JPH067492Y2 - Record carrier loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention provides a compact disc, which is a record carrier, in a cartridge, and a player equipped with a turntable for mounting the disc and a laser pickup for reading information. The present invention relates to a record carrier mounting device for loading and unloading a cartridge.

[Prior Art] Conventionally, there is a technology in which a cartridge containing a disk is supported by a cartridge holder and the holder is slid by an in / out mechanism to move to a set position or an eject position.

[Problems to be Solved by the Invention] In the above-mentioned conventional technique, the cartridge holder is moved horizontally from the take-out position, and at the end of the movement, the cartridge holder is moved almost directly below and moved to the set position. However, there was a problem that the durability was lowered.

[Means for Solving the Problems] Therefore, the present invention is to mount a record carrier in which a cartridge containing a record carrier is supported by a cartridge holder and the holder is slid by an ejecting mechanism to move to a set position or an eject position. In the apparatus, a guide carrier for slidingly guiding the cartridge holder is provided with a guide groove, and a direct descending portion for lowering the cartridge holder substantially right below the insertion end is formed in the guide groove. An inclined portion is formed in the middle portion of the guide groove before the straight descending portion, and the cartridge holder is lowered by the step of the inclined portion during insertion.

[Operation] Therefore, since the cartridge holder is lowered once during the insertion, and is then lowered substantially right below the insertion end, the amount of lowering at the insertion end of the cartridge holder is small, and the lowering impact can be reduced, and the durability is improved. It is possible to prevent deterioration of sex.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. First
FIG. 5 is a plan view, FIGS. 2 and 3 are side views, FIG. 4 is a bottom view, FIG. 5 is a plan view of the cartridge, FIG. 6 is an enlarged plan view, and as shown in FIG. Box type cartridge
(1) An upper lid (2) is provided on the upper surface so that it can be opened and closed, and a compact disc (3), which is a record carrier for recording information, is attached to a cartridge (1).
The chuck plate (4), which is built in the disk, and is brought into contact with the upper surface of the disk (3), is loosely fitted and supported by the upper lid (2). Further, a shutter (6) for opening and closing the opening (5) on the lower surface of the cartridge (1) is provided, the shutter (6) is slidably attached to the cartridge (1), and the drawing hole (7) and the front and back reverse prevention arc are provided. The part (8) is formed on the side surface of the front end of the cartridge (1), and the reference hole (9) is formed on the lower surface of the rear end of the cartridge (1).

Further, as shown in FIGS. 1 to 4, the fixed chassis (1
0) and the movable chassis (11), and the movable chassis (11) can be shaken freely on the fixed chassis (10) via the cushion rubber (12), the connecting plate (13), the pivot screw (14), etc. A box-shaped outer case (16) that is attached to the front plate (15)
Install the fixed chassis (10) inside.

Further, as shown in FIGS. 6 and 7, the movable chassis (1
Left and right guide plates (17) (18) are erected on both upper surfaces of (1), and front and rear guide grooves (19) (20) that are long in the front-rear direction are provided in each guide body (17) (18).
And slide the gate-shaped slider (21) between the left and right guide bodies (17) and (18) so as to slide and move up and down, and attach one end of the front and rear roller shafts (22) and (23) to the slider. (21) Fix each on both sides, and insert the roller shafts (22, 23) in the middle of the guide groove (1
9) (20) is slidably fitted and inserted into the roller shaft (22) (2
The vertical movement prevention rollers (24) and (25) are pivotally supported on the other end of (3).

Then, between the upper rail (26) formed by bending the upper end of the fixed chassis (10) and the lower rails (27) fixed on both inner surfaces of the chassis (10), the rollers (24) (25 ) Is slidably engaged, and the movable chassis (11) is prevented from moving up and down by the engagement of the rollers (24) (25) and the rails (26) (27).

Further, a cartridge holder (28) for slidably inserting the cartridge (1) is provided, and the holder (28) is slidably and vertically slidably fitted on the slider (21).
One ends of the front and rear guide shafts (29) and (30) are fixed to both sides of the holder (28), respectively, and the guide shaft (29) is inserted into the front and rear descending grooves (31) and (31) formed in the slider (21) as shown in FIG. Insert the middle of (30),
The other ends of the guide shafts (29) and (30) are slidably engaged with the front and rear guide grooves (19) and (20) of the guide bodies (17) and (18). Then, as shown in FIGS. 8 to 13, the long horizontal portion (32), the inclined portion (33), the short horizontal portion (34), and the straight descending portion (35) are provided in the guide groove.
The guide shaft (29 (30) is guided downward by the straight descending portion (35) to lower the cartridge holder (28) substantially right below the insertion end while being formed continuously on (19) and (20). By manually inserting the cartridge (1) into the holder (28) in the state shown in the drawing, the guide shafts (29) and (30) reach the end of the short horizontal portion (34).
The slider (21) and the holder (28) slide integrally to the state shown in FIG. 0, and only the slider (21) further slides, so that the holder (28) descends almost directly below as shown in FIG. Then
As shown in FIG. 13, the slider (2
1) is configured to descend.

Further, as shown in FIG. 6, the cartridge (1) is provided with a retracting boss (36) which is a retractable body which is engageably and disengageably locked.
The boss (36) is attached to the cartridge holder (28) so that it can move back and forth, and the advancing spring (3) is attached to the spring chamber (37) of the left guide body (17).
8) is provided, one end of the spring (38) is fixed by the fixed shaft (39), and the other end of the spring (38) is brought into pressure contact with the boss (36) so that the boss (36) is placed inside the holder (28). Hold the advance.

Then, manually insert the cartridge (1) into the holder (28),
When the front end of the cartridge (1) is brought into contact with the push-in stopper (40) formed integrally with the holder (28), the boss (36) comes in contact with the side surface of the cartridge (1) and retracts, and the boss (36) moves by the spring (38).
(36) advances and engages in the pull-in hole (7) of the cartridge (1), and the entry operation (sliding) of the cartridge holder (28)
When the boss (36) is separated from the spring (38) by the boss (36), the boss (36) comes into contact with the guide surface of the slider (21) inside the guide body (17), and the boss (36) comes into contact with the guide body (17). ) Is configured to prevent retreat and maintain engagement with the cartridge (1).

Further, as shown in FIGS. 1, 6, and 14 to 16, the drive frame (41) is fixedly mounted on the movable chassis (11), and the slide (21) and the cartridge holder (28) are inserted. And, an in-and-out motor (42) to be advanced is attached to the frame (41), a worm (43) is provided on the output shaft (42a) of the motor (42),
A worm wheel (44) is constantly meshed with the worm (43), a reduction gear (45) is provided integrally with the wheel (44), and is supported by a fixed shaft (46) of the frame (41). The drive gear (47) is always meshed with (45), and the drive gear (47) is provided with a pinion gear (48) that is connected to the drive gear (47) in a freely rotatable manner.The gears (47) and (48) are arranged coaxially. Fixed axis of the frame (41)
A rack gear (50), which is pivotally supported by (49) and is meshed with the pinion gear (48), is fixed to the slider (21), and the mechanism (51) for moving the cartridge holder (28) to the set position or the take-out position (51). ) Is composed.

Then, as shown in FIG. 15, the stopper of the pinion gear (48)
A boss (53) that abuts (52) is provided on the drive gear (47), and a return spring (54) is stretched between the drive gear (47) and the pinion gear (48), and the force of the spring (54) is increased. Supports the stopper (52) away from the boss (53) by the rack gear (5
(0) starts to mesh with the pinion gear (48), the drive gear (4
7) Pinion gear against the return spring (54)
(48) is constructed so as to idle by a certain angle.

Further, the frame (41) is provided with an entrance switch (55), and the rack gear (50) is integrally formed with an operation rib (56),
When the slider (21) moves inward, the pinion gear (48) idles and the rack gear (50) meshes with the gear (48), and then the switch (55) is turned on by the rib (56) to turn on the motor (42). ) Is operated to drive the pinion gear (48), and the slider (21) is moved into the automatic retracting operation.

Further, as shown in FIG. 1 and FIG.
(1) A shutter opener (58), which is a restriction arm elastically supported by a projecting spring (57) in the take-out direction, is provided, and one end of the opener (58) is rocked on the drive frame (41) via a fulcrum shaft (59). In addition to rotatably supporting the shaft, a guide pin (60) is provided on the other end of the opener (58) to prevent the cartridge holder (28) from entering due to the protruding action of the opener (58) when the cartridge (1) is taken out. In order to do so, the guide pin (60) of the opener (58) is brought into contact with the holder (28), the opener (58) is retracted by the cartridge (1) to be inserted into the holder (28), and the holder (2
8) is operated to enter, and the shutter opening arm (61) is formed at the end of the opener (58) provided with the guide pin (60), and the shutter of the cartridge (1) to be inserted into the holder (28).
(6) The arm (61) is brought into contact with one end of the opener (58).
The shutter (6) is opened by swinging the.

Also, a long hole into which the guide pin (60) is slidably engaged.
(62) is opened in the cartridge holder (28), and the entry blocking arc portion (6) which is a part of the circumference centered on the fulcrum shaft (59) is formed.
3) and the shutter opening linear portion (64) are formed in the elongated hole (62), and when the guide pin (60) is moving in the arc portion (63) by the insertion of the cartridge (1), the opener ( The cartridge holder (28) is fixedly supported by the projecting action of (58) .When the pull-in boss (36) is inserted into the pull-in hole (7) of the cartridge (1), the guide pin (60) is curved. Part (63) to straight part
It is configured to move to (64) and the holder (28) starts to enter.

Further, as shown in FIG. 1, FIG. 4, and FIG. 17 to FIG. 19, a turntable (65) on which the disc (3) is placed is provided, and a turntable (67) that is rotated by a motor (66) is turned. The table (65) is fixed and the movable chassis (11)
The motor (66) is fixed to the reproducing section chassis (68) fixed to the. On the other hand, a leather pickup (69) for reading the information of the disc (3) is fixed to the pickup holder (70),
The frame (70) slidably supports the reproducing section chassis (68) via the guide rails (71) (71), and the holder
Pickup drive linear motor (7
2) (73) is attached to the playback unit chassis (68).

Also, as shown in FIGS. 18 and 19, the disk (3)
Attaching the chucking magnet (74) that fixes and supports the
(75) It is fixed on the upper surface and the central hole (76) of the disc (3)
A centering ring (77) that is detachably engaged with the base (75).
Of the supporting leg (78) is fixed to the turntable (65) by inserting it loosely into the hole (79) of the turntable (65) and the mounting base.
A ring (77) is provided between (75) so that it can be raised and lowered.

Then, the center hole (81) of the centering ring (77) is slidably fitted to the upper end of the rotary shaft (67) for fixing the turntable (65) by the screw (80) only in the axial direction, A fitting spring (82) is provided to lift and support the centering ring in a freely descending manner.The magnetic plate (8) is attached to the chuck plate (4) provided in the cartridge (1).
When the cartridge (1) inserted in the cartridge holder (28) is moved to the set position of the turntable (65), the chuck plate is attracted by the magnetic force of the magnet (74).
(4) is fixed to the upper surface of the turntable (65) by suction, and the center runout of the disc (3) is corrected by raising and lowering the centering ring (77). The ring (77) is engaged so that the disc (3) is held by the chuck plate (4) on the turntable (65).

Further, as shown in FIG. 1, the holder springs (84) and (84) are provided on the cartridge holder (28), and the cartridge (1) to be inserted into the holder (28) is attached to the bottom receiving surface (85) (85) of the holder (28). As shown in Fig. 6, the reference pillars (86) and (86) are erected on the upper surface of the movable chassis (11) and the disc is mounted on the turntable (65).
When the holder (28) is lowered to mount (3), insert the reference pillars (86) (86) into the reference holes (9) (9) on the bottom surface of the cartridge (1) and set the cartridge (1) at the set position. It is configured to hold.

Further, as shown in FIGS. 1, 4, and 6, a forward / backward movement preventing lever (88) is swingably provided on the movable chassis (11) via a fulcrum shaft (87), and a fixed chassis (10) is provided. The front-rear movement blocking notch (90) that is detachably engaged with the fixed shaft (89) of the lever (8)
8) and the pin (92) of the operation arm (91) integrally formed with the slider (21) is connected to the cam groove (9) of the lever (88).
3) Engage the notch (90) with the fixed shaft (89) with the cartridge (1) taken out to prevent the movable chassis (11) from moving back and forth, while inserting the cartridge (1). Then, when the slider (21) is moved in, the lever (88) is rocked in conjunction with the moving-in operation, and the notch (90) is moved from the fixed shaft (89).
Is configured to be released.

In addition, the movable chassis (11) is provided with a stop switch (95) via the mounting frame (94), and the operating piece (96) is integrally formed with the operating arm (91) of the slider (21) to form the slider (21). At the end of the entry, the stop switch (95) is turned off by the operation piece (96), the motor (42) is stopped, and the loading operation is completed.

Also, as shown in FIG. 4, the leather pickup (69)
Is equipped with a pickup lock lever (97) that locks the
(11) The middle of the lever (97) is swingably supported on the lower surface side through a fulcrum shaft (98), and a pin (99) and an elongated hole (100) are provided.
Through the lock lever (97) to the forward / backward movement preventing lever (88)
Of the pickup holder (70).
1) The engaging piece (102) at the other end of the lock lever (97) is disengageably locked, and the notch (90) is disengaged from the fixed shaft (89). ) Are linked, and the collision condition (1
The engaging piece (102) is moved away from the (01) so that the pickup (69) can be operated.

Further, as shown in FIG. 20, the entrance (15a) of the front plate (15)
A door (103) that can be opened and closed is provided on the cartridge holder (28) when the cartridge (1) is inserted.
The door (103) is brought into contact with the top, the cartridge (1) is inserted into the holder (28), and the hollow portion of the cushion rubber (12) provided between the fixed chassis (10) and the movable chassis (11). The movable chassis (11) is fixed while the movable chassis (11) is fixed due to the descending step of the sloped part (33) formed in the guide grooves (19) and (20) of the guide bodies (17) and (18) by incorporating the vibration-proof spring (105). Even if the upper surface of the holder (28) is brought close to the upper surface of the outer case (16), the movable chassis (1
When 1) is in a floating state, it is possible to form a large gap between the outer case (16) and the upper surface of the holder (28), and to prevent the movable chassis (11) supported by the vibration-proof spring (105) from swinging in the vertical direction. It is configured so that it can be set large and the outer case (16) can be formed low.

As shown in FIG. 1, the front plate (15) is provided with an eject switch (106) and an eject button (107).
By operating the eject button (107) with the cartridge (1) attached, the loading / unloading motor (42) reversely moves and the cartridge holder (28) is moved to the removal position,
The cartridge (1) is configured to be ejected.

Further, as shown in FIG. 6 and FIG. 21, the reverse insertion prevention stopper (109) is swingably provided on the bottom receiving surface (85) of the cartridge holder (28) via the support shaft (108), and At the entry position of (1), the stopper (10
When the cartridge (1) is inserted in the normal position with the surface facing up, the stopper (109) is opened to the outside of the track by the front and back reverse insertion prevention arc part (8) of the cartridge (1). While operating, letting the cartridge (1) enter further,
When the cartridge (1) is inserted with the front and back facing upward, the stopper (109) engages and abuts on the front end of the cartridge (1) to prevent the cartridge (1) from entering.

This embodiment is constructed as described above, and is shown in FIGS.
Cartridge (1) of FIG. 5 in the state shown in FIGS.
Is pushed into the cartridge holder (28) by opening the door (103) from the entrance (15a) of the front plate (15). And the holder (2
When the cartridge (1) is elastically pressed downward by the presser spring (84) within the cartridge 8) and the cartridge (1) is in the normal posture, as shown in FIG. 21, the circular arc portion (8) on the front surface of the cartridge (1).
Then, the stopper (109) is opened, and the cartridge (1) is further inserted.

Further, as shown in FIG. 22, the opening arm (61) of the chassis opener (58) is released by the insertion of the cartridge (1).
(6) is engaged and the shutter (6) is opened to open the opener (58).
Retreat. At this time, since the guide pin (60) moves in the arcuate portion (63) of the elongated hole (62), the cartridge holder (28) is stopped at the take-out position by the supporting action of the opener (58).

In addition, the tip of the cartridge (1) should be attached to the stopper (4
The lead-in pin (36) is engaged with the lead-in hole (7) of the cartridge (1) while being in contact with the cartridge (1).

In addition, when the cartridge (1) is inserted, the guide pin
(60) moves in the straight part (64) of the slot (62),
The cartridge holder (28) and the slider (21) slide so that the (36) abuts the guide body (17) to prevent the withdrawal, and the rack gear (50) meshes with the pinion gear (48).

Then, in the state shown in FIGS. 9 and 23, the switch (55) is turned on by the rib (56) of the rack gear (50), and the motor (42)
Is rotated to drive the rack gear (50) in the approach direction. At this time, even if a force is applied to the cartridge (1) from the outside by hand, the boss (36) is engaged with the cartridge (1), so that the cartridge (1) can be prevented from being pulled out.

Further, the motor (42) is used to control the slider (21) and the holder.
(28) is automatically pulled in, and as shown in Fig. 9, the guide shaft (29)
As (30) reaches the inclined portions (33) (33) of the guide grooves (19) (20), as shown in FIG. 23, the shutter is made larger than the diameter of the centering ring (77) of the turntable (65). (6) is opened by the opener (58).

Further, the cartridge holder (28) is continuously moved in, and as shown in FIG. 10, the guide shafts (29) and (30) are aligned with the guide grooves.
By reaching the straight descending part (35) of (19) (20), the vertical movement prevention rollers (24) (25) escape from the rails (26) (27), and
As shown in FIG. 24, the guide pin (60) of the opener (58) moves to the end of the straight portion (64) of the elongated hole (62) formed in the holder (28), and the front end of the shutter (6) and the guide. By setting the front-to-back spacing with the pin (60), the retract boss (36) and the retract hole
Even if a fitting error occurs with (7), the reference hole (9) of the cartridge (1) can be arranged on the same vertical line with respect to the reference column (86).

Further, since only the slider (21) further swings in the state of FIG. 10, the guide shaft (see FIG. 11 and FIG. 12) is guided by the guide of the descending grooves (31) and (31) of the slider (21). 29) and (30) descend the straight descending portion (35) of the guide shafts (19) and (20) to lower the cartridge (1). As shown in FIG.
(3) descends on the turntable (65), the chuck plate (4) is attracted to the turntable (65) by the magnet (74),
Disc by turntable (65) and chuck plate (4)
Hold (3).

Further, as the slider (21) slides, the forward / backward movement preventing lever (88) is swung, and the notch (90) of the lever (88) is fixed to the fixed shaft (89) as shown in FIGS. 25 and 26. To support the movable chassis (11) in a swingable manner.
As shown in Fig. 3, the roller shafts (22) and (23) are supported by the short horizontal parts (34) and (34) of the guide grooves (19) and (20), and the supporting height of the slider (21) is lowered to the outside. By increasing the distance from the top of the case (16), you can set a large amount of vertical vibration of the movable chassis (11),
Moreover, the vertical width of the outer case (16) can be reduced.

Further, as the blocking lever (88) is disengaged from the fixed shaft (89), the lock lever (97) swings in conjunction with the blocking lever (88) as shown in FIG. Engagement piece (102)
Separates from the ridges (101) of the pickup holder (70) to allow the pickup (69) to move. In the state shown in FIG. 25, the disc (3) can be driven and information can be read by the pickup (69). Done.

Further, by pressing the eject button (107), the pickup (69) comes closest to the turntable (65) and stops, and the input / output motor (42) rotates in the reverse direction to move the rack gear (5).
0) is driven to exit, and conversely to the above, each lever (88) (9
Movable chassis (11) and pickup holder (7)
0) is fixed, the cartridge holder (28) rises as the slider (21) exits, and the disc (3) turns into a turntable.
(65) The slider (21) and the disc holder (28) are integrally retracted as they are lifted up, and the pinion gear (4
The rack gear (50) is disengaged from (8), the opener (58) is retracted by the spring (57), the disc holder (28) is moved to the eject position, and the cartridge (1) is inserted from the inlet (15a) of the front plate (15). ) Is discharged to return to the state of FIG.

By providing the guide grooves (19) and (20) with the inclined portions (33) and (33), the slider (21) can be mounted in the cartridge (1) mounted state.
Although it was possible to lower the support position of the disc, the cartridge holder (28) was moved up and down to turn the disc (3) into the turntable (6
5) Direct descending part (35) (35) of the guide groove (19) (20) to raise and lower
Since the length of the slider can be shortened by the step of the inclined portion (33), the inclination angle of the descending groove (31) of the slider (21) can be reduced with the same sliding amount of the slider (21), Slider
The sliding load of (21) could be reduced.

"Effects of the Invention" As is apparent from the above embodiments, the present invention provides a record carrier (3).
Cartridge (1) with built-in cartridge holder (28)
A record carrier mounting device for supporting the cartridge holder (28) and sliding the holder (28) by the loading / unloading mechanism (51) to move it to a set position or a take-out position. 17) and (18) are provided with guide grooves (19) and (20), and straight descending portions (35) and (35) for lowering the cartridge holder (28) substantially right below the insertion end are provided with the guide grooves (19) ( In the recording carrier mounting device formed in 20), the direct descending portion (35)
In the middle of the guide groove (19) in front of (35), the inclined part (33) (3
3) is formed, and the cartridge holder (28) is lowered by the step of the inclined portions (33) (33) during the insertion, and after the cartridge holder (28) is once lowered during the insertion, The cartridge holder (28)
The amount of lowering at the insertion end of the cartridge can be reduced, the lowering impact can be reduced, the deterioration of durability can be prevented, and the required strength of the cartridge holder (28) and its supporting member and the like can be reduced. It is possible to achieve a practical effect such that the structure can be simplified and the cost can be easily reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 and FIG.
The figure is a side view, FIG. 4 is a bottom view, FIG. 5 is a plan view of the cartridge, FIG. 6 is an enlarged explanatory view of FIG. 1, FIG. 7 is an exploded side view, and FIGS. Explanatory drawing, FIGS. 14 to 16 are explanatory views of the loading / unloading mechanism, FIG. 17 is a sectional front view,
18 and 19 are explanatory views of a turntable, and FIG.
0 to 26 are explanatory views of the cartridge mounting operation. (1) ... Cartridge (3) ... Disc (record carrier) (17) (18) ... Guide body (19) (20) ... Guide groove (28) ... Cartridge holder (35) ... Straight descending part (51) ... mechanism

Claims (1)

[Scope of utility model registration request] 1. A cartridge (1) containing a record carrier (3) is supported by a cartridge holder (28), and the holder (28) is slid by an ejecting mechanism (51) to move to a set position or an ejected position. A recording carrier mounting device for allowing the cartridge holder (28) to be slidably guided by providing guide grooves (19) (20) in the guide body (17) (18), and
In the record carrier mounting device in which the guide groove (19) (20) is formed with a straight descending portion (35) (35) for lowering 8) substantially directly below the insertion end, from the straight descending portion (35) (35) The guide groove (1
9) A record carrier mounting device, characterized in that an inclined portion (33) (33) is formed in an intermediate portion and the cartridge holder (28) is lowered by a step of the inclined portion (33) (33) during insertion.