JP2007234081A - Cartridge for photosensitive recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cartridge for a photosensitive recording medium for improving light shielding performance and reliability and being easily manufactured. <P>SOLUTION: The cartridge 2 for the photosensitive recording medium comprises an inner case 11 having a disk storage part 3 for freely rotatably storing a disk-like photosensitive recording medium 4, an outer case 12 for storing the inner case 11, and a shutter 13 incorporated between the inner case 11 and the outer case 12 and moved between positions for opening and closing first openings 18 and 19. One of the through-hole for the fastening member of the inner case 11 and the through-hole for connecting the outer case 12 is formed at a boss part, the boss part is fitted to the other, and the inner case 11 and the outer case 12 are positioned. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a photosensitive recording medium cartridge, and more particularly, to a photosensitive recording medium cartridge that can be manufactured easily while improving light shielding performance to improve reliability.

  A hologram recording medium for recording data by hologram has been invented (see, for example, Patent Document 1). This hologram recording medium is a photosensitive recording medium in which a hologram recording layer made of a photosensitive material is layered on a disk-shaped support, and has been widely used by recording data in multiple layers as laser light interference fringes. Thus, a larger data recording capacity can be obtained than a DVD that is a recording medium. This hologram recording medium is handled by being housed in a cartridge having a light-shielding function and a dust-proof function because the performance of the hologram recording layer is adversely affected by exposure of the hologram recording layer or adhesion of dust (for example, Patent Document 2). reference). Further, there is known a cartridge in which a cartridge casing, a shutter plate, and a cover are configured (see, for example, Patent Document 3).

  In the invention described in Patent Document 1, a hologram recording medium is accommodated in a cartridge similar to a DVD-RAM cartridge. This cartridge is formed of a material having a low transmittance of light in a wavelength region that affects the hologram recording layer. Although the detailed configuration of the cartridge is not described in Patent Document 1, it is considered that the cartridge has the same configuration as the cartridge described in Patent Document 2.

  In the invention described in Patent Document 2, a cartridge is formed of a material that shields the sensitive color of the hologram recording layer, and a sponge-like light shielding material is attached to the joint of the movable part that exposes the hologram recording medium to the outside. Yes. Further, a cartridge body is described that includes a cartridge body that accommodates a recording medium in a rotatable state, an opening that is provided in the cartridge body and exposes a part of the recording medium to the outside, and a shutter that opens and closes the opening. ing.

  In the invention described in Patent Document 3, an overlap is provided between the periphery of the opening of the cartridge housing and the shutter plate, and between the shutter plate and the periphery of the opening of the cover. Prevent entry. The cover is fixed to the cartridge casing by adhering to a part of the outer surface of the cartridge casing.

JP 2004-029476 A JP 2003-317422 A JP 2003-317424 A

  If the cartridge containing the hologram recording medium is not properly shielded and dust-proof between the cartridge main body and the shutter, light and dust will enter the cartridge and adversely affect the hologram recording medium. However, Patent Document 1 does not describe a light shielding and dustproof structure between the cartridge body and the shutter.

  The cartridge described in Patent Document 2 is shielded from light by a sponge-like light shielding material between the cartridge body and the shutter. However, when this light shielding material peels off or deteriorates, appropriate light shielding and dust prevention cannot be performed. There is a problem. Further, since the cartridge described in Patent Document 2 does not include a cartridge cover and the shutter is directly exposed to the outside, the shutter may be deformed when the shutter is accidentally opened or a large external force is applied. In other words, there is a possibility that the hologram recording medium is exposed to light and cannot be used.

  In the cartridge described in Patent Document 3, a cartridge cover is attached by being attached to a recess formed in the cartridge housing, and has a shutter protection function. However, similarly to the cartridge described in Patent Document 2, the thin plate-like shutter and the cartridge cover are arranged so as to be exposed to the outermost part of the cartridge, so that an external force is easily applied and there is a possibility that the cartridge is deformed. The performance was not always sufficient. Further, since the cartridge cover is fixed by being bonded to the cartridge housing, there is a problem that the workability is poor and it is difficult to manufacture the cartridge efficiently.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a photosensitive recording medium cartridge which can be easily manufactured while improving light shielding performance and reliability.

  The above object of the present invention is to provide a disk-shaped photosensitive recording medium, a disk accommodating portion that rotatably accommodates the photosensitive recording medium, and a center and recording surface of the photosensitive recording medium that are exposed to the outside. An inner case having a first opening, and a second opening that faces the first opening and exposes the center of the photosensitive recording medium and the recording surface to the outside, and is located outside the inner case. An outer case that accommodates the inner case, and a position between the inner case and the outer case, and a closed position that closes the first opening and an open position that opens the first opening. And a shutter disposed in a movable manner in the photosensitive recording medium cartridge, wherein the inner case is provided with a plate-shaped first cover provided with a through hole for a fastening member and covering the surface side of the photosensitive recording medium. 1 Inner shell and fastening A plate-like second inner shell that is provided with a material through hole and covers the back side of the photosensitive recording medium, and the outer case is coupled to the fastening hole corresponding to the fastening member through hole of the inner case. A through hole is provided, and has a first outer shell and a second outer shell covering the outside of the inner case, and one of the through hole for fastening member and the through hole for coupling is formed in a boss portion, and the boss A photosensitive recording medium cartridge, wherein the first inner shell, the second inner shell, the first outer shell, and the second outer shell are relatively positioned by fitting a portion to the other. Achieved.

  According to the photosensitive recording medium cartridge having the above-described configuration, at least one of the fastening member through-holes of the first inner shell and the second inner shell and the coupling through-holes of the first outer shell and the second outer shell is a boss. It is formed in the part. The first inner shell, the second inner shell, the first outer shell, and the second outer shell are assembled with the boss portion fitted into the other through hole for fastening member and the through hole for coupling. The target position can be easily positioned, the assembling property is improved, and the production can be efficiently performed.

  Another object of the present invention is to expose a disc-shaped photosensitive recording medium, a disc accommodating portion for rotatably accommodating the photosensitive recording medium, and the center and recording surface of the photosensitive recording medium to the outside. An inner case having a first opening; and a second opening that faces the first opening and exposes the center of the photosensitive recording medium and the recording surface to the outside. An outer case that accommodates the inner case, a closed position that is incorporated between the inner case and the outer case, and closes the first opening, and an open position that opens the first opening. A photosensitive recording medium cartridge including a shutter movably disposed between the inner case and the inner case, the inner case being provided with a through hole for a fastening member and covering the surface side of the photosensitive recording medium With the first inner shell A plate-shaped second inner shell provided with a fastening member through hole and covering the back side of the photosensitive recording medium, and a fastening member through hole provided and sandwiched between the first inner shell and the second inner shell. A frame-shaped disc holding member that holds the photosensitive recording medium, and the outer case is provided with a coupling through hole corresponding to the through hole for the fastening member of the inner case, and the inner case A first outer shell and a second outer shell covering the outside of the case, wherein one of the through hole for fastening member and the through hole for coupling is formed in a boss portion, and the boss portion is fitted to the other The first inner shell, the second inner shell, the disk holding member, the first outer shell, and the second outer shell are relatively positioned. It is accomplished by recording medium cartridge.

  According to the photosensitive recording medium cartridge having the above-described configuration, at least one of the first inner shell, the second inner shell, the through hole for the fastening member of the disk holding member, and the through hole for coupling the first outer shell and the second outer shell. One is formed on the boss. Since the first inner shell, the second inner shell, the disc holding member, the first outer shell, and the second outer shell are assembled by fitting the boss portion into the other through hole for fastening member and the through hole for coupling, The relative position of each member can be easily positioned, the assemblability is improved, and the production can be efficiently performed.

  According to the present invention, it is possible to provide a cartridge for a photosensitive recording medium that can improve the light shielding performance and reliability and can be easily manufactured.

  Embodiments of a photosensitive recording medium cartridge according to the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view of a hologram recording medium cartridge (hereinafter abbreviated as cartridge) according to an embodiment of the present invention, FIG. 2 is a perspective view showing the external shape of the hologram recording medium cartridge in FIG. 1, and FIG. It is a perspective view of the inner case where the 1st inner shell and the 2nd inner shell were piled up and assembled. 4 is a plan view for clearly showing each cross-sectional position, FIG. 5 is a cross-sectional view taken along line BB in FIG. 4, FIG. 6 is an enlarged view of a portion surrounded by a circle I in FIG. 8 is an enlarged view of a portion surrounded by a circle J in FIG. 7, FIG. 9 is a sectional view taken along a line DD in FIG. 4, and FIG. 10 is an enlarged view of a portion surrounded by a circle G in FIG. 11 is an enlarged view of a portion surrounded by a circle H in FIG. 9, FIG. 12 is an FF sectional view in FIG. 4, FIG. 13 is an enlarged view of a portion surrounded by a circle K in FIG. FIG. 13 is an enlarged view of a portion surrounded by a circle L in FIG. 12.

  As shown in FIGS. 1 and 2, the cartridge 2 is loaded from the direction of the arrow C to a hologram recording apparatus or the like that handles the cartridge. Positioning grooves 7 and 8 into which positioning members provided in each device are inserted when the cartridge 2 is loaded in various devices such as a hologram recording device are provided on both side surfaces of the front end of the cartridge 2 in the loading direction. Yes.

  The recording disk 4 is a hologram recording disk having a disk shape with a hole in the center, and hologram recording layers are provided on both sides. In this hologram recording layer, for example, data is recorded in a multi-layered manner as interference fringes of laser light by laser light in the wavelength range of green 532 nm to blue 405 nm. A reinforcing material may be added to the hole of the recording disk 4. The cartridge 2 is set in the hologram recording apparatus with either the A surface 2a or the B surface 2b facing upward in order to perform recording on both recording surfaces of the recording disk 4.

  The cartridge 2 includes a cartridge body 21 and a shutter 13. The cartridge main body 21 includes an inner case 11 provided with the disk accommodating portion 3, an outer case 12 provided outside the inner case 11 and accommodating the inner case 11, and a lock mechanism 28 that locks the shutter 13. Has been. The shutter 13 includes a shutter member 55 that is a thin plate member formed in a substantially U-shape, and a slide member 56 that is fixed to the shutter member 55 and extends in the shutter closing direction. The shutter member 55 is incorporated between the inner case 11 and the outer case 12 so as to sandwich both surfaces of the inner case 11.

  On both surfaces of the outer case 12, substantially rectangular outer openings 14 and 15, which are second openings, are formed. These external openings 14 and 15 are closed by the first shutter 55a and the second shutter 55b when the shutter 13 is in the closed position.

  As shown in FIG. 2, when the shutter 13 moves toward the opening position in the direction of arrow D, the same shape provided in the inner case 11 so as to face the outer openings 14, 15 together with the outer openings 14, 15. The internal openings 18, 19 are opened. Thereby, the central part 4a of the recording disk 4 accommodated in the disk accommodating part 3 and the recording surface 4b are exposed to the outside.

  The shutter 13 is urged to a closed position by a built-in shutter spring, and is locked at the closed position by a lock mechanism 28. To release the lock mechanism 28, the second lock member 64 protruding into the positioning groove 7 is pushed into the cartridge 2, and in this state, exposed from the openings 72 and 73 of the A surface 2a and the B surface 2b. The first lock member 63 is slid to the rear end side in the cartridge loading direction. Thus, since the shutter 13 is locked at the closed position by the lock mechanism 28 that cannot be released unless a two-step operation is performed, the shutter 13 is not inadvertently opened.

  As shown in FIGS. 1 and 3, the inner case 11 includes a substantially plate-shaped first inner shell 16 and a second inner shell 17 joined to the first inner shell 16. The first inner shell 16 and the second inner shell 17 are formed by injection molding using, for example, the same or similar thermoplastic plastic to which a light shielding material and a lubricant are added. The first inner shell 16 and the second inner shell 17 may be separate parts independent from each other as shown in FIG. 1, or may be connected by a hinge portion 29 as shown in FIG.

  In the case where the first inner shell 16 and the second inner shell 17 are formed by being connected by the hinge portion 29, the first inner shell 16 and the second inner shell 17 can be integrally formed with one mold, and the number of molds can be reduced. Also, the inner case 11 can be easily assembled by folding the first inner shell 16 and the second inner shell 17 by folding the inner case 11 in the direction of the arrow at the hinge portion 29.

  In addition, the member connected by the hinge part 29 is not limited to inner shells, An inner shell and outer shells, or outer shells can also be connected by the hinge part 29. FIG.

  As shown in FIG. 5, on the inner surface of the second inner shell 17, a first light shielding wall 30 that is a protrusion formed with an inner diameter larger than the outer diameter of the recording disk 4, and the first light shielding wall 30. And a second light-shielding wall 31 provided on the outer side. Inside the light shielding wall 30, an internal opening 19 is provided to expose the central portion 4a of the recording disk 4 and the recording surface 4b to the outside. Further, a third light shielding wall 33 inserted between the first light shielding wall 30 and the second light shielding wall 31 of the second inner shell 17 is formed on the inner surface of the first inner shell 16. Inside the third light shielding wall 33, an internal opening 18 for exposing the central portion 4a of the recording disk 4 and the recording surface 4b to the outside is provided.

  When the recording disk 4 is placed inside the first light shielding wall 30 of the second inner shell 17 and the first inner shell 16 is overlaid on the upper surface of the second inner shell 17, the third light shielding wall 33 becomes the first light shielding wall 33. It is inserted between the wall 30 and the second light shielding wall 31. The disk housing portion 3 is formed by these light shielding walls 30, 31, 33 and the inner surfaces of the first inner shell 16 and the second inner shell 17. The side wall of the disk housing portion 3 has a labyrinth-like light shielding structure formed by three light shielding walls 30, 31, 33. Therefore, even if light or dust enters from the joint of the first inner shell 16 and the second inner shell 17, they do not enter the disk housing portion 3.

  In FIG. 3, the first inner shell 16 and the second inner shell 17 extend in a substantially rectangular shape obliquely upward to the left, and a rectangular flat portion including internal openings 18 and 19 is formed. The outer surface of the rectangular flat portion is offset inward to form shutter sliding surfaces 16a and 17a. Jetty portions 16b and 17b are formed at the peripheral edge portions of the internal openings 18 and 19 and the upper and lower portions of the shutter sliding surfaces 16a and 17a.

  As shown in FIGS. 9 to 11, the shutter member 55 has a direction (in the direction of arrow D in FIG. 2) and a direction in which the internal openings 18 and 19 are opened along the shutter sliding surfaces 16 a and 17 a (arrow D in FIG. 2). In the opposite direction). The inner surface of the shutter member 55 is in sliding contact with the jetty portions 16b and 17b, and a slight gap is formed between the other part of the shutter sliding surfaces 16a and 17a and the inner surface of the shutter member 55. As a result, the shutter member 55 can ensure a high light shielding property by sliding contact with the jetty portions 16b and 17b, and can move smoothly without sliding resistance.

  As shown in FIGS. 1 and 3, ribs 16 c and 16 d are extended obliquely below the first inner shell 16. The second inner shell 17 has ribs 17c, 17d and 17e extending obliquely downward and obliquely upward. Further, substantially semicircular cutout portions 16f and 17f are formed at the end of the rectangular flat portion, and a screw which is a fastening member described later is inserted therethrough.

  As shown in FIGS. 7, 8, and 12 to 14, boss portions 17g, 17h, 17j, and 17k are formed on the ribs 17c, 17d, and 17e and the rectangular flat portion of the second inner shell 17, respectively. A through hole 22 for a fastening member is formed in each boss portion 17g, 17h, 17j, 17k.

  The ribs 16c and 16d of the first inner shell 16 are formed with through holes 23 for fastening members, respectively, and when they are overlapped with the second inner shell 17, they are fitted with the boss portions 17g, 17h and 17j.

  As shown in FIGS. 1 and 2, the outer case 12 includes a first outer shell 26 and a second outer shell 27. The first outer shell 26 and the second outer shell 27 are formed by injection molding using, for example, the same or similar heat-resistant thermoplastic plastic to which a light shielding material and a lubricant are added. An example of the heat resistant plastic is a polycarbonate resin having a high surface hardness. Since the polycarbonate resin has heat resistance, the deformation of the outer case 12 is small even when the environmental temperature changes. Further, the water absorption rate is as low as 0.2% or less, which is advantageous for changes in humidity.

  That is, when the cartridge 2 is attached to the recording / reproducing apparatus, even if the temperature and humidity change, the deformation amount of the outer case 12 is small, and the inner case 11 is protected from changes in temperature and humidity. In addition, since the outer case 12 has a high surface hardness, even if an inadvertent external force acts on the outer case 12, the inner case 11 is protected from the external force and the inner case 11 is prevented from being deformed. Thereby, the contact between the inner case 11 and the recording disk 4 is prevented, and the reliability of the cartridge 2 is improved.

  As shown in FIGS. 1, 5, 7, 9, and 12, the first outer shell 26 and the second outer shell 27 are provided with protrusions 24 and 25 on the entire periphery of the edge. Outside the ridges 24 and 25, external openings 14 and 15 for exposing the central portion 4a and the recording surface 4b of the recording disk 4 to the outside are provided, respectively. Piers 34 and 35 are formed on the inner surfaces of the peripheral edges of the external openings 14 and 15 (see FIGS. 10 and 11).

  The outer surface of the shutter member 55 is in sliding contact with the jetty portions 34 and 35, and a slight gap is formed between the other portions of the first outer shell 26 and the second outer shell 27 and the outer surface of the shutter member 55. The Thereby, the shutter member 55 can move smoothly without sliding resistance while ensuring high light shielding properties.

  As shown in FIGS. 7, 8, and 12 to 14, the inner surface of the first outer shell 26 has coupling through holes corresponding to the four fastening member through holes 22 and 23 of the inner case 11. 36 and 37 are formed. More specifically, a boss portion 26c that fits into the fastening member through hole 23 is provided in correspondence with the fastening member through hole 23 (left obliquely downward in FIG. 1) formed in the rib 16c. A coupling through hole 36 is formed in the boss portion 26c (see FIG. 14). Corresponding to the fastening member through hole 23 provided in the rib 16d (diagonally downward to the right in FIG. 1), there is provided a recess to be fitted to the boss portion 17h to be fitted into the fastening member through hole 23. A through-hole 37 for coupling is formed in (see FIG. 8).

  Further, a recess that fits with the boss 17k is provided corresponding to the notch 16f of the second outer shell 27, and a coupling through hole 37 is formed in the recess (see FIG. 13). Further, a boss portion 26e is provided corresponding to the fastening member through hole 22 (in the diagonally upper right in FIG. 1) formed in the boss portion 17j, and a coupling through hole 36 is formed in the boss portion 26e. (See FIG. 7).

  On the inner surface of the second outer shell 27, coupling through holes 36 and 37 are formed corresponding to the four fastening member through holes 22 and 23 of the inner case 11. Specifically, a recess that fits with the boss 17g is provided corresponding to the fastening member through hole 22 (left obliquely downward in FIG. 1) formed in the boss 17g, and the coupling through hole is provided in the recess. 37 is formed (see FIG. 14). A boss portion 27h in which a coupling through hole 36 is formed is formed corresponding to the fastening member through hole 22 formed in the boss portion 17h (lower right diagonally in FIG. 1) (see FIG. 8).

  Further, corresponding to the fastening member through hole 22 (in the diagonally upper right in FIG. 1) formed in the boss portion 17j, a concave portion to be fitted to the boss portion 17j is provided, and a coupling through hole 37 is formed in the concave portion. (See FIG. 7). Furthermore, a boss portion 27k in which a coupling through hole 36 is formed is formed corresponding to the fastening member through hole 22 formed in the boss portion 17k (upwardly diagonally left in FIG. 1) (see FIG. 13). .

  And when the 1st inner shell 16 and the 2nd inner shell 17 are piled up and the 1st outer shell 26 and the 2nd outer shell 27 are further assembled in the outside, a corresponding boss part, a hole, and a crevice fit. And is automatically positioned. As a result, the corresponding four fastening member through holes 22 and 23 and coupling through holes 36 and 37 are arranged so that their axial centers coincide with each other, and each member is inserted through the screw 32 which is a fastening member. Are joined together.

  As shown in FIG. 1, the shutter 13 includes a shutter member 55 in which a light-shielding thin plate is formed in a substantially U shape, and an elongated plate-like slide member 56 attached to the shutter member 55. The inner openings 18 and 19 are biased in the closing direction. The shutter spring 59 is made of, for example, a torsion coil spring, and both ends thereof are locked to the slide member 56 and the inner surface of the first outer shell 26.

  The shutter member 55 and the slide member 56 are formed of a plastic to which a light shielding material and a lubricant are added in order to ensure light shielding properties and sliding properties. The shutter member 55 includes a first shutter 55 a inserted between the outer surface of the first inner shell 16 and the inner surface of the first outer shell 26, and the outer surface of the second inner shell 17 and the inner surface of the second outer shell 27. A second shutter 55b inserted between the first shutter 55a and the second shutter 55b is provided, and a continuous portion 55c to which the slide member 56 is attached is provided. A part of the continuous portion 55 c is cut and raised to form a fixing portion 55 d for fixing to the slide member 56.

  The shutter member 55 is assembled by the first shutter 55a and the second shutter 55b so as to sandwich both surfaces of the inner case 11, and then the outer case 12 is attached and accommodated in the outer case 12. The first shutter 55a and the second shutter 55b move along the shutter sliding surfaces 16a and 17a of the first inner shell 16 and the second inner shell 17, respectively, and the inner surfaces thereof move while sliding only on the jetty portions 16b and 17b.

  That is, the first shutter 55a and the second shutter 55b move in sliding contact with only the jetty portions 16b and 17b without sliding in contact with the entire surface of the shutter sliding surfaces 16a and 17a. It can move smoothly without dynamic resistance. For this reason, generation | occurrence | production of the chips etc. by movement can be suppressed. The shutter sliding surfaces 16a and 17a may be roughened to diffuse incident light. Similarly, the inner surface of the outer case 12 (first outer shell and second outer shell) and the inner and outer surfaces of the shutter member 55 may be roughened.

  As shown in FIGS. 2, 6, and 15, the slide member 56 includes the first outer shell 26 and the second outer shell 26 so that the loading direction front surface 56 a of the cartridge 2 is exposed from the leading end surface of the outer case 12 in the loading direction. It is slidably assembled with the shell 27. On the side surface of the slide member 56, an attachment recess 56b to which the fixing portion 55d of the shutter member 55 is attached is provided. A fixing portion 55d of the shutter member 55 is fixed to the mounting recess 56b with a screw or the like (not shown), and the shutter member 55 and the slide member 56 are fixed. In addition, this adhesion may use an adhesive, a double-sided tape, etc., and may use various welding.

  As shown in FIGS. 6 and 15, a protrusion 56 c is formed on the side surface of the slide member 56 along the longitudinal direction. The protrusion 56c is slidably fitted into grooves 26a and 27a provided on the inner surfaces of the first outer shell 26 and the second outer shell 27 on the front end side in the loading direction. As a result, the slide member 56 can smoothly slide without being detached from the first outer shell 26 and the second outer shell 27.

  At the end of the front surface 56a of the slide member 56 in the shutter closing direction, there is provided an engagement groove 56d formed in a substantially C shape whose width gradually decreases from the end surface toward the center. A locking portion 56e that is operated when opening the shutter 13 protrudes from the back side of the engaging groove 56d.

  At the front end portion of the outer case 12, a part of the shutter 13 in the closing direction is notched and an opening portion 40 is provided (see FIG. 2). The locking portion 56e is exposed to the outside from the opening portion 40 without being hidden by the outer case 12 by providing the sliding member 56 to the shutter member 55 so as to extend in the shutter closing direction. The opening portion 40 is provided to avoid interference with the locking portion 56e when the shutter 13 is moved to the open position. The movement distance of the shutter 13 is insufficient and the internal openings 18 and 19 are opened. By forming it when it cannot be opened, the movement distance can be increased.

  Next, the lock mechanism and the shutter release mechanism will be described with reference to FIGS. FIG. 15 is an exploded perspective view showing the configuration of the lock mechanism, FIG. 16 is an operation explanatory view of the lock mechanism shown in FIG. 15, and FIG. 17 is an explanatory view showing an example of various mechanisms for opening the shutter.

  As shown in FIG. 15, the slide member 56 has a recess 56f formed on the back surface side adjacent to the locking portion 56e. The right side surface of the recess 56f in the drawing is formed with an engagement inclined surface (engagement portion) 56g that gradually inclines in the shutter closing direction toward the front in the cartridge loading direction. Further, a guide inclined surface 56h chamfered substantially parallel to the engaging inclined surface 56g is formed at a corner portion between the right end surface and the lower surface of the slide member 56 in the drawing.

  The lock mechanism 28 includes a first lock member 63 that locks the shutter in the closed position, a second lock member 64 that locks the movement of the first lock member 63, and the first lock member 63 upward in the figure. A lock spring 65 that urges and urges the second lock member 64 in the right direction in the drawing is configured.

  The first lock member 63 is incorporated in a slide frame 66 provided in the second outer shell 27 and is slidable in the vertical direction. At the tip of the first lock member 63, a lock piece 63a that engages with the recess 56f of the slide member 56 to lock the shutter 13, a rectangular operation hole 63b exposed to the outside from the opening 72, and a first lock A fitting groove 63 c that is formed on a side surface of the member 63 and engages with the second lock member 64 is provided.

  The second lock member 64 is incorporated in the slide frame 66 so as to overlap the first lock member 63 and is slidable in the lateral direction. The second locking member 64 has a distal end 64 a formed in a substantially triangular shape and protrudes to the outside from a notch 67 provided in the positioning groove 7. The second lock member 64 is provided with a restriction projection 64b and a groove 64c formed at the rear end, and the first lock member 63 is fitted in the groove 64c so as to be movable in the vertical direction. Established.

  The upper surface of the lock piece 63a of the first lock member 63 has an inclined surface 63e for inviting engagement with the recess 56f when the shutter moves from the open position to the closed position, and the engagement inclined surface 56g of the slide member 56. Are formed substantially parallel to each other. Further, on the right side of the lock piece 63a in the drawing, a hook portion 63f that is an inclined surface substantially parallel to the engaging inclined surface 56g of the recess 56f is formed, and the slide member 56 is moved to the left in the drawing (the direction in which the shutter opens). ), The engaging inclined surface 56g engages with the hook portion 63f to reliably prevent the movement. The first lock member 63 and the second lock member 64 are urged upward and rightward by a lock spring 65 inserted into the pin 68, respectively.

  As shown in FIG. 17, in the hologram recording device (driving device) used with the cartridge 2 loaded, for example, a pair of positioning members 77 and 77 and a pair for operating the first lock member 63 And a pair of shutter opening mechanisms 80 for sliding the shutter 13 between an open position and a closed position. The pair of positioning members 77 and 77 engage with the positioning grooves 7 and 8 on both side surfaces of the loaded cartridge 2 to position the cartridge 2 in the insertion direction of the cartridge 2 and in a direction perpendicular to the insertion direction.

  The unlocking arms 78 and 78 are substantially L-shaped members that are swingably disposed around a shaft 81 fitted to one end thereof, and an inclined surface 78a is formed on the protruding portion at the tip. When the unlocking arm 78 swings and the protruding portion at the tip is inserted into the rectangular operation hole 63b of the first lock member 63 from the opening 73 of the cartridge 2, the inclined surface 78a is inserted into the cartridge in the rectangular operation hole 63b. The rear surface is pressed to move the first lock member 63 in the direction opposite to the loading direction (downward in FIG. 16).

  Since the recording disk 4 can record on both sides, the cartridge 2 is set in the apparatus with either the A side 2a or the B side 2b facing upward. The position of the mechanism 28 is reversed left and right. Therefore, the lock release arm 78 includes a lock release arm 78 for reverse loading so that the cartridge 2 can be engaged with the rectangular operation hole 63b even when the cartridge 2 is reversed and loaded.

  The shutter opening mechanism 80 includes a shutter arm 42 disposed so as to be rotatable about a fulcrum pin 41 disposed outside the side wall of the cartridge 2 to be loaded. The shutter arm 42 is provided at its tip with a shutter opening / closing roller 43 that is a shutter opening member so as to be rotatable, and is urged by a coil spring 44 in a direction in which the shutter opening / closing roller 43 comes into contact with the engagement groove 56d. Another set of the shutter opening mechanism 80 is also provided at the opposite symmetrical position in order to cope with the reverse insertion of the cartridge 2.

  As shown in FIG. 16A, when the cartridge is not used, the tip 64 a of the second lock member 64 protrudes from the notch 67 into the positioning groove 7 by the urging force of the lock spring 65. At this time, the restricting protrusion 64b of the second lock member 64 engages with the fitting groove 63c of the first lock member 63 to prevent the first lock member 63 from sliding downward.

  As shown in FIG. 16B, when the cartridge 2 is loaded into a hologram recording device or the like, the tip 64a is pushed by the positioning member 77 inserted into the positioning groove 7, and the second lock member 64 is a cartridge. The restriction protrusion 64b is pulled out from the fitting groove 63c. As a result, the first lock member 63 can slide downward. At the same time, the shutter opening / closing roller 43 is disposed at a position corresponding to the engagement groove 56d.

  Here, as shown in FIG. 16C, when the lock release arm 78 provided in the apparatus is inserted into the rectangular operation hole 63b of the first lock member 63, the first lock member 63 is locked. Since the lock piece 63a is pressed by the inclined surface 78a of the release arm 78 and slides downward and the lock piece 63a comes out of the recess 56f of the slide member 56, the shutter can be moved. At the same time, the shutter opening / closing roller 43 is fitted into the engagement groove 56d.

  Further, when the cartridge 2 is inserted, the shutter arm 42 is pressed by the cartridge 2 and rotates clockwise against the elastic force of the coil spring 44. At this time, the shutter opening / closing roller 43 is guided by the engaging groove 56d to be fitted, and the position in the direction orthogonal to the front view of FIG. 16 is regulated, while in the left direction in the figure (center direction of the cartridge 2). It moves relatively and presses the locking portion 56e to open the shutter 13.

  Since the engagement groove 56d is formed in a substantially square shape that gradually decreases in width toward the center of the cartridge 2, even if the position of the shutter opening / closing roller 43 is slightly shifted in the plate thickness direction of the cartridge 2. Easily fit into the engaging groove 56d. Further, as the shutter opening / closing roller 43 moves in the direction of the locking portion 56e, it moves while the position in the plate thickness direction is corrected by the substantially groove-shaped engagement groove 56d, so that it securely contacts the locking portion 56e. The shutter 13 is opened in contact.

  In the lock mechanism 28 of this embodiment, the shapes of the engagement inclined surface 56g and the hook portion 63f are engaged with each other when the slide member 56 moves in the direction in which the shutter 13 opens, and the engagement force is further strengthened to engage firmly. Since it is inclined in the direction, opening of the shutter 13 is reliably prevented. Further, since a two-stage operation is required to unlock the shutter 13, it is possible to prevent the shutter 13 from being inadvertently opened.

  FIG. 18 is an external perspective view of the cartridge showing the label attaching portion. As shown in FIG. 18, since the cartridge 13 is housed in the outer case 12 and is not exposed to the outside, the cartridge 2 is partially exposed to external openings 14 and 15, exposed portions of shutter-related mechanisms, and the like. It can be used freely except for. For example, labels 10A, 10B, and 10C on which titles and memos representing recorded contents are written can be wound and pasted from the A side 2a to the B side 2b of the cartridge 2. As a result, not only more information can be written, but also if the title is written on the side surface of the cartridge 2, even if many cartridges 2 are stored in a stacked state, the title on the side surface The target cartridge 2 can be easily found, and handling is greatly improved.

  As described above, according to the photosensitive recording medium cartridge of the present embodiment, it is possible to provide a photosensitive recording medium cartridge that can be easily manufactured while improving the light shielding performance and reliability.

  Next, a second embodiment of the photosensitive recording medium cartridge according to the present invention will be described. FIG. 19 is an exploded perspective view of the photosensitive recording medium cartridge according to the second embodiment. The photosensitive recording medium cartridge 20 of the second embodiment is the same as the photosensitive recording medium cartridge 2 already described with reference to FIGS. 1 to 18 except for the structure of the inner case. The description is omitted or simplified with reference numerals or equivalent reference numerals.

  The inner case 111 of the photosensitive recording medium cartridge 20 is sandwiched between a substantially plate-shaped first inner shell 116, a substantially plate-shaped second inner shell 117, and the first inner shell 116 and the second inner shell 117. And a frame-shaped disk holding member 118 for holding the recording disk 4.

  The first inner shell 116 and the second inner shell 117 are the same as the first inner shell 16 and the second inner shell 17 except that they are thin, and the internal openings 18 and 19 and the fastening member through holes 22 and 23, respectively. Is formed.

  The disk holding member 118 is formed with a frame portion 119 that is larger than the outer diameter of the recording disk 4 and has substantially the same thickness as the recording disk 4. From the frame part 119, four ribs 118a, 118b, 118c, and 118d extend obliquely upward and obliquely downward. The ribs 118a, 118b, 118c, and 118d have bosses 118g, 118h, and 118j. , 118k are formed. Fastening member penetrations 122 are provided in the boss portions 118g, 118h, 118j, and 118k.

  Then, the recording disk 4 is fitted into the frame portion 119, and both sides thereof are sandwiched between the first inner shell 116 and the second inner shell 117, and the recording disk 4 is rotatably accommodated.

  According to the photosensitive recording medium cartridge 20 of the present embodiment, the first inner shell 116, the second inner shell 117 and the disc holding member 118 constituting the inner case 111, the first outer shell 26 constituting the outer case 12, and Since the second outer shell 27 is formed with the fastening member through holes 22 and 23 and the coupling through holes 36 and 37 at the corresponding positions, the first inner shell 116, the second inner shell 117, and the disc holding The member 118, the first outer shell 26, and the second outer shell 27 are overlapped, and the screw 32, which is a fastening member, is simultaneously inserted through the fastening member through holes 22, 23 and the coupling through holes 36, 37 and easily assembled. be able to.

In addition, this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, the light-shielding wall (the member indicated by 30, 31, 33 in the first embodiment) formed on the first inner shell on the second inner shell may be formed on the first outer shell and the second outer shell, respectively. Good. If it carries out like this, the shape of a 1st inner shell and a 2nd inner shell can be used as the plate-shaped member with the flat surface.

  In the above description, a cartridge that accommodates a recording disk capable of recording on both sides has been described as an example. However, a cartridge that records on one side may be used. In this case, an opening is formed only on one surface, and this opening is opened and closed with a shutter. Further, although the cartridge for accommodating the hologram recording medium has been described as an example, the present invention can also be applied to a cartridge for accommodating other photosensitive recording media, and the same effects can be obtained.

  Furthermore, in the above-described embodiment, the shutter structure in which the opening on the front and back surfaces of the cartridge is opened and closed at the same time is taken as an example. In that case, a shutter member and a slide member may be arranged in pairs on the front and back surfaces, respectively, and the cartridge opening may be opened and closed.

1 is an exploded perspective view of a hologram recording medium cartridge according to an embodiment of the present invention. It is a perspective view which shows the external appearance shape of the cartridge for hologram recording media in FIG. It is a perspective view of the inner case where the 1st inner shell and the 2nd inner shell were piled up and assembled. It is a top view for demonstrating each cross-sectional position. It is BB sectional drawing in FIG. FIG. 6 is an enlarged view of a portion surrounded by a circle I in FIG. 5. It is CC sectional drawing in FIG. FIG. 8 is an enlarged view of a portion surrounded by a circle J in FIG. 7. It is DD sectional drawing in FIG. FIG. 10 is an enlarged view of a portion surrounded by a circle G in FIG. 9. FIG. 10 is an enlarged view of a portion surrounded by a circle H in FIG. 9. It is FF sectional drawing in FIG. FIG. 13 is an enlarged view of a portion surrounded by a circle K in FIG. 12. FIG. 13 is an enlarged view of a portion surrounded by a circle L in FIG. 12. It is a disassembled perspective view which shows the structure of a locking mechanism. It is operation | movement explanatory drawing of the locking mechanism shown in FIG. It is explanatory drawing which shows an example of the various mechanisms for opening a shutter. It is an external appearance perspective view of the cartridge which shows a label sticking part. It is a disassembled perspective view of the cartridge for hologram recording media of 2nd Embodiment.

Explanation of symbols

2 Cartridge (Photosensitive recording medium cartridge)
3 Disc storage 4 Recording disc (photosensitive recording medium)
11, 111 Inner case 12, 112 Outer case 13 Shutter 14, 15 External opening (second opening)
16 1st inner shell 17 2nd inner shell 17g, 17h, 17j, 17k Boss part 18, 19 Internal opening (1st opening)
20 Photosensitive recording medium cartridges 22 and 23 Fastening member through hole 26 First outer shell 26c and 26e Boss portion 27 Second outer shell 27h and 27k Boss portion 32 Screw (fastening member)
36, 37 Connecting through hole 116 First inner shell 117 Second inner shell 118 Disc holding member 118g, 118h, 118j, 118k Boss portion 122 Fastening member through hole

Claims (2)

A disc-shaped photosensitive recording medium;
An inner case having a disk accommodating portion for rotatably accommodating the photosensitive recording medium, and a first opening exposing the center and recording surface of the photosensitive recording medium to the outside;
An outer case that has a second opening that faces the first opening and exposes the center of the photosensitive recording medium and the recording surface to the outside, and is located outside the inner case and accommodates the inner case When,
A shutter that is incorporated between the inner case and the outer case and is movably disposed between a closed position that closes the first opening and an open position that opens the first opening;
A photosensitive recording medium cartridge comprising:
The inner case has a plate-shaped first inner shell that is provided with a through hole for a fastening member and covers the surface side of the photosensitive recording medium, and a through hole for a fastening member that is provided with a through hole for the fastening member and covers the back side of the photosensitive recording medium A plate-like second inner shell,
The outer case has a first outer shell and a second outer shell provided with a coupling through hole corresponding to the through hole for the fastening member of the inner case, and covering the outer side of the inner case,
One of the through hole for fastening member and the through hole for coupling is formed in a boss portion, and the boss portion is fitted to the other to form the first inner shell, the second inner shell, the first outer shell, And a cartridge for a photosensitive recording medium, wherein the second outer shell is relatively positioned. A disc-shaped photosensitive recording medium;
An inner case having a disk accommodating portion for rotatably accommodating the photosensitive recording medium, and a first opening exposing the center and recording surface of the photosensitive recording medium to the outside;
An outer case that has a second opening that faces the first opening and exposes the center of the photosensitive recording medium and the recording surface to the outside, and is located outside the inner case and accommodates the inner case When,
A shutter that is incorporated between the inner case and the outer case and is movably disposed between a closed position that closes the first opening and an open position that opens the first opening;
A photosensitive recording medium cartridge comprising:
The inner case has a plate-shaped first inner shell that is provided with a through hole for a fastening member and covers the surface side of the photosensitive recording medium, and a through hole for a fastening member that is provided with a through hole for the fastening member and covers the back side of the photosensitive recording medium A plate-like second inner shell, and a frame-like disc holding member which is provided with a fastening member through hole and is sandwiched between the first inner shell and the second inner shell to hold the photosensitive recording medium. Have
The outer case has a first outer shell and a second outer shell provided with a coupling through hole corresponding to the through hole for the fastening member of the inner case, and covering the outer side of the inner case,
One of the fastening member through-hole and the coupling through-hole is formed in a boss portion, and the boss portion is fitted into the other so that the first inner shell, the second inner shell, the disc holding member, A photosensitive recording medium cartridge, wherein the first outer shell and the second outer shell are relatively positioned.

Images