JP5953761B2 - Light emitting device support mechanism - Google Patents

Description

  The present invention relates to a light emitting device provided in, for example, a camera body of an interchangeable lens camera, and more particularly to a support mechanism that connects the light emitting device and the camera body.

  Conventionally, the light emitting device of the interchangeable lens camera is configured to be housed in the camera body when not in use and to pop up from the camera body when in use. The pop-up height of the light emitting device is preferably as large as possible so that the illuminating light from the light emitting device is not blocked by the photographing lens protruding forward from the camera body. As light emitting devices connected so as to pop up with respect to the camera body, for example, those disclosed in Patent Documents 1 and 2 are known.

JP 2010-191017 A Japanese Patent Laid-Open No. 8-54669

  According to the pop-up mechanism of the light emitting device disclosed in Patent Document 1, there is no problem in the case of a camera in which the projection amount of the photographing lens is not so large, such as a compact camera. The problem of becoming insufficient occurs. On the other hand, according to the pop-up mechanism of the light emitting device disclosed in Patent Document 2, the amount of pop-up is sufficient, but storage in the camera body is not considered.

  The present invention provides a light emitting device capable of sufficiently increasing the height of a pop-up even in an interchangeable lens camera having a large projection amount of a photographing lens from the camera body, and capable of being compactly accommodated in the camera body. It aims to provide a support mechanism.

  The light emitting device support mechanism according to the present invention includes a camera body, a first arm pivotally supported by the first support portion, and a second support different from the first support portion at the end of the first arm. And a light-emitting unit support member attached to a light-emitting unit having a light-emitting part, which is rotatably connected to a third support part different from the second support part. And the first arm, the connecting member, and the light emitting unit support member are housed in the housing recess of the camera body, the first arm and the light emitting unit support member are parallel to each other, and the light emitting unit is It is characterized by being close to one support part.

  The support mechanism of the light emitting device includes a camera body including a second arm pivotally supported by a fourth support portion different from the first support portion, and an end portion of the second arm is coupled to the third support portion. It is preferable. In this configuration, the third support portion is further provided with a spring, and one end of the spring is locked to the light emitting unit support member, and the other end of the spring is locked to the second arm. It may be configured. In this configuration, the light emitting unit support member and the second arm are urged in a direction in which the angle formed approaches 180 degrees, and thereby the light emitting device automatically pops up. In the state where the first and second arms, the connecting member, and the light emitting unit are housed in the housing recess of the camera body, it is preferable that the second arm and the light emitting unit are parallel to each other.

  The support mechanism of the light emitting device is provided on the camera body so as to be displaceable, and a locking claw that can be engaged with the light emitting unit support member in a state where the first arm, the connecting member, and the light emitting unit support member are stored in the storage recess. , A locking claw driving unit disposed in the camera body for displacing the locking claw, and the first arm, the connecting member, the locking claw, and the locking claw when the camera body is viewed from the front side. The drive unit may be configured to fit within the width of the light emitting unit. According to this, the light emitting device becomes compact as a whole.

  In addition, a circular lens mount for mounting the lens barrel is formed on the front surface of the camera body, and a rectangular imaging device is arranged on the back side of the camera body so that the center is located at the center of the lens mount. It is preferable that the inner bottom surface of the storage recess is located between the lower edge of the upper edge of the lens mount and the upper side of the imaging area of the imaging device.

  Further, the second light emitting device support mechanism according to the present invention is different from the first support portion at the end of the first arm and the first arm pivotally supported by the camera body at the first support portion. A connecting member rotatably connected to the second support portion; and a light-emitting unit having a light-emitting portion connected rotatably to a third support portion different from the second support portion in the connecting member; The first arm, the connecting member, and the light emitting unit have a U-shape when viewed from the side of the camera body in a state where the one arm, the connecting member, and the light emitting unit are stored in the storage recess of the camera body. It is a feature.

  According to the present invention, the height of the pop-up of the light emitting device can be sufficiently increased even in a camera having a large amount of projection of the photographing lens from the camera body, and can be stored compactly in the camera body. An effect is obtained.

1 is a perspective view of a camera body of an interchangeable lens camera to which an embodiment of the present invention is applied. It is sectional drawing which shows the state in which a part of structure in a camera main body was extracted and shown and the light-emitting device was accommodated in the accommodation recessed part. It is a front view which shows roughly the camera main body in the state in which the light-emitting device was accommodated in the accommodation recessed part. It is sectional drawing which shows the same part as FIG. 2, and shows the state which the light-emitting device popped up. It is a perspective view which shows the support mechanism of a light-emitting device. It is a front view which shows the support mechanism of a light-emitting device. It is a side view which shows the support mechanism of a light-emitting device. It is the side view which shows the accommodation state of the light-emitting device, and fractures | ruptures and shows the part provided with the pop-up spring. It is the side view which shows the accommodation state of the light-emitting device, and fractures | ruptures and shows the part provided with the stopper. It is a side view which shows the state in the middle of a light-emitting device popping up, and fracture | ruptures and shows the part provided with the pop-up spring. It is the side view which shows the state in the middle of pop-up of a light-emitting device, and fractures | ruptures and shows the part provided with the stopper. It is a side view which shows the state where the light-emitting device popped up.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows the appearance of an interchangeable lens camera, and shows a state in which the lens barrel is removed from the camera body 10. This camera is a so-called mirrorless type, is not provided with an optical viewfinder, and the subject image is displayed on a monitor provided on the back of the camera body 10. A mode dial 11 for selecting a shooting mode or the like is provided on the upper surface of the camera body 10, and a light emitting device 30 is provided beside the mode dial 11. A light emitting button 39 (see FIG. 3) for popping up the light emitting device 30 is provided on the upper surface of the camera body 10. In FIG. 1, the light emitting device 30 is housed in the camera body 10.

  A lens mount 12 for mounting a lens barrel is formed on the front surface of the camera body 10. The lens mount 12 has a circular shape, and is positioned directly below the optical device 30 when the camera body 10 is viewed from the front. The lens mount 12 is provided with a contact 13 for performing data communication between the control system in the camera body 10 and the control system in the lens barrel, a claw 14 for attaching the lens barrel, and the like.

  FIG. 2 shows a part of the structure inside the camera body. The lens mount 12 is fixed to the front surface of the dark box 15. On the upper part of the dark box 15, a housing recess 16 is formed in which the light emitting device 30 can be freely inserted and retracted. An image sensor 17 is provided on the back side of the camera body, and a shutter 18 is provided between the image sensor 17 and the dark box 15. An imaging region 17 a provided on the front surface of the imaging element 17 is covered with a cover glass 19. As shown in FIG. 3, the imaging area 17 a has a rectangular shape when the camera body is viewed from the front, and the imaging element 17 is arranged so that the center of the light receiving surface 19 is located at the center of the lens mount 12. The width of the storage recess 16 is smaller than the width of the lens mount 12.

  In the present embodiment, the storage recess 16 is formed in the upper part of the lens mount 12 and is considered to be positioned as low as possible so that the amount of the upper surface 31 of the light emitting device 30 protruding from the upper surface of the camera body is minimized. That is, when viewed from the upper end 12 a of the lens mount 12, the height from the upper end 12 a to the inner bottom surface 25 of the housing recess 16 is larger than the height from the upper end 12 a to the upper surface 31 of the light emitting device 30. The inner bottom surface 25 of the housing recess 16 is located between the lower edge 21a of the engaging claw provided on the upper edge 21 of the lens mount 12 and the upper side 22 of the imaging area 17a as shown in FIG. The front end surface 23 of the recess 16 is located on the back side of the camera body with respect to the lens mount 12. That is, all of the storage recess 16 and the light emitting device 30 in the storage state are located on the back side of the lens mount 12.

  As described above, the housing recess 16 is provided at the lowest position as long as the lower end 20 does not interfere with the incident light from the photographing lens, whereby the upper surface 31 of the light emitting device 30 is provided on the upper surface of the camera body 10. It is substantially the same height as a member other than the light emitting device 30 (mode dial 11 in this embodiment), and does not protrude larger than this member. Further, depending on the design of the imaging lens, the lower end 20 of the storage recess 16 can be further set downward, and the inner bottom surface 25 of the storage recess 16 is set downward so that the lower end 20 is as close as possible to the upper side 22 of the imaging region 17a. What is necessary is just to be located.

  As understood from FIG. 2, the height of the light emitting device 30 in the housed state, that is, the height from the inner bottom surface 25 to the upper surface 31 is smaller than the height of the dark box 15, and the light emitting device 30 is compactly folded. It is stored in the storage recess 16.

  FIG. 4 shows a state where the light emitting device 30 pops up. The light emitting device 30 is rotatably supported on the camera body by a first arm 32 and a second arm 33, and the light emitting unit 34 pops up when these arms 32 and 33 are raised from the stored state of FIG. . In the pop-up state, the first arm 32 is substantially perpendicular to the bottom surface of the housing recess 16, the second arm 33 is inclined toward the image sensor 17 with respect to the first arm 32, and the light emitting unit 34 The front surface of the light emitting unit 35 is substantially parallel to the surface of the lens mount 12.

  Referring again to FIG. 2, the first and second arms 32 and 33 in the storage state, that is, in the state where the first and second arms 32 and 33, the connecting member 36 and the light emitting unit 34 are stored in the storage recess 16. The light emitting units 34 are parallel to each other, the light emitting unit 35 is close to a pin 41 to be described later, and the connecting member 36 that connects the first arm 32 and the light emitting unit 34 includes the arms 32 and 33 and the light emitting unit. 34 is substantially perpendicular. That is, the light emitting device 30 has a U shape when viewed from the side of the camera body in the housed state.

  The structure of the support mechanism for the camera body of the light emitting device 30 will be described with reference to FIGS. The first arm 32 is pivotally supported on the camera body by a pin 41 which is a first support portion. The connecting member 36 is rotatably connected to the tip of the first arm 32 by a pin 42 that is a second support portion. The light emitting unit 34 is rotatably connected to the pin 43 of the third support portion located at the end of the connecting member 36 opposite to the pin 42. The second arm 33 is pivotally supported on the camera body by a pin 44 which is a fourth support portion different from the pin 41 of the first support portion. The tip of the second arm 33 is connected to the pin 43 of the third support part. Thus, the first and second arms 32 and 33, the connecting member 36, and the pins 41 to 44 constitute a link mechanism.

  An arc-shaped slit 52 is formed in the side wall 51 of the light emitting unit 34. An engagement pin 53 is fixed to a portion of the second arm 33 adjacent to the pin 43, and the engagement pin 53 engages with the arc-shaped slit 52. The light emitting unit 34 is rotatable with respect to the second arm 33 within a range where the engaging pin 53 engages with the arc-shaped slit 52. That is, the engaging pin 53 is locked to one end of the arc-shaped slit 52 in the retracted state of FIG. 2, and is locked to the other end of the arc-shaped slit 52 in the pop-up state of FIG.

  The pin 43 is provided with a pop-up spring 54 that is a coil spring. One end of the spring 54 is locked to the light emitting unit 34, and the other end is locked to the engaging pin 53, that is, the second arm 33 (see FIGS. 8 and 10). By means of the spring 54, the light emitting unit 34 and the second arm 33 are constantly urged in a direction in which the angle formed between them approaches 180 degrees. For example, in the storage state shown in FIG. 2, the angle formed between the light emitting unit 34 and the second arm 33 is approximately 0 degrees, and the light emitting unit 34 rotates in a direction away from the second arm 33 around the pin 43. Be energized by. In the pop-up state shown in FIG. 4, the light emitting unit 34 is urged in a direction in which the angle formed with the second arm 33 becomes larger, but the engaging pin 53 is locked to the end of the arc-shaped slit 52. The angle formed between the light emitting unit 34 and the second arm 33 does not increase any more.

  A locking claw 61 is provided on the upper surface of the camera body and on the side of the storage recess 16. The locking claw 61 is displaceable along the front-rear direction of the camera body 10, that is, along the plane parallel to the plane on which the first and second arms 32, 33 rotate, and the first and second arms 32, 33. The connecting member 36 and the light emitting unit 34 can be engaged with the light emitting unit 34 in a state where the connecting recess 36 is housed in the housing recess 16 (the housing state shown in FIG. 2). On the lower surface of the light emitting unit 34, a groove 62 for engaging the locking claw 61 is formed.

  A locking claw driving unit 63 for displacing the locking claw 61 is disposed in the camera body 10. The locking claw driving unit 63 includes an electromagnet 64, a movable member 65, and a locking spring 66. The locking claw 61 is rotatable around a fulcrum (not shown), and the movable member 65 is connected to a swinging portion on the opposite side of the locking claw 61 with the fulcrum interposed therebetween. The locking claw 61 is urged forward (rightward in FIG. 7) of the camera body 10 by a locking spring 66. When the electromagnet 64 is energized, the movable member 65 protrudes to the right in FIG. 7, and the interlocking claw 61 is retracted to the left in FIG. That is, in the storage state shown in FIG. 2, the locking claw 61 engages with the groove 62, whereby the light emitting unit 34 is held in the storage state, but when the light emitting button 39 is pressed and the electromagnet 64 is energized, The locking claw 61 moves backward to release the groove 62, and the light emitting unit 34 pops up.

  As can be understood from FIG. 6, the first arm 32, the connecting member 36, and the locking claw drive unit 63 are configured to fit within the width of the light emitting unit 35 when the camera body is viewed from the front side. Has been. Each of the first arm 32 and the connecting member 36 accommodates a lead wire for electrically connecting the light emitting unit 34 and an electronic circuit (not shown), and the shaft of the pin 41 of the first arm 32 and the connecting member 36 is accommodated. The length along the direction is smaller than the width of the light emitting portion 35, and the locking claw driving portion 63 and the locking claw 61 are disposed in the space formed between the first arm 32 and the second arm 33. ing.

With reference to FIGS. 8-11, the structure and effect | action of the pop-up mechanism employ | adopted in this embodiment are demonstrated.
As described above, the pop-up spring 54 is provided on the pin 43 of the third support portion that extends through the connecting member 36. Further, the connecting member 36 is formed with a stopper 71 formed by bulging a part of the disk outward in the radial direction. The stopper 71 can come into contact with a contact surface 72 formed on the light emitting unit 34. On the other hand, the second arm 33 has a protrusion 73 extending in the direction opposite to the pin 43 of the third support portion in the vicinity of the pin 44. The protrusion 73 can be engaged with a stopper pin 74 fixed to the camera body.

  In the housed state of the light emitting device, as shown in FIGS. 8 and 9, the angle formed by the light emitting unit 34 and the second arm 33 is approximately 0 degrees. The light emitting unit 34 is substantially perpendicular to the connecting member 36, and the stopper 71 is separated from the contact surface 72. In this state, when the locking claw 61 moves backward to release the light emitting unit 34, the light emitting unit 34 is rotated with respect to the connecting member 36 by the urging force of the spring 54, as shown in FIGS. Further, the light emitting unit 34 rises with respect to the connecting member 36. When the stopper 71 comes into contact with the contact surface 72 of the light emitting unit 34, the light emitting unit 34 stops rotating with respect to the connecting member 36, and the light emitting unit 34 and the second arm 33 are moved by the biasing force of the spring 54. It changes so that the formed angle becomes large. That is, as shown in FIG. 12, the second arm 33 rises by rotating around the pin 44, and stops at a position where the protrusion 73 is engaged with the stopper pin 74.

  As described above, since the support mechanism of the light emitting device 30 of the present embodiment connects the light emitting unit 34 to the first arm 32 via the connecting member 36, the pop-up height of the light emitting unit 34 becomes sufficiently large. The occurrence of vignetting is prevented even if the projection amount of the photographic lens mounted on the camera body 10 is large.

  Further, when the light emitting unit 34 is in the housed state, the light emitting device 30 is folded so as to be entirely U-shaped, so that it is housed in the housing recess 16 in a compact manner. Further, the inner bottom surface 25 of the housing recess 16 is located between the upper edge 21 of the lens mount 12 and the upper side 22 of the light receiving surface 19 of the image sensor 17, and the front end surface 23 of the housing recess 16 is more than the lens mount 12. Located on the back side of the camera body. Therefore, the storage recess 16 can be disposed as low as possible, and the amount of protrusion of the upper surface 31 of the light emitting device 30 from the upper surface of the camera body 10 can be kept small.

  In the above embodiment, the pop-up spring 54 is provided only on the pin 43, but instead of this, a spring may be provided on the pins 41 and 42 and provided between the light emitting unit 34 and the connecting member 36. Well, according to such a configuration, the second arm 33 can be omitted.

  The light emitting unit 34 may be configured not to provide the electromagnet 64 but to mechanically disengage the locking claw 61 when the light emitting button 39 is pressed.

DESCRIPTION OF SYMBOLS 10 Camera main body 16 Storage recessed part 32 1st arm 34 Light-emitting unit 36 Connecting member 41 Pin (1st support part)
42 pin (second support part)
43 pin (3rd support part)
44 pins (4th support part)

Claims (5)

A first arm pivotally supported by a first support on the camera body;
A connecting member rotatably connected to an end portion of the first arm in a second support portion different from the first support portion;
A light-emitting unit having a light-emitting unit that is rotatably connected to a third support unit different from the second support unit in the connection member;
In a state in which the said first arm and the connecting member and the light emitting unit housed in the housing recess of the camera body, ready for the first arm and the light-emitting unit is opposed to each other, the light emitting portion is the Close to the first support ,
The camera body includes a second arm pivotally supported by a fourth support portion different from the first support portion, and an end portion of the second arm is connected to the third support portion,
A spring is provided in the third support portion, and one end portion of the spring is engaged with the light emitting unit, and the other end portion of the spring is engaged with the second arm, The light emitting device support mechanism, wherein the second arm is biased in a direction in which an angle formed approaches 180 degrees . The second arm and the light emitting unit are parallel to each other when the first and second arms, the connecting member, and the light emitting unit are housed in the housing recess of the camera body. The support mechanism of the light-emitting device according to claim 1 . A locking claw that is displaceably provided on the camera body, and is engageable with the light emitting unit in a state where the first arm, the connecting member, and the light emitting unit are housed in the housing recess;
Said camera is disposed in the main body, and a locking pawl driver for displacing the locking claw,
The first arm, the connecting member, the locking claw, and the locking claw driving unit are within the width of the light emitting unit when the camera body is viewed from the front side. Item 4. A support mechanism for a light-emitting device according to Item 1.   A rectangular lens mount for mounting a lens barrel on the front surface of the camera body is formed, and a rectangular imaging device is arranged on the back side of the camera body so that the center is located at the center of the lens mount. The light emitting device according to claim 1, wherein an inner bottom surface of the housing recess is positioned between a lower edge of the upper edge portion of the lens mount and an upper side of the imaging region of the imaging element. Support mechanism. A first arm pivotally supported by a first support on the camera body;
A connecting member rotatably connected to an end portion of the first arm in a second support portion different from the first support portion;
A light-emitting unit having a light-emitting unit that is rotatably connected to a third support unit different from the second support unit in the connection member;
When the first arm, the connecting member, and the light emitting unit are housed in the housing recess of the camera body, the first arm, the connecting member, and the light emitting unit are viewed from the side of the camera body. and coloration of the U-shape,
The camera body includes a second arm pivotally supported by a fourth support portion different from the first support portion, and an end portion of the second arm is connected to the third support portion,
A spring is provided in the third support portion, and one end portion of the spring is engaged with the light emitting unit, and the other end portion of the spring is engaged with the second arm, The light emitting device support mechanism, wherein the second arm is biased in a direction in which an angle formed approaches 180 degrees .

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