Blade drive device

Abstract

To provide a blade driving device being small-sized and installable even in a limited space.SOLUTION: A cover member 50 includes a first cover part 51a to be fixed at a base member 31 and a second cover part 51b projecting in a movement direction of a blade member 33 from the first cover part 51a. The second cover part 51b includes a supporting leg part 51d projecting toward a first face 19a of a module substrate 19 and supported by the first face 19a. Thus, a need for an extension of the base member 31 equivalent to the cover member 50 is eliminated, and it becomes possible to shorten (miniaturize) the base member 31 and to further miniaturize a blade driving device 30.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a blade drive device equipped with a blade member that opens and closes an opening. [Background technology]

[0002] Electronic devices such as laptops and smartphones are equipped with camera units. In many electronic devices equipped with a camera unit, a small window in a frame member facing the lens of the camera unit is always open, allowing photography to be performed at all times. In this case, if the user does not properly manage virus countermeasures, a malicious third party may take over the camera unit and operate it. This may cause problems such as personal information being leaked onto a network via the camera unit.

[0003] As one of the measures to solve such a problem, for example, Patent Document 1 describes an opening / closing device (blade drive device) that can be used for an electronic device equipped with a camera unit. The opening / closing device of Patent Document 1 has a structure in which the lens forming the camera unit is physically blocked by a shutter, and this allows a legitimate user of the electronic device to visually check whether the lens is blocked by the opening / closing device or not, and thus allows the user to feel secure by confirming the non-operating state of the camera unit. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] US Patent Application Publication No. 2020 / 0249415 Summary of the Invention [Problem to be solved by the invention]

[0005] However, as electronic devices become smaller, the mounting space for a camera unit including an opening / closing device also becomes smaller, and the opening / closing device described in Patent Document 1 has limitations in responding to the miniaturization of electronic devices. Specifically, in the opening / closing device described in Patent Document 1, a base is provided over the entire longitudinal area, and a cap is attached to the base. In particular, the base is formed in a substantially rectangular parallelepiped shape, and its volume is large, occupying most of the opening / closing device. This has been an obstacle to miniaturization of the entire opening / closing device.

[0006] An object of the present invention is to provide a small blade drive device that can be mounted even in a limited space. [Means for solving the problem]

[0007] In one aspect of the present invention, a blade drive device is provided with a blade member that opens and closes an opening, the device comprising: an actuator that moves the blade member back and forth; a base member that holds the actuator and is fixed to a fixed surface; and a cover member having a length dimension greater than the length dimension of the base member in the direction of movement of the blade member, the cover member comprising a first cover portion fixed to the base member, a second cover portion that protrudes from the first cover portion in the direction of movement of the blade member and has the opening provided therein, and a support leg that protrudes from the second cover portion toward the fixed surface and is supported by the fixed surface. Effect of the Invention

[0008] According to the present invention, the cover member includes a first cover portion fixed to the base member and a second cover portion protruding from the first cover portion in the moving direction of the blade member, and the second cover portion is provided with a support leg portion protruding toward the fixing surface and supported by the fixing surface. This eliminates the need to make the base member as long as the cover member, and makes it possible to shorten (reducing) the base member and further reduce the size of the blade drive device. Therefore, for example, it is possible to improve the functionality and design of the electronic device by making the frame member that forms the electronic device thinner. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram of a notebook computer equipped with a camera unit. [Diagram 2] FIG. 2 is a perspective view showing the camera unit of FIG. [Diagram 3] FIG. 3 is a cross-sectional view taken along line AA in FIG. [Figure 4] FIG. 2 is an exploded perspective view of the camera unit of FIG. [Figure 5A] FIG. 2 is a perspective view (front side) of the actuator unit. [Figure 5B] FIG. 2 is a perspective view (rear side) of the actuator unit. [Figure 6A] FIG. 13 is an explanatory diagram of the operation of the actuator unit (CLOSE). [Figure 6B] FIG. 2 is an explanatory diagram (OPEN) of the operation of the actuator unit. [Figure 7A] FIG. 4 is an explanatory diagram of the operation of the blade member (OPEN). [Figure 7B] FIG. 13 is an explanatory diagram of the operation of the blade member (CLOSE). [Figure 8] FIG. 11 is a perspective view showing a camera unit according to a second embodiment. [Figure 9] FIG. 9 is an exploded perspective view of the camera unit of FIG. 8. [Figure 10] FIG. 11 is an exploded perspective view showing a camera unit according to a third embodiment. [Figure 11A] FIG. 2 is an explanatory diagram of the operation of a photoreflector (OPEN). [Figure 11B] FIG. 1 is an explanatory diagram of the operation of a photoreflector (CLOSE). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the first embodiment of the present invention will be described in detail with reference to the drawings.

[0011] Figure 1 is a schematic diagram of a notebook computer equipped with a camera unit, Figure 2 is an oblique view showing the camera unit of Figure 1, Figure 3 is a cross-sectional view along line AA of Figure 2, Figure 4 is an exploded oblique view of the camera unit of Figure 1, Figure 5A is an oblique view of the actuator unit (front side), Figure 5B is an oblique view of the actuator unit (back side), Figure 6A is an explanatory diagram of the operation of the actuator unit (CLOSE), Figure 6B is an explanatory diagram of the operation of the actuator unit (OPEN), Figure 7A is an explanatory diagram of the operation of the blade members (OPEN), and Figure 7B is an explanatory diagram of the operation of the blade members (CLOSE).

[0012] 1, a notebook computer 10, which is an electronic device, includes a keyboard section 13 having a plurality of keys 11 and a touch pad 12 operated by a user, and a display section 14 that displays operation information of the plurality of keys 11 and the touch pad 12, images or videos on the Internet, etc. The keyboard section 13 and the display section 14 are each formed in a substantially flat plate shape, and can be opened and closed by folding toward each other via a hinge (not shown).

[0013] The display unit 14 includes a display 15 consisting of a liquid crystal color monitor or the like, and a hollow frame member 16 provided around the display 15. The frame member 16 supports the periphery of the display 15 to protect the display 15. Inside the frame member 16, a flexible substrate (not shown) that supplies a driving current to the display 15 and a camera unit 17 that can be used, for example, in online conferences are housed. A small window 18 is provided in a portion of the frame member 16 facing the camera unit 17. The small window 18 communicates the inside and outside of the frame member 16, and a lens portion 21b (see FIGS. 2 and 3) of the camera unit 17 faces the small window 18. This allows a user to view the lens portion 21b through the small window 18.

[0014] 2 to 4, camera unit 17 housed in frame member 16 includes module board 19 fixed inside frame member 16, camera module 20 mounted on module board 19, and blade drive device 30 that opens and closes small window 18 (see FIG. 1) of frame member 16. Blade drive device 30 is housed in frame member 16 of notebook computer 10 as camera unit 17 in a state where it is fixed to module board 19 on which camera module 20 is mounted. In this way, notebook computer 10 having a camera function is realized.

[0015] The module substrate 19 is a PCB (printed circuit board) and has a first surface (front surface) 19a and a second surface (back surface) 19b on which conductor wiring made of a thin film of brass or the like is printed. The camera module 20 and the blade drive device 30 are fixed to the first surface 19a of the module substrate 19. Specifically, the camera module 20 and the blade drive device 30 are fixed to the first surface 19a with an adhesive or the like with high precision and firmness. Meanwhile, the second surface 19b of the module substrate 19 is fixed to the frame member 16 with an adhesive or the like with high precision and firmness. In this way, the module substrate 19 is integrated with the frame member 16, and the first surface 19a of the module substrate 19 corresponds to the fixing surface in the present invention.

[0016] The camera module 20 includes a lens unit 21, which has a base 21a fixed to the first surface 19a of the module substrate 19 and a lens portion 21b formed in a substantially cylindrical shape. An imaging element (not shown) is housed inside the base 21a, and a convex lens (not shown) is housed inside the lens portion 21b. Here, with the recent trend toward higher functionality in electronic devices including the notebook computer 10, high-resolution imaging elements are being adopted. Since imaging elements with higher resolution tend to be larger, it is inevitable that the camera module 20 will also be larger. Therefore, miniaturizing the camera unit 17 has become an important condition in the development of recent electronic devices.

[0017] Furthermore, fixing members 22 for fixing the lens unit 21 to the module substrate 19 are disposed on both sides of the base portion 21a in the longitudinal direction of the module substrate 19. The fixing members 22 are, for example, a resin adhesive.

[0018] As shown in Figures 2 to 4, the blade drive device 30 includes a base member 31 fixed to the first surface 19a of the module board 19, an actuator unit (actuator) 40 held by the base member 31, a partition plate 32 placed on the base member 31, a cover member 50 covering the base member 31 and the camera module 20, and a blade member 33 movably arranged between the cover member 50 and the partition plate 32 and for opening and closing the small window 18 of the frame member 16.

[0019] The base member 31 extends in the longitudinal direction of the module substrate 19, and is disposed alongside the camera module 20 in the longitudinal direction of the module substrate 19. The base member 31 is made of a resin material such as plastic and has a generally rectangular parallelepiped shape with a plurality of projections and recesses. An actuator accommodating recess 31a for accommodating the actuator unit 40 is provided on the opposite side of the base member 31 from the camera module 20 in the longitudinal direction.

[0020] Moreover, a partition plate 32 is placed on the camera module 20 side of the base member 31 in the longitudinal direction, and a partition plate support part 31b is provided to support a longitudinal center part of the partition plate 32. Furthermore, in the longitudinal direction of the base member 31, a lever accommodating recess 31c is provided between the actuator accommodating recess 31a and the partition plate support part 31b, in which a drive lever 47 of the actuator unit 40 is accommodated so as to be able to swing freely.

[0021] Here, the depth dimensions of the actuator accommodating recess 31a, the partition plate support portion 31b and the lever accommodating recess 31c in the plate thickness direction of the module substrate 19 gradually become deeper in a stepped manner in the order of the partition plate support portion 31b, the lever accommodating recess 31c and the actuator accommodating recess 31a.

[0022] 3 and 4, a total of three hooking claws 31d (only two are shown in the figures) are integrally provided on the periphery of the base member 31 so as to protrude outward from the base member 31. These hooking claws 31d have a substantially triangular cross section, and an engaging portion 51c provided on the cover member 50 is hooked onto each of the hooking claws 31d. That is, a snap fit is formed by the hooking claws 31d and the engaging portion 51c. The cover member 50 and the base member 31 have a total of three engaging portions, and the cover member 50 is firmly fixed to the base member 31 without rattling.

[0023] The actuator accommodating recess 31a is integrally provided with a positioning protrusion 31e which is inserted into an insertion hole 42a (see FIGS. 5A and 5B) provided in the actuator unit 40 and which positions the actuator unit 40 relative to the actuator accommodating recess 31a. This allows the actuator unit 40 to be fixed inside the actuator accommodating recess 31a without rattling. This makes it possible to efficiently transmit the driving force of the actuator unit 40 to the blade members 33.

[0024] Further, a pair of guide protrusions 31f are integrally provided on the partition plate support portion 31b so as to protrude in the plate thickness direction of the module substrate 19. These guide protrusions 31f face each other in the width direction (short side direction) intersecting with the longitudinal direction of the module substrate 19, and the blade members 33 are slidably provided between the pair of guide protrusions 31f while being guided by the respective guide protrusions 31f. This allows the blade members 33 to move straight in the longitudinal direction without vibrating in the short side direction of the module substrate 19. This reduces the load on the actuator unit 40, and suppresses malfunctions and the like caused by insufficient torque of the actuator unit 40.

[0025] Furthermore, a support pin 31g that pivotally supports the drive lever 47 of the actuator unit 40 is integrally provided in the lever accommodating recess 31c. As a result, the drive lever 47 is pivotable about the support pin 31g inside the lever accommodating recess 31c.

[0026] The actuator unit 40 is a driving source that reciprocates the blade member 33 in the longitudinal direction of the module substrate 19, and includes a metal (magnetic) yoke 41 formed in a substantially U-shape as shown in FIG. 5A and FIG. 5B. The yoke 41 has a first arm 41a and a second arm 41b, and the first arm 41a is fixed to a coil bobbin 42 made of a resin material (non-magnetic material) such as plastic. A coil (copper wire) 43 is wound around the first arm 41a with a predetermined number of turns via the coil bobbin 42. Here, the coil bobbin 42 is provided with a first connection terminal T1 and a second connection terminal T2 made of a conductor such as brass. One end side of the first and second connection terminals T1 and T2 is electrically connected to both ends of the coil 43, respectively, and the other end side of the first and second connection terminals T1 and T2 is electrically connected to the module substrate 19 via a flexible substrate 44 (see FIG. 4, FIG. 7A, and FIG. 7B).

[0027] As a result, by switching the direction of the drive current flowing through the coil 43 between the forward and reverse directions, the first arm 41a, which is a magnetic body, is magnetized to a "N pole" or "S pole". On the other hand, the second arm 41b, which is a magnetic body, becomes a "S pole" when the first arm 41a is magnetized to a "N pole", and becomes a "N pole" when the first arm 41a is magnetized to a "S pole" (see Figs. 6A and 6B). As a result, the magnet lever 45 forming the actuator unit 40 is swung in response to the switching of the polarity of the first and second arms 41a and 41b.

[0028] Here, the coil bobbin 42 is provided with an insertion hole 42a for positioning the actuator unit 40 in the actuator accommodating recess 31a (see FIGS. 3 and 4) of the base member 31. That is, the positioning protrusion 31e (see FIG. 4) of the base member 31 is adapted to be inserted into the insertion hole 42a.

[0029] The magnet lever 45 forming the actuator unit 40 is supported so as to be freely swingable by a swing shaft 31h (see FIG. 3) provided integrally with the actuator accommodating recess 31a forming the base member 31. When the actuator unit 40 is assembled in the actuator accommodating recess 31a, the magnet lever 45 is disposed between the first arm 41a and the second arm 41b.

[0030] The magnet lever 45 is made of a resin material such as plastic, and includes a lever body 45a formed in an annular shape and a driving claw 45b formed in a fork shape at the tip side, as shown in Fig. 6A and Fig. 6B. An input side convex part 47b (see Fig. 5B) of the driving lever 47 is inserted into the split part of the driving claw 45b. On the other hand, an annular rotor magnet 46 is fixed to the lever body 45a so as to be coaxial with the lever body 45a. That is, the rotor magnet 46 is arranged between the first arm part 41a and the second arm part 41b so as to be able to swing freely. Here, the rotor magnet 46 is a so-called plastic magnet, which can be molded with high precision and is not brittle, and there is no risk of "chipping" or the like.

[0031] As shown in Figures 5B, 6A and 6B, the rotor magnet 46 is integrally provided with magnet protrusions 46a protruding radially outward. The rotor magnet 46 is magnetized with "N pole" and "S pole" at 180 degree intervals in the circumferential direction. The magnet protrusions 46a are "N pole" and protrude toward the drive claw 45b. As a result, the magnet protrusions 46a are attracted to or repelled by the first and second arm portions 41a and 41b, respectively, depending on the switching of the polarities of the first and second arm portions 41a and 41b.

[0032] The first and second arms 41a and 41b are magnetized to the "N pole" or "S pole" by switching the direction of the drive current flowing through the coil 43 to the forward or reverse direction, and generate an attractive force and a repulsive force, while the first and second arms 41a and 41b become simply metal (magnetic body) when the coil 43 is de-energized. Therefore, for example, after the drive current is applied to the coil 43 to attract the magnet protrusion 46a to the first arm 41a, if the supply of the drive current to the coil 43 is stopped (to bring the coil 43 into a de-energized state), the state is maintained (de-energized state). This is because the magnetic force of the magnet protrusion 46a attracts the de-polarized magnetic body of the first arm 41a. Therefore, it is only necessary to temporarily apply the drive current to the coil 43, and therefore it is possible to reduce power consumption.

[0033] As shown in Fig. 5A and Fig. 5B, the actuator unit 40 is made of a resin material such as plastic and includes a drive lever 47 formed in a substantially L-shape. The drive lever 47 is provided between the magnet lever 45 and the blade member 33 to be driven, and has a function of converting the swinging motion of the magnet lever 45 into the linear motion of the blade member 33. The drive lever 47 includes a lever body 47a formed in a substantially L-shape, and an input side protrusion 47b that fits into the split end of the drive claw 45b is provided on one longitudinal side of the lever body 47a. In addition, an output side protrusion 47c that fits into the inclined hole 33c (see Fig. 4) of the blade member 33 is provided on the other longitudinal side of the lever body 47a.

[0034] In addition, a hole 47d is provided between the input side protrusion 47b and the output side protrusion 47c in the longitudinal direction of the lever body 47a, and is supported so as to be freely swingable by the support pin 31g (see FIG. 4) of the base member 31. As a result, when the magnet lever 45 swings about the swing shaft 31h (see FIG. 3), the drive lever 47 swings about the support pin 31g.

[0035] As shown in FIG. 4, the partition plate 32 is formed into a long plate shape by pressing a thin metal plate or the like, and extends over the entire longitudinal area of ​​the blade drive device 30. Specifically, the length dimension of the partition plate 32 in the moving direction of the blade member 33 is greater than the length dimension of the base member 31 in the moving direction of the blade member 33. One longitudinal side (left side in the figure) of the partition plate 32 is fixed to the base member 31, and the other longitudinal side (right side in the figure) of the partition plate 32 is fixed to the cover member 50. A first opening 32a is provided on the other longitudinal side of the partition plate 32, and the first opening 32a penetrates the partition plate 32 in the plate thickness direction. The center portion of the first opening 32a is located on the optical axis P1 of the lens unit 21, and faces a small window 18 (see FIG. 1) provided in the frame member 16 of the notebook computer 10.

[0036] As a result, the lens unit 21 faces the small window 18, and light is incident on the lens unit 21 through the small window 18. In other words, the first opening 32a of the partition plate 32 functions as an aperture that determines the amount of light incident on the lens unit 21. For this reason, the partition plate 32 is also called an aperture plate. Here, the partition plate 32 can be omitted, but in that case, the second opening 51h of the cover member 50 functions as the aperture.

[0037] Moreover, a pair of first holes 32b penetrating the partition plate 32 in the plate thickness direction is provided on one side of the longitudinal direction of the partition plate 32. A positioning protrusion 31e is inserted into one of these first holes 32b. Furthermore, a protrusion 42b provided on the coil bobbin 42 of the actuator unit 40 is inserted into the other first hole 32b. As a result, the one longitudinal direction side of the partition plate 32 is fixed to both the base member 31 and the coil bobbin 42 with high accuracy without rattling. Therefore, the blade member 33 driven by the actuator unit 40 can be moved smoothly relative to the partition plate 32.

[0038] Here, a first arc hole 32c is provided between the other first hole portion 32b and the first opening 32a in the longitudinal direction of the partition plate 32, the first arc hole 32c being hollowed out in a substantially arc shape. The first arc hole 32c is also provided penetrating the partition plate 32 in the plate thickness direction, and an output side protrusion 47c (see FIG. 5A) of the drive lever 47 is provided inside the first arc hole 32c so as to be freely movable. The tip side (upper side in FIG. 4) of the output side protrusion 47c reaches the blade member 33 arranged between the partition plate 32 and the cover member 50 beyond the partition plate 32. The output side protrusion 47c is in a non-contact state with the partition plate 32. This reduces the load on the actuator unit 40.

[0039] Furthermore, a support protrusion 32d fixed to a support hole 51f of the cover member 50 is integrally provided on the other longitudinal side (right side in FIG. 4) of the first opening 32a of the partition plate 32. The support protrusion 32d protrudes to the other longitudinal side of the partition plate 32 so as to be narrower than the width dimension of the partition plate 32. This allows the support protrusion 32d to be inserted from the longitudinal direction of the partition plate 32 into the narrow support hole 51f provided in the cover member 50. The support hole 51f of the cover member 50 supports the back surface 32e of the support protrusion 32d (the back surface 32e of the partition plate 32). Meanwhile, the front surface 32f of the partition plate 32 is supported by a partition plate pressing protrusion 51g provided in the cover member 50.

[0040] As a result, a blade chamber RM (see FIG. 3) that movably houses the blade member 33 is formed between the partition plate 32 and the cover member 50. That is, the partition plate 32 forms the blade chamber RM together with the cover member 50. Therefore, the blade member 33 can move smoothly inside the blade chamber RM. This also reduces the load on the actuator unit 40.

[0041] 4, the blade members 33 are thin plates made of a resin material such as plastic, and the length dimension in the longitudinal direction thereof is approximately half the length dimension of the partition plate 32. In this way, by making the partition plate 32 out of metal and the blade members 33 out of resin, the movement of the blade members 33 relative to the partition plate 32 is made smooth. This reduces the load on the actuator unit 40, and prevents the actuator unit 40 from burning out, etc.

[0042] A long hole 33a is provided on one longitudinal side (left side in the figure) of the blade member 33, extending straight in the longitudinal direction of the blade member 33 (the direction in which the blade member 33 moves), and the long hole 33a penetrates the blade member 33 in the plate thickness direction. When the blade drive device 30 is in an assembled state, the protrusion 42b of the coil bobbin 42 fits freely into the long hole 33a. The long hole 33a guides the reciprocating movement (opening and closing movement) of the blade member 33, and also has the function of restricting the amount of movement of the blade member 33.

[0043] In this way, one longitudinal side of the blade member 33 is guided by the convex portion 42b, and the other longitudinal side of the blade member 33 is guided by the pair of guide protrusions 31f. Therefore, the blade member 33 can move straight in the longitudinal direction of the blade drive device 30 with high accuracy.

[0044] Moreover, on the other longitudinal side (the right side in the figure) of the blade member 33, a shutter portion 33b capable of blocking the first opening 32a of the partition plate 32 is provided. The shutter portion 33b is capable of blocking the entire area of ​​the first opening 32a as the blade member 33 moves (see FIG. 7B). This blocks light from entering the lens unit 21.

[0045] 4, in the longitudinal direction of the blade member 33, an inclined hole 33c inclined with respect to both the longitudinal direction and the lateral direction of the blade member 33 is provided between the long hole 33a and the shutter portion 33b. The inclined hole 33c also penetrates the blade member 33 in the plate thickness direction. An output side protrusion 47c (see FIG. 5A) of the drive lever 47 is slidably inserted inside the inclined hole 33c. As a result, the output side protrusion 47c slides back and forth inside the inclined hole 33c as the drive lever 47 swings, and as a result, the blade member 33 reciprocates in the longitudinal direction of the blade drive device 30.

[0046] Here, because partition plate 32 is disposed between blade member 33 and drive lever 47, there is no contact between drive lever 47 and blade member 33. Therefore, the swinging motion of drive lever 47 does not adversely affect the linear motion of blade member 33. In addition, because partition plate 32 is disposed between blade member 33 and lens unit 21, blade member 33 does not come into contact with lens unit 21. Therefore, damage to lens unit 21 is effectively prevented.

[0047] 4, the cover member 50 is formed into a predetermined shape by pressing a metal plate or the like, and extends over the entire longitudinal direction of the blade drive device 30, similar to the partition plate 32. That is, the length dimension of the cover member 50 in the movement direction of the blade member 33 is greater than the length dimension of the base member 31 in the movement direction of the blade member 33. One longitudinal side (left side in the figure) of the cover member 50 is fixed to the base member 31, and the other longitudinal side (right side in the figure) of the cover member 50 is supported by the first surface 19a of the module board 19. The cover member 50 has an elongated cover body 51 formed in a plate shape, and the cover body 51 covers the blade member 33.

[0048] Specifically, the cover body 51 has a first cover part 51a that covers the actuator unit 40 side in the longitudinal direction of the blade drive device 30, and a second cover part 51b that covers the camera module 20 side in the longitudinal direction of the blade drive device 30. Here, the first cover part 51a is a part that covers the base member 31 and is fixed to the base member 31. On the other hand, the second cover part 51b is a part that protrudes from the first cover part 51a in the movement direction of the blade member 33, covers the lens part 21b of the camera module 20, and is in a cantilevered state. Note that in Figs. 2 and 4, the boundary between the first cover part 51a and the second cover part 51b is indicated by a dashed line.

[0049] A total of three engaging portions 51c are integrally formed on the first cover portion 51a. These engaging portions 51c extend from the first cover portion 51a toward the base member 31, and are hooked onto a total of three hooking claws 31d provided on the base member 31, respectively. This allows the cover member 50 to be firmly fixed to the base member 31.

[0050] On the other hand, a support leg 51d is integrally provided on the other longitudinal side of the second cover part 51b, protruding from the other longitudinal side of the second cover part 51b toward the first surface 19a of the module substrate 19. The tip of the support leg 51d is in contact with the first surface 19a of the module substrate 19 and is supported by the first surface 19a. A pair of reinforcing parts 51e (see Figs. 7A and 7B) bent in the moving direction of the blade member 33 is integrally provided on the support leg 51d, and the tip of the reinforcing part 51e is also in contact with the first surface 19a of the module substrate 19 and is supported by the first surface 19a. The cross section of the support leg 51d including the pair of reinforcing parts 51e in the direction intersecting the optical axis P1 is formed into a substantially U-shaped shape. This increases the rigidity of the support leg 51d, and prevents the support leg 51d from falling outward (the opposite side to the camera module 20). That is, the rigidity of the second cover portion 51b in the direction of the optical axis P1 is sufficiently ensured.

[0051] Furthermore, a support hole 51f is provided at the base end side of the support leg 51d, which is hollowed out in a substantially rectangular shape. The support hole 51f is disposed at a bent portion between the second cover portion 51b and the support leg 51d, and penetrates the cover member 50 in the plate thickness direction. The support protrusion 32d of the partition plate 32 is adapted to enter the inside of the support hole 51f. Specifically, the support protrusion 32d is adapted to enter the support hole 51f from one side in the longitudinal direction of the cover member 50 (see FIGS. 7A and 7B). As a result, the rear surface 32e (see FIG. 3) of the partition plate 32 is supported by the support hole 51f, and movement or bending of the partition plate 32 toward the camera module 20 (lens unit 21) side is suppressed.

[0052] Further, a partition plate pressing protrusion 51g is integrally provided on the other longitudinal side of the second cover portion 51b and in the vicinity of the support leg portion 51d. This partition plate pressing protrusion 51g corresponds to the first partition plate pressing protrusion in the present invention, and is provided between the support hole 51f of the second cover portion 51b and a second opening 51h described later. The partition plate pressing protrusion 51g protrudes toward the surface 32f of the partition plate 32 by a predetermined height, and in a state in which the support protrusion 32d is inserted into the support hole 51f, the partition plate pressing protrusion 51g is pressed against the surface 32f of the partition plate 32. As a result, the other longitudinal side of the partition plate 32 is fixed to the other longitudinal side of the cover member 50 without rattling, and the blade chamber RM (see FIG. 3) is formed with high precision between the partition plate 32 and the cover member 50. The thickness dimension of the blade chamber RM in the direction of the optical axis P1 is determined by the protruding height of the partition plate pressing protrusion 51g.

[0053] Here, the support protrusion 32d inserted into the inside of the support hole 51f is firmly fixed to the cover member 50 by an adhesive (not shown) so as not to come out. At this time, a predetermined amount of adhesive is poured into the support hole 51f, but even if the amount of adhesive poured into the support hole 51f is large, the adhesive is blocked by the partition plate pressing protrusion 51g. Therefore, the adhesive does not flow into the inside of the blade chamber RM. Therefore, the occurrence of defective products, etc. is effectively suppressed.

[0054] 4, second cover portion 51b is provided with second opening 51h. Second opening 51h corresponds to the opening in the present invention, and is opened and closed by blade member 33. Second opening 51h penetrates second cover portion 51b in its plate thickness direction, and the center portion of second opening 51h is located on optical axis P1 of lens unit 21. Therefore, second opening 51h faces small window 18 (see FIG. 1) provided in frame member 16 of notebook computer 10.

[0055] Here, the second opening 51h of the cover member 50 has the same opening shape and opening area as the first opening 32a of the partition plate 32, and these are overlapped with each other in the direction of the optical axis P1. Then, the shutter portion 33b of the blade member 33 is movable between the first opening 32a and the second opening 51h.

[0056] The first cover portion 51a is provided with a pair of second holes 51k penetrating the cover member 50 in the plate thickness direction. The positioning protrusion 31e of the base member 31 is inserted into one of the second holes 51k. The protrusion 42b of the coil bobbin 42 is inserted into the other second hole 51k. This allows the first cover portion 51a to support both the base member 31 and the coil bobbin 42 with high precision without rattling. This allows the blade member 33 driven by the actuator unit 40 to move smoothly inside the blade chamber RM.

[0057] Furthermore, a second arc hole 51m is provided in a portion of the first cover portion 51a near the second cover portion 51b and between the other second hole portion 51k and the second opening 51h, the second arc hole 51m being hollowed out in a substantially arc shape. The second arc hole 51m is also provided penetrating the cover body 51 in the plate thickness direction, and an output side protrusion 47c (see FIG. 5A) of the drive lever 47 is provided inside the second arc hole 51m so as to be freely movable. The second arc hole 51m has the same shape as the first arc hole 32c of the partition plate 32, and therefore the output side protrusion 47c is not in contact with the cover member 50. This reduces the load on the actuator unit 40.

[0058] Here, the cover member 50 is fixed to the base member 31 by the hook claw 31d and the engagement portion 51c, but the fixing structure is not limited to this, and the cover member 50 can also be fixed to the base member 31 using, for example, a fixing screw or the like.

[0059] In this way, by providing the support legs 51d on the second cover portion 51b and supporting the support legs 51d on the first surface 19a of the module substrate 19, it is not necessary to support (attach) the other longitudinal side of the cover member 50 (the portion of the second cover portion 51b) on the base member 31. That is, it is no longer necessary to provide the base member 31 over the entire longitudinal area of ​​the cover member 50, and the base member 31 can be shortened. In addition, since the base member 31 can be shortened, it is also possible to employ a camera module 20 (see FIG. 3) equipped with a high-resolution imaging element (large) without increasing the size of the camera unit 17.

[0060] Next, the operation of blade drive device 30 forming camera unit 17 formed as above will be described in detail with reference to FIGS. 6A, 6B, 7A and 7B.

[0061] [OPEN → CLOSE] As shown in Fig. 7A, when the blade drive device 30 is in the "OPEN" state and the current to the coil 43 is "OFF", the actuator unit 40 is in the state shown in Fig. 6A. Specifically, the magnet protrusion 46a attracts the first arm portion 41a of the yoke 41 by its magnetic force, that is, the magnet protrusion 46a is disposed in the portion close to the first arm portion 41a. Therefore, the blade member 33 is held in the "OPEN" state as shown in Fig. 7A.

[0062] When a drive current is supplied to the coil 43 and the direction of the drive current flowing through the coil 43 is set to the "forward direction," the first arm 41a becomes the "N pole" and the second arm 41b becomes the "S pole," as shown in Fig. 6A. As a result, the magnet protrusion 46a magnetized to the "N pole" is repelled by the first arm 41a and attracted to the second arm 41b. Therefore, as shown by the arrow R1 in the figure, the magnet lever 45 swings clockwise, and accordingly the drive lever 47 swings counterclockwise as shown by the arrow R2 in the figure.

[0063] As a result, the output-side protrusion 47c of the drive lever 47 moves to the position indicated by the dashed line in Fig. 6A (as shown in Fig. 6B). Therefore, the output-side protrusion 47c, which was disposed on the shutter portion 33b side in the longitudinal direction of the inclined hole 33c as shown in Fig. 7A, moves to the long hole 33a side in the longitudinal direction of the inclined hole 33c as shown in Fig. 7B. Therefore, the blade member 33 moves to the other side in the longitudinal direction of the cover member 50 (the support leg portion 51d side), and the shutter portion 33b closes the first opening 32a of the partition plate 32 and covers and conceals the lens portion 21b as shown in Fig. 7B.

[0064] As a result, light passing through the second opening 51h of the cover member 50 is blocked by the shutter portion 33b of the blade member 33 and does not reach the lens portion 21b. Therefore, even if the camera module 20 operates against the user's intention in this state, images or videos cannot be acquired, and as a result, images or videos unintended by the user are reliably prevented from being acquired and leaked onto the Internet.

[0065] [CLOSE → OPEN] As shown in Fig. 7B, when the blade drive device 30 is in the "CLOSE" state and the current to the coil 43 is "OFF", the actuator unit 40 is in the state shown in Fig. 6B. Specifically, the magnet protrusion 46a attracts the second arm 41b of the yoke 41 by its magnetic force, that is, the magnet protrusion 46a is disposed in the portion close to the second arm 41b. Therefore, the blade member 33 is held in the "CLOSE" state as shown in Fig. 7B.

[0066] Then, when a driving current is supplied to the coil 43 and the direction of the driving current flowing through the coil 43 is set to the "reverse direction," the second arm 41b becomes the "N pole" and the first arm 41a becomes the "S pole" as shown in Fig. 6B. As a result, the magnet protrusion 46a magnetized to the "N pole" is repelled by the second arm 41b and attracted to the first arm 41a. Therefore, as shown by the arrow R3 in the figure, the magnet lever 45 swings counterclockwise, and accordingly the drive lever 47 swings clockwise as shown by the arrow R4 in the figure.

[0067] As a result, the output-side protrusion 47c of the drive lever 47 moves to the position indicated by the dashed line in Fig. 6B (resulting in the state shown in Fig. 6A). Therefore, as shown in Fig. 7B, the output-side protrusion 47c disposed on the long hole 33a side in the longitudinal direction of the inclined hole 33c moves to the shutter portion 33b side in the longitudinal direction of the inclined hole 33c as shown in Fig. 7A. Therefore, the blade member 33 moves to one side in the longitudinal direction of the cover member 50 (the flexible board 44 side), and the shutter portion 33b opens the first opening 32a of the partition plate 32 and opens the lens portion 21b as shown in Fig. 7A.

[0068] As a result, light passing through the second opening 51h of the cover member 50 reaches the lens unit 21b via the first opening 32a of the partition plate 32. Therefore, in this state, the camera module 20 can be operated as intended by the user to capture an image or video.

[0069] As described above in detail, according to this embodiment, the cover member 50 includes the first cover portion 51a fixed to the base member 31 and the second cover portion 51b protruding from the first cover portion 51a in the moving direction of the blade member 33, and the second cover portion 51b is provided with the support leg portion 51d protruding toward the first surface 19a of the module board 19 and supported by the first surface 19a. This eliminates the need to make the base member 31 as long as the cover member 50, and it is possible to shorten (reducing the size) the base member 31 and further reduce the size of the blade drive device 30. Therefore, for example, it is possible to improve the functionality and design of the electronic device (notebook computer 10) by making the frame member 16 (see FIG. 1) that forms the electronic device thinner, etc.

[0070] Furthermore, according to the present embodiment, since the support leg 51d has a pair of reinforcing parts 51e bent in the moving direction of the blade member 33, the rigidity of the support leg 51d can be increased. This makes it possible to prevent the support leg 51d from falling outward (toward the opposite side to the camera module 20). That is, it becomes possible to sufficiently increase the rigidity of the second cover part 51b in the direction of the optical axis P1.

[0071] Furthermore, according to this embodiment, there is provided a partition plate 32 which, together with the cover member 50, forms a blade chamber RM for accommodating the blade member 33, and one longitudinal side of the partition plate 32 is fixed to the base member 31, and the other longitudinal side of the partition plate 32 is fixed to a support hole 51f provided between the second cover portion 51b and the support leg portion 51d. This prevents contact between the drive lever 47 and the blade member 33, and prevents the swinging motion of the drive lever 47 from adversely affecting the linear motion of the blade member 33. It is also possible to prevent the blade member 33 from coming into contact with the lens unit 21, which in turn effectively prevents the lens unit 21 from being scratched, etc.

[0072] Furthermore, according to this embodiment, the partition plate pressing protrusion 51g that is pressed against the partition plate 32 is provided between the support hole 51f and the second opening 51h of the second cover portion 51b, so that the blade chamber RM can be formed with high accuracy between the partition plate 32 and the cover member 50. This allows the blade member 33 to move smoothly throughout the entire movable range of the blade member 33. This makes it possible to reduce the load on the actuator unit 40.

[0073] Next, a second embodiment of the present invention will be described in detail with reference to the drawings. Note that parts having the same functions as those in the first embodiment are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0074] Fig. 8 is a perspective view showing a camera unit according to embodiment 2, and Fig. 9 is an exploded perspective view of the camera unit in Fig. 8. Here, in Fig. 8 and Fig. 9 as well, dashed lines are drawn at the boundary between first cover portion 51a and second cover portion 51b.

[0075] 8 and 9, in camera unit 60 of embodiment 2, first camera module 61 and second camera module 62 are arranged side by side in the longitudinal direction of module substrate 19. Accordingly, the length dimension of blade drive device 30 in the longitudinal direction of module substrate 19 is longer than that of camera unit 17 of embodiment 1 (see FIGS. 2 to 4). Specifically, the length dimensions of partition plate 32, blade member 33 and cover member 50 are longer. However, base member 31 and actuator unit 40 held thereon are the same as those of embodiment 1.

[0076] 9, a third opening 32g is provided between the first opening 32a and the first arc hole 32c in the longitudinal direction of the partition plate 32. Similar to the first opening 32a, the third opening 32g also penetrates the partition plate 32 in the plate thickness direction. The center portion of the third opening 32g is located on the optical axis P2 of the lens unit 62a of the second camera module 62. The center portions of other small windows (not shown) provided in the frame member 16 of the notebook computer 10 are also located on the optical axis P2.

[0077] 9, between the shutter portion 33b and the inclined hole 33c in the longitudinal direction of the blade member 33, the blade opening 33d and the other shutter portion 33e are arranged side by side. The blade opening 33d is arranged on the shutter portion 33b side, and the other shutter portion 33e is arranged on the inclined hole 33c side. When the blade drive device 30 is in the "OPEN" state, the blade opening 33d is arranged on the optical axis P2, and the lens unit 62a is opened. On the other hand, when the blade drive device 30 is in the "CLOSE" state, the other shutter portion 33e is arranged on the optical axis P2, and the lens unit 62a is blocked. The opening and closing operations of the first and second camera modules 61 and 62 are performed in synchronization with the reciprocating movement of the blade member 33.

[0078] 9, another partition plate pressing protrusion 51n and a fourth opening 51p are provided side by side between the second opening 51h and the second arc hole 51m in the longitudinal direction of the cover member 50. Specifically, the other partition plate pressing protrusion 51n and the fourth opening 51p are both provided in the second cover portion 51b, and the second opening 51h and the fourth opening 51p are provided side by side in the longitudinal direction of the second cover portion 51b. The fourth opening 51p also corresponds to an opening in the present invention.

[0079] Another partition plate pressing protrusion 51n is provided between the second opening 51h and the fourth opening 51p in the longitudinal direction of the cover member 50. That is, the other partition plate pressing protrusion 51n is disposed on the second opening 51h side, and the fourth opening 51p is disposed on the second arc hole 51m side. Here, the other partition plate pressing protrusion 51n corresponds to the second partition plate pressing protrusion in the present invention.

[0080] The other partition plate pressing protrusions 51n protrude beyond the blade opening 33d of the blade member 33 and are pressed against the surface 32f between the first opening 32a and the third opening 32g of the partition plate 32. As a result, the blade chamber RM (see FIG. 3) is formed with good precision between the partition plate 32 and the cover member 50 in this portion (the portion of the fourth opening 51p). The protruding height of the other partition plate pressing protrusions 51n is the same as the protruding height of the partition plate pressing protrusions 51g. The center portion of the fourth opening 51p is disposed on the optical axis P2.

[0081] 9, a pair of reinforcing columns 51s are provided in the longitudinal direction of the cover member 50 between a pair of engaging portions 51c arranged opposite each other in the width direction of the first cover portion 51a and the support legs 51d of the second cover portion 51b. These reinforcing columns 51s are provided on the second cover portion 51b and arranged opposite each other in the width direction of the cover member 50, similar to the pair of engaging portions 51c. The pair of reinforcing columns 51s extend toward the first surface 19a of the module substrate 19, similar to the pair of engaging portions 51c and the support legs 51d.

[0082] The tip sides of the pair of reinforcing columns 51s are supported in contact with the first surface 19a as shown in Fig. 8. Each reinforcing column 51s is integrally provided with a recess 51t (only one of which is shown in the figure) recessed toward the other reinforcing column 51s, thereby ensuring sufficient strength of each reinforcing column 51s. Therefore, even if a pressing force acts on the cover member 50 from the direction of the optical axes P1 and P2, the cover member 50 is effectively prevented from being distorted and the blade members 33 from becoming inoperable.

[0083] Here, in the second embodiment, as described above, the notebook computer 10 (see FIG. 1) is provided with the first camera module 61 and the second camera module 62, and is provided with the blade drive device 30 that opens and closes these modules. However, instead of this, the following [Modification 1] and [Modification 2] are also possible.

[0084] [Variation 1] In the first modification of the second embodiment, an LED light 70 (see the symbol in parentheses in FIG. 9) is provided next to the first camera module 61. In this case, a pair of small windows 18 (only one is shown in the figure) is provided in the frame member 16 (see FIG. 1) of the notebook computer 10, the first camera module 61 faces one of the small windows 18, and the LED light 70 faces the other small window 18. In this first modification, even if the notebook computer 10 is used in a dark environment, it is possible to brightly illuminate the user, and it is possible to hold an online conference while providing a clear image. In other words, the object to be opened and closed by the blade drive device 30 is not limited to a so-called "detection device" such as a camera, but may be a so-called "light-emitting device" such as an LED light.

[0085] [Variation 2] In addition, in the second modification of the second embodiment, an LED light 70 and another LED light 80 (see the symbols in parentheses in FIG. 9) are arranged side by side instead of the first and second camera modules 61, 62. In this case, similar to the first modification, a pair of small windows 18 are provided in the frame member 16 of the notebook computer 10, and the LED light 70 and the other LED light 80 face each of the small windows 18. In the second modification, the user can easily grasp the operating state of the notebook computer 10, for example, whether or not it is in a state of communication with the network, and whether or not the built-in battery has a sufficient remaining charge.

[0086] Furthermore, these LED lights 70, 80 also have a shape similar to the camera module described above (see FIG. 9), so by operating the blade drive device 30, the LED lights 70, 80 can be blocked, giving the user a sense of security that no images are being taken.

[0087] In the second embodiment including the modified examples 1 and 2 formed as described above, the same effects as those of the first embodiment can be achieved. In addition, in the second cover portion 51b, the second opening 51h and the fourth opening 51p are provided so as to be aligned in the longitudinal direction, and another partition plate pressing protrusion 51n that is pressed against the partition plate 32 is provided between the second opening 51h and the fourth opening 51p. Therefore, even if the blade member 33 and the cover member 50 are lengthened, the blade chamber RM is accurately formed between the partition plate 32 and the cover member 50, and the smooth operation of the blade member 33 is ensured.

[0088] It is also possible to realize a pair of camera modules as a detection device, a pair of LED lights as a light-emitting device, and a combination of a camera module as a detection device and an LED light as a light-emitting device. This makes it possible to easily accommodate the diversification of electronic devices such as the notebook computer 10.

[0089] Next, a third embodiment of the present invention will be described in detail with reference to the drawings. Note that parts having the same functions as those in the first embodiment are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0090] Fig. 10 is an exploded perspective view showing the camera unit of embodiment 3, Fig. 11A is an explanatory diagram of the operation of the photoreflector (OPEN), and Fig. 11B is an explanatory diagram of the operation of the photoreflector (CLOSE). Here, in Fig. 10 as well, the boundary between the first cover part 51a and the second cover part 51b is indicated by a dashed line.

[0091] 10, 11A, and 11B, the camera unit 90 of the third embodiment has a base member 91 with a different shape than that of the first embodiment. Specifically, a photoreflector accommodating recess 91a is provided on one longitudinal side (the left side in the figures) of the base member 91. Thus, the length dimension of the base member 91 in the longitudinal direction of the module board 19 is longer than that of the base member 31 of the first embodiment (see FIG. 2). Specifically, the photoreflector accommodating recess 91a is disposed on the opposite side of the actuator accommodating recess 31a from the lever accommodating recess 31c.

[0092] A photoreflector (reflective photosensor) 92 is accommodated inside the photoreflector accommodating recess 91a. The photoreflector 92 corresponds to the blade sensor of the present invention, and as shown by the dashed arrow in Fig. 11B, it irradiates infrared light toward the cover member 50 (see Fig. 10) and receives the infrared light that it irradiates and reflects, thereby detecting whether or not there is an obstacle in the irradiation direction of the photoreflector 92 (upper side in the figure). The drive current for the photoreflector 92 is supplied from the module substrate 19 via the flexible substrate 44.

[0093] 10, 11A, and 11B, a sensor cover 33f is integrally provided on one longitudinal side (left side in the figure) of the blade member 33, which can cover the photoreflector 92 in response to the reciprocating movement of the blade member 33. The sensor cover 33f covers the photoreflector 92 when the blade drive device 30 is in the "OPEN" state as shown in FIG. 11A, and opens the photoreflector 92 when the blade drive device 30 is in the "CLOSE" state as shown in FIG. 11B. Here, the portion of the cover member 50 facing the photoreflector 92 is black (not shown) and absorbs most of the infrared light irradiated from the photoreflector 92. Therefore, when the blade drive device 30 is in the "CLOSE" state (see FIG. 11B), the amount of light received by the photoreflector 92 is reduced.

[0094] In contrast, the portion of the sensor cover 33f facing the photoreflector 92 is red (not shown), the same color as the infrared light, and is adapted to reflect most of the infrared light irradiated from the photoreflector 92. Therefore, when the blade drive device 30 is in the "OPEN" state (see FIG. 11A), the amount of light received by the photoreflector 92 is large. In this way, by detecting the difference in the amount of light that occurs between the "OPEN" state and the "CLOSE" state, it is possible to detect the "OPEN" state or the "CLOSE" state of the blade drive device 30. In other words, the photoreflector 92 provided on the base member 91 detects whether the sensor cover 33f provided on the blade member 33 overlaps with the photoreflector 92 (difference in the amount of light), thereby detecting the open / closed state of the blade member 33.

[0095] 10, 11A, and 11B, the increased length of the blade member 33 requires some measure to move the blade member 33 back and forth smoothly without shaking. In this embodiment, another long hole 33g similar to the long hole 33a is provided between the sensor cover 33f and the long hole 33a in the longitudinal direction of the blade member 33, and the positioning protrusion 31e is adapted to slide freely inside the other long hole 33g. This allows one longitudinal side of the blade member 33 to be guided by the positioning protrusion 31e, allowing the entire blade member 33 to move back and forth smoothly without shaking.

[0096] In addition, since base member 91 is longer on one side in the longitudinal direction, an insertion protrusion 91b is provided near photoreflector accommodating recess 91a to be inserted and fixed into third hole 51v (see FIG. 10) provided in cover member 50. This makes it possible to align the entire longitudinal area of ​​cover member 50 straight along the longitudinal direction of module board 19. In this way, in the third embodiment, by providing photoreflector accommodating recess 91a and photoreflector 92 accommodated therein, the length dimensions of both blade member 33 and cover member 50 are increased.

[0097] The third embodiment formed as above can also achieve the same effects as the first embodiment. In addition, in the third embodiment, a photoreflector 92 that detects the open / closed state of the blade member 33 is provided on the base member 91. The photoreflector 92 detects whether the sensor cover 33f provided on one side of the blade member 33 in the longitudinal direction overlaps with the photoreflector 92. This makes it possible to provide feedback to the notebook computer 10 as to whether the blade member 33 is in the "OPEN" state or the "CLOSE" state, and thus makes it possible to accurately manage the operating state of the blade drive device 30.

[0098] The present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention. For example, in the above-described embodiments, the electronic device is a notebook computer 10, but the present invention is not limited to this, and can be applied to smartphones, tablet terminals, and the like.

[0099] Moreover, the camera module 20, the first camera module 61, and the second camera module 62 include any type of camera, such as an infrared camera or an imaging camera controlled by a USB connection. Furthermore, a light receiving sensor used to automatically adjust the illuminance of the backlight of a display forming an electronic device, or a temperature sensor mounted on an electronic device installed in a storefront to measure the body temperature of a customer, may be opened and closed by the blade drive device 30. Moreover, in the above-mentioned first embodiment, a light emitting device such as an LED light that illuminates the keyboard section 13 (see FIG. 1) may be adopted instead of the camera module 20. As a result, a light emitting device such as an LED light that has a shape similar to that of a camera module is shielded by the blade drive device 30, so that the user can feel secure that no image is being taken.

[0100] Furthermore, in order to clearly inform the outside that the blade member 33 is in the "CLOSE" state, the word "closed" can be written on the surface of the shutter portion 33b (33e) or the surface of the shutter portion 33b (33e) can be colored in a highly visible color such as red. This makes it easy for the outside to recognize that the user is protected from unintended capture of images or videos.

[0101] In addition, the material, shape, dimensions, number, installation location, etc. of each component in each of the above-mentioned embodiments are arbitrary as long as the present invention can be achieved, and are not limited to the above-mentioned embodiments. [Explanation of symbols]

[0102] Reference Signs List 10...notebook computer, 11...key, 12...touchpad, 13...keyboard section, 14...display section, 15...display, 16...frame member, 17...camera unit, 18...small window, 19...module board, 19a...first surface (fixed surface), 19b...second surface, 20...camera module, 21...lens unit, 21a...base, 21b...lens section, 22...fixed member, 30...blade drive device, 31...base member, 31a...actuator accommodating recess, 31b...partition plate support section, 31c...lever accommodating recess, 31d...hook, 31e...positioning protrusion , 31f... guide projection, 31g... support pin, 31h... oscillation shaft, 32... partition plate, 32a... first opening, 32b... first hole portion, 32c... first arc hole, 32d... support projection, 32e... back surface, 32f... front surface, 32g... third opening, 33... blade member, 33a... long hole, 33b... shutter portion, 33c... inclined hole, 33d... blade opening, 33e... other shutter portion, 33f... sensor cover portion, 33g... other long hole, 40... actuator unit (actuator), 41... yoke, 41a... first arm portion, 41b... second arm portion, 42... coil bobbin, 42a... insertion hole, 42b... protrusion , 43... coil, 44... flexible circuit board, 45... magnet lever, 45a... lever body, 45b... drive claw, 46... rotor magnet, 46a... magnet protrusion, 47... drive lever, 47a... lever body, 47b... input side convex portion, 47c... output side convex portion, 47d... hole, 50... cover member, 51... cover body, 51a... first cover portion, 51b... second cover portion, 51c... engagement portion, 51d... support leg portion, 51e... reinforcement portion, 51f... support hole, 51g... partition plate pressing convex portion (first partition plate pressing convex portion), 51h... second opening (opening portion), 51k... second hole portion, 5 1m...second arc hole, 51n...other partition plate holding protrusion (second partition plate holding protrusion), 51p...fourth opening (opening), 51s...reinforcing column, 51t...recess, 51v...third hole, 60...camera unit, 61...first camera module, 62...second camera module, 62a...lens unit, 70, 80...LED light, 90...camera unit, 91...base member, 91a...photoreflector accommodating recess, 91b...insertion protrusion, 92...photoreflector (blade sensor), P1, P2...optical axis, RM...blade chamber, T1...first connection terminal, T2...second connection terminal

Claims

1. A blade drive device having a blade member that opens and closes an opening, an actuator for reciprocating the blade member; a base member that holds the actuator and is fixed to a fixing surface; a cover member having a length dimension greater than a length dimension of the base member in a moving direction of the blade member; having The cover member is A first cover portion fixed to the base member; a second cover portion protruding from the first cover portion in a moving direction of the blade member and having the opening; a support leg portion that protrudes from the second cover portion toward the fixing surface and is supported by the fixing surface; The present invention is characterized in that it comprises Blade drive device.

2. The blade drive device according to claim 1, The support leg has a reinforcing portion bent in the moving direction of the blade member. Blade drive device.

3. The blade drive device according to claim 1 or 2, a partition plate is provided which, together with the cover member, forms a blade chamber for accommodating the blade member; One longitudinal side of the partition plate is fixed to the base member, The other side of the partition plate in the longitudinal direction is fixed to a support hole provided between the second cover portion and the support leg portion. Blade drive device.

4. The blade drive device according to claim 3, A first partition plate pressing protrusion that is pressed against the partition plate is provided between the support hole and the opening of the second cover portion. Blade drive device.

5. The blade drive device according to claim 4, The second cover portion is provided with a pair of the openings aligned in a longitudinal direction thereof, A second partition plate pressing protrusion that is pressed against the partition plate is provided between the pair of openings. Blade drive device.

6. The blade drive device according to any one of claims 1 to 5, a blade sensor that detects an open / closed state of the blade member is provided on the base member; The blade sensor detects whether or not a sensor cover provided on one side of the blade member in the longitudinal direction overlaps the blade sensor. Blade drive device.

Images