JP2005099201A - Lens-fitted photo film unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens-fitted photo film unit capable of preventing production of an irregular film repacked unit. <P>SOLUTION: In the lens-fitted photo film unit 2, a main body 3 of the unit comprising a film roll chamber 22 in which a rolled photographic film 31 is housed and a cartridge chamber 23 in which a film cartridge 30 is housed has a rear cover 18 for sealing off the cartridge chamber 23 light-tightly. A stripping action part 16 which strips a pressure sensitive adhesive tape is formed on an outer surface of the rear cover 18, accordingly fastening of the rear cover 18 opened in irregular film repacking with a tape is prevented. It is preferable that a rear cover 17 for sealing off the film roll chamber 22 light-tightly is further disposed and the stripping action part 16 is formed also on an outer surface of the rear cover 17, and it is preferable that the stripping action part 16 is formed also on outer surface parts of the main body 3 of the unit around the rear covers 17, 18. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lens-fitted photo film unit that can prevent production of an illegally refilled film.

  An unexposed photographic film is loaded in advance, and a lens unit with a lens that can be used once and can be photographed on the spot is widely used. In general, a lens-fitted photo film unit has a cartridge body for storing a film cartridge (a cartridge or an APS cartridge) in a unit body incorporating a simple photographing mechanism including a fixed focus lens and a one-speed shutter, and an unexposed film drawn from the film cartridge. There is provided a film roll chamber for storing a film roll in which the photographic film is rolled. The lens-equipped film unit can shoot only with the film winding and shutter operations, and after filming is complete, it can be requested to develop and print the film just by bringing it to the development station. You can enjoy photography.

  In recent years, a product in which an unused photographic film is reloaded into a used film unit with a lens collected at a processing laboratory is on the market. This refilled film is obtained by refilling a used photographic film into a used film unit with a lens by a contractor different from the manufacturer. The refilled film is manufactured at an extremely low cost compared to the regular product provided by the manufacturer, and the difference in the selling price due to this is a cause that hinders the distribution of the regular product.

  In view of this, manufacturers of the manufacturers are studying various devices for preventing the production of the irregularly refilled film. For example, the film panforation used for the film feeding is changed in size so as to prevent the illegal film refilling by changing the standard from the standard (for example, see Patent Document 1), dedicated Are known (for example, see Patent Document 2), and those in which a commercial product cannot be used by changing the shape of the battery (for example, see Patent Document 3). However, the manufacture and use of such non-standard parts by the manufacturer leads to a significant cost increase.

  Therefore, when taking out a film cartridge containing a photographed film, it is possible to prevent unauthorized refilling of the film without changing the standard of the photo film, film cartridge, battery, etc. A device utilizing the fact that the locking portion for fixing the bottom lid or the like is destroyed so as to keep it light-tight is known (for example, see Patent Document 4 or 5).

JP 09-113958 A Japanese Patent Laid-Open No. 10-171070 JP 2001-13634 A JP 08-2111568 A JP 11-149141 A

  However, even if the locking portion for fixing the bottom cover is broken when the film cartridge is taken out in this way, the lens unit with lens can be easily repaired by pressing the bottom cover with an adhesive tape or the like. be able to. This cannot effectively prevent the manufacture of an irregular film refill.

  The present invention has been made in view of the above problems, and provides a film unit with a lens that can effectively prevent the manufacture of an irregular film refill using a commercially available photographic film. Objective.

  The lens-fitted photo film unit of the present invention has a cartridge chamber seal in which a unit body having a film roll chamber for storing a roll-shaped photographic film and a cartridge chamber for storing a film cartridge is sealed light tightly. In the lens-fitted photo film unit provided with the member, a peeling action part for peeling off the adhesive tape is formed on the outer surface of the cartridge chamber sealing member.

  In addition, it is preferable that the said peeling operation | movement part is formed in the peripheral part of the said cartridge chamber sealing member at least among the outer surfaces of the said unit main body.

  The unit main body further includes a film roll chamber sealing member for light-tightly sealing the film roll chamber, and the peeling action portion is formed on an outer surface of the film roll chamber sealing member. It is preferable.

  Moreover, it is preferable that the said peeling action part is formed in the peripheral part of the said film roll chamber sealing member among the outer surfaces of the said unit main body.

  Further, when the cartridge chamber sealing member is sealed, the other end of the cartridge chamber sealing member is anchored in the cartridge chamber so as to be inclined with respect to the surface of the unit body to which the one end is bonded. It is preferable.

  Further, a locking claw is provided at the other end of the cartridge chamber sealing member, and a locking hole engaging with the locking claw is provided in the cartridge chamber, so that the sealed cartridge chamber is opened. Moreover, it is preferable that the locking claw engaged with the locking hole is broken.

  The film roll chamber sealing member has an other end engaged with the film roll chamber so that the one end of the film roll chamber sealing member is inclined with respect to the surface of the unit body to which the film roll chamber is bonded. Preferably it is worn.

  A locking claw is provided on the other end of the film roll chamber sealing member, and a locking hole is provided in the film roll chamber for engaging with the locking claw, thereby opening the sealed film roll chamber. At this time, it is preferable that the locking claw engaged with the locking hole is broken.

  It is preferable that the peeling action part is formed by applying a peeling material having a peeling action.

  The peeling action part is preferably formed of a material having a peeling action.

  The release material preferably has silicon as a main component.

  The material is preferably composed mainly of silicon.

  The unit main body is preferably provided with a strap holder that enables attachment of a strap.

  The lens-fitted photo film unit of the present invention has a cartridge chamber seal in which a unit body having a film roll chamber for storing a roll-shaped photographic film and a cartridge chamber for storing a film cartridge is sealed light tightly. In the film unit with a lens provided with a member, a peeling action part for peeling off the adhesive tape is formed on the outer surface of the cartridge chamber sealing member. It cannot be fixed with an adhesive tape, and irregular film refilling can be effectively prevented.

  The unit main body further includes a film roll chamber sealing member for light-tightly sealing the film roll chamber, and the peeling action portion is formed on the outer surface of the film roll chamber sealing member. The opened film roll chamber sealing member cannot be fixed with the adhesive tape, and the irregular film refilling can be more effectively prevented.

  When the cartridge chamber sealing member is sealed, the other end of the cartridge chamber sealing member is attached to the cartridge chamber so as to be inclined with respect to the surface of the unit main body to which the one end is bonded. Even if the unit main body is covered with the paper box after the cartridge chamber sealing member is opened, a gap is generated between the paper box and the cartridge chamber sealing member, and the cartridge chamber sealing member opens in the paper box. Thereby, since the reliability with respect to the light tightness is significantly lowered, it is possible to more effectively prevent the irregular film refilling.

  When the other end of the cartridge chamber sealing member is provided with a locking claw, a locking hole is provided in the cartridge chamber for engaging with the locking claw, and when the sealed cartridge chamber is opened, Since the locking claw engaged with the locking hole is destroyed, the portion that is destroyed when the cartridge chamber sealing member is opened is minimized, which is detrimental to the reuse of the unit body at the manufacturer. Not give.

  When the film roll chamber is sealed, the other end of the film roll chamber sealing member is attached to the film roll chamber so as to be inclined with respect to the surface of the unit main body to which the film roll chamber is bonded. Therefore, even if the unit body is covered with a paper box after the film roll chamber sealing member is opened, a gap is generated between the paper box and the film roll chamber sealing member, and the film roll chamber is sealed in the paper box. The member opens. Thereby, since the reliability with respect to the light tightness is significantly lowered, it is possible to more effectively prevent the irregular film refilling.

  A locking claw is provided on the other end of the film roll chamber sealing member, and a locking hole is provided in the film roll chamber for engaging with the locking claw, thereby opening the sealed film roll chamber. At this time, since the locking claw engaged with the locking hole is broken, the portion that is broken when the film roll chamber sealing member is opened is suppressed to a minimum, and the unit body at the manufacturer Does not adversely affect reuse.

  The unit body is equipped with a strap holder that allows the strap to be attached, so if the photographer has a peeling action part with low grip, the fall accident may occur by passing the hand through the strap. Is prevented.

  In FIG. 1, a lens-fitted photo film unit 2 includes a unit main body 3 surrounded by a front cover 3a and a rear cover 3b formed of an opaque resin, and a paper-made outer package covering the unit main body 3 in a band shape. 4. Although not shown, the unit main body 3 incorporates various photographing mechanisms such as a shutter mechanism, a film winding mechanism, and a strobe device.

  On the front surface of the unit main body 3, a photographing lens 5, a finder objective window 6, a strobe light emitting unit 7, and a charging operation knob 8 that is operated in advance during strobe photography are provided. On the upper surface of the unit main body 3, a release button 9, a counter window 10 for displaying the remaining number of frames that can be photographed, and a pilot lamp 11 for notifying that preparation for flash emission has been completed are provided. On the back surface of the unit main body 3, a part of the winding knob 12 that is rotated every time one frame is shot is exposed. A strap holder 14 for connecting an annular strap 13 is provided on the left side surface of the unit body 3.

  On the release button 9 side of the front cover 3a, a grip portion 15 protruding forward in a semi-cylindrical shape is formed. The photographer normally holds the grip portion 15 with his / her hand passing through the annular portion of the strap 13 and presses the release button 9.

  On a part of the outer surface of the unit main body 3 (a region where a dot pattern is given in the figure), a peeling action portion 16 for peeling an adhesive tape or the like is formed. The peeling action portion 16 is formed by applying a peeling material having a peeling action (for example, a material mainly composed of silicon) to the outer surface portion of the unit body 3, so that an adhesive tape or the like is naturally applied. To peel off. More specifically, a silicon-based or fluorine-based mold release agent used for plastic injection molding manufactured by Sumi Lubricant Co., Ltd. can be used as the release material. In addition, you may form this peeling action part 16 with the raw material (for example, the thing which has silicon as a main component) which has a peeling action. In addition, the peeling action can be further enhanced by processing the surface of the peeling action part 16 into a concavo-convex shape and reducing the area in contact with the tape.

  The exterior body 4 exposes the photographing lens 5, the finder objective window 6, the counter window 10, the pilot lamp 11 and the like to the outside from each opening formed therein. The exterior body 4 covers an unsightly portion of the unit main body 3 to improve its appearance, and includes a product name and description.

  In FIG. 2, the main body base 20 incorporated in the unit main body 3 is provided with an aperture 21 at the center for restricting the light from the photographing lens 5 to determine the size of the photographing frame. The main body base 20 is provided with a film roll chamber 22 and a cartridge chamber 23 on both sides of the aperture 21. The film roll chamber 22 is loaded with an unexposed photographic film 31 previously drawn from the film cartridge 30 in a roll shape. The cartridge chamber 23 is loaded with a film cartridge 30 for sequentially winding and storing the photographed portion of the photographic film 31 for each photographing. The photographic film 31 and the film cartridge 30 are loaded when the lens-fitted film unit 2 is manufactured. Further, the film cartridge 30 includes types such as a cartridge and an APS cartridge, and stores different types of photographic films 31.

  The winding knob 12 is rotatably attached to the upper portion of the cartridge chamber 23, and a shaft 12 a integrally provided at the lower portion engages with the end portion of the spool 32 of the film cartridge 30. As a result, when the winding knob 12 is rotated, the photographed portion of the photographic film 31 is wound up in the film cartridge 30 and the unexposed portion of the photographic film 31 moves from the film roll chamber 22 to the back of the aperture 21. Set.

  On the front side of the main body base 20, there are various parts constituting a shutter mechanism that drives shutter blades in response to a pressing operation of the release button 9, a film counter mechanism that counts the number of remaining frames that can be photographed, and a photographing lens. 5, a lens constituting the finder 6, a strobe device and the like are attached, and a front cover 3a is attached so as to cover them.

  The rear cover 3 b covers the back side of the main body base 20 that houses the photographic film 31 and the film cartridge 30. The bottom covers (sealing members) 17 and 18 are formed of opaque resin integrally with the rear cover 3b. The bottom lids 17 and 18 are opened and closed by being bent around the joints 17b and 18b at one end, and locking claws 17a and 18a are formed at the other ends thereof. The locking claws 17a and 18a are engaged with locking holes 22a and 23a formed in the film roll chamber 22 and the cartridge chamber 23, respectively. The bottom lids 17 and 18 tightly seal the film roll chamber 22 and the cartridge chamber 23, and confine the photographic film 31 and the film cartridge 30 in each chamber of the unit body 3.

  FIG. 3 shows an example of a region where the above-described peeling action portion 16 is formed on the outer surface of the unit body 3. This peeling action part 16 covers the area | region which gave the dot pattern in the same figure, ie, the outer surface of the bottom covers 17 and 18, and the bottom face 3c of the unit main body 3, and the front surface of the unit main body 3, the back surface, the left side surface, and the right side It forms in a part of each outer surface of the front cover 3a and the rear cover 3b so that it may continue to a surface. In this way, the peeling action part 16 covers the lower part of the unit main body 3.

  The lens-equipped film unit 2 configured as described above is photographed by pressing the release button 9 in the same manner as the conventional film-equipped film unit. In addition, when the release button 9 is pressed while charging is completed, strobe light is emitted from the strobe light emitting unit 7 toward the subject in synchronization with shooting. The charging operation for strobe emission is performed by operating the charging operation knob 8, and the completion of charging is confirmed by the lighting of the pilot lamp 11.

  Next, FIG. 4A shows a state in which the film cartridge 30 is stored in the cartridge chamber 23 in a light-tight manner. At this time, the bottom lid 18 (cartridge chamber sealing member) is bent to the inside of the cartridge chamber 23 with the joint portion 18b formed to be thin as an axis, and the locking claw 18a is the main body in the cartridge chamber 23. The cartridge chamber 23 is engaged with a locking hole 23 a formed in the base portion 20 to keep the inside of the cartridge chamber 23 light-tight. When the bottom lid 18 is closed in this way, the bottom lid 18 is inclined toward the inside of the cartridge chamber 23 with respect to the bottom surface 3 c of the unit body 3.

  FIG. 4B shows a state in which the film cartridge 30 is taken out from the cartridge chamber 23 after the photographing is finished. When a force is applied to the bottom lid 18 to open the bottom lid 18 to take out the film cartridge 30, the locking claw 18a engaged with the locking hole 23a is broken and broken. As a result, the bottom cover 18 is opened, and the film cartridge 30 containing the photographed photographic film 31 is slid in the direction of the bottom surface 3c and pulled out from the cartridge chamber 23.

  FIG. 5 shows a state in which the unexposed photographic film 31 is stored in the film roll chamber 22 in a light-tight manner. Similar to the bottom lid 18 of the cartridge chamber 23, the bottom lid 17 (film roll chamber sealing member) is bent to the inside of the film roll chamber 22 with the joint portion 17b formed to be thin as an axis. A pawl 17a is engaged with a locking hole 22a formed in the main body base 20 in the film roll chamber 22 to keep the film roll chamber 22 light-tight. Thus, the bottom lid 17 is inclined in the inner direction of the film roll chamber 22 with respect to the bottom surface 3 c of the unit body 3. When the bottom lid 17 is opened, the locking claw 17a is broken and destroyed.

  In this way, the portions that are destroyed when the bottom lids 17 and 18 are opened are only the locking claws 17a and 18a, and can be suppressed to a small extent. The joint portions 17b and 18b become shafts when the bottom lids 17 and 18 are opened and closed by reducing the wall thickness. Instead, the joint portions 17b and 18b are hinges (hinges) using metal. ).

  Thus, once the bottom lids 17 and 18 of the cartridge chamber 23 and the film roll chamber 22 are opened, the locking claws 17a and 18a are broken. After the bottom lids 17 and 18 are opened, an unauthorized trader or the like refills the film cartridge 30 and the photographic film 31 and fixes the bottom lids 17 and 18 and their peripheral portions with adhesive tape, and the gaps are fixed. Even if an attempt is made to reuse the lens-fitted photo film unit 2 by eyelashing, since the peeling action part 16 is formed so as to cover the bottom lids 17 and 18, the tape cannot be fixed. It is difficult to keep the film roll chamber 22 light-tight.

  Further, even if the contractor tries to reinforce the blinding and light shielding by covering the entire unit body 3 with a paper box, the lens-fitted photo film unit 2 according to the present invention is as shown in FIGS. In addition, since the bottom lids 17 and 18 are inclined with respect to the bottom surface 3 c of the unit body 3, there is a gap between the paper box and the bottom lids 17 and 18, and the bottom lids 17 and 18 are attached to the bottom lids 17 and 18. Since the tape is easily peeled off, the reliability with respect to light tightness is greatly reduced by opening the bottom lids 17 and 18 in the paper box.

  In the lens-fitted photo film unit 2 of the present invention that performs such an action, the peeling action part 16 is also formed on a part of the grip part 15, so that the grip performance of the grip part 15 is lowered. In the lens-fitted photo film unit 2, an annular strap 13 can be attached to the unit main body 3 by the strap holder 14, so that the photographer holds the grip part 15 by passing the hand through the annular part of the strap 13. 2 fall accidents can be prevented.

  In the above embodiment, the peeling action portion 16 is formed so as to cover the lower part of the unit main body 3. However, in order to prevent the bottom lids 17 and 18 from being fixed with tape, at least the cartridge chamber 23 and the film roll. The peeling action part 16 should just be formed in the outer surface of the bottom lids 17 and 18 of the chamber 22. FIG. Therefore, the peeling action part 16 may be formed in an appropriate region of the outer surface of the unit body 3 so as to include the outer surfaces of the bottom lids 17 and 18. It goes without saying that the peeling action portion 16 may be formed on the entire outer surface of the unit body 3.

  In the above embodiment, the bottom lids 17 and 18 are provided in the cartridge chamber 23 and the film roll chamber 22, but the bottom lid 17 of the film roll chamber 22 may not be provided, and at least the cartridge from which the film cartridge 30 is pulled out. A bottom lid may be provided only in the chamber 23.

It is a general-view perspective view of a film unit with a lens. It is a disassembled perspective view of a film unit with a lens. It is a figure which shows the front surface, back surface, left side surface, right side surface, and bottom surface of a film unit with a lens. (A) is sectional drawing of the cartridge chamber in alignment with the AA in FIG. 3, (B) is sectional drawing which shows a mode that a film cartridge is taken out. It is sectional drawing of the film roll chamber in alignment with the BB line in FIG.

Explanation of symbols

2 Film unit with lens 3 Unit body 3a Front cover 3b Rear cover 3c Bottom 13 Strap 14 Strap holder 15 Grip part 16 Peeling action part 17 Bottom cover (film roll chamber sealing member)
17a Locking claw 17b Joint 18 Bottom cover (cartridge chamber sealing member)
18a Locking claw 18b Joint 20 Main body base 22 Film roll chamber 22a Locking hole 23 Cartridge chamber 23a Locking hole 30 Film cartridge 31 Photo film

Claims (13)

A lens-fitted film unit in which a unit body having a film roll chamber for storing a roll-shaped photographic film and a cartridge chamber for storing a film cartridge includes a cartridge chamber sealing member for sealing the inside of the cartridge chamber in a light-tight manner. In
A film-fitted unit with a lens, wherein a peeling action part for peeling off an adhesive tape is formed on an outer surface of the cartridge chamber sealing member.   2. The film unit with a lens according to claim 1, wherein the unit main body has the peeling action portion formed at least in a peripheral portion of the cartridge chamber sealing member on an outer surface thereof.   The unit main body further includes a film roll chamber sealing member for light-tightly sealing the film roll chamber, and the peeling action portion is formed on an outer surface of the film roll chamber sealing member. The film unit with a lens according to claim 1, wherein the film unit has a lens.   The film unit with a lens according to claim 3, wherein the peeling operation portion is formed at least in a peripheral portion of the film roll chamber sealing member on the outer surface of the unit main body.   When the cartridge chamber sealing member is sealed, the other end of the cartridge chamber sealing member is attached to the cartridge chamber so as to be inclined with respect to the surface of the unit body to which the one end is bonded. The film unit with a lens according to claim 1, wherein the film unit has a lens.   When the other end of the cartridge chamber sealing member is provided with a locking claw, a locking hole is provided in the cartridge chamber for engaging with the locking claw, and when the sealed cartridge chamber is opened, 6. The film unit with a lens according to claim 5, wherein the engaging claw engaged with the engaging hole is broken.   When the film roll chamber is sealed, the other end of the film roll chamber sealing member is attached to the film roll chamber so as to be inclined with respect to the surface of the unit main body to which the film roll chamber is bonded. The film unit with a lens according to any one of claims 1 to 6.   A locking claw is provided on the other end of the film roll chamber sealing member, and a locking hole is provided in the film roll chamber for engaging with the locking claw, thereby opening the sealed film roll chamber. The film unit with a lens according to claim 7, wherein the locking claw engaged with the locking hole is broken.   9. The lens-fitted photo film unit according to claim 1, wherein the peeling action part is formed by applying a peeling material having a peeling action.   9. The lens-fitted photo film unit according to claim 1, wherein the peeling action part is formed of a material having a peeling action.   The film unit with a lens according to claim 9, wherein a main component of the release material is silicon.   The film unit with a lens according to claim 10, wherein the material is mainly composed of silicon.   The film unit with a lens according to any one of claims 1 to 12, wherein the unit main body is provided with a strap holder capable of attaching a strap.

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