JPH08321109A - Apparatus for loading recording medium - Google Patents

Abstract

PURPOSE: To obtain a recording medium-loading apparatus with a reduced number of parts in a simplified constitution and hardly generating mechanic noises. CONSTITUTION: A spring force is impressed by a torsion spring 58 to a swing member 54 set to freely swing at a moving body 41. A V-shaped recess 61 is defined in a guide part 37a of a guide long hole 37 by a first inclined face 62 and a second inclined face 63. A butting part 60 at a free end part of the swing member 54 engages an engaging part 49 of a tray 33. A projecting part 57 of the swing member 54 is engaged with a continuous part between the first and second inclined faces 62 and 63 of the recess 61, thereby stably positioning the tray 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing / recording device for a recording medium such as a compact disc, and more particularly to a loading device for inserting and ejecting a tray carrying a recording medium.

[0002]

2. Description of the Related Art FIG. 12 is a plan view showing in simplified form a loading device for inserting and ejecting a tray 2 of a conventional compact disc reproducing device 1. A tray 2 on which a compact disk is mounted is arranged on the left side of FIG. 12 in the reproducing apparatus 1, and the tray 2 is inserted into the reproducing apparatus 1 to reproduce.
The tray 2 on which the compact disc is mounted has a locking portion 6 and is provided so as to be insertable into and removable from the chassis 3 of the reproducing apparatus 1 in the inserting direction 4 and the ejecting direction 5 which is the opposite direction. A guide groove 7 is formed near one side of the chassis 3 along the insertion direction 4. The guide groove 7 is provided with a guide member 8 arranged on the depth side of the paper surface of FIG. 12 and movable along the guide groove 7. The guide member 8 has a pair of guide protrusions 9 and 10 protruding from the chassis 3 and an abutting portion 11 that abuts on the locking portion 6 of the tray 2.

A bias lever 12 is provided in the vicinity of one end portion of the guide groove 7 on the downstream side in the insertion direction 4 by a pin 13 so as to be angularly displaceable. The bias lever 12 includes a base portion 14, a first protrusion 15 extending along the base portion 14, and a second protrusion 16 extending substantially perpendicular to the first protrusion 15. An engaging portion 17 is formed on the free end portion of the base portion 14, and an engaging portion 18 is also formed on one side portion of the chassis 3. A tension spring 19 is attached between the engaging portion 17 and the engaging portion 18, and the base portion 10
The free end of is always given a spring force toward the engaging portion 18,
The bias lever 12 is locked by the locking protrusion 20.

When the tray 2 is in the ejected state as shown by the phantom line, the bias lever 12 is arranged substantially parallel to the guide groove 7, and the first projection 15 is locked by the locking projection 20. When the guide member 8 indicated by an imaginary line is guided in the insertion direction 4 by the driving means (not shown), the contact portion 11 locks the locking portion 6 and inserts the tray 2 in the insertion direction 4.
The guide member 8 is guided to the bias lever 12, and when the one guide protrusion 10 on the insertion direction 4 side presses the second protrusion 16 against the spring force of the tension spring 19, the bias lever 12 is pressed.
Starts to make a clockwise angular displacement as indicated by arrow 22.
Here, the angular displacement center axis 13a of the pin 13 and the engaging portion 1
8 is a plane including a contact point with which the tension spring 19 of FIG.
When set to 1, the bias lever 12 is angularly displaced, and the engaging portion 1
When 7 exceeds the plane 21, the base portion 14 is angularly displaced in the direction of the arrow 22 by the spring force of the tension spring 19 and the engaging projection 20
And is engaged with and is substantially vertical to the guide groove 7.
Therefore, as shown in FIG. 13, the guide member 8 is guided to one end of the guide groove 7 on the insertion direction side, and one guide protrusion 10
When the guide groove 8 contacts the chassis 3 at one end of the guide groove 7, the first protrusion 15 contacts the other guide protrusion 9 and the guide member 8 is clamped by the bias lever 12. At this time, the locking projection 20 locks the base portion 14. The tray 2 is omitted in FIG.

When ejecting the tray 2, the guide member 8 is guided in the ejection direction 5 by the driving means. At this time,
The other guide protrusion 9 of the guide member 8 presses the first protrusion 15 to move the bias lever 12 counterclockwise to the arrow 23.
Angular displacement in the direction of. When the engaging portion 17 exceeds the flat surface 21, the bias lever 12 is biased by the spring force of the tension spring 19.
Is angularly displaced in the direction of arrow 23, becomes substantially parallel to the guide groove 7, and collides with the locking projection 20 to be locked. The guide member 8 is continuously guided by the driving means and ejects the tray 2 in the ejection direction 5.

[0006]

In a recording medium loading device such as a compact disc, a tray on which a compact disc is loaded is inserted into a predetermined loading position of the reproducing / recording device main body, loaded, and held at that position. There must be.

Therefore, conventionally, as described above, the structure for clamping the guide member 8 by the bias lever 12 is provided. Therefore, bias lever 12, pin 1
3, members such as the locking protrusion 20, the two engaging portions 17 and 18, and the tension spring 19 are required, which causes a problem of increasing the number of parts.

The bias lever 12 has a tension spring 19
Since the spring force is applied to the tray 2, the tray 2 collides with the locking projections 20 when the tray 2 is inserted and ejected, and undesired mechanical noise occurs.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a recording medium loading device that has a simplified structure, has a reduced number of parts, and has little mechanical noise.

[0010]

SUMMARY OF THE INVENTION According to the present invention, a tray on which a recording medium is placed is loaded by inserting it into a predetermined loading position of a reproducing / recording apparatus main body for reproducing or recording the recording medium. In a recording medium loading device in which a tray is ejected from a loading position, a locking portion is formed on the tray, and a guide portion extending parallel to the insertion direction is formed on the reproducing / recording device main body. / The main body of the recording apparatus is provided with a movable body that is capable of reciprocating in the insertion direction, and the movable body is a swinging member that is swingable around an axis perpendicular to the insertion direction. The moving member is provided between the movable body and the rocking member, and a rocking member having a protruding portion that abuts on the guide portion and slides, and a contact portion that locks the locking portion. The protrusion contacts the guide with respect to the moving member. A spring for applying a spring force in a direction is provided, and the guide portion is formed with a recess into which the protrusion is fitted when the tray is brought to the loading position. The first inclined surface inclined so as to become the downstream side in the direction in which the spring force of the spring is applied from the end portion on the upstream side in the insertion direction toward the downstream side in the insertion direction, and the first inclined surface on the downstream side in the insertion direction. A second inclined surface inclined so as to become an upstream side in a direction in which a spring force is applied from an end portion toward a downstream side in the insertion direction, The recording medium loading device is characterized in that it includes a driving means that moves to the downstream side in the insertion direction until it is fitted in and is reciprocally driven in the ejection direction which is the opposite direction to the insertion direction. Further, the present invention is characterized in that the projecting portion is formed in an arcuate surface having a substantially uniform outer diameter centered on an axis extending in a direction perpendicular to the insertion direction. Further, the present invention is characterized in that a surface of the abutting portion which faces the locking portion is formed in an arcuate surface which is convex outward around an axis perpendicular to the insertion direction.

[0011]

According to the present invention, in the recording medium loading device, the tray having the recording medium mounted thereon and having the locking portion is inserted into the loading position of the reproducing / recording device main body and ejected from the loading position. It is configured. A guide portion extending parallel to the inserting direction is formed in the reproducing / recording apparatus main body, and the guide portion is provided with a moving body which is driven by a driving means and is capable of reciprocating in the inserting direction. A swing member is provided on the moving body, and the swing member has a protrusion that abuts the guide portion and an abutment portion that locks the locking portion of the tray. A spring force is applied in the contact direction. A recess is formed in the guide portion.

When the moving body is driven by the driving means and moves in the inserting direction, the swinging member urges the protruding portion toward the guide portion by the spring force. Move along. At that time, the contact portion locks the locking portion of the tray to guide the tray in the insertion direction. When the swing member moves and the projection reaches the recess, the projection is fitted into the recess by the spring force, the tray on which the recording medium is loaded is loaded in the loading position, and the loading is completed. The tray is ejected in the ejection direction by the reciprocating driving means.

Therefore, by inserting the tray with a simple structure,
The tray can be reliably loaded and held in the loading position.

According to the invention, since the arcuate surface is formed on the surface of the projection facing the guide portion, the projection is continuous between the first inclined surface and the second inclined surface of the recess. When fitted in the portion, the arcuate surface of the protrusion makes line contact with the two surfaces of the recess, the first inclined surface and the second inclined surface, in parallel to the axial direction perpendicular to the insertion direction. Therefore, the rocking member stably settles in the recess. Further, the protrusion can be smoothly pulled out from the recess when moving in the discharging direction.

Further, according to the invention, an arc surface is formed on a surface of the abutting portion facing the locking portion. Therefore, after the protrusion is fitted in the recess, even if the drive unit includes, for example, a gear train, even if the protrusion moves to the downstream side in the insertion direction along the second inclined surface due to backlash due to the gear train, Since the position where the contact part contacts the locking part moves in the direction perpendicular to the insertion direction along the arcuate surface, the tray locked by the contact part is prevented from moving in the insertion direction. Be done.

Therefore, after the tray is loaded in the loading position, the tray does not move in the insertion direction even if the swinging member moves downstream in the insertion direction, and is stably arranged in the loading position.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view showing a simplified portion of a loading device 30 according to an embodiment of the present invention.
Shows a state in which is loaded in the loading position. 2 is a plan view schematically showing the overall structure of a reproducing apparatus 31 for a compact disc 29 which is a recording medium, having the loading apparatus 30 shown in FIG. 1, and FIG. 3 is a reproducing apparatus shown in FIG. 3 is an exploded perspective view showing the entire compact disc player 32 including 31 in a simplified manner. FIG. The structure of the reproducing apparatus 31 for the compact disc 29 will be described with reference to these drawings.

A reproducing device 31 is arranged in the compact disc player 32, and a magazine body 47 in which trays 33 for mounting the compact discs 29 are stacked and arranged is stored on the left side of the reproducing device 31. The playback device 31 is moved up and down by the lifting device 55. The reproducing device 31 has a metal chassis 34, and synthetic resin guide members 110 for guiding the tray 33 on one side and the other side (upper and lower sides in FIG. 2) of the rear side of the chassis 34. Is provided, and the tray 33 is guided along the guide member 110 in the insertion direction 35 and the discharge direction 36 opposite thereto. Since the guide member 110 restricts the vertical displacement of the tray 33 in the vertical direction with respect to the one plane of the tray 33 on which the compact disc 29 is mounted, the vertical swing is prevented. A locking portion 49 is formed at one end of the tray 33 on the insertion direction 35 side (upper right of the tray 33 in FIG. 2), and a pair of positioning recesses is formed on the right side of the tray 33 on the insertion direction 35 side. 50 and 51 are formed. This positioning recess 5
A pair of positioning protrusions 52, 53 is provided at each part of the chassis 34 facing the 0, 51 to position the tray 33 in the insertion direction 35 when the tray 33 is inserted in the insertion direction and loaded in a predetermined loading position. To do. Further, the positioning recess 50 on one side of the tray 33 prevents displacement of the tray 33 in the horizontal direction, which is a direction perpendicular to the insertion direction 35 and the vertical direction, and performs accurate positioning.

The insertion direction 3 is provided near one side of the chassis 34.
5, a guide slot 37 extending in parallel with the guide slot 3 is formed.
The end portion of 7 on the discharge direction 36 side is formed in an arc shape toward one side portion of the chassis 34. Playback device 3 of the guide slot 37
A guide portion 37a having a recess 61 on one side portion on the front side of 1.
Is formed. A guide groove 38 extending parallel to the insertion direction 35 is formed at a position slightly closer to the front side of the reproducing device 31 from the guide elongated hole 37. A sensor 39 is provided at a portion facing one end of the guide groove 38 on the discharge direction 36 side.

FIG. 4 is a rear view schematically showing a part of the playback device 31 as seen from behind the chassis 34 (upper side in FIG. 2), and FIG. 5 is right side of the chassis 34 (right side of FIG. 2). It is a side view which simplifies and shows a part seen from. The guide portion 105 is formed by bending one side portion of the chassis 34 on the back side. A pair of guide holes 106 and 107 are formed in the guide portion 105 in parallel with the insertion direction 35 so as to be adjacent to each other in the longitudinal direction. The moving body 41 is provided adjacent to the guide portion 105,
A guide pin 108 protruding from the guide hole 107 is provided at the end of the moving body 41 on the side of the discharge direction 36, and the guide pin 108 is provided in
The guide pin 10 protruding from the guide hole 106 is provided at the side end portion.
9 is provided to guide the moving body 41 along the guide portion 105. A rack is formed on the moving body 41, and the pinion 43 is formed.
Driven by the first rack member 44, and the support portion 4 provided adjacent to the chassis 34 by being bent from the first rack member 44 at the end of the first rack member 44 on the insertion direction 35 side.
6 and. A swing member 54 having a contact portion 60 is swingably provided on the support portion 46.

FIG. 6 is a perspective view showing the moving body 41 and a driving means 66 for driving the moving body 41 in a simplified manner, and FIG. 7 is an exploded perspective view showing the reproducing apparatus 31 as a whole. 6 and 7 show the state viewed from the back side of FIG. 2, the tray 33 is omitted, and the chassis 34 is also omitted in FIG.

A locking projection 67 is provided on the support portion 46 of the moving body 41.
Is formed by a notch, and the second rack member 6 is provided between the locking protrusion 67 and the first rack member 44 of the moving body 41.
8 are provided. The second rack member 68 is connected to the clamp device 88 shown in FIG.

A metal fixing member 102 is attached to the chassis 34 on the back side (upper side in FIG. 7) of the chassis 34. The fixed member 102 is provided with an installation hole 104 in which the movable member 89 is installed. Discharging direction 3 of the fixing member 102
A clamp device 88 is provided at the end on the 6 side, and the mounting hole 1
A pair of recesses 90 formed on both sides of the insertion direction 35 of 04 and a pair of projections 91 of the movable member 89 are fitted so as to be angularly displaceable. The clamp device 88 angularly displaces the movable member 89 in a separating direction 92 in which the movable member 89 is separated from the chassis 34, and in a sandwiching direction 93 opposite thereto. The tray 3 is provided between the clamp device 88 and the side portion of the chassis 34 on the ejection direction 36 side.
Three insertion ports 94 are provided. The movable member 89 is provided with a pickup 40 that is movable in the insertion and ejection directions, reproduces information from the compact disk 29, and a motor 95 that drives the compact disk 29 to rotate. Compact disc 29
A turntable 48 for mounting the vehicle is provided. A clamper 96, which is urged toward the turntable 48 and is rotatable, is applied to a portion of the chassis 34 facing the turntable 48.
The tray 33 on which the compact disc 29 is mounted is inserted from the insertion port 94, and when the movable member 89 is angularly displaced in the clamping direction 93 by the clamp device 88, the compact disc 29 is moved by the clamper 96 and the turntable 48. The compact disk 29 is sandwiched, and the compact disk 29 is driven to rotate by the motor 95.

As shown in FIG. 6, the first rack member 44
Is a first meshing portion 42 in which a rack is formed over a distance L1 from one end on the insertion direction 35 side, and a first meshing portion that is continuous with the first meshing portion 42 and in which a rack is not formed over a distance L2.
And a non-meshing portion 97. The second rack member 68 has a second non-meshing portion 98 where the rack is not formed over a distance L3 from the one end in the insertion direction 35, and a second meshing portion where the rack is formed for a distance L4 and is continuous with the second non-meshing portion 98. And part 99. The second rack member 68 includes the tension spring 7
5, a spring force is applied to the ejection direction 36 side, and in the ejected state of the tray 33, the pinion 43 is locked to the chassis 34 so as to be located at the second non-meshing portion 98.

The pinion 43 is rotationally driven by a motor 72, which is a drive source, via a plurality of gears 71. Since the worm wheel 73 is provided on the rotating shaft of the motor 72, backlash hardly occurs between the worm wheel 73 and the gear 71 meshing with the worm wheel 73. The drive means 66 includes a motor 72 and a worm wheel 7.
3, a plurality of gears 71 and a pinion 43.

FIG. 8 is an exploded perspective view showing the moving body 41 in a simplified manner, and FIG. 9 is a perspective view showing the moving body 41 in a simplified manner. Note that FIG. 9 shows the state of the moving body 41 when viewed from the back side of FIG. A fitting portion 81 into which the torsion spring 58 fits is formed on the swing member 54 so as to rise from one surface of the swing member 54 and is integrally formed. The swing shaft 56 of the swing body 41 is inserted into the fit portion 81. The insertion hole 82 is formed. On the free end side of the rocking member 54, there is provided a protrusion 57 projecting from the guide elongated hole 37. The protrusion 57 has a substantially cylindrical shape and a large diameter portion 83 having a diameter larger than the width of the guide elongated hole 37. ,
The small diameter portion 8 which is continuous with the large diameter portion 83 and protrudes from the elongated guide hole 37.
4 and. The small diameter portion 84 has a substantially uniform outer diameter, for example, is formed in the shape of a right circular cylinder in this embodiment. The torsion spring 58 is fitted in the fitting portion 81, one end is locked by the first locking projection 59 formed by cutting out the support portion 46, and the other end is locked by the large diameter portion 83 of the projection 57. , A spring force is applied to the swinging member 54 in a direction away from the first rack member 44. A contact portion 60 is formed on the free end side of the swing member 54 so as to project in a direction away from the first rack member 44 and contact the locking portion 49 of the tray 33. An E-ring 85 is attached to the tip of the swing shaft 56.
Is provided to prevent the swinging member 54 from coming off.

In the compact disc player 32 having such a structure, when the operator presses the start button, the tray 33 on which the compact disc 29 having the reproducing device 31 selected by the elevating device 55 is mounted is arranged. Move up and down to the vertical position. Next, the motor 72 is driven to rotate the pinion 43 in the first rotation direction 100 that moves the moving body 41 in the insertion direction 35. The swinging member 54 coupled to the moving body 41 approaches the tray 33 while being guided along the arc of the guide elongated hole 37, and when the contact portion 60 contacts the locking portion 49 of the tray 33, the contact portion is contacted. Reference numeral 60 denotes a locking portion 49 for locking the tray 33 from the insertion opening 94 in the insertion direction 3
Insert into 5.

As shown in FIG. 6, at the end of the second rack member 68 on the insertion direction 35 side, the second locking projection 6 of the moving body 41 is provided.
A contact piece 74 that projects into the movement path of 7 is provided. The tray 33 is almost inserted, and the second locking projection 67 is attached to the contact piece 7.
4, the second rack member 68 moves in the insertion direction 35 against the spring force of the spring 75, and the second meshing portion 99 meshes with the pinion 43. The moving body 41 pushes the second rack member 68 in the insertion direction 35, and then inserts the tray 33 into a predetermined loading position. When the loading of the tray 33 is completed, the pinion 43 is separated from the first meshing portion 42, is located in the first non-meshing portion 97, and is movable.
The movement of 1 in the insertion direction 35 stops. The second rack member meshing with the pinion 43 continues to move in the insertion direction 35,
The movable member 89 is clamped in the clamping direction 93 via the clamp device 88.
Angular displacement. A contact piece 76 is provided at the end of the second rack member 68 on the insertion direction 35 side, and a sensor 77 is provided on the fixed member 102 so as to face the movement path of the contact piece 76. The movable member 89 is angularly displaced, and the compact disc 29
When the clamping is completed, the contact piece 76 of the second rack member 68 moving in the insertion direction 35 presses and displaces the actuating piece 78 of the sensor 77 as shown by an imaginary line 76a. The sensor 77 detects that the movable portion 89 has been clamped by the displacement of the operating piece 78, and stops the rotation of the motor 72.

When ejecting the tray 33, the pinion 4
The motor 72 is rotationally driven so that 3 is rotated in the second rotation direction 101 opposite to the first rotation direction. By the second rotation direction 101 of the pinion 43, first, the second rack member 68 meshed with the pinion 43 is driven in the discharge direction 36. The movable device 89 is angularly displaced in the separating direction 92 by the clamp device 88 connected to the second rack member 68, and the nipping of the compact disc 29 is released. After the pinching is released, when the contact piece 74 of the second rack member 68 presses the second locking projection 67 of the moving body 41, the moving body 41 moves in the discharging direction 3
6, the first meshing portion 42 meshes with the rack 43. At this time, the second meshing portion 99 of the second rack member 68 is disengaged from the pinion 43, and the second rack member 68 has the second non-meshing portion 98 of the pinion 43 due to the spring force of the tension spring 75.
Move to a position facing. The moving body 41 meshed with the rack 43 is guided in the discharging direction 36, and at this time, the abutting portion 60 of the swinging member 54 moves the discharging locking portion 103 formed at a position facing the locking portion 49 of the tray 33. The tray 33 is pressed to guide the tray 33 in the ejection direction 36. When the tray 33 is completely discharged and the swinging member 54 is separated from the discharge locking portion 103 of the tray 33 and reaches the end of the guide elongated hole 37, the moving body 4 is moved.
The contact piece 79 of No. 1 has the sensor 39 as shown by an imaginary line 79a.
The operating piece 80 is pressed and displaced. The sensor 39 detects the ejection of the tray 33 by the displacement of the operating piece 80 and stops the rotation of the motor 72.

The configuration of the moving body 41 will be described with reference to FIG. 1 again. The chassis 34 is shown in phantom in FIG. The contact portion 60 of the tray 33 in the loading position has the tray 3
It is positioned at the loading position by abutting on the locking portion 49 of No. 3. At this time, the protrusion 57 is formed in the guide portion 37a of the guide long hole 37.
The first inclined surface 62 and the second inclined surface 62 of the recess 61 formed in the V-shape
It is located in a continuous portion 64 with the inclined surface 63. Since the small diameter portion 84 of the protrusion 57 is formed in a right circular column shape, it is in linear contact with the first inclined surface 62 and the second inclined surface 63, respectively, and is stably positioned.

The moving body 41 is displaced by the backlash caused by the gear train of the driving means 66, and the small diameter portion 84 of the protrusion 57 is formed.
Even if is displaced along the second inclined surface 63 to the small diameter portion 65 indicated by the phantom line, as shown by the phantom line in FIG.
The part where the locking part 49 contacts with the locking part 49 moves perpendicularly to the insertion direction 35.

FIG. 10 is a simplified plan view showing a state where the tray 33 is mounted at the loading position. The tray 33 is positioned at the loading position by the swing member 54, and the displacement in the ejection direction 36 side is limited. Further, the displacement of the tray 33 toward the insertion direction 35 side is caused by the pair of positioning protrusions 52, 53.
The displacement is limited by.

FIG. 11 is an enlarged plan view showing the contact portion 60 of the swing member 54. An arc surface 86 is formed on the surface of the contact portion 60 facing the locking portion 49. When the protrusion 57 of the rocking member 54 is fitted in the recess 61, the arc surface 86 is formed.
When the contact point between the locking portion 49 and the locking portion 49 is a contact point P, the arc surface 86 is formed in an arc that is equal to or larger than a virtual circle 87 having a radius R with the contact point P as the outer circumference. Therefore, even if the small diameter portion 84 of the protrusion 57 is displaced along the second inclined surface 63 as described above, the position where the arcuate surface 86 and the locking portion 49 contact each other moves in the direction perpendicular to the insertion direction 35.

[0034]

As described above, according to the present invention, the recording medium loading device is configured to insert and eject the tray on which the recording medium is loaded into the reproducing / recording device main body. The swing member locks the tray, guides the tray in the insertion direction along the guide portion, and the protrusion of the swing member fits into the recess of the guide portion to dispose the tray at the loading position.

Therefore, by inserting the tray with a simple structure,
The tray can be stably arranged at the loading position.
Further, in the past, mechanical noise was generated due to the collision of the bias lever biased by the spring, but in the present invention, the mechanical noise is hardly generated, and the loading can be performed quietly.

Further, according to the present invention, since the surface of the protrusion facing the guide portion is formed into an arcuate surface, the rocking member can be stably settled in the recess when the tray is loaded. Further, when the tray is discharged and moved, it can be smoothly removed from the recess.

Further, according to the present invention, since the arcuate surface is formed on the surface of the abutting portion of the swinging member facing the support portion, when the tray is loaded in the loading position, for example, a drive having a gear train. Even if the protrusion moves to the downstream side in the insertion direction due to backlash of the means, the contact point between the contact portion and the support portion moves in the direction perpendicular to the insertion direction. Therefore, the tray can be stably arranged at the loading position without moving to the downstream side in the insertion direction.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing a part of a loading device 30 according to an embodiment of the present invention.

FIG. 2 is a plan view showing a simplified overall structure of a reproducing device 31 having the loading device 30 shown in FIG.

3 is an exploded perspective view showing the entire compact disc player 32 having the reproducing device 31 shown in FIG. 2 in a simplified manner.

FIG. 4 is a rear view showing a part of the playback device 31 as viewed from behind a chassis 34 in a simplified manner.

FIG. 5 is a simplified right side view of the reproducing device 31 seen from the right side of the chassis.

FIG. 6 is a perspective view showing a driving unit 66 in a simplified manner.

7 is a perspective view showing a state where the entire reproducing device 31 is viewed from the back side of FIG. 2. FIG.

FIG. 8 is an exploded perspective view showing a moving body 41 in a simplified manner.

FIG. 9 is a perspective view showing a moving body 41 in a simplified manner.

FIG. 10 is a simplified plan view showing a state where the tray 33 is loaded in the loading position.

FIG. 11 is an enlarged plan view showing a contact portion 60 of the swing member 54.

FIG. 12 is a plan view showing a simplified loading device of a conventional compact disc reproducing apparatus 1.

FIG. 13 is a simplified plan view showing a clamped state of a conventional loading device.

[Explanation of symbols]

 29 Compact Disk 30 Loading Device 31 Playback Device 32 Compact Disk Player 33 Tray 34 Chassis 35 Inserting Direction 36 Ejecting Direction 37 Guide Slot 37a Guide Part 38 Guide Groove 47 Magazine Body 49 Locking Part 54 Swing Member 55 Lifting Device 56 Swing Shaft 57 Projection 58 Torsion Spring 59 First Locking Protrusion 60 Abutment 61 Recess 62 First Inclined Surface 63 Second Inclined Surface 64 Continuous Part 66 Drive Means 86 Arc Surface

Claims (3)

[Claims] 1. A tray on which a recording medium is loaded is inserted into a predetermined loading position of a reproducing / recording device body for reproducing or recording the recording medium, and the tray is ejected from the loading position. In the loading device of the recording medium, the tray is formed with a locking portion, the reproducing / recording apparatus main body is formed with a guide portion extending parallel to the inserting direction, and the reproducing / recording apparatus main body is inserted with the inserting direction. A movable body that is reciprocally movable in the movable body, the movable body being a swingable member that is swingable around an axis line that is perpendicular to the insertion direction. And a swing member having a contact portion that locks the locking portion, and a protrusion that is provided between the moving body and the swing member Applies a spring force in the direction in which it contacts the guide. And a groove is formed in the guide portion, into which the protrusion is fitted when the tray is brought to the loading position, and the recess is formed on the upstream side in the insertion direction of the guide portion. A first inclined surface inclined so as to become a downstream side in a direction in which a spring force of the spring is applied from an end portion toward a downstream side in the insertion direction, and a downstream end in the insertion direction from an end portion on the downstream side in the insertion direction of the first inclined surface And a second inclined surface that is inclined so as to become an upstream side in a direction in which a spring force is applied, the movable body is inserted from an upstream side in the insertion direction until the protrusion fits in the recess. And a drive unit that reciprocally drives in a discharge direction which is a direction opposite to the insertion direction of the recording medium. 2. The projection is formed in an arcuate surface whose surface facing the guide is substantially uniform in outer diameter about an axis extending in a direction perpendicular to the insertion direction. 1. A recording medium loading device according to 1. 3. The recording according to claim 1, wherein a surface of the abutting portion facing the locking portion is formed in an arcuate surface which is convex outward about an axis perpendicular to the insertion direction. Media loading device.