JP4408062B2 - Shutter device and photographing device - Google Patents

Description

  The present invention relates to a shutter device that drives shutter blades by rotation of a driving member, and an imaging device including the shutter device.

  2. Description of the Related Art Conventionally, as a shutter device at a relatively low speed, there is one that holds a shutter blade driving mechanism at a driving start position by a magnet (see, for example, Patent Document 1).

  A driving mechanism of the shutter device will be described with reference to FIG. FIG. 6 is a diagram illustrating a state in which the driving mechanism of the front curtain blade group is held by the magnet, and is a diagram when the traveling start preparation state (overcharge state) is shifted to the traveling start state.

  The front curtain drive lever 20 is urged clockwise in FIG. 6 about a rotation shaft 20b by an urging member (not shown), and the front curtain blade group is operated by this urging force. An armature support member 20 a is fixed to the front curtain drive lever 20, and an armature shaft 21 a integrally attached to the front curtain armature 21 is engaged with a through-hole portion (not shown) formed in the armature support member 20 a. Match. At one end of the armature shaft 21a, a flange portion 21b having an outer diameter larger than the inner diameter of the through-hole portion is provided.

  A compression spring 21c is disposed between the front curtain armature 21 and the armature support member 20a and around the armature shaft 21a. The compression spring 21c separates the front curtain armature 21 and the armature support member 20a from each other. Energized in the direction.

  A shock absorbing rubber 21d is disposed between the armature support member 20a and the flange portion 21b. The impact absorbing rubber 21d prevents the armature support member 20a from directly striking the flange portion 21b when shifting from the overcharge state to the travel start state, and absorbs the impact applied to the flange portion 21b from the armature support member 20a.

  When a voltage is applied to the coil 23, a magnetic force is generated in the yoke 22, and the armature 21 can be attracted by this magnetic force.

  Normally, when the camera is in a standby state, the coil 23 is not energized, and the front curtain drive lever 20 is overcharged by a holding mechanism (not shown) (the urging member is charged more than the travel start state). ) Is held (mechanically held). In this overcharged state, a gap is generated between the armature support member 20a and the shock absorbing rubber 21d.

  On the other hand, when the holding of the front curtain drive lever 20 by the holding mechanism is released at the same time as the voltage is applied to the coil 23, the front curtain drive lever 20 is overcharged by receiving the biasing force of the biasing member. However, it is maintained in the running start state by the suction of the armature 21 by the yoke 22. When this operation is performed, the armature support member 20a collides with the shock absorbing rubber 21d.

  Here, the contact surfaces of the armature support member 20a and the shock absorbing rubber 21d are substantially orthogonal to the direction of the force transmitted from the armature support member 20a to the shock absorbing rubber 21d (the direction indicated by the arrow F in FIG. 6). Is configured to do.

When the coil 23 is deenergized in the travel start state, the suction of the armature 21 by the yoke 22 is released, and the front curtain drive lever 20 is rotated by a biasing force of a biasing member (not shown).
Japanese Utility Model Publication No. 6-26895 (Figs. 2, 3 etc.)

  In the shutter device having the configuration shown in FIG. 6, the suction force of the armature 21 by the yoke 22 is strong against the force acting in the direction perpendicular to the suction surface of the yoke 22, and the armature 21 is sucked and held at a specific position. I can leave. However, since the attracting force of the yoke 22 is weak with respect to a force having an angle with respect to the direction perpendicular to the attracting surface of the yoke 22, the following problem arises.

  When the contact surfaces of the armature support member 20a and the shock absorbing rubber 21d are not parallel as shown in FIG. 7 due to manufacturing errors of parts, etc., and contact only at the portion farthest from the rotating shaft 20b, the overcharge state When shifting from the starting state to the running start state, an impact force in the direction of arrow A is applied to the flange portion 21b.

  At this time, a force in the direction of arrow B around the black circle e is generated on the suction surface of the armature 21 with respect to the yoke 22, and the suction force of the armature 21 by the yoke 22 is greatly reduced. Further, the holding force of the armature 21 by the yoke 22 varies, and there is a possibility that the timing at which the armature 21 is separated from the yoke 22 may be different by cutting off the energization of the coil 23.

The shutter device according to the present invention includes a shutter blade, a drive member that rotates about a predetermined axis so as to drive the shutter blade by receiving a biasing force from the biasing member, and the biasing member charges the drive member. The armature is held by a holding mechanism that holds the armature in a state in which the armature is held and an armature support member provided on the drive member so as to be movable relative to the armature support member, and an electromagnetic force generated by energization. An electromagnetic member, a flange portion provided on the armature and positioned on the opposite side of the armature support member from the armature support member, and an impact absorbing member disposed between the armature support member, Have From the first state where the driving member is held by the holding mechanism, the driving member released from the holding by the holding mechanism is changed to the second state where the driving member is held by the armature held by the electromagnetic force. In the second state, the armature support member is in contact with only the portion on the predetermined axis side of the shock absorbing member.

  According to the present invention, the armature can be held in a stable state by the electromagnetic force of the electromagnetic member.

  Examples of the present invention will be described below.

  A shutter device (focal plane shutter) that is Embodiment 1 of the present invention will be described. First, a camera system provided with the shutter device of this embodiment will be described with reference to FIG. FIG. 5 is a diagram showing the main configuration of the camera system in the present embodiment.

  The camera system according to the present embodiment includes a camera body 100 and a lens device 101 attached to the camera body 100. In the lens apparatus 101, a zoom lens 101a and a focus lens 101b that move in the optical axis direction to perform zooming and focusing, respectively, and a diaphragm 101c that adjusts the amount of light incident on the image plane are arranged.

  The mirror 102 disposed in the camera body 100 guides a part of the subject light flux that has passed through the lens device 101 to the finder optical system including the pentaprism 103 and the finder lens 104 when in the non-shooting state. The remaining light flux is guided to the focus detection unit 105. The focus detection unit 105 detects the focus of the photographing optical system by a phase difference detection method.

  On the other hand, when the camera system is in the photographing state, the mirror 102 is retracted from the photographing optical path, and the subject light flux that has passed through the lens device 101 passes through the shutter device 106 and reaches the image sensor 107. Thereby, photographing is performed. In the present embodiment, the camera body 100 including the image sensor 107 has been described. However, a camera body that can use a film may be used.

  Next, the configuration of the shutter device of this embodiment will be described. FIG. 1 is a front view showing a driving mechanism for a front curtain blade group and a rear curtain blade group in the shutter device of the present embodiment. FIG. 2 is a partially enlarged view of FIG. 1 and shows a driving mechanism for the front curtain blade group.

  In FIG. 1, reference numeral 1 denotes a shutter base plate, to which components constituting the driving mechanism of the front curtain blade group and the rear curtain blade group are attached. Reference numeral 1 a denotes an aperture through which a subject light flux passes, and is formed on the shutter base plate 1.

  A front curtain drive lever (drive member) 2 is rotatably supported on a front curtain shaft 1b provided on the surface of the shutter base plate 1. A torsion coil spring (not shown) is arranged on the outer periphery of the front curtain shaft 1b, and this torsion coil spring urges the front curtain drive lever 2 in the clockwise direction in FIG. 1 (direction in which the front curtain blade group travels). ing.

  A front curtain drive pin (not shown) is formed at the front end of the front curtain drive lever 2, and the front curtain drive pin passes through a groove 1c formed on the shutter base plate 1 and engages with a front curtain drive arm (not shown). Match. The front curtain drive arm is connected to the front curtain blade group 2a via a link mechanism. The leading blade group 2a is composed of a plurality of shutter blades.

  When the front curtain drive pin moves along the groove 1c by the rotation of the front curtain drive lever 2, the front curtain drive arm rotates to expand or superimpose the front curtain blade group 2a. By the operation of the front curtain blade group 2a, the aperture 1a can be opened (a state in which the subject light beam passes) or closed (a state in which the subject light beam is substantially blocked). Here, the rotation range of the front curtain drive lever 2 is limited by the groove 1c.

  As shown in FIG. 2, an armature support member 2 b is fixed to the front curtain drive lever 2, and a through-hole portion (not shown) formed in the armature support member 2 b is integrated with the front curtain armature 3. The armature shaft 3a attached to is engaged. The armature shaft 3a extends in a direction substantially orthogonal to the suction surface of the front curtain armature 3, and at one end thereof, a flange portion 3b having an outer diameter larger than the inner diameter of the through hole portion is provided.

  A compression spring 4 is arranged between the front curtain armature 3 and the armature support member 2b and on the outer periphery of the armature shaft 3a. The compression spring 4 is a direction in which the front curtain armature 3 and the armature support member 2b are separated from each other. It is energized (vertical direction in FIG. 2).

  Reference numeral 5 denotes an elastically deformable shock absorbing rubber (shock absorbing member), which is disposed between the armature support member 2b and the flange portion 3b in a plane substantially orthogonal to the longitudinal direction of the armature shaft 3a. The shock absorbing rubber 5 is elastically deformed by preventing the armature support member 2b from directly striking the flange portion 3b when shifting from the overcharge state (first state) to the travel start state (second state). Thus, the impact applied to the flange portion 3b from the armature support member 2b is absorbed.

  Reference numeral 6 denotes a front curtain yoke (electromagnetic member), and 7 denotes a front curtain coil (electromagnetic member) provided on the outer periphery of the front curtain yoke 6. When a voltage is applied to the front curtain coil 7, a magnetic force can be generated in the front curtain yoke 6, and the front curtain armature 3 can be attracted by this magnetic force. Reference numeral 8 denotes a screw for fixing the front curtain yoke 6 and the front curtain coil 7 to the shutter base plate 1.

  Reference numeral 9 denotes a charge lever (a part of the holding mechanism), which is rotatably supported by a charge lever shaft 1 f provided on the shutter base plate 1. The charge lever 9 is urged counterclockwise in FIG. 1 by a torsion coil spring.

  The charge lever 9 is connected to a drive lever member (not shown) (part of the holding mechanism) via a charge pin 9a, and the drive lever member is rotated by receiving a driving force from a driving source. The charge lever 9 is rotated clockwise in FIG. 1 against the biasing force of the torsion coil spring. Further, when the driving force from the driving source is not transmitted to the driving lever member, the charge lever 9 rotates counterclockwise in FIG. 1 by the biasing force of the torsion coil spring.

  The cam portion 9 b formed on the charge lever 9 abuts on a charge roller (not shown) provided on the front curtain drive lever 2 in accordance with the rotation of the charge lever 9 to rotate the front curtain drive lever 2. . Specifically, the cam portion 9b of the charge lever 9 is in a state where the traveling of the front curtain blade group 2a is completed (when the front curtain blade group 2a is in a superimposed state), By turning in the counterclockwise direction in FIG. 1, an overcharge state is established after the travel start state.

  The cam portion 9c formed on the charge lever 9 abuts on a charge roller (not shown) provided on the rear curtain drive lever 10 (to be described later) and rotates the rear curtain drive lever 10 as the charge lever 9 rotates. Move. Specifically, the cam portion 9c of the charge lever 9 is in a state where the running of the trailing blade group is completed (when the trailing blade group is in the unfolded state), the trailing blade driving lever 10 is shown in FIG. By turning in the counterclockwise direction, the vehicle is overcharged through the running start state.

  A rear curtain drive lever (drive member) 10 is rotatably supported on a rear curtain shaft 1d provided on the surface of the shutter base plate 1. A torsion coil spring (not shown) is disposed on the outer periphery of the rear curtain shaft 1d, and this torsion coil spring biases the rear curtain drive lever 10 in the clockwise direction in FIG. 1 (the direction in which the rear curtain blade group travels). ing.

  A rear curtain drive pin (not shown) is formed at the tip of the rear curtain drive lever 10, and the rear curtain drive pin passes through a groove 1 e formed in the shutter base plate 1 and engages with a rear curtain drive arm (not shown). Match. The trailing blade driving arm is connected to a trailing blade group (not shown) in a superimposed state via a link mechanism. The trailing blade group is composed of a plurality of shutter blades.

  When the rear curtain drive lever moves along the groove 1e by the rotation of the rear curtain drive lever 10, the rear curtain drive arm rotates to expand or superimpose the rear curtain blade group. By the operation of the rear curtain blade group, the aperture 1a can be opened (a state in which the subject light beam passes) or closed (a state in which the subject light beam is substantially blocked). Here, the rotation range of the trailing curtain drive lever 10 is limited by the groove 1e.

  An armature support member 10 b is fixed to the rear curtain drive lever 10, and an armature shaft 11 a that is integrally attached to the rear curtain armature 11 in a through-hole portion (not shown) formed in the armature support member 10 b. Are engaged. The armature shaft 11a extends in a direction substantially perpendicular to the suction surface of the trailing curtain armature 11, and at one end thereof, a flange portion 11b having an outer diameter larger than the inner diameter of the through hole portion is provided. .

  A compression spring 12 is disposed between the rear curtain armature 11 and the armature support member 10b and on the outer periphery of the armature shaft 11a. The compression spring 12 is a direction in which the rear curtain armature 11 and the armature support member 10b are separated from each other. It is energized (vertical direction in FIG. 1).

  Reference numeral 13 denotes an elastically deformable shock absorbing rubber which is disposed between the armature support member 10b and the flange portion 11b and in a plane perpendicular to the longitudinal direction of the armature shaft 11a. The shock absorbing rubber 13 prevents the armature support member 10b from directly striking the flange portion 11b when shifting from the overcharged state to the travel start state, and is elastically deformed to cause an impact applied to the flange portion 11b from the armature support member 10b. To absorb.

  Reference numeral 14 denotes a rear curtain yoke (electromagnetic member), and reference numeral 15 denotes a rear curtain coil (electromagnetic member) provided on the outer periphery of the rear curtain yoke 14. When a voltage is applied to the rear curtain coil 15, a magnetic force can be generated in the rear curtain yoke 14, and the rear curtain armature 11 can be attracted by this magnetic force. Reference numeral 16 denotes a screw for fixing the rear curtain yoke 14 and the rear curtain coil 15 to the shutter base plate 1.

  Next, the operation of the shutter device having the above-described configuration will be described.

  When the traveling of the front curtain blade group 2a and the rear curtain blade group is completed, the front curtain drive lever 2 and the rear curtain drive lever 10 rotate clockwise in FIG. 1 to rotate the front curtain drive pin and the rear curtain drive pin. The curtain driving pin is in contact with one end of the grooves 1c and 1e.

  In this state, when the charge lever 9 receives a drive force from a drive source (not shown) via the charge pin 9a, the charge lever 9 rotates in the clockwise direction in FIG. 1 about the charge lever shaft 1f. Accordingly, each of the cam portions 9b and 9c comes into contact with the charge roller of the front curtain drive lever 2 and the charge roller of the rear curtain drive lever 10, and the front curtain drive lever 2 and the rear curtain drive lever 10 are attached to the torsion coil spring. It is rotated counterclockwise in FIG. 1 against the force.

  Here, according to the rotation of the front curtain drive lever 2, the armature support member 2b, the front curtain armature 3, the compression spring 4, and the shock absorbing rubber 5 attached to the armature support member 2b move together. . Further, according to the rotation of the rear curtain drive lever 10, the armature support member 10b, the rear curtain armature 11, the compression spring 12, and the shock absorbing rubber 13 attached to the armature support member 10b move together.

As a result, the front curtain armature 3 and the rear curtain armature 11 come into contact with the front curtain yoke 6 and the rear curtain yoke 14 .

At this time, the front-curtain drive lever 2 and the rear-curtain drive lever 10 do not stop but further rotate counterclockwise in FIG. Thereby, the armature support members 2b and 10b are separated from the shock absorbing rubbers 5 and 13 and compress the compression springs 4 and 12. When the compression springs 4 and 12 are compressed, the front curtain armature 3 and the rear curtain armature 11 are pressurized against the front curtain yoke 6 and the rear curtain yoke 14 by receiving the restoring force (spring force) of the compression springs 4 and 12. Contact.

  When the charge rollers of the front curtain drive lever 2 and the rear curtain drive lever 10 move to the cam tops of the cam portions 9b and 9c, the above-described drive lever member stops at a specific position and holds the charge lever 9. As a result, the front curtain drive lever 2 and the rear curtain drive lever 10 are held at positions where the charge rollers abut on the cam tops of the cam portions 9b and 9c, and the shutter device is overcharged.

  When the shutter device is in an overcharged state, a voltage is applied to the front curtain coil 7 and the rear curtain coil 15 when a shooting operation is instructed by operating a release button (not shown) provided on the camera body. Thus, the front curtain yoke 6 and the rear curtain yoke 14 adsorb the front curtain armature 3 and the rear curtain armature 11. Further, the charge lever 9 is rotated counterclockwise in FIG.

  When the cam portions 9b and 9c are released from contact with the charge rollers of the front curtain drive lever 2 and the rear curtain drive lever 10 by the rotation of the charge lever 9, the front curtain drive lever 2 and the rear curtain drive lever 10 are By receiving the biasing force of the torsion coil spring, the coil rotates in the clockwise direction in FIG.

  Here, since the front curtain armature 3 and the rear curtain armature 11 are attracted to the front curtain yoke 6 and the rear curtain yoke 14, the armature support members 2b and 10b collide with the shock absorbing rubbers 5 and 13 and stop. That is, the operations of the front curtain drive lever 2 and the rear curtain drive lever 10 (armature support members 2b and 10b) are blocked by the flange portions 3b and 11b of the front curtain armature 3 and the rear curtain armature 11 held at predetermined positions. The As a result, the shutter device enters a running start state.

  When energization control is performed on the front curtain coil 7 and the rear curtain coil 15 so that the exposure time set in advance is reached when the shutter device is in the running start state, the front curtain yoke 6 and the rear curtain yoke 14 perform the leading edge. The suction of the curtain armature 3 and the trailing curtain armature 11 is released. Then, when the leading blade driving lever 2 and the trailing blade driving lever 10 receive the biasing force of the torsion coil spring, the leading blade blade group 2a and the trailing blade group are moved in the clockwise direction in FIG. Done. Thereby, exposure to the image sensor 107 is performed.

  The biasing force (spring force) of the torsion coil spring that biases the front curtain drive lever 2 and the rear curtain drive lever 10 is set to a very large value in order to improve the traveling speed of the front curtain blade group and the rear curtain blade group. Has been.

  Here, when the shutter device shifts from the overcharge state to the travel start state, the armature support members 2b and 10b collide with the shock absorbing rubbers 5 and 13 as described above. This collision force is caused by the spring force of the torsion coil spring. Increases by the amount that is set larger. The suction force of the front curtain yoke 6 and the rear curtain yoke 14 with respect to the front curtain armature 3 and the rear curtain armature 11 is set such that the suction is not released by the above-described collision.

  However, the contact surfaces of the armature support members 2b and 10b and the shock absorbing rubbers 5 and 13 do not contact substantially the entire surface due to manufacturing errors of parts, etc., and contact only at the position farthest from the shafts 1b and 1d. As described in the above-described problem, the attractive force of the front curtain yoke 6 and the rear curtain yoke 14 is reduced.

  In the present embodiment, as shown in FIG. 2, the total length of the armature shaft 3a is approximately 0.1 mm shorter than the conventional one. Thereby, the armature support member 2b is inclined with respect to the armature shaft 3a, that is, the movement start direction of the front curtain armature 3 attracted to the front curtain yoke 6 (the direction orthogonal to the suction surface of the front curtain yoke 6, It becomes inclined with respect to a surface (first surface) orthogonal to the first direction. At this time, the armature support member 2 b side of the front curtain drive lever 2 is inclined to the front curtain yoke 6 and the front curtain coil 7 side with respect to the front curtain armature 3.

  The armature support member 2b comes into contact with a portion of the shock absorbing rubber 5 closer to the front curtain shaft 1b at least between the overcharge state and the running start state.

  Although not shown in FIG. 2, the drive mechanism for driving the trailing blade group can be configured in the same manner as described above.

  As described above, when the contact position between the armature support member 2b and the shock absorbing rubber 5 is set to a position closer to the front curtain shaft 1b between the overcharge state and the running start state, the armature support member 2b absorbs the shock. The collision force applied to the rubber 5 works in the direction indicated by the arrow F in FIG. When a collision force in the direction of arrow F is applied to the shock absorbing rubber 5, a force in the direction indicated by arrow E acts on the suction surface of the front curtain armature 3.

  Here, the force in the direction of arrow E is not the force in the rotational direction about a specific point in the suction surface as in the prior art (FIG. 6), so the suction force of the front curtain armature 3 by the front curtain yoke 6 is It can suppress that it falls significantly like the past. That is, the suction force (holding force) of the front curtain armature 3 by the front curtain yoke 6 can be stabilized as compared with the prior art, and the running operation of the front curtain blade group and the rear curtain blade group can be performed stably.

  FIG. 3 is a partially enlarged view of the shutter device according to the second embodiment of the present invention, and is a view for explaining the characteristic portion of the present embodiment. In addition, about the same member as the member demonstrated in Example 1, the same code | symbol is attached | subjected and description is abbreviate | omitted. In the following, only the characteristic part of the present embodiment will be described, and other configurations and operations are the same as those of the first embodiment.

  In the present embodiment, the configurations of the front curtain yoke 6 and the front curtain coil 7 are changed so that the suction positions of the front curtain yoke 6 and the front curtain armature 3 approach the front curtain coil 7 side. Specifically, the suction position in the present embodiment includes a rotation center axis of the front curtain drive lever 2 and is a distance L (approximately 0.1 mm) from a plane parallel to the suction surface of the front curtain yoke 6. The position is closer to the front curtain coil 7 side.

  Since the front curtain drive lever 2 can be rotated in the counterclockwise direction in FIG. 3 by the amount that the attracting positions of the front curtain yoke 6 and the front curtain armature 3 are brought closer to the front curtain coil 7 in this way, the armature The support member 2b can be tilted with respect to the armature shaft 3a, and can be brought into contact with the shock absorbing rubber 5 at a portion of the armature support member 2b closer to the front curtain shaft 1b. Therefore, the same effects as in the first embodiment can be obtained in this embodiment.

  3 shows only the drive mechanism for driving the leading blade group 2a, the driving mechanism for driving the trailing blade group can also be configured as described above.

  FIG. 4 is a partially enlarged view of the shutter device according to the third embodiment of the present invention, and is a diagram for explaining a characteristic portion of the present embodiment. Note that the same members as those described in the first embodiment are denoted by the same reference numerals and description thereof is omitted, and only the characteristic portions of the present embodiment will be described below.

  In this embodiment, the thickness of the armature support member 2b (thickness of the portion sandwiched between the compression spring 4 and the shock absorbing rubber 5) decreases so as to become thinner from the side closer to the front curtain shaft 1b. The surface 2b1 on the side of the shock absorbing rubber 5 of 2b is a surface inclined with respect to the armature shaft 3a. That is, the surface 2b1 is a surface parallel to the attracting surface of the front curtain yoke 6 so that the armature support member 2b in the running start state abuts only at a portion of the shock absorbing rubber 5 closer to the front curtain shaft 1b. It is leaning against.

  By forming the surface 2b1 on the armature support member 2b, in the running start state, only the portion of the surface 2b1 closer to the front curtain shaft 1b comes into contact with the shock absorbing rubber 5, so that it is the same as in the first embodiment. The effect of can be obtained.

  4 shows only the drive mechanism for driving the leading blade group 2a, the driving mechanism for driving the trailing blade group can be configured as described above.

1 is a partial front view of a shutter device that is Embodiment 1 of the present invention. FIG. FIG. 3 is a front view illustrating a driving mechanism for a front blade group in the shutter device according to the first exemplary embodiment. The front view which shows the drive mechanism of the front-curtain blade group among the shutter apparatuses which are Example 2 of this invention. The front view which shows the drive mechanism of the front-curtain blade group among the shutter apparatuses which are Example 3 of this invention. Schematic which shows the structure of the camera system provided with the shutter apparatus of this invention. The front view which shows the drive mechanism of the front-curtain blade group in the conventional shutter apparatus. The front view which shows the drive mechanism of the front-curtain blade group in the conventional shutter apparatus.

Explanation of symbols

1b: front curtain shaft 1d: rear curtain shaft 2: front curtain drive lever 2a: front curtain blade group 3: front curtain armature 5, 13 shock absorbing rubber 6: front curtain yoke 7: front curtain coil 9: charge lever 10: rear Curtain drive lever 11: Rear curtain armature 14: Rear curtain yoke 15: Rear curtain coil

Claims (5)

Shutter blades;
A drive member that rotates about a predetermined axis so as to drive the shutter blades by receiving a biasing force from a biasing member;
A holding mechanism for holding the driving member in a state where the biasing member is charged;
An armature supported by an armature support member provided on the drive member in a state of being movable relative to the armature support member ;
An electromagnetic member that holds the armature by electromagnetic force generated by energization;
A flange portion provided on the armature and positioned on the opposite side of the armature support member from the side supporting the armature; and an impact absorbing member disposed between the armature support member ;
From the first state in which the driving member is held by the holding mechanism, the driving member released from the holding by the holding mechanism is shifted to the second state in which the driving member is held by the armature held by the electromagnetic force. ,
In the second state, the armature support member abuts only on a portion of the shock absorbing member on the predetermined axis side. The armature is movable in a first direction with respect to the electromagnetic member, and the shock absorbing member is disposed in a first plane orthogonal to the first direction;
In the second state, the surface of the armature support member on the side of the shock absorbing member is such that the armature support member abuts only on a portion of the shock absorbing member closer to the predetermined axis. The shutter device according to claim 1, wherein the shutter device is inclined with respect to the surface .   The attracting position of the armature and the electromagnetic member is located in a direction opposite to the moving direction of the armature with respect to a plane including the predetermined axis perpendicular to the first direction. Item 3. The shutter device according to Item 2. 3. The shutter device according to claim 2, wherein the thickness of the armature support member in a plane including the rotation direction of the drive member becomes thinner as the distance from the side closer to the predetermined axis becomes. The shutter device according to any one of claims 1 to 4,
An imaging device comprising: an imaging device whose exposure is controlled by the shutter device.

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