JP2004362681A - Optical pick-up device and pressing member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize an optical pickup device and simplify assembly, and to provide a pressing member that can reduce manufacturing cost and that has a plurality of functions. <P>SOLUTION: For elastically fitting one portion of components, such as a light source 3 and an optical component 4 to a housing 2 of the optical pickup device 1, the pressing member 8 that has a plurality of press sections that can be elastically deformed one another and is formed in a single piece is used, and is arranged and assembled so that each press section elastically comes into contact with the components. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an optical pickup device and a pressing member, and more particularly, to an optical pickup device and a pressing member for recording, reproducing, and erasing information on a recording medium such as a compact disk and a digital versatile disk.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an optical pickup device for recording, reproducing, and erasing information on a recording medium such as a compact disk (abbreviation: CD: Compact Disk) and a digital versatile disk (abbreviation: DVD: Digital Versatile Disk) has been put to practical use. The optical pickup device has, for example, a light source that emits light to a recording medium, a collimating lens, a rising mirror, an objective lens, and an objective lens driving mechanism. This optical pickup device is further mounted with a flexible substrate or the like.
[0003]
The optical pickup device is provided with a plurality of leaf spring pieces for fixing a plurality of optical components, such as the above-described collimator lens and a rising mirror, to the optical pickup device body. In the optical pickup device, a leaf spring piece for fixing a flexible substrate to the optical pickup device main body, a leaf spring piece for skew adjustment, and a leaf spring piece for shielding high-frequency noise from the outside function. (Patent Documents 1 and 2).
[0004]
[Patent Document 1]
JP-A-11-312332
[Patent Document 2]
JP 2000-285475 A
[0005]
[Problems to be solved by the invention]
In the prior arts described in Patent Literatures 1 and 2, since a leaf spring piece is provided for each function in the optical pickup device main body, not only the number of parts is increased, but also the assembling of the optical pickup device becomes difficult, but also the manufacturing is made. The cost increases. As the number of parts increases, it becomes difficult to reduce the size of the optical pickup device. Here, it is also conceivable that a plurality of functions are shared by one leaf spring piece, for example. However, in a configuration in which a single leaf spring piece also serves a plurality of functions, when assembling the leaf spring piece into the optical pickup device main body, for example, each pressing portion of the leaf spring piece is applied to a plurality of locations of the optical pickup device main body. It is necessary to be careful and assemble at the same time so as not to cause plastic deformation. Therefore, also in this case, it becomes difficult to assemble the optical pickup device.
[0006]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an optical pickup device and a pressing member capable of simplifying the assembly, reducing the size, and reducing the manufacturing cost.
[0007]
[Means for Solving the Problems]
The present invention according to claim 1 is a pressing member in which a plurality of resiliently deformable pressing portions are integrally formed,
A pressing member, which is mounted on the pressing target and is configured to resiliently press a predetermined position of the pressing target by each pressing portion.
[0008]
According to the present invention, the pressing member is formed integrally with a plurality of resiliently deformable pressing portions. The pressing member is mounted on the pressing object, and resiliently presses a predetermined position of the pressing object by each pressing portion. As described above, since the pressing member is formed integrally with the plurality of resiliently deformable pressing portions, the number of components can be reduced as compared with the conventional one in which a plurality of leaf spring pieces are combined for each function. As a result, the size of the pressing member can be reduced.
[0009]
In addition, since the pressing member is mounted on the pressing object and the predetermined position of the pressing object is resiliently pressed by each pressing portion, the mounting itself of the pressing member on the pressing object can be simplified. For example, there is no need to pay attention to the assembling work so that each pressing portion is not plastically deformed. Therefore, the cycle time can be reduced, and the manufacturing cost can be reduced.
[0010]
The present invention according to claim 2 is a base that can be elastically deformed and has both ends formed so as to be able to be locked to an object to be pressed. At one end, the base is locked to the object to be pressed by removing the external force, and the other end is locked to the object to be pressed by the elastic recovery force,
Each of the pressing portions is formed so as to protrude from the base.
[0011]
According to the invention, the pressing member further has a base, and each pressing portion is formed to protrude from the base. The base is elastically deformable, and both ends thereof are formed so as to be able to be locked to the object to be pressed. An external force is applied to the base to elastically deform the base. In this state, one end is locked to the object to be pressed, and the external force is removed, whereby the other end is locked to the object to be pressed by the elastic recovery force. By applying and removing the external force to and from the base as described above, both ends of the base can be easily and reliably locked to the object to be pressed. In this manner, the mounting of the pressing member on the pressing object can be easily realized.
[0012]
According to a third aspect of the present invention, there is provided an optical pickup device including a plurality of components provided on a housing, and capable of executing at least one of recording, reproducing, and erasing information on a recording medium. hand,
Having a pressing member attached to the housing,
The pressing member is an optical pickup device in which a plurality of resiliently deformable pressing portions are integrally formed, and each pressing portion is resiliently brought into contact with some component parts.
[0013]
According to the present invention, the optical pickup device includes a plurality of components provided in a housing. The optical pickup device can execute at least one of recording, reproducing, and erasing information on a recording medium. A pressing member is mounted on the housing. In this pressing member, a plurality of resiliently deformable pressing portions are integrally formed, and each pressing portion resiliently comes into contact with some component parts.
[0014]
As described above, since the pressing member is formed integrally with the plurality of resiliently deformable pressing portions, the number of components can be reduced as compared with the conventional one in which a plurality of leaf spring pieces are combined for each function. In addition, the size of the optical pickup device can be reduced. In addition, since the pressing member is mounted on the pressing object, and each pressing portion is resiliently brought into contact with some of the components, the mounting itself of the pressing member on the pressing object can be simplified. For example, there is no need to pay attention to the assembling work so that each pressing portion is not plastically deformed. Therefore, the cycle time required for assembly can be shortened, and the manufacturing cost can be reduced.
[0015]
The present invention described in claim 4 is characterized in that each pressing portion resiliently abuts a component, thereby clamping the component in cooperation with the housing and holding the component in the housing.
[0016]
According to the present invention, each pressing portion resiliently abuts a component, thereby clamping the component in cooperation with the housing. Thereby, the holding of the component to the housing can be realized.
[0017]
According to the fifth aspect of the present invention, the remaining components other than the components that each of the pressing portions abuts resiliently have a flexible substrate, and the pressing member partially moves the flexible substrate from the side opposite to the housing. It is characterized by covering.
[0018]
According to the invention, said remaining components comprise a flexible substrate. Since the pressing member partially covers the flexible substrate from the side opposite to the housing, it is possible to prevent the flexible substrate from being displaced in a direction away from the housing.
[0019]
According to a sixth aspect of the present invention, the component that each pressing portion contacts has an actuator that is operated by electric power, and the pressing portion that contacts this actuator applies a bias to the actuator.
[0020]
According to the present invention, the component that each pressing portion contacts has an actuator that is operated by electric power. The pressing portion that comes into contact with the actuator can realize operation of the actuator by applying a bias to the actuator.
[0021]
According to a seventh aspect of the present invention, the pressing member has a shielding function of shielding electromagnetic waves.
[0022]
According to the present invention, since the pressing member has a shielding function of shielding the electromagnetic wave, an accurate and reliable pickup operation can be realized.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a perspective view showing a relationship between a device main body and a pressing member of an optical pickup device according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a state in which the pressing member is snapped to the apparatus main body. FIG. 3 is an enlarged perspective view of a state in which the pressing member is elastically pressed against the apparatus main body. FIG. 4 is a perspective view of the recording medium and the optical pickup device. This embodiment shows an example in which the present invention is applied to an optical pickup device that records, reproduces, and deletes information on a recording medium such as a compact disk or a digital versatile disk.
[0024]
The optical pickup device 1 mainly includes a housing 2, a light source 3, an optical component 4, an actuator 5, an integrated circuit 6, a flexible substrate 7, and a pressing member 8. The light source 3, the optical component 4, the actuator 5, the integrated circuit 6, and the flexible substrate 7 correspond to components.
[0025]
The light source 3 includes, for example, a light emitting / receiving element for a compact disk (abbreviation: CD: Compact Disk) or for a digital versatile disk (abbreviation: DVD: Digital Versatile Disk). In the present embodiment, a configuration is adopted in which a light emitting / receiving element for CD or DVD is adopted, but the present invention is not necessarily limited to this configuration. For example, a configuration may be adopted in which both light receiving and emitting elements for CD and DVD are adopted.
[0026]
The light emitting / receiving element and the integrated circuit 6 are mounted on a flexible substrate 7. In other words, the flexible substrate 7 is electrically connected to the light receiving / emitting element as the light source 3 and, for example, the integrated circuit 6 for controlling the driving of the light source 3. Further, the light emitting / receiving element is fixed to a predetermined position of the housing 2.
[0027]
An optical component 4 and an actuator 5 are mounted on a housing 2 as a pressing object. The optical component 4 includes, for example, a collimator lens (not shown), a rising mirror, and an objective lens 9, and these optical components 4 are arranged on an optical axis between the light receiving / emitting element and the recording medium 10. . The objective lens 9 is configured to be driven and controlled by an actuator 5 that is operated by electric power while facing the recording medium 10, and the position of the objective lens 9 is adjusted.
[0028]
FIG. 5 is a perspective view of the pressing member viewed from one direction, and FIG. 6 is a perspective view of the pressing member viewed from another direction. The pressing member 8 may be referred to as a “pressing spring 8”. The pressing spring 8 is a pressed part integrally formed by a mold, and is made of, for example, a stainless steel sheet having a material thickness of about 0.2 mm and a material SUS301 defined by Japanese Industrial Standards. However, the material of the pressing spring 8 is not limited to the SUS301, and various steel plates can be adopted, for example. Further, the plate thickness of the pressing spring 8 is not limited to 0.2 mm.
[0029]
The pressing spring 8 is formed integrally with a plurality of pressing portions, and these pressing portions are each configured to be elastically deformable. A pressing portion 14 described later among the plurality of pressing portions resiliently contacts the optical component 4 which is a part of the component. The presser spring 8 is configured to partially cover the flexible board 7 as the remaining component from the side opposite to the housing 2. A pressing portion 24 described later among the plurality of pressing portions supplies electric power from a power source (not shown) to the actuator 5. After the flexible substrate 7 is temporarily positioned at a predetermined position of the housing 2, the optical component 4, a part of the flexible substrate 7, the actuator 5, and a part of the flexible substrate 7 are sequentially moved to a predetermined position of the housing 2 by a plurality of pressing portions. Make a snap hit at the position.
[0030]
Each pressing portion has a shielding function of shielding electromagnetic waves from outside the pickup device, for example, high-frequency noise. In particular, most of the light emitting and receiving elements are covered by the pressing portion 11 having a shielding function (described later), so that high-frequency noise can be reliably shielded.
[0031]
FIG. 7 is a plan view of the holding spring. FIG. 8 is an end view taken along line AA of FIG. FIG. 9 is an end view taken along line BB of FIG. FIG. 10 is an end view taken along line CC of FIG. FIG. 11 is an end view taken along line DD of FIG. The pressing spring 8 includes a base 12 arranged substantially in parallel with the recording medium 10 (see FIG. 4), a plurality of pressing portions, and an engaging portion 13.
[0032]
The base 12 is resiliently deformable, and is formed such that both ends in the longitudinal direction thereof can be locked to the housing 2. An external force is applied to the base 12 to deform it resiliently, and in this state, one end, that is, one end in the longitudinal direction, is locked to the housing 2. Further, by removing the external force, the other end, that is, the other end in the longitudinal direction, is locked to the housing 2 by the elastic recovery force.
[0033]
One pressing portion 14 of the plurality of pressing portions protrudes from the one end in the longitudinal direction of the base 12 by a predetermined small distance in a direction away from the recording medium 10. In FIG. 7, the longitudinal direction is indicated by an arrow L1. The direction of the separation is defined as one of the Z directions. In the present embodiment, “substantially parallel” includes parallel. The pressing portion 14 is a pressing portion 14 corresponding to the optical component 4, and a convex portion 15 is formed on one surface portion 14 a of the pressing portion 14 facing the optical component 4. The optical component 4 has an engaged portion (not shown) with which the convex portion 15 is engaged. The pressing portion 14 and the optical component 4 are relatively positioned by the convex portion 15 and the engaged portion. In addition, the pressing portion 14 resiliently contacts the optical component 4, thereby clamping the optical component 4 in cooperation with the housing 2 and holding the optical component 4 on the housing 2.
[0034]
Four pressing portions 16, 17, 18, and 19 are integrally formed at four corners of the base portion 12. The pressing portions 16, 17, 18, and 19 at the four corners are pressing portions that press and hold the flexible substrate 7 against the housing 2, and have a function of preventing the flexible substrate 7 from being displaced in a direction away from the housing 2. Have. One of the pressing portions 16 to 19 is disposed near the pressing portion 14 described above. The pressing portion 16 has a first pressing portion 16 a protruding from one side edge of the base 12 substantially in one direction in the Z direction. The pressing portion 16 continuously bends at the tip of the first pressing portion 16 a and is substantially parallel to the recording medium 10. And a third pressing portion 16c protruding from one end of the second pressing portion 16b substantially in one direction in the Z direction. In the present embodiment, the “substantially Z direction” includes the Z direction.
[0035]
A hole is formed in the second pressing portion 16b. For example, a screw is inserted between the hole and the hole formed in the flexible board 7, and the pressing portion 16 and the flexible board 7 are positioned with respect to the housing 2. The third pressing portion 16c is inserted into the housing 2 by the elastic force of the pressing portion 16, and a part of the flexible substrate 7 is pressed by the second pressing portion 16b and held at a predetermined position of the housing 2.
[0036]
At this time, one side edge of the flexible substrate 7 is restricted by the corner portion 20 of the second pressing portion 16b and the third pressing portion 16c. Moreover, the third pressing portion 16c is inserted into the housing 2 and regulated. By these, the pressing portion 16 and a part of the flexible board 7 are easily and smoothly provisionally positioned with respect to the housing 2, and the hole of the second pressing portion 16 b and the hole of the flexible board 7 are kept in the temporarily positioned state. The screw is inserted into the part.
[0037]
One of the pressing portions 16 to 19 at the four corners, which is disposed in the vicinity of the light emitting / receiving element, also includes a first pressing portion 17 a protruding from one side edge of the base 12 in one direction substantially in the Z direction, and a second pressing portion 17 a. It includes a portion 17b and a third pressing portion 17c. For example, a screw is inserted between the hole formed in the second pressing portion 17 b and the hole formed in the flexible substrate 7, and the pressing portion 17 and the flexible substrate 7 are positioned with respect to the housing 2. The third pressing portion 17c is inserted into the housing 2 by the elastic force of the pressing portion 17, and a part of the flexible substrate 7 is pressed by the second pressing portion 17b and is held at a predetermined position of the housing 2.
[0038]
At this time, one side edge of the flexible substrate 7 is restricted by the corner 21 between the second pressing portion 17b and the third pressing portion 17c. Moreover, the third pressing portion 17c is inserted into the housing 2 and regulated. By these, the pressing portion 17 and a part of the flexible substrate 7 are easily and smoothly temporarily provisionally positioned with respect to the housing 2, and the hole of the second pressing portion 17 b and the hole of the flexible substrate 7 are The screw is inserted into the part.
[0039]
Two pressing portions 18 and 19 of the four corner pressing portions 16 to 19 are spaced apart from each other in the longitudinal direction indicated by an arrow L1 in FIG. Each of the pressing portions 18 (19) is bent continuously from the first pressing portion 22 protruding from the other side edge of the base 12 in one direction in the Z direction, and the leading end of the first pressing portion 22 to be bent. And a second pressing portion 23 formed to approach the pressing portion 16 (17) substantially in parallel with the second pressing portion 23. Due to the resilient force of each pressing portion 18 (19), the first pressing portion 22 abuts tightly on the housing 2 and a part of the flexible substrate 7 is pressed by the second pressing portion 23 so that the predetermined position of the housing 2 is maintained. Is held.
[0040]
The flexible substrate 7 is pressed and held by the housing 2 by the above-described four corner pressing portions 16 to 19 that can be elastically deformed and the base portion 12 that applies and removes an external force. Moreover, the pressing member 8 partially covers the flexible substrate 7 from the side opposite to the housing 2. Therefore, the flexible substrate 7 is reliably prevented from being displaced in a direction away from the housing 2.
[0041]
Near the middle of the base 12 in the longitudinal direction, one pressing portion 24 is disposed on one side edge of the base 12. The pressing portion 24 is formed so as to extend to the actuator 5 substantially in parallel with the recording medium 10. A projection 24 a is formed at the tip end of the pressing portion 24 so as to protrude a predetermined small distance in one direction in the Z direction and elastically urge the actuator 5. The resiliently deformable pressing portion 24 comes into contact with the actuator 5. The pressing portion 24 has a function of supplying power from a power supply to the actuator 5. As described above, the pressing portion 24 has a function of supplying electric power to the actuator 5, in other words, a bias function, so that the actuator 5 can be operated. Therefore, the position of the objective lens 9 can be adjusted by the actuator 5.
[0042]
By the way, in order to form the pressing portion 24, slits 25 and 26 are formed in the base 12 along the longitudinal direction of the pressing portion 24. A rib 27 is formed in the vicinity of the slit of the base 12 to compensate for a decrease in strength due to the formation of such slits 25 and 26. The rib 27 is formed in a U-shape when the base 12 is viewed in one direction in the Z direction, and is integrally formed with the base 12 so as to be slightly recessed in the one direction in the Z direction.
[0043]
The pressing portion 11 corresponding to the light emitting / receiving element is integrally formed at the other end in the longitudinal direction of the base portion 12. The pressing portion 11 is formed so as to protrude in one direction in the Z direction and to cover one surface portion of the light receiving and emitting element, one edge of the light receiving and emitting element, and the other edge. As described above, since one surface portion, one side edge portion, and the other side edge portion of the light emitting / receiving element are covered by the pressing portion 11 having the shielding function, it is possible to reliably block external high-frequency noise. This makes it possible to realize an accurate and reliable pickup operation.
[0044]
An engaging portion 13 engageable with the housing 2 is integrally formed on the other side edge of the base portion 12. The engagement portion 13 is formed to protrude from the base 12 in one of the Z directions. When the optical component 4, a part of the flexible substrate 7, the actuator 5, a part of the flexible substrate 7, and the light emitting / receiving element are snap-hit at predetermined positions of the housing 2 by a plurality of pressing portions sequentially, the engagement portion 13 It is engaged with the housing 2.
[0045]
According to the optical pickup device 1 and the pressing spring 8 described above, the pressing member 8 is formed integrally with a plurality of resiliently deformable pressing portions. The pressing member 8 is mounted on the housing 2 and resiliently presses a predetermined position of the housing 2 by each pressing portion. As described above, since the plurality of resiliently deformable pressing portions are integrally formed in the pressing member 8, the number of components can be reduced and the pressing member 8 can be downsized.
[0046]
Moreover, since the pressing member 8 is mounted on the housing 2 and a predetermined position of the housing 2 is resiliently pressed by each pressing portion, the mounting itself of the pressing member 8 on the housing 2 can be simplified. For example, there is no need to pay attention to the assembling work so that each pressing portion is not plastically deformed. Therefore, the cycle time can be reduced, and the manufacturing cost can be reduced.
[0047]
The pressing member 8 further has a base 12, and each pressing portion is formed to protrude from the base 12. The base 12 is resiliently deformable, and both ends thereof are formed so as to be locked to the housing 2. An external force is applied to the base 12 to elastically deform the base 12. In this state, one end is locked to the housing 2 and the external force is removed, whereby the other end is locked to the housing 2 by elastic recovery force. By applying and removing the external force to and from the base 12 described above, both ends of the base 12 can be easily and reliably locked to the housing 2. Thus, the mounting of the pressing member 8 to the housing 2 can be easily realized.
[0048]
Further, according to the present pickup device 1, each pressing portion resiliently comes into contact with the optical component 4, thereby clamping the optical component 4 in cooperation with the housing 2. Thereby, holding of the optical component 4 on the housing 2 can be realized. Further, since the pressing member 8 partially covers the flexible board 7 from the side opposite to the housing 2, it is possible to prevent the flexible board 7 from being displaced in a direction away from the housing 2.
[0049]
The pressing portion 24 abutting on the actuator 5 applies the bias to the actuator 5, so that the operation of the actuator 5 can be realized. Thus, the drive of the objective lens 9 can be controlled. Since the pressing member 8 has a shielding function of shielding electromagnetic waves, it is possible to realize an accurate and reliable pickup operation.
[0050]
In the present embodiment, the function of fixing the optical component, the function of covering the flexible board, the function of biasing the actuator, and the function of shielding are realized by one press spring that is integrally formed, but is not necessarily limited to this form. Instead, a mode may be adopted in which any two of these four functions are selectively realized.
[0051]
For example, a configuration may be employed in which only one function of pressing the optical component and the flexible substrate is achieved by one integrally formed pressing spring. In this case, since the optical component and the flexible substrate can be sequentially pressed against the housing, the number of components can be reduced as compared with the conventional one in which a plurality of leaf spring pieces are combined for each function, and the pressing spring can be reduced. Can be reduced in size. Also, as in the present embodiment, assembly of parts can be simplified.
[0052]
In addition, a form in which the function of covering the flexible substrate, the function of biasing the actuator, and the function of shielding may be realized by one press spring formed integrally. Further, the form in which the function of pressing the optical component and the flexible substrate and the function of biasing the actuator may be realized by one integrally formed pressing spring.
[0053]
In the present embodiment, the optical component, a part of the flexible substrate, the actuator, a part of the flexible substrate, and the light emitting / receiving element are sequentially snap-hit at respective predetermined positions of the housing by the plurality of pressing portions, but the order is not always the same. , It is not necessary to make a snap hit. Specifically, the order in which these components are snap-hit may be selectively changed according to the layout position of the optical component, the flexible substrate, the actuator, and the light emitting / receiving element on the housing. In this case, the same effect as that of the present embodiment can be obtained.
[0054]
Depending on the thickness of the pressing spring, the rib formed on the base may be omitted. A rib may be added to at least one of the base and the pressing part as needed. Thereby, the rigidity of the holding spring can be improved. In the present embodiment, a light emitting / receiving element is used as a light source, but the invention is not necessarily limited to this configuration. For example, the light-emitting element and the light-receiving element may have a separate structure. In addition, various partial changes may be made to the above-described embodiment without departing from the scope of the claims.
[0055]
【The invention's effect】
According to the first aspect of the present invention, in the pressing member, a plurality of resiliently deformable pressing portions are integrally formed. The pressing member is mounted on the pressing object, and resiliently presses a predetermined position of the pressing object by each pressing portion. As described above, since the pressing member is formed integrally with the plurality of resiliently deformable pressing portions, the number of components can be reduced as compared with the conventional one in which a plurality of leaf spring pieces are combined for each function. As a result, the size of the pressing member can be reduced.
[0056]
In addition, since the pressing member is mounted on the pressing object and the predetermined position of the pressing object is resiliently pressed by each pressing portion, the mounting itself of the pressing member on the pressing object can be simplified. For example, there is no need to pay attention to the assembling work so that each pressing portion is not plastically deformed. Therefore, the cycle time can be reduced, and the manufacturing cost can be reduced.
[0057]
According to the second aspect of the present invention, the base is elastically deformable, and both ends thereof are formed so as to be locked to the object to be pressed. An external force is applied to the base to elastically deform the base. In this state, one end is locked to the object to be pressed, and the external force is removed, whereby the other end is locked to the object to be pressed by the elastic recovery force. By applying and removing the external force to and from the base as described above, both ends of the base can be easily and reliably locked to the object to be pressed. In this manner, the mounting of the pressing member on the pressing object can be easily realized.
[0058]
According to the third aspect of the present invention, the pressing member mounted on the housing is formed integrally with a plurality of resiliently deformable pressing portions. Contact. As described above, since the pressing member is formed integrally with the plurality of resiliently deformable pressing portions, the number of components can be reduced as compared with the conventional one in which a plurality of leaf spring pieces are combined for each function. In addition, the size of the optical pickup device can be reduced. In addition, since the pressing member is mounted on the pressing object, and each pressing portion is resiliently brought into contact with some of the components, the mounting itself of the pressing member on the pressing object can be simplified. For example, there is no need to pay attention to the assembling work so that each pressing portion is not plastically deformed. Therefore, the cycle time required for assembly can be shortened, and the manufacturing cost can be reduced.
[0059]
According to the fourth aspect of the present invention, each pressing portion elastically comes into contact with a component, thereby clamping the component in cooperation with the housing. Thereby, the holding of the component to the housing can be realized.
[0060]
According to the invention as set forth in claim 5, the remaining components have a flexible substrate. Since the pressing member partially covers the flexible substrate from the side opposite to the housing, it is possible to prevent the flexible substrate from being displaced in a direction away from the housing.
[0061]
According to the sixth aspect of the present invention, the component with which each pressing portion abuts has an actuator that operates by electric power. The pressing portion that comes into contact with the actuator can realize operation of the actuator by applying a bias to the actuator.
[0062]
According to the seventh aspect of the present invention, since the pressing member has a shielding function of shielding the electromagnetic wave, an accurate and reliable pickup operation can be realized.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a relationship between a device main body and a pressing member of an optical pickup device according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating a state where a pressing member is snap-hit to the apparatus main body.
FIG. 3 is an enlarged perspective view showing a state where a pressing member is elastically pressed against the apparatus main body.
FIG. 4 is a perspective view of a recording medium and an optical pickup device.
FIG. 5 is a perspective view of the pressing member viewed from one direction.
FIG. 6 is a perspective view of the pressing member viewed from another direction.
FIG. 7 is a plan view of a holding spring.
FIG. 8 is an end view taken along the line AA of FIG. 7;
FIG. 9 is an end view taken along the line BB of FIG. 7;
FIG. 10 is an end view taken along line CC of FIG. 7;
FIG. 11 is an end view taken along line DD of FIG. 7;
[Explanation of symbols]
1 Optical pickup device
2 Housing
3 light source
4 Optical components
5 Actuator
7 Flexible board
8 Pressing member
10 Recording media
11,14,16,17,18,19,24 Pressing part
12 base

Claims (7)

A pressing member in which a plurality of resiliently deformable pressing portions are integrally formed,
A pressing member, which is mounted on a pressing target and resiliently presses a predetermined position of the pressing target by each pressing portion. A base portion that can be elastically deformed and has both ends formed so as to be latchable to the object to be pressed. The base portion is elastically deformed by applying an external force, and in this state, one end is engaged with the object to be pressed. Stopping, by removing the external force, further has a base portion, the other end of which is locked to the pressing object by the elastic recovery force,
The pressing member according to claim 1, wherein each pressing portion is formed to protrude from the base. An optical pickup device comprising a plurality of constituent parts provided in a housing, and capable of executing at least one of recording, reproducing, and erasing of information on a recording medium,
Having a pressing member attached to the housing,
An optical pickup device, wherein the pressing member is formed by integrally forming a plurality of resiliently deformable pressing portions, and each pressing portion is resiliently brought into contact with some component parts. 4. The optical pickup device according to claim 3, wherein each pressing portion resiliently abuts the component, thereby sandwiching the component in cooperation with the housing and holding the component in the housing. The remaining components other than the components to which each pressing portion resiliently contacts have a flexible substrate, and the pressing member partially covers the flexible substrate from the side opposite to the housing. An optical pickup device as described in the above. 6. The optical pickup device according to claim 3, wherein the component contacting each pressing portion has an actuator operated by electric power, and the pressing portion contacting the actuator applies a bias to the actuator. . The optical pickup device according to claim 3, wherein the pressing member has a shielding function of shielding electromagnetic waves.

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