JP2007058982A - Cartridge for photosensitive recording medium and driving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cartridge for a photosensitive recording medium and a driving device with high reliability capable of preventing exposure of the photosensitive recording medium by surely locking a shutter in a closed state. <P>SOLUTION: The cartridge for the photosensitive recording medium has: a cartridge main body 11 which stores the disk-like photosensitive recording medium 4 and has apertures 18, 19 for exposing a part of the photosensitive recording medium 4 to the outside; the shutter 13 which is incorporated into the outside of the cartridge main body 11 and opens/closes the apertures 18, 19; and a lock member 63 which locks the shutter 13 at a closed position, wherein a hook part 63f which is an inclined plane formed so as to incline in the closing direction of the shutter 13 is formed in the lock member 63 and an engagement inclined plane 56f formed approximately in parallel with the hook part 63f and fitted to the hook part 63f while the shutter 13 is at the closed position is formed in the shutter 13. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive recording medium cartridge for storing a photosensitive recording medium and a driving apparatus, and more particularly, a locking mechanism that locks a shutter that opens and closes an opening provided in a cartridge body at a closed position, or releases the lock. The present invention relates to a photosensitive recording medium cartridge and a driving device.

  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). In addition, a cartridge having an inner case, an outer case, and a shutter and having a lock mechanism for locking the shutter is known (for example, see 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. . 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.

  The invention described in Patent Document 3 includes an elastic piece extending from the shutter and having a locking claw at the tip, and the locking claw is related to a first engagement recess or a second engagement recess formed in the outer case. In combination, there is provided a lock mechanism for holding the shutter in the closed position or the open position.

JP 2004-029476 A JP 2003-317422 A JP-A-8-55456

  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. Furthermore, even if light shielding and dustproofing are properly performed, if the shutter is opened carelessly, the hologram recording medium is exposed and cannot be used. Therefore, it is desirable to install a shutter locking mechanism in order to prevent erroneous operation of the shutter.

  However, Patent Document 1 does not describe a light shielding and dustproof structure between the cartridge main body and the shutter and a lock mechanism. Further, the cartridge described in Patent Document 2 shields light between the cartridge body and the shutter by a sponge-like light shielding material, but does not include a lock mechanism for locking the shutter in the closed position, and the shutter is inadvertent. There is a possibility that the hologram recording medium is exposed to light and may become unusable due to exposure.

  The cartridge described in Patent Document 3 does not describe any light shielding structure. Although the shutter locking mechanism is provided, the locking mechanism simply engages the engaging claw formed at the tip of the elastic thin plate spring material with the engaging recess provided in the outer case. Is held in the closed position or open position, and if a large force acts on the shutter, the lock may be released and the shutter may be opened. There was room for improvement.

  The present invention has been made in view of the above circumstances, and an object of the present invention is for a highly reliable photosensitive recording medium that can be reliably locked with the shutter closed to prevent exposure of the photosensitive recording medium. It is to provide a cartridge.

The above object of the present invention is achieved by the following photosensitive recording medium cartridge.
(1) A disc-shaped photosensitive recording medium, a cartridge main body having an opening for rotatably accommodating the photosensitive recording medium and exposing the center and recording surface of the photosensitive recording medium to the outside, and the cartridge main body A shutter that is incorporated on the outer side of the shutter and movably disposed between a closed position that closes the opening and an open position that opens the opening; and a lock member that locks the shutter in the closed position. In the recording medium cartridge, the lock member is formed with a hook portion that is an inclined surface formed so as to be inclined in a closing direction of the shutter, and the shutter is formed substantially parallel to the hook portion. A cartridge for a photosensitive recording medium, wherein an engagement inclined surface that engages with the hook portion when the shutter is in a closed position is formed.

  According to the photosensitive recording medium cartridge configured as described above, when the shutter is moved to the closed position, the hook portion is engaged with the inclined surface guided by the engaging inclined surface of the lock member, and the shutter is When moved in the opening direction, the inclined surface of the hook portion and the engaging inclined surface are engaged with each other in a direction in which the engagement is further strengthened, and therefore, the hook portion is engaged more firmly. For this reason, the shutter does not open carelessly due to carelessness of the operator, and the shutter is reliably locked in the closed position even if a large impact such as dropping acts on the shutter.

  (2) The lock member is formed with an inclined surface that is gradually inclined in the closing direction of the shutter toward the front in the insertion direction of the photosensitive recording medium cartridge at the upper side corner on the side of the opening direction of the shutter. The cartridge for photosensitive recording media as described in (1) above.

  According to the photosensitive recording medium cartridge having the above-described configuration, when the shutter is moved to the closed position, the lower side corner portion of the side surface runs along the slope when the shutter comes into contact with the lower side corner portion on the side in the closing direction of the shutter. Since the shutter is guided toward the closing position of the shutter, it is possible to prevent the lock member and the shutter from interfering with each other to prevent the shutter from being opened and closed.

  (3) The photosensitive recording medium cartridge according to (1) or (2), wherein a chamfered portion is formed at a lower corner portion on a side surface on the closing direction side of the shutter.

  According to the photosensitive recording medium cartridge configured as described above, when the shutter is moved to the closed position, when the shutter is brought into contact with the upper side corner on the side in the opening direction of the lock member, the upper side corner on the side of the lock member Is guided to the closed position side of the shutter along the surface of the chamfered portion, so that it is possible to prevent the lock member and the shutter from interfering with each other to prevent the shutter from being opened and closed. Further, as in the configuration of (2) above, if a slope inclined in the closing direction of the shutter is formed at the upper side corner of the lock member, the slope of the lock member guides the chamfered portion at the lower side corner of the shutter. Therefore, the shutter can be opened and closed more smoothly.

  (4) The photosensitive recording medium cartridge according to any one of (1) to (3), wherein the photosensitive recording medium is a hologram recording medium.

(5) A disc-shaped photosensitive recording medium, a cartridge main body having an opening for rotatably accommodating the photosensitive recording medium and exposing the center and recording surface of the photosensitive recording medium to the outside, and the cartridge main body A shutter that is incorporated on the outside of the shutter and is movably disposed between a closed position that closes the opening and an open position that opens the opening, and a lock member that locks the shutter in the closed position. The member is formed with a hook portion which is an inclined surface formed so as to incline in the closing direction of the shutter, and the shutter is formed substantially parallel to the hook portion, and the shutter is in the closed position in the state where the shutter is in the closed position. A drive device for performing recording and reproduction on a photosensitive recording medium cartridge formed with an engaging inclined surface to be engaged with a hook portion,
A drive device comprising: an unlock mechanism for operating the lock member; and a shutter slide mechanism for sliding the shutter between an open position and a closed position.

(6) The drive unit according to (5), wherein the lock release mechanism includes a pair of lock release pins that slide the lock member in the lock release direction. In this way, the unlocking portion can be operated by any one of the unlocking pins, regardless of which side of the cartridge is set upward in the drive device.

(7) The drive device according to (5) or (6) above, further comprising a positioning member that engages with a positioning groove provided on a side surface of the cartridge body. In this way, the cartridge loaded in the drive device can be held at an appropriate position during recording and reproduction.

(8) The drive unit according to any one of (5) to (7), further including a shutter slide mechanism that opens and closes the shutter. In this way, the shutter of the cartridge loaded in the driving device can be opened and closed.

(9) The drive unit according to any one of (5) to (8), wherein the lock release pin is movable in a release direction. In this way, unlocking can be performed more smoothly.

(10) In the above (6), one of the pair of lock release pins releases the lock member, and the other comes into contact with the cartridge main body and retracts in the cartridge insertion direction. Drive device.

  According to the photosensitive recording medium cartridge and the driving device configured as described above, the hologram recording medium can be held in the cartridge body in a clean state without being exposed to light.

  According to the photosensitive recording medium cartridge and the driving device of the present invention, the shutter can be reliably locked at the closed position, and exposure of the photosensitive recording medium due to inadvertent opening of the shutter can be prevented. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
<First Embodiment>
1 to 3 are perspective views showing the external shape of a hologram recording medium cartridge (hereinafter abbreviated as a cartridge) according to an embodiment of the present invention. FIG. 1 is a perspective view showing a state in which one surface of the cartridge is upward, FIG. 2 is a perspective view showing a state in which the opposite surface is upward, and FIG. 1 is a perspective view showing a state in which a disc-shaped hologram recording medium (hereinafter referred to as a recording disk) is rotatably accommodated. FIG.

  As shown in FIGS. 1 to 3, the cartridge 2 is loaded from the direction of the arrow C into a hologram recording device 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 main body 11 provided with a disk housing portion 3, a light shielding plate 12 attached so as to sandwich the outside of the cartridge main body 11, and a shutter 13 incorporated between the cartridge main body 11 and the light shielding plate 12. And. On the upper and lower surfaces of the light shielding plate 12, substantially rectangular external openings 14 and 15 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. 3, when the shutter 13 moves toward the opening position in the direction of arrow D, the external opening 14 provided in the cartridge body 11 so as to face the external openings 14, 15 together with the external openings 14, 15. , 15 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 the closed position by a built-in shutter spring, and is locked at the closed position by a lock mechanism. To release the lock mechanism, the second lock member 64 protruding into the positioning groove 7 is pushed into the cartridge 2, and in this state, it is exposed from the openings 73 and 72 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 that cannot be released unless a two-step operation is performed, the shutter 13 is not inadvertently opened.

  4 is an exploded perspective view showing the configuration of the cartridge 2, FIG. 5 is a sectional view taken along the line VV in FIG. 4, and FIG. 6 is a sectional view taken along the line VI-VI in FIG. 7A is a sectional view of the cartridge in the loading direction, FIG. 7B is a partially enlarged view of FIG. 7A, FIG. 7C is another enlarged view of FIG. 8A, and FIG. FIGS. 9A and 9B are cross-sectional views in the orthogonal direction, where FIG. 9A is a cross-sectional view with the shutter closed, FIG. 9B is a cross-sectional view with the shutter open, and FIG. 10 and 10 are enlarged views of a portion surrounded by a circle X in FIG.

  As shown in FIG. 4, the cartridge body 11 includes a substantially plate-like first shell 25, a second shell 26 joined to the first shell 25, and the first shell 25 and the second shell 26. The lock mechanism 27 is incorporated and locks the shutter 13.

  The first shell 25 and the second shell 26 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. As shown in FIG. 7C, which is an enlarged cross-sectional view of the edge of the cartridge 2, the inner surface of the first shell 25 is a protrusion formed with a diameter larger than the outer diameter of the recording disk 4. A first light shielding wall 30, a second light shielding wall 31 provided on the outside of the first light shielding wall 30, and a protrusion 32 provided on the entire periphery of the edge are provided. Inside the first light shielding wall 30, an internal opening 18 is provided to expose the central portion 4a of the recording disk 4 and the recording surface 4b to the outside.

  On the inner surface of the second shell 26 is a protrusion formed with a diameter larger than the outer diameter of the recording disk 4, and between the first light shielding wall 30 and the second light shielding wall 31 of the first shell 25. A third light shielding wall 35 to be inserted and a protrusion 36 provided on the entire periphery of the edge are provided. Inside the third light shielding wall 35, 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.

  When the recording disk 4 is placed inside the third light shielding wall 35 of the second shell 26 and the first shell 25 is superposed on the upper surface of the second shell 26, the third light shielding wall 35 is connected to the first light shielding wall 30. Inserted between the second light shielding wall 31 and the tip of the third light shielding wall 35 abuts against the inner surface 25 d of the first shell 25. The disk housing portion 3 is formed by these light shielding walls 30, 31, 35 and the inner surfaces of the first shell 25 and the second shell 26. The side wall of the disk housing portion 3 has a labyrinth-like light shielding structure formed by interposing three light shielding walls 30, 31, 35. Therefore, even if light or dust enters from the joint of the first shell 25 and the second shell 26, they do not enter the disk housing portion 3.

  The tip of the third light shielding wall 35 of the second shell 26 is fixed to the inner surface 25d of the first shell 25 by ultrasonic welding. Thereby, since the 1st shell 25 and the 2nd shell 26 are joined firmly, a gap does not open at the joint of both.

  As shown in FIGS. 4 and 7 to 10, the outer surfaces of the first shell 25 and the second shell 26 are stepped portions that are slightly larger than the shape of the light shielding plate 12 and deeper than the thickness of the light shielding plate 12. Light shielding plate mounting surfaces 25a and 26a having 25d and 26d and offset inward are formed.

  As the material of the light shielding plate 12, for example, an aluminum alloy is used as a material that can obtain light shielding properties, corrosion resistance, decorative properties, and workability, and is lightweight and strong. The light shielding plate 12 may be made of plastic. However, in order to ensure the light shielding property and the slipperiness of the shutter 13, a plastic to which a light shielding material and a lubricant are added may be used.

  As shown in FIGS. 4 to 6, the light shielding plate 12 is formed of an aluminum alloy thin plate with external openings 14 and 15 and a notch 40 for obtaining a moving range of the shutter 13. It is bent so as to be. Thereby, the light shielding plate 12 has the first plate portion 12a and the second plate portion 12b each having the external openings 14 and 15, and the cutout 40, and the first plate portion 12a and the second plate portion 12b. And a third plate portion 12c that is connected to each other.

  Each of the ridgeline part of the 3rd board part 12c, the 1st board part 12a, and the 2nd board part 12b, and two sides of the cartridge 2 in the loading direction C and one side in the direction orthogonal to the loading direction C Incision is made in the intersecting portion so that the outer peripheral end portions of the first plate portion 12a and the second plate portion 12b approach each other (in other words, toward the cartridge main body 11 when attached to the cartridge main body 11). Direction). As a result, a substantially U-shaped bent portion 12d is formed at the outer peripheral ends of the first plate portion 12a and the second plate portion 12b. It is desirable from the viewpoint of light shielding performance that the bent portion 12d is formed on all three sides of the outer peripheral end portion, but is not limited thereto.

  The light shielding plate 12 sandwiches the B surface 2b and the A surface 2a of the cartridge body 11 with the first plate portion 12a and the second plate portion 12b, and the third plate portion 12c in the loading direction C of the cartridge body 11 It is attached to the light shielding plate attachment surfaces 25a and 26a of the cartridge body 11 so as to cover the tip. Since the light shielding plate mounting surfaces 25 a and 26 a are offset inward at a depth greater than the thickness of the light shielding plate 12, the outer surface of the light shielding plate 12 attached to the cartridge body 11 does not protrude from the surface of the cartridge 2. Absent. Further, as shown in FIGS. 7 to 10, the tips of the bent portions 12d of the first plate portion 12a and the second plate portion 12b are stepped portions 25d and 26d of the first shell 25 and the second shell 26, respectively. Located opposite to.

  As shown in FIG. 4, small holes 49 are formed at substantially equal intervals on the outer periphery of the first plate portion 12 a and the second plate portion 12 b of the light shielding plate 12. Further, pins 50 that are slightly longer than the thickness of the light shielding plate 12 are integrally formed on the light shielding plate mounting surfaces 25 a and 26 a of the first shell 25 and the second shell 26 at positions corresponding to the holes 49 of the light shielding plate 12. Has been.

  As shown in FIGS. 7 to 10, when the light shielding plate 12 is attached to the outside of the cartridge body 11 (light shielding plate attachment surfaces 25 a, 26 a), the pins 50 of the first shell 25 and the second shell 26 are inserted into the holes 49. And protrudes from the surface of the light shielding plate 12. The light shielding plate 12 is fixed to the cartridge body 11 by the tip of each pin 50 being crushed by heat while the tip of the bent portion 12d is pressed against the light shielding plate mounting surfaces 25a and 26a against the elastic force. .

  As a result, the front ends of the bent portions 12d of the light shielding plate 12 are positioned to face the step portions 25d and 26d, respectively, and are pressed against the light shielding plate mounting surfaces 25a and 26a by the elastic force of the light shielding plate 12 without any gaps. Touch. That is, the outer peripheral end of the light shielding plate 12 (the tip of each bent portion 12d) and the light shielding plate mounting surfaces 25a and 26a are in close contact with each other with no gap. Furthermore, since the outer peripheral end of the light shielding plate 12 is covered with the step portions 25d and 26d, even if there is a gap partially due to a component accuracy error or the like, the light is reliably prevented from wrapping around the light. .

  In addition, as a method for fixing the light shielding plate 12 to the cartridge body 11, an adhesive, a double-sided tape, screwing, or the like can be used. Further, when the light shielding plate 12 is made of plastic, various types of welding can be used.

  As shown in FIG. 4, the shutter 13 includes a shutter member 55 obtained by bending a light-shielding thin plate so as to be substantially U-shaped, and an elongated plate-like slide member 56 attached to the shutter member 55. . The shutter member 55 is formed of, for example, an aluminum alloy for the same reason as the light shielding plate 12. The shutter member 55 may also be formed of plastic, but it is also preferable to use plastic to which a light-shielding substance and a lubricant are added in order to ensure light-shielding properties and sliding properties. The slide member 56 is formed of a plastic to which a light shielding material and a lubricant are added.

  The shutter member 55 includes a first shutter 55 a inserted between the outer surface of the first shell 25 and the first plate portion 12 a of the light shielding plate 12, and the outer surface of the second shell 26 and the second plate of the light shielding plate 12. The second shutter 55b is inserted between the second shutter 55b, the first shutter 55a and the second shutter 55b, and a continuous portion 55c to which the slide member 56 is attached.

  On the outer surfaces of the first shell 25 and the second shell 26, shutter sliding surfaces 25b and 26b are formed on the inner side of the light shielding plate mounting surfaces 25a and 26a and offset inward at a depth greater than the thickness of the shutter member 55. Has been. Thereby, since the shutter 13 can move smoothly between the cartridge main body 11 and the light shielding plate 12, generation | occurrence | production of the chips etc. by movement can be suppressed. The shutter sliding surfaces 25b and 26b may be roughened in order to diffuse incident light. Similarly, the inner surface of the light shielding plate 12 and the inner and outer surfaces of the shutter 13 may be roughened.

  The slide member 56 is slidably incorporated between the first shell 25 and the second shell 26 so that the upper surface is exposed from the front end surface of the cartridge body 11 in the loading direction. An attachment surface 56 a that is attached to the inner surface of the continuous portion 55 c of the shutter member 55 is provided at the upper end portion of the slide member 56. For example, two pins 56b are integrally formed on the mounting surface 56a, and are inserted into the two holes 55d provided in the connecting portion 55c, and the tip is crushed by heat, whereby the shutter member 55 and The slide member 56 is fixed. Note that an adhesive, a double-sided tape, or the like may be used for this fixing, and various welding may be used when the shutter member 55 is formed of plastic. Further, screwing may be used.

  As shown in FIGS. 7B and 11, a groove 56 c is formed on the side surface of the slide member 56 along the longitudinal direction. The ridges 25c and 26c provided on the inner surfaces of the first shell 25 and the second shell 26 on the front end side in the loading direction are inserted into the groove 56c. By the groove 56c and the protrusions 25c and 26c, the slide member 56 can be slid without being detached from the cartridge main body 11.

  On the other upper surface end portion of the slide member 56, an operated portion 56d that is operated when the shutter 13 is opened is integrally formed. The operated portion 56d is exposed to the shutter member 55 without being hidden by the third plate portion 12c of the light shielding plate 12 by providing the slide member 56 so as to extend in the shutter closing direction. . The cutout 40 in the third plate portion 12c of the light shielding plate 12 is provided to avoid interference with the operated portion 56d when the shutter 13 is moved to the open position (see FIG. 3).

  The shutter 13 is urged in the closing direction by a shutter spring 59. The shutter spring 59 is formed 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 shell 25.

  The slide member 56 is formed with a rectangular groove-shaped locked groove 56e adjacent to the operated portion 56d. An outer side surface of the locked groove 56e in the longitudinal direction of the slide member 56 is an engagement inclined surface (engagement surface) that gradually inclines toward the other end side (shutter closing direction) of the slide member 56 toward the front in the loading direction C of the cartridge 2. 56f is formed (see FIG. 12). Further, a corner portion between the right end surface and the lower surface of the slide member 56 in the drawing is chamfered substantially parallel to the engagement inclined surface 56f to form a guide inclined surface 56g.

  Next, the lock mechanism will be described with reference to FIGS. FIG. 11 is an exploded perspective view showing the configuration of the lock mechanism, FIG. 12 is an operation explanatory view of the lock mechanism shown in FIG. 11, and FIG. 13 is an explanatory view showing an example of various mechanisms for opening the shutter.

  As shown in FIG. 11, the lock mechanism 27 includes a first lock member 63 that locks the shutter 13 in the closed position, a second lock member 64 that locks the movement of the first lock member 63, and a second lock member 64. The lock member 64 includes a lock spring 65 that urges the lock member 64 in the counterclockwise direction and upward in the drawing.

  The first lock member 63 includes a lock claw 63a that engages with a locked groove 56e formed in the slide member 56 and locks the shutter 13 in the closed position, and a rectangular slide integrally provided with the lock claw 63a. The moving part 63b, a cylindrical boss 63c formed on the surface of the sliding part 63b with respect to the second shell 26, and an operation hole 63d formed through the boss 63c and the sliding part 63b. .

  On the left side of the lock claw 63a in the figure, an inclined surface 63e for inviting engagement with the locked groove 56e when the shutter 13 moves from the open position to the closed position is an engagement inclined surface 56f of the slide member 56. It is formed substantially in parallel. Further, on the right side of the lock claw 63a in the drawing, a hook portion 63f that is an inclined surface substantially parallel to the engagement inclined surface 56f of the locked groove 56e is formed, and the slide member 56 is moved in the left direction (shutter 13). When the movement is made in the direction of opening), the hook portion 63f engages with the engagement inclined surface 56f to reliably prevent the movement.

  The second lock member 64 is provided integrally with the link portion 64b having a hole 64a that is rotatably inserted into the outer periphery of the boss 63c of the first lock member 63, and the boss 63c. The rotation part 64c rotates to the center, the pressed piece 64d erected vertically from the side surface of the rotation part 64c, and the spring locking part 64e to which one end of the lock spring 65 is locked.

  As shown in FIG. 12A, the first lock member 63 has a first lock position where the hook portion 63f of the lock claw 63a engages with the engagement inclined surface 56f of the locked groove 56e of the slide member 56. As shown in (C) of the same figure, it is moved between a first release position that slides downward and releases the engagement with the locked groove 56e.

  In the first lock position shown in FIG. 12A, the right end of the hook 63f of the lock claw 63a and the left end of the engagement inclined surface 56f of the locked groove 56e are on the same vertical line, or It is arranged with a slight gap in the horizontal direction. In other words, in this state, the hook portion 63f and the engagement inclined surface 56f are not engaged, and the first lock member 63 is movable downward.

  However, when the slide member 56 slightly moves in the left direction in the figure, the engagement inclined surface 56f reliably engages with the hook portion 63f to prevent the slide member 56 from moving. When the slide member 56 moves leftward, the shutter 13 also moves in the opening direction, but the moving distance until the engagement inclined surface 56f engages with the hook portion 63f is the cartridge body around the inner openings 18 and 19. 11 is much smaller than the overlap amount between the shutter 13 and the shutter 13, and the internal openings 18, 19 are not opened.

  As shown in FIG. 2A, the second lock member 64 is biased by the lock spring 65 to be in a vertical state, and the second lock member 64 projects the pressed piece 64d from the notch 67 in the positioning groove 7. As shown in FIG. 5B, the second movable position is moved between the second release position that rotates clockwise in the drawing.

  On the inner surface of the first shell 25, a rectangular sliding frame 69 into which the sliding portion 63b of the first locking member 63 is slidably inserted in the vertical direction, and a rotating portion 64c of the second locking member 64 are provided. And a boss 71 to which the other end of the lock spring 65 is locked is formed. Yes. The sliding frame 69 is formed with an opening 72 that exposes the operation hole 63 d of the first lock member 63 from the outer surface of the first shell 25 to the outside. Similarly, the second shell 26 is formed with an opening 73 that exposes the operation hole 63 d to the outside at a position facing the opening 72.

  FIG. 12A shows the state of the lock mechanism 27 of the cartridge 2 when not in use. Since the second lock member 64 is biased upward by the lock spring 65, the lock claw 63 a of the first lock member 63 enters the locked groove 56 e of the slide member 56. Accordingly, when the shutter 13 is slid from the closed position to the open position, the engagement inclined surface 56f of the locked groove 56e and the hook portion 63f of the lock claw 63a are not engaged and the shutter 13 does not slide. . The engaging inclined surface 56f and the hook portion 63f are shaped such that the inclined direction of the engaging inclined surface 56f and the hook portion 63f are further engaged with each other when the slide member 56 moves in the direction to open the shutter 13. The engagement force is further increased when the slide member 56 is moved, the movement of the slide member 56 is reliably prevented, and the shutter 13 is locked in the closed position.

  Further, even if an attempt is made to insert a rod or the like into the operation hole 63d of the first lock member 63 through the openings 72 and 73 provided in the first shell 25 and the second shell 26, the second lock member 64 is slid. Since the bottom surface of the abutment comes into contact with the regulating piece 70, the lock is not released.

  As shown in FIG. 13, in the hologram recording device (driving device) used with the cartridge 2 loaded, for example, a pair of positioning members 77a and 77b and a lock release for operating the first lock member 63 are used. A mechanism 78 and a shutter slide mechanism 80 for sliding the shutter 13 between an open position and a closed position are incorporated. The pair of positioning members 77a and 77b 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 the direction orthogonal to the insertion direction.

  The lock release mechanism 78 slides the engagement pin 79a inserted into the operation hole 63d of the first lock member 63 from the opening 73 of the cartridge 2 and the engagement pin 79a in the unlocking direction of the first lock member 63. And a slide mechanism. 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 27 is reversed left and right. Therefore, the lock release mechanism 78 includes an engagement pin 79b for reverse loading so that the cartridge 2 can be engaged with the operation hole 63d even when the cartridge 2 is reversed and loaded. The engaging pins 79a and 79b are simultaneously moved in the arrow direction. In addition, when one engagement pin is engaged with the operation hole 63d, the other engagement pin becomes an obstacle, so that the engagement pins 79a and 79b are retracted when contacting the cartridge 2. It is good to.

  The shutter slide mechanism 80 includes an operation piece 80 a that contacts the outside of the operated portion 56 d of the slide member 56 and a slide mechanism that slides the operation piece 80 a in the sliding direction of the shutter 13. The shutter slide mechanism 80 is also provided with another operation piece 80b to cope with the reverse insertion of the cartridge 2, and the operation pieces 80a and 80b are simultaneously moved in the direction of the arrow.

  When the cartridge 2 is loaded in the hologram recording apparatus, the positioning member 77a is inserted into the positioning groove 7 as shown in FIG. Further, an engagement pin 79a of the lock release mechanism 78 provided in the apparatus is inserted into the operation hole 63d of the first lock member 63, and the operation piece 80a of the shutter slide mechanism 80 is operated by the operated portion 56d of the slide member 56. It is arranged outside. The positioning member 77 a presses the pressed piece 64 d of the second lock member 64 against the urging force of the lock spring 65. The second lock member 64 rotates clockwise around the link portion 64b, and the bottom surface of the rotation portion 64c is separated from the restricting piece 70, so that the first lock member 63 can be slid downward. Become.

  As shown in FIG. 5C, the lock release mechanism 78 slides the engagement pin 79a in the release direction, and removes the lock claw 63a from the locked groove 56e to release the engagement. Thereafter, the shutter 13 is opened by the shutter slide mechanism 80 sliding the operation piece 80a in the leftward opening direction in the figure. Thus, since the lock mechanism 27 is not released unless the second lock member 64 is rotated and the first lock member 63 is further slid, the shutter 13 is effectively prevented from being inadvertently opened. Can be prevented.

Second Embodiment
In the first embodiment, the second lock member is rotated. However, the second lock member may be slid in the same manner as the first lock member. A lock mechanism that allows the second lock member to slide will be described with reference to FIGS. 14 and 15. FIG. 14 is an exploded perspective view showing the configuration of the locking mechanism, and FIG. 15 is an operation explanatory view of the locking mechanism shown in FIG. In addition, since it is the same as that of 1st Embodiment except a locking mechanism, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.

  As shown in FIG. 14, the slide member 156 has a rectangular hole-shaped recess 156e adjacent to the operated portion 156d. The right side surface of the recess 156e in the drawing is formed with an engaging inclined surface (engaging portion) 156f that gradually inclines in the shutter closing direction toward the front in the cartridge loading direction. Further, a guide inclined surface 156g chamfered substantially parallel to the engaging inclined surface 156f is formed at a corner portion between the right end surface and the lower surface of the slide member 156 in the drawing.

  The lock mechanism 127 includes a first lock member 163 that locks the shutter in the closed position, a second lock member 164 that locks the movement of the first lock member 163, and the first lock member 163 upward in the figure. A lock spring 165 that urges and urges the second lock member 164 toward the right in the drawing is configured.

  The second lock member 164 is incorporated in the slide frame 102 provided in the first shell 125 and is slidable in the lateral direction. The second lock member 164 protrudes to the outside from a notch 167 provided in the positioning groove 107 with a tip 164a formed in an arc shape. In addition, a regulation protrusion 164b is integrally provided at the rear end of the second lock member 164.

  The first lock member 163 is incorporated in the slide frame 102 so as to be superimposed on the second lock member 164 and is slidable in the vertical direction. At the tip of the first lock member 163, a lock piece 163 a that engages with the recess 156 e of the slide member 156 to lock the shutter, an operation hole 163 b that is exposed to the outside from the opening 172, and a second lock member 164. And fitting grooves 163c and 163d.

  In the upper left corner of the lock piece 163a in the drawing, an inclined surface 163e for inviting engagement with the recess 156e when the shutter moves from the open position to the closed position is provided with the engagement inclined surface 156f of the slide member 156. It is formed substantially in parallel. Further, on the right side of the lock piece 163a in the drawing, a hook portion 163f that is an inclined surface substantially parallel to the engaging inclined surface 156f of the recess 156e is formed, and the slide member 156 is moved to the left in the drawing (the direction in which the shutter opens). ), The engaging inclined surface 156f engages with the hook portion 163f to reliably prevent the movement. The first lock member 163 and the second lock member 164 are urged upward and rightward by a lock spring 165 inserted into the pin 110, respectively.

  As shown in FIG. 15A, when the cartridge is not used, the tip 164 a of the second lock member 164 protrudes from the notch 167 into the positioning groove 107 by the bias of the lock spring 165. At this time, the restricting protrusion 164b of the second lock member 164 is fitted into the fitting groove 163c of the first lock member 163 to prevent the first lock member 163 from sliding downward.

  As shown in FIG. 5B, when the cartridge is loaded into the hologram recording device or the like, the tip 164a is pushed by the positioning member 177 inserted into the positioning groove 107, and the second lock member 164 is placed inside the cartridge. The restricting protrusion 164b comes out of the fitting groove 163c. As a result, the first lock member 163 can slide downward.

  As shown in FIG. 6C, when the lock release mechanism slides the engagement pin 179 engaged with the operation hole 163b downward, the first lock member 163 is moved to the second position by the fitting groove 163d. It slides downward while avoiding contact with the lock member 164. Accordingly, the lock piece 163a comes out of the recess 156e of the slide member 156, so that the shutter can be moved. The operation member 180 of the shutter slide mechanism presses the operated portion 156d of the slide member 156 to open the shutter.

  Also in the 127 lock mechanism of this embodiment, the shapes of the engagement inclined surface 156f and the hook portion 163f are engaged with each other when the slide member 156 moves in the direction in which the shutter opens, and the engagement force is further strengthened to firmly engage. Since it is inclined in the direction, the opening of the shutter is reliably prevented. Also, since a two-stage operation is required to unlock the shutter, it is possible to prevent the shutter from being inadvertently opened.

<Third Embodiment>
In each of the above-described embodiments, a two-stage operation is performed to release the shutter lock mechanism. However, when the operation part to be unlocked is provided in a part that is not easily operated by mistake, it can be released by a single operation. You may do it. A lock mechanism according to a third embodiment that can be unlocked by one operation will be described with reference to FIGS. 16 and 17. 16 is an exploded perspective view showing the configuration of the lock mechanism, and FIG. 17 is an operation explanatory view of the lock mechanism shown in FIG. In addition, since it is the same as that of 1st Embodiment except a locking mechanism, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.

  As shown in FIG. 16, the slide member 256 is formed with a rectangular hole-shaped recess 256e adjacent to the operated portion 256d. The right side surface of the recess 256e in the drawing is formed with an engaging inclined surface (engaging portion) 256f that gradually inclines in the shutter closing direction toward the front in the cartridge loading direction. Further, a corner portion between the right end surface and the lower surface in the drawing of the slide member 256 is formed with a guide inclined surface 256g chamfered substantially parallel to the engaging inclined surface 256f.

  The lock mechanism 227 includes a first lock member 263 that locks the shutter in the closed position, a second lock member 264 that locks the movement of the first lock member 263, and the first lock member 263 upward in the figure. A lock spring 265 that urges and urges the second lock member 264 in the right direction in the drawing is configured.

  The second lock member 264 is incorporated in a slide frame 202 provided in the first shell 225 and is slidable in the lateral direction. The second lock member 264 protrudes to the outside from a notch 267 provided in the positioning groove 207 with the tip 264a formed in an arc shape. Further, a notch 264b and an elongated hole 264c formed obliquely are integrally provided at the rear end of the second lock member 264.

  The first lock member 263 is incorporated in the slide frame 202 so as to overlap the second lock member 264 and is slidable in the vertical direction. The front end 263a of the first lock member 263 engages with the recess 256e of the slide member 256 to lock the shutter. At the rear end of the first lock member 263, a notch 263b that overlaps the notch 264b of the second lock member 264 and a link pin 263c that is inserted into the elongated hole 264c are formed.

  On the left side of the tip 263a in the drawing, a slope 263e for inviting engagement with the recess 256e when the shutter moves from the open position to the close position is formed substantially parallel to the engagement inclined surface 256f of the slide member 256. Has been. Further, a hook portion 263f, which is an inclined surface substantially parallel to the engaging inclined surface 256f of the recess 256e, is formed on the right side of the tip 263a in the drawing, and the slide member 256 moves in the left direction (the direction in which the shutter opens) in the drawing. When the movement is performed, the engagement inclined surface 256f is engaged with the hook portion 263f to reliably prevent the movement. The first lock member 263 and the second lock member 264 are urged upward and rightward by a lock spring 265 inserted into the pin 210, respectively.

  As shown in FIG. 17A, when the cartridge is not used, the tip 264a of the second lock member 264 protrudes from the notch 267 into the positioning groove 207 by the bias of the lock spring 265. At this time, the elongated hole 264 c of the second lock member 264 presses the link pin 263 c of the first lock member 263, and the tip 263 a is engaged with the recess 256 e of the slide member 256.

  As shown in FIG. 5B, when the cartridge is loaded into the hologram recording device or the like, the tip 264a is pushed by the positioning member 277 inserted into the positioning groove 207, and the second lock member 264 is pushed into the cartridge. It is. At this time, the long hole 264c presses the link pin 263c to slide the first lock member 263 downward. As a result, the distal end 263a comes out of the recess 256e of the slide member 256, so that the shutter can be moved. The operation member 280 of the shutter slide mechanism presses the operated portion 256d of the slide member 256 to open the shutter.

  Also in the lock mechanism 227 of this embodiment, the shapes of the engagement inclined surface 256f and the hook portion 263f are inclined in a direction in which they are engaged with each other and more firmly engaged when the slide member 256 moves in the shutter opening direction. Therefore, the opening of the shutter is surely prevented. Further, in this lock mechanism 227, by providing an operated portion for releasing the lock mechanism in a portion of the positioning groove 207 that is difficult to operate from the outside of the cartridge, it is possible to prevent the shutter from being inadvertently opened. .

<Fourth embodiment>
In each of the first to third embodiments, the engagement inclined surface of the slide member and the hook portion of the lock member are opposed to each other with a slight gap at the shutter closed position (not engaged). The slide member is engaged when it slightly moves in the shutter opening direction. If the overlap between the opening of the cartridge body and the shutter cannot be sufficiently taken, the slight movement of the shutter may be a problem. A lock mechanism according to a fourth embodiment in which the engagement inclined surface and the hook portion are already engaged at the shutter closing position will be described with reference to FIGS. 18 and 19. 18 is an exploded perspective view showing the configuration of the lock mechanism, and FIG. 19 is an operation explanatory view of the lock mechanism shown in FIG. In addition, since it is the same as that of 1st Embodiment except a locking mechanism, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.

  As shown in FIG. 18, the slide member 356 has a locked groove 356e having a rectangular hole shape adjacent to the operated portion 356d. The right side surface of the locked groove 356e in the drawing is formed with an engagement inclined surface (engagement portion) 356f that gradually inclines in the shutter closing direction toward the front in the cartridge loading direction. Further, a guide inclined surface 356g chamfered substantially parallel to the engaging inclined surface 356f is formed at a corner portion between the right end surface and the lower surface of the slide member 356 in the drawing.

  The lock mechanism 327 includes a first lock member 363 that locks the shutter in the closed position, a second lock member 364 that locks the rotation of the first lock member 363, and the first lock member 363 in the figure. The first lock spring 365 urges in the direction, and the second lock spring 366 urges the second lock member 364 upward in the figure.

  The first lock member 363 includes a lock claw 363a that engages with a locked groove 356e formed in the slide member 356 and locks the shutter in the closed position, and a rectangular main body portion integrally provided with the lock claw 363a. 363b and a shaft portion 363c formed integrally with the main body portion 363b. The shaft portion 363 c is fitted in a through hole 327 of a boss 326 formed on the inner surface of the first shell 325. The first lock spring 365 is inserted into the boss 326, one end is locked to the boss 371, and the other end is locked to the left side surface of the main body portion 363 b of the first lock member 363. The lock member 363 is urged clockwise in the drawing.

  For example, a trident releasing engagement portion 363d is formed at the tip of the shaft portion 363c (see FIG. 19). Three engagement pins 381a provided on a release jig 381 are engaged with the release engagement portion 363d to rotate the first lock member 363 counterclockwise.

  On the left side of the lock claw 363a in the drawing, an inclined surface 363e for inviting engagement with the locked groove 356e when the shutter moves from the open position to the closed position is substantially the same as the engagement inclined surface 356f of the slide member 356. They are formed in parallel. Further, on the right side of the lock claw 363a in the drawing, a hook portion 363f that is an inclined surface substantially parallel to the engaging inclined surface 356f of the locked groove 356e is formed, and is engaged with the engaging inclined surface 356f to slide. The movement of the member 356 is prevented.

  The second lock member 364 is a substantially rectangular member, and a U-shaped groove 364a having a groove width slightly larger than the width of the main body portion 363b of the first lock member 363 is formed at the upper end of the main body 364c. A spring locking portion 364e to which one end of the second lock spring 366 is locked and a pressed piece 364d erected perpendicularly from the side surface of the main body 364c are formed.

  The second lock member 364 is sandwiched between a pair of slide guides 370 provided in the first shell 325 and is incorporated so as to be slidable in the vertical direction. Further, the U-shaped groove 364 a of the second lock member 364 is fitted to the lower end portion of the main body portion 363 b of the first lock member 363 and prevents the first lock member 363 from rotating. A second lock spring 366 is engaged with the spring engagement portion 364e and the boss 373 of the second lock member 364, and the second lock member 364 is biased upward.

  FIG. 19A shows a state of the lock mechanism 327 when not in use. Since the first lock member 363 is urged clockwise by the first lock spring 365, the lock claw 363 a of the first lock member 363 enters the locked groove 356 e of the slide member 356, and the first lock member 363 is biased clockwise. The hook portion 363f of the lock member 363 engages with the engagement inclined surface 356f of the slide member 356, and the shutter is locked in the closed position. The inclination direction of the engagement inclined surface 356f and the hook portion 363f is shaped so that the engagement force is further increased when the slide member 356 moves in the shutter opening direction, so that the movement of the slide member 356 is surely prevented. Is done.

  In addition, even if a rod or the like is inserted into the through hole 327 of the first shell 325 to rotate the first lock member 363, the lower end portion of the first lock member 363 is the center of the second lock member 364. Since it is fitted in the groove 364a, it does not rotate and the lock is not released.

  When the cartridge 2 is loaded into the hologram recording apparatus, the positioning member 377 is inserted into the positioning groove 307 as shown in FIG. Further, the engagement pin 381a of the release jig 381 of the lock release mechanism provided in the apparatus engages with the release engagement portion 363d. The positioning member 377 pushes the pressed piece 364d of the second lock member 364 against the urging force of the second lock spring 366. The second lock member 364 is guided by the pair of slide guides 370 and moves downward, and the first lock member 364a is released to disengage the lower end portion of the first lock member 363 from the U-shaped groove 364a. 363 can be rotated counterclockwise.

  As shown in FIG. 5C, the release jig 381 rotates, and the first lock member 363 is rotated counterclockwise against the biasing force of the first lock spring 365, and the hook portion 363f and The engagement with the engagement inclined surface 356f is released. The operation member 380 of the shutter slide mechanism presses the operated portion 356d of the slide member 356 to open the shutter.

  In the lock mechanism 327 of this embodiment, the shapes of the engagement inclined surface 356f and the hook portion 363f are inclined in a direction in which the slide member 356 is engaged with each other and more firmly engaged when the slide member 356 moves in the shutter opening direction. Therefore, the opening of the shutter is surely prevented. Further, in this lock mechanism 327, the engagement inclined surface 356f and the hook portion 363f are completely engaged in the closed position, so that the shutter does not move even slightly.

  Although ultrasonic welding is used for fixing the first shell and the second shell, other welding methods and fixing methods may be used. For example, when fixing with a screw or the like, it is preferable to form a light shielding structure around the screw hole. Moreover, although the second shell and the first shell are configured by one component, a plurality of components may be combined and formed. For example, if it is configured with two parts with the shutter housing portion as a boundary, the mold can be simplified.

  Further, the cartridge containing the recording disk capable of recording on both sides is taken out as an example, but the cartridge may be adapted to the recording disk recorded on one side. 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 be applied to a cartridge for accommodating other photosensitive recording media.

It is a perspective view which shows the external appearance shape of the cartridge which implemented this invention. It is an external appearance perspective view which shows the surface on the opposite side of a cartridge. It is an external appearance perspective view which shows the shutter open state of a cartridge. It is a disassembled perspective view which shows the structure of a cartridge. It is a VV arrow sectional view in FIG. It is VI-VI arrow sectional drawing in FIG. 4A and 4B are cross-sectional views in the loading direction of the cartridge, where FIG. 5A is an overall view, FIG. 4A and 4B are cross-sectional views in a direction orthogonal to the cartridge loading direction, where FIG. 4A is a cross-sectional view with the shutter closed, and FIG. 4B is a cross-sectional view with the shutter opened. FIG. 9 is an enlarged view of a portion surrounded by a circle IX in FIG. 8. FIG. 9 is an enlarged view of a portion surrounded by a circle X in FIG. 8. FIG. 4 is an exploded perspective view illustrating a configuration of a lock mechanism according to the first embodiment. 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 exploded perspective view concerning a 2nd embodiment and showing the composition of a lock mechanism. It is operation | movement explanatory drawing of the locking mechanism shown in FIG. It is an exploded perspective view concerning a 3rd embodiment and showing the composition of a lock mechanism. It is operation | movement explanatory drawing of the locking mechanism shown in FIG. FIG. 10 is an exploded perspective view illustrating a configuration of a lock mechanism according to a fourth embodiment. It is operation | movement explanatory drawing of the locking mechanism shown in FIG.

Explanation of symbols

2 Cartridge (Photosensitive recording medium cartridge)
4 Recording disk (photosensitive recording medium, hologram recording medium)
4a Center of photosensitive recording medium 4b Recording surface of photosensitive recording medium 11 Cartridge body 13 Shutter 18 Internal opening (opening)
19 Internal opening (opening)
56 slide member 56f engagement inclined surface (engagement portion)
56g Chamfered portion 63 Lock member 63e Slope 63f Hook portion (locking portion)

Claims (10)

A disc-shaped photosensitive recording medium; a cartridge main body that rotatably accommodates the photosensitive recording medium; and an opening that exposes the center and recording surface of the photosensitive recording medium to the outside; and an outer side of the cartridge main body. For a photosensitive recording medium, comprising: a shutter that is incorporated so as to be movable between a closed position that closes the opening and an open position that opens the opening; and a lock member that locks the shutter in the closed position. A cartridge,
The lock member is formed with a hook portion which is an inclined surface formed so as to incline in the closing direction of the shutter, and the shutter is formed substantially parallel to the hook portion, and the shutter is in the closed position. A cartridge for a photosensitive recording medium, wherein an engagement inclined surface that engages with the hook portion in a state is formed.   The lock member is formed with an inclined surface that is gradually inclined in the closing direction of the shutter toward the front in the insertion direction of the photosensitive recording medium cartridge at an upper side corner on the side in the opening direction of the shutter. The cartridge for photosensitive recording media according to claim 1.   3. The photosensitive recording medium cartridge according to claim 1, wherein a chamfered portion is formed at a lower corner portion on a side surface of the shutter in the closing direction.   The photosensitive recording medium cartridge according to any one of claims 1 to 3, wherein the photosensitive recording medium is a hologram recording medium. A disc-shaped photosensitive recording medium; a cartridge main body that rotatably accommodates the photosensitive recording medium; and an opening that exposes the center and recording surface of the photosensitive recording medium to the outside; and A shutter that is incorporated and closed between a closed position that closes the opening and an open position that opens the opening; and a lock member that locks the shutter in the closed position. A hook portion, which is an inclined surface formed so as to incline in the closing direction of the shutter, is formed, the shutter is formed substantially parallel to the hook portion, and the hook portion is in a state where the shutter is in the closed position. A drive device for performing recording and reproduction on a photosensitive recording medium cartridge formed with an engaging inclined surface to be engaged,
A drive device comprising: an unlock mechanism for operating the lock member; and a shutter slide mechanism for sliding the shutter between an open position and a closed position.   The drive device according to claim 5, wherein the lock release mechanism includes a pair of lock release pins that slide the lock member in a lock release direction.   The drive device according to claim 5, further comprising a positioning member that engages with a positioning groove provided on a side surface of the cartridge main body.   The drive device according to any one of claims 5 to 7, further comprising a shutter slide mechanism that opens and closes the shutter.   The drive device according to any one of claims 5 to 8, wherein the lock release pin is movable in a release direction.   The drive device according to claim 6, wherein one of the pair of lock release pins releases the front lock member and the other abuts the cartridge main body to retract in the cartridge insertion direction.

Images