JP4738160B2 - Stage device lock mechanism - Google Patents

Description

  The present invention relates to a locking mechanism for a stage device that locks a stage plate in a non-operating state when the stage plate that can freely move on a specific plane is in the non-operating state.

  As a prior art of the lock mechanism, for example, there is one described in Patent Document 1.

In this lock mechanism, an image sensor is mounted on the front surface of a stage plate, which is a component of the stage device, and an engaging recess (lock hole) is provided in the rear surface of the stage plate. Then, a non-operating state in which hand shake correction is not performed by fitting a contact member (lock pin), which is provided behind the stage device (stage plate) and is movable back and forth in a direction parallel to the optical axis, into the engagement recess. The stage plate at is locked.
Japanese Patent No. 3431020

  The diameter of the abutting member is larger than that of the engaging recess, and the tip is conical. At the time of locking, the conical recess is engaged with the conical tip.

  However, since the tip of the contact member is conical in this way, if the stage plate slides with a strong force, the contact member may move in a direction to escape from the engagement recess, and the lock may be unexpectedly released. is there.

  Furthermore, when the lock mechanism of Patent Document 1 is applied to a hand shake correction device that can correct so-called rotational shake, another problem arises. In other words, the stage plate can be rotated in this type of camera shake correction apparatus. However, in Patent Document 1, since there is one engagement recess and a contact member, even if the contact member is engaged with the engagement recess, the rotation of the stage plate cannot be locked.

  An object of the present invention is to provide a locking mechanism for a stage apparatus that can reliably lock a stage plate and can regulate the rotation of the stage plate while having a simple structure.

A locking mechanism for a stage apparatus according to the present invention includes a fixed support substrate and a stage plate supported so as to be relatively movable in a direction parallel to the fixed support substrate. A locking member comprising a rotating plate that is positioned immediately before or after the stage plate and moves in a direction substantially perpendicular to the moving direction of the stage plate, and makes contact with and separates from the stage plate; A plurality of lock holes drilled in one of the facing portions of the member and the stage plate, and a tip portion projecting from the other of the facing portions and having a smaller diameter than the lock holes can be engaged with and disengaged from the respective lock holes. When the plurality of lock pins and the stage plate are in an inoperative state, the lock pins are engaged with the lock holes by causing the lock member to approach the stage plate, When serial stage plate becomes in operation, to escape the respective locking pin from the lock hole by distancing the locking member from the stage plate, the rotatable and said locking member about an axis parallel with the stage plate And a motor having a fixed rotating shaft .

  It is preferable that the driving means is positioned on the outer peripheral side of the stage plate as being immovable.

  It is practical to drill the lock hole in the stage plate and project the lock pin to the lock member.

  The stage plate has a shape having an X direction side parallel to a specific X direction and a Y direction side parallel to the Y direction perpendicular to the X direction, and the rotation axis of the motor is parallel to the Y direction. Is preferred.

  The base portion of the lock pin has a truncated conical shape whose diameter gradually increases from the distal end side toward the proximal end side, and the maximum diameter of the root portion is larger than the corresponding lock hole. preferable.

  Since locking is performed by engaging a plurality of lock pins with a plurality of lock holes, the stage plate can be securely locked, and the rotatable stage plate can be locked in a state where rotation is restricted.

  Moreover, since the tip of the lock pin having a smaller diameter than the lock hole fits into the lock hole when locked, even if the stage plate tries to slide with a strong force, the lock hole and the lock pin are not unlocked. .

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 8 with reference to the accompanying drawings. In the following description, as indicated by arrows in FIGS. 1 and 2, the horizontal direction of the camera shake correction device 30 of the digital camera 20 is the X direction, the vertical direction is the Y direction, and the front and rear direction (the optical axis direction of the photographing optical system). Is defined as the Z direction.

  First, the hand shake correction device (stage device) 30 to which the lock mechanism 100 according to the present invention is attached will be described.

  As shown in FIG. 1, a photographing optical system including a plurality of lenses L1, L2, and L3 is disposed in the digital camera 20, and a camera shake correction device 30 is disposed behind the lens L3. Yes.

  The hand shake correction device 30 has a structure shown in FIGS.

  As shown in FIGS. 2 to 6, the hand shake correction device 30 includes a front fixed support substrate 31 that is made of a magnetic material such as soft iron and has a front rectangular shape and a front shape that is substantially the same as the front fixed support substrate 31. A rear fixed support substrate (fixed support substrate) 32 made of a magnetic material is provided. The four portions of the front fixed support substrate 31 and the rear fixed support substrate 32 are connected by four columnar columns 36 extending in the Z direction, and the front fixed support substrate 31 and the rear fixed support substrate 32 are mutually connected. They are parallel. A rectangular window hole 33 is formed in the center of the front fixed support substrate 31. The front fixed support substrate 31 is fixed to the inner surface of the camera body of the digital camera 20 by three fixing screws (not shown).

  Supporting protrusions 38 having a prismatic shape are projected from four positions on the rear surface of the front fixed support substrate 31. The front half of a metal ball 39 is rotatably supported in a hemispherical recess (not shown) provided in the rear end surface of each support projection 38. Four support protrusions 40 protrude from the rear fixed support substrate 32 at positions facing the respective support protrusions 38, and are hemispherical recessed on the front end face of each support protrusion 40. The rear part of the metal ball 41 is rotatably supported by a recess (not shown).

  X magnets MX in which S and N poles are arranged in the X direction are fixed to the left and right ends of the rear surface of the front fixed support substrate 31, respectively. These left and right X magnets MX are arranged in the X direction, and the positions in the Y direction coincide with each other. Then, when the front fixed support substrate 31 and the rear fixed support substrate 32 pass the magnetic flux of the X magnet MX, an X magnetic circuit is formed between the left and right X magnets MX and the facing portion of the rear fixed support substrate 32. Is formed. That is, the front fixed support substrate 31 and the rear fixed support substrate 32 function as a yoke.

  On the other hand, a Y magnet MY in which the S pole and the N pole are arranged in the Y direction is fixed to the lower end portion of the rear surface of the front fixed support substrate 31. Then, the front fixed support substrate 31 and the rear fixed support substrate 32 pass the magnetic flux of the Y magnet MY, so that a Y magnetic circuit is formed between the opposing portions of the Y magnet MY and the rear fixed support substrate 32. ing. That is, the front fixed support substrate 31 and the rear fixed support substrate 32 function as a yoke.

  A reinforcing plate (stage plate) 61 having the same front shape as the electric substrate 60 is fixed to the rear surface of the flat electric substrate (stage plate) 60, and the electric substrate 60 and the reinforcing plate 61 are integrated. As shown in FIG. 2, four balls 39 are rotatably contacted at four positions on the front surface of the electric board 60, and four balls 41 are freely rotated at four positions on the rear surface of the reinforcing plate 61. In contact. That is, the electric substrate 60 and the reinforcing plate 61 are sandwiched from the front and the rear by the four balls 39 and the four balls 41, and are both orthogonal to the optical axis O of the lenses L1 to L3 (the front fixed support substrate 31 and the rear side). It is parallel to the fixed support substrate 32).

  Accordingly, the electric board 60 and the reinforcing plate 61 can not only linearly move in the X and Y directions relative to the front fixed support board 31 and the rear fixed support board 32 from the initial position shown in FIG. And can move on an XY plane (perpendicular to the optical axis O) parallel to the Y direction.

  Further, rectangular movement range restricting holes 63 are formed at four locations of the electric board 60 and the reinforcing plate 61, and the corresponding struts 36 pass through the respective movement range restricting holes 63. The support column 36 and the movement range restriction hole 63 constitute a movement range restriction means, and the electric substrate 60 and the reinforcing plate 61 are connected to the front fixed support substrate 31 and the rear fixed support substrate 32. Relative movement is possible within a range that does not contact 63.

  A CCD (imaging device) 65 is fixed to the front central portion of the electric substrate 60. As shown in FIG. 2, the CCD 65 is rectangular in front view, and in FIG. 2 (when the electric substrate 60 is in the initial position), a pair of upper and lower X direction side edges 65X parallel to the X direction, A pair of left and right sides 65Y parallel to the Y direction (when the electric board 60 is in the initial position).

  A CCD holder 67 surrounding the CCD 65 is fixed to the front surface of the electric substrate 60. As shown in FIG. 6, a window hole 68 is formed in the front wall of the CCD holder 67. An optical low-pass filter 69 is fitted and fixed between the front wall of the CCD holder 67 and the CCD 65, and the imaging surface 66 of the CCD 65 always faces the optical low-pass filter 69 and the window hole 68 in the Z direction. The imaging surface 66 of the CCD 65 is an imaging surface on which an image transmitted through the lenses L1 to L3 and the optical low-pass filter 69 is formed. Further, when the electric substrate 60 is in the initial position (when in the state shown in FIG. 2), the center of the imaging surface 66 of the CCD 65 is positioned on the optical axis O.

  Three tongue pieces 71, a tongue piece 72, and a tongue piece 73 project from the left and right two places and the lower end portion of the electric substrate 60.

  As shown in FIG. 2, the tongue piece 71 and the tongue piece 72 are respectively positioned corresponding to the left and right X magnetic circuits (opposite the left and right X magnets MX in the Z direction).

  The X-direction drive coil CX having the same specifications is fixed to the front surfaces of the tongue piece 71 and the tongue piece 72. The X-direction driving coil CX is a coil parallel to the XY plane in which the coil wire is wound in a spiral shape more than 100 times (which is wound in the direction parallel to the electric board 60 and in the thickness direction of the electric board 60). Yes, the left and right X-direction drive coils CX are aligned in a direction parallel to the X-direction side 65X (aligned in the X direction in FIG. 2). In other words, the positions of the left and right X-direction drive coils CX in the direction parallel to the Y-direction side 65Y (the positions in the Y-direction in FIG. 2) match.

  The X direction drive coil CX, the front fixed support substrate 31, the rear fixed support substrate 32, and the X magnet MX constitute an X direction drive means.

  The tongue piece 73 is located at a position facing the Y magnetic circuit in the Z direction.

  A Y-direction drive coil CYA and a Y-direction drive coil CYB having the same specifications are fixed to the front surface of the tongue piece 73. Both the Y-direction driving coil CYA and the Y-direction driving coil CYB have coil wires wound in a spiral shape more than 100 times (in the direction parallel to the electric substrate 60 and in the thickness direction of the electric substrate 60). ) The coils are parallel to the XY plane, and the Y-direction driving coil CYA and the Y-direction driving coil CYB are arranged along the lower X-direction side 65X (in FIG. 2, they are arranged in the X direction). . In other words, the Y-direction driving coil CYA and the Y-direction driving coil CYB have the same position in the direction parallel to the Y-direction side 65Y (Y-direction position in FIG. 2).

  The Y direction driving coil CYA and the Y direction driving coil CYB, the front fixed support substrate 31, the rear fixed support substrate 32, and the Y magnet MY constitute a Y direction drive means.

  The X-direction driving coil CX, the Y-direction driving coil CYA, and the Y-direction driving coil CYB are electrically connected to a control unit configured by a CPU or the like built in the camera.

  The camera shake correction apparatus 30 having the above configuration performs a camera shake correction operation by causing a current to flow from the control unit to the X direction driving coil CX, the Y direction driving coil CYA, and the Y direction driving coil CYB.

  That is, when a current is passed through the X direction driving coil CX, a driving force in the direction of the arrow FX1 or FX2 in FIG. 2 is generated in the X direction driving coil CX. Further, when a current is passed through the Y-direction driving coils CYA and CYB, a driving force in the direction of the arrow FY1 or FY2 in FIG. 2 is generated in the Y-direction driving coils CYA and CYB.

  As is well known, when the camera body vibrates in the X direction or Y direction due to camera shake, the movement distance (camera shake amount) of the camera body in the X direction and Y direction is detected, and the CCD 65 is detected as the camera shake direction relative to the camera body. If the linear movement is made in the opposite direction by the same distance as the amount of camera shake, the camera shake (image shake) of the CCD 65 is corrected. Therefore, if the current flows from the control means to the X direction driving coils CX and the Y direction driving coils CYA and CYB so that the CCD 65 performs such a linear movement, camera shake in the X direction and the Y direction of the CCD 65 will occur. It is corrected.

  Further, since the electric board 60 and the reinforcing plate 61 (CCD 65) can be rotated relative to the front side fixed support board 31 and the rear side fixed support board 32, the Y direction driving coil CYA and the Y direction driving coil CYB from the control means. When the directions of the currents flowing in the Y direction drive coils are reversed and Y direction driving coils CYA and Y direction driving coils CYB generate driving forces in opposite directions, the electric board 60 and the reinforcing plate 61 (CCD 65) rotate. Accordingly, when the camera body causes a so-called rotational shake, the Y direction driving coil CYA and the Y direction are supplied from the control means so that the electric board 60 and the reinforcing plate 61 (CCD 65) rotate in the direction opposite to the rotational shake direction. If a current is passed through the drive coil CYB, the rotational shake is corrected.

  Next, the lock mechanism 100 to which the present invention is applied, which is mounted on the above-described hand movement correction device 30, will be described mainly with reference to FIGS.

  The lock mechanism 100 includes the components described below.

  A support projecting piece 101 and a mounting piece 102 project from the upper edge portion and the right edge portion of the front fixed support substrate 31, respectively, and a column that extends rearward on the rear surface of the support projecting piece 101 and the mounting piece 102. A rotation regulating pin 103 and a guide pin 104 having a shape are projected.

  A protruding piece 106 and a protruding piece 107 protrude from the upper edge portion and the right edge portion of the electric board 60 and the reinforcing plate 61, respectively. The projecting piece 106 and the projecting piece 107 are respectively provided with a circular lock hole 108 and a lock hole 109 which are circular in a front view.

  The lock member 110 having a substantially L shape in front view includes an X-direction piece 111 and a Y-direction piece 112. In the state of FIG. 2, the X-direction piece 111 is parallel to the upper side (X-direction side parallel to the X-direction side 65 </ b> X) of the electric board 60 (and the reinforcing plate 61). It is parallel to the right side (Y direction side parallel to the Y direction side side 65Y). The lock member 110 is located on the outer peripheral side of the main body of the electric substrate 60 and the reinforcing plate 61 (a portion excluding the protruding piece 106 and the protruding piece 107) in a front view, and the rear fixed support substrate 32 and the reinforcing plate in a side view. 61. The X-direction piece 111 is provided with a long-hole-shaped rotation restriction hole 114 into which the rotation restriction pin 103 is slidably fitted. The Y-direction piece 112 is slidably fitted with the guide pin 104. A circular hole 115 is formed. Then, when the guide pin 104 is slidably fitted into the circular hole 115, the lock member 110 can be slid along the guide pin 104 in a direction parallel to the optical axis O, and the unlock position shown in FIG. 5 can be linearly moved between the lock positions shown in FIG. Further, when the rotation restricting pin 103 is slidably fitted into the rotation restricting hole 114, the rotation of the lock member 110 around the guide pin 104 is restricted.

  A lock pin 116 and a lock pin 117 that are detachable from the lock hole 108 and the lock hole 109 and extend forward are respectively provided at positions corresponding to the lock hole 108 and the lock hole 109 on the front surface of the lock member 110. ing. As shown in FIGS. 7 and 8, the lock pins 116 and 117 protrude in a direction parallel to the optical axis O slightly longer than the thickness of the electric substrate 60 and the reinforcing plate 61. The lock pins 116 and the tip portions of the lock pins 117 (portions excluding the root portions 116 b and 117 b) 116 a and 117 a have a columnar shape smaller in diameter than the lock holes 108 and 109. Further, the base portions 116b and 117b of the lock pins 116 and 117 gradually increase in diameter toward the lock member 110 and have a truncated conical shape (the maximum diameter is larger than the lock holes 108 and 109). Conical shape with the head cut). When the lock member 110 is located at the unlock position, the lock pin 116 and the lock pin 117 both escape backward from the lock hole 108 and the lock hole 109 (see FIG. 4). On the other hand, when the lock member 110 is positioned at the lock position with the electric board 60 and the reinforcing plate 61 positioned at the initial position in FIG. 2, both the lock pin 116 and the lock pin 117 are fitted into the lock hole 108 and the lock hole 109 from the rear. 5 (see FIG. 5), as shown in FIGS. 7 and 8, the base portions (truncated conical portions) 116b and 117b abut against the opening edges of the lock hole 108 and the lock hole 109 without a gap. Accordingly, the backlash of the lock pins 116 and 117 and the lock holes 108 and 109 is removed, and the rotation and linear movement of the electric substrate 60 and the reinforcing plate 61 are restricted, and the electric substrate 60 and the reinforcing plate 61 (CCD 65) are corrected for camera shake. It becomes impossible to operate.

  Further, an attachment plate 120 having an L shape in plan view is fixed to the attachment piece 102 of the front fixed support substrate 31. A body portion of a motor (driving means) 123 is fixed to the outer surface of the mounting piece 121 of the mounting plate 120 orthogonal to the electric board 60 and the reinforcing plate 61. On the upper end surface of the motor 123, a rotating shaft 124 whose axis is parallel to the Y-direction side 65Y of the CCD 65 projects. An attachment (engaging member) 125 is fixed to the rotating shaft 124 and is integrated with the rotating shaft 124. The attachment 125 includes a pair of front and rear gripping pieces 126, and the Y-direction piece 112 of the lock member 110 is loosely fitted between the front and rear gripping pieces 126 as shown in FIGS. Further, the motor 123 is electrically connected to the control means.

  Next, the operation of the lock mechanism 100 configured as described above will be described.

  When the hand shake correction switch SW is OFF, the electric board 60 and the reinforcing plate 61 are at the initial positions in FIG. 2, and no drive signal is sent from the control means to the motor 123. At this time, the attachment 125 is in the state shown in FIG. 5 and the rear gripping piece 126 presses the Y-direction piece 112 (locking member 110) forward, so that the locking member 110 is located at the locking position shown in FIG. The lock pin 116 and the lock pin 117 are fitted in the lock hole 108 and the lock hole 109, respectively. For this reason, the electric board | substrate 60 and the reinforcement board 61 are hold | maintained (locked) in the said initial position. Therefore, even if the digital camera 20 is vibrated, the electric board 60 and the reinforcing plate 61 do not move relative to the camera body.

  When the hand shake correction switch SW is turned on in this state, a drive signal is sent from the control means to the motor 123, and the rotating shaft 124 of the motor 123 rotates counterclockwise in plan view. Then, the attachment 125 rotates and the front grip piece 126 moves the Y-direction piece 112 (lock member 110) to the unlock position. Therefore, since the lock pin 116 and the lock pin 117 are pulled out rearward from the lock hole 108 and the lock hole 109, respectively, the electric board 60 and the reinforcing plate 61 are within the range where each support column 36 does not contact the corresponding movement range restriction hole 63 again. The relative movement is enabled with the camera shake correction operation.

  When the hand shake correction switch SW is turned OFF after the hand shake correction operation is finished, the electric board 60 and the reinforcing plate 61 are returned to the initial positions by the control of the control means, and a return signal is sent from the control means to the motor 123. The rotating shaft 124 rotates clockwise in plan view. Then, the grip piece 126 on the rear side of the attachment 125 moves the Y-direction piece 112 (lock member 110) to the lock position again, so that the lock pin 116 and the lock pin 117 are fitted in the lock hole 108 and the lock hole 109, respectively. The electric board 60 and the reinforcing plate 61 are held at the initial positions.

  As described above, according to the present embodiment, the lock mechanism 108 including the lock hole 108, the lock hole 109, the lock member 110, the lock pin 116, the lock pin 117, the motor 123, and the attachment 125 constitutes the initial position. The electric board 60 and the reinforcing plate 61 located at the position can be reliably locked.

  Further, as shown in FIGS. 7 and 8, when locking, the tip portions 116a and 117a of the lock pins 116 and 117 are fitted into the lock holes 108 and 109, so that the electric board 60 and the reinforcing plate 61 slide with a strong force. Even if an attempt is made, the lock holes 108 and 109 and the lock pins 116 and 117 are not unlocked.

  In addition, since the lock is performed by the pair of lock holes 108 and 109 and the lock pins 116 and 117, a stronger lock state can be obtained as compared with the conventional technique in which the lock is performed by one engagement recess and the contact member.

  Furthermore, since the electric board 60 and the reinforcing plate 61 (CCD 65) can be rotated relative to the front fixed support board 31 and the rear fixed support board 32, if only one lock pin is used as in the prior art, the electric board 60 and the rotation of the reinforcing plate 61 (CCD 65) cannot be restricted. However, if the structure is such that the pair of lock pins 116 and 117 and the pair of lock holes 108 and 109 are locked as in the present embodiment, the rotation of the electric board 60 and the reinforcing plate 61 (CCD 65) can be restricted. The lock mechanism 100 of the embodiment exhibits special usefulness when applied to a hand vibration correction device capable of rotational vibration correction.

  Further, since the lock member 110 is provided between the reinforcing plate 61 and the rear fixed support substrate 32 and the motor 123 is disposed on the side (outer peripheral side) of the electric substrate 60 and the reinforcing plate 61, the hand shake correction device 30 and the digital camera 20 do not increase in size in the direction of the optical axis O, and the camera shake correction device and the digital camera can be reduced in thickness as compared with the prior art.

  Furthermore, since the lock mechanism 100 has a very simple structure, the manufacturing cost can be kept low.

  Further, since the lock pins 116 and 117 are not provided on the stage plate (the electric board 60 and the reinforcing plate 61), and the lock pins 116 and 117 are provided on the lock member 110 side. Weight does not increase. Therefore, it is easy to control the movement of the stage plate, and the camera shake correction operation can be performed with higher accuracy than when the lock pins 116 and 117 are projected from the stage plate.

  Further, the force in the direction of the optical axis O does not reach the electric substrate 60 and the reinforcing plate 61 from the lock member 110 (lock pin 116, lock pin 117). Accordingly, the CCD 65 does not move in the direction of the optical axis O when locked, so that the focus of the CCD 65 is not affected.

  Next, a second embodiment of the locking mechanism of the present invention will be described mainly with reference to FIGS. The same members as those in the first embodiment are given the same reference numerals, and detailed descriptions thereof are omitted.

  The lock mechanism 200 of the present embodiment has the following structure.

  An attachment plate 201 having an L shape in plan view is fixed to the vicinity of the lower right corner of the rear surface of the front fixed support substrate 31. The body of a motor (driving means) 203 is fixed to the mounting piece 202 of the mounting plate 201 orthogonal to the electric substrate 60 and the reinforcing plate 61, and the motor 203 is positioned on the outer peripheral side of the electric substrate 60 and the reinforcing plate 61. is doing. A rotation shaft 204 of the motor 203 is parallel to the Y direction, and an attachment 205 is fixed to the rotation shaft 204.

  The attachment 205 includes a substantially cylindrical fixing portion 206 fixed to the rotating shaft 204 and a rotating plate (locking member) 207 extending integrally from the fixing portion 206. A pair of upper and lower protrusions 208 protrude from the left edge of the rotating plate 207, and a substantially cylindrical lock pin 209 extending rearward is protruded from the rear surface of the protrusion 208. As shown in FIG. 13, the lock pin 209 protrudes slightly longer than the thickness of the electric substrate 60 and the reinforcing plate 61 in the direction parallel to the optical axis O.

  From the tongue piece 71 of the electric board 60 and the reinforcing plate 61, a projection piece 211 that is smaller and square than the tongue piece 71 is projected, and a pair of upper and lower lock holes 212 are formed in the projection piece 211. As shown in FIG. 13, the diameter of the tip portion 209a of the lock pin 209 is smaller than the diameter of the lock hole 212, and the root portion 209b of the lock pin 209 gradually increases in diameter toward the rotating plate 207 side, and the maximum diameter is increased. It has a truncated conical shape (conical shape with the head cut) having a larger diameter than the lock hole 212.

  Next, the operation of the lock mechanism 200 having the above configuration will be described.

  When the hand shake correction switch SW is OFF, the electric board 60 and the reinforcing plate 61 are in the initial positions in FIG. 2, and no drive signal is sent from the control means to the motor 203. At this time, the rotary shaft 204 and the attachment 205 are in the state shown in FIG. 11, and the upper and lower lock pins 209 are positioned at the lock position where the lock pins 212 are fitted into the lock holes 212 of the projecting pieces 211 from the front (as shown in FIG. 209b abuts against the opening edge of the lock hole 212 without a gap). For this reason, the electric substrate 60 and the reinforcing plate 61 are held (locked) at the initial position, and even if the digital camera 20 is vibrated, the electric substrate 60 and the reinforcing plate 61 do not move relative to the camera body.

  When the hand shake correction switch SW is turned on in this state, a drive signal is sent from the control means to the motor 203, and the rotating shaft 204 of the motor 203 rotates clockwise in plan view. Then, the rotating plate 207 rotates together in the same direction, and the upper and lower lock pins 209 move to the unlock position in FIG. 12, so that the upper and lower lock pins 209 escape forward from the upper and lower lock holes 212. Therefore, the electric board 60 and the reinforcing plate 61 can move relative to each other within a range in which each column 36 does not contact the corresponding movement range regulation hole 63 again.

  When the hand shake correction switch SW is turned OFF after the hand shake correction operation is finished, the electric board 60 and the reinforcing plate 61 are returned to the initial positions by the control of the control means, and a return signal is sent from the control means to the motor 203. The rotating shaft 204 rotates counterclockwise in plan view. Therefore, the upper and lower lock pins 209 are moved again to the lock position and fitted into the upper and lower lock holes 212, and the electric board 60 and the reinforcing plate 61 are held at the initial position.

  By adopting the lock mechanism 200 described above, the same effect as that of the first embodiment can be obtained.

  Further, since the motor 203 and the attachment 205 are disposed on the sides of the electric board 60 and the reinforcing plate 61 and the rotating plate 207 is located between the electric board 60 and the front fixed support board 31, the lock mechanism 200 is provided. However, the camera shake correction device 30 and the digital camera 20 are not increased in size in the direction of the optical axis O.

  As mentioned above, although this invention was demonstrated based on said each embodiment, this invention is not limited to these embodiment, It can implement by giving various deformation | transformation.

  Further, the lock pin 116, the lock pin 117, and the lock pin 209 are protruded from the stage plate, and the lock hole 108, the lock hole 109, and the lock hole 212 are formed in the lock member 110 and the rotary plate (lock member) 207. Good. Further, the lock member 110 may be positioned between the projecting piece 106 and the projecting piece 107 and the front-side fixed support substrate 31, and the lock pin 116 and the lock pin 117 may be fitted into the lock hole 108 and the lock hole 109 from the front. . Further, the rotary plate 207 may be positioned immediately after the stage plate, and the lock pin 209 may be fitted into the lock hole 212 from the rear.

  Alternatively, a hole corresponding to the movement range restricting hole 63 may be formed in the front fixed support substrate 31 or the front fixed support substrate 32, and a pin corresponding to the support column 36 may be protruded from the electric substrate 60 or the reinforcing plate 61.

  Of course, an image sensor other than the CCD 65, for example, a CMOS image sensor can be used.

  Furthermore, the number of each lock pin and each lock hole may not be two, but may be three or more.

  In the first embodiment, the rotation restricting pin 103 and the guide pin 104 are protruded from the lock member 110, and the rotation restricting hole 114 and the circular hole 115 are formed in the front fixed support substrate 31 side or the rear fixed support substrate 32. May be implemented. Further, the rotation restricting pins 103 and the guide pins 104 may be provided on the rear fixed support substrate 32 side.

  Furthermore, when the main power supply of the digital camera 20 is turned on or the release button is pressed, the control unit may cause the lock mechanisms 100 and 200 to shift to the unlocked state.

  Further, the present invention is applied to a conventionally known camera shake correction device in which the electric board 60 and the reinforcing plate 61 are linearly moved only in the X direction and the Y direction along the guide shaft or the like. Needless to say, the present invention can be applied to different stage devices (devices in which a specific member can linearly move or rotate in the X direction or the Y direction).

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal side view of a digital camera including a camera shake correction device according to a first embodiment of the present invention. It is a rear view which abbreviate | omits and shows a camera-shake correction apparatus, a rear side fixed support substrate. It is a rear view of a front side fixed support substrate and its fixed component. It is a top view of a camera shake correction device when a lock mechanism is in an unlocked state. It is a top view of a camera shake correction device when a lock mechanism is in a locked state. It is sectional drawing which follows the VI-VI arrow line of FIG. It is sectional drawing which follows the VII-VII arrow line of FIG. It is sectional drawing which follows the VIII-VIII arrow line of FIG. It is a rear view which abbreviate | omits a rear side fixed support substrate and shows the camera-shake correction apparatus of 2nd Embodiment. It is a rear view of a front side fixed support substrate and its fixed component. It is a top view of a camera shake correction device when a lock mechanism is in a locked state. It is a top view of a camera shake correction device when a lock mechanism is in an unlocked state. It is sectional drawing which follows the XIII-XIII arrow line of FIG.

Explanation of symbols

20 Digital camera (camera)
30 Hand shake correction device (stage device)
31 Front fixed support substrate (fixed support substrate)
32 Rear fixed support substrate (fixed support substrate)
33 Window hole 36 Post 38 Support protrusion 39 Ball 40 Support protrusion 41 Ball 60 Electric substrate (stage plate)
60a Mounting hole 61 Reinforcement plate (stage plate)
63 Movement range regulation hole 65 CCD (imaging device)
65X X-direction side 65Y Y-direction side 66 Imaging surface 67 CCD holder 68 Window hole 69 Optical low-pass filter 71 72 73 Tongue piece 100 Locking mechanism 101 Supporting protrusion 102 Mounting piece 103 Rotation restriction pin 104 Guide pin 106 107 Projection piece 108 109 Lock hole 110 Lock member 111 X direction piece 112 Y direction piece 114 Rotation restricting hole 115 Circular hole 116 117 Lock pin 116a 117a Tip portion 116b 117b Root portion 120 Mounting plate 121 Mounting piece 123 Motor (driving means)
124 Rotating shaft 125 Attachment (engagement member)
126 Grasping piece 200 Locking mechanism 201 Mounting plate 202 Mounting piece 203 Motor (driving means)
204 Rotating shaft 205 Attachment 206 Fixed portion 207 Rotating plate (locking member)
208 Protruding portion 209 Lock pin 209a Tip portion 209b Root portion 211 Protruding piece 212 Lock hole CX X direction driving coil CYA CYB Y direction driving coil MX X magnet (X direction driving means)
MY Y magnet (Y direction drive means)
O Optical axis

Claims (5)

A fixed support substrate;
In a locking mechanism for locking the stage plate of a stage device comprising: a stage plate supported so as to be relatively movable in a direction parallel to the fixed support substrate;
A locking member that is located immediately before or after the stage plate and is made of a rotating plate that moves in a direction substantially perpendicular to the direction of movement of the stage plate and makes contact with and away from the stage plate;
A plurality of lock holes formed in one of the opposing portions of the lock member and the stage plate;
A plurality of lock pins projecting on the other side of the facing portion, the tip portions having a smaller diameter than the lock holes being detachable from the lock holes, respectively;
When the stage plate is in an inoperative state, the lock member is brought close to the stage plate to engage the lock pins with the lock holes, and when the stage plate is in an activated state, the lock is A motor having a rotation shaft which is rotatable about an axis parallel to the stage plate and to which the lock member is fixed, which causes each lock pin to escape from each lock hole by moving the member away from the stage plate;
A locking mechanism for a stage device, comprising: In the locking mechanism of the stage apparatus according to claim 1,
A locking mechanism for a stage apparatus, wherein the motor is positioned on the outer peripheral side of the stage plate as being immovable. In the locking mechanism of the stage apparatus according to claim 1 or 2,
Drilling the lock hole in the stage plate,
A locking mechanism for a stage apparatus in which the locking pin is provided on the locking member. In the locking mechanism of the stage device according to any one of claims 1 to 3,
  The stage plate has a shape including an X direction side parallel to a specific X direction and a Y direction side parallel to the Y direction orthogonal to the X direction,
  A locking mechanism for a stage apparatus, wherein the rotation axis of the motor is parallel to the Y direction. In the locking mechanism of the stage device according to any one of claims 1 to 4,
  A stage device in which the base portion of the lock pin has a truncated conical shape whose diameter gradually increases from the tip portion side toward the base end side, and the maximum diameter of the base portion is larger than the corresponding lock hole. Locking mechanism.

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