JP3568170B2 - Film unit with lens and method of peeling exterior body - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-equipped film unit in which a belt-like exterior body is wound around an outer peripheral surface of a unit body in which a non-exposed photographic film is previously incorporated.
[0002]
[Prior art]
A film unit with a lens is commercially available from the present applicant so that photographing can be easily performed at low cost. A film unit with a lens is a unit that incorporates a simple photographing mechanism, has a built-in unexposed photo film in advance, and its surface is covered with an exterior body. It is generally widely used because it is easy to send it to a developing store even after shooting.
[0003]
Since the photographic film is loaded in the lens-fitted film unit during the manufacturing process, it is necessary to protect the photographic film from moisture from the time it is manufactured until the user actually uses it. For this reason, the lens-fitted film unit is individually sealed and packaged in a packaging bag having a moisture-proof function and shipped from the manufacturer, and the user opens the packaging bag when in use.
[0004]
Such a film unit with a lens has an advantage that it can be provided at a low price, and it is necessary to manufacture the film unit at the lowest possible cost. Is used. This paper box has six cover portions and a glue margin so as to wrap each surface of the box-shaped unit main body, and is assembled by folding one sheet of paper. Recently, a film unit with a lens using a band-shaped label as an outer package instead of a paper box has been known, for example, from Japanese Utility Model Application No. 3-56924. This film unit with a lens has a band-shaped label wound around the center of the unit body and glued, leaving both sides of the unit body exposed, compared to a unit that covers the entire surface of the unit body with a paper box. There is an advantage that a small image of the outer shape can be enhanced and assembly is simplified.
[0005]
Regardless of the type of the film unit with a lens, the cover unit of the package and the glue allowance are simply glued to each other, regardless of the type of the package. The appearance may be unsightly. In order to solve such a problem, a film unit with a lens in which a unit main body and an exterior body are directly adhered to each other to enhance mutual adhesion is known, for example, from Japanese Patent Application No. 2-57427. I have.
[0006]
[Problems to be solved by the invention]
For bonding of the exterior body, it is common to use a synthetic adhesive that dissolves a synthetic resin as a main agent in an organic solvent and solidifies the resin of the main agent by volatilizing the organic solvent, for example, a polyvinyl alcohol adhesive or the like. . However, as described above, since the lens-fitted film unit is hermetically sealed in a packaging bag, if the lens-fitted film unit is packed before the organic solvent is completely volatilized, the generated organic gas is diffused to the outside. Stagnation in the packaging bag. For this reason, the performance of the photographic film loaded in the film unit with a lens may be reduced by the influence of the generated organic gas.
[0007]
On the other hand, in order to save resources and reduce industrial waste, recycling of film units with lenses has been actively promoted. When the user brings the film unit with the lens containing the photographed film to a developing store, the film unit with the lens is further collected in a development shop, where the film is taken out, and the film is developed and printed. Is performed. The film unit with the lens after the photo film is taken out is collected by the manufacturer, and after the exterior body is peeled off from the unit body, the unit body is disassembled into parts. Those that can be reused as parts are supplied to the manufacturing process as they are, and those that cannot be used are used as raw materials. Further, the exterior body peeled off from the unit body is also re-melted and recycled as recycled paper.
[0008]
However, in the case of a film unit with a lens for directly bonding the above-mentioned unit body and the exterior body, when removing the exterior body from the unit body, a part of the adhesive part of the exterior body is peeled off with a specially shaped blade, and The peeled part must be picked and peeled from the unit body. In addition, since this peeling operation has to be performed individually by hand, it takes much time and effort and cannot be said to be efficient.
[0009]
The present invention has been made in order to solve such problems, and in addition to preventing the performance of the photographic film from deteriorating and improving the adhesion between the unit body and the exterior body, it is possible to remove the exterior body. It is an object of the present invention to provide a film unit with a lens and a method of peeling an exterior body, which can improve efficiency.
[0010]
[Means for Solving the Problems]
To achieve the above object, a lens-fitted photo film unit of the present invention, and the back surface and the outer body of the unit body, are bonded by an adhesive of an aqueous, the surface of the unit body covered by exterior body, the outer body , And a long groove is formed so that both ends protrude from both side edges of the exterior body. It is preferable that the bonding portion between the unit main body and the exterior body is formed in a belt shape along the winding direction of the exterior body. Further, it is preferable that the width of the groove is in the range of 0.5 mm to 5.0 mm and the depth is in the range of 0.5 mm to 2.0 mm.
[0011]
Further, in the method of peeling the exterior body according to claims 4 and 5 , after the cutting tool is brought into contact with the exterior body covering the elongated groove formed on the surface of the unit body and the exterior body is cut along the groove, While rotating the unit body around a straight line passing through the unit body and parallel to the cutting direction of the outer body, the cut end of the outer body on the distal end side with respect to the rotation direction of the unit body is picked from the unit body. It is something to peel off. The lens-equipped film unit is transported in the same direction as the direction in which the groove is formed, and a blade is disposed near the transport path so as to protrude into the groove, and the front surface of the blade is passed through the lens-equipped film unit. Therefore, it is preferable to cut the exterior body.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1 and 2 show the appearance of a film unit with a lens according to the present invention. The film unit with lens 10 includes a unit main body 11 in which a simple photographing mechanism and an unexposed photographic film are incorporated, and an outer label 30 wound around the central portion. The unit main body 11 is mainly made of plastic, and has a photographing lens 12, a finder objective window 13, a strobe light emitting section 14, and a strobe charging switch 15 on the front face, and a shutter button 16, a winding knob 17, and a counter window 18 on the top face. Is provided. A finder eyepiece window 19 is provided on the back surface of the unit body 11, and a long groove 20 is formed below the eyepiece window 19 so as to intersect the winding direction of the label 30 and protrude from both side edges of the label 30. Have been.
[0013]
FIG. 3 shows the label 30 developed from the rear side. The label 30 has a bottom cover 31, a rear cover 32, a top cover 33, a front cover 34, and a glue margin 35 in order to cover the center of the box-shaped unit body 11. It is made of a band-shaped paper, and is assembled into a cylindrical shape by folding the folding lines 36a to 36d shown by alternate long and short dash lines in the figure. Openings 37 a to 37 d for exposing the photographing lens 12, the finder objective window 13, the counter window 18, and the finder eyepiece window 19 provided on the unit main body 11 are provided at required portions of the label 30. The photographing operation can be performed with the unit 30 wound around the unit main body 11. Further, an adhesive layer 40 is formed by applying a water-based adhesive to a peripheral portion of the label 30 indicated by oblique lines in the figure. As the adhesive for forming the adhesive layer 40, any solvent may be used as long as it can bond paper and plastic with water as a solvent, and for example, an aqueous emulsion type acrylic resin adhesive may be used. .
[0014]
FIG. 4 shows a packaging bag in which a lens-fitted film unit is wrapped. The packaging bag 45 hermetically wraps the lens-fitted film unit 10 in a so-called pillow package form, and one protruding piece 45a is provided with a hole 46 for hanging a hanger. Also, the end of the protruding piece 45b is cut into a wavy shape so that the packaging bag 45 can be easily opened.
[0015]
FIG. 5 schematically shows a method of peeling the label 30. The lens-equipped film units 10 collected from the market are aligned on a conveyor 51 for conveyance, and are conveyed rightward in the figure. The lens-fitted film units 10 are arranged on the conveyor 51 such that the direction in which the grooves 20 of the unit main body 11 are formed is the same as the direction in which the lens-fitted film units 10 are conveyed. In the vicinity of the conveyor 51, a label cutting device 52 for cutting a part of the cylindrical label 30 wound around the unit main body 11, and a label peeling device 53 for peeling the label 30 from the unit main body 11 are arranged. .
[0016]
As shown in FIG. 6, in the label cutting device 52, the conveyance path of the film unit with lens 10 by the conveyor 51 is slightly curved. In the vicinity of the curved conveyor 51, a cutting blade 55 is provided. The cutting blade 55 is provided so as to slightly protrude into the transport path so as to enter the groove 20 formed in the unit main body 11, and has its blade surface 55 a on the upstream side in the transport direction of the lens-fitted film unit 10. It is arranged facing. As shown in FIG. 7, when the film unit with lens 10 reaches the front surface of the cutting blade 55, the cutting blade 55 enters the groove 20 of the unit body 11, and the label 30 is moved with the movement of the film unit 10 with lens. Be cut off.
[0017]
The film unit with lens 10 from which the label 30 has been cut is sent to the label peeling device 53. As shown in FIG. 8, a claw member 56 that enters the groove 20 of the unit main body 11, picks the cut end 30 a of the label 30, and pulls the label 30 in the direction of peeling off from the unit main body 11, , A pair of rotating shafts 57a and 57b arranged coaxially in a direction crossing the winding direction of the label 30, and a winding shaft 58 arranged in parallel with the rotating shafts 57a and 57b. The pair of rotating shafts 57a and 57b sandwich the film unit with lens 10 that has reached the label peeling position from both side surfaces thereof, and rotate the film unit with lens 10 counterclockwise in the figure while holding the film unit with lens 10 therebetween. The winding shaft 58 holds the end 30a of the label 30 peeled off from the unit main body 11 by the claw member 56, and winds the label 30 around the outer periphery while rotating in the opposite direction to the rotating shafts 57a and 57b.
[0018]
The width W of the groove 20 provided on the back surface of the unit main body 11 is preferably in the range of 0.5 mm to 5.0 mm, and the depth D is preferably 0.5 mm to 2.0 mm. If the width W of the groove 20 is smaller than 0.5 mm, it becomes difficult for the claw member 56 to enter the groove 20, and the end 30 a of the label 30 cannot be pinched. On the other hand, if the width W is larger than 5.0 mm, the proportion of the groove 20 on the back surface of the unit main body 11 becomes too large, which is not preferable in the appearance of the lens-fitted film unit 10. If the depth D of the groove 20 is smaller than 0.5 mm, there is almost no gap between the groove 20 and the label 30 placed thereon, so that the cutting of the label 30 becomes difficult. If the depth D is greater than 2.0 mm, it is difficult to form the groove 20 only on the surface without penetrating to the inside of the unit main body 11.
[0019]
In the assembling process of the film unit with lens 10, the unit main body 11 in which the photographing mechanism and the unexposed photographic film are incorporated is transferred to the label 30 attaching process. In the attaching step, first, the front cover portion 34 of the label 30 is placed on the front surface of the unit body 11, and the adhesive layer 40 formed on the back surface of the front cover portion 34 is pressed against the surface of the unit body 11. Then, the fold line 36 d adjacent to the front cover portion 34 is bent, and the adhesive margin 35 is adhered to the bottom surface of the unit body 11. Thereafter, the top cover portion 33 and the back cover portion 32 are successively pressed on the surface of the unit body 11, and finally, the bottom cover portion 31 is overlaid on the adhesive margin piece 35, whereby the lens-fitted film unit 10 is completed. In the film unit with lens 10, since the front surface of the unit main body 11 and the back surface of the label 30 are directly adhered, the unit main body 11 and the label 30 are in close contact with no gap, and the label 30 does not expand outward.
[0020]
The assembled film unit with lens 10 is individually sealed and stored in a packaging bag 45 and shipped to each retail store. Then, the film unit with lens 10 is hung and displayed at a store while being airtightly packaged by the packaging bag 45, or is stored in a vending machine.
[0021]
The film unit with lens 10 is kept sealed until the packaging bag 45 is opened by the photographer. During this time, the solvent of the adhesive bonding the unit body 11 and the label 30 may be vaporized, and the generated gas may stay in the packaging bag 45. However, since the adhesive uses water as a solvent, even if it is vaporized, it merely generates water vapor and does not generate a chemical gas. Accordingly, the photographic film incorporated in the lens-fitted film knit 10 is maintained in a good condition without any change in its characteristics.
[0022]
When performing photographing, the photographer tears open the packaging bag 45 from the corrugated portion formed at the end of the protruding piece 45b, and removes the film unit 10 with the lens. Then, the photographing is performed using the film unit 10 with the lens, and when the photographing of all the frames is completed, the photographer takes the entire film unit 10 with the lens to a developing dealer and requests the DPE. The photographed lens-equipped film unit 10 is further collected from a developing store to a developing laboratory, where the exposed photographic film is taken out of the unit main body 11. The photographic film taken out of the unit main body 11 is subjected to film development and print processing, and the completed print photograph is handed to the photographer through a processing dealer. On the other hand, the film unit with lens 10 from which the photographic film has been taken out is collected by a maker from a developer and sent to a disassembling process for reuse.
[0023]
In the disassembling step of the lens-fitted film unit 10, first, the label 30 is peeled off. The lens-fitted film units 10 are arranged on a conveyor 51 for conveyance with their directions aligned, and are sent into a label cutting device 52.
[0024]
In the label cutting device 52, the label 30 is cut while the film unit with lens 10 passes through the front surface of a cutting blade 55 provided to protrude in the transport path. At this time, since the conveying path of the conveyor 51 is slightly curved in front of the cutting blade 55, when the film unit 10 with the lens reaches the cutting blade 55, as shown in FIG. The angle θ between the moving direction of the unit 10 and the projecting direction of the cutting blade 55 is an acute angle. Further, since the groove 20 is formed to be longer than the side edge of the label 30, the tip of the cutting blade 55 enters the groove 20 without contacting the surface of the unit body 11. Thereafter, as shown in FIG. 1B, the label 30 is cut off as the film unit with lens 10 moves. Then, as shown in FIG. 4C, when the label 30 portion passes through the front surface of the cutting blade 55, the moving direction of the film unit with lens 10 and the direction of the blade surface 55a of the cutting blade 55 become substantially parallel. The cutting blade 55 retracts from the groove 20 without contacting the surface of the unit body 11.
[0025]
The film unit with lens 10 from which the label 30 has been cut is sent to the label peeling device 53. When the film unit with lens 10 reaches the label peeling position, the pair of rotating shafts 57a and 57b sandwich the film unit with lens 10 from both sides. Then, as shown in FIG. 9 (A), the claw member 56 enters the groove 20 of the unit main body 11, picks the cut end 30a of the label 30, and pulls this end 30a to hold it on the winding shaft 58. Let it. Thereafter, as shown in FIGS. 8B and 8C, the rotating shafts 57a and 57b rotate counterclockwise in the figure with the lens-fitted film unit 10 held therebetween, and at the same time, the winding shaft 58 rotates the rotating shaft 57a. , 57b. As a result, the unit main body 11 and the label 30 are pulled in opposite directions, so that the label 30 is peeled off from the unit main body 11 and wound around the winding shaft 58. At this time, since the adhesive layer 40 for bonding the front surface of the unit main body 11 and the back surface of the label 30 is formed in a band along the winding direction of the label 30, the label 30 Will be peeled off along. Therefore, the adhesive area at the moment when the unit main body 11 and the label 30 are peeled off is small, and the adhesive force is also small, so that the label 30 can be easily peeled off with a minimum necessary force. The label 30 peeled off from the unit body 11 is re-melted and recycled as recycled paper.
[0026]
The unit main body 11 from which the label 30 has been peeled is sent to a washing step, where it is washed with an alkaline solution, for example, water. At this time, since the adhesive used to bond the unit body 11 and the label 30 uses water as a solvent, the adhesive attached to the unit body 11 is dissolved in an alkaline solution, and It is completely removed without remaining. The unit body 11 after cleaning is disassembled into parts, and reusable parts are supplied to the manufacturing process and used as a part of the product. Those that cannot be used as parts as they are are pelletized and re-melted, and used as raw materials.
[0027]
In the above-described embodiment, the belt-shaped adhesive layer for adhering the front surface of the unit body and the back surface of the label is continuously formed. However, at least one or more adhesive layers are provided in each cover portion forming the label. May be formed intermittently. Although the adhesive is applied according to the shape of the adhesive layer, the adhesive may be applied to the entire surface of the label, and then “glue-killing” may be performed while leaving the part to be the adhesive layer. .
[0028]
【The invention's effect】
As described above, according to the present invention, since the adhesive using water as a solvent is used for bonding the exterior body, even if the film unit with the lens is kept sealed in the packaging bag for a long time, the packaging bag No chemical gas is generated inside the film unit, and the performance of the photographic film incorporated in the film unit with the lens can be maintained in a good state.
[0029]
In addition, since the front surface of the unit body and the back surface of the exterior body are directly adhered to each other so as to adhere to each other, it is possible to prevent the exterior body from bulging outward and making the external appearance of the lens-fitted film unit unsightly. Moreover, since the bonding surface between the unit body and the exterior body is formed in a belt shape extending in the winding direction of the exterior body, the unit body and the exterior body are separated along the direction in which the bonding surface is formed. become. Therefore, the bonding area at the moment when the unit main body and the exterior body are peeled off is small, and the adhesive strength is also small, so that the exterior body can be easily peeled off with a minimum necessary force.
[0030]
In addition, by forming a groove extending in a direction crossing the winding direction of the outer body on the surface of the unit body covered by the outer body, a narrow gap is formed between the outer body and the unit body. The outer body can be easily cut simply by hitting the blade from above the outer body covering the. Moreover, by forming the groove so as to protrude from both side edges of the exterior body, only the exterior body can be reliably cut to both side edges without damaging the surface of the unit body. Therefore, if the film unit with a lens is transported in the same direction as the direction in which the groove is formed, and if a blade for cutting the exterior body is arranged on the transport path so as to enter the groove, the front surface of the blade will be moved to the film unit with the lens. Since the exterior body is automatically cut only by passing through, the efficiency of the peeling operation of the exterior body can be improved.
[Brief description of the drawings]
FIG. 1 is a rear view of a film unit with a lens according to the present invention.
FIG. 2 is an external view of the film unit with a lens shown in FIG.
FIG. 3 is a development view of the label shown in FIG. 1;
FIG. 4 is an explanatory view showing a state in which the film unit with the lens of FIG. 1 is stored in a packaging bag.
FIG. 5 is an explanatory view showing a method of separating a unit main body and a label.
FIG. 6 is a schematic diagram showing a configuration of the label cutting device shown in FIG.
FIG. 7 is an explanatory diagram showing a cutting state of a label.
FIG. 8 is a schematic diagram showing the configuration of the label peeling device shown in FIG.
FIG. 9 is an explanatory diagram showing a peeled state of a label.
[Explanation of symbols]
Reference Signs List 10 Film unit with lens 11 Unit main body 20 Groove 30 Label 40 Adhesive layer 52 Label cutting device 53 Label peeling device 55 Cutting blades 57a, 57b Rotating shaft 58 Winding shaft

Claims (4)

A film unit with a lens including a photo film unexposed in advance, a unit body incorporating a simple photographing mechanism, and a band-shaped exterior body wound around the outer peripheral surface of the unit body.
The surface of the unit body and the back surface of the exterior body are adhered by an aqueous adhesive, and the surface of the unit body covered by the exterior body intersects with the winding direction of the exterior body, and from both side edges of the exterior body. A film unit with a lens, wherein a long groove is formed so that both ends protrude. The film unit with a lens according to claim 1 , wherein the groove has a width of 0.5 mm to 5.0 mm and a depth of 0.5 mm to 2.0 mm. A long strip formed by winding a band-shaped exterior body around the outer peripheral surface of a unit body incorporating a simple photographing mechanism, and extending on the surface of the unit body covered by the exterior body so as to intersect with the winding direction of the exterior body. In the method of peeling the exterior body of the lens-fitted film unit having the groove formed therein,
While the blade is in contact with the exterior body covering the groove, and after cutting the exterior body along the groove, while passing through the unit main body and rotating the unit main body around a straight line parallel to the cutting direction of the exterior body, A method of peeling off the exterior body of a film unit with a lens, wherein a cut end of the exterior body on the tip side with respect to the rotation direction of the unit body is picked up and peeled off from the unit body. Conveying the film unit with the lens in the same direction as the direction in which the groove is formed, disposing the blade so as to protrude into the groove near the conveyance path, and passing the front surface of the blade through the film unit with the lens. 4. The method according to claim 3 , wherein the exterior body is cut by the method.

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