JP2006190352A - Optical disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk apparatus which unnecessitates an interposition for transmitting eject-force, in which the number of assembly processes is reduced, and a space is saved. <P>SOLUTION: An energizing force for a drawer is given by an eject-spring in a guide rail in which the drawer in which a disk drive mechanism is mounted is supported slidably, the guide rail presses a cover member covering the drawer and the drawer is ejected from a drive case. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an optical disc apparatus, and more particularly, to a slim type optical disc apparatus mounted on a notebook computer having a feature of a drawer eject mechanism.

  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 an eject mechanism. For example, an eject mechanism is provided at the tip of the drawer in the ejection direction, and the drawer is ejected from the apparatus body by pressing an eject button provided on the front surface of the optical disc apparatus, while the ejected drawer is manually operated by the user. When inserted into the main body, the drawer is held in a state of being housed in the apparatus main body (see, for example, Patent Document 1).

  As shown in FIGS. 7 to 9, for example, this eject mechanism is provided with an eject pin 22 that is slidably supported on a drawer 21, or by urging a slider or the like in the drawer depth direction by an eject spring 23, and when the drawer is locked. The drawer 21 is pushed by a bottom plate back wall 24 a provided on the bottom plate 24 for protecting the plate 21, and the drawer 21 is discharged by a repulsive force stored in the eject spring 23.

Further, an interposition member for transmitting the force required for ejection may be provided on the bottom plate side 24 of the optical disc apparatus main body 20.
JP 2000-137937 A

  In the conventional structure, an eject pin, a structure for guiding it, an assembling man-hour, and a space for laying out the eject pin are necessary as inclusions for transmitting the ejecting force, which has been an obstacle to cost and space saving. Further, it is necessary to add another member (a leaf spring or the like) in order to remove the drawer and guide rail in the locked state.

  The present invention has been proposed in order to solve the above-described problems, and an object of the present invention is to eliminate the need for inclusions for transmitting the force required for ejection, thereby reducing the number of assembly steps and saving space.

  According to one aspect of the present invention, a drawer equipped with a disk drive mechanism, a drive housing, a guide rail that slidably supports the drawer with respect to the drive housing, and a gap between the guide rail and the drawer And an eject spring that stores a repulsive force when the drawer is stored in the drive housing, and the eject spring that stores the discharge force of the drawer from the drive housing when stored in the drawer An optical disc device is provided that is obtained by releasing the repulsive force of the optical disc.

  Further, according to another aspect of the present invention, an urging force for the drawer is applied by an eject spring to a guide rail that slidably supports a drawer mounted with a disk drive mechanism with respect to a drive housing, A guide rail presses a cover member that covers the drawer from the back side so that the drawer is ejected from the drive housing, and the cover member There is provided an optical disc apparatus characterized in that a component in the lateral pressure direction is generated at a portion that receives an ejecting urging force, and a lateral pressure is applied to the drawer and the guide rail.

  According to the present invention, an inclusion for transmitting the force required for ejection is not required, and the number of assembling steps can be reduced and the space can be saved.

  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 viewed from the front side, and FIG. 2 is a perspective view of the entire optical disc apparatus viewed 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 and shielding 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.

  FIG. 3 is a perspective view showing details of the spring mounting portion, and FIG. 4 is a perspective view showing details of the side pressure acting portion. As shown in FIGS. 2 and 3, hooks are formed on the guide rail 3 on the lock side and the drawer 1 for locking the drawer 1 to the bottom plate 2, respectively, between the guide rail side hook 3a and the drawer side hook 1a. The eject spring 4 is suspended on the side. The guide rail 3 on the lock side is mutually restricted by a stopper (not shown) provided on the upper side in FIG. 3, and the drawer 1 is regulated by a stopper (not shown) provided on the lower side in FIG. ing. Further, the lock-side guide rail 3 is regulated so as to protrude from the drawer 1 by a desired dimension.

  As shown in FIG. 4, a side pressure protrusion 5 for applying a side pressure is arranged at the end of the guide rail 3 on the lock side. The side pressure projection 5 is made of, for example, a resin spring made of polyacetal resin in order to provide springiness or the like. A side pressure transmission projection 5 a for transmitting side pressure is formed at the end of the side pressure projection 5. A side pressure receiving portion 1 b that receives a side pressure is formed at the rear end portion of the drawer 1, and a biasing force receiving wall 2 b that receives a biasing force is formed at a corner of the back wall portion 2 a of the bottom plate 2. The side pressure receiving portion 1b is preferably formed integrally with the drawer 1, and the biasing force receiving wall 2b is preferably formed integrally with the bottom plate 2. A side pressure acts between the drawer 1 and the guide rail 3 by utilizing the eject biasing force due to mutual interference at the drawer insertion completion position. Such side pressure suppresses rattling between the drawer 1 and the guide rail 3.

  Next, the force generated when the drawer enters and exits the optical disc apparatus main body will be described with reference to the drawings.

  FIGS. 5A, 5B, and 5C are explanatory views showing the behavior of the eject spring 4 when the drawer enters.

  In the state shown in FIG. 5 (a), the eject spring 4 is in an initial biased state in which it is suspended, and the drawer 1 and the lock-side guide rail 3 spring-biased on the drawer 1 are integrated into the device. Enter the main body.

  Next, in the state shown in FIG. 5B, the back end of the lock-side guide rail 3 abuts against the bottom plate back wall portion 2a and slides with respect to the drawer 1, and the eject spring 4 is in the process of extension.

  In the state shown in FIG. 5C, insertion of the drawer 1 into the optical disc apparatus main body is completed, and the drawer 1 is locked and held. The restoring force due to the maximum extension of the eject spring 4 is stored as the drawer discharge force. This is released when the drawer 1 is unlocked, and the drawer 1 is ejected from the optical disc apparatus main body.

  Next, the side pressure generation of the drawer will be described. 6 (a) and 6 (b) are explanatory diagrams showing how the drawer side pressure is generated. FIG. 6A corresponds to FIG. 5B, and the eject spring 4 is not shown. As shown in FIG. 6A, the front end of the guide rail is restricted by the rail contact portion 2c of the bottom plate back wall portion 2a, and the side pressure receiving portion 1b on the drawer side and the side pressure transmission protrusion 5a on the guide rail side reach a nearby position. ing. Further, the urging force receiving wall 2b formed on the bottom plate side is also close but not acting.

  Further, at the position shown in FIG. 6B where the drawer 1 has entered the optical disc apparatus main body, the side pressure receiving portion 1a on the drawer side presses the side pressure transmitting projection 5a on the guide rail 3 side, and the side pressure protruding portion 5 is deformed to slide outward. Then, the guide rail 3 on the lock side is pushed forward by being guided by the urging force receiving wall 2b on the bottom plate side. In that case, it leaves | separates from the rail contact part 2c of the above-mentioned bottom-plate back wall part 2a, and all the urging | biasing force will act on the urging | biasing force receiving wall 2b, According to the slope angle of the urging | biasing force receiving wall 2b, a side pressure direction As a result, the rattling of the drawer 1 and the guide rail 3 (side pressure) is generated.

  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 rattling prevention effect can be improved by the configuration in which the rail and the drawer can be energized at the same time. 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 components 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 front side. 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 a perspective view which shows the detail of the spring attachment part of the optical disk apparatus based on embodiment of this invention. It is a perspective view which shows the detail of the side pressure action part of the optical disk apparatus based on another embodiment of this invention. It is explanatory drawing which shows the behavior of the eject spring at the time of drawer entrance. It is explanatory drawing which shows the behavior of the eject spring at the time of drawer entrance. It is explanatory drawing which shows the behavior of the eject spring at the time of drawer entrance. It is explanatory drawing which shows the mode of generation | occurrence | production of drawer side pressure. It is explanatory drawing which shows the mode of generation | occurrence | production of drawer side pressure. It is the perspective view which looked at the conventional optical disk device whole from the front side. It is the perspective view which looked at the conventional optical disk device whole from the back side. It is a perspective view which shows the ejection mechanism of the conventional optical disk apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Optical disk apparatus, 1 ... Drawer, 1a ... Drawer side hook, 1b ... Side pressure receiving part, 2 ... Bottom plate, 2a ... Back wall part, 2b ... Energizing force receiver Wall, 2c ... rail contact portion, 3 ... guide rail, 3a ... guide rail side hook, 4 ... eject spring, 5 ... side pressure projection, 5a ... side pressure transmission projection.

Claims (4)

  A drawer having a disk drive mechanism, a drive housing, a guide rail that slidably supports the drawer with respect to the drive housing, and suspended between the guide rail and the drawer, the drive of the drawer An eject spring that stores a repulsive force when housed in the housing, and a discharge force of the drawer from the drive housing is obtained by releasing the repulsive force of the eject spring stored when the drawer is housed An optical disc apparatus characterized by the above.   The guide rail that supports the drawer mounted with the disk drive mechanism slidably with respect to the drive housing is given an urging force to the drawer by an eject spring, and the guide rail presses the cover member that covers the drawer from the back side. Then, the drawer is ejected from the drive housing.   Generating a partial force in a lateral pressure direction at a position where the cover member receives the ejection biasing force at a drive housing insertion completion position of the drawer mounted with the disk drive mechanism, and applying a lateral pressure to the drawer and the guide rail. 3. The optical disk device according to claim 2, wherein   The guide rail end portion is provided with a protrusion for transmitting side pressure, and a side pressure member for applying side pressure is integrally formed, and the drawer end portion is integrally formed with a side pressure receiving portion for receiving the side pressure, 4. The optical disk apparatus according to claim 3, wherein the cover member is integrally formed with a portion that receives a biasing force.

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