Blade opening / closing device

Abstract

To improve accuracy that detects forgetting to attach a blade plate.SOLUTION: A blade opening / closing device 30 of one embodiment comprises: an aperture plate 33 that has an opening part 330 located on an optical axis of a lens, and extends in a cross direction crossing the optical axis direction of the lens; a blade member 34 that is provided movably in the cross direction; a driving unit 35 that causes the blade plate to move to any one of a closed position when the opening part is closed, and an opened position when the opening part is opened; a transmission member 37 that transmits driving force generated by the driving unit to the blade member; a main body part 31 to which the aperture plate, the blade member, the driving unit and the transmission member are attached; and a restriction part that restricts a movement of the blade member to the cross direction. In the optical axis direction, the aperture plate and the transmission member are provided between the main body part and the blade member. The main body part has an upper surface 313 serving as a facing surface facing the aperture plate and the transmission member. The restriction part is provided in the upper surface.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a blade opening and closing device. [Background technology]

[0002] Conventionally, there has been known a light amount adjusting device for a camera that adjusts an aperture formed on a substrate to a small aperture state by using multiple blades. Patent Document 1 discloses a light amount adjusting device in which multiple blades are movably supported on a substrate. In the device of Patent Document 1, a sliding plate is provided between each blade to prevent malfunction of each blade. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-8894 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the device of Patent Document 1, if the sliding plate is not attached during manufacturing, the blades will interfere with each other when they move, causing malfunction. For this reason, if a malfunction occurs during a performance inspection, it is determined that the product is defective because the sliding plate is not attached.

[0005] However, there is a demand for improving the accuracy of detecting when a sliding plate is left unattached. [Means for solving the problem]

[0006] A blade opening / closing device according to one embodiment includes an opening located on the optical axis of an optical unit, an extension member extending in a cross direction crossing the optical axis direction of the optical unit, a blade member movable in the cross direction to open and close the opening, a drive unit moving the blade member to either a closed position when the opening is closed or an open position when the opening is opened, a transmission member transmitting a driving force generated by the drive unit to the blade member, a main body in which the extension member, the blade member, the drive unit, and the transmission member are provided, and a restricting unit restricting the movement of the blade member in the cross direction. The extension member and the transmission member are provided between the main body and the blade member in the optical axis direction. The main body has an opposing surface facing the extension member and the transmission member. The restricting unit is provided on the opposing surface. Effect of the Invention

[0007] According to the present invention, when the extension member and the transmission member are not attached, the movement of the blade member can be restricted. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an overall configuration diagram showing a notebook computer incorporating a blade opening / closing device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an external perspective view of the blade opening and closing device. [Diagram 3] FIG. 3 is an exploded perspective view of the blade opening and closing device. [Figure 4] FIG. 4 is an external perspective view of the main body. [Figure 5A] FIG. 5A is a plan view showing the external appearance of the main body and the transmission mechanism when the blade members are in a closed position. [Figure 5B] FIG. 5B is a plan view showing the external appearance of the main body and the transmission mechanism when the blade members are in the open position. [Figure 6A] FIG. 6A is a plan view showing the external appearance of the main body and the transmission mechanism when the partition plate is not attached. [Figure 6B]FIG. 6B is a plan view showing the external appearance of the main body and the transmission mechanism when the partition plate is not attached. [Figure 6C] FIG. 6C is an external perspective view of the main body and the transmission mechanism when the partition plate is not attached. [Figure 7A] FIG. 7A is an external perspective view of the main body and the blade members when the aperture plate is not attached. [Figure 7B] FIG. 7B is an external perspective view of the main body and the blade members when the aperture plate is not attached. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a blade opening / closing device and an electronic device including the blade opening / closing device according to embodiments of the present invention will be described in detail with reference to the drawings.

[0010] <Electronic equipment> FIG. 1 is a diagram showing the appearance of a notebook computer 10 as an example of an electronic device. The notebook computer 10 has an input unit 12, such as a keyboard, on which input operations are performed, and a display unit 13 on which information is displayed. The display unit 13 has a frame 14. A hole 15 is formed in the frame 14. Also, a camera unit 16 and a blade opening and closing device 30, the details of which will be described later, are incorporated in the frame 14. That is, the notebook computer 10 is provided with the blade opening and closing device 30. The blade opening and closing device 30 is incorporated in the notebook computer 10 by being attached to the camera unit 16. This realizes the notebook computer 10 with a camera function.

[0011] Incidentally, the electronic device equipped with the blade opening and closing device 30 is not limited to the notebook computer 10, and may be, for example, an electronic device equipped with a camera function, such as a smart speaker or a home security camera.

[0012] <Camera unit> 2 is an external perspective view of the blade opening and closing device 30 provided in the notebook computer 10. The camera unit 16 provided in the notebook computer 10 is housed in the blade opening and closing device 30. The camera unit 16 includes a lens 23. The lens 23 is attached to the frame 14 in accordance with the position where the hole 15 shown in FIG. 1 is formed. The lens 23 has an optical axis K. The direction in which the optical axis K extends is the optical axis direction, which is indicated by the arrow Z. Light from the outside is incident on the lens 23 from the tip side of the arrow Z toward the base end side.

[0013] <Blade opening / closing device 30> FIG. 3 is an exploded perspective view of the blade opening / closing device 30. The blade opening / closing device 30 extends along the direction indicated by the arrow X. The direction indicated by the arrow X indicates a direction perpendicular to the arrow Z, which is the optical axis direction, and is an example of a cross direction that crosses the optical axis direction. Therefore, the cross direction corresponds to the longitudinal direction when the blade opening / closing device 30 is viewed from the optical axis direction. The cross direction is also a direction parallel to the direction in which the blade members 34, the details of which will be described later, move. The direction perpendicular to the direction of the arrow X (cross direction) and the direction of the arrow Z (optical axis direction) is indicated by the arrow Y. The direction of the arrow Y corresponds to the lateral direction when the blade opening / closing device 30 is viewed from the optical axis direction.

[0014] In the following description, the +Z direction may be referred to as the upward direction, the -Z direction as the downward direction, the +X direction as the right direction, the -X direction as the left direction, the +Y direction as the forward direction, and the -Y direction as the backward direction.

[0015] The blade opening and closing device 30 includes a main body portion 31 , an aperture plate 33 , a blade member 34 , a drive portion 35 , a cover member 36 , a transmission member 37 , and a restriction portion 50 .

[0016] <Main body 31> The main body 31 is provided with an aperture plate 33, which will be described in detail later, a blade member 34, a drive unit 35, a cover member 36, and a transmission member 37. The lower surface of the main body 31 is fixed to the inside of the notebook computer 10, which is an electronic device, by adhesive or the like. The main body 31 may be detachably attached to the notebook computer 10.

[0017] When viewed from the optical axis direction, the main body 31 has a rectangular shape whose length along the intersecting direction is longer than its length along the front-rear direction intersecting the optical axis direction and the intersecting direction. The main body 31 has a first housing section 310 and a second housing section 311. The first housing section 310 is a recess formed on the left side of the face (upper surface) 313 on the upper side of the main body 31. The first housing section 310 houses the drive section 35 described later. The second housing section 311 is a recess formed on the right side of the lower surface of the main body 31. The second housing section 311 houses the camera unit 16. A main body opening 317 is formed on the upper surface of the second housing section 311. The main body opening 317 penetrates the upper upper surface 313 of the second housing section 311 from inside to outside along the optical axis direction. The center of the main body opening 317 is located on the optical axis K of the lens 23.

[0018] The main body 31 has an upper surface 313 which is an opposing surface facing the aperture plate 33 and the transmission member 37 described later in the optical axis direction. The upper surface 313 of the main body 31 is provided with a restricting portion 50 described later, bosses 318a, 318b, 318c, 318d, and a guide pin 319. Specifically, the boss 318a is provided on the upper surface 313 on the left side with respect to the first housing portion 310. The bosses 318b, 318c, 318d are provided in the first housing portion 310. The boss 318d is provided on a second restricting plane 524 (see FIG. 4) described later which is included in the restricting portion 50 provided on the upper surface 313. The guide pin 319 is provided on a first restricting plane 510 (see FIG. 4) which is included in the restricting portion 50 provided on the right side with respect to the first housing portion 310. The bosses 318a, 318b, 318c, and 318d and the guide pin 319 are protruding parts that protrude upward.

[0019] Among the side surfaces on the front side of the main body 31, protrusions 42 are provided on the left and right sides with respect to the second housing portion 311. The protrusions 42 protrude forward. More specifically, the protrusions 42 are formed with an inclination such that the lower end protrudes further forward than the upper end. Note that protrusions similar to the protrusions 42 are also provided on the rear side surface and the left side surface of the main body 31, but are not shown in the figure. However, the protrusion provided on the left side surface of the main body 31 protrudes toward the left side.

[0020] <Caliber plate 33> The aperture plate 33 is disposed on the main body 31. That is, the upper surface 313 of the main body 31 described above is the surface facing the aperture plate 33. The aperture plate 33 is a plate-like elongated member having a predetermined thickness in the direction of the optical axis K and extending in the left-right direction (i.e., the intersecting direction). The intersecting length of the aperture plate 33 is equal to or approximately equal to the intersecting length of the main body 31.

[0021] The aperture plate 33 is formed with an opening 330, a first guide hole 331, a second guide hole 332, and mounting holes 333, 334, and 335. Bosses 318a and 318d are inserted into the mounting holes 333 and 334, respectively, and a guide pin 319 is inserted into the mounting hole 335.

[0022] The opening 330 penetrates the aperture plate 33 in the optical axis direction. The opening 330 is formed so as to be located above the lens 23 of the camera unit 16. That is, the center of the opening 330 is located on the optical axis K of the lens 23 and the center of the body opening 317 formed in the second housing portion 311. Therefore, it can be said that the opening 330 is formed at a position that overlaps with the body opening 317 formed in the body portion 31 along the optical axis direction. The opening 330 functions as a diaphragm (aperture) that determines the amount of light incident on the lens 23.

[0023] When viewed from the optical axis direction, first guide hole 331 is formed in a straight line extending in the intersecting direction. An insertion portion 342 of blade member 34 (described later) is inserted into first guide hole 331. First guide hole 331 guides the movement of insertion portion 342 in the intersecting direction. A boss 369 (described later) is inserted into first guide hole 331 near the left end.

[0024] The second guide hole 332 is formed in an arc shape when viewed from the optical axis direction. One end (rear side) of the second guide hole 332 is connected to the front side surface of the first guide hole 331. A connecting portion 357 of the drive unit 35 described later is inserted into the second guide hole 332. The second guide hole 332 guides the operation of this connecting portion 357.

[0025] <Blade part 34> The blade member 34 is formed in a plate shape having a predetermined thickness in the optical axis direction. When viewed from the optical axis direction, the blade member 34 is formed in a rectangular shape whose length in the intersecting direction is longer than its length in the front-rear direction. The blade member 34 is disposed on the aperture plate 33 so as to be movable along the intersecting direction by a drive unit 35 described later. That is, the aperture plate 33 is provided between the main body 31 and the blade member 34 in the optical axis direction.

[0026] The length of the blade member 34 in the cross direction is shorter than the length of the aperture plate 33 in the cross direction. Therefore, the movement of the blade member 34 switches the opening 330 formed in the aperture plate 33 between an open state and a closed (shielded) state. That is, the blade member 34 is provided on the aperture plate 33, which is an extension member, so as to be movable in the cross direction, and opens and closes the opening 330.

[0027] A through hole (not shown) is formed near the left end of the blade member 34. An engagement member 340 is attached to this through hole. The engagement member 340 has a head 341 and an insertion portion 342. The head 341 is located above the blade member 34. The insertion portion 342 extends downward from the head 341 through the through hole and can be inserted into a second insertion hole 379 of a lever blade 371 described later.

[0028] A guide hole 343 is formed on the right and forward side of the engagement member 340, which is a long hole that penetrates the blade member 34 along the optical axis direction and has a long side extending along the intersecting direction. A guide pin 319 is inserted into the guide hole 343. Further, a long hole 344 is formed on the rear side of the guide hole 343, which penetrates the blade member 34 along the optical axis direction and has a long side extending along the intersecting direction.

[0029] With the above-mentioned configuration, the blade member 34 is moved in the intersecting direction by the drive unit 35 described below. Specifically, when the blade member 34 moves to the right and the right end 34a of the blade member 34 is positioned to the right of the right end 330a of the opening 330, the opening 330 is closed. The position of the blade member 34 at this time is sometimes called the closed position. When the blade member 34 is in the closed position, the blade member 34 blocks light passing through the opening 330 and the main body opening 317 toward the lens 23. As a result, no light is incident on the lens 23.

[0030] Furthermore, when the blade member 34 moves leftward and the right end 34a of the blade member 34 is positioned to the left of the left end 330b of the opening 330, the opening 330 is opened. The position of the blade member 34 at this time is sometimes called the open position. When the blade member 34 is in the open position, light from the outside passes through an opening 361 of the cover member 36, an opening 330 of the aperture plate 33, and a main body opening 317 of the main body 31, which will be described later, and enters the lens 23. Note that FIG. 2 shows the blade opening / closing device 30 when the blade member 34 is in the open position, and FIG. 3 shows the blade opening / closing device 30 when the blade member 34 is in the closed position.

[0031] <Cover member 36> The cover member 36 is disposed above the blade member 34. That is, the cover member 36 covers the camera unit 16, the main body 31, the aperture plate 33, the blade member 34, and the drive unit 35, the details of which will be described later, from above, which are included in the blade opening / closing device 30. The cover member 36 has an upper plate portion 360 that constitutes the upper end portion of the blade opening / closing device 30. The upper plate portion 360 has a predetermined thickness in the optical axis direction and extends in the intersecting direction. When viewed from the optical axis direction, the upper plate portion 360 has a rectangular outer shape whose length in the intersecting direction is longer than its length in the front-rear direction. In other words, the cover member 36 is a covering member that extends along the intersecting direction and covers the blade member 34. As described above, since the blade member 34 is disposed on the aperture plate 33, it can be said that the blade member 34 moves along the intersecting direction within the space surrounded by the cover member 36, which is a covering member, and the aperture plate 33, which is an extension member. The length of the upper plate portion 360 in the cross direction is longer than the length of the aperture plate 33 in the left-right direction.

[0032] The upper plate portion 360 is formed with an opening 361, a guide hole 362, and mounting holes 364, 365, and 366. The opening 361 penetrates the upper plate portion 360 in the optical axis direction. The center of the opening 361 is located on the optical axis K of the lens 23. In other words, the opening 361 is located above the opening 330 of the aperture plate 33 and the main body opening 317 of the second housing portion 311. A boss 318a, a boss 369 described later, and a guide pin 319 are inserted into the mounting holes 364, 365, and 366, respectively.

[0033] The guide hole 362 extends linearly along the intersecting direction when viewed from the optical axis direction. The guide hole 362 is formed above the first guide hole 331 formed in the aperture plate 33 described above. The guide hole 362 guides the head 341 of the blade member 34 described above in the intersecting direction.

[0034] A plurality of mounting portions 367 extending downward are provided on the front end, rear end, and left end of the upper plate portion 360. When viewed from the front-rear direction or the left-right direction, each mounting portion 367 is formed in a rectangular frame shape. The plurality of mounting portions 367 engage with the protrusions 42 formed on the main body portion 31, whereby the cover member 36 is attached to the main body portion 31 from above.

[0035] <Drive unit 35> The driving unit 35 moves the blade member 34 to either a closed position where the opening 330 is closed or an open position where the opening 330 is opened. The driving unit 35 has a rotor magnet 351, a yoke 352, a coil 353, and a terminal plate 368 attached to a mounting member 350. The mounting member 350 to which the rotor magnet 351, the yoke 352, the coil 353, and the terminal plate 368 are attached is accommodated in the first accommodating portion 310, whereby the driving unit 35 is attached to the main body portion 31. When the mounting member 350 is accommodated in the first accommodating portion 310, the outer shape of the mounting member 350 can be considered to form a part of the outer shape of the main body portion 31.

[0036] An attachment hole 356, a boss 369, and a part of a restricting portion 50 (described later) are formed on an upper surface (top surface) 355 of the attachment member 350. As described above, the outer shape of the attachment member 350 forms part of the outer shape of the main body 31, and therefore, it can be said that the part of the restricting portion 50 formed on the attachment member 350 is formed on the main body 31.

[0037] The mounting hole 356 is a through hole that passes through the upper surface 355 in the vertical direction, and a boss 318b formed in the first housing portion 310 is inserted into the mounting hole 356. The boss 369 is a protrusion that protrudes upward from the upper surface 355. In addition, an end portion 358 on the right side of the upper surface 355 is formed in a shape that is cut out in an arc. The end portion 358 is formed in a shape that overlaps in the vertical direction with the side wall surface of the arc-shaped second guide hole 332 formed in the above-mentioned aperture plate 33.

[0038] Coil 353 is a winding portion that is attached by being wound around a winding attachment portion formed on attachment member 350. Coil 353 is electrically connected to terminal plate 368. Terminal plate 368 is a flat plate-shaped member, and is attached to the front side surface of attachment member 350 by fixing portion 359. Terminal plate 368 is electrically connected to a power supply unit (not shown).

[0039] The yoke 352 is made of a magnetic material and has an arm portion 352A and an arm portion 352B. The arm portions 352A and 352B of the yoke 352 are housed in the above-mentioned mounting member 350. When a current is passed through the coil 353, the arm portions 352A and 352B are magnetized to mutually different polarities.

[0040] The rotor magnet 351 is housed in the mounting member 350. The rotor magnet 351 housed in the mounting member 350 is disposed between the arm portion 352A and the arm portion 352B of the yoke 352. The rotor magnet 351 is made of a magnet having different magnetic poles in the circumferential direction. When the coil 353 is energized, the arm portion 352A and the arm portion 352B are magnetized with different polarities, and a repulsive force or an attractive force acts on each magnet of the rotor magnet 351. Therefore, when the coil 353 is energized, the rotor magnet 351 rotates. The direction of rotation of the rotor magnet 351 can be changed by changing the direction of the current flowing through the coil 353.

[0041] A lever member 354 is attached to the upper end of rotor magnet 351. Lever member 354 extends radially outward from rotor magnet 351. Lever member 354 is provided with a hook-shaped connecting portion 357. When rotor magnet 351 rotates as described above, connecting portion 357 moves along end 358 formed in an arc shape on upper surface 355.

[0042] <Transmission component 37> The transmission member 37 is a member that transmits a rotational driving force generated by the rotation of the rotor magnet 351 of the drive unit 35 to the blade member 34, thereby moving the blade member 34 along the intersecting direction. The transmission member 37 has a partition plate 370 and a lever blade 371, and is provided between the main body 31 and the aperture plate 33 in the optical axis direction. In other words, the transmission member 37 is provided between the main body 31 and the blade member 34 in the optical axis direction.

[0043] <Partition 370> The partition plate 370 is disposed above the rotor magnet 351, that is, on the upper end of the drive unit 35 and the upper surface 313 of the main body unit 31. Specifically, the partition plate 370 is disposed on a placement surface 523 (see FIG. 4) described later. The partition plate 370 separates the internal space of the first housing portion 310 formed in the main body unit 31 from the space in which the lever blade 371 is located. That is, the partition plate 370 is provided between the lever blade 371 and the main body unit 31 in the optical axis direction. The partition plate 370 is formed with a third guide hole 372, a fourth guide hole 373, and through holes 374 and 375. The through holes 374 and 375 are through holes that penetrate the partition plate 370 in the vertical direction. The boss 369 is inserted into the through hole 374, and the boss 318d is inserted into the through hole 375.

[0044] The third guide hole 372 is formed linearly along the intersecting direction when viewed from the optical axis direction. The third guide hole 372 is formed below the first guide hole 331 of the aperture plate 33. The insertion portion 342 of the blade member 34 is inserted into the third guide hole 372. The third guide hole 372 guides the movement of the insertion portion 342 in the intersecting direction.

[0045] The fourth guide hole 373 is formed in an arc shape when viewed from the optical axis direction. The fourth guide hole 373 is formed below the second guide hole 332 of the aperture plate 33. The above-mentioned connecting portion 357 is inserted into the fourth guide hole 373. The fourth guide hole 373 guides the movement of this connecting portion 357.

[0046] <Lever blade 371> Lever blade 371 is disposed above partition plate 370. Lever blade 371 is formed by plate-shaped first portion 371a and second portion 371b. One end of first portion 371a and one end of second portion 371b are connected to each other. First portion 371a and second portion 371b extend in different directions on a plane intersecting with the vertical direction such that the other end of first portion 371a and the other end of second portion 371b extend in different directions on a plane intersecting with the vertical direction.

[0047] Lever blade 371 has an axis hole 377, a first insertion hole 378, and a second insertion hole 379 on its surface. A boss 318d is inserted into axis hole 377, which is provided at a position where first portion 371a and second portion 371b are connected. Lever blade 371 is provided rotatably around boss 318d. That is, boss 318d functions as a rotation axis when lever blade 371 rotates.

[0048] The first insertion hole 378 is formed in the first portion 371a and is a through hole that passes through the first portion 371a in the up-down direction. The connecting portion 357 is inserted into the first insertion hole 378. The second insertion hole 379 is formed in the second portion 371b and is a through hole that passes through the second portion 371b in the up-down direction. The insertion portion 342 of the blade member 34 is inserted into the second insertion hole 379.

[0049] <Regulations Section 50> The restricting portion 50 restricts the movement of the blade members 34 in the cross direction in the event that an error occurs such that the aperture plate 33 or the partition plate 370 is not attached during assembly and manufacturing of the blade opening and closing device 30. The restricting portion 50 is provided on the upper surface 313 of the main body portion 31.

[0050] Fig. 4 is a perspective view of main body portion 31 and mounting member 350 housed in main body portion 31. As shown in Fig. 4, restricting portion 50 has first restricting portion 51 and second restricting portion 52. First restricting portion 51 is provided on upper surface 313 of main body portion 31. First restricting portion 51 is formed on the left side of main body opening 317, and restricts movement of blade member 34 in the intersecting direction by contacting blade member 34.

[0051] The second restricting portion 52 is provided on the upper surface 313 of the main body portion 31 and the upper surface 355 of the mounting member 350. The second restricting portion 52 is formed on the left side of the first restricting portion 51 and restricts the movement of the lever blade 371. That is, the second restricting portion 52 comes into contact with the lever blade 371 of the transmission member 37 and restricts the movement of the lever blade 371, thereby preventing the driving force from being transmitted to the blade member 34 via the transmission member 37. This restricts the movement of the blade member 34.

[0052] <First restriction portion 51> The first restricting portion 51 has a first restricting plane 510, a first step portion 511, a first protruding portion 512, and a second protruding portion 513. The first restricting plane 510 is a plane that intersects with the optical axis direction, and is formed below the upper surface 313 of the main body portion 31. In other words, the first restricting plane 510 is a surface that faces the aperture plate 33 in the optical axis direction, and is formed at a position that is farther away from the aperture plate 33 in the optical axis direction than the upper surface 313, which is the opposing surface.

[0053] The first step portion 511 is a step between the upper surface 313 of the main body portion 31 and the first restricting plane 510. The first step portion 511 is provided on the left side of the main body opening 317. Specifically, the first step portion 511 is provided between the main body opening 317 and the right end portion 34a, which is one end portion of the blade member 34 in the open position, in the intersecting direction.

[0054] The first step portion 511 has a first connecting surface 511a connecting the upper surface 313 and the first restriction plane 510. The first connecting surface 511a extends in the front-rear direction. Note that the first connecting surface 511a may extend non-parallel to the front-rear direction, as long as it extends in a direction intersecting the intersecting direction.

[0055] The first protrusion 512 is provided adjacent to the left of the guide pin 319 provided on the front side of the first restricting plane 510. That is, the first protrusion 512 is provided at a position spaced apart from the first step 511 in the intersecting direction. The first protrusion 512 is a protrusion that protrudes upward, i.e., toward the blade member 34. The second protrusion 513 is formed on the rear side of the first restricting plane 510, to the left of the first protrusion 512. That is, the second protrusion 513 is provided at a position spaced apart from the first step 511 in the intersecting direction. The second protrusion 513 is a protrusion that protrudes upward, i.e., toward the blade member 34.

[0056] The first restricting portion 51 is not limited to having both the first protruding portion 512 and the second protruding portion 513, and may have either the first protruding portion 512 or the second protruding portion 513, or may have three or more protruding portions. Moreover, the first restricting portion 51 does not have to have the first protruding portion 512 and the second protruding portion 513.

[0057] <Second restriction portion 52> The second restricting portion 52 is provided on the upper surface 313 of the main body portion 31 to the left of the first restricting portion 51 and on the upper surface 355 of the mounting member 350. As described above, the outer shape of the mounting member 350 accommodated in the first accommodating portion 310 forms part of the outer shape of the main body portion 31, so it can be said that the second restricting portion 52 is provided on the main body portion 31.

[0058] The second restricting portion 52 has second step portions 521a, 521b (collectively referred to as the second step portion 521), arrangement surfaces 523a, 523b (collectively referred to as the arrangement surface 523), and second restricting planes 524a, 524b (collectively referred to as the second restricting plane 524). The arrangement surface 523 is a plane intersecting with the optical axis direction, and is formed below the first restricting plane 510 of the first restricting portion 51. In other words, the arrangement surface 523 is provided at a position farther away from the aperture plate 33 than the first restricting plane 510. The arrangement surface 523a is a surface formed on the main body portion 31, and the arrangement surface 523b is the upper surface 355 of the mounting member 350. The partition plate 370 of the transmission member 37 described above is arranged on the arrangement surface 523.

[0059] The second restricting plane 524 is a plane that intersects with the optical axis direction, and is formed below the arrangement surface 523. That is, the second restricting plane 524 is provided at a position farther away from the aperture plate 33 than the arrangement surface 523, and faces the aperture plate 33 in the optical axis direction. The second restricting plane 524a is a surface formed on the main body 31, and the second restricting plane 524b is a surface formed on the mounting member 350.

[0060] The second step portion 521 is a step between the arrangement surface 523 and the second restriction plane 524. The second step portion 521 has a second connecting surface 522 connecting the arrangement surface 523 and the second restriction plane 524. Specifically, the second step portion 521a is a step between the arrangement surface 523a and the second restriction plane 524a, and the second connecting surface 522a connects the arrangement surface 523a and the second restriction plane 524a. The second step portion 521b is a step between the arrangement surface 523b and the second restriction plane 524b, and the second connecting surface 522b connects the arrangement surface 523b and the second restriction plane 524b.

[0061] The second connecting surface 522 of the second step portion 521 extends non-parallel to the front-rear direction in accordance with the shape of the lever blade 371. Specifically, the second connecting surface 522a of the second step portion 521a is formed along the extension direction of the second portion 371b of the lever blade 371. The second connecting surface 522b of the second step portion 521b is formed along the extension direction of the first portion 371a of the lever blade 371.

[0062] <Operation> 5A and 5B, the driving of the blade members 34 by the above-mentioned drive unit 35 and transmission member 37 will be described. Note that Fig. 5A and Fig. 5B are partial plan views of the main body 31, drive unit 35, and transmission member 37 as viewed from the optical axis K, with Fig. 5A showing the blade members 34 in the closed position and Fig. 5B showing the blade members 34 in the open position.

[0063] With the blade member 34 in the closed position, it is assumed that the rotor magnet 351 and the connecting portion 357 shown in Fig. 5A rotate in the clockwise direction. In this case, the edge of the first insertion hole 378 engages with the connecting portion 357, and the lever blade 371 starts to move in the counterclockwise direction in Fig. 5A around the boss 318d provided on the second restricting plane 524 as the rotation axis. As a result, the edge of the second insertion hole 379 engages with the insertion portion 342 of the blade member 34, and the insertion portion 342 is guided by the first guide hole 331 of the aperture plate 33 and the third guide hole 372 of the partition plate 370 and moves to the left. With this movement of the insertion portion 342, the blade member 34 provided with the insertion portion 342 moves to the left in the intersecting direction, guided by the guide pin 319. Then, the right end 34a of the blade member 34 moves to an open position to the left of the left end 330b of the opening 330 of the aperture plate 33.

[0064] On the other hand, when the blade member 34 is in the open position, the rotor magnet 351 and the connecting portion 357 shown in FIG. 5B rotate in the counterclockwise direction. In this case, the lever blade 371 starts to move around the boss 318b in the clockwise direction in FIG. 5B by engaging the edge of the first insertion hole 378 with the connecting portion 357. As a result, the edge of the second insertion hole 379 engages with the insertion portion 342, and the insertion portion 342 is guided by the first guide hole 331 of the aperture plate 33 and the third guide hole 372 of the partition plate 370 and moves to the right. With this movement of the insertion portion 342, the blade member 34 provided with the insertion portion 342 moves to the right in the intersecting direction, guided by the guide pin 319. Then, the right end portion 34a of the blade member 34 moves to the right of the right end portion 330a of the opening 330 of the aperture plate 33 to the closed position.

[0065] Next, with reference to Figures 6A, 6B, and 6C, the driving of the blade member 34 by the drive unit 35 and the transmission member 37 when the partition plate 370 is not attached will be described. Figures 6A and 6B are partial plan views of the main body 31, the drive unit 35, and the lever blade 371 of the transmission member 37 as viewed from the optical axis K, with Figure 6A showing the blade member 34 in the closed position and Figure 6B showing the blade member 34 in the open position. Also, Figure 6C is a partial perspective view of the closed position shown in Figure 6A.

[0066] In this case, since the partition plate 370 is not attached, the lower surface of the lever blade 371 contacts the upper surface 355 of the mounting member 350, i.e., the arrangement surface 523b, when in the open position shown in Fig. 6B. When the lever blade 371 rotates counterclockwise in Fig. 6B from this state and moves to the closed position shown in Fig. 6A as described above, the lever blade 371 is located to the right of the second stepped portions 521a, 521b. At this time, the lever blade 371 falls, due to its own weight, to the upper part of the second regulating plane 524 formed below the arrangement surface 523 (see Fig. 6C).

[0067] As described above, the second connecting surface 522a of the second step portion 521a is formed along the extending direction of the second portion 371b of the lever blade 371. Therefore, the side surface 381 of the second portion 371b of the lever blade 371 faces the second connecting surface 522a of the second step portion 521a. Moreover, the second connecting surface 522b of the second step portion 521b is formed along the extending direction of the first portion 371a of the lever blade 371. Therefore, the side surface 380 of the first portion 371a of the lever blade 371 faces the second connecting surface 522b of the second step portion 521b.

[0068] 6A in order to move from the closed position back to the open position, the side surface 381 comes into contact with the second connecting surface 522a of the second step portion 521a, and the side surface 380 comes into contact with the second connecting surface 522b of the second step portion 521b. Therefore, the counterclockwise rotation of the lever blade 371 is restricted by the second restricting portion 52. In other words, the lever blade 371 is restricted by the second connecting surface 522 extending in a direction intersecting the rotation direction of the lever blade 371.

[0069] Restricting the rotation of the lever blade 371 also restricts the movement of the blade member 34 which moves in the intersecting direction in conjunction with the rotation of the lever blade 371. As a result, during a performance inspection carried out after the assembly and manufacture of the blade opening / closing device 30, the absence of attachment of the partition plate 370 is detected by poor movement of the blade member 34 in the intersecting direction.

[0070] Next, with reference to Figs. 7A and 7B, the driving of the blade member 34 when the aperture plate 33 is not attached will be described. Figs. 7A and 7B are perspective views of the main body 31 and the blade member 34 when the aperture plate 33 is not attached. Fig. 7A shows the blade member 34 in the open position. As shown in Fig. 7A, since the aperture plate 33 is not provided, the lower surface of the blade member 34 is in contact with the first restricting plane 510 of the first restricting portion 51 formed on the upper surface of the main body 31. That is, the blade member 34 falls onto the first restricting plane 510 formed below the upper surface 313 of the main body 31 due to its own weight.

[0071] 7A, in the open position, right end 34a of blade member 34 is located to the left of main body opening 317. More specifically, right end 34a of blade member 34 is located to the left of first step portion 511. Further, first protrusion 512 of first restricting portion 51 is inserted into guide hole 343 formed in blade member 34. Second protrusion 513 of first restricting portion 51 is inserted into elongated hole 344 formed in blade member 34.

[0072] In this state, when the blade member 34 attempts to move rightward toward the closed position in conjunction with the rotation of the lever blade 371, the right end portion 34a of the blade member 34 comes into contact with the first connecting surface 511a of the first step portion 511. Therefore, the blade member 34, which has fallen onto the first restricting plane 510, is restricted from moving rightward by the first step portion 511. As a result, during a performance inspection carried out after the assembly and manufacture of the blade opening / closing device 30, the fact that the aperture plate 33 is not attached is detected by poor movement of the blade member 34 in the cross direction.

[0073] As described above, the blade member 34 has a rectangular shape extending in the intersecting direction, and the insertion portion 342 into which the lever blade 371 is inserted is provided near the left end of the blade member 34. That is, the right end portion 34a of the blade member 34 is separated in the intersecting direction from the insertion portion 342 that drives in conjunction with the rotation of the lever blade 371. For this reason, when the blade member 34 moves to the right in conjunction with the rotation of the lever blade 371, if bending or the like occurs in the blade member 34, there is a risk that the right end portion 34a will overcome the first step portion 511, and the blade member 34 will move to the right of the first step portion 511.

[0074] In this case, as shown in FIG. 7B, the guide hole 343 into which the first protrusion 512 is inserted moves to the right relative to the first protrusion 512. Then, the left end 512a of the first protrusion 512 comes into contact with the left end 343a of the guide hole 343. Similarly, the long hole 344 into which the second protrusion 513 is inserted moves to the right relative to the second protrusion 513. Then, the left end 513a of the second protrusion 513 comes into contact with the left end 344a of the long hole 344. Therefore, the first protrusion 512 is inserted into the guide hole 343, and the second protrusion 513 is inserted into the long hole 344, so that the movement of the blade member 34 to the right is restricted. At this time, the right end 34a of the blade member 34 is located midway between the right end and the left end of the main body opening 317. That is, the main body opening 317 is not completely blocked by the blade member 34. In other words, the positions at which the first protrusion 512 and the second protrusion 513 are formed are determined so that the right end 34a of the blade member 34 is located to the left of the right end of the main body opening 317. As a result, during a performance inspection carried out after the assembly and manufacture of the blade opening / closing device 30, if the main body opening 317 is not completely blocked, it is determined that the aperture plate 33 is not attached.

[0075] According to the above-described embodiment, at least one of the following advantageous effects can be obtained.

[0076] (1) The upper surface 313 of the main body 31 of the blade opening / closing device 30 is provided with a restricting portion 50 that restricts the movement of the blade member 34 in the cross direction. In the optical axis K direction, the aperture plate 33 and the transmission member 37, which are extension members, are provided between the main body 31 and the blade member 34. As a result, when the aperture plate 33 or the transmission member 37 is not attached to the main body 31, the movement of the blade member 34 along the cross direction is restricted by the restricting portion 50 provided on the main body 31. In other words, when a malfunction of the blade member 34 occurs at the performance inspection stage before the product is shipped, it is possible to determine that there is a part that is not attached. As a result, the circulation of defective products to which the aperture plate 33 or the transmission member 37 is not attached is suppressed.

[0077] (2) The restricting portion 50 has a first restricting portion 51 that restricts the movement of the blade member 34 that comes into contact with the blade member 34. Specifically, the first restricting portion 51 has an upper surface 313 that is an opposing surface of the main body portion 31 that faces the aperture plate 33, a first restricting plane 510 that is provided at a position farther away from the aperture plate 33 than the upper surface 313 in the optical axis direction, and a first step portion 511 that is a step between the upper surface 313 and the first restricting plane 510. As a result, when the aperture plate 33 is not attached, the blade member 34 is positioned on the first restricting plane 510 by its own weight, and the movement of the blade member 34 in the intersecting direction is restricted by the first step portion 511. As a result, when there is a movement defect of the blade member 34 during inspection before shipment, it is possible to determine that the aperture plate 33 has not been attached.

[0078] (3) The first step 511 is provided between the right end 34a, which is the end on one side (right side) of the blade member 34 in the open position, and the main body opening 317 of the main body 31 in the intersecting direction, and extends in the front-rear direction intersecting the intersecting direction. As a result, if the aperture plate 33 is not attached, the first step 511 comes into contact with the right end 34a of the blade member 34 when the blade member 34 moves from the open position to the closed position, and the blade member 34 is restricted from moving to the closed position. As a result, it is possible to determine that the aperture plate 33 is not attached during inspection before shipping.

[0079] (4) The first step portion 511 has a first connection surface 511a that connects the upper surface 313, which is the opposing surface, and the first restricting plane 510. The first connection surface 511a extends in a direction intersecting the intersecting direction (front-rear direction). Therefore, when the aperture plate 33 is not attached, the first connection surface 511a comes into contact with the right end portion 34a of the blade member 34 that moves along the intersecting direction, making it possible to restrict the movement of the blade member 34. This makes it possible to determine that the aperture plate 33 is not attached during inspection before shipment.

[0080] (5) The first restricting portion 51 has a first protruding portion 512 and a second protruding portion 513 protruding toward the blade member 34. The first protruding portion 512 and the second protruding portion 513 are provided at a position separated from the first step portion 511 in the cross direction. When the first protruding portion 512 and the second protruding portion 513 are inserted into the guide hole 343 and the long hole 344, which are holes formed in the blade member 34, respectively, the movement of the blade member 34 in the cross direction is restricted. As a result, even if the blade member 34 extending in the cross direction is bent and the right end portion 34a of the blade member 34 rides up on the first step portion 511, the movement of the blade member 34 is restricted by the first protruding portion 512 and the second protruding portion 513. As a result, when the main body opening 317 is not completely closed by the blade member 34 during inspection at the time of shipment, it is possible to determine that the aperture plate 33 is not attached.

[0081] (6) The restricting portion 50 comes into contact with the transmitting member 37 to restrict the movement of the blade member 34. Specifically, the transmitting member 37 has a lever blade 371 and a partition plate 370 provided between the lever blade 371 and the main body 31 in the optical axis direction. The restricting portion 50 has a second restricting portion 52 that restricts the movement of the lever blade 371. As a result, if the partition plate 370 is not attached to the main body 31, the movement of the lever blade 371 is restricted, causing a movement defect in the blade member 34. As a result, if there is a movement defect in the blade member 34 during inspection before shipment, it can be determined that the partition plate 370 has not been attached.

[0082] (7) The second restricting portion 52 has a placement surface 523, a second restricting plane 524 facing the aperture plate 33, which is an extension member, at a position farther away from the aperture plate 33 in the optical axis direction than the placement surface 523, and a second step portion 521. The second step portion 521 is a step between the placement surface 523 and the second restricting plane 524. As a result, when the partition plate 370 is not attached, the lever blade 371 is positioned on the second restricting plane 524 by its own weight, and the movement of the lever blade 371 is restricted by the second step portion 521, causing a movement defect of the blade member 34. As a result, when there is a movement defect of the blade member 34 during inspection before shipment, it is possible to determine that the partition plate 370 has not been attached.

[0083] (8) Lever blade 371 rotates around boss 318d that functions as a rotation axis provided on second restricting plane 524. Second connecting surface 522 of second step portion 521 extends in a direction intersecting the rotation direction of lever blade 371. As a result, when partition plate 370 is not attached, second step portion 521 restricts the rotational movement of lever blade 371, causing poor movement of blade member 34. As a result, it becomes possible to determine that partition plate 370 is not attached during inspection before shipment.

[0084] In the above-described embodiment, the restricting portion 50 has been described as having the first restricting portion 51 and the second restricting portion 52. However, the restricting portion 50 may have at least one of the first restricting portion 51 and the second restricting portion 52.

[0085] The present technology can have the following configurations.

[0086] (1) A blade opening / closing device comprising: an extension member having an opening located on the optical axis of an optical unit and extending in a transverse direction that intersects with the optical axis direction of the optical unit; a blade member movable in the transverse direction to open and close the opening; a drive unit that moves the blade member to either a closed position when the opening is closed or an open position when the opening is open; a transmission member that transmits a driving force generated by the drive unit to the blade member; a main body unit in which the extension member, the blade member, the drive unit and the transmission member are provided; and a regulating unit that regulates movement of the blade member in the transverse direction, wherein the extension member and the transmission member are provided between the main body unit and the blade member in the optical axis direction, the main body unit has an opposing surface that faces the extension member and the transmission member, and the regulating unit is provided on the opposing surface.

[0087] (2) The blade opening / closing device described in (1), wherein the regulating portion has a first regulating portion that contacts the blade member to regulate the movement of the blade member, and a second regulating portion that contacts the transmission member to regulate the movement of the blade member.

[0088] (3) A blade opening and closing device as described in (2), wherein the first regulating portion has a first regulating plane that faces the extension member at a position farther away from the extension member in the optical axis direction than the opposing surface, and a first step portion that is a step between the opposing surface of the main body portion and the first regulating plane.

[0089] (4) The blade opening / closing device described in (3), wherein the main body portion has a main body opening at a position overlapping with the opening along the optical axis direction, and the first step portion is provided in the intersecting direction between one end of the blade member in the open position and the main body opening.

[0090] (5) A blade opening / closing device as described in (3) or (4), wherein the first step portion has a first connecting surface that connects the first regulating plane and the opposing surface and extends in a direction intersecting the intersecting direction, and when the end portion on one side of the blade member contacts the first connecting surface, movement of the blade member in the intersecting direction is restricted.

[0091] (6) A blade opening / closing device described in any of (3) to (5), wherein the first regulating portion has a protrusion that protrudes toward the blade member, and when the protrusion is inserted into a hole provided in the blade member, the movement of the blade member in the intersecting direction is regulated.

[0092] (7) The blade opening and closing device according to (6), wherein the protrusion is provided at a position spaced apart from the first step portion in the intersecting direction.

[0093] (8) A blade opening / closing device described in any of (2) to (7), wherein the transmission member has a lever blade that transmits a driving force to the blade member and a partition plate provided between the lever blade and the main body in the optical axis direction, and the second regulating portion regulates the movement of the lever blade.

[0094] (9) The blade opening and closing device described in (8), wherein the second regulating portion has an arrangement surface on which the partition plate is arranged, a second regulating plane facing the extension member at a position farther away from the extension member in the optical axis direction than the arrangement surface, and a second step portion which is a step between the arrangement surface and the second regulating plane.

[0095] (10) A blade opening and closing device as described in (9), wherein the lever blade rotates around a rotation axis provided on the second regulating plane, the second step portion has a second connecting surface connecting the arrangement surface and the second regulating plane, and the second connecting surface extends in a direction intersecting the rotation direction of the lever blade. [Explanation of symbols]

[0096] 10 notebook computer, 16 camera unit, 23 lens, 30 blade opening / closing device, 31 main body, 33 aperture plate, 34 blade member, 34a right end, 35 drive unit, 36 cover member, 37 transmission member, 50 restricting portion, 51 first restricting portion, 52 second restricting portion, 313 upper surface, 317 main body opening, 318a, 318b, 318c, 318d boss, 319 guide pin, 330 opening, 330a right end, 330b left end, 331 first guide hole, 332 second guide hole, 342 insertion portion, 343 guide hole, 343a left end, 344 long hole, 344a left end, 350 mounting member, 351 rotor magnet, 352 yoke, 353 coil, 354 lever member, 355 Upper surface, 356 mounting hole, 357 connecting portion, 370 partition plate, 371 lever blade, 372 third guide hole, 373 fourth guide hole, 374, 375 through hole, 377 shaft hole, 378 first insertion hole, 379 second insertion hole, 510 first regulating plane, 511 first step portion, 511a first connecting surface, 512 first protruding portion, 512a left end portion, 513 second protruding portion, 513a left end portion, 521, 521a, 521b second step portion, 522, 522a, 522b second connecting surface, 523, 523a, 523b arrangement surface, 524, 524a, 524b second regulating plane

Claims

1. An extension member having an opening located on the optical axis of the optical portion and extending in a direction intersecting the optical axis direction of the optical portion; A blade member that is movable in the intersecting direction and opens and closes the opening; a drive unit that moves the blade member to either a closed position when the opening is closed or an open position when the opening is opened; a transmission member that transmits a driving force generated by the drive unit to the blade member; a main body portion provided with the extension member, the blade member, the drive portion, and the transmission member; a restricting portion that restricts movement of the blade member in the cross direction, the extension member and the transmission member are provided between the main body and the blade member in the optical axis direction, The main body portion has an opposing surface facing the extension member and the transmission member, The regulating portion is provided on the opposing surface.

2. The blade opening and closing device according to claim 1, The regulating portion has a first regulating portion that comes into contact with the blade member to regulate the movement of the blade member, and a second regulating portion that comes into contact with the transmission member to regulate the movement of the blade member.

3. The blade opening and closing device according to claim 2, The first restricting portion is a first restricting plane facing the extending member at a position farther away from the extending member in the optical axis direction than the opposing surface; a first step portion which is a step between the opposing surface of the main body portion and the first regulating plane;

4. The blade opening and closing device according to claim 3, the main body has a main body opening at a position overlapping with the opening along the optical axis direction, A blade opening / closing device, wherein the first step portion is provided in the intersecting direction between one end of the blade member in an open position and the main body opening.

5. The blade opening and closing device according to claim 4, The first step portion has a first connecting surface that connects the first restricting plane and the opposing surface and extends in a direction intersecting the intersecting direction, A blade opening / closing device, wherein when the end portion on the one side of the blade member contacts the first connecting surface, movement of the blade member in the intersecting direction is restricted.

6. The blade opening and closing device according to any one of claims 3 to 5, The first restricting portion has a protruding portion protruding toward the blade member, When the protrusion is inserted into a hole provided in the blade member, movement of the blade member in the intersecting direction is restricted.

7. The blade opening and closing device according to claim 6, The protrusion is provided at a position spaced apart from the first step portion in the intersecting direction.

8. The blade opening and closing device according to claim 2, the transmission member has a lever blade that transmits a driving force to the blade member, and a partition plate that is provided between the lever blade and the main body in the optical axis direction, The second regulating portion regulates the movement of the lever blade.

9. The blade opening and closing device according to claim 8, The second restricting portion is A placement surface on which the partition plate is placed; a second restriction plane facing the extending member at a position farther away from the extending member than the arrangement surface in the optical axis direction; a second step portion which is a step between the arrangement surface and the second regulating plane.

10. The blade opening and closing device according to claim 9, The lever blade rotates around a rotation axis provided on the second regulating plane, The second step portion has a second connecting surface that connects the arrangement surface and the second restricting plane, A blade opening and closing device, wherein the second connecting surface extends in a direction intersecting with the rotation direction of the lever blade.

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