JPH073723B2 - Day-scrolling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a disk-discharging device for transporting, for example, a disk-shaped recording medium into a player.

(B) Conventional Technology As a conventional disk-disposing device for transferring a disk into a player, for example, Japanese Patent Laid-Open No. 60-80160 (G11
The technology disclosed in B17 / 04) is known. In such a conventional technique, a transport tray is used to transport the disc into the player, and the tray moves inside and outside the player through an opening on the front surface of the player. Further, in such a conventional technique, a rack is provided on the side surface of the tray, and the tray is driven by engaging a drive gear with the rack.

However, in the above-mentioned conventional technique, since the rack is required to have a length corresponding to at least the moving stroke of the tray, there is a limit in reducing the size of the tray in the rack length direction, which reduces the size of the player body. It was a big drawback.

On the other hand, in the technique disclosed in Japanese Utility Model Laid-Open No. 59-149255 (G11B17 / 04), the first rack member and the second rack member are provided as the disk conveying means, that is, the second rack member used as a tray. The rack member is slidably stacked on the first rack member, and the first rack member is moved at the time of disc transfer, and the second rack member is slid on the first rack member. The moving stroke of the second rack member is increased. By using such a technique, the rack length of the second rack member can be made smaller (half) than the moving stroke of itself, and the size of the second rack member (tray) can be made smaller. Since the second rack member has to be stacked on the first rack member in terms of the structure, the thickness of the moving member constituted by the first and second rack members becomes large, and the second rack member is provided in the player. Since a space for moving the first rack member together with the member (tray) is required, there is a problem that the thickness of the entire player becomes large. Further, as a driving means, a fixed rack, a rack of the first rack member,
The rack of the second rack member, the first gear, and the second gear are used, and these racks and gears must be engaged at the same time at the time of assembly, resulting in poor workability.

(C) Problems to be Solved by the Invention The present invention provides a tray (conveyer) having a moving stroke of a rack length or more with a simple structure, thereby making it possible to reduce the size of the tray. It is intended to provide a device.

(D) Means for Solving Problems The present invention provides a fixed chassis, a carrier slidably disposed on the fixed chassis, and the fixed chassis and the carrier parallel to the sliding direction. And first and second racks arranged to face each other, and a drive gear interposed between the first and second racks and meshing with the respective racks,
A motor installed on the fixed chassis and a transmission mechanism that is also arranged on the fixed chassis and that transmits the driving force of the motor to the drive gear and that supports the drive gear so as to be movable in the sliding direction. It is configured to have.

(E) Action When the motor is rotationally driven, this driving force is transmitted to the drive gear by the transmission mechanism, and the drive gear starts rotating. When the drive gear rotates in this way, the drive gear moves along the first rack by meshing, and at the same time, the second rack meshing with the drive gear is urged by the drive gear, thereby driving the transport body. It is moved in the same direction as the gear moving direction.

(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 disk (D), and a pick-up device (3) for optically reading information recorded on the disk (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).

( 11 ) is a clamp mechanism, which is provided at the clamp lever (12) and the pivot end of the clamp lever (12), which is pivotally 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 disposed so as to directly face and abut the turntable (2a) on the fixed chassis (1) side when descending, and is further constituted by a magnet, thereby forming a turntable (a magnetic substance). It is configured to hold the disk (D) together with 2a). Also clamp lever (12)
A hook-shaped projection (14) and a cut-and-raised piece (54) are provided on the side portion and the central portion, respectively.

Reference numeral (15) is a carrier, which is a U-shaped external chassis (16), an internal chassis (17), and a pair of disk 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 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) Guide holes (20) (2) of (26) to external chassis (16)
Internal chassis (1) by inserting into (0) (20) (20)
7) Guide holes (20) (20) (20) in the external chassis (16)
It is regulated by (20) and supported slidably. The inner chassis (17) is urged in the direction of arrow A (see FIG. 1) by the spring (27), 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 immersed, 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 disk holders (18) (19) are pivotally supported (31) (32) on the top surface of the internal chassis (17) and are biased by springs (33) in a direction in which the respective pivot ends approach each other. ing. That is, the disk holders (18) and (19) have arm portions (34) and (35), respectively, and the engagement pin (36) at the end of the arm portion (34) is fitted into the engagement groove at the end of the arm portion (35). By engaging the rear arm part (35) with the spring (33) in the clockwise direction by engaging the same with (37), the rotating ends of the disk holders (18) and (19) are moved to each other as described above. It is urged to approach. Also disk holder (18) (19)
The inner side surface of the disk has the same curvature as the outer circumference of the disk (D), and the inner side surface is provided with kerfs (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 ) is a drive unit that drives the carrier (15), and
0), motor (41), transmission mechanism (42), and drive gear (4)
It is composed of 3). Motor (41) is the substrate (40)
The pulley (45) is attached to the mounting part (44) of the belt, the pulley (45) is pivotally attached to the rotation shaft, and the pulley (46) with a worm gear and the pulley (45) arranged on the substrate (40) are attached to the belt. The driving force of the motor (41) is transmitted by coupling (55). Further, the large-diameter gear portion (47a) of the first gear (47) meshes with the worm gear pulley (46), and
The second gear (48) meshes with the small-diameter gear portion (47b) of the gear (47). 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 rotatably supported by the second plate (50), and a large-diameter gear portion (43a) of the shaft moving 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 rotationally driven at an arbitrary position.

The carrier (15) is attached to the fixed chassis (1) by inserting the outer chassis (16) through hole (23) and roller (2).
4) It is carried out by fitting (24) and (24) into 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 substrate (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 disk 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 disk holders (18) (19) are provided. )
Then, the disk (D) is inserted into the insertion hole so that the peripheral end portion of the disk contacts. At this time, the disk holders (18) and (19) are urged by the spring (33) toward each other, so that the rotation end thereof is smaller than the diameter of the disk (D).
When the disk (D) is inserted into the insertion port as described above, the disk holder (18) (19) is spread by the edge of the disk (D), whereby the disk (D) is clamped at its edge and the disk holder is held. (18) Holds at (19). At this time, since the cut-and-raised pieces (53) of the clamp lever (12) are in contact with the top surface of the external chassis (16) of the carrier (15), the clamp member (13) is at the lifted position (non-clamped position). ) Is positioned. Thus, when the disk (D) is held by the disk 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 external chassis (15) of the carrier (15). The external chassis (16) is fed in the direction of arrow B by meshing with the second rack (25) arranged in 16). When the external chassis (16) is sent in the direction of the 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) follows the arrow. Move in the B direction.

In this way, when the disc (D) is conveyed into the player, when the center hole of the disc (D) reaches just 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 b (26 ') located at the front comes into contact with the locking piece (9) of the fixed chassis (1), and the inner chassis (17) Further 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, after that, 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).
By the action of the guide holes (20), (20), (20) and (20) of 6), the internal chassis (17) descends, so that the disk (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, after that, when the external chassis (16) further moves, the front portion of the external chassis (16) presses the end portion of the rotating lever (8) to rotate the rotating lever (8) counterclockwise. By this, the pressing pin (7) of the rotating lever (8) presses the arm portions (34) (35) of the disk holders (18) (19) against the bias, and the disk holders (18) (19) are pressed. The discs (D) are released from being held by rotating the discs (D) so that they are separated from each other (see FIG. 5).

By the above-mentioned operation, the disk (D) is placed on the turntable (2a) and is pressed onto the turntable (2a) by the clamp member (13), and the disk holders (18) and (19) are further moved. By separating from the edge of the disk (D), rotational drive by the turntable becomes possible. In this way, the mounting of the disk (D) is completed.

When carrying out the disk (D), the procedure is reversed. That is, when the motor (41) is rotationally driven in the opposite direction to the above, the external chassis (16) is moved in the direction of arrow C, and accordingly the rotary lever (8) is rotated clockwise first. Then, the disk holders (18) and (19) come close to each other and hold the end edge of the disk (D). And then
The inner chassis (17) rises due to the action of the vertical groove (10) and the inclined portions (20b) (20b) (20b) (20b) of the guide holes (20) (20) (20) (20). At the same time, the projection (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 disk (D). And internal chassis (17)
Pins (26) (26) (26) (26) are guide holes (20) (20)
(20) When positioned at the upper end of (20), the inner chassis (17) then moves in the direction of arrow C as the outer chassis (16) moves, and the disk (D) passes through the insertion hole. Being outside. At this time, since the protrusion (14) of the clamp member (13) is lifted up along the tongue piece (22), the clamp lever (12) is rotated, and thus the clamp member (13) is positioned at the non-clamp position. In this way, the disc (D) is conveyed to the outside of the player, and the disc can be attached and detached.

(G) Effects of the Invention According to the above-described device, the length of the rack (second rack) to be arranged on the carrier is significantly smaller than the moving stroke of the carrier (about It is possible to reduce the size of the carrier in the rack length direction.

Further, as the means for driving the transport body in this way, since it is configured to move in the transport direction while rotating only the gear (drive gear) that meshes with the rack of the transport body, it moves within the player as in the prior art. It is not necessary to stack the rack member (first rack member) on the carrier and to separately provide it, and thus it is not necessary to provide a space corresponding to the moving space of the rack member (first rack member) in the player. Therefore, the player does not become large in the thickness direction.

Further, at the time of assembling, it is sufficient to engage the drive gear with the first rack and the second rack, so that the assembly is easy and the workability is improved.

[Brief description of drawings]

Each of the drawings shows an embodiment of the present invention. Fig. 1 is an exploded perspective view, Fig. 2 is a rear view of the internal chassis, and Figs. 3 (a), (b) and (c) show the operation. A plan view, a side view and a front view of a main part, FIGS. 4 (a) and 4 (b) are plan views and side views showing the same operation, and FIGS. 5 (a), (b) and (c).
FIG. 6A is a plan view, a side view, and a front view of a main part, showing the same operation. (1) ... Fixed chassis, (6) ... first rack,
(15) …… Transporter, (25) …… Second rack, (41)…
… Motor, (42) …… Transmission mechanism, (43) …… Drive gear.

Claims (1)

[Claims] 1. A fixed chassis, a carrier slidably arranged on the fixed chassis, and a fixed chassis and a carrier arranged parallel to the sliding direction and opposed to each other. First and second racks, a drive gear interposed between the first and second racks and meshing with the first and second racks, a motor installed on the fixed chassis, and the same. And a transmission mechanism that is arranged in a fixed chassis and that transmits the driving force of the motor to the drive gear and that supports the drive gear so as to be movable in the sliding direction.