JP2006099961A - Cartridge holder device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily attach a cartridge holder to a chassis, and to simplify the mechanism thereof. <P>SOLUTION: There are provided a pair of axial parts provided to the chassis 2 consisting of one axial part 32, having a circular cross section and the other axial part 33 having an elliptic cross section; the cartridge holder 1 which is provided with a first engaging hole 28, engaged with the one axial part 32 and a second engaging hole 29, having a continuously formed cutout part 37 and engaged with the other axial part 33 and which is turnably attached to the chassis 2; a regulation part 36 provided to the side wall on which the second engagement hole 29 of the cartridge holder 1 is formed; and a locking part 38 formed on a side edge of the chassis 2 and for locking the regulation part 36. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cartridge holder device having a cartridge holder rotatably attached to a chassis.

  There has been proposed a recording and / or reproducing apparatus using a disk cartridge in which an information signal such as an optical disk or a magneto-optical disk is recorded or a disk on which a recorded signal is rotatably stored. This recording and / or reproducing apparatus is provided with a cartridge holder for holding a disk cartridge. The cartridge holder has a position at which the disk cartridge can be inserted and removed, and a recording and / or reproducing position for recording and / or reproducing information signals with respect to the disk stored in the disk cartridge held by the cartridge holder. It is attached to the chassis so as to be able to rotate between.

  For example, as shown in FIG. 6, the rotation mechanism 100 that supports the cartridge holder so as to be rotatable relative to the chassis holds the disk cartridge and the chassis 101 to which the disk table 104 constituting the disk rotation operation mechanism is attached. A device composed of the cartridge holder 102 is considered. When the disk cartridge is loaded, the cartridge holder 102 is opened in a state of being rotated upward with respect to the chassis 101 and rotated in a direction in which the cartridge holder 102 is closed with respect to the chassis 101 after the disk cartridge is inserted. Moved.

  The chassis 101 is formed in a rectangular shape slightly larger than the planar shape of the disk cartridge, and a disk rotation operation mechanism is configured with a motor (not shown) at the center, and a disk table 104 rotated by the motor is disposed. Has been. At one corner portion on the rear side of the chassis 101, a support piece 105 that supports the holder so as to freely rotate is formed. A support shaft 106 protrudes from one side surface of the support piece 105.

  The cartridge holder 102 includes a top plate portion 107 that faces the flat surface of the disk cartridge, and a pair of side walls 108a and 108b that are formed to rise on opposite sides of the top plate portion 107. The top plate portion 107 and the side walls 108a and 108b constitute a cartridge housing portion 109. The top plate portion 107 and the side walls 108 a and 108 b regulate the movement of the disk cartridge in the cartridge storage portion 109. Support pieces 110a and 110b are provided at one end of the side walls 108a and 108b of the cartridge holder 102. The support pieces 110a and 110b are provided with shaft insertion holes 111a and 111b.

  A support member 112 is fixed by a screw 113 to the other corner portion of the rear surface side of the chassis 101 facing the above-described support piece 105. The support member 112 includes a mounting plate 115 in which a screw hole 114 is drilled, a support plate 116 that is formed to rise from one end of the mounting plate 115, and a support shaft 117 that protrudes from one side surface of the support plate 116. With. In the support member 112 configured as described above, first, the support shaft 117 is inserted into the shaft insertion hole 111 b of the support piece 110 b of the cartridge holder 102, and then the screw hole 118 drilled in the chassis 101 and the support member 112. The screw 113 is screwed into the screw hole 114 and fixed.

  In addition to the cartridge holder rotation mechanism 100 described above, for example, a cartridge holder rotation mechanism 120 as shown in FIG. 7 has been proposed. The rotating mechanism 120 includes a chassis 121 and a cartridge holder 122 that holds a disk cartridge. When loading a disk cartridge into the cartridge holder 122, the cartridge holder 122 is rotated upward in a direction away from the chassis 121, and after the loading of the disk cartridge into the cartridge holder 122 is finished, the chassis The cartridge 121 is rotated in the closing direction of 121, that is, in the direction in which the cartridge holder 122 approaches the chassis 121.

  The chassis 121 is formed to be slightly larger than the planar shape of the disk cartridge, and a disk table 124 constituting a disk rotation operation mechanism is disposed at the center thereof. The chassis 121 is provided with a pair of support pieces 125a and 125b that rotatably support the cartridge holder 122 on both sides on the back side. Support shafts 126a and 126b project from one side surface of the support pieces 125a and 125b. One support shaft 126a projects from the support piece 125a toward the inside of the chassis 121, and the other support shaft 126b projects from the support piece 126b toward the outside of the chassis 121.

  The cartridge holder 122 includes a top plate portion 127 that faces the flat surface of the disk cartridge, and a pair of side walls 128a and 128b that are formed on both sides of the top plate portion 127 that face each other. The side walls 128a and 128b constitute a cartridge storage portion 129. The top plate portion 127 and the side walls 128a and 128b regulate the movement of the disk cartridge within the cartridge storage portion 129. Support pieces 130a and 130b are provided at one ends of the side walls 128a and 128b of the cartridge holder 122, respectively. These support pieces 130a and 130b are provided with shaft insertion holes 131a and 131b.

  In the cartridge holder turning mechanism 120 configured as described above, first, the support shafts 126 a and 126 b provided on the support pieces 125 a and 125 b of the chassis 121 are inserted into the shaft insertion holes provided on the support pieces 130 a and 130 b of the cartridge holder 122. 131a and 131b are inserted. Thereafter, the washer 133 is inserted into the tip of one of the support shafts 126b, so that the cartridge holder 122 is rotatably attached to the pair of support pieces 125a and 125b.

  When the cartridge holders 102 and 122 are attached to the chassis 101 and 121, the cartridge holder turning mechanisms 100 and 120 described above use a support member 112 and a washer 133 as separate attachment members. Therefore, the cartridge holder opening / closing mechanisms 100 and 120 require time for assembly and cannot increase production efficiency. Since the cartridge holder rotating mechanisms 100 and 120 use the support member 112 and the washer 133 separately when the cartridge holders 102 and 122 are attached, it is difficult to stably attach the cartridge holders 102 and 122 due to variations in individual parts. Met.

  An object of the present invention is to provide a cartridge holder device that solves the problems of the cartridge holder device described above.

  A cartridge holder device according to the present invention proposed to achieve the above-described object includes a chassis, one shaft portion having a circular cross section and the other shaft portion having a circular cross section provided in the chassis. A pair of shaft portions, a first engagement hole that engages with the one shaft portion, and a second engagement hole that is continuously formed with a notch and engages with the other shaft portion. A cartridge holder rotatably attached to the chassis, a restricting portion provided on a side wall in which a second engagement hole of the cartridge holder is formed, and a restriction formed on a side edge of the chassis. A locking portion for locking the portion.

  In the present invention, it is desirable that the width of the notch is wider than the minor axis of the other shaft portion forming the ellipse and narrower than the major axis of the other shaft portion of the elliptical stepped circle.

  The locking portion is formed in a notch portion formed in the chassis, and further formed on a peripheral wall of the notch portion, and when the cartridge holder moves in a direction away from the chassis, Protrusions that abut are provided.

  Furthermore, the projecting portion further includes an inclined portion that descends outward from the inside of the chassis.

  The present invention further includes recording and / or reproducing means for recording and / or reproducing with respect to the cartridge held by the cartridge holder in the chassis, and the locking portion includes the recording and / or reproducing means. Formed on the lower side of the upper surface of the chassis to be disposed, the restricting portion protrudes downward from the cartridge holder and is formed to be parallel to the main surface of the cartridge holder, and the cartridge holder is When moving in a direction away from the chassis, it is locked to the locking portion.

  A cartridge holder device according to the present invention is formed in a cartridge holder, and is cut out with a width that is wider than the short axis of the other shaft portion that forms an ellipse and narrower than the major axis of the other shaft portion that forms an ellipse. The second engagement hole that engages with the other shaft part, which is partially opened by the, and the side wall in which the second engagement hole of the cartridge holder is formed, and is locked by the locking part of the chassis. By providing the restricting portion, it is possible to reliably prevent the cartridge holder from being detached from the chassis.

  Further, the number of parts can be reduced, so that the production efficiency can be improved and the production cost can be reduced. Further, according to the present invention, the number of parts is reduced, so that the reference member when the cartridge holder is attached to the chassis is reduced, and the attachment accuracy of the cartridge holder to the chassis can be improved.

  Hereinafter, a cartridge holder device according to the present invention will be described in detail with reference to the drawings.

  In the following description, an example in which the present invention is applied to a cartridge holder device of a recording and / or reproducing device using a disk cartridge will be described.

  First, the disk cartridge 50 loaded in the cartridge holder 1 of the cartridge holder device according to the present invention will be described. As shown in FIG. 1, the disk cartridge 50 has a cartridge body 51 and a shutter 52. An optical disk D such as a magneto-optical disk is rotatably accommodated in the cartridge body 51. A central opening on the lower surface side of the cartridge main body 51 is provided with a first opening (not shown) that forms a circle for allowing a disk table (described later) to enter the cartridge main body 51. Further, on the upper surface and the lower surface of the cartridge main body 51, a second light beam (not shown) for irradiating the optical disk D with a light beam from an optical pickup device provided on a chassis, which will be described later, extends from near the center to one side surface. An opening and a third opening are provided. These second and third openings are opened and closed by a shutter 52. The shutter 52 is formed using a metal material such as stainless steel so as to have a U-shaped cross section. The shutter 52 is attached to the cartridge body 51 so as to be movable along one side surface of the cartridge body 51. The shutter 52 is locked at a position for closing the second and third openings described above by a lock member (not shown) disposed in the cartridge main body 51. The lock of the shutter 52 by the lock member is released by a shutter release member described later when the disk cartridge 50 is inserted into the holder 1. A shutter opening member (to be described later) enters the side surface of the cartridge body 51 where the shutter 52 moves, and a shutter opening groove 51 a for moving the shutter 52 is formed substantially over the entire length of the side surface of the cartridge body 51. An erroneous insertion prevention groove 51b is formed on a side surface of the cartridge body 51 that is parallel to the side surface on which the shutter opening groove 51a is formed. The erroneous insertion preventing groove 51b is formed shorter than the length of the shutter opening groove 51a. As a result, when the disc cartridge 50 is inserted into the cartridge holder 1 with the front and back reversed from the normal insertion state, the shutter opening member enters the erroneous insertion prevention groove 51b, and the disc cartridge 50 is placed in the holder 1. When a predetermined amount is inserted, the shutter opening member comes into contact with the inner end of the erroneous insertion preventing groove 51b, and further insertion of the disc cartridge 50 into the cartridge holder 1 is restricted.

  The optical disk D accommodated in the disk cartridge 50 formed in this way is a recordable disk such as a magneto-optical disk or a read-only optical disk. The optical disc D has a diameter of approximately 64 mm, for example, and is formed so that the thickness of the portion irradiated with the light beam from the optical pickup device is 1.2 mm. Further, the optical disk D has a chucking metal plate (not shown) attached to the center thereof. This metal plate for chucking is attracted by a magnet arranged on the disk table.

  The cartridge holder 1 in which the disk cartridge 50 configured as described above is inserted and held is inserted into the cartridge holder 1 at an upper position away from the chassis 2 where the disk cartridge 50 is inserted into and discharged from the cartridge holder 1. The held disk cartridge 50 is positioned by a positioning mechanism (not shown) of the chassis 2 and is rotated and moved between a lower position adjacent to the chassis 2. The rotation operation between the upper position and the lower position of the cartridge holder 1 is performed in conjunction with the opening / closing operation of the lid of the recording and / or reproducing apparatus.

  The cartridge holder 1 is formed in a substantially rectangular shape that is slightly larger than the planar shape of the disk cartridge 50, as shown in FIG. The cartridge holder 1 is formed using a metal material such as stainless steel. The cartridge holder 1 has a main surface 15 opposite to the plane of the disk cartridge 50, and a pair of side walls 16 a and 16 b are provided on both opposite sides of the main surface 15 so as to be substantially perpendicular to the main surface 15. It has been. A pair of holding portions 17 a and 17 b are formed on the front end sides of the side walls 16 a and 16 b so as to be parallel to the main surface 15. The main surface 15, the side walls 16a and 16b, and the holding portions 17a and 17b restrict the movement of the disk cartridge 50 inserted into the cartridge holder 1 in the storage portion 18.

  As shown in FIG. 1, a plurality of holes 19 are formed in the main surface 15 of the cartridge holder 1. These holes 19 are formed through a window formed in the outer casing of the disk cartridge 50 loaded in the apparatus when the cartridge main body 1 is attached to the outer casing of the recording / reproducing apparatus. It is formed to make it visible and to reduce the weight of the cartridge holder 1. These holes 19 are also used as mounting holes for mounting various components such as a magnetic head for applying a vertical magnetic field as an external magnetic field when the optical disk D is a magneto-optical disk.

  The side walls 16a and 16b formed on opposite sides of the main surface 15 are formed to have a height that is slightly larger than the thickness of the disk cartridge 50 to be loaded. A shutter opening member 21 is attached to one side wall 16a. The shutter opening member 21 moves the shutter 52 of the disk cartridge 50 inserted into the cartridge holder 1 when the disk cartridge 50 is inserted into the cartridge holder 1 to open the second and third openings. In other words, when the disk cartridge 50 is inserted into the cartridge holder 1, the shutter opening member 21 is engaged with the projection 52 on the shutter opening member 21 side and the disk cartridge 50 is further inserted into the cartridge holder 1. As a result, the shutter 52 is moved, and the second and third openings of the disk cartridge 50 are opened. At this time, the shutter opening member 21 operates the lock member provided in the disk cartridge 50 to unlock the shutter 52 by the lock member.

  Position restriction pieces 23 a and 23 b are provided on the side walls 16 a and 16 b of the cartridge holder 1 so as to be parallel to the main surface 15, respectively. The position restricting pieces 23 a and 23 b are engaged with grooves 51 a and 51 b formed on the side surfaces of the disc cartridge 50 when the disc cartridge 50 is inserted into the holder 1. The grooves 51a and 51b of the disk cartridge 50 and the position restricting pieces 23a and 23b engage with each other to restrict the position of the disk cartridge 50 when the holder 1 is inserted into the cartridge accommodating portion 18 and to be accommodated in the accommodating portion 18. The position of the disk cartridge 50 is regulated.

  The cartridge holder 1 configured as described above is rotatably attached to the chassis 2 by the rotation mechanism 25. That is, the rotation mechanism 25 includes projecting pieces 26 and 27 formed at one end of the side walls 16a and 16b of the cartridge holder 1, a first hole 28 formed in one projecting piece 26, and the other projecting. 27, a second hole 29 formed in the hole 27, support pieces 30, 31 rising in a semicircular arc shape on one side edge of the chassis 2, and protruding from the support pieces 30, 31. Shaft portions 32 and 33 are provided. The protruding pieces 26 and 27 are formed so as to protrude from the top plate portion 15 along the insertion direction of the disc cartridge 50 from the side walls 16a and 16b and to be parallel to each other. A first hole 28 is formed in the approximate center of one projecting piece 26a, and a second hole 29 is formed in the approximately central region of the other projecting piece 27. The protruding piece 27 is provided with a notch 34 that is partially cut and opened in the horizontal direction. The second hole 29 communicates with the notch 34. The width of the notch 34 is larger than the dimension in the minor axis direction of the second shaft portion 33 described later and narrower than the major axis of the second shaft portion 33.

  The support pieces 30 and 31 provided in the chassis 2 have first and second shaft portions 32 respectively engaged with first and second hole portions 28 and 29 serving as first and second engagement holes. , 33 are formed. The 1st axial part 32 is formed so that the cross section may become circular shape. The first shaft portion 32 is formed to have a diameter slightly smaller than the diameter of the first hole portion 28 of the cartridge holder 1. On the other hand, the second shaft portion 33 formed on the support piece 31 is formed so that its cross-sectional shape is elliptical. The second shaft portion 33 is formed such that the width in the minor axis direction of the elliptical section of the second shaft portion 33 is substantially equal to the opening width of the notch portion 34 of the second hole portion 29 of the cartridge holder 1, and the width in the major axis direction is It is formed slightly larger than the width of the notch 34 and slightly smaller than the diameter of the second hole 29. The second shaft portion 33 is disposed such that its long axis is perpendicular to the receiving surface of the optical disk D of the disk table disposed in the chassis 2.

  The cartridge holder 1 is formed with an elastic piece 35 protruding downward from a protruding piece 27 formed on the other side wall 16b. The elastic piece 35 is formed so as to form the same plane as the side wall 16b, and is formed in a substantially “<” shape as a whole. The elastic piece 35 is elastically displaced in the width direction of the holder 1, that is, in a direction orthogonal to the insertion direction of the disc cartridge 50. The elastic piece 35 is elastically displaced in the direction of arrow X in FIG. As shown in FIG. 1R> 1 and FIG. 4, the elastic piece 35 has a restricting portion 36 formed at the end thereof in parallel with the main surface 15 of the cartridge holder 1. The restricting portion 36 is formed so as to protrude downward from the other side wall 16b. The restricting portion 36 is locked to a locking portion 38 formed on a side edge of the chassis 2 described later.

  On the other hand, in the chassis 2, for example, as shown in FIG. 2, a notch 37 is formed in a side surface portion where the support piece 31 is formed so as to penetrate in the thickness direction of the chassis 2. The elastic piece 35 enters the notch 37 when the cartridge holder 1 is attached to the chassis 2.

  The notch 37 is formed so as to protrude from the locking portion 38 continuously with the upper surface of the chassis 2 on which the disk table 11 is disposed. The locking portion 38 is locked with the regulating portion 36 of the elastic piece 35 of the cartridge holder 1. The notch 37 is formed with a slope 39 whose lower surface is lowered toward the support piece 31. A clearance 40 is provided between the locking portion 38 and the surface side of the chassis 2 where the disk table 11 is not disposed, that is, the bottom surface. The inclined surface 39 and the clearance 40 are rotated by the cartridge holder 1 toward the lower position described above, and the restricting portion 36 of the elastic piece 35 is engaged with the engaging portion 38 so that the cartridge holder 1 is attached to the chassis 2. The amount of rotation of the cartridge holder 1 with respect to the chassis 2, that is, the rotation angle is regulated.

  An inclined portion 41 is formed on the end of the locking portion 38 where the inclined surface 39 is not formed, that is, the end of the chassis 2 on the side where the disk table 11 is disposed, so as to descend outward. The inclined portion 41 facilitates elastic displacement of the elastic piece 35 in the direction of arrow X in FIG. 4R> 4 when the cartridge holder 1 is attached to the chassis 2. The notch 37 is formed with a protruding portion 42 on the peripheral wall facing the end 38 a of the locking portion 38. The protruding portion 42 is formed in a circular arc shape that bulges inwardly of the cutout portion 37. When the cartridge holder 1 is rotated toward the upper position after the cartridge holder 1 is attached to the chassis 2, the projecting portion 42 is connected to the slope 39 and the clearance 40 together with the slope 39 or the projecting portion 42. The amount of rotation, that is, the rotation angle of the cartridge holder 1 is regulated by the contact.

  As described above, the chassis 2 to which the cartridge holder 1 is rotatably attached by the rotation mechanism 25 is formed in a rectangular shape larger than the planar shape of the disk cartridge 50. The chassis 2 is provided with a disk table 11 that is rotationally driven by a motor (not shown) in the central region of the upper surface. Inside the disk table 11, a magnet for magnetically attracting a metal plate attached to the central region of the optical disk D accommodated in the disk cartridge 50 is disposed. A centering portion 12 formed in a convex shape is provided in the center of the disk table 11. Therefore, the disc cartridge 50 inserted into the cartridge holder 1 is centered by the centering portion 12 engaging with the center hole of the optical disc D, and the optical disc D by the magnet disposed on the disc table 11. The metal plate is sucked and the optical disk D is chucked by the disk table 11. Thereafter, the optical disk D is rotated by rotating the disk table 11 by a motor (not shown).

  In the chassis 2, an optical pickup opening 13 is opened adjacent to the disk table 11. The optical pickup opening 13 allows an optical pickup device (not shown) to face the outside of the chassis 2. The optical pickup device reads information signals such as audio signals recorded on the optical disc D by irradiating the signal recording surface of the optical disc D of the disc cartridge 50 loaded in the cartridge holder 1 with laser light. Therefore, the optical pickup opening 13 is slightly larger than the second and third openings of the disk cartridge 50, and the signal recording of the optical disk D with the optical pickup device facing the second and third openings described above. In order to irradiate the laser beam over the entire region, it is formed corresponding to the moving region of the optical pickup device.

  Note that a positioning mechanism for the disc cartridge 50 (not shown) is provided on the upper surface of the chassis 2. When the cartridge holder 1 is rotated to the lower position by this positioning mechanism, the disk cartridge 50 held by the cartridge holder 1 is positioned with respect to the chassis 2.

  The cartridge holder 1 configured as described above is attached to the chassis 2 as follows. As shown in FIG. 3, the cartridge holder 1 is positioned so as to be perpendicular to the chassis 2. As shown in FIG. 3, the cartridge holder 1 is perpendicular to the chassis 2 after the cartridge holder 1 is attached to the chassis 2, as shown in FIG. 3. It is in a state outside the region, that is, the normal rotation angle.

  The first hole portion 28 formed in the protruding piece 26 of the cartridge holder 1 is engaged with the first shaft portion 32 provided on the support piece 30 of the chassis 2. Next, in the cartridge holder 1, the second shaft portion 33 of the support piece 31 of the chassis 2 has a notch 34 in a direction perpendicular to the chassis 2 in the second hole portion 29 formed in the protruding piece 27. Is engaged through. The opening width of the notch 34 provided in the second hole 29 is formed to be approximately equal to the diameter in the minor axis direction of the second shaft 33 formed in an elliptical cross section. Therefore, the cartridge holder 1 can be attached only to the chassis 2 from the vertical direction.

  After the cartridge holder 1 is engaged with the first and second shaft portions 32 and 33 of the chassis 2 in the first and second holes 28 and 29, respectively, the cartridge holder 1 is closed, that is, FIG. It is rotated in the direction of the middle arrow A. When the cartridge holder 1 is turned in the closing direction, the restricting portion 36 of the elastic piece 35 comes into contact with the locking portion 38 on the chassis 2 side. At this time, the elastic piece 35 is elastically displaced in the direction indicated by the arrow X in FIG. 4, in this case, the right direction in FIG. As the holder 1 rotates, the elastic piece 35 elastically returns in the direction of arrow X in FIG. 4, in this case, in the left direction in FIG. As a result, the restricting portion 36 gets over the locking portion 38 and is positioned below the locking portion 38 as shown in FIG. As shown in FIG. 4, when the restricting portion 36 is positioned below the locking portion 38, the restricting portion 36 is formed substantially perpendicular to the elastic displacement portion 35, and the cross section of the locking portion 38. Are formed so as to be substantially perpendicular, so that the restricting portion 36 gets over the engaging portion 38 again and the engagement state between the elastic piece 35 and the engaging portion 38 is difficult to be released. When the holder 1 is rotated until it is engaged with the locking portion 38, the attaching operation of the holder 1 to the chassis 2 is completed.

  As shown in FIG. 3, the cartridge holder 1 attached in this way is moved to the upper position by being rotated in the direction of arrow B in FIG. 3, and is rotated in the direction of arrow A in FIG. Is moved to a lower position. As shown in FIG. 5, in the cartridge holder 1, the disc cartridge 50 is inserted from the direction of arrow C in FIG. 5 when the holder 1 is in the open state. When the cartridge holder 1 is rotated in the direction of arrow B in FIG. 5, the restricting portion 36 of the elastic piece 35 is locked to the locking portion 38 of the notch 37 on the chassis 2 side. Therefore, in the cartridge holder 1, the range until the restricting portion 36 of the elastic piece 35 is engaged with the engaging portion 38 is a normal rotation region, and the restricting portion 36 and the inclined surface 39 of the engaging portion 38 are engaged. It is rotated until it is done. The rotation direction of the cartridge holder 1 is restricted by the protruding portion 42 of the notch 37 in addition to the locking portion 38, so that the locking portion 38 abuts at a predetermined position. As described above, the cartridge holder 1 is provided with the notch 34 in the protruding piece 27 for mounting the holder 1. However, since the cartridge holder 1 is formed such that the long axis direction width of the second shaft part 33 formed in the elliptical cross section of the chassis 2 is larger than the opening width of the notch part 34, the holder 1 is shown in FIG. When being rotated in the direction of the arrow A or the direction of the arrow B, it does not come off from the shaft portion 33. This is because the rotation range of the holder 1 of the cartridge holder 1 is restricted when the restricting portion 36 and the engaging portion 38 of the elastic piece 35 are engaged. As shown in FIG. 3, the cartridge holder 1 cannot be rotated to a state perpendicular to the chassis 2 that can be detached from the chassis 2, and therefore does not come off the chassis 2.

  As shown in FIG. 5, the disk cartridge 50 is inserted from the direction of arrow C in FIG. 5 with the cartridge holder 1 being rotated in the direction of arrow B in FIG. Then, the holder 1 is rotated in the direction of arrow A in FIG. When the cartridge holder 1 is rotated in the direction of arrow A in FIG. 5 and moved to a lower position close to the chassis 2, the disk cartridge 50 held by the holder 1 is positioned (not shown) provided in the chassis 2. Positioned by the mechanism. At the same time, the optical disc D in the disc cartridge 50 is chucked on the disc table 11 with the center hole of the optical disc D being centered by the centering portion 12.

  In order to remove the disc cartridge 50 from the cartridge holder 1, the holder 1 may be rotated again in the direction of arrow B in FIG.

  According to the disk cartridge holder device configured in this way, the number of parts can be reduced as compared with the holder rotation mechanism shown in FIGS. 6 and 7, the assembly time can be reduced, and the production efficiency can be improved. Can be achieved. Since the rotation mechanism 25 of the cartridge holder 1 reduces the overall error after assembling by the amount of parts, the cartridge holder 1 can be accurately attached to the chassis 2.

  The cartridge holder is not limited to a disk cartridge, and can be applied to a rotating mechanism or device for a holder that holds a tape cartridge containing a tape such as a magnetic tape.

It is a disassembled perspective view which shows the rotation mechanism of the cartridge holder which comprises this invention. It is a principal part expansion perspective view of the chassis which comprises this invention. It is a principal part side view which shows the attachment state of the cartridge holder which comprises this invention. It is principal part sectional drawing which shows the engagement state of a latching | locking part and an elastic piece. It is a figure for demonstrating rotation operation | movement of the cartridge holder which comprises this invention. It is a disassembled perspective view which shows an example of the rotation mechanism of the cartridge holder used as the premise of this invention. It is a disassembled perspective view which shows the other example of the rotation mechanism of the cartridge holder used as the premise of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Cartridge holder, 2 Chassis, 15 Main surface of cartridge holder, 16a, 16b Side wall, 17a, 17b Holding part, 18 Storage part, 21 Shutter release member, 25 Turning mechanism, 26, 27 Projection piece, 28 1st hole Part, 29 second hole part, 30, 31 support piece, 32 first shaft part, 33 second shaft part, 34 notch part, 35 elastic piece, 36 regulating part, 37 notch part, 38 locking part, 39 slopes, 40 clearances, 41 slopes, 42 protrusions, 50 disc cartridges

Claims (5)

The chassis,
A pair of shaft portions provided on the chassis, each having a shaft portion having a circular cross section and the other shaft portion having an elliptical cross section;
A first engagement hole that engages with the one shaft portion, and a second engagement hole that is continuously formed with a notch and engages with the other shaft portion, and rotates with respect to the chassis A cartridge holder that can be attached;
A restricting portion provided on the side wall in which the second engagement hole of the cartridge holder is formed;
A cartridge holder device comprising: a locking portion that is formed on a side edge of the chassis and locks the restricting portion.   2. The cartridge according to claim 1, wherein a width of the notch is wider than a short axis of the other shaft portion forming the ellipse and narrower than a major axis of the other shaft portion of the elliptical stepped circle. Holder device. The locking portion is formed in a notch formed in the chassis,
2. The cartridge holder device according to claim 1, further comprising a protrusion formed on a peripheral wall of the cutout portion and abutting against the restriction portion when the cartridge holder moves in a direction away from the chassis.   The cartridge holder device according to claim 1, wherein the protruding portion further includes an inclined portion that descends outward from the inside of the chassis. The chassis further includes recording and / or reproducing means for recording and / or reproducing the cartridge held by the cartridge holder.
The locking portion is formed below the upper surface of the chassis on which the recording and / or reproducing means is disposed,
The restricting portion protrudes downward from the cartridge holder and is formed to be parallel to the main surface of the cartridge holder. When the cartridge holder moves in a direction away from the chassis, the restricting portion is engaged with the locking portion. 2. The cartridge holder device according to claim 1, wherein the cartridge holder device is stopped.

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