JPH07254264A - Flexible cable mounting structure - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a flexible cable mounting structure in which a flexible cable connecting a moving body and a fixed portion is curved in a U shape. [Structure] The flexible cable mounting structure is connected via a flexible cable 52 to a circuit board 51 mounted on the lower surface of the tray 2 and a board 53 for external connection. The flexible cable 52 is bent in a U-shape on the side of the tray 2, and is bent from the end of the bent portion 52c along the cover 10b of the chassis 10 to extend in the B direction. And an existing portion 52d. The restricting member 58 extends in the sliding direction of the tray 2 (directions A and B), is fixed to one end 52 a of the flexible cable 52, and the curved portion 52 of the flexible cable 52.
The c is interposed in a gap 59 formed between the regulating member 58 and the inner wall of the housing portion 10a of the chassis 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible cable mounting structure, and more particularly to a flexible cable mounting structure in which a moving body and a fixed portion are connected via a flexible cable.

[0002]

2. Description of the Related Art For example, a compact disc (diameter 12 cm) reproduced by a laser pickup is used as a storage medium for storing information such as a database and software.
Or 8 cm) is being used. Therefore, a built-in CD-ROM drive device that is built in the housing is being developed so that it can be incorporated in a miniaturized notebook personal computer or the like.

In order to reduce the size of the apparatus of this type, it is considered that a tray pulled out for loading a disk is manually moved to a disk loading position inside the housing or a disk replacement position outside the housing. . And
The tray is provided with a turntable for rotating the disc, a pickup for detecting information recorded on the disc, a pickup driving motor for moving the pickup in the disc radial direction, and the like.

Therefore, the tray and the circuit board are connected via a flexible cable, and the flexible cable is zigzag between the rear portion of the tray and the rear wall surface of the chassis so as not to hinder the sliding operation of the tray. The flexible cable is expanded and contracted as the tray slides.

[0005]

However, in the conventional flexible cable mounting structure, since the flexible cable is bent in a zigzag manner, the flexible cable is easily damaged. Further, in order to solve the above problems,
If the flexible cable is bent in a U shape between the tray and the chassis, there is a problem that the flexible cable bent in the U shape is caught on the circuit board or surrounding parts every time the tray slides. .

Therefore, an object of the present invention is to provide a flexible cable mounting structure that solves the above problems.

[0007]

The invention according to claim 1 is
In a flexible cable mounting structure for connecting a movable body and a fixed portion via a flexible cable, the flexible cable is curved in a U-shape in a gap formed between a side surface of the movable body and the fixed portion, and It is characterized in that the movable body is provided with a regulating member for regulating the bending of the flexible cable.

According to a second aspect of the present invention, there is provided a flexible structure in which a tray having a pickup and a turntable, which moves to a disc mounting position or a disc exchanging position, and a circuit board provided on the chassis are connected via a flexible cable. In the cable mounting structure, the flexible cable is curved in a U shape in a gap formed between a side surface of the tray and the chassis.

Further, the invention of claim 3 is a flexible structure in which a tray having a pickup and a turntable, which moves to a disc mounting position or a disc exchange position, and a circuit board provided on the chassis are connected via a flexible cable. In the cable mounting structure, the flexible cable is curved in a U shape in a gap formed between the side surface of the tray and the chassis, and the tray is provided with a regulation member that regulates bending of the flexible cable. Is characterized by.

[0010]

According to the first aspect of the present invention, the flexible cable is prevented from being curved in a U-shape in the gap formed between the side surface of the moving body and the fixed portion and obstructing the movement of the moving body. Since the bending of the flexible cable is restricted by the restriction member extending in the moving direction of the moving body, when the moving body moves, the curved portion of the flexible cable may come into contact with or be caught by a peripheral component such as a circuit board. To prevent

According to a second aspect of the present invention, a flexible cable for connecting a tray having a pickup and a turntable of a disk device and a circuit board is U-shaped in a gap formed between the side surface of the tray and the chassis. The curved shape prevents the flexible cable from being broken due to the movement of the tray. Further, according to claim 3, the flexible cable is prevented from being broken by the movement of the tray of the disk device, and the bending of the flexible cable is restricted by the restriction member.
When the tray moves, the curved part of the flexible cable abuts on surrounding parts such as a circuit board,
Prevent it from being caught.

[0012]

1 to 4 show a disk device to which an embodiment of a flexible cable mounting structure according to the present invention is applied. In each figure, a CD-ROM drive device 1 (hereinafter referred to as "device") as a disk device is a built-in type device built in a casing of a notebook computer (not shown).

This device 1 generally has a tray (moving body) 2 for inserting a disk (not shown), a sub-chassis 3 for supporting the tray 2, and a tray for slidably supporting the tray 2. When the sliding mechanism 4, the optical pickup unit 5 provided on the sub-chassis 3, the turntable 6 that rotationally drives the mounted disc (CD-ROM), and the tray 2 are moved to the disc replacement position. A locking mechanism 7 for locking the tray 2 and a locking mechanism 8 for locking the tray 2 when the tray 2 moves to the disc mounting position.
And consists.

FIG. 1 shows the tray 2 with the top plate 9 shown in FIG. 3 removed.
Shows a state in which the tray has been moved to the disc mounting position housed in the apparatus, and FIG. The tray 2 is formed such that a part of a disk (not shown) protrudes from the tray 2 and has a lateral width smaller than the outer diameter of the disk, and slides in the A and B directions by a manual operation. The disc replacement position or the disc mounting position is reached.

Therefore, the apparatus 1 has trays A, B
Since a driving mechanism (composed of a motor, a transmission mechanism, etc.) for driving in the direction is not provided and the number of parts is reduced accordingly, the size and thickness are reduced. Reference numeral 10 denotes a chassis, which includes a storage portion 10a for storing the above-mentioned mechanisms, and a cover portion 10b for covering the disc protruding from the tray 2 so as to cover the disc below.
A space below the cover 9b is a space, for example, the device 1
Other devices in the notebook computer to which the is assembled will be installed.

A front bezel 11 is fixed to the front end of the tray 2 and slides integrally with the tray 2 in the A and B directions. A switch button 12 for unlocking the lock mechanism 8 when the tray 2 is pulled out is provided at the center of the front bezel 11. Therefore, when the switch button 12 is turned on in the state shown in FIG. 1, the front bezel 11 projects forward (direction A) by about 5 to 10 mm to facilitate the pulling operation of the tray 2, as described later.

As shown in FIGS. 3 and 5, the tray 2 is
A disk facing surface 2a forming a space for facing the disk, an opening 2b for a pickup and a turntable formed in the disk facing surface 2a, and a finger for taking out the disk placed on the disk facing surface 2a. And an arc-shaped opening 2c for ejecting the disc.

The disk-opposing surface 2a has a lateral width smaller than the outer diameter of the disk so as to cover the housing portion 10a of the chassis 10, and the entire circumference of the disk is not placed, but about 2 / It is formed so as to cover 3. As shown in FIGS. 3 and 6, the sub chassis 3
Is a rectangular frame 3a on which the tray 2 is mounted and fixed and has openings for a pickup and a turntable; a bracket 3b provided on the right side surface of the frame 3a and extending in the A and B directions; The guide rail pressing member 14 is screwed to the left side surface 3c of 3a. The guide rail pressing member 14 includes a pair of pressing portions 14 protruding above the frame 3a.
a and 14b.

As shown in FIGS. 3, 4 and 7 to 10, the tray sliding mechanism 4 has a pair of guide rail mechanisms 15 and 16 mounted on both sides of the sub chassis 3. The pair of guide rail mechanisms 15 and 16 are respectively fixed to the movable side rail 17 fixed to the bracket 3b of the sub chassis 3, the fixed side rail 18 extending parallel to the movable side rail 17, and the movable side rail 17. And a slide rail 19 which is interposed between the side rail 18 and slidably engaged with both members.

Movable side rail 17 and fixed side rail 18
Has a C-shaped cross section and has edges 17a and 18a bent inward. A rack 17b extending in the longitudinal direction is provided on the lower edge 17a of the movable rail 17. Further, the upper edge 1 of the fixed side rail 18
8a is provided with a rack 18b extending in the longitudinal direction.

The slide rail 19 has an H-shaped cross section, and has a first track 19a with which the edge 17a of the movable rail 17 engages, and a first track 19a with which the edge 18a of the fixed rail 18 engages. Second orbit 19b, first orbit 19a and second
Groove 19c formed between the track 19b and the track 19b.
A pinion 20 is rotatably housed at an intermediate position in the longitudinal direction of the groove 19c of the slide rail 19. The upper and lower parts of the pinion 20 are respectively on the movable side rail 1
7, and is engaged with the racks 17b and 18b of the fixed side rail 18.

In the guide rail mechanism 15, the movable side rail 17 is screwed to the side wall 10c of the chassis 10 and the fixed side rail 18 is screwed to the bracket 3b of the sub chassis 3 which supports the tray 2. Therefore,
When the tray 2 is pulled out, the fixed side rail 18 slides in the A direction with respect to the slide rail 19 and the pinion 20.
To rotate. As the pinion 20 rotates, the slide rail 19 slides in the A direction with respect to the movable rail 17.

Further, as shown in FIG. 11, the movable side rail 17 of the guide rail mechanism 16 has the pressing portions 14a, 1a of the guide rail pressing member 14 provided on the sub-chassis 3.
It is screwed to 4b. The pressing portions 14a and 14b
Are bent into a crank shape so as to function as leaf springs, and bend outward when fastened to the movable side rail 17.

Therefore, the movable-side rail 17 has the pressing portion 1
Due to the elastic restoring force of 4a and 14b, the tray sliding direction (A,
It is pressed in the X direction, which is orthogonal to the (B direction), and rattling in the lateral direction is prevented. As shown in FIG. 8 (A),
When the movable side rail 17 is pressed in the X direction, a first gap S1 is formed between the movable side rail 17 and the fixed side rail 18, and the second side of the fixed side rail 18 and the slide rail 19 is formed.
A second gap S2 is formed between the movable rail 17 and the slide rail 19 and a first gap 19a is formed between the movable rail 17 and the slide rail 19.
A third gap S3 is formed between and.

Therefore, the above-described first to third gaps S are provided between the rails 17 to 19 of the guide rail mechanism 16.
Since 1 to S3 are formed, the sliding resistance between the rails 17 to 19 is reduced. Therefore, the guide rail mechanism 16 can slidably support the tray 2 with low friction, and the movable side rail 17 is pushed in the X direction to slide the tray 2 in a state without rattling in the lateral direction. You can

Further, the fixed side rail 18 and the movable side rail 17
The slide rail 19 interposed between the fixed side rail 1 and
8 and the movable side rail 17 are slidably engaged, so that the movable side rail 17 can be moved with a stroke twice as much as the movement amount of the slide rail 19. Therefore, the guide rail mechanisms 15 and 16 can extend the stroke for guiding the tray 2 from the disk mounting position inside the housing to the disk exchange position outside the housing, and the movable side rail 17 is provided.
By pushing in the X direction, rattling of the tray 2 in the lateral direction can be prevented and the tray 2 can be pulled out smoothly.

As described above, the tray 2 is slidably guided by the guide rail mechanisms 15 and 16 interposed between both sides of the sub chassis 3 and the side walls 10c and 10d of the chassis 10, and the tray 2 is a disk. When in the mounting position, the rails 17 to 19 are housed in the chassis 10 as shown in FIG. When the tray 2 is pulled out in the A direction and moved to the disc exchange position, the slide rail 19 slides in the A direction by the distance L with respect to the fixed side rail 18 as shown in FIG. Slides in the direction A with respect to the slide rail 19 by a distance L.

As shown in FIGS. 2, 3 and 12,
A drive unit 21 having a pickup section 5 and a turntable 6 is provided above the sub chassis 3. The drive unit 21 includes a base 22 fixed above the sub chassis 3, a pickup unit 5 attached to the base 22, a pickup drive unit 23 for moving the pickup unit 5 in the disc radial direction, and a base 2
2 and the turntable 6 attached to it.

The pickup driving section 23 includes a pickup driving motor 24 provided on the lower surface of the base 22, a transmission mechanism 25 composed of a plurality of gears, a lead screw 26 driven via the transmission mechanism 25, and a lead screw 26.
And a guide shaft 27 that extends in parallel with and guides the pickup unit 5. Therefore, the pickup portion 5 is provided so as to face the opening 22a of the base 22 extending in the disc radial direction, and both sides thereof are slidably guided by the lead screw 26 and the guide shaft 27.

Since the pickup section 5 has the engaging section 28 which engages with the thread section of the lead screw 26, when the lead screw 26 is rotationally driven by the rotation of the pickup driving motor 24, it moves in the disk radial direction. To do. The turntable 6 has a turntable driving motor 29 in the lower part thereof. The turntable drive motor 29 drives the disc clamped on the turntable 6 at a constant rotation speed when the tray 2 reaches a predetermined mounting position in the apparatus 1.

As shown in FIGS. 7 and 13, the locking mechanism 7 is a mechanism for locking the tray 2 when the tray 2 moves to the disc exchange position shown in FIG. The locking mechanism 7 is provided on the tray 2, and is a first locking that locks the tray 2 by engaging the locking hole 30 formed in the chassis 10 when the tray 2 moves to the disc replacement position. Member 3
1 and a second locking member 33 that is provided on the side wall 10c of the chassis 10 and that locks the tray 2 by engaging the concave portion of the tray 2 when the tray 2 moves to the disc replacement position.

As shown in FIG. 14, the first locking member 31 is provided on the end of the bracket 3b of the subchassis 3, and the rivet 3 is attached to the lower surface 3d of the end of the bracket 3b.
It is composed of a leaf spring 31a fastened by No. 4 and an engaging portion 31b provided at the tip of the leaf spring 31a. Locking part 31b
Is a sliding contact surface 31c for slidingly contacting the chassis 10, and the chassis 1
The locking surface 31d is locked in the locking hole 30 of 0, and the inclined surface 31e is used when the locking portion 31b is separated from the locking hole 30.

Therefore, before the tray 2 is moved to the disc exchange position, as shown in FIG. 14 (A), in the first locking member 31, the sliding contact surface 31c of the locking portion 31b is the chassis 10.
And the leaf spring 31a is bent in the C direction.
That is, the sliding contact surface 31c of the locking portion 31b is caused by the leaf spring 31a.
Is pressed against the chassis 10, the reaction force of the leaf spring 31a acts on the tray 2. Therefore, tray 2
The vertical spring is prevented by the spring force of the leaf spring 31a.

Since the engaging portion 31b is made of synthetic resin, the frictional resistance is relatively small. Therefore, the sliding contact surface 31
Friction at the time of c slidingly contacting the chassis 10 is reduced, and the movement of the tray 2 is not hindered. Then, when the tray 2 is moved to the disc exchange position, the locking portion 31b is displaced in the D direction as shown in FIG.
No. 0 locking hole 30 and the locking surface 31d has a locking hole 3
It abuts the edge of 0. As a result, the tray 2 is restricted from moving in the A direction.

When the tray 2 moves in the B direction, the inclined surface 31e of the locking portion 31b rides on the edge of the locking hole 30 and is displaced in the C direction to be in the unlocked state. Therefore, the tray 2 is restricted from moving in the A direction only at the disc exchange position by the engagement of the first locking member 31 and the locking hole 30, and is allowed to move in the B direction.

As shown in FIG. 15, the second locking member 33.
Is composed of a roller 35 rolling on the side wall 2e of the tray 2 and a roller support member 36 rotatably supporting the roller 35. The roller 35 moves the tray 2 to move the tray 2.
When the tray 2 moves to the disk mounting position or the disk exchange position, it fits into the recesses 2f and 2g provided in the side wall 2e and restricts the movement of the tray 2 while rolling the side wall 2e.

One end 36a of the roller support member 36 is fastened to the side wall 10d of the chassis 10 by a rivet 37, and the roller 35 is supported by the tip 36c of the arm portion 36b. The arm portion 36b of the roller support member 36 functions as a leaf spring that presses the roller 35 in the E direction. That is,
The roller support member 36 rotatably supports the roller 35, and also functions as a leaf spring that presses the roller 35 against the side wall 2e of the tray 2. When moved to the position, the pressing force of the roller supporting member 36 causes the concave portion 2 to move.
The tray 2 is locked by fitting with f and 2g.

As shown in FIG. 7, the lock mechanism 8 is provided on the mounting portion 45a of the frame 3a of the sub chassis 3,
Locking roller 38 provided on the bottom portion 10f of the chassis 10
The lock lever 39 that is locked to the lock lever 3 and the mounting portion 45b of the frame 3a of the sub-chassis 3.
And a solenoid 40 for rotating 9 to the lock position or the unlock position.

The lock lever 39 is, as shown in an enlarged view in FIG. 16, a shaft 41 which stands upright on the frame 3a of the sub chassis 3.
Arm 39c having at its tip a bearing 39a that fits in the end and a claw 39b that engages with the locking roller 38 of the chassis 10.
And a connecting portion arm 39d connected to the plunger 43 driven by the solenoid 42. Solenoid 4
When the switch button 12 of the front bezel 11 described above is turned on, No. 2 is excited and attracts the plunger 43. The end of the plunger 43 penetrates and is connected to a hole 39e formed in the connecting arm 39d of the lock lever 39.

The plunger 43 pulls the connecting arm 39d by the electromagnetic force of the solenoid 42. Therefore,
The lock lever 39 is biased in the G direction by a torsion spring (not shown), and this spring force causes the claw portion 39 to move.
The lock roller 38 is brought into engagement with the lock roller 38b to be locked. Then, when the plunger 43 is attracted by the electromagnetic force of the solenoid 42, the plunger 43 is rotated about the shaft 41 in the H direction and the claw portion 3 is rotated.
9b is separated from the locking roller 38 and is in the unlocked state.

As shown in FIG. 13, the sub chassis 3
An ejecting pressing member 48 biased in the B direction by a coil spring 47 is provided on the mounting portion 46 of the frame 3a. The ejecting pressing member 48 has a long hole 48a that fits into a pin 49 standing upright from the frame 3a of the subchassis 3, and is slidably mounted in the A and B directions. One end of the coil spring 47 is hooked on the hooking pin 3d of the sub-chassis 3, and the other end is hooked on the hooking portion 48b of the ejecting pressing member 48.

Therefore, when the lock by the lock mechanism 8 is released, the ejecting pressing member 48 presses the rear portion 10g of the chassis 10 by the spring force of the coil spring 47. Due to the reaction, the sub chassis 3 moves in the A direction. As a result, the tray 2 provided on the sub chassis 3
The front bezel 12 moves in the direction of a predetermined distance A from the housing of a laptop computer (not shown), and the operation of pulling out the tray 2 becomes easy. Then, the front bezel 12 is manually A
When it is pulled in the direction, the tray 2 moves to the disc exchange position as shown in FIG.

Further, as shown in FIG. 4, a circuit board 51 for driving and controlling each part of the drive unit 21 is attached to the lower surface of the tray 2. This circuit board 51 is
The drive unit 2 is connected via the flexible cable 52.
1 pickup 5, turntable 6, pickup driving motor 24 and a substrate 53 for external connection. Therefore, the pickup 5, turntable 6, and pickup driving motor 24 perform a predetermined operation according to the control signal output from the circuit board 51.

The flexible cable mounting structure, which is the main part of the present invention, will be described below. 13 and 1
7. As shown in FIG. 18, the flexible cable 52
Has a plate-like connection terminal 55 at one end 52a and the other end 52
It has a plate-shaped connection terminal 57 at b. The connection terminal 55 is inserted into the connector 54 attached to the circuit board 51,
The connection terminal 57 is inserted into the connector 56 attached to the board 53 for external connection. In addition, the flexible cable 52 has a curved portion 5 that is curved in a U shape on the side of the tray 2.
2c and an extending portion 52d that is bent from the end of the curved portion 52c along the cover portion 10b of the chassis 10 and extends in the B direction.

The extension portion 52d of the flexible cable 52 is fixed to the cover portion 10b of the chassis 10, and the bending portion 52c expands and contracts so as to follow the sliding movement of the tray 2. In this way, the flexible cable 5
Since 2 is curved in a U shape at a gap 59 formed between the side surface of the tray 2 and the chassis 10, the tray 2 is prevented from being broken due to the movement of the tray 2 and does not hinder the movement of the tray 2. The curved portion changes so as to follow the tray 2.

Reference numeral 58 is a regulating member which regulates the degree of bending of the flexible cable 52, and is made of, for example, a synthetic resin plate. The restricting member 58 is provided in the sliding direction (A, B) of the tray 2.
Direction) and is fixed to one end 52a of the flexible cable 52 with an adhesive. Therefore, the curved portion 52c of the flexible cable 52 has the regulating member 5
8 and an inner wall of the housing portion 10a of the chassis 10 are provided in a gap 59 formed therebetween. Therefore, the one end 52a of the flexible cable 52 operates integrally with the regulation member 58, and the regulation member 58 regulates the degree of bending of the U-shaped curved portion 52c even when the tray 2 slides.

Further, the restricting member 58 includes a connecting terminal 55 bent 90 ° from one end 52a of the flexible cable 52.
When inserting the connection terminal 55 into the connector 54, the insertion operation can be easily performed by pressing the connection terminal 55. Here, the CD having the above configuration
The operation of the ROM drive device 1 will be described. As shown in FIGS. 1, 12, and 13, the apparatus 1 before mounting the disc has a tray 2 housed in the apparatus. When the tray 2 is mounted in the apparatus, the lock lever 39 of the lock mechanism 8 provided on the sub chassis 3 is locked to the locking roller 38 of the chassis 10 as shown in FIG.
As shown in (A), the roller 35 of the locking member 33 is fitted in the recess 2f of the tray 2, and the tray 2 and the sub chassis 3 are locked at the mounting position in the apparatus.

Further, the bending portion 5 of the flexible cable 52
As shown in FIG. 17, 2c is interposed in a gap 59 formed between the restricting member 58 extending in the A and B directions and the inner wall of the housing portion 10a of the chassis 10. Therefore, the curved portion 5
2c is held at a position separated from the substrate 53,
It is possible to prevent the corners from coming into contact with or being caught.

When the switch button 12 of the front bezel 11 is turned on, the plunger 43 is attracted by the electromagnetic force of the solenoid 42, the lock lever 39 rotates about the shaft 41 in the H direction, and the claw portion 39b moves. The lock roller 38 is separated from the locking roller 38 and is in the unlocked state. In this way, when the lock of the sub chassis 3 by the lock mechanism 8 is released, the ejecting pressing member 48 shown in FIG.
The rear portion 10g of the chassis 10 is pressed by the spring force of.
Due to the reaction, the sub chassis 3 and the tray 2 move in the A direction.

The roller 35 of the locking member 33 is fitted in the concave portion 2f of the tray 2, but as shown in FIG.
The ejecting pressing member 48 is the rear portion 1 of the chassis 10.
When 0g is pressed, the inclined portion of the concave portion 2f rolls and comes into sliding contact with the side wall 2e of the tray 2. Therefore, the sub-chassis 3 and the tray 2 move in the direction A for a predetermined distance to a position where the front bezel 12 projects from the housing of the notebook computer (not shown) and the operation of pulling out the tray 2 is easy. And
When the front bezel 12 is manually pulled in the A direction,
As shown in 0, the pair of guide rail mechanisms 15, 16
The movable rail 17 slides in the A direction along the slide rail 19, and the slide rail 19 slides in the A direction along the fixed rail 18.

Further, when the front bezel 12 is pulled in the A direction, the sub chassis 3 and the tray 2 slide in the A direction while being guided by the pair of guide rail mechanisms 15 and 16. During the sliding operation in the A direction, the roller 35 of the locking member 33 rolls while being pressed by the side wall 2e of the tray 2, so that the tray 2 is prevented from rattling in the lateral direction and is stable and smooth. Slide.

Further, the guide rail pressing member 1 described above is used.
4 pushes the movable side rail 17 of the guide rail mechanism 15 in the X direction, the rattling of the tray 2 in the lateral direction is prevented, and the tray 2 can be pulled out smoothly. As shown in FIG. 19, when the tray 2 starts sliding in the direction A, the regulating member 58 also moves in the same direction as the tray 2, so that the curved portion 52c of the flexible cable 52 protrudes from the end portion of the regulating member 58. Follow Tray 2.

Further, when the tray 2 slides in the A direction,
Since the regulating member 58 is separated from the substrate 53, the curved portion 52c of the flexible cable 52 largely protrudes in the longitudinal direction of the regulating member 58 and is curved, as shown in FIG. However, the curved portion 52c is in the space formed between the tray 2 and the substrate 53 caused by the tray 2 sliding in the A direction, and is sufficiently separated from the substrate 53.

When the tray 2 is moved to the disc exchange position as shown in FIGS. 2 and 21, the roller 35 of the locking member 33 is clicked into the recess 2g of the tray 2 as shown in FIG. 15 (C). Mating, and as shown in FIG. 14 (B),
The locking portion 31b of the locking member 31 is displaced in the D direction and fits into the locking hole 30 of the chassis 10, and the locking surface 31d abuts on the edge of the locking hole 30. As a result, the tray 2 is locked at the disc replacement position and its movement in the A direction is restricted.

Therefore, in the process of pulling the front bezel 12 in the direction A, the roller 35 of the locking member 33 fits into the recess 2g of the tray 2 as described above, so that the tray 2 is clicked.
Will be locked, and the feeling of operation will be good. Therefore, the tray 2 is prevented from being pulled too much in the direction A and the tray 2 is prevented from falling off, or the tray 2 is not stopped before reaching the disc replacement position because the disc replacement position is unknown.

When the tray 2 is locked at the disc exchange position in this way, the disc clamped on the turntable 6 is taken out. Next, after a new disk is clamped on the turntable 6, the front bezel 11 is pressed in the B direction. When the front bezel 11 is pressed in the B direction,
The roller 35 of the locking member 33 rolls in the recess 2g of the tray 2 to reach the side wall 2e, and the locking member 31 locks the locking portion 3g.
The inclined surface 31e of 1b rides on the edge portion of the locking hole 30 and is displaced in the C direction to be in the unlocked state.

Therefore, the tray 2 slides in the direction B from the disc exchange position while being guided by the pair of guide rail mechanisms 15 and 16 and returns to the disc mounting position shown in FIGS. 1, 8 and 13. Also in that case, the roller 3 of the locking member 33
Since 5 rolls while being pressed by the side wall 2e of the tray 2, the tray 2 is prevented from rattling in the lateral direction and slides stably and smoothly.

When the tray 2 slides in the direction B from the disc exchange position, the curved portion 52c of the flexible cable 52 is
Contrary to the above-mentioned drawing operation, the state changes from the state shown in FIG. 21 to the states shown in FIGS. Therefore, in the process of returning the tray 2 to the disc mounting position, the tray 2 slides in the B direction and the curved portion 52c of the flexible cable 52 is located between the restricting member 58 and the inner wall of the housing portion 10a of the chassis 10. It intervenes in the formed gap 59. Therefore, the curved portion 52c is provided with the regulating member 5
8 prevents the substrate 5 from being bent toward the side of the substrate 53.
Since it is held at a position separated from 3, it is prevented that it comes into contact with or is caught in a corner of the substrate 53.

As described above, the flexible cable 52 has the curved portion 52 when the tray 2 is at the disc mounting position.
c does not protrude from the gap 59 due to the restricting member 58,
While the tray 2 moves from the disc mounting position to the disc exchange position, the bending portion 52c protrudes from the regulation member 58, and the bending portion 52c follows the sliding movement of the tray 2.
It is possible to prevent c from coming into contact with surrounding parts and being damaged.
Therefore, even if the tray 2 slides repeatedly, the flexible cable 52 can be protected from surrounding parts, the device 1 can be prevented from malfunctioning due to damage to the flexible cable 52, and the reliability of the device 1 can be further enhanced. ing.

When the tray 2 arrives at the disc mounting position, the roller 35 of the locking member 33 click-fits into the recess 2f of the tray 2, and the lock lever 39 of the lock mechanism 8 locks the chassis 10. The roller 38 is locked. Therefore, it is possible to feel by touch that the tray 2 has arrived at the disc mounting position by a click feeling when the roller 35 of the locking member 33 is fitted into the recess 2f of the tray 2.

The flexible cable mounting structure is not limited to the above-mentioned embodiment, and the present invention can be applied to any flexible cable that connects a moving side circuit and a fixed side circuit of an electronic device other than the above. Of course.

[0062]

As described above, according to the invention of claim 1,
Since the bending of the flexible cable is restricted by the restriction member extending in the moving direction of the moving body, when the moving body moves, the curved portion of the flexible cable may come into contact with or be caught by a peripheral component such as a circuit board. Can be prevented. Further, the flexible member can be protected from being damaged by the restricting member even when the moving body is repeatedly moved, and the reliability of the device can be further enhanced.

According to a second aspect of the present invention, the flexible cable connecting between the tray having the pickup and the turntable of the disk device and the circuit board is U-shaped in the gap formed between the side surface of the tray and the chassis. Since the flexible cable is curved, it is possible to prevent the flexible cable from being broken due to the movement of the tray. Further, according to claim 3, the flexible cable is prevented from being broken by the movement of the tray of the disk device, and the bending of the flexible cable is regulated by the regulation member. It is possible to prevent the contacted portion from abutting on or being caught by a peripheral component such as a circuit board.

[Brief description of drawings]

FIG. 1 is a perspective view of a disk device to which an embodiment of a flexible cable mounting structure according to the present invention is applied.

FIG. 2 is a perspective view showing a state in which a tray is pulled out.

FIG. 3 is an exploded perspective view of a CD-ROM drive device.

FIG. 4 is an exploded perspective view continued to the lower part of FIG.

FIG. 5 is a plan view of the tray.

FIG. 6 is a diagram of a sub-chassis.

FIG. 7 is a plan view showing a state where both sides of the sub chassis are supported by guide rail mechanisms.

FIG. 8 is a vertical sectional view showing a guide rail mechanism and a pressing member.

FIG. 9 is a side view for explaining the guide rail mechanism when the tray is stored.

FIG. 10 is a side view for explaining the guide rail mechanism when the tray is pulled out.

FIG. 11 is an enlarged view showing a guide rail mechanism and a pressing member.

FIG. 12 is a plan view with a top plate removed.

FIG. 13 is a plan view in which a part of the tray is cut away.

FIG. 14 is a side sectional view showing, in an enlarged manner, the operation of the first locking member.

FIG. 15 is an enlarged plan view showing the operation of the second locking member.

FIG. 16 is an enlarged plan view showing a lock lever.

FIG. 17 is a plan view showing the flexible cable and the regulating member when the tray is at the disc mounting position.

FIG. 18 is a plan view showing the shape of a regulation member.

FIG. 19 is a plan view for explaining a state when the tray starts sliding from the disc mounting position.

FIG. 20 is a plan view for explaining a state when the tray further slides.

FIG. 21 is a plan view showing a state where the tray disc is pulled out to a replacement position.

[Explanation of symbols]

 1 CD-ROM drive device 2 Tray 3 Sub chassis 4 Tray sliding mechanism 5 Pickup part 6 Turntable 7 Locking mechanism 8 Lock mechanism 10 Chassis 11 Front bezel 12 Switch button 14 Guide rail pressing member 15, 16 Guide rail mechanism 17 Movable Side rail 18 Fixed side rail 19 Slide rail 20 Pinion 21 Drive unit 22 Base 23 Pickup drive unit 24 Pickup drive motor 26 Lead screw 27 Guide shaft 30 Locking hole 31 First locking member 33 Second locking member 35 Roller 36 Roller Supporting Member 38 Locking Roller 39 Lock Lever 51 Circuit Board 52 Flexible Cable 52c Curved Part 53 Board 54, 56 Connector 58 Restricting Member

Claims (3)

[Claims] 1. A flexible cable mounting structure for connecting a movable body and a fixed portion via a flexible cable, wherein the flexible cable is U-shaped in a gap formed between a side surface of the movable body and the fixed portion. A flexible cable mounting structure, characterized in that it is bent into a curved shape, and a regulation member that regulates bending of the flexible cable is provided on the moving body. 2. A flexible cable mounting structure for connecting, via a flexible cable, a tray having a pickup and a turntable, which moves to a disc mounting position or a disc replacement position, and a circuit board provided on the chassis, wherein the flexible cable mounting structure A flexible cable mounting structure, wherein the cable is curved in a U shape in a gap formed between a side surface of the tray and the chassis. 3. A flexible cable mounting structure for connecting a tray, which has a pickup and a turntable and is moved to a disk mounting position or a disk replacement position, to a circuit board provided on a chassis via a flexible cable, wherein A flexible cable attachment, characterized in that the cable is curved in a U shape in a gap formed between a side surface of the tray and the chassis, and the tray is provided with a restricting member for restricting flexure of the flexible cable. Construction.