JPH0624038Y2 - Cartridge loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention relates to a player having a recording disk such as a compact disk built in a cartridge, a turntable for mounting the disk, and a pickup for recording and reading information. The cartridge loading device.

"Prior Art" Conventionally, there has been a technology of moving a cartridge supported by a cartridge holder in and out by a slider to move a disk of the cartridge to a drive position or an eject position.

[Problems to be solved by the invention] In the above-mentioned conventional technology, the mechanical part is attached to the fixed chassis via cushion rubber to prevent vibration and shock from being transmitted to the mechanical part, and when the mechanical part shakes, the cartridge moves in and out. The mechanical part is fixed to the fixed chassis at the time of ejection because it cannot be performed easily, but if the mechanical part shakes significantly due to an extremely large impact at the time of loading, the mechanical part will be fixed chassis or outer case etc. There was a problem of being damaged by hitting.

"Means for Solving the Problems" However, the present invention provides a cartridge loading device in which a movable chassis mounted on a fixed chassis via cushion rubber is mounted, and a slider for loading and unloading a cartridge is mounted on the movable chassis. A pair of front and rear lock shafts are projected on the left and right side surfaces, and standing walls cut and raised from the fixed chassis are arranged on the left and right outer sides of the slider, and the standing walls have a wide elongated hole portion and a narrow elongated hole portion. A vertical movement regulating groove is provided, and the lock shaft is moved in the outer vertical movement regulating groove, and the vertical slot of the vertical movement regulating groove is narrowed during ejection to prevent the slider and movable chassis from moving up and down. The wide oblong hole allows the vertical movement of the slider and the movable chassis within a predetermined range.

[Operation] Therefore, the slider and the movable chassis forming the mechanical portion can be fixedly supported by the fixed chassis at the time of ejecting with a simple structure only by changing the groove width of the vertical movement restricting groove, while the slider and the movable chassis can be supported at the time of loading. The slider and the movable chassis can be vibrated within a range in which they do not damage the fixed chassis or the outer case, and the mechanical portion can be appropriately protected from vibration and impact as compared with the conventional case.

[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 and 20, a fixed chassis (10) and a movable chassis (11) are provided,
The movable chassis (11) is swingably attached to the fixed chassis (10) via the cushion rubber (12), the connecting plate (13), the pivot screw (14), etc., and the front plate (15) is a square. The fixed chassis (10) is installed inside the box-shaped outer case (16).

Further, as shown in FIGS. 6 and 7, the movable chassis (1
Left and right guide bodies (17) (18) are erected on both upper surfaces of (1), and front and rear guide grooves (19) (20) long in the front-rear direction are provided in each guide body (17) (18).
And the guide-shaped sliders (21) are slidably and vertically slidably inserted between the left and right guide bodies (17) and (18) when viewed from the entrance and exit directions of the cartridge (1), and the front and rear lock shafts (22) One end of (23) is fixed to the outside of the vertical portion on both sides of the slider (21), and the slider (21) for inserting and removing the cartridge (1)
The lock shaft (22) (23), which is a lock body, is provided in the lock shaft (22) (23) while the cartridge (1) is ejected.
Fix the vertical movement control groove (24) (25) that engages the chassis (10)
It is provided on the upright wall (26).

Then, the middle of the lock shaft (22) (23) is guided in the guide groove (19) (20).
It is slidably penetrated to the lock shaft (22) (23)
Insert the tip into the restriction groove (24) (25) and lock shaft (2
2) Adjust the vertical movement restricting parts (27) and (27) with the same width as the (23) diameter,
(24) (25) While forming on the front end part, the rear end side of the regulation groove (24) (25) was formed to be wider than the guide grooves (19) (20) and in a substantially similar shape, and the cartridge (1) was taken out. At this time, the lock shafts (22) and (23) are fitted to the vertical movement restricting portions (27) and (27) to prevent the slider (21) and the movable chassis (11) from moving up and down, and the slider (21) and the movable chassis (21). The (11) is configured to be fixedly supported by the fixed chassis (10).

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, the vertical portions on both sides of the slider (21) and both sides of the cartridge holder (28) are slid on the left and right guide bodies (17) and (18) by the lock shafts (22) and (23) and the guide shafts (29) and (30). It is attached freely.

Further, as shown in FIGS. 8 to 13, the long horizontal portion (3
2), the inclined part (33), the short horizontal part (34), and the straight descending part (35) are continuously formed in the guide grooves (19) (20), and the guide shaft (29)
Guide the (30) downward with the straight descending section (35) to guide the cartridge holder.
(28) is lowered almost right below the insertion end. When the cartridge (1) is manually inserted into the holder (28) in the state shown in FIG. 8, the guide shafts (29) and (30) move to the short horizontal part ( 34) The slider (21) and the holder (28) slide integrally to the state shown in FIG. 10 until the end, and only the slider (21) further slides, so that the holder (28) as shown in FIG. ) Descends substantially right below, and the slider (21) descends by the descending step of the inclined portion (33) as shown in FIG.

Further, as is clear from FIGS. 9 and 11, a descending groove (31) which is a descending guide of the slider (21) for inserting and removing the cartridge (11) and a guide body for slidably supporting the slider (21). (17) With the inclined portion (33) which is the downward guide of (18), the cartridge holder (28) is guided downward through the guide shafts (29) and (30), and the downward groove (31) and the inclined portion ( 33) by cartridge
It is configured such that the amount of descent of (1) is shared and the cartridge (1) is moved in the vertical direction by the level difference between the descent groove (31) and the inclined portion (33).

Further, as shown in FIG. 6, the guide shaft (29) (30) having the base end portion fixedly mounted on the cartridge holder (28) is attached to the guide body (17).
(18) A disc spring disk member (29a) that is a bulge member that extends outward and slides on the outer surface of the guide body (17) (18).
(30a) is fixed to the tip of the left guide shaft (29) (30), and the mounting distance between the left guide body (17) and the cartridge holder (28) is set to be approximately the same as the plate thickness of the slider (21). While doing
The mounting interval (l) between the guide body (18) on the right side and the cartridge holder (28) is made larger than the plate thickness of the slider (21).
Discs (29a) (30a) that are bulging members are provided only on the left guide shafts (29) (30) that support the left side of (8).
A) (30a) and the guide shafts (29) and (30) are configured to restrict the lateral movement of the slider (21).

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 one side of the cartridge holder (28) so that the boss (36) can freely move in and out, a leaf spring (38) is provided in the spring chamber (37) of the left guide body (17), and a spring (38) is provided by a fixed shaft (39). ) Fixed one end,
The other end of the spring (38) is brought into pressure contact with the boss (36) to hold the boss (36) projecting inside one side surface of the holder (28).

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) integrally formed with the holder (28), the boss (36) hits the side surface of the cartridge (1) and resists the spring (38), and the holder (28). Retract outwards and spring (38) causes boss (36) to move to holder (2
8) When the boss (36) separates from the spring (38) due to the insertion operation (sliding) of the cartridge holder (28) while protruding inward and engaging with the drawing hole (7) of the cartridge (1), (3
6) contacts the guide surface of the slider (21) inside the guide body (17),
The contact with the guide body (17) prevents the boss (36) from retracting toward the outside of the holder (28) and maintains the engagement with the cartridge (1).

Further, as shown in FIGS. 1, 6, and 14 to 16, a drive frame (41) is fixedly mounted on the movable chassis (11), and a slider (21) and a cartridge holder (28) are inserted. And an exit / entry motor (42) to be withdrawn and attached to the frame (41), and 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 fixed to the pinion gear (48) is fixed to the slider (21), and the cartridge holder (28) is inserted into or withdrawn from the set position. It constitutes (51).

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.

In addition, the return spring (54) through the dual structure of the gear (47) (48) that elastically rotates in one direction, through the cartridge
The cartridge (1) loading motor (42) is connected to the rack gear (50) of the slider (21) that moves the (1) in and out, and the elastic rotational force of the double gears (47) and (48) is applied to the slider (2).
It is applied in the ejecting direction of 1), and transmits the rotation of the motor (42) to the rack gear (50) and the slider (21).
The drive gear (47) is rotated by the force of the return spring (54) after the motor (42) is stopped, and the rack gear (50) is reliably separated from the drive gear (47) when the eject gear is ejected. Is configured.

In addition to providing a switch (55) on the frame (41),
An operating rib (50a) is integrally formed on the rack gear (50), and the pinion gear (48) idles due to the inserting operation of the slider (21) so that the rack gear (50) meshes with the gear (48), and then the rib The switch (55) is turned on by (50a), the motor (42) is actuated to drive the pinion gear (48), and the automatic pull-in operation of inserting the slider (21) is performed.

Further, as shown in FIG. 17, a stop switch (56) for stopping the operation of the motor (42) for inserting the slider (21) through the rack gear (50) is provided, and the switch (56) is provided for the movable chassis (11). ) An interlocking gear (47a) integrally formed with the drive gear (47) and a fan-shaped switchgear (47b) meshing with the interlocking gear (47a) are provided while being fixed to the lower surface side. 47b) is supported by the fixed shaft (46) as an idle shaft, and when the slider (21) is completely inserted, the switchgear (47b)
The stop switch (56) is operated by means of this to control the stop of the motor (42), and a switch gear (47b) is provided coaxially with the worm wheel (44) which is a gear for obtaining the loading force of the cartridge (1), The switch (56) for controlling the cartridge (1) loading motor (42) is connected to the switch gear (4
It is configured to switch by 7b).

Further, as shown in FIGS. 1 and 6, the shutter of the cartridge (1) is interlocked with the mounting operation of the cartridge (1).
While having a shutter opener (58) to open (6),
Shutter opener (58) at the end of mounting the cartridge (1)
A spring (57) stretched substantially in parallel with the shutter opener (58) is connected to the shutter opener (58), and the spring (57) force is exerted to the shutter opener (58) as the rotational force in the eject state of FIG. At the same time, when the cartridge (1) is installed, the shutter opener (58) and the spring (57) become substantially parallel to each other, and the shutter opener (58) is configured so that the spring (57) force acts as a rotational force to the smallest. ing.

Further, one end of the opener (58) is swingably supported by the drive frame (41) via a fulcrum shaft (59), and a guide pin (60) is provided at the other end of the opener (58).
(1) The guide pin (60) of the opener (58) is brought into contact with the holder (28) in order to prevent the cartridge holder (28) from being inserted by the protruding action of the opener (58) in the taken-out state. (2
8) Opener (58) by cartridge (1) to be inserted into
The shutter opening arm (61) is formed at the end of the opener (58) provided with the guide pin (60) and the holder (28) is inserted into the holder (28). The arm (61) is brought into contact with one end of the shutter (6) in (1), and the shutter (6) is opened by swinging the opener (58).

Also, a long hole into which the guide pin (60) is slidably engaged.
(62) is opened in the cartridge holder (28), and the insertion-preventing arc portion (6) that forms a part of the circumference around 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
(64), and the holder (28) is configured to start insertion.

Further, as shown in FIG. 1, FIG. 4, FIG. 18 and FIG. 19, it is equipped with a turntable (65) on which the disc (3) is placed, and a turntable (67) which 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) is slidably supported by the reproducing section chassis (68) via the guide rails (71) (71), and the holder is
Pickup drive linear motor (7
3) (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 support leg (78) is fixed to the turntable (65), and the ring (77) is lifted between the turntable (65) and the mount (75). Provide freely.

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, and 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 inserted, the lever (88) is swung in conjunction with the insertion operation to move the notch (90) 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). The stop switch (95) is turned off by the operation piece (96) at the end of insertion of the cartridge. Like the switch (56) in FIG. 17, the motor (42) is stopped to end the cartridge (1) mounting operation. It is configured to do. The stop switch (95) can be omitted and the motor (42) can be stopped only by the switch (56) shown in FIG.

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 ridge (10
The engaging piece (102) is moved away from 1) so that the pickup (69) can be operated.

As described above, the front-back movement prevention lever (88) that is a chassis lock arm that fixes the movable chassis (11) for supporting the turntable (65) and the pickup lock lever that is a pickup lock arm that fixes the pickup (69). (97)
And a blocking lever (88) for connecting the pickup lock lever (97) to the forward / backward movement blocking lever (88) and also for connecting to the slider (21) for loading / unloading the cartridge (1).
The fulcrum shaft (87) of the lever (88) is provided close to the cam groove (93) which is a long hole of the fulcrum shaft. 87) forming the blocking lever
Since the fulcrum shaft (87) is arranged approximately in the middle of the longitudinal direction of (88),
Even if the rotation space of the blocking lever (88) around the fulcrum shaft (87) is narrowed, it depends on the operation amount to engage and disengage the notch (90) with the fixed shaft (89) and the pin (99). The operation amount of the lock lever (97) can be easily obtained, and the blocking lever has a compact structure.
It is configured so that (88) can be attached.

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, and the cartridge (1) is inserted into the holder (28) .The door (103) is provided on the cartridge (1) inlet / outlet side of the cartridge holder (28) and the cartridge (1) is provided. The door (103) that opens by inserting (1) is brought into contact with the cartridge holder (28), and the insertion end of the cartridge (1) is guided by the door (103) into the inside of the cartridge holder (28) opening. It is configured to prevent the insertion end from coming into contact with and damaging the cartridge holder (28) and the like.

Further, the cushion rubber (12) provided between the fixed chassis (10) and the movable chassis (11) has a built-in vibration damping spring (105) in the hollow part, and guide grooves (19) of the guide bodies (17) and (18). Even if the upper surface of the cartridge holder (28) is brought close to the upper surface of the outer case (16) while the movable chassis (11) is fixed, the movable chassis (11) does not move due to the descending step of the inclined portion (33) formed on the (20). In the idle state,
A large gap can be formed between the outer case (16) and the upper surface of the holder (28), so that the vertical swing amount of the movable chassis (11) supported by the anti-vibration spring (105) can be set large, and the outer case ( 16) is configured so that it 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 insertion position of (1), use the spring (110) to
When the cartridge (1) is inserted in a normal position with the front side facing up, the stopper (109) is moved out of the insertion path by the front and back reverse prevention arc part (8) of the cartridge (1). When retracting and inserting the cartridge (1) further, while inserting the cartridge (1) with the back side facing up,
A stopper (109) engages with the front end of the cartridge (1) to prevent the cartridge (1) from being inserted.

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 holder (28)
When the cartridge (1) is pressed downward by the presser spring (84) in the inside and the cartridge (1) is in the normal posture,
As shown in FIG. 21, the stopper (109) is retracted out of the insertion path by the arc portion (8) on the front surface of the cartridge (1), and the cartridge (1) is further inserted.

Further, as shown in FIG. 22, the opening arm (61) of the shutter opener (58) is released by inserting the cartridge (1).
(6) is engaged and the shutter (6) is opened to open the opener (58).
Rock. 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
0) and the drawing boss (36) engages with the drawing hole (7) of the cartridge (1).

Insert the cartridge (1) and the guide pin
(60) moves in the straight part (64) of the long hole (62),
The cartridge holder (28) and the slider (36) come into contact with the guide body (17) to prevent the guide body (17) from being disengaged from the lead-in hole (7), and so that the rack gear (50) meshes with the pinion gear (48).
(21) is inserted integrally with the cartridge (1).

Then, in the state shown in FIGS. 9 and 23, the switch (55) is turned on by the rib (50a) of the rack gear (50), and the motor (4
Rotate 2) to drive the rack gear (50) in the inserting 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 inserting operation of the cartridge holder (28) is continuously performed, and the guide shafts (29) and (30) are guided into the guide groove as shown in FIG.
(19) By reaching the straight descending part (35) of the (20), as shown in FIG. 24, the guide pin (60) of the opener (58) forms the straight part of the long hole (62) formed in the holder (28). (64) It moves to the end side,
The opener (58) and the spring (57) are extended and supported substantially parallel to the moving direction of the shutter (6), and although the pulling force of the spring (57) is maximized, the spring (5) that acts on the opener (58) is
7) is the smallest.

In addition, since only the slider (21) slides further in the state of FIG. 10, the guide of the descending grooves (31) (31) of the slider (21) causes the id shaft (as shown in FIGS. 11 and 12) to move. 29) (30) descends the straight descending part (35) of the guide shaft (19) (20),
It lowers (1), and as shown in Fig. 18, the disc (3)
On the turntable (65), the chuck plate (4) is attracted to the turntable (65) by the magnet (74), and the disc (3) is attached by the turntable (65) and the chuck plate (4).
Hold in.

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, support the lock shafts (22) and (23) by the short horizontal parts (34) and (34) of the guide grooves (19) and (20), and lower the support height of the slider (21). 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.

Then, when the cartridge (1) is loaded as shown in FIG. 25, the stop switch (56) is operated by the switch gear (47b) shown in FIG. 17 to stop the motor (42) to stop the cartridge (1). Complete the mounting operation.

Further, when 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. 26, and the lock lever (97) engages. Chip (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 returned by the spring (57), the disc holder (28) is moved to the eject position, and the cartridge (1) is moved from the inlet (15a) of the front plate (15). ) Is discharged to return to the state of FIG.

Also, raise and lower the cartridge holder (28) to
Guide groove (19) for moving (3) up and down on the turntable (65)
Set the length of the straight descending part (35) (35) of (20) to the guide groove (19) (2
0) Since the step of the inclined portion (33) can be shortened, the inclination angle of the descending groove (31) of the slider (21) can be reduced by the same sliding amount of the slider (21), and the slider (21) can be reduced. It was possible to reduce the sliding load.

By the way, when the cartridge (1) is inserted, as shown in FIGS. 2 and 6 to 8, the lock shafts (22) and (23) have the vertical movement restricting portions (27) of the vertical movement restricting grooves (24) and (25). That is, the movable chassis (11) is fitted in the narrow hole portion and regulates the vertical movement of the movable chassis (11). Then, the cartridge (1) is inserted into the holder (28), and the tip of the cartridge (1) is the stopper (40) of the holder (28).
When the holder (28) and the slider (21) are integrally inserted by further insertion of the cartridge (1), the drawing boss (36) is engaged with the drawing hole (7) of the cartridge (1). Along with this, the lock shafts (22) and (23) are
(24) Moves in (25), but moves in the narrow slot having a narrow width, so that the vertical movement of the movable chassis (11) is still restricted.

Then, as shown in FIG. 9, the guide shafts (29) and (30) are connected to the guide groove (1
9) The holder (28) and the slider (21) are integrally inserted up to the position reaching the inclined portion (33) of (20), and the rack gear (50) meshes with the pinion gear (48) as shown in FIG. 23. When the switch (55) is turned on by 50a) and the automatic retracting operation of the holder (28) and the slider (21) is started, as shown in FIG. 9, the lock shafts (22) and (23) have vertical movement restricting grooves ( 24) From the narrow slot of (25) to the wide slot. This allows the movable chassis (1
1) can move up and down within the range of the up and down width of the wide oblong hole of the up and down movement regulating grooves 24, 25.

In addition, the guide shafts (29) (30) are directly descending parts of the guide grooves (19) (20).
(35) When the holder (28) and the slider (21) are integrally inserted by automatic retraction to the position reaching the upper end,
Lower the turntable (28) and cartridge (1).
When only the slider (21) slides by automatic retraction so that the disc (3) is held by the (65) and the chuck plate (4), the lock shafts (22) and (23) move up and down together with the vertical movement regulating groove. (twenty four)
Although it moves inside the (25), it moves within the wide oblong hole, so the movable chassis (11) moves up and down within the vertical width of the wide oblong hole of the vertical movement restricting grooves (24) (25). Can move.

Further, when the disk (3) is driven and the information is read by the pickup (69), as is apparent from FIG. 13, the lock shafts (22) and (23) have the vertical movement restricting grooves (24) (25). )
The movable chassis (11) can move up and down within the range of the vertical width of the wide elongated holes of the vertical movement restricting grooves (24) and (25) since the fitting is stopped in the wide elongated hole.

On the other hand, when ejecting the cartridge (1),
(22) (23) moves in the opposite direction to the wide oblong holes of the vertical movement restricting grooves (24) (25), and moves from the pinion gear (48) to the rack gear (50).
When the holder (28) and slider (21) complete the automatic withdrawal operation, they reach the narrow slots of the vertical movement regulating grooves (24) and (25), and then the spring (57) of the opener (58). ) As the holder (28) and slider (21) retreat to the eject position, the lock shafts (22) and (23) move the vertical movement restriction grooves (24) and (25) into narrow slots. The parts are moved to return to the positions shown in FIGS. 2 and 6 to 8, so that the vertical movement of the movable chassis (11) is restricted again in the ejected state.

"Effects of the Invention" As is apparent from the above embodiments, the present invention is a fixed chassis.
The movable chassis (11) that is attached to the (10) via the cushion rubber (12), and the slider that allows the cartridge (1) to come in and out.
In a cartridge loading device for attaching (21) to the movable chassis (11), a pair of front and rear lock shafts (22) and (23) are provided on the left and right side surfaces of the slider (21) so as to project,
Standing walls (26) cut and raised from the fixed chassis (10) are arranged on the left and right outside of the slider (21), and the standing wall (26) has a vertical movement restriction having a wide long hole portion and a narrow long hole portion. The groove (24) is provided, and the lock shafts (22) and (23) are moved within the vertical movement restricting groove (24), and the slider (21) is formed by the narrow slot of the vertical motion restricting groove (24) during ejection. Also, the vertical movement of the movable chassis (11) is prevented, and the vertical movement of the slider (21) and the movable chassis (11) is allowed within a predetermined range by the wide slot of the vertical movement regulation groove (24) during loading. With a simple structure that changes the groove width of the vertical movement regulation groove (24), the slider (21) and the movable chassis (11) that configure the mechanical part are fixed to the fixed chassis (10) at the time of ejection. While it can be supported, the slider (21) and the movable chassis (11) are fixed chassis (1
The slider (21) and movable chassis (11) can be vibrated within a range that does not damage the (0) or outer case (16),
Compared with the conventional one, it has a practical effect of properly protecting the mechanical portion from vibration and shock.

[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 views, FIGS. 14 to 17 are explanatory views of the loading / unloading mechanism, FIG. 18 is an explanatory view of a turntable, FIG. 19 is a sectional front view, and FIGS.
FIG. 6 is an explanatory view of a cartridge mounting operation. (1) ... Cartridge (10) ... Fixed chassis (11) ... Movable chassis (12) ... Cushion rubber (21) ... Slider (22) (23) ... Lock shaft (24) ... Vertical movement restricting groove (26) ... Standing wall

Claims (1)

[Scope of utility model registration request] 1. A cartridge comprising a fixed chassis (10) and a movable chassis (11) mounted via a cushion rubber (12).
Attach the slider (21) that moves the (1) in and out to the movable chassis (11).
In the cartridge loading device to be attached to
A pair of front and rear lock shafts (22) are provided on the left and right side surfaces of the slider (21).
(23) is projected, and standing walls (26) cut and raised from the fixed chassis (10) are arranged on the left and right outer sides of the slider (21), and the standing walls (26) are provided with wide oblong holes. A vertical movement regulating groove (24) having a narrow elongated hole is provided, and the lock shaft is provided in the vertical movement regulating groove (24).
(22) Move (23) and vertical movement control groove (24) when ejecting
Slot (21) and movable chassis (11)
Vertical movement control groove (24)
(21) and movable chassis (11) in the long slot of the
A cartridge loading device, which is configured to allow vertical movement of the cartridge within a predetermined range.