JP6003640B2 - Loading mechanism and disk device having the same - Google Patents

Description

  The present invention relates to a loading mechanism and a disk device having the same.

  2. Description of the Related Art Conventionally, in a disk device such as an in-vehicle disk player, there is a loading mechanism that inserts a disk-shaped disk such as a CD (Compact Disc) or a DVD (Digital Versatile Disc) from a front slot and loads it into a clamp position.

JP 2012-27967 A

  However, in the above conventional technique, there is a problem that even if the disk is already accommodated in the loading mechanism, if a second disk is further inserted, the disk may be inserted.

  Accordingly, the present invention has been made in view of the above problems, and a loading that can prevent the second disc from being inserted when the disc is already accommodated in the loading mechanism. An object is to provide a mechanism and a disk device including the mechanism.

  The loading mechanism according to the present invention includes an outer chassis, a roller arm that is rotatably held by the outer chassis and has two arms that prevent insertion of a disk at one end, and is rotatable at the other end of the roller arm. The roller arm has a U-shaped claw provided at the tip of each arm and arranged so that the openings face each other.

  According to another aspect of the present invention, there is provided a disc apparatus including the loading mechanism and a housing that covers at least a part of the loading mechanism.

  According to the present invention, when a disk is already accommodated in the loading mechanism, a loading mechanism capable of preventing the second disk from being inserted and a disk device including the same are realized. can do.

FIG. 1 is an exploded perspective view showing a configuration example of a disk device according to an embodiment of the present invention. FIG. 2 is a top view showing a configuration example of a loading mechanism in the disk apparatus shown in FIG. FIG. 3 is a diagram illustrating a configuration of the trigger mechanism according to the present embodiment. FIG. 4 is a diagram for explaining the operation of the trigger mechanism when a disc is inserted into the disc device according to the present embodiment (part 1). FIG. 5 is a diagram for explaining the operation of the trigger mechanism when a disc is inserted into the disc device according to the present embodiment (part 2). FIG. 6 is a diagram for explaining the operation of the trigger mechanism when a disc is inserted into the disc device according to the present embodiment (part 3). FIG. 7 is a diagram for explaining the operation of the trigger mechanism when the disc is ejected from the disc device according to the present embodiment (part 1). FIG. 8 is a diagram for explaining the operation of the trigger mechanism when the disc is ejected from the disc device according to the present embodiment (part 2). FIG. 9 is a diagram for explaining the operation of the trigger mechanism when the disc is ejected from the disc device according to the present embodiment (part 3). FIG. 10 is a perspective view of the roller arm mechanism according to the present embodiment as viewed from the right front. FIG. 11 is a perspective view of the roller arm mechanism according to the present embodiment as viewed from the right rear. FIG. 12 is a diagram showing a state of the roller arm mechanism in the disk insertion standby state in the present embodiment. FIG. 13 is a diagram showing a state of the roller arm mechanism when the roller arm is rotated by an erroneous operation in the disk insertion standby state in the present embodiment. FIG. 14 is a side view showing a state of the roller arm mechanism when the disk insertion operation is started in the present embodiment. FIG. 15 is a view showing the roller arm mechanism in the disc insertion prohibited state in the present embodiment. FIG. 16 is a perspective view showing a configuration of a two-sheet insertion preventing mechanism in the present embodiment. FIG. 17 is a diagram showing the positional relationship between the claw and the slot in the disk insertion standby state according to this embodiment. FIG. 18 is a diagram showing the positional relationship between the claw and the slot when the disk insertion standby state is changed to the disk insertion prohibited state in the present embodiment. FIG. 19 is a diagram showing a state in which a part of the claw is inserted into a groove provided on the ceiling in the disc insertion prohibited state in the present embodiment. FIG. 20 is a diagram showing a state when a disc is to be inserted in the disc insertion prohibited state in the present embodiment. FIG. 21 is a diagram illustrating a state in which the insertion of the disk is inhibited by the nail in the present embodiment. FIG. 22 is a diagram showing the relationship between the claw and the disk when attempting to insert the disk in the disk insertion prohibited state in the present embodiment. FIG. 23 is a diagram for explaining the configuration of the traverse lock mechanism according to the present embodiment. FIG. 24 is a view for explaining the operation of the traverse lock mechanism according to the present embodiment when the disc is ejected (No. 1). FIG. 25 is a view for explaining the operation of the traverse lock mechanism according to the present embodiment when the disc is ejected (No. 2). FIG. 26 is a diagram for explaining the operation of the traverse lock mechanism according to the present embodiment when the disc is ejected (part 3). FIG. 27 is a view for explaining the operation of the traverse lock mechanism according to the present embodiment when the disc is ejected (No. 4). FIG. 28 is a view for explaining the operation of the traverse lock mechanism according to the present embodiment when the disc is ejected (No. 5). FIG. 29 is a diagram illustrating a schematic configuration example of the disk guide according to the present embodiment. FIG. 30 is a diagram illustrating the relationship between the amount of movement of the slider and the height of the clamp arm according to the present embodiment.

  Hereinafter, a loading mechanism and a disk device including the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an exploded perspective view illustrating a configuration example of a disk device according to an embodiment. FIG. 2 is a top view showing a configuration example of a loading mechanism in the disk apparatus shown in FIG.

  As shown in FIG. 1, the disk device 1 includes a loading mechanism 10, an upper housing 20, and a lower housing 30. The loading mechanism 10 is assembled with the outer chassis 101 as a base. The upper housing 20 and the lower housing 30 are fixed to the outer chassis 101 from above or below so as to cover the mechanism mounted on the outer chassis 101 from above or below.

  As shown in FIGS. 1 and 2, the loading mechanism 10 includes a traverse (also referred to as a floating chassis) 102 that is in a floating state with respect to the outer chassis 101 in addition to the outer chassis 101. In order to separate the traverse 102 from the outer chassis 101 in terms of vibration and heat, the traverse 102 is attached to the outer chassis 101 using an elastic body such as a spring or rubber, for example. However, the present invention is not limited to this, and any mounting structure may be used as long as the traverse 102 can be displaced in three dimensions in the vertical and horizontal directions with respect to the outer chassis 101.

  The outer chassis 101 is provided with a roller 111 and a roller arm 112, a motor 113 and a gear unit 114, a gear bracket 127 and a gear holder 141, a trigger slider 126 and a slider 124.

  The roller 111 is rotatably attached to the outer chassis 101 in the vicinity of the slot IN which is an insertion / discharge port for the disk 40 (see FIG. 4 and the like) in the disk device 1. A roller arm 112 for preventing insertion of another disk when the disk 40 is accommodated in the loading mechanism 10 is fixed to the roller 111.

  The trigger slider 126 and the slider 124 are provided on the side of the outer chassis 101 so as to be slidable along the insertion / ejection direction D1 (± Y direction: first direction) of the disk 40. The trigger slider 126 is biased in the −Y direction with respect to the slider 124 by a trigger slider spring 125. The slider 124 is urged in the −Y direction with respect to the outer chassis 101 by a slider spring (not shown).

  The motor 113 is driven based on drive power input from an external drive circuit, for example. The driving force generated by the motor 113 is transmitted to a gear unit 114 configured by meshing a plurality of gears. The gear unit 114 is accommodated in a space formed by the gear holder 141 and the gear bracket 127. The rotation shaft of each gear in the gear unit 114 is attached to a gear holder 141, for example.

  A clamp arm 121 is rotatably attached to the traverse 102. In addition to the clamp 161, a trigger arm 122 is rotatably attached to the clamp arm 121. The end of the trigger arm 122 that contacts the disk 40 is urged in the −Y direction by a trigger arm spring 123 having one end fixed to the outer chassis 101.

  In the schematic configuration as described above, when the disc 40 is inserted from the slot IN, the inserted disc 40 is drawn into the loading mechanism 10 by the roller 111. Thereafter, when the trigger slider 126 is pushed by the disk 40 via the trigger arm 122, the motor 113 starts to rotate in the disk drawing direction under the control of a control circuit (not shown). Thereby, the rotation of the roller 111 is stopped, and the driving force of the motor 113 is transmitted to the slider 124, so that the slider 124 moves in the Y direction. Thereafter, as the slider 124 moves, the disk 40 is pulled to the clamp position (first predetermined position), the clamp arm 121 is lowered and the disk 40 is clamped by the clamp 161, and the roller arm 112 is lifted to form the slot IN. Closed.

  When the control circuit (not shown) instructs to eject the disk 40, the motor 113 starts to rotate in the disk ejection direction based on this instruction. The driving force generated in the motor 113 is transmitted to the slider 124, and the slider 124 moves in the -Y direction. Thereafter, as the slider 124 moves, the clamp arm 121 is lifted to release the clamp of the disk 40, the disk 40 is supplied to the roller 111, the roller arm 112 is lowered to release the slot IN, and the roller 111 is moved to the disk. The disk 40 is ejected by starting to rotate in the ejection direction.

  Next, each part of the loading mechanism 10 shown in FIGS. 1 and 2 will be described in detail with reference to the drawings.

-Trigger mechanism First, the trigger mechanism which functions the trigger arm 122 used as the trigger of the clamp operation which clamps the disk 40 is demonstrated in detail using drawing.

(Constitution)
FIG. 3 is a diagram illustrating a configuration of the trigger mechanism according to the present embodiment. FIG. 3A shows a perspective view of the trigger mechanism, and FIG. 3B shows a top view of the trigger mechanism. As shown in FIG. 3, the trigger mechanism includes a trigger arm 122, a trigger arm spring 123, a trigger slider 126, and a trigger slider spring 125.

  The trigger arm 122 is attached to the clamp arm 121 so as to be rotatable in the rotation direction A4 about the rotation fulcrum 122a. One end of the trigger arm 122 is formed with a locking portion 122b to which one end of the trigger arm spring 123 is locked. The other end of the trigger arm spring 123 is locked to a columnar spring fulcrum 123 a formed on the traverse 102. Therefore, the trigger arm 122 is normally biased toward the back side (rotation direction A4a) of the loading mechanism 10. The position of the disk contact end (on the locking portion 122b side) in the trigger arm 122 at this time is defined as a third predetermined position. This third predetermined position is on the back side (−Y direction) in the insertion / ejection direction D1 from the first predetermined position.

  At the other end of the trigger arm 122, a contact portion 122c that contacts the tip 126a of the trigger slider 126 is formed. Here, the abutting portion 122c ensures that even when the traverse 102 is displaced with respect to the outer chassis 101, the abutting portion 122c abuts the tip 126a of the trigger slider 126 that has moved along the movement axis A5 at an appropriate position. Furthermore, it has an appropriate width and shape.

  The trigger slider 126 is slidable along a rail (not shown) provided in the outer chassis 101. The rail extends in a direction parallel to the insertion / ejection direction D1. Therefore, the trigger slider 126 slides along the movement axis A5 parallel to the insertion / ejection direction D1. The trigger slider 126 is biased to the back side (−Y direction) of the loading mechanism 10 by a trigger slider spring 125 whose one end is locked to the gear holder 141.

  The trigger slider 126 is formed with a rack gear 126c extending in a direction parallel to the movement axis A5. The rack gear 126c can mesh with the pinion gear 1141 in the gear unit 114. The driving force generated by the motor 113 is transmitted to the pinion gear 1141 via other gears in the gear unit 114. Therefore, the trigger slider 126 moves along the movement axis A5 by the driving force from the motor 113 in a state where the rack gear 126c is engaged with the pinion gear 1141.

  Here, at the contact position between the tip 126 a of the trigger slider 126 and the contact portion 122 c of the trigger arm 122, the biasing force by the trigger slider spring 125 is larger than the biasing force by the trigger arm spring 123. Therefore, when the trigger arm 122 is not pressed by the disk 40 and when the trigger slider 126 is not pressed to the back side (−Y direction) by the driving force from the motor 113, the locking portion of the trigger arm 122. The 122b side is pushed by the trigger slider 126 and is rotated to the front side of the loading mechanism 10 (see the rotation direction A4b in FIG. 4). In this state, the rack gear 126c of the trigger slider 126 is not engaged with the pinion gear 1141. Note that the position of the disk contact end in the trigger arm 122 at this time is defined as a second predetermined position. This second predetermined position is in front of the first predetermined position in the insertion / ejection direction D1 (Y direction).

  When the trigger arm 122 is pushed by the disk 40, the trigger slider 126 is pushed along the movement axis A5 by the contact portion 122c of the trigger arm 122. Then, the rack gear 126c of the trigger slider 126 meshes with the pinion gear 1141. As a result, the driving force of the motor 113 is transmitted to the trigger slider 126 via the gear unit 114, and the trigger slider 126 is placed under the control of a control circuit (not shown).

  The trigger slider 126 and the slider 124 are slidably engaged with each other by a groove rail 126b formed on the trigger slider 126 and a protrusion 124c formed along the movement axis A5 formed on the slider 124. Therefore, the trigger slider 126 and the slider 124 do not move in conjunction with each other until the groove rail 126b contacts the end in the protrusion 124c, and after the groove rail 126b contacts the end in the protrusion 124c, the trigger slider. 126 and the slider 124 move along the movement axis A5 in conjunction with each other.

(Operation)
Next, the operation of the trigger mechanism at the time of disk insertion / ejection will be described in detail with reference to the drawings. 4 to 6 are diagrams for explaining the operation of the trigger mechanism when a disc is inserted into the disc device. 7 to 9 are diagrams for explaining the operation of the trigger mechanism when the disc is ejected from the disc device. In each figure, (a) shows a side view of the trigger mechanism, and (b) shows a top view of the trigger mechanism.

  First, the operation when inserting a disc will be described. The disk 40 inserted from the slot IN of the disk device 1 is guided into the loading mechanism 10 by the rotation operation of the roller 111. At this time, as shown in FIG. 4, at the stage where the disk 40 has not yet reached the clamping position inside the loading mechanism 10, one end (on the locking portion 122 b side) of the trigger arm 122 is pushed by the edge of the disk 40. It has not been. Therefore, the trigger arm 122 is pushed by the trigger slider 126 urged by the trigger slider spring 125 and is in a position rotated in the rotation direction A4b that is opposite to the rotation direction A4a.

  Next, as shown in FIG. 5, when the disk 40 reaches the clamp position, one end (the locking portion 122 b side) of the trigger arm 122 is pushed by the disk 40. As a result, the trigger arm 122 rotates about the rotation fulcrum 122a in the rotation direction A4a, and the contact portion 122c at the other end of the trigger arm 122 pushes the tip 126a of the trigger slider 126. As a result, the trigger slider 126 moves in the A5a direction along the movement axis A5, and the rack gear 126c of the trigger slider 126 and the pinion gear 1141 of the gear unit 114 mesh with each other. A switch or the like may be provided on the trigger arm 122 to detect the insertion of the disk 40, and the motor 113 may be driven when the disk 40 is inserted. In this case, the motor 113 may generate a driving force that moves the trigger slider 126 in the A5a direction.

  Thereafter, as shown in FIG. 6, in a state where the rack gear 126c and the pinion gear 1141 mesh with each other, the driving force generated by the motor 113 is transmitted to the trigger slider 126 via the gear unit 114, and the trigger slider 126 further moves in the A5a direction. Move to. As a result, the tip 126a of the trigger slider 126 is separated from the contact portion 122c of the trigger arm 122, and the trigger arm 122 is urged in the rotational direction A4a by the trigger slider spring 125. As a result, the contact portion of the trigger arm 122 with the disk 40 (the end on the side of the locking portion 122b) is urged to the position on the back side (−Y direction) of the loading mechanism 10. In this position, the trigger arm 122 and the disk 40 are not in contact with each other. Therefore, sliding friction between the trigger arm 122 and the disk 40 can be eliminated.

  Further, as a result of the driving force generated by the motor 113 being transmitted to the trigger slider 126 via the gear unit 114 and the trigger slider 126 further moving in the A5a direction, the groove rail 126b of the trigger slider 126 is moved as shown in FIG. The trigger 124 comes into contact with the end of the protrusion 124c of the slider 124, and the trigger slider 126 and the slider 124 move in the A5a direction in conjunction with each other. That is, the slider 124 is moved by the driving force of the motor 113.

  Next, the operation when the disc is ejected will be described. As shown in FIG. 7, when drive power for ejecting the disc is input to the motor 113 from an external drive circuit or the like, the motor 113 generates a drive force that moves the trigger slider 126 in the A5b direction. The driving force generated by the motor 113 is transmitted to the trigger slider 126 via the gear unit 114, whereby the trigger slider 126 moves in the A5b direction.

  When the trigger slider 126 moves in the A5b direction, the tip 126a of the trigger slider 126 comes into contact with the contact portion 122c of the trigger arm 122 as shown in FIG. The slider 124 moves in the A5b direction in conjunction with the trigger slider 126 as soon as the inner end of the protrusion 124c contacts the groove rail 126b of the trigger slider 126.

  Thereafter, as shown in FIG. 9, the trigger slider 126 pushes the contact portion 122c of the trigger arm 122 until the rack gear 126c and the pinion gear 1141 are disengaged. As a result, the trigger arm 122 is rotated in the rotation direction A4b. Further, the clamped disk 40 is pushed out by the rotation of the trigger arm 122 in the rotation direction A4b and is sandwiched between the insertion / ejection mechanisms including the roller 111, and then ejected from the slot IN by the rotation of the roller 111.

  According to such a trigger mechanism, since the contact between the trigger arm 122 and the disk 40 can be avoided in a state where the disk 40 is clamped, the sliding friction when the disk 40 rotates can be eliminated. Further, since a configuration such as a lock pin for preventing the trigger arm 122 from coming into contact with the disk 40 in the state where the disk 40 is clamped is unnecessary, the sliding when the disk 40 rotates with a small number of parts. It is possible to eliminate dynamic friction. Furthermore, in the above configuration, since the trigger arm 122 is provided in the traverse 102, for example, space can be saved as compared with the case where it is provided in the outer chassis 101.

Roller arm mechanism Next, a roller arm mechanism for inserting / ejecting the disk 40 will be described in detail with reference to the drawings.

(Constitution)
10 and 11 are diagrams showing the configuration of the roller arm mechanism according to the present embodiment. FIG. 10 is a perspective view of the roller arm mechanism as viewed from the right front, and FIG. 11 is a perspective view of the roller arm mechanism as viewed from the right rear. As shown in FIGS. 10 and 11, the roller arm mechanism includes a roller 111, a roller arm 112, and an up / down lever 142.

  The roller 111 is a cylindrical rotating body formed of an elastic body such as rubber. For example, one end of the roller 111 is provided with a gear that meshes with any gear of the gear unit 114. Therefore, the roller 111 rotates about the rotation shaft 111a by the driving force generated by the motor 113. In other words, the roller 111 rotates in accordance with the control of the external control circuit, thereby executing the disk 40 insertion / ejection operation.

  The roller arm 112 includes a holding portion 112a that rotatably holds both ends of the roller 111, and a block arm 112b that restricts insertion of the disk 40. A U-shaped claw 112c is provided at the tip of the block arm 112b. The roller arm 112 is attached to a gear bracket 127 fixed to the outer chassis 101 so as to be rotatable about rotation fulcrums (see 112e in FIG. 16) provided at both ends. Therefore, the roller 111 held by the roller arm 112 can move up and down by the rotation of the roller arm 112.

  For example, the end of the roller 111 on the gear unit 114 side contacts the up / down lever 142. The up / down lever 142 is attached to a gear holder 141 fixed to the outer chassis 101 so as to be rotatable about a rotation fulcrum 142c. The up / down lever 142 includes an arm portion 142b that comes into contact with one end of the roller 111 from above, and a lever dowel 142a provided on the opposite side of the arm portion 142b with the rotation fulcrum 142c interposed therebetween. The lever dowel 142 a abuts on the inclined surface of the inclined portion 124 d of the slider 124. Therefore, the up / down lever 142 rotates around the rotation fulcrum 142c as the slider 124 moves. With this configuration, the vertical movement of the roller 111 can be controlled by the slider 124.

  In addition, a stopper 112d is provided in the holding portion 112a that holds the end of the roller 111 on the gear unit 114 side. The stopper 112d has a claw shape bent in an L shape. This stopper 112d prevents rotation of the roller arm 112 by abutting against the tip of the arm portion 142b of the up / down lever 142 in a state where the roller 111 is not pushed downward. That is, the stopper 112d functions to prevent the disk from being forcibly inserted when the roller arm 112 is pushed by the user when a control circuit (not shown) does not control the roller 111 to be pushed down.

(Operation)
Next, the operation of the roller arm mechanism will be described in detail with reference to the drawings. FIG. 12 is a diagram showing a state of the roller arm mechanism (hereinafter referred to as a disc insertion standby state) when the disc is not stored in the loading mechanism, that is, when waiting for the disc insertion. a) shows a perspective view thereof, and FIG. 12 (b) shows a side view thereof. FIG. 13 is a view showing a state of the roller arm mechanism when the roller arm is rotated by an erroneous operation in the disk insertion standby state, and FIG. 13A shows a perspective view thereof, and FIG. Shows the side view. FIG. 14 is a side view showing the state of the roller arm mechanism when the disc insertion operation is started. FIG. 15 is a diagram showing a state of the roller arm mechanism (hereinafter referred to as a disc insertion prohibition state) when the disc is stored inside the loading mechanism, and FIG. 15A shows a perspective view thereof. 15 (b) shows a side view thereof.

  As shown in FIG. 12, when the disk 40 is not stored in the loading mechanism 10 and is in a disk insertion standby state in which the disk 40 is waiting to be inserted, the slider 124 moves to the back side (−Y of the loading mechanism 10. Direction). In this state, the lever dowel 142a of the up / down lever 142 does not slide up the slope of the inclined portion 124d of the slider 124, so the up / down lever 142 does not push down the roller 111.

  In the state shown in FIG. 12, when the roller arm 112 is rotated, for example, directly in the direction of lowering the roller 111 by an external force (left rotation in the drawing), as shown in FIG. The provided stopper 112d hits the tip of the arm portion 142b of the up / down lever 142. Thereby, rotation (left rotation in the drawing) of the roller arm 112 is suppressed. As a result, as shown in FIG. 13B, for example, the roller 111 can be prevented from being pushed down by the disk 40 or the like inserted from the slot IN, so that the inside of the loading mechanism 10 is inappropriate (for example, in the wrong direction). It can be prevented from being damaged by the inserted disc 40 or the like. Further, even if the disc 40 is mistakenly inserted, the roller arm 112 does not rotate, so that the front surface of the block arm 112b does not damage the surface of the disc 40.

  On the other hand, as shown in FIG. 14, when the insertion operation of the disk 40 is started, the slider 124 moves in the Y direction (right direction in the drawing) along the movement axis A5. Then, the lever dowel 142a of the up / down lever 142 starts to slide up on the slope of the inclined portion 124d of the slider 124, whereby the up / down lever 142 rotates about the rotation fulcrum 142c to the right in the drawing. As a result, the arm portion 142b of the up / down lever 142 is inserted between the stopper 112d and the roller 111, so that the roller 111 starts to be pushed down without being blocked by the stopper 112d.

  Thereafter, as shown in FIG. 15, in the state where the insertion of the disk 40 is completed and the disk 40 is clamped, that is, the lever dowel 142a of the up / down lever 142 is fully up the slope of the inclined portion 124d, the up / down lever The arm portion 142b of 142 pushes the roller 111 down to a predetermined position. As a result, the disk arm 112b of the roller arm 112 enters a disk insertion prohibited state in which further insertion of the disk from the slot IN is prohibited.

  According to such a roller arm mechanism, it is possible to prevent the roller 111 from being inadvertently pushed down by a simple configuration of the stopper 112d provided on the holding portion 112a of the roller arm 112, so that, for example, when using another component such as a cam groove. In addition, it is possible to reduce the size and space of the roller arm mechanism. Further, even when a disc having a thickness larger than that of the regular disc 40 is inserted, the roller 112 can be prevented from being pushed down by the stopper 112d, so that a plate having a thickness that is not regular is loaded into the loading mechanism 10. Can be prevented.

-Two-sheet loading prevention mechanism Next, the two-sheet loading prevention mechanism provided in the roller arm mechanism will be described in detail with reference to the drawings.

  FIG. 16 is a perspective view showing a configuration of a two-sheet insertion preventing mechanism in the present embodiment. FIG. 17 is a diagram showing the positional relationship between the claw and the slot in the disc insertion standby state. FIG. 18 is a diagram showing the positional relationship between the claw and the slot when the disc insertion standby state is changed to the disc insertion prohibition state. FIG. 19 is a diagram showing a state in which a part of the claw is inserted into a groove provided on the ceiling in a disc insertion prohibited state. FIG. 20 is a diagram illustrating a state where a disc is to be inserted in a disc insertion prohibited state. FIG. 21 is a diagram illustrating a state where the insertion of the disk is inhibited by the nail. FIG. 22 is a diagram showing the relationship between the claw and the disc when attempting to insert the disc in the disc insertion prohibited state.

  As shown in FIG. 16, a claw 112c is provided at the tip of the block arm 112b of the roller arm 112, respectively. These claws 112c function as a two-sheet insertion prevention mechanism that prevents insertion of the second disk. The insertion of the second disk means that another disk is to be inserted while the disk 40 is already clamped in the loading mechanism 10.

  The claw 112c provided at the tip of each block arm 112b has a groove having a U-shaped shape. The two claws 112c are spaced apart in the lateral direction (X-axis direction) so that the openings of the grooves face each other. The width of the groove may be approximately the same as the width of the disk 40, for example. The horizontal direction is a direction parallel to the disk plane when the disk 40 is inserted, and is a direction perpendicular to the insertion / ejection direction D1 of the disk 40.

  Further, the claw 112c is inclined in a direction (−Y direction) toward the inside of the loading mechanism 10 when, for example, the disk insertion is prohibited. The inclination angle may be 45 °, for example, but is not limited thereto.

  As shown in FIG. 17, the claw 112c is retracted downward with respect to the slot IN in the disk insertion standby state. In this state, the disk 40 is not prevented from being inserted into the loading mechanism 10 from the slot IN.

  As shown in FIG. 18, when the disc insertion standby state is changed to the disc insertion prohibition state, the claw 112c is raised by the rotation of the block arm 112b. Accordingly, as shown in FIG. 19, a part of the upper end of the claw 112 c enters the groove 22 provided in the ceiling 21 inside the upper housing 20 that covers the loading mechanism 10 from above. As a result, the slot IN is blocked by the claw 112c in the longitudinal direction (Z-axis direction) in the drawing.

  When the slot IN is blocked by the claw 112c in the longitudinal direction (Z-axis direction) in the drawing, the insertion of the disk 40 from the slot IN is prevented by the claw 112c as shown in FIG. That is, when the disk 40 is inserted from the slot IN, as shown in FIG. 21, the edge 41 of the disk 40 is locked in the U-shaped grooves formed in the two claws 112c. As a result, as shown in FIG. 22, insertion of the disk 40 into the loading mechanism 10 is prevented.

  Further, not only the U-shaped groove but also the inclination of the claw 112c prevents the disk 40 from being inserted into the loading mechanism 10. That is, the disk 40 inserted from the slot IN is guided and brought into contact with the ceiling 21 of the upper housing 20 by the inclination of the claw 112c, thereby preventing the disk 40 from being inserted into the loading mechanism 10.

  According to such a two-sheet insertion prevention mechanism, insertion of the second disk can be prevented by a simple configuration of the U-shaped claw 112c provided at the tip of the block arm 112b. Further, by inserting a part of the tip of the claw 112 c into the groove 22 provided in the ceiling 21, the insertion of the second disk can be more reliably prevented, and the claw 112 c can be connected to the inside of the loading mechanism 10. By tilting toward, the dimension of the roller arm 112 in the Y direction can be shortened in the -Y direction.

-Traverse Lock Mechanism Next, a mechanism for locking the traverse 102 mounted on the outer chassis 101 so as to be displaceable with respect to the outer chassis 101 as required (hereinafter referred to as a traverse lock mechanism) will be described in detail with reference to the drawings. Explained.

(Constitution)
FIG. 23 is a diagram for explaining the configuration of the traverse lock mechanism according to the present embodiment. 23A shows a top view of the traverse lock mechanism, and FIG. 23B shows a side view of the traverse lock mechanism. In FIG. 23, for simplification of description, a configuration necessary for the description of the loading mechanism 10 is schematically shown.

  As shown in FIG. 23, the traverse lock mechanism includes a Y-direction fixed shaft 102y, a Z-direction fixed shaft 102z, a lock arm (first lock portion) 171, and a convex provided on the side surface of the slider 124 on the traverse 102 side. Part 124f and a concave groove rail (not shown) (second lock part) provided on the traverse 102 side of the slider 124. The groove rail (not shown) extends along the movement axis of the slider 124, that is, the Y direction.

  The Y direction fixed shaft 102 y is fixed to the bottom surface of the traverse 102. This Y-direction fixed shaft 102y has a gap between the outer chassis 101 and the traverse 102 for displacement in the Z direction. The Z-direction fixed shaft 102z is fixed to the side surface of the traverse 102 on the slider 124 side. The Z-direction fixed shaft 102z has a gap for the traverse 102 to be displaced in the X direction between the upper housing 20 and the lower housing 30 forming the inner surface of the disk device 1.

  The lock arm 171 is provided on the outer chassis 101 so as to be rotatable about a rotation fulcrum 171a. The lock arm 171 includes a groove 171c that engages with the Y-direction fixed shaft 102y when rotated clockwise in the drawing (a direction opposite to the rotation direction A6), and a convex rail that abuts a convex portion 124f provided on the slider 124. 171b, and is urged by a spring (not shown) in a rotation direction A6 that is counterclockwise in the drawing.

  When the Z-direction fixed shaft 102z moves along the movement axis A5, it engages with a groove rail (not shown) formed on the side surface of the Z-direction fixed shaft 102z and is sandwiched from above and below.

(Operation)
Next, the operation of the traverse lock mechanism will be described in detail with reference to the drawings. 24 to 28 are diagrams for explaining the operation of the traverse lock mechanism according to the present embodiment when the disc is ejected. 24 to 28, like FIG. 23, the configuration necessary for the description of the loading mechanism 10 is schematically shown for the sake of simplicity. In each figure, (a) shows a top view of the traverse lock mechanism, and (b) shows a side view of the traverse lock mechanism.

  First, as shown in FIG. 24, in a state where the disk 40 is clamped inside the loading mechanism 10, the lock arm 171 is biased in the rotational direction A6, and the slider 124 is retracted to the slot IN side on the moving shaft A5. Therefore, the Y-direction fixed shaft 102 y is not engaged with the groove 171 c of the lock arm 171, and the Z-direction fixed shaft 102 z is not sandwiched between the groove rails (not shown) of the slider 124. Therefore, the traverse 102 is in a floating state with respect to the outer chassis 101.

  Next, when disc ejection control is executed by an external control circuit, the slider 124 moves in the A5b direction along the movement axis A5 as shown in FIG. Then, the convex portion 124f formed on the side surface of the slider 124 comes into contact with the convex rail 171b formed on the side surface of the lock arm 171 and pushes it clockwise (rotation direction A7) in the drawing. As a result, the groove 171c of the lock arm 171 is engaged with the Y-direction fixed shaft 102y, and the movement of the traverse 102 in the Y direction is locked. Further, by the movement of the slider 124, a groove rail (not shown) formed on the side surface of the slider 124 engages with the Z-direction fixed shaft 102z, and is sandwiched from above and below. As a result, the movement of the traverse 102 in the Z direction is locked. That is, the movement of the traverse 102 in the Y direction and the Z direction is locked during the disc ejection operation.

  Next, as shown in FIG. 26, when the slider 124 moves in the A5b direction until the convex portion 124f of the slider 124 passes the convex rail 171b of the lock arm 171, the lock arm 171 is rotated clockwise in the drawing (rotation direction A7). Since there is no longer the pushing force, the lock arm 171 is rotated counterclockwise (rotation direction A7a) in the drawing by a spring (not shown). As a result, the Y-direction fixed shaft 102y and the groove 171c are disengaged, and the traverse 102 can move in the Y direction. However, the movement of the traverse 102 in the Z direction remains locked.

  Further, at this stage, the inclined portion 124b provided on the upper portion of the slider 124 and the holding portion 121b provided on the clamp arm 121 come into contact with each other, and the holding portion 121b slides up the side surface of the inclined portion 124b. The arm 121 is lifted in the A8 direction. As a result, the disc 40 is unclamped and the disc 40 can be ejected.

  Thereafter, as shown in FIG. 27, the disk 40 moves in the discharge direction D1a and is supplied to the roller 111, and is discharged from the slot IN by the rotation of the roller 111. When the disc 40 is ejected, the traverse 102 is movable in the X direction and the Y direction D3 as shown in FIG. Further, the clamp arm 121 is maintained in an open state by lifting the holding portion 121b by the upper surface of the inclined portion 124b of the slider 124.

  According to such a traverse lock mechanism, the movement of the traverse 102 can be locked when the disc is ejected. Thereby, it is possible to smoothly and reliably deliver the disc 40 to and from the roller 111 when the disc is ejected. Further, since the traverse lock mechanism operates by the movement of the slider 124, it does not require complicated control and mechanism, and can be realized with a simpler and fewer parts. Further, the receiving of the traverse 102 at the time of a drop impact or the like can be received by the strong outer chassis 101 without receiving it by a driving component that is difficult to take strength.

Disc Guide Next, a configuration for guiding the disc 40 entering / exiting from the slot IN in the correct insertion / ejection direction D1 will be described in detail with reference to the drawings.

  FIG. 29 is a diagram showing a schematic configuration example of the disk guide according to the present embodiment, and FIG. 29A is a front view when the disk device 1 including the disk guide 23 is viewed from the slot IN side. 29B is a plan view showing a schematic configuration of the ceiling 21 inside the upper housing 20 in which the disk guide 23 is formed.

  As shown in FIG. 29, in the disk guide 23 provided on the ceiling 21 of the upper housing 20, the two convex flat plates whose height decreases as they approach the center of the ceiling 21 are symmetrical in the drawing. The structure provided in the ceiling 21 is provided. Each disk guide 23 has a first surface facing the slot IN side (Y direction), a second surface on the center side of the ceiling 21, a third surface facing the back side (−Y direction) of the loading mechanism 10, It has the 4th surface facing outside with respect to the center part of ceiling 21, and the 5th surface used as the principal surface which contacts each of the 1st-4th surfaces. The fifth surface is inclined with respect to the surface of the ceiling 21.

  Each disk guide 23 has a shape in which the first surface facing the slot IN moves away from the slot IN as it approaches the center of the ceiling 21. Moreover, this 1st surface inclines so that the angle with respect to the ceiling 21 may become an obtuse angle.

  The disk 40 inserted from the slot IN first makes point contact with the first surface of each disk guide 23. Subsequently, the disk 40 is guided to the inside of the loading mechanism 10 (−Y direction) while making point contact of the first surface with the side where the first surface and the fifth surface intersect. Thereafter, the disk 40 is guided further into the loading mechanism 10 (−Y direction) while making point contact with the fifth surface of each disk guide 23.

  Further, when the disc is ejected, the disc 40 is ejected to a predetermined position while making point contact with the fifth surface, and then pulled out by the user's hand.

  According to the disc guide 23 having such a shape, the contact of the disc 40 at the time of disc insertion / ejection can always be a point contact, so that friction at the time of disc insertion / ejection can be reduced. Thereby, it is possible to reduce the noise generated at the time of disk insertion / ejection.

  In addition, when the disk 40 is always in contact with the housing (upper housing 20) of the disk device 1 when the disk is inserted / discharged, static electricity from the disk 40 can be released to the housing of the disk device 1. Become. As a result, each part in the loading mechanism 10 can be prevented from being damaged by static electricity from the disk 40.

・ Slider shape 1
Next, the shape of the slider 124 will be described below. In this embodiment, all or part of the operation of rotating the roller arm 112 to lower the block arm 112b and the whole or part of the operation of pushing up the holding portion 121b of the clamp arm 121 and lifting the clamp arm 121 overlap. To be configured. From the same configuration, all or part of the operation of lowering the clamp arm 121 can be overlapped with all or part of the operation of rotating the up / down lever 142 to lift the block arm 112b of the roller arm 112.

  Specifically, when the lever dowel 142a of the up / down lever 142 starts to slide down the inclined surface of the inclined portion 124d of the slider 124 (see FIGS. 12 to 15), the inclined surface of the inclined portion 124b of the slider 124 is reached. Adjusts the length and shape of the slider 124 so that the slider 124 contacts the holding portion 121b of the clamp arm 121 (see FIGS. 25 to 28).

  According to such a shape of the slider 124, the slider 124 can be prevented from being excessively accelerated by the lever dowel 142 a sliding down the slope of the slope portion 124 d of the slider 124, so that the slope portion 124 b of the slider 124 is clamped by the clamp arm 121. It is possible to prevent the occurrence of a collision sound when coming into contact with the upper holding portion 121b. Similarly, since it is possible to prevent the slider 124 from being accelerated excessively by the acceleration force applied by the slope of the holding portion 121b, it is possible to prevent the occurrence of a collision sound when the inclined portion 124d of the slider 124 contacts the lever dowel 142a. Can do.

・ Slider shape 2
Further, the slope of the slope 124b of the slider 124 for lifting the holding portion 121b of the clamp arm 121 is related to the relationship line C1 in the relationship between the movement amount of the slider 124 and the height of the clamp arm 121 as shown in FIG. It is preferable that the slope is a transition from the area A1 sandwiched between the slope C2 and the slope C2 to the area A2 sandwiched between the relationship line C1 and the slope C2. By satisfying such a condition, it is possible to reduce noise generated when the holding portion 121b of the clamp arm 121 slides up or down the slope of the inclined portion 124b of the slider 124.

  The above embodiments are merely examples for carrying out the present invention, and the present invention is not limited to these embodiments, and various modifications according to specifications and the like are within the scope of the present invention. It is obvious from the above description that various other embodiments are possible within the scope of the invention.

DESCRIPTION OF SYMBOLS 1 Disc apparatus 10 Loading mechanism 20 Upper housing | casing 21 Ceiling 22 Groove 23 Disc guide 30 Lower housing 40 Disc 101 Outer chassis 102 Traverse 102y Y direction fixed axis (1st fixed axis)
102z Z direction fixed axis (second fixed axis)
111 Roller 111a Rotating shaft 112 Roller arm 112a Holding part 112b Block arm 112c Claw 112d Stopper 112e Rotation fulcrum 113 Motor 114 Gear unit 1141 Pinion gear 121 Clamp arm 121b Lifting upper part 122 Trigger arm 122a Rotation fulcrum 122b Locking part 122c Contact part 123 Trigger arm spring 123a Spring fulcrum 124 Slider 124b Inclined portion 124c Protrusion 124d Inclined portion 124f Protruding portion 125 Trigger slider spring 126 Trigger slider 126a Tip 126b Groove rail 126c Rack gear 127 Gear bracket 141 Gear holder 142 Up / down lever 142a Lever dowel 142c Arm support point 142b Arm portion 142c 161 Clamp 171 Lock Arm 171a Rotation fulcrum 171b Convex rail 171c Groove D1 Insertion / ejection direction IN slot

Claims (4)

An outer chassis,
A roller arm that is rotatably held by the outer chassis and has two arms that prevent insertion of a disk at one end;
A roller rotatably held at the other end of the roller arm;
With
The roller arm is provided with a U-shaped claw provided at the tip of each arm and disposed so that the openings face each other.   The loading mechanism according to claim 1, wherein the claw is inclined with respect to an insertion direction of the disk. A loading mechanism according to claim 1 or 2,
A housing covering at least a part of the loading mechanism;
A disk device comprising: The loading mechanism further includes an up / down lever that is rotatably held by the outer chassis and has an arm for pushing down the roller,
The housing has a groove at a position facing the claw,
4. The disk device according to claim 3, wherein at least a part of the claw is fitted into the groove when the up / down lever pushes down the roller.

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