JPH0746892Y2 - Shutter mechanism with lens drive mechanism - Google Patents

Description

[Detailed description of the device]

[Industrial applications]

The present invention relates to a shutter mechanism with a lens drive mechanism, and more particularly to a shutter mechanism with a lens drive mechanism which is optimal when a lens having a large number of set stages such as a so-called bifocal lens is used.

[Prior art and its problems]

Using a single step motor as an actuator,
2. Description of the Related Art A shutter mechanism with a lens driving mechanism, which is configured to set a lens feeding position and control a program shutter opening, has been conventionally known. In this type of mechanism, as a matter of course, the opening control of the shutter is performed after the setting operation of the lens feeding position is completed, but generally, after the lens feeding position is set by the rotation pitch number of the step motor, Since the opening of the shutter is controlled after the motor is rotated in the reverse direction and returned to the initial position, it is necessary for the step motor to reciprocate especially in the case of a camera having a large number of lens setting steps such as a bifocal camera. There is a problem in that the time becomes long and the time lag between pressing the shutter button and the actual exposure operation increases. There is also known an example in which a spring or the like is used as a shutter release force source, and the release timing is determined by a step motor. In this case as well, the step motor reciprocates due to the lens set. Since the shutter is released after this, the problem that the time lag between pressing the shutter button and the actual exposure operation increases is not solved, and after the exposure operation is completed, it is linked to, for example, film winding operation. There is a problem that a procedure for charging the shutter mechanism and a mechanism therefor must be provided.

[Means for solving problems]

The present invention has been made in view of these problems.
An object of the present invention is to provide a shutter mechanism with a new release drive mechanism that requires less time lag until shutter release even when a lens with a large number of stages such as a focus lens is used, and does not require a shutter mechanism charge operation. To do. A shutter mechanism with a lens driving mechanism of the present invention is swingably supported, is connected to a shutter blade that also serves as a diaphragm blade, and has an opening / closing lever that is always biased in a direction to open the shutter blade. The shutter mechanism is designed to open the shutter blade by releasing the opening / closing lever from the initial set state and close the shutter blade by returning the opening / closing lever to the initial set state. A pulse-driven step motor capable of reciprocating rotation: A main driving member that transmits rotation of the step motor and can reciprocate, and a release protrusion is continuously provided along its moving direction: The main driving member And is constantly urged in the backward direction of the main drive member,
A ratchet gear in which the main driving member is driven following the main driving member in the forward direction, and the locking points for locking the main driving member in the backward direction correspond to the number of set stages of the photographing lens. And a lens driving member connected to the position adjusting mechanism of the photographing lens: a ratchet click which is swingably supported adjacent to the traveling path of the lens driving member and is biased toward the front ratchet gear. And: an open locking lever having a locking portion for locking the opening / closing lever in an initial set state and swingably supported adjacent to the traveling path of the main drive member; The ratchet gear is pivotally supported by the main drive member and the lens drive member is moved forward until the ratchet gear is in a lockable position by the ratchet click. Destination And a lock release lever whose swing is restricted in the same direction as the swing direction when unlocking the opening lock lever: at the position where the lens driving member corresponds to the photographing distance. After the main drive member is moved forward until the ratchet gear is locked by the ratchet click, the main drive member is moved until at least one of the release protrusions passes through the tip of the lock release lever. The opening / closing lever is released by returning it. Preferably, the shutter mechanism with a lens driving mechanism according to the present invention is in addition to the above: it is swingably supported, and by engaging with the opening / closing lever, the opening / closing lever is biased in a direction to open the shutter blade. A closing lever that urges the shutter blade with a large force in a direction to close the shutter blade; an iron piece lever that is swingably supported and bidirectionally engages with the closing lever; A magnet for magnetizing the iron piece lever at the retracted position of the closing lever: demagnetizing the magnet at the exposure end timing, and urging the opening / closing lever in the closing direction by the urging force of the closing lever. It was made. More preferably, the shutter mechanism with a lens driving mechanism according to the present invention is in addition to the above: the arm portion extended from the closing lever has an initial position of the main driving member on a first protrusion formed on the main driving member. In contact with each other to prevent the closing lever from swinging in a direction to urge the opening / closing lever in the closing direction: an arm portion extended from the opening locking lever is formed in the main drive member. The ratchet is provided so as to prevent the opening locking lever from swinging in a direction to release the locking of the opening / closing lever by abutting the first protruding portion at the initial position of the main drive member. The click abuts on the second protrusion formed on the main drive member at an initial position of the main drive member to restrict the ratchet click from swinging toward the ratchet gear. I: at the time of backward movement of the main drive member,
The first protrusion abuts on an arm portion extended from the closing lever to initially set the closing lever,
Of the second locking lever comes into contact with an arm portion extended from the opening locking lever to initially set the opening locking lever,
The projecting portion abuts against the ratchet click to initially set the ratchet click so that the shutter mechanism is automatically initialized when the main drive member is returned.

[Action]

That is, according to the shutter mechanism with the lens driving mechanism of the present invention, the main driving member moves forward by the rotation of the step motor, and the lens driving member also moves forward following this. The lens driving member adjusts the position of the photographing lens, that is, the focus. When the lens drive member is moved forward to the position corresponding to the subject distance, the step motor reverses to move the main drive member back, but the ratchet gear formed on the lens drive member is engaged by ratchet click to drive the lens. The member is positioned at the proper position. When the main drive member returns, the release projection formed on the main drive member passes through the tip of the lock release lever, and at this timing, the lock release lever centering around the swing shaft on the open lock lever is released. The swinging is restricted, and the entire opening locking lever swings to release the opening / closing lever. Therefore, since the shutter release is performed by moving the main drive member back by one after the positioning of the photographing release, the shutter release is performed by reducing the number of the release projections by one, and the time lag from pressing the shutter button to opening the shutter blades is shortened. . Further, when the shutter blade is opened, the magnet magnetically attaches the iron piece lever, and the closing lever is engaged with the iron piece lever and is retracted to a position where the swing of the opening / closing lever in the opening direction is not hindered. When the magnet is demagnetized at the timing when the desired exposure time is obtained, the closing lever swings together with the iron piece lever, and biases the opening / closing lever in the closing direction to close the shutter blade. Further, when the main drive member is returned to the initial position after closing the shutter blades, the first protruding portion comes into contact with the arm portion extended from the closing lever to initially set the closing lever and the first protruding portion. Abut the arm extended from the open lock lever to initially set the open lock lever, the second protrusion abuts the ratchet click to initially set the ratchet click, and the main drive member returns. Sometimes an automatic initial setting of the shutter mechanism is done.

【Example】

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. First, FIG. 1 is a plan view of a shutter mechanism with a lens driving mechanism according to an embodiment of the present invention, and FIG. 2 is a plan view of shutter blades 2 and 3 provided on the back side of a shutter base plate 1. An exposure aperture 1a is formed in the center of the shutter base plate 1, and a drive ring 4 and a lens drive ring 5 are supported with respect to the shutter base plate 1 so as to be rotatable around the aperture 1a. The driving ring 4 is a member for transmitting driving force to the lens driving ring 5, unlocking a shutter release member described later, and automatically initializing the shutter mechanism.
Further, the lens drive ring 5 is a member for transmitting a driving force for the feeding operation of the lens barrel (not shown) and for positioning the lens barrel. A rack 4a is formed on a part of the outer circumference of the drive ring. The rack 4a is connected to a rotor shaft of a step motor 9 via a pinion 6-second gear 7-pinion 8, and the drive ring 4 is The rotation of the pinion 8 is transmitted in a path reverse to the above and rotates. The magnet of the step motor 9 is omitted in the drawing. Further, a mountain-shaped release protrusion is provided on a part of the outer periphery of the drive ring 4.
A plurality of 4b are provided in series, and the release projection 4b is a member for releasing the shutter mechanism when returning (right turning). Further, the origin arm 4c formed so as to project on the outer peripheral portion of the drive ring 4 engages with the stopper 1b planted in the shutter base plate 1 and the right rotation limit of the drive ring 4 itself (that is, the origin of the drive ring 4). To regulate the In addition, the outer periphery of the drive ring 4 has three bent portions 4d and 4e.
・ 4f is formed, but the action of these bent parts 4d, 4e, and 4f will become clear later. Next, on the surface of the lens driving ring 5, for example, three angular dowels 5a are planted at 120-degree intervals, and these angular dowels 5a engage with a lens barrel (not shown), The amount of extension of the lens barrel (not shown) is determined by the turning angle. Further, a pulling spring 10 is stretched by a source arm 5b formed so as to project on the outer peripheral portion of the lens driving ring 5, so that the lens driving ring 5 receives a right-handed force from the pulling spring 10 and the lens driving ring 5b. The origin arm 5c formed so as to project on the outer peripheral part of the stopper is a stopper planted on the planting shutter base plate 1.
It engages with 1c to regulate the right rotation limit of the lens drive ring 5 (that is, the origin of the lens drive ring 5). Further, an arm 5d that abuts the bent portion 4d of the drive ring 4 is formed so as to project on the outer peripheral portion of the lens drive ring 5,
The lens drive ring 5 receives a left-handed force from the drive ring 4 and rotates leftward from the time when the drive ring 4 turns counterclockwise and the bent portion 4d contacts the arm 5d. Further, a part of the outer circumference of the lens driving ring 5 has a ratchet gear 5e having a number corresponding to the number of set stages of the taking lens (not shown).
Are lined up. Next, 11 is a ratchet click for engaging with the ratchet gear 5e. The ratchet click 11 is swingably supported on the shutter base plate 1 by a shaft 12 and receives a left turning force from a tension spring 13. . In the initial state (the state shown in FIG. 1), the inclined surface 11a of the ratchet click 11 contacts the bent portion 4e of the drive ring 4 and the left rotation of the ratchet click 11 is restricted. When the part 4e separates from the inclined surface 11a, ratchet click 1
1 is rotated counterclockwise by the tension of the pulling spring 13 and its engaging portion 11b
Becomes ready to engage with the ratchet gear 5e. Next, 14 is an opening / closing lever for opening / closing the shutter blades 2 and 3, and the opening / closing lever 14 is swingably supported by a shaft 15 on the shutter base plate 1. The shutter blades 2 and 3 are swingably supported by a shaft 16 planted on the back surface of the shutter base plate 1. The dowels 14a and 14b planted on the back surface of the opening / closing lever 14 penetrate the shutter base plate 1 and engage with the long grooves 2a formed in the shutter blade 2 and the long groove 3a formed in the shutter blade 3, respectively. . Therefore, if the open / close lever 14 turns counterclockwise about the shaft 15,
Since the shutter blade 2 rotates right about the axis 16 and the shutter blade 3 rotates left about the axis 16, the aperture 1a is opened. The opening / closing lever 14 is constantly receiving a left-handed force from the pulling spring 17, but in the set state, the square dowel 14c planted on the surface of the opening / closing lever 14 is locked by the locking portion 18a of the open locking lever 18. Left-handed rotation is restricted. The open / close locking lever 18 is swingably supported by a shaft 19, but in the initial set state, the first arm 18
The tip of b comes into contact with the bent portion 4d of the drive ring 4 to restrict left-handed rotation, and since the locking portion 18a locks the square dowel 14c, right-handed rotation is also restricted. Further, a lock release lever 20 is pivotally supported on a shaft 18d provided at the tip of the second arm 18c of the open lock lever 18. The lock release lever 20 is formed of a bifurcated arm sandwiching the shaft 18d, and one of the restricting arms 20a opens and comes into contact with the dowel 18e planted in the lock release lever 18 to release the lock release lever 20a. Left-handed rotation is restricted (state shown in FIG. 1). The other arm, the trigger arm 20b, is on the passage of the release protrusion 4b formed on the drive ring 4, and when the drive ring 4 is rotated to the left, the release protrusion 4b passes so that the lock release lever 20 moves axially. Turn right around 18d. On the other hand, since the counterclockwise rotation about the shaft 18d of the lock release lever 20 is restricted by the contact between the dowel 18d and the restricting arm 20a as described above, when the drive ring 4 is rotated rightward, the release protrusion 4b is triggered by the trigger arm. When passing through 20b, the opening locking lever 18 as a whole turns counterclockwise around the shaft 19, and the locking of the square dowel 14c by the locking portion 18a is released. Next, 21 is an iron piece lever pivotally supported by the shaft 15. The iron piece lever 21 is given a left-handed force by a pulling spring 22, and an iron piece 21a of the iron piece lever 21 is magnetically attached by a magnet 23. Further, 24 is a closing lever pivotally supported by the shaft 15, and the closing lever 24 is a pulling spring 22 for pulling the iron piece lever 21 and an opening / closing lever.
The right turning force is given by the pulling spring 25 having a tensile force larger than the combined tensile force of the pulling spring 17 for pulling 14.
(Here, the pulling force is used to mean a moment to be precise.) In the initial setting state of the closing lever 24, the first engaging arm 24a of the closing lever 24 is in contact with the bending portion 4d of the drive ring 4. Rightward rotation is restricted, and even after the leftward rotation of the drive ring 4 is started, the second engaging arm 24b contacts the boss 21b planted on the back surface of the iron piece lever 21, and rightward rotation is restricted. But then
When the magnet 23 is demagnetized, the pulling force of the pulling spring 25 is stronger than the combined pulling force of the pulling spring 22 and the pulling spring 17, so that the closing lever 24 is rotated clockwise by the pulling spring 25. On the other hand, on the surface of the opening / closing lever 14 described above, the dowel 14d is planted on the locus through which the operating arm 24c of the closing lever 24 passes when the closing lever 24 is turned clockwise. The operating arm 24c comes into contact with the dowel 14d to open / close the lever.
14 turns right. A gear portion 14e provided at the tip of the opening / closing lever 14 is for adjusting the opening speed of the shutter blades 2 and 3 in association with a governor mechanism (not shown). Next, the operation of this embodiment will be described with reference to the above matters. First, in the initial state, the lens drive mechanism and each part of the shutter mechanism are in the states shown in FIGS. When a shutter button (not shown) is pressed in this state, the distance measuring mechanism (not shown) measures the subject distance during half-stroke of the shutter button and generates distance data.
Further, when the shutter button is fully stroked, a pulse for forward rotation is applied to the step motor 9, and at the same time, the magnet 23 is excited. The number of pulses applied to the step motor 9 at this time is determined in correspondence with the distance data. Now, when the forward rotation pulse is applied to the step motor 9, the pinion 8 rotates counterclockwise, the counterclockwise rotation of the pinion 8 rotates the second gear 7 and the pinion 6 coaxial therewith, and the pinion 6 rotates clockwise. The drive ring 4 is transmitted to the rack 4a and rotates left. In this way, in the process in which the drive ring 4 rotates counterclockwise, the release protrusions 4b that are continuously provided on the outer peripheral portion of the drive ring 4 sequentially contact the trigger arm 20b of the lock release lever 20, but the lock release lever 20 only rotates left. Is controlled and clockwise is not controlled, the lock release lever 20 rotates clockwise each time the release protrusion 4b hits, and the trigger arm 20b rotates the release protrusion 4b.
Get over every one. Also, in the process of the drive ring 4 turning left,
When 4d hits the arm 5d of the lens drive ring 5, the lens drive ring 5 is driven by the drive ring 4 and counterclockwise against the tension of the pulling spring 10. Then, the counterclockwise rotation of the lens driving ring 5 causes the angular dowel 5a to rotate the lens barrel (not shown) to extend the taking lens. Now, when the drive ring 4 turns left by a predetermined angle, the inclined surface 11a of the ratchet click 11 and the bent portion 4e of the drive ring 4
Has been disengaged. Therefore, when the lens drive ring 5 is turned counterclockwise, the ratchet click 11 is pulled by the pulling spring 13 and turned counterclockwise, and the engaging portion 11b is sequentially engaged with the ratchet gear 5e. As described above, the number of forward rotation pulses applied to the step motor 9 is determined in accordance with the distance data indicating the shooting distance, so that the left rotation of the pinion 8 is stopped when the shooting lens is extended to a desired position. The left rotation of the drive ring 4 and the lens drive ring 5 is also stopped. Then, the lens driving ring 5 is stopped in a state where the desired pawl of the ratchet gear 5e is locked to the engaging portion 11b. After the left rotation of the pinion 8 is stopped in this manner, a reverse rotation pulse is given to the step motor 9, and the pinion 9 is rotated right. The right rotation of the pinion 9 is transmitted to the rack 4a via the second gear 7-pinion 6, and the drive ring 4 rotates right, but the lens drive ring 5 stops while being locked by the engaging portion 11b. ing. In the present embodiment, the release projection 4b connected to the drive ring 4 has a double pitch of the ratchet gear 5e connected to the lens drive ring 5, and the drive ring 4 changes from left-handed motion to right-handed motion. At the timing of transition, the trigger arm 20b of the lock release lever 20 rides on one of the peaks of the release projection 4b connected to the drive ring 4 or falls in one of the valleys. Since the trigger arm 20b rides on the peak of the release protrusion 4b or falls in the valley, it depends on whether the number of forward rotation pulses applied to the step motor 9 is odd or even. It goes without saying that this is known to the pulse number control circuit. Therefore, in this embodiment, when the trigger arm 20b is riding on the mountain portion of the release protrusion 4b, a pulse for reverse rotation of 3 pitches is applied to the step motor 9, and the trigger arm 20b is moved to the release protrusion 4b. When it has fallen to the valley, a pulse for reverse rotation of 2 pitches is applied to the step motor 9. Therefore, when the step motor 9 rotates in the reverse direction, the trigger arm
The trigger arm 20b of the lock release lever 20 can move over the release protrusion 4b of the drive ring 4 to the left by one mountain, regardless of whether the release protrusion 4b of the drive protrusion 4b is 20b. Become. When the trigger arm 20b of the lock release lever 20 gets over the release protrusion 4b of the drive ring 4, the lock release lever 20 receives a left-handed turning force from the release protrusion 4b, but the dowel 18d implanted in the open lock lever 18 Since the restricting arm 20a abuts against the shaft, the left-hand rotation of the locking release lever 20 alone about the shaft 18d is restricted. 18a by horn dowel 14c
Is unlocked. Therefore, the opening / closing lever 14 is moved by the tension of the pulling spring 17 to the shaft 15
As a result, the shutter blade 2 rotates clockwise, the shutter blade 3 rotates counterclockwise, and the aperture 1a is opened. In this way, at the same time when the aperture 1a is opened, the AE circuit (automatic exposure circuit) not shown is triggered, and when the desired exposure time is obtained, the magnet 23 is demagnetized. While the magnet 23 was being excited, the second engaging arm 24b of the closing lever 24 was engaged with the dowel 21b of the iron piece lever 21, but when the magnet 23 was demagnetized, the iron piece lever 21 was turned left. Closing levers than tensioning springs 22
Since the tension spring 25 for giving the right turning force to 24 is stronger,
The closing lever 24 turns right against the tension spring 22 while the second engaging arm 24b remains engaged with the dowel 21b, and in this right-hand turning process, the operating arm 24c of the closing lever 24 moves the dowel 14d of the closing lever 14. Are engaged to rotate the opening / closing lever 14 clockwise about the shaft 15. By rotating the opening / closing lever 14 clockwise, the shutter blade 2 rotates counterclockwise and the shutter blade 3 rotates clockwise to close the aperture 1a. After the exposure operation is completed in this way, the step motor 9
On the other hand, when a pulse for reverse rotation is applied, the rotation of the pinion 8 is transmitted through the above-mentioned path, and the drive ring 4 rotates right. In the process of the drive ring 4 turning clockwise, the bending part of the drive ring 4
Since the bending portion 4d rotates the open locking lever 18 to the right from the time when the 4d contacts the circular portion at the tip of the first arm 18b of the open locking lever 18, the square dowel 14c of the opening / closing lever 14 opens and locks. The opening / closing lever 14 and the open locking lever 18 are initially set by being locked by the locking portion 18a of the lever 18. Similarly, in the process in which the drive ring 4 rotates clockwise, the drive ring 4
Since the bent portion 4d rotates the closing lever 4 counterclockwise from the time point when the bent portion 4d comes into contact with the first engaging arm 24a of the closing lever 24, the closing lever 24 is initially set. With the counterclockwise rotation of the closing lever 24, the iron piece lever 21 is rotated leftward by the tension of the pulling spring 22, and the iron piece lever 21 is also initially set. Further, from the time when the bent portion 4e comes into contact with the inclined surface 11a of the ratchet click 11 by the right rotation of the drive ring 4, the bent portion 4e
Rotates the ratchet click 11 to the right, the ratchet click 11 is also initially set, and the engagement between the engaging portion 11b and the ratchet gear 5e is released, so that the lens drive ring 5 is moved to the right by the tension of the pulling spring 10. Rotate and origin arm 5c
The lens drive ring 5 is also initially set at the time when the abutting contact with the stopper 1c. In the above description, the drive ring 4 and the lens drive ring 5 are rotatably provided around the aperture, the drive ring 4 is reciprocally rotated by the step motor, and the lens drive ring 5 follows the forward and backward directions of the drive ring 4. Although the examples have been shown, these may be those that directly operate. Further, in the above, the example in which the release projections have a double pitch of the ratchet gear has been shown, but the release projections do not necessarily have to have a double pitch, and may have the same pitch. Further, although the description has been given above on the premise of the focus adjusting mechanism using the lens barrel, the operation of the lens system itself for driving a part of the lenses in the lens system is not directly involved in the present invention.

【effect】

As described above, according to the present invention, the shutter release operation is performed when the step motor is rotated in the reverse direction after the lens is positioned, and it is not necessary to return the step motor to the initial position prior to the shutter release. Even when the present invention is applied to a lens driving mechanism in which the number of lens stages is increased due to the mechanism, the time lag from pressing the shutter button to shutter release can be shortened. Moreover, the step motor does not perform the initial return operation at the time when the exposure operation is completed, and the shutter mechanism can be charged when the step motor is returned to the initial position thereafter, and a special charging procedure for the shutter mechanism is provided. There is no need.

[Brief description of drawings]

FIG. 1 is a plan view of a shutter mechanism with a lens driving mechanism according to an embodiment of the present invention, and FIG. 2 is a plan view of shutter blades provided on the back side of a shutter base plate that also serve as diaphragm blades. 2-3 shutter blades 4 drive ring 4b release projections 4d 4e bent parts 5 lens drive ring 5a square dowel 5e ratchet gear 9 step motor 11 ...... Ratchet click 14 …… Opening and closing lever, 18 …… Opening locking lever 18b …… First arm, 20 …… Locking release claw 20a …… Regulating arm, 24 …… Closing lever 21 …… Steel piece lever, 23… … Magnet 24a …… First engaging arm

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G03B 13/34

Claims (3)

[Scope of utility model registration request] 1. An opening / closing lever, which is swingably supported, is connected to a shutter blade that also serves as a diaphragm blade, and is always biased in a direction to open the shutter blade, and the opening / closing lever is in an initial set state. A shutter mechanism that opens the shutter blades by releasing the shutter blades and closes the shutter blades by returning the opening / closing lever to the initial set state. Rotation of the step motor is transmitted, and reciprocation is possible,
A main drive member in which release projections are continuously provided along the moving direction of the main drive member, and the main drive member is provided side by side with the main drive member being constantly urged in the backward direction of the main drive member and in the forward direction of the main drive member. Has a ratchet gear that is driven following the main driving member and has locking points that are locked in the backward movement direction of the main driving member in correspondence with the number of set stages of the photographing lens, and adjusts the position of the photographing lens. A lens driving member connected to the mechanism, a ratchet click that is swingably supported adjacent to a traveling path of the lens driving member, and is biased toward a front ratchet gear, and the opening / closing lever is in an initial set state. And an open locking lever that is swingably supported adjacent to the traveling path of the main drive member, and is pivotally supported on the open locking lever so that the ratchet gear is Lockable by ratchet click When the main drive member moves the lens drive member forward until it reaches the active position, the tip of itself faces the path through which at least one release projection passes, and the unlocking of the opening lock lever is performed. A lock release lever whose swinging in the same direction as the time is regulated, and the ratchet gear is locked by the ratchet click at a position corresponding to the shooting distance of the lens driving member. After the main driving member is moved forward, the opening / closing lever is released by returning the main driving member until at least one of the release projections passes through the tip of the locking release lever. A shutter mechanism with a lens driving mechanism, which is characterized in that 2. A shutter mechanism with a lens driving mechanism according to claim 1 of the utility model registration, which is swingably supported and engages with the opening / closing lever so that the opening / closing lever opens the shutter blade. A closing lever that urges the shutter blade in a direction that closes the shutter blade with a force greater than the urging force in the direction, an iron piece lever that is swingably supported and is bidirectionally engaged with the closing lever, and an opening of the opening / closing lever. A magnet that magnetically attaches the iron piece lever at a position where the closing lever is retracted outside the swing range of the direction, demagnetizes the magnet at the exposure end timing, and closes the opening / closing lever by the urging force of the closing lever. A shutter mechanism with a lens drive mechanism, which is characterized by swinging in a direction. 3. A shutter mechanism with a lens driving mechanism according to claim 2, wherein the arm portion extending from the closing lever is attached to a first protrusion formed on the main driving member. The main lever is abutted at the initial position so as to restrict the closing lever from swinging in a direction to urge the opening / closing lever, and the arm portion extended from the opening locking lever is provided. The first projecting portion formed on the main drive member is abutted at the initial position of the main drive member to prevent the opening locking lever from swinging in a direction to unlock the opening / closing lever. The ratchet click abuts against the second protrusion formed on the main drive member at the initial position of the main drive member, and the ratchet click swings in the direction of the ratchet gear. When the main drive member is returned, the first protrusion abuts on the arm portion extended from the closing lever to initially set the closing lever, and the first protrusion is The opening locking lever is brought into initial contact with the arm extending from the opening locking lever, and the second projection comes into contact with the ratchet click to initially set the ratchet click. A shutter mechanism with a lens driving mechanism, which is characterized in that