JP3035911B2 - Camera with lens barrier - Google Patents

Description

Description: Object of the Invention (Industrial Application Field) The present invention relates to a camera having a lens barrier that covers the front surface of a photographic lens, and in particular, can be extended before the lens barrier when the camera is used. The present invention relates to a camera with a lens barrier having a taking lens.

(Prior Art) A camera is known in which a photographing lens is retracted into the camera body when the camera is not used, and the photographing lens can be pulled forward from the camera body when used. Further, in such a camera, a camera in which a lens barrier for protecting a photographing lens is openably and closably incorporated is also known. The known lens barrier built-in cameras are roughly classified into, for example, a type in which a lens barrier is provided to be openable and closable inside a drawable taking lens barrel as disclosed in Japanese Patent Application Laid-Open No. 59-165040. And a lens barrier that covers a part of the front of the camera together with the taking lens, as disclosed in, for example, JP-A-60-122930.
When the camera is used, it is classified into a type configured to slide along the front surface of the camera and retract from the front surface of the photographing lens.

(Problems to be Solved by the Invention) However, a camera known in JP-A-59-165040 or the like requires a sufficient space for opening and closing a lens barrier in a taking lens barrel. There is a disadvantage that the length and the outer diameter of the taking lens barrel become large and the camera becomes large. In a camera known in Japanese Patent Application Laid-Open No. 60-122930 or the like, when the lens barrier is closed with the lens barrel protruding from the camera, the lens barrier collides with the side surface of the lens barrel. There is a risk that the lens barrel may be damaged and the movement of the lens barrel in the optical axis direction may not be smooth, so after confirming that the lens barrel has been completely retracted, take the lens with the lens barrier There was a drawback that the front face had to be covered.

Therefore, the present invention solves the above-mentioned problems of the conventional camera, without increasing the size of the taking lens barrel moving in the optical axis direction, and moving the taking lens barrel in the optical axis direction and moving the lens barrier. It is an object of the present invention to provide a camera with a lens barrier that can smoothly and reliably perform displacement in a direction perpendicular to the optical axis without interfering with each other.

[Configuration of the invention]

(Means for Solving the Problems) In order to solve the above-mentioned object, in the present invention, the entire photographing lens barrel (1) located at the extended position protruding from the front surface of the camera body is set to the optical axis when not in use. In a camera that can be stored by moving to a predetermined retracted position along the distance between a closed position that covers the front surface of the entire photographing lens barrel and a retracted position that is retracted from the front surface of the entire photographing lens, manual operation from outside the camera is performed. A lens barrier (4) that is movable substantially orthogonal to the optical axis in accordance with an operation, and that is arranged so as to be able to interfere with the photographic lens barrel during the movement at the extension position. And when the taking lens barrel is at the extended position, interlocking with the movement to the extended position, prevents movement of the lens barrier to the closed position in accordance with the manual operation, thereby preventing the photographing lens from moving. Locking means (4) for preventing the interference between the lens barrel and the lens barrier.
a, 10) and release means (1a, 10a) for releasing movement inhibition of the lens barrier in conjunction with the movement of the taking lens to the retracted position when the taking lens moves to the retracted position. I have.

(Operation) After retracting the lens barrier (4) from the closed position on the front surface of the photographing lens barrel (1) to the open position, when the photographing lens barrel (1) is extended, the locking means (10, 4a) is locked. As a result, the lens barrier (4) is locked in its open position. for that reason,
The lens barrier (4) cannot return to the closed position while the taking lens barrel (1) is in the extended position protruding from the front surface of the camera body (3).

When the taking lens barrel (1) is retracted from the extended position,
At the end, the release means (1a, 10a)
Release the lock of the lens barrier (4) by 0, 4a).
Thereby, the lens barrier (4) can be moved to the closed position, and can cover the front surface of the taking lens barrel (1). In this case, since the tip of the taking lens barrel (1) is located at a position where it is retracted away from the path of the lens barrier (4), the lens barrier (4) collides with the side surface of the taking lens barrel (1) There is nothing to do.

(Example) Next, an example of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front cross-sectional view of a camera showing a first embodiment of the present invention, and FIG. 2 is a partially cutaway front view of the embodiment camera shown in FIG. In FIG. 1, a photographing lens barrel 1 holding a photographing optical system L is configured to be movable in the optical axis direction by a lens moving device (not shown) driven by a drive motor 2, and is provided on a front surface of a camera body 3. It is placed in a protruding state. The lens barrier 4 is placed at an open position retracted from the front surface of the taking lens barrel 1, and is configured to be slidable left and right along a guide rail 3A provided on the camera body 3 shown in FIG. . Lens barrier 4
On the other side are two arms connected to each other by pins 5
A link mechanism consisting of 6A and 6B is provided, and one arm 6A
Is fixed to the camera body 3 by a pin 7 and one end of the other arm 6B is fixed to the lens barrier 4 by a pin 8.
It is fixed to the back of. The one arm 6A is always urged in the counterclockwise direction by the torsion coil spring 9, so that the lens barrier 4 always has a movement behavior to the left in FIG.

At the right end of the rear surface of the lens barrier 4, a locking hole 4a is provided as shown in FIG. 1, and one end of a locking pin 10 displaceable in the optical axis direction is inserted into the locking hole 3a, Thus, the lens barrier 4 is prevented from traveling rightward by the urging force of the torsion coil spring 9. Further, on the rear surface of the lens barrier 4, the projections 12 to be engaged with the actuating pin 11 which passes through the camera body wall to open and close the first switch S _1, which is provided inside the camera body 3 is provided. The other end of the locking pin 10 has a projection 10a that engages with the flange 1a of the taking lens barrel 1 when the taking lens barrel 1 is retracted into the camera body 1 along the optical axis. The other end of the locking pin 10 is provided with a second switch S ₂
Are engaged with each other. The locking pin 10 is constantly urged upward in FIG. 1 by the movable contact piece 13a.

Furthermore, a third switch is provided inside the camera body 3.
SW ₃ is provided, and when the photographing lens barrel 1 is extended as shown in FIG. 1, the movable switch 14a engages with the flange portion 1a of the photographing lens barrel 1 so that the third switch is provided. S ₃
Is configured to close. Button 15 press the front wall of the camera body 3 is provided, this by pressing the push button 15 is a fourth switch S ₄ is closed, the photographic lens barrel 1 by driving of the drive motor 2, as shown in Figure 3 It is configured to be rewritten.

As shown in FIG. 2, a finder window 16, distance measuring windows 17a and 17b, and a flash window 18 are provided on the front surface of the camera body 1. The viewfinder window 16 and the distance measurement windows 17a, 17b
As shown in FIG. 3, when the lens barrier 4 is in the closed position, it is configured to be covered by the lens barrier 4 together with the taking lens barrel 1 as shown in FIG. In this camera, the lens barrier 4 is the fourth lens barrier.
When the shutter is closed as shown in the figure, even if the release button 19 is pressed, a sequence such as distance measurement, photometry, and opening / closing of a shutter is not performed.

Further, when the lens barrier 4 is moved from the front surface of the taking lens barrel 3 to the open position as shown in FIG. 5, a locking hole 4a formed at the right end of the rear surface of the lens barrier 4 is locked.
When it reaches the position facing the tip of 10, it is configured to prevent the movement to the left by a stopper (not shown), and at the same time, the projection 12 abuts the operating pin 11 to displace the operating pin 11 downward. ing. Thus, the first switch S ₁
An ON state, the rotation of the drive motor 2, the photographing lens barrel 1 is extended, locking pin 10 is raised by the restoring force of the second switch S ₂ of the movable contact piece 13a, the tip of the locking It is possible to rush into the hole 4a.

FIG. 6 is a circuit diagram for controlling the drive motor 2. Output signals of the switches S _{1 to} S ₄ are input to a central processing unit (CPU) 26, and a motor control circuit (MD) 21 drives the drive motor 2 according to a signal from the central processing unit 20.
Stop and forward / reverse rotation. The central processing unit 20 controls not only the drive motor 2 for moving the taking lens barrel 1 but also
It is also used for automatic winding of film and shutter, automatic rewinding of film, automatic exposure control, automatic focus adjustment, and the like. However, in FIG. 5, only a circuit for extending and retracting the photographing lens barrel 1 is shown.

FIG. 7 is a flow chart showing the operation when the taking lens barrel 1 housed in the camera body 3 is extended as shown in FIG. 3, and FIG. 8 is the extending movement as shown in FIG. FIG. 9 is a flowchart showing an operation when the photographing lens barrel 1 placed at the position is retracted into the camera body 3. Hereinafter, the operation of the embodiment shown in FIGS. 1 to 5 will be described with reference to the flow charts of FIGS. 7 and 8.

Third, as shown in the figure, when in position narrowing Repetitive photographing lens barrel 1, the second switch S ₂ is ON via the locking pin 10
Is held in a state, also the lens barrier 4 is photographic lens barrel 1, a viewfinder window 16 and the distance measurement window 17a, because it is placed in the closed position covering the 17b, first switch S ₁ is placed in the OFF state I have. The lens barrier 4 moves to the left in FIG. 4 against the urging force of the torsion coil spring 9 and retracts from the front surface of the taking lens barrel 1 so that the lens barrier 4 reaches an open position as shown in FIG. Then, the projections 12 provided on the back surface right end of the lens barrier 4 in contact with oN the first switch S ₁ and pushed down so the tip of the actuating pin 11. At this time, the locking hole 4a provided in the lens barrier 4 is
Reach the position directly above.

On the other hand, when the lens barrier 4 is in the closed position shown in FIG. 3, the central processing unit (CPU) 20 normally enters a so-called standby state in which unnecessary internal operations are stopped in order to minimize power consumption. Is in. Therefore, the first
When an interrupt is applied by ON of the switch S _1, the central processing unit (CPU) 20 starts the operation, the process is performed in accordance with feeding routine shown in FIG. 7 for feeding the photographic lens barrel 1.

In feeding routine shown in FIG. 7, when the lens barrier 4 is moved to the open position shown in FIG. 5, the central processing unit first switch S ₁ is received turned ON, the signal (CP
U) 20, the drive motor 2 is started via the motor drive circuit 21, and the extension of the photographic lens barrel 1 is started (step 101). Its feeding operation is either ON of the third switch S ₃ is determined in step 102 or the first in step 104,
OFF switch S ₁ is it continues until it is determined.

When the drive motor 2 is activated and the photographic lens barrel 1 is extended upward (in the direction of arrow A) in FIG. 5, the locking pin 10 follows the movement of the photographic lens barrel 1 and the second switch is turned on.
Displaced upward by the restoring force of the variable contact piece 13a of S _2. Thus, since the tip of the locking pin 10 is inserted into Kakariko hole 4a, the lens barrier 4 is prevented from automatic return to the right at the tip of the locking pin 10, the second switch S ₂ at the same time Can be switched to the OFF state.

When the photographic lens barrel 1 has reached the feed completion position as shown in FIG. 1, the flange portion 1a provided at the lower end of the photographic lens barrel 1 is in contact with the movable contact piece 14 of the third switch S ₃ 3 to oN the switch S _3. In step 102, the third switch S ₃ is becomes ON, the central processing unit (CPU) 20 that inputs the ON signal, the photographic lens barrel 1 by stopping the driving motor 2 controls the motor drive circuit 21 The feeding is stopped (step 103), and the process proceeds to another process such as a next distance measurement routine or a photometry routine.

When determining the first 1 OFF switch S ₁ in step 104, i.e. if it is determined that there is no lens barrier 4 is the open position, the central processing unit (CPU) 20, the process proceeds to step 105, transfer of the photographic lens barrel 1 The drive motor 21 is started via the motor drive circuit 21 so as to rotate in the reverse direction, and the retraction of the taking lens barrel 1 is started.

This retracting operation is performed in order to prevent the collision accident because the lens barrier 4 may collide with the extending photographing lens barrel 1 when the lens harrier 4 is fully opened and closed shortly thereafter. . © narrowing the Repetitive is continued until the 2 ON switch S ₂ in step S106 is determined. Progressed transfer of the photographic lens barrel 1, the second switch S ₂ in step 106 it is determined that becomes turned ON, the stopped narrowing Repetitive photographing lens at step 107, one or enters the standby state Shifts to another processing such as rewinding of the film.

After the taking lens barrel 1 is extended to the position shown in FIG.
When the release button 19 is pressed, automatic focus adjustment, automatic exposure adjustment, exposure operation, and the like are performed. When accommodating the photographic lens barrel 1 to the camera body 3, the fourth switch S ₄ is turned ON push button 15 is pressed, the photographing lens barrel 1
The processing is performed according to a repetition routine shown in FIG.

In Figure 8, a fourth switch S ₄ is turned ON push button 15 is pressed, an interrupt is applied, firstly, to determine whether there open position lens barrier 4, the first
Switch S ₁ is whether the check ON is performed (step
111). If, when the first switch S ₁ is being OFF, the photographic lens barrel 1 is not required for narrowing Repetitive since been placed in Kukomi completion position as shown in Figure 3. Therefore, in this case, the transfer routine is immediately terminated, and a standby state is entered, or the lens barrier 4 is opened to shift to another process such as feeding of a lens or rewinding of a film.

In step 111, if the first switch S ₁ is ON,
The process immediately proceeds to step 112, and the photographing lens barrel 1 is moved to the first position.
As shown in the figure, it is checked whether the third switch is ON to determine whether or not it is at the feeding position. The third switch S ₃ is If ON at step 112, central processing unit (CPU) 20, the process proceeds to step 113, so that the drive motor 21 is reversed via the Kukomi motor driving circuit 21 of the photographic lens barrel 1 And the retraction of the taking lens barrel 1 is started. Its narrowing Repetitive Step S114 of the second switch S ₂
Continued until ON is determined.

When narrowing Repetitive photographing lens barrel 1 is started immediately flange portion 1a of the photographic lens barrel 1 and the third switch S ₃ of the movable contact piece 14
The third switch S ₃ is engaged with a being released turned OFF.

Further, the retraction proceeds, and the flange portion 1a becomes the protrusion of the locking pin 10.
When the locking pin 10 abuts on the lens barrier 4, the locking pin 10 is displaced downward (in the direction opposite to the direction of the arrow A), and when the tip of the taking lens barrel 1 crosses the path of the lens barrier 4,
Unlock the lock. Therefore, the lens barrier 4, by the biasing force of the torsion coil spring 9, travels from the open position of FIG. 2 to the closed position of FIG. 4, the first switch S ₁ subsequently is
Can be switched to the OFF state. Furthermore, a photographing lens barrel 1
When retracted slightly, the second switch S ₂ is turned ON (step 114), narrowing Repetitive photographing lens is stopped (step 115), to another processing such rewinding or film enters the standby state Transition.

In step 112, the third switch S ₃ is if OFF,
Proceeds to step 116, the second switch S ₂ whether ON is checked. In this step 116, the second switch S
_{If 2} is OFF, it is determined that the taking lens barrel 1 is at the intermediate position, and the process proceeds to step 113 to start the retraction.
Also if the second switch S ₂ is in the ON state, immediately proceeds to another processing rewinding, etc. of the film.

Figure 9 is a first switch S ₁ and the actuating pin 11 for actuating it in the first view to delete the projection 12, and add the lens barrier holding device, cross-sectional view of a camera showing a second embodiment of the present invention FIG. 10 is a partially cutaway front view of the embodiment camera shown in FIG. Parts having the same functions as those in the embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals as those in FIGS. 1 and 2, and detailed description of the configuration is omitted.

9 and 10, a hooking projection 31 is provided on the back surface of the lens barrier 4, and a hooking pin 32 engageable with the hooking projection 31 passes through the front wall of the camera body 3. It is provided so as to be vertically displaceable in FIG. The lower end of the locking pin 32 is connected to one arm of a rotating lever 34 supported on a shaft 33 implanted in the camera body 3, and the other arm end 34a of the rotating lever 34 is It is engaged with the flange 1a of the cylinder 1. The rotating lever 34 is biased by a tension coil spring 35 so as to be able to rotate clockwise about the shaft 33.

FIG. 9 and FIG. 10 show a state in which the taking lens barrel 1 is placed at the extension completion position protruding from the camera body 3, and the lens barrier 4 is locked by the locking pin 10 in the open position. ing. In this state, the locking pin 32
The upper surface of the locking pin 32 engageable with the locking projection 31 provided on the back surface of the lens barrier 4 is located at a position where the locking pin 32 is retracted from the surface of the camera body 3.

When the photographic lens barrel 1 by a reverse rotation of the drive motor 2 is retracted downward in FIG. 9, the third switch S ₃ is turned OFF
Becomes Further, the arm end 34a of the rotating lever 34 tries to rotate clockwise following the flange 1a of the taking lens barrel 1, but the upper end surface of the latching pin 32 and the lower end of the latching projection 31 The contact prevents the rotation. When the photographing lens barrel 1 is further retracted, the flange 1a comes into contact with the projection 10a of the locking pin 10 and displaces the locking pin 10 downward. This allows
The engagement between the locking pin 10 and the engagement hole 4a of the lens barrier 4 is released, and the lens barrier 4 travels rightward in FIG. The window 16 and the distance measurement windows 17a, 17b stop at the closed position to cover. When the lens barrier 4 moves to the right, the retaining pin 32 is displaced upward by the urging force of the extension coil spring 35, and enters the orbit on which the retaining projection 31 moves as shown in FIG. Furthermore, when displaced downward in the photographic lens barrel 1 slightly, the second switch S ₂ is turned OFF, the drive motor 2 is stopped, the photographic lens barrel 1 is stopped at KuRyo completion position in the camera body 3 .

The lens barrier 4 in the closed position is moved to the left as shown in FIG. 11 and slightly displaced to the left beyond the open position shown in FIG. When the upper end surface of the retaining pin 32 is exceeded, the retaining pin 32 projects upward by the urging force of the extension coil spring 35 as shown in FIG. This temporarily prevents the lens barrier 4 from moving rightward due to the urging force of the torsion coil spring 9. The twelfth
As shown in the figure, when the latching projection 31 is latched by the latching pin 32, the lens barrier 4 resists the urging force of the torsion coil spring 9 at a position slightly leftward from the open position shown in FIG. It is hung. When the lens barrier 4 is forcibly displaced rightward in FIG. 12, the locking pin 35 is pushed down by the right inclined surface formed on the locking projection 31, so that the locking projection 31 is Get over stop pin 32. Therefore,
Even if the lens barrier 4 is once moved to the open position, when the taking lens barrel 1 is at the retracted position as shown in FIG. 12, the lens barrier 4 can be returned to the closed position again. .

Photographic lens barrel 1 and fed upward in FIG. 12, locking pin 10 is displaced upward by the restoring force of the second switch S ₂ of the movable contact piece 13a, the upper end of the lens barrier 4 It is inserted into the engagement hole 4a. Subsequently, the second switch S ₂
When turned off and the shooting lens barrel 1 is further extended, the flange portion 1a comes into contact with the arm end 34a of the rotating lever 34 to rotate the rotating lever 34 counterclockwise. As a result, the locking pin 32 is displaced downward to release the locking of the locking projection 31, so that the lens barrier 4 is slightly displaced rightward by the urging force of the torsion coil spring 9, and the locking pin It is locked by 10 and is prevented from moving rightward in the open position shown in FIG. At the same time the third movable contact piece 14a of the switch S ₃ is engaged with the flange portion 1a of the photographic lens barrel 1, the third switch S ₃ is closed as shown in FIG. 9, the drive motor 2 is stopped I do.

Unwinding a such photographing lens barrel 1 of the drive motor 2 for Kukomi operation is driven and controlled by a signal from the fourth switch S ₄ which is opened and closed by the push button 15. No.
FIG. 13 is a circuit diagram for controlling the drive motor 2 in the second embodiment (FIG. 9). The output signal of the switch S ₂ to S ₄ are input to a central processing unit (CPU) 40, a motor control circuit (MD) 21 is the drive motor 2 in accordance with signals from the central processing unit 40, is stopped and normal and reverse rotation .

FIG. 14 is a flow chart of the feeding-out and feeding-in operation. Hereinafter, in accordance with the flow chart of FIG. 14, the central processing unit (CP
U) The operation of 40 will be described.

By the pressing operation of the push button 15, the fourth switch S ₄ is ON
Then, the central processing unit (CPU) 40 first determines whether the photographing lens barrel 1 is in the extended position as shown in FIG. 12 or in the extended position as shown in FIG. It is determined by the input signal from S ₂ and the third switch S ₃ (step 20
1). If the second switch S ₂ is ON, the photographing lens barrel 1
Is determined to be at the retraction position, and the routine proceeds to step 202, where the drive motor 2 is rotated forward to start the retraction. By the restoring force of the feeding of the photographic lens barrel 1 is started locking pin 10 and the second switch S ₂ of the movable contact piece 13a, moving to follow the photographic lens barrel 1 upward in FIG. 12 in I do. In this case, when the lens barrier 4 as shown in FIG. 11 is placed in the closed position, abuts the upper end of the locking pin 10 before the second switch S ₂ is opened within the back surface of the lens barrier 4 The upward displacement of the locking pin 10 is prevented. Subsequently, the upper end of the taking lens barrel 1 comes into contact with the back surface of the lens barrier 4 and is prevented from moving upward, and there is a danger that the load on the drive motor 2 will increase significantly. Therefore, when a predetermined time elapses from the start of feeding, the switch shown in FIG.
S ₂ is the determination of whether the OFF is made (step 203).
In this case, if the second switch S ₂ is OFF, the lens barrier 4
Is determined to be in the open position as shown in FIG. 12 and the latching projection 31 is latched by the latching pin 32, and the feeding operation is continued as it is. Also, this second switch
The S ₂ is OFF state, the upper end of the locking pin 10 is inserted into the locking hole 4a of the lens barrier 4. Its feeding operation of the photographic lens barrel 1 is continued until the third switch S ₃ turned ON. Meanwhile, the flange 1a of the taking lens barrel 1 comes into contact with the arm 34a of the rotating lever 34, and displaces the locking pin 32 downward. As a result, the locking of the locking projection 31 by the locking pin 32 is released, but the engagement hole 4a of the lens barrier 4 is
, The movement to the right is prevented, and the state shown in FIG. 9 is obtained. The third switch S ₃ is turned ON at step 204, the central processing unit 40 immediately stops the driving motor 2,
The extension of the taking lens barrel 1 is stopped (step 20).
5), a series of feeding operations ends.

In step 203, if the second switch S ₂ even after the lapse of a predetermined time from the supply start is not turned OFF immediately proceeds to step 205, to stop the feeding operation. In this case, as shown in FIG. 12, if the lens barrier 4 is moved to the open position, the engagement between the locking projection 31 and the locking pin 32 is confirmed, and then the push button 15 is pressed again, Step 20
The feeding operation is continued again through steps 1 to 203.

Next, the third case switch S ₃ is turned ON at step 201, narrowing Repetitive is started (step 206), the Repetitive narrowing operation is continued until the second switch S ₂ is ON (step 207). Just before the second switch S ₂ is turns ON, the is disengaged from the locking pin 10 and the engagement hole 4a, the lens barrier 4
Moves to the right in FIG. 9 by the biasing force of the torsion coil spring 9, and stops at the closed position as shown in FIG. Subsequently renormalized taking lens barrel 1 slightly, the second switch S ₂ is turned ON, Kukomi is stopped (Step 20
8) End a series of repetitive operations.

In the embodiment shown in FIGS. 1 and 9, if the moving speed of the lens barrier 1 to the closed position is too high, an appropriate governor may be provided to reduce the moving speed.

〔The invention's effect〕

As described above, according to the present invention, when the photographic lens barrel is extended, the locking means locks the lens barrier at the open position, and when the photographic lens barrel is retracted, the lock is released. With this configuration, the lens barrier is prevented from moving during the retracting operation as well as while the taking lens barrel is in the extended position, so that the taking lens barrel is not damaged by the lens barrier. There is no. Further, there is an advantage that a malfunction such as closing of the lens barrier due to external force during photographing can be prevented. Further, if the lens barrier is moved in the closing direction by the urging force of the spring as in the embodiment, the lens barrier is not forgotten to be closed.

Further, if the photographic lens barrel is automatically extended when the lens barrier is opened as in the first embodiment, there is an advantage that a malfunction such as taking an image without extending the photographic lens barrel can be prevented. Yes.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a camera showing a first embodiment of the present invention, FIG. 2 is a front view of the embodiment camera shown in FIG.
FIG. 4 is a sectional view showing a state in which the lens barrier of the camera in FIG. 1 is closed, FIG. 4 is a front view showing a state in which the lens barrier of the embodiment camera in FIG. 1 is closed, and FIG. FIG. 6 is a cross-sectional view of the embodiment camera showing a state immediately after the lens barrier shown in the figure has been moved to the open position. FIG. 6 is a motor control circuit diagram for driving the taking lens barrel in the embodiment camera of FIG. FIG. 8 and FIG. 8 are flow charts for explaining the operation of the central processing unit in FIG. 6, FIG. 7 is a diagram showing a feeding routine, FIG. 8 is a diagram showing a loading routine, and FIG. FIG. 10 is a front sectional view of a camera showing a second embodiment of the present invention. FIG. 10 is a front view of the embodiment camera shown in FIG. 9, and FIG. 11 is a state where a lens barrier in the camera of FIG. 9 is closed. FIG. 12 shows a state immediately after the lens barrier shown in FIG. 11 is moved to the open position. FIG. 13 is a motor control circuit diagram for controlling the motor for driving the photographing lens barrel in the camera of the second embodiment shown in FIG. 9, and FIG. 14 shows the operation of the central processing unit in FIG. It is a flow chart for explaining.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-147926 (JP, A) JP-A-60-91338 (JP, A) JP-A-60-78432 (JP, A) 145345 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) G03B 11/04

Claims (3)

(57) [Claims] 1. A camera in which the entire photographing lens barrel located at a protruding position protruding from the front surface of a camera body can be moved to a predetermined retracting position along an optical axis and stored when not in use. Between a closed position covering the entire front surface and a retracted position retracted from the entire front surface of the taking lens barrel, can be moved substantially orthogonal to the optical axis in response to a manual operation from outside the camera, A lens barrier having an arrangement relationship capable of interfering with the photographic lens barrel when the photographic lens barrel is at the extended position; a locking member provided on the back surface of the lens barrier; and Following the dispensing operation, including a locking member having a distal end that engages with the locking member, and when the photographing lens barrel is at the dispensing position, interlocked with movement to the dispensing position, The locking part By engaging the distal end of the lens barrier with the locking member, movement of the lens barrier to the closed position according to the manual operation is prevented, and the movement of the photographic lens barrel and the lens barrier is prevented. Locking means for preventing interference; and when the photographing lens barrel moves to the retracted position, interlocking with the movement, retracts the distal end of the locking member from the locking member so that the lens is retracted. A camera with a lens barrier, comprising: releasing means for releasing the barrier from moving. 2. The lens barrier (4) is movably biased toward the closed position by a spring (9), and the locking means (4a, 10) resists the bias of the spring (9). The camera with a lens barrier according to claim 1, wherein the camera is configured to prevent the movement of the lens barrier (4). 3. The release means includes a projection (10a) provided at one end of the locking pin (10) and a flange (1a) protruding on the outer periphery of the taking lens barrel (1). The camera with a lens barrier according to claim 1, wherein: