JPS6348095B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic loading device for automatically loading a disk-shaped recording medium onto a predetermined recording medium supporter, and the present invention relates to an automatic loading device for automatically loading a disk-shaped recording medium onto a predetermined recording medium support. The present invention provides a device suitable for use as an automatic recording medium loading/unloading means for a disk player that reproduces signals.

Recording in which audio signals, video signals, or both are recorded on a disk-shaped recording medium using mechanical means, optical means, etc., and the signals are mechanically or optically reproduced from the recorded disk-shaped recording medium. The reproduction method is known. Such a system has advantages such as the ease of increasing the signal recording density and the ease of handling the recording medium, and there are signs that it will become widely used as a video disk system in the video signal field. In addition, in the field of audio signals, digital audio disk systems have been put into practical use that digitally process and record audio signals to obtain high-density recording and reproduction of excellent quality audio. In these systems,
A so-called disk player is used that rotates a disk-shaped recording medium to reproduce the signals recorded thereon. Conventionally, in order to install a disk-shaped recording medium into this disk player,
This was generally done manually by the player user. This manual mounting work is complicated by the need to accurately align the recording medium to the recording medium support and to carefully place the recording medium to prevent eccentric rotation. In addition, there was a risk of inadvertently touching the recording surface and damaging or contaminating the recording surface. Therefore, in order to avoid these disadvantages of manual mounting, it has been conventionally proposed to automatically mount the recording medium on the recording medium support. For example, when a storage medium is placed inside a case called a casing and this casing is installed in a disc player, the recording medium is exposed to the outside of the casing and is placed in a predetermined position within the disc player. It was designed to be placed in However, these conventional automatic mounting mechanisms have disadvantages in that they are extremely complex and expensive.

The automatic disk-shaped recording medium loading device according to the present invention eliminates the above-mentioned drawbacks in loading conventional disk-shaped recording media, and can automatically load the disk-shaped recording medium reliably without damaging the recording surface with a simple configuration. It is something. DESCRIPTION OF THE PREFERRED EMBODIMENTS The automatic loading device according to the present invention will be described below with reference to the drawings, taking an example in which it is applied to a digital audio disc player.

FIG. 1 is a plan view of the entire player to which the automatic mounting device according to the present invention is applied, and FIG.
It is a sectional view taken along the - line in the figure. 1 is a side plate provided on the player, and a sliding member 2 is slidably attached to this side plate 1. For example, a groove (not shown) is provided in the sliding member 2, and one side plate 1 is provided with a groove (not shown).
This is accomplished by disposing a protrusion or roller (not shown) that fits into this groove. The sliding member 2 is
It consists of a guide part 2a and a flat plate part 2b, and a plate body 3, which forms part of the outer case of the player, is fixed thereto. A rack plate 4, which will be described in detail later, is built into the guide portion 2a, and a rack at the bottom of this rack plate 4 is connected to a pinion provided on the player body.
The sliding member 2 is caused to slide by being driven by a gear 5 (FIGS. 4 and 5). FIG. 1 shows a state in which the sliding member 2 is pulled out from the player body (solid line), and from this state it slides to the left in the figure and is pulled into the player body. The retracted state is indicated by two-dot chain lines 2' and 3'. Note that FIG. 2 is a sectional view of the sliding member 2 in a retracted state. Flat plate part 2 of sliding member 2
A position regulating member 6 for regulating the position of the disc-shaped recording medium is disposed below b, and this position regulating member 6 engages with the outer circumference of the disc-shaped recording medium, as the structure is clearly shown in FIG. It has a position regulating part 6a which holds the recording medium and regulates its position, and this part passes through a hole provided in the flat plate part 2b of the sliding member 2 and faces above the flat plate part 2b. Further, since the position regulating member 6 is provided with a pin 6b and is fitted into an inclined hole 4a formed in the rack plate 4, it is possible to move up and down by being guided by the inclined hole 4a as the rack plate moves. There is. 1 and 7' indicated by two-dot chain lines indicate a state in which the position of the disk-shaped recording medium is regulated by the position regulating portion 6a of the position regulating member 6. In FIG. Reference numeral 8 denotes a chucking member holding member to which a chucking member 9 is rotatably attached. The chucking member 9 has a built-in magnet 9a and serves as a magnetic chuck. A recording medium support section 10 is located below this chucking member 9, and this recording medium support section 10 is rotated by a motor 11 to rotationally drive the mounted recording medium.

4 is a side view of the player shown in FIG. 1, and FIG. 5 is a side view of the rack plate 4 alone. From these figures, the tracking member holding member 8
It can be seen that a long hole 8a is formed in the side surface of the player, and a pin 1a provided on the side plate 1 of the player is fitted into this long hole 8a. This allows the chucking member holding member 8 to move up and down with respect to the side plate 1 within the range of the elongated hole 8a. Further, a pin 8b protrudes from the inner side of the side surface of the chucking member holding member 8, and this engages with cam plates 12a and 12b fixed to the rack plate 4, and as the rack plate 4 moves, the pin 8b is moved to the cam plate. The entire chucking member holding member 8 is moved up and down while being guided by the inclined portion of 12a or 12b. Further, a long hole 2c is formed in the guide portion 2a of the sliding member 2, and a pin 4b provided on the rack plate 4 is fitted into this long hole 2c. This allows the rack plate 4 to move relative to the sliding member 2 within the range of the elongated hole 2c. 13 is a stopper that engages with a notch 14 provided in the guide portion 2a of the sliding member 2.

The above description is an example in which the automatic loading device according to the present invention is applied to a digital audio disc player, and the reproduction of signals from a disc-shaped recording medium is performed optically. That is,
The disk-shaped recording medium mounted on the recording medium support 10 is irradiated with laser light from an optical head (not shown) from below and scanned in its radial direction. In such a case, the laser beam may penetrate the disk-shaped recording medium and leak upward, or if the laser beam is emitted with no disk-shaped recording medium installed due to some malfunction, it may be emitted directly upward. However, the part 8c protruding from the chucking member holding member 8 is a laser beam shielding plate, and there is a laser beam blocking plate 8c on the upper part corresponding to the movement path of the optical head. The above-mentioned fear is eliminated by blocking the laser light from the optical head coming from below.

Next, the operation of the disk-shaped recording medium automatic loading device according to the present invention having the above-described configuration will be explained. The sliding member 2 slides toward and away from the recording medium support 10, but first, the sliding member 2 slides toward and away from the recording medium support 10.
0, that is, the state shown in FIG. 1 where it is pulled out from the player body. At this time, the chucking member holding member 8 is in a position where its pin 8b engages with the cam plate 12a of the rack plate 4 and is moved upward. In this state, the position regulating member 6 is pulled out from the player body along with the sliding member 2, and the disk-shaped recording medium is positioned at the position of the position regulating member 6 as shown at 7 in FIG. It is placed so as to be held by the regulating portion 6a. Next, the pinion gear 5 is rotated to drive the rack plate 4, thereby causing the sliding member 2 with the position regulating member 6 to slide close to the recording medium support section 10. 1 to the positions indicated by two-dot chain lines 2' and 3'. In this state, the position regulating member 6 is housed within the player body, and the recording medium support section 10
The disc-shaped recording medium is placed above the recording medium support section 10 as shown at 7' in FIGS. 1 and 2. The sliding member 2 is now fixed by the stopper 13 engaging with the notch 14 provided in the guide portion 2a, but the rack plate 4 is further driven within the range allowed by the elongated hole 2c, and then the pinion gear 5 is stopped and stops. Although not shown, the pinion gear 5 is stopped by means associated with the rack plate 4. When only the rack plate 4 moves, the pin 6b of the position regulating member 6 is guided by the inclined hole 4a of the rack plate 4, so that the entire position regulating member 6 is moved downward. Due to this movement, the disk-shaped recording medium held by the position regulating section 6a leaves the position regulating section 6a, and its center hole fits into the recording medium support section 10. In this case, the recording medium support section 1
It is preferable that the tip of the 0 is tapered so that the center hole of the disk-shaped recording medium can be easily fitted into the tip. The disk-shaped recording medium is now automatically loaded. Further, when only the above-mentioned rack plate 4 moves, the pin 8b of the chucking member holding member 8 is moved to the cam plate 1 of the rack plate 4.
2ab and is guided by the inclined portion of the cam plate 12b, the entire chucking member holding member 8 is moved downward to the state 8' shown by the two-dot chain line in FIG. The member 9 descends toward the recording medium support section 10 and clamps the disk-shaped recording medium therebetween. That is,
The disk-shaped recording medium is chucked and is firmly attached to withstand high-speed rotation.

Note that the recording medium support portion 1 of the disk-shaped recording medium
The attachment/detachment operation from 0 is performed by an operation opposite to the attachment operation. First, by rotating the pinion gear 5 in the opposite direction to the direction in which it was installed, the rack plate 4 is moved within the range allowed by the elongated hole 2c in the direction opposite to the direction in which it was installed. As a result, the tracking member holding member 8 is moved upward, and the tracking by the tracking member 9 is released, and at the same time, the position regulating member 6 is moved upward, and the disk-shaped recording medium is separated from the recording medium support 10 and positioned. It is held by the regulating part 6a.
After the position regulating member 6 is in the storage position in this manner, the rack plate 4 is subsequently driven by the pinion gear 5, so that the sliding member 2 is separated from the recording medium support section 10. It is slid back to the initial state shown in FIG.

According to the above-mentioned automatic loading device according to the present invention, it is possible to load a disk-shaped recording medium by simply placing it directly and moving it.
Since movement in two mutually orthogonal directions is reliably performed by a single drive system, the structure can be simplified and the price can be reduced. Furthermore, since the position of the disk-shaped recording medium relative to the recording medium support part can be mechanically fixed during loading, once this is adjusted correctly, accurate automatic loading is possible at all times, which is especially necessary when the recording track pitch on the medium is small. In addition, since positional regulation is performed using the outer periphery of the disk-shaped recording medium, there is no risk of damaging or contaminating the recording surface. Furthermore, since it can be installed from the side of the recording medium support part, there is no need to create a large space above the recording medium support part for installation, making the player etc. to which this device is applied compact and also excellent in design. It can be done.

The shapes of the sliding member, rack plate, position regulating member, chucking member, chucking member holding member, etc. in the examples used in the above description of the present invention are not limited to these, and may be variously shaped within the scope of their functions. It is clear that it can take the form of

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention applied to a disc player, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is an example of one of the main components of the present invention. FIG. 4 is a perspective view showing the first
A side view of an embodiment of the invention shown in FIG.
The figure is a side view of one of the components used in the embodiment of the invention also shown in FIG. In the figure, 2 is a sliding member, 4 is a rack plate built into the sliding member 2, 5 is a pinion gear, 6 is a position regulating member, 6a is a position regulating part of the position regulating member 6, and 8 is a chucking member. 9 is a holding member, 9 is a chucking member, 10 is a recording medium support portion, 11 is a motor, and 13 is a stopper.

Claims (1)

[Scope of Claims] 1. A player arranged to be movable between a pull-out position where it is pulled out from the player body and a storage position close to the recording medium support portion inside the player body so as to enable loading of a disc-shaped recording medium. a position regulating member that engages with a disc-shaped recording medium to regulate its position with respect to the disc-shaped recording medium; a sliding member that is slidable to selectively move the sliding member; a movement regulating member that regulates the range of movement of the position regulating member of the sliding member in a direction in which the position regulating member is moved from the drawn-out position to the storage position; a chucking mechanism comprising a chucking member disposed above the recording medium support portion and a chucking member holding member that holds the chuck and is movable up and down; and a position regulating member built in the sliding member. and engages with the chucking member holding member and is driven by the driving means to cause the sliding member to slide to move the position regulating member from the drawn-out position to the stored position or vice versa. Also, with the sliding member being regulated by the movement regulating member, the position regulating member placed at the storage position is moved up and down, and the recording of the disk-shaped recording medium is caused to be caused by the position regulating member. The recording medium is placed on and removed from the recording medium support, and the chucking member holding member is moved up and down to place the disc-shaped recording medium on the chucking member holding member and the recording medium support. An automatic disk-shaped recording medium loading device comprising: a movable member that can be brought into a chucking state in which it is clamped and a state in which it is released from the chucking state.