JPH0222852Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention is mainly a loading device for a disc player such as a laser disc. Specifically, the invention is a loading device for a disc player such as a laser disc. The present invention relates to a disc loading device for a player, which is equipped with a mechanism that stops the drive sliding movement of the disc tray when it slides to a set position within the disc tray, and locks the disc tray at the stopped position.

<Prior Art> As shown in FIG. 4, the configuration of this type of loading device that has been generally adopted in the past is such that the disk tray 02 is moved in the sliding direction outward of the player body 01 via a spring 09. The disk tray 0
A stopper is configured such that the disc tray 2 can be freely slid in and out of the player body 01, and when the disc tray 02 slides to a set position in the player body 01, it comes into contact with the disc tray 02 and forcibly stops the sliding movement. 04 is provided, and a gear 012 is provided to drive the rack 010 independently through the drive gear 011 after the disk tray 02 comes into contact with the stopper 04.
The disk tray 02 is engaged and locked by the downward movement of the tracking arm 013 which is interlocked through the group.

<Problems to be Solved by the Invention> However, in the conventional device having the above configuration, while the disk tray 02 is being driven and slid, the disk tray 02 comes into contact with the stopper 04 and is forced to slide. If you accidentally apply excessive force to the disk tray 02 from the outside while it is stopped and only the rack 010 is moving independently, the disk tray 02 and the rack 010 will be damaged.
As a result, an unexpected time lag occurs between the timing of the forced stop of the disk tray 02 and the timing of the downward movement of the chucking arm 013 via the group of interlocking gears 012, resulting in a loading lock operation. There was a drawback that the process was not carried out as planned, which could easily cause problems such as damage to disks and components, and malfunctions. In particular, if you realize that you are loading the wrong disk and pull the disk tray 02 toward the unloading side with a force greater than the biasing force of the spring 09 during loading, the rack 01
There was a drawback that the gear 012 and the gear 012 could become disengaged and become completely inoperable.

In view of these circumstances, the present invention has been developed for a player that can perform the loading lock as expected without causing problems such as abnormal operation, damage to components, or malfunctions even if force is unexpectedly applied from the outside during loading. The object of the present invention is to provide a disc loading device.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the player disc loading device according to the present invention has a disc tray 2 that is supported so as to be slidable in and out of the player body 1 by a drive wire 3. A stopper is configured such that it can be driven and slid freely by being engaged with and connected to the disc tray 2, and when the disc tray 2 slides to a set position in the player body 1, it comes into contact with the disc tray 2 and forcibly stops the sliding movement of the disc tray 2. 4, and a forced rotating body 5 that is forcibly rotated by a certain amount in conjunction with the contact with the disk tray 2 at a position slightly above the position in the sliding direction of the contact position of the disk tray 2 with the stopper 4. The player is characterized by a movable lock piece 6 that changes its posture in conjunction with the rotation of the forced rotating body 5 to restrict the sliding movement of the disc tray 2 outward from the player body 1. It is something that you have.

<Operation> According to the disc loading device for a player according to the present invention having the above-mentioned characteristic configuration,
By using the drive wire 3 as a driving slide means for the disc tray 2 into the player body 1, a forced stop stage can be achieved during the movement of the disc tray 2 in the loading direction or when it comes into contact with the stopper 4. In this case, even if any external force is applied to the disk tray 2, the wire 3 only slips between the wire 3 and the circumferential surface of the pulley around which it is wound, and the external force does not act as an overload on components such as gears. . Once the disk tray 2 has moved to the position where it comes into contact with the stopper 4, the forced rotating body 5 linked thereto
In conjunction with the forced rotation of the movable lock piece 6, the position of the movable lock piece 6 changes to the locking position, and the sliding movement of the disc tray 2 toward the outside of the player body 1, that is, in the unloading direction, is reliably restricted. The stop at the set position 2 is reliably performed, and subsequent operations are also performed normally and reliably.

<Effects of the invention> Therefore, according to the invention, (1) Even if the operation is performed somewhat roughly or carelessly, troubles such as damage to components and parts for loading gears, etc. will not occur; There is almost no occurrence, and the durability of the device can be significantly improved.

(2) Moreover, the loading lock can be performed reliably as expected, and the player performance can be maintained in good condition.

<Examples> Examples of the present invention will be described below in detail based on the drawings.

In FIGS. 1 to 3, reference numeral 2 denotes a disk tray supported so as to be able to slide in and out of the player body 1, and is suspended between pulleys 9 and 9' that are pivoted on the side of the player body 1. is fixedly connected to one point of the wire 3 via a pin 10,
and the one pulley 9 is a super gear 11,
8 and a worm 12, and is configured to be freely driven and slidable by driving movement of the wire 3 in accordance with forward or reverse rotation of the electric motor 13.
A pin 7 is fixedly protruded upward near the inner edge 2A of the disc tray 2 relative to the player body 1. Reference numeral 4 denotes a stopper fixed to the inner part of the disc tray storage space of the player body 1, and when the disc tray 2 slides to a set position in the player body 1,
It comes into contact with the inner edge 2A of the disk tray 2 and forcibly stops its sliding movement. 5
is a sector gear which is an example of a forced rotating body that is pivotally supported on the player body 1 at a position slightly above the position of the stopper 4 in the insertion and sliding direction of the disc tray 2, and is a sector gear that is fixedly protruding from the disc tray 2. A driven pawl portion 5A that can move forward and backward with respect to the movement path of the pin 7 is integrally provided, and the pawl portion 5A is connected to the movement path of the pin 7 slightly before the inner edge 2A of the disk tray 2 comes into contact with the stopper 4. Part 5
When A contacts the pin 7 and is pressed and swung, the tooth portion 5B meshes with the super gear 8 and is forcibly rotated by a certain amount until it contacts the limit switch 14 for stopping the motor. It is.
6 is positioned in contact with the back side of the pin 7 at the time when the disc tray 2 contacts the stopper 4 and is forcibly stopped, so as to restrict the sliding movement of the disc tray 2 to the outside of the player body 1. It is a movable lock piece that changes its position, and can be switched freely between a locked position and an unlocked position via a pin 15 and a long hole 16, and is automatically reversible in conjunction with the forced rotation of the sector gear 5. It is linked to the sector gear 5 so that the attitude can be changed to . Reference numeral 17 denotes a disc chucking arm, and 18 a cam plate for lowering the disc, both of which are operated via a link mechanism 19 in conjunction with the rotation of the sector gear 5 to enable automatic performance. However, since its specific structure is well known, the explanation will be omitted.

Next, the loading operation will be explained.

When the electric motor 13 is started to rotate forward with the display tray 2 protruding outward from the player body 1, the wire 3 is driven and moved in the direction of arrow A.
The disk tray 2 is pulled and slid toward the inside of the player body 1. At this time, the first
As shown in the figure, the sector gear 5 is stopped with its claw portion 5A protruding into the movement path of the pin 7, and the movable lock piece 6 is in the unlocked position. When the disc tray 2 slides close to the set position in the player body 1, the pin 7 contacts and presses the claw portion 5A, as shown in FIG. Tooth part 5
B is meshed and interlocked with gear 8. Then, this sector gear 5 is connected to the electric motor 1 via the gear 8.
At this stage, the inner edge 2A of the disk tray 2 comes into contact with the stopper 4, and the sliding movement of the disk tray 2 is forcibly stopped, and the wire 3 is forced to rotate by a certain amount on the circumferential surface of the pulley 9. There is a slip between. In conjunction with the forced rotation of the sector gear 5 by a certain amount, the movable lock piece 6 automatically switches to the locked position and comes into contact with the back side of the pin 7, as shown in FIG. Even if an unexpected external force is applied in the drawing direction,
This sliding movement of the disk tray 2 is reliably regulated, and a reliable loading lock state as expected is achieved. At the same time, the link mechanism 19 causes the tracking arm 17 and the disc lowering cam plate 18 to operate in a predetermined manner, thereby starting automatic performance.

Note that, although a sector gear is most suitable as the forcible rotating body 5, any other rotating body may be used.

[Brief explanation of the drawing]

1 to 3 are plan views of the main parts of the present invention, and FIG. 4 is a plan view of the main parts of the conventional example. 1... Player body, 2... Disc tray, 3... Drive wire, 4... Stopper, 5
... Forced rotating body, 6... Movable lock piece, 7... Pin, 8... Drive gear.

Claims (1)

[Claims for Utility Model Registration] A disk tray 2 supported so as to be slidable in and out of the player body 1 is latched and connected to a drive wire 3 so as to be freely driven and slidable,
When the disc tray 2 slides to a set position in the player body 1, a stopper 4 is provided which comes into contact with the disc tray 2 and forcibly stops the sliding movement of the disc tray 2. A forced rotating body 5 is provided which is forcibly rotated by a certain amount in conjunction with the contact with the disk tray 2 at a position slightly above the abutting position in the sliding direction. A disc loading device for a player, characterized in that a movable locking piece 6 is provided which changes its posture to restrict the sliding movement of the disc tray 2 to the outside of the player body 1. The forced rotation body 5 is connected to the disk tray 2.
The disc loading device for a player according to claim 1, which is constituted by a sector gear that engages and interlocks with a drive gear 8 in response to the pressing force of a fixedly protruding pin 7.