JPS5914180A - Recording and reproducing device - Google Patents

Abstract

PURPOSE:To simplify the constitution and to reduce the cost for a recording/ reproducing device, by providing a holding tool for clamping tool, a clamping releasing mechanism and a shifting means which shifts a recording medium having a released clamping mode onto a turntable. CONSTITUTION:A holding tool 36 which holds a clamping tool of a signal recording medium is fixed at the highest part of a shaft, and guide rails 37a and 37b are provided at the inner part of a recoding/reproducing device. A pickup which is capable of recording/reproducing slides along the rails 37a and 37b by a rack 39. A gear 40 is set at the rear side of an upper cover 20 and driven by a motor. Thus a clamping tool releaseing mechanism 42 set at the back of a dust cover 41 is driven. The cover 41 is attached to the cover 20 with a hinge 43 so that it can be freely opened and closed. The mechanism 42 includes a clamping tool holding rubber 44, a clamping state releasing pin 45, a release gear 46, a spring 47, a worm 48, a shaft 49, a gear 50 which engages the gear 40, and a mechanical base 51 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a general high-density signal recording medium, such as a video disc, which has a structure that allows it to be placed on a turntable without directly touching the recording surface of the signal recording medium. Due to its high density, care must be taken when handling it. If the surface has scratches, fingerprints, etc., it may cause dropouts or locked groups, making it impossible to obtain stable images. Therefore, there is a need for a system that allows the video disc iζ to be placed on a turntable in a protected manner without directly touching it.

OBJECTS OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide a recording/reproducing device with a simple configuration and low cost.

Structure of the Invention In order to achieve the above-mentioned object, the recording/reproducing device of the present invention includes two disc-shaped signal recording media each having a recording surface on which a signal is recorded or can be recorded, with the recording surfaces thereof facing each other. A recording/reproducing device for recording or reproducing data using a signal recording body having fasteners that are held removable and fastened to each other through a center hole thereof, and a receiver for receiving the fasteners. and a release mechanism for releasing the fastening caused by the fastener, and a means for transporting the released recording medium onto the turntable.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on the drawings. First, a first specific example of a signal recording medium used for recording and reproduction will be explained based on FIGS. 1 to 5. In the figure (
la) (Ib) is a disk-shaped signal recording medium (hereinafter referred to as a disk), which has a recording surface on only one side, and is assembled with the recording surface facing inside and the non-recording surface facing outside.

The disks (1a) (lb) have a center hole (not shown in the figure).
1c) (ld) is provided. (2) is a fastener,
The disk (Ia) is engaged with the center hole (lc) (ld).
) (lb) are fastened together. (3) is the disk (la
) (lb) is a ring-shaped body that protects the outer circumference of the disk (xa
) (lb), it consists of a thicker part (8a) with a slightly larger diameter and a thinner part (8b) with a slightly smaller diameter. The fastener (2)
The claws (4) for fastening the disks (la) (H:+) are provided at angles of 120 degrees so as to be slidable in the radial direction. <5) is a rotating member that engages with a release pin (described later) of the recording/reproducing device. (6) and (7) are holders made of, for example, high-rigidity resin, which are interlocked to form the central holes (Ic) and (ld), and the slightly smaller diameter bulges (6a) ( 7a) and disk (la) (lb
), and a mechanism for interlocking the pawl (4) and the rotating member (5) is provided within the swollen portions (6a, 7a). The holder (61 (7)) is also formed with holes (6c) (7c) into which the rotating member (5) is rotatably fitted.

The pawl (4) has a V-shaped 1 (4a) on the side surface that engages with the disks (Ia) (lb), and a pin that engages with the cam groove (5a) of the rotating member (5). It has a shaped body (8). (9) is a coil spring, and hole (7d) of holder (7)
is engaged with the hole (5b) of the rotating member (5), urging the rotating member (5) to rotate in the direction indicated by the arrow in FIG. Historically, the holder (7) is formed with a guide portion (7e) that guides the sliding movement of the claw (4). By the way, FIG. 4 is a plan view showing the internal structure of the fastener (2) with the holder (6) removed.
) is biased counterclockwise by the coil spring (9), and the cam groove (5a) is engaged with the pin-shaped body (8), so the eight pawls (4) (7e) and is biased in eight outward directions (as shown by the arrows in the figure).The rotating member (5) has a hexagonal hole (5) in the center.
C) is formed, and by engaging a pin etc. with a hexagonal cross section from the outside and rotating it clockwise, the claw (
4) can be retracted in the opposite direction. Figure 5 shows the fasteners (
2) shows the state in which the discs (la) and (lb) are fastened, and as mentioned above, the pawl (4) is attached to the coil spring (
9) and the rotation m11 member (5), the disk (la
) (Ib) is the plate part (6
b) (7b) and the slanted surface of the V-shaped groove (4a) of the claw (4) and are fastened together. The outer periphery of the disk (1aM1b) sandwiches the thin part (3b) of the inner periphery of the annular body (3). As mentioned above, the claw (4) is biased through the cam groove (5a), so even if the claw (4) is pushed from the outside with a finger, it cannot be easily retracted and the disk (1)
The conclusion of a) (Ib) can be easily released.
stomach. The above is a description of a specific example of the 2F1 signal recording medium. In this specific example, the rotating member (5) is engaged with and rotated from the outside by, for example, a bin of a recording/reproducing device (described later), so that the disk ( la) (lb) can be concluded and unconcluded. The outer peripheries of the disks (la) (Ib) are held by inserting them into the ring-shaped body (3). It's okay.

Next, regarding the second specific example of the signal recording body, FIGS.
This will be explained based on the diagram. The rough configuration of this second specific example is similar to that of the first integrated example fA1, but the internal structure of the fastener OQ is different, and the ring-shaped body (3) of the first specific example is replaced with a disk (la). A ring-shaped body 0υ with a triangular cross-section is attached to each outer circumference of (lb) by adhesive etc. (The difference is that it is bent. 02 is a claw that fastens the discs (Ia) and (lb), and slides in the radial direction. 0 to move.
4α Xun is a holder. Fig. 8 is a plan view showing the internal structure of the fastener 0 () with the holder θ rule removed. There are 11 built in. 2 claws (
A spring [phase] is incorporated between the claws (b) and
is biased toward the outer periphery. Center holes (18a) (14a) are formed in the holder aha (+41),
For example, when a round-tipped bottle is inserted into the center holes (18a) (14a), the distance between the abutting portions (i2a) of the claws (a)
When the pins are pushed apart and the claws are retracted as shown in FIG. 9, the fastening of the disks (Ia) and (lb) can be released. Figure 10 shows the state in which the fastener is fastening the discs (la) and (lb).
The fastening is performed in the same manner as in the first example. That is, it is sandwiched and fastened by the plate portion Dab) (t4b) on the outer periphery of the holder 04) and the inclined surface of the V-shaped groove (t2b) of the claw 0'4. Further, the outer peripheries of the disks (la) and (lb) are fitted together with an appropriate gap by the aforementioned ring-shaped body 01). If the annular body αυ is made into a J-shaped triangular section as shown in Fig. 10 and the outer periphery of the disk (la) (lb) is inserted and fixed into the groove (lla), the disk (la) (lb) will be intentionally formed at the outer periphery. Even if you try to separate them, you can create a structure that makes it difficult to do so.

Hereinafter, the specific examples described above are not independent of each other, but can be implemented by combining each element separately. For example, it is possible to combine the fastener (2) and the disk to which the annular body θ1) is attached, the fastener O0 and the annular body (3), etc.

Next, an embodiment of a recording and reproducing apparatus according to the present invention that can perform recording and reproducing using the signal recording medium described above will be described. The recording and reproducing device of the first embodiment is shown in which recording and reproducing is performed using a disk.
A step portion t2]) having a slightly larger diameter is provided. The cutout is a notch provided so that a finger can easily be inserted when placing the signal recording medium.

A turntable is provided below the hole on the upper surface of the upper cover (E). The turntable) is driven by, for example, a flat-faced motor. (C) is the chassis, and the shaft (C) fixed to this chassis (C) via the shaft holder is removed (+).
Is the turntable (g) the boss? The shaft is rotatably assembled to the shaft via a bearing (not shown) attached to the shaft. The central part of the turntable (goods) (the ring (goods) connects the turntable through the legs (27a)
A vertically movable locking mechanism (J is provided on the other ring below the leg (27a)) according to an appropriate amount. Below this ring (goods) is a ring that is guided by the shaft holder Ht and slides on the top (
) is provided. A pin 0υ is attached to the ring (1). (to) is a balk, which is rotatably supported by a support member (to) fixed to the chassis (c), and engages with the bin 6υ to cause the ring (to) to slide up and down. The balk (to) is driven by the drive mechanism (
(not shown). Turntable (E)
There is a Qi/f-boss ■ above the center of the
Center hole (Ic) (ld) of the disc-shaped recording medium (signal recording medium)
). A receiver (7) for receiving the fastener (2) of the signal recording body is fixed to the top of the shaft (c). There is a guide rail (87a) at the back of the recording/playback device.
(87b) is provided, and along this, a recording/reproducing pickup incorporating, for example, a semiconductor laser is provided.
is designed to slide by means of a rack. A partially exposed gear is provided at the rear of the upper cover (E), and by driving this with a motor etc., the fastener release mechanism 02 provided on the back of the dust commer 0υ is installed.
It is becoming difficult to drive. The dust cover (B) is attached to the upper cover (E) with a hinge so that it can be opened and closed. The fastener release mechanism (6) includes a fastener presser rubber ■, a fastening release pin ■, a release gear (7), and a spring 671. It consists of a worm μs, a shaft), a contact gear meshing with a gear), and a mechanical base 1511.

Fig. 12 shows a state in which the signal recording medium of the first specific example is placed on the recording/reproducing device and the dust cup is closed. Stepped section 3
The 1ζ ring (3) is supported and positioned at the same time.

Further, the fastener (2) is supported by a receiver (to). When the dust cover 0 is closed in this state, the fastener (2) is pressed and fixed by the fastener presser rubber. In this state, the ring (on the ring) is raised upwards and supports the disk (1b). A magnet 5 is attached to the lower surface of the turntable (G), and a coil and a printed circuit board are provided opposite to it, forming a plane facing type motor. Further, the dust cup (-00 becomes a gear when closed) and the abutment gear mesh with each other, and rotation is transmitted from the drive source. Unfastening bin 4,
The configuration of the release gear (G) and the spring θ is as shown in FIG. 14. As shown in FIG.
A spring θ is inserted between the release gear () and the release pin (), and the release pin (c)
If it does not fit into the hexagonal hole (5c) of the cooperating member (5), the unfastening pin (c) has escaped and the spring is 0.
7) It is biased downward by 1. In this state,
When it is rotated by a drive source through the worm, the shaft θ@, the abutting gear (7), and the gear, the hexagonal hole (5c) and the disengagement bin are connected to the hexagonal hole (5c).
are fitted, and the rotating member (5) rotates. When the rotating member (5) is further rotated in the direction in which the claw (4) is retracted, the fastening between the disks (1a, 1b) and the fastener (2) is released. In this state, the disc (1a) is connected to the receiver via the fastener (2) and the upper cover (1) via the annular body (3).
) is supported by the step Q]). On the other hand, the disk (1b) is only supported by the ring. Next, the ring (b) is the leg (27a), the ring (c), the ring (to), the bottle 0υ, the balk (a), the mouth, the do■
When the disk (1b) is lowered by the driving source via the disk (1b), the disk (1b) is also lowered, resulting in the correct state shown in FIG. In other words, the disc (1b) is on the turntable■
is transferred. At this time, the disk (1b) has a center hole (1
d) and the tapered boss ■ are engaged with each other to determine the position. Also, since the rings '(C) and (To) are not in contact, the turntable (E) can be rotated freely, and the pink-up (To) is connected to the disk (LA) (LB).
) and can record or reproduce signals on the recording surface of the disk (1b). Next, when recording or playback is finished, the ring (on the ring) rises and returns to the state shown in Fig.
) in the direction of tightening. Now the disk (la)
(lb) is both fastened and (2)1 is fastened and the original state 1
I'm back. Next, by opening the dust cover θ, the signal recording medium can be taken out.

The above is a description of the recording and reproducing apparatus of the first embodiment, which can perform recording and reproducing using the signal recording medium of the first concrete example.

Next, a recording and reproducing apparatus of a second embodiment for recording and reproducing using the signal recording medium of the second specific example will be explained based on FIGS. 15 and 16. The recording and reproducing apparatus that handles the signal recording medium of the second specific example is approximately the same as the recording and reproducing apparatus shown in FIGS. 11 to 14, but the structure of the fastener release mechanism is slightly different. FIG. 15 shows a state in which the signal recording medium of the second specific example is placed on the recording/reproducing apparatus and the dust cover is closed. The fastener release mechanism is the main body Akatsuki, fastening release pin open, release gear l66),
The bin i5η, the worm wheel (c), the gear β9), the bin (601, etc. are different, but the rest is the same as the fastener release mechanism (6). Also, the stepped part &]) are required on the upper cover, f,
(Similar to the embodiment shown in Fig. 11, the gear 11 is
, the abutment gear member, shaft θ9, and the worm gear (which is integral with the worm wheel state) are driven, and when the worm gear member (abutment gear member, shaft θ9, and worm gear support) is driven, the release gear (■) that is slidably supported by the η of the bottle is engaged with the release gear (■). The release pin rotates, and the threaded part @1 formed on the release pin is screwed into the main body ((because it is threaded with the side, it is caught in the action of the screw and descends as shown by the arrow in the figure). As a result, the distance X shown in FIG. 8 is expanded by the unfastening pin, and the fastening between the disks (la) and (Ib) and the fastener OQ is released.After that, the same process as in the embodiment shown in FIG. (to the ring) is lowered and recording or reproduction is performed. This is shown in Fig. 16. Disk (1a)
is supported by the fastener 0 (1), and the disc (1b) is positioned by the tapered boss (cs') and placed on the turntable (J3).
After that, playback or recording is performed in line 7.1''. Next, when the playback or recording is completed, the ring (c) rises and returns to the state shown in FIG. The hata again engages the disks (Ia) and (Ib) and returns to its original state by one point.

Next, open the dust cover to take out the signal recorder. The above is a description of the recording and reproducing apparatus of the second embodiment that performs recording and reproducing using the signal recording medium of the second specific example. As described above, the configurations of the recording and reproducing apparatuses of the two embodiments are substantially the same, and both of the recording and reproducing apparatuses of the two embodiments have relatively simple configurations.

Effects of the Invention As described above, according to the present invention, it is possible to prevent foreign matter from adhering to the disc during inconvenient use, and the structure of the Hi'i recording device can be made relatively simple. Very suitable for ffl production.

[Brief explanation of the drawing]

Figures 1 to 5 show a first specific example of the signal recording body.
The figure is an exploded perspective view of the signal recorder, Figure 2 is a perspective view of the fastener, Figure 8 is an exploded perspective view of the fastener, Figure 4 is a plan view showing the internal structure of the fastener, and Figure 5 is a signal Cross-sectional view of recording body, No. 6
10 to 10 show a second specific example of the signal recording body, FIG. 6 is an exploded perspective view of the signal recording body, FIG. 7 is a perspective view of a fastener,
8 and 9 are plan views showing the internal structure and operation of the fastener, FIG. 10 is a cross-sectional view of the signal recording body, and FIG. 11 is a recording and reproducing operation using the signal recording body of the first specific example. f, C A partially cutaway perspective view of the recording/reproducing apparatus according to the first embodiment of the present invention, 12th
13 and 13 are cross-sectional views showing the configuration and operation of the recording/reproducing apparatus of the first embodiment, FIG. 14 is an exploded perspective view of the same essential parts, and FIG.
5 and 16 use the signal recording medium of the second specific example.
FIG. 2 is a cross-sectional view showing the configuration and operation of a recording/reproducing apparatus according to a second embodiment of the present invention that performs recording/reproducing. (la) (lb) - disk, (Ic) (Id)... center hole, (21 - = fastener, (3)... ring-shaped body, (4)
... Claw, (4a) ... V-shaped groove, (5) ... Rotating member, (5a) ... Cam groove, (5b) ... Hole, (5c
)...Hexagonal hole, +6147)...Holder, (6a)
(7a)...Bulge part, (6b) (7b)・Plate part, (6c) (7c)・=hole, (7d)−・hole, (7
e)...Guide part, (8)...Bin-shaped body, (9)...
... Coil spring, 01 ... Fastener, αυ ... Annular body, @ ... Claw, 0301 ... Holder, (18a) (1
4a)...Center hole, ni)...Top cover, 3υ...
・Stepped section, (goods)...turntable, (c)...chassis, (c)...shaft, @@(7)...ring, 0υ...bottle, (2) ... balk, so... support member, ■... rondo, (to)... holder, CI...
...Pickup, 2)...Gear, θ◇...Dust cover, (B)...Fastener release mechanism, 0→...Fastener presser rubber, 4...Fastener release bin, (To )...release gear, θ...spring, (g)...worm,
-... Shaft, ring... Contact gear, -... Fastening release pin, (5Ii)... Release gear, 671... Bin, -... Worm wheel, (5 (to) ··gear,
-)...Bin, Il+...Screw part, sister...Main agent Yoshihiro MorimotoFigure 1Figure 26b 7b'/-Figure 5Figure 4Figure 5Figure CFigure 7

Claims (1)

[Claims] 1. The recording surfaces of two disc-shaped signal recording media having a recording surface on which a signal has been recorded or can be recorded on one side can be fastened to and separated from each other by placing the recording surfaces of the media facing each other (ζ) through their center holes. A recording/reproducing device that performs recording or reproducing using a signal recording body having a fastener to hold, the receiver comprising a receiver for receiving the fastener, a release mechanism for releasing the fastening by the fastener, and a release mechanism for releasing the fastener. Recording medium on turntable L
A recording/reproducing device having a means for transferring the data to a computer.