JPH10228051A - Camera with built-in stroboscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a camera compact and excellent in strength and to move a stroboscope to a non-using position and a using position by providing a cam mechanism between one end of either of a pair of 2nd levers cranked for controlling the turning position of the other of the 2nd levers and a camera body. SOLUTION: When a 1st lever 30 is turned to an upper turning position, the position of the elevating shaft 31 of a strobe light emission part 90 is shifted in arc shape toward the upper part of the camera. Simultaneously, the 2nd lever 35 is shifted obliquely upward while a pin to be supported 96 is sliding in a supporting long hole 36 with the above action. At such a time, one side of the light emission part 90 is supported by a cam link mechanism 10 having a cam plate 37, so that a 3rd lever and its fixed shaft need not be provided on a surface positioned inside the camera body 11 out of both side surfaces of the supporting body 42. Namely, a stroboscope supporting means which gives specified height to the light emission part 90 at the using position is constituted to be compact by reducing the number of parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera having a built-in flash which can be moved between a non-use position inside a camera and a use position exposed to the outside.

[0002]

2. Description of the Related Art Some built-in flashes of a camera are stored in a camera body when not in use and are exposed to the outside when in use, for reasons of design and camera construction. Among such stowable strobes, for example, when the stowage lock is released by an external operation, the strobe is popped up to a use position by a spring force to be in a light emitting state. In order to support the strobe movably in this way, a rotating shaft is provided on the strobe main body, this is pivotally supported on the camera body, and the pop-up operation is performed by rotating the strobe main body around this rotating shaft. There is a configuration. However, if the strobe body is provided with a rotating shaft,
The projection amount of the strobe at the time of pop-up is limited to the height of the strobe main body. If the height of the strobe is not sufficient, the red-eye effect due to the strobe light may occur, or the strobe light may be shaken by the lens barrel when the zoom lens zooms. Therefore, the strobe main body is often supported on the camera body via a link mechanism, thereby increasing the use position of the strobe main body. In this type of link mechanism, it is necessary to provide a fixed number of fixed shafts on (inside) the camera body, which increases the number of parts and restricts the degree of freedom in design. In addition, at the time of pop-up, the strobe light emitting surface must be securely held at a predetermined use height and use posture, but the link mechanism is disadvantageous in terms of strength because two or more axes move in a complex manner. is there.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a camera with a built-in strobe which movably supports a strobe between a non-use position inside the camera and a use position exposed to the outside by a support structure which is compact, has a small number of parts, and has excellent strength. The purpose is to gain.

[0004]

SUMMARY OF THE INVENTION The present invention aims at reducing the size and simplification of the structure while taking advantage of the link mechanism as a support means for a movable strobe built in a camera. In a flash built-in camera having a strobe light emitting portion movable to a use position protruding from the camera body, a fixed shaft provided on the camera body and a strobe light emitting housing provided in parallel with the body side fixed axis. A pair of first levers respectively positioned on both sides of the strobe light-emitting unit housing, one end and the other end of which are pivotally connected to the fixed shaft and the elevating shaft, respectively; the strobe light-emitting unit housing A pair of crank-shaped second levers respectively located on one side and the other side and pivotally mounted on a pair of first levers; one end of the pair of crank-shaped second levers and a strobe light emitting unit housing Interlocking mechanisms respectively provided between the first lever and the side surfaces of the first and second levers, for rotating the strobe light-emitting unit housing about the elevating shaft when the second crank-shaped lever swings on the first lever; Controls the rotation position of one of the pair of crank-shaped second levers when the rotation is performed about the fixed shaft, and pivots between the other end of the one crank-shaped second lever and the camera body. The third lever worn;
And the other end of the one crank-shaped second lever and a camera body for controlling the other rotation position of the pair of crank-shaped second levers when the first lever rotates about the fixed shaft. And a cam mechanism provided between the camera and the camera. By incorporating the cam mechanism into the support means on one side of the strobe light emitting unit housing, the number of parts can be reduced and the structure can be simplified. In addition, if a cam mechanism is provided on both sides of the strobe light emitting unit housing, an adjusting step of adjusting the cam positions on both sides is necessary. However, in the configuration of the present invention, the cam mechanism is provided only on one side of the strobe light emitting unit housing. Since no adjustment process is required, assembly is easy.

The cam mechanism includes a follower pin provided at the other end of the one crank-shaped second lever, and a cam plate fixed to a camera body having a cam groove for engaging the follower pin. be able to. This cam plate has a role as a strength member constituting a fixed joint of the link mechanism. The cam plate is desirably provided on a side surface located inside the camera body among both side surfaces of the strobe light emitting unit housing. When the cam plate is configured as a strength member of the camera body, the inner position is more advantageous in strength.

In the case of a camera having a photographing lens barrel that can be moved between a storage position and a photographing position, it is desirable that the driving force of the strobe light emitting unit be obtained from the moving force of the photographing lens barrel. For example, one of the pair of first levers can be configured to be rotated about the fixed shaft by a moving force between the storage position of the photographing lens barrel and the photographing position. Preferably, the pair of first levers are connected to each other so as to move integrally.

The interlocking mechanism includes a pin protruding from a side surface of the strobe light emitting unit housing and an elongated hole formed at the one end of the crank-shaped second lever, into which the pin is slidably fitted. can do. This relationship may be reversed. That is, the elongated hole may be formed on the side surface of the strobe light emitting unit housing, and the pin may be protruded from the end of the crank-shaped second lever.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of a camera with a built-in strobe to which the present invention is applied. This camera has a zoom lens barrel 21 at the front center of the camera body 11. The zoom lens barrel 21 includes first and second lens barrels 22 and 23, and is movable between a retracted position in the optical axis direction and a front photographable position (zoom range). The retractable type is housed in the camera body 11. Therefore, the driving force of the zoom lens barrel 21 in the optical axis direction can be used. The zoom lens barrel 21 is driven in the optical axis direction by a zoom motor provided inside the camera body 11. Camera body 11
Is a fixed cover 13, a sub cover 14, and a slide cover 15 for protecting the housed zoom lens barrel 21 in the front.
It has. The fixed cover 13 is fixed to the camera body 11, and the slide cover 15 is supported along a slide rail 16 so as to be able to advance and retreat in the longitudinal direction of the camera body 11. The sub cover 14 is linked to the slide cover 15, and the slide cover 15 is
When the slide cover 15 is in the open state where the slide cover 15 is separated from the fixed cover 13, the slide cover 15 is closed when the slide cover 15 is separated from the fixed cover 13. In the same direction as above, and completely move to the back surface of the slide cover 15 to expose the zoom lens barrel 21 (see FIG. 2).

The camera is provided with a main switch that operates just before the slide cover 15 reaches the fully opened position from the closed position and when the slide cover 15 is slightly moved from the fully opened position to the closed position. The main switch is turned on immediately before the slide cover 15 reaches the fully open position from the closed position, and is turned off when the slide cover 15 is slightly moved from the fully open position to the closed position. When the main switch is turned on, the zoom motor starts in the extending direction, and the lens barrels 22 and 23 are driven to the photographable positions. On the other hand, when the main switch is turned off, the zoom motor starts in the storage direction, and the lens barrels 22 and 23 are retracted to the storage position. Since the focal length of the zoom lens barrel 21 can be continuously changed, the photographable position is such that when the main switch is turned on, the lens barrels 22 and 23 are initially moved forward from the storage position to the front of the optical axis. The zoom range is from the position (wide position) to the position where the lens barrels 22 and 23 are extended to the maximum (tele position).

On the front left side of the camera body 11, a cylindrical grip portion 12 is formed.
A large mode dial 17 and a release button 19 on the shaft of the mode dial 17 are provided on the upper end face of the camera. The mode dial 17 is a click stop type rotary dial, and depending on the click stop position, an automatic exposure mode, a pre-flash mode for automatic exposure and red-eye reduction, a slow shutter mode, a bulb and forced strobe flash mode, a bulb mode, and a flash forcible flash. The flash mode and the flash stop mode can be selected alternatively.

A pop-up strobe 25 is provided on the upper surface of the camera body 11. The pop-up strobe 25 includes a strobe light emitting section 90 and a gear link mechanism that movably supports the strobe light emitting section 90. The pop-up strobe 25 performs a pop-up operation to a use position and a storage operation to a non-use position by using the moving force of the zoom lens barrel 21 in the optical axis direction. Hereinafter, the details will be described.

FIG . 5 to FIG. 9 show the pop-up strobe 25 inside the camera body 11. The strobe light emitting unit 90 is a known light emitting device in which a xenon tube (not shown) and a reflection plate are arranged inside, and a strobe lens 91 is provided on the front surface.
, And a pair of side plates 93a and 93b are provided on both sides of the strobe lens 91. A pair of overhangs 94 in which electrodes connected to both ends of the xenon tube are arranged are formed on the side plates 93a and 93b.
The upper surface is a flat top plate 92.

The camera body 11 is provided with a strobe storage section 41 which can store the strobe light emitting section 90. The strobe storage section 41 is provided with a box-shaped strobe support 42 fixed adjacent to the front wall 11 a in the camera body 11.
And a cylindrical wall 43 at the rear of the space, and an upper portion thereof is an opening 41a facing the outside.

A side plate 93a located on the outer side of the camera body 11 on both sides of the strobe light emitting section 90 has an elevating shaft 51 projecting directly below the strobe lens 91.
One end of a first lever 50 is pivotally attached to the elevating shaft 51. At a predetermined position of the strobe support 42, a fixed shaft 52 parallel to the elevating shaft 51 of the strobe light emitting unit 90 is provided,
The other end of the first lever 50 is pivotally attached to the fixed shaft 52. The first lever 50 is rotatable about a fixed shaft 52 between a lower rotation position shown in FIG. 6 and an upper rotation position shown in FIG. The position of the end changes on an arc-shaped trajectory. A supported pin 95 protrudes from the side plate 93a in the vicinity of the elevating shaft 51.
The supported pin 95 is relatively slidably fitted in a supporting long hole 46 formed at one end of the second lever 45 having a crank shape. The second lever 45 has a bent portion 45b pivotally attached to the first lever 50 near the elevating shaft 51,
The first lever 50 is rotated in conjunction with the rotation. The free end 45a of the second lever 45 is connected to the free end 47a of the third lever 47 so as to be relatively rotatable. The other end of the third lever 47 is pivotally attached to a fixed shaft 48 protruding from the strobe support 42. Therefore, when the first lever 50 is rotated by the third lever 47, the second lever 4
5 is controlled.

The link mechanism 20 for supporting one side of the strobe light emitting section 90 is constituted by the first lever 50, the second lever 45, and the third lever 47 described above. The link mechanism 20 has fixed shafts 52 and 47b and a first lever 50.
When the (motor link) is swung between the lower rotation position (FIG. 6) and the upper rotation position (FIG. 8), the strobe light emitting unit 90 is moved up and down. Further, the second lever 45, the rotational position of which is controlled by the third lever 47, is driven by the second lever 45, and the supporting long hole 46
Since the supported pin 95 is moved while being relatively slid, the strobe light emitting unit 90 is given a constant rotation about the elevating shaft 51 to change the direction of the strobe lens 91 in addition to the vertical movement. Can be.

On the other hand, a side plate 93b located inside the camera body 11 on both sides of the strobe light emitting section 90 is
The elevating shaft 31 is protruded at a position symmetrical to the elevating shaft 51,
One end of a first lever 30 is pivotally attached to the elevating shaft 31. The other end of the first lever 30 is pivotally attached to a fixed shaft 32 projecting from a side surface of the strobe support 42 at a position symmetrical to the fixed shaft 52. The lifting shaft 31 and the fixed shaft 3
2 are parallel. The side plate 93b of the strobe light emitting section 90 also includes a supported pin 96 that is paired with the supported pin 95, and the supporting elongated hole 36 provided at the end of the crank-shaped second lever 35 is relatively slidable. I support it. The bent portion 35a of the second lever 35 is pivotally connected to the first lever 30 near the pivotal connection with the elevating shaft 31.

A cam plate 37 (a member shown by hatching in FIG. 5) is provided adjacent to the first lever 30 and the second lever 35. A part of the cam plate 37 is disposed in a plane substantially parallel to the side plate 93b of the strobe light emitting section 90,
An arc-shaped cam groove 38 is formed in this portion (FIGS. 7 and 9). A follower pin 39 is implanted at an end 35b of the second lever 35, and is slidably fitted in the cam groove 38. As in the case of the link mechanism 20, when the first lever 30 is rotated between the upwardly rotating position and the downwardly rotating position, the second lever 35 is interlocked therewith. At this time, the follower pin 39 slides while being guided between the positions of both ends of the cam groove 38, and the second lever 3
Reference numeral 5 denotes a controlled rotation position. That is, the cam groove 38 has the same operation as the third lever 47, and the cam plate 37
It can be considered as a fixed node of the link mechanism itself. Therefore, the support mechanism on the side plate 93b side is particularly called the cam link mechanism 10. This cam link mechanism 10 is similar to the link mechanism 20 described above.
Similarly, when the first lever 30 (motor link) is swung between the lower rotation position (FIG. 7) and the upper rotation position (FIG. 9),
The electronic flash unit 90 is moved up and down. Following the first lever 30, the second lever 35, the rotational position of which is controlled by the cam groove 38, moves while relatively sliding the supported pin 96 in the support elongated hole 36, so that the strobe light emitting section 90 Is given a constant rotation about the elevating shaft 31 so that the direction of the strobe lens 91 can be changed.

The first levers 30 and 50 are connected by a connecting portion 50a (indicated by hatching in FIG. 5), and the cam link mechanism 10 and the link mechanism 20 supporting both sides of the strobe light emitting section 90 operate integrally. Specifically, when the first levers 30 and 50 are in the ascending rotation position, the strobe light emitting unit 90 is positioned above the opening 41a of the strobe storage unit 41 in an upright state with the strobe lens 91 facing the front of the camera. When the first levers 30 and 50 are moved to the down rotation position, the strobe lens 91 is obliquely downwardly moved from the upright state into the strobe storage section 41 when the first levers 30 and 50 are moved to the down rotation position. The top plate 92 is retracted and the camera body 1
It moves to a position (non-use position: FIG. 6 and FIG. 7) that is substantially coplanar with the upper surface of 1. Since the strobe light emitting portion 90 is pivotally supported by the camera body 11 (strobe support member 42) via the first levers 30 and 50, the strobe light emitting portion 90 is more rigid than when the strobe light emitting portion 90 is directly pivoted to the camera body 11. The use position of 90 can be raised. Thereby, it is possible to prevent a phenomenon in which strobe light is emitted by the tip of the lens barrel during zooming, a red-eye effect due to strobe light emission, and the like.

The cam plate 37 is a side plate 93 located inside the camera body 11 on both side surfaces of the strobe light emitting section 90.
It is provided on the b side and is fixed to the front wall 11a of the camera body 11, the decorative plate 11b, and the cylindrical partition 43. As a result, the cam plate 37 forms a strength member of the camera body 11, and the support strength for the strobe light emitting unit 90 is increased. The reason why the cam plate 37 is provided on the side plate 93b side is that when an unexpected impact is applied, such as when the camera falls, a force is often received from the outside of the camera, so that strength is advantageous. Further, as the size of the camera is reduced, the light emitting portion of the strobe becomes closer to the taking lens (optical axis). It is desirable. Therefore, the cam plate 37 having a certain thickness and its peripheral members are connected to the camera body 11.
The strobe light emitting unit 90 is positioned at a distance from the photographing optical axis to the outside as much as possible by arranging it at the inside position. In addition, it is considered that the advantage that the complicated link mechanism 20 is located at the outer position has better assemblability.

In the cam link mechanism 10, the first torsion spring 4 is attached to the fixed shaft 32 of the strobe support 42.
0 coil part is wound. A pair of spring ends of the first torsion spring 40 is engaged with a spring hook 33 provided on an end of the first lever 30 and a spring hook 44 provided on the strobe support 42. First torsion spring 40
In the free state, the first lever 30 is urged to a rising rotation position (FIG. 9) for holding the strobe light emitting section 90 at the use position. When the first lever 30 is moved to the lowering rotation position (FIG. 7) for moving the strobe light emitting unit 90 to the non-use position, the first torsion spring 40 bends in a direction to approach the pair of spring ends.

The cam link mechanism 10 is operated in response to the movement of the zoom lens barrel 21. A pin fitting hole 24 is formed in the cylindrical surface of the second lens barrel 23. Inside the camera body 11, a lens barrel driven pin 55 is provided adjacent to the second lens barrel 23 so as to be linearly movable substantially in parallel with the advancing and retreating direction of the zoom lens barrel 21. Radial projection 5 fixed to lens barrel driven pin 55
6 is fitted in the pin fitting hole 24. Barrel driven pin 55
When the zoom lens barrel 21 is in the retracted position, the retracted position behind the camera is restricted by the pin fitting hole 24 (FIG. 7).
When the zoom lens barrel 21 advances to the photographable position, it moves to the advanced position (FIG. 9) in front of the camera. Both ends of a pin holding spring 57 are fixed to the radial projection 56 of the lens barrel driven pin 55 and the second lens barrel 23. The pin holding spring 57 is provided in order to remove play when the lens barrel driven pin 55 is at the advanced position.

The lens barrel driven pin 55 is connected to the strobe support 42.
It has a drive arm 58 projecting in the direction. On the other hand, a rotating plate 60 having a rotating operation arm 61 and a rotation positioning arm 62 extending in a plane direction is rotatably supported at a lower portion of one side surface of the strobe support 42. The rotation operation arm 61 is located at a position where it is disengaged from the drive arm 58 by the forward and backward movement of the lens barrel driven pin 55.

A first gear 65 is provided so as to be rotatable coaxially with the rotating plate 60. On the first gear 65, a spring hook projection 66 and an engagement projection 68 are formed. The spring end of the second torsion spring 67 is engaged with the spring hook projection 66 of the first gear 65 and the rotation positioning arm 62 of the rotating plate 60, respectively. When the second torsion spring 67 is in the free state, the rotation positioning arm 62
The rotation plate 60 and the first gear 65 are urged in the direction in which the engagement projection 68 engages with the engagement projection 68 to elastically couple them. Rotating plate 6
The zero and the first gear 65 can be relatively rotated in a direction in which the rotation positioning arm 62 and the engagement protrusion 68 are separated by bending the second torsion spring 67.

A second gear 70 is formed on the periphery of the first lever 30 at a position where the first lever 30 is pivotally connected to the fixed shaft 32, and the second gear 70 meshes with the first gear 65. As described above, the first lever 30 is rotationally urged by the first torsion spring 40 in a direction in which the strobe light emitting unit 90 pops up. Therefore, the first gear 65 meshing with the second gear 70 and the rotation plate 60 are also urged to rotate in the same pop-up direction (counterclockwise in FIGS. 7 and 9) by the first gear 65. The force by which the second torsion spring 67 elastically couples the rotating plate 60 and the first gear 65 is set to be stronger than the rotational urging force of the first torsion spring 40 on the first gear 65 in the pop-up direction.

The amount of movement of the lens barrel driven pin 55 from the advanced position to the retracted position is set slightly larger than the amount required for the strobe light emitting unit 90 to move from the use position to the non-use position. That is, when the strobe light emitting section 90 reaches the non-use position, the lens barrel driven pin 55 is retreated a little more, and as a result, the rotating plate 60 is slightly rotated relative to the gear lever first gear 65, and The torsion spring 67 flexes from the free state. As a result, the lens barrel driven pin 55 at the retracted position
The rattle can be eliminated.

The pop-up strobe 25 having the above structure is
It works as follows. 6 and 7 show the pop-up strobe 25 when the slide cover 15 is in the closed state (FIG. 1), that is, when the zoom lens barrel 21 is at the storage position. Since the zoom lens barrel 21 is in the retracted position, the barrel driven pin 55 is in the retracted position,
The drive arm 58 is engaged with the rotary operation arm 61 of the rotary plate 60 and pushes it toward the rear of the camera. The first gear 65 elastically coupled to the rotating plate 60 is integrally rotated, and locks the first lever 30 at the downwardly rotating position via the second gear 70. Therefore, the first torsion spring 40 bends, and a force urging the first lever 30 to rotate in the clockwise direction in FIG.
Since the first lever 30 is locked at the lower rotation position,
By the cam link mechanism 10 and the link mechanism 20, the strobe light emitting section 90 is held at the non-use position. At this time, the follower pin 39 of the second lever 35 is in contact with the lower end of the cam groove 38.

In this state, the slide cover 15 is
When the slider is slid from the closed position to the open position in FIG. 2, the main switch is turned on, the zoom motor is activated, and the zoom lens barrel 21 is extended to the photographable position (wide position). Zoom lens barrel 21 (second lens barrel 23)
Is advanced forward of the optical axis, the restriction of the pin fitting hole 24 for the lens barrel driven pin 55 is released, and the lens barrel driven pin 55 can move forward of the camera. Then, the rotation operation arm 61
The restriction of the driving arm 58 with respect to the rotation plate 6 is released.
The 0 and the first gear 65 are rotatable in the counterclockwise direction in FIG. 7, and the rotation of the first lever 30 that engages the second gear 70 with the first gear 65 is allowed. Then, the bending of the first torsion spring 40 is released, and the first lever 30 is turned to the upper turning position. The first gear 65 and the rotation plate 60 follow this, and rotate in the counterclockwise direction in FIG. Barrel driven pin 5
5 moves to the advanced position following the zoom lens barrel 21. In the advanced position, the pin holding spring 57 holds the lens barrel driven pin 55 without play.

When the first lever 30 is turned to the upper turning position, the position of the elevating shaft 31 of the strobe light emitting section 90 changes in an arc toward the upper part of the camera. At the same time, the second lever 35 moves the supported pin 9
5 moves obliquely upward while sliding in the support elongated hole 36. At this time, the follower pin 39 slides to the upper end of the cam groove 38 to control the movement trajectory of the second lever 35 constant, and the follower pin 39 contacts the upper end of the cam groove 38,
By stopping, the light emitting surface of the strobe (strobe lens 9
The strobe light-emitting portion 90 is defined at a use height and a use posture that 1) protrudes from the camera body 11 by a fixed amount and forms a plane orthogonal to the optical axis of the zoom lens barrel 21. on the other hand,
The link mechanism 20 on the side plate 93a also follows this, and the first lever 50 is turned to the ascending turning position. In response,
The strobe support 42 whose rotation position is controlled by the third lever 47 is moved obliquely upward. Accordingly, the strobe light emitting section 90 is pushed up to a position where the follower pin 39 contacts the upper end of the cam groove 38, that is, the strobe lens 91 is used upright toward the front of the camera.

The pop-up operation is performed by using the restoring force (deflection releasing force) of the first torsion spring 40. When the main switch is turned on, the zoom lens barrel 21 (the second lens barrel 23) advances. Accordingly, when the lens barrel driven pin 55 moves forward of the camera, the strobe light emitting section 90 is almost simultaneously.
Moves to the use position. The photographer operates the mode dial 17 provided on the upper end surface of the grip portion 12 to select a light emission mode and perform photographing.

FIGS. 8 and 9 show the state in which the slide cover 15 is in the fully opened state (FIG. 2), that is, the zoom lens barrel 2
Reference numeral 1 denotes a pop-up strobe when moved to a photographable position. In this state, when the slide cover 15 is slightly slid from the fully open position to the closed position, the main switch is turned off, the zoom motor starts in the storage direction, and the zoom lens barrel 21 moves from the photographable position to the storage position. Is done. Then, the radial projection 56 is pushed backward of the camera, and the lens barrel driven pin 55 is moved to the zoom lens barrel 2.
1 and is slid to the rearward movement position (FIG. 7).
When the lens barrel driven pin 55 is retracted, the drive arm 58 is engaged with the rotation operation arm 61 of the rotation plate 60, and the rotation plate 60 is moved clockwise in FIG. 9 against the first torsion spring 40. Rotate. Thereby, the rotation plate 60 and the first gear 65 rotate clockwise. In response to the rotation of the first gear 65, the first lever 30 meshing the first gear 65 with the second gear 70 rotates the first torsion spring 40 counterclockwise around the fixed shaft 32 while bending the first torsion spring 40. Move. First torsion spring 4
Since the elastic holding force of the second torsion spring 67 is stronger than the urging force of 0, the second torsion spring 67 does not bend at this stage, and the rotating plate 60 and the first gear 65 are integrally rotated.

At this time, the cam link mechanism 10 and the link mechanism 20 perform an operation reverse to that at the time of the pop-up. When the first lever 30 moves to the lower rotation position, the second lever 3
5 moves obliquely downward while controlling the rotational position until the follower pin 39 contacts the lower end of the cam groove 38. At the same time, since the first lever 50 has also been moved to the lower rotation position via the connecting portion 50a, the second lever 45 pushes the third lever 47 downward, and the second lever 45 and the third lever 47 are connected. The second lever 45 is rotated obliquely downward while controlling the rotation position of the second lever 45 by rotating the third lever 47 clockwise around the fixed shaft 48 in FIG. Moved to Thus, the strobe light emitting section 90
Is pulled into a non-use position where the top plate 92 is substantially flush with the upper surface of the camera body 11 by the cam link mechanism 10 and the link mechanism 20. In this non-use position, the first torsion spring 40 is bent, and the charging of the pop-up operation is completed.

Further, since the zoom lens barrel 21 is retracted slightly more than after the strobe light emitting section 90 reaches the non-use position and the storing operation is completed, the rotating plate 60 locks the first gear 65. The rotation positioning arm 62 is relatively rotated in a direction away from the engagement protrusion 68 more than the position. Then, the second torsion spring 67 is bent, and the lens barrel driven pin 55 is held at the retracted position without rattling. Hereinafter, the similar operation is repeated by the advance / retreat of the zoom lens barrel 21.

When the storing operation is performed without any problem, the second torsion spring 67 is bent after the strobe light emitting portion 90 is moved to the non-use position, and the lens barrel driven pin 55 is held. On the other hand, if the stowage operation of the strobe light emitting unit 90 is hindered due to a forcible operation such as a foreign object being pinched or intentionally pressed, the second torsion spring 67 bends and turns when the stowage operation occurs. The relative rotation between the moving plate 60 and the first gear 65 is allowed. Specifically, the rotation plate 60 is rotated in accordance with the retreating operation of the zoom lens barrel 21, but the first gear 65 constituting the gear link mechanism is not rotated. That is,
The bending of the second torsion spring 67 can be escaped to prevent the gear from being damaged.

As described above, since one side of the strobe light emitting section 90 is supported by the cam link mechanism 10 having the cam plate 37, the side of the strobe support 42 which is located inside the camera body 11 is provided. Does not require the third lever 47 and its fixed shaft 48. In other words, the strobe support means for providing the strobe light emitting section 90 with a predetermined height at the use position can be made compact with a small number of parts. Also,
Since the position where the follower pin 39 comes into contact with the upper end of the cam groove 38 and stops is the strobe use position, the light emitting surface (strobe lens 91) can be positioned at a predetermined use height and use posture without any shift.

The one side of the strobe light emitting section 90 is supported by the cam link mechanism 10 and the other side is supported by the link mechanism 20 for the following reason. When trying to support both sides of the strobe light emitting section 90 with the cam link mechanism, if the sliding position between each follower pin and each cam groove is displaced by the cam link mechanisms on both sides, one of the follower pins is The strobe light emitting unit 90 cannot be accurately driven because it cannot move to the end. Particularly, at the use position, there arises a problem that the strobe lens 91 is inclined or a predetermined height position cannot be obtained. Therefore, the position adjustment in a state where the follower pins on both sides stop in contact with the ends of the respective cam grooves must be performed by each of the pair of cam plates, and the adjustment process is troublesome and the assemblability deteriorates. . Therefore, it is desirable that one side of the strobe light emitting section 90 be supported by the cam link mechanism 10 and the other side be supported by the link mechanism 20. In this case, in order to use the cam plate 37 as a strength member as described above, the cam link mechanism 10 supports the side plate 93 b located inside the camera body 11 on both side surfaces of the strobe light emitting unit 90.

The pop-up strobe 25 is driven by using the moving force of the zoom lens barrel 21.
With a simple mechanism, it can be automatically moved between the use position and the non-use position according to the ON / OFF of the main switch. In other words, there is no trouble in the operation, and there is no risk of forgetting to emit the strobe.

The present invention is not limited to the above embodiment. For example, the paired first levers 30, 50 are
Even if they are not connected by the connecting portion 50a, one can be driven by the other through the operation of the strobe light emitting portion 90. In the above description, the strobe light emitting section 9
A pair of supported pins 95, 96 are
And a pair of crank-shaped second levers 35,
45 are fitted in the supporting elongated holes 36 and 46 relatively slidably. Conversely, similar pin members are protruded from the second levers 35 and 45, and the side plates 93a and 93b of the strobe light emitting section 90 are provided.
Further, an elongated hole into which the pin member is slidably fitted can be formed.

In the above-described embodiment, the taking lens is the zoom lens barrel 21. However, any lens having a fixed focal length may be a camera in which the taking lens moves between the retracted position and the photographable position when the power is turned on and off. For example, the present invention can be applied to the present invention, and the present invention can be applied to a camera that turns on and off a power supply regardless of opening and closing of a slide cover.

[0039]

As described above, according to the present invention, the strobe can be moved between the non-use position inside the camera and the use position exposed to the outside by the support structure that is compact, has a small number of parts, and has excellent strength. A camera with a built-in strobe can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of a camera with a built-in flash according to the present invention in a state where a taking lens is stored.

FIG. 2 is a front view of the camera in a photographable state.

FIG. 3 is a plan view of the camera in a photographable state.

FIG. 4 is a side view of the camera in a photographable state.

FIG. 5 is a front view of the pop-up strobe in a use state.

6 is a side view of the strobe light emitting unit and the link mechanism in a state where the strobe is not used (stored), as viewed from the direction of arrow VI in FIG. 5;

FIG. 7 is a side view of the strobe light emitting unit and the cam link mechanism in a state where the strobe is not used (stored), as viewed from the direction of arrow VII in FIG.

8 is a side view showing a state where the strobe light emitting unit and the link mechanism of FIG. 6 have shifted to a strobe use state.

9 is a side view showing a state in which the strobe light emitting unit and the cam link mechanism of FIG. 7 have shifted to a strobe use state.

[Explanation of symbols]

 Reference Signs List 10 cam link mechanism 11 camera body 15 slide cover 20 link mechanism 21 zoom lens barrel 25 pop-up strobe 30 50 first lever 35 45 second lever 36 46 long supporting hole 37 cam plate 38 cam groove 39 follower pin 40 first torsion spring 42 Strobe support 47 Third lever 50a Connecting portion 55 Barrel driven pin 60 Rotating plate 65 First gear 67 Second torsion spring 70 Second gear 90 Strobe block 93a 93b Side plate

Claims (6)

[Claims] 1. A strobe built-in camera having a strobe light emitting portion movable between a non-use position in a camera body and a use position protruding from the camera body, wherein a fixed shaft provided on the camera body and a body-side fixation are provided. An elevating shaft provided on the strobe light-emitting unit casing, which is parallel to the axis; located on both side surfaces of the strobe light-emitting unit housing, one end and the other end are pivotally attached to the fixed shaft and the elevating shaft, respectively. A pair of first levers; a pair of crank-shaped second levers located on one side and the other side of the strobe light-emitting unit housing and respectively pivotally mounted on the pair of first levers; When the crank-shaped second lever swings on the first lever, which is provided between one end of the lever and the side surface of the strobe light-emitting unit casing, the strobe light-emitting unit casing is moved around the elevating shaft. Rotate An interlocking mechanism that controls one rotation position of the pair of crank-shaped second levers when the first lever rotates about the fixed shaft; A third lever pivotally connected to a camera body; and controlling the other rotational position of the pair of crank-shaped second levers when the first lever rotates about the fixed shaft. A cam mechanism provided between the other end of one of the crank-shaped second levers and the camera body; 2. The camera with a built-in flash according to claim 1, wherein the cam mechanism includes a follower pin provided at the other end of the one crank-shaped second lever, and a cam groove for engaging the follower pin. A built-in flash camera consisting of a cam plate fixed to the camera body. 3. The camera with a built-in strobe according to claim 2, wherein the cam plate is provided on both sides of the strobe light emitting unit housing.
A camera with a built-in strobe provided on the side surface located inside the camera body and constituting a strength member of the camera body. 4. The camera with a built-in strobe according to claim 1, further comprising a photographing lens barrel movable between a storage position and a photographing position, wherein one of said pair of first levers is A camera with a built-in strobe that rotates about the fixed axis by a moving force between a storage position of the photographing lens barrel and a photographing position. 5. The built-in flash camera according to claim 1, wherein the pair of first levers are connected to each other. 6. The crank-shaped second lever according to claim 1, wherein the interlocking mechanism includes a pin protruding from a side surface of the strobe light emitting unit housing and the pin fitted relatively slidably. And a long hole formed at one end of the camera.