JPH073724B2 - Disk holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a disc holding device provided for holding a disc by a carrier when the disc is being carried into a player.

(B) Conventional Technology Conventionally, as a holding device for holding a disk, for example, the technology disclosed in JP-A-60-80160 (G11B 17/04) is known. In such a conventional technique, as a holding means for holding the disc, a recess is provided on the upper surface of the horizontally arranged carrier, and the disc is stored and mounted in the recess to hold the disc with respect to the carrier. . However, in the above-mentioned conventional technique, if external vibration is applied to the player at the time of carrying the disc, the disc may jump out from the recess, and therefore, it is difficult to apply the technique when the player is used as a vehicle.

On the other hand, in the CDF-600 manufactured by Sanyo Electric Co., Ltd., two rotary pins and one rotary lever are pivotally supported by the carrier, and the disc edges are held by urging them. That is, when the disc is mounted, the carrier is positioned in the vicinity of the insertion hole for inserting the disc, and when the disc is inserted through this insertion hole, the two rotating pins abut against the edge of the disc and expand against the bias. When the disc is opened, and the disc is further inserted so that the positions of the two pivot pins exceed the center of the disc, the pivot pin pivots by the biasing force, and the disc is pressed at its edge so that the player pushes the disc. The disk is carried in, and at a predetermined insertion position, the front end of the disk abuts on one end of the rotating lever, so that the disk is held at three points by the rotating pin and the rotating lever.

In such a conventional technique, since the disc is held by its edge, the disc does not shift from the carrier even if vibration is applied to the player as described above. Therefore, the disc can be applied even when the player is mounted on a vehicle. Is. However, in the case of such a device, since the rotating pin and the rotating lever must be always positioned in the player due to the configuration, the amount of protrusion of the disc from the insertion hole when the disc is carried out is small, and the disc is recorded when the disc is taken out. The surface had to be grasped, and there was a drawback that fingerprints and the like adhered to the recording surface.

(C) Problems to be Solved by the Invention The present invention is intended to realize a disk holding device with a simple structure that can hold a disk reliably during transportation and increase the amount of projection of the disk during unloading. To do.

(D) Means for Solving the Problems In view of the above points, the present invention provides a carrier body slidably mounted on a fixed chassis, and a pair of disks pivotally supported by the carrier body. The holders, the cut grooves arranged along the opposite side surfaces of the respective disc holders, the arm portions also arranged on the disc holders, and the rotation ends of the disc holders are urged toward each other. Urging means, a rotation lever rotatably supported by the fixed chassis, and a pressing pin implanted at one end of the rotation lever, and the transfer body is moved by moving the transfer body. The end portion of the rotating lever is brought into contact with the front end of the body, and the pressing pin is brought into contact with the arm portion of the disc holder by rotating the rotating lever. Against the bias of the biasing means And configured to rotate in a direction away from each other.

(E) When the working disc is pressed and inserted along the cut groove of the disc holder, the disc edge spreads the disc holder against the urging force, and the urging reaction force of the spreading action causes the disc to move to the disc holder. Be held. Then, when the carrier moves into the player, when the disc is positioned on the turntable, the rotating lever pivotally supported by the fixed chassis is rotated by the carrier, so that the disc holder resists the bias. Is expanded and separated from the edge of the disk, and the disk is released from holding.

(F) Embodiment One embodiment of the present invention will be described below with reference to the drawings.

(1) is a fixed chassis, a turntable device (2) for rotationally driving the disc (D) and a pickup device (3) for optically reading information recorded on the disc (D).
Is attached. A guide shaft (4) and a guide groove (5) are arranged on both sides of the fixed chassis (1), and a first rack (6) is provided in the vicinity of the guide shaft (4) in parallel with the guide shaft (4). Is provided.
Further, a rotary lever (8) having a pressing pin (7) at one end is rotatably arranged in the inner part of the fixed chassis (1), and is locked near the other end of the rotary lever (8). A strip (9) and a vertical groove (10) are provided. The locking piece (9) contacts the end of the rotary lever (8) and restricts the clockwise rotation of the rotary lever (8). The rotating lever (8) is biased clockwise by a biasing means (not shown).

Reference numeral ( 11 ) is a clamp mechanism, which is provided at the rotation end of the clamp lever (12) and the rotation end of the clamp lever (12) which is rotatably supported by the end of the fixed chassis (1) on the guide groove (5) side. It is composed of a clamp member (13). The clamp member (13) is arranged so as to directly face and abut the turntable (2a) on the fixed chassis (1) side when descending, and is further made up of a magnet, thereby forming a turntable (made of a magnetic material). It is configured to hold the disc (D) by dusting 2a). Also clamp lever (12)
Is provided with a hook-shaped projection (14) and a cut-and-raised piece (54) on its side and center, respectively.

Reference numeral (15) is a carrier, which is a U-shaped external chassis (16), an internal chassis (17), and a pair of disc holders (18).
(19). A pair of guide holes (20) (20) (20) (20) having horizontal portions (20a) (20a) and inclined portions (20b) are formed on both sides of the outer chassis (16), and the front side is formed. The portion is provided with a cutout portion (21) and a tongue piece (22) inclined downward in the cutout portion (21). Further, on both side faces, there are provided through holes (23) and rollers (24) (24) which are fitted into and engaged with the guide shaft (4) and the guide groove (5) of the fixed chassis (1), respectively. A second rack (25) is arranged parallel to the insertion hole (23) on the insertion hole (23) side.

On the other hand, the pins (26) (2
6) (26) (26) are provided and such pins (26) (26)
(26) (26) through the guide holes (20) (2) of the external chassis (16)
Internal chassis (1) by inserting into (0) (20) (20)
7) Guide holes (20) (20) (20) in the outer chassis (16)
It is regulated by (20) and supported slidably. The inner chassis (17) is biased by the spring (27) in the direction of arrow A (see FIG. 1), and is normally positioned near the top surface of the outer chassis (16). (2
8) is an opening into which the tongue piece (22) of the external chassis (16) is inserted, and (29) is a cut-and-raised part (30) on the front side of the external chassis (16).
It is a notch for missing.

The disc holders (18) and (19) are rotatably supported by the top surface of the internal chassis (17), and are urged by springs (33) in such a manner that their respective rotation ends approach each other. ing. That is, the disc holders (18) and (19) respectively have the arm portions (34) and (35), and the engagement pin (36) at the end portion of the arm portion (34) is connected to the engagement groove at the end portion of the arm portion (35). By engaging the rear arm portion (35) with the spring (33) in the clockwise direction by engaging with (37), the rotating ends of the respective disc holders (18) and (19) are mutually moved as described above. It is urged to approach. Also disc holders (18) (19)
The inner side surface of the disk has the same curvature as the outer circumference of the disk (D), and further, the inner side surface is provided with cut grooves (18a) (19a) having a V-shaped cross section. Reference numeral (38) is a restriction hole for restricting the rotation range of the disk holder (19), and (39) is a screw fitted in the restriction hole.

( 60 ) A drive unit for driving the carrier (15), which includes the substrate (40),
It is composed of a motor (41), a transmission mechanism (42), and a drive gear (43). The motor (41) is mounted on the mounting portion (44) of the board (40), and the pulley (45) is pivotally mounted on the rotation shaft of the motor (41), and the worm pulley (46) is mounted on the board (40). The driving force of the motor (41) is transmitted by connecting the pulley (45) and the pulley (45) with the belt (55). Further, the pulley with worm gear (46) has the first gear (4
The large-diameter gear part (47a) of 7) meshes, and the first gear (47)
The second gear (48) meshes with the small-diameter gear portion (47b). The first gear (47) and the second gear (48) are pivotally supported on the substrate (40). Further, the first plate (49) is rotatably supported by the rotating shaft of the second gear (48), and the second plate (50) is freely rotatable at the rotating end of the first plate (49). Is pivotally attached to. A third gear (51) is pivotally supported on the first plate (49), and the third gear (51) is meshed with the second gear (48). A drive gear (43) is axially supported by the second plate (50), and a large-diameter gear portion (43a) of the drive gear (43) meshes with the third gear (51). Further, the rotation shaft (52) of the drive gear (43) is inserted into the linear groove (53) of the substrate (40) to restrict the movement of the drive gear (43). By configuring the drive part ( 60 ) in this way, the drive gear (43) is guided by the linear groove (53) to be linearly movable, and when the motor (41) is driven, the drive gear (43) is moved at an arbitrary position. 43) is driven to rotate.

To attach the carrier (15) to the fixed chassis (1),
Insertion hole (23) and roller (24) of external chassis (16)
(24) is fitted into and engaged with the guide shaft (4) and the guide groove (5) of the fixed chassis (1), respectively. At this time, the first rack (6) of the fixed chassis (1) and the second rack (25) of the external chassis (16) face each other. Then, the small diameter gear (43a) of the drive gear (43) is interposed between these two racks, and the board (40) is attached to the fixed chassis (1) so as to mesh with the respective racks at the same time. Complete.

Next, regarding the operation of this embodiment configured as described above,
This will be described with reference to FIGS.

FIG. 3 is a diagram showing the start of loading. The disc holders (18) (19) project from an insertion hole (not shown) provided in the front panel (not shown), and the cut grooves (18a) (19a) of the disc holders (18) (19) are provided. )
Then, the disk (D) is inserted into the insertion hole so that the peripheral end portion of the disk comes into contact with the disk. At this time, since the disc holders (18) and (19) are urged by the spring (33) in a direction in which they approach each other, the rotation end thereof is smaller than the diameter of the disc (D),
When the disc (D) is inserted into the insertion opening as described above, the disc holder (18) (19) is spread by the edge of the disc (D), whereby the disc (D) is clamped at its end and the disc holder is held. (18) Holds at (19). At this time, since the cut-and-raised piece (53) of the clamp lever (12) is in contact with the top surface of the outer chassis (16) of the carrier body (15), the clamp member (13) is in the lifted position (non-clamped position). ) Is positioned. Thus, when the disc (D) is held by the disc holders (18) and (19), this is detected by a detection switch (not shown),
The motor (41) is rotationally driven and the drive gear (43) is rotated counterclockwise. Since the drive gear (43) itself meshes with the first rack (6) of the fixed chassis (1), the drive gear (43) moves in the direction of the arrow B and, on the other hand, the carrier (1
The second rack (2) located in the outer chassis (16) of (5)
The external chassis (16) is sent in the direction of arrow B by meshing with 5). When the external chassis (16) is sent in the direction of arrow B in this way, the internal chassis (17) is also connected to the external chassis (16) by the spring (27), so that the external chassis (16) is accompanied by the arrow B. Move in the direction.

In this way, when the disc (D) is further conveyed into the player, when the center hole of the disc (D) reaches directly above the turntable (2a), the pin protruding from the internal chassis (17) is reached. Among the (26), (26), (26) and (26), one of the pins (26 ') located at the front comes into contact with the locking piece (9) of the fixed chassis (1), and that of the inner chassis (17). The above progress is restricted (see FIG. 4). At this time, since the protrusion (14) of the clamp lever (12) is in contact with the top surface of the internal chassis (17), the clamp lever (12) is still in the non-clamp position.

Then, when the external chassis (16) continues to move due to the rotation of the drive gear (43), the vertical groove (10) provided along the side of the locking piece (9) and the external chassis (1).
The inner chassis (17) is lowered by the action of the guide holes (20), (20), (20), (20) of 6), so that the disc (D) is placed on the turntable (2a), and at the same time. The clamp lever (12) restricted by the top surface of the internal chassis (17) rotates and the clamp member (13) descends. Then, when the external chassis (16) is further moved thereafter, the front side portion of the external chassis (16) presses the end portion of the rotating lever (8) to rotate the rotating lever (8) counterclockwise. The push pin (7) of the turning lever (8) pushes the arm portions (34) (35) of the disc holders (18) and (19) against the bias and pushes the disc holders (18) and (19). The discs (D) are released from being held by rotating them so that they are separated from each other (see FIG. 5).

By the above-described operation, the disc (D) is placed on the turntable (2a) and is pressed onto the turntable (2a) by the clamp member (13), and the disc holders (18) and (19) are further moved. By being separated from the edge of the disk (D), the turntable can be driven to rotate. In this way, the mounting of the disc (D) is completed.

When the disk (D) is carried out, the procedure reverse to the above is performed. That is, when the motor (41) is driven to rotate in the opposite direction to the above, the external chassis (16) is moved in the direction of arrow C, and the turning lever (8) is turned clockwise in connection with this. The disk holders (18) and (19) approach each other and hold the edge of the disk (D). And then
By the action of the vertical groove (10) and the inclined portions (20b) (20b) (20b) (20b) of the guide holes (20) (20) (20) (20), the internal chassis (17) rises, At the same time, the protrusion (14) is pressed upward by the top surface of the internal chassis (17) to rotate the clamp lever (12), and the clamp member (13) is separated from the upper surface of the disc (D). And internal chassis (17)
Pins (26) (26) (26) (26) are guide holes (20) (20)
(20) When positioned at the upper ends of (20) and (20), the inner chassis (17) moves in the direction of arrow C with the movement of the outer chassis (16), and the disc (D) passes through the insertion hole to the outside of the player. Be reached. At this time, clamp member (1
Since the protrusion (14) is lifted up along the tongue piece (22), the clamp lever (12) of the third member (3) is rotated to be positioned at the non-clamp position. In this way, the disc (D) is transported to the outside of the player, and the disc can be attached and detached.

(G) Effect of the Invention As described above, according to the present invention, since the disc is securely held by the disc holder during its transportation,
Even if vibration is applied to the player from the outside, the player will not be displaced from the carrier. Further, since the pair of disc holders are used as the holding members, the disc holder can be projected from the insertion hole in the conventional technique, and the amount of protrusion of the disc can be increased. Further, the disc holding device is composed of a pair of disc holders and a rotating lever, and the opening and closing of the disc holder is controlled by the movement of the carrier, so that the number of parts is small and the configuration is extremely simple.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention.
FIG. 3 is an exploded perspective view, FIG. 2 is a perspective view of the carrier seen from the back side, and FIGS. 3A, 3B and 3C are plan views, side views and front views, and FIG. (A) And (b) is a plan view and a side view showing the same operation, and FIGS. 5 (a) and (b).
And (c) are a plan view, a side view, and a front view showing the same operation. (1) …… Fixed chassis, (7) …… Pressing pin, (8)
...... Rotating lever, (15) …… Transporter, (18) (19) ……
Disc holder, (18a) (19a) …… notch, (33)…
… Springs (biasing means), (34) (35) …… Arms.

Claims (1)

[Claims] 1. A conveyance body slidably disposed on a fixed chassis, a pair of disc holders rotatably supported by the conveyance body, and along side surfaces of the respective disc holders on opposite sides. And the cut groove, the arm portion also arranged on the disk holder, the biasing means for biasing the rotating ends of the disk holder toward each other, and the shaft rotatable about the fixed chassis. A rotation lever supported by the rotation lever; and a pressing pin implanted at one end of the rotation lever. By moving the transport body, the end of the rotation lever is brought into contact with the front end of the transport body, Then, by rotating the rotating lever, the pressing pin is brought into contact with the arm portion of the disk holder, and thus the disk holder is separated from each other against the bias of the biasing means. It is characterized by rotating to Disk holding device.