JPH067493Y2 - Cartridge loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention has 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 present invention relates to a cartridge loading device in a player.

“Conventional Technology” Conventionally, there is a technology in which a cartridge supported by a cartridge holder is moved to a drive position or an eject position by a slider.

[Problems to be Solved by the Invention] In the above-mentioned conventional technique, since the slider is arranged between the cartridge holder and the guide body on the outer side of the cartridge holder, the gap between the slider and There was a problem that it became very difficult to regulate lateral movement.

However, according to the present invention, the left and right guide bodies are erected and fixed on the upper surfaces of both sides of the chassis, and the slider having a gate-shaped cross section is arranged between the left and right guide bodies. A cartridge holder that supports the cartridge is provided, and guide shafts that project outward from both side walls of the cartridge holder are inserted into the guide grooves formed in the left and right guide bodies through the descending grooves formed in the slider, and outside from both side walls of the slider. Insert the shaft to be projected into the guide groove of the left and right guide bodies, and the cartridge holder slides back and forth together with the slider within the guide groove of the left and right guide bodies to the straight descending part formed at the front end of the guide groove of the left and right guide bodies. When the guide shaft is positioned, the cartridge holder moves up and down within the range of the straight descending section by sliding the slider only forward and backward. In addition, the tip of the guide shaft of the cartridge holder is extended to the outside of the guide body, and the bulging member that slides on the outer surface of the guide body is fixedly attached to the tip of the guide shaft on one side of the cartridge holder to The mounting distance between the cartridge holder and the slider is approximately equal to the thickness of the slider, while the mounting distance between the guide on the other side and the cartridge holder is larger than the thickness of the slider to regulate the lateral movement of the slider. It is configured as follows.

[Operation] Therefore, since the slider itself secures a gap necessary for sliding the slider between the cartridge holder and the outer guide body, lateral movement of the slider itself is restricted, so that sliding of the slider is prevented. The required gap can be properly obtained with a simple structure that does not take time for assembly, and the slider can be slid very smoothly to load the cartridge smoothly.

[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 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 to the restricting groove.
(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 end of each of the front and rear guide shafts (29) and (30) is fixed to both sides of the holder (28), 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. Penetrate 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 at the end of the insertion. By manually inserting the cartridge (1) into the holder (28) in the state shown in FIG. 8, the guide shafts (29) and (30) are moved to the short horizontal part ( 34) The slider (21) and the holder (28) slide together properly from the end to the state shown in FIG. 10, 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 side fixed to 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 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 prevented and the engagement with the cartridge (1) is maintained.

Further, as shown in FIGS. 1, 6, and 14 to 16, the drive frame (41) is fixed to the movable chassis (11), and the slider (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 which is meshed with the pinion gear (48) is fixedly mounted on the slider (21) to move the cartridge holder (28) to a setting position or a mounting position. ) 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.

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 acts in the ejecting direction of 1), and when the rotation of the motor (42) is transmitted to the rack gear (50) and the slider (21) is ejected, the return spring after the motor (42) has stopped. (54) force rotates the drive gear (47),
The rack gear (50) is configured to be reliably separated from the drive gear (47).

Further, the frame (41) is provided with an entry switch (55), the rack gear (50) is integrally formed with an operation rib (50a), and the pinion gear (4) is moved by the entry operation of the slider (21).
After the rack gear (50) meshes with the gear (48) by idling of (8), the switch (55) is turned on by the rib (50a) and the motor (42) is operated to drive the pinion gear (48). Then, the slider (21) is configured to be automatically retracted.

Further, as also 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, and the switchgear ( 47b) is supported by a fixed shaft (46) as an idle shaft, and the switchgear (47b) is moved when the slider (21) is completely inserted.
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),
A projecting spring (57) stretched substantially parallel to the shutter opener (58) when the cartridge (1) is installed is connected to the shutter opener (58). The ejector shown in FIG. Spring as turning force (57)
The maximum force is applied, and when the cartridge (1) is installed, the shutter opener (58) and spring (57)
Are substantially parallel to each other, and the force of the spring (57) is exerted on the shutter opener (58) as a rotational force to be the smallest.

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 entering due to the protruding action of the opener (58) in the taken-out state. (2
8) Opener (58) by cartridge (1) to be inserted into
To move the holder (28) into the insertion position, and the shutter opening arm (61) is formed at the end of the opener (58) provided with the guide pin (60) and is inserted into the holder (28). The arm (61) is brought into contact with one end of the shutter (6), 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 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, 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
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, 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 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). The stop switch (95) is turned off by the operation piece (96) at the end of entry of the cartridge. Like the switch (56) in FIG. 17, the motor (42) is stopped and the cartridge (1) mounting operation is completed. 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 separated from the (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 opening of the cartridge holder (28), and the cartridge (1) is opened. ) 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 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 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 opened by the arc portion (8) on the front surface of the cartridge (1), and the cartridge (1) is further moved.
To enter.

Further, as shown in FIG. 22, the opening arm (61) of the shutter opener (58) is opened 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) engages with the lead-in hole (7) of the cartridge (1) while abutting on the (0).

Insert the cartridge (1) and 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 (50a) of the rack gear (50), and the motor (4
Rotate 2) 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.
(19) By reaching the straight descending part (35) of (20), the lock shaft (2
2) (23) escapes from the vertical movement restricting part (27) of the restricting grooves (24) (25), and the guide pin of the opener (58) as shown in FIG.
(60) moves to the end of the straight part (64) of the elongated hole (62) formed in the holder (28), and the opener (58) and spring (57) are arranged substantially parallel to the moving direction of the shutter (6). Although extended and supported, the tensile force of the spring (57) is maximized, but the spring (57) acting on the opener (58) is the smallest.

Further, since only the slider (21) slides further 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, 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, 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.

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.

"Effect of the invention" As is apparent from the above embodiment, the present invention is the chassis (11).
The left and right guide bodies (17) and (18) are erected and fixed on the upper surfaces of both sides of the slider, and a slider (21) having a gate cross section is arranged between the left and right guide bodies (17) and (18). A cartridge holder (28) for supporting the cartridge (1) is provided in the guide shaft (29) (30) for projecting outward from both side walls of the cartridge holder (28).
Through the descending groove (31) formed in the slider (21) into the guide grooves (19) (20) formed in the left and right guide bodies (17) (18), and project outward from both side walls of the slider (21). Axis
Insert (22) and (23) into the guide grooves (19) and (20) of the left and right guide bodies (17) and (18), and into the guide grooves (19) and (20) of the left and right guide bodies (17) and (18). , The cartridge holder (28) slides back and forth together with the slider (21) within the range of the guide grooves (19) (20) of the left and right guide bodies (17) (18) to guide the left and right guide bodies (17) (18). Grooves (19) (20)
When the guide shafts (29) and (30) are located on the straight descending portion (35) formed at the front end of the
In the cartridge loading device in which the cartridge holder (28) moves up and down within the range of 5),
A bulge member (29a) that extends the tip of the guide shaft (29) (30) of (28) to the outside of the guide body (17) (18) and slides on the outer surface of the guide body (17) (18). (30a) is fixed to the tip of the guide shaft (29) (30) on one side of the cartridge holder (28), and the guide body on one side is fixed.
The mounting distance between the (17) and the cartridge holder (28) is formed to be approximately the same as the plate thickness of the slider (21), while the mounting distance between the guide body (18) on the other side and the cartridge holder (28) is set to the slider (21). 21), and make the slider (21)
It is configured to restrict the lateral movement of the
The slider (21) itself should secure the gap required for sliding of (21) between the cartridge holder (28) and this outer guide body (17) (18). Since the movement of the slider (21) is restricted, the gap required for sliding the slider (21) can be accurately obtained with a simple structure that does not take time for assembling, and the slider (21) can be slid very smoothly and the cartridge It has a practical effect that the loading of (1) can be smoothly performed.

[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 (17) (18) ... Guide body (21) ... Slider (29) (30) ... Guide shaft (29a) (30a) ... Disc body (bulging member) (31) ... Down groove ( (Descent guide) (33)… Inclined part (Descent guide)

Claims (1)

[Scope of utility model registration request] 1. Left and right guide members (1
7) (18) is fixed upright, a slider (21) having a gate-shaped cross section is arranged between the left and right guide bodies (17) (18), and the cartridge (1) is supported inside the slider (21). The left and right guide bodies (17) are arranged through the descending groove (31) formed in the slider (21) by disposing the cartridge holder (28), and guiding shafts (29) (30) projecting outward from both side walls of the cartridge holder (28). ) (18) are inserted into the guide grooves (19) (20) and the shafts (22) and (23) that project outward from both side walls of the slider (21) are attached to the left and right guide bodies (17).
Insert it into the guide groove (19) (20) of (18), and set the left and right guide bodies (17).
The cartridge holder (28) slides back and forth together with the slider (21) within the range of the guide grooves (19) and (20) of (18), and the left and right guide bodies (1
7) Straight descending part (3) formed at the front end of the guide groove (19) (20) of (18)
When the guide shaft (29) (30) is positioned on (5), the cartridge holder (28) moves up and down within the range of the straight descending part (35) by sliding the slider (21) forward and backward. A bulge member (29a) that extends the tip of the guide shaft (29) (30) of the holder (28) to the outside of the guide body (17) (18) and slides it on the outer surface of the guide body (17) (18). ) (30a) is fixed to the tip of the guide shaft (29) (30) on one side of the cartridge holder (28), and the guide body (17) on the one side and the cartridge holder (2
8) The mounting distance between the guide body (18) and the cartridge holder (28) on the other side is set to be approximately equal to the thickness of the slider (21). A cartridge loading device, which is large in size and is configured to restrict lateral movement of the slider (21).