JP5873997B2 - Cover body mounting structure - Google Patents

Description

  The present disclosure relates to an attachment structure for a cover body, more specifically, an attachment structure for detachably attaching a cover body covering a predetermined area on a base member to the base member.

  2. Description of the Related Art As is well known, an optical pick-up for recording and / or reproducing information signals on an optical disc is mounted on an optical disc apparatus installed in a notebook personal computer (so-called notebook personal computer) or a Blu-ray disc (BD) player. A traverse device having a base member (traverse base) and a mechanism (traverse mechanism) for transferring the optical pickup in the radial direction of the optical disk on the traverse base is provided.

  Further, as such a traverse device, a cover body (traverse cover) that covers at least the traverse mechanism part including main parts such as a main shaft for transferring the optical pickup, a sub shaft, and a feed screw is provided, and the traverse cover is attached to the traverse base. A device that is detachably attached is generally well known (for example, see Patent Document 1).

  By providing such a traverse cover, it is possible to reliably prevent the user from inadvertently touching the main shaft, the sub shaft, the feed screw, etc., which are the main parts of the traverse device, and Further, it is possible to effectively suppress the lubricant such as grease applied to the main shaft, the sub shaft, or the feed screw from being scattered around and contaminating the optical disk or the like.

JP 2006-79752 A

  However, in the mounting structure in which the cover body that covers a predetermined area on the base member is detachably attached to the base member, the mounting space of the cover body is restricted, and the space for inserting and operating tools and the like used for the mounting / demounting work is secured. However, it may be difficult to attach / remove the cover body easily. In the case of the traverse device described above as an example, the installation space on the traverse base of the traverse cover that covers the traverse mechanism is restricted depending on the size, shape, or arrangement of the optical pickup and its transfer motor. As a result, there may be a situation where the traverse cover cannot be attached or detached using a tool or the like.

  The present disclosure has been made in view of such a technical problem. In an attachment structure in which a cover body that covers a predetermined region on a base member is detachably attached to the base member, the cover for the base member can be provided even in a relatively small installation space. The basic purpose is to enable easy attachment / detachment of the body.

  Therefore, the cover body mounting structure in the present disclosure is a cover body mounting structure in which a cover body covering a predetermined region on the base member is detachably attached to the base member, and the cover body includes the base member. An engagement base having an opening that can be engaged with a hook provided on the top, an elastic base that can be elastically deformed in a pressing direction with respect to the base member and a direction substantially perpendicular to the pressing direction, and is formed integrally with the engagement base. And the base member is placed in a position corresponding to the spring body when the opening is engaged with the hook portion according to the engaging operation of the engagement base. A guide portion for guiding in a predetermined direction is provided, and when the cover body is attached to the base member, the spring body is guided by the guide portion according to the engagement operation of the engagement base, Engaged with the opening the hook portion of the engaging base, the mounted state relative to the base member of the cover body by the biasing force of the spring member is maintained, that is obtained by it said.

  According to the mounting structure of the cover body in the present disclosure, the spring body formed integrally with the engaging base is elastically deformed in the pressing direction and in a substantially orthogonal direction by applying a force in the pressing direction to the base member to the cover body. Accordingly, the spring body is moved along the guide portion provided in the base member, and the opening provided in the engaging base body integrated with the spring body is provided on the base member. Can be engaged. That is, the cover body can be attached to the base member by a simple operation of simply applying a force in the pressing direction against the base member to the base member, and even when the mounting space is relatively limited, The cover body can be easily attached.

The overall perspective view which showed the traverse apparatus provided with the traverse cover which concerns on embodiment in this indication seeing from diagonally upward; An overall perspective view from obliquely above of the traverse device showing a state in which the traverse cover is removed; FIG. 7 is a diagram illustrating a state in which the traverse cover is attached to the traverse base in a state where the traverse mechanism is removed, and is an overall perspective view viewed from obliquely above the main shaft side of the traverse mechanism; FIG. 7 is a diagram illustrating a state in which the traverse cover is attached to the traverse base in a state where the traverse mechanism is removed, and is an overall perspective view seen from obliquely above on the countershaft side of the traverse mechanism; A partially enlarged perspective view showing a main part of the structure for attaching the traverse cover to the traverse base in a state before attachment; Explanatory drawing of the bracket part shown in the arrow Y6 direction in FIG. 5, and a leaf | plate spring; A part of a series of explanatory views for explaining the mounting operation of the traverse cover to the traverse base; A part of a series of explanatory views for explaining the mounting operation of the traverse cover to the traverse base; A part of a series of explanatory views for explaining the mounting operation of the traverse cover to the traverse base; A part of a series of explanatory views for explaining the mounting operation of the traverse cover to the traverse base; A part of a series of explanatory views for explaining the mounting operation of the traverse cover to the traverse base; A part of a series of explanatory views for explaining the mounting operation of the traverse cover to the traverse base; Part of a series of explanatory views for explaining an operation of attaching the traverse cover to a traverse base.

  The cover body mounting structure in the present disclosure can take the following modes based on the above-described configuration. That is, in the mounting structure of the cover body having the above configuration, when the cover body is removed from the base member, the engagement base is pushed toward the base member against the biasing force of the spring body, The engagement state of the opening portion of the engagement base with respect to the hook portion can be released.

  According to this structure, the engagement state with respect to the hook portion of the opening portion of the engagement base is released by a simple operation of pushing the engagement base against the biasing force of the spring body toward the base member. The cover body can be removed from the base member.

  In the above case, the spring body integrally formed with the engagement base and elastically deformable with respect to the pressing direction with respect to the base member and the direction substantially orthogonal to the pressing direction is formed from the engagement base to the base. It is preferable that the guide portion is formed of a plate material that extends while being inclined in the pressing direction with respect to the member, and the guide portion guides the side of the plate material that is relatively close to the tip while being inclined in a direction substantially perpendicular to the pressing direction.

  According to this configuration, the spring body that is elastically deformable with respect to the pressing direction with respect to the base member and the direction substantially orthogonal to the pressing direction and is formed integrally with the engagement base is configured by the plate material, thereby providing a simple structure. Thus, the spring body can be formed, and the spring body can be formed integrally with the engaging base with a simple structure.

  Further, in the above case, a plurality of hook portions are provided on the base member, and the cover body includes a plurality of openings that respectively engage with the hooks, and a plurality of these openings with respect to the hook portions. The engagement base, the spring body, and the guide portion may be provided for at least one of the engagement portions.

  According to this configuration, the plurality of hook portions are provided on the base member, and the cover body includes the plurality of openings that respectively engage with the hooks, so that the entire cover body can be more stably used as the base member. Can be installed.

  Furthermore, in the above case, the base member is a traverse base on which a traverse device including an optical pickup and a traverse mechanism unit that transports the optical pickup in the radial direction of the optical disc is mounted, and the cover body is It may be a traverse cover that covers the traverse mechanism including the main shaft, the sub shaft, and the feed screw for transferring the optical pickup.

  According to this configuration, the traverse cover that covers the traverse mechanism including the main shaft, the sub shaft, and the feed screw for transferring the optical pickup can be attached to / removed from the traverse base with a simple operation, and the installation space is reduced. It becomes possible to easily attach / remove the traverse cover to / from the traverse base even under relatively restricted conditions.

<Embodiment>
Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.
The inventors provide the accompanying drawings and the following description in order for those skilled in the art to fully understand the present disclosure, and are intended to limit the subject matter described in the claims. is not.

  In the following description, terms that mean a specific direction (for example, “up”, “down”, “left”, “right”, “front”, “rear”, and other terms including them, “clock” , “Counterclockwise direction”, “counterclockwise direction”) are used to facilitate understanding of the invention with reference to the drawings, and the present invention is limited by the meaning of these terms. Should not be construed.

  FIG. 1 is an overall perspective view showing a traverse device 1 provided with a traverse cover 20 according to an embodiment of the present disclosure as viewed obliquely from above. FIG. 2 is an overall perspective view of the traverse device 1 as viewed obliquely from above with the traverse cover 20 removed. Further, FIGS. 3 and 4 are views showing a state where the traverse cover 20 is attached to the traverse base 10 with the traverse mechanism removed, from an obliquely upper side on the main shaft 31 side of the traverse mechanism (FIG. 3). And it is the whole perspective view which looked at each from the diagonal upper part by the side of the subshaft 32 (FIG. 4).

  As shown in these drawings, the traverse device 1 according to the present embodiment includes a traverse base 10 formed in a substantially rectangular or square shape in plan view, and base support portions 10c (FIG. 3) at the four corners thereof. And a damper 10d formed of an elastic member (see FIGS. 1 and 2). The traverse base 10 is supported in a floating (up and down floating) state with respect to a housing (not shown) of the disk device via these four dampers 10d.

  In the traverse base 10, a turntable 3 that rotatably supports an optical disc (not shown), a spindle motor 4 that rotationally drives the turntable 3, and recording and / or reproduction of information signals with respect to the optical disc. An optical pickup 7 is provided. The optical pickup 7 includes, for example, two lenses 7a and 7b for BD and DVD, and these lenses are attached to a base member 6 (pickup base) so as to be vertically movable. An optical pickup 7 is mounted on the pickup base 6 to constitute a pickup unit 5.

  A transfer mechanism 30 (traverse mechanism portion) for transferring the pickup unit 5 (and hence the optical pickup 7) in the radial direction of the optical disc is disposed on the traverse base 10. The traverse base 10 and the pickup base 6 are made of synthetic resin, for example.

  The traverse mechanism 30 includes a main shaft 31 and a sub shaft 32 extending in parallel with each other on both sides of the turntable 3 and the pickup unit 5, and a drive shaft 33 extending in parallel with the outside of the main shaft 31. It has. The drive shaft 33 is supported on the traverse base 10 so as to be rotatable about the axis by a conventionally known support structure. The main shaft 31, the sub shaft 32, and the drive shaft 33 are all preferably made of metal. The portions near both ends of the main shaft 31 and the sub shaft 32 are supported with respect to the traverse base 10 by a conventionally known support structure.

A motor 35 for rotationally driving the drive shaft 33 is disposed on one end side of the drive shaft 33. The motor 35 is preferably a stepping motor, and its output side is connected to one end of the drive shaft 33. A male screw 33 s serving as a feed screw for transferring the optical pickup 7 is screwed around the outer periphery of the drive shaft 33.
The pickup base 6 is formed in a substantially rectangular shape in plan view, and is disposed between the main shaft 31 and the sub shaft 32. In the present specification, “rectangular” includes a case of “square” as one form thereof.

  As shown in FIG. 2, a guide member 6 g (slide guide) that is engaged with the sub shaft 32 from the side is integrally provided on a side portion of the pickup base 6 that is close to the sub shaft 32. The slide guide 6g has a lateral U-shaped groove, and the groove engages with the sub shaft 32 so as to be slidable (slidable). On the other hand, as will be described later, the drive shaft 33 and the driven member 8 that moves along the main shaft 31 are integrally coupled to the side portion of the pickup base 6 close to the main shaft 31 as described later. Has been.

  A guide member 8g (slide guide) having an annular hole portion through which the main shaft 31 is inserted is integrally provided on the side portion of the driven member 8. The two slide guides 8g are preferably provided in a pair of front and rear along the longitudinal direction of the main shaft 31, and the main shaft 31 is slidably inserted. Further, a nut piece 9 that protrudes laterally from between the pair of front and rear slide guides 8g, 8g is integrally provided on the side portion of the driven member 8. The nut piece 9 has a U-shaped vertical cross-sectional shape opened downward, and is engaged with the drive shaft 33 from above. A feed screw of the drive shaft 33 is formed on the inner surface of the U-shaped groove. The tooth part (not shown) engaged with 33s is provided.

  When the motor 35 is driven, the drive shaft 33 coupled to the motor output shaft rotates, and accordingly, the nut piece 9 having a tooth portion (not shown) engaged with the feed screw 33s of the drive shaft 33 is formed. (Accordingly, the driven member 8) moves along the axis of the drive shaft 33. As a result, the pickup base 6 (and thus the pickup unit 5 as a whole) is guided to the main shaft 31 via the slide guides 8g and 8g, and guided to the sub shaft 32 via the slide guide 6g. It is transported smoothly in the direction.

  As shown in FIGS. 1, 3, and 4, the traverse cover 20 includes a main shaft cover portion 21 that mainly covers the outer side and the upper side of the main shaft 31, and a sub shaft cover portion that mainly covers the outer side and the upper side of the sub shaft 32. 25 and a connecting cover portion 29 that connects one end portions (end portions close to the turntable 3) of the cover portions 21 and 25 to each other. The main shaft cover portion 21, the sub shaft cover portion 25, and the connection cover portion 29 (that is, the entire traverse cover 20) are integrally formed using, for example, a thin metal plate. Instead of this, they may be formed as separate bodies and joined together.

  In the following description, for the main shaft 31, the sub shaft 32, the drive shaft 33, the main shaft cover portion 21, the sub shaft cover portion 25, and the like, the “end portion close to the turntable 3” is referred to as “one end portion”. The “end far from the turntable 3” is referred to as the “other end”.

  The main shaft cover portion 21 covers the outer side of the main shaft 31 (that is, covers the main shaft 31 and the drive shaft 33 so as to partition between the main shaft 31 and the drive shaft 33), and extends substantially vertically inward from the upper end of the side wall portion 22. And an upper wall portion 23 formed so as to be bent, and the outer side and upper side of the main shaft 31 over a length from one end portion of the main shaft 31 to the front side (the front side of the motor 35) from the other end portion. Covering.

  The countershaft cover portion 25 includes a side wall portion 26 that covers the outer side of the subshaft 32 and an upper wall portion 27 that is formed to be bent inward substantially vertically from the upper end of the side wall portion 26. The outer side and the upper side of the half length of the auxiliary shaft 32 are covered from the one end portion of the auxiliary shaft 32 to the substantially intermediate portion from the other end portion. The outer side and upper side of the slide guide 6g with respect to the sub shaft 32 of the pickup base 6 are covered with the sub shaft cover portion 25.

  By providing such a traverse cover 20, the user may inadvertently touch the main shaft 31, the sub shaft 32, the feed screw 33 s of the drive shaft 33, etc., which are the main components of the traverse mechanism. It can be surely prevented. Further, it is possible to effectively prevent the lubricant such as grease applied to the main shaft 31, the sub shaft 32, or the feed screw 33s from being scattered around and contaminating the optical disk.

Next, an attachment structure for detachably attaching the traverse cover 20 to the traverse base 10 will be described.
As shown in FIGS. 3 and 4, in order to attach the traverse cover 20 to a plurality of predetermined positions (for example, four places in the present embodiment) of the traverse base 10, Hook portions 11f to 14f are provided.

  The first hook portion 11 f is for locking the vicinity of one end portion of the main shaft cover portion 21, and includes, for example, an outer portion of the shaft support member 11 that supports the vicinity of one end portion of the main shaft 31. The second hook portion 12f is for locking the vicinity of the other end portion of the main shaft cover portion 21, and is, for example, an outer portion of the shaft support member 12 that supports a midway portion near the other end side of the main shaft 31. It is configured.

  Further, the third hook portion 13f is for locking the vicinity of one end portion of the auxiliary shaft cover portion 25. For example, the third hook portion 13f includes an outer portion of the shaft support member 13 that supports the vicinity of one end portion of the auxiliary shaft 32. Yes. Furthermore, the fourth hook portion 14f is for locking the vicinity of the other end portion of the countershaft cover portion 25. For example, the fourth hook portion 14f corresponds to a length approximately half of the subshaft 32 from one end portion of the subshaft 32. It is formed in the outer surface of the vertical wall part 14 formed in the location.

Corresponding to the first to fourth hook portions 11f to 14f, the traverse cover 20 is formed with first to fourth openings 20a to 20d for engaging the hook portions 11f to 14f.
The first opening 20 a is for engaging the first hook portion 11 f and is formed in the side wall portion 22 in the vicinity of one end portion of the spindle cover portion 21. The second opening 20b is for engaging the second hook portion 12f, and is formed in the side wall portion 22 near the other end of the spindle cover portion 21.

Further, the third opening portion 20 c is for engaging the third hook portion 13 f and is formed in the side wall portion 26 in the vicinity of one end portion of the auxiliary shaft cover portion 25. Furthermore, the fourth opening 20 d is for engaging the fourth hook portion 14 f and is formed in the side wall portion 26 in the vicinity of the other end portion of the countershaft cover portion 25.
The first, third and fourth openings 20a, 20c and 20d are all formed in a rectangular shape when viewed from the front. The configuration of the second opening 20b will be described in detail below.

FIG. 5 is a partially enlarged perspective view showing the configuration of the second hook portion 12f and the second opening portion 20b as the main parts of the structure for attaching the traverse cover 20 to the traverse base 10 in a state before attachment.
As shown in this figure, an engagement base 41 having a second opening 20b that can be engaged with the second hook portion 12f is formed on the outer surface of the other end portion of the spindle cover portion 21. The engaging base 41 has a connecting portion 42 projecting outward from the side wall portion 22 substantially vertically (substantially parallel to the upper wall portion 23), and substantially perpendicular to the connecting portion 42 (substantially parallel to the side wall portion 22). ) An engagement main body 43 projecting downward, and a spring holding section 44 projecting inward from the engagement main body 43 approximately vertically (also substantially perpendicular to the connecting portion 42).

  The connecting portion 42, the engagement main body portion 43, and the spring holding portion 44 (that is, the engagement base 41) are preferably formed of a thin metal plate and are formed integrally with the spindle cover portion 21. Instead, the engaging base 41 may be manufactured separately and joined to the spindle cover portion 21.

  The second opening 20b is formed across the engagement main body 43 and the spring holding portion 44, but most of the second opening 20b is formed in the engagement main body 43, and only the remaining part is the spring holding portion 44. It depends on. A bracket portion 45 is formed at the lower end portion of the spring holding portion 44 so as to protrude from the spring holding portion 44 substantially vertically (substantially parallel to the engagement main body portion 43). And the base end side of the plate-shaped spring body 46 (plate spring) is integrally hold | maintained at the lower end part of this bracket part 45. As shown in FIG. The leaf spring 46 is formed so as to protrude outward from the lower end portion of the bracket portion 45 substantially vertically.

  The bracket portion 45 and the leaf spring 46 are preferably formed of a thin metal plate and are formed integrally with the engagement base body 41. Instead, the bracket portion 45 and / or the leaf spring 46 may be manufactured separately and joined to the engagement base 41.

  FIG. 6 is an explanatory diagram of the bracket portion 45 and the leaf spring 46 as seen from the direction of the arrow Y6 in FIG. As can be clearly understood from this drawing, the leaf spring 46 is inclined obliquely downward with an inclination angle α with respect to the surface L1 including the lower end surface of the engaging base 41 (therefore, the lower end surface of the spring holding portion 44) ( That is, it extends (inclined in the pressing direction with respect to the traverse base 10).

  Accordingly, when the engagement base 41 is pushed down by pushing down the spindle cover portion 21, first, a portion of the leaf spring 46 that is relatively close to the tip contacts the traverse base 10, and thereafter, the amount by which the engagement base 41 is pushed down. Accordingly, the leaf spring 46 is elastically deformed and an upward biasing force is generated.

  Further, as shown in FIG. 5, when the engaging base 41 is pushed down, a portion of the leaf spring 46 of the traverse base 10 that is relatively close to the tip is inclined inwardly downward (that is, A guide portion 16 is provided for guiding (while tilting in a direction substantially perpendicular to the pressing direction with respect to the traverse base 10). The guide portion 16 is configured so that a part of the traverse base 10 is raised upward and obliquely upward with an inclination angle β (see FIG. 7 described later).

  Accordingly, when the portion of the leaf spring 46 that is relatively close to the tip contacts the guide portion 16 when the engagement base 41 is pushed down, the leaf spring 46 is then moved according to the amount by which the engagement base 41 is pushed down. An outward biasing force is generated due to elastic deformation.

An engaging operation for engaging the second opening 20b of the engaging base 41 configured as described above with the second hook 12f will be described below with reference to a series of explanatory diagrams of FIGS.
FIG. 7 shows an initial state of a mounting process in which the traverse cover 20 is mounted on the traverse base 10. In this initial state, the first to fourth openings 20 a to 20 d of the traverse cover 20 are formed on the traverse base 10. The traverse cover 20 is held above the traverse base 10 in a positioning state corresponding to each of the first to fourth hook portions 11f to 14f.

  When the engaging base body 41 is pushed down in the direction (downward) indicated by the arrow Ya from the initial state of FIG. 7, as shown in FIG. 8, the ridge line 43r on the inner surface of the lower end of the engaging main body 43 becomes the second hook. It abuts on the inclined surface 12k on the upper outside of the portion 12f. Then, since the ridge line 43r of the engagement main body portion 43 moves along the inclined surface 12k of the second hook portion 12f, the engagement base body 41 is arranged so that the ridge line 43r is along the direction indicated by the arrow Yb. It is pushed down while tilting.

  Then, after the ridgeline 43r of the engagement main body 43 passes the inclined surface 12k of the second hook portion 12f, as shown in FIG. 9, the inner surface of the engagement main body portion 43 is substantially vertical to the second hook 12f. Guided by the outer surface 12j, it is pushed down while tilting along the direction indicated by the arrow Yc. Thereafter, in the middle of the engagement of the second opening 20b of the engagement base 41 with the engagement groove 12g of the second hook 12f, the portion of the leaf spring 46 that is relatively close to the tip is the inclined guide of the guide 16 described above. It begins to contact surface 16k.

  When the engagement base 41 is further pushed down from the state shown in FIG. 9, as shown in FIG. 10, the portion near the distal end of the leaf spring 46 abuts against the inclined guide surface 16 k of the guide portion 16 and faces inward ( By being guided obliquely downward in the right direction in FIG. 10, the leaf spring 46 is elastically deformed inward (in the direction of arrow Yd in FIG. 10) in accordance with the amount by which the engagement base body 41 is pushed down.

  The engagement base 41 is further pushed down from the state shown in FIG. 10, and as shown in FIG. 11, the lower end surface 20p of the second opening 20b of the engagement base 41 is positioned above the opening of the engagement groove 12g of the second hook 12f. It is flush with the tip surface of the provided protrusion 12p. At this time, the leaf spring 46 is guided inward by the inclined guide surface 16k of the guide portion 16 and moves inward (in the direction of arrow Yd in FIG. 10), and accordingly, the lower portion of the engagement base 41 also moves in the same direction. To do. At this time, the leaf spring 46 receives a biasing reaction force (in the direction of the arrow Ye in FIG. 10) from the guide portion 16 in a substantially upward direction.

  From the state shown in FIG. 11, the engagement base 41 is further pushed down by a slight amount, and is rotated by a slight amount in the counterclockwise direction in FIG. The lower end surface 20p of the second opening 20b of the base body 41 gets over the protrusion 12p at the top of the opening of the engagement groove 12g of the second hook 12f and is positioned inward of the protrusion 12p.

  At this time, when the pressing force that pushes down the engaging base 41 is released, the engaging base 41 is pushed upward by the substantially upward biasing reaction force of the leaf spring 46. As shown in FIG. The lower end surface 20p of the second opening 20b is received by the base portion of the protrusion 12p of the engagement groove 12g of the second hook 12f, and the engagement base 41 having the second opening 20b (therefore, the spindle cover portion). 21) is locked by the second hook 12f, and the mounting operation of the traverse cover 20 to the traverse base 10 is completed.

  At this time, since the engagement base 41 is biased upward by the elastic action of the leaf spring 46, the spindle cover portion 21 is reliably locked to the second hook 12f, and this locked state is stable. Maintained. At this time, the protrusion 12p of the engagement groove 12g of the second hook 12f has a lower end surface 20p of the second opening 20b of the engagement base 41 by a height corresponding to the protrusion height (projection amount Dp). Protruding from.

  Further, the leaf spring 46 has a shape and size of each part and a spring so that the amount of push-down exceeding the protruding amount Dp can be secured from the mounted state of the traverse cover 20 with respect to the traverse base 10 shown in FIG. Characteristics etc. are set.

  When the traverse cover 20 mounted as described above is removed from the traverse base 10, the engaging base 41 of the spindle cover portion 21 is pushed downward by an amount sufficient to exceed the protruding amount Dp, and then FIG. The engagement base 41 is moved from the state shown in FIG. 11 to the state shown in FIG. 11 and the push-down force is released, so that the engagement base 41 (and therefore the spindle cover portion 21) can be easily connected to the second hook. The locked state by 12f is released and the traverse base 20 of the traverse cover 20 can be removed.

  As described above, according to the present embodiment, a force in the pressing direction against the traverse base 10 is applied to the main shaft cover portion 21 of the traverse cover 20, and the engagement base body 41 provided on the main shaft cover portion 21 is moved in the same direction. By pushing down, the leaf spring 46 formed integrally with the engagement base body 41 can be elastically deformed in the pressing direction and in a substantially orthogonal direction. As a result, the leaf spring 46 is moved along the guide portion 16 provided in the traverse base 10, and the second opening 20 b provided in the engagement base 41 integrated with the leaf spring 46 is provided on the traverse base 10. The two hooks 12f can be engaged. That is, the spindle cover portion 21 can be attached to the traverse base 10 by a simple operation of simply applying a force in the pressing direction to the traverse base 10 to the spindle cover portion 21, and the installation space is relatively limited. However, the traverse cover 20 can be easily attached to the traverse base 10.

  When the traverse cover 20 is removed from the traverse base 10, the engagement base 41 is pushed toward the traverse base 10 against the urging force of the leaf spring 46 via the spindle cover portion 21. The engagement state of the second opening 20b of the composite base 41 with respect to the second hook 12f is released. That is, the second hook 12f of the second opening 20b of the engagement base 41 can be obtained by simply pushing the engagement base 41 of the spindle cover 21 toward the traverse base 10 against the biasing force of the leaf spring 46. The traversing cover 20 can be removed from the traverse base 10 by releasing the engaged state with respect to.

  Further, in the present embodiment, the spring body 46 that is elastically deformable in the pressing direction with respect to the traverse base 10 and the direction substantially orthogonal to the pressing direction and is integrally formed with the engaging base 41 is provided from the engaging base 41 to the above-mentioned. The spring body 46 is configured with a simple structure and the spring body 46 is integrated with the engagement base body 41 with a simple structure because the plate body (plate spring) 46 extends while being inclined in the pressing direction with respect to the base member. Can be formed. In addition, it is also possible to perform the same action using a spring body of another form different from the leaf spring.

  In the present embodiment, a plurality of (four) hooks 11f, 12f, 13f, and 14f are provided on the traverse base 10, and the traverse cover 20 is engaged with the hook hooks 11f, 12f, 13f, and 14f, respectively. By providing a plurality of (four) openings 20a, 20b, 20c, and 20d, the entire traverse cover 20 can be mounted on the traverse base 10 more stably. In this case, the engaging base 41 integrally formed with the leaf spring 46 and the guide portion 16 for guiding the leaf spring 46 may be provided at a plurality of locations.

  Furthermore, the above description is for the case where the traverse cover 20 that covers the traverse mechanism including the main shaft 31, the sub shaft 32, and the drive shaft 33 for transferring the optical pickup 7 is detachably attached to the traverse base 10. However, the present disclosure is not limited to such a case, and can be effectively applied to other cases in which a cover body that covers a predetermined region on the base member is detachably attached to the base member. .

  As described above, the embodiments have been described as examples of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can also be applied to embodiments in which changes, replacements, additions, omissions, and the like have been made as appropriate. Moreover, it is also possible to combine each component demonstrated by the above-mentioned embodiment into a new embodiment.

Moreover, in the above description, embodiment was described as an illustration of the technique in this indication, and the attached drawing and detailed description were provided for it. Accordingly, among the components described in the accompanying drawings and the detailed description, not only the components essential for solving the problem, but also the components not essential for solving the problem in order to illustrate the above technique. May also be included. Therefore, it should not be immediately recognized that these non-essential components are essential as those non-essential components are described in the accompanying drawings and detailed description.
Moreover, since the above-mentioned embodiment is for demonstrating the technique in this indication, a various change, substitution, addition, abbreviation, etc. can be performed in a claim or its equivalent range.

  The present disclosure specifically describes a traverse cover that covers, for example, a traverse mechanism on a traverse base on which a traverse device is mounted, as a mounting structure in which a cover body that covers a predetermined region on a base member is detachably attached to the base member. Can be effectively used as an attachment structure that is detachably attached to the base member.

DESCRIPTION OF SYMBOLS 1 Traverse apparatus 5 Pickup unit 6 Pickup base 7 Optical pickup 10 Traverse base 11f 1st hook 12f 2nd hook 13f 3rd hook 14f 4th hook 16 Guide part 16k Inclined guide surface 20 Traverse cover 20a 1st opening part 20b 2nd opening part 20c 3rd opening part 20d 4th opening part 21 Main shaft cover part 25 Sub shaft cover part 29 Connection cover part 30 Traverse mechanism part 31 Main shaft 32 Sub shaft 33 Drive shaft 35 Motor 41 Engagement base 46 Leaf spring

Claims (5)

A cover body mounting structure for removably attaching a cover body covering a predetermined region on the base member to the base member,
The cover body is elastically deformable with respect to an engagement base having an opening engageable with a hook portion provided on the base member, a pressing direction with respect to the base member, and a direction substantially orthogonal to the pressing direction. A spring body integrally formed with the engagement base;
The base member has a guide portion that guides the spring body in a predetermined direction according to the engagement operation of the engagement base at a position corresponding to the spring body when the opening is engaged with the hook portion. Has
When the cover body is mounted on the base member, the spring body is guided by the guide portion according to the engagement operation of the engagement base, and the opening portion of the engagement base is connected to the hook portion. Engage,
The mounting state of the cover body on the base member is maintained by the biasing force of the spring body.
A cover mounting structure characterized by that.   When removing the cover body from the base member, the engagement base is pushed against the biasing force of the spring body toward the base member, so that the opening of the engagement base with respect to the hook portion is pressed. The cover mounting structure according to claim 1, wherein the engagement state is released. The spring body is composed of a plate material that extends while inclining in a pressing direction from the engagement base to the base member,
The guide portion guides the plate material while being inclined in a direction substantially orthogonal to the pressing direction on the side relatively close to the tip.
The cover body mounting structure according to claim 1, wherein the cover body has a mounting structure. A plurality of hook portions are provided on the base member, and the cover body includes a plurality of openings that respectively engage with the hooks.
The engagement base, the spring body, and the guide portion are provided for at least one of the plurality of engagement portions of the openings with respect to the hook portion.
The cover body mounting structure according to claim 1, wherein the cover body has a mounting structure. The base member is a traverse base on which a traverse device including an optical pickup and a traverse mechanism that transports the optical pickup in the radial direction of the optical disc is mounted;
The cover body is a traverse cover that covers the traverse mechanism including a main shaft, a sub shaft, and a feed screw for transferring an optical pickup.
The cover mounting structure according to any one of claims 1 to 4, wherein the cover body has a mounting structure.

Images