JP4144324B2 - Disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disk device that drives an optical disk such as a CD (Compact Disc) or a DVD (Digital Versatile Disc) that is widely used as a recording medium, and protects electronic components inside the device from static electricity generated by an external cause. It relates to the intended configuration.
[0002]
[Prior art]
Generally, a device such as a personal computer (hereinafter referred to as a personal computer) has a built-in and integrated disk device for driving an optical disk, and information is recorded on and reproduced from the optical disk (see, for example, Patent Document 1). FIG. 18 shows the external appearance of a notebook personal computer incorporating such a disk device. Normally, the disk device in this case pops out the disk tray 101 by a switch operation or a command from the personal computer body, and further the personal computer. The user pulls out the disc tray 101 and loads the optical disc D therein.
[0003]
FIG. 19 shows an external appearance of a disk device that is often used particularly for notebook computers. As shown in FIG. 19, a turntable fixed to the drive shaft of a spindle motor disposed directly under the center of the disk tray 101 is shown. The central hole of the optical disk D is clamped by a clamp mechanism 102a integrally formed with the turntable 102 so as to transmit a rotational force. The head unit 103 mainly composed of an optical pickup moves in the radial direction in the slit 101a formed in the disc tray 101 so as to record and reproduce information on the optical disc D. The disc tray 101 configured in this manner is configured to be supported by the guide rail 104 and fit in the chassis case 105.
[0004]
FIG. 20 shows an attachment structure of the bezel 106 to the front surface of the disk tray 101. A ground plate 107 for discharging static electricity is fixed to the back surface of the bezel 106, and when the disk tray 101 is loaded, The open end 107a of the ground plate 107 is in contact with the opening 105a of the chassis case 105 so that a discharge path is formed.
[0005]
[Patent Document 1]
Japanese Patent Application No. 2002-97122 [0006]
[Problems to be solved by the invention]
By the way, the bezel is used to decorate the front face of the disk device, and usually the one designed in accordance with the personal computer is used. For this reason, in many cases, the supplier delivers the complete product of the disk unit without the bezel attached, and the PC manufacturer who received the disk unit produces its own bezel, It is fixed to the front end face of the tray. However, conventionally, since the ground plate is integrated with the bezel by heat caulking or the like, the processing cost has hindered cost reduction.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to simplify the above-described incidental processing in a disk device as much as possible. It is intended to improve the versatility of.
[0008]
[Means for Solving the Problems]
The present invention, in the disk apparatus that the disc tray loaded with a recording medium is advanced retracted within the chassis case to load / unload, earth plate for discharging the static electricity generated in the bezel portion, the bezel The problem is solved by being fixed to the front end surface of the disc tray when not mounted .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Although the present invention is suitable for implementation on a disk device that achieves a reduction in thickness, the present invention can be widely implemented on existing disk devices, and the object of implementation is not limited. Further, in order to facilitate understanding of the disk device that is the object of the present invention, the following description will be given, including an overview of the overall configuration.
[0010]
FIGS. 1 and 2 are perspective views showing the external appearance of a disk device embodying the present invention. In FIG. 1, reference numeral 1 is a disk tray integrally formed of synthetic resin, and a turntable 2 located at the center is The optical disk is clamped and rotated by a clamp mechanism 2a that is fixed to the drive shaft of the spindle motor 3 shown in FIG. The head unit 4 mainly composed of an optical pickup moves in the radial direction in the slit 1a formed in the disc tray 1 and records / reproduces information on / from the optical disc. The disc tray 1 configured as described above is configured to be supported by the guide rail 5 and fit in the chassis case 10.
[0011]
A notch 1b for avoiding contact with an electronic component of the printed circuit board 7 disposed in the chassis case 10 is formed at the end on the back side of the disc tray 1, and this notch 1b It is sealed with a sealing material 6 as necessary. Such a configuration is an effective means when the disc tray is configured to be thin, and the thickness equivalent to the disc tray 1 can be reduced.
[0012]
Next, the disc tray 1 is integrally formed with a side arm 1c that accommodates a slider mechanism C, which will be described later, on one side of the front end, and a bezel is formed on the front end surface of the disc tray 1 as shown in FIG. 8 is attached so that the tongue 8 a is inserted into the insertion hole 1 d of the disc tray 1. Reference numeral 8b is a through hole for inserting an operation pin for forcibly releasing the emergency lock state of the eject / lock mechanism in the disc tray 1 (emergency eject). Reference numeral 8c is an indicator display window, Reference numeral 8d denotes an operation button for unloading the disc tray 1.
[0013]
A ground plate 9 is attached to the engaging projection 1j of the disc tray 1 by a claw piece 9a on the front end surface of the disc tray 1, and when the disc tray 1 is loaded, its open end 9b is the chassis case 10. A discharge path is formed in contact with the opening. The function of the ground plate 9 is to prevent the influence of the static electricity on the human body when the disc tray 1 is forcibly released or when the fingertip contacts the operation button for unloading. This is intended to prevent damage to the sink and electrical parts.
[0014]
Next, the chassis case 10 molded from a light metal such as aluminum or magnesium comprises a base chassis 11 and a cover chassis 12 as shown in FIG. 2, and the opening of the base chassis 11 is covered with the cover chassis 12 and screwed. A synthetic resin holding rail 13 is fixed to both side ends of the base chassis 11, and a metal guide rail 5 is supported in the holding rail 13 so as to be movable forward and backward. Further, the guide rail 5 supports ridges 1d formed on both side ends of the disc tray 1 so as to be able to advance and retreat in an idle state. Therefore, when the disk tray 1 is completely accommodated in the chassis case 10, the chassis case 10 shields against magnetic and static electricity of the disk tray 1, and the open end 9 b of the ground plate 9 is formed at the opening of the chassis case 10. Abutting to form a discharge path. According to the configuration of the embodiment of the present invention, since the ground plate 9 is fixed to the front end surface of the disk tray 1, the influence of static electricity on the electrical components in the disk tray 1 can be obtained even when the bezel 8 is not attached. Can be prevented.
[0015]
FIG. 5 is an enlarged cross-sectional view showing the above-described configuration, that is, the assembled state of the holding rail 13, the guide rail 5, and the convex strip 1e of the disc tray 1 that serve as a transfer mechanism for the disc tray 1. As shown in FIG. On the outer surface of the guide rail 5 of the present invention, a fine unevenness 5a having a satin finish is formed. This is a process for reducing the sliding contact resistance between the holding rail 13 and the guide rail 5, and is for obtaining an operational feeling that makes the forward and backward movement of the disk tray 1 smoother.
[0016]
Although such a process is not applied to the conventional disk device, the clearance between the holding rail 13 and the guide rail 5 becomes extremely small as the disk device becomes thinner and the information density becomes higher. . This is important for preventing vibration and the like from affecting the recording / reproducing of information, and the clearance is designed to be the minimum necessary. If the holding rail 13 and the guide rail 5 are configured under such conditions, the contact rate of the sliding contact wall surface is increased, and a feeling of resistance is generated in the operation of the disc tray 1 and cannot be made smooth. Therefore, as described above, by forming the fine unevenness 5a on the guide rail 5, the sliding contact resistance is reduced and the smooth operation feeling of the disc tray 1 can be maintained.
[0017]
The fine irregularities may be formed on both the inner and outer surfaces of the guide rail 5, or on the holding rails 13 and the ridges 1d of the disk tray 1, in short, in contact with the slidable contact surface on which the fine irregularities are formed. The sliding contact surface may be a smooth surface. In FIG. 5, reference numeral 14 denotes a short-circuit member, and the holding rail 13 is an insulator, so that the guide rail 5 and the base chassis 11 are electrically connected. In the case of the embodiment shown in the figure, a metal steel ball is loaded into the window hole 13a of the holding rail, but a plate spring, a coil spring, a conductive fiber, etc. may be employed instead of the rope. .
[0018]
Next, an outline of the internal configuration of the disc tray 1 in the disc apparatus of the present invention will be described with reference to FIG. The figure shows a state in which the bottom cover 15 is removed. In the center, the spindle motor 3 for rotating the optical disk, the head unit 4, and the sled motor 16 and the gear for reciprocating the head unit 4 in the radial direction of the optical disk. A drive mechanism A mainly composed of the unit 17 is disposed. In addition, an eject / lock mechanism B is disposed at the corner of the front end corner of the disc tray 1, and a slider mechanism C is disposed in the side arm 1c.
[0019]
Both ends of the head unit 4 are provided on the guide shaft 18, and the teeth 19 b of the tooth member 19 fixed to the head unit 4 are guided by the guide grooves 20 a of the screw shaft 20 to move and reciprocate. I am doing so. FIG. 6 is an enlarged view of the main part of such a configuration. The main members of the tooth member 19 and the support member 21 are simultaneously fixed to the head unit 4 mounted on the guide shaft 18 by screws 22.
[0020]
As shown in FIG. 7, the tooth member 19 is formed with a tooth 19b meshing with a guide groove 20a of the screw shaft 20 on a hanging piece 19a at the main end, and a window hole 19c is formed at the center. Further, a window hole 19d is formed on the left and right of the window hole 19c, and a leg post 19e is formed integrally with the deep part of the window hole 19d. On the other hand, the support member 21 has a support piece 21b for preventing the drooping piece 19a of the teeth member 19 from coming up at the end of the main body, and a pressing piece 21a for supporting the drooping piece 19a while urging it from the back. Is formed.
[0021]
Therefore, when the tooth member 19 and the support member 21 are integrally fixed to the head unit 4, the hanging piece 19a of the tooth member 19 is pressed by the support piece 21b of the support member 21 as shown in FIG. It is urged forward. Thereby, the engagement of the teeth 19b of the hanging piece 19a with the guide groove 20a of the screw shaft 20 is ensured, and the drooping of the hanging piece 19a can be prevented. On the other hand, a force that pushes down the drooping piece 19a by the screw shaft 20 works, and when the drooping piece 19a is displaced as shown by an imaginary line in the figure, the leg 19e is also pushed down by the dripping piece 19a and comes into contact with the guide shaft 18, At this position, the displacement of the hanging piece 19a is limited.
[0022]
Thus, by fixing the tooth member 19 in combination with the support member 21, it is possible to completely prevent the teeth 19b of the hanging piece 19a from dropping from the guide groove 20a of the screw shaft 20, and the optical disk of the head unit 4 can be prevented. It becomes possible to cope with the speeding up of access to. That is, as the recording density of the optical disk increases, the frequency of reciprocation of the head unit 4 increases and the speed increases, and accordingly, the rotational speed of the screw shaft 20 also increases.
[0023]
In such a situation, a sudden driving force is applied to the teeth 19b of the drooping piece 19a from the guide groove 20a of the screw shaft 20, and at that moment, a component force directed upward or downward is generated and the drooping piece 19a is The tooth 19b and the guide groove 20a are shallowly engaged and pushed down, and the risk of falling off increases. Such a phenomenon appears particularly prominently at the end of the guide groove 20a of the screw shaft 20, and there is a high probability that the teeth 19b will drop out of the guide groove 20a. Could be prevented.
[0024]
Next, the configuration of the gear unit 17 for rotationally driving the screw shaft 20 will be described. Conventionally, the structure of such a gear unit has been manually performed by inserting the gear shaft of each gear into a bearing hole formed in the gear frame. However, in the case of such work, there is usually a high probability of damaging a dentition molded with a synthetic resin, and if there is a damaged gear in the gear unit, there is a problem that a so-called seek sound increases.
[0025]
Therefore, the disk apparatus of the present invention has adopted the configuration shown in FIG. In the configuration shown in the figure, the gear unit 17 is composed of a combination of three single gears G1, G2, and G3, and the gear G1 is fixed to the output shaft of the sled motor 16. On the other hand, a gear G2 is fixed to the screw shaft 20 to which the rotational force of the thread motor 16 is transmitted, and the shaft is inserted into a bearing hole formed in the gear frame. In this state, the gear G3 can be loaded without difficulty by dropping the gear shaft of the gear G3 into the bearing groove 24 formed in the gear frame 23.
[0026]
That is, conventionally, the gear G3 is loaded by inserting the gear shaft into the bearing hole, so that the gear cannot be kept horizontal when loaded, and the dentition is damaged. In this case, the gear G3 can be loaded while maintaining the horizontality, and the gears G1 and G2 are driven and rotated as the gear G3 is loaded, so that an excessive load is not applied to each tooth row. The risk of damage during assembly of the unit 17 can be avoided.
[0027]
In the case of the configuration of the gear unit 17, since the gear shaft of the gear G3 is loosely fitted in the bearing groove 24, a cover plate 25 is attached to prevent the gear shaft 17 from falling off. As shown in the inverted state in FIG. 9, the cover plate 25 has screw through holes 25 a at one end and two locking claws 25 b at the other end. When one end of the cover plate 25 is fixed to the gear frame 23 with a screw 26, one locking claw 25b at the other end engages with a window hole 23a formed in the gear frame 23, and the other locking claw 25b engages. Engage with the stop portion 23b. And when each said latching claw 25b engages with the said window hole 23a and the latching step part 23b, the inclined surface formed in the corner | angular corner part of the undercut part of the latching claw 25b is an engagement position of the gear frame 23. As shown in the blow-out view of FIG. As a result, the cover plate 25 can be securely fixed without floating, so that the cover plate 25 is excited to generate noise even when vibrations from the thread motor 16 and the gear unit 17 propagate. There is no.
[0028]
Next, the configuration and operation mode of the eject / lock mechanism B employed in the disk device of the present invention will be described. The eject / lock mechanism B is for fixing the state where the disk tray 1 is loaded in the chassis case 10 or for releasing the fixed state so that the disk tray 1 can be unloaded. As shown in FIG. 10, a self-holding solenoid 27, a release lever 28, a lock lever 29, and a return lever 30 are combined.
[0029]
In the self-holding solenoid 27, the tip ends of a pair of yokes 27a and 27b are inserted and fixed from the rear ends of the exciting coils 27c and 27d to almost the middle. Permanent magnets 27e are attached to the ends of the yokes 27a and 27b, thereby forming a horseshoe-shaped magnetic circuit. On the other hand, a movable piece 27f, which is a magnetic material, is inserted at the tips of the exciting coils 27c and 27d so as to be able to move forward and backward.
[0030]
For this reason, in the steady state, the movable piece 27f is held in a state of being attracted by the magnetic force of the magnetic circuit formed by the permanent magnet 27e. Then, by applying a direct current so that a magnetic field opposite to the magnetic field generated by the permanent magnet is generated from the terminals of the excitation coils 27c and 27d, the magnetic field generated by the permanent magnet 27e is canceled, The restraint of the movable piece 27f is released. Since the movable piece 27f is connected to a pin 28a fixed to the release lever 28, the release lever 28 also reciprocates in the horizontal direction in synchronization with the forward and backward movement of the movable piece 27f. The self-holding solenoid 27 is fixed to the disc tray 1 with screws.
[0031]
Next, the tension lever spring 31 is latched so that the release lever 28 is always urged in the left direction in the drawing, and the spring force is generated by the permanent magnet 27e of the self-holding solenoid 27. The condition is that it is weaker than the binding force.
[0032]
Reference numeral 29 denotes a lock lever that is always urged by a weak spring force in the counterclockwise direction in the drawing, and engages with a lock pin 32 fixed in the chassis case 10, so that the disc tray 1 A function to maintain the load state is provided. In general, many lock levers that perform such a function are integrally formed of synthetic resin. However, as the disk device as a whole becomes thinner, this lock lever also has to be made thinner. However, the lock lever with synthetic resin integral molding has a problem of reduced rigidity and is sufficient because the operation frequency is high. It must be durable.
[0033]
Therefore, in the present invention, as shown in FIG. 11, the resin main body 29a is configured by insert molding including the steel plate mold 29b. As is clear from the figure, the steel plate mold 29b is inserted at the tip, and the portion requiring the most rigidity is reinforced. And the edge part of the steel plate mold material 29b is exposed from a synthetic resin part, and the sliding contact resistance with the lock pin 32 becomes low. On the other hand, at the rear end portion of the lock lever 29, an activation end 29c and an inclined surface (driven surface) 29d for forced release are formed.
[0034]
By the way, this forcible release means that the disc tray 1 is loaded as shown in FIG. 12, and the disc tray 1 is in a state where the lock pin 32 is engaged with the angle portion 29e of the lock lever 29 due to, for example, a system abnormality. It is intended to cope with the occurrence of a failure that makes it impossible to unload. When such a failure occurs, an appropriate operation pin P is inserted from the through hole 8b of the bezel 8 as shown in the figure, and the tip is pushed while sliding along the inclined surface 29d of the lock lever 29. In this figure, the lock lever 29 is rotated in the clockwise direction, the engagement with the lock pin 32 is released, and the disc tray 1 can be pulled out.
[0035]
Since the inclined surface 29d of the lock lever 29 is a portion molded from a synthetic resin, it may be arbitrarily formed such as an inclined curved surface or an inclined surface having stepped angles θ1 and θ2 as shown in FIG. Thus, it is possible to arbitrarily form an inclined surface in a state where the operation feeling by the operation pin P is the best. In addition, as shown in FIG. 12, since the notch 15a is formed in the bottom cover 15 at a position corresponding to the inclined surface 29d of the lock lever 29, the operation pin P can be depressed, and the bottom cover 15 has a thickness equivalent to that. The thickness can be reduced, and the notch 15a serves as a guide groove for the operation pin P. Therefore, the free movement of the tip of the operation pin P during forced release can be suppressed, and the operability can be improved.
[0036]
Next, the return lever 30 is activated when its start end 30a is pressed by the return pin 32, and the release lever 28 is actuated by the action end 30b to return the self-holding solenoid 27 to a steady state. It is a thing. The return lever 30 can be returned to the original position (see FIG. 10B) by the tension coil spring 34.
[0037]
By the way, the return pin 32 has a conventional general configuration in which a metal material is formed in a columnar shape and an end portion thereof is caulked and fixed to the base chassis. However, since the material is metal and the cross-sectional shape is cylindrical, the sliding contact resistance with the return lever 30 is large, and when the disc tray 1 is loaded with a fingertip, a so-called click shock occurs and the operational feeling is increased. It was to decline.
[0038]
Therefore, in the present invention, the return pin 32 is formed of a synthetic resin that reduces the sliding contact resistance, and is integrally formed in a state of extending from the holding rail 13 as shown in FIG. As a result, the return pin 32 can be formed in an arbitrary cross-sectional shape. For example, as shown in the embodiment, a taper 32a can be formed on the contact surface to reduce sliding contact resistance and reduce click shock. did it. Further, since the directionality of the tapered surface 32a can be kept constant by integral molding with the holding rail 13 using synthetic resin, the quality of the product does not become unstable. By forming the return pin 32 integrally with the holding rail 13, the return pin 32 is not manufactured separately, and the fixing work to the base chassis 11 is not required. Can be reduced. In the figure, reference numeral 33 denotes a lock pin, which is fixed to the base chassis 11 by a caulking process. The total length is shorter than that of the return pin 32 so as not to contact the starting end 30a of the return lever 30.
[0039]
In FIG. 13, reference numeral 35 denotes a pop-out mechanism of the disc tray 1, and a tension coil spring 37 is stretched on the slide member 36. As a result, when the disc tray 1 advances leftward in the figure, the rear end portion of the disc tray 1 comes into contact with the end portion 36a of the slide member 36, and the disc tray 1 further advances and is locked in place. Then, the tension coil spring 37 is extended and the spring force is accumulated. Therefore, when the disk tray 1 is ejected and unlocked, the spring force accumulated in the tension coil spring 37 is released instantaneously, thereby pushing out the disk tray 1 and popping out.
[0040]
Next, the operation mode of the eject / lock mechanism B having the above-described configuration is as follows. First, the loaded disc tray 1 moves forward, and the return pin 32 hits the starting end 30a of the return lever 30 as shown in FIG. When the return lever 30 contacts and rotates counterclockwise, the action end 30b comes into contact with the tip of the release lever 28, and the release lever 28 is translated in the right direction. Accordingly, the tension coil spring 31 is extended, and the movable piece 27f of the self-holding solenoid 27 is pushed into the exciting coils 27c and 27d, and is attracted and held by the magnetic force by the permanent magnet 27e.
[0041]
When the disk tray 1 further advances, the lock pin 33 enters while pressing the top slope of the lock lever 29, and the lock pin 33 and the angle portion 29e of the lock lever 29 are engaged as shown in FIG. Then, the lock of the disc tray 1 is completed.
[0042]
On the other hand, in order to unload the disc tray 1, when releasing the locked state, that is, when ejecting, a direct current is applied to the exciting coils 27c and 27d of the self-holding solenoid 27 in the state of FIG. Then, the magnetic field formed by the permanent magnet 27e is canceled by the magnetic field generated thereby, and the restraint of the movable piece 27f is released, so that the spring force accumulated in the tension coil spring 31 is released, and the release lever 28 is released. Parallel to the left, the lower end of the release lever 28 abuts against the starting end 29c of the lock lever 29 and rotates the lock lever 29 in the clockwise direction. Therefore, at this time, the engagement between the lock pin 33 and the angle portion 29e of the lock lever 29 is released, and the disc tray 1 pops out by the action of the tension coil spring 37 of the pop-out mechanism 35 described above.
[0043]
Next, a configuration for improving the stationary stability of the disc tray 1 when the disc tray 1 is loaded and locked in the chassis case 10 will be described. As described above, the disk tray 1 moves forward and backward in the chassis case 10, but in order to allow this, a slight clearance is required for the support mechanism. However, this clearance also allows vibration of the disc tray 1 and causes reading errors and writing errors when an impact is applied.
[0044]
Further, the thinner the disk device, the closer the distance between the clamp mechanism 2a and the inner wall surface of the cover chassis 12, and the greater the risk of contact with each other. In this state, if the clamp mechanism 2a contacts the inner wall surface of the cover chassis 12 while the disk device is in operation due to some external factor, the rotation speed of the optical disk is rapidly decreased to cause a failure such as a read error or a write error. Therefore, this is an important issue that must be solved particularly in thinning the disk device and increasing the recording density.
[0045]
Therefore, in the present invention, when the disc tray 1 is locked, a stationary pressure is always generated in the disc tray 1, and this configuration will be described below. 1 to 3, rollers 38 and 39 are disposed inside the main part of the disk tray 1, and a part of the rolling surface is exposed to the surface of the disk tray 1. As shown in FIG. 14, in this configuration, bearing blocks 1g are formed on both sides of the window hole 1f, and an angle 1h and a positioning boss 1i for hooking the support plate 40 back and forth are formed. Therefore, when the roller shafts of the rollers 38 and 39 are arranged on the bearing block 1g and the support plate 40 is hooked on the angle 1h, the rollers 38 and 39 are rotatably attached to the back surface of the disc tray 1 as shown in FIG. It becomes a state.
[0046]
FIG. 16 is an enlarged view of the state of the rollers 38 and 39 arranged in this manner in the chassis case 10, and the rolling surfaces of the rollers 38 and 39 exposed on the surface of the disc tray 1 are covered. It contacts the inner wall surface of the chassis 12. At this time, the support plate 40 supporting the roller shaft functions as a leaf spring, and the rollers 38 and 39 are pressed against the cover chassis 12. Accordingly, the cover chassis 12 functions as a reaction point when the rollers 38 and 39 are stopped, and a static pressure is generated in the disc tray 1.
[0047]
The configuration using the rollers 38 and 39 can be carried out in a structurally relatively marginal portion on one side of the disc tray 1, but in a disc apparatus having a standard outer shape. The corresponding side portion cannot employ the above-described roller configuration. However, in order to make the stationary stability of the disc tray 1 more reliable, it is desirable that static pressure is generated on both sides of the disc tray 1, so that the present invention improves the slider mechanism built in the side arm. To solve this problem.
[0048]
In FIG. 12, the slider mechanism C built in the side arm 1c is supported at one end and is urged clockwise by the torsion coil spring 42 in the drawing so that the tip 41a swings. 41. A downwardly inclined surface 41b is formed on the side surface of the tip portion 41a of the slider 41 from the upper side to the lower side. On the other hand, the side wall 11a of the base chassis 11 and the side wall 12a of the cover chassis 12 with which the front end portion 41a of the slider 41 is slidably contact are formed at an angle that matches the inclination angle of the inclined surface 41b of the front end portion 41a.
[0049]
With this configuration, when the disc tray 1 is housed in the chassis case 10, the tip end portion 41 a of the slider 41 comes into sliding contact with the side wall 11 a of the base chassis 11 on the inclined surfaces as shown in FIG. 17. In such a state, the slider 41 is biased outward (P1) by the torsion coil spring 42, so that the stable state in the horizontal direction of the disc tray 1 which is the original function can be maintained, and the inclined surface Due to the sliding contact, a downward component force (P2) is generated, which becomes a static pressure and maintains a stable state in the planar direction of the disc tray 1.
[0050]
【The invention's effect】
As described above in detail, according to the configuration of the disc tray of the present invention, the ground plate is mounted on the front end surface of the disc tray in advance to complete the disc device. Since the process of integrating the ground plate can be omitted, the manufacture of the bezel and the installation work of the bezel can be simplified, the cost can be prevented, and a highly versatile disk device can be obtained. It becomes possible to provide.
[Brief description of the drawings]
FIG. 1 is a perspective view of a disk device in an unloaded state of a disk tray.
FIG. 2 is a perspective view of the disk device with a cover chassis removed.
FIG. 3 is a perspective view showing a configuration of a disc tray.
FIG. 4 is a plan view showing an internal configuration of a disc tray.
FIG. 5 is a cross-sectional view of a disc tray support structure.
FIG. 6 is a perspective view of a tooth portion of the transfer mechanism of the head unit.
FIG. 7 is a perspective view of a tooth member and a support member of the head unit.
FIG. 8 is a cross-sectional view of an assembled state of a tooth portion of the head unit.
FIG. 9 is a perspective view illustrating an assembled state of the gear unit in the drive mechanism.
FIG. 10 is an explanatory diagram of a configuration and an operation mode of an eject / lock mechanism.
FIG. 11 is a perspective view of a lock lever of an eject / lock mechanism.
FIG. 12 is an explanatory diagram of an eject / lock mechanism and a side arm portion.
FIG. 13 is a perspective view for explaining a configuration of a lock pin.
FIG. 14 is an exploded perspective view of a roller structure for generating static pressure.
FIG. 15 is an assembled perspective view of a roller structure for generating static pressure.
FIG. 16 is a cross-sectional view showing a state where the roller structure is functioning.
FIG. 17 is a cross-sectional view for explaining the structure and function of a side arm.
FIG. 18 is a perspective view showing an appearance of a general notebook computer.
FIG. 19 is a perspective view showing the appearance of a conventional disk device.
FIG. 20 is an exploded perspective view of a main part of a conventional disk device.
[Explanation of symbols]
A ... Drive mechanism B ... Eject / lock mechanism C ... Slider mechanism 1 ... Disc tray 1a ... Slit 1b ... · Notch 1c ··· Side arm 1d ··· Insertion hole 1e ··· Projection 1f ··· Window hole 1g ··· Bearing block 1h ··· Angle 1i ... Positioning boss 1j ... Locking protrusion 2 ... Turntable 3 ... Spindle motor 4 ... Head unit 5 ...・ Guide rail 5a ・ Micro unevenness 6 ・ ・ ・ ・ ・ ・ Seal material 7 ・ ・ ・ ・ ・ ・ Printed circuit board 8 ・ ・ ・ ・ ・ ・ Bezel 8 b ・ Through hole 9 ・ ・ ・ ・..Earth plate 10 ... Chassis case 11 ... Base chassis 12 ... Cover chassis 3 ... holding rail 14 ... short-circuit member 15 ... bottom cover 16 ... thread motor 17 ... gear unit 18 ... guide shift 19 ... Teeth member 19b ... Teeth 20 ... Screw shaft 20a ... Guide groove 21 ... Support member 23 ... Gear frame 24 ... Bearing Groove 25 ··· Cover plate 27 ··· Self-holding solenoid 28 ··· Release lever 29 ··· Lock lever 29a ··· Resin main body 29b ··· Steel plate mold material 29d · · · Inclined surface 29e · · · angle portion 30 · · · return lever 32 · · · return pin 33 · · · lock pin 35 · · · pop-out mechanism 38 · · · ..Roller 39 ... Roller 40 ... Holding plates 41 ----- slider 41b · · · · inclined surface 42 ..... torsion coil spring

Claims (1)

In a disk unit in which a disk tray loaded with a recording medium is moved forward / backward in a chassis case to load / unload, the ground plate for discharging static electricity generated in the bezel part is not attached to the bezel. And a disc device fixed on the front end surface of the disc tray .

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