JP2005332536A - Disk unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To rapidly and easily wire a lead wire and cable at the shortest distance. <P>SOLUTION: A shielding plate 15 covering a top surface at the rear of a loader chassis 2 is disposed and four legs 15A to 15D are integrally projected at prescribed intervals in advancing and retreating a and b directions at both side edges on the under surface of the shielding plate 15. A hook section 15a is integrally formed on the top end of each of legs 15A to 15D. Vertical grooves 17 for insertion of the legs 15A to 15D are formed at the outer peripheral surfaces at the rear of both side walls of the loader chassis 2 and transverse grooves 18 for disengageably engaging the respective hook sections 15a are formed in communication with the respective vertical grooves 17. By inserting the legs 15A to 15D into the vertical grooves 17 and engaging the hook sections 15a with the transverse grooves 18, the shielding plate 15 is fixed onto the rear of the loader chassis 2 and the lead wire and cable are locked to the locking piece 16a integrally projected atop the shielding plate 15. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a disk device for playing, recording, or erasing a disk such as a DVD, for example, and in particular, noise is not transferred to a lead wire for connecting to a power source or a cable for connecting to an information processing device. Wiring is performed with the shortest distance.

Conventionally, there is a disk device technology described in Patent Document 1 and the like, and an example thereof will be described with reference to FIG. A resin loader chassis 2 is fixed, a tray 3 is disposed on the loader chassis 2 so as to be able to move forward and backward, and an opening 1a is formed on the front panel of the outer casing 1 so as to face the tray 3, and the tray A turntable 4 and an optical pickup 5 are provided in a vertically movable drive chassis (not shown) below 3, and a control device input connector 6 provided on the side of the loader chassis 2 is connected via a lead wire 7. A control device output connector 10 provided at the rear of the loader chassis 2 is connected to a power supply connector 9 provided on the AV board 8 at the rear of the loader chassis 2. It is connected to the back-end substrate 12 connector for video apparatus provided on (connector information processing device) 13 of the side of the main chassis 2 via the table 11.

In the above configuration, a power source is connected to a control device (not shown) via the lead wire 7, and the drive chassis is moved up and the disk D on the tray 3 is lifted by the turntable 4 by the drive control of the control device. The disk D is rotated at a high speed by the turntable 4, the information recorded on the disk D is read by the optical pickup 5, and the read information signal is transmitted to the video equipment via the cable 11, whereby the monitor Play, record, or delete video.

The assembly procedure will be described. After the loader chassis 2 with the tray 3 is fixed at a predetermined position in the outer casing 1, the lead wire 7 and the cable 11 are wired to the outside of the loader chassis 2 and both ends thereof are connected to the connectors 6, 9, 10, 13.
JP-A-7-93963

In the above-described conventional configuration, the lead wire 7 and the cable 11 are wired far outside the loader chassis 2, and the lead wire 7 and the cable 11 are relatively long and expensive, resulting in an increase in cost. In addition, noise is easily transferred as much as the lead wire 7 and the cable 11 are relatively long, and recording / playback is likely to be disturbed.

Therefore, it is conceivable that the lead wire 7 and the cable 11 are routed at the shortest distance through the rear upper portion of the loader chassis 2. However, in this case, the lead wire 7 and the cable 11 are bent to contact the tray 3, and the tray 3 There is a risk of hindering forward and backward travel a, b.

The present invention has been made in view of the above-described conventional drawbacks, and an object of the present invention is to provide a disk device in which a lead wire and a cable can be quickly and easily wired at the shortest distance without hindering forward / backward movement of the tray.

In order to achieve the above object, according to a first aspect of the present invention, a tray is disposed on the loader chassis so as to be able to move forward and backward, and a turntable and an optical pickup are provided below the tray, The control device input connector provided in the section is connected to the power connector provided at the rear of the loader chassis via a lead wire, and the control device output connector provided at the rear of the loader chassis is connected to the loader chassis via a cable. It is connected to the connector for information processing equipment provided on the side, the power supply is connected to the control equipment via the lead wire, the disk on the tray is lifted by the turntable by the drive control of the control equipment, and the turntable Rotate the disc at high speed, read the information recorded on the disc with an optical pickup, In the disk device that transmits the received information signal to the information processing device via the cable, a shield plate that covers the rear upper surface of the loader chassis is provided, and the lead wire and the cable are provided on the upper surface of the shield plate. A plurality of locking pieces for locking are integrally projected, and four leg portions are integrally projected at predetermined intervals in the forward and backward direction at both side edges of the lower surface of the shielding plate, and the front two legs The hook part that protrudes outward is slightly formed at the front end and is slightly inclined outwardly to the forward side, and the two rear leg parts are slightly inclined outwardly toward the rearward side at the front end. A hook portion protruding backward is integrally formed, and a vertical groove for inserting each leg portion is formed on the rear outer peripheral surface of the both side walls of the loader chassis, and each of the vertical grooves communicates with each of the vertical grooves. Engage the hook part removably A horizontal groove is formed, and the shield plate is fixed on the rear portion of the loader chassis by inserting the leg portions into the vertical grooves and engaging the hook portions with the horizontal grooves. The lead wire and the cable are locked to the locking piece.

According to a second aspect of the present invention, there is provided a control device provided on a side portion of the loader chassis, wherein the tray is disposed on the loader chassis so that the tray can be moved forward and backward, and a turntable and an optical pickup are provided below the tray. An input connector is connected to a power supply connector provided behind the loader chassis via lead wires, and an output connector for control equipment provided at the rear of the loader chassis is provided on the side of the loader chassis via a cable. Connected to the device connector, the power source is connected to the control device via the lead wire, the disk on the tray is lifted by the turntable by the drive control of the control device, the disk is rotated at high speed by the turntable, The information recorded on the disc is read by an optical pickup, and the read information signal is read by the cable. In the disk device that is transmitted to the information processing device via the cable, a shielding plate that covers the rear upper surface of the loader chassis is provided, and a plurality of members for locking the lead wire and the cable to the upper surface of the shielding plate. A locking piece is integrally projected, and four leg portions are integrally projected at predetermined intervals in the forward / backward direction on both side edges of the lower surface of the shielding plate, and a hook portion is integrally formed at the tip of each leg portion. A vertical groove for inserting the legs is formed on the rear outer peripheral surface of the both side walls of the loader chassis, and the hook parts are engaged with the hooks in a detachable manner in communication with the vertical grooves. The horizontal plate is formed, and the shield plate is fixed on the rear portion of the loader chassis by inserting each leg portion into each vertical groove and engaging each hook portion with the horizontal groove, and on the upper surface of the shield plate. Lead wire and cable on locking piece It is characterized in that so as to lock the.

According to a third aspect of the invention, in the invention of the second aspect, of the four leg portions, a hook portion integrally formed with the two front leg portions protrudes forward, and thereafter A hook portion formed integrally with the two leg portions on the side is projected to the reverse side.

The invention according to claim 4 is the invention according to claim 3, wherein the two legs on the front side are slightly inclined outwardly to the forward side and the two legs on the rear side are outwardly exposed to the backward side. It is characterized by a slight inclination in the form of a spread.

The invention according to claim 1 corresponds to one embodiment (see FIGS. 1 to 7), and according to this, the lead wire and the cable are used by using the shielding plate and each locking piece. Since the wiring is carried out at the shortest distance through the loader chassis, the wiring does not hinder the forward and backward movement of the tray. By using shorter lead wires and cables than conventional ones, As a result, the cost can be reduced by that amount, and noise is hardly transferred to the shortened lead wires and cables, so that the recording / playback function can be greatly improved.

By simply inserting the four legs projecting from the shielding plate into each longitudinal groove of the loader chassis, the shielding plate is unrecognized along the forward / backward direction in the loader chassis and in the lateral direction perpendicular to the forward / backward direction. The hooks protruding from the ends of the legs can be engaged with the horizontal grooves communicating with the vertical grooves, so that the shield plate does not rise unexpectedly and does not come off the loader chassis. Can be fixed securely.

In addition, the hook portion integrally formed with the two front legs protrudes toward the forward side, and the hook portion integrally formed with the two rear legs protrudes toward the backward side. Since the distance between the hook portions facing each other in the advance direction is wide, the shield plate can be stably and more securely fixed to the loader chassis.

Furthermore, since each leg is slightly inclined outwardly, the leg is pressed against the inner surface of each longitudinal groove so that the shield plate does not vibrate unexpectedly by driving a turntable or optical pickup. Can be fixed integrally to the loader chassis.

The invention according to claim 2 shows a basic form. According to this, the lead wire and the cable are routed at the shortest distance through the upper portion of the loader chassis by using the shielding plate and each locking piece. Therefore, the wiring does not hinder the forward / rearward movement of the tray, and the lead wires and cables that are shorter than conventional ones can be used to reduce the cost. At the same time, there is almost no noise transferred to the short lead wires and cables, and the recording / playback function can be greatly improved.

By simply inserting the four legs projecting from the shielding plate into each longitudinal groove of the loader chassis, the shielding plate is unrecognized along the forward / backward direction in the loader chassis and in the lateral direction perpendicular to the forward / backward direction. The hooks protruding from the ends of the legs can be engaged with the horizontal grooves communicating with the vertical grooves, so that the shield plate does not rise unexpectedly and does not come off the loader chassis. Can be fixed securely.

According to the third aspect of the invention, the hook portion integrally formed with the two front leg portions protrudes toward the forward side, and the hook portion integrally formed with the two rear leg portions is the reverse side. Since the space | interval between the hook parts which oppose along the forward / backward direction is taken wide, the shielding board can be fixed to the loader chassis stably and more reliably.

According to the fourth aspect of the present invention, since each leg is slightly inclined outwardly, the leg is brought into pressure contact with the inner surface of each vertical groove, and the shielding plate is used as a turntable or an optical pickup. It can be fixed to the loader chassis so that it does not vibrate unexpectedly.

1 to 5 show a DVD type disk apparatus according to an embodiment of the present invention, and a synthetic resin shielding plate 15 is provided to cover the rear upper surface of the loader chassis 2. A plurality of locking pieces 16A and a reinforcing frame 16B for locking the lead wire 7 and the cable 11 are integrally projected on the upper surface. In FIG. 2, reference numeral 14 denotes a printed circuit board locked to the lower part in the loader chassis 2, on which an input connector 6 and an output connector 10 for a control device are arranged. Since the configuration other than the above is substantially the same as the configuration shown in FIG. 8, the same reference numerals are given to the same portions and the description thereof is omitted.

The shielding plate 15 is made of a rectangular plate, and has four leg portions 15A to 15D integrally projecting at predetermined intervals in the forward and backward a and b directions at both side edges of the lower surface, and the two front leg portions 15A. 15B, a hook portion 15a is integrally formed from the front end of the two rear portions 15C, 15D toward the forward side, and a hook portion 15a is integrally formed from the front end of the rear two leg portions 15C, 15D to the rearward side. ), The two front legs 15A and 15B are slightly inclined outwardly by a predetermined angle α (for example, 1 to 5 °) toward the forward side, and the two rear legs 15C and 15D are The vehicle is slightly inclined outwardly by a predetermined angle α (for example, 1 to 5 °) toward the reverse side.

As shown in FIGS. 6 and 7, vertical grooves 17 for inserting the respective leg portions 15 </ b> A to 15 </ b> D are formed on the rear outer peripheral surfaces of the side walls 2 a of the loader chassis 2, and communicated with the vertical grooves 17. Thus, a lateral groove 18 is formed for engaging the hook portions 15a in a detachable manner. As shown in FIG. 6A, positioning holes 19 are provided in both side edges of the shielding plate 15, and positioning protrusions are formed on the upper surfaces of the side walls 2a of the loader chassis 2 so as to face the shell positioning holes 19. 20 is integrally projected.

The assembly procedure will be described. As shown in FIGS. 6 (a) and 7 (a), the shielding plate 15 is grasped and lowered from the rear upper part of the loader chassis 2 to obtain FIGS. As shown in b), the leg portions 15A to 15D are inserted into the vertical grooves 17, and the front surfaces 15b of the two front leg portions 15A and 15B are brought into pressure contact with the front inner side surface 17a of the front vertical groove 17. At the same time, the rear surfaces 15c of the two rear legs 15C and 15D are brought into pressure contact with the rear inner surface 17b of the rear vertical groove 17, the positioning holes 19 are fitted to the positioning projections 20, and the hook portions 15a are connected to the horizontal grooves 18 and the hook portions 15a are engaged with the lower end corner portions 21 of the inner side surfaces 17a and 17b.

Subsequently, as shown in FIG. 1, after the lead wire 7 having one end connected to the input connector 6 is turned on the shielding plate 15 and locked to the locking piece 16A, the other end of the lead wire 7 is connected to the power source. After connecting the cable 11 having one end connected to the output connector 10 and being connected to the output connector 10 onto the shielding plate 15 to be locked to the locking piece 16A, the other end of the cable 11 is connected to the video equipment connector 13. Connecting.

According to the above configuration, the lead wire 7 and the cable 11 are wired at the shortest distance through the upper portion of the loader chassis 2 using the shielding plate 15 and the respective locking pieces 16A. The leads a and b are not obstructed, and the lead wires 7 and cables 11 that are shorter than conventional ones can be reduced in cost, and the leads that are shortened. Noise is hardly transferred to the line 7 and the cable 11, and the recording / playback function can be greatly improved.

By simply inserting the four leg portions 15A to 15D protruding from the shielding plate 15 into the vertical grooves 17 of the loader chassis 2, the shielding plate 15 is moved forward and backward in the a and b directions and in the forward and backward directions. It can be locked so as not to move unexpectedly along the left and right directions c and d orthogonal to the a and b directions, and the hook portions 15a protruding from the tips of the leg portions 15A to 15D are engaged with the horizontal grooves 18. Thus, the shield plate 15 can be reliably fixed so that it does not unexpectedly float and come off the loader chassis 2.

A hook portion 15a formed integrally with the two front leg portions 15A and 15B protrudes toward the forward movement a side, and a hook portion 15a formed integrally with the two rear leg portions 15C and 15D moves backward b. Since the distance L (see FIG. 6A) between the hook portions 15a projecting toward the side and facing along the forward and backward a and b directions is wide, the shielding plate 15 is attached to the loader chassis 2. It can be fixed more stably.

Further, as shown in FIG. 6 (a), the leg portions 15A to 15D are slightly inclined outwardly, so that the leg portions 15A to 15D are pressed against the inner side surfaces 17a and 17b of the vertical grooves 17. Thus, the shielding plate 15 can be integrally fixed to the loader chassis 2 so as not to be vibrated unexpectedly by driving the turntable 4 or the optical pickup 5.

It is a top view which shows the DVD type disc apparatus which is one Embodiment of this invention. It is the same side view. It is the same rear view. It is the same perspective view. It is the same exploded perspective view. (A) is the longitudinal cross-sectional view of the principal part before shielding plate fixation, (b) is the longitudinal cross-sectional view of the principal part after shielding plate fixation. (A) is the cross-sectional view of the principal part before shielding plate fixation, (b) is the cross-sectional view of the principal part after shielding plate fixation. It is a schematic plan view which shows a prior art example.

Explanation of symbols

2 Loader chassis
3 trays
4 Turntable
5 Optical pickup
6 Control device input connector 7 Lead wire
9 Power connector
10 Control device output connector 11 Cable 13 Video device connector (information processing device connector)
15 Shield plate
15A-15D Leg
15a hook part
16A Locking piece
17 Vertical grooves 17a, 17b Inner side surface 18 of vertical grooves Horizontal grooves a, b Back and forth D disk

Claims (4)

A tray is disposed on the loader chassis so as to be able to move forward and backward, a turntable and an optical pickup are provided below the tray, and an input connector for control equipment provided on a side of the loader chassis is connected to the loader via a lead wire. Connected to the power connector provided at the rear of the chassis, the control device output connector provided at the rear of the loader chassis is connected to the information processing device connector provided on the side of the loader chassis via a cable, The power supply is connected to the control device via the lead wire, and the disk on the tray is lifted by the turntable by the drive control of the control device, the disk is rotated at high speed by the turntable, and the information recorded on the disc is optically read. Information processing device that reads the information signal by the pickup, and reads the read information signal through the cable In the disk device configured to transmit, a shielding plate for covering the rear upper surface of the loader chassis is provided, and a plurality of locking pieces for locking the lead wire and the cable are integrally projected on the upper surface of the shielding plate. Four leg portions are integrally projected at predetermined intervals in the forward / backward direction on both side edges of the lower surface of the shielding plate, and the two front leg portions are slightly inclined outwardly to the forward side. A hook portion that protrudes forward is integrally formed at the tip, two rear legs are slightly inclined outwardly to the reverse side, and a hook portion that protrudes backward is integrally formed at the tip. Longitudinal grooves for inserting the respective leg portions are formed on the rear outer peripheral surfaces of both side walls of the chassis, and lateral grooves for communicating with the respective longitudinal grooves to detachably engage the respective hook portions. Each leg is formed in each longitudinal groove The shield plate is fixed on the rear portion of the loader chassis by inserting and engaging each hook portion with the lateral groove, and the lead wire and the cable are locked to each locking piece of the shield plate. A disk unit. A tray is disposed on the loader chassis so as to be able to move forward and backward, a turntable and an optical pickup are provided below the tray, and an input connector for control equipment provided on a side of the loader chassis is connected to the loader via a lead wire. Connected to the power connector provided at the rear of the chassis, the control device output connector provided at the rear of the loader chassis is connected to the information processing device connector provided on the side of the loader chassis via a cable, The power supply is connected to the control device via the lead wire, and the disk on the tray is lifted by the turntable by the drive control of the control device, the disk is rotated at high speed by the turntable, and the information recorded on the disc is optically read. Information processing device that reads the information signal by the pickup, and reads the read information signal through the cable In the disk device configured to transmit, a shielding plate that covers the rear upper surface of the loader chassis is provided, and a plurality of locking pieces for locking the lead wires and cables are integrally projected on the upper surface of the shielding plate. Four leg portions are integrally projected at predetermined intervals in the forward / backward direction on both side edges of the lower surface of the shielding plate, and hook portions are integrally formed at the ends of the leg portions. A longitudinal groove for inserting each leg portion is formed on the rear outer peripheral surface, and a lateral groove for releasably engaging each hook portion in communication with each longitudinal groove is formed, By inserting the legs into the vertical grooves and engaging the hooks with the horizontal grooves, the shield plate is fixed on the rear part of the loader chassis, and the locking piece is integrally projected on the upper surface of the shield plate. Lock the lead wire and cable. Disk apparatus according to claim. Of the four legs, a hook part integrally formed with the two front leg parts protrudes forward, and a hook part integrally formed with the two rear leg parts projects backward. The disk device according to claim 2, wherein the disk device is a disk device. 4. The front two legs are slightly inclined outwardly to the forward side, and the two rear legs are slightly inclined outwardly to the backward side. Disk unit.

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