JP2554367B2 - Disc player reverse insertion prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] According to the present invention, a magazine accommodating a plurality of discs is set in a player body, and one disc is taken out from the magazine together with a disc device plate for reproduction. In the disc player, when the magazine is inserted into the magazine holder, the magazine reverse insertion preventing device is configured to prevent the magazine from being inserted upside down.

[Conventional technology]

The on-vehicle multi-disc player will be described with reference to FIG.

This multi-disc player is the trunk of car A
A player body B is mounted on A ₁ , and a magazine C is set on the player body B.

In this magazine C, a plurality of disc mounting plates C ₁ have axes C ₂
Is rotatably supported by the case C ₃ , and one disk D is mounted in the recess C ₂ ′ of each disk mounting plate C ₂ . Also, the case in this magazine C
The C _3, said to have a window C ₅ on one side near the axis C ₂ is formed with, a player in a state that sets the magazine C to the player body B, and plate C ₁ mounting disk from the window C ₅ By pushing with a lever protruding from the body B side, the disc mounting plate C ₁ is rotated and pushed out of the case C ₃ . Further, an engaging recess C ₄ for holding the set state in the player main body B is formed on the side surface of the case C ₃ .

The player main body B is connected to the remote control device F installed on the dashboard A ₂ of the automobile A by the cable E.

In the disc player configured as described above, by inserting and setting the magazine C into the player main body B and operating the remote control device F, the desired disc placing plate C ₁ is rotated and pulled out, and the disc placing plate C ₁ is pulled out. The disc D on the plate C ₁ is held and reproduced by the clamper.

[Problems to be Solved by the Invention]

By the way, in the above-mentioned disc player, the disc mounting plate C ₁ is taken out by inserting the magazine C into the magazine holder, or when the magazine C is inserted into the magazine holder, There is no mistake in inserting the magazine C in the front-rear direction, but it is a mistake that it often happens that the magazine C is inserted with the upper and lower surfaces reversed.

When the upper and lower surfaces of the magazine C are inserted with the upper and lower sides reversed, not only can the disk mounting plate not be taken out, but also an unreasonable force may be applied to the mechanical part to damage it, and the magazine C can be taken out. There was a problem of disappearing.

[Object of the Invention]

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is that even when an attempt is made to insert the magazine into the magazine holder upside down, the pushing arm and the front concave portion of the magazine are locked. SUMMARY OF THE INVENTION It is an object of the present invention to provide a device for preventing reverse insertion of a magazine of a disc player in which insertion of the disc is blocked.

[Outline of Invention]

In order to achieve the above-mentioned object, the present invention attaches a pushing arm which is rotated against the spring force of a spring when the magazine is inserted into the magazine holder and which ejects the magazine by the spring force of the spring during an eject operation, The gist of the present invention is that when the magazine is inserted upside down at the time of inserting the magazine, the partial pushing arm comes into contact with the front step portion of the magazine to be in a locked state so that the magazine cannot be inserted.

Example of Invention

An embodiment of the player body B will be described below with reference to the drawings.

In FIGS. 2 to 4, 1 and 2 are left and right side plates constituting a frame, and 3 is a magazine holder in which slide plates 4 and 5 described later are interposed between the left and right side plates 1 and 2. Guide pins 3a to 3c are formed on the left and right side surfaces.
Further, a fan-shaped gear portion 6a is provided on the lower surface of the magazine holder 3.
A magazine pushing arm 6 having a shaft is pivotally supported at one end and is spring-biased in the magazine pushing direction by a spring 6b.

Further, a standing piece 6c is integrally formed at one end of the gear portion 6a of the pushing arm 6, and when the magazine C is inserted from the opening of the magazine holder 3, the standing piece 6c comes into contact with the front surface of the magazine C so that the magazine 6a is in contact with the magazine C. In response to the pushing of C, the spring is rotated against the spring force of the spring 6b, and the magazine C is inserted and set.

Since the upright piece 6c faces the flat surface of the magazine C when the magazine C is inserted in the normal direction, the upright piece 6c slides on the flat surface according to the pushing of the magazine C and moves. The pushing arm 6 is rotated (see FIG. 5), but when the magazine C is inserted upside down,
Since the standing piece 6c to the front step portion C ₆ of the magazine C is in contact with the locked state, the extrusion arm 6 prevents the insertion of the magazine C can not rotate (Figure 6). Therefore, magazine C
Since it can no longer be inserted upside down, it is possible to prevent malfunction due to erroneous insertion.

Further, the gear 6a of the pushing arm 6 is a gear of the rotary damper 7 attached to the lower surface of the magazine holder 3.
Since it is formed so as to mesh with 7a and the return speed of the pushing arm 6 is gentle, the discharge of the magazine C from the magazine holder 3 is performed gently.

When the magazine C is inserted and set in the magazine holder 3, the engaging claw is rotatably attached to the side surface of the magazine holder 3 and is spring-biased in a direction that always projects inward from the side surface. The arm 8 is formed so as to lock the magazine C by engaging with the locking groove C ₄ formed on the side surface of the magazine C.

In the slide plates 4 and 5 interposed between the frame 1 and the magazine holder 3, the guide pins 3a to 3c projecting from the side surfaces of the magazine holder 3 are inserted, and the stepped cam holes 5a (slide plate) are formed. 4 has two cam holes into which the guide pins 3a and 3b are inserted (not shown), and the slide plates 4 and 5 are arranged horizontally with respect to the left and right side plates 1 and 2. It is instructed to slide freely. Further, the guide pins 3a to 3c of the magazine holder 3 penetrate the respective cam holes of the slide plates 4 and 5, and the vertical holes 2a formed in the left and right side plates 1 and 2 (the guide pins 3a and 3b are provided on the slide plate 4). There are two vertical holes to be inserted, but they are not shown).

In addition, the rotating plates 9 and 10 pivotally supported outside the left and right side plates 1 and 2.
The tip of the guide pin 3b, 3c is axially supported, and the spring force of the spring 9a, 10a stretched at the other end constantly urges the guide pin 3b, 3c to spring upward, whereby the magazine holder Pushing 3 upwards.

Numeral 11 is a synchronizing plate whose center is axially supported on the upper surface of the magazine holder 3 and whose both ends are engaged with the engaging projections 4a and 5b of the sliding plates 4 and 5, and when either one of the sliding plates is moved. The other slide plate is moved in the opposite direction at the same speed.

A slide plate drive device 12 for moving the slide plate 5 is composed of a motor 12a and a reduction gear group 12b,
The final gear meshes with the gear 5c formed on the upper surface of the slide plate 5.

When the motor 12a of the slide plate drive device 12 is driven, the slide plate 5 moves horizontally via the reduction gear group 12b, so that the guide pin 3c guided by the cam hole 5a of the slide plate 5 is Since it is also guided by the vertical hole 2a of the right side plate 2, it moves vertically. Further, when the slide plate 5 starts to move, the slide plate 4 also moves in the horizontal direction through the synchronizing plate 11 though it is in the opposite direction to the slide plate 5, so that the guides guided by the cam holes of the slide plate 4 are guided. The pins 3a and 3b move up and down as described above.
Therefore, the magazine holder 3 moves up and down by the vertical movement of the guide pins 3a to 3c.

In addition, in the above-mentioned engaging claw arm 8, the slide plate 4 is the second
At the end of the movement to the left in the figure (the magazine holder 3 has moved to the uppermost position in this state),
Protrusion 4b formed on the slide plate 4 is detached from the engaging groove C ₄ of the magazine C is rotated by pushing the protrusion 8a counterclockwise direction. Therefore, the magazine C is in a free state, and is gently discharged by the spring force of the spring 6b of the pushing arm 6.

The above description is about the setting and ejection of the magazine C to and from the magazine holder 3, and the vertical movement of the magazine holder 3. Next, the disc D is pulled out from the magazine C set in the magazine holder 3 and reproduced. The part will be described.

In FIG. 2, reference numeral 13 denotes a pickup driving device, which is composed of a pickup driving motor 13a, a screw rod 13b rotated by the motor 13a, and a pickup 13c moving with the rotation of the screw rod 13b. Further, 14 is a turntable drive motor for driving the turntable 15.

In FIG. 4, reference numeral 16 denotes a control cam drive motor which is fixed to the first chassis 19a and drives a control cam 18 which will be described later. The worm wheel 17 is rotated via the worm 16a fixed to the output shaft of the motor 16. It A small gear 17a integrally formed with the worm wheel 17 is meshed with an internal gear 18a formed in a part of the control cam 18.

The control cam 18 connects the left and right side plates 1 and 2 and is axially supported by a shaft planted in a second chassis 19b that fixes the first chassis 19a via a spacer (not shown). A fan-shaped internal gear 1 that meshes with the small gear 17a
8a is formed, a higher cam portion 18b is formed at a position substantially opposite to the internal gear 18a, and a control projection 18c is integrally formed near the end of the internal gear 18a.

Numerals 20 and 21 are first and second rotary plates rotatably supported on the upper surface of the second chassis 19b, and are rollers protruding from the first rotary plate 20 located on the second chassis 19b side. 20a is in contact with the cam portion 18b of the control cam 18. And the first,
Springs 22 and 23 are stretched between the second rotating plates 20 and 21 and the second chassis 19b, respectively, and both the rotating plates 20 and 21 are biased toward the second chassis 19b. Therefore, the first rotating plate 20
The roller 20a is pressed against the cam portion 18b. The first rotating plate is penetrated through the second chassis 19b so that the first chassis 19a
One end of the connecting arm 24 that reaches the upper surface of is pivotally supported.

The third rotation plate is rotatably supported on the upper surface of the first chassis 19a, and the pin 25a protruding to the side is inserted into the long hole 24a formed at the other end of the connecting arm 24. At the same time, a spring 26 is stretched between them. Then, on both sides of the tip of the third rotating plate 25, there is a T made of synthetic resin.
The upper ends of the vertical plate portions 27a of the V-shaped disc pressing member 27 are pivotally supported. The tip end of a parallel arm 28, one end of which is pivotally supported by the first chassis 19a, one end of which is pivotally supported by the third rotating plate 25, is pivotally supported approximately in the middle of the vertical plate portion 27a. Therefore, when the third rotating plate 25 is rotated, the disc pressing member 27 moves vertically in parallel. Although not shown, a cushioning material such as felt is attached to the lower surface of the horizontal plate portion 27b of the disk pressing member 27. Further, the vertical plate portion 27a of the disc pressing member 27 contacts the stopper piece 19a 'cut and raised from the first chassis 19a, and the disc pressing member 27
The amount of descent is regulated.

29 is a clamper rotatably supported on the tip of the second rotating plate 21 described above, and 30 is a planter mounted on a third chassis 19c mounted between the left and right side plates 1 and 2 like the second chassis 19b. Three support columns 30a are formed at intervals of about 120 degrees as a clamper support member inserted into the two guide pins 19d formed. The clamper support member 30 is connected to the guide pin 19d.
Since the spring 30b inserted into one of the two supports constantly biases the clamper 29 toward the clamper 29 side, the clamper 29 is held in a horizontal state by the three support columns 30a (7th embodiment).
See figure).

Then, the control cam 18 is rotated by the motor 16 and the first
The roller 20a in the rotating plate 20 of the control cam 18b of the control gum 18 is
When it is further released, the first rotating plate 20 is rotated by the spring force of the spring 22, so that the clamper 29 causes the turntable 15 to rotate.
Move to the side and clamp disk D. This clamper
When moving 29, clamper support member 30
Since the spring is biased toward the clamper 29 side by 30b,
Along with the movement of the clamper 29, the clamper support member 30 also moves in a state of being in contact with the clamper 29, and holds the clamper 29 in a horizontal state until just before the disk D is clamped with the turntable 15. Therefore, the clamper 29 is accurately inserted into the hole of the disk D, so that the clamper 29 can be clamped without eccentricity with the turntable 15.

When the first rotating plate 20 is rotated, the second rotating plate 20 is rotated.
Since 21 is also rotated by the spring force of the spring 23, the third rotating plate 25 is rotated via the connecting plate 24. With this rotation, the disk pressing member 27 moves in parallel by the parallel arm 28 and ascends. Therefore, the disk pressing member 27 comes into contact with the upper surface of the disk D that is pushed up by the clamper 29 and moves, so
The upper surface of the clamper 29 and the horizontal plate portion 27 of the disk pressing member 27.
It is moved to the turntable 15 side which is held in parallel with b. Therefore, the disk D can be clamped between the turn turn 15 and the clamper 29 in the horizontal state (see FIG. 5). Further, when the disk D is returned to the disk mounting plate C ₁ , the rotary plate is rotated. 20 rotates counterclockwise to lower the disc D, but when the disc D is caught on the way and cannot be lowered, the elongated hole 24a of the connecting arm 24 is rotated so as to forcibly push the disc D up by the disc pressing plate 27. When the moving plate 20 is in the lowered position, it comes into contact with the pin 25a.

Reference numeral 31 denotes an upper slide plate which is attached to the second chassis 19b so as to be movable in parallel, 32 is a lower slide plate which is attached to be able to move parallel to the upper slide plate 31, and a spring 33 is provided between the two. It is stretched so that when the lower slide plate 32 moves, the upper slide plate 31 also moves. Then, the control cam 18 is provided in the long hole 32a of the lower slide plate 32.
When the control projection 18c of is engaged and the control cam 18 rotates, the lower slide plate 32 moves, and along with this, the upper slide plate 31
Also moves in the same direction by the spring force of the spring 33.

Further, the position detection switches S _{1 to} S ₃ that are turned on / off by the movement of the upper slide plate 31 on the second chassis 19b.
Is mounted, and the upper slide plate 31 is in the standby position (the position shown in FIGS. 2 and 4) where the disc mounting plate C ₁ is not pushed out from the position magazine C shown in FIGS. 2 and 4. , All position detection switches S _{1 to} S ₃ are turned on,
When the disc mounting plate C ₁ is pushed out from the magazine C by the pushing arm 34 described later and the disc D on the disc mounting plate C ₁ reaches the position of the turntable 15 at the reproduction standby position, the position detection switch S ₁ and S ₂ are turned off,
The position detection switches S _{1 to} S ₃ are arranged so that all the position detection switches S _{1 to} S ₃ are turned off when the disk D is at a position clamped by the turntable 15 and the clamper 29. .

34 is a substantially C-shaped pushing arm rotatably supported by the second chassis 19b, one end 34a of which is engaged with the upper slide plate 31, and when the upper slide plate 31 moves, the pushing arm 34 rotates. The other end 34b is inserted into the hole C _{5 of the} magazine C inserted and set in the magazine holder 3, pushes the disc mounting plate C ₁ , rotates the disc mounting plate C _1, and pushes it out of the case C ₃ . At this time, the disc mounting plate C ₁ is excessively rotated so that the center position of the disc mounting plate C ₁ is located forward of the center position of the turntable 15 in the pushing direction, that is, the turntable 15 is clamped by the clamper 29. When D descends due to the retreat of the clamper 29, the disc D is placed in front of the disc placing plate C _{1 in} the returning direction (see the solid line in FIG. 12).

When the upper slide plate 31 is moved in the opposite direction, plate C ₁ mounting are extruded disc is pushed back by the side of the side being engaged with the upper slide plate 31, the disk mounting plate C ₁ Case C Stored in ₃ . This disc mounting plate C ₁
When the disk is housed in the case C ₃ , the disk D that rides on the edge of the disk mounting plate C ₁ comes into contact with the opening of the case C ₃ and is returned to the recess C ₁ ′ of the disk mounting plate C ₁ . The disk mounting plate C ₁ is securely stored (see the chain double-dashed line in FIG. 12).

The upper and lower slide plates 31 and 32 are divided into two parts by allowing only the lower slide plate 32 to move even after the pushing of the disc mounting plate C ₁ by the upper slide plate 31 is completed. The control cam 18 is allowed to rotate excessively, whereby the first rotating plate 20 is rotated excessively so that the horizontal plate portion 27b of the disc pressing member 27 is rotated by the turntable 15.
This is for completely separating from the disk D clamped by the clamper 29.

Reference numeral 35 denotes a synthetic resin disc return guide fixed to the second chassis 19b at the position of the most distal end of the disc D placed on the pushed disc placing plate C ₁ , and the disc placing plate C is provided on the upper surface. A tapered portion 35a having a shape receding from the tip end portion of the disk D accurately placed on ₁ is formed, and the lower side of the tapered portion 35a is accurately placed on the disk placing plate C ₁ . A vertical portion 35b having a shape corresponding to the tip of the disk D is formed (see FIGS. 8 and 9).

Therefore, when reproduction of the disc D in the reproduction state which has been pushed up by the clamper 29 is finished and returned to the disc mounting plate C ₁ , as shown in FIG. Of the disk mounting plate C ₁ by the taper portion 35a of the
It is held in its normal position by 35b.

Reference numeral 36 denotes the second chassis 19b at two points, that is, the tip of the disc mounting plate C _{1 in} the pushed out direction and the tip of the disc mounting plate C ₁ with an interval of approximately 90 degrees from this tip.
A pair of disc return arms rotatably supported on each of which a spring 37 is stretched between the pair of disc return arms and the second chassis 19b and biases the springs counterclockwise in FIG. Each of the disc return arms 36 has two protrusions 36.
a, 36b are formed, the projections 36a of the side close to the rotation fulcrum in a state where plate C ₁ disk loading is completely extruded, formed so as to abut against the projecting edge C ₁ 'of the plate C ₁ mounting the disc Has been done. Then, when the completely pushed-out disc mounting plate C ₁ is rotated so as to be housed in the case C ₃ , the protrusion 36a of the disc returning arm 36, which has been in contact with the disk mounting plate C ₁ until now, is rotated.
_The disk return arm 36 is rotated clockwise by the spring force of the spring 37 because it is separated from the projecting edge C ₁ ′ in ₁ . Therefore, the other protrusion of the disc return arm 36
36b is moved in the plate C ₁ side mounting disc, the disc D (ninth not placed on the disk mounting plate C ₁ in a normal state
The side surfaces of the one-dot chain line and the two-dot chain line in the figure are pushed to place them in a normal state.

The disk return arm 36 is restricted by a stopper 38 attached to the second chassis 19b so that the spring 37 does not rotate more than necessary.

Next, the overall operation will be described based on the above configuration.

First, when the magazine C is inserted into the magazine holder 3, the pushing arm 6 is rotated by the front surface of the magazine C, and the engaging claw arm 8 is engaged with the locking groove of the magazine C at the rotation end position of the pushing arm 6. Engage with C ₄ to lock magazine C.

In this state, when the remote control device F is operated to select the disk D desired to be reproduced, the motor 12 is driven to move the slide plate 5. As the slide plate 5 moves, the slide plate 4 also moves via the synchronizing plate 11,
The magazine holder 3 moves up and down by being guided by the cam holes formed in the slide plates 4 and 5, and the desired disc D
When the disk mounting plate C ₁ on which is mounted is positioned to face the pushing arm 34, it stops.

Next, since the motor 17 is rotated to rotate the control cam 18, the upper and lower slide plates 31 and 32 are moved to rotate the pushing arm 34 and push out the disc mounting plate C ₁ on which the desired disc D is mounted. , The hole of disk D is turntable 15
The upper and lower slide plates 31 and 32 stop moving in the state of being positioned above.

Further, since the motor 17 continues to rotate in this state, the control cam 18 further rotates and the rollers of the first rotating plate 20 are rotated.
Since 20a separates from the cam portion 18b, the clamper 29 moves to the turntable 15 side and clamps the disk D. When the clamper 29 is moved, the clamper 29 holds the disc D in the horizontal state by the clamper support member 30 until just before the disc D is clamped between the disc D and the turntable 15. Also,
When the first rotating plate 20 is rotated, the second rotating plate 21 is also rotated, so that the third rotating plate 25 is rotated through the connecting plate 24 and the disc pressing member 27 is moved. The disk D is moved in parallel and lifted up, abutted on the upper surface of the disk D that is pushed up and moved by the clamper 29, and holds the disk D in the parallel state between the upper surface of the clamper 29 and the disk pressing member 27 and moves to the turntable 15 side. To move. Therefore, the disk D is clamped between the turntable 15 and the clamper 29 in the horizontal state.

Then, when the disk D is clamped, the motor 13a
Rotates to move the pickup 13c, so that the reproduction is started.

In this reproducing state, that is, the disc D
When the remote control device F switches the mode from the reproducing state to the radio receiving state or the ignition key is turned off while the disk is clamped by the turntable 15 and the clamper 29, the disk D is clamped. It will be retained as it is. If the disc D is left clamped and left for a long time, when the player main body B is used for vehicle mounting, the outer periphery of the disc D hangs down due to the sun heat or the like and cannot be reproduced, or the disc D is a single CD. In this case, there arises a problem that the adapter attached to the outer periphery of the adapter falls due to the vibration of the vehicle or the like and cannot be taken out.

Accordingly, the present invention or switching modes of the remote control device F when the three switches S ₁ to S ₃ are all turned off to be turned on and off by the upper slide plate 31, when the ignition switch is turned off, said The vertical slide plates 31 and 32 are moved by reversely rotating the motor 16 and the control cam 18 in response to a command signal from the remote control device F. Then, the upper slide plate 31 is the second and third switches.
When S ₂ and S ₃ are turned on, the remote control device F stops the rotation of the motor 16. This second and third switch
When S ₂ and S ₃ are on, the clamper 29
Is in the lowered state (FIG. 7), the disc D is returned onto the disc mounting plate C ₁ , and the above-mentioned problem is solved.

Then, when the reproduction is completed, the disc D is returned to the disc mounting plate C ₁ by the operation reverse to that described above, and the disc mounting plate C ₁ is housed in the case C _{3 of the} magazine C, which is remote. The magazine holder 3 moves up and down again based on a command from the controller F, and the above-described operation is repeated.

〔The invention's effect〕

As described above, according to the present invention, even if an attempt is made to insert the magazine into the magazine holder upside down, the pushing arm and the front concave portion of the magazine are locked and the insertion of the magazine is blocked, so that the disc mounting plate is removed. Therefore, it is possible to prevent the occurrence of an accident such as damage due to an unreasonable force acting on the mechanical portion, and it is possible to prevent the magazine C from being unloaded or the magazine C cannot be taken out.

[Brief description of drawings]

FIG. 1 is an overall perspective view when mounted on a vehicle, FIG. 2 is a plan view of a player main body, FIG. 3 is a side view, FIG. 4 is a rear view, and FIG. 5 is a plan view of a magazine holder portion. FIG. 6 is a plan view of the same magazine when the magazine is erroneously inserted, FIG. 7 is a side view of the clamper portion, FIG. 8 is a side view of the same disc clamped, and FIG. 9 is a disc mounting plate pushed out. Fig. 10 is a plan view of the state, Fig. 10 is a side view of the disc return guide part in the same as above, Fig. 11 is a side view of the disc return arm part in Fig. 9, and Fig. 12 is a positional relationship between the disc mounting plate and the turntable. FIG. B ...... player body, C ...... magazine, C ₁ ...... magazine mounting plate, D ...... disk, 3 ...... magazine holder, 4,5
...... Slide plate, 6 …… Extrusion arm, 13 …… Pickup drive device, 13c …… Pickup, 15 …… Turntable, 18 …… Control cam, 20,21,25 …… First to third rotation Plate, 27 ... Disk pressing member, 29 ... Clamper, 30
…… Clamper support member, 31, 32 …… Upper and lower slide plates, 34
…… Extrusion arm, 35 …… Disc return guide, 36 …… Disc return arm, S _{1 to} S ₃ …… First to third position detection switches.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeo Maruyama 25 Nishimachi, Kawada City, Saitama Prefecture 1 25 Nishimachi, Pioneer Corporation Kawagoe Factory (72) Inventor Tokunari Ima 25, Nishimachi Yamada, Saitama Prefecture Pioneer Kawagoe Factory Co., Ltd. (56) Bibliography Sho 62-18860 (JP, U)

Claims (1)

(57) [Claims] 1. In a disc player in which a disc device plate is taken out from a magazine inserted in a magazine holder and a disc is clamped by a turntable and a clamper for reproduction, when the magazine is inserted into the magazine holder, the spring force of a spring is resisted. When the ejector arm is rotated and ejects the magazine by the spring force of the spring at the time of eject operation, when the magazine is inserted upside down when the magazine is inserted, the front stepped arm of the magazine abuts and becomes locked. A reverse magazine insertion preventing device for a disc player, characterized in that rotation of the pushing arm is blocked so that insertion of a magazine cannot be performed.