JPS60127564A - Disc player - Google Patents

Abstract

PURPOSE:To prevent a disc supporting body from falling and inclining at a projection time by constituting the disc supporting body for loading with a disc base, which is provided on a device body so that it can be projected and drawn back freely, and a disc plate moving on this disc base. CONSTITUTION:A disc supporting body 6 consists of a disc base 21, which is provided in the front of the device body so that it can be projected and drawn back freely, and a disc plate 22 which is provided on the disc base 21 freely movably in the longitudinal direction and supports a half or more of the rear side in the longitudinal direction of a disc at least. The disc base 21 is projected to the front of the device body, and the disc plate 22 is moved forward to the front on the base, and a half or more of the rear side in the longitudinal direction of the disc is supported at least on the disc plate in this state, and the disc base 21 is drawn back into the device body. Simultaneously, the disc plate 22 is moved backward to the rear part on the disc base 21 to insert the disc into the device body. Thus, the projection length of the disc base is shortened by a moving stroke, and the length of the disc base supported in cantilever is extended.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a disc player, and in particular, a disc is supported on a disc support protruding like a drawer from the front of a main body, and the disc support is attached to the main body. This relates to a device in which a disc is played back inside the main body by inserting a Dinuku into the main body.

[Technical background of the invention and its problems]

In recent years, disk players that use a 70-bit loading system have been developed, similar to cassette tape players and the like. In this 70-inch loading system, there are two types: one in which the disc is mounted horizontally and one in which the disc is mounted vertically.In the case of horizontal front loading, the disc support is retracted from the front of the main unit in the form of a drawer. The Dinuk is supported on a protruding disc support, the disc support is recessed into the main body, the disc is inserted into the main body, and the disc is played within the main body.

By the way, in the case of this horizontal front-loading type disc player, the disc support protrudes like a drawer from the front of the main body, and the rear end of the disc support is supported in a cantilevered manner within the main body, so the disc The length of the support in the front-rear direction is at least the length of the portion of the disk that can be supported by the cantilevered diameter element. Therefore, the depth of the main body of the Dinuk player is also greater than this, but in a player that plays normal analog record discs, the maximum diameter of the LP disc is 30 -, so the depth of the player is There is a problem in that the dimensions become larger and the f-lance with other audio equipment such as amplifiers and tuners deteriorates, so the protruding dimensions of the disc support and the dimensions of the cantilevered part of the disc support This has resulted in the disk not being easily supported by the disk support, or the disk support being tilted downward when ejected.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned problems, and it is possible to prevent the disk support from tilting downward when protruding in a horizontal front-loading type disk player without increasing the depth of the main body.
The purpose of this is to facilitate the support of a disk on a disk support.

[Summary of the invention]

In the present invention, a disc is supported on a Dinuk support that protrudes like a drawer from the front of the main body, the disc support is recessed into the main body, the disc is inserted into the main body, and the disc is played within the main body. In the disc player, the Dinuku support body includes a disc space provided on the front part of the main body so as to be freely retractable, and a disc space provided on the disc space so as to be movable in the front and back direction, and a space on the rear side of the disc in the front and back direction. and a disc plate that supports at least half of the main body, and the disc space is protruded to the front of the main body, and the front and back of the disc are placed on the Dinuk grate in a state where the disc space is advanced to the front part of the main body. Supporting at least half of the rear side in the direction,
The disc plate is inserted into the main body by immersing the disc plate into the main body, and the disc plate is retreated to the rear part above the disc space, and the disc is inserted into the main body, and the disc plate moving stroke is 2 minutes. Furthermore, the protruding length of the disc space can be shortened, and the length of the cantilevered portion of the disc space can be increased.

[Embodiments of the invention]

A disc player of the present invention will be explained in detail based on an embodiment shown in the drawings.

FIGS. 1 and 2 show a Dinuku player for playing a normal analog record disc (D), and the explanation will be centered on these figures.

In the figure, (1) is a case-like main body, and this main body (]
) is provided with an operation display section (2) at the upper front part, and a horizontally elongated opening (3) at the lower front part. A main chassis (4) is provided at the lower part of the main body (1), and a pair of rails (5) on both sides are provided on the main chassis (4).
) are provided facing the front and back direction, and this one
A Dinuk support (6) is supported by the pair of rails (5) so as to be movable in the front and rear direction, and the Dinuk support (6) extends and retracts like a drawer from the opening (3) of the main body (1). It has become. An elevating body (7) for elevating and lowering a lower chuck body (C) to be described later is supported in a cantilever manner on a substantially central portion of the main chassis (4) via a shaft (8). The tip of the body (7) is formed to be able to move up and down. In addition, a pair of rails (9) on both sides are provided on the negative side of the main shaft (4), and a pink-up board rail is provided on this pair of rails (9) in the front-rear direction. A pair of pink amplifier cartridges Qυ0→ are movably supported on the pink-up board 0Q and are supported via arms u4θ·1) so as to be offset in the front-rear direction and the vertical direction. Furthermore, the above main body (1
An inverted U-shaped sub-chassis 0υ supporting an upper chuck body (to be described later) within ) is provided so as to straddle between both sides of the main chassis (4).

As shown in FIGS. 3 and 4, the disk support (6) is composed of a disk space 01) and a disk grate), and the disk space (C) is pivotally supported at the bottom on both sides. By engaging a plurality of rollers with the above-mentioned pair of rails (5) having a U-shaped cross section, the Ainuk grate (C) is supported horizontally and movably only in the front-back direction. The disc space 01) is created by engaging a plurality of rollers (c) pivotally supported at the lower portions of both sides with a pair of long grooves (c) on both sides formed in the front-rear direction on the disc space ev. It is supported in the soil between the front end edge (21α) and the rear end edge (21Q) of the disc space Qυ so as to be movable in the front and rear direction.

Therefore, when the disk plate (C) is moved forward (in the F direction) from the state shown in FIGS. 3 and 4, that is, the state in which the disk support (6) is recessed into the main body (1), the disk plate (C) is moved forward (direction F). 4 moves on the disc space Q◇ in the main body (1), and then moves on the Dinuk space e
After contacting the front end edge (21α) of 0, the disc space Q]) moves to the rail (5)? 1) moves forward with the disc grate (c) and opens the opening (1) of the main body (1).
3), and when the disc grade Q'4 is moved backward (in the B direction) from the state f i, the disc plate ← η becomes the disc pace (
c) After moving above and then contacting the rear end edge (214) of the disc space e1, the disc space 0 moves backward together with the disc grate along the rail (5) and the main body. It is adapted to be inserted into the opening (3) of (1).

In addition, if the movement stroke of the above-mentioned disk grate (goods) is 32 crn, and the movable stroke of the disk plate 4 on the above-mentioned Dinuku base eη is 10 cI11, then the movement stroke of the disk pace (c) accompanying the movement of the disk grate (c), that is, the disk pace. The protrusion length of 0υ is 32-10=22cFn.

A lower chuck body (C) is provided at the center of the front end of the disk plate of the disk support (6). As shown in Figs. 3, 4, and 6, this lower chuck body (c) has a spindle (to) installed in the center of the chuck grate), and a spindle (to) on this spindle (g). The EP adapter 0η is fitted in a vertically movable manner and is provided on the upper surface of the chuck plate (c) so that the spindle 01) always protrudes from the upper surface of the chuck plate, and the EP adapter 0p is Normally, the claw (31α) of the spring 0 rises to the position where it locks the chuck plate (A) K and protrudes from the upper surface of the chuck plate QI, and when the weight of the disk (D) is applied, the chuck plate It is designed to descend into the recess (29a) of the feather.

The lower chuck body Q4 is loosely fitted into the hole 0→ and the recess O→ formed in the disk grating e, and is provided so as to be freely movable in the horizontal and vertical directions, and is provided with a retaining ring 0f. ) from below the disc plate angle -) Fit into ring 0f)
The upward removal is prevented by locking the claw (37α) on the chuck plate (I). Note that the lower chuck body (c) normally descends due to its own weight, so that the top surface of the chuck plate (c) and the top surface of the disk plate (c) are substantially flush with each other.

In addition, the disk space Qυ of the disk support (6)
A hole 01 is formed in the central part of the disc base Qv, that is, a part that moves rearward and faces the lower chuck body (c) of the nine disc plate ) and the liquid are formed with a recess 0υ through which the retaining ring 0η passes.

Further, the disk space Qρ of the disk support (6)
And at the rear of the disc plate (foundation) there is a hole 0 for the big amplifier cartridge 0 → on the rear lower side to pass through.
4 (c) is formed.

Furthermore, each of the above-mentioned big up cars) 1J and α9 (2
) is provided with a brush θilH for cleaning.

If the protrusion length of the disc support (6) is 22cn1 as mentioned above, the protrusion length of the disc plate (A) is equal to the front edge (2) of the disc space (C).
Even if you subtract the width of 1α), it is still 20>strong, 30cm.
On the outside of the main body (1), approximately 24 mm on the rear side in the front-rear direction of the L P disk (D) is placed on the disk plate),
If you support it, you can do it.

Further, a moving body for moving the disc support (6) in and out is provided on the main chassis (4). As shown in FIG. 5 and 91z1, this movable body 6 is engaged in a long hole formed in the other side of the main chassis (4) in the front-back direction so as to be movable in the front-back direction. ing.

When the movable body 6 is moved, the disk support body (6) moves in and out.

That is, as shown in FIG. 9, a pair of front and rear movable pulleys □□□6η are pivotally supported on the upper part of the moving body 62, and are located in front of the elongated hole plate and mounted on the main chassis (4). Two fixed pulleys 05151 are pivotally supported as shown in FIG. As shown in the figure, a tension pulley 1 is mounted on the main chassis (4), which is pivotally supported, and is located on the side of the fixed pulley.
31 is movably supported by an adjustment screw, and
A fixed pulley wheel is pivotally supported on the - side front end and - side ridge end of the main chassis (4), respectively, and a fixed pulley is pivotally supported on approximately the center of the main chassis (4). ,
Furthermore, a protrusion located in front of the elongated hole is provided to protrude on the main chassis (4), and one end is connected to the main chassis (4) by screw II at the front side of the elongated hole (63). The interlocking wire σO fixed to 59)
After being hung on the movable pulley 57) on the rear side of the upper part of the moving body +521, it is then sequentially hung on the fixed pulley (ill and tension pulley lff, 7831), and then again on the fixed pulley. The movable pulley 6DK on the rear side of the upper part of the six moving bodies is again hung on the 1F, and then this interlocking line σ0 is sequentially applied to each fixed pulley Ill tlili)
151 IT) - and then the mobile object (IT)
The interlocking wire σ is then hung on the protrusion again, and the other end is fixed to the main chassis (4) with a screw συ. , this drive line σ0 is the fixed pulley 1!91G on the - side.
and between the fixed pulleys 5113 on the other side, respectively,
The fixing tool (22cL) (22+
) is fixed. (As shown in FIGS. 2 and 3) Therefore, as shown in FIG. 13, when moving body I5 is moved forward (direction F), movable pulley 6' on the rear side of the upper part of moving body 621) By the above disc support (6)
fixing tool (22α) (224) for the disc plate (c)
) is pulled toward the fixed pulley at the rear via the interlocking line σO), the Dinuk support body (6) moves rearward (direction B), and conversely, the moving body 6 is pulled backward ( When moving in the direction B), the movable pulley on the front side of the upper part of the moving body ci4 causes the disk plate of the disk support body (6) to move).
The fixed part (22αX22+) of the forward fixed pulley l! The disk support (6) moves forward (in the F direction) as it is pulled toward II.

Furthermore, by using the movable pulley (67), the movement stroke of the disk plate Q→ of the Dinuk support body (6) is twice the movement stroke of the movable body 6.
Assuming that the movement stroke of No. 2 is 16 cm, the movement stroke of disk grate (C) can be made 32 subs as described above.

Furthermore, the interlocking line συ can be practically divided into two systems: the part shown by the solid line from the screw to the tension pulley, and the part shown by the dashed-dotted line from the tension pulley 131 to the screw συ. Although it is possible to provide these two systems separately, that is, to use two interlocking wires, if the two interlocking wires are integrated into one as in this example, The tension in the part shown by the dashed line can always be made uniform, and therefore the force for moving both sides of the disc support (6) on the disc plate (on the disc plate) and on the disc plate is also uniform. You can move around smoothly, and there will be no jerky bumps. - As shown in Figures 5 and 6, the upper part of the tip of the elevating body 7) is equipped with a thrust force that lifts the lower chuck body (c) of the Dinuk support body (6) sunk into the body (1). 'IMh receiver (70) is provided opposite to the lower chuck body 7 binder, and below that, the cam plate σ field is connected to the shaft (70).
It is pivoted to the lower part of the elevating body (7) via e, and this cam plate σ
The outermost tip is engaged with the tip of the elevating body (7) so as to be able to move up and down within a predetermined range, and the cam plate 17! A spring 67) is installed between the tip of the elevating body (7) and the tip of the elevating body (7) to separate them from each other, and when the cam plates σ are raised, the elevating body (7) or rise, and the elevating body (7
) is attached to lift the lower chuck body (c) through the 7-bindle hook.

Further, an elevating moving body (good) for elevating and lowering the elevating body (7) is provided in the main chassis (4). As shown in FIGS. 5, 6, and 12, this movable body is located at the lower blade of the elevating body (7) (7ω) and is attached to the main chassis (4) in an approximately longitudinal direction. The cam plate (151
The rollers (c) for the cam plate σ4 are pivotally supported on the upper part of the cam plate σ4.

Therefore, move the moving body forward (in the F direction),
The roller (C) engages with the cam plate ff51 of the elevating body (7), lifts the cam plate 6, raises the elevating body (7), raises the lower chuck body, and then reverses the movement. When the movable body (7) is moved backward (direction B), the elevating body (7) descends due to its own weight, and the lower chuck body (C) also descends due to its own weight.

As shown in FIGS. 4 and 6, an upper chuck body (G) is provided above the lower chuck body (C) of the disk support (6) recessed into the main body (1).

This upper chuck body groove) is connected to the forward/reverse drive rotation motor l81 installed at the lower center of the sub-chassis α valley.
) is attached to the rotor of the
It is designed to rotate in both directions at 3 RPM and 45 RPM, and the lower chuck body (
A concave portion (c) into which the spindle wheel and the EP adapter 0 of (c) fit is formed, and the disc (D) is held between it and the lower chuck body (c) in the raised state.

As shown in FIGS. 7 and 8, the arms 03α→ to which each of the above-mentioned pickup carts 0) and 0) are attached are each supported by the above-mentioned pickup cart 01 via a gimbal mechanism (9J (93)). , each pinguatsunokartrick 0υ0 is able to swing freely in the front and back direction and the vertical direction.Then, one arm 0 is connected to the pickara f board (11!
1) A pickup cartridge (lυ is installed with the tip of the disk pointing downward) attached to the disc support ((i) located above the front part of the disk support body (i)) The radial portion in front of Dinuk (D) in the upward longitudinal direction is reproduced, and the other arm α→ plays the lower part of the rear side of the pink-up board 01, that is, the disk recessed into the main body. The pickup cartridge αa is located at the lower rear of the support body (6) and attached to the arm α It is designed to play the rear radius part.

The longitudinal deviation of both pickup cartridges (11) (l) is set to about 2° crn, and is set at 30° crn.
>In the case of LP Dinuku, both Big Agno cartridges (1η0→) When one is located at the outer periphery of the disc (D), the other is located at the inner periphery of the disc (D), that is, close to the label. (As shown in Figures 3 and 4) Each arm α3 (14) is a static balance type, and the pickup cartridge α
The levers are formed so that they come into contact with the disc CD) with a predetermined stylus pressure, but when not in use, the respective levers 4) 61
This causes the big amplifier cartridge trit 01 no θ→ to be swung in the direction away from the disk (D), that is, in the downward direction, and when in use, the solenoid (!,) 61 ( By 9'/l, the lever (!11
．． 11 (It is formed so that the action of 9i is canceled.

When the lever (!141 (!)) is in operation, the lever (94) (95) and the arm (+:
j By engaging with IJ-h, Φ is positioned at the horizontal swing center of arm 01, and
Both cartridges 0υ0→ are positioned and the longitudinal deviation is set to about 20 (7) as described above.

Although not shown, the horizontal swing of each arm (1, Jα) is detected and the pickup board 0 is
A photoelectric detection mechanism is provided to perform linear trunking of the four serve drive thumb arms α1αφ.

Further, a photoelectric detection mechanism (11α) (12α) for detecting a non-signal area on the outermost circumference of the disk (D) and a non-signal area between the signal recording areas of the disk (D) is provided at the tip of each pickup cartridge onoa. Each is provided facing in the same direction as the needle tip.

, Further, a protrusion (I
R is provided, and the protrusion 0 (G) is loosely fitted into the elongated hole (101) of the main chassis (4) so as to be movable in the longitudinal direction.

Then, a pair of front and rear movable pulleys (104, 105) are located on the lower surface side of the main chassis (4) and are located at the bottom of the movable body 62 for emitting and retracting the disk support (6) (Fig. 5). and shown in FIG. 12) are pivotally supported, and a front v;
A pair of movable pulleys (106 x 107) (Fig. 6 and 12)
A pair of movable pulleys (108) (109 in the figure) is pivotally supported on the protrusion INm of the pink-up board 0.
) (shown in FIGS. 7, 8 and 12) is pivoted.

Further, in the lower part of the main chassis (4), as shown in FIG.
) two fixed pulleys (112) (113) located in front of
However, two fixed pulleys (11
4) (115) is pivotally supported, and the elevating moving body (
A fixed pulley (1
16) is pivotally supported, and protrusions (11,70118) are provided protrudingly at positions fj4 before and after the long hole member υ, and the protrusions (2) of the soil N+2 binkara f substrate 01 move. Two fixed pulleys (11) are located in front of the long hole (101).
9) (120) is located behind the long hole (101) and 3
Two fixed slide JK (121X122) (123) are supported by the shaft.

A drive pulley (126) and a tension pulley (127) are provided on the lower front side of the main chassis (1), and the drive pulley (126) is provided on the main chassis (4) for forward and reverse drive loading. Motor (128) (
(shown in Figure 2), pulleys, belts, pulleys, worms,
The tension pulley (127) is connected to the drive pulley (126) by a spring (129) through a worm wheel, etc.
is biased in the direction away from the In addition, the above (1
The urging force of 29) can be adjusted with a screw (130).

Then, a drive line (134) whose one end is fixed to the main chassis (4) with a screw (133) at the front side of the elongated hole 61) is hung on the protrusion (117), and then It is hung on a movable pulley (106) on the front side of the lower part of the moving body for elevating, and then this drive line (134) is sequentially
After being hung on each fixed pulley (116) (112), it was hung on the movable pulley (104) on the lower front side of the moving body 6 for appearing and appearing, and then on each fixed pulley (113) (119). Above, it is hung on the movable pulley (108) in front of the protrusion (b) of the pickup board 00, then on the fixed pulley (120), and then wound around the drive pulley (126) one turn or more. , is hung around the tension pulley (127), is again wound around the drive pulley (126) one or more turns, and is further wrapped around each fixed pulley (123) (122).
the protrusion (MX) of the pick amplifier board 0I
It is hung on the movable pulley (109) on the rear side of j, and then on each of the fixed pulleys (121) (115), and the moving body for appearance and retrieval is also hung on the movable pulley (105) on the lower rear side of 2. Then, it is hung on a fixed pulley (114), and then on a movable pulley (107) on the rear side of the lower part of the lifting moving body, and then,
It is hung on the protrusion (118) and fixed to the main chassis (4) with screws (135).

Therefore, as shown in FIG. 13, the drive pulley (12
6) in the clockwise direction by the motor (128), the pickup board α is moved between its protrusion and the movable pulley (108) on the front side.
), and the moving body 6 for appearing and retracting receives a driving force directed forward (in the F direction) through a movable pulley (104) at the lower front side, and receives a driving force directed forward (direction F). Receiving a driving force in the direction of immersion into the main body (1), the elevating movable body (1) receives a driving force directed forward via a movable pulley (106) at the lower front side thereof, that is, the lower chuck via the elevating body (7). When the pickup board α1 receives a driving force in the direction of raising its posture and, conversely, drives the drive pulley (126) counterclockwise, the pickup board α1 moves the movable pulley (109) on the rear side of the protrusion (9). The moving body 154 receives a driving force toward the rear (direction B) through the movable pulley (105) at the lower part of the rear side, that is, a driving force toward the rear through the disk support (61) of the main body (1). Receives a driving force in the direction of protruding from the front part, and the moving body for elevating and lowering moves from the moving slide 1 at the lower part of the rear side.
1t (107), it receives a rearward driving force, that is, a driving force in the direction of lowering the lower chuck body (c) through the elevating body (7).

Although FIG. 13 is a diagram showing the principle of the drive system, in order to simplify the drawing, the arrangement of the moving body 154 for appearing and retracting and the moving body for raising and lowering with respect to the drive line (134) is reversed. It is.

Further, the driving force for moving the pickup substrate αq is greater than either the driving force for moving the Dinuk support body (6) and the driving force for raising/lowering the lower chuck body (c) via the elevating body (7). It is set small. By the way, does this mean that the pink-up board αQ is a precision sensor? motion(
Originally, high precision was used for the moving support members such as the rail (9) on the railings that performed linear tracking.
Since the resistance during movement is extremely small, this can be achieved without any special consideration.

As shown in Figs. 5 and 6, the elevating control lever (138) is located on the main chassis (4) at the rear of the elongated hole @υ through which the elevating moving body moves.
), and is located at the front of the long hole 6° through which the above-mentioned moving body 621 moves.
) is pivotally supported via a shaft (141) for free movement.

The elevation control lever (138) has a locking pawl (144) at the 111 part thereof, and an interlocking part (144) at the base part.
45), and is biased clockwise in FIG. 6 by a spring (not shown). Then, the above-mentioned elevating movable body - moves backward, that is, via the cam plate (7i+), to the elevating body (
7) and the lower chuck body (c) are moved in the downward direction, the locking pawl (144) engages with the engagement recess (80α) formed in the movable body to engage the movable body. stop,
Move the moving object ■ forward! The I-9 elevating body (7) and the lower chuck body (c) are prevented from moving in the upward direction. Further, the interlocking part (145) protrudes above the hole (7α) formed in the elevating body (7), and a protrusion protrudes from the lower part of the disc grate (2) of the disc support (67). (146) is formed in the Dinuk base Qη and protrudes below the secondary elongated hole (147). When the disc grate is positioned at the rear of the disc pace, the protrusion (146) of the disc grate pushes the interlocking part (145) and engages the locking pawl. (144) is released from the moving body-〇 lock.

The protrusion/retraction control lever (140) has a locking pawl (150) at one end, and the other end is located on the side of the elongated hole through which the elevating moving body moves. (4) Connected to the interlocking lever (152) which is pivotally supported above through the shaft (151) through the rond (153) and biased counterclockwise in FIG. 5 by the spring (154). has been done. Then, with the overwriting ri appearing and retracting moving body 63 moving forward, that is, in the direction in which the disk support (6) is retracted into the main body (1), the locking claw (15) is moved forward.
0) engages with the engagement recess (52α) formed in the movable body 64 to lock the movable body 65. A protruding piece (155) is provided to protrude from the moving body for lifting and lowering, with respect to the interlocking lever (152). The above elevating body (
7) and when the lower chuck body (C) is lowered, that is, when the elevating work #Iv body Shiki moves backward, the protrusion (155) rotates the interlocking lever (152) counterclockwise and , rotate the retraction control lever (140) clockwise via the lock (153), and lock the locking claw (15).
0) to release the locking of the movable body 6a.

Therefore, in the state shown in FIGS. 5 and 6, the moving body for elevating and retracting (52 moves forward and the disk support (6) is recessed into the main body (1), and the moving body for elevating and lowering K[) l
moves forward to the elevating body (7) and the lower chuck body)
In the state where is rising, the moving body for elevating and retracting (54 is locked by the ejecting and retracting control lever (140) and cannot be moved, and the moving body for elevating and lowering (8I) is moved rearward, that is, the moving body for elevating and lowering (7) and the lower chuck body (c) can be lowered.And,
When the elevating moving body moves backward, its protrusion (155
), via the interlocking lever (152) and the rod (153),
54 is released, thereby causing the six moving bodies for appearing and retracting to move rearward, that is, the main body (1) of the disk support (6).
) Allows for protrusion to the front. And the moving body 6 for appearing
2 moves backward, the disk plate (c) of the disk support (6) moves forward and its protrusion (146
) is the series ll1I-1 part (1) of the lift control lever (138).
, 45), the locking claw (144) of the lift control lever (138) engages with the engagement recess (SOα) of the lift moving body shaft, and the lever (138) locks the moving body ridge 1). As a result, the forward movement of the elevating moving body shaft and the rising of the ascending god body (7) and the lower chuck body (7) are stopped by 1!14. 1, in this state, the moving body M for appearance or removal force is 1
1C$ 11υ and the disk support (6) is the main body (J)
When the elevating body (7) and the lower chuck body (c) are lowered by protruding into the 611 part of ), and cannot be moved by the disk support (0
) can be immersed into the body (1). Then, when the moving body 5 for appearing and appearing moves forward, the disk support body (6
) is inserted into the main body (1), the protruding piece (146) of the disc plate (A) pushes the interlocking part (145) of the elevation control lever (138), and the elevation control lever (1, 38) moves up and down. The locking of the movable body shaft for use is released, thereby making it possible to move the elevating movable body @① forward, that is, to raise the elevating body (7) and the lower chuck body (7). When the elevating moving body (80) moves forward, the projecting piece (15)
5) separates from the interlocking lever (152) and retracts 1trll.
The locking pawl (150) of the unloading lever (140) engages with the floor recess (52a) of the retractable moving body 61.
40) locks the moving body (5), thereby moving the moving body 64 for appearing and retracting backward, that is, the disk support (6)
The main body (1) is prevented from protruding to the front, and as shown in FIGS.
It will be in the state shown in the figure.

Further, a rise detection switch (158) is provided at the front end of the elongated hole 1) through which the elevating moving body H0) moves, and at the rear end of the elongated hole through which the appearing/disappearing moving body H0) moves. A protruding detection switch (159) is provided on the pickup board (1), and big amplifier detection switches (160) and (161) are provided at the front and side of the pickup board (1).

Next, the overall operation will be explained.

The explanation is based on Figures 3 to 6, Figures 9 and 12.
In the state shown in the figure, that is, the disk support (6) is the main body (1).
Start from the state where the elevating body (7) and the lower chuck body (c) rise and move forward.

First, issue an "open command" by operating the operation display section (2).

Then, the loading motor (128) is driven, the drive pulley (126) is rotated counterclockwise, and the drive strip 1
By the line (134), the pink amplifier board α0, the moving body 61 for appearance and descent, and the moving body for elevating and lowering head rearward (direction B) via the fJ pulley (109X105) (107) at the lower part of the rear side. Receives driving force.

Then, since the driving force applied to the pick-up board 7° (+q movement) is set small, first, the pick-up board 0Q moves backward by a predetermined stroke, that is, 30 c.
It moves through a stroke of about 10 crn required to reproduce the m LP disc (D) and is stopped by a stopper (not shown).

In this state, the moving body 154 for appearing and retracting is
(140), the elevating body (7) and the lower chuck are secondly moved rearward by a predetermined stroke and stopped by the not-shown knobs. The body (c) descends.

In this state, the projecting piece (155) of the elevating movable body υ) prevents the protruding and retracting movable body c from being locked by the protruding and retracting control lever (140) via the interlocking lever (152) and the rond (153). Thirdly, the moving body 6 for appearing and retracting moves rearward by a predetermined stroke, for example, 16c1n, and stops by a not-shown slip, and the protrusion detection switch (159) is activated.

Then, when the moving body 6 for appearance moves towards the rear, the disk grate of the interlocking strip (disk support (I) by '/I)? move forward in unison.

Note that when the moving body for appearing and retracting (54 starts moving backward), the protruding piece (146) of the disc plate (A) separates from the interlocking part (145) of the elevation control lever (138), and the elevation control lever (138) ) locks the elevating moving body.

Then, when the moving body 6'4 for appearing and appearing moves 16 m, the disk plate moves twice as much as 32 m, p, and the disk plate on the disk pene Qv? Assuming that the movable stroke of 4 is 10 m, the disc base Qυ protrudes 22 crn from the front of the main body (1), and the disc plate 4 protrudes a little more than 20 crn from the front of the main body (1).

In this state, the user places the disc (D) onto the nubindle of the lower chuck body (c) at the front end of the disc play).
or EP adapter 0]) and support it on the disc grate e4.

In this first festival, even in the case of the 30mLP disc (D), the disc plate @ protrudes by more than 20 muscles, so the LP disc (D) should be supported on the Dinuk plate (to the extent of the rear side in the anteroposterior direction). The support of the disk (D) will not become unstable, and the disk (D)
The support can be completely external to the body (1). And the protrusion length of disk space Qυ is 22crn
Therefore, it is possible to leave an extra length of 10 crn within the main body (1) for the movement of the disc space (at+earth) to the disc plate, so that the disc base (to the disc base) does not tilt downward.

In addition, the fitting of the disk (D) to the EP adapter 0υ is required for the lower chuck body stiffness Nuvindru fortress 1.
) This can be done reliably as the user can visually observe it from outside.

In addition, the brushes θ → (6) attached to the Dinuk support (when 6J moves forward, to the disc grate of the disc support (6)) and the disc base II are attached to each pick-up cartridge Q (2). and photoelectric detection mechanism (
11α) (12α), the needle tip of the Big Ag Cartridge αI and the photoelectric detection mechanism (11α)
Dust etc. on the light emitting/receiving section (12g) are removed.

Further, in this state, the user operates the operation display section (2) to set the playback order of the disc (D), etc.

(It may be done after loading this operation line Dinuk (D).) Then, while the disk (D) is supported and the playback order etc. are set, the top surface of the disk (B) is prepared for playback.
It is done as follows. (This is because it is the user's normal psychology to support the disc (B) with the side to be played first facing up, and also to speed up the loading of the next disc (D). In other words, as described above, when the moving body for appearing and retracting (521 moves backward by a predetermined stroke), the protruding detection switch (1
When this switch (159) is activated, the loading motor (128) iJ is driven in the opposite direction, causing the drive pulley (126) to rotate clockwise.

Therefore, the clockwise lU of the drive pulley (126)! 1
Q, via the drive line (134), the moving body 5 for appearing and retracting the big board αQ1 and the moving body for raising and lowering.
The movable pulleys (108) (104>(
106), it receives a driving force directed forward (in the F direction).

Then, since the driving force required to move the pickup board 0Q is set small, the pickup board α1 moves forward a predetermined stroke, that is, a stroke of about 10 mm, and is stopped by a stopper (not shown).
The front pick-up detection switch (160) is activated, and the loading motor (128) i=stops due to the activation of this switch (160).

Then, after supporting the disk (effect) as described above, the operation display section (2) is operated to issue a "close command".

Then, the loading motor (12g) is driven, the drive pulley (126) is moved clockwise, and the drive line (12g) is driven.
134) The pickup board (11, moving body for appearing and retracting 6'', !J, and moving body for elevating and lowering) is driven forward (in the F direction) through the movable pulley (108 x 104 x 106) at the lower front side, respectively. receive.

In this state, since the pickup board has already moved forward, the moving bodies 6 for appearing and retracting and the moving body for raising and lowering -
receives a driving force directed forward, but since the elevating movable body 64 is locked by the elevating control lever (138), the elevating movable body 64 moves forward by a predetermined stroke and hits a stopper (not shown). Okay, stop.

Then, when the movable body for appearing and retracting moves forward, the disk plate 4 of the disk support (6) is interlocked by the interlocking line σQ4 and moves twice the stroke backward, and the disk support (6) moves to the main body ( 1) The lower chuck body (C) at the front end of the disc plate (Foundation) moves into the elevating body (7).
) located above.

Also, the disk support (6) moves backward・jl−)°
When installing, the brush Shigatani pickup cartridge (11) and photoelectric detection mechanism (11α) (12α) attached to the disc plate) and the disc bay 7h are removed.
Since I will be rubbing it again, I will remove the big up cartridge 0.
The stubs on the tip of the needle and the light emitting/receiving parts of the photoelectric detection mechanisms (11α) (12α) are removed.

In this state, the protrusion (146) on the disc plate
pushes the interlocking part (145) of the lift control lever (138), and the lift control lever (138) releases the lifting moving body.Then, the lifting moving body moves forward. After moving a predetermined stroke and stopping at a stopper (not shown), a rise detection switch (158) is activated, and the gero-loading motor (128) is stopped by activation of this switch (158).

Note that when the elevating and lowering movable body starts moving forward, its protruding piece (155) separates from the interlocking lever (152), and the protruding and retracting control lever (140) locks the protruding and retracting movable body 62.

Then, when the elevating moving body moves forward,
The elevating body (7) rises, and its Nulast bearing υ lifts up the spindle in the lower chuck position, lifts the lower chuck body (c) from the disk plate (2) and supports it rotatably, and the spindle - is fitted into the recess (C) of the upper chuck body to align the center axis of the lower chuck body (C) with the center axis of the disk (D) of the upper chuck body -, and then lift and lower the When the movement of the moving body is completed, the disk (D) is elastically clamped by the spring σ7 between the chuck plate of the lower chuck body (c) and the upper chuck body (8bl).

Then, in this state, the disks (paddy) are played back in the order set by the user's operation.

For example, when regenerating the top surface of a 30cInLP disk (D): The "regeneration command" drives the rotation motor @η, and the upper chuck body (C) rotates clockwise at a predetermined number of rotations. This upper chuck body (goods) together with the disk (
D) and the lower chuck body) rotate, and the photoelectric detection mechanism (IIG) at the tip of the front upper pickup cartridge a1 detects the outer periphery of the disk (D), and the solenoid is activated. When the action of the Reno Corporation is released and the front upper arm a:1 becomes free, the pickup cartridge Q is brought into contact with the outer periphery of the upper surface of the disc (D) with a predetermined stylus pressure, and the disc ( Start playing D).

When reproduction of the disk (D) is started, the arm 01 is linearly tracked by driving the arm 01 backward toward the pickup board according to a well-known method.

That is, when the stylus of the pink-up cartridge 0ρ traces the sound groove of the disc (D) and the arm 09 swings a predetermined square pattern in the horizontal direction around the gimbal mechanism trowel, the stylus of the pink-up cartridge 0ρ is A photoelectric detection mechanism (not shown) detects the vibration of the loading motor (128), and in response to this signal, the loading motor (128) is driven at a voltage lower than that for the "open command" and "close command", and the driving pulley (1
26) rotates counterclockwise. Therefore, only the pink-up board 0I, which requires a small driving force for movement, moves rearward due to the low-torque rotation of the drive pulley (126). By moving this pickup board (11),
When the swinging state of the arm α field returns to its original state, the photoelectric detection mechanism detects this, and the loading motor (128) stops based on this signal. Therefore, the pickup board (1 (
By repeating the intermittent follow-up movement of the pickup board (1 (j)), the pickup board (1 (j) is activated, and the arm (+:!!) is linearly trunked.

In addition, when the diameter of the disk (D) is less than 30 tM, the big amplifier board a1 is held until the photoelectric detection mechanism (11α) provided at the tip of the pickup cartridge 0 detects the outer circumference of the disk Φ). After being driven rearward, a solenoid (96) is activated.

When the reproduction of the disk (D) is finished, the pickup board 01 is stopped by the stopper 9 (not shown), and the rear pickup detection switch (161) is activated. (128) stops and solenoid (G)
is deactivated, arm 04 moves to the lever (!ill
Pick up cartridge (11) by swinging from I/C
leaves the disk (D).

Also, when continuously reproducing the top and bottom surfaces of a 30 on LP disc (D);
) is regenerated, and after the regeneration of the top surface is completed, the rear big amplifier detection switch (161) is operated, and by the operation of this switch (261), each motor θ (12
8) stops, the solenoid (!J-) is deactivated, and the pink up cartridge 0v at the top of the front
is lrj+# from the top surface of the disk (D), the rotation motor (c) 7) is driven in the opposite direction, and the upper chuck body rotates counterclockwise at a predetermined number of rotations. The disk (D) and the lower chuck body (C) rotate together with the upper chuck body (8G), and the photoelectric detector 5 (
12α) detects the outer periphery of the disk (D), the solenoid 00 is activated and releases the action of the lever, and the rear lower arm (14 is free, pick-up cart reset, ) (Ii is the disc (D
) and regenerates Dinuku (D).

Then, the arm QΦ is moved to perform near dragging.

In addition, if the diameter of the disc (D) is less than 30 m,
After driving the pickup board α0 forward until the photoelectric detection mechanism (12cL) provided at the tip of the big amplifier cartridge 0a detects the outer periphery of the Dinuk (D), the NRENOIT 97) starts operating. ing.

When the reproduction of the lower surface of the disk (D) is finished, the pickup board θ0 is stopped by a stopper (not shown), and the front big amplifier detection switch (160) is activated. As the valley motor tJ37) (128) stops, the operation of the solenoid (!) η is released, and the arm α is swung by the lever (951) to close the pink amplifier cartridge θ.
each moves away from the disk (D).

Note that the playback of the disc (D) is not limited to the above-mentioned playback of the top side and continuous playback of the top and bottom sides, but also playback of only the bottom side.
Furthermore, the photoelectric detection mechanism (11α) (12α) of each pickup cartridge 01) can detect the signal recording portion of the disk (D) and the non-signal portion between the signal recording portions by the difference in light reflection. Therefore, by operating the operation display section (2), it is possible to set the playback order of the songs on both the top and bottom sides of the disc (D) to perform random playback, and it is also possible to perform repeat playback. You can also do it.

Then, when the disc (D) is to be taken out from inside the main body (1), an "oven command" is issued by operating the operation display section (2).

Then, as mentioned above, the pickup board θQ1
The elevating/lowering moving body (80) and the appearing/retracting moving body 152 move rearward in order, the lower chuck body (c) is lowered, and the disk (D) is supported on the disk support (6), and then, The disc support (6) protrudes to the front of the body (1) so that the user can remove the disc (D) from the disc support (6) outside the body (1).

When not in use, operate the operation display (2) to issue a "close command" and close the disk support (5) to the main body (1).
).

In addition, in this embodiment, the Dinuk play layer 4 was made to be able to move freely in the front and rear directions within the range of the Dinuk pace Q1).
By making the disc root movable until it protrudes toward the disc plate, the entire disc (D) can be supported on the Dinuk plate.

The present invention also provides a disc player for playing the above-mentioned conventional analog audio disc, an optical digital audio disc player, a capacitive video disc player with or without grooves, and an optical video disc player. It can also be applied to disc players, etc.

〔Effect of the invention〕

As described above, according to the present invention, in a horizontal front-loading type disc player, the disc support for loading is comprised of a disc space that is removably provided on the main body, and a disc space that moves on the disc base. = Since the disc plate is configured with a body, the length of the disc plate protruding from the main body is shortened by the amount of movement of the disc plate on the disc space, and the length of the part of the disc space supported within the main body is reduced by that amount. Therefore, by increasing the depth of the main body, it is possible to prevent the disk support from tilting downward when the disk support is projected, and the disk can be attached to and removed from the disk support by thermal spraying.

[Brief explanation of the drawing]

The figures show an example of a disk player of the present invention, in which Fig. 1 is a perspective view thereof, Fig. 2 is a plan view of its interior,
3 and 4 are a plan view and a vertical sectional view of the Dinuk support portion, FIGS. 5 and 6 are a plan view and a longitudinal sectional view of the chuck mechanism portion, and FIGS. 7 and 8 are The plan view and front view of the big amplifier part, Figures 9 to 12 show its drive system, Figures 9 and 12 are half views,
10 and 11 are side views corresponding to a part of FIG. 9, and FIG. 13 is a diagram of the driving principle thereof. (1)--Main body, (6)--Disc support, clinch-
・Disc Space, (Foundation)...Disc Plate, (D
)...Dinuk. Procedural amendment (voluntary) April 6, 1980 Commissioner of the Japan Patent Office Kazuo Wakasugi 2, Title of the invention Disc player 3, Relationship to the case of the person making the amendment Review of the patent applicant θ Sansui Denki Co., Ltd. 4, Agent 〒 160 4-3-22 Shinjuku, Shinjuku-ku, Tokyo (Ando Building) 6 Subject of amendment: "Detailed Description of the Invention" column in the specification, 7, Contents of amendment (1) Page 19, line 8 of the specification Insert the following sentence between line 9. "In addition, when supporting the tension pulley (63), as shown in FIG. The tip of this adjustment screw (64) is connected to the head of a movable support piece (screwed into 17 for adjustment screw 64) which pivotally supports the tension pulley (63), and fixed support piece (17, 1).
1, a cylindrical supporter (173), a washer v
(174) and a spring (175), the tension pulley (63) ) is pulled, so the slack of this interlocking filament (70) can be absorbed. (2) Mei II, page 58, line 13: ``Figure 13 is a diagram of its driving principle. The text J is corrected as follows. [Figure 13 is a diagram of its driving principle, Figure 14 The figure is a plan view showing a partial modification of the drive system.'' (3) Figure 14 is attached as an appendix. April 6, 1980 Patent applicant: Sansui Denki Co., Ltd.

Claims (1)

[Claims] (1) Support the disc on a disc support that protrudes like a drawer from the front of the main body, insert the disc support into the main body, insert the disc into the main body, and play Dinuk inside the main body. In the Dinuku player, the disc support is provided on the front part of the main body so as to be freely retractable, and the disc support is provided on the disc base so as to be movable in the front and back direction, and the disc support is provided on the front part of the main body so as to be freely retractable. and a disk grate supporting more than half of the body, with the disk space protruding from the front of the main body, and the disk plate placed on the disk grate with the disk plate advanced. supporting at least half or more of the rear side in the longitudinal direction, the disk space is immersed into the main body, and the disk plate is retreated to the rear part on the disk base to insert the disk into the main body. disc player.