JP3268121B2 - Camera with lens barrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera with a lens barrier, and more particularly to a camera with a lens barrier provided with a lens barrier for covering and protecting a photographic lens.

[0002]

2. Description of the Related Art A lens barrier provided in a camera moves between a closed position covering a taking lens and an open position retracted from the taking lens. The lock section of the lens barrier and the shutter button are linked, and the shutter button is locked by the lock section when the lens barrier is at the closed position, and the shutter button is unlocked when the lens barrier is at the open position. You. When taking a picture with the lens barrier opened, the amount of depression of the shutter button is regulated by the regulating section.

[0003]

However, the conventional camera is provided with a locking portion for locking the shutter button and a regulating portion for regulating the amount of depression of the shutter button, so that the number of parts is increased and the cost is reduced. There is a problem that cannot be achieved. The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a camera with a lens barrier that can reduce the number of parts and reduce costs.

[0004]

In order to achieve the above object, the present invention has a lens barrier that slides between a closed position covering a taking lens and an open position exposing the taking lens, In a camera with a lens barrier in which the shutter button can be pressed down at the open position of the lens barrier and the shutter button is locked at positions other than the open position of the lens barrier and the shutter button cannot be pressed down,
Engage with the lens barrier and move the lens barrier
A slide member that moves together with the lens barrier , and a lock portion that disables the shutter button from being depressed and a regulating portion that regulates the amount by which the shutter button is depressed are integrally formed on the slide member. When the shutter button is located at a position other than the open position, the shutter button cannot be pressed down by the lock section, and when the lens barrier is located at the open position, the lock section retracts to push down the shutter button. It is characterized in that it is made possible and the amount of depression of the shutter button is regulated by the regulating section.

[0005]

According to the present invention, the lock portion for locking the shutter button and the restricting portion for restricting the amount of depression of the shutter button are formed integrally with the slide member. The slide member moves together with the lens barrier, and when the lens barrier is located at a position other than the open position, the locking portion cannot depress the shutter button. Further, when the lens barrier is located at the open position, the lock section retracts to allow the shutter button to be pressed down, and the regulating section regulates the amount by which the shutter button is pressed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A camera with a lens barrier according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing the entirety of a camera with a lens barrier according to the present invention, and FIG. 2 is an enlarged view of a main part of a camera with a lens barrier according to the present invention. As shown in FIG. 2, a camera 10 with a lens barrier includes a camera case 12 and a lens barrier 1.
4, a slide member 16 and a shutter button member 18 are provided. As shown in FIG. 1, the camera case 12 is formed in a substantially rectangular shape, and a photographing lens 20 is provided at the center of the front wall. A lens barrier 14 is slidably supported on the front wall of the camera case 12. Engagement claws (not shown) are formed at the upper end and lower end of the lens barrier 14, and these engagement claws are slidably engaged with guide grooves (not shown) of the camera case 12. The guide groove of the camera case 12 extends in parallel to the direction of arrow AB in FIG.

A pin 1 is provided on the back of the lens barrier 14.
4A is formed, and the pin 14A is slidably fitted into the slit 12A. Slit 12A is camera case 1
2 is formed on the front wall in parallel with the guide groove. Thus, the lens barrier 14 is supported slidably in arrow A-B direction in the front wall of the camera case 12, the moving amount in the arrow A-B direction of the lens barrier 14 in the slit 12A in the length L ₁ Be regulated. Then, the lens barrier 14 when the pin 14A is positioned at the left end p ₁ of the slit 12A is positioned in the closed position covering the taking lens 20, the lens barrier 14 when the pin 14A is positioned at the right end p ₂ of the slit 12A is It is positioned at an open position where the taking lens 20 is exposed.

As shown in FIGS. 2, 3 and 4, projections 14B and 14C are formed on the back surface of the lens barrier 14. On the other hand, as shown in FIGS. 1, 5, and 6, a spring portion 22 is formed on the front wall portion of the camera case 12, and the spring portion 22 is formed.
A projection 22A is formed at the tip of the lens.
reference). Then, when the lens barrier 14 is positioned at the closed position as shown in FIG.
The projection 14B abuts on the right side of A, and the lens barrier 14 is locked at the closed position. In this case, the pin 14A of FIG 2 is positioned at the left end portion p ₁ of the slit 12A.

When the lens barrier 14 is moved in the direction of arrow A from the closed position to open the taking lens 20, the projection 22A is pressed by the projection 14B, and the spring portion 22 is bent inside the camera case 12 (FIG. 3). reference). Spring part 22
Is bent, the projection 14B moves in the direction of arrow A over the projection 22A. When the lens barrier 14 reaches the open position, the projection 14C comes into contact with the projection 22A,
The protrusion 22A is pressed by the protrusion 14C. Thereby, the spring portion 22 is bent inside the camera case 12, the projection 14C rides over the projection 22A and abuts on the left side of the projection 22A, and the lens barrier 14 is locked in the open position (FIG. 4).
reference). In this case, the pin 14A of FIG.
Located in the right end portion p _2.

The pin 14A is movably fitted into the operating slit 16A as shown in FIGS.
The operation slit 16 </ b> A is formed in the slide member 16. The slide member 16 is disposed inside the front wall of the camera case 12 so as to face the lens barrier 14, and the slide member 16 below the operating slit 16A has a pair of elongated holes 16B, 16B on the same straight line. , Are formed in parallel with the operating slit 16A. A pair of long holes 16B, 1
Guide pins 12B, 12B are fitted into 6B, respectively, and the guide pins 12B, 12B protrude inside the front wall of the camera case 12. Thereby, the slide member 16 is supported by the camera case 12 so as to be movable in the direction of the arrow AB within the range of the length of the elongated hole 16B.

Further, the slide member 16 has a left end.
The right end of the coil spring 26 is attached to the coil spring 26.
Of the camera case 12 through the pin 12C.
It is attached. Therefore, the slide member 16 is
The guide pin 12B is urged in the direction of arrow B by the
2B abuts on the right ends of the long holes 16B, 16B, respectively.
(See FIG. 5). The operation slit 16A is a slit.
Dimension L shorter than 12A _TwoIs set to In addition,
A regulating portion 16C is formed at the right end of the ride member 16,
A lock portion 16D is formed above the regulating portion 16C.
You.

The regulating portion 16C is formed so that a shutter button portion 28 described later can be fitted therein. Further, the lower end portion of the fitted shutter button portion 28 abuts on the bottom of the regulating portion 16C, and the pushing amount of the shutter button portion 28 is reduced. Is regulated. The lock portion 16D is formed such that the projection 28B of the shutter button portion 28 can be mounted thereon. When the projection 28B of the shutter button portion 28 is mounted on the lock portion 16D, the shutter button portion 2
8 is held in the locked state. in this way,
The restricting portion 16C and the lock portion 16D are formed integrally.

The sliding member 16 is a coil spring 2
6, the guide pins 12B, 12B are urged in the direction of arrow B.
If B is in contact with the right end portion of each slot 16B, 16B, the left end portion of the actuating slit 16A is located outside the left end p ₁ of the slit 12A, the right end portion of the actuating slit 16A at the right end of the slit 12A located inside parts p _2.
When positioning the lens barrier 14 in this state to the closed position, the pin 14A is not in contact with the left end portion of the actuating slit 16A in contact with the left end p ₁ of the slit 12A. In this case, the lock portion 16D is connected to the projection 28 of the shutter button portion 28.
B, the lock portion 16D and the projection 28B of the shutter button portion 28 come into contact with each other (see FIG. 5).

On the other hand, the lens barrier 14 is
When the pin 14A moves in the direction of the open position, the pin 14A moves together with the lens barrier 14 into the slit 12A and the operating slit 16A.
In the direction of arrow A. In this case, the slit 12A
Since the length L ₁ is set longer than the length L ₂ of the working slit 16, the lens barrier 14 reaches the vicinity of the open position, the pin 14A is in contact with the right end portion of the actuating slit 16A, pin 14A Moves the slide member 16 in the direction of arrow A against the urging force of the coil spring 26.

As a result, the lock portion 16D moves in the direction of arrow A and retreats from the projection 28B of the shutter button portion 28. Then, the restricting portion 16C is connected to the shutter button portion 28.
6, the shutter button 28 can be pushed down into the regulating portion 16C by a predetermined amount (FIG. 6).
reference). As described above, the lens barrier 14 and the regulating portion 16
C and the slide member 1 integrally formed with the lock portion 16D
6 is formed as a separate member, and the amount of movement of the slide member 16 is controlled by the position where the regulating portion 16C is positioned below the shutter button portion 28 and the lock portion 16D is controlled by the shutter button portion 2.
8 is set to a minimum range between the position positioned below and the position positioned below. Further, since the shutter button 28 can be pushed down into the regulating portion 16C only when the lens barrier 14 is completely opened, it is possible to prevent erroneous photographing and the like when the lens barrier 14 is half-open.

As shown in FIG. 2, the shutter button member 18 is formed of an elastic member such as resin,
And a shutter button 28, and pins 27A, 27A protruding from both sides of the lever 27 are formed coaxially. The pins 27A, 27A are rotatably supported by the upper wall of the camera case 12, and the end 27B of the lever 27 is provided.
Is in contact with the upper wall of the camera case 12 (see FIGS. 5 and 6). A cylindrical shutter button 28 is formed integrally with the right end of the lever 27. The shutter button 28 is fitted into an opening 12D formed in the upper wall of the camera case 12, and a flange 28A is formed on the outer periphery of the lower end of the shutter button 28 (see FIG. 2).

The flange 28A has a larger diameter than the opening 12D, and the flange 28A has a camera case 1 having the opening 12D.
2 abuts against the inner wall surface. As a result, the shutter button 28 is positioned at a predetermined position, and the shutter button 28
Is substantially flush with the surface of the camera case 12. In this case, when the lens barrier 14 is located at the closed position covering the taking lens 20, the protrusion 28 of the shutter button 28
B comes into contact with the lock portion 16D (see FIG. 5) to lock the shutter button portion 28 from being pressed down.

On the other hand, the lens barrier 14 is
When the lock portion 16D is located at the open position where the shutter button portion 28 is exposed, the lock portion 16D retracts from below the protrusion 28B of the shutter button portion 28, and the regulating portion 16C is positioned below the protrusion 28B of the shutter button portion 28. Accordingly, the lock of the shutter button 28 is released, and when the shutter button 28 is pressed,
The lever portion 27 is elastically deformed, so that the shutter button portion 28 can be pushed down into the regulating portion 16C by a predetermined amount (see FIG. 6). When the pressing force of the shutter button portion 28 is released, the elastically deformed lever portion 27 returns to the original state, and the shutter button portion 28 is located at a position where its surface is substantially flush with the surface of the camera case 12. .

In FIG. 1, reference numeral 30 denotes a finder, 32 denotes a flash, and 34 denotes a flash operation button. The operation of the camera with the lens barrier according to the present invention configured as described above will be described. The lens barrier 14 is the taking lens 20
, The slide member 16 is urged in the direction of arrow B by the coil spring 26, and the guide pins 12B, 12B abut against the right ends of the long holes 16B, 16B, respectively. Thereby, the lock portion 16D is located below the protrusion 28B of the shutter button portion 28, and the lock portion 16D and the protrusion 28B of the shutter button portion 28 come into contact with each other (see FIG. 5). Therefore, the shutter button 28 is locked, and the pressing of the shutter button 28 is prevented.

Next, the lens barrier 14 is moved to the photographing lens 20.
When moving from the closed position to the open position covering the
A moves together with the lens barrier 14 in the slit 12A and the operation slit 16A in the direction of arrow A. in this case,
The length L ₁ of the slit 12A is set longer than the length L ₂ of the actuating slit 16, the lens barrier 14 reaches the vicinity of the open position, the pin 14A is in contact with the right end portion of the actuating slit 16A, Pin 14A is a coil spring 2
The slide member 16 is moved in the direction of arrow A against the urging force of No. 6.

As a result, the lock portion 16D moves in the direction of arrow A and retreats from the projection 28B of the shutter button portion 28, and the regulating portion 16C moves to the projection 28B of the shutter button portion 28.
Located below. Therefore, the lock of the shutter button portion 28 is released. Therefore, the shutter button portion 28 is pressed to be pushed down into the regulating portion 16C by a predetermined amount (see FIG. 6). As described above, the lens barrier 14 and the regulating portion 16C
And slide member 16 integrally formed with lock portion 16D
Are formed as separate members, and the moving amount of the slide member 16 is
The minimum range is set between the position where the restricting portion 16C is positioned below the shutter button portion 28 and the position where the lock portion 16D is positioned below the shutter button portion 28. Further, since the shutter button 28 can be pushed down into the regulating portion 16C only when the lens barrier 14 is completely opened, it is possible to prevent erroneous photographing and the like when the lens barrier 14 is half-open.

[0022]

As described above, according to the camera with the lens barrier according to the present invention, the lock portion for locking the shutter button and the restricting portion for restricting the depression amount of the shutter button are formed integrally with the slide member. The slide member moves together with the lens barrier, and when the lens barrier is located at a position other than the open position, the locking portion cannot depress the shutter button. Further, when the lens barrier is located at the open position, the lock section retracts to allow the shutter button to be pressed down, and the regulating section regulates the amount by which the shutter button is pressed.

As described above, since the lock portion for locking the shutter button and the restricting portion for restricting the amount of depression of the shutter button are formed integrally, the number of parts can be reduced and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire camera with a lens barrier according to the present invention.

FIG. 2 is an enlarged view of a main part showing a main part of the camera with a lens barrier according to the present invention.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 1;
Explanatory drawing explaining the state in which the lens barrier is closed

FIG. 4 is an explanatory diagram illustrating a state where a lens barrier is opened from the state of FIG. 3;

FIG. 5 is an explanatory diagram illustrating the operation of the camera with a lens barrier according to the present invention.

FIG. 6 is an explanatory diagram illustrating the operation of the camera with a lens barrier according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Camera with lens barrier 12 ... Camera case 14 ... Lens barrier 16 ... Slide member 16C ... Restriction part 16D ... Lock part 18 ... Shutter button member 20 ... Photographing lens

Claims (1)

(57) [Claims] A lens barrier that slides between a closed position that covers the taking lens and an open position that exposes the taking lens, wherein the shutter button can be pressed down at the open position of the lens barrier and the lens can be depressed. In a camera with a lens barrier that locks a shutter button at a position other than the opening position of the barrier and makes it impossible to depress the shutter button , the lens barrier is moved by engaging with the lens barrier.
A slide member that moves together with the lens barrier is provided, and the slide member is integrally formed with a lock portion that disables the shutter button from being depressed and a regulating portion that regulates the amount of depression of the shutter button. When the shutter button is located at a position other than the open position, the shutter button cannot be pressed down by the lock section, and when the lens barrier is located at the open position, the lock section retracts to push down the shutter button. A camera with a lens barrier, wherein the camera is made possible and the amount of depression of the shutter button is regulated by the regulating part.