JP4090466B2 - Optical disk device - Google Patents

Description

  The present invention relates to an optical disc apparatus, and more particularly to a slim type optical disc apparatus for mounting on a notebook personal computer characterized by a lock / release mechanism of a drawer.

  In general, an optical disk apparatus is provided with a drawer on which a disk drive mechanism for driving a disk is mounted, and the drawer is configured to be inserted into and removed from the optical disk apparatus main body by a lock / release mechanism. For example, a release mechanism is provided at the tip of the drawer in the discharge direction, and the drawer is discharged from the apparatus main body by pressing an eject button provided on the front surface of the optical disc apparatus, while the discharged drawer is manually operated by the user. When inserted into the main body, the drawer is held in a state of being accommodated in the apparatus main body.

  As an optical disk apparatus provided with such a lock / release mechanism, for example, a disk drive unit for driving a disk is mounted, and a drawer that can be inserted into and removed from the housing, and a lock section provided in either the housing or the drawer When the drawer is inserted into the housing, a lock lever that can move to a lock position that engages with the lock portion so that the drawer is held in the housing, and a suction that generates a force that positions the lock lever to the lock position And a biasing means for biasing the drawer in the direction of pulling out from the housing, and for biasing the lock lever so as to move from the lock position, and the lock lever is locked by the biasing force of the biasing means. It is known to have a lock release means that releases the lock by generating a force that resists the suction force of the suction means so that the drawer is discharged from the inside of the housing. That (for example, see Patent Document 1.).

In addition, a lock / release mechanism using a self-holding solenoid system can be easily and comfortably mounted in a small space in an optical disk device. For example, the lock / release mechanism is activated by applying a pulse voltage to the self-holding solenoid. In the disk device in which the disk loading unit is opened, the lock lever is interlocked with the movable piece of the self-holding solenoid and is engaged with the lock pin, and is self-held when the drawer is closed. 2. Description of the Related Art A disk device having a lock / release mechanism that includes a release spring that is energized to pull a movable piece of a type solenoid and de-energized when a drawer is opened has been proposed (for example, Patent Document 2). reference.).
JP 2000-137937 A JP 2003-77262 A

  In the conventional example shown in Patent Document 1, the shape and size of the lock lever is limited due to the relatively large number of parts, cost and man-hours, and layout restrictions due to the component configuration, and sufficient lock strength is achieved. There was a problem that it could not be realized.

  In addition, in a slim type optical disc device for laptop computers, if the laptop computer is impacted or dropped when it is carried or used, an excessive impact force is applied to the lock / release mechanism from the outside, and the lock / release mechanism is damaged. There was something to do. In the conventional example shown in Patent Document 2, no consideration has been given to such an external impact.

  The present invention has been proposed in order to solve the above-described problems, and by reducing the number of parts, the cost and man-hours are reduced, and the space obtained by the reduction in the number of parts is utilized to reduce the lock lever. The purpose is to give the shape and size freedom and to improve the impact strength and durability.

According to one aspect of the invention,
A drawer equipped with a disk drive mechanism and supported by a guide rail so as to be slidable with respect to the drive body,
A reset protrusion provided on the guide rail;
A lock lever pivotally supported on the pivotally said drawer at one end side, a locking portion for locking the drawer in the drive main body engaged with the drawer locking portion of the drive main body side to the other end , a solenoid engagement portion engaged with the movable piece of the self-hold solenoid to the side, is pressed to the reset protrusion of the guide rail when the drawer on the guide rail side enters into the drive body, wherein A lock lever formed integrally with the reset protrusion and the spring-like protrusion to be detached when the drawer is ejected from the drive body ;
When the drawer enters the drive main body, the spring-like protrusion of the lock lever is pressed by the reset protrusion of the guide rail to swing the lock lever and restrict it to a lockable position. The self-holding solenoid that swings the lock lever toward the guide rail, and
An optical disc apparatus characterized in that, by energization of the self-holding solenoid, the engagement portion of the lock lever and the drawer lock portion on the drive main body side are disengaged and the drawer is released from the drive main body. Is provided.

The locking portion of the lock lever has a spring property and can be deformed along the slope of the drawer lock portion on the drive body side.

Further, the lock lever is biased by the release spring having a small again biasing force than the holding force of the movable piece of the self-hold solenoid is preferable.

  According to the present invention, by reducing the number of parts, the cost and man-hours are reduced, and the space obtained by reducing the parts is utilized to give freedom to the shape and volume of the lock lever. Durability can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same portions are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a perspective view of the entire optical disc apparatus as seen from the back side. As shown in FIG. 1, a drawer 1 on which a disk drive mechanism M is mounted and a bottom plate 2 for protecting the bottom side of the drawer 1 are provided. The drawer 1 is slidable with respect to the bottom plate 2, so that guide rails 3, 3 that slidably support the drawer 1 are disposed on the left and right sides of the drawer 1. A lock / release mechanism is disposed in the vicinity of the front panel of the drawer 1, and a lock lever 4 that is a main part of the lock / release mechanism can be seen from the back side of the entire apparatus.

  2 and 3 are perspective views showing details of the lock / release mechanism. 2 shows a state where a part of the drawer is cut out and viewed from the front side, and FIG. 3 shows a state viewed from the back side.

The lock / release mechanism includes a lock lever 4 having a solenoid engaging protrusion 4a, a reset spring protrusion 4b and a lock spring protrusion 4c, a self-holding solenoid 5, a reset protrusion 3a provided on the guide rail 3 , a release spring 6, a drive It consists of a drawer lock projection 7 on the main body side .
The lock lever 4 is arranged side by side in the guide rail 3 at a corner near the front panel 9 side of the guide rail 3, rocking the guide rail 3 side and a self-hold solenoid 5 side by a pin 4d provided on the drawer 1 It is pivotally supported. Since the lock lever 4 has a spring property as a whole, for example, it is preferable to use a polyacetal resin molded product.
The self-holding solenoid 5 is equipped with a permanent magnet inside the solenoid, and maintains the attracted state of the movable iron core even if the power is turned off after the attracting. When returning, the recovery is performed by suction and a reverse pulse signal or a pulse signal to the return side coil. The attraction force is strong because of the assistance of the permanent magnet during attraction. Further, since no electric power is required at the time of adsorption, the temperature of the coil hardly increases. A release spring 6 is attached between the lock lever 4 and the drawer in a direction parallel to the movable iron core of the self-holding solenoid 5, and the lock lever 4 is attached to the suction direction by the self-holding solenoid 5 by the release spring 6 . It is energized. Incidentally, the biasing force of the release spring 6 is preferably set to be smaller than the holding force of the movable piece of the self-hold solenoid.

The lock lever 4 and the self-holding solenoid 5 are engaged by a solenoid engaging protrusion 4a. The solenoid engaging protrusion 4 a is formed integrally with the lock lever 4. Therefore, the lock lever 4 swings according to the operation of the self-holding solenoid 5.

A reset spring protrusion 4 b is formed at a position near the center of the lock lever 4 on the side facing the guide rail 3. The reset spring protrusion 4b has a belt-like body projecting in an arc from the side surface of the lock lever 4, and the tip of the belt-like body is a thicker (higher) umbrella.

A reset protrusion 3a is integrally formed on the guide rail 3 at a predetermined position in the slide range of the reset spring protrusion 4b when the drawer 1 is inserted into the drive body . By resetting spring projections 4b comes in contact with the resetting projections 3a, the lock lever 4 of the drawer 1 is swung to the suction direction.

A lock spring portion 4c is integrally formed at an end portion of the lock lever 4 on the front panel side, is formed at an end portion of the bottom plate 2 of the drive body , and engages with a drawer lock projection 7 having an inclined surface. 1 is held (locked) in the drive body.

  Next, the operation of the lock / release mechanism will be described with reference to FIGS. 4 (a) to 4 (f).

FIG. 4A shows a state in which the drawer 1 is ejected from the drive main body. From this position, the arrow direction head drawer 1 is pushed into the drive body . At this time, the lock lever 4 is urged to the reset position by the action of the self-holding solenoid 5 . The reset spring projections 4b of the reset projection 3a and the lock lever 4 of the guide rail 3 is in the remote position, not abutting.

In FIG. 4 (b), when the drawer 1 is advanced into the drive body , the reset spring protrusion 4b of the lock lever 4 is pressed by the reset protrusion 3a formed on the guide rail 3, and the elastic force of the spring Deform. At the same time, the lock lever 4 is swung clockwise (self-holding solenoid 5 side) in the drawing, and the solenoid core of the self-holding solenoid 5 engaged with the solenoid engaging protrusion 4a of the lock lever 4 becomes the solenoid. Adsorbed and regulated at a lockable position. Even if the power is turned off after the self-holding solenoid 5 is attracted, the position of the lock lever 4 is maintained by the action of retaining the attracting state of the movable iron core.

As shown in FIG. 4 (c), when the drawer 1 further enters the drive body , the lock spring portion 4c of the lock lever 4 is deformed along the slope of the drawer lock projection 7 on the drive body side, and the drawer lock Get over the protrusion 7.

As shown in FIG. 4D, the lock spring 4c of the lock lever 4 and the drawer lock projection 7 on the drive main body side are engaged, and the lock of the drawer 1 to the drive main body side is completed.

The example, eject button on the front panel 9 is pressed, when that will be discharged drawer 1 from the drive main body, as shown in FIG. 4 (e), followed by the drive main body side self-hold solenoid 5 f eject signal A pulse voltage is applied.

As shown in FIG. 4E, the self-holding solenoid 5 is energized by the pulse voltage, and the lock lever 4 swings counterclockwise by pushing the iron core toward the guide rail 3 side . As a result, the lock spring 4c of the lock lever 4 is out of engagement with the drawer lock projection 7 on the drive main body side, so that the drawer 1 can be freely discharged. Similarly, due to the action of the self-holding solenoid 5, the position after the rocking of the lock lever 4 is maintained.

The discharge progress of the drawer 1, in FIG. 4 (f), the by umbrella portion of the reset spring protrusions 4b of the lock lever 4 is moved along the inner wall of the guide rail 3 side reset projections 3a, while deforming the reset spring projection 4b The detachment from the reset protrusion 3a results in the ejected state shown in FIG. That is, in the direction of discharging the drawer 1, smooth discharge is performed without interference between the reset spring projection 4 b of the lock lever 4 and the reset projection 3 a on the guide rail 3 side.

  As described above, the drawer is locked and released by repeating the operations shown in FIGS. 4 (a) to 4 (f).

In the embodiment described above, the reset protrusion 3b is provided on the guide rail side, but the present invention is not limited to this.

  FIG. 5 is a perspective view of a lock / release mechanism according to another embodiment of the present invention as viewed from the front side. In the present embodiment, the reset protrusion 8 is formed integrally with the bottom plate 2. The reset protrusion 8 can be disposed inside the drive main body and at a desired position according to the configuration of the lock lever 4 on the drawer 1 side.

As described above, in the present embodiment, it is possible to save cost and space by reducing the number of parts and man-hours, and it is possible to improve assembly performance at the time of manufacturing, so that errors during assembly can be reduced. Reliability can be improved by reducing the number of parts. Further, the structure capable of urging the guide rail and the drawer at the same time can improve the rattling prevention effect. In particular, the effect of preventing vibration at high speed can be obtained, and noise can be reduced.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

It is the perspective view which looked at the whole optical disk device concerning the embodiment of the present invention from the back side. It is the perspective view which looked at the lock release mechanism of the drawer from the front side. It is the perspective view which looked at the lock release mechanism of the drawer from the back side. It is a figure for demonstrating the operation | movement of the lock | rock release mechanism of a drawer. It is a figure for demonstrating the operation | movement of the lock | rock release mechanism of a drawer. It is a figure for demonstrating the operation | movement of the lock | rock release mechanism of a drawer. It is a figure for demonstrating the operation | movement of the lock | rock release mechanism of a drawer. It is a figure for demonstrating the operation | movement of the lock | rock release mechanism of a drawer. It is a figure for demonstrating the operation | movement of the lock | rock release mechanism of a drawer. It is the perspective view which looked at the lock release mechanism concerning another embodiment of the present invention from the front side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Optical disk apparatus, 1 ... Drawer, 2 ... Bottom plate, 3 ... Guide rail, 3a ... Reset protrusion, 4 ... Lock lever, 4a ... Solenoid engagement protrusion, 4b ... Reset spring protrusion, 4c ... Lock spring protrusion, 4d ... Pin, 5 ... Self-holding solenoid, 6 ... Release spring, 7 ... Drawer lock protrusion, 9 ... Front panel .

Claims (5)

A drawer equipped with a disk drive mechanism and supported by a guide rail so as to be slidable with respect to the drive body,
A reset protrusion provided on the guide rail;
A lock lever pivotally supported on the pivotally said drawer at one end side, a locking portion for locking the drawer in the drive main body engaged with the drawer locking portion of the drive main body side to the other end , a solenoid engagement portion engaged with the movable piece of the self-hold solenoid to the side, is pressed to the reset protrusion of the guide rail when the drawer on the guide rail side enters into the drive body, wherein A lock lever formed integrally with the reset protrusion and the spring-like protrusion to be detached when the drawer is ejected from the drive body ;
When the drawer enters the drive body, the spring-like projection of the lock lever is pressed by the reset projection of the guide rail to swing the lock lever and restrict it to the lockable position. The self-holding solenoid that swings the lock lever toward the guide rail,
An optical disc apparatus characterized in that, by energization of the self-holding solenoid, the engagement portion of the lock lever and the drawer lock portion on the drive main body side are disengaged and the drawer is released from the drive main body. . 2. The optical disc apparatus according to claim 1, wherein the locking portion of the lock lever has a spring property and can be deformed along a slope of a drawer lock portion on the drive main body side . The optical disk apparatus according to claim 1 , wherein the lock lever is made of polyacetal resin. A drawer equipped with a disk drive mechanism and supported by a guide rail so as to be slidable with respect to the drive body,
A reset projection is formed, and a bottom plate for protecting the drawer;
A lock lever pivotally supported on the pivotally said drawer at one end side, a locking portion for locking the drawer in the drive main body engaged with the drawer locking portion of the drive main body side to the other end , a solenoid engagement portion engaged with the movable piece of the self-hold solenoid to the side, is pressed to the reset protrusion of the bottom plate when the drawer on the guide rail side enters into the drive body, wherein A lock lever formed integrally with the reset protrusion and the spring-like protrusion to be detached when the drawer is ejected from the drive body ;
When the drawer enters the drive main body, the spring-like protrusion of the lock lever is pressed by the reset protrusion of the bottom plate to swing the lock lever and restrict it to a lockable position. The self-holding solenoid that swings the lever toward the guide rail, and
An optical disc apparatus characterized in that, by energization of the self-holding solenoid, the engagement portion of the lock lever and the drawer lock portion on the drive main body side are disengaged and the drawer is released from the drive main body. . The locking lever is the self-holding type optical disk apparatus according to claim 1 or 4, wherein that it is biased by release spring having a small again biasing force than the holding force of the movable piece of the solenoid.