JPS5880165A - Record player - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates generally to disc players, and more particularly to container video disc players, by way of example.

In some devices, video and audio signals are stored in the form of physical undulations between a record-engaging stylus and the conductive material of the record. The physical undulations of the record under the tip of the accumulator are detected as capacitance changes. This capacitance change is converted into an electrical signal compatible with common type television receivers. A capacitive pickup device is disclosed in U.S. Pat. No. 3,842,194.

Generally, video disc records are housed in a flat protective container that includes an outer box and a record holding frame. The holding frame has an opening into which a record is received to form a record/holding frame structure. When loading a record, the entire container is manually guided through a pair of insertion slots provided in the player, and a record extraction mechanism installed in the player extracts the record/holding frame structure from the container, and one set of receivers is inserted into the pads. Keep it in your player. When a record is to be transferred to a turntable 9 for reproduction, a pressing member provided on the player holds the holding frame at a proper position when the record is discarded by the turntable 9. During playback, the turn tape holder rotates the record at a predetermined speed (for example, 450 revolutions per minute), and at the same time the picker Z accumulator moves radially across the record. When extracting a record, the record is returned to the receiver pad by lowering the turntable relative to the receiver pad, and the record/holding frame structure is re-formed. Then, by reinserting the empty outer box into the player, the record/holding frame structure is recovered into the outer box.

In this device, if an empty outer box is inserted into the player at a steep angle with respect to the container guide rail M, there may be a problem in recovering the record/holding frame structure held within the player. In other words, if the insertion angle of the outer box is too large, there is a possibility that the outer box will be pushed above or below the record, and only the holding frame without the record will be thrown away. In this invention, a pair of notches are provided in the guide rail near the container insertion opening to prevent the container from being inserted if the insertion angle is too large.
Please refer to the attached drawing! This invention will be explained in detail.

FIG. 1 shows a video disc player 20 with a container guide rail according to the invention. The six-function lever 22 on the front side of the player is tilted to one of three positions, ie, "off", "playback", and "attachment/detachment". Move the function lever 22 to "
The container insertion door closes the container insertion opening 24 when it is turned to the "off" and "play" positions. When the function lever 22 is moved to the ``attach/detach'' position, the container insertion door opens, and the entire video disc container 26 as shown in FIG. 2 is inserted into the player to load the stored records. Push button 28 is used to place the player in a "pause" mode, allowing the viewer to interrupt the program for a desired period of time without losing program content. In the "rest" mode, the pick-up device is raised and its lateral movement is inhibited.

A set of push buttons 30, 32, 34, 36 on the instrument panel 38
The player is arranged in four "exploration" modes, namely fast forward (forward/reverse) and visual exploration (forward/reverse), so that the viewer can quickly retrieve the exact part of a pre-recorded program. ). In fast forwarding, the pickup device rises and rapidly moves laterally. In visual exploration, the pickup device moves rapidly laterally while touching the record. The digital light emitting diode display 40 displays playback time and other functions such as "pause", "attachment/detachment", "end of playback", etc. 1
The paired indicator light 42 indicates the playback side of the record, for example, the "first side".
and "second page". A removable door 44 is provided on the lid of the player, so that a needle storage cartridge 46 as shown in FIG. 3 can be replaced as necessary.

As shown in FIG. 2, the video disc container 26 has an outer box 5
0 and a record holding frame 52. The outer box 50 has an end opening 54 leading to a space 56 for storing the record/holding frame structure.
has. The holding frame 52 includes a portion 58 that serves as a lid;
Portion 60 having a circular hole 62 for receiving a perforated record 64
and an iJ flexible finger 66 integrally molded.
．． 68. The fingers 66, 6 of this holding frame each have protrusions 70, 72, which correspond to the recesses 74, 72 provided in the outer box 50 when the holding frame p2 is fully inserted into the outer box. to fit into. The holding frame 52 also has a notch 78 for selectively receiving a pair of restraining frame grasping members attached to the player and fixing the holding frame as described later.
Equipped with 80 warehouses. As shown in FIG. 5, lip-shaped pads 82 and 84 are provided on the inner surface of the outer box 50 along the end opening 54 to form a sealing part that prevents dust from entering the record storage space 56. .

The operation of the record loading/unloading mechanism installed inside the player is
The diagram will be explained. Each side rail 100, 102 has a bracket 10 for fixing it to the player's enclosure.
1,103. To insert a record, the solid container 26 is inserted through the insertion opening 24 along the path defined by the side rails 100, 102. When the container reaches the fully inserted position of the player, the engagement members 104, 106
enters the outer box 50 and deflects the fingers 66, -68 of the holding frame to release the holding frame 52 from the outer box. The holding frame grasping members 10 and 110 are supported by the player, and when the container reaches the fully inserted position of the player, they fit into the notches 78.8o provided in the holding frame 52, thereby fixing the holding frame to the player. The holding frame 52 is released from the outer box 50 by the action of the engaging members 104 and 106, and 1. Holding frame grasping member 108,
Since the player is locked by the action of 110, when the outer box is subsequently pulled out, the record/holding frame structure is left inside the player. This residual record holding frame structure has a set of retractable supports supported by pads 112, 114, 116, 118° 120. Holding frame grasping member 10B, 1
holding arm 122 supporting 10 and engaging member 104,106
A pair of springs (not shown) disposed between the housing and the housing bias the engaging member downward when the outer box is pulled out.

To transfer the remaining records to the turntape 124, move the function lever 22 to the 1 playback position, raise the turntable, and turn the turntable motor 1z6t-start.
let Turn Q, B/L/ While the 124 rises and throws away the record, a set of pressing members 128°130.1
32 holds the holding frame 52 and the pad 112.114°116
．． A pick-up accumulator 140, which is pressed against the cartridge 46 and held in that position, has one end attached to a flexible rubber joint 144' and the other end of the accumulator arm 142 suspended within the cartridge 46. is located within the gap 146 provided in the needle storage arm holder 148, and the lid of the holder (not shown)
is closed.

A stator arm elevator 150 is provided within the pedestal 14B, and is configured to selectively lower the pickup stylus 140 to engage with a record through an opening 152 provided in the bottom wall of the pedestal. During playback, the pedestal 148 synchronizes with the radially inward movement of the pick-up needle 1400 and moves from the starting position behind the player to the front of the player through a guide path 154.15 arranged parallel to the side wall 100.102 of the container.
Move 6. The gantry drive mechanism 158 includes a servo-controlled electric motor 160 that drives a pinion 162 via a gear train 164.
The guide path 154,1 is engaged with a rack 166 fixed to the lower side of the pedestal 148 to keep the pickup needle 140 centered on the pedestal 46.
56. During playback, changes in capacitance between the electrodes supported by the accumulator stylus 140 and the conductive material of the record 64 are picked up and detected by the circuit 168 as the disk surface below the tip of the accumulator stylus moves up and down, and the information stored in the record is detected. Play. The reproduced signal is processed by a signal processing circuit 1'70 and reconfigured into a television signal containing video and audio information to be supplied to a television receiver.

After playing the record, press pad 112.114.116.
To return to 11B and 120, press the function lever 22 to "attach/detach"
position and lower the turntable 124 to a height below the pad. When the turntable 124 is lowered, the record is placed on the pads 112, 114, 116, 11.
8. 120 and fit into the opening 62 of the holding frame 52 to reconfigure the record/holding frame structure. The turntape electric motor 126 is stopped when the function lever 22 is moved to the "attach/detach" position. The receiver is pad 112, 114, 116°11
In the raised position 8.120, the record/holding frame structure aligns with the center line of the side rails 100.102 of the container.

To recover the record/holding frame structure, as shown in FIG. 4, the empty outer box 50 is inserted straight into the player through the container insertion opening 24 approximately along the side rails 100, 102.

When inserting the outer box 50 into the player, the front edge of the outer box 50 is
48 and push it back to the stop that defines the starting position, and further biased retaining members 104 and 106
to bias it further downward. This downward biasing of the engaging members 104 and 106 causes the holding frame grasping member 1 to
08 and 110 are displaced downward to release the holding frame 52 from the player. When the outer box 50 is completely inserted into the player,
The protrusions 70 and 72 of the fingers 66 and 68 of the holding frame are connected to the recessed holes 74.
．． 76 to fix the holding frame 52 to the outer box. Therefore, when the container is pulled out, the record/holding frame structure is pulled out from the player.

As mentioned above, if the empty outer box 50 is not properly aligned with the container guide rails 100 and 102 when inserted into the player,
This causes inconvenience in recovering the remaining records and holding frame structure. That is, when the empty outer box 5o is inserted at an angle as shown in FIG.
may be recovered. Furthermore, if the outer box 50 is inserted into the player at an angle, the holding frame 52 may get caught on one side of the lip-like pads 82, 84, damaging the sealing portion. For example, the outer box 50 and the guide rail 100.102
If the angle between the Container guide rail 100 improved according to the present invention.
102 solves this problem. As shown in FIGS. 4 and 6, a container guide rail 100 near the insertion port 24
,．． Two sets of notches 180, 1B2.18 opposite to 102
4.186 is provided. This notch has an insertion angle of 6
As shown in the figure, insertion of the outer box 50 is prevented in extreme cases, reducing the possibility of problems with the record extraction mechanism.

The second set of notches 1B4.186 is the first set of notches 180.1
It is provided as an auxiliary to 82. If the user misses the first set of notches 180, 182 or changes the inserting direction of the outer box after partially inserting the outer box into the player, the second set will be inserted when the insertion angle of the outer box is extreme. Notch 1B4, 18
6 prevents insertion of the outer box.

As an example, the appropriate dimensions are shown below.

1. Container width: 325.12. .

2. Container length: 355.6 scale 3. Container thickness = 6.35rNn 4. Container guide rail groove height: 7-239mm5. 1st set notch width = 2.54 points 6. Width of two sets of notches = 3.81++ll117, height of notches = 1.524+ll118, distance between the leading edge of the guide rail and the leading edge of the first set of notches = 4. '75 votes＼ 9.2 sets of notch spacing 2.54m

[Brief explanation of drawings]

FIG. 1 is a perspective view of a video disc player equipped with a container guide rail according to the invention, FIG. 2 is a plan view of a video disc container suitable for the player of FIG. 1 in the practice of the invention, and FIG. A plan view of the player of FIG. 1 with the lid removed to show the container guide rail in detail; FIG. 4 is a schematic diagram of an improved container guide rail according to the present invention; and FIG. 5 is an improved FIG. 6 is a partial schematic view showing the operation of the container guide rail of the present invention. 20...7'V-, -Y, 24...insertion port,
50...Record container 1,100.102...-Guide rail, 180%184...Notch.

Claims (1)

[Claims] (1) A record player for playing back information stored in advance from a disk record housed in a planar protection container, wherein the container has a pair of substantially two-dimensional protection from an insertion opening provided in the record player. Records stored therein are loaded into the player by being inserted along a path formed by guide rails, and at least one of the guide rails is inserted into the container insertion path in the vicinity of the container insertion opening. A record player having a pair of notches on both sides of the record player.