth step, as shown in FIG. 8, an automatic discharging device for discharging the electric charge of the main capacitor 23 of the strobe device 17 is provided. This automatic discharge device
Discharge resistor 8 connected to two discharge terminals 87 and 88
9 is moved vertically by a cylinder or the like (not shown), and the two discharge terminals 87 and 88 are brought into contact with both terminals 23a and 23b of the main capacitor 23 to discharge. Both terminals 23 a and 23 b of the main capacitor 23 are soldered to circuit elements on the upper surface of the printed circuit board 18.

In the fifth step, as shown in FIG. 9, an automatic device for removing the strobe device 17 from the main body 13 is provided. This device includes a release mechanism 92 for releasing the engagement between the locking claw 39 of the main body 13 and the locking hole 59 of the strobe device 17.
And a holding mechanism 93 that holds the printed circuit board 18 of the strobe device 17 from both sides and lifts up the printed circuit board 18 while the disengaging operation of the disengaging mechanism 92 is being performed. The release mechanism 92 moves the release claw 94 in the direction of arrow B shown in FIG. The holding mechanism 93 includes a robot hand 95 and a cylinder 96 that holds the robot hand 95 movably in the vertical direction.

In the sixth step, as shown in FIG. 10, an automatic device for removing the exposure unit 16 from the main body 13 is provided. This automatic device includes two release claws 98, 99 arranged at the same interval as the engagement portion between the engagement claws 35, 36 and the engagement portions 57, 58, and these release claws 98, 9
9, two holders 100 for holding vertically along
101, and a holding member 1 having two shafts 102, 103 for rotatably holding these holders 100, 101.
04, 105, and a rectilinear cylinder 106 for moving these holding members 104, 105 in the vertical direction;
A release and holding mechanism 109 includes two rotation cylinders 107 and 108 for rotating the two holders 100 and 101.

The operation of the above disassembly device will be described. In the factory, the film unit 2 is collected from the developing laboratory and transported to the disassembling process. In the first step, the film unit 2
Remove the outer case 4 from. The unit body 3 from which the outer case 4 has been removed is sent to the second step. If the removed outer case 4 is, for example, a paper box, it is recycled as used paper.

When the assembly pallet is transported in the second step,
As shown in FIGS. 1 and 5, the release holding mechanism 66 and the release mechanisms 67 and 68 operate simultaneously. Release mechanism 67, 68
The front cover while bending each engagement claw 44 and 45 by insertion into engagement with the locking claw 44, 45 and the latch hole 51 of each release pawl 79, 80 by operation of the cylinder The connection with the locking holes 51 and 52 is released. In addition, the release holding mechanism 66 operates the straight-moving cylinder to activate the two release claws 6.
The 9,70 through openings 53, 54 of the front cover 15 is inserted in the engaging portion between the engaging claws 42, 43 and the locking claws 49, 50. As a result, the locking claws 42 and 43 flex outwardly with each other, and the engagement between the locking claws 42 and 43 of the main body 13 and the locking claws 49 and 50 of the front cover 15 is released. In addition,
As another method of uncoupling the releasing claws 79, 80, after moving straight, the releasing claws 79, 80 are moved in parallel in a direction opposite to the bending direction of the locking claws 44, 45 to be coupled. The cancellation may be performed. Further, as another example, the locking claws 42 and 4 of the main body 13 are moved linearly.
The connection may be released by flexing the locking claws 49 and 50 of the front cover 15 with each other. Also, the release claw
79, 80, 69, 70 can be inserted into the
It can take any arcuate path.

After moving the release claws 79 and 80 linearly, the release holding mechanism 66 operates the rotation cylinder 77. The operation of the rotation cylinder 77 causes the holders 71 and 72 to rotate about the shafts 73 and 74, and
9 and 70 are rotated in the direction opposite to the bending direction of the locking claws 42 and 43. As a result, the front cover 15 is held in a state of being slightly lifted up by the two release claws 69 and 70. At this time, the release mechanisms 67, 80 are provided so that the front cover 15 does not come into contact with the release claws 79, 80.
68 operates the cylinder to retract the release claws 79, 80 to their original positions. Thereafter, the release / holding mechanism 66 operates the straight-moving cylinder to move the release claws 69 and 70 holding the front cover 15 in a direction opposite to the insertion direction. After removing the front cover 15, the lens 5,
And the contact piece 25 are removed. The release claws 69, 7
0 is rotated about the shafts 73 and 74, and the release claws 69 and 70 are rotated.
Is rotated in the direction opposite to the bending direction of the locking claws 42 and 43.
It was released using a known linear motion mechanism.
Set the claws 69, 70 in the opposite direction to the bending directions of the locking claws 42, 43.
May be moved directly.

When the assembling pallet is transported in the third step, as shown in FIG. 6, the linear movement cylinder 83 is operated to move the release claw 81 and the take-out plate 82 together with the arrow A shown in FIG.
Move in the direction. After the movement is completed, the release claw 81 is inserted between the electrode plate 21 and the protrusion 20a of the battery 20, and the opening 21
a is released from engagement with the projection 20a. Also take out plate 82
Is located above the battery 20, as shown in FIG. Then, by the operation of the rotation cylinder 85,
The take-out plate 82 rotates about the shaft 84. As a result, the battery 20 is taken out onto the tray 110 arranged on the assembly pallet.

When the assembly pallet is conveyed in the fourth step, as shown in FIG. 8, the cylinder operates to move the discharge resistor 89 downward. After the movement is completed, discharge terminal 8
7, 88 are both terminals 23a, 2 of the main capacitor 23;
Contact 3b. This contact time depends on the main capacitor 2
When the capacity of No. 3 is 180 NF and the discharge resistor 89 is 200 ΩJ, about 0.5 second is preferable. Thereby, the strobe device 17 to be removed later can be handled safely.

When the assembly pallet is conveyed in the fifth step, first, as shown in FIG. 9, the cylinder of the release mechanism 92 is operated to move the release claw 94 in the direction of arrow B shown in FIG. After the movement is completed, the release claw 94 is in a state where the locking claw 39 of the main body 13 is bent. Next, the cylinder 96 of the holding mechanism 93 is operated, and the robot hand 95 at the open position is moved down straight. After the descent is completed, the robot hand 95 is located on both sides of the printed circuit board 18. Thereafter, the robot hand 95 is operated to the closed position to sandwich the printed circuit board 18 from both sides, and the cylinder 96 is operated to slightly lift the printed circuit board 18 upward. When slightly raised, the engagement between the locking claw 39 and the locking hole 59 is released, so that the cylinder of the release mechanism 92 is operated to retract the release claw 94 to the original position. Thereafter, the robot hand 95 can lift and separate the strobe device 17 without hitting the release claw 94. The removed strobe device 17 is transported to the inspection process.

When the assembly pallet is conveyed in the sixth step, as shown in FIG. 10, the rectilinear cylinder is operated, and the two releasing claws 98, 99 are engaged with the engaging claws 35, 36 and the engaging portions 57, 57. 58 is inserted straight into the engaging portion. After the movement is completed, the release claws 98 and 99 are fixed to the locking claws 35 and
36 is bent to release the connection with the locking portions 57 and 58 of the exposure unit. After that, the rotating cylinders 107, 1
08, the holders 100 and 101 are
It rotates around 2,103. With this rotation, the release claw 9
8, 99 rotate in the direction opposite to the direction in which the locking claws 35, 36 are bent. As a result, the exposure unit is held in a state of being slightly lifted up by the two release claws 98 and 99. After that, the rectilinear cylinder is actuated, and the release claw 9 holding the exposure unit 16 is held.
8,99 is moved in the direction opposite to the insertion direction.

The removed exposure unit 16 is transported to an inspection step, and after being subjected to a function inspection, is sent to a reassembly step. The main body 13 with which the remaining rear cover 14 is engaged is
Since the patrone containing the exposed film is taken out at the developing station, it is sent to the resin recycling step as it is without any mixture of different materials. Therefore, the locking claws that are bent by the release claws of each device are all formed in the main body 13 so as to be deformable, and may be damaged or damaged. Further, the front cover 15, the contact piece 25, and the lens 5, which have been removed earlier, are also sent to the resin recycling process and the metal recycling process for each material.

In the above-described embodiment, the connection between the exposure unit 16 and the main body 13 is made by the locking claws 35, 36 and the locking portions 57, 58.
However, in order to enhance the light shielding property, a part of the connecting portion may be firmly welded by an ultrasonic welding machine in addition to the engaging means. In this case, the exposure unit 16 and the main body 13
And a release mechanism for releasing the connection between the locking claw of the main body 13 and the locking part of the exposure unit, and the release mechanism firmly holds the exposure unit after the release mechanism releases the lock. A device including a holding mechanism is required.

The discharging of the main capacitor 20 may be performed in a step of removing the strobe device 17. In this case, it is preferable to remove the strobe device 17 after discharging.

[0034]

As described above in detail, according to the first aspect of the present invention, the detachable component is held by the release claw for releasing the connection between the locking claw and the locked portion. Therefore, the size and cost can be improved. According to the second aspect of the present invention, a release claw for releasing the engagement between the locking claw and the locked portion, and a holding for holding the detached component whose connection has been released by the release claw. Since the means and the means are separately configured, the parts can be held with a strong holding force, and can be easily disassembled, for example, even in the case of an ultrasonic welded connection in addition to the locking means. to become.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an apparatus for removing a front cover from a main body.

FIG. 2 is a perspective view showing an appearance of a film unit with a lens.

FIG. 3 is an exploded perspective view of a unit main body.

FIG. 4 is a sectional view of a unit body.

FIG. 5 is a perspective view schematically showing an apparatus for removing a front cover from a main body.

FIG. 6 is a perspective view schematically showing an apparatus for removing a battery.

FIG. 7 is an explanatory view schematically showing an apparatus for removing a battery.

FIG. 8 is a perspective view schematically showing a device for discharging a main capacitor of the strobe device.

FIG. 9 is a perspective view schematically showing a device for detaching the strobe device from the main body.

FIG. 10 is an explanatory view schematically showing an apparatus for removing an exposure unit from a main body.

[Explanation of symbols]

 2 Film unit with lens 3 Unit body 13 Main body 14 Rear cover 15 Front cover 16 Exposure unit 17 Strobe device 66, 109 Release holding mechanism 67, 68, 92, Release mechanism 93 Holding mechanism

Continuation of the front page (56) References JP-A-4-347827 (JP, A) JP-A-4-306626 (JP, A) JP-A-3-86334 (JP, U) JP-A-57-106286 (JP) , U) Fully open 58-129682 (JP, U) Fully open 61-166574 (JP, U) Really open 63-2823 (JP, U) Fully open 63-49962 (JP, U)

Claims (2)

(57) [Claims] 1. A multiple locking claws to any of the 2 components of the film unit, said the other
Formed integrally with engaging portion corresponding to the engaging pawl in said locking claw and the locked portion and the decomposition process of the lens-fitted photo film unit in which the 2 parts are coupled to each other by the engagement of the lens with After transporting the film unit to the disassembly position and positioning the film unit in a fixed posture, a plurality of release claws are inserted into the engagement portion between the locking claw and the locked portion to bend the locking claw. > long et al to release the engagement between the engaged portion, further wherein the plurality of solutions
At least one pair of releasing claws facing each other in the removing nails
Of one of the two parts
After holding one part , insert the pair of release claws
A method of disassembling a film unit with a lens , comprising moving one part from another part by moving in a direction different from the direction . Claws in either of the two parts constituting the 2. A lens-fitted photo film unit, formed integrally with the engaged portion on the other, by the engagement between the locking claw and the engaging portion In the disassembling method of the lens-fitted film unit in which the two parts are connected to each other, the lens-fitted film unit is transported to the disassembly position and positioned in a fixed posture, and then the engaging portion between the locking claw and the locked portion in the release pawl to deflect the locking pawl to move to release the engagement between the engaged portion, one part of the holding of one of the two parts allowed to the release pawl to the state <br After holding the holding means and the release claw,
Moving in a direction different from the
A method for disassembling a film unit with a lens, wherein the film unit is separated from parts .